Axle housing support welding tool mechanism

By designing a combination of multiple positioning mechanisms and support brackets, and utilizing a combination of magnets and positioning blocks, the problem of poor compatibility of bridge housing clamping fixtures was solved, enabling stable clamping and high-precision welding of the new product's bridge housing.

CN224143828UActive Publication Date: 2026-04-21郑州江东汽车零部件有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
郑州江东汽车零部件有限公司
Filing Date
2025-04-29
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In the existing technology, the compatibility of automotive axle housing clamping fixtures is poor, and they cannot effectively clamp the axle housings of new products, resulting in unstable positioning and affecting welding accuracy.

Method used

A welding fixture mechanism for a bridge housing support was designed, comprising a central positioning mechanism, a first-side positioning mechanism, a second-side positioning mechanism, and a third-side positioning mechanism. The bridge housing is positioned axially and radially by multiple support brackets and clamps, and a combination of magnets and positioning blocks is used to achieve stable clamping of the new product bridge housing.

Benefits of technology

This improved the compatibility and clamping accuracy of the new product bridge housing, enhanced the accuracy and stability of welding, and reduced the generation of defective products.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses an axle housing support welding tool mechanism, which belongs to the technical field of automobile part machining and particularly comprises a welding table. The middle positioning mechanism is arranged on the welding table and used for positioning the axle housing in the axial direction; the first side positioning mechanism is arranged on the welding table and is used for positioning the side part of the center of the axle housing; the second side positioning mechanism and the third side positioning mechanism are arranged on the welding table and used for positioning the axle housing in the radial direction; through the middle positioning mechanism, the first side positioning mechanism, the second side positioning mechanism and the third side positioning mechanism, the axle housing can be supported, positioned and placed on the welding table, and the axle housing can be positioned in the radial direction and the axial direction, so that the compatibility of the axle housing of a new product is improved, and the production efficiency is improved. And moreover, a new product can be conveniently clamped and positioned, and the welding accuracy of the axle housing is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of automotive parts processing technology, specifically relating to a welding fixture mechanism for an axle housing bracket. Background Technology

[0002] Because of its high positioning accuracy, fast clamping speed, and simple operation, the hydraulic automatic clamping and positioning device for automobile axle housings is widely used in the manufacturing of automobile rear axle housings.

[0003] Chinese utility model patent CN209551222U discloses a hydraulic positioning and clamping device for automotive axle housings. The device includes movable supports a and b placed on both sides of a base plate; floating support cylinders a, b, and c fixedly distributed on the circumference of the axle housing; floating support cylinders d, e, f, and g distributed below the circumference of the axle housing; rocker clamping cylinders c and d fixedly distributed opposite each other on both sides of the axle housing; a rotary smoothing cylinder distributed between the opposing floating support cylinders b and c relative to floating support cylinder a; and an axial positioning cylinder distributed on the movable support b. This utility model features a reasonable and novel design. By optimizing the clamping and positioning cylinder positions and process flow of the axle housing, it avoids instability in the processing dimensions caused by deformation of the axle housing, improves product quality, reduces defective product rates, and saves production costs.

[0004] The above application documents also have some shortcomings: during the clamping and positioning of the axle housing of the new product, the clamping tooling of the axle housing has poor compatibility and is not suitable for clamping and positioning the axle housing of the new product, which results in certain limitations of the clamping tooling. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides a welding fixture mechanism for axle housing supports, which features high compatibility with new axle housings and facilitates clamping and positioning of new axle housings.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a bridge housing support welding fixture mechanism, including a welding table;

[0007] The central positioning mechanism provided on the welding table is used to position the axle housing in the axial direction. The central positioning mechanism includes a central support, an end support, and an auxiliary support. The end support is provided on both sides of the central support, and the auxiliary support is provided between one of the end support and the central support.

[0008] A first side positioning mechanism is provided on the welding table for positioning the side of the center of the bridge housing; the first side positioning mechanism includes a side center support, which is provided on the front side of the center support support.

[0009] The second and third side positioning mechanisms, installed on the welding platform, are used to position the axle housing in the radial direction. The second side positioning mechanism includes a second side support, and several second side supports are provided on both the front and rear sides of the welding platform. The third side positioning mechanism includes a third side support, and the third side support is provided on the front side of the welding platform.

[0010] Preferably, the central support includes a first base plate, a bottom cylinder is fixedly connected to the top of the first base plate, a limit post is slidably connected to the top of the bottom cylinder, a top cylinder is fixedly connected to the top of the limit post, a spring is sleeved on the outside of the limit post, a support base plate is fixedly connected to the top of the top cylinder, and a cross support plate is fixedly provided on the top of the support base plate.

[0011] Preferably, the end support includes a second base plate, a vertical plate is fixedly connected to the top of the second base plate, a placement groove is provided on the top of the vertical plate, and first positioning blocks are fixedly provided on both sides of the placement groove.

[0012] Preferably, the auxiliary support includes a first base frame, a second positioning block is fixedly connected to the top of the first base frame, a first positioning side plate is fixedly connected to both sides of the second positioning block, and a second positioning side plate is fixedly connected to one end of the second positioning block.

[0013] Preferably, a first magnet is fixedly connected to the second positioning block, and a first positioning pin is fixedly connected to both sides of the first magnet.

[0014] Preferably, the side center support includes a second base frame, on which a first quick clamp is fixedly mounted, and a third base frame is fixedly mounted on the movable end of the first quick clamp. A second quick clamp is fixedly mounted on the third base frame, and a first support arm is fixedly mounted on the movable end of the second quick clamp. A plurality of spaced third positioning blocks are fixedly mounted on the top of the first support arm.

[0015] Preferably, each of the second side supports includes a fourth base frame, and a third quick clamp is fixedly provided on the top of the fourth base frame, and a fourth positioning block is fixedly provided on the movable end of the third quick clamp.

[0016] Preferably, each of the third side supports includes a fifth base frame, a fourth quick clamp is fixedly mounted on the top of the fifth base frame, a second support arm is fixedly mounted on the movable end of the fourth quick clamp, and a fifth positioning block is fixedly mounted on the second support arm.

[0017] Preferably, a second magnet is fixedly provided on the third positioning block, the fourth positioning block and the fifth positioning block.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This invention, through a central positioning mechanism, a first side positioning mechanism, a second side positioning mechanism, and a third side positioning mechanism, can support and position the axle housing on the welding table, and can position the axle housing in both the radial and axial directions. This not only increases the compatibility of axle housings for new products, but also facilitates the clamping and positioning of new products, and increases the accuracy of axle housing welding. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a top view of the structure of this utility model;

[0023] Figure 3 This is a three-dimensional structural diagram of the central support bracket of this utility model;

[0024] Figure 4 This is a three-dimensional structural diagram of the end support bracket of this utility model;

[0025] Figure 5 This is a three-dimensional structural diagram of the auxiliary support bracket of this utility model;

[0026] Figure 6 This is a three-dimensional structural diagram of the side center support of this utility model;

[0027] Figure 7 This is a schematic diagram of the first form of the second side support of this utility model;

[0028] Figure 8 This is a schematic diagram of the second form of the second side support of this utility model;

[0029] Figure 9 This is a schematic diagram of the third form of the second side support of this utility model;

[0030] Figure 10 This is a schematic diagram of the first form of the third side support of this utility model;

[0031] Figure 11 This is a schematic diagram of the second form of the third side support of this utility model;

[0032] Figure 12 This is a schematic diagram of the third form of the third side support of this utility model;

[0033] In the diagram: 1. Welding table; 2. Central support; 21. First base plate; 22. Bottom cylinder; 23. Top cylinder; 24. Spring; 25. Support base plate; 26. Cross support plate; 3. End support; 31. Second base plate; 32. Vertical plate; 33. Placement slot; 34. First positioning block; 4. Auxiliary support; 41. First base frame; 42. Second positioning block; 43. First positioning side plate; 44. Second positioning side plate; 45. First magnet; 46. ​​First positioning pin; 5. Side center support; 51. Second base frame; 52. First quick clamp; 53. Third base frame; 54. Second quick clamp; 55. First support arm; 56. Third positioning block; 6. Second side support; 61. Fourth base frame; 62. Third quick clamp; 63. Fourth positioning block; 7. Third side support; 71. Fifth base frame; 72. Fourth quick clamp; 73. Second support arm; 74. Fifth positioning block; 8. Second magnet. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] Example

[0036] Please see Figure 1-12 This embodiment provides the following technical solution: a bridge housing support welding fixture mechanism, including a welding table 1;

[0037] A central positioning mechanism is provided on the welding table 1 for positioning the axle housing in the axial direction. The central positioning mechanism includes a central support 2, an end support 3, and an auxiliary support 4. The end support 3 is provided on both sides of the central support 2, and an auxiliary support 4 is provided between one of the end support 3 and the central support 2. In some embodiments, the end support 3 is located on the right side of the central support 2. The central positioning mechanism facilitates the placement of the axle housing on the welding table 1 and the initial positioning operation of the axle housing in the axial direction.

[0038] A first side positioning mechanism is provided on the welding table 1 for positioning the side of the center of the bridge shell; the first side positioning mechanism includes a side center support 5, which is provided on the front side of the center support support 2. In some embodiments, the side center support 5 can be used to position the front side of the center of the bridge shell.

[0039] The second-side positioning mechanism and the third-side positioning mechanism are provided on the welding table 1 for positioning the bridge housing in the radial direction. The second-side positioning mechanism includes a second-side support 6, and several second-side supports 6 are provided on both the front and rear sides of the welding table 1. The third-side positioning mechanism includes a third-side support 7, and the third-side support 7 is provided on the front side of the welding table 1.

[0040] The axle housing support can be positioned on the welding table 1 by means of the central positioning mechanism, the first side positioning mechanism, the second side positioning mechanism and the third side positioning mechanism. The radial and axial directions of the axle housing can be positioned, which not only increases the compatibility of axle housings for new products, but also facilitates the clamping and positioning of new products and increases the accuracy of axle housing welding.

[0041] like Figure 3 As shown, the central support 2 includes a first base plate 21, a base cylinder 22 fixedly connected to the top of the first base plate 21, a limit post slidably connected to the top of the base cylinder 22, a top cylinder 23 fixedly connected to the top of the limit post, a spring 24 sleeved on the outside of the limit post, a support base plate 25 fixedly connected to the top of the top cylinder 23, and a cross support plate 26 fixedly installed on the top of the support base plate 25. Through the support base plate 25 and the cross support plate 26, the axle housing and the deceleration chamber inside the axle housing can be supported and positioned simultaneously. Through the base cylinder 22, the top cylinder 23 and the spring 24, the support base plate 25 can be damped and gently impacted, which is more conducive to the initial positioning of the axle housing.

[0042] like Figure 4 As shown, the end support 3 includes a second base plate 31, and a vertical plate 32 is fixedly connected to the top of the second base plate 31. A placement groove 33 is provided on the top of the vertical plate 32, and a first positioning block 34 is fixedly provided on both sides of the placement groove 33. Through the placement groove 33 and the first positioning block 34, the bridge shell can be locked in the placement groove 33 while being placed on the central support 2, and the radial direction of the bridge shell can be positioned.

[0043] In some embodiments, the first positioning block 34 is disposed on the front and rear sides of the placement groove 33, which is a "V" shaped groove, which is beneficial for positioning the axle housing shaft end.

[0044] like Figure 5As shown, the auxiliary support 4 includes a first base frame 41, a second positioning block 42 is fixedly connected to the top of the first base frame 41, a first positioning side plate 43 is fixedly connected to both sides of the second positioning block 42, and a second positioning side plate 44 is fixedly connected to one end of the second positioning block 42. In some embodiments, the first positioning side plate 43 is located at the left and right ends of the rear side of the second positioning block 42, and the second positioning side plate 44 is located at the rear end of the second positioning block 42. Through the second positioning block 42, the first side positioning plate and the second side positioning plate, it can be adapted to the surface of the bridge shell to position the bridge shell in the radial direction.

[0045] A first magnet 45 is fixedly connected to the second positioning block 42. A first positioning pin 46 is fixedly connected to both sides of the first magnet 45. The first magnet 45 can attract the surface of the bridge housing, making it easy for the bridge housing to fit with the first positioning block 34. After the first positioning block 34 fits with the bridge housing, the first positioning pin 46 can be inserted into the matching positioning hole on the bridge housing.

[0046] like Figure 6 As shown, the side center support 5 includes a second base frame 51, on which a first quick-clamping fixture 52 is fixedly mounted. A third base frame 53 is fixedly mounted on the movable end of the first quick-clamping fixture 52. A second quick-clamping fixture 54 is fixedly mounted on the third base frame 53. A first support arm 55 is fixedly mounted on the movable end of the second quick-clamping fixture 54. Several spaced third positioning blocks 56 are fixedly mounted on the top of the first support arm 55. The second quick-clamping fixture 54 enables the first support arm 55 to move forward horizontally. The first quick-clamping fixture 52 enables the third base frame 53 to drive the first support arm 55 to move upward. The upward movement of the third positioning blocks 56 generates an upward force on the corresponding position of the axle housing, thereby enabling the radial positioning of the axle housing.

[0047] In some embodiments, the first arm 55 has an arc-shaped structure, and the inner arc arm of the first arm 55 is adapted to the outer arc arm on the axle housing deceleration cavity with resin, and a plurality of third positioning blocks 56 are spaced apart on the first arm 55.

[0048] A second magnet 8 is fixedly connected to the third positioning block 56. The second magnet 8, when in contact with the corresponding position on the bridge housing, attracts the bridge housing and performs a positioning operation on the bridge housing.

[0049] The second side support 6 includes a fourth base frame 61. A third quick clamp 62 is fixedly installed on the top of the fourth base frame 61. A fourth positioning block 63 is fixedly installed on the movable end of the third quick clamp 62. Through the third quick clamp 62, the fourth positioning blocks 63 at the front and rear of the axle shell can move towards the axle shell simultaneously, so that the fourth positioning blocks 63 fit against the surface of the axle shell and position the corresponding position of the axle shell, thereby positioning the axle shell in the radial direction.

[0050] like Figure 2 As shown, there are five third quick clamps 62. There are two first-form third quick clamps 62, which are respectively located on the left and right sides of the rear end of the welding table 1. There are two second-form third quick clamps 62, which are respectively located on the left and right sides of the front end of the welding table 1. There is one third-form quick clamp, which is located between the second-form third quick clamp 62 on the left and the second bracket, and the third-form quick clamp is tilted.

[0051] like Figure 7-9 As shown, the fourth positioning block 63 on the first form third clamp quick clamp, the second form third clamp quick clamp, and the third form third clamp quick clamp are all rectangular structures.

[0052] The third side support 7 includes a fifth base frame 71. A fourth quick clamp 72 is fixedly installed on the top of the fifth base frame 71. A second support arm 73 is fixedly installed on the movable end of the fourth quick clamp 72. A fifth positioning block 74 is fixedly installed on the second support arm 73.

[0053] like Figure 2 As shown, there are four fourth quick clamps 72 arranged from left to right on the welding table 1. There are two first-form fourth quick clamps 72, which are respectively arranged on the left and right sides of the front end of the welding table 1. There is one second-form fourth quick clamp and one third-form fourth quick clamp.

[0054] like Figure 10-12 As shown, the second arm 73 on the fourth quick clamp 72 of the first form has a U-shaped structure, and there are two fifth positioning blocks 74 on each U-shaped second arm 73;

[0055] The second arm 73 on the fourth quick clamp 72 in the second form has an L-shaped structure, and the fifth positioning block 74 on the second arm 73 has an inclined surface on the side opposite to the bridge housing.

[0056] The second arm 73 on the fourth quick clamp 72 in the third form is a rectangular structure, and the fifth positioning block 74 on the rectangular second arm 73 forms an L-shaped structure with the rectangular second arm 73.

[0057] The third positioning block 56, the fourth positioning block 63 and the fifth positioning block 74 are all fixedly provided with a second magnet 8. The second magnet 8 helps to fix each of the third positioning block 56, the fourth positioning block 63 and the fifth positioning block 74 to the surface of the bridge housing, which is more conducive to positioning the bridge housing.

[0058] The working principle of this utility model is as follows: First step: Place the bridge housing on the support base plate 25 so that the cross support plate 26 can be locked on the inner wall of the deceleration chamber on the bridge housing. At the same time, the support base plate 25 drives the top cylinder 23 to move downward due to the gravity of the bridge housing, which compresses the spring 24.

[0059] Step 2: After the bridge housing moves downward to a certain position, the side wall of the end of the bridge housing fits with the first positioning block 34 in the placement groove 33, and the bottom wall of the bridge housing fits with the second positioning block 42. At the same time, the first magnet 45, the first positioning side plate 43 and the second positioning side plate 44 cooperate with each other to further support and position the bottom wall of the bridge housing. While the second positioning block 42 fits with the outer wall of the bridge housing, the first positioning pin 46 is inserted into the corresponding positioning hole on the outer wall of the bridge housing.

[0060] Step 3: Operate the second quick clamp 54 to move the first arm 55 toward the bridge housing until the inner wall of the first arm 55 is in contact with the bridge housing. Then operate the first quick clamp 52 to move the third base frame 53 to move the first arm 55 upward until the third positioning block 56 is in contact with the outer wall of the bridge housing. At the same time as the contact is made, the second magnet 8 attracts the outer wall of the bridge housing.

[0061] Step 4: Operate each third clamp 62 in sequence to move each fourth positioning block 63 toward the bridge housing until the fourth positioning block 63 is in contact with the outer wall of the bridge housing. At the same time as the contact is made, the second magnet 8 attracts the outer wall of the bridge housing.

[0062] Step 5: Operate the fourth quick clamp 72 in sequence, so that each second arm 73 drives the fifth positioning block 74 to move towards the outer wall of the bridge housing until the fifth positioning block 74 is in contact with the outer wall of the bridge housing. At the same time as the contact is made, the second magnet 8 attracts the outer wall of the bridge housing.

[0063] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A housing support welding fixture mechanism characterized by: Including the welding station (1); The central positioning mechanism provided on the welding table (1) is used to position the bridge housing in the axial direction. The central positioning mechanism includes a central support support (2), an end support support (3) and an auxiliary support support (4). The end support support (3) is provided on both sides of the central support support (2), and the auxiliary support support (4) is also provided between one of the end support support (3) and the central support support (2). The first side positioning mechanism is provided on the welding table (1) for positioning the side of the bridge housing center; the first side positioning mechanism includes a side center support (5), which is provided on the front side of the center support support (2). The second side positioning mechanism and the third side positioning mechanism are provided on the welding table (1) for positioning the bridge shell in the radial direction. The second side positioning mechanism includes a second side support (6), and several second side supports (6) are provided on both the front and rear sides of the welding table (1). The third side positioning mechanism includes a third side support (7), and the third side support (7) is provided on the front side of the welding table (1).

2. The bridge housing support welding fixture mechanism according to claim 1, characterized in that: The central support (2) includes a first base plate (21), a bottom cylinder (22) is fixedly connected to the top of the first base plate (21), a limit post is slidably connected to the top of the bottom cylinder (22), a top cylinder (23) is fixedly connected to the top of the limit post, a spring (24) is sleeved on the outside of the limit post, a support base plate (25) is fixedly connected to the top of the top cylinder (23), and a cross support plate (26) is fixedly installed on the top of the support base plate (25).

3. The bridge carrier welding fixture of claim 1, wherein: The end support (3) includes a second base plate (31), and a vertical plate (32) is fixedly connected to the top of the second base plate (31). A placement groove (33) is provided on the top of the vertical plate (32), and a first positioning block (34) is fixedly provided on both sides of the placement groove (33).

4. The bridge carrier welding fixture of claim 1, wherein: The auxiliary support bracket (4) includes a first base frame (41), a second positioning block (42) is fixedly connected to the top of the first base frame (41), a first positioning side plate (43) is fixedly connected to both sides of the second positioning block (42), and a second positioning side plate (44) is fixedly connected to one end of the second positioning block (42).

5. The bridge carrier welding fixture of claim 4, wherein: The second positioning block (42) is fixedly connected to a first magnet (45), and the first positioning pins (46) are fixedly connected to both sides of the first magnet (45).

6. The bridge carrier welding fixture of claim 1, wherein: The side center support (5) includes a second base frame (51), on which a first quick clamp (52) is fixedly mounted. A third base frame (53) is fixedly mounted on the movable end of the first quick clamp (52), on which a second quick clamp (54) is fixedly mounted. A first support arm (55) is fixedly mounted on the movable end of the second quick clamp (54), and a plurality of spaced third positioning blocks (56) are fixedly mounted on the top of the first support arm (55).

7. The kind of axle housing support welding tooling mechanism according to claim 6, characterized in that: The second side support (6) includes a fourth base frame (61), and a third quick clamp (62) is fixedly installed on the top of the fourth base frame (61). A fourth positioning block (63) is fixedly installed on the movable end of the third quick clamp (62).

8. The bridge carrier welding fixture of claim 7, wherein: The third side support (7) includes a fifth base frame (71), and a fourth quick clamp (72) is fixedly installed on the top of the fifth base frame (71). A second support arm (73) is fixedly installed on the movable end of the fourth quick clamp (72), and a fifth positioning block (74) is fixedly installed on the second support arm (73).

9. The bridge carrier welding fixture of claim 8, wherein: The third positioning block (56), the fourth positioning block (63) and the fifth positioning block (74) are all fixedly provided with a second magnet (8).

Citation Information

Patent Citations

  • Hydraulic positioning and pressing device for automobile axle housing

    CN209551222U