A welding fixture that can reduce product deformation

Abstract

This utility model relates to a welding fixture, specifically a welding fixture that can reduce product deformation. The welding fixture includes a receiving platform, a support arm on the receiving platform, and an upper positioning mechanism located above the support arm. A side positioning mechanism is located between the support arm and the upper positioning mechanism. The upper positioning mechanism includes a first cylinder and an upper clamping block connected to the output end of the first cylinder. A lower contact step and a first contact inner wall located on one side of the lower contact step are provided on the lower end face of the upper clamping block. The side positioning mechanism includes a second cylinder and a side clamping block connected to the output end of the second cylinder. A side contact step and a second contact inner wall located on one side of the side clamping block are provided on the end of the side clamping block near the upper clamping block. This welding fixture, which reduces product deformation, can avoid inaccurate welding positions caused by friction between the product and the upper or side clamping blocks, ensuring welding accuracy and improving yield.

Description

Technical Field

[0001] This utility model relates to a welding fixture, specifically a welding fixture that can reduce product deformation. Background Technology

[0002] Welding fixtures are specialized equipment that use mechanical structures to precisely position and securely hold welded products. They are mainly used to control welding deformation, ensure product dimensional accuracy, and improve assembly efficiency.

[0003] Existing welding fixtures are complex in structure and poorly designed. The positioning structure on these fixtures typically only uses the simplest contact connection to limit the product's position. When the product is large, it may experience sliding friction with the positioning structure, resulting in slight movement and inaccurate welding position, reduced yield, and hindering mass production. Furthermore, the product is continuously heated during welding, and this heat cannot be dissipated through the fixture, causing heat accumulation and potentially leading to significant deformation. Therefore, the inventors have improved the structure of the welding fixture. Utility Model Content

[0004] The purpose of this utility model is to provide a welding fixture that can reduce product deformation. This welding fixture has the advantages of simple structure, reasonable design, avoiding inaccurate welding position caused by friction between the product and the upper or side clamping block, ensuring welding accuracy, improving yield, facilitating large-scale production, accelerating product heat dissipation, reducing product deformation, and avoiding significant product deformation. It solves the problems mentioned in the above-mentioned technical background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a welding fixture that can reduce product deformation, the welding fixture including a receiving platform, a support arm and an upper positioning mechanism located above the support arm on the receiving platform, and a side positioning mechanism between the support arm and the upper positioning mechanism. The upper positioning mechanism includes a first cylinder and an upper clamping block connected to the output end of the first cylinder. A lower contact step and a first contact inner wall located on one side of the lower contact step are provided on the lower end face of the upper clamping block. The side positioning mechanism includes a second cylinder and a side clamping block connected to the output end of the second cylinder. A side contact step and a second contact inner wall located on one side of the side contact step are provided on one end of the side clamping block near the upper clamping block.

[0006] Preferably, there are two sets of support arms, upper positioning mechanisms and side positioning mechanisms, and the two sets of support arms, two sets of upper positioning mechanisms and two sets of side positioning mechanisms are symmetrically arranged on the receiving platform.

[0007] Preferably, the support arm includes a main support fixed to the receiving platform and a bracket fixed to the main support. The bracket is provided with a suspension step and an upper matching arc surface located on one side of the suspension step. The upper matching arc surface is located at the end of the bracket away from the main support.

[0008] Preferably, the first cylinder is fixed to the lower end face of the upper fixing block, and the upper fixing block is fixed to the receiving platform.

[0009] Preferably, the end of the second cylinder away from the side clamping block is fixed to the side fixing block, and the side fixing block is fixed to the receiving platform.

[0010] Preferably, the lower contact step is horizontally arranged, while the first contact inner wall, the side contact step, and the second contact inner wall are all vertically arranged.

[0011] Preferably, the depth of the first contact with the inner wall is between 10 mm and 22 mm, and the depth of the second contact with the inner wall is between 12 mm and 25 mm.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model provides a welding fixture that can reduce product deformation. The welding fixture includes a receiving platform, a support arm and an upper positioning mechanism located above the support arm on the receiving platform, and a side positioning mechanism between the support arm and the upper positioning mechanism. The overall structure is simple and reasonably designed. The upper positioning mechanism includes a first cylinder and an upper clamping block connected to the output end of the first cylinder. The side positioning mechanism includes a second cylinder and a side clamping block connected to the output end of the second cylinder. The product is positioned vertically by the operation of the two first cylinders and horizontally by the operation of the two second cylinders. In addition, the product itself is suspended on two hangers, so the position of the product to be welded remains stable and stationary, avoiding possible shaking or misalignment of the product in various directions, ensuring welding accuracy, improving yield, facilitating large-scale production, and suitable for widespread use.

[0014] 2. The upper clamping block and the side clamping block in this utility model are both made of brass. The upper clamping block and the side clamping block are in direct contact with the product, which helps to transfer the heat generated by the product during welding to the upper clamping block and the side clamping block, accelerates the heat dissipation of the product, reduces the deformation of the product, and avoids the product from being significantly deformed.

[0015] 3. The hanger in this utility model is provided with a suspension step and an upper mating arc surface located on one side of the suspension step. A lower contact step and a first contact inner wall located on one side of the lower contact step are provided on the lower end face of the upper clamping block. A side contact step and a second contact inner wall located on one side of the side contact step are provided on the end of the side clamping block near the upper clamping block. After the product is suspended on the two hangers, the two upper mating arc surfaces are in contact with the inner wall of the product for initial positioning. The lower contact step and the first contact inner wall simultaneously contact the product to position the top of the product, preventing slight vertical and horizontal movement of the top of the product. Finally, the side of the product is positioned by the side contact step and the second contact inner wall simultaneously contacting the product, preventing sliding friction between the product and the upper or side clamping block, and preventing slight vertical and horizontal movement of the side of the product. This welding fixture, by providing detailed positioning for each position of the product, avoids inaccurate welding positions caused by slight product movement, and is highly practical. Attached Figure Description

[0016] Figure 1 This is the front view of the present utility model;

[0017] Figure 2 This is a structural diagram of the present utility model;

[0018] Figure 3 This is a schematic diagram of the support arm of this utility model;

[0019] Figure 4 This is a schematic diagram of the clamping block of this utility model;

[0020] Figure 5 This is a schematic diagram of the side positioning mechanism of this utility model;

[0021] Figure 6 This is one of the schematic diagrams showing the product positioning according to this utility model;

[0022] Figure 7 This is the second schematic diagram showing the product positioning according to this utility model.

[0023] The reference numerals and names in the figure are as follows: 1. Receiving platform; 2. Support arm; 21. Main support; 22. Hanger; 221. Suspension step; 222. Upper mating arc surface; 3. Upper positioning mechanism; 31. First cylinder; 32. Upper clamping block; 321. Lower contact step; 322. First contact inner wall; 33. Upper fixing block; 4. Side positioning mechanism; 41. Second cylinder; 42. Side clamping block; 421. Side contact step; 422. Second contact inner wall; 43. Side fixing block. Detailed Implementation

[0024] 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.

[0025] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" 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. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0026] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0027] Please see Figure 1 The present invention provides an embodiment of a welding fixture that can reduce product deformation. The welding fixture includes a receiving platform 1, a support arm 2 and an upper positioning mechanism 3 located above the support arm 2 on the receiving platform 1, and a side positioning mechanism 4 between the support arm 2 and the upper positioning mechanism 3. There are two sets of each of the support arm 2, the upper positioning mechanism 3 and the side positioning mechanism 4, and the two sets of support arms 2, the two sets of upper positioning mechanisms 3 and the two sets of side positioning mechanisms 4 are symmetrically arranged on the receiving platform 1.

[0028] Please see Figure 2The support arm 2 includes a main support 21 fixed on the receiving platform 1 and a hanger 22 fixed on the main support 21. The upper positioning mechanism 3 includes a first cylinder 31 and an upper clamping block 32 connected to the output end of the first cylinder 31. The first cylinder 31 is fixed to the lower end face of the upper fixing block 33, and the upper fixing block 33 is fixed on the receiving platform 1. The side positioning mechanism 4 includes a second cylinder 41 and a side clamping block 42 connected to the output end of the second cylinder 41. The end of the second cylinder 41 away from the side clamping block 42 is fixed to the side fixing block 43, and the side fixing block 43 is fixed on the receiving platform 1.

[0029] Please see Figure 3 The bracket 22 is provided with a suspension step 221 and an upper matching arc surface 222 located on one side of the suspension step 221. The upper matching arc surface 222 is located at the end of the bracket 22 away from the main support 21.

[0030] Please see Figure 4 A lower contact step 321 and a first contact inner wall 322 located on one side of the lower contact step 321 are provided on the lower end face of the upper clamping block 32. The lower contact step 321 is horizontally arranged.

[0031] Please see Figure 5 The side clamping block 42 is provided with a side contact step 421 and a second contact inner wall 422 located on one side of the side contact step 421 at one end near the upper clamping block 32. In this embodiment, the upper clamping block 32 and the side clamping block 42 are both made of brass to accelerate heat dissipation and reduce product deformation. The first contact inner wall 322, the side contact step 421 and the second contact inner wall 422 are all vertically arranged. The depth of the first contact inner wall 322 is between 10mm and 22mm, and the depth of the second contact inner wall 422 is between 12mm and 25mm.

[0032] Please see Figures 6 to 7 After the product is suspended on the two hangers 22, the two upper mating arc surfaces 222 are in contact with the inner wall of the product to initially position the product. The lower contact step 321 and the first contact inner wall 322 simultaneously contact the product to position the top of the product, preventing slight vertical and horizontal movement of the top of the product. Then, the side contact step 421 and the second contact inner wall 422 simultaneously contact the product to position the side of the product, effectively preventing sliding friction between the product and the upper clamping block 32 or the side clamping block 42.

[0033] Working principle: Please refer to the following again. Figures 1 to 5In the operation of this utility model, the product is first suspended on two hangers 22, with the inner wall of the product contacting the two upper mating arc surfaces 222 for initial positioning. Then, the two first cylinders 31 work simultaneously, causing the two upper clamping blocks 32 to sink, so that the two lower contact steps 321 contact the product, and the two first contact inner walls 322 also contact the product. The top of the product cannot move. After that, the two second cylinders 41 work, so that the two side clamping blocks 42 contact and connect with the two ends of the product respectively. The side of the product contacts the side contact steps 421 and the second contact inner walls 422. One side clamping block 42 clamps the product faster, and the other side clamping block 42 clamps it slower, thus positioning both ends of the product simultaneously. Then, welding can begin. After welding, the two upper clamping blocks 32 are first separated from the product, then the two side clamping blocks 42 are separated from the product, and then the product is lifted a short distance to separate it from the hanger 22.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A welding fixture that can reduce product deformation, comprising a receiving platform (1), characterized in that: The receiving platform (1) is provided with a support arm (2) and an upper positioning mechanism (3) located above the support arm (2). A side positioning mechanism (4) is provided between the support arm (2) and the upper positioning mechanism (3). The upper positioning mechanism (3) includes a first cylinder (31) and an upper clamping block (32) connected to the output end of the first cylinder (31). The lower end face of the upper clamping block (32) is provided with a lower contact step (321) and a first contact inner wall (322) located on one side of the lower contact step (321). The side positioning mechanism (4) includes a second cylinder (41) and a side clamping block (42) connected to the output end of the second cylinder (41). The side clamping block (42) is provided with a side contact step (421) and a second contact inner wall (422) located on one side of the side contact step (421) near the upper clamping block (32).

2. The welding fixture for reducing product deformation according to claim 1, characterized in that: The support arm (2), upper positioning mechanism (3) and side positioning mechanism (4) are each provided in two sets, and the two sets of support arms (2), two sets of upper positioning mechanisms (3) and two sets of side positioning mechanisms (4) are symmetrically arranged on the receiving platform (1).

3. A welding fixture for reducing product deformation according to claim 1, characterized in that: The support arm (2) includes a main support (21) fixed on the receiving platform (1) and a hanging frame (22) fixed on the main support (21). The hanging frame (22) is provided with a suspension step (221) and an upper matching arc surface (222) located on one side of the suspension step (221). The upper matching arc surface (222) is located at the end of the hanging frame (22) away from the main support (21).

4. A welding fixture for reducing product deformation according to claim 1, characterized in that: The first cylinder (31) is fixed to the lower end face of the upper fixing block (33), and the upper fixing block (33) is fixed to the receiving platform (1).

5. A welding fixture for reducing product deformation according to claim 1, characterized in that: The end of the second cylinder (41) away from the side clamping block (42) is fixed to the side fixing block (43), which is fixed to the receiving platform (1).

6. A welding fixture for reducing product deformation according to claim 1, characterized in that: The lower contact step (321) is horizontally arranged, while the first contact inner wall (322), the side contact step (421), and the second contact inner wall (422) are all vertically arranged.

7. A welding fixture for reducing product deformation according to claim 1, characterized in that: The depth of the first contact inner wall (322) is between 10 mm and 22 mm, and the depth of the second contact inner wall (422) is between 12 mm and 25 mm.

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