A welding fixture

Abstract

The utility model discloses a kind of welding tool, including main body and fixed mechanism, main body is formed with at least one welding auxiliary hole, welding auxiliary hole is corresponding with welding point, to make at least part arc-shaped inner wall of welding auxiliary hole and welding head abut, welding head aligns welding point;Multiple fixed mechanisms are set on main body, to fix the workpiece being welded.Compared with prior art, the welding tool provided by the utility model has welding auxiliary hole, welding head abuts the inner wall of welding auxiliary hole when welding, the welding auxiliary hole can limit and guide welding head, make welding head align welding point, ensure welding quality.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, and specifically to a welding fixture. Background Technology

[0002] Many automotive parts consist of two or more components that often require welding. Because each part is a non-standard component adapted to different car models, existing automated welding equipment struggles to accommodate the diverse range of automotive parts. In actual production, manual welding is often necessary, leading to inaccurate welds and compromised weld quality. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a welding fixture to solve the technical problems of inaccurate welding positions and unreliable welding quality during manual welding in the prior art.

[0004] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0005] This utility model provides a welding fixture, including: a main body and a fixing mechanism. The main body has at least one welding auxiliary hole, which corresponds to the welding point, so that when at least a portion of the arc-shaped inner wall of the welding auxiliary hole is in contact with the welding head, the welding head is aligned with the welding point. A plurality of the fixing mechanisms are disposed on the main body for fixing the workpiece to be welded.

[0006] In some embodiments, the welding auxiliary hole is a circular hole with its center coinciding with the welding point, and the inner diameter of the welding auxiliary hole matches the outer diameter of the welding head.

[0007] In some embodiments, the welding auxiliary hole is an oblong hole, with each end of the welding auxiliary hole corresponding to a welding point, and the center of the arc at each end of the hole coinciding with the corresponding welding point.

[0008] In some embodiments, the welding auxiliary hole is a rounded polygon, with each rounded corner corresponding to a welding point, and the center of each rounded corner coincides with the corresponding welding point.

[0009] In some embodiments, at least some of the welding auxiliary holes are oriented in different directions.

[0010] In some embodiments, the body further comprises at least one positioning portion, which protrudes or is recessed in its plane.

[0011] In some embodiments, the fixing mechanism includes a base, a connecting rod, a clamping head, and an elastic element. The base is fixedly connected to the main body, the middle part of the connecting rod is rotatably connected to the main body, one end of the connecting rod is fixedly connected to the clamping head, and the elastic element connects the connecting rod and the base. The elastic element can generate elastic force to drive the clamping head toward the main body so that the clamping head and the main body cooperate to clamp the workpiece.

[0012] In some embodiments, the fixing mechanism further includes a protective sleeve fitted over the end of the clamping head facing the body, the protective sleeve being elastic.

[0013] In some embodiments, the connecting rod includes a first part, a second part, and a third part. One end of the first part has a first connection point, and the other end has a second connection point and a third connection point. The first part is connected to the clamping head through the first connection point and is rotatably connected to the base through the second connection point. One end of the second part is rotatably connected to the third connection point, the middle part of the second part is rotatably connected to one end of the third part, and the other end of the third part is rotatably connected to the base.

[0014] In some embodiments, the distance between the first connection point and the second connection point is equal to the distance between the first connection point and the third connection point.

[0015] Compared with the prior art, the welding fixture provided by this utility model has a welding auxiliary hole. During welding, the welding head is attached to the inner wall of the welding auxiliary hole. The welding auxiliary hole can limit and guide the welding head, so that the welding head is aligned with the welding point and the welding quality is ensured. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the welding fixture provided in an embodiment of the present invention;

[0017] Figure 2 These are schematic diagrams of the welding auxiliary holes in some embodiments;

[0018] Figure 3 These are schematic diagrams of the welding auxiliary holes in other embodiments;

[0019] Figure 4 These are schematic diagrams of the welding auxiliary holes in other embodiments;

[0020] Figure 5 yes Figure 1 A schematic diagram of the fixed mechanism. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] To address the technical problem of inaccurate welding positions and compromised welding quality during manual welding, this invention provides a welding fixture that can limit and guide the welding head during welding, ensuring that the welding head is aligned with the welding point and guaranteeing welding quality.

[0023] Please see Figure 1 , Figure 1 This is a schematic diagram of the welding fixture in one embodiment of the present invention.

[0024] This welding fixture includes a main body 1 and fixing mechanisms 2. The main body 1 has at least one welding auxiliary hole 11, which corresponds to the welding point, such that during welding, at least a portion of the arc-shaped inner wall of the welding auxiliary hole 11 abuts against the welding head 3, at which point the welding head 3 is aligned with the welding point. The welding auxiliary hole serves to limit and guide the welding process. Multiple fixing mechanisms 2 are disposed on the main body 1 to fix the workpiece to be welded.

[0025] The main body 1 serves as a connector and load-bearing structure, used to install and fix the mechanism 2 and place the workpiece. The main body 1 can be a one-piece molded structure or it can be composed of plates, rods, etc.

[0026] Please see Figure 2 In some embodiments, the first welding auxiliary hole 11a is a circular hole with its center coinciding with the welding point 12a, and the inner diameter of the first welding auxiliary hole 11a matches the outer diameter of the welding head 3. It is easy to understand that in these embodiments, each first welding auxiliary hole 11a corresponds to a welding position. During welding, the welding head 3 of the welding equipment is inserted into the first welding auxiliary hole 11a, thus aligning the welding head 3 with the welding point 12a.

[0027] Please see Figure 3In some embodiments, the second welding auxiliary hole 11b is an oblong hole, with each end of the second welding auxiliary hole 11b corresponding to two welding points 12b. The centers of the arcs at both ends of the second welding auxiliary hole 11b coincide with the corresponding welding points 12b, and the inner diameter of the arcs matches the outer diameter of the welding head 3. It is easy to understand that in these embodiments, during welding, the welding head 3 of the welding equipment is inserted into the second welding auxiliary hole 11b and moved to one end of the second welding auxiliary hole 11b, pressing against the inner wall of the second welding auxiliary hole 11b. At this time, the welding head 3 is aligned with one welding point 12b. After welding this welding point 12b, the welding head 3 is moved to the other end of the second welding auxiliary hole 11b and pressed against the inner wall of the second welding auxiliary hole 11b to weld the other welding point 12b, thus completing the welding of the two welding points.

[0028] Please see Figure 4 In other embodiments, the third welding auxiliary hole 11c is a rounded polygon, with each rounded corner corresponding to a welding point 12c, and the center of each rounded corner coincides with the corresponding welding point 12c. The inner diameter of the rounded corner matches the outer diameter of the welding head 3. Similar to the second welding auxiliary hole 11b, during welding, the welding head 3 is inserted into the third welding auxiliary hole 11c and moved sequentially to each rounded corner, fitting against the inner wall of that rounded corner to weld the welding point 12c there, until all welding work is completed. Figure 4 In the middle, the third welding auxiliary hole 11c is a rounded triangle, which is easy to understand. Depending on the welding requirements, the third welding auxiliary hole 11c can also be a rounded quadrilateral, a rounded pentagon, a rounded hexagon, or other structures.

[0029] The main body 1 has one or more of a first welding auxiliary hole 11a, a second welding auxiliary hole 11b, and a third welding auxiliary hole 11c, and at least some of the welding auxiliary holes 11 are oriented in different directions to accommodate welding needs in different directions.

[0030] In some embodiments, the body 1 further comprises at least one positioning portion 13, which protrudes or is recessed in its plane. The positioning portion 13 may be one or more of a rod, a protrusion, a groove, or a hole.

[0031] Please see Figure 5 , Figure 5 yes Figure 1A schematic diagram of the fixing mechanism 2. The fixing mechanism 2 is used to fix the workpiece. In some embodiments, the fixing mechanism 2 includes a base 21, a connecting rod 22, a clamping head 23, and an elastic element. The base 21 is fixedly connected to the main body 1, the middle part of the connecting rod 22 is rotatably connected to the main body 21, and one end of the connecting rod 22 is fixedly connected to the clamping head 23. The elastic element connects the connecting rod 22 and the base 21. The elastic element can generate elastic force to drive the clamping head 23 toward the main body 1 so that the clamping head 23 and the main body 1 cooperate to clamp the workpiece.

[0032] The elastic element can be a torsion spring, sleeved at the rotatable connection between the connecting rod 22 and the base 21. Pressing the end of the connecting rod 22 away from the clamping head 23 causes the connecting rod 22 to rotate around the base 21, thus separating the clamping head 23 from the main body 1. After placing the workpiece between the clamping head 23 and the main body 1, releasing the pressure on the connecting rod 22 allows the clamping head 23 to clamp the workpiece under the action of the elastic element.

[0033] In some embodiments, the fixing mechanism 2 further includes a protective sleeve 24, which is fitted onto the end of the clamping head 23 facing the main body 1. The protective sleeve 24 is elastic and may be made of rubber. The protective sleeve 24 can distribute the pressure of the clamping head 23 on the workpiece, preventing the workpiece from being crushed by the clamping head 23.

[0034] In some embodiments, the connecting rod 22 includes a first portion 221, a second portion 222, and a third portion 223. One end of the first portion 221 has a first connection point 221a, and the other end has a second connection point 221b and a third connection point 221c. The first portion 221 is connected to the clamping head 23 via the first connection point 221a, and is rotatably connected to the base 21 via the second connection point 221b. One end of the second portion 222 is rotatably connected to the third connection point 221c, the middle portion of the second portion 222 is rotatably connected to one end of the third portion 223, and the other end of the third portion 223 is rotatably connected to the base 21.

[0035] Preferably, the distance between the first connection point 221a and the second connection point 221b is equal to the distance between the first connection point 221a and the third connection point 221c. That is, the first connection point 221a, the second connection point 221b, and the third connection point 221c form an isosceles triangle. This structure saves the operator effort and allows for better workpiece clamping.

[0036] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A welding fixture, characterized in that, include: The main body has at least one welding auxiliary hole, which corresponds to the welding point, such that when at least a portion of the arc-shaped inner wall of the welding auxiliary hole is in contact with the welding head, the welding head is aligned with the welding point. A fixing mechanism, wherein multiple fixing mechanisms are disposed on the main body, for fixing the workpiece to be welded.

2. The welding fixture according to claim 1, characterized in that, The welding auxiliary hole is a circular hole with its center coinciding with the welding point, and the inner diameter of the welding auxiliary hole matches the outer diameter of the welding head.

3. The welding fixture according to claim 1, characterized in that, The welding auxiliary hole is an oblong hole, with each end of the welding auxiliary hole corresponding to a welding point, and the center of the arc at each end of the hole coincides with the corresponding welding point.

4. The welding fixture according to claim 1, characterized in that, The welding auxiliary hole is a rounded polygon, with each rounded corner corresponding to a welding point, and the center of each rounded corner coincides with the corresponding welding point.

5. The welding fixture according to claim 1, characterized in that, At least some of the welding auxiliary holes are oriented in different directions.

6. The welding fixture according to claim 1, characterized in that, The main body also has at least one positioning part, which protrudes or is recessed in its plane.

7. The welding fixture according to claim 1, characterized in that, The fixing mechanism includes a base, a connecting rod, a clamping head, and an elastic element. The base is fixedly connected to the main body, the middle part of the connecting rod is rotatably connected to the main body, one end of the connecting rod is fixedly connected to the clamping head, and the elastic element connects the connecting rod and the base. The elastic element can generate elastic force to drive the clamping head toward the main body so that the clamping head and the main body cooperate to clamp the workpiece.

8. The welding fixture according to claim 7, characterized in that, The fixing mechanism also includes a protective sleeve, which is fitted onto the end of the clamping head facing the main body, and the protective sleeve is elastic.

9. The welding fixture according to claim 7, characterized in that, The connecting rod includes a first part, a second part, and a third part. One end of the first part has a first connection point, and the other end has a second connection point and a third connection point. It is connected to the clamping head through the first connection point and rotatably connected to the base through the second connection point. One end of the second part is rotatably connected to the third connection point, the middle part of the second part is rotatably connected to one end of the third part, and the other end of the third part is rotatably connected to the base.

10. The welding fixture according to claim 9, characterized in that, The distance between the first connection point and the second connection point is equal to the distance between the first connection point and the third connection point.

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