CN208341996U - Stirring-head is used in agitating friction weldering - Google Patents

Abstract

The utility model provides a kind of agitating friction weldering stirring-head, and the stirring-head is made of mixing needle and shaft shoulder body, and the mixing needle protrudes from the shaft shoulder body front end face, and shaft shoulder body rear portion forms the clamping part for connecting with knife handle.The stirring-head of the utility model is made of shaft shoulder body and mixing needle two parts, stirring-head is directly connected to by shaft shoulder body rear portion with knife handle, eliminate the biggish transition portion of volume in the prior art and coupling part, stirring-head overall dimensions substantially reduce, tool materials are conducive to through hardening during heat treatment, it is able to maintain workpiece global consistency in this way, improves the wearability and thermal stability of material, increases the service life of stirring-head.And relative to traditional stirring-head, cost is greatly reduced, has saved resource.

Description

Stirring-head is used in agitating friction weldering

Technical field

The utility model belongs to agitating friction technical field, is related to a kind of agitating friction weldering stirring-head.

Background technique

Stirring-head is the key that agitating friction welding technology, is known as the heart of agitating friction weldering.The quality of stirring-head is not only It determines the performance of friction stir welding, and decides the production cost of agitating friction weldering.During agitating friction weldering, Mixing needle will be rotating at the combination interface of insertion materials to be welded, and be advanced under certain speed along weld seam.Therefore, it is stirring The working environment of stirring-head is more severe when friction welding (FW), tired to its rigidity, high temperature hardness, high-temperature wear behavior, high temperature toughness, heat Labor performance, high temperature oxidation resistance etc. all have more strict requirements.In actual use, stirring-head is needed as consumptive material Want frequent replacement.Stirring-head is more expensive, as shown in Figure 1, current stirring-head is mainly made of four parts: mixing needle 100, axis Shoulder portion 200, transition portion 300 and coupling part 400.Few then one, the several hundred members of stirring-head, more then one, thousands of members.

In the welding process, for different-thickness by weldering base material, the length and shaft shoulder diameter of mixing needle can be different.Make It in the process, typically causes stirring-head to fail because of mixing needle part wears or fracture, needs to carry out continually more It changes.In stirring-head replacement process, shoulder, transition portion and the coupling part of stirring-head be all often it is intact, A kind of great wasting of resources as mixing needle is given it up together, also to agitating friction soldering equipment using client bring compared with Big economic expenditure.

Utility model content

In view of the above deficiencies of the prior art, the purpose of this utility model is to provide a kind of agitating frictions to weld with stirring Head is mixed, is economized on resources, use cost is reduced.

In order to achieve the above objects and other related objects, technical solutions of the utility model are as follows:

A kind of agitating friction weldering stirring-head, the stirring-head are made of mixing needle and shaft shoulder body, the mixing needle protrusion In the shaft shoulder body front end face, shaft shoulder body rear portion forms the clamping part for connecting with knife handle.

Using the above structure, stirring-head is made of shaft shoulder body and mixing needle two parts, stirring-head by shaft shoulder body rear portion with Knife handle is directly connected to, and eliminates the biggish transition portion of volume in the prior art and coupling part, stirring-head overall dimensions are substantially Reduce, tool materials are conducive to through hardening during heat treatment, are able to maintain workpiece global consistency in this way, improve the wear-resisting of material Property and thermal stability, increase the service life of stirring-head.And relative to traditional stirring-head, cost is greatly reduced, is saved Resource.

Further, the mixing needle and shaft shoulder body by integral forming, the junction rounding off of mixing needle and shaft shoulder body,

Further, the shaft shoulder body front end face is equipped with groove.

Further, shaft shoulder body front outer wall along the circumferential direction offers thread groove.

Further, the clamping part is extended to form by shaft shoulder body, and the diameter of clamping part is less than or equal to shaft shoulder body front diameter.

Further, the tapered structure of the mixing needle, front end face are spherical surface.

Further, the mixing needle outer wall is provided with helical raised and at least two scarves.

Further, the helical raised is in right-hand screw structure.

Further, the milling of clamping part outer wall one or both sides is flat, forms stop surface.

Further, the length of the stirring-head is 20-50mm.

The beneficial effects of the utility model are: only replacing stirring-head, stirring-head is by shaft shoulder body after stirring-head abrasion It is formed with mixing needle two parts, stirring-head is directly connected to by shaft shoulder body rear portion with knife handle, and since stirring-head eliminates body The biggish transition portion of product and coupling part, stirring-head overall dimensions substantially reduce, and relative to traditional stirring-head, greatly reduce The tool materials of manufacture stirring-head, significantly reduce cost.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of stirring-head in the prior art；

Fig. 2 is the structural schematic diagram of the utility model stirring-head；

Fig. 3 is the left view of the utility model stirring-head；

Fig. 4 is the right view of the utility model stirring-head；

Fig. 5 is enlarged view at I in the utility model Fig. 2；

Fig. 6 is another structural schematic diagram of the utility model stirring-head；

Fig. 7 is the mounting structure schematic diagram of the utility model stirring-head and knife handle.

Piece mark explanation:

1- knife handle；2- stirring-head；21- shaft shoulder body；21a- clamping part；21b- groove；21c- thread groove；22- mixing needle； 22a- protrusion；22b- scarf；3- clamping screw.

Specific embodiment

The embodiments of the present invention is illustrated by particular specific embodiment below, those skilled in the art can be by this Content disclosed by specification understands other advantages and effect of the utility model easily.

Front and back described in this example, towards a side of workpiece as front when being used using stirring-head, after the side away from workpiece is Side.

Embodiment

As shown in Figures 2 to 7, a kind of agitating friction weldering stirring-head, including being connected and coaxial mixing needle 22 and axis Shoulder body 21, mixing needle 22 protrude from 21 front end face of shaft shoulder body, the rear portion of shaft shoulder body 21 integrally formed with clamping part 21a, for Knife handle connection.It is the intensity for improving stirring-head 2 in this example, mixing needle 22 and shaft shoulder body 21 are integrally formed.

Stirring-head 2 is made of shaft shoulder body 21 and 22 two parts of mixing needle, and stirring-head 2 is by 21 rear portion of shaft shoulder body and knife handle 1 It is directly connected to, the biggish transition portion of the volume that disappeared and coupling part, 2 overall dimensions of stirring-head substantially reduce, relative to tradition Stirring-head 2, greatly reduce cost, saved resource.

Wherein, 21 front end face of shaft shoulder body is along the circumferential direction provided with groove 21b, to increase shaft shoulder body during agitating friction weldering 21 and hold together aggregate capabilities by the friction between weldering base material and to the packet of plastic metal material, improves welding effect.

In order to reduce the heat accumulation in 2 welding process of stirring-head, the service life of stirring-head 2 is improved, before shaft shoulder body 21 Thread groove 21c is along the circumferential direction provided on portion's outer wall.

In this example, the tapered structure of 22 main body of mixing needle, outer wall is provided with the raised 22a of spiral distribution, and is provided with Three scarf 22b, the position scarf 22b are spherical surface without raised 22a, the front end face B of mixing needle 22.Mixing needle 22 is with protrusion 22a and scarf 22b improves welding effect to increase during agitating friction weldering mixing needle 22 and by the friction between weldering base material Fruit.

Preferably, the diameter of clamping part 21a is less than 21 front diameter of shaft shoulder body, as shown in Figure 6；Or shaft shoulder body 21 is each Section diameter is equal, as shown in Figure 2.

As shown in Figure 4 and shown in Fig. 7, the one or both sides milling of clamping part is flat, forms stop surface, in order to solid with knife handle Fixed, both limitations relatively rotate, and corresponding clamping screw 3 is one or two, and stop surface passes through removal clamping part 21a outer wall material The mode of material is formed；Clamping screw 3 is radially equipped on knife handle 1, clamping screw 3 is two be oppositely arranged, two locking screws Bolt 3 is against on the stop surface of clamping part 21a, and stirring-head 2 is locked.

In order to extend the service life of stirring-head 2, the junction C arc transition of mixing needle 22 and shaft shoulder body 21.

It is compared for welding 6061 aluminium alloys in following table, the utility model stirring-head length reduces 2/3 or more, stirs The length of head is mixed generally in 20mm-50mm.Price is 1/4 or so of existing stirring-head, has saved material cost, and use the longevity Life is 3 times of existing stirring-head or more.

The beneficial effects of the utility model are: the stirring-head of the utility model eliminates the biggish transition portion of volume and company Socket part point, stirring-head overall dimensions substantially reduce, and length only has 1/3 or so of existing stirring-head, relative to traditional stirring-head, The tool materials for greatly reducing manufacture stirring-head, significantly reduce cost.Tool materials are conducive to quench during heat treatment Thoroughly, it is able to maintain workpiece global consistency in this way, improves the wearability and thermal stability of material, increases the service life of stirring-head. The premature failure of mixing needle and shoulder is avoided, stirring-head service life is improved, further decreases use cost.

Any person skilled in the art all can be under the spirit and scope without prejudice to the utility model, to above-described embodiment Carry out modifications and changes.Therefore, such as those of ordinary skill in the art without departing from disclosed in the utility model Spirit with technical idea under all equivalent modifications or change for being completed, should be contained by the claim of the utility model Lid.

Claims (8)

1. a kind of agitating friction weldering stirring-head, it is characterised in that: the stirring-head is made of mixing needle and shaft shoulder body, described to stir It mixes needle and protrudes from the shaft shoulder body front end face, shaft shoulder body rear portion forms the clamping part for connecting with knife handle；The shaft shoulder Body front outer wall along the circumferential direction offers thread groove；The mixing needle outer wall is provided with helical raised and at least two bevelings Face.

2. agitating friction weldering stirring-head according to claim 1, it is characterised in that: the mixing needle and shaft shoulder body one Molding, the junction rounding off of mixing needle and shaft shoulder body.

3. agitating friction weldering stirring-head according to claim 1, it is characterised in that: the shaft shoulder body front end face is equipped with recessed Slot.

4. agitating friction weldering stirring-head according to claim 1, it is characterised in that: the clamping part is extended by shaft shoulder body It is formed, the diameter of clamping part is less than or equal to shaft shoulder body front diameter.

5. agitating friction weldering stirring-head according to claim 1, it is characterised in that: the tapered structure of mixing needle, Its front end face is spherical surface.

6. agitating friction weldering stirring-head according to claim 1, it is characterised in that: the helical raised is in right-hand screw Structure.

7. agitating friction weldering stirring-head according to claim 1, it is characterised in that: clamping part outer wall side or two Side milling is flat, forms stop surface.

8. agitating friction weldering stirring-head according to claim 1, it is characterised in that: the length of the stirring-head is 20- 50mm。