CN120244859B - Clamping tool for turbine housing sector of aero-engine - Google Patents
Clamping tool for turbine housing sector of aero-engineInfo
- Publication number
- CN120244859B CN120244859B CN202510743298.3A CN202510743298A CN120244859B CN 120244859 B CN120244859 B CN 120244859B CN 202510743298 A CN202510743298 A CN 202510743298A CN 120244859 B CN120244859 B CN 120244859B
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- moving
- block
- tool body
- gland
- workpiece
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention relates to the technical field of aero-engine part manufacturing, and discloses a clamping tool for a turbine shell sector of an aero-engine, which comprises the following components: the pressing device comprises a pressing cover and a pressing block, wherein the pressing cover can move along the axial direction of a tool body, the pressing block moves towards the inner side along the radial direction of the tool body in the process that the pressing cover is far away from a workpiece, the pressing block moves towards the outer side along the radial direction of the tool body in the process that the pressing cover is close to the workpiece, so that the pressing cover and the pressing block are in contact with the workpiece to form a pre-compression state, the pressing cover can also move along the circumferential direction of the tool body, so that the pressing cover in the pre-compression state compresses the workpiece along the axial direction of the tool body, and the pressing block in the pre-compression state compresses the workpiece along the radial direction of the tool body. According to the invention, the parts are not required to be pressed and fixed by the screws, so that the parts are more convenient to install and detach, the labor intensity of workers is reduced, and the working efficiency is improved.
Description
Technical Field
The invention relates to the technical field of aero-engine part manufacturing, in particular to a clamping tool for a turbine shell sector of an aero-engine.
Background
Aeroengine turbine housings are one of the important components of aeroengines. The bearing part belongs to a casing part, is a main bearing part on an aeroengine, is a key part for bearing load and containing the engine, and is a typical thin-wall structure part.
The part at the end part of the turbine shell of the aeroengine (also called as a1 st-stage turbine shell sector) is composed of 9 turbine shell sectors, the turbine shell sectors have the characteristics of complex shape, thin wall and the like, and are incomplete annular parts, when the intrados of the turbine shell sectors are worn and damaged, the intrados needs to be repaired through laser surfacing, and after repair, the intrados also needs to be finished.
During finish machining, the turbine housing sector needs to be clamped, however, the existing clamping tool needs to compress the turbine housing sector through the screw when the turbine housing sector is installed, and the screw needs to be removed firstly when the turbine housing sector is disassembled, so that the turbine housing sector can be taken down, and the working efficiency is reduced.
Disclosure of Invention
The application discloses a clamping tool for a turbine housing sector of an aeroengine, which aims to solve the problem of low efficiency in mounting and dismounting the turbine housing sector in the prior art.
In order to solve the problems, the invention adopts the following technical scheme:
A clamping frock for aeroengine turbine casing sector includes:
The gland is arranged on the tool body and used for clamping a workpiece placed on the tool body along the axial direction of the tool body;
the pressing block is arranged on the tool body, is connected with the pressing cover through the linkage mechanism and is used for clamping a workpiece placed on the tool body along the radial direction of the tool body;
the pressing cover can move along the axial direction of the tool body, the pressing block moves towards the inner side along the radial direction of the tool body by the linkage mechanism in the process that the pressing cover is far away from the workpiece, and the pressing block moves towards the outer side along the radial direction of the tool body by the linkage mechanism in the process that the pressing cover is close to the workpiece, so that the pressing cover and the pressing block are in contact with the workpiece to form a pre-pressing state;
The pressing cover can also move along the circumferential direction of the tool body, so that the pressing cover in a pre-compression state presses the workpiece along the axial direction of the tool body, and the pressing block in the pre-compression state presses the workpiece along the radial direction of the tool body.
The technical scheme adopted by the invention can achieve the following beneficial effects:
According to the invention, the pressing cover moves along the axial direction of the tool body, when the pressing cover moves along the direction away from the tool body, the pressing cover enables the pressing block to move towards the inner side along the radial direction of the tool body through the linkage mechanism, so that a worker can conveniently install a workpiece on the tool body, then the pressing cover moves towards the direction close to the tool body, one end of the workpiece is pre-pressed through the pressing cover, meanwhile, the pressing block moves towards the outer side along the radial direction of the tool body through the linkage mechanism, so that the pressing block pre-presses the other end of the workpiece, then the pressing cover rotates along the circumferential direction of the tool body, in the rotating process, the pressing cover in the pre-pressed state compresses the workpiece along the axial direction of the tool body, and meanwhile, the pressing cover enables the pressing block in the pre-pressed state to compress the workpiece along the radial direction of the tool body through the linkage mechanism, so that the positioning of the workpiece is realized. According to the invention, the workpiece is pre-compacted through the gland and the pressing block, so that the workpiece is prevented from moving before final compaction, progressive load increase is realized through two-stage compaction (pre-compaction and final compaction), the deformation or damage risk of the precise workpiece caused by instant impact load is reduced, and the workpiece is not required to be compacted and fixed through a screw, so that the workpiece is more convenient to mount and dismount, the labor intensity of workers is reduced, and the working efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an isometric view of a clamping tool disclosed in some embodiments of the present application;
FIG. 2 is an isometric view of a clamping tool with a hidden gland according to some embodiments of the present application;
FIG. 3 is a schematic cross-sectional view of a clamping tool according to some embodiments of the present application;
FIG. 4 is an enlarged schematic view of the structure shown at A in FIG. 3;
FIG. 5 is an enlarged schematic view of the structure at B in FIG. 4;
FIG. 6 is an enlarged schematic view of the structure at C in FIG. 4;
FIG. 7 is a cross-sectional isometric view of a clamping tool according to some embodiments of the present application;
FIG. 8 is an enlarged schematic view of the structure at D in FIG. 7;
FIG. 9 is an isometric view of a tooling body disclosed in some embodiments of the present application;
FIG. 10 is a first cross-sectional isometric view of a tool body according to some embodiments of the present application;
FIG. 11 is an enlarged schematic view of the structure at E in FIG. 10;
FIG. 12 is a second cross-sectional isometric view of a tooling body according to some embodiments of the present disclosure;
Fig. 13 is an enlarged schematic view of the structure at F in fig. 12;
FIG. 14 is a third cross-sectional isometric view of a tooling body according to some embodiments of the present disclosure;
fig. 15 is an enlarged schematic view of the structure at G in fig. 14;
FIG. 16 is a schematic illustration of the structure of a workpiece according to some embodiments of the application;
Fig. 17 is a schematic illustration of the structure of a plurality of workpieces in accordance with some embodiments of the application.
In the figure:
100-gland;
200-briquetting;
300-linkage mechanism, 310-first moving component, 311-first moving part, 3111-first moving slot, 3112-moving block, 3113-pull rod, 3114-first spring, 3115-sliding slot, 3116-sliding block, 3117-slot, 3118-connecting rod, 312-first wedge block, 3121-limit rod, 320-second moving component, 321-second moving part, 3211-second moving slot, 3212-fixed plate, 3213-moving rod, 3214-second spring, 322-second wedge block, 3221-limit slot;
400-first plug assembly, 410-first communication hole, 420-first plug rod, 430-first pull block, 440-first guide groove, 450-first guide block, 460-third spring;
500-second plug-in components, 510-second communication holes, 520-second plug-in rods, 530-second pull blocks, 540-second guide grooves, 550-second guide blocks and 560-fourth springs;
10-tooling body, 11-clamping part, 12-outer side surface, 13-inner side surface, 20-workpiece, 21-front concave section, 22-straight section, 23-rear concave section, 24-front groove and 25-rear groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.
The terms first, second, third, fourth and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate, such that embodiments of the application may be practiced otherwise than as specifically illustrated and described herein, and that the objects identified by "first," "second," "third," "fourth," etc. are generally of the same type and are not limited to the number of objects, such as the first object may be one or several. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
The inventor finds that in the actual use process, the former clamping tool clamps two ends of the turbine shell segments through the flat tongs and performs milling on the inner cambered surface of the turbine shell segments, however, the clamping positioning precision is poor, parts are easy to deform, only 1 turbine shell segment can be milled at one time, and the processing efficiency is low; after improvement, the existing clamping tool is arranged on a machine tool, the size and the position precision of parts are guaranteed through turning, although the 9 turbine housing segments can be machined at one time, after the turbine housing segments are installed on the clamping tool, the two ends of the turbine housing segments need to be pressed, namely, the two ends of each turbine housing segment need to be pressed and fixed by 2 screws respectively, namely, the machining is performed once, 36 screws need to be installed, when the machining is performed, the 36 screws need to be removed firstly, the turbine housing segments can be taken down, then the steps are repeated for installation and removal, so that the labor intensity of workers is high, the working efficiency is reduced, when the screws are installed, the screws at one end of the turbine housing segments are installed, and then the screws at the other end of the turbine housing segments are installed, and the screws are contacted with one end of the turbine housing segments in a single direction, so that the workpiece is easily offset, and the quality problem of workpieces can be caused by subsequent machining.
The application provides a clamping tool for a turbine housing sector of an aeroengine, which is described in detail below by means of a specific embodiment and application scenario thereof with reference to fig. 1 to 17.
Referring to fig. 1 to 4, 7 and 8, a clamping fixture for an aeroengine turbine casing sector comprises a gland 100 and a press block 200;
The gland 100 is arranged on the tool body 10 and is used for clamping a workpiece 20 placed on the tool body 10 along the axial direction of the tool body 10;
Specifically, referring to fig. 1, the gland 100 is annular in shape;
Referring to fig. 1 to 4 and 7 to 9, one end of a tool body 10 is connected with a shaft of a machine tool, the other end of the tool body 10 is used for installing a workpiece 20, the tool body 10 is in a circular ring shape, a circular ring-shaped clamping part 11 is arranged at the inner side of the tool body 10, the axial cross section of the clamping part 11 is L-shaped, the side surface of one end of the tool body 10, which is far away from the shaft of the machine tool, is an outer side surface 12, the outer side surface 12 is a circular ring-shaped plane, the outer side surface 12 is matched with a gland 100, the inner side of the tool body 10 is provided with a circular ring-shaped plane which is an inner side surface 13, and the inner side surface 13 is in sliding fit with a pressing block 200;
Referring to fig. 1 to 4, 7, 8, 16 and 17, the workpiece 20 is a turbine casing sector, the arc angle of the workpiece 20 is 39.9 degrees, the workpiece 20 comprises three parts, one end of the workpiece is a front concave section 21, the middle of the workpiece is a straight section 22, the other end of the workpiece is a rear concave section 23, the whole workpiece is in arc arrangement, the inner cambered surface of the straight section 22 is a surface to be finished, the axial section of the front concave section 21 is L-shaped, a front groove 24 is formed between the front concave section 21 and the straight section 22, the front groove 24 is matched with the clamping part 11, so that the front concave section 21 can be matched with the clamping part 11, when the workpiece 20 is mounted on the tool body 10, the lower part of one side of the front concave section 21, which is far away from the clamping part 11, extends out of the outer side 12 of the tool body 10, the upper part of one side of the front concave section 21, which is far away from the clamping part 11, can be flush with the outer side 12 of the tool body 10, and the upper part of one side of the front concave section 21, which is far away from the clamping part 11, is matched with 100;
In the embodiment, an elastic rubber pad (not shown) is arranged on one side of the gland 100 close to the tool body 10, and the upper part of one side of the front concave section 21 far away from the clamping part 11 is protected by the elastic rubber pad (not shown) of the gland 100;
Referring to fig. 3, fig. 4, fig. 7 and fig. 8, the tool body 10 utilizes the matching of the outer circle of the workpiece 20 and the inner diameter size of the tool body 10, so that each section of the workpiece 20 is attached to the tool body 10, 9 sections are clamped once, namely 9 turbine housing sections of the 1 st turbine housing section, each alignment is not needed, so that the coaxiality and the perpendicularity of the tool body 10 and the outer circle of the workpiece 20 can be controlled within a tolerance range, the dimension consistency of the machined workpiece 20 is very good, the repeated clamping positioning accuracy is high, and the product percent of pass is obviously improved.
Referring to fig. 3 and 7, the press block 200 is disposed on the tool body 10 and connected to the press cover 100 through the linkage mechanism 300, and the press block 200 is used for clamping the workpiece 20 disposed on the tool body 10 along the radial direction of the tool body 10;
specifically, referring to fig. 4, a certain distance between the press block 200 and the clamping part 11 is provided for facilitating the installation and the disassembly of the workpiece 20, and the press block 200 can be set according to practical situations, and the press block 200 moves along the radial direction of the inner side surface 13 of the tool body 10, and the press block 200 is in sliding fit with the inner side surface 13 of the tool body 10;
Specifically, referring to fig. 1, 2, 4 and 16, the vertical section of the press block 200 is arc-shaped, and is matched with the rear groove 25, the arc angle of the press block 200 is 32 ° -38 °, so that a gap is formed between each press block 200, and the press block 200 can move along the radial direction of the tool body 10;
the gland 100 can move along the axial direction of the tool body 10, the linkage mechanism 300 enables the press block 200 to move towards the inner side along the radial direction of the tool body 10 in the process that the gland 100 is far away from the workpiece 20, and the linkage mechanism 300 enables the press block 200 to move towards the outer side along the radial direction of the tool body 10 in the process that the gland 100 is close to the workpiece 20, so that the gland 100 and the press block 200 are in contact with the workpiece 20 to form a pre-compression state;
The pressing cover 100 can also move along the circumferential direction of the tool body 10, so that the pressing cover 100 in a pre-compression state compresses the workpiece 20 along the axial direction of the tool body 10 to realize final compression in the axial direction, and the pressing block 200 in a pre-compression state compresses the workpiece 20 along the radial direction of the tool body 10 to realize final compression in the radial direction.
Specifically, referring to fig. 4, 8 and 16, the pressing cover 100 performs pre-compression and final compression on an upper portion of the front concave section 21 of the work 20 on a side away from the engaging portion 11, and the pressing block 200 performs pre-compression and final compression on a bottom surface of the horizontal portion of the rear concave section 23 of the work 20 (i.e., a top surface of the rear groove 25).
According to the invention, the workpiece 20 is pre-compacted through the gland 100 and the press block 200, the workpiece 20 is preliminarily positioned, the movement of the workpiece 20 before final compaction can be prevented, progressive load increase can be realized through two-stage compaction (pre-compaction and final compaction), force can be applied more uniformly, positioning can be completed only by 30% -50% of final clamping force in the pre-compaction stage, larger clamping force can be realized through the mechanical gain of circumferential movement in the final compaction, and the deformation or damage risk of the instantaneous impact load to the precision workpiece 20 is reduced;
according to the clamping fixture, the workpiece 20 is not required to be pressed and fixed through the screws, so that the workpiece 20 is more convenient to install and detach, the clamping efficiency can be improved by 80% compared with the traditional clamping fixture, and the deformation of the workpiece 20 is controlled at the micron level.
In the present embodiment, however, gland 100 and compact 200 are simultaneously in contact with workpiece 20 when gland 100 and compact 200 are in a pre-compressed state.
Specifically, in the pre-pressing state, the pressing cover 100 and the pressing block 200 are simultaneously contacted with the workpiece 20, so that the workpiece 20 is prevented from being deviated due to the fact that the workpiece 20 is contacted in a single direction, and the quality problem of the workpiece 20 is caused by subsequent processing, and the tool is particularly suitable for special-shaped workpieces or thin-wall workpieces.
Referring to fig. 3, 4 and 7, in the present embodiment, the linkage mechanism 300 includes a plurality of first moving assemblies 310 and a plurality of second moving assemblies 320;
the first moving assemblies 310 and the second moving assemblies 320 are arranged in the tool body 10, and the first moving assemblies 310 and the second moving assemblies 320 are uniformly distributed along the circumferential direction of the tool body 10;
Specifically, in the present embodiment, the number of the first moving assemblies 310 is 9, and similarly, the number of the second moving assemblies 320 is 9, and the 9 first moving assemblies 310 and the 9 second moving assemblies 320 are respectively in one-to-one correspondence with the 9 turbine housing sectors;
The first moving assembly 310 is connected with the gland 100, the second moving assembly 320 is connected with the press block 200, and the first moving assembly 310 is in abutting fit with the second moving assembly 320, so that the press block 200 is driven to move in the moving process of the gland 100.
Specifically, when the gland 100 drives the first moving component 310 to move along the axial direction of the tool body 10 or move along the circumferential direction of the tool body 10, the first moving component 310 synchronously drives the second moving component 320 to move through abutting fit, so as to drive the pressing block 200 to move along the radial direction of the tool body 10.
Referring to fig. 4, in the present embodiment, the first moving assembly 310 includes a first moving part 311 and a first wedge block 312;
The first moving part 311 is connected with the gland 100, the first wedge block 312 is connected with the first moving part 311, and the first moving part 311 is used for limiting the movement of the gland 100;
specifically, the movement of the gland 100 includes axial movement of the gland 100 along the tooling body 10 and circumferential movement along the tooling body 10;
first wedge 312 is configured to be in abutting engagement with second moving assembly 320, so that press block 200 is driven to move during movement of gland 100.
Specifically, in the present embodiment, the lower portion side of the first wedge block 312 is provided obliquely.
Referring to fig. 5 and 8, in the present embodiment, the first moving part 311 includes a first moving groove 3111, a moving block 3112, a tie rod 3113, and a first spring 3114;
The first moving groove 3111 is formed in one side of the tool body 10, which is close to the gland 100, a moving block 3112 is slidably matched in the first moving groove 3111, one end of a pull rod 3113 is connected to the moving block 3112, the other end of the pull rod 3113 penetrates through the first moving groove 3111 to be connected with the gland 100, a first spring 3114 is sleeved on the outer surface of the pull rod 3113, one end of the first spring 3114 is connected with the moving block 3112, and the other end of the first spring 3114 is abutted against the side wall of the first moving groove 3111;
Specifically, referring to fig. 11 and 13, the first moving groove 3111 is provided in an arc shape, the arc angle of the first moving groove 3111 is 20 ° -30 °;
Referring to fig. 10 and 12, the first moving grooves 3111 are uniformly distributed along the circumferential direction of the tool body 10, and each of the first moving grooves 3111 is not communicated;
Referring to fig. 5, 8, 11 and 13, the moving block 3112 is in the first moving slot 3111 and can move along the axial direction of the tool body 10, and also can move along the circumferential direction of the tool body 10, when the moving block 3112 moves along the first moving slot 3111 and moves away from the side surface of the gland 100, the pull rod 3113 is in sliding fit with the tool body 10, the pull rod 3113 can extend out of the first moving slot 3111, when the gland 100 moves (i.e. moves along the axial direction of the tool body 10 or moves along the circumferential direction of the tool body 10), the moving block 3112 is driven to move synchronously by the pull rod 3113, and the other end of the first spring 3114 is abutted against the side wall of the first moving slot 3111, so that when the gland 100 stretches or retracts (i.e. the gland 100 moves along the axial direction of the tool body 10), the first spring 3114 compresses or stretches accordingly, and the gland 100 does not interfere when rotating (i.e. the gland 100 moves along the circumferential direction of the tool body 10);
the side surface of the first moving groove 3111, which is far away from the gland 100, is an arc surface with an inclination angle along the axial direction of the tool body 10;
Specifically, the side surface of the first moving groove 3111 away from the gland 100 is a line segment when being projected forward toward the axis of the tool body 10, the line segment is not perpendicular to the axial direction of the tool body 10, and has a certain inclination angle, that is, one end of the side surface of the first moving groove 3111 away from the gland 100 is close to the outer side surface 12 of the tool body 10, the other end of the side surface of the first moving groove 3111 away from the gland 100 is far from the outer side surface 12 of the tool body 10, the side surface of the moving block 3112 away from the gland 100 is matched with the side surface of the first moving groove 3111 away from the gland 100, and in this embodiment, the arc angle of the side surface of the first moving groove 3111 away from the gland 100 is 1-3 °;
Referring to fig. 8 and 16, when the gland 100 is rotated, thereby driving the moving block 3112 to slide along the side of the first moving groove 3111 away from the gland 100 by the tie rod 3113, when the moving block 3112 slides from the end close to the outer side 12 toward the end far from the outer side 12, thereby causing the elastic rubber pad (not shown) of the gland 100 to finally compress the upper portion of the front concave section 21 on the side far from the engaging section 11, the moving block 3112 is brought into abutment with the side of the first moving groove 3111 far from the gland 100 by deformation of the elastic rubber pad (not shown) of the gland 100, and at this time, the first spring 3114 is in a state of restoring deformation or still being compressed, and when the moving block 3112 slides from the end far from the outer side 12 toward the end close to the outer side 12, the elastic rubber pad (not shown) of the gland 100 is restored, so that the gland 100 returns to the pre-compressed state.
Referring to fig. 8, a side of the moving block 3112 remote from the tie rod 3113 is coupled to the first wedge block 312.
Specifically, the side of the moving block 3112 far away from the pull rod 3113 is connected to the first wedge block 312 through a connecting rod 3118, preferably, referring to fig. 8 and 11, the connecting rod 3118 is located in a communicating groove, the communicating groove is communicated with the side of the first moving groove 3111 far away from the gland 100, the communicating groove is arc-shaped, the arc angle of the communicating groove is slightly smaller than that of the first moving groove 3111, so as to match the distance between the outer wall of the connecting rod 3118 and the side of the moving block 3112, and the communicating groove can be reasonably set according to practical situations.
Referring to fig. 5, 11 and 13, in the present embodiment, the first moving part 311 further includes a sliding groove 3115 and a sliding block 3116;
The sliding groove 3115 communicates with the first moving groove 3111, the sliding block 3116 is connected to the moving block 3112, and the sliding block 3116 is slidably fitted to the sliding groove 3115 to improve stability of movement of the moving block 3112.
Specifically, the top and bottom of the first moving groove 3111 are communicated with a sliding groove 3115, the sliding groove 3115 is formed inside the tool body 10, the sliding groove 3115 is arc-shaped, the side surface of the sliding groove 3115 far away from the gland 100 is arc-shaped with an inclined angle corresponding to the arc-shaped angle of the side surface of the first moving groove 3111 far away from the gland 100, the side surface of the sliding block 3116 far away from the gland 100 is matched with the side surface of the sliding groove 3115 far away from the gland 100, the length dimension of the sliding groove 3115 along the axial direction of the tool body 10 is smaller than the length dimension of the first moving groove 3111 along the axial direction of the tool body 10, so that when the gland 100 moves along the axial direction of the tool body 10, the first moving groove 3111 has a space when the first spring 3114 is compressed, damage to the first spring 3114 is avoided, the top and bottom of the moving block 3112 is provided with a sliding block 3116, and the sliding stability of the first moving groove 3112 is improved when the gland 100 moves along the axial direction of the tool body 10 or the circumferential direction of the moving block 3115 through sliding fit of the sliding block 3116 with the sliding block 3115.
Referring to fig. 9 to 13, in the present embodiment, the clamping fixture further includes a first plug assembly 400 and a second plug assembly 500;
the first plug assembly 400 and the second plug assembly 500 correspond to one first moving assembly 310;
The first plug assembly 400 is used for limiting the position of the first moving assembly 310 when the gland 100 compresses the workpiece 20 along the axial direction of the tool body 10, so that the gland 100 is limited to move;
The second plug assembly 500 is used for limiting the position of the first moving assembly 310 when the gland 100 moves away from the workpiece 20 along the axial direction of the tool body 10, so that the gland 100 is limited to move.
Specifically, referring to fig. 5 and 11, the first moving assembly 310 is provided with 9 groups, wherein the top surface of the sliding block 3116 on the top of the moving block 3112 of one group of the first moving assembly 310 is provided with a slot 3117, that is, only the top surface of one sliding block 3116 is provided with a slot 3117, and the first inserting assembly 400 and the second inserting assembly 500 are in inserting fit through the slot 3117;
referring to fig. 5, 11 and 16, when the gland 100 is in the final compressed state, the first socket assembly 400 is in socket fit with the slot 3117 of the sliding block 3116, so as to limit the movement of the gland 100, thereby preventing the movement of the gland 100 due to external force or accident, and further preventing the movement of the moving block 3112, and further preventing the gland 100 from compressing the upper portion of the front concave section 21 on the side far from the engaging portion 11, and further preventing machining errors;
Referring to fig. 9 and 11, the first socket assembly 400 includes a first through hole 410 communicating with a sliding groove 3115, the first through hole 410 penetrates through a side surface of an outer diameter of the tool body 10, a first socket rod 420 is slidably disposed in the first through hole 410, a first pull block 430 is mounted at one end of the first socket rod 420 extending out of the tool body 10, the first through hole 410 communicates with a first guide groove 440 disposed in the tool body 10, a first guide block 450 disposed in the first guide groove 440 is mounted on the first socket rod 420, a third spring 460 sleeved on the first socket rod 420 is connected between a side wall of the first guide groove 440 and the first guide block 450, the first socket rod 420 can be in socket fit with a slot 3117 disposed on the sliding block 3116, preferably, when the pressing cover 100 presses the workpiece 20, a side of an upper portion of the sliding block 3116 disposed with the slot 3117 is also obliquely disposed (not shown), and is matched with a side of a lower portion of the first socket rod 420, so that the first socket rod 420 can be lifted up manually when the pressing the workpiece 100 presses the workpiece 3116, and the first socket rod 420 can be lifted up manually.
Referring to fig. 11 and 13, when the gland 100 moves away from the workpiece 20 along the axial direction of the tool body 10, the second plugging assembly 500 is plugged and matched with the slot 3117 of the sliding block 3116, so as to limit the sliding block 3116, thereby limiting the moving block 3112 and further limiting the movement of the gland 100, avoiding rebound of the gland 100 under the elastic action of the first spring 3114, and facilitating the disassembly or installation of the workpiece 20 by a worker;
Referring to fig. 9 and 13, the second plugging assembly 500 includes a second communication hole 510 communicating with the sliding groove 3115, the second communication hole 510 penetrates through the outer diameter side of the tool body 10, a second plugging rod 520 is slidably disposed in the second communication hole 510, a second pull block 530 is mounted at one end of the second plugging rod 520 extending out of the tool body 10, a second guide groove 540 is disposed in the tool body 10 in the second communication hole 510, a second guide block 550 is mounted on the second plugging rod 520 and located in the second guide groove 540, a fourth spring 560 sleeved on the second plugging rod 520 is connected between the side wall of the second guide groove 540 and the second guide block 550, the second plugging rod 520 can be plugged and matched with a slot 3117 disposed on one of the sliding blocks 3116, preferably, when the gland 100 moves in a direction away from the tool body 10, an upper side of the sliding block 3116 disposed with the slot 3117 is also inclined (not shown), the second plugging rod 520 is matched with a lower side of the second plugging rod 520, and the second plugging rod 3116 can be lifted up manually without lifting the second plugging rod 520.
In this embodiment, the first plunger 420 and the second plunger 520 are in plug-in fit with the slot 3117 formed on one of the sliding blocks 3116, and there are only 1 sliding blocks 3116 with slots 3117 formed therein.
Referring to fig. 4, in the present embodiment, the second moving assembly 320 includes a second moving part 321 and a second wedge block 322;
the second moving part 321 is connected with the press block 200, the second wedge-shaped block 322 is connected with the second moving part 321, and the second moving part 321 is used for limiting the movement of the press block 200 so as to enable the press block 200 to slide along the radial direction of the inner side surface 13 of the tool body 10;
Second wedge block 322 is configured to be in abutting engagement with first wedge block 312, so that press block 200 is driven to move during movement of gland 100.
Specifically, the upper side of the second wedge block 322 is obliquely arranged and is in abutting fit with the lower inclined surface of the first wedge block 312, preferably the first wedge block 312 is arranged away from the inner side surface 13, the second wedge block 322 is arranged close to the inner side surface 13, the first wedge block 312 is arranged above the second wedge block 322, and the vertical section of the second wedge block 322 is arranged in an arc shape.
Referring to fig. 4, 6, 8 and 15, in the present embodiment, the second moving part 321 includes a second moving groove 3211, a fixed plate 3212, a movable rod 3213 and a second spring 3214;
The second moving groove 3211 is communicated with the first moving groove 3111, the first wedge block 312 is located in the second moving groove 3211, a fixed plate 3212 is installed in the second moving groove 3211, a movable rod 3213 is slidably installed on the fixed plate 3212, one end of the movable rod 3213 is connected with the second wedge block 322, the other end of the movable rod 3213 penetrates through the second moving groove 3211 to be connected with the pressing block 200, and a second spring 3214 sleeved on the outer surface of the movable rod 3213 is connected between the second wedge block 322 and the fixed plate 3212.
Specifically, referring to fig. 4, 6, 8, 15 and 16, the second moving groove 3211 is divided into an upper part and a lower part, the vertical section of the upper part of the second moving groove 3211 is arc-shaped, the upper part of the second moving groove 3211 is communicated with the first moving groove 3111 through the communicating groove, the first wedge block 312 and a part of the connecting rod 3118 are located in the upper part of the second moving groove 3211, the vertical section of the lower part of the second moving groove 3211 is square-shaped, the movable rod 3213 is L-shaped, the movable rod 3213 is divided into a vertical part and a horizontal part, one end of the vertical part of the movable rod 3213 is connected with the second wedge block 322, the other end of the vertical part of the movable rod 3213 penetrates through the fixed plate 3212 and one end of the horizontal part of the movable rod 3213, the other end of the horizontal part of the movable rod 3213 penetrates through the lower part of the second moving groove 3211 and is connected with the pressing block 200, the fixed plate 3212, the movable rod 3 and the second spring 3214 are located in the lower part of the second moving groove 3211, the pressing block 200 is pressed against the concave pressing block 23, and the pressing block 23 is still in a state of the second wedge block 23 is not in contact with the second wedge block 322 or the second wedge block 3 is still in a state of elastic deformation state, and is still in contact with the second wedge block 322 is in the state with the second wedge block 322 is still in the horizontal groove 3 is in the compression state.
Referring to fig. 6, 8 and 15, in the present embodiment, a side of the first wedge block 312, which is close to the moving block 3112, is connected with a limiting rod 3121, and the second wedge block 322 is provided with a limiting groove 3221 capable of sliding matching with the limiting rod 3121;
when the stopper rod 3121 is inserted into the stopper groove 3221, the pressing block 200 is not moved inward in the radial direction of the tool body 10.
Specifically, the limiting rods 3121 are arranged in a shape of 匚', 1-2 limiting rods 3121 can be arranged on one first wedge block 312, in this embodiment, 2 limiting rods 3121 are arranged on one first wedge block 312, a limiting groove 3221 with a vertical cross section arranged in an arc shape is formed on one side of the second wedge block 322 close to the inner side surface 13, when the gland 100 moves in a direction away from the tool body 10, the first wedge block 312 is finally driven to move, so that the limiting rods 3121 move out of the limiting groove 3221, when the gland 100 moves in a direction close to the tool body 10, the first wedge block 312 is finally driven to move, so that the limiting rods 3121 re-enter the limiting groove 3221, at this moment, a gap remains between the inner side surface of the limiting groove 3221 and the limiting rods 3121, so that the limiting rods 3121 can continue to move towards the inside of the limiting groove 3221 during subsequent pressing, and when the gland 100 moves along the circumferential direction of the tool body 10, the limiting rods 3121 can slide in the limiting groove 3221.
Referring to fig. 6, 8, 15 and 16, preferably, the upper portion of one end of the limiting rod 3121, which is close to the limiting groove 3221, is inclined, and accordingly, the upper portion of the limiting groove 3221 is also inclined, so that the limiting rod 3121 can be in abutting engagement with the upper portion of the limiting groove 3221, when the gland 100 is finally pressed from the pre-pressed state, the first wedge block 312 moves in a direction away from the outer side 12, so as to drive the limiting rod 3121 to move, the limiting rod 3121 lifts the second wedge block 322 upwards through the abutting engagement of the limiting groove 3221, and the pressing block 200 is better pressed against the horizontal portion of the rear concave section 23 under the elastic action of the second spring 3214, and an elastic rubber pad (not shown) of the pressing block 200 is deformed at this time, and through the abutting engagement of the limiting rod 3121 and the limiting groove 3221, the pressing block 200 is prevented from being loose due to external force or accident, so that the pressing block 200 cannot press the horizontal portion of the rear concave section 23, thereby causing processing errors.
Working principle: when in use, when a workpiece 20 needs to be installed, the gland 100 is pulled to move towards a direction away from the tool body 10, the gland 100 drives the pull rod 3113 to move, so as to drive the moving block 3112 and the sliding block 3116 to move, and then drive the connecting rod 3118 and the first wedge block 312 to move, after the gland 100 moves for a certain distance, the gland 100 is prevented from rebound and resetting through the plug-in fit of the second plug rod 520 and the corresponding slot 3117, meanwhile, the first wedge block 312 moves, so that the limiting rod 3121 is separated from the limiting groove 3221, the first wedge block 312 drives the second wedge block 322 to move along the radial direction of the tool body 10 through the abutting fit, the second wedge block 322 drives the pressing block 200 to move inwards along the radial direction of the tool body 10 through the movable rod 3213, the 9 pressing blocks 200 are mutually close, thereby facilitating the workers to install the front concave section 21 of the workpiece 20 on the clamping part 11 of the tool body 10, the 9 workpieces 20 can be installed on the clamping part 11 of the tool body 10 at one time, then the second pull block 530 is pulled, the second pull block 530 drives the second inserting rod 520 to move upwards, so that the second inserting rod 520 moves out of the slot 3117, the gland 100 moves towards the direction close to the tool body 10, the second pull block 530 is released, the second inserting rod 520 automatically resets under the elastic force of the fourth spring 560, the upper part of the front concave section 21, which is far away from the clamping part 11, is pre-pressed by the gland 100, simultaneously, the pressing block 200 resets under the elastic force of the second spring 3214, the top surface of the rear groove 25 is pre-pressed, the limiting rod 3121 re-enters the limiting groove 3221, the gland 100 and the pressing block 200 are in a pre-pressed state, then the gland 100 is rotated along the circumferential direction of the tool body 10, so that the pull rod 3113, the moving block 3112, the sliding block 3116, the connecting rod 3118 and the first wedge 312 are driven to rotate, when the gland 100 is pressed from the pre-pressing state to the final state, the elastic rubber pad (not shown) of the gland 100 presses the upper portion of the front concave section 21 on the side far away from the clamping portion 11, meanwhile, the first wedge block 312 moves in the direction far away from the outer side 12, so as to drive the limiting rod 3121 to move, the limiting rod 3121 lifts the second wedge block 322 upwards through the tight fit of the limiting groove 3221, and under the elastic action of the second spring 3214, the elastic rubber pad (not shown) of the press block 200 better presses the horizontal portion of the rear concave section 23, so that the gland 100 and the press block 200 are in the final pressing state, thereby realizing the positioning of the workpiece 20, and when the gland 100 presses the workpiece 20, the gland 100 is locked through the plug fit of the first plug rod 420 and the corresponding slot 3117, so as to avoid the movement of the gland 100 due to external force or accidents, and thus processing errors.
When the workpiece 20 needs to be disassembled, the first pull block 430 is pulled, the first pull block 430 drives the first inserting rod 420 to move upwards, so that the first inserting rod 420 moves out of the slot 3117, then the gland 100 can be reversely rotated, so that the gland 100 returns to the pre-compression state, meanwhile, the press block 200 also returns to the pre-compression state, then the gland 100 is pulled to move towards the direction far away from the tool body 10 until the second inserting rod 520 is in plug-in fit with the corresponding slot 3117, meanwhile, the press block 200 moves towards the inner side along the radial direction of the tool body 10, and the 9 press blocks 200 are mutually close, thereby being convenient for a worker to take the workpiece 20 off the tool body 10;
According to the invention, the workpiece 20 is pre-compacted through the gland 100 and the press block 200, so that the workpiece 20 can be prevented from moving before final compaction, progressive load increase is realized through two-stage compaction (pre-compaction to final compaction), the deformation or damage risk of the precise workpiece 20 caused by instant impact load is reduced, and the workpiece 20 is not required to be compacted and fixed through screws, so that the workpiece 20 is more convenient to mount and dismount, the labor intensity of workers is reduced, and the working efficiency is improved.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention.
Claims (8)
1. A clamping frock for aeroengine turbine casing sector, its characterized in that includes:
The gland (100) is arranged on the tool body (10) and is used for clamping a workpiece (20) placed on the tool body (10) along the axial direction of the tool body (10);
The pressing block (200) is arranged on the tool body (10) and is connected with the pressing cover (100) through a linkage mechanism (300), and the pressing block (200) is used for clamping a workpiece (20) placed on the tool body (10) along the radial direction of the tool body (10);
The press cover (100) can move along the axial direction of the tool body (10), the linkage mechanism (300) enables the press block (200) to move towards the inner side along the radial direction of the tool body (10) in the process that the press cover (100) is far away from the workpiece (20), and the linkage mechanism (300) enables the press block (200) to move towards the outer side along the radial direction of the tool body (10) in the process that the press cover (100) is close to the workpiece (20), so that the press cover (100) and the press block (200) are in contact with the workpiece (20) to form a pre-compression state;
The gland (100) can also move along the circumferential direction of the tool body (10), so that the gland (100) in the pre-compression state compresses a workpiece (20) along the axial direction of the tool body (10), and the pressing block (200) in the pre-compression state compresses the workpiece (20) along the radial direction of the tool body (10);
the linkage mechanism (300) comprises a plurality of first moving assemblies (310) and a plurality of second moving assemblies (320);
The first moving assemblies (310) and the second moving assemblies (320) are arranged in the tool body (10), and the first moving assemblies (310) and the second moving assemblies (320) are uniformly distributed along the circumferential direction of the tool body (10);
the first moving assembly (310) is connected with the gland (100), the second moving assembly (320) is connected with the pressing block (200), and the first moving assembly (310) is in abutting fit with the second moving assembly (320) so as to drive the pressing block (200) to move in the moving process of the gland (100);
the first moving assembly (310) comprises a first moving part (311) and a first wedge block (312);
The first moving part (311) is connected with the gland (100), the first wedge block (312) is connected with the first moving part (311), and the first moving part (311) is used for limiting the movement of the gland (100);
The first wedge block (312) is used for being in abutting fit with the second moving assembly (320) so as to drive the pressing block (200) to move in the moving process of the pressing cover (100).
2. The clamping fixture for an aeroengine turbine casing sector according to claim 1, wherein said first moving portion (311) comprises a first moving slot (3111), a moving block (3112), a tie rod (3113) and a first spring (3114);
the first moving groove (3111) is formed in one side of the tool body (10) close to the gland (100), a moving block (3112) is slidably matched in the first moving groove (3112), one end of a pull rod (3113) is connected to the moving block (3112), the other end of the pull rod (3113) penetrates through the first moving groove (3111) to be connected with the gland (100), a first spring (3114) is sleeved on the outer surface of the pull rod (3113), one end of the first spring (3114) is connected with the moving block (3112), and the other end of the first spring (3114) is abutted to the side wall of the first moving groove (3111).
The side surface of the first moving groove (3111) far away from the gland (100) is a cambered surface with an inclination angle along the axial direction of the tool body (10);
The side of the moving block (3112) away from the pull rod (3113) is connected to the first wedge block (312).
3. Clamping fixture for an aeroengine turbine casing sector according to claim 2, wherein said first moving part (311) further comprises a sliding groove (3115) and a sliding block (3116);
The sliding groove (3115) is communicated with the first moving groove (3111), the sliding block (3116) is connected with the moving block (3112), and the sliding block (3116) is in sliding fit with the sliding groove (3115) so as to improve moving stability of the moving block (3112).
4. A clamping fixture for an aeroengine turbine casing sector according to claim 3, further comprising a first plug assembly (400) and a second plug assembly (500);
the first plug assembly (400) and the second plug assembly (500) correspond to a first moving assembly (310);
The first plug-in assembly (400) is used for limiting the position of the first moving assembly (310) when the gland (100) compresses the workpiece (20) along the axial direction of the tool body (10), so that the movement of the gland (100) is limited;
The second plug assembly (500) is used for limiting the position of the first moving assembly (310) when the gland (100) moves away from the workpiece (20) along the axial direction of the tool body (10), so that the gland (100) is limited to move.
5. The clamping fixture for an aircraft engine turbine casing sector according to claim 2, characterized in that the second moving assembly (320) comprises a second moving part (321) and a second wedge block (322);
The second moving part (321) is connected with the pressing block (200), the second wedge-shaped block (322) is connected with the second moving part (321), and the second moving part (321) is used for limiting the movement of the pressing block (200);
the second wedge block (322) is used for being in abutting fit with the first wedge block (312) so as to drive the pressing block (200) to move in the moving process of the pressing cover (100).
6. The clamping fixture for an aircraft engine turbine housing sector according to claim 5, wherein the second moving part (321) comprises a second moving slot (3211), a fixed plate (3212), a movable rod (3213) and a second spring (3214);
The second movable groove (3211) is communicated with the first movable groove (3111), the first wedge block (312) is located in the second movable groove (3211), a fixed plate (3212) is installed in the second movable groove (3211), a movable rod (3213) is slidably installed on the fixed plate (3212), one end of the movable rod (3213) is connected with the second wedge block (322), the other end of the movable rod (3213) penetrates through the second movable groove (3211) to be connected with the pressing block (200), and a second spring (3214) sleeved on the outer surface of the movable rod (3213) is connected between the second wedge block (322) and the fixed plate (3212).
7. The clamping tool for the turbine housing sector of the aeroengine according to claim 6, wherein one side of the first wedge block (312) close to the moving block (3112) is connected with a limit rod (3121), and the second wedge block (322) is provided with a limit groove (3221) which can be in sliding fit with the limit rod (3121);
When the limit rod (3121) is inserted into the limit groove (3221), the pressing block (200) is not moved towards the inner side along the radial direction of the tool body (10).
8. Clamping fixture for an aeroengine turbine casing sector according to claim 1, wherein said gland (100) and said press block (200) are simultaneously in contact with a workpiece (20) when said gland (100) and said press block (200) form a pre-compressed state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510743298.3A CN120244859B (en) | 2025-06-05 | 2025-06-05 | Clamping tool for turbine housing sector of aero-engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510743298.3A CN120244859B (en) | 2025-06-05 | 2025-06-05 | Clamping tool for turbine housing sector of aero-engine |
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| CN120244859A CN120244859A (en) | 2025-07-04 |
| CN120244859B true CN120244859B (en) | 2025-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202510743298.3A Active CN120244859B (en) | 2025-06-05 | 2025-06-05 | Clamping tool for turbine housing sector of aero-engine |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2673139A1 (en) * | 2008-10-24 | 2010-04-24 | Pratt & Whitney Canada Corp. | Diffuser case removal apparatus and method |
| CN120057276A (en) * | 2025-04-28 | 2025-05-30 | 四川欧航科技有限责任公司 | Automatic parachute falling mechanism and aircraft |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE484652T1 (en) * | 2005-04-28 | 2010-10-15 | Siemens Ag | METHOD AND DEVICE FOR ADJUSTING A RADIAL GAP OF AN AXIAL FLOW COMPRESSOR OF A FLOW MACHINE |
| DE102005062303A1 (en) * | 2005-12-24 | 2007-06-28 | Rolls-Royce Deutschland Ltd & Co Kg | Method and arrangement for finishing gas turbine engine blades cast from a brittle material |
| CN221809295U (en) * | 2024-04-17 | 2024-10-08 | 常州市圣瑞特实业有限公司 | Internal support positioning tool for turbocharger housing processing |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2673139A1 (en) * | 2008-10-24 | 2010-04-24 | Pratt & Whitney Canada Corp. | Diffuser case removal apparatus and method |
| CN120057276A (en) * | 2025-04-28 | 2025-05-30 | 四川欧航科技有限责任公司 | Automatic parachute falling mechanism and aircraft |
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| CN120244859A (en) | 2025-07-04 |
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