CN218050828U

CN218050828U - Friction stir welding tool with temperature field regulation and control function

Info

Publication number: CN218050828U
Application number: CN202221286558.7U
Authority: CN
Inventors: 朱涵文; 梁新宇; 张博广
Original assignee: Kunshan Weikenuo New Energy Co ltd
Current assignee: Kunshan Weikenuo New Energy Co ltd
Priority date: 2022-05-26
Filing date: 2022-05-26
Publication date: 2022-12-16
Anticipated expiration: 2032-05-26

Abstract

The utility model discloses a friction stir welding frock with temperature field regulation and control function, all set up the open-ended base including up end and both sides limit, the water tiling is equipped with two sets of heat pipe groups in the base, two heat pipe groups are located the both sides of the central line of base length direction respectively, the base both sides still are fixed connection cooling trough respectively, two sets of heat pipe groups extend to in the cooling trough respectively, the base upper cover is equipped with two sets of upper cover plates, the cover plate sets up along the length of base, the cover plate both ends are fixed through upper plate and lower clamp plate respectively, the utility model relates to a friction stir welding frock with temperature field regulation and control function, adopt the mode of solid object heat conduction to assist, no electric current, no complicated external equipment, no liquid spill, convenient control; the heat pipes or the heating blocks are arranged on two sides of the welding line in an array mode, so that the problem of fitting of heat conduction of the solid object is effectively solved.

Description

Friction stir welding tool with temperature field regulation and control function

Technical Field

The utility model belongs to the technical field of the friction stir welding, especially, relate to a friction stir welding frock with temperature field regulation and control function.

Background

Friction Stir Welding (FSW) is a solid phase Welding technique, the Welding tool is called a Stir head, the Stir head generally has two key parts, namely a shaft shoulder and a Stir pin, the Stir pin is needed to be pricked into a plate to be welded during Welding, the shaft shoulder is tightly pressed or enters the surface of the plate to be welded and rotates at a high speed to move forward, and at the moment, the Stir head and the plate to be welded generate intense Friction to generate heat, thereby completing the solid phase Welding of the materials. In the process, a main heat source for welding is provided by a shaft shoulder, and researches show that the heat generated by the shaft shoulder is about 80% of the total heat generated by the stirring head, so that a welding seam temperature field has the characteristic of three-dimensional asymmetric gradient, and when special materials, dissimilar materials or thick plates are welded, an additional auxiliary means is usually needed to regulate and control the temperature field.

The existing scheme is divided into various auxiliary heat sources (three beams, electric induction, current, infrared and the like) and various auxiliary cold sources (underwater, water mist, air blowing, liquid nitrogen cooling and heat pipes) for welding assistance, so that the welding quality is improved. The mode of using an auxiliary cold source has the main defects of inconvenient control for fluids or need of specially manufacturing a set of control and collection system, and for solid heat sinks, the main problems at present are that a single heat pipe is applied, the heat pipe and a welding line are difficult to be tightly attached in actual operation, and the efficiency is low due to the single heat pipe; the mode of using the heat source needs special auxiliary equipment mostly, and often can only heat the weld part during control, often is difficult to control in actual production, and the operation is inconvenient. There is therefore a need for a solution to the above problems.

The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model aims at providing an effectively solve solid-state heat sink when the welding with the stirring friction welding frock that has temperature field regulation and control function of panel contact problem.

In order to realize the above-mentioned purpose, the utility model provides a friction stir welding frock with temperature field regulation and control function, a serial communication port, open-ended base has all been seted up including up end and both sides limit, the base water tiling is equipped with two sets of heat pipe groups, two the heat pipe group is located respectively the both sides of base length direction's central line, the base both sides are still fixed connection cooling trough respectively, and are two sets of the heat pipe group extends to respectively in the cooling trough, the base upper cover is equipped with two sets of upper cover plates, the upper cover plate is followed the length setting of base, the upper cover plate both ends are fixed through upper plate and holding down plate respectively.

In one example, a heat insulation pad is laid at the bottom of an opening in the upper end face of the base, a welding seam is reserved between the two heat pipe sets, a cushion block is arranged below the position of the welding seam, and the cushion block is arranged along the length of the base.

In one example, the heat pipe set includes two sets of heat pipes arranged in an array, the two heat pipes are arranged in parallel, one side of the heat pipe located in the lower layer contacts a plate to be welded, the other side of the heat pipe contacts the heat insulation pad, one side of the heat pipe located in the upper layer contacts the plate to be welded, and the other side of the heat pipe contacts the cover plate.

In one example, an opening is formed in the upper end surface of the cooling water tank, a notch matched with the heat pipe set is formed in one side, close to the heat pipe set, of the cooling water tank, and a liquid inlet hole and a liquid outlet hole for circulation of cooling liquid are further formed in two sides of the cooling water tank.

In one example, the upper pressing plate and the lower pressing plate are connected with the base through two groups of positioning bolts with different specifications, and the upper pressing plate and the lower pressing plate are arranged in a T shape.

In one example, a set of fixing bolts are horizontally arranged in the base in a penetrating mode, and the fixing bolts are located on one side, close to the upper pressing plate, of the base.

In one example, a group of limiting bolts horizontally penetrate through the base, the limiting bolts are located at two ends of the heat pipe on the lower layer, and the limiting bolts and the heat pipe are arranged in parallel.

Through the utility model provides a friction stir welding frock with temperature field regulation and control function can bring following beneficial effect:

1. the mode of heat conduction of the solid object is adopted for assistance, no current exists, no complex external equipment exists, no liquid overflows, and the control is convenient;

2. through the heat pipe or the resistance heating piece of welding seam both sides array overall arrangement, under the uneven condition that influences local heat pipe/heating piece contact of panel, also can not make other heat pipe/heating piece appear the laminating clearance yet, effectively solved the thermally conductive laminating problem of solid-state object.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is an exploded view of the friction stir welding tool with a temperature field regulation function of the present invention.

Fig. 2 is a three-dimensional assembly drawing of the present invention.

Fig. 3 is a top view of the present invention.

Fig. 4 is a side sectional view of the present invention.

Fig. 5 is a schematic view of the heat pipe structure of the present invention.

Fig. 6 is a schematic structural view of the water cooling tank of the present invention.

Fig. 7 is a schematic view of the upper cover plate structure of the present invention.

Fig. 8 is a schematic diagram of the structure of the lower pressing plate of the present invention.

Fig. 9 is a schematic diagram of the lower pressing plate structure of the present invention.

Fig. 10 is a schematic view of the base structure of the present invention.

Fig. 11 is a schematic diagram of the cushion block of the present invention.

Detailed Description

In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. In the description herein, references to the description of the terms "an aspect," "some aspects," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the aspect or example is included in at least one aspect or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same solution or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more aspects or examples.

Embodiment 1, as shown in fig. 1 to 4, an embodiment of the present invention provides a friction stir welding tool with a temperature field regulation function, which includes a base 1 having an upper end surface and two side edges both provided with an opening, two sets of heat pipe sets 2 horizontally laid in the base 1, the two sets of heat pipe sets 2 are respectively located on two sides of a central line of the base 1 in a length direction, cooling water tanks 3 are respectively and fixedly connected to two sides of the base 1, the two sets of heat pipe sets 2 respectively extend into the cooling water tanks 3, two sets of upper cover plates 4 are covered on the base 1, the upper cover plates 4 are arranged along the length of the base 1, two ends of the upper cover plates 4 are respectively fixed by an upper pressing plate 5 and a lower pressing plate 6, a heat insulation pad 11 is laid on the bottom of the opening of the upper end surface of the base 1, a welding seam 21 is left between the two sets of heat pipe sets 2, a cushion block 12 is arranged below the position of the welding seam 21, the cushion block 12 is arranged along the length of the base 1, the heat pipe sets 2 include two sets 22 arranged in an array, the two heat pipes 22 are arranged in parallel, one side of the heat pipe 22 positioned on the lower layer is contacted with a plate 7 to be welded, the other side is contacted with a heat insulation pad 11, one side of the heat pipe 22 positioned on the upper layer is contacted with the plate 7 to be welded, the other side is contacted with the upper cover plate 4, the upper end surface of the cooling water tank 3 is provided with an opening 31, one side of the cooling water tank 3 close to the heat pipe set 2 is provided with a notch 32 matched with the heat pipe set 2, two sides of the cooling water tank 3 are also provided with a liquid inlet hole 33 and a liquid outlet hole 34 for circulating cooling liquid, the upper pressure plate 5 and the lower pressure plate 6 are both connected with the base 1 through two groups of positioning bolts 8 with different specifications, the upper pressure plate 5 and the lower pressure plate 6 are both arranged in a T shape, a group of fixing bolts 13 are horizontally penetrated in the base 1, the fixing bolts 13 are positioned on one side of the base 1 close to the upper pressure plate 5, a group of limiting bolts 14 are horizontally penetrated in the base 1, and the limiting bolts 14 are positioned at two ends of the heat pipe 22 on the lower layer, the limit bolt 14 is arranged in parallel with the heat pipe 2.

The working principle is as follows: the base is moved to a welding workbench, after the base is fixed, a cushion block and a heat insulation pad are installed firstly, the cushion block is placed in the center of the base, the heat pipes are arranged in an array mode through openings in two sides of the base, then the plates to be welded are arranged in the base, fixing bolts and limiting bolts are locked, the plates to be welded can be fixed by matching with the base, then the upper-layer heat pipes are arranged in a mode consistent with the lower layer, after the arrangement is completed, the positioning bolts are used for matching with an upper pressing plate, a lower pressing plate and two upper cover plates to be locked, the upper pressing plate and the two upper cover plates are tightly attached to the surface of the plate to be welded, finally cooling water tanks are arranged on two sides of the tool, welding is started, after circulating water is led in, the heat pipes can transmit waste heat generated by welding lines to a condensation section, and are taken away through the circulating water.

Example 2

The utility model provides a friction stir welding frock with temperature field regulation and control function, its characterized in that includes that up end and both sides limit have all seted up open-ended base, and the water tiling is equipped with two sets of resistance wire heating blocks in the base, and two resistance wire heating blocks are located respectively the both sides of base length direction's central line, base both sides still are fixed connection cell body respectively, and two sets of resistance wire heating block group extend to in the cell body respectively, and the base upper cover is equipped with two sets of upper cover plates, and the upper cover plate sets up along the length of base, and the apron both ends are fixed through top board and holding down plate respectively.

The working principle is as follows: the base is moved to a welding workbench, after the base is fixed, the cushion block and the heat insulation pad are installed firstly, the cushion block is placed at the center of the base, the resistance wire heating blocks are arranged in an array mode through openings in two sides of the base, then the plates to be welded are arranged in the base, the fixing bolts and the limiting bolts are locked, the plates to be welded can be fixed by matching the base, then the upper resistance wire heating blocks are arranged, the mode of the upper resistance wire heating blocks is consistent with that of the lower resistance wire heating blocks, after the arrangement is completed, the positioning bolts are used for matching with the upper pressure plate, the lower pressure plate and the two upper cover plates to be locked, the upper pressure plate and the two upper cover plates are tightly attached to the lower pressure plate to be welded, finally, the groove bodies are arranged on two sides of the tool, the welding is started, auxiliary heating can be performed on welding seams in the welding process, the temperature of the surfaces of the plates to be welded is guaranteed, and the deformation of the surfaces of the plates to be welded due to the fact that the temperature of different areas is prevented.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, as for the system embodiment, since it is substantially similar to the method embodiment, the description is relatively simple, and reference may be made to the partial description of the method embodiment for relevant points.

The above description is only an example of the present invention and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The friction stir welding tool with the temperature field regulation function is characterized by comprising an upper end face and two side edges, wherein the upper end face and the two side edges are respectively provided with an open base, two groups of heat pipe sets are horizontally laid in the base, the two heat pipe sets are respectively positioned on two sides of a central line of the base in the length direction, the two sides of the base are respectively and fixedly connected with a cooling water tank, the two groups of heat pipe sets respectively extend into the cooling water tank, the base is provided with two groups of upper cover plates along the length of the base, and the two ends of each cover plate are respectively fixed through an upper pressing plate and a lower pressing plate.

2. The friction stir welding tool with the temperature field regulation and control function as claimed in claim 1, wherein a heat insulation pad is laid at the bottom of an opening on the upper end surface of the base, a welding seam is left between the two heat pipe sets, a cushion block is arranged below the position of the welding seam, and the cushion block is arranged along the length of the base.

3. The friction stir welding tool with the temperature field regulating function according to claim 2, wherein the heat pipe set comprises two sets of heat pipes arranged in an array, the two heat pipes are arranged in parallel, one surface of the heat pipe positioned on the lower layer contacts a plate to be welded, the other surface of the heat pipe positioned on the lower layer contacts the heat insulation pad, one surface of the heat pipe positioned on the upper layer contacts the plate to be welded, and the other surface of the heat pipe positioned on the upper layer contacts the cover plate.

4. The friction stir welding tool with the temperature field regulation and control function as claimed in claim 1, wherein an opening is formed in an upper end surface of the cooling water tank, a notch matched with the heat pipe set is formed in one side of the cooling water tank close to the heat pipe set, and a liquid inlet hole and a liquid outlet hole for circulating cooling liquid are further formed in two sides of the cooling water tank.

5. The friction stir welding tool with the temperature field regulation and control function according to claim 1, wherein the upper pressing plate and the lower pressing plate are connected with the base through two groups of positioning bolts with different specifications, and the upper pressing plate and the lower pressing plate are arranged in a T shape.

6. The friction stir welding tool with the temperature field regulation and control function according to claim 1, wherein a set of fixing bolts horizontally penetrates through the base, and the fixing bolts are located on one side, close to the upper pressure plate, of the base.

7. The friction stir welding tool with the temperature field regulation and control function according to claim 3, wherein a group of limiting bolts horizontally penetrate through the base, are located at two ends of the heat pipe at the lower layer, and are arranged in parallel with the heat pipe.