Nickel-titanium alloy wire special-shaped support welding device

Abstract

The utility model relates to a nickel-titanium alloy wire special-shaped support welding device which comprises a die base, the die base is arranged on a welding equipment workbench, a profiling stop sleeve is arranged on a horizontal section of the top of the die base in a sleeved mode, a universal stop sleeve is arranged on the right side of the profiling stop sleeve, and the universal stop sleeve is arranged on the right side of the universal stop sleeve. The right end of the profiling stop sleeve and the left end of the universal stop sleeve are each provided with a circle of annular teeth, the shapes of the two annular teeth are matched, the space between the left annular tooth and the right annular tooth is used for machining the special-shaped support, the universal stop sleeve is tightened towards one side of the profiling stop sleeve, and the special-shaped support is clamped between the profiling stop sleeve and the universal stop sleeve. The welding device for the nickel-titanium alloy wire special-shaped support can effectively fix the special-shaped support, it is guaranteed that the welding point position of a welding machine is fixed, the efficiency and the qualified rate of continuous operation are improved, the production stability is improved, and the welding device is low in cost and easy and convenient to operate.

Description

Technical Field

[0001] The utility model relates to a welding device for a nickel-titanium alloy wire-type special-shaped bracket. Background Art

[0002] Nickel-titanium alloy is considered one of the best biofunctional materials due to its shape memory properties, excellent mechanical properties, corrosion resistance and biocompatibility. With the development of interventional medical technology, the advantages of nickel-titanium alloy in interventional medical devices are becoming increasingly obvious, and its various extended products are being used more and more widely in the treatment of vascular stenosis in the human body.

[0003] In recent years, aortic stent grafts have been increasingly used for endovascular treatment. Aortic stent grafts are made by sewing multiple wire-wound stents that are wound, shaped, and welded with nickel-titanium alloy wires on an artificial vascular membrane. For a single wire-wound stent made of nickel-titanium alloy wire, a welding machine is required to connect the individual stents in series. During the welding process, the welding focal length and welding seam width need to be kept the same.

[0004] At present, when welding special-shaped brackets, the staff uses tape to hold the nickel-titanium alloy wire to fit the mold and manually adjust the focal length for welding. The entire process requires the staff to hold the bracket tightly to ensure the connection gap and move the bracket to the mold. The position of each placement is different and the welding machine parameters need to be readjusted. This requires a high level of work skills of the staff, and the inconsistent parameters cannot guarantee stability, which affects the efficiency and pass rate of continuous operation. Utility Model Content

[0005] In view of the above technical problems, the utility model provides a nickel-titanium alloy wire special-shaped bracket welding device, which has low cost and is easy to operate, effectively reduces the work intensity and improves the stability of production.

[0006] The purpose of the utility model is achieved in this way:

[0007] A welding device for a special-shaped bracket of a nickel-titanium alloy wire, comprising a mold base, wherein the mold base is arranged on a workbench of a welding device, a contour stop sleeve is sleeved on a horizontal section on the top of the mold base, a universal stop sleeve is arranged on the right side of the contour stop sleeve, a circle of annular teeth are provided on the right end of the contour stop sleeve and the left end of the universal stop sleeve, the shapes of the two annular teeth match, the left and right annular teeth are used for processing the special-shaped bracket, and the special-shaped bracket is clamped between the contour stop sleeve and the universal stop sleeve by tightening the universal stop sleeve toward one side of the contour stop sleeve.

[0008] The mold base is in a C shape.

[0009] The bottom of the mold base is preset with a plurality of screw holes, and the mold base is fixed to the welding equipment workbench by screws.

[0010] Compared with the prior art, the advantages of the utility model are:

[0011] The utility model discloses a nickel-titanium alloy wire special-shaped bracket welding device which can effectively fix the special-shaped bracket, ensure the welding point of the welding machine is fixed, improve the efficiency and qualified rate of continuous operation, improve the stability of production, and has low cost and easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of a welding device for a nickel-titanium alloy wire-type special-shaped bracket of the utility model.

[0013] Among them: welding equipment workbench 1, mold base 2, contour stop sleeve 3, special-shaped bracket 4, universal stop sleeve 5, annular gear 6. DETAILED DESCRIPTION

[0014] like Figure 1 As shown, the utility model relates to a nickel-titanium alloy wire-type special-shaped bracket welding device, including a mold base 2, which is arranged on a welding equipment workbench 1. A plurality of screw holes are preset at the bottom of the mold base 2, and the mold base 2 is fixed to the welding equipment workbench 1 by screws.

[0015] The mold base 2 is C-shaped, and a contoured stop sleeve 3 is sleeved on the horizontal section at the top. A universal stop sleeve 5 is provided on the right side of the contoured stop sleeve 3. A circle of annular teeth 6 are provided at the right end of the contoured stop sleeve 3 and the left end of the universal stop sleeve 5, and the shapes of the two annular teeth 6 match.

[0016] The area between the left and right annular teeth 6 is used to process the special-shaped bracket 4. The special-shaped bracket 4 is clamped between the special-shaped stop sleeve 3 and the universal stop sleeve 5 by tightening the universal stop sleeve 5 toward one side of the contour stop sleeve 3. After adjusting the welding machine parameters, the welding point of the laser head will always remain on the annular teeth 6.

[0017] The mold base 2, the contour stop sleeve 3, and the universal stop sleeve 5 fix the special-shaped bracket 4 in the X, Y, and Z axis directions, which plays a fool-proof positioning role. After welding, you only need to remove the universal stop sleeve and the special-shaped bracket product, then put in another bracket to be processed and install the universal stop sleeve to continue the next welding.

Claims

1. A welding device for special-shaped stents made of nickel-titanium alloy wire, characterized by: The invention comprises a mold base (2), wherein the mold base (2) is arranged on a welding equipment workbench (1), and a profile stop sleeve (3) is sleeved on a horizontal section on the top of the mold base. A universal stop sleeve (5) is arranged on the right side of the profile stop sleeve (3). A circle of annular teeth (6) are provided at the right end of the profile stop sleeve (3) and the left end of the universal stop sleeve (5). The shapes of the two annular teeth (6) match each other. The space between the left and right annular teeth (6) is used for processing a special-shaped bracket (4). The universal stop sleeve (5) is tightened toward one side of the profile stop sleeve (3) to clamp the special-shaped bracket (4) between the profile stop sleeve (3) and the universal stop sleeve (5).

2. The device for welding special-shaped stents made of nickel-titanium alloy wire according to claim 1 is characterized in that: The mold base (2) is C-shaped.

3. The device for welding special-shaped stents made of nickel-titanium alloy wire according to claim 1 is characterized in that: The bottom of the mold base (2) is preset with a plurality of screw holes, and the mold base (2) is fixed to the welding equipment workbench (1) by screws.

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