A guide wire automatic welding clamp
By designing a wire guide clamp that includes components such as a base, clamping seat, pressure block, and limit seat, and utilizing a combination structure of nylon studs and springs to achieve the positioning and clamping of the wire guide, the problem of clamp accuracy and stability in automated wire guide welding is solved, thereby improving welding quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI DUOMU IND CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-06-02
AI Technical Summary
In the automated welding process of guide wires, the precision and stability of the fixtures are difficult to meet the high requirements of the thin guide wires, leading to welding failure or quality problems. In addition, high temperature stress may cause the fixtures to deform and be damaged.
A clamping structure was designed, comprising a base, a clamping seat, a pressing block, a limiting seat, a pressure plate, a fixing block, a handle, a spring, and a nylon stud. The guide wire is positioned by the nylon stud, and the clamping block is used to clamp the guide wire by utilizing the spring's rebound force, thus achieving the positioning and clamping of the guide wire.
It improves welding quality and production efficiency, ensures accuracy and stability in the automated welding process of guide wires, and is suitable for positioning and clamping of various product specifications.
Smart Images

Figure CN224309943U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding fixture technology, specifically a fixture for automatic wire welding. Background Technology
[0002] As a high-precision and high-reliability medical device, guidewires are primarily manufactured using welding processes. This process fuses the guidewire tip into a spherical shape, ensuring the integrity of the tip and tail, reducing breakage, and resulting in high product consistency, thus guaranteeing uniformity in subsequent processing. This process not only improves production efficiency but also enhances product stability and safety. However, the challenge in automated guidewire welding lies in the clamping fixture. Because guidewires are typically very thin, even minor deviations can lead to welding failure or quality issues, affecting subsequent processes. Therefore, the precision requirements for the clamping fixture are extremely high. Furthermore, the welding process generates high temperatures and stress. To prevent deformation and damage to the fixture during welding, it needs sufficient stability and heat resistance. Therefore, a reliable clamping fixture is needed to clamp and position the acupuncture guidewire; hence, an automated guidewire welding fixture is required. Utility Model Content
[0003] The purpose of this invention is to provide a clamp for automatic wire welding to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] An automatic wire welding fixture includes a base, a clamping seat, a clamping block, a limiting seat, a pressure plate, a fixing block, a handle, a spring, and a nylon stud. The upper part of the base has a groove, the clamping seat is located at the bottom right end of the groove, the nylon stud is located at the bottom of the clamping seat, the limiting seat is fixedly installed on the left side of the clamping seat, the clamping block is movably installed inside a square hole in the limiting seat and is located between the limiting seat and the clamping seat, the pressure plate is fixedly installed on the left side of the limiting seat, the fixing block is fixedly installed on the left side of the clamping block, and the handle is fixedly installed on the left side of the fixing block.
[0006] Furthermore, the upper part of the clamping seat is provided with a row of evenly distributed guide wire holes, the lower part is provided with a row of evenly distributed guide wire positioning holes, and a first groove is provided on the upper left side.
[0007] Furthermore, a guide wire hole is also provided on the upper right side of the clamping block, a guide wire positioning hole is also provided on the bottom, and a spring groove is provided on the middle left side.
[0008] Furthermore, the limiting seat has a second groove on the right side and a row of evenly distributed square holes on the left side.
[0009] Furthermore, the pressure plate is provided with a set of elongated holes that are symmetrically distributed vertically.
[0010] Furthermore, the clamping block is disposed between the first groove of the clamping seat and the second groove of the limiting seat, and the left end of the clamping block passes through the square hole of the limiting seat and the elongated hole of the pressure plate.
[0011] Furthermore, a spring is provided in the spring groove of the clamping block.
[0012] Furthermore, the nylon stud is disposed within the guide wire positioning hole of the clamping seat and the clamping block.
[0013] Compared with existing technologies, the beneficial effects of this utility model are:
[0014] This invention achieves automated welding of the guide wire by placing a nylon stud in the guide wire positioning hole and using the upper surface of the nylon stud to position the guide wire, and then using the spring's rebound force to press the guide wire with a clamping block. This improves the welding quality and production efficiency of the welded parts. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0016] Figure 2 This is a cross-sectional structural diagram of a guide wire station in this utility model.
[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the clamping seat of this utility model.
[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the clamping block of this utility model.
[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of the limiting seat of this utility model.
[0020] Figure 6 This is a schematic diagram of the cross-sectional structure of the pressure plate of this utility model.
[0021] In the diagram: 1-base; 2-clamping seat; 3-pressing block; 4-limiting seat; 5-pressure plate; 6-fixing block; 7-handle; 8-spring; 9-nylon stud; 10-guide wire hole; 11-guide wire positioning hole; 12-spring groove; 13-groove; 14-groove; 15-square hole; 16-elongated hole. Detailed Implementation
[0022] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0023] Please see Figure 1-6An automatic wire welding fixture is characterized by comprising a base 1, a clamping seat 2, a clamping block 3, a limiting seat 4, a pressure plate 5, a fixing block 6, a handle 7, a spring 8, and a nylon stud 9. The upper part of the base 1 is provided with a groove. The clamping seat 2 is located at the bottom right end of the groove. The nylon stud 9 is located at the bottom of the clamping seat 2. The limiting seat 4 is fixedly installed on the left side of the clamping seat 2. The clamping block 3 is movably installed inside the square hole of the limiting seat 4 and is located between the limiting seat 4 and the clamping seat 2. The pressure plate 5 is fixedly installed on the left side of the limiting seat 4. The fixing block 6 is fixedly installed on the left side of the clamping block 3. The handle 7 is fixedly installed on the left side of the fixing block 6. The upper part of the clamping seat 2 is provided with a row of evenly distributed wire guide holes 10, and the bottom part is provided with a row of evenly distributed wire guide positioning holes 11. A first groove 13 is provided on the upper left side. The clamping block 3 also has a guide wire hole 10 on its upper right side and a guide wire positioning hole 11 on its bottom, and a spring groove 12 on its middle left side. The limiting seat 4 has a second groove 14 on its right side and a row of evenly spaced square holes 15 on its left side. The pressure plate 5 has a set of symmetrically distributed elongated holes 16. The clamping block 3 is positioned between the first groove 13 of the clamping seat and the second groove 14 of the limiting seat, with its left end passing through the square hole 15 of the limiting seat and the elongated hole 16 of the pressure plate. A spring is installed in the spring groove 12 of the clamping block. The nylon stud 9 is positioned within the guide wire positioning holes 11 of the clamping seat and the clamping block. Before welding, place this fixture at the welding station, pull handle 7, insert the guide wire into the guide wire positioning hole 11, and release handle 7 to clamp the guide wire with clamping block 3. This completes the installation of the guide wire at one station. Repeat the same steps to install the guide wires at other stations. Once all stations are installed, automated welding of the guide wires can begin. The welding speed is fast, the weld quality is high, and it is suitable for positioning and clamping various specifications of the same type of product, thereby improving the welding quality and production efficiency of the guide wires.
[0024] The embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.
Claims
1. A jig for automatic wire bonding, characterized by: The device includes a base (1), a clamping seat (2), a pressing block (3), a limiting seat (4), a pressure plate (5), a fixing block (6), a handle (7), a spring (8), and a nylon stud (9). The upper part of the base (1) is provided with a groove. The clamping seat (2) is located at the bottom right end of the groove. The nylon stud (9) is located at the bottom of the clamping seat (2). The limiting seat (4) is fixedly installed on the left side of the clamping seat (2). The pressing block (3) is movably installed inside the square hole of the limiting seat (4) and is located between the limiting seat (4) and the clamping seat (2). The pressure plate (5) is fixedly installed on the left side of the limiting seat (4). The fixing block (6) is fixedly installed on the left side of the pressing block (3). The handle (7) is fixedly installed on the left side of the fixing block (6).
2. The guide wire automatic welding clamp according to claim 1, characterized in that: The clamping seat (2) has a row of evenly distributed guide wire holes (10) on the upper part, a row of evenly distributed guide wire positioning holes (11) on the bottom, and a first groove (13) on the upper left side.
3. The guide wire automatic welding clamp of claim 1, wherein: The clamping block (3) is also provided with a wire guide hole (10) on the upper right side, a wire guide positioning hole (11) on the bottom, and a spring groove (12) on the middle left side.
4. The guide wire automatic welding clamp of claim 2, wherein: The limiting seat (4) has a second groove (14) on the right side and a row of evenly distributed square holes (15) on the left side.
5. The guide wire automatic welding clamp of claim 4, wherein: The pressure plate (5) is provided with a set of elongated holes (16) that are symmetrically distributed vertically.
6. The guide wire automatic welding clamp of claim 5, wherein: The clamping block (3) is disposed between the first groove (13) of the clamping seat and the second groove (14) of the limiting seat, and the left end of the clamping block (3) passes through the square hole (15) of the limiting seat and the elongated hole (16) of the pressure plate.
7. The guide wire automatic welding clamp of claim 3, wherein: A spring is provided in the spring groove (12) of the clamping block.
8. The guide wire automatic welding clamp according to claim 2 or 3, characterized in that: The nylon stud (9) is disposed in the guide wire positioning hole (11) of the clamping seat and the pressing block.