A jig for welding L-shaped spring pieces

Abstract

The utility model discloses a kind of jigs for welding L-shaped shell, it includes placing table, one / multiple bearing column being arranged on placing table, and workpiece being inserted in the top of bearing column, workpiece is divided into mutually nested inner tube and outer tube;Bearing column top is equipped with the positioning part with positioning member, and bearing column surface is equipped with avoidance site, avoidance site is located in the side of positioning member;When inner tube and outer tube are sleeved on bearing column, the welding point between inner tube and outer tube and avoidance site position correspond.The welding point on outer tube and inner tube correspond, so that inner tube and outer tube are welded, due to the design of avoidance site, heat-affected zone and solder generated by welding do not contact with bearing column, thereby effectively avoid the phenomenon that inner tube and outer tube and bearing column are adhered after welding, guarantee welding quality and workpiece integrity.

Description

Technical Field

[0001] This utility model relates to the field of jigs, and in particular to a jig for welding L-shaped spring pieces. Background Technology

[0002] A stylus is a precision input tool designed specifically for touchscreen devices such as smartphones and tablets. It achieves human-computer interaction by simulating finger touch, but has significant advantages over finger operation: higher input accuracy, more refined control experience, and richer support for professional functions.

[0003] The core components of a stylus consist of circuit boards, batteries, and other components, which are typically integrated within a D-shaped tube support. The traditional manufacturing process for this support involves three key steps: first, welding metal sheets into a tubular prototype; then, shaping it into a D-shaped cross-section using a tube-drawing process; and finally, using laser cutting to create the pre-designed functional hole structure.

[0004] In the subsequent assembly stage, the D-shaped tube support needs to be welded to the L-shaped spring clips for fixing. The current process has obvious defects: during operation, the L-shaped spring clips are first placed in a special fixture, and then the D-shaped tube supports are stacked before welding. Because the fixture lacks an effective positioning and limiting structure, problems such as component misalignment or displacement under welding head pressure frequently occur during production.

[0005] like Figure 1 As shown in the prior art, to address this process defect, some manufacturers have attempted to add positioning protrusions 100 to the fixture to fix the L-shaped spring and the D-shaped tube support by insertion. However, this solution introduces new problems: the high temperature of welding causes the metal components to stick to the fixture, seriously affecting production efficiency and product yield. Utility Model Content

[0006] In view of this, the present invention addresses the deficiencies of the existing technology and its main purpose is to provide a fixture for welding L-shaped spring pieces, which solves the problem that the high temperature during welding causes the metal components to stick to the fixture, seriously affecting production efficiency and product yield.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a fixture for welding L-shaped spring clips, comprising a placement platform, one or more support columns disposed on the placement platform, and a workpiece inserted into the top of the support column, the workpiece being divided into an inner tube and an outer tube nested together; the top of the support column is provided with a positioning part with a positioning element, and the surface of the support column is provided with a clearance position located beside the positioning element; when the inner tube and the outer tube are sleeved on the support column, the welding point between the inner tube and the outer tube corresponds to the position of the clearance position.

[0008] Furthermore, there are no fewer than two clearance positions, which are located on two opposite sides of the positioning component.

[0009] Furthermore, the positioning part includes a boss on the upper end face of the bearing column, the positioning element has a side with the boss, and the inner tube is sleeved on the boss.

[0010] Furthermore, the inner tube comprises an L-shaped workpiece consisting of a first part and a second part. The upper end of the first part is provided with a socket for a connecting boss, and the second part is attached to the support column.

[0011] Furthermore, the second part is plate-like.

[0012] Furthermore, the side of the bearing column away from the clearance position is provided with a planar cut, and the outer tube is provided with a horizontal part adapted to the planar cut.

[0013] Furthermore, the clearance space and the planar cut are positioned opposite each other on both sides of the load-bearing column.

[0014] Furthermore, a rib is provided on one side of the boss, and a limiting groove adapted to the rib is provided on the socket.

[0015] Furthermore, the boss is compatible with the socket, and the bearing column is compatible with the outer tube.

[0016] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, the operator first takes the inner tube and accurately places it on the positioning part. During this process, the inner tube needs to be based on the positioning part to ensure that its welding points correspond to the avoidance position. After the inner tube is stably fixed, the operator then takes the outer tube and sleeves it on the outside of the inner tube along the axial direction. When sleeved, it is necessary to ensure that the welding points on the outer tube and the inner tube correspond. Due to the avoidance position design, the heat-affected zone and solder generated by the welding will not come into contact with the bearing column during the welding of the inner and outer tubes. This effectively avoids the phenomenon of the outer tube and inner tube sticking to the bearing column after welding, ensuring the welding quality and the integrity of the workpiece.

[0017] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0018] Figure 1 This is a diagram illustrating existing technology.

[0019] Figure 2 This is a perspective view of Embodiment 1 of this utility model.

[0020] Figure 3 This is Embodiment 1 of the present utility model. Figure 2 Enlarged view of point A.

[0021] Figure 4This is a rear view of the placement platform of Embodiment 1 of this utility model.

[0022] Figure 5 This is a diagram showing the workpiece of Embodiment 1 of this utility model.

[0023] Explanation of reference numerals in the attached diagram:

[0024] Placement platform 10;

[0025] 20 bearing column, 21 positioning part, 211 positioning component, 212 boss, 2121 protruding rib, 22 clearance position, 23 planar cut;

[0026] Workpiece 30, inner tube 31, first part 311, socket 3111, limiting groove 3112, second part 312, outer tube 32, horizontal part 321, weld point 33. Detailed Implementation

[0027] Please refer to Figure 2-5 As shown, it illustrates the specific structure of a preferred first embodiment of the present invention, which is a fixture for welding L-shaped spring clips. It includes a placement platform 10, one or more support columns 20 disposed on the placement platform 10, and a workpiece 30 inserted into the top of the support column 20. The workpiece 30 is divided into an inner tube 31 and an outer tube 32 nested together. The top of the support column 20 is provided with a positioning part 21 with a positioning element 211, and the surface of the support column 20 is provided with a clearance position 22, which is located next to the positioning element. When the inner tube 31 and the outer tube 32 are sleeved on the support column 20, the weld point 33 between the inner tube 31 and the outer tube 32 corresponds to the position of the clearance position 22. The operator first takes the inner tube 31 and precisely places it on the positioning part 21. During this process, the inner tube 31 must be based on the positioning part 211 to ensure that its weld point 33 corresponds to the clearance position 22. After the inner tube 31 is stably fixed, the operator takes the outer tube 32 and sleeves it on the outside of the inner tube 31 along the axial direction. When sleeved, it must be ensured that the weld points 33 on the outer tube 32 and the inner tube 31 correspond. Due to the design of the clearance position 22, the heat-affected zone and the solder generated by the welding will not come into contact with the support column 20 during the welding of the inner tube 31 and the outer tube 32. This effectively avoids the phenomenon of the outer tube 32 and the inner tube 31 sticking to the support column 20 after welding, thus ensuring the welding quality and the integrity of the workpiece.

[0028] For example, there are at least two clearance positions 22, which are located on two opposite sides of the positioning member 211. To ensure the stability of the inner tube 31 and the outer tube 32 after welding, welding must be performed on at least two opposite sides of the connection between the inner tube 31 and the outer tube 32 to ensure the stability of the workpiece 30 formed after welding.

[0029] For example, the positioning part 21 includes a boss 212 on the upper end face of the supporting column 20, the positioning member 211 has a side with the boss 212, and the inner tube 31 is sleeved on the boss 212. In the actual assembly process, the inner tube 31 is first sleeved on the boss 212, which provides reliable axial support for the inner tube 31 and ensures that it remains stable during the welding process; in addition, the boss can ensure that when the outer tube 32 is sleeved on the supporting column 20, the upper end face of the inner tube 31 is parallel to the upper end face of the outer tube 32.

[0030] The inner tube 31 is an L-shaped workpiece consisting of a first part 311 and a second part 312. The upper end of the first part 311 is provided with a socket 3111 for attaching the boss 212, and the second part 312 is attached to the support column 20.

[0031] Part 312 is plate-like.

[0032] For example, the supporting column 20 has a planar cutout 23 on the side away from the clearance position 22, and the outer tube 32 has a horizontal portion 321 adapted to the planar cutout 23. The cooperation between the planar cutout 23 and the horizontal portion 321 forms a reliable anti-rotation mechanism, which completely eliminates the possibility of circumferential rotation of the outer tube 32 after assembly through surface contact; secondly, this design provides a clear guiding reference during assembly, enabling the outer tube 32 to be quickly and accurately positioned to the predetermined position.

[0033] The clearance 22 and the planar cut 23 are positioned opposite each other on both sides of the bearing column 20.

[0034] The boss 212 has a rib 2121 on one side, and the socket 3111 has a limiting groove 3112 that is adapted to the rib 2121.

[0035] The boss 212 is adapted to the socket 3111, and the bearing column 20 is adapted to the outer tube 32.

[0036] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A fixture for welding L-shaped spring clips, comprising a placement table (10), one or more support columns (20) disposed on the placement table (10), and a workpiece (30) inserted into the top of the support column (20), characterized in that: The workpiece (30) is divided into an inner tube (31) and an outer tube (32) nested together; the top of the support column (20) is provided with a positioning part (21) with a positioning element (211), and the surface of the support column (20) is provided with a clearance position (22), which is located next to the positioning element; when the inner tube (31) and the outer tube (32) are sleeved on the support column (20), the weld point (33) between the inner tube (31) and the outer tube (32) corresponds to the position of the clearance position (22).

2. The fixture for welding L-shaped spring clips according to claim 1, characterized in that: There are at least two clearance positions (22), which are located on two opposite sides of the positioning member (211).

3. A fixture for welding L-shaped spring clips according to claim 1, characterized in that: The positioning part (21) includes a boss (212) on the upper end face of the bearing column (20), the positioning member (211) is provided with the boss (212) on one side, and the inner tube (31) is sleeved on the boss (212).

4. A fixture for welding L-shaped spring clips according to claim 3, characterized in that: The inner tube (31) comprises an L-shaped workpiece consisting of a first part (311) and a second part (312). The upper end of the first part (311) is provided with a socket (3111) for a sleeve boss (212), and the second part (312) is attached to the support column (20).

5. A fixture for welding L-shaped spring clips according to claim 4, characterized in that: The second part (312) is plate-shaped.

6. A fixture for welding L-shaped spring clips according to claim 4, characterized in that: The supporting column (20) has a planar cut (23) on the side away from the clearance position (22), and the outer tube (32) has a horizontal part (321) adapted to the planar cut (23).

7. A fixture for welding L-shaped spring clips according to claim 6, characterized in that: The clearance (22) and the planar cut (23) are arranged opposite to each other on both sides of the bearing column (20).

8. A fixture for welding L-shaped spring clips according to claim 4, characterized in that: The boss (212) has a rib (2121) on one side, and the socket (3111) has a limiting groove (3112) adapted to the rib (2121).

9. A fixture for welding L-shaped spring clips according to claim 4, characterized in that: The boss (212) is adapted to the socket (3111), and the bearing post (20) is adapted to the outer tube (32).

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