A welding tool for automobile shock absorber bracket

Abstract

The utility model relates to a kind of welding tool for automobile shock absorber support seat, including base, base upper surface is equipped with feeding assembly, push and top assembly and limiting component, the side of feeding assembly is equipped with the positioning rod for the sleeve support seat, the limiting component is located in the right side of positioning rod, the push and top assembly is located in the side away from support seat opening direction, the push and top assembly is connected with feeding assembly by connecting rod, to drive feeding assembly and the reciprocating movement of positioning rod on support seat before and after, the upper surface of base is located in the opening direction side of support seat and is equipped with double-sided welding machine, it is used to weld support seat. The utility model is compact in structure, avoids manual adjustment support seat position, reduces manual operation error, realizes multidirectional automatic positioning and clamping, can make product each weld point pressure and energy distribution balanced, guarantees each weld point welding strength.

Description

Technical Field

[0001] This utility model relates to the field of automotive shock absorber technology, specifically to a welding fixture for an automotive shock absorber support. Background Technology

[0002] Automotive shock absorbers are primarily used to suppress oscillations caused by the rebound of springs after absorbing vibrations and to mitigate impacts from the road surface. The shock absorber bracket is a crucial component of the shock absorber, and its welding quality directly affects the overall vehicle's damping performance and safety reliability. Traditional welding processes typically involve manually placing the main and sub-brackets of the shock absorber onto a positioning fixture for initial fixation, followed by two separate welding operations. This welding method has several limitations: firstly, the welding process suffers from poor stability, relying heavily on the experience and skill level of the operators, leading to inconsistent welding quality and defects such as weld cracking and insufficient strength; secondly, due to mold wear, differences in material shrinkage, and cumulative errors from multiple clamping operations, it is difficult to maintain stable product dimensional accuracy, resulting in significant consistency issues; furthermore, manual operation is labor-intensive and inefficient, making it difficult to meet the demands of large-scale production, and has become a major bottleneck restricting product quality improvement and manufacturing efficiency optimization.

[0003] Therefore, it is necessary to study a welding fixture for automotive shock absorber brackets. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a welding fixture for automotive shock absorber brackets, which solves the problem of how to achieve efficient and precise production of existing pure electric passenger vehicle brackets under high strength requirements, while ensuring that the strength and toughness of the brackets meet the vehicle's usage needs, and solves the problems of low production efficiency, high cost, insufficient welding strength and poor forming stability in the existing technology.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a welding fixture for an automotive shock absorber bracket, comprising a base, a feeding assembly, a pushing assembly, and a limiting assembly on the upper surface of the base, a positioning rod for mounting the bracket on one side of the feeding assembly, the limiting assembly being located to the right of the positioning rod, the pushing assembly being located on the side away from the opening direction of the bracket, the pushing assembly being connected to the feeding assembly via a connecting rod to drive the bracket on the feeding assembly and the positioning rod to move back and forth reciprocally, and a double-sided welding machine being provided on the upper surface of the base on the side of the bracket opening direction for welding the bracket.

[0006] Furthermore, the feeding assembly includes a feeding cylinder, a support frame, and a connecting seat. The support frame is fixed on the base, the feeding cylinder is slidably mounted on the support frame, a baffle is fixed to the output end of the feeding cylinder, and a positioning rod is fixed to the baffle. The diameter of the positioning rod is adapted to the inner diameter of the support. A connecting seat is fixed on the side of the feeding cylinder near the pushing assembly.

[0007] Furthermore, the pushing assembly includes a pushing cylinder and a top plate. The output end of the pushing cylinder is fixedly connected to the top plate. The top plate has an arc-shaped structure for adapting to pressing against the support. A connecting sleeve is fixedly fitted on the end of the output shaft of the pushing cylinder near the top plate. A connecting rod is fixed on the side of the connecting sleeve facing the feeding assembly.

[0008] Furthermore, the connecting seat has a through hole, the connecting rod passes through the through hole and a stop is provided at the end of the connecting rod, and the push cylinder is controlled to extend and retract to synchronously drive the connecting rod to move back and forth in the through hole, and to drive the feeding cylinder to move back and forth.

[0009] Furthermore, the limiting assembly includes a support, a limiting cylinder, and a limiting plate. The support is fixedly connected to the upper surface of the base. The limiting cylinder is mounted on the support with its output end facing the positioning rod. The limiting plate is fixed to the output end of the limiting cylinder, and the limiting plate is driven to extend to clamp the support onto the positioning rod.

[0010] Furthermore, the support includes an outer bracket and a U-shaped plate. The left side of the outer bracket is a cylindrical structure, and the right side has an integrally formed sheet-like connecting part. The U-shaped plate is welded and fixed between adjacent connecting parts.

[0011] Furthermore, the front side of the U-shaped plate is provided with a positioning flange. After the U-shaped plate is welded and fixed inside the outer bracket, the front middle part of the connecting part abuts against the flange of the U-shaped plate, and the rear side of the U-shaped plate and the outer bracket together form a through hole for the shock absorber cylinder assembly.

[0012] The beneficial effects of the above technical solution are as follows: The welding fixture for automotive shock absorber bracket provided by this utility model uses QSTE series high-strength steel as the raw material for the bracket, which is suitable for the plastic deformation requirements of the outer bracket flanging and rolling. On the one hand, it can ensure that the bracket is not prone to cracking or deformation during cold forming such as flanging and rolling, thus ensuring the forming accuracy of the bracket; on the other hand, it can improve the overall load-bearing capacity of the bracket after welding, adapt to the vibration load when the shock absorber is working, extend the service life of the bracket, and ensure the structural performance of the bracket.

[0013] The triple positioning structure ensures that the bracket does not shift axially or wobble radially during welding, and that the relative position of the outer bracket and the U-shaped plate is accurate, avoiding deviations in the perforation size and misalignment of the connection after welding. Combined with the symmetrical welding of the double-sided welding machine, welding deformation can be reduced, ensuring the uniformity of strength of the welded parts of the bracket, and ultimately improving the assembly compatibility between the bracket and the shock absorber cylinder.

[0014] The tooling has a compact overall structure, which avoids manual adjustment of the support position, reduces human operation error, realizes multi-directional automatic positioning and clamping, and can balance the pressure and energy distribution of each weld point of the product, ensuring the welding strength of each weld point. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the support structure in this utility model; Figure 3 This is a schematic diagram of the implementation structure of the feeding component; Figure 4 This is a schematic diagram of the implementation structure of the push-top component; Figure 5 This is a structural diagram showing different implementation states of the push-top component.

[0016] Reference numerals: 1-Feeding assembly, 11-Support frame, 12-Feeding cylinder, 13-Positioning rod, 14-Baffle, 15-Connecting seat, 16-Guide rail, 17-Through hole, 2-Pushing assembly, 21-Upright frame, 22-Pushing cylinder, 23-Connecting sleeve, 24-Connecting rod, 25-Top plate, 3-Limiting assembly, 31-Support, 32-Limiting cylinder, 33-Limiting plate, 4-Base, 5-Support, 51-Outer bracket, 52-U-shaped plate, 53-Through hole, 6-Double-sided welding machine. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Example 1: This example aims to provide a welding fixture for automotive shock absorber brackets, mainly used for welding and forming the brackets on the cylinder of the automotive shock absorber, such as... Figure 1-5 As shown, the welding fixture includes a base 4, a feeding assembly 1, a pushing assembly 2, a limiting assembly 3, and a double-sided welding machine 6, all mounted on the upper surface of the base 4. After the support 5 is mounted on the positioning rod 13, it is conveyed to the intermediate transition electrode on the double-sided welding machine 6 by the action of the feeding assembly 1 and the pushing assembly 2. The limiting assembly 3 then presses it into the welding position, and the double-sided welding machine 6 performs the welding operation.

[0018] like Figure 2As shown, the support 5 of this utility model includes an outer bracket 51 and a U-shaped plate 52. The outer bracket 51 has a cylindrical structure on the left side and an integrally formed sheet-like connecting part on the right side. The U-shaped plate 52 is used to weld and fix the two between adjacent connecting parts to form an integral whole. Furthermore, the upper and lower ends of the outer bracket 51 are provided with flange structures. The outer bracket 51 and the U-shaped plate 52 are both provided with weight reduction holes in the middle. The front middle of the U-shaped plate 52 is also provided with a positioning flange. When the U-shaped plate 52 is installed in the outer bracket 51, the front middle of the connecting part of the outer bracket 51 abuts against the positioning flange of the U-shaped plate 52. The rear side of the U-shaped plate 52 and the outer bracket 51 together form a through hole 53 for the shock absorber cylinder to be installed, so as to fix it on the shock absorber cylinder later. Furthermore, this utility model selects QSTE series high-strength steel as the raw material for manufacturing the support 5 to ensure the structural strength, toughness and corrosion resistance of the support 5, and to ensure the plastic deformation of the flange and roll forming.

[0019] like Figure 1-4 As shown, the feeding assembly 1 is located on the left side of the support 5. The feeding assembly 1 includes a feeding cylinder 12, a support frame 11, and a connecting seat 15. The support frame 11 is fixed on the base 4, and the feeding cylinder 12 is slidably mounted on the support frame 11. In the specific implementation structure, guide rails 16 are provided on the upper and lower surfaces inside the support frame 11 along the length of the support frame 11. Slider blocks are fixed on the upper and lower surfaces of the feeding cylinder 12. The upper and lower sliders are respectively guided and slidably connected to the guide rails 16, so that the feeding cylinder 12 can move back and forth along the guide rails 16.

[0020] A baffle 14 is fixed to the output end of the feeding cylinder 12. The positioning rod 13 is vertically fixed on the baffle 14 and extends toward the transition electrode in the middle of the double-sided motor. The diameter of the positioning rod 13 is matched with the inner diameter of the through hole 53 on the support 5, and the length of the positioning rod 13 is matched with the length of the support 5, so that the support 5 can be fitted onto the positioning rod 13. A connecting seat 15 is fixed on the side of the feeding cylinder 12 near the push assembly 2.

[0021] The push assembly 2 includes a stand 21, a push cylinder 22, and a top plate 25. The stand 21 is fixed to the upper surface of the base 4, the push cylinder 22 is fixed to the stand 21, and the output end of the push cylinder 22 is fixedly connected to the top plate 25. The side of the top plate 25 near the support 5 has an arc-shaped structure to adapt to pressing against the support 5. The output shaft of the push cylinder 22 is fixedly fitted with a connecting sleeve 23 near the top plate 25, and the connecting sleeve 23 contacts the top plate 25. A connecting rod 24 is fixed on the side of the connecting sleeve 23 facing the feeding cylinder 12. A through hole 17 is opened on the connecting seat 15 of the feeding cylinder 12, and the connecting rod 24 passes through the through hole 17 and a stop is provided at the end of the connecting rod 24 away from the push cylinder 22.

[0022] In this embodiment, the feeding assembly 1 and the pushing assembly 2 are configured such that, initially, the pushing cylinder 22 is in a retracted state, and the connecting rod 24 is located at the end of the through hole 17 away from the feeding cylinder 12. At this time, there is a gap between the top plate 25 and the positioning rod 13 for mounting the support 5. After the support 5 is installed on the positioning rod 13, the pushing cylinder 22 controls the top plate 25 to move forward. After the connecting rod 24 moves forward toward the other end of the through hole 17, the pushing cylinder 22 continues to control the top plate 25 to move forward, so that it can be pressed against the support 5 until the inner cavity of the U-shaped plate 52 of the support 5 is engaged with the transition electrode of the double-sided welding machine 6. This controls the extension and retraction of the pushing cylinder 22 to synchronously drive the connecting rod 24 to move back and forth in the through hole 17, and to drive the feeding cylinder 12 to move back and forth, which facilitates the pressing and loosening of the support 5.

[0023] To ensure that the support 5 can be properly connected to the transition electrode after being installed on the positioning rod 13, thus ensuring the strength and quality of the weld, a limiting component 3 is provided on the right side of the positioning rod 13. The limiting component 3 includes a support 31, a limiting cylinder 32, and a limiting plate 33. The support 31 is fixedly connected to the upper surface of the base 4. The limiting cylinder 32 is installed on the support 31 with its output end facing the positioning rod 13. The limiting plate 33 is fixed to the output end of the limiting cylinder 32. The limiting plate 33 is driven to extend to clamp the support 5 onto the positioning rod 13.

[0024] It should be noted that the double-sided welding machine 6 described in this embodiment is a conventional technology and will not be elaborated here. After the support 5 is installed on the double-sided welding machine 6, the welding electrode of the double-sided welding machine 6 is pressed against the upper and lower surfaces of the connection part of the support 5, and the support 5 is welded by discharge.

[0025] Working principle description: The welding fixture for automotive shock absorber brackets provided by this utility model, in actual application, firstly, the U-shaped plate 52 and the outer bracket 51 are pre-assembled and stably mounted on the positioning rod 13 along the axial direction of the positioning rod 13. Then, the limiting cylinder 32 is extended to drive the limiting plate 33 to move towards the positioning rod 13 until the limiting plate 33 presses against the end of the welding transition electrode. Then, the feeding cylinder 12 is controlled to drive the positioning rod 13 to move towards the limiting plate 33 until the end of the positioning rod 13 contacts the limiting plate 33. At this time, the bracket 5 is clamped on the positioning rod 13 by the cooperation of the limiting plate 33 and the positioning rod 13.

[0026] Then, the push cylinder 22 is extended, causing the top plate 25 to move towards the support 5. In the initial stage, the connecting rod 24 slides in the through hole 17 of the feeding cylinder 12 connecting seat 15 until the top plate 25 contacts the support 5. At this time, the connecting rod 24 is located at the front end of the through hole 17. Then, the push cylinder 22 continues to extend. Under the action of the push cylinder 22, the connecting rod 24 drives the feeding cylinder 12 forward and continues to move forward until the inner cavity of the U-shaped plate 52 of the support 5 is accurately fitted onto the transition electrode, completing the positioning and installation of the support 5. The double-sided welding machine 6 is started to perform welding operations on the welding parts of the support 5, realizing the overall forming of the outer bracket 51 and the U-shaped plate 52.

[0027] After welding is completed, the limit cylinder 32 is controlled to retract sequentially, so that the limit plate 33 is disengaged from the support 5. The push cylinder 22 retracts to disengage the top plate 25 from the support 5. Then, the push cylinder 22 is controlled to retract to drive the feeding cylinder 12 to reset along the guide rail 16 through the connecting rod 24. After the positioning rod 13 returns to the initial position with the feeding cylinder 12, the welded support 5 is manually removed from the positioning rod 13 to complete the welding process of a single support.

[0028] The welding fixture for automotive shock absorber brackets provided by this utility model enables quick installation, quick replacement, and error-proofing of the brackets, effectively reducing the labor intensity of operators and improving the quality stability of the brackets during mass production. At the same time, the triple positioning structure ensures that the brackets do not shift axially or wobble radially during welding, and the relative position of the outer bracket and the U-shaped plate is accurate, avoiding deviations in perforation size and misalignment of the connection parts after welding. Combined with the symmetrical welding of the double-sided welding machine, welding deformation can be reduced, ensuring the uniformity of strength of the welded parts of the brackets, and ultimately improving the assembly compatibility between the brackets and the shock absorber cylinder.

[0029] The embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A welding fixture for an automotive shock absorber bracket, characterized in that: The base (4) includes a feeding assembly (1), a pushing assembly (2) and a limiting assembly (3) on its upper surface. The feeding assembly (1) has a positioning rod (13) for mounting the support on one side. The limiting assembly (3) is located to the right of the positioning rod (13). The pushing assembly (2) is located on the side away from the opening direction of the support (5). The pushing assembly (2) is connected to the feeding assembly (1) through a connecting rod (24) to drive the support (5) on the feeding assembly (1) and the positioning rod (13) to move back and forth. The upper surface of the base is provided with a double-sided welding machine (6) on the side of the opening direction of the support (5), which is used to weld the support.

2. The welding fixture for an automotive shock absorber bracket according to claim 1, characterized in that: The feeding assembly (1) includes a feeding cylinder (12), a support frame (11) and a connecting seat (15). The support frame (11) is fixed on the base (4). The feeding cylinder (12) is slidably mounted on the support frame (11). A baffle (14) is fixed at the output end of the feeding cylinder (12). The positioning rod is fixed on the baffle (14). The diameter of the positioning rod (13) is adapted to the inner diameter of the support (5). A connecting seat (15) is fixed on the side of the feeding cylinder (12) near the push assembly (2).

3. The welding fixture for an automotive shock absorber bracket according to claim 2, characterized in that: The push assembly (2) includes a push cylinder (22) and a top plate (25). The output end of the push cylinder (22) is fixedly connected to the top plate (25). The top plate (25) has an arc-shaped structure and is used to adapt to press against the support (5). A connecting sleeve (23) is fixedly fitted on one end of the output shaft of the push cylinder (22) near the top plate (25). A connecting rod (24) is fixed on the side of the connecting sleeve (23) facing the feeding assembly (1).

4. The welding fixture for an automotive shock absorber bracket according to claim 3, characterized in that: The connecting seat (15) has a through hole (17), the connecting rod (24) passes through the through hole (17) and a stop is provided at the end of the connecting rod (24). The push cylinder (22) is controlled to extend and retract to synchronously drive the connecting rod (24) to move back and forth in the through hole (17) and drive the feeding cylinder (12) to move back and forth.

5. The welding fixture for an automotive shock absorber bracket according to claim 1, characterized in that: The limiting component (3) includes a support (31), a limiting cylinder (32), and a limiting plate (33). The support (31) is fixedly connected to the upper surface of the base. The limiting cylinder (32) is mounted on the support (31) with its output end facing the positioning rod (13). The limiting plate (33) is fixed to the output end of the limiting cylinder (32). The limiting plate (33) is driven to extend to clamp the support (5) onto the positioning rod (13).

6. The welding fixture for an automotive shock absorber bracket according to claim 1, characterized in that: The support (5) includes an outer bracket (51) and a U-shaped plate (52). The outer bracket (51) has a cylindrical structure on the left and an integrally formed sheet-like connecting part on the right. The U-shaped plate (52) is welded and fixed between adjacent connecting parts.

7. The welding fixture for an automotive shock absorber bracket according to claim 6, characterized in that: The front side of the U-shaped plate (52) is provided with a positioning flange. When the U-shaped plate (52) is welded and fixed inside the outer bracket (51), the front middle part of the connecting part abuts against the flange of the U-shaped plate (52), and the rear side of the U-shaped plate (52) and the outer bracket (51) together form a through hole (53) for the shock absorber cylinder assembly.

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