CN116652505A - Rear axle housing dotting tool - Google Patents

Abstract

The invention provides a rear axle housing point fixing tool, which belongs to the technical field of rear axle housing production, and includes a frame on which a lifting platform is arranged, which is used for positioning the axle housing workpiece and adjusting the height of the axle housing workpiece through lifting , defining the axial extension direction of the axle housing workpiece as the left and right directions; two clamping mechanisms, the two clamping mechanisms are respectively installed at the left and right ends of the lifting table, and are used to clamp the axle tube flanges at both ends of the axle housing workpiece, so The clamping mechanism has a translation structure, and the translation structure drives the shaft tube flange to move to the axle housing workpiece for matching, so as to fix the welding point; the invention can quickly and accurately align the shaft tube flange by setting the clamping mechanism and the auxiliary part positioning mechanism. And other auxiliary parts for positioning and fixing, no matter whether manual or welding robot is used, the positioning of each part can be quickly completed, which greatly improves the processing efficiency and the positioning quality of the workpiece. During welding, the gap between the workpieces of the transfer axle housing can be used to complete the pre-installation of auxiliary parts in advance to avoid wasting time.

Description

Rear axle housing point fixing tooling

technical field

The invention relates to the technical field of rear axle housing production, in particular to a rear axle housing point fixing tool.

Background technique

The automobile rear axle housing assembly is the basic part for installing the main reducer, differential, half shaft, wheel hub and suspension. Its main function is to support and protect the main reducer, differential and half shaft and other components. The rear axle housing assembly needs to have sufficient strength and rigidity to ensure the normal driving of the car. In the production process of the rear axle housing assembly, the welding quality is the key to determine the quality of the rear axle housing assembly, and the welding quality of the ring seam between the axle sleeve and the axle housing is particularly critical.

There are relatively many parts on the rear axle housing, such as the spring seat and other auxiliary parts, which need to be welded and fixed on the rear axle housing. Cooperative work is required, and secondly, positioning is required before welding, which takes a long time, which leads to a longer processing cycle of the rear axle housing and lower processing efficiency.

The utility model patent with the authorized notification number CN211728051U discloses a welding fixture for the rear axle of an automobile. At present, there have been welding jigs on the market specifically for welding rear axles of automobiles, which are welded by welding robots after clamping. One fixture is needed to weld the rest of the accessories. Some accessories need to be welded by rotating the rear axle of the car by 45° and keeping it at 45°. Complete the welding of all parts on a rear axle, which not only increases the cost but also occupies too much area of the welding fixture, which is not conducive to reducing production costs and improving welding efficiency."

In view of the above problems, this solution clamps the two ends of the rear axle through the clamping mechanism. The first rotating device drives the mounting frame to rotate along the column. The rotating angle can be controlled as required. The second rotating device drives the mounting plate to rotate along the second rotating device. At this time, the mounting plate rotates along the radial direction of the base. When rotating, the external welding robot can weld the parts on the rear axle housing. After welding, the clamping mechanism Rotate the rear axle axially, and the rotation range is also between 0-360°, and continue to weld the other side of the rear axle, (for example, turn over 180° to weld the rear cover after welding the front cover) by using this welding fixture. Only one welding fixture and a welding robot matched with the welding fixture can weld any parts on the rear axle of the car, which improves the welding efficiency and reduces the production cost of the enterprise.

Although the solution disclosed in this publication improves the convenience of welding by rotating, it does not solve the problem of inconvenient welding of some accessories. Even if the welding surface is rotated to the upper side by rotating, the accessories still need positioning, fixed. The picking, positioning, and fixing of auxiliary parts are completed by the mechanical arm, and the welding robot is used for welding. The cost is relatively high, and different auxiliary parts have different structures and irregular shapes. It may be necessary to increase the mechanical arm, resulting in an increase in input costs.

Contents of the invention

The invention provides a rear axle housing spot fixing tool to solve the technical problem of inconvenient welding of auxiliary parts on the rear axle housing in the prior art.

In order to solve the above problems, the rear axle housing point fixing tool provided by the present invention adopts the following technical scheme: it includes a frame, and the frame is provided with a lifting table, which is used to position the axle housing workpiece and adjust the height of the axle housing workpiece by lifting , defining the axial extension direction of the axle housing workpiece as the left-right direction;

Two clamping mechanisms, the two clamping mechanisms are respectively installed at the left and right ends of the lifting table, and are used to clamp the shaft tube flanges at both ends of the axle housing workpiece. The clamping mechanism has a translation structure, and the translation structure drives the shaft tube method The blue moves to the axle housing workpiece to fit in order to determine the welding point;

Several auxiliary parts positioning mechanisms, the auxiliary parts positioning mechanism is installed on the front and rear sides of the frame, the auxiliary parts positioning mechanism is used to clamp the auxiliary parts to be welded, when welding, the auxiliary parts positioning mechanism drives the auxiliary parts to move to the surface of the axle housing workpiece Fits snugly and stays in place for welding jobs.

As a further improvement, the lifting platform includes a hydraulic cylinder installed on the frame for controlling lifting, above the hydraulic cylinder is provided with a guide seat installed on the frame, and the guide seat is slidably equipped with a support for the axle housing workpiece, The positioning platform for positioning, the hydraulic cylinder is connected with the positioning platform, and the positioning platform is driven up and down by the hydraulic cylinder to adjust the height of the axle housing workpiece.

As a further improvement, a positioning structure is detachably connected to the upper surface of the positioning platform for positioning the axle housing workpiece, and the positioning structure is also provided with a protective pad to prevent the axle housing workpiece from being damaged.

As a further improvement, the left and right sides of the lifting platform are respectively provided with load-bearing frames for bearing the axle housing workpiece, so as to prevent the hydraulic cylinder from being damaged due to excessive pressure on the lifting platform when the axle housing workpiece is placed.

As a further improvement, the clamping mechanism includes a clamping frame installed on the frame, a translation structure is installed on the clamping frame, and a clamping structure for clamping the shaft tube flange is connected to the output shaft of the translation structure, During welding, the translational structure drives the clamping structure to move, so that the shaft tube flange and the axle housing workpiece are matched.

As a further improvement, the clamping structure includes a clamping installation frame connected to the translation structure, and the clamping jaws for clamping the flange of the shaft tube are hinged on the clamping installation frame. A clamping cylinder is also hinged, and the clamping cylinder is hinged with the clamping jaws, so that when the clamping cylinder is extended, the clamping jaws clamp the shaft tube flange, and when the clamping cylinder shrinks, the clamping jaws Unclamp.

As a further improvement, the auxiliary part positioning mechanism includes a positioning frame detachably connected to the frame, a displacement cylinder for driving the auxiliary part is installed on the top of the positioning frame, and a clamping structure is connected to the output shaft of the displacement cylinder.

As a further improvement, the clamping structure includes a positioning mounting frame, on which positioning jaws for clamping auxiliary parts are hinged, and a clamping cylinder is also hinged on the positioning mounting frame, and the clamping cylinder is connected to the The positioning jaws are hinged so that when the clamping cylinder is extended, the positioning jaws clamp the auxiliary parts, and when the clamping cylinder shrinks, the positioning jaws release the clamping.

As a further improvement, the positioning mounting frame is also provided with positioning protrusions for positioning the auxiliary parts.

As a further improvement, the output shaft of the displacement cylinder is also connected with extension rods arranged along the left and right directions, and several clamping structures are provided on the extension rods so as to weld multiple auxiliary parts at the same time.

The beneficial effects of above-mentioned technical scheme of the present invention are as follows:

1. By setting the clamping mechanism and the auxiliary parts positioning mechanism, the shaft tube flange and other auxiliary parts can be quickly and accurately positioned and fixed. Whether it is manual or welding robot, the positioning of each part can be quickly completed. , greatly improving the processing efficiency and the quality of the workpiece. During welding, the gap between the workpieces of the transfer axle housing can be used to complete the pre-installation of auxiliary parts in advance to avoid wasting time.

2. There are load-bearing frames on the left and right sides of the lifting platform, which can prevent the hydraulic cylinder from being damaged due to the excessive instantaneous pressure when the axle housing workpiece is placed, and improve the service life of the hydraulic cylinder.

Description of drawings

The above and other objects, features and advantages of exemplary embodiments of the present invention will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of illustration and not limitation, and the same or corresponding reference numerals indicate the same or corresponding parts, wherein:

Fig. 1 is the front view structure schematic diagram of rear axle housing point fixing frock of the present invention;

Fig. 2 is the side view structural representation of rear axle housing point fixed tooling of the present invention;

Fig. 3 is a schematic structural view of the clamping mechanism of the rear axle housing point fixing tool of the present invention;

Fig. 4 is the schematic structural view of the accessory positioning mechanism of the rear axle housing point fixing tool of the present invention;

Fig. 5 is a structural schematic diagram of the lifting platform of the rear axle housing point fixing tool of the present invention.

Explanation of reference signs:

1. Rack; 2. Clamping mechanism; 21. Clamping frame; 22. Translating structure; 23. Clamping installation frame; 24. Clamping cylinder; 25. Clamping claws; 3. Shaft tube flange; 4. , Auxiliary parts positioning mechanism; 41, Positioning frame; 42, Clamping cylinder; 43, Positioning jaw; 44, Displacement cylinder; 45, Positioning installation frame; 71, hydraulic cylinder; 72, guide seat; 73, positioning platform.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, not all the embodiment. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

In the prior art, there are relatively many parts on the rear axle housing, such as spring seats and other auxiliary parts, which need to be welded and fixed on the rear axle housing. Such parts need to work together, and secondly, positioning is required before welding, which takes a long time, which leads to a long processing cycle of the rear axle housing and low processing efficiency. In view of the above problems, the present invention designs a clamping mechanism and an auxiliary part positioning mechanism, which can complete the positioning and fixing of the parts to be welded, facilitate the subsequent pointing operation, and effectively improve the processing efficiency and pointing quality.

During the pointing operation, install the auxiliary parts such as the shaft tube flange on the corresponding clamping mechanism and auxiliary part positioning mechanism in advance, and then place the axle housing workpiece on the lifting platform. The load-bearing frames on both sides of the lifting platform play a load-bearing role, which can Avoid excessive instantaneous pressure when placing the axle housing workpiece, which will cause damage to the hydraulic cylinder. There is a positioning structure on the lifting platform, and a V-shaped groove on the load-bearing frame. The cooperation of the two can ensure the accurate positioning of the axle housing workpiece and prevent the axle housing workpiece from shifting. Afterwards, the clamping mechanism drives the shaft tube flange to move to match the two ends of the axle housing workpiece, the auxiliary part positioning mechanism drives the auxiliary part to move to fit the surface of the axle housing workpiece, and both the clamping mechanism and the auxiliary part positioning mechanism move to the working position Keep it fixed, and finally the axle housing workpiece can be welded manually or by a welding robot.

After introducing the basic principles of the present invention, various non-limiting embodiments of the present invention are described in detail below. Any number of elements in the drawings is for illustration rather than limitation, and any designation is for distinction only and has no limiting meaning.

The principle and spirit of the present invention will be explained in detail below with reference to several representative embodiments of the present invention.

Embodiment 1 of the rear axle housing point fixing tool provided by the present invention:

As shown in Figures 1 to 5, including a frame 1, a lifting platform 7 is installed in the middle of the frame 1, and the lifting platform 7 is used to position the axle housing workpiece 5, and adjust the height of the axle housing workpiece 5 by lifting, defining The axial extension direction of the axle housing workpiece 5 is the left-right direction.

As shown in Figure 5, the lifting table 7 includes a hydraulic cylinder 71 installed on the frame 1 for controlling lifting, a guide seat 72 installed on the frame 1 is provided above the hydraulic cylinder 71, and a guide seat 72 is slidably mounted on the guide seat 72. The positioning platform 73 supporting and positioning the axle housing workpiece 5 is connected with the hydraulic cylinder 71 to the positioning platform 73 , and the positioning platform 73 is driven up and down by the hydraulic cylinder 71 to adjust the height of the axle housing workpiece 5 . Due to the differences in the shaft tube diameters of different types of axle housing workpieces 5, the axis height of the axle housing workpiece 5 can be adjusted by adjusting the height of the axle housing workpiece 5, so as to better cooperate with other mechanisms of the device.

The upper surface of the positioning platform 73 is detachably connected with a positioning structure, so as to position the axle housing workpiece 5, and the positioning structure is fixed on the positioning platform 73 by bolts, so that when replacing the axle housing workpiece 5 of different types, the corresponding positioning can be adjusted and replaced. The structure positions the axle housing workpiece 5, and the positioning structure is also provided with a protective pad to prevent damage to the axle housing workpiece 5. In this embodiment, the protective pad is a rubber pad to prevent the axle housing workpiece 5 from colliding with the positioning structure.

The left and right sides of the lifting platform 7 are respectively provided with load-bearing frames 6 for bearing the weight of the axle housing workpiece 5, so as to prevent the hydraulic cylinder 71 from being damaged due to excessive pressure on the lifting platform 7 when the axle housing workpiece 5 is placed. The load-bearing frame 6 includes a base at the bottom and a support frame installed on the base. The base is fixed on the frame 1, and the support frame is fixed on the base by bolts. When the axle housing workpiece 5 is adjusted and replaced, the support frame corresponding to the height will be more slippery. That's it. A V-shaped groove is also provided on the support frame, and the V-shaped groove is used for positioning and supporting the axle housing workpiece 5 to prevent the axle housing workpiece 5 from shifting.

As shown in Figure 1 and Figure 3, the left and right ends of the frame 1 are respectively equipped with clamping mechanisms 2, and the two clamping mechanisms 2 are used to clamp the shaft tube flanges 3 at both ends of the axle housing workpiece 5, and the clamping mechanisms 2 has a translation structure 22, the translation structure 22 drives the shaft tube flange 3 to move to the axle housing workpiece 5 to cooperate with, so as to fix the welding point;

The clamping mechanism 2 includes a clamping frame 21 installed on the frame 1, and a translation structure 22 is installed on the clamping frame 21. In the present embodiment, the translation structure 22 is a translation cylinder, and the output shaft of the translation cylinder is connected with a The clamping structure for clamping the shaft tube flange 3, during welding, the translation cylinder drives the clamping structure to move, so that the shaft tube flange 3 and the axle housing workpiece 5 cooperate.

The clamping structure includes a clamping installation frame 23 connected with the translation structure 22, and the clamping jaw 25 for clamping the shaft tube flange 3 is hinged on the clamping installation frame 23. In this embodiment, the clamping jaw 25 is set There are two clamping cylinders 24 that are hinged on the clamping mount 23, and the clamping cylinders 24 and clamping jaws 25 are hinged so that when the clamping cylinder 24 is elongated, the clamping jaws 25 clamp the shaft tube method Lan 3, when the clamping cylinder 24 is shrinking, the clamping jaws 25 are released from clamping.

As shown in Fig. 1, Fig. 2 and Fig. 4, four auxiliary part positioning mechanisms 4 are also provided on the front and rear sides of the frame 1, and the auxiliary part positioning mechanisms 4 are used to clamp the auxiliary parts to be welded. The positioning mechanism 4 drives the auxiliary part to move to the surface of the axle housing workpiece 5 and keep it fixed for welding operation.

As shown in Figure 4, the auxiliary part positioning mechanism 4 includes a positioning frame 41 detachably connected to the frame 1. A displacement cylinder 44 for driving the auxiliary part is installed on the top of the positioning frame 41. The inclination angle of the displacement cylinder 44 can be adjusted according to the auxiliary The position adjustment of parts, the output shaft of displacement cylinder 44 is connected with clamping structure.

The clamping structure includes a positioning mounting frame 45, on which a positioning jaw 43 for clamping auxiliary parts is hinged, and a clamping cylinder 42 is also hinged on the positioning mounting frame 45, and the clamping cylinder 42 is hinged to the positioning jaw 43 , so that when the clamping cylinder 42 is extended, the positioning jaw 43 clamps the auxiliary part, and when the clamping cylinder 42 shrinks, the positioning jaw 43 releases the clamping. In this embodiment, the auxiliary part is provided with a connecting hole, so a positioning protrusion is provided on the positioning installation frame 45, and the positioning protrusion cooperates with the connecting hole so as to position the auxiliary part.

Embodiment 2 of the rear axle housing point fixing tooling provided by the present invention:

Its difference with embodiment 1 mainly lies in:

In Embodiment 1, the left and right sides of the lifting platform are respectively provided with load-bearing frames for bearing the weight of the axle housing workpiece, so as to prevent the hydraulic cylinder from being damaged due to excessive pressure on the lifting platform when the axle housing workpiece is placed. The load-bearing frame includes a base at the bottom and a support frame installed on the base. The base is fixed on the frame, and the support frame is fixed on the base by bolts. When the axle housing workpiece is adjusted and replaced, just slide the support frame corresponding to the height. A V-shaped groove is also provided on the support frame, and the V-shaped groove is used for positioning and supporting the axle housing workpiece to prevent the axle housing workpiece from shifting.

In this embodiment, a locking bolt is installed on the base, and the support frame is provided with a rectangular adjustment hole. When adjusting the position of the support frame, the locking bolt is loosened, and the locking bolt is fixed again after adjusting the position of the support frame. Replace the support frame with the corresponding height.

Embodiment 3 of the rear axle housing point fixing tool provided by the present invention:

Its difference with embodiment 1 mainly lies in:

In this embodiment, the output shaft of the displacement cylinder is also connected with extension rods arranged along the left and right directions, and several clamping structures are arranged on the extension rods so as to weld multiple auxiliary parts at the same time.

Embodiment 4 of the rear axle housing point fixing tooling provided by the present invention:

Its difference with embodiment 1 mainly lies in:

In Embodiment 1, the clamping structure includes a positioning mounting frame, and positioning jaws for clamping auxiliary parts are hinged on the positioning mounting frame, and a clamping cylinder is also hinged on the positioning mounting frame, and the clamping cylinder is hinged to the positioning jaws, so that When the clamping cylinder is extended, the positioning jaws clamp the accessories, and when the clamping cylinder shrinks, the positioning jaws release the clamping.

In this embodiment, the clamping structure is a pneumatic suction cup or an electromagnetic suction cup. Since some auxiliary parts are relatively small, they can be directly absorbed and grasped by the suction cup.

While various embodiments of the invention have been illustrated and described, it will be obvious to those skilled in the art that such embodiments are provided by way of example only. Many modifications, changes and substitutions will occur to those skilled in the art without departing from the idea and spirit of the present invention. It should be understood that various alternatives to the embodiments of the invention described herein may be employed in practicing the invention. The appended claims are intended to define the scope of the invention and therefore cover modular compositions, equivalents or alternatives within the scope of these claims.

Claims (10)

1. Rear axle housing click frock includes:

a frame (1);

the rear axle housing fixing tool is characterized by further comprising:

the lifting platform (7) is arranged on the frame (1) and is used for positioning the axle housing workpiece (5) and defining the axial extension direction of the axle housing workpiece (5) as the left-right direction by lifting and adjusting the height of the axle housing workpiece (5);

the two clamping mechanisms (2) are respectively arranged at the left end and the right end of the lifting table (7) and are used for clamping shaft tube flanges (3) at the two ends of the axle housing workpiece (5), the clamping mechanisms (2) are provided with translation structures (22), and the translation structures (22) drive the shaft tube flanges (3) to move to the axle housing workpiece (5) to be matched so as to perform welding point determination;

the auxiliary positioning mechanisms (4) are arranged on the front side and the rear side of the frame (1), the auxiliary positioning mechanisms (4) are used for clamping auxiliary parts to be welded, and during welding, the auxiliary positioning mechanisms (4) drive the auxiliary parts to move to be attached to the surface of the axle housing workpiece (5) and keep fixed so as to perform welding operation.

2. The rear axle housing dotting tool as defined in claim 1, wherein: the lifting platform (7) comprises a hydraulic cylinder (71) which is arranged on the frame (1) and used for controlling lifting, a guide seat (72) which is arranged on the frame (1) is arranged above the hydraulic cylinder (71), a positioning table (73) which is used for supporting and positioning the axle housing workpiece (5) is slidably arranged on the guide seat (72), the hydraulic cylinder (71) is connected with the positioning table (73), and the positioning table (73) is driven to lift by the hydraulic cylinder (71) so as to adjust the height of the axle housing workpiece (5).

3. The rear axle housing dotting tool as defined in claim 2, wherein: the upper surface of locating bench (73) can be dismantled and be connected with location structure to fix a position axle housing work piece (5), location structure still is equipped with the protection pad, in order to prevent that axle housing work piece (5) from damaging.

4. The rear axle housing dotting tool as defined in claim 3, wherein: the left side and the right side of the lifting platform (7) are respectively provided with a bearing frame (6) for bearing the axle housing workpiece (5) so as to prevent the hydraulic cylinder (71) from being damaged due to overlarge bearing of the lifting platform (7) when the axle housing workpiece (5) is placed.

5. The rear axle housing dotting tool as defined in claim 1, wherein: the clamping mechanism (2) comprises a clamping frame (21) arranged on the frame (1), a translation structure (22) is arranged on the clamping frame (21), a clamping structure for clamping the axle tube flange (3) is connected to an output shaft of the translation structure (22), and the translation structure (22) drives the clamping structure to move during welding, so that the axle tube flange (3) is matched with the axle housing workpiece (5).

6. The rear axle housing dotting tool as defined in claim 5, wherein: the clamping structure comprises a clamping installation frame (23) connected with a translation structure (22), a clamping jaw (25) used for clamping the shaft tube flange (3) is hinged to the clamping installation frame (23), a clamping cylinder (24) is hinged to the clamping installation frame (23), the clamping cylinder (24) is hinged to the clamping jaw (25), the clamping cylinder (24) clamps the shaft tube flange (3) when stretching, and the clamping cylinder (24) releases clamping of the clamping jaw (25) when contracting.

7. The rear axle housing dotting tool as defined in claim 1, wherein: the auxiliary positioning mechanism (4) comprises a positioning frame (41) which is detachably connected to the frame (1), a displacement cylinder (44) for driving the auxiliary to move is arranged at the top of the positioning frame (41), and a clamping structure is connected to an output shaft of the displacement cylinder (44).

8. The rear axle housing dotting tool as defined in claim 7, wherein: the clamping structure comprises a positioning installation frame (45), a positioning clamping jaw (43) for clamping an accessory is hinged to the positioning installation frame (45), a clamping cylinder (42) is hinged to the positioning installation frame (45), the clamping cylinder (42) is hinged to the positioning clamping jaw (43), the clamping cylinder (42) is used for clamping the accessory when the clamping cylinder (42) is extended, the positioning clamping jaw (43) is used for clamping the accessory when the clamping cylinder (42) is contracted, and the clamping cylinder (43) is used for clamping.

9. The rear axle housing dotting tool as defined in claim 8, wherein: and the positioning mounting frame (45) is also provided with a positioning bulge so as to position the auxiliary parts.

10. The rear axle housing dotting tool as defined in any one of claims 7 to 9, wherein: an extension rod arranged in the left-right direction is further connected to an output shaft of the displacement cylinder (44), and a plurality of clamping structures are arranged on the extension rod so as to weld a plurality of accessories at the same time.