Chassis lower support arm welding tool

Abstract

The utility model relates to the technical field of welding tools, and provides a welding tool for a lower support arm of a vehicle chassis, which can solve the problem that the lower support arm of the vehicle chassis is not provided with a matched welding tool, and a limiting plate, a first limiting disc and a second limiting disc on the welding tool can position a main mounting frame. A first mounting plate and a second mounting plate are arranged in parallel through a limiting cylinder, a first fixing block can position a side mounting frame and a first support plate, a second fixing block can position a second support plate and a third support plate, and a fourth support plate can be fixed to the bottom end of the main mounting frame by arranging a third positioning hole. A third mounting plate can be fixed to the front end of the upper end of the main mounting frame through a first limiting column, a fourth mounting plate can be fixed to the front side of the lower end of the main mounting frame through a second limiting column, all parts on the lower supporting arm are positioned and fixed through all parts on the welding tool, it can be guaranteed that the placing positions and angles of all the parts on the lower supporting arm are correct, and the welding efficiency is improved. Therefore, the lower support arm can be accurately welded.

Description

Technical Field

[0001] This utility model relates to the field of welding tooling technology, specifically a welding tooling for a vehicle chassis underarm. Background Technology

[0002] As a crucial component of the chassis suspension system, the lower control arm significantly impacts the driving experience. Adjusting and matching the lower control arm optimizes vehicle handling, providing drivers with a better driving experience. Simultaneously, the design of the lower control arm helps mitigate impacts from road surfaces, ensuring ride comfort. The lower control arm is welded, and each component requires precise positioning before welding to ensure correct placement during the process. This guarantees proper and seamless integration of the lower control arm with other vehicle components after welding. Therefore, a suitable welding fixture for the lower control arm is urgently needed. Utility Model Content

[0003] (a) Technical problem: The purpose of this utility model is to provide a welding fixture for the underbody support arm of a vehicle chassis, so as to solve the problem that there is no suitable welding fixture for the underbody support arm of the vehicle chassis.

[0004] (II) Technical Solution: To achieve the above objectives, this utility model provides the following technical solution:

[0005] A welding fixture for a vehicle chassis lower control arm, used for positioning during welding of the lower control arm, includes a base, a limiting plate, a snap-fit ​​block, a limiting cylinder, a first fixing block, a second fixing block, a first limiting plate, a first limiting post, a second limiting plate, and a second limiting post. The limiting plate, the snap-fit ​​block, the first fixing block, the second fixing block, the first limiting plate, and the second limiting plate are all fixedly mounted on the base. The snap-fit ​​blocks are symmetrically arranged on the left and right sides of the limiting plate. The snap-fit ​​blocks and the first limiting plate are located on the upper and lower sides of the first fixing block, and the first limiting plate and the first fixing block are located on the left and right sides of the snap-fit ​​block. The end of the snap-fit ​​block furthest from the base has a triangular groove. The first fixing block is provided with a first positioning hole. One end of the first limiting post is fixedly connected to the end of the first limiting plate away from the base. The limiting cylinder is not connected to the base. The first limiting plate and the second limiting plate are fixedly disposed on the upper and lower sides of the second fixing block. The second fixing block is provided with a second positioning hole. One end of the second limiting post is fixedly connected to the end of the second limiting plate away from the base. The base is provided with a first slot, a second slot and a third positioning hole. The first slot is symmetrically disposed on the upper and lower sides of the first fixing block. The second slot is symmetrically disposed on the upper and lower sides of the second fixing block. The third positioning hole is located below the second limiting plate.

[0006] Specifically, there are two of each of the following components: the snap-fit ​​block, the limiting cylinder, the first fixing block, the second fixing block, the first limiting disc, the first limiting post, the second limiting disc, and the second limiting post.

[0007] Specifically, the two snap-fit ​​blocks, the two limiting cylinders, the two first fixing blocks, the two second fixing blocks, the two first limiting discs, the two first limiting posts, the two second limiting discs, and the two second limiting posts are all symmetrically arranged on the base.

[0008] Specifically, the lower support arm includes a main mounting frame, a first mounting plate, a second mounting plate, a side mounting frame, a first support plate, a second support plate, a third support plate, a fourth support plate, a third mounting plate, and a fourth mounting plate. The main mounting frame is placed against the base. The main mounting frame is provided with a first positioning groove and a second positioning groove. The first limiting plate is adapted to the first positioning groove, and the second limiting plate is adapted to the second positioning groove. The upper end of the main mounting frame is in contact with the bottom end of the limiting plate.

[0009] Specifically, the first mounting plate and the second mounting plate are both placed on the upper part of the main mounting frame. One end of the first mounting plate is placed in the triangular groove of the snap-fit ​​block. The first mounting plate is provided with a third positioning groove, and the second mounting plate is provided with a fourth positioning groove. The limiting cylinder passes through the third positioning groove and the fourth positioning groove in sequence.

[0010] Specifically, the side mounting bracket is placed on the left and right sides of the main mounting bracket. The side end of the side mounting bracket is provided with an ear plate, and the ear plate is provided with a first fastening hole. The first bracket plate is placed on the main mounting bracket and the side mounting bracket. The first bracket plate is provided with a second fastening hole. The ear plate and the first bracket plate are respectively placed on the upper and lower sides of the first fixing block, and the rear ends of the ear plate and the first bracket plate are both placed in the first slot. The first fastening hole, the second fastening hole and the first positioning hole are compatible.

[0011] Specifically, the second bracket plate and the third bracket plate are both placed on the main mounting bracket and the side mounting bracket. The second bracket plate is provided with a third fastening hole, and the third bracket plate is provided with a fourth fastening hole. The second bracket plate and the third bracket plate are respectively placed on the upper and lower sides of the second fixing block, and the rear ends of the second bracket plate and the third bracket plate are both placed in the second slot. The third fastening hole, the fourth fastening hole and the second positioning hole are compatible.

[0012] Specifically, the fourth bracket plate is placed at the bottom of the main mounting frame, and the fourth bracket plate is provided with a fifth fastening hole, which is adapted to the third positioning hole.

[0013] Specifically, the third mounting plate is placed on the front side of the main mounting frame, and the third mounting plate is provided with a fifth positioning groove, which is adapted to the first limiting post.

[0014] Specifically, the fourth mounting plate is placed on the front side of the main mounting frame, and the fourth mounting plate is provided with a sixth positioning groove, which is adapted to the second limiting post.

[0015] (III) Beneficial Effects: This utility model provides a welding fixture for the lower control arm of a vehicle chassis, which effectively solves the problem of the lack of suitable welding fixtures for the lower control arm of the vehicle chassis. The limiting plate, the first limiting plate, and the second limiting plate on the welding fixture can position the main mounting frame. The limiting cylinder makes the first mounting plate and the second mounting plate parallel to each other. The first fixing block can position the side mounting frame and the first bracket plate. The second fixing block can position the second bracket plate and the third bracket plate. By setting the third positioning hole and using fasteners, the fourth bracket plate can be fixed. At the bottom of the main mounting bracket, the first limiting post, coaxially arranged with the first limiting plate, can fix the third mounting plate to the upper front end of the main mounting bracket. The second limiting post, coaxially arranged with the second limiting plate, can fix the fourth mounting plate to the lower front side of the main mounting bracket. By positioning and fixing the components on the lower support arm through the components on the welding fixture, the correct placement position and angle of the components on the lower support arm can be ensured, thereby ensuring accurate welding of the lower support arm, avoiding deviations caused by manual positioning, and ensuring that the lower support arm can be well assembled with other components of the vehicle without interference after welding. Attached Figure Description

[0016] The technical solution and beneficial effects of this utility model will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the structure of a welding fixture for a vehicle chassis under arm according to the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the lower support arm of this utility model;

[0019] Figure 3 This is a structural schematic diagram of the lower support arm of this utility model from another perspective;

[0020] Figure 4 This is a schematic diagram of the structure of the welding fixture for assembling the lower support arm of this utility model;

[0021] Figure 5This is a structural schematic diagram of the lower support arm of the welding fixture of this utility model from another perspective.

[0022] In the diagram: 10. Base; 101. First slot; 102. Second slot; 103. Third positioning hole; 11. Limiting plate; 12. Snap-fit ​​block; 13. Limiting cylinder; 14. First positioning block; 141. First positioning hole; 15. Second positioning block; 151. Second positioning hole; 16. First limiting plate; 17. First limiting post; 18. Second limiting plate; 19. Second limiting post; 20. Lower support arm; 21. Main mounting bracket; 211. First positioning groove; 212. 22. First mounting plate; 221. Third positioning groove; 23. Second mounting plate; 24. Side mounting bracket; 241. Ear plate; 242. First fastening hole; 25. First bracket plate; 251. Second fastening hole; 26. Second bracket plate; 261. Third fastening hole; 27. Third bracket plate; 271. Fourth fastening hole; 28. Fourth bracket plate; 281. Fifth fastening hole; 29. ​​Third mounting plate; 30. Fourth mounting plate; 301. Sixth positioning groove. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] like Figure 1 — Figure 5As shown, this utility model describes a welding fixture for a vehicle chassis lower control arm, used to position various components of the lower control arm 20 during welding, thereby enabling precise welding of the lower control arm 20. It includes a base 10, a limiting plate 11, a snap-fit ​​block 12, a limiting cylinder 13, a first fixing block 14, a second fixing block 15, a first limiting plate 16, a first limiting post 17, a second limiting plate 18, and a second limiting post 19. The limiting plate 11, snap-fit ​​block 12, first fixing block 14, second fixing block 15, first limiting plate 16, and second limiting plate 18 are all fixedly mounted on the base 10. The snap-fit ​​blocks 12 are symmetrically arranged on the limiting plate. On the left and right sides of 11, the snap-fit ​​block 12 and the first limiting plate 16 are disposed on the upper and lower sides of the first fixing block 14, and the first limiting plate 16 and the first fixing block 14 are disposed on the left and right sides of the snap-fit ​​block 12. The positions of the snap-fit ​​block 12, the first fixing block 14 and the first limiting plate 16 form a triangle. The end of the snap-fit ​​block 12 away from the base 10 is a triangular groove. The first fixing block 14 is provided with a first positioning hole 141. One end of the first limiting post 17 is fixedly connected to the end of the first limiting plate 16 away from the base 10. The first limiting post 17 and the first limiting plate 16 are coaxially disposed. The limiting cylinder 13 is not connected to the base 10.

[0025] Furthermore, the first limiting plate 16 and the second limiting plate 18 are fixedly disposed on the upper and lower sides of the second fixing block 15. The second fixing block 15 is provided with a second positioning hole 151. One end of the second limiting post 19 is fixedly connected to the end of the second limiting plate 18 away from the base 10. The second limiting post 19 and the second limiting plate 18 are coaxially disposed. The base 10 is provided with a first slot 101, a second slot 102 and a third positioning hole 103. The first slot 101 is symmetrically disposed on the upper and lower sides of the first fixing block 14. The second slot 102 is symmetrically disposed on the upper and lower sides of the second fixing block 15. The third positioning hole 103 is located below the second limiting plate 18.

[0026] Among them, there are two of each of the following: snap-fit ​​block 12, limiting cylinder 13, first fixing block 14, second fixing block 15, first limiting plate 16, first limiting post 17, second limiting plate 18 and second limiting post 19.

[0027] Furthermore, two snap-fit ​​blocks 12, two limiting cylinders 13, two first fixing blocks 14, two second fixing blocks 15, two first limiting discs 16, two first limiting posts 17, two second limiting discs 18 and two second limiting posts 19 are all symmetrically arranged on the base 10.

[0028] The lower support arm 20 includes a main mounting frame 21, a first mounting plate 22, a second mounting plate 23, a side mounting frame 24, a first support plate 25, a second support plate 26, a third support plate 27, a fourth support plate 28, a third mounting plate 29, and a fourth mounting plate 30. The main mounting frame 21 is placed against the base 10. The main mounting frame 21 is provided with a first positioning groove 211 and a second positioning groove 212. The first limiting plate 16 is adapted to the first positioning groove 211, and the second limiting plate 18 is adapted to the second positioning groove 212. The upper end of the main mounting frame 21 contacts the bottom end of the limiting plate 11. The main mounting frame 21 is positioned and fixed by the limiting plate 11, the first limiting plate 16, and the second limiting plate 18.

[0029] Furthermore, both the first mounting plate 22 and the second mounting plate 23 are placed on the upper part of the main mounting frame 21. One end of the first mounting plate 22 is placed in the triangular groove of the snap-fit ​​block 12. The snap-fit ​​block 12 is used to adjust the placement angle of the first mounting plate 22. The first mounting plate 22 is provided with a third positioning groove 221, and the second mounting plate 23 is provided with a fourth positioning groove. The limiting cylinder 13 passes through the third positioning groove 221 and the fourth positioning groove in sequence. The limiting cylinder 13 can limit the second mounting plate 23 so that the second mounting plate 23 and the first mounting plate 22 are placed parallel to each other.

[0030] Furthermore, the side mounting bracket 24 is placed on the left and right sides of the main mounting bracket 21. The side end of the side mounting bracket 24 is provided with an ear plate 241, which has a first fastening hole 242. The first support plate 25 is placed on the main mounting bracket 21 and the side mounting bracket 24, and has a second fastening hole 251. The ear plate 241 and the first support plate 25 are respectively placed on the upper and lower sides of the first fixing block 14, and the rear ends of the ear plate 241 and the first support plate 25 are... All are placed in the first slot 101, which can limit the ear plate 241 and the first bracket plate 25. The first fastening hole 242, the second fastening hole 251 and the first positioning hole 141 are adapted to each other. The fasteners pass through the first fastening hole 242, the first positioning hole 141 and the second fastening hole 251 in sequence, thereby fixing the ear plate 241 and the first bracket plate 25, so that the side mounting plate 24 and the first bracket plate 25 can be accurately welded to the main mounting frame 21.

[0031] Furthermore, the second bracket plate 26 and the third bracket plate 27 are both placed on the main mounting bracket 21 and the side mounting bracket 24. The second bracket plate 26 is provided with a third fastening hole 261, and the third bracket plate 27 is provided with a fourth fastening hole 271. The second bracket plate 26 and the third bracket plate 27 are respectively placed on the upper and lower sides of the second fixing block 15, and the rear ends of the second bracket plate 26 and the third bracket plate 27 are both placed in the second slot 102. The second slot 102 can limit the second bracket plate 26 and the third bracket plate 27. The third fastening hole 261, the fourth fastening hole 271 and the second positioning hole 151 are adapted to each other. The fasteners pass through the third fastening hole 261, the second positioning hole 151 and the fourth fastening hole 271 in sequence, thereby fixing the second bracket plate 26 and the third bracket plate 27, so that the second bracket plate 26 and the third bracket plate 27 can be accurately welded to the main mounting bracket 21 and the side mounting bracket 24.

[0032] Furthermore, the fourth bracket plate 28 is placed at the bottom of the main mounting bracket 21. The fourth bracket plate 28 is provided with a fifth fastening hole 281, which is adapted to the third positioning hole 103. Fasteners pass through the fifth fastening hole 281 and the third positioning hole 103 in sequence, thereby realizing the positioning of the fourth bracket plate 28, so that the fourth bracket plate 28 can be accurately welded to the bottom of the main mounting bracket 21.

[0033] Furthermore, the third mounting plate 29 is placed on the front side of the main mounting frame 21. The third mounting plate 29 is provided with a fifth positioning groove, which is adapted to the first limiting post 17. The first limiting post 17 can realize the positioning of the third mounting plate 29.

[0034] Specifically, the fourth mounting plate 30 is placed on the front side of the main mounting frame 21. The fourth mounting plate 30 is provided with a sixth positioning groove 301, which is adapted to the second limiting post 19. The second limiting post 19 can realize the positioning of the fourth mounting plate 30.

[0035] This utility model provides a welding fixture for a vehicle chassis lower support arm, which effectively solves the problem of the lack of suitable welding fixtures for the vehicle chassis lower support arm. The limiting plate, first limiting plate, and second limiting plate on the welding fixture can position the main mounting frame. The limiting cylinder ensures that the first mounting plate and the second mounting plate are placed parallel to each other. The first fixing block can position the side mounting frame and the first bracket plate. The second fixing block can position the second bracket plate and the third bracket plate. By setting a third positioning hole and fasteners, the fourth bracket plate can be fixed to the bottom end of the main mounting frame. The first limiting post, which is coaxial with the first limiting plate, can fix the third mounting plate to the upper front end of the main mounting frame. The second limiting post, which is coaxial with the second limiting plate, can fix the fourth mounting plate to the lower front side of the main mounting frame. By positioning and fixing the components on the lower support arm through the various components on the welding fixture, the correct placement position and angle of the components on the lower support arm can be ensured, thereby ensuring accurate welding of the lower support arm, avoiding deviations caused by manual positioning, and ensuring that the lower support arm can be well assembled with other vehicle components without interference after welding.

[0036] The above are merely embodiments of this application and do not limit the scope of this patent application. Any equivalent structural or procedural changes made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. A welding fixture for a vehicle chassis lower control arm, used for positioning during welding of the lower control arm, characterized in that, The device includes a base, a limiting plate, a snap-fit ​​block, a limiting cylinder, a first fixing block, a second fixing block, a first limiting plate, a first limiting post, a second limiting plate, and a second limiting post. The limiting plate, the snap-fit ​​block, the first fixing block, the second fixing block, the first limiting plate, and the second limiting plate are all fixedly mounted on the base. The snap-fit ​​blocks are symmetrically arranged on the left and right sides of the limiting plate. The snap-fit ​​blocks and the first limiting plates are arranged on the upper and lower sides of the first fixing blocks, and the first limiting plates and the first fixing blocks are arranged on the left and right sides of the snap-fit ​​blocks. The end of the snap-fit ​​block away from the base has a triangular groove. The first fixing block is provided with a first positioning post. The first limiting post is fixedly connected to the end of the first limiting plate away from the base. The limiting cylinder is not connected to the base. The first limiting plate and the second limiting plate are fixedly disposed on the upper and lower sides of the second fixing block. The second fixing block is provided with a second positioning hole. The second limiting post is fixedly connected to the end of the second limiting plate away from the base. The base is provided with a first slot, a second slot and a third positioning hole. The first slot is symmetrically disposed on the upper and lower sides of the first fixing block. The second slot is symmetrically disposed on the upper and lower sides of the second fixing block. The third positioning hole is located below the second limiting plate.

2. The welding fixture for the underbody support arm of a vehicle chassis as described in claim 1, characterized in that, Two of each of the following components are provided: the snap-fit ​​block, the limiting cylinder, the first fixing block, the second fixing block, the first limiting disc, the first limiting post, the second limiting disc, and the second limiting post.

3. The welding fixture for the underbody support arm of a vehicle chassis as described in claim 2, characterized in that, The two snap-fit ​​blocks, the two limiting cylinders, the two first fixing blocks, the two second fixing blocks, the two first limiting discs, the two first limiting posts, the two second limiting discs and the two second limiting posts are all symmetrically arranged on the base.

4. The welding fixture for the underbody support arm of a vehicle chassis as described in claim 1, characterized in that, The lower support arm includes a main mounting frame, a first mounting plate, a second mounting plate, a side mounting frame, a first support plate, a second support plate, a third support plate, a fourth support plate, a third mounting plate, and a fourth mounting plate. The main mounting frame is placed against the base. The main mounting frame is provided with a first positioning groove and a second positioning groove. The first limiting plate is adapted to the first positioning groove, and the second limiting plate is adapted to the second positioning groove. The upper end of the main mounting frame is in contact with the bottom end of the limiting plate.

5. The welding fixture for the underbody support arm of a vehicle chassis as described in claim 4, characterized in that, Both the first mounting plate and the second mounting plate are placed on the upper part of the main mounting frame. One end of the first mounting plate is placed in the triangular groove of the snap-fit ​​block. The first mounting plate is provided with a third positioning groove, and the second mounting plate is provided with a fourth positioning groove. The limiting cylinder passes through the third positioning groove and the fourth positioning groove in sequence.

6. The welding fixture for the underbody support arm of a vehicle chassis as described in claim 4, characterized in that, The side mounting bracket is placed on the left and right sides of the main mounting bracket. The side end of the side mounting bracket is provided with an ear plate, and the ear plate is provided with a first fastening hole. The first bracket plate is placed on the main mounting bracket and the side mounting bracket. The first bracket plate is provided with a second fastening hole. The ear plate and the first bracket plate are respectively placed on the upper and lower sides of the first fixing block, and the rear ends of the ear plate and the first bracket plate are both placed in the first slot. The first fastening hole, the second fastening hole and the first positioning hole are compatible.

7. The welding fixture for the underbody support arm of a vehicle chassis as described in claim 4, characterized in that, The second bracket plate and the third bracket plate are both placed on the main mounting bracket and the side mounting bracket. The second bracket plate is provided with a third fastening hole and the third bracket plate is provided with a fourth fastening hole. The second bracket plate and the third bracket plate are respectively placed on the upper and lower sides of the second fixing block, and the rear sides of the second bracket plate and the third bracket plate are both placed in the second slot. The third fastening hole, the fourth fastening hole and the second positioning hole are compatible.

8. The welding fixture for the underbody support arm of a vehicle chassis as described in claim 4, characterized in that, The fourth bracket plate is placed at the bottom of the main mounting frame. The fourth bracket plate is provided with a fifth fastening hole, which is adapted to the third positioning hole.

9. The welding fixture for the underbody support arm of a vehicle chassis as described in claim 8, characterized in that, The third mounting plate is placed on the front side of the main mounting frame. The third mounting plate is provided with a fifth positioning groove, which is adapted to the first limiting post.

10. The welding fixture for the underbody support arm of a vehicle chassis as described in claim 9, characterized in that, The fourth mounting plate is placed on the front side of the main mounting frame. The fourth mounting plate is provided with a sixth positioning groove, which is adapted to the second limiting post.

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