Welding device for reinforcing liner tube of front auxiliary frame

By designing a welding device for the front subframe reinforcing liner, and using a cylinder to drive the positioning pin and clamping column to achieve automatic positioning and clamping, the problems of time-consuming and labor-intensive manual operation and unstable welding quality in the existing technology are solved, thereby improving production efficiency and welding quality and reducing costs.

CN224128994UActive Publication Date: 2026-04-17SHANGHAI ZHONGLI AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI ZHONGLI AUTO PARTS CO LTD
Filing Date
2025-05-15
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The welding of existing automotive chassis parts is time-consuming, labor-intensive, and inefficient due to manual operation. Furthermore, the welding quality is affected by the individual's skill level, and quality problems such as missed welds or misaligned welds are prone to occur, making it difficult to meet the requirements of mass production.

Method used

Design a welding device for the front subframe reinforcing liner tube, including a main positioning component, a clamping component and a secondary positioning component. Automatic positioning and clamping are achieved by using a cylinder to drive the positioning pin and clamping column, simplifying the operation process.

Benefits of technology

It improves production efficiency, reduces manual labor intensity, ensures welding quality, avoids quality defects such as incomplete welding, eliminates the need for additional inspection procedures, and reduces production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a welding device for a reinforcing liner tube of a front auxiliary frame, which comprises a bottom plate, a main positioning component is arranged at the top of one side of the bottom plate, a clamping component is arranged at the position close to the main positioning component, and an auxiliary positioning component is arranged at the top of one side of the bottom plate far away from the main positioning component; the main positioning assembly is provided with a first air cylinder and a first positioning pin, the first air cylinder drives the first positioning pin to stretch in and out, the clamping assembly is provided with a second air cylinder and a clamping column, the second air cylinder drives the clamping column to move up and down, and the position of the clamping column corresponds to the position of the first positioning pin in the vertical direction. The device is reasonable in design, simple to operate, low in manufacturing cost, high in production efficiency, free of professional welder operation, fixed in product welding seam position, free of quality defects such as welding skips and the like, and free of additional inspection procedures.
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Description

Technical Field

[0001] This utility model relates to the field of welding fixtures for chassis subframes, and particularly to a welding device for a front subframe reinforcing liner. Background Technology

[0002] The widespread use of welded sleeves in automotive chassis systems stems primarily from various factors, including the functional requirements, structural characteristics, and manufacturing process requirements of chassis components. The widespread adoption of welded sleeves in automotive chassis is essentially the result of multi-objective optimization, encompassing mechanical performance, production processes, and cost control. With the increasing demands for lightweighting and integration in new energy vehicles, this technology is developing towards "fewer weld points, higher precision, and greater intelligence," but it will remain one of the key processes in chassis manufacturing for the next decade.

[0003] When welding sleeves for automotive chassis parts, the usual operation involves keeping the equipment stationary while manually handling the parts. This is labor-intensive, time-consuming, and requires a lot of effort. Welding sleeves at different positions by rotating or moving the parts is inefficient and cannot meet the requirements of mass production.

[0004] Furthermore, the welding quality of the sleeves is affected by the individual's skill level, and is prone to risks such as incomplete welding, misaligned welding, burn-through, and double-eyelid welds, requiring a 100% inspection process for prevention, which increases production costs. Therefore, a welding fixture that is easy to operate, place, and remove is needed. Utility Model Content

[0005] To address this problem, a welding device for the front subframe reinforcing liner is proposed.

[0006] The technical solution of this utility model is: a welding device for a front subframe reinforcing liner, including a base plate, a main positioning component is provided on the top of one side of the base plate, a clamping component is provided near the main positioning component, and a secondary positioning component is provided on the top of the side of the base plate away from the main positioning component.

[0007] The main positioning component is provided with a first cylinder and a first positioning pin. The first cylinder drives the first positioning pin to extend in and out. The clamping component is provided with a second cylinder and a clamping column. The second cylinder drives the clamping column to move up and down. The position of the clamping column corresponds to the position of the first positioning pin in the vertical direction.

[0008] Preferably, the main positioning component includes a first connecting bracket, which is L-shaped. One section of the first connecting bracket is fixedly connected to the top surface of the base plate, and the other section is fixedly connected to a first positioning support. One end of the first positioning support is provided with a first cylinder, and a first guide sleeve is inserted inside the first positioning support. The first positioning pin is inserted inside the first guide sleeve.

[0009] Preferably, the piston rod head of the first cylinder is fixedly connected to the first connecting block, and one end of the first locating pin is coupled to the first connecting block.

[0010] Preferably, the end of the first positioning support away from the first cylinder is provided with a support block, and the end of the first positioning pin away from the first connecting block passes through the support block.

[0011] Preferably, the secondary positioning component includes a second positioning support, which is L-shaped, with one section of the second positioning support connected to the top surface of the base plate and the other section fixedly connected to a second positioning pin.

[0012] Preferably, a first adjusting right angle is provided at one corner where the second positioning support connects to the base plate.

[0013] Preferably, the clamping assembly includes a second connecting bracket, which is Z-shaped. The bottom of the second connecting bracket is connected to the top surface of the base plate. A second cylinder is provided at the top of the second connecting bracket. Second guide sleeves are provided on both sides of the second cylinder. The second guide sleeves pass through the top of the second connecting bracket. The piston rod head of the second cylinder is fixedly connected to the second connecting block. Guide rods are provided at both ends near the second connecting block. The guide rods pass through the second guide sleeves. The clamping post is located on the side of the second connecting block away from the second cylinder.

[0014] Preferably, a second adjustment right angle is provided at the corner of the connection between the second connecting bracket and the base plate away from the main positioning component.

[0015] The advantages of this utility model are: it is reasonably designed, easy to operate, has low manufacturing cost, high production efficiency, does not require professional welders, the weld position of the product is fixed and there are no quality defects such as missing welds, and no additional inspection process is required. Attached Figure Description

[0016] Figure 1 This is a perspective view of the welding device for the front subframe reinforcing liner of this utility model;

[0017] Figure 2 This is an exploded view of the main positioning component of this utility model;

[0018] Figure 3 This is a perspective view of the present invention in its working state.

[0019] The component names corresponding to the various reference numerals in the diagram are as follows:

[0020] 1. Base plate; 2. Main positioning assembly; 21. Support block; 22. First positioning pin; 23. First guide sleeve; 24. First connecting bracket; 25. First positioning support; 26. First connecting block; 27. First cylinder; 3. Secondary positioning assembly; 31. Second positioning pin; 32. Second positioning support; 33. First adjusting right angle; 4. Clamping assembly; 41. Second cylinder; 42. Second guide sleeve; 43. Second connecting bracket; 44. Guide rod; 45. Second connecting block; 46. Clamping column; 47. Second adjusting right angle. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0022] refer to Figure 1 , 2 As shown in the figure, this application discloses a welding device for a front subframe reinforcing liner, including a base plate 1, a main positioning component 2 is provided on the top of the base plate 1 near one side, a clamping component 4 is provided near the main positioning component 2, and a secondary positioning component 3 is provided on the top of the base plate 1 on the side away from the main positioning component 2.

[0023] The main positioning component 2 includes a first connecting bracket 24, which is L-shaped. One section of the first connecting bracket 24 is fixedly connected to the top surface of the base plate 1, and the other section is fixedly connected to a first positioning support 25. One end of the first positioning support 25 is fixedly connected to a support block 21, and the other end of the first positioning support 25 is provided with a first cylinder 27. The piston rod head of the first cylinder 27 is fixedly connected to the first connecting block 26. A first guide sleeve 23 is provided inside the first positioning support 25. In this embodiment, there are two first guide sleeves 23. A first positioning pin 22 is provided inside the first guide sleeve 23. One end of the first positioning pin 22 is coupled to the first connecting block 26, and the other end of the first positioning pin 22 is inserted into the support block 21. The first positioning pin 22 cooperates with the first guide sleeve 23 and can move vertically under the drive of the first cylinder 27. The support block 21 can ensure that the first positioning pin 22 extends to a precise position.

[0024] The secondary positioning component 3 includes a second positioning support 32, which is L-shaped. After being adjusted to a suitable position, one section of the second positioning support 32 is fixedly connected to the top surface of the base plate 1 by bolts, and the other section is fixedly connected to the second positioning pin 31. A first adjusting right angle 33 is provided at one corner where the second positioning support 32 connects to the base plate 1. ,The second positioning pin 31 can be adjusted up and down relative to the second positioning support 32. After adjustment, the first adjusting right angle 33 is fixedly connected to the top surface of the base plate 1 by bolts. The second positioning support 32 can be adjusted forward, backward, left and right relative to the first adjusting right angle 33.

[0025] The clamping assembly 4 includes a second connecting bracket 43, which is Z-shaped. After being adjusted to a suitable position, the bottom of the second connecting bracket 43 is fixedly connected to the top surface of the base plate 1 by bolts. A second adjusting right angle 47 is provided at the corner of the connection between the second connecting bracket 43 and the base plate 1 away from the main positioning assembly 2. The second connecting bracket 43 can be adjusted in the front-back and left-right positions relative to the second adjusting right angle 47. After adjustment, the second adjusting right angle 47 is fixedly connected to the top surface of the base plate 1 by bolts. A second cylinder 41 is provided at the top of the second connecting bracket 43. Second guide sleeves 42 are provided on both sides of the second cylinder 41. The second guide sleeves 42 pass through the top of the second connecting bracket 43. The piston rod head of the second cylinder 41 is fixedly connected to the second connecting block 45. Guide rods 44 are provided near both ends of the second connecting block 45 and pass through the second guide sleeves 42. Two clamping posts 46 are provided on the side of the second connecting block 45 away from the second cylinder 41. The positions of the clamping posts 46 correspond vertically to the positions of the first positioning pins 22. The second guide sleeve 42 and the guide rod 44 cooperate to clamp the column 46 in a linear up-and-down motion under the drive of the second cylinder 41.

[0026] The specific working method is as follows: the first cylinder 27 drives the first positioning pin 22 to extend, and the upper plate of the front subframe longitudinal beam and the reinforcing liner are placed into the fixture in sequence. At this time, the reinforcing liner has been positioned by the first positioning pin 22, and the upper plate of the longitudinal beam is positioned by the front step part of the reinforcing liner and the supporting second positioning pin 31. The second cylinder 41 causes the clamping column 46 to move downward, and the clamping column 46 presses against the upper end face of the reinforcing liner to complete the positioning and clamping. After welding is completed, the first cylinder 27 and the second cylinder 41 are driven to make the first positioning pin 22 and the clamping column 46 disengage from the workpiece and the workpiece is taken out.

[0027] The beneficial effects are: the design of this utility model is reasonable, the operation is simple, the manufacturing cost is low, the production efficiency is high, no professional welder is required, the weld position of the product is fixed and there are no quality defects such as missing welds, and no additional inspection process is required.

[0028] It should be noted that the terms "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. "A plurality of" means two or more. "Installed," "connected," and "joined" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection.

[0029] The above description is merely a preferred embodiment of this utility model and is not intended to limit this utility model in any form or substance. It should be noted that those skilled in the art can make various improvements and additions without departing from this utility model, and these improvements and additions should also be considered within the protection scope of this utility model. Any modifications, alterations, and equivalent changes made by those skilled in the art without departing from the spirit and scope of this utility model using the disclosed technical content are equivalent embodiments of this utility model. Furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of this utility model are still within the scope of the technical solution of this utility model.

Claims

1. A welding device for reinforcing a subframe of a vehicle, characterized by comprising: Includes a base plate (1), a main positioning component (2) is provided on the top of the base plate (1) near one side, a clamping component (4) is provided near the main positioning component (2), and a secondary positioning component (3) is provided on the top of the side of the base plate (1) away from the main positioning component (2). The main positioning component (2) is provided with a first cylinder (27) and a first positioning pin (22). The first cylinder (27) drives the first positioning pin (22) to extend in and out. The clamping component (4) is provided with a second cylinder (41) and a clamping column (46). The second cylinder (41) drives the clamping column (46) to move up and down. The position of the clamping column (46) corresponds to the position of the first positioning pin (22) in the vertical direction.

2. The apparatus according to claim 1, wherein The main positioning component (2) includes a first connecting bracket (24), which is L-shaped. One section of the first connecting bracket (24) is fixedly connected to the top surface of the base plate (1), and the other section is fixedly connected to the first positioning support (25). One end of the first positioning support (25) is provided with a first cylinder (27). A first guide sleeve (23) is inserted inside the first positioning support (25), and the first positioning pin (22) is inserted inside the first guide sleeve (23).

3. The apparatus according to claim 2, wherein The piston rod head of the first cylinder (27) is fixedly connected to the first connecting block (26), and one end of the first positioning pin (22) is coupled to the first connecting block (26).

4. The welding device for the front subframe reinforcing liner according to claim 3, characterized in that, The first positioning support (25) has a support block (21) at one end away from the first cylinder (27), and the first positioning pin (22) is inserted into the support block (21) at one end away from the first connecting block (26).

5. The apparatus of claim 1 wherein, The sub-positioning component (3) includes a second positioning support (32), which is L-shaped. One section of the second positioning support (32) is connected to the top surface of the base plate (1), and the other section is fixedly connected to the second positioning pin (31).

6. The apparatus according to claim 5, wherein A first adjusting right angle (33) is provided at one corner where the second positioning support (32) connects to the base plate (1).

7. The apparatus of claim 1 wherein, The clamping assembly (4) includes a second connecting bracket (43), which is Z-shaped. The bottom of the second connecting bracket (43) is connected to the top surface of the base plate (1). A second cylinder (41) is provided at the top of the second connecting bracket (43). A second guide sleeve (42) is provided on both sides of the second cylinder (41). The second guide sleeve (42) passes through the top of the second connecting bracket (43). The piston rod head of the second cylinder (41) is fixedly connected to the second connecting block (45). Guide rods (44) are provided at both ends near the second connecting block (45). The guide rods (44) pass through the second guide sleeves (42). The clamping column (46) is located on the side of the second connecting block (45) away from the second cylinder (41).

8. The apparatus according to claim 7, wherein A second adjustment right angle (47) is provided at the corner of the connection between the second connecting bracket (43) and the base plate (1) away from the main positioning component (2).