CN108788445B - A friction stir welding equipment for stationary shaft shoulders - Google Patents

Abstract

The invention relates to the technical field of friction stir welding, and discloses a friction stir welding equipment for static shaft shoulders, comprising a base and a rectangular box, a top block is fixedly installed in the middle of the top of the base, and a top block is fixedly installed on the top of the top block. A horizontal plate, a control unit is fixedly installed on the front of the top block. The static shaft shoulder uses friction stir welding equipment. By setting the square mouth and the collection box, when the bottom of the stirring needle body is friction welded to the workpiece, the waste generated at this time will pass through the static shaft shoulder body and the stirring needle body. The gap between them enters the collection box. Since the cross-sectional area of the side of the square mouth is equal to the cross-street area of the side of the collection box, the collection box can be taken out from the stationary shoulder body, preventing the waste in the stationary shoulder body from being difficult to handle. At the same time, it also avoids the influence of the excessive waste of the stationary shaft shoulder body on the rotation of the stirring needle body, and increases the practicability of the friction stir welding equipment.

Description

A friction stir welding equipment for stationary shaft shoulders

technical field

The invention relates to the technical field of friction stir welding, in particular to a friction stir welding equipment for static shaft shoulders.

Background technique

Friction stir welding is a solid phase joining technology invented in 1991, which is especially suitable for welding of low melting point alloys such as aluminum. Friction stir welding uses the friction heat generated by the shaft shoulder and the friction between the stirring needle and the workpiece to make the material near the welded joint reach a plastic state, and the fluidity of the material increases. Under the stirring action of the stirring needle, it is moved to the back of the stirring head and cooled to form a welded joint. During the welding process, the material is not melted, and the maximum temperature is about 80% of the melting point of the material to be welded.

The usual friction stir welding is unstable during the welding process, and the flash defect is serious. Therefore, the static shoulder friction stir welding is proposed to improve the above problems. Therefore, adding an auxiliary static shoulder can not only reduce the flash, but also reduce the flash. Suppressing the extrusion of plasticized material from both sides of the rotating stirring needle prevents the formation of defects such as holes, but when the existing static shoulder friction stir welding is in operation, due to the gap between the static shaft shoulder and the stirring needle, As a result, some scraps will enter the gap during the welding process, which not only makes the later cleaning work difficult, but at the same time, the accumulation of these scraps in the static shoulder will affect the rotation of the stirring needle, and the stirring needle will be in contact with the outer surface of the workpiece for a long time. As a result, the friction damage of the stirring needle is relatively high and easy to damage. Since the stirring needle is fixedly installed, it is inconvenient for maintenance personnel to disassemble and replace it.

SUMMARY OF THE INVENTION

The invention provides a friction stir welding equipment for static shaft shoulders, which has the advantages of being easy to remove waste and easy to disassemble and replace the stirring needle, and solves the problem that the ordinary friction stir welding is unstable during the welding process and has serious flash defects. In view of the above problems, static shoulder friction stir welding is proposed to improve. Therefore, adding an auxiliary static shoulder can not only reduce the flash, but also inhibit the extrusion of plasticized material from both sides of the rotating stirring needle, preventing holes and other defects. However, when the existing static shoulder friction stir welding is in operation, due to the gap between the static shoulder and the stirring needle, some waste materials will enter the gap during the welding process, which not only makes the later cleaning work difficult, At the same time, the excessive accumulation of these wastes in the stationary shoulder will affect the rotation of the stirring needle, and the stirring needle will be in contact with the outer surface of the workpiece for a long time, resulting in high friction damage to the stirring needle and easy damage. The problem that it is inconvenient for maintenance personnel to disassemble and replace it.

The invention provides the following technical solutions: a friction stir welding equipment for static shaft shoulders, comprising a base and a rectangular box, a top block is fixedly installed in the middle of the top of the base, a horizontal plate is fixedly installed on the top of the top block, and the A control unit is fixedly installed on the front of the top block, right-angle frames are fixedly installed on both sides of the horizontal plate, the number of the right-angle frames is two, and a motion frame is fixedly installed between the tops of the two right-angle frames, A motion block is movably sleeved inside the motion frame, a connection block is fixedly installed at the bottom of the motion block, the bottom of the connection block passes through the motion frame and extends to the bottom of the motion frame, and a power box is fixedly installed, so The inside of the power box is fixedly installed with a drive motor, and one end of the output shaft of the drive motor is fixedly sleeved with a rotating shaft, and one end of the rotating shaft penetrates the power box and extends to the bottom of the power box and is located inside the rectangular box. A horizontal frame located on the back of the power box is fixedly installed between each of the right-angle frames, a short block located below the horizontal frame is fixedly installed on both sides of the power box, and a right-angle rod is fixedly installed at one end of the short block. The back of the top end of the right-angle rod is movably installed with a roller located inside the horizontal frame, the outer surface of the roller is movably connected with the inner wall of the horizontal frame, the number of the right-angle rods is two, and the bottom of the two right-angle rods is A stationary shaft shoulder body located under the rectangular box is fixedly installed, the top of the stationary shaft shoulder body is fixedly installed with an installation box located under the rectangular box, and vertical blocks are fixedly installed on both sides of the top of the inner cavity of the installation box, so A telescopic rod is movably sleeved inside the vertical block, one end of the telescopic rod penetrates the vertical block and extends to the opposite side of the vertical block, and the other end of the telescopic rod penetrates the vertical block and extends to the corresponding side of the vertical block. A contact block is fixedly installed on one side, the outer surface of the telescopic rod is movably sleeved with a flexible spring located between the contact block and the outer side of the vertical block, one end of the flexible spring is fixedly connected with the contact block, and the flexible spring is The other end is fixedly connected with the outer side of the vertical block.

Preferably, the top of the rectangular box is provided with a round opening, the outer surface of the rotating shaft is fixedly installed with side blocks located inside the rectangular box, and the rear side of the inner cavity of the rectangular box is fixedly installed on both sides of the rotating shaft and the mounting block behind the side block.

Preferably, a pull rod is movably sleeved inside the side block, one end of the pull rod penetrates the side block and the rectangular box in turn, extends to the outside of the rectangular box, and a pull button is fixedly installed, and the other end of the pull rod passes through in sequence The side block and the mounting block extend to the interior of the mounting block.

Preferably, the outer surface of the tie rod is fixedly sleeved with a lattice block located on the front side of the side block, and the outer surface of the tie rod is movably sleeved with a lattice block located between the front side of the inner cavity of the rectangular box and the front side of the lattice block. A rigid spring, one end of the rigid spring is fixedly connected with the front side of the inner cavity of the rectangular box, and the other end of the rigid spring is fixedly connected with the front side of the grid block.

Preferably, the front side of the inner cavity of the rectangular box is fixedly mounted with a block located between the tie rods, and the inside of the rectangular box is movably sleeved with a stirring needle body located below the rotating shaft.

Preferably, the bottom end of the stirring needle body penetrates the rectangular box, the installation box and the stationary shoulder body in sequence and extends to the bottom of the stationary shoulder body, and the outer surface of the stirring needle body is movable with the side corresponding to the contact block The back of the rectangular box is threadedly sleeved with a threaded rod.

Preferably, one end of the threaded rod penetrates the rectangular box and extends to the outside of the rectangular box, and a round button is fixedly installed, and the other end of the threaded rod penetrates the stirring needle body and the block and extends to the interior of the block.

Preferably, both sides of the stationary shoulder body are provided with square openings, a connecting rod is movably sleeved inside the stationary shoulder body, and one end of the connecting rod passes through the square opening and extends to the stationary shoulder body outside and fixedly installed with pull blocks.

Preferably, the other end of the connecting rod passes through the square opening and extends to the interior of the stationary shoulder body, and a collection box is fixedly installed. The number of the collection boxes is two, and one of the two collection boxes corresponds to one. The side is movably connected with the outer surface of the stirring needle body.

The present invention has the following beneficial effects:

1. The stationary shaft shoulder uses friction stir welding equipment. By setting the square mouth and the collection box, when the bottom of the stirring needle body performs friction welding on the workpiece, the waste generated at this time will pass through the stationary shaft shoulder body and the stirring needle. The gap between the bodies enters into the collection box. Since the cross-sectional area of the side of the square mouth is equal to the cross-street area of the side of the collection box, the collection box can be taken out from the stationary shoulder body, preventing the waste in the stationary shoulder body from being difficult to obtain. At the same time, it also avoids the influence of excessive waste of the stationary shaft shoulder body on the rotation of the stirring needle body, and increases the practicability of the friction stir welding equipment.

2. The stationary shaft shoulder uses friction stir welding equipment. By setting the square, threaded rod and round button, since the inside of the square and the stirring needle body are provided with threads that match the outer surface of the threaded rod, rotating the round button can make the threaded rod. The rod is detached from the inside of the block and the stirring needle body, so that the stirring needle body can be replaced, which avoids the inconvenient disassembly and replacement of the stirring needle body due to the fixed installation of the stirring needle body, thereby increasing the practicability of the friction stir welding equipment.

3. The stationary shaft shoulder uses friction stir welding equipment. By setting the pull rod, rigid spring and mounting block, when the stirring needle body is taken out, due to the elastic force of the rigid spring, the pull button can be pulled to make the other end of the pull rod from the side. The block and the installation block are separated, and the rectangular box and the side block are in a separated state at this time, and the maintenance personnel can take out the rectangular box and maintain and maintain the driving motor, thereby increasing the practicability of the friction stir welding equipment.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the structural representation of the installation box of the present invention;

Fig. 3 is the front sectional structure schematic diagram of the rectangular box of the present invention;

Fig. 4 is the top view structure schematic diagram of the rectangular box of the present invention;

Fig. 5 is the top view structure schematic diagram of the static shaft shoulder of the present invention;

Fig. 6 is a side sectional structural schematic diagram of the collecting box of the present invention.

In the figure: 1. Base; 2. Top block; 3. Control unit; 4. Horizontal plate; 5. Right angle frame; 6. Movement frame; 7. Movement block; 8. Connection block; 9. Power box; 10. Rotation Shaft; 11, rectangular box; 12, horizontal frame; 13, short block; 14, right-angle rod; 15, roller; 16, static shoulder body; 17, installation box; 18, vertical block; 19, telescopic rod; 20, Contact block; 21, flexible spring; 22, drive motor; 23, side block; 24, mounting block; 25, pull rod; 26, pull button; 27, lattice block; 28, rigid spring; 29, square block; 30, threaded rod 31, round button; 32, stirring needle body; 33, round mouth; 34, square mouth; 35, connecting rod; 36, collection box; 37, pull block.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to Fig. 1-6, a friction stir welding equipment for static shaft shoulder, including a base 1 and a rectangular box 11, the distance between the bottom of the rectangular box 11 and the top of the installation box 17 can be installed according to the actual situation, so as to facilitate the rectangular box 11 and the side block 23 can be disengaged. The front side of the inner cavity of the rectangular box 11 is fixedly installed with a block 29 located between the pull rods 25. The inner movable sleeve of the rectangular box 11 is connected with the stirring needle body located under the rotating shaft 10. 32. The threads on the inside of the stirring needle body 32 and the block 29 are adapted to the threads on the outer surface of the threaded rod 30, so that the threaded rod 30 can form a fixing effect on the stirring needle body 32, and also realizes the stirring needle. The disassembly of the main body 32 facilitates the disassembly and replacement of the maintenance personnel. The bottom end of the stirring needle body 32 penetrates the rectangular box 11, the installation box 17 and the stationary shoulder body 16 in sequence and extends to the bottom of the stationary shoulder body 16, The outer surface of the stirring needle body 32 is movably connected with the side corresponding to the contact block 20 , the back of the rectangular box 11 is threadedly sleeved with a threaded rod 30 , and one end of the threaded rod 30 penetrates the rectangular box 11 and extends to the outside of the rectangular box 11 and A round button 31 is fixedly installed, and the other end of the threaded rod 30 penetrates the stirring needle body 32 and the block 29 and extends to the interior of the block 29. The top of the rectangular box 11 is provided with a round opening 33. The function of the round opening 33 can make the side block 23 Disengaged from the rectangular box 11, and the length of the round opening 33 is greater than the length between the side blocks 23, the outer surface of the rotating shaft 10 is fixedly mounted with the side block 23 located inside the rectangular box 11, and the inner side block 23 is movably sleeved with a The pull rod 25, the outer surface of the pull rod 25 is fixedly sleeved with a grid block 27 located on the front side of the side block 23, and the outer surface of the pull rod 25 is movably sleeved with a block located between the front side of the inner cavity of the rectangular box 11 and the front side of the grid block 27. One end of the rigid spring 28 is fixedly connected to the front side of the inner cavity of the rectangular box 11, the other end of the rigid spring 28 is fixedly connected to the front side of the grid block 27, and one end of the pull rod 25 penetrates the side block 23 in turn. And the rectangular box 11 and extends to the outside of the rectangular box 11 and is fixedly installed with a pull button 26, the other end of the pull rod 25 passes through the side block 23 and the mounting block 24 in turn and extends to the interior of the mounting block 24, the inner cavity of the rectangular box 11 The rear side is fixedly installed with the installation blocks 24 located on both sides of the rotating shaft 10 and the rear side of the side block 23, the top block 2 is fixedly installed in the middle of the top of the base 1, and the horizontal plate 4 is fixedly installed on the top of the top block 2. The horizontal plate The inside of 4 is provided with long mouths located on both sides of the stirring needle body 32. The function of the long mouth is to allow the stirring needle body 32 to fall from it, so as to complete the replacement of the stirring needle body 32, and the diameter of the long mouth is larger than the stirring needle body 32. The control unit 3 is fixedly installed on the front of the top block 2, the right-angle brackets 5 are fixedly installed on both sides of the horizontal plate 4, the number of the right-angle brackets 5 is two, and the top of the two right-angle brackets 5 is fixedly installed with Motion frame 6, a motion block 7 is connected to the interior of the motion frame 6, and a connection block 8 is fixedly installed at the bottom of the motion block 7, and the bottom of the connection block 8 passes through the motion frame 6 and extends to the motion frame 6. Below the frame 6 and fixedly installed with a power box 9, the inside of the power box 9 is fixedly installed with a drive motor 22, the model of the drive motor 22 is Y100L-2, and one end of the output shaft of the drive motor 22 is fixedly sleeved with a rotating shaft 10, rotating One end of the shaft 10 penetrates the power box 9 and extends to the bottom of the power box 9 and is located inside the rectangular box 11 . Both are fixedly installed with a short block 13 located below the horizontal frame 12, one end of the short block 13 is fixedly installed with a right-angle rod 14, and the back of the top of the right-angled rod 14 is movably installed with a roller 15 inside the horizontal frame 12. When the moving block 7 drives the power When the box 9 moves left and right, the right-angle rod 14 will also drive the roller 15 to move between the inner walls of the horizontal frame 12, so that the power box 9 is more stable during the movement. The inner walls are movably connected, the number of right-angle rods 14 is two, and a stationary shaft shoulder body 16 located below the rectangular box 11 is fixedly installed between the bottoms of the two right-angled rods 14 , and square openings are provided on both sides of the stationary shaft shoulder body 16 34. Since the cross-sectional area of the side of the square mouth 34 is equal to the cross-sectional area of the side of the collection box 36, the pulling block 37 can take out the collection box 36 from the stationary shoulder body 16, and since the collection box 36 corresponds to the side An arc-shaped opening that is adapted to the outer surface of the stirring needle body 32 is provided, so that the waste material entering between the static shaft shoulder body 16 and the gap between the stirring needle body 32 will eventually enter the stirring needle body 32, and the static shaft shoulder body 16 There is a connecting rod 35 in the inner movable sleeve of the connecting rod 35, and the other end of the connecting rod 35 passes through the square port 34 and extends to the interior of the stationary shoulder body 16 and is fixedly installed with a collection box 36. The number of the collection boxes 36 is two, two The corresponding side of the collecting box 36 is movably connected with the outer surface of the stirring needle body 32, one end of the connecting rod 35 passes through the square opening 34 and extends to the outside of the stationary shoulder body 16 and is fixedly installed with a pull block 37. The stationary shoulder The top of the main body 16 is fixedly installed with a mounting box 17 located below the rectangular box 11 , and vertical blocks 18 are fixedly installed on both sides of the top of the inner cavity of the mounting box 17 . One end of the telescopic rod 19 penetrates the vertical block 18 and extends to the opposite side of the vertical block 18. The other end of the telescopic rod 19 penetrates the vertical block 18 and extends to the corresponding side of the vertical block 18 and is fixedly installed with the contact block 20. The telescopic rod 19 A flexible spring 21 located between the contact block 20 and the outer side of the vertical block 18 is movably sleeved on the outer surface of the contact block 20. The flexible spring 21 cooperates with the contact block 20 and the telescopic rod 19 so that the side corresponding to the contact block 20 faces the stirring needle body. 32 is limited, so that the stirring needle body 32 is more stable during the rotation process, and the effect of friction stir welding on the workpiece is more significant. One end of the flexible spring 21 is fixedly connected to the contact block 20, and the other end of the flexible spring 21 One end is fixedly connected with the outer side of the vertical block 18 .

When working, the operator can start the drive motor 22 through the control unit 3, and make the moving block 7 drive the drive motor 22 to move left and right. When the drive motor 22 runs, the rotating shaft 10 will drive the stirring needle body 32 to rotate through the rectangular box 11, and The workpiece is friction welded. When the friction stir equipment finishes running, the operator can pull the pull block 37 to take out the collection box 36 from the square mouth 34, and process the waste in the collection box 36. At the same time, when the stirring needle body 32 When the wear is serious, the operator can use the control unit 3 to control the stirring needle body 32 to move to just above the long opening opened in the horizontal plate 4, and rotate the knob 31 to make the other end of the threaded rod 30 move away from the block 29 and the stirring needle body. At this time, due to the action of gravity, the stirring needle body 32 will fall through the long mouth, and the operator can pull the pull button 26 to make the other end of the pull rod 25 disengage from the side block 23 and the mounting block 24. At this time, it can be realized The rectangular box 11 is separated from the side block 23 so that the rectangular box 11 can be taken out, and the driving motor 22 can be cleaned and maintained.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus.

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

Claims (9)

1. The utility model provides a static friction stir welding equipment for shaft shoulder, includes base (1) and rectangle case (11), its characterized in that: the middle fixed mounting on base (1) top has kicking block (2), the top fixed mounting of kicking block (2) has diaphragm (4), the positive fixed mounting of kicking block (2) has control unit (3), the equal fixed mounting in both sides of diaphragm (4) has right angle frame (5), the quantity of right angle frame (5) is two, two fixed mounting has motion frame (6) between the top of right angle frame (5), motion block (7) have been cup jointed in the inside activity of motion frame (6), the bottom fixed mounting of motion block (7) has connecting block (8), the bottom of connecting block (8) passes motion frame (6) and extends to the below of motion frame (6) and fixed mounting has headstock (9), the inside fixed mounting of headstock (9) has driving motor (22), the fixed cover of the one end of driving motor (22) output shaft has been cup jointed axis of rotation (10), the one end of axis of rotation (10) runs through headstock (9) and extends to the below of headstock (9) and is located the inside of rectangle case (11), two fixed mounting has crossbearer (12) that is located the headstock (9) back between right angle frame (5), the equal fixed mounting in both sides of headstock (9) has short piece (13) that is located crossbearer (12) below, the one end fixed mounting of short piece (13) has right angle pole (14), the back movable mounting on right angle pole (14) top has gyro wheel (15) that are located crossbearer (12) inside, the surface of gyro wheel (15) and the inner wall swing joint of crossbearer (12), the quantity of right angle pole (14) is two, two fixed mounting has static shoulder body (16) that are located rectangle case (11) below between the bottom of right angle pole (14), the top fixed mounting of static shoulder body (16) has install (17) that are located rectangle case (11) below, the equal fixed mounting in both sides at install bin (17) inner chamber top has riser (18), telescopic link (19) have been cup jointed in the inside activity of riser (18), one end of telescopic link (19) is run through riser (18) and is extended to one side that riser (18) carried on the back mutually, the other end of telescopic link (19) is run through riser (18) and is extended to one side that riser (18) is corresponding and fixed mounting has contact piece (20), the surface activity of telescopic link (19) is cup jointed and is located flexible spring (21) between contact piece (20) and riser (18) the outside, the one end and the contact piece (20) fixed connection of flexible spring (21), the other end and the outside fixed connection of riser (18) of flexible spring (21).

2. The friction stir welding apparatus for a stationary shoulder of claim 1 wherein: round mouth (33) have been seted up at the top of rectangle case (11), the fixed surface of axis of rotation (10) installs side piece (23) that are located rectangle case (11) inside, the rear portion fixed mounting of rectangle case (11) inner chamber has installation piece (24) that are located axis of rotation (10) both sides and side piece (23) rear side.

3. The friction stir welding apparatus for a stationary shoulder of claim 2 wherein: the inside activity of side piece (23) has cup jointed pull rod (25), the one end of pull rod (25) runs through side piece (23) and rectangle case (11) in proper order and extends to the outside and the fixed mounting of rectangle case (11) and has pull button (26), the other end of pull rod (25) passes side piece (23) and installation piece (24) in proper order and extends to the inside of installation piece (24).

4. A friction stir welding apparatus for a stationary shoulder as set forth in claim 3 wherein: the outer fixed surface of pull rod (25) cup joints check piece (27) that are located side piece (23) front side, the outer surface activity of pull rod (25) cup joints rigid spring (28) that are located between rectangle case (11) inner chamber front side portion and check piece (27) front side portion, the one end of rigid spring (28) and the front side portion fixed connection of rectangle case (11) inner chamber, the other end of rigid spring (28) and the front side portion fixed connection of check piece (27).

5. The friction stir welding apparatus for a stationary shoulder of claim 4 wherein: the front side part of the inner cavity of the rectangular box (11) is fixedly provided with square blocks (29) positioned between the pull rods (25), and the stirring needle body (32) positioned below the rotating shaft (10) is movably sleeved in the rectangular box (11).

6. The friction stir welding apparatus for a stationary shoulder of claim 5, wherein: the bottom of stirring pin body (32) runs through rectangle case (11), install bin (17) and static shaft shoulder body (16) in proper order and extends to the below of static shaft shoulder body (16), the surface of stirring pin body (32) and the corresponding one side swing joint of contact piece (20), the back screw thread cover of rectangle case (11) has threaded rod (30).

7. The friction stir welding apparatus for a stationary shoulder of claim 6 wherein: one end of the threaded rod (30) penetrates through the rectangular box (11) and extends to the outside of the rectangular box (11), and a round button (31) is fixedly mounted on the outer end of the threaded rod (30), and the other end of the threaded rod (30) penetrates through the stirring pin body (32) and the square block (29) and extends to the inside of the square block (29).

8. The friction stir welding apparatus for a stationary shoulder of claim 1 wherein: square mouth (34) have all been seted up to the both sides of static shaft shoulder body (16), connecting rod (35) have been cup jointed in the inside activity of static shaft shoulder body (16), square mouth (34) are passed and outside and fixed mounting that extend to static shaft shoulder body (16) pull piece (37) to the one end of connecting rod (35).

9. The friction stir welding apparatus for a stationary shoulder of claim 8, wherein: the other end of the connecting rod (35) penetrates through the square opening (34) and extends to the inside of the static shaft shoulder body (16), the two collecting boxes (36) are fixedly mounted on the static shaft shoulder body, and one sides, corresponding to the two collecting boxes (36), of the two collecting boxes are movably connected with the outer surface of the stirring pin body (32).

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