clamps for wire welding

Abstract

This invention provides a clamp for welding guide wires, comprising: a mounting base plate having a through hole along a first direction, through which a guide wire passes and extends along the first direction; and clamping blocks, two clamping blocks adjustablely mounted on the mounting base plate, each clamping block having multiple clamping plates spaced apart along the first direction, each clamping plate having a V-groove, the clamping plates on the two clamping blocks being staggered, and the V-grooves on the two clamping blocks being opposite to each other, the guide wire being positioned within the space defined by the V-grooves on the two clamping blocks. This invention can adapt to the positioning of guide wires of various sizes and specifications, providing accurate guide wire positioning, a simple structure, and improving processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of wire guide clamp technology, and in particular to a clamp for wire welding. Background Technology

[0002] Guidewires are core medical consumables used for puncture positioning and guidance in interventional diagnosis and treatment. The tips of guidewires usually require laser welding. However, the diameter range of different guidewires is wide, making positioning difficult during guidewire welding.

[0003] Chinese Patent Publication No. CN219293091U discloses a wire welding device, including a base, a clamping mechanism, and a welding tool. The clamping mechanism includes a first driving mechanism and multiple clamping components. One end of each clamping component is detachably connected to the first driving mechanism along a first direction, and the other end of each clamping component has a mounting hole that passes through the clamping component along a second direction for the head end of the wire to pass through. The radial dimensions of the mounting holes of different clamping components are different. Each clamping component includes two clamping members arranged opposite each other along a third direction. The two clamping members of the same clamping component abut to form a mounting hole. The first driving mechanism is used to drive the two clamping members connected to it to move closer or further apart from each other along the third direction. The welding tool is spaced apart from the clamping components along the second direction and is used to weld the head end of the wire. This wire welding device allows the mounting holes of different clamping components to be adapted to wires of different thicknesses, making the wire welding device applicable to wires of different thicknesses. However, the wire welding device requires multiple different clamping components, which is costly and complex. If the same first drive mechanism is used, the cost of assembly and debugging needs to be considered when switching between different clamping components, which affects processing efficiency. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a clamp for wire welding that can adapt to the positioning of wires of various sizes and specifications.

[0005] The embodiments of this utility model are achieved through the following technical solutions:

[0006] A guide wire welding fixture includes: a mounting base plate having a through hole along a first direction, through which a guide wire passes and extends along the first direction; and clamping blocks, two clamping blocks being adjustablely mounted on the mounting base plate, each clamping block having a plurality of clamping plates spaced apart along the first direction, each clamping plate having a V-groove, the clamping plates on the two clamping blocks being staggered, and the V-grooves on the two clamping blocks being opposite to each other, the guide wire being located within the space defined by the V-grooves on the two clamping blocks.

[0007] According to a preferred embodiment, the clamping block includes a detachable connecting portion and a limiting portion. A first partition plate is disposed on the connecting portion, and a first inner groove surface is disposed on the first partition plate. A second partition plate is disposed on the limiting portion, and a second inner groove surface is disposed on the second partition plate. The first partition plate and the second partition plate constitute the clamping plate, and the first inner groove surface and the second inner groove surface constitute the V-shaped groove.

[0008] According to a preferred embodiment, the two clamping blocks can move closer to or further away from each other.

[0009] According to a preferred embodiment, the two clamping blocks are linked together.

[0010] According to a preferred embodiment, the two clamping blocks are linked by a thin pneumatic gripper.

[0011] According to a preferred embodiment, a first manual displacement stage is disposed on the mounting base plate, and a drive rod is disposed on the first manual displacement stage, the drive rod being connected to one of the clamping blocks.

[0012] According to a preferred embodiment, the guide wire welding fixture further includes a rotary assembly, the mounting base plate is assembled to the rotary assembly, and the through hole is coaxial with the rotary axis of the rotary assembly.

[0013] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0014] This invention can adapt to guide wire positioning of various sizes and specifications, with accurate guide wire positioning, simple structure, and is conducive to improving processing efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A three-dimensional structural schematic diagram of the wire welding fixture provided in an embodiment of this utility model;

[0017] Figure 2 A schematic diagram of the assembly structure of the two clamping blocks and the guide wire provided for an embodiment of this utility model;

[0018] Figure 3 for Figure 2 A partially enlarged schematic diagram of the structure at point A;

[0019] Figure 4 A three-dimensional structural diagram of the clamping block provided in an embodiment of this utility model;

[0020] Figure 5 This is a three-dimensional structural diagram of the connecting part provided in an embodiment of the present utility model;

[0021] Figure 6 This is a three-dimensional structural diagram of the limiting part provided in an embodiment of the present utility model.

[0022] Icons: 1. Mounting base plate; 11. Through hole; 12. First manual displacement stage; 13. Drive rod; 2. Guide wire; 3. Clamping block; 31. Connecting part; 32. Limiting part; 33. Clamping plate; 330. V-groove; 331. First dividing plate; 3311. First inner groove surface; 332. Second dividing plate; 3321. Second inner groove surface; 4. Thin pneumatic gripper; 5. Second manual displacement stage; 6. Rotary assembly; a. Boundary segment; X. First direction; Y. Second direction; Z. Third direction. Detailed Implementation

[0023] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0024] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0026] Please refer to Figures 1 to 6A guide wire welding fixture includes a mounting base plate 1 and clamping blocks 3. A through hole 11 is provided on the mounting base plate 1 along a first direction X. A guide wire 2 passes through the through hole 11 and extends along the first direction X. Two clamping blocks 3 are adjustablely mounted on the mounting base plate 1. Multiple clamping plates 33 are spaced apart on each clamping block 3 along the first direction X. V-grooves 330 are formed on each clamping plate 33. The clamping plates 33 on the two clamping blocks 3 are staggered, and the V-grooves 330 on the two clamping blocks 3 are opposite to each other. The guide wire 2 is located within the space defined by the V-grooves 330 on the two clamping blocks 3. Figures 1 to 4 As shown, when the two clamping blocks 3 approach each other, the groove walls of the V-shaped grooves 330 on the two clamping blocks 3 can act on the guide wire 2. As the two clamping blocks 3 gradually approach each other, the space defined by the V-shaped grooves 330 on the two clamping blocks 3 gradually decreases until the guide wire 2 is limited and fixed. This guide wire welding fixture can adapt to the positioning of guide wires 2 of various sizes and specifications. The guide wire 2 is accurately positioned, the structure is simple, and it is beneficial to improve processing efficiency.

[0027] like Figure 4 As shown, the clamping block 3 includes a detachable connecting part 31 and a limiting part 32. A first dividing plate 331 is disposed on the connecting part 31, and a first inner groove surface 3311 is disposed on the first dividing plate 331. A second dividing plate 332 is disposed on the limiting part 32, and a second inner groove surface 3321 is disposed on the second dividing plate 332. The first dividing plate 331 and the second dividing plate 332 constitute a clamping plate 33. The first inner groove surface 3311 and the second inner groove surface 3321 form a V-shaped groove 330. By using a split design, the V-shaped groove 330 formed by splicing the first inner groove surface 3311 and the second inner groove surface 3321, compared to the traditional processing method of V-shaped groove 330, ensures that the two groove surfaces of the V-shaped groove 330 intersect at a single line segment, such as... Figure 3 and Figure 4 The boundary segment a shown allows the V-groove 330 to accommodate the positioning of guide wires 2 with small diameters, such as guide wires 2 with diameters of 0.1 mm to 1 mm.

[0028] In this embodiment, the two clamping blocks 3 can move closer to or further away from each other. Furthermore, the two clamping blocks 3 are linked by a thin pneumatic gripper 4. In some embodiments, the thin pneumatic gripper 4 is driven by pneumatic pressure. In this embodiment, as... Figure 1 As shown, a first manual displacement stage 12 is configured on the mounting base plate 1, and a drive rod 13 is configured on the first manual displacement stage 12. The drive rod 13 is connected to one of the clamping blocks 3. Here, the first manual displacement stage 12 drives the two clamping blocks 3 to move closer or further apart synchronously.

[0029] In this embodiment, a second manual displacement stage 5 is configured on the mounting base plate 1, and a thin pneumatic gripper 4 is mounted on the second manual displacement stage 5. The second manual displacement stage 5 can drive the thin pneumatic gripper 4 to move along the second direction Y or the third direction Z, where the first direction X, the second direction Y, and the third direction Z are perpendicular to each other. Figure 1 As shown, the second manual displacement stage 5 can adjust the spatial position of the thin pneumatic gripper 4 in a plane parallel to the mounting base plate 1, thereby eliminating assembly errors and improving the accuracy of the fixture through fine-tuning after assembling the clamping block 3. Specifically, in use, after assembling the thin pneumatic gripper 4 and the clamping block 3, the second manual displacement stage 5 is fine-tuned to ensure that the space defined by the V-grooves 330 on the two clamping blocks 3 (e.g., ...) is within the specified range. Figure 3 The hole structure for accommodating the guide wire 2 shown is coaxial with the through hole 11. Finally, the drive rod 13 is assembled and connected to the clamping block 3. It should be noted that the first manual displacement stage 12 is used to adjust the movement of the two clamping blocks 3 along the second direction Y, that is, the two clamping blocks 3 move closer or further apart along the second direction Y.

[0030] In this embodiment, the mounting base plate 1 is disc-shaped, and the guide wire welding fixture also includes a rotary assembly 6. The mounting base plate 1 is assembled onto the rotary assembly 6, and the through hole 11 is coaxial with the rotation axis of the rotary assembly 6. The rotary assembly 6 can adjust the position of the structure mounted on the mounting base plate 1 in space, facilitating assembly, and simultaneously allows for circumferential angle adjustment of the guide wire 2 during welding. Optionally, the rotary assembly 6 can be a three-jaw chuck or a rotary table.

[0031] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A guide wire welding jig characterized by comprising: The utility model relates to a welding fixture for wire, which comprises: a mounting base provided with a through hole in a first direction, a guide wire passing through the through hole and extending in the first direction; two clamping blocks adjustably arranged on the mounting base, each clamping block being provided with a plurality of clamping plates spaced apart in the first direction, each clamping plate being provided with a V-shaped groove, the clamping plates on the two clamping blocks being staggered, and the V-shaped grooves on the two clamping blocks being oppositely arranged, the guide wire being located in a space defined by the V-shaped grooves on the two clamping blocks.

2. The guide wire welding jig according to claim 1, characterized by The clamping block comprises a detachable connecting portion and a limiting portion, the connecting portion being provided with a first sub-plate, the first sub-plate being provided with a first inner groove surface, the limiting portion being provided with a second sub-plate, the second sub-plate being provided with a second inner groove surface, the first sub-plate and the second sub-plate constituting the clamping plate, and the first inner groove surface and the second inner groove surface constituting the V-shaped groove.

3. The guide wire welding jig according to claim 1, characterized by The two clamping blocks can move towards or away from each other.

4. The guide wire welding jig according to claim 1, characterized by The two clamping blocks are linked together.

5. The guide wire welding jig according to claim 3 or 4, characterized by The two clamping blocks are linked together by a thin air claw.

6. The guide wire welding jig according to claim 5, characterized by The mounting base is provided with a first manual displacement table, the first manual displacement table being provided with a driving rod connected to one of the clamping blocks.

7. The guide wire welding jig according to claim 1, characterized by The welding fixture for wire further comprises a rotary assembly, the mounting base being assembled on the rotary assembly, and the through hole being coaxial with a rotary shaft of the rotary assembly.

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