A friction stir welding tool

Abstract

The utility model relates to the technical field of the stir head used in friction stir welding, especially a stir head used in friction stir welding, including the shaft shoulder, the left side in the shaft shoulder inside is provided with the first clamping seat, the right side in the shaft shoulder inside is provided with the second clamping seat, through the setting of the stir head used in friction stir welding, after the fixed bolt is dismantled, the fixed plate is moved to the upside, the fixed plate drives the fixed rod to move to the outside of the shaft shoulder, then the needle is moved to the upside and can be dismantled, the first clamping rod and the second clamping rod on the connecting plate are clamped in the inside of the first clamping groove and the second clamping groove respectively, the fixed plate is placed in the upper end of the shaft shoulder, after being fixed through the fixed bolt, the fixed rod can limit the needle, the needle is installed, and the installation and dismantling are more convenient, so when its abrasion is produced, it is convenient to replace, and the overall device is simple in structure, convenient in operation and higher in practicality.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of the stir head for friction stir welding, specifically to a stir head for friction stir welding. BACKGROUND

[0002] Friction stir welding refers to the heat generated by the friction between the high-speed rotating stir head and the workpiece to make the welded material locally melt, when the welding tool moves forward along the welding interface, the plasticized material flows from the front to the rear under the rotating friction force of the welding tool, and forms a dense solid-phase welding seam under the extrusion of the welding tool.

[0003] Because the stir head needs to be rubbed with the workpiece to generate heat, the stirring needle is easy to break during use, and the existing stir head is large in size, high in cost and inconvenient to replace the stirring needle alone.

[0004] Therefore, a stir head for friction stir welding is needed to improve the above problems. SUMMARY

[0005] The utility model discloses a kind of stir head for friction stir welding, to solve the problem raised in above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A kind of stir head for friction stir welding, including shaft shoulder, the left side of the inside of the shaft shoulder is provided with first clamping seat, the right side of the inside of the shaft shoulder is provided with second clamping seat, the base surface of the first clamping seat is provided with first clamping groove, the base surface of the second clamping seat is provided with second clamping groove, the inside of the shaft shoulder and the upper side of first clamping seat and second clamping seat are provided with connecting plate, the left side of the bottom of the connecting plate is provided with first clamping rod, the right side of the bottom of the connecting plate is provided with second clamping rod, the left and right sides of the connecting plate are symmetrically provided with limiting block, the left and right sides of the inside of the shaft shoulder are symmetrically provided with limiting slot, the bottom of the shaft shoulder is provided with through slot, the left and right sides of the base surface of the shaft shoulder are symmetrically provided with screw hole, the middle of the bottom of the connecting plate is provided with needle, the upper end of the shaft shoulder is provided with fixed plate, the bottom of the fixed plate is provided with fixed rod, the base surface of the fixed plate is provided with tool shank, the left and right sides of the base surface of the fixed plate are symmetrically provided with fixed bolt with screw.

[0008] As preferred scheme of the utility model, the first clamping rod and the second clamping rod are respectively correspondingly adapted to be provided with the first clamping groove and the second clamping groove.

[0009] As preferred scheme of the utility model, the limiting slot is correspondingly adapted to be provided with the limiting block.

[0010] As the preferred scheme of the utility model, the through groove is arranged in adaptation with the needle head.

[0011] As the preferred scheme of the utility model, the fixing bolt is in threaded connection with the threaded hole.

[0012] As the preferred scheme of the utility model, the lower end of the needle head is arranged in a conical structure, and the outer surface of the needle head is provided with a stirring protrusion, and the outer surface of the shaft shoulder is provided with a heat dissipation groove.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] In the utility model, the fixing bolt is disassembled, the fixed plate is moved upward, the fixed rod is moved to the outside of the shaft shoulder under the drive of the fixed plate, and then the needle head is moved upward to disassemble it, the first clamping rod and the second clamping rod on the connecting plate are clamped in the first clamping groove and the second clamping groove respectively, the fixed plate is placed at the upper end of the shaft shoulder, and the fixed rod can limit the needle head after being fixed by the fixing bolt, the installation and disassembly are convenient, the overall device is simple in structure, convenient in operation and higher in practicality. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the overall front view of the utility model;

[0016] Fig. 2 It is the overall structure sectional view of the utility model;

[0017] Fig. 3 It is the partial structure diagram of the utility model.

[0018] In the drawing: 1, shaft shoulder; 2, first clamping seat; 3, second clamping seat; 4, first clamping groove; 5, second clamping groove; 6, connecting plate; 7, first clamping rod; 8, second clamping rod; 9, limiting block; 10, limiting groove; 11, through groove; 12, threaded hole; 13, needle head; 14, fixed plate; 15, fixed rod; 16, tool shank; 17, fixing bolt. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments, based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0020] For the convenience of understanding the utility model, the utility model will be described more fully below with reference to the relevant drawings, several embodiments of the utility model are given, however, the utility model can be realized in many different forms, and is not limited to the embodiments described herein, on the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be intervening elements, and when an element is referred to as being "connected to" another element, it can be directly connected to the other element or there can be intervening elements, the terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0022] 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 the utility model belongs, the terminology used in the specification of the utility model herein is only for the purpose of describing specific embodiments and is not intended to limit the utility model, the term "and / or" used herein includes any and all combinations of one or more of the associated listed items.

[0023] Embodiments, please refer to Figs. 1-3 The utility model provides a technical scheme:

[0024] A stir friction welding is used stirring head, including shaft shoulder 1, the left side of the inside of shaft shoulder 1 is provided with first clamping seat 2, the right side of the inside of shaft shoulder 1 is provided with second clamping seat 3, the base surface of first clamping seat 2 is provided with first clamping groove 4, the base surface of second clamping seat 3 is provided with second clamping groove 5, the inside of shaft shoulder 1 and the upside of first clamping seat 2 and second clamping seat 3 are provided with connecting plate 6, the left side of the bottom of connecting plate 6 is provided with first clamping rod 7, the right side of the bottom of connecting plate 6 is provided with second clamping rod 8, the left and right sides of connecting plate 6 are symmetrically provided with limiting block 9, the left and right sides of the inside of shaft shoulder 1 are symmetrically provided with limiting groove 10, the bottom of shaft shoulder 1 is provided with through slot 11, the left and right sides of the base surface of shaft shoulder 1 are symmetrically provided with threaded hole 12, the middle of the bottom of connecting plate 6 is provided with needle 13, the upper end of shaft shoulder 1 is provided with fixed plate 14, the bottom of fixed plate 14 is provided with fixed rod 15, the base surface of fixed plate 14 is provided with tool shank 16, the left and right sides of the base surface of fixed plate 14 are symmetrically provided with fixed bolt 17.

[0025] The first clamping rod 7 and the second clamping rod 8 are respectively correspondingly and adaptively arranged with the first clamping groove 4 and the second clamping groove 5, the limiting groove 10 is correspondingly and adaptively arranged with the limiting block 9, the through groove 11 is adaptively arranged with the needle 13, the fixed bolt 17 is threadedly connected with the threaded hole 12, the lower end of the needle 13 is provided in a conical structure, the outer surface of the needle 13 is provided with a stirring protrusion, the outer surface of the shaft shoulder 1 is provided with a heat dissipation groove, the fixed bolt 17 is disassembled, the fixed plate 14 is moved upward, the fixed plate 14 drives the fixed rod 15 to move to the outer side of the shaft shoulder 1, then the needle 13 is moved upward, the first clamping rod 7 and the second clamping rod 8 on the connecting plate 6 are clamped in the first clamping groove 4 and the second clamping groove 5 respectively, the fixed plate 14 is placed on the upper end of the shaft shoulder 1, the fixed rod 15 can limit the needle 13 after being fixed by the fixed bolt 17, the installation of the needle 13 is completed, the installation and disassembly are relatively convenient, so that the needle 13 can be conveniently replaced when being worn, and the overall device is simple in structure, convenient in operation and higher in practicality.

[0026] The working process of the utility model: when the stirring friction welding stirrup is used, the fixed bolt 17 is rotated, the fixed bolt 17 is disassembled from the inside of the threaded hole 12, the fixed plate 14 is moved upward, the fixed plate 14 drives the fixed rod 15 to move to the outer side of the shaft shoulder 1, then the needle 13 is moved upward, the first clamping rod 7 and the second clamping rod 8 on the connecting plate 6 are clamped in the first clamping groove 4 and the second clamping groove 5 respectively, the fixed plate 14 is placed on the upper end of the shaft shoulder 1, the fixed rod 15 can limit the needle 13 after being fixed by the fixed bolt 17, the installation of the needle 13 is completed, the installation and disassembly are relatively convenient, so that the needle 13 can be conveniently replaced when being worn.

[0027] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A stirring head for friction stir welding, comprising a shoulder (1), characterized in that: A first locking seat (2) is provided on the left side inside the shoulder (1), and a second locking seat (3) is provided on the right side inside the shoulder (1). A first locking groove (4) is provided on the base surface of the first locking seat (2), and a second locking groove (5) is provided on the base surface of the second locking seat (3). A connecting plate (6) is provided inside the shoulder (1) and above the first locking seat (2) and the second locking seat (3). A first locking rod (7) is provided on the left side of the bottom of the connecting plate (6), and a second locking rod (8) is provided on the right side of the bottom of the connecting plate (6). The left and right sides of the connecting plate (6) are symmetrical. A limit block (9) is provided. Limit grooves (10) are symmetrically opened on the left and right sides inside the shoulder (1). A through groove (11) is provided at the bottom of the shoulder (1). Threaded holes (12) are symmetrically opened on the left and right sides of the base surface of the shoulder (1). A needle (13) is provided at the middle of the bottom of the connecting plate (6). A fixing plate (14) is provided at the upper end of the shoulder (1). A fixing rod (15) is provided at the bottom of the fixing plate (14). A knife handle (16) is provided on the base surface of the fixing plate (14). Fixing bolts (17) are symmetrically threaded on the left and right sides of the base surface of the fixing plate (14).

2. The stirring head for friction stir welding according to claim 1, characterized in that: The first snap-fit ​​rod (7) and the second snap-fit ​​rod (8) are respectively adapted to the first snap-fit ​​groove (4) and the second snap-fit ​​groove (5).

3. The stirring head for friction stir welding according to claim 1, characterized in that: The limiting groove (10) is adapted to the limiting block (9).

4. The stirring head for friction stir welding according to claim 1, characterized in that: The through groove (11) is adapted to the needle (13).

5. A stirring head for friction stir welding according to claim 1, characterized in that: The fixing bolt (17) is threadedly connected to the threaded hole (12).

6. A stirring head for friction stir welding according to claim 1, characterized in that: The lower end of the needle (13) is tapered, and the outer surface of the needle (13) is provided with stirring protrusions. The outer surface of the shoulder (1) is provided with heat dissipation grooves.

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