Static shaft shoulder stirring needle sheath

By designing a static shoulder stirring needle sheath that includes disassembly positioning surface, pressure-reducing exhaust hole, avoiding cone surface and cutting and cutting hole, the short sheath life and poor cutting in static shoulder stir welding are solved. The problem of reducing the spindle load and improving production efficiency is achieved.

CN119426777APending Publication Date: 2025-02-14JILIN JIACHI INTELLIGENT EQUIP CO LTD
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Patent Information

Application Number
CN202411859445.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2025-02-14

AI Technical Summary

Technical Problem

In the use of static shaft shoulder friction stir welding in the new energy field, there are problems such as short life of the stirring head sheath, poorly deflected, and often stuck, resulting in increased cost of consumables procurement and reduced production efficiency.

Method used

A static shaft shoulder stirring needle sheath is designed, including a sheath main body of the cavity cylindrical structure. The upper part of the outer circumference is equipped with a disassembly positioning surface and a pressure-reducing exhaust hole, and the lower part of the outer circumference is equipped with a conical surface and cutting and cutting The hole is fixed with a lower limit flange, a mounting locking flange and a matching mounting flange.

Benefits of technology

Through this sheath design, it is possible to increase the displacement during the welding process, reduce the spindle load, extend the sheath life, reduce equipment load, save operating costs, and improve productivity and competitiveness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The static shoulder stirring needle sheath comprises a sheath body, the sheath body is of a cavity cylinder structure, disassembly positioning faces are arranged on the two sides of the upper portion of the outer circumference of the sheath body, decompression exhaust holes are formed in the disassembly positioning faces, and an avoiding conical face is arranged on the lower portion of the outer circumference of the sheath body. Cutting and chip removing holes are formed in the outer circumference of the receding conical face, chip removing angles are arranged on the cutting and chip removing holes, and a lower limiting flange, an installation locking flange, a matched installation flange, a middle hole formed in the lower limiting flange, the installation locking flange and the matched installation flange are sequentially fixed to the top of the protective sleeve body. According to the method, the investment cost of welding consumables of static shoulder friction stir welding can be effectively reduced, the equipment load increase is reduced, the enterprise operation cost is reduced, the personnel health is improved, the productivity is improved, the working environment is improved, and the enterprise production competitiveness is further improved.
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Description

Technical Field

[0001] The invention relates to the technical field of static shoulder friction stir welding, in particular to a static shoulder stirring needle sheath. Background Art

[0002] At present, it is common to use static shoulder for friction stir welding in the new energy field on the market. The procurement and manufacturing cost is high, the life of the stirring head sheath is short, the chip discharge is not smooth and the stirring needle is often stuck, which affects the normal operation. The defects such as sheath wear are shown by comparing the service life replacement data of the production process, resulting in increased procurement costs for static shoulder friction stir welding consumables and reduced production efficiency. By continuously improving the process technology to reduce costs and increase benefits, a static shoulder sheath in static shaft friction stir welding needs to be studied urgently. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a static shoulder stirring needle sleeve, which can increase the chip removal amount and reduce the spindle load during the static shoulder friction stir welding process.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: a static shoulder stirring needle sleeve, comprising a sleeve body, the sleeve body is a hollow cylindrical structure, disassembly positioning surfaces are provided on both sides of the upper outer circumference of the sleeve body, and pressure relief exhaust holes are opened on the disassembly positioning surfaces, and an avoidance cone surface is provided on the lower outer circumference of the sleeve body, and cutting holes are opened on the outer circumference of the avoidance cone surface, and the cutting holes are provided with a cutting angle, and the top of the sleeve body is fixed with a lower limit flange, an installation locking flange, and a matching installation flange in sequence, and the lower limit flange, the installation locking flange, and the matching installation flange have a middle hole opened in them.

[0005] Furthermore, the disassembly positioning surface is arranged along the generatrix direction of the sheath body.

[0006] Furthermore, the pressure relief vent hole is provided on a disassembly positioning surface on one side.

[0007] Furthermore, the avoidance cone has a structure that is wide at the top and narrow at the bottom.

[0008] Furthermore, three cutting holes are evenly distributed around the outer circumference of the avoidance cone surface.

[0009] Furthermore, the cutting angle is located at the bottom of the cutting hole.

[0010] Furthermore, the angle range of the chamfer is 10-20 degrees.

[0011] Furthermore, the lower limit flange, the mounting locking flange, and the middle hole provided in the matching mounting flange are communicated with the cavity of the sheath body.

[0012] The present invention can effectively solve the investment cost of static shoulder stir friction welding consumables, reduce the increase in equipment load, save enterprise operating costs, personnel health, increase productivity, improve the working environment, and further help to improve the production competitiveness of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the front view of the present invention;

[0014] Figure 2 It is a bottom view of the present invention.

[0015] Among them: 1. Install locking flange, 2. Match installation flange, 3. Lower limit flange, 4. Disassembly positioning surface, 5. Pressure relief vent hole, 6. Cutting hole, 7. Chamfer, 8. Sheath body, 9. Avoidance cone surface. DETAILED DESCRIPTION

[0016] The following is combined with Figure 1 , 2 The specific implementation modes of the present invention are further described.

[0017] The static shoulder stirring needle sleeve comprises a sleeve body 8, which is a hollow cylindrical structure. Disassembly positioning surfaces 4 are arranged on both sides of the upper outer circumference of the sleeve body 8, and the disassembly positioning surfaces 4 are arranged along the generatrix direction of the sleeve body 8. The pressure reducing exhaust hole 5 is arranged on the disassembly positioning surface 4 on one side. The lower outer circumference of the sleeve body 8 is provided with an avoidance cone 9 which is wide at the top and narrow at the bottom. Three cutting holes 6 are evenly distributed around the outer circumference of the avoidance cone 9. The cutting holes 6 are provided with a cutting angle 7, which is located at the bottom of the cutting holes 6, and the angle range of the cutting angle 7 is 10-20 degrees. The top of the sleeve body 8 is fixed with a lower limit flange 3, an installation locking flange 1, and a matching installation flange 2 in sequence. The lower limit flange 3, the installation locking flange 1, and the matching installation flange 2 have a middle hole, and the lower limit flange 3, the installation locking flange 1, and the matching installation flange 2 have a middle hole, and the middle hole opened in the lower limit flange 3, the installation locking flange 1, and the matching installation flange 2 are connected to the cavity of the sleeve body 8.

[0018] Instructions:

[0019] 1. Take out the stirring needle sleeve from the static shaft shoulder and manually install the sleeve from the mounting hole direction of the stirring needle head.

[0020] 2. After replacing the special stirring needle and sleeve for the static shoulder of different specifications according to the welding product process, lock the adjustment flange and tighten the nut to ensure that the sleeve does not loosen.

[0021] 3. After installing the static shaft shoulder stirring needle and sleeve, welding work can be carried out.

[0022] The shape and size of the invention can be adjusted according to the size required by the customer's process, but the internal structure and principle remain unchanged.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. Stationary shaft shoulder stirring needle sheath, characterized in that: The invention comprises a sleeve body (8), which is a hollow cylindrical structure. Disassembly positioning surfaces (4) are provided on both sides of the upper part of the outer circumference of the sleeve body (8), and pressure relief vent holes (5) are provided on the disassembly positioning surfaces (4). An avoidance cone surface (9) is provided on the lower part of the outer circumference of the sleeve body (8), and a cutting hole (6) is provided on the outer circumference of the avoidance cone surface (9). The cutting hole (6) is provided with a cutting angle (7). A lower limit flange (3), an installation locking flange (1), and a matching installation flange (2) are fixed to the top of the sleeve body (8) in sequence, and a middle hole is provided in the lower limit flange (3), the installation locking flange (1), and the matching installation flange (2).

2. The static shoulder stirring needle sheath according to claim 1, characterized in that: The disassembly positioning surface (4) is arranged along the generatrix direction of the sheath body (8).

3. The static shoulder stirring needle sheath according to claim 1, characterized in that: The pressure reducing exhaust hole (5) is provided on the disassembly positioning surface (4) on one side.

4. The static shoulder stirring needle sheath according to claim 1, characterized in that: The avoidance cone surface (9) is a structure that is wide at the top and narrow at the bottom.

5. The static shoulder stirring needle sheath according to claim 1, characterized in that: Three cutting holes (6) are evenly distributed around the outer circumference of the avoidance cone surface (9).

6. The static shoulder stirring needle sheath according to claim 1, characterized in that: The cutting angle (7) is located at the bottom of the cutting hole (6).

7. The static shoulder stirring needle sheath according to claim 1, characterized in that: The angle range of the row chamfer (7) is 10-20 degrees.

8. The static shoulder stirring needle sheath according to claim 1, characterized in that: The lower limit flange (3), the mounting locking flange (1), and the central hole provided in the matching mounting flange (2) are communicated with the cavity of the sheath body (8).