A jig for automatic welding of terminals

The automatic terminal welding fixture with a combination of guide pin and limit block structure solves the problems of cumbersome operation and hole position deviation caused by manual plate changing and positioning, realizes automatic terminal positioning and efficient welding, and improves production efficiency and product quality.

CN224587349UActive Publication Date: 2026-08-04HEYUAN HAOJIDA COMM EQUIP CO LTD
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Patent Information

Application Number
CN202521812798.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-25
Publication Date
2026-08-04
Estimated Expiration
2035-08-25

AI Technical Summary

Technical Problem

Traditional terminal welding production lines rely on manual tray changing and positioning, which leads to cumbersome operation, low production efficiency, and easy occurrence of hole alignment deviations, resulting in defective products such as welding misalignment and incomplete welding.

Method used

Design a fixture for automatic terminal welding, which adopts a combination structure of guide pin and limit block. The guide pin realizes the terminal hole position adaptation and positioning, and the limit block realizes the alignment of the terminals on both sides by rotation and pressing. Multi-point limit ensures stability.

Benefits of technology

It achieves automatic terminal positioning, reduces manual intervention, avoids hole position deviation, reduces the risk of welding misalignment and incomplete welding, and improves production efficiency and product qualification rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of for terminal automatic welding's fixture, it is related to jig technical field, including welding fixture and the terminal body of being placed on the upper surface of welding fixture, the top of welding fixture is connected with mounting seat, rotatingly connected with limit block on the mounting seat, the limit block is used to press together terminal body to realize the alignment of both sides terminal body;The utility model is adapted to guide needle and terminal hole, without artificial alignment can complete positioning, avoid artificial operation deviation;Four limit blocks are pressed together from different positions, realize even pressure by rotating, make both sides terminal alignment, cooperate with the limit block of installation hole and enhance restraint, effectively prevent displacement when welding, greatly reduce welding misplacement, virtual welding and other defective products.
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Description

Technical Field

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

[0002] In the field of electronic component manufacturing, terminals are key basic components for realizing circuit connections. Their welding quality and production efficiency have a significant impact on the overall performance and production efficiency of electronic products. In the terminal production process, the welding process is the core link to ensure the reliability of terminal electrical connections.

[0003] In traditional terminal welding production lines, the welding operation after terminal injection molding relies on manual replacement of terminal plates. During the manual replacement process, operators need to manually disassemble the old terminal plate and install the new one. This process is not only cumbersome, but also difficult to control the replacement time. Furthermore, manual intervention can easily disrupt the production line's rhythm, limiting the improvement of production efficiency.

[0004] Meanwhile, manual tray changing and subsequent manual intervention in terminal positioning and welding preparation are prone to problems due to the uncertainty of human operation. During the terminal placement and positioning stage, relying on manual alignment of the terminal holes with the corresponding structure of the welding fixture is highly susceptible to misalignment due to the operator's experience. If the terminal holes do not match the fixture positioning structure, subsequent welding operations will directly produce defective products such as welding misalignment and incomplete welds, resulting in the ineffective consumption of materials.

[0005] To address these issues, we designed a fixture for automated terminal soldering. Utility Model Content

[0006] The purpose of this invention is to provide a fixture for automatic terminal welding, so as to solve the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, this utility model provides a fixture for automatic terminal welding, including a welding fixture and a terminal body placed on the upper surface of the welding fixture. The top of the welding fixture is connected to a mounting base, and a limiting block is rotatably connected to the mounting base. The limiting block is used to press the terminal body to achieve alignment of the two terminal bodies.

[0008] Furthermore, the welding fixture is provided with a plurality of guide pins for positioning the terminal body. The number and arrangement of the guide pins are adapted to the hole positions of the terminal body, so that the hole of the terminal body can be fitted over the guide pins to complete the positioning.

[0009] Furthermore, the mounting base has a mounting slot, and a connecting shaft is connected inside the mounting base. The limiting block is rotatably connected to the mounting slot through the connecting shaft.

[0010] Furthermore, there are four limiting blocks and four mounting slots, which are arranged sequentially along the length of the welding fixture.

[0011] Furthermore, the four limiting blocks can rotate about the axis of the connecting shaft to move closer to or away from the guide pin. When the limiting blocks move toward the guide pin, they can press the terminal body together and align the two terminal bodies.

[0012] Furthermore, among the four limiting blocks, two limiting blocks are provided with mounting holes, and the two limiting blocks with mounting holes are spaced apart from each other along the length direction of the welding fixture.

[0013] Furthermore, the connecting shaft is a cylindrical shaft, and the mounting slot is an elongated slot adapted to the cylindrical shaft.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The guide pin is compatible with the terminal hole, and positioning can be completed without manual alignment, avoiding human operation deviation; four limit blocks press and limit from different positions, and uniform pressure is achieved by rotation to align the terminals on both sides. The limit blocks with mounting holes enhance the constraint, effectively preventing displacement during welding and greatly reducing defects such as welding misalignment and incomplete welding.

[0016] 2. The guide pin enables rapid terminal positioning, and the limit block can complete the pressing and releasing by rotating around the connecting shaft, simplifying the operation process and reducing manual intervention time; no manual alignment and frequent adjustments are required, avoiding disruption of the production line rhythm due to manual operation. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the exterior of this utility model;

[0018] Figure 2 This is a top view of the present invention;

[0019] Figure 3 This is a schematic diagram of the connection structure between the terminal and the guide pin in this utility model;

[0020] Figure 4 This is a schematic diagram of the connection structure between the mounting base and the limiting block in this utility model.

[0021] In the diagram: 1. Welding fixture; 2. Terminal body; 3. Mounting base; 4. Limiting block; 5. Mounting slot; 6. Connecting shaft; 7. Guide pin; 8. Mounting hole. Detailed Implementation

[0022] 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.

[0023] See Figure 1-4 As shown, a fixture for automatic terminal welding includes a welding fixture 1 and a terminal body 2 placed on the upper surface of the welding fixture 1. A mounting base 3 is connected to the top of the welding fixture 1, and a limiting block 4 is rotatably connected to the mounting base 3. The limiting block 4 is used to press the terminal body 2 to achieve alignment of the two sides of the terminal body 2.

[0024] In practice, after the terminal body 2 is placed on the welding fixture 1, the limiting block 4 is rotated to bring it close to the terminal body 2 and press it against it. By using the constraint effect of the limiting block 4, the alignment of the two terminal bodies 2 can be forcibly achieved. This setting solves the problem of hole alignment deviation caused by experience differences during manual positioning, which can reduce the generation of defective products such as welding misalignment and incomplete welding, reduce the ineffective consumption of materials, and improve the product qualification rate.

[0025] See Figure 1-4 The welding fixture 1 is provided with a plurality of guide pins 7 for positioning the terminal body 2. The number and arrangement of the guide pins 7 are adapted to the hole positions of the terminal body 2, so that the hole of the terminal body 2 can be fitted over the guide pins 7 to complete the positioning.

[0026] In practice, during operation, the terminal body 2 is positioned by fitting the hole of the terminal body 2 onto the guide pin 7. This setting, through the hole adaptation design, enables rapid positioning of the terminal body 2 without the need for manual alignment, avoiding the uncertainty of human operation and ensuring the accuracy of terminal positioning.

[0027] See Figure 1-4 The mounting base 3 has a mounting slot 5, and a connecting shaft 6 is connected inside the mounting base 3. The limiting block 4 is rotatably connected to the mounting slot 5 through the connecting shaft 6.

[0028] In practice, the connecting shaft 6 provides a pivot point for the limiting block 4, enabling the limiting block 4 to rotate to press and release the terminal body 2. This setting helps to speed up the positioning process, thereby improving overall production efficiency.

[0029] See Figure 1-4 There are four limit blocks 4 and four mounting slots 5, which are arranged sequentially along the length of the welding fixture 1.

[0030] In practice, during operation, the four limiting blocks 4 press and limit the terminal body 2 from different positions. This multi-point limiting method ensures the alignment accuracy of the terminal body 2, is more stable than single-point limiting, and further reduces the risk of poor welding.

[0031] See Figure 1-4 The four limiting blocks 4 can rotate around the axis of the connecting shaft 6, moving closer to or away from the guide pin 7. When the limiting blocks 4 move toward the guide pin 7, they can press the terminal body 2 and align the two terminal bodies 2.

[0032] In practice, when the limiting block 4 moves toward the guide pin 7, it can press the terminal body 2 and align the two terminal bodies 2. This setting achieves uniform pressure on the terminal body 2 by rotating the limiting block 4, ensuring that the terminal body 2 maintains a stable alignment during the welding process.

[0033] See Figure 1-4 Of the four limiting blocks 4, two limiting blocks 4 have mounting holes 8, and the two limiting blocks 4 with mounting holes 8 are spaced apart from each other along the length of the welding fixture 1.

[0034] In practice, the mounting hole 8 can be used to install auxiliary positioning or fixing components, further enhancing the constraint effect on the terminal body 2. By increasing the fixing points, it can more effectively prevent the terminal body 2 from shifting during the welding process, ensuring the accuracy of the welding.

[0035] See Figure 1-4 The connecting shaft 6 is a cylindrical shaft, and the mounting slot 5 is a long strip groove adapted to the cylindrical shaft.

[0036] In practice, this setting facilitates the rotation of the limit block 4.

[0037] Working principle: The terminal body 2 is placed on the welding fixture 1. The terminal body 2 is positioned by fitting the hole of the terminal body 2 onto the guide pin 7 on the welding fixture 1. Since the number and arrangement of the guide pins 7 are adapted to the hole positions of the terminal body 2, no manual alignment is required, which ensures the accuracy of positioning.

[0038] Next, the four limiting blocks 4 can rotate around the axis of the connecting shaft 6, moving closer to the guide pin 7. When the limiting blocks 4 move towards the guide pin 7, they can press the terminal body 2. The four limiting blocks 4, arranged sequentially along the length of the welding fixture 1, press and limit the terminal body 2 from different positions. The constraint of the limiting blocks 4 forces the alignment of the terminal bodies 2 on both sides. By rotating the limiting blocks 4, uniform pressure is applied to the terminal body 2, ensuring that the terminal body 2 maintains a stable alignment during the welding process.

[0039] In addition, among the four limiting blocks 4, two of the limiting blocks 4, which are spaced apart from each other along the length of the welding fixture 1, are provided with mounting holes 8. Auxiliary positioning or fixing components can be installed through the mounting holes 8 to further enhance the constraint effect on the terminal body 2, and more effectively prevent the terminal body 2 from shifting during the welding process, thus ensuring the accuracy of the welding.

[0040] After welding is completed, rotate the limiting block 4 to move away from the guide pin 7, release the pressure on the terminal body 2, and then remove the welded terminal body 2 from the welding fixture 1.

Claims

1. A jig for automatic welding of a terminal, comprising a welding jig (1) and a terminal body (2) placed on the upper surface of the welding jig (1), characterized in that, The top of the welding fixture (1) is connected to a mounting base (3), and a limiting block (4) is rotatably connected to the mounting base (3). The limiting block (4) is used to press the terminal body (2) to achieve alignment of the two terminal bodies (2).

2. The jig for automatic welding of terminals according to claim 1, wherein: The welding fixture (1) is provided with a plurality of guide pins (7) for positioning the terminal body (2). The number and arrangement of the guide pins (7) are adapted to the hole positions of the terminal body (2), so that the hole of the terminal body (2) can be fitted outside the guide pins (7) to complete the positioning.

3. The fixture for automatic welding of terminals according to claim 1, wherein: The mounting base (3) has a mounting slot (5), and a connecting shaft (6) is connected inside the mounting base (3). The limiting block (4) is rotatably connected to the mounting slot (5) through the connecting shaft (6).

4. The fixture for automatic welding of terminals according to claim 3, wherein: The number of the limiting blocks (4) and the mounting slots (5) are both four, and they are arranged sequentially along the length of the welding fixture (1).

5. The fixture for automatic welding of terminals according to claim 2, wherein: The four limiting blocks (4) can rotate about the axis of the connecting shaft (6) to move closer to or away from the guide pin (7), wherein, When the limiting block (4) moves toward the guide pin (7), it can press the terminal body (2) and align the two terminal bodies (2) on both sides.

6. The fixture for automatic welding of terminals according to claim 1, wherein: Of the four limiting blocks (4), two limiting blocks (4) have mounting holes (8) and the two limiting blocks (4) with mounting holes (8) are spaced apart from each other along the length of the welding fixture (1).

7. The fixture for automatic welding of terminals according to claim 3, wherein: The connecting shaft (6) is a cylindrical shaft, and the mounting slot (5) is a long strip groove adapted to the cylindrical shaft.