CN114378246B

CN114378246B - Double-sided riveting tool

Info

Publication number: CN114378246B
Application number: CN202111392123.0A
Authority: CN
Inventors: 解思状; 李晨; 王子龙; 邱辉鹏
Original assignee: Shaanxi Fast Gear Co Ltd
Current assignee: Shaanxi Fast Gear Co Ltd
Priority date: 2021-11-19
Filing date: 2021-11-19
Publication date: 2024-09-13
Anticipated expiration: 2041-11-19
Also published as: CN114378246A

Abstract

The invention discloses a double-sided riveting tool, which comprises a lower base and a tool main body; the support frame main body is arranged in the lower base and is rigidly connected with the flange plate; the adjusting screw is run through at the top of support frame main part, adjusting screw's lower part sets up positioner, the bottom terminal surface of support frame is provided with the location logical groove that corresponds with positioner, can fix a position the position of riveting, guarantee the accuracy of riveting, support frame main part's upper end sets up stop device, stop device runs through support frame main part's up end and upper arm adjusting screw's upper portion in proper order and sets up the upper arm, the both ends of upper arm set up the pull rod respectively, the one end that the upper arm was kept away from to the pull rod sets up the riveting head, adjusting screw can drive positioner and riveting head synchronous motion, realize location and riveting in proper order, current flange nut riveting process has not had the problem of suitable frock.

Description

Double-sided riveting tool

Technical Field

The invention belongs to the technical field of tools, and relates to a double-sided riveting tool.

Background

The flange plate is a power output part positioned at the tail end of the output shaft of the gearbox, and is connected with the output shaft by adopting a spline to output rotating speed and torque. Currently, the axial positioning mode of the output flange of a gearbox in the market mainly adopts two modes, wherein the first mode is to axially compress the output flange by adopting a pressure plate, in the method, the pressure plate is connected with an output shaft by adopting a double-bolt connection mode, so that the output flange is compressed by utilizing the pressure plate in the axial direction, and the locking mode of bolts is iron wire locking, as shown in figure 1; the second way is to axially compress the output flange by using a flange nut. In the method, the flange nut is directly connected with the output shaft by adopting threads, the flange nut simultaneously realizes the functions of the pressure plate and the bolt in the first mode, the anti-loosening mode adopts riveting or riveting to prevent loosening, and the deformed part of the flange nut is embedded into the notch on the output shaft by riveting or riveting deformation of the flange nut, so that the aim of preventing the flange nut from rotating is fulfilled, as shown in figure 2.

In the prior art, a flange nut type gearbox is adopted to fix a flange plate, and the edge of the flange nut is required to be deformed so as to realize looseness prevention. In the workshop assembly process, because no suitable tooling and special assembly equipment are available, the actual site is generally manually riveted and punched, and the method mainly comprises the following two modes: the first is that a worker butts a iron chisel against the flange nut edge by hand, then the iron chisel is hammered by an iron rod to rivet the nut edge, and the second is that the worker uses a riveter to rivet the flange nut edge. From a brief description of the operation process, it is known that:

the first manual approach has the following drawbacks and risks: the method has the advantages of large physical consumption, hand breaking of iron bars, excessive riveting force to damage the edge of the nut (edge cracking and replacement are needed), too small riveting force and insufficient deformation, easy slipping of an arc-shaped edge chisel, easy deviation of riveting points from the optimal setting position, inconsistent riveting quality of nuts with flanges of different gearboxes, low efficiency and the like.

The second manual approach has the following drawbacks and risks: the riveting force and angle are difficult to control, the arc edge is easy to slip, the riveting point deviates from the optimal setting position, the riveting quality of the flange nut of the gearbox is inconsistent, only one position can be riveted at a time, the efficiency is low, and the like. In view of the above, it is very desirable to design a tool that can ensure operation safety, product qualification and product consistency.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a double-side riveting tool.

In order to achieve the purpose, the invention is realized by adopting the following technical scheme:

A double-sided riveting tool comprises a lower base and a tool main body;

the support frame main body is arranged in the lower base and is rigidly connected with the lower base;

the top of the support frame main body penetrates through the adjusting screw, the lower part of the adjusting screw is provided with a positioning device, and the bottom end surface of the support frame is provided with a positioning through groove corresponding to the positioning device;

The upper portion of adjusting screw sets up the upper arm, and the both ends of upper arm set up the pull rod respectively, and the one end that the pull rod kept away from the upper arm sets up the riveting head, riveting head one side is connected with the pull rod, and the opposite side is articulated with the frock main part.

The invention further improves that:

The tool main body comprises a supporting frame and an upper base; the lower extreme and the last base rigid connection of support frame, location logical groove symmetry sets up on the terminal surface of last base, the riveting head is articulated with last base, it is connected with lower base to go up the base.

One side of the riveting head is hinged with the pull rod, and the other side of the riveting head is hinged with the outer side wall of the upper base.

The adjusting screw comprises a screw rod, a spring and a middle pull rod;

the upper arm is provided with a clamping groove inner hole, and the spring is arranged in the clamping groove inner hole;

the lower part of the screw rod penetrates through the upper end face of the supporting frame and is embedded into the spring, the upper part of the screw rod is connected with the supporting frame, the upper part of the middle pull rod is embedded into the spring, the middle pull rod is movably connected with the edge of the inner hole of the clamping groove, and the middle pull rod is provided with a positioning device.

The positioning device comprises a connecting rod and a positioning claw;

The connecting rod is connected with the middle pull rod, the positioning claw is arranged at one end of the connecting rod, and the positioning claw can be inserted into the positioning through groove.

Limiting guide rods are symmetrically arranged on two sides of the screw rod, and penetrate through the supporting frame and the upper arm in sequence.

And an adjusting washer is sleeved on the outer side of the limiting guide rod.

The inner side of the lower base is provided with a main body positioning device, the main body positioning device is sleeved on the outer side of the upper base, the lower end face of the main body positioning device abuts against the upper end face of the upper base, and the outer side wall of the main body positioning device is connected with the inner side arm of the lower base.

The main body positioning device comprises a clamping ring and a pressure plate, and the inner side arm of the lower base is provided with a clamping groove;

the clamping ring is arranged at the upper end of the pressure plate, one part of the clamping ring is embedded in the clamping groove, and the other part of the clamping ring is propped against the upper end face of the pressure plate;

The pressure plate is sleeved on the outer side of the upper base, and the lower end face of the pressure plate is propped against the upper end face of the upper base; and a friction material is also arranged on the connecting surface of the pressure plate and the upper base.

The outer periphery of frock main part sets up a plurality of spacing buckle.

Compared with the prior art, the invention has the following beneficial effects:

The invention discloses a double-side riveting tool, which is characterized in that an adjusting screw rod penetrates through a main body device, a positioning device is arranged on the adjusting screw rod, the riveting position can be positioned, the accuracy of riveting is ensured, a riveting head is also arranged, the riveting head is connected with the adjusting screw rod through a pull rod and an upper arm, the adjusting screw rod can drive the positioning device and the riveting head to synchronously move, positioning and riveting are sequentially realized, the arc-shaped edge is not easy to slip, the optimal position of the riveting is rapidly positioned, the problem that the riveting process of the current flange nut is not suitable is solved, double-side riveting can be realized at the same time, the riveting efficiency is improved, the conversion of a technological method from riveting to riveting is realized, the probability of unqualified products is reduced, and the quality and consistency of products are improved; the tool disclosed by the invention realizes the conversion from manual impact to tool operation, reduces the safety risk of personnel and improves the convenience of procedure operation.

Furthermore, the adhesive material is arranged on the end surface of the pressing plate, which is abutted against the upper base, so that the influence of the circumferential sliding of the base on the riveting precision can be prevented when the axial force is applied to generate a larger friction force in the riveting process.

Drawings

For a clearer description of the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a prior art platen fixing method;

FIG. 2 is a prior art flange nut securing method;

FIG. 3 is a front view of the present invention;

FIG. 4 is a schematic diagram of the structure of the present invention;

FIG. 5 is a first partial block diagram of the present invention;

FIG. 6 is a perspective view of the present invention;

FIG. 7 is a left side view of the present invention;

FIG. 8 is a second partial block diagram of the present invention;

FIG. 9 is a third partial block diagram of the present invention;

FIG. 10 is a bottom view of the present invention;

FIG. 11 is a top view of the present invention;

FIG. 12 is a schematic illustration of the riveting locations of the present invention;

FIG. 13 is a schematic illustration of the rivet head connection of the present invention.

Wherein, 1-screw; 2-an upper cover plate; 3-rivets; 4-limiting guide rods; 5-supporting frames; 6-adjusting the gasket; 7-a spring; 8-upper arm; 9-a middle pull rod; 10-positioning claws; 11-connecting rod; 12-a pull rod; 13-upper base; 14-riveting heads; 15-limiting buckles; 16-snap ring; 17-pressing plate; 18-a lower base; 19-friction material; 20-riveting position; 21-a flange plate; 22-an output shaft; 23-flange nut.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "upper," "lower," "horizontal," "inner," and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the term "horizontal" if present does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 2-7, the embodiment of the invention discloses a double-sided riveting tool, and particularly discloses a tool for flange nut riveting, wherein the lower end of a support frame 5 is connected with an upper base 13 and welded with the upper base 13, the support frame 5 and the upper base 13 are positioned in a lower base, a screw 1 is arranged on the upper end surface of the support frame 5, the screw 1 penetrates through the upper end surface of the support frame 5, the lower part of the screw 1 penetrates through an upper arm 8, a clamping groove inner hole is formed in the upper arm 8, a spring 7 is arranged in the clamping groove inner hole, the lower part of the screw 1 is positioned in the spring 7, the upper part of a middle pull rod 9 is positioned in the spring 7, two sides of the middle pull rod 9 are provided with limiting bodies, the limiting bodies are matched with the edges of the clamping groove inner hole to limit the middle pull rod 9, two groups of connecting rods 11 are arranged on the middle pull rod 9, one end of each connecting rod 11 is connected with a positioning claw 10, and the positioning claw 10 can be embedded in a positioning groove formed in the upper base 13.

The screw rod 1 is fixedly connected with the supporting frame 5 through the upper cover plate 2 and the rivet 3, two sides of the screw rod 1 are provided with limiting guide rods 4, the limiting guide rods 4 penetrate through the supporting frame 5 and the upper arm 8, and the outer side of the joint of the limiting guide rods 4 and the upper arm 8 is sleeved with an adjusting washer 6.

Wherein the two ends of the upper arm 8 are symmetrically connected with the pull rod 12, the tail end of the pull rod 12 is connected with the riveting head 14, one side of the riveting head 14 is hinged with the pull rod 12, and the other side is hinged with the side wall of the upper base 13.

Referring to fig. 9, the limiting buckle is circumferentially arranged at the edge of the lower base 18, the clamping point side of the limiting buckle 15 is of a thin-wall structure, like a thin-plate spring, the extending position can be manually utilized to easily dial upwards, the position of the limiting buckle 15 is conveniently changed, but no external force acts on the limiting buckle to restore to the original position, and the limiting buckle has a limiting function.

Referring to fig. 10, in this embodiment, the bottom through hole of the lower base 18 is hexagonal, which can correspond to the outer contour of the flange nut, and is convenient for positioning during installation.

The working principle of the invention is as follows:

referring to fig. 1-13, the tooling is installed by first mating the hexagonal hole of the lower base 18 with the hexagonal profile of the flange nut 23;

At this time, the edge of the lower base 18 coincides with the partial edge of the flange, and the limiting buckle 15 positioned at the circular arc edge of the flange is pushed from the outer clamping point to the inner clamping point, as shown in fig. 9 (fig. 9 is the inner clamping point), so as to limit the axial direction of the tool;

The screw 1 is rotated anticlockwise by a driving device (such as a pneumatic tool) to enable the upper arm 8 to move downwards until the inner hole of the clamping groove of the upper arm 8 is pressed to the spring 7, and the positioning claw 10 passes through the hole on the upper base 13 to abut against the surface of the output shaft 22 due to the transmission effect of the middle pull rod 9 and the connecting rod 11.

The upper base 13 is rotated by the support bracket 5 until the end of the positioning pawl 10 slides into the hole in the staking location 20 as shown in fig. 12.

The screw 1 is rotated clockwise to enable the upper arm 8 to move upwards, at the moment, the riveting head 14 starts to rotate due to the transmission effect of the pull rod 12, after a certain distance of movement, the inner hook at the lower part of the upper arm 8 starts to pull the middle pull rod 9 to move upwards, so that the connecting rod 11 is driven to move, the positioning claw 10 which completes the positioning effect leaves a hole site, and due to the adoption of a parallelogram structure, the positioning claw 10 moves along an arc line to give up a working space for the riveting head 14 in advance;

Referring to fig. 13, the screw 1 continues to be rotated, so that the upper arm 8 continues to move upwards, at this time, the side, connected to the pull rod 12, of the riveting head 14 moves upwards, the side, connected to the upper base 13, of the riveting head 14 is fixed, the riveting head 14 continues to rotate with the side, connected to the upper base 13, of the riveting head 14 being used as an axis under the tensile force of the upper arm 8, and under the action of force, the riveting heads 4 at the two ends gradually apply pressure to the inner side of the flange nut 23, so that the flange nut 23 deforms. When the adjusting washer 6 contacts the supporting frame 5, the riveting is finished.

Wherein the adjusting washer 6 is used for adjusting the riveting stroke. In the riveting process, due to the friction material of the pressure plate 17, the upper base 13 cannot generate circumferential rotation, and due to the effect and structural relation of the limiting buckle 15, the upper base 13 cannot generate axial movement, in addition, the clamping ring 16 is arranged at the upper end of the pressure plate 17, and the clamping ring 16 is used for axially limiting and fixing the pressure plate 17 and preventing the pressure plate 17 from moving.

The screw 1 is rotated anticlockwise by a tool, so that the riveting head 14 is rotated clockwise, and the structure is unloaded;

and moving the limiting buckle 15 to an outer clamping point, disassembling the tool, and completing the operation.

In order to convert the original riveting punch into riveting, the riveting head 14 is arranged in the mechanism and driven by the pull rod 12 to gradually rivet.

To position the riveting position 20, a positioning claw 10 is provided.

The final power sources of the positioning claw 10 and the riveting head 14 are from the screw rod 1 driven by an external power device, the positioning claw 10 and the screw rod 1 synchronously move, and the positioning claw 10 gives way for the riveting head 14 to finish riveting.

In order to prevent circumferential sliding in the riveting process, the friction material 19 is adhered to the pressure plate 17, and in the riveting process, a large friction force is generated due to the action of axial force, so that the circumferential sliding of the base is prevented from affecting the riveting precision.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The double-sided riveting tool is characterized by comprising a lower base (18) and a tool main body;

The tool main body is arranged in the lower base (18) and is rigidly connected with the lower base (18);

The top of the tool main body penetrates through the adjusting screw, a positioning device is arranged at the lower part of the adjusting screw, and a positioning through groove corresponding to the positioning device is formed in the end face of the bottom of the tool main body;

The upper part of the adjusting screw is provided with an upper arm (8), two ends of the upper arm (8) are respectively provided with a pull rod (12), one end of the pull rod (12) far away from the upper arm (8) is provided with a riveting head (14), one side of the riveting head (14) is connected with the pull rod (12), and the other side of the riveting head is hinged with the tool main body;

the tool main body comprises a supporting frame (5) and an upper base (13); the lower end of the supporting frame (5) is rigidly connected with the upper base (13), the positioning through grooves are symmetrically arranged on the end face of the upper base (13), the riveting head (14) is hinged with the upper base (13), and the upper base (13) is connected with the lower base (18);

One side of the riveting head (14) is hinged with the pull rod (12), and the other side of the riveting head is hinged with the outer side wall of the upper base (13);

The adjusting screw comprises a screw rod (1), a spring (7) and a middle pull rod (9);

the upper arm (8) is provided with a clamping groove inner hole, and the spring (7) is arranged in the clamping groove inner hole;

The lower part of the screw rod (1) penetrates through the upper end face of the supporting frame (5) and is embedded into the spring (7), the upper part of the screw rod (1) is connected with the supporting frame (5), the upper part of the middle pull rod (9) is embedded into the spring (7), the middle pull rod (9) is movably connected with the edge of the inner hole of the clamping groove, and the middle pull rod (9) is provided with a positioning device;

the positioning device comprises a connecting rod (11) and a positioning claw (10);

The connecting rod (11) is connected with the middle pull rod (9), the positioning claw (10) is arranged at one end of the connecting rod (11), and the positioning claw (10) can be inserted into the positioning through groove;

The inner side of the lower base (18) is provided with a main body positioning device, the main body positioning device is sleeved outside the upper base (13), the lower end face of the main body positioning device is propped against the upper end face of the upper base (13), and the outer side wall of the main body positioning device is connected with the inner side arm of the lower base (18);

the main body positioning device comprises a clamping ring (16) and a pressure plate (17), and a clamping groove is formed in an inner side arm of the lower base (18);

The clamping ring (16) is arranged at the upper end of the pressure plate (17), one part of the clamping ring (16) is embedded in the clamping groove, and the other part of the clamping ring is propped against the upper end face of the pressure plate (17);

The pressure plate (17) is sleeved on the outer side of the upper base (13), and the lower end face of the pressure plate (17) is propped against the upper end face of the upper base (13); friction materials are further arranged on the connecting surface of the pressure plate (17) and the upper base (13).

2. The double-sided riveting tool as claimed in claim 1, wherein limiting guide rods (4) are symmetrically arranged on two sides of the screw (1), and the limiting guide rods (4) sequentially penetrate through the supporting frame (5) and the upper arm (8).

3. The double-sided riveting tool as claimed in claim 2, wherein the outer side of the limit guide rod (4) is sleeved with an adjusting washer (6).

4. A double-sided riveting tooling according to any one of claims 1-3, wherein the outer periphery of the tooling body is provided with a plurality of limit buckles (15).