CN112317953A

CN112317953A - Revolving body friction stir welding supporting device

Info

Publication number: CN112317953A
Application number: CN202011249509.1A
Authority: CN
Inventors: 刘金明; 张应东; 旷刘嘉辉
Original assignee: Hunan Kunding Cnc Technology Co ltd
Current assignee: Hunan Kunding Cnc Technology Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-02-05

Abstract

The invention discloses a revolving body friction stir welding supporting device, which relates to the field of friction stir welding and comprises a base, wherein two horizontal sliding rails are arranged at one end of the upper surface of the base, a second fixing seat is fixedly connected to one side position, close to the sliding rails, of the upper surface of the base, a sliding block is connected to one end of each sliding rail in a sliding mode, a first fixing seat is fixedly connected to the upper end of each sliding block, and a pressing block is arranged in the middle of the upper surface of each first fixing seat. According to the invention, the air compressor is used for inflating and pressurizing the interior of the clamping mechanism, so that the piston body is completely ejected out and acts on the annular weldment, the clamping mode can clamp weldments with different outer diameters, the weldments are uniformly stressed in the clamping process, a local loose state cannot occur, the weldments are further more stable, the pressing block is moved through the electric hydraulic telescopic rod, the weldment clamping operation with different lengths can be processed, and the side force influence of friction stir welding is also reduced.

Description

Revolving body friction stir welding supporting device

Technical Field

The invention relates to the field of friction stir welding, in particular to a revolving body friction stir welding supporting device.

Background

Friction welding is a method in which the end parts are brought into a thermoplastic state by the heat generated by the mutual movement and friction of the end surfaces of the welded parts, and then are rapidly upset forged to complete the welding. Friction welding can be used for conveniently connecting same or different materials, including metal, partial metal matrix composite materials, ceramics and plastics, has been applied in the manufacturing industry for more than 40 years, and has been widely applied in engineering due to high productivity and good quality, but the welding objects are mainly rotary parts, although other forms of friction welding technology are also available to overcome the limitation of the geometric shape of the welded piece or improve the productivity, such as phase friction welding, radial friction welding, linear friction welding and the like, but the practical application is very few.

The large-scale solid of revolution processing part has the heaviness nature of self, and friction stir welding has huge upset forging power when using, and the welding seam side component that the stirring head brought in addition needs the frock support of welding seam both sides to overcome, when carrying out friction stir welding to the weldment, supports anchor clamps especially crucial, if can not better centre gripping weldment, then can lead to the weldment to damage.

Disclosure of Invention

The invention aims to: the revolving body friction stir welding supporting device is provided for solving the problems that a large revolving body processing part has self thickness and has huge upsetting force when in use, in addition, the component force on the side of a welding line caused by a stirring head needs to be overcome by tool supports on two sides of the welding line, when the friction stir welding is carried out on the welding piece, a supporting clamp is particularly critical, and if the welding piece cannot be well clamped, the welding piece can be damaged.

In order to achieve the purpose, the invention provides the following technical scheme: a rotator friction stir welding supporting device comprises a base, wherein one end of the upper surface of the base is provided with two horizontal sliding rails, a second fixing seat is fixedly connected to one side position of the upper surface of the base, which is close to the sliding rails, a sliding block is slidably connected to one end of the sliding rails, a first fixing seat is fixedly connected to the upper end of the sliding block, a pressing block is arranged in the middle of the upper surface of the first fixing seat, a clamping mechanism is fixedly connected to the middle of the upper surface of the second fixing seat, a welding part is connected between the pressing block and the clamping mechanism in a penetrating manner, the top end of the clamping mechanism is connected with a valve, an air compressor is installed at the position, which is close to the second fixing seat, of the upper surface of the base, an electric hydraulic telescopic rod is installed at one side position, which is close to the air compressor, the bearing block is characterized in that an inner groove is formed in the middle of the front surface of the bearing block, a shaft lever is connected to the middle of the bottom end of the inner groove in a penetrating mode, a clamping block is placed inside the inner groove, and a threaded hole is formed in the middle of one end face of the clamping block.

Preferably, fixture is including ring body, clamping area, gas storage area, air inlet, gas injection passageway and piston body, the air inlet is located the outer wall top department of ring body, the gas storage area is linked together with the air inlet in the inside of ring body, the clamping area is located the inboard of ring body, the gas injection passageway is located between gas storage area and the clamping area, piston body sliding connection is in the medial extremity of gas injection passageway.

Preferably, the piston body comprises a sliding block, a pressing plate, anti-skidding cotton and an air pushing plate, the air pushing plate is located at one end of the sliding block, the pressing plate is located at the other end of the sliding block, and the anti-skidding cotton is paved at the outer side end of the pressing plate.

Preferably, the slide rail and the base are fixedly connected through a screw, the first fixing seat and the slide block are fixedly connected through welding, and the second fixing seat and the base are fixedly connected through welding.

Preferably, the valve is fixedly connected with the air inlet through threads, a sealing ring is arranged between the connecting position of the valve and the air inlet, and the air inlet end of the valve is communicated with the air exhaust end of the air compressor through a connecting pipe.

Preferably, a sealing gasket is arranged at the joint of the piston body and the gas injection channel, twelve piston bodies are arranged on the piston body, and the twelve piston bodies are distributed at equal angles to form a circle.

Preferably, the pressing block is rotatably connected with the shaft rod through a bearing, an external thread is arranged on the outer wall of the shaft rod, and the shaft rod is fixedly connected with the threaded hole through a thread.

Preferably, the fixed block passes through welded fastening with first fixing base and is connected, the fixed block passes through naked two fixed connection with electric hydraulic telescopic handle, electric hydraulic telescopic handle passes through bolt fixed connection with the second fixing base.

Compared with the prior art, the invention has the beneficial effects that: the clamping mechanism is inflated and pressurized by the air compressor, so that the piston body is completely ejected out and acts on the annular weldment, the weldment with different outer diameters can be clamped by the clamping mode, the weldment is uniformly stressed in the clamping process, a local loose state cannot occur, the weldment is further stable, the pressing block is moved by the electric hydraulic telescopic rod, the weldment clamping operation with different lengths can be processed, the side force influence of friction stir welding is also reduced, the weldment can be rotated by rotating the shaft rod, and a more appropriate welding seam position between the two weldments can be found.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a base structure of the present invention;

FIG. 3 is a schematic view of the internal structure of the clamping mechanism of the present invention;

FIG. 4 is an enlarged view of the area A of the present invention;

FIG. 5 is a schematic view of a piston body construction of the present invention;

FIG. 6 is a schematic diagram of a pressing block according to the present invention;

FIG. 7 is a schematic diagram of a pressing block according to the present invention;

FIG. 8 is a schematic view of a card diameter block structure according to the present invention;

fig. 9 is a schematic structural view of the electric hydraulic telescopic rod of the present invention.

In the figure: 1. a base; 2. a first fixed seat; 3. a fixed block; 4. a slide rail; 5. a pressing block; 6. welding parts; 7. a valve; 8. a clamping mechanism; 801. a ring body; 802. a clamping area; 803. a gas storage area; 804. an air inlet; 805. a gas injection channel; 806. a piston body; 8061. a slider; 8062. pressing a plate; 8063. anti-skid cotton; 8064. a pneumatic push plate; 9. a second fixed seat; 10. an air compressor; 11. an electric hydraulic telescopic rod; 12. a slider; 13. a diameter clamping block; 14. an inner tank; 15. a shaft lever; 16. a threaded bore.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being 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 "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention based on its overall structure.

Referring to fig. 1-9, a revolving body friction stir welding supporting device comprises a base 1, two horizontal sliding rails 4 are arranged at one end of the upper surface of the base 1, a second fixing seat 9 is fixedly connected at a position of one side of the upper surface of the base 1 close to the sliding rails 4, a sliding block 12 is slidably connected at one end of the sliding rails 4, a first fixing seat 2 is fixedly connected at the upper end of the sliding block 12, a pressing block 5 is arranged at the middle part of the upper surface of the first fixing seat 2, a clamping mechanism 8 is fixedly connected at the middle part of the upper surface of the second fixing seat 9, a welding piece 6 is penetratingly connected between the pressing block 5 and the clamping mechanism 8, a valve 7 is connected at the top end of the clamping mechanism 8, an air compressor 10 is arranged at a position of the upper surface of the base 1 close to the second fixing seat 9, and an electric hydraulic telescopic rod 11 is, the fixed block 3 is fixedly connected with the contraction end of the electric hydraulic telescopic rod 11, the inner groove 14 is formed in the middle of the front surface of the pressing block 5, the shaft rod 15 is connected to the middle of the bottom end of the inner groove 14 in a penetrating mode, the clamping diameter block 13 is placed inside the inner groove 14, and a threaded hole 16 is formed in the middle of one end face of the clamping diameter block 13.

As a preferred embodiment of the present invention, the clamping mechanism 8 includes a ring body 801, a clamping area 802, a gas storage area 803, a gas inlet 804, a gas injection channel 805, and a piston body 806, the gas inlet 804 is located at the top end of the outer wall of the ring body 801, the gas storage area 803 is located inside the ring body 801 and is communicated with the gas inlet 804, the clamping area 802 is located inside the ring body 801, the gas injection channel 805 is located between the gas storage area 803 and the clamping area 802, the piston body 806 is slidably connected to the inner end of the gas injection channel 805, a sealing gasket is disposed at the connection between the piston body 806 and the gas injection channel 805, the piston body 806 is totally twelve, twelve piston bodies 806 are distributed at equal angles to form a circle, and clamp the weldments 6 with different outer diameters, and during the tightening process, the weldments 6 are uniformly stressed, and are not in a local loose state, thereby.

As a preferred embodiment of the present invention, the piston body 806 includes a sliding block 8061, a pressing plate 8062, an anti-skid cotton 8063, and an air pushing plate 8064, the air pushing plate 8064 is located at one end of the sliding block 8061, the pressing plate 8062 is located at the other end of the sliding block 8061, and the anti-skid cotton 8063 is laid on an outer end of the pressing plate 8062, so that the clamped weldment 6 can be more stable.

As a preferred embodiment of the present invention, the sliding rail 4 is fixedly connected with the base 1 through a screw, the first fixing seat 2 is fixedly connected with the sliding block 12 through welding, and the second fixing seat 9 is fixedly connected with the base 1 through welding, so that the pressing block 5 can move back and forth conveniently.

As a preferred embodiment of the present invention, the valve 7 is fixedly connected to the air inlet 804 through a thread, a sealing ring is disposed between the connection position of the valve 7 and the air inlet 804, and the air inlet end of the valve 7 is communicated with the air outlet end of the air compressor 10 through a connection pipe, so as to ensure the air tightness of the air storage area 803.

As a preferred embodiment of the invention, the pressing block 5 is rotatably connected with the shaft rod 15 through a bearing, the outer wall of the shaft rod 15 is provided with an external thread, the shaft rod 15 is fixedly connected with the threaded hole 16 through a thread, the welding piece 6 can be rotated by rotating the shaft rod 15, and a more appropriate welding seam position between the two welding pieces can be found.

As a preferred embodiment of the invention, the fixed block 3 is fixedly connected with the first fixed seat 2 by welding, the fixed block 3 is fixedly connected with the electric hydraulic telescopic rod 11 by naked double fixing, the electric hydraulic telescopic rod 11 is fixedly connected with the second fixed seat 9 by bolts, and the pressing block 5 is moved by the electric hydraulic telescopic rod 11, so that the clamping operation of welding pieces 6 with different lengths can be processed, and the side force component influence of friction stir welding is also reduced.

The working principle is as follows: when the invention is used, the clamping diameter block 13 with corresponding size is installed according to the inner diameter of a welding piece 6, after the clamping diameter block 13 is fixed on the shaft rod 15, the welding piece 6 passes through the clamping mechanism 8 and is pushed to the pressing block 5 to be clamped and connected, the distance between the pressing block 5 and the clamping mechanism 8 is adjusted through the electric hydraulic telescopic rod 11, so that the distance between the pressing block 5 and the clamping mechanism 8 is just matched with the length of the welding piece 6, the shaft rod 15 is rotated after the adjustment is finished, the welding seam between the two welding pieces 6 is adjusted, then the air storage area 803 in the clamping mechanism 8 is inflated by starting the air compressor 10, the valve 7 can be closed when the air pressure in the air storage area 803 reaches a certain value, the air seal is stored in the air storage area 803, at the moment, the piston body 806 is completely ejected out under the influence of the air pressure, a circle of the welding piece 806 is fixed by twelve piston bodies, the fixed support of the rotary body is greatly improved, the problem of current annular weldment not fixed well is solved.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a solid of revolution friction stir welding strutting arrangement, includes base (1), its characterized in that: the air compressor fixing device is characterized in that two horizontal sliding rails (4) are arranged at one end of the upper surface of the base (1), the upper surface of the base (1) is close to one side position of the sliding rails (4) to form a second fixing seat (9), a sliding block (12) is connected to one end of the sliding rails (4) in a sliding mode, a first fixing seat (2) is fixedly connected to the upper end of the sliding block (12), a pressing block (5) is arranged in the middle of the upper surface of the first fixing seat (2), a clamping mechanism (8) is fixedly connected to the middle of the upper surface of the second fixing seat (9), a welding piece (6) is connected between the pressing block (5) and the clamping mechanism (8) in a penetrating mode, a valve (7) is connected to the top end of the clamping mechanism (8), an air compressor (10) is installed at a position, close to the second fixing seat (9), and an electric hydraulic telescopic rod (10) is installed at one side position, close to the 11) The hydraulic support device is characterized in that a fixed block (3) is fixedly connected to the contraction end of the electric hydraulic telescopic rod (11), an inner groove (14) is formed in the middle of the front surface of the pressing block (5), a shaft rod (15) is connected to the middle of the bottom end of the inner groove (14) in a penetrating mode, a clamping block (13) is placed inside the inner groove (14), and a threaded hole (16) is formed in the middle of one end face of the clamping block (13).

2. A rotational body friction stir welding support device according to claim 1, characterized in that: the clamping mechanism (8) comprises a ring body (801), a clamping area (802), a gas storage area (803), a gas inlet (804), a gas injection channel (805) and a piston body (806), wherein the gas inlet (804) is located at the top end of the outer wall of the ring body (801), the gas storage area (803) is located inside the ring body (801) and communicated with the gas inlet (804), the clamping area (802) is located on the inner side of the ring body (801), the gas injection channel (805) is located between the gas storage area (803) and the clamping area (802), and the piston body (806) is connected to the inner side end of the gas injection channel (805) in a sliding mode.

3. A rotational body friction stir welding support device according to claim 2, characterized in that: the piston body (806) comprises a piston body (806), a pressing plate (8062), anti-skidding cotton (8063) and an air pushing plate (8064), the air pushing plate (8064) is located at one end of the sliding block (8061), the pressing plate (8062) is located at the other end of the sliding block (8061), and the anti-skidding cotton (8063) is paved on the outer side end of the pressing plate (8062).

4. A rotational body friction stir welding support device according to claim 1, characterized in that: slide rail (4) pass through screw fixed connection with base (1), first fixing base (2) pass through welded fastening with slider (12) and are connected, second fixing base (9) pass through welded fastening with base (1) and are connected.

5. A rotational body friction stir welding support device according to claim 1, characterized in that: the valve (7) is fixedly connected with the air inlet (804) through threads, a sealing ring is arranged between the connecting position of the valve (7) and the air inlet (804), and the air inlet end of the valve (7) is communicated with the air exhaust end of the air compressor (10) through a connecting pipe.

6. A rotational body friction stir welding support device according to claim 2, characterized in that: the joint of the piston body (806) and the gas injection channel (805) is provided with a sealing gasket, twelve piston bodies (806) are arranged, and the twelve piston bodies (806) are distributed at equal angles to form a circle.

7. A rotational body friction stir welding support device according to claim 1, characterized in that: the pressing block (5) is rotatably connected with the shaft lever (15) through a bearing, an external thread is arranged on the outer wall of the shaft lever (15), and the shaft lever (15) is fixedly connected with the threaded hole (16) through a thread.

8. A rotational body friction stir welding support device according to claim 1, characterized in that: fixed block (3) are connected through welded fastening with first fixing base (2), fixed block (3) are through naked two fixed connection with electric hydraulic telescopic handle (11), electric hydraulic telescopic handle (11) are through bolt fixed connection with second fixing base (9).