Friction stir welding static shaft shoulder device for water cooling plate welding

Abstract

The utility model relates to a friction stir welding static shaft shoulder device for welding a water cooling plate, which is arranged on a welding equipment main body, the welding equipment main body is provided with a driving shaft, one end of the driving shaft along the axial direction is provided with a blind hole, two transverse holes are coaxially arranged along the vertical axial direction in a penetrating way, the two transverse holes are communicated with the blind hole, and the friction stir welding static shaft shoulder device comprises a shaft shoulder jacket and a main shaft; when the stirring needle or the main shaft needs to be replaced, the two inserting rods are driven by the driving piece to synchronously and relatively move, so that the inserting rods retreat from the transverse holes and slide back into the horizontal holes, and connection between the main shaft and the driving shaft is relieved. The spindle is taken out from the blind hole and the shaft shoulder outer sleeve, the stirring needle or the spindle can be conveniently replaced, in the whole working process, the spindle and the driving shaft are rapidly disassembled and assembled through cooperation of the insertion rod and the transverse hole, the working efficiency is effectively improved, meanwhile, the problem of thread slipping caused by bolt connection is solved, and the connection reliability is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of friction stir welding, and particularly relates to a friction stir welding static spindle shoulder device for water-cooled plate welding. BACKGROUND

[0002] In the manufacturing process of a water-cooled plate, friction stir welding technology is widely used in the sealing welding process of the water-cooled plate due to its advantages of small welding deformation, high joint strength, and no need for filler material. As a key component in the friction stir welding equipment, the static spindle shoulder directly affects the welding quality in terms of the matching precision and connection stability of the spindle and the stirring needle. In the prior art, the connection between the spindle of the friction stir welding static spindle shoulder device and the driving shaft of the welding equipment body is usually achieved by bolt fixation. However, in actual welding operations, the stirring needle needs to be frequently replaced due to the fast wear of the stirring needle caused by water-cooled plate welding. When the bolt fixation is used, the disassembly and assembly process needs to be performed multiple times by using tools, which is complicated and time-consuming, reduces the welding efficiency, and causes the bolt and the threaded hole to be easily stripped during repeated disassembly and assembly, thereby affecting the connection reliability. SUMMARY

[0003] The utility model discloses a kind of friction stir welding static spindle shoulder devices for water-cooled plate welding, to solve the problem that the prior art exists in actual welding operations, since water-cooled plate welding is fast to the wear of stirring needle, stirring needle or spindle needs to be frequently replaced, when bolt fixation is used, disassembly and assembly process needs to be performed multiple times by using tools, which is complicated and time-consuming, reduces the welding efficiency, and in repeated disassembly and assembly process, bolt and threaded hole are easily stripped, thereby affecting the connection reliability.

[0004] To achieve the above purpose, the utility model provides a kind of friction stir welding static spindle shoulder devices for water-cooled plate welding, install on welding equipment body, welding equipment body has driving shaft, driving shaft is along its axial end and is opened blind hole, and is opened two transverse holes along vertical axial through coaxial, two transverse holes are all communicated with blind hole, including spindle shoulder cover and spindle;

[0005] One end of spindle shoulder cover is fixedly connected with welding equipment body, and installation hole is opened in the other end;

[0006] One end of spindle is detachable stirring needle, and the other end is opened ladder hole along its axial coaxial, two horizontal holes are opened through coaxial along vertical axial of spindle, two horizontal holes are all communicated with ladder hole;

[0007] Spindle is located in spindle shoulder cover, and stirring needle is set through installation hole;

[0008] Spindle is inserted into blind hole, and horizontal hole is coaxially arranged with transverse hole;

[0009] The two insertion rods are synchronously moved or moved away from each other through the driving member, so that the insertion rods can be inserted into the horizontal hole.

[0010] Preferably, the stepped hole comprises coaxially arranged upper and lower holes.

[0011] The driving member comprises a lifting rod and a column, and a circular inclined surface is arranged at the top end of the lifting rod and coaxially connected to the column.

[0012] The lifting rod is slidably arranged in the lower hole.

[0013] The bottom wall of the column is symmetrically provided with two wedge-shaped grooves, and the opposite side walls of the wedge-shaped grooves are provided with first inclined surfaces.

[0014] Each insertion rod is provided with a notch and a second inclined surface at one end thereof, the notch is provided with a third inclined surface, and the two second inclined surfaces are located on both sides of the circular inclined surface and abut against the circular inclined surface.

[0015] Each third inclined surface abuts against each first inclined surface.

[0016] The bottom end of the lifting rod is connected to a lifting mechanism for driving the lifting rod to lift.

[0017] Preferably, the lifting mechanism comprises a sliding block, a connecting rod and a bolt.

[0018] The bottom end of the lifting rod is obliquely provided with a fourth inclined surface, the fourth inclined surface is provided with a sliding groove, the sliding block is slidably arranged in the sliding groove, one end of the connecting rod is fixedly connected to the sliding block, and the other end of the connecting rod is fixedly provided with a bearing.

[0019] The threaded hole is coaxially arranged in the main shaft, the lower hole is communicated with the threaded hole, the bolt is screwed into the threaded hole, and the outer ring of the bearing is fixedly connected to the bolt.

[0020] Preferably, the end of the bolt away from the bearing is provided with a cross groove or a slot.

[0021] Preferably, the shaft shoulder sleeve comprises an upper cylinder, a lower cylinder and a pipe sleeve, an inner thread section is arranged at the inner annular wall of the pipe sleeve, and one end of the inner thread section is coaxially connected to a secondary ring plate.

[0022] An outer thread section is arranged at the bottom end of the upper cylinder, and the top end of the lower cylinder is coaxially sleeved with a main ring plate.

[0023] The inner thread section is screwed with the outer thread section, the upper wall of the main ring plate abuts against the bottom end of the lower cylinder, and the lower wall of the main ring plate abuts against the secondary ring plate.

[0024] Preferably, the top end of the upper cylinder is welded with a flange plate, and the flange plate is detachably arranged on the main body of the welding device.

[0025] Preferably, a plurality of friction grooves are arranged at the outer annular wall of the pipe sleeve.

[0026] Preferably, the upper cylinder and the lower cylinder are provided with a plurality of heat dissipation holes along the circumferences thereof.

[0027] The above scheme has the following beneficial effects: firstly, the two horizontal holes on the main shaft are coaxially aligned with the two transverse holes on the driving shaft. Then, the end of the main shaft not connected with the stirring needle is inserted into the blind hole of the driving shaft of the welding equipment body until the end of the main shaft abuts against the end of the blind hole, and then the two inserting rods are driven to move away from each other in the horizontal holes by the driving member, so that the inserting rods are slid into the corresponding transverse holes, and the quick connection and fixation of the main shaft and the driving shaft are completed. Further, the stirring needle detachably connected with the end of the main shaft is inserted through the mounting hole, so that the main shaft is located in the shaft shoulder sleeve, and then the end of the shaft shoulder sleeve is fixedly connected with the welding equipment body. At this time, the welding work stage is entered, and after the welding equipment body is started, the driving shaft drives the main shaft to rotate through the cooperation of the inserting rods and the horizontal holes and the transverse holes, and the main shaft in turn drives the stirring needle to rotate synchronously. Since the shaft shoulder sleeve is fixed with the welding equipment body, the shaft shoulder sleeve remains stationary during the welding process, and the stirring needle performs friction stir welding work on the water-cooled plate through the mounting hole. When the stirring needle or the main shaft needs to be replaced, the two inserting rods are driven to move synchronously relative to each other by the driving member, so that the inserting rods are withdrawn from the transverse holes and slid back into the horizontal holes, the connection between the main shaft and the driving shaft is released, and then the main shaft is taken out of the blind hole and the shaft shoulder sleeve, so that the stirring needle or the main shaft can be conveniently replaced. After the replacement is completed, the above installation steps are followed to reassemble and use again. In the whole working process, the cooperation of the inserting rods and the transverse holes realizes the quick disassembly and assembly of the main shaft and the driving shaft, effectively improves the work efficiency, avoids the thread slipping problem caused by bolt connection, and guarantees the connection reliability. BRIEF DESCRIPTION OF DRAWINGS

[0028] The utility model will be explained in further detail below in combination with the drawings and specific embodiments.

[0029] Figure 1 is the structure schematic diagram of the welding equipment body of prior art;

[0030] Figure 2 is the structure schematic diagram of the welding equipment body of prior art;

[0031] Figure 3 is the structure schematic diagram of the welding equipment body of prior art;

[0032] Figure 4 is the structure schematic diagram of the welding equipment body of prior art;

[0033] Figure 5 is the structure schematic diagram of the welding equipment body of prior art; Figure 4

[0034] Figure 6 is the structure schematic diagram of the welding equipment body of prior art;

[0035] Figure 7 ​It is the explosion state structure schematic view of the utility model.

[0036] Mark explanation

[0037] 1, welding equipment main body;2, drive shaft;3, blind hole;4, horizontal hole;10, shaft shoulder sleeve;11, mounting hole;12, upper cylinder;13, lower cylinder;14, pipe sleeve;15, vice ring plate;120, outer thread section;131, main ring plate;16, flange;141, friction groove;100, heat dissipation hole;20, main shaft;21, stirring needle;201, stepped hole;2011, upper hole;2012, lower hole;202, horizontal hole;203, threaded hole;30, plug rod;31, notch;311, second inclined surface;312, third inclined surface;40, driving part;41, lifting rod;42, column;410, annular inclined surface;411, fourth inclined surface;4110, chute;420, wedge-shaped groove;4210, first inclined surface;43, lifting mechanism;431, sliding block;432, connecting rod;433, bolt;4331, slot. Specific implementation

[0038] The technical solutions in the embodiments of the utility model will be clearly and completely described in connection with the drawings in the embodiments of the utility model. In the following description, a large number of specific details are set forth in order to facilitate a full understanding of the utility model, but the utility model can also be implemented in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the connotation of the utility model, therefore, the utility model is not limited by the specific embodiments disclosed below.

[0039] Embodiment:

[0040] As Figures 1-7 shown, the embodiment provides a friction stir welding static shoulder device for water-cooled plate welding, which is installed on the welding equipment main body 1 of the prior art, the welding equipment main body 1 has a drive shaft 2, the blind hole 3 is formed at one end of the drive shaft 2 along the axial direction, and two horizontal holes 4 are coaxially formed along the vertical axial direction, the two horizontal holes 4 are in communication with the blind hole 3 and symmetrically arranged on both sides of the blind hole, and the friction stir welding static shoulder device comprises a shaft shoulder sleeve 10 and a main shaft 20; it should be pointed out here that the welding equipment main body 1 of the utility model adopts the prior art, so it will not be described in detail, as Figures 1-4 , Figure 7 shown, the shaft shoulder sleeve 10 comprises an upper cylinder 12, a lower cylinder 13 and a pipe sleeve 14, an inner thread section (not marked) is formed in the inner ring wall circumference of the pipe sleeve 14, and the pipe sleeve 14 is coaxially butted with the vice ring plate 15 at one end. The outer thread section 120 is formed in the bottom end circumference of the upper cylinder 12, and the main ring plate 131 is coaxially sleeved on the top end ring wall of the lower cylinder 13. The inner thread section is screwed with the outer thread section 120, as Figure 4As shown, the upper wall of the main ring plate 131 abuts against the bottom end of the lower cylinder 13, and the lower wall of the main ring plate 131 abuts against the auxiliary ring plate 15. The top end of the upper cylinder 12 is welded with a flange plate 16, which is detachably arranged on the welding equipment body 1. The design of the flange plate 16 helps to disassemble the prior art welding equipment body 1. The outer ring wall of the sleeve 14 is circumferentially provided with a plurality of friction grooves 141. The friction grooves 141 facilitate easy operation by the operator. The upper cylinder 12 and the lower cylinder 13 are circumferentially provided with a plurality of heat dissipation holes 100 along the axial direction thereof. The heat dissipation holes 100 facilitate heat dissipation of the device. One end of the shaft shoulder sleeve 10 is fixedly connected with the welding equipment body 1, and the other end of the shaft shoulder sleeve 10 is provided with a mounting hole 11. One end of the main shaft 20 is detachably provided with a stirring needle 21, and the other end of the main shaft 20 is provided with a stepped hole 201 along the axial direction thereof. The main shaft 20 is provided with two horizontal holes 202 coaxially penetrating the main shaft 20 perpendicularly to the axial direction thereof, and the two horizontal holes 202 communicate with the stepped hole 201. The two horizontal holes 202 are symmetrically arranged on both sides of the stepped hole 201. The main shaft 20 is inserted into the blind hole 3, and one end of the main shaft 20 abuts against one end of the blind hole 3. The horizontal hole 202 is coaxially arranged with the transverse hole 4. Each horizontal hole 202 is slidably provided with an insertion rod 30, and the two insertion rods 30 are synchronously moved or moved away from each other through the driving member 40, so that the insertion rod 30 can be inserted into the transverse hole 4.

[0041] In the installation stage, first, the two horizontal holes 202 on the main shaft 20 are coaxially aligned with the two transverse holes 4 on the drive shaft 2. Then, the end of the main shaft 20 not connected to the stirring needle 21 is inserted into the blind hole 3 of the drive shaft 2 of the welding equipment body 1 until the end of the main shaft 20 abuts against the end of the blind hole 3, and then the two insertion rods 30 are driven to move away from each other in the horizontal holes 202 by the driving member 40, so that the insertion rods 30 slide into the corresponding transverse holes 4, completing the quick connection and fixation of the main shaft 20 and the drive shaft 2. Further, the detachably connected stirring needle 21 at one end of the main shaft 20 is inserted through the mounting hole 11, so that the main shaft 20 is located in the shaft shoulder sleeve 10, and then one end of the shaft shoulder sleeve 10 is fixedly connected with the welding equipment body 1. At this time, the welding work stage is entered, and after the welding equipment body 1 is started, the drive shaft 2 drives the main shaft 20 to rotate through the cooperation of the insertion rods 30 and the horizontal holes 202 and the transverse holes 4, and the main shaft 20 in turn drives the stirring needle 21 to rotate synchronously. Since the shaft shoulder sleeve 10 is fixedly connected with the welding equipment body 1, it remains stationary during the welding process, and the stirring needle 21 passes through the mounting hole 11 to perform friction stir welding work on the water-cooled plate. When the stirring needle 21 or the main shaft 20 needs to be replaced, the two insertion rods 30 are driven to move relative to each other by the driving member 40, so that the insertion rods 30 are withdrawn from the transverse holes 4 and slide back into the horizontal holes 202, thereby releasing the connection between the main shaft 20 and the drive shaft 2. Then, the main shaft 20 is taken out of the blind hole 3 and the shaft shoulder sleeve 10, so that the stirring needle 21 or the main shaft 20 can be conveniently replaced. After replacement, the equipment can be reassembled according to the above installation steps and put into use again. In the entire working process, the cooperation of the insertion rods 30 and the transverse holes 4 realizes the quick disassembly and assembly of the main shaft 20 and the drive shaft 2, effectively improves the work efficiency, and avoids the problem of thread slipping caused by the bolt 433 connection, thereby ensuring the connection reliability.

[0042] As Figure 5 , Figure 6As shown, the stepped hole 201 comprises coaxially opened upper hole 2011 and lower hole 2012. The driving member 40 comprises lifting rod 41 and column 42. The top end of the lifting rod 41 is circumferentially provided with annular inclined surface 410, and the lifting rod 41 is coaxially butted with the column 42. The lifting rod 41 is slidably arranged in the lower hole 2012. The bottom wall of the column 42 is symmetrically provided with two wedge-shaped grooves 420, and the opposite side walls of the wedge-shaped grooves 420 are provided with first inclined surfaces 4210. Each inserting rod 30 is provided with gap 31, and each inserting rod 30 is provided with second inclined surface 311 at the opposite end. The gap 31 is provided with third inclined surface 312. The two second inclined surfaces 311 abut against the annular inclined surface 410, and the two second inclined surfaces 311 are located at the two sides of the annular inclined surface 410. Each third inclined surface 312 abuts against each first inclined surface 4210. One end of the lifting rod 41 is connected with lifting mechanism 43 for driving the lifting of the lifting rod 41. The lifting mechanism 43 comprises sliding block 431, connecting rod 432 and screw 433. The bottom end of the lifting rod 41 is obliquely provided with fourth inclined surface 411, and the fourth inclined surface 411 is provided with sliding groove 4110. The sliding block 431 is slidably arranged in the sliding groove 4110. One end of the connecting rod 432 is fixedly connected with the sliding block 431, and the other end is fixedly provided with bearing. The main shaft 20 is perpendicularly provided with threaded hole 203 along the axial direction. The lower hole 2012 is communicated with the threaded hole 203. The screw 433 is screwed in the threaded hole 203 and is fixedly connected with the outer ring of the bearing. The end of the screw 433 away from the bearing is provided with cross groove or slot 4331.

[0043] In the installation stage, when the main shaft 20 is aligned with the horizontal hole 202 and the transverse hole 4 of the driving shaft 2, the connecting rod 30 needs to be driven to move by the lifting mechanism 43 to complete the connection. At this time, the operator turns the bolt 433 by means of a tool (such as a screwdriver), since the bolt 433 is screwed in the threaded hole 203 of the main shaft 20, and one end thereof is connected with the connecting rod 432 through a bearing, turning the bolt 433 will push or pull the connecting rod 432. The connecting rod 432 drives the sliding block 431 to slide in the sliding groove 4110 at the bottom end of the lifting rod 41, since the bottom end of the lifting rod 41 is provided with the fourth inclined surface 411, the sliding block 431 will force the lifting rod 41 to rise along the lower hole 2012. During the rising of the lifting rod 41, the annular inclined surface 410 at the top end thereof and the second inclined surface 311 of the connecting rod 30 are pressed against each other, at the same time, the cylinder 42 coaxially connected with the lifting rod 41 is moved upward, and the first inclined surface 4210 of the wedge-shaped groove 420 on the cylinder 42 and the third inclined surface 312 of the gap 31 of the connecting rod 30 are also pressed against each other. Under the combined action of the annular inclined surface 410, the first inclined surface 4210 and the second inclined surface 311, the third inclined surface 312, the two connecting rods 30 move synchronously away from each other in the horizontal hole 202, and finally are inserted into the transverse hole 4 of the driving shaft 2, realizing the firm connection between the main shaft 20 and the driving shaft 2. In the welding stage, the bolt 433 remains in a fixed state, the position of the lifting rod 41 is stable, and the connecting rod 30 is always in the transverse hole 4 under the pressing of the inclined surfaces, so as to ensure that the driving shaft 2 stably transmits the torque to the main shaft 20 through the connecting rod 30, and then drives the stirring needle 21 to complete the water-cooled plate welding operation. When it is necessary to disassemble and replace, the bolt 433 is turned in the reverse direction, the connecting rod 432 pulls the sliding block 431 to slide in the reverse direction, and the lifting rod 41 descends along the lower hole 2012 under the gravity or reaction force of the lifting rod 41. The pressing action of the annular inclined surface 410 and the second inclined surface 311, the first inclined surface 4210 and the third inclined surface 312 is released, and the two connecting rods 30 move relatively in the horizontal hole 202 and are withdrawn from the transverse hole 4. At this time, the connection between the main shaft 20 and the driving shaft 2 is released, and the main shaft 20 can be smoothly taken out for replacement of the stirring needle 21 or the main shaft 20, and after the replacement is completed, the above-mentioned installation steps can be operated to put it into use again.

[0044] Obviously, the embodiments described are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

Claims

1. A stationary shoulder device for friction stir welding of water-cooled plates, mounted on a welding equipment body, the welding equipment body having a drive shaft, a blind hole at one end of the drive shaft along its axial direction, and two transverse holes coaxially extending through it along its vertical axis, both of the transverse holes communicating with the blind hole, characterized in that, include: A shoulder sleeve, one end of which is fixedly connected to the main body of the welding equipment, and the other end of which has a mounting hole; The main shaft has a detachable stirring needle at one end and a stepped hole coaxially formed at the other end along its axial direction. The main shaft also has two horizontal holes coaxially formed perpendicular to its axial direction, and both horizontal holes are connected to the stepped hole. The main shaft is located inside the shoulder sleeve, and the stirring needle is disposed through the mounting hole; The spindle is inserted into the blind hole, and the horizontal hole is coaxial with the transverse hole; In this configuration, a rod is slidably installed in each of the horizontal holes, and two rods move synchronously relative to each other or move away from each other through a drive component, so that the rod can be inserted into the horizontal hole.

2. The stationary shoulder device for friction stir welding of water-cooled plates according to claim 1, characterized in that, The stepped hole includes an upper hole and a lower hole that are coaxially formed; The driving component includes a lifting rod and a column. The top circumference of the lifting rod has an annular inclined surface and is coaxially connected to the column. The lifting rod is slidably disposed within the lower hole; The bottom wall of the column has two symmetrical wedge-shaped grooves, and the opposite sidewalls of the wedge-shaped grooves have a first inclined surface; Each of the inserted rods has a notch, and a second inclined surface is formed at one of the opposite ends. The notch has a third inclined surface, and the two second inclined surfaces abut against the annular inclined surface and are located on both sides of the annular inclined surface. Each of the third inclined surfaces abuts against each of the first inclined surfaces; The bottom end of the lifting rod is connected to a lifting mechanism for driving its lifting and lowering.

3. The stationary shoulder device for friction stir welding of water-cooled plates according to claim 2, characterized in that, The lifting mechanism includes a slider, a connecting rod, and bolts; The bottom end of the lifting rod is inclined with a fourth inclined surface, and a sliding groove is formed on the fourth inclined surface. The slider is slidably disposed in the sliding groove. One end of the connecting rod is fixedly connected to the slider, and the other end is fixedly provided with a bearing. The main shaft has a threaded hole perpendicular to its axial direction, the lower hole communicates with the threaded hole, the bolt is screwed into the threaded hole and fixedly connected to the outer ring of the bearing.

4. The stationary shoulder device for friction stir welding of water-cooled plates according to claim 3, characterized in that, The bolt has a cross groove or a slotted groove at the end away from the bearing.

5. The stationary shoulder device for friction stir welding of water-cooled plates according to claim 1, characterized in that, The shoulder sleeve includes an upper cylinder, a lower cylinder, and a tube sleeve. The inner ring wall of the tube sleeve has an internal thread section, and one end is coaxially connected to the secondary ring plate. The bottom circumference of the upper cylinder is provided with an external thread section, and the top annular wall of the lower cylinder is coaxially fitted with a main ring plate. The internal thread section is screwed to the external thread section, the upper wall of the main ring plate abuts against the bottom end of the lower cylinder, and the lower wall abuts against the secondary ring plate.

6. The stationary shoulder device for friction stir welding of water-cooled plates according to claim 5, characterized in that, A flange is welded to the top of the upper cylinder, and the flange is detachably mounted on the main body of the welding equipment.

7. The stationary shoulder device for friction stir welding of water-cooled plates according to claim 5, characterized in that, Multiple friction grooves are formed on the outer circumference of the sleeve.

8. The stationary shoulder device for friction stir welding of water-cooled plates according to claim 5, characterized in that, Both the upper cylinder and the lower cylinder have multiple heat dissipation holes circumferentially formed along their axial direction.

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