Production and machining spot welding equipment for electromagnetic pin puller

By employing a spot welding equipment with a positioning mechanism and elastic clamping components in the production and processing of electromagnetic pin pullers, the problem of weak welding between the coil and the electrical interface was solved, achieving efficient and stable welding results.

CN224143789UActive Publication Date: 2026-04-21XIANYANG ZHONGXIN ELECTROMECHANICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIANYANG ZHONGXIN ELECTROMECHANICAL TECH CO LTD
Filing Date
2025-05-15
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In the prior art, it is difficult to accurately control the welding position and time when welding the coil of the electromagnetic pin puller to the electrical interface, resulting in weak welding and potential damage to the coil, and there is a lack of quick fixing device.

Method used

A spot welding device including a positioning mechanism and an elastic clamping component was designed. The device uses a contoured V-groove and a positioning pin to quickly position the coil, and a hydraulic cylinder and an elastic component to ensure stable clamping of the coil. Combined with a miniature wave soldering nozzle, it achieves high-precision welding.

Benefits of technology

It achieves accurate welding of the coil to the electrical interface, improves positioning stability and welding efficiency, prevents coil deformation, and ensures welding quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses production and processing spot welding equipment for an electromagnetic pin puller, which comprises a spot welding table, a base is arranged at the top end of the spot welding table, and a positioning mechanism for positioning a coil is arranged at the top end of the base; the positioning mechanism comprises a positioning seat arranged at the top end of the base, a profiling V-shaped groove is formed in the top end of the positioning seat, and one end in the profiling V-shaped groove is connected with a conical positioning pin through an adjusting assembly; when the coil is positioned and clamped, the coil is firstly arranged in the profiling V-shaped groove, and one end of the coil is sleeved from the conical part of the positioning pin, so that the situation that the coil horizontally moves during spot welding is avoided, the coil can be quickly positioned, and the positioning stability of the coil is also improved; the spot welding accuracy of the coil of the electromagnetic pin puller and the electrical interface is ensured, the output shaft of the hydraulic cylinder enables the auxiliary pressing plate to move downwards to press the coil through the elastic assembly, and the design of the elastic assembly can not only assist in pressing the coil, but also prevent the coil from being pressed and deformed.
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Description

Technical Field

[0001] This utility model relates to the field of electromagnetic pin pulling device manufacturing and processing technology, specifically to a spot welding equipment for electromagnetic pin pulling device manufacturing and processing. Background Technology

[0002] Soldering the coil of the electromagnetic pin puller to the electrical interface requires precise control of the soldering position and time to ensure a strong solder joint without affecting electrical performance. Automated equipment (spray soldering furnace) and positioning fixtures are needed to ensure soldering consistency and improve efficiency. Controlling the time prevents cold solder joints and overheating.

[0003] The coil of the electromagnetic pin puller is a thin-walled structure with precise dimensions. However, when welding the coil to the electrical interface, it is not convenient to fix the coil quickly, and it may also damage the coil. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a spot welding equipment for the production and processing of electromagnetic pin pullers.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model discloses a spot welding device for the production and processing of an electromagnetic pin puller, comprising a spot welding table, a base at the top of the spot welding table, and a positioning mechanism for positioning the coil at the top of the base; the positioning mechanism includes a positioning seat at the top of the base, the top of the positioning seat having a contoured V-groove, one end of the contoured V-groove being connected to a conical positioning pin via an adjusting component, one end of the positioning pin being conical, and an elastic clamping component located above the positioning seat at the top of the base; the elastic clamping component includes a U-shaped bracket at the top of the base, a vertically downward hydraulic cylinder mounted in the middle of the bracket, and an arc-shaped auxiliary pressure plate connected to the bottom of the hydraulic cylinder via an elastic component.

[0007] As a preferred embodiment of this utility model, the elastic component includes a guide lifting plate disposed on the output shaft of the hydraulic cylinder, a connecting plate disposed at the bottom center of the guide lifting plate, and a connecting sleeve plate connected to the bottom end of the connecting plate.

[0008] As a preferred embodiment of this utility model, the connecting sleeve is provided with multiple return springs inside, and the bottom end of the connecting sleeve is connected to the middle part of the auxiliary pressure plate.

[0009] As a preferred embodiment of this utility model, both ends of the connecting plate are provided with guide sleeves that are fitted onto the bracket.

[0010] As a preferred embodiment of this utility model, a miniature wave soldering nozzle is installed on one side of the top of the base, and the miniature wave soldering nozzle is connected to an external solder pot.

[0011] As a preferred technical solution of this utility model, the inner surface of the contoured V-groove of the base is provided with a plurality of compressed air blowing holes.

[0012] As a preferred embodiment of this invention, the base is made of alumina ceramic.

[0013] As a preferred embodiment of this utility model, the adjustment component includes a fixed block disposed at one end of the conformal V-groove, an adjustment screw threadedly connected to the fixed block, and the inner end of the adjustment screw being connected to one end of the positioning pin via a bearing.

[0014] As a preferred embodiment of this utility model, the outer end of the adjusting screw is provided with a rotating wheel, and the end of the positioning pin near the adjusting screw is provided with a guide slider that matches the inner wall of the V-shaped groove.

[0015] The beneficial effects of this utility model are:

[0016] This type of electromagnetic pin puller uses spot welding equipment in production and processing. When positioning and clamping the coil, the coil is first placed inside the conformal V-groove, and one end of the coil is inserted through the conical part of the positioning pin. This avoids the horizontal movement of the coil during spot welding, which can quickly position the coil and improve the positioning stability of the coil. This ensures the accuracy of spot welding between the electromagnetic pin puller coil and the electrical interface. The output shaft of the hydraulic cylinder causes the auxiliary pressure plate to move downward through the elastic component to press the coil. The design of the elastic component can both assist in pressing the coil and prevent the coil from deforming under pressure. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of a spot welding equipment for the production and processing of an electromagnetic pin puller according to this utility model;

[0019] Figure 2 This is a schematic diagram of the elastic clamping component structure of a spot welding equipment for producing an electromagnetic pin puller according to this utility model.

[0020] Figure 3 This is a cross-sectional view of the elastic component structure of a spot welding equipment for producing and processing an electromagnetic pin puller according to this utility model.

[0021] Figure 4This is a schematic diagram of the adjustment component and positioning pin connection structure of a spot welding equipment for electromagnetic pin puller production and processing according to this utility model.

[0022] In the diagram: 1. Spot welding station; 2. Base; 3. Positioning mechanism; 4. Positioning seat; 5. Contour V-groove; 6. Adjustment component; 7. Positioning pin; 8. Elastic clamping component; 9. Bracket; 10. Hydraulic cylinder; 11. Elastic component; 12. Auxiliary pressure plate; 13. Guide lifting plate; 14. Connecting plate; 15. Connecting sleeve; 16. Return spring; 17. Guide sleeve; 18. Miniature wave soldering nozzle; 19. Compressed air blowing hole; 20. Fixing block; 21. Adjusting screw; 22. Guide slider. Detailed Implementation

[0023] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0024] Example: Figure 1 and Figure 2 As shown, this utility model discloses a spot welding device for producing an electromagnetic pin puller, comprising a spot welding station 1, a base 2 at the top of the spot welding station 1, and a positioning mechanism 3 for positioning the coil at the top of the base 2; the positioning mechanism 3 includes a positioning seat 4 at the top of the base 2, the top of the positioning seat 4 having a contoured V-groove 5, one end of which is connected to a conical positioning pin 7 via an adjusting component 6, one end of the positioning pin 7 being conical; an elastic pressing component 8 located above the positioning seat 4 at the top of the base 2; the elastic pressing component 8 includes a U-shaped bracket 9 at the top of the base 2, with a vertical [unclear] mounted in the middle of the bracket 9. The downward-facing hydraulic cylinder 10 has an arc-shaped auxiliary pressure plate 12 connected to its bottom end via an elastic component 11. When positioning and clamping the coil, the coil is first placed inside the contoured V-groove 5, and one end of the coil is inserted through the cone of the positioning pin 7. This avoids horizontal movement of the coil during spot welding, which can quickly position the coil and improve the positioning stability of the coil. This ensures the accuracy of spot welding between the coil of the electromagnetic pin puller and the electrical interface. The output shaft of the hydraulic cylinder 10 causes the auxiliary pressure plate 12 to move downward through the elastic component 11 to press the coil. The design of the elastic component 11 can both assist in pressing the coil and prevent the coil from deforming under pressure.

[0025] Specifically, such as Figure 2 and Figure 3As shown, the elastic component 11 includes a guide lifting plate 13 disposed on the output shaft of the hydraulic cylinder 10. A connecting plate 14 is provided at the bottom center of the guide lifting plate 13. A connecting sleeve plate 15 is connected to the bottom end of the connecting plate 14. Multiple return springs 16 are provided inside the connecting sleeve plate 15. The bottom end of the connecting sleeve plate 15 is connected to the middle of the auxiliary pressure plate 12. After the auxiliary pressure plate 12 abuts against the coil, the return springs 16 are compressed, which can prevent the coil from being deformed by pressure.

[0026] The connecting plate 14 has guide sleeves 17 fitted on the bracket 9 at both ends, which improves the stability of the auxiliary pressure plate 12 in its up and down movement.

[0027] Specifically, such as Figure 1 As shown, a miniature wave soldering nozzle 18 is installed on one side of the top of the base 2. (The miniature wave soldering nozzle 18 is installed on one side of the base 2 according to the actual use process, and needs to avoid the movement path of the bracket 9, hydraulic cylinder 10 and auxiliary pressure plate 12). The miniature wave soldering nozzle 18 is connected to an external solder pot and can cover the junction of the coil and electrical interface of the electromagnetic pin puller, that is, cover the welding area. It has both the original spot welding function and can realize high-precision wave soldering. It is suitable for the mass and efficient production of electromagnetic pin puller coils. The miniature wave soldering nozzle 18 sprays solder to complete the welding.

[0028] The base 2 has multiple compressed air blowing holes 19 on its inner surface of the V-shaped groove 5 to remove residual welding slag after welding.

[0029] The base 2 is made of alumina ceramic, which has low thermal conductivity to isolate the heat from the welding area and conduct it to the thin wall of the coil.

[0030] Specifically, such as Figure 4 As shown, the adjustment assembly 6 includes a fixed block 20 located at one end of the conformal V-groove 5. An adjustment screw 21 is threadedly connected to the fixed block 20. The inner end of the adjustment screw 21 is connected to one end of the positioning pin 7 via a bearing. The outer end of the adjustment screw 21 is provided with a rotating wheel. The end of the positioning pin 7 near the adjustment screw 21 is provided with a guide slider 22 that matches the inner wall of the conformal V-groove 5. When adjusting the position of the positioning pin 7, the rotating wheel is rotated, which drives the adjustment screw 21 to rotate. The adjustment screw 21 is threadedly connected to the fixed block 20. Because the guide slider 22 matches the inner wall of the conformal V-groove 5, the positioning pin 7 moves along the conformal V-groove 5, thus positioning the pin 7 and allowing it to be used with coils of different specifications.

[0031] During operation, this electromagnetic pin puller uses a spot welding production and processing equipment. When positioning and clamping the coil, the coil is first placed inside the conformal V-groove 5, and one end of the coil is inserted through the cone of the positioning pin 7. This avoids the horizontal movement of the coil during spot welding, which can quickly position the coil and improve the positioning stability of the coil. This ensures the accuracy of spot welding between the electromagnetic pin puller coil and the electrical interface. The output shaft of the hydraulic cylinder 10 causes the auxiliary pressure plate 12 to move downward through the elastic component 11 to press the coil. The design of the elastic component 11 can both assist in pressing the coil and prevent the coil from deforming under pressure.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A spot welding apparatus for producing and processing an electromagnetic pin puller, characterized by, It includes a spot welding station (1), the top of which is provided with a base (2), and the top of the base (2) is provided with a positioning mechanism (3) for positioning the coil. The positioning mechanism (3) includes a positioning seat (4) located at the top of the base (2). A V-shaped groove (5) is provided at the top of the positioning seat (4). One end of the V-shaped groove (5) is connected to a conical positioning pin (7) through an adjustment component (6). One end of the positioning pin (7) is conical. An elastic pressing component (8) is provided at the top of the base (2) above the positioning seat (4). The elastic clamping assembly (8) includes a U-shaped bracket (9) at the top of the base (2), a vertically downward hydraulic cylinder (10) is installed in the middle of the bracket (9), and an arc-shaped auxiliary pressure plate (12) is connected to the bottom of the hydraulic cylinder (10) through an elastic assembly (11).

2. An electromagnetic pin ejector production point welding apparatus according to claim 1, characterized in that, The elastic component (11) includes a guide lifting plate (13) located on the output shaft of the hydraulic cylinder (10), a connecting plate (14) located at the bottom center of the guide lifting plate (13), and a connecting sleeve plate (15) connected to the bottom end of the connecting plate (14).

3. An electromagnetic pin ejector point welding apparatus according to claim 2, wherein The connecting sleeve (15) is provided with multiple return springs (16) inside, and the bottom end of the connecting sleeve (15) is connected to the middle part of the auxiliary pressure plate (12).

4. An electromagnetic pin ejector point welding apparatus according to claim 2, wherein Both ends of the connecting plate (14) are provided with guide sleeves (17) that are fitted onto the bracket (9).

5. The apparatus for spot welding of an electromagnetic pin puller according to claim 1, wherein A miniature wave soldering nozzle (18) is installed on one side of the top of the base (2), and the miniature wave soldering nozzle (18) is connected to an external solder pot.

6. An electromagnetic pin ejector point welding apparatus according to claim 1, wherein The inner surface of the contoured V-groove (5) of the base (2) is provided with multiple compressed air blowing holes (19).

7. The apparatus for spot welding of a production machining point of an electromagnetic pin puller according to claim 1, characterized in that, The base (2) is made of alumina ceramic.

8. An electromagnetic pin ejector point welding apparatus according to claim 1, wherein The adjustment assembly (6) includes a fixed block (20) located at one end of the contoured V-groove (5), and an adjustment screw (21) is threaded onto the fixed block (20). The inner end of the adjustment screw (21) is connected to one end of the positioning pin (7) via a bearing.

9. An electromagnetic pin ejector point welding apparatus according to claim 8, wherein The outer end of the adjusting screw (21) is provided with a rotating wheel, and the end of the positioning pin (7) near the adjusting screw (21) is provided with a guide slider (22) that matches the inner wall of the contoured V-groove (5).