CN220388236U - Cooling structure of friction stir welding machine - Google Patents

Abstract

The utility model discloses a cooling structure of a friction stir welding machine, which relates to the technical field of friction stir welding machines and comprises a base, wherein a substrate for placing a workpiece to be welded is fixedly arranged on the upper end surface of the base, a quick clamp which is positioned beside the substrate and plays a clamping role on the workpiece to be welded is fixedly arranged at the top end of the base, an inner cavity of the base is hollow, a transverse partition plate is fixedly arranged in the inner cavity of the base, the inner cavity of the base is divided into a second accommodating groove and a first accommodating groove from top to bottom through the partition plate, a cooling component which plays a role in cooling the substrate is arranged in the second accommodating groove, the cooling structure of the friction stir welding machine plays a role in cooling the substrate and the quick clamp through the action of the cooling component, the possibility that the quick clamp is deformed by heating in the use process so as to influence the processing precision is reduced, and the service life of the device is effectively improved.

Description

Cooling structure of friction stir welding machine

Technical Field

The utility model relates to the technical field of friction stir welding, in particular to a cooling structure of a friction stir welding machine.

Background

Friction stir welding refers to the process of locally plasticizing a material to be welded by using heat generated by friction between a welding tool rotating at a high speed and a workpiece, wherein when the welding tool moves forwards along a welding interface, the plasticized material flows from the front part to the rear part of the welding tool under the action of the rotating friction force of the welding tool, and a compact solid-phase welding seam is formed under the extrusion of the welding tool.

When friction stir welding, need to wait to weld the work piece clamp through anchor clamps, current anchor clamps do not possess cooling function, and long-time use easily makes anchor clamps excessively heated, leads to deformation, influences machining precision.

The utility model provides a friction welding machine anchor clamps with cooling function that reference current chinese patent with publication No. CN202220871214.6 discloses, includes the base, first recess and a plurality of second recesses of arranging in first recess both sides are seted up to base upper wall center department, first recess interpolation is equipped with the cushion, and a plurality of all sliding connection has the slider in the second recess, the slider intercommunication has horizontal adjustment mechanism, wall and slider upper wall all are in the coplanar with the base upper wall on the cushion, the rigid coupling has fixture on the slider, two cooling water tanks have been seted up to the base lower wall, two form supporting part between the cooling water tank, a plurality of pipelines have been seted up in the supporting part, two cooling water tanks are linked together through a plurality of pipelines, two all rigid couplings have a plurality of baffles in the cooling water tank, base lower wall rigid coupling has the bottom plate.

This application can be through setting up through the inlet tube to the cooling water in the cooling water tank, can improve thermal transmission through the baffle that is equipped with to can make the even follow cooling water tank in through of cooling water, improve the utilization ratio of cooling water, prevent that the anchor clamps body from leading to deformation because of being heated too much, improve machining precision, this application is through setting up another cooling structure, in order to solve current friction welding anchor clamps and not possess the cooling function, the use of a long time is easy to make anchor clamps excessively heated, leads to deformation, influences machining precision's problem.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a cooling structure of a friction stir welding machine, which solves the problems that the existing friction welding clamp does not have a cooling function, and the clamp is easy to be excessively heated after long-time use, so that deformation is caused, and the machining precision is affected.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a friction stir welding machine cooling structure, includes the base, the up end of base has set firmly the base plate of placing the work piece of waiting to weld, the top of base has set firmly the quick clamp that is located the base plate side and has played the centre gripping effect to the work piece of waiting to weld, the base inner chamber cavity is hollow, the base inner chamber has set firmly horizontal division board, the inner chamber of base is separated into second holding tank and first holding tank from top to bottom through the division board, be equipped with the cooling module that plays the cooling effect to the base plate in the second holding tank.

Through above-mentioned technical scheme, play the cooling effect to base plate and quick clamp through cooling module's effect, reduce the quick clamp and be heated the deformation and influence the possibility of machining precision in the use, effectively improved the life of device.

Preferably, the cooling module is including being located inside the second holding tank and with the inside snakelike cold water pipe of detachable fixed connection of base inner wall, the inside bottom of first holding tank sets firmly first water pump and is located the cold water tank of first water pump side, the play water end of cold water tank communicates with the inlet end of first water pump, the play water end of first water pump communicates with the inlet end of snakelike cold water pipe, the division board is worn to establish by the play water end of snakelike cold water pipe and is got into inside the first holding tank, the inside that snakelike cold water pipe play water end got into first holding tank is equipped with water saving component.

Through the technical scheme, the base inner cavity is divided into the second holding tank and the first holding tank through the effect of division board, the second holding tank is located first holding tank top, two logical grooves that hold snakelike cold water pipe have been seted up respectively on the division board, second holding tank and first holding tank link up each other through logical groove, the partition board is all worn to establish through logical groove to the water inlet end and the play water end of snakelike cold water pipe and get into inside the first holding tank, make cold water inside the cold water tank get into inside the snakelike cold water pipe through the effect of first water pump, play the cooling effect to base plate and quick clamp through the cooperation of cold water and snakelike cold water pipe, carry out cyclic utilization to the rivers that flow from snakelike cold water pipe play water end through the effect of water conservation subassembly.

Preferably, the water-saving assembly comprises a thermostat which is positioned in the first accommodating groove and fixedly connected with the water outlet end of the snakelike cold water pipe, the thermostat is fixedly connected with the inner wall of the base, the two water outlet ends of the thermostat are respectively fixedly provided with a first water diversion pipe and a second water diversion pipe, the side of the second water diversion pipe is fixedly provided with a cooling fan which plays a cooling role on water flow in the second water diversion pipe, and one ends of the first water diversion pipe and the second water diversion pipe, which are far away from the thermostat, are communicated with the cold water tank.

Through above-mentioned technical scheme, the thermostat is current structure, do not do too much in here and describe, when the rivers flow to the thermostat inside through the snakelike cold water pipe, through the effect of thermostat, when rivers temperature is higher than eighty degrees, rivers get into inside the second water dividing pipe, the effect through cooling fan cools down the rivers of second water dividing pipe inside, the rivers after cooling get into inside the cold water tank, when rivers temperature is lower than eighty degrees, rivers get into inside the first water dividing pipe, and flow into inside the second water dividing pipe through first water dividing pipe, the rivers that flow into inside the cold water tank continue to get into inside the snakelike cold water pipe through the effect of first water pump, the operation more than the circulation.

Preferably, an air outlet is formed in the inner wall of the base, the front side edge of the base is hinged to an access door, and a water supplementing pipe is arranged on the cold water tank.

Through above-mentioned technical scheme, the staff of being convenient for overhauls the inside electrical components of base through the effect of access door, is convenient for the staff to the inside cold water of supplementing of cold water tank through the effect of moisturizing pipe.

Preferably, the quick clamp is provided with a cooling component which can further cool the quick clamp.

Through above-mentioned technical scheme, further play the cooling effect to the quick clamp through the effect of cooling subassembly, and then reduced the possibility that the quick clamp is heated to warp.

Preferably, the cooling assembly comprises a second water pump fixedly arranged on the base, the water inlet end of the second water pump is communicated with the cold water tank, the water outlet end of the second water pump is fixedly provided with a communicating pipe, one end of the communicating pipe, which is far away from the second water pump, is fixedly provided with a mounting plate positioned on the quick clamp, and a spraying assembly which plays a role in spraying water flowing out from the water inlet pipe is arranged on the mounting plate.

Through above-mentioned technical scheme, the effect through the second water pump makes the inside rivers of cold water tank get into inside the inlet tube through communicating pipe, makes rivers spray base plate and quick clamp through the effect of spraying the subassembly on, has increased the area of contact of rivers, has enlarged the scope of spraying of rivers, and then has improved the cooling scope of rivers.

Preferably, the spraying assembly comprises a wedge-shaped supporting seat fixedly connected with the upper end face of the quick clamp, the wedge-shaped supporting seat is obliquely arranged, one end of the wedge-shaped supporting seat, facing the base plate, is lower than one end of the wedge-shaped supporting seat, far away from the base plate, the upper end face of the wedge-shaped supporting seat is fixedly provided with a motor, the motor is fixedly connected with a mounting plate, an output shaft of the motor penetrates through the mounting plate and is rotationally connected with the mounting plate, the part of the mounting plate penetrating through the output shaft is fixedly provided with a square driving shaft, one side, far away from the motor, of the mounting plate is fixedly provided with an annular sleeve, one side, far away from the motor, of the mounting plate is provided with an annular groove positioned beside the annular sleeve, a turntable is connected with a turntable in an inserting mode, the turntable is of a hollow barrel-shaped structure with an opening at the bottom, the inner wall of the turntable is fixedly provided with a limiting ring pipe matched with the annular groove, the inner cavity of the turntable is divided into an annular through groove and a circular groove, a plurality of water outlet which is convenient for spraying water flow is formed in the turntable, the square driving shaft penetrates through the turntable and is fixedly connected with the turntable, and the square driving shaft penetrates out of the turntable, and the part of the turntable is sleeved with the turntable through the turntable is provided with a clamp spring.

Through above-mentioned technical scheme, the carousel inserts to the ring channel inside and rotates with the mounting panel through the ring channel to be connected, ring sleeve and spacing ring canal chucking are connected, square drive shaft wears to establish out the carousel, and make square drive shaft through the effect of jump ring, carousel fixed connection, and reduce the possibility that the carousel deviate from the mounting panel, drive square drive shaft through the effect of motor simultaneously and rotate, square drive shaft's rotation can drive the carousel and rotate, inside rivers entering annular through inslot portion of inlet tube, can make the rivers that the inlet tube flows out rotate through centrifugal action through the rotation of carousel and cut apart into a plurality of fine particle, and flow out the carousel through the delivery port, the area of contact of rivers has been increased, the scope of spraying of rivers has been enlarged, and then the cooling scope of rivers has been improved, also do not produce the influence to the welding work piece.

(III) beneficial effects

The utility model provides a cooling structure of a friction stir welding machine. The beneficial effects are as follows:

(1) According to the cooling structure of the friction stir welding machine, the cooling component is used for cooling the substrate and the quick clamp, the possibility that the machining precision is affected due to the fact that the quick clamp is heated and deformed in the use process is reduced, and the service life of the device is effectively prolonged.

(2) This friction stir welding machine cooling structure, when rivers flow to the thermostat inside through snakelike cold water pipe, through the effect of thermostat, when rivers temperature is higher than eighty degrees, rivers get into inside the second water dividing pipe, the effect through cooling fan cools down the rivers of second water dividing pipe inside, inside rivers entering cold water tank after the cooling, when rivers temperature is lower than eighty degrees, rivers get into inside the first water dividing pipe, and inside the second water dividing pipe is flowed into through first water dividing pipe, the rivers that flow into inside the cold water tank continue to get into inside the snakelike cold water pipe through the effect of first water pump, reduce the rivers consumption, the feature of environmental protection of the device has been improved.

(3) This friction stir welding machine cooling structure can drive the rivers that are located annular through the rotation of carousel and lead to the inslot portion and rotate, and the rivers are separated into a plurality of fine particle, flow out the carousel through the delivery port, have increased the area of contact of rivers, have enlarged the scope of spraying of rivers, and then have improved the cooling scope of rivers, also do not exert an influence to the work piece of treating welding.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;

FIG. 3 is a schematic view of a structure for embodying a water outlet of the present utility model;

FIG. 4 is a schematic view of a structure embodying a square drive shaft of the present utility model;

fig. 5 is a schematic view of a structure for embodying the spacing collar of the present utility model.

In the figure: 1. a base; 2. a substrate; 3. a quick clamp; 4. a first accommodation groove; 5. a partition plate; 6. a second accommodation groove; 7. a cold water tank; 8. a first water pump; 9. serpentine cold water pipe; 10. a thermostat; 11. a first water diversion pipe; 12. a second water diversion pipe; 13. a cooling fan; 14. a wedge-shaped supporting seat; 15. a motor; 16. a mounting plate; 17. a turntable; 18. a water inlet pipe; 19. a communicating pipe; 20. a water outlet; 21. a square drive shaft; 22. an annular sleeve; 23. an annular groove; 24. clamping springs; 25. limiting the ring pipe; 26. an annular through groove; 27. a circular groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-5, the present utility model provides a technical solution: the utility model provides a friction stir welding machine cooling structure, including base 1, the up end of base 1 has set firmly the base plate 2 of waiting to weld the work piece, the top of base 1 has set firmly the quick tongs 3 that are located base plate 2 side and wait to weld the work piece and play the centre gripping effect, base 1 inner chamber cavity is hollow, base 1 inner chamber has set firmly horizontal division board 5, base 1's inner chamber is separated into second holding tank 6 and first holding tank 4 from top to bottom through division board 5, be equipped with the cooling module that plays the cooling effect to base plate 2 in the second holding tank 6, play the cooling effect to base plate 2 and quick tongs 3 through the effect of cooling module, reduce quick tongs 3 and be heated deformation and influence the possibility of machining precision in the use, the service life of the device has been effectively improved.

Like fig. 1, cooling module is including being located inside second holding tank 6 and with base 1 inner wall detachable fixed connection's snakelike cold water pipe 9, first water pump 8 has been set firmly to the inside bottom of first holding tank 4 and be located the cold water tank 7 of first water pump 8 side, the play water end of cold water tank 7 and the inlet end intercommunication of first water pump 8, the inlet end intercommunication of first water pump 8 and snakelike cold water pipe 9, the division board 5 is worn to establish by the outlet end of snakelike cold water pipe 9 and get into inside first holding tank 4, snakelike cold water pipe 9 goes out water end and gets into inside of first holding tank 4 and be equipped with water saving component, the effect through division board 5 is with base 1 inner chamber divide into second holding tank 6 and first holding tank 4, second holding tank 6 is located first holding tank 4 top, two logical grooves that hold snakelike cold water pipe 9 have been seted up respectively on division board 5, second holding tank 6 and first holding tank 4 link up each other through logical groove, the inlet end and the outlet end of snakelike cold water pipe 9 all pass through logical groove and division board 5 and get into inside first holding tank 4, the inside through logical groove 4, the effect that the snakelike cold water pipe 9 goes out water end and get into inside through the first holding tank 4, make the cooling water pipe 2 through the effect of first clamp and make the cooling water pipe 2 through the effect of cooling water pipe 3, the effect of cooling down through the snakelike water pipe 2, the effect of cooling down through the effect of the inside the base plate 2, the effect of cooling water pipe is cooled down through the effect of the inside the main 2.

As shown in fig. 1, the water-saving assembly comprises a thermostat 10 which is positioned inside a first accommodating groove 4 and fixedly connected with the water outlet end of a serpentine cold water pipe 9, the thermostat 10 is fixedly connected with the inner wall of a base 1, two water outlet ends of the thermostat 10 are respectively fixedly provided with a first water diversion pipe 11 and a second water diversion pipe 12, the side of the second water diversion pipe 12 is fixedly provided with a cooling fan 13 which plays a cooling role in the second water diversion pipe 12, one ends of the first water diversion pipe 11 and the second water diversion pipe 12, which are far away from the thermostat 10, are communicated with a cold water tank 7, the thermostat is of an existing structure, excessive description is not needed, when water flows into the thermostat 10 through the serpentine cold water pipe 9, the water flows into the second water diversion pipe 12 through the effect of the thermostat 10, when the water flow temperature is higher than eighty degrees, the water flows into the second water diversion pipe 12 through the effect of the cooling fan 13, the water flows into the cold water tank 7, when the water flow after the water flow enters the cold water tank 7, the water flow enters the inside the first water diversion pipe 11, the water diversion pipe 11 flows into the cold water tank 7 through the inside, and the first water diversion pipe 7 through the first water diversion pipe 8, and the inside the serpentine cold water pump, and the circulating pipe 9.

As shown in fig. 1, an air outlet is formed in the inner wall of the base 1, an access door is hinged to the front side edge of the base 1, a water supplementing pipe is arranged on the cold water tank 7, workers are convenient to overhaul electrical components inside the base 1 through the action of the access door, and the workers are convenient to supplement cold water inside the cold water tank 7 through the action of the water supplementing pipe.

As shown in fig. 1, the rapid clamp 3 is provided with a cooling component which further cools the rapid clamp 3, and the rapid clamp 3 is further cooled through the cooling component, so that the possibility of thermal deformation of the rapid clamp 3 is reduced.

As fig. 1, the cooling assembly includes the second water pump that sets firmly with base 1, and the water inlet end and the cold water tank 7 intercommunication of second water pump, and the play water end of second water pump sets firmly communicating pipe 19, the one end that communicating pipe 19 kept away from the second water pump has set firmly inlet tube 18, the one end that communicating pipe 19 was kept away from to inlet tube 18 has set firmly the mounting panel 16 that is located on the quick clamp 3, be equipped with the spray assembly that plays the effect of spraying to the rivers that inlet tube 18 flows out on the mounting panel 16, make the inside rivers of cold water tank 7 get into inside inlet tube 18 through communicating pipe 19 through the effect of second water pump, make rivers spray to base plate 2 and quick clamp 3 through the effect of spray assembly, the area of contact of rivers has been increased, the scope of spraying of rivers has been enlarged, and then the cooling scope of rivers has been improved.

As shown in fig. 3, 4 and 5, the spraying component comprises a wedge-shaped supporting seat 14 fixedly connected with the upper end face of the quick clamp 3, the wedge-shaped supporting seat 14 is obliquely arranged, one end of the wedge-shaped supporting seat 14 facing the base plate 2 is lower than one end of the wedge-shaped supporting seat 14 far away from the base plate 2, a motor 15 is fixedly arranged on the upper end face of the wedge-shaped supporting seat 14, the motor 15 is fixedly connected with a mounting plate 16, an output shaft of the motor 15 penetrates through the mounting plate 16 and is rotationally connected with the mounting plate 16, a square driving shaft 21 is fixedly arranged on the part of the output shaft penetrating through the mounting plate 16, an annular sleeve 22 is fixedly arranged on one side of the mounting plate 16 far away from the motor 15, an annular groove 23 positioned beside the annular sleeve 22 is formed on one side of the mounting plate 16, a rotary disc 17 is connected in an inserted manner in the annular groove 23, the rotary disc 17 is of a hollow barrel-shaped structure with an opening at the bottom, a limiting ring pipe 25 matched with the annular sleeve 22 is fixedly arranged on the inner wall of the rotary disc 17, the inner cavity of the rotary table 17 is divided into an annular through groove 26 and a circular groove 27 through a limiting ring pipe 25, a plurality of water outlets 20 which are convenient for water to spray are formed in the rotary table 17, the square driving shaft 21 penetrates through the rotary table 17 and is fixedly connected with the rotary table 17, a clamp spring 24 is sleeved on the part of the square driving shaft 21 penetrating out of the rotary table 17, the rotary table 17 is fixedly connected with the square driving shaft 21 through the clamp spring 24, the rotary table 17 is inserted into the annular groove 23 and is rotationally connected with the mounting plate 16 through the annular groove 23, the annular sleeve 22 is tightly clamped and connected with the limiting ring pipe 25, the square driving shaft 21 penetrates out of the rotary table 17, the square driving shaft 21 and the rotary table 17 are fixedly connected through the effect of the clamp spring 24, the possibility that the rotary table 17 is separated from the mounting plate 16 is reduced, meanwhile, the square driving shaft 21 is driven to rotate through the effect of the motor 15, the square driving shaft 21 can drive the rotary table 17 to rotate, the inside rivers of inlet tube 18 get into annular logical inslot 26, can make the rivers that inlet tube 18 flow through the rotation of carousel 17 rotate and cut apart into a plurality of fine particle, and flow out carousel 17 through delivery port 20, have increased the area of contact of rivers, have enlarged the scope of spraying of rivers, and then improved the cooling scope of rivers, also do not exert an influence to the work piece of treating welding.

When the device is used, the water inlet pipe 18 extends into the annular through groove 26 and is close to the side wall of the annular through groove 26, when the device is used, the power supply is turned on, the switch is turned on, a worker places a workpiece to be welded on the substrate 2, when friction stir welding is carried out on the workpiece to be welded, the first water pump 8 is turned on, cold water in the cold water tank 7 enters the serpentine cold water pipe 9 through the action of the first water pump 8, the serpentine cold water pipe 9 is close to the top end of the inner wall of the base 1 and is close to the substrate 2, and the substrate 2 and the quick clamp 3 are cooled through the action of the serpentine cold water pipe 9;

the water flows out through the serpentine cold water pipe 9 and then enters the thermostat 10, the water with the water temperature higher than eighty degrees enters the second water diversion pipe 12 under the action of the thermostat 10, the cooling fan 13 is turned on, the water in the second water diversion pipe 12 is cooled under the action of the cooling fan 13, the cooled water enters the cold water tank 7, the water with the water temperature lower than eighty degrees enters the first water diversion pipe 11 and then enters the cold water tank 7, the above operation is repeated circularly, the consumption of cold water is reduced, and the environment-friendly throttling effect is achieved;

after friction stir welding of workpieces to be welded is completed, a worker opens a second water pump, water flow inside the cold water tank 7 enters the water inlet pipe 18 through the communicating pipe 19 under the action of the second water pump, the water inlet pipe 18 is close to the side wall of the rotary table 17, the motor 15 is opened, the square driving shaft 21 and the rotary table 17 are driven to rotate under the action of the motor 15, the water flow inside the annular through groove 26 is driven to rotate through the rotation of the rotary table 17, the water flow is divided into a plurality of fine particles, the fine particles flow out of the rotary table 17 through the water outlet 20, the contact area of the water flow is enlarged, the spraying range of the water flow is enlarged, the cooling range of the water flow is further improved, the workpieces to be welded is not influenced, and meanwhile, the cooling structure of the friction stir welding machine is used in the specification, and the content which is not described in detail in the specification belongs to the prior art known to the person skilled in the art.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a friction stir welding machine cooling structure, includes base (1), its characterized in that: the utility model discloses a welding machine, including base (1) and base, base (1) up end has set firmly base plate (2) of placing the work piece of waiting to weld, base (1)'s top has set firmly quick clamp (3) that are located base plate (2) side and wait to weld the work piece and play the centre gripping effect, base (1) inner chamber cavity, base (1) inner chamber has set firmly horizontal division board (5), base (1) inner chamber is separated into second holding tank (6) and first holding tank (4) from top to bottom through division board (5), be equipped with the cooling module that plays the cooling effect to base plate (2) in second holding tank (6).

2. A friction stir welding machine cooling structure according to claim 1 wherein: the cooling module comprises a snake-shaped cold water pipe (9) which is positioned inside the second accommodating groove (6) and detachably and fixedly connected with the inner wall of the base (1), a first water pump (8) is fixedly arranged at the bottom end inside the first accommodating groove (4) and a cold water tank (7) which is positioned beside the first water pump (8), the water outlet end of the cold water tank (7) is communicated with the water inlet end of the first water pump (8), the water outlet end of the first water pump (8) is communicated with the water inlet end of the snake-shaped cold water pipe (9), the water outlet end of the snake-shaped cold water pipe (9) penetrates through the partition plate (5) to enter the inside of the first accommodating groove (4), and a water saving module is arranged inside the water outlet end of the snake-shaped cold water pipe (9) enters the first accommodating groove (4).

3. A friction stir welding machine cooling structure according to claim 2 wherein: the water-saving assembly comprises a thermostat (10) which is positioned in a first accommodating groove (4) and fixedly connected with the water outlet end of a snakelike cold water pipe (9), the thermostat (10) is fixedly connected with the inner wall of a base (1), a first water diversion pipe (11) and a second water diversion pipe (12) are respectively fixedly arranged at two water outlet ends of the thermostat (10), a cooling fan (13) which has a cooling effect on water flow in the second water diversion pipe (12) is fixedly arranged at the side of the second water diversion pipe (12), and one ends, far away from the thermostat (10), of the first water diversion pipe (11) and the second water diversion pipe (12) are communicated with a cold water tank (7).

4. A friction stir welding machine cooling structure according to claim 2 wherein: an air outlet is formed in the inner wall of the base (1), an access door is hinged to the front side edge of the base (1), and a water supplementing pipe is arranged on the cold water tank (7).

5. A friction stir welding machine cooling structure according to claim 1 wherein: the rapid clamp (3) is provided with a cooling component which can further cool the rapid clamp (3).

6. The friction stir welding machine cooling structure of claim 5, wherein: the cooling assembly comprises a second water pump fixedly arranged on the base (1), the water inlet end of the second water pump is communicated with the cold water tank (7), the water outlet end of the second water pump is fixedly provided with a communicating pipe (19), one end of the communicating pipe (19), which is far away from the second water pump, is fixedly provided with a water inlet pipe (18), one end of the water inlet pipe (18), which is far away from the communicating pipe (19), is fixedly provided with a mounting plate (16) positioned on the quick clamp (3), and the mounting plate (16) is provided with a spraying assembly which plays a role in spraying water flowing out of the water inlet pipe (18).

7. The friction stir welding machine cooling structure of claim 6 wherein: the spraying assembly comprises a wedge-shaped supporting seat (14) fixedly connected with the upper end face of the quick clamp (3), the wedge-shaped supporting seat (14) is obliquely arranged, one end of the wedge-shaped supporting seat (14) facing the base plate (2) is lower than one end of the wedge-shaped supporting seat (14) away from the base plate (2), a motor (15) is fixedly arranged on the upper end face of the wedge-shaped supporting seat (14), the motor (15) is fixedly connected with a mounting plate (16), an output shaft of the motor (15) penetrates through the mounting plate (16) and is rotationally connected with the mounting plate (16), a square driving shaft (21) is fixedly arranged on the part of the output shaft penetrating through the mounting plate (16), an annular sleeve (22) is fixedly arranged on one side of the mounting plate (16) away from the motor (15), a rotary disc (17) is arranged on one side of the mounting plate (16) away from the motor (15), a hollow barrel-shaped structure with an opening bottom is fixedly arranged in the annular groove (23), the inner wall of the rotary disc (17) is fixedly connected with an annular sleeve (22), the annular groove (25) is formed by inserting and is a limit groove (27), offer a plurality of delivery port (20) that are convenient for rivers to spray on carousel (17), square drive shaft (21) wear to establish carousel (17) and with carousel (17) fixed connection, square drive shaft (21) wear to establish the part cover of going out carousel (17) and are equipped with jump ring (24), carousel (17) and square drive shaft (21) pass through jump ring (24) fixed connection.