CN213164054U

CN213164054U - Station switching device of welding polisher

Info

Publication number: CN213164054U
Application number: CN202021409960.0U
Authority: CN
Inventors: 许钢祥; 周斌萍; 王剑锋; 罗建海
Original assignee: Hangzhou Vocational and Technical College
Current assignee: Hangzhou Vocational and Technical College
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2021-05-11
Anticipated expiration: 2030-07-16

Abstract

The utility model provides a station auto-change over device of welding burnishing machine belongs to welding burnishing machine technical field. It has solved the problem that there are a great deal of insufficiencies in current welding burnishing machine's station switching part. This device includes the carousel, the fixed dish axle that is equipped with in center department of carousel, the bottom of dish axle is equipped with the supporting seat and rotates the setting on this supporting seat, a plurality of work piece shaft holes have been seted up on the carousel, the free rotation is equipped with the work piece main shaft in the work piece shaft hole, the one end tip of work piece main shaft is equipped with the anchor clamps piece that is used for the centre gripping work piece, four work piece shaft holes are located to use the carousel center as the virtual square's of virtual central point four corners, the equal interval such as outer periphery of carousel is equipped with a plurality of passive driving levers, the fixed stirring motor that is equipped with on the support. Compared with the prior art, the station switching process of the device is slow, so that interference factors can not be generated due to inertia in the stopping process, and the positioning is very accurate.

Description

Station switching device of welding polisher

Technical Field

The utility model belongs to the technical field of the welding burnishing machine, a station auto-change over device of welding burnishing machine is related to.

Background

The vacuum cup consists of an inner container and an outer cup, the inner container and the outer cup need to be spliced together in the processing process, then welding is carried out, then the polishing process is carried out at the welding position, wherein the polishing process comprises a plurality of procedures of rough film, fine polishing and the like, because the rotating speed of the workpiece needing to rotate is very high in the polishing process, in the welding process, the workpiece needs to rotate slowly and only needs to rotate at least one circle to complete the all-round welding, therefore, in the process, the rotating speed required by the polished process workpiece is one rotating speed, the rotating speed required by the welding process workpiece is the other rotating speed, how to combine the two processes on one equipment and change the rotating speed when the work stations are switched is a problem to be overcome, in particular, the applicant has provided a triple linkage-automatic four-station welding and polishing machine to solve this problem.

Meanwhile, the applicant gradually finds in the design that if the four-station switching is realized through the turntable, the motor used for switching the turntable to rotate by one station amplitude (1/4 circles) is usually driven by the motor connected with the bottom spindle, but the motor with large torque can continuously rotate by a small amplitude angle in the stopping process due to the inertia problem, so that the positioning effect is poor, and the accuracy is not good to control.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a welding and polishing machine's station auto-change over device to there being a great deal of not enough problem in current welding and polishing machine's station auto-change over part.

The purpose of the utility model can be realized by the following technical proposal:

the utility model provides a station auto-change over device of welding burnishing machine which characterized in that: the rotary table comprises a rotary table, a table shaft is fixedly arranged at the center of the rotary table, a supporting seat is arranged at the bottom of the table shaft and is rotatably arranged on the supporting seat, a plurality of workpiece shaft holes are formed in the rotary table, a workpiece spindle is freely and rotatably arranged in the workpiece shaft holes, a clamp block for clamping a workpiece is arranged at one end part of the workpiece spindle, four workpiece shaft holes are arranged at four corners of a virtual square with the center of the rotary table as a virtual central point, a plurality of passive deflector rods are uniformly arranged at intervals on the outer circumference of the rotary table, a toggle motor is fixedly arranged on a support, a rotary block is arranged at the end part of an output shaft of the toggle motor, four active deflector rods which are mutually vertical or collinear are arranged on the rotary block, the four active deflector rods are positioned on a virtual cross, the active deflector rods can be clamped between two adjacent passive deflector rods and can toggle one, the four positioning blocks are positioned at four corners of the other virtual square, one side of each positioning block, which faces the corresponding toggle motor, is provided with a positioning raised head, the toggle motor is provided with a stop switch capable of resetting by self, the positioning raised heads can be cut into and pushed onto the stop switch from the side faces, each driving deflector rod comprises an outer rod and an inner rod, the outer rods are fixedly arranged on the rotating blocks, the outer ends of the outer rods are provided with sliding holes with the same size as the inner rods, the inner rods are arranged in the sliding holes in a sliding mode, the side faces of the outer rods are further provided with screw holes communicated with the sliding holes, and bolts are arranged in the screw holes and tightly push the inner rods.

In the station switching device of the welding and polishing machine, the bottom surface of the clamp block is provided with a circle of first ring groove, the surface of the turntable around the workpiece shaft hole is provided with a circle of second ring groove, a plurality of balls are densely arranged in the second ring groove, the bottom surface of the clamp block is attached to the surface of the rotating shaft after the clamp block is placed into the workpiece shaft hole along with the workpiece main shaft, the first ring groove and the second ring groove are correspondingly combined to form an annular channel, the transverse section of the annular channel is circular, the size of the second ring groove is larger than that of the first ring groove, so that the balls are always positioned in the second ring groove and cannot fall down when the second ring groove is separated from the second ring groove, the workpiece main shaft is also fixedly sleeved with a threaded cylinder, the threaded cylinder is also detachably provided with a fixed sleeve, the fixed sleeve is provided with a sleeve hole, an internal thread is arranged in the sleeve hole, an external, fixed cover is fixed totally and is in the lax state and can not produce the friction in the contact surface between the bottom surface laminating of fixed cover and the carousel behind the screw thread cylinder, still fixedly on the screw thread cylinder being equipped with the round and being used for preventing fixed cover from rotating excessive spacing ring, and the second annular has all been seted up and is equipped with the ball on the positive and negative surface of carousel.

In the station switching device of the welding and polishing machine, the center of the rotating shaft is provided with a connecting hole, the disc shaft is connected to the connecting hole and comprises a shaft body and a cover body, the end surface of the shaft body is provided with a cover hole, the peripheral wall of the cover hole is outwards provided with four first locking holes in a penetrating way, the straight line where the four first locking holes are located forms another virtual cross shape, a locking tongue is arranged in the first locking hole in a sliding way, the peripheral wall of the connecting hole is provided with second locking holes with the number and the positions corresponding to the first locking holes, the part of the locking tongue can be led into the second locking holes from the first locking holes to complete the fastening of the shaft body and the rotating disc, the inner end of the locking tongue is provided with a guide inclined plane, the bottom surface of the cover body is provided with a cuboid-shaped locking block, the locking block is located in the cover hole after the cover body is completely covered on the shaft body, the four sides of the bottom surface of the, the upper surface of the inner end of the locking tongue is also provided with a pull-back hole, and the bottom surface of the locking block is provided with a pull-out pin with the same size as the pull-back hole.

Compared with the prior art, the station switching process of the device is slow, so that interference factors can not be generated due to inertia in the stopping process, and the positioning is very accurate.

Drawings

FIG. 1 is a schematic diagram of an upper view structure of a turntable driven process;

FIG. 2 is a schematic view of the structure of the lower view angle of the process of driving the turntable;

FIG. 3 is a schematic view of the upper view of the turntable and workpiece spindle after separating and concealing portions of the components;

FIG. 4 is a schematic view of the lower view of the turntable and workpiece spindle after separation and partial part hiding;

FIG. 5 is a schematic view of the spindle and cover shown removed from the turntable;

FIG. 6 is a schematic view of the structure of the axle and the cover;

FIG. 7 is a schematic structural view of a shaft body;

in the figure, 1, a turntable; 2. a disc shaft; 3. a supporting seat; 4. a clamp block; 5. a passive deflector rod; 6. a motor is shifted; 7. rotating the block; 8. an active deflector rod; 9. positioning blocks; 10. positioning the raised head; 11. a stop switch; 12. a workpiece spindle; 13. a first ring groove; 14. a second ring groove; 15. a ball bearing; 16. a threaded cylinder; 17. fixing a sleeve; 18. a limiting ring; 19. connecting holes; 20. a shaft body; 21. a cover body; 22. covering the hole; 23. a first locking hole; 24. a locking tongue; 25. a second locking hole; 26. a guide ramp; 27. a locking block; 28. straight chamfering; 29. a pull-back hole; 30. the pin is pulled out.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the station switching device of the welding and polishing machine comprises a rotary table 1, a disc shaft 2 is fixedly arranged at the center of the rotary table 1, a support seat 3 is arranged at the bottom of the disc shaft 2 and is rotatably arranged on the support seat 3, a plurality of workpiece shaft holes are formed in the rotary table 1, a workpiece spindle 12 is freely rotatably arranged in each workpiece shaft hole, a clamp block 4 for clamping a workpiece is arranged at one end of each workpiece spindle 12, the four workpiece shaft holes are positioned at four corners of a virtual square with the center of the rotary table 1 as a virtual central point, a plurality of passive shift levers 5 are uniformly arranged on the outer circumference of the rotary table 1 at intervals, a shift motor 6 is fixedly arranged on the support, a rotary block 7 is arranged at the end of an output shaft of the shift motor 6, four mutually perpendicular or collinear active shift levers 8 are arranged on the rotary block 7, the four active shift levers 8 are positioned on a virtual cross, the active shift levers 8 can be clamped between two adjacent passive shift levers 5 And the bottom surface of the rotating disc 1 is provided with four positioning blocks 9, the four positioning blocks 9 are positioned at four corners of another virtual square, one side of each positioning block 9, which faces the toggle motor 6, is provided with a positioning raised head 10, the toggle motor 6 is provided with a stop switch 11 capable of resetting by itself, and the positioning raised heads 10 can be cut into and pushed onto the stop switch 11 from the side surfaces.

The toggle motor 6 is driven to rotate 1/4 circles each time the dial motor is started, the process is completed by the driving toggle rod 8 gradually toggling the driven toggle rod 5, the process is slow, so that the process has great stability in the transposition process of the dial 1, after the positioning raised head 10 is jacked to the stop switch 11 from the side surface, the toggle motor 6 stops rotating, and because the rotating speed of the dial 1 is slow, the influence caused by inertia factors can be ignored, finally, the dial 1 stably stops at the position of 1/4 circles, and the next operation of the dial 1 stops from the position of 1/4 to the position of 2/4, and the stop effect is completed by the next positioning raised head 10.

In order to change the interval time between the stepping and stopping of the driving process, the driving deflector rod 8 can be designed into a mode that an outer rod and an inner rod are connected together, the outer rod is fixedly arranged on the rotating block 7, the outer end of the outer rod is provided with a sliding hole with the same size as the inner rod, the inner rod is arranged in the sliding hole in a sliding mode, the side face of the outer rod is further provided with a screw hole communicated with the sliding hole, a bolt is arranged in the screw hole, the inner rod is tightly propped against the outer rod through the bolt to be fixed relative to the outer rod, therefore, after the bolt is loosened, the position of the inner rod can be adjusted, the length of the whole driving deflector rod 8 is adjusted in a turning mode, the debugging function is further provided.

As shown in fig. 3 and 4, the bottom surface of the clamp block 4 is provided with a circle of first ring groove 13, the surface of the rotating disk 1 around the workpiece shaft hole is provided with a circle of second ring groove 14, a plurality of balls 15 are densely arranged in the second ring groove 14, the clamp block 4 is placed in the workpiece shaft hole along with the workpiece spindle 12, the bottom surface of the clamp block 4 is attached to the surface of the rotating shaft, the first ring groove 13 and the second ring groove 14 are correspondingly combined to form an annular channel, the cross-sectional transverse section of the annular channel is circular, the size of the second ring groove 14 is larger than that of the first ring groove 13, so that the balls 15 are always positioned in the second ring groove 14 and cannot fall off when the second ring groove 14 is separated from the second ring groove 14, the workpiece spindle 12 is further fixedly provided with a threaded cylinder 16 by the fixedly sleeve 17, the threaded cylinder 16 is further detachably provided with the fixed sleeve 17, the fixed sleeve 17 is provided with a sleeve hole, an internal thread is arranged in the, the fixed cover 17 is fixed totally and is in the lax state and can not produce the friction with the bottom surface laminating of carousel 1 back fixed cover 17, and the last still fixed round that is equipped with of screw cylinder 16 is used for preventing fixed cover 17 from rotating excessive spacing ring 18, and second annular 14 has all been seted up and is equipped with ball 15 to the positive and negative surface of carousel 1.

If the rotary connection between the turntable 1 and the workpiece spindle 12 is completed in the form of the side additional bearing, the bearing connection between the workpiece spindle 12 and the turntable 1 is subjected to shearing force, which is very easy to cause the bearing fracture after long-term use, but the design adopts the joint surface of the bottom surface of the clamp block 4 and the upper surface of the rotating shaft to transfer the mutual friction force between the two, and the ball 15 is arranged on the contact surface of the two to change the sliding friction into more flexible rolling friction, so that the bearing effect can be achieved, and the stressed transverse surface is a transverse surface, so that the service life is longer than that of the bearing without the fracture phenomenon.

In the assembling process, the workpiece spindle 12 is embedded into the workpiece shaft hole, so that the first annular groove 13 covers the ball 15 and is matched with the second annular groove, then the fixed sleeve 17 is turned up in a threaded manner from the lower part, the workpiece spindle 12 is axially limited, the workpiece spindle 12 is fixed on the turntable 1 and cannot fall off, attention is paid to the fact that the workpiece spindle 12 and the inner wall of the workpiece shaft hole are in clearance fit, namely friction cannot be generated between the workpiece spindle and the fixed sleeve, and the friction factor actually exists only on the contact surface between the turntable 1 and the clamp block 4 because the bottom surface of the turntable 1 and the top surface of the fixed sleeve 17 are also in a loose state, and the friction force is further reduced by directly arranging the ball 15 on the turntable 1 and the top surface.

In order to further improve the service life, the two sides of the rotary table 1 of the design are provided with the second ring grooves 14 and the balls 15, after the practical service life of the balls 15 on one side is used up, the other side is adopted for assembly and can be used, and the design can enable the service life of the rotary table 1 and the service life of the workpiece spindle 12 to be nearly doubled.

Therefore, in order to provide the function of assembling both sides of the workpiece spindle 12 with the turntable 1, the disk spindle 2 and the turntable 1 need to be designed to be detachable directly, because the disk spindle 2 needs to be fixed from one side to the other side to be used after the assembling surface of the workpiece spindle 12 is switched, and for this reason, the applicant also designs the disk spindle 2 as follows:

as shown in fig. 5 to 7, a connection hole 19 is formed in the center of the rotation shaft, the reel 2 is connected to the connection hole 19, the reel 2 includes a reel body 20 and a cover body 21, a cover hole 22 is formed in an end surface of the reel body 20, four first locking holes 23 are formed through a peripheral wall of the cover hole 22, a straight line where the four first locking holes 23 are located forms another virtual cross shape, a locking tongue 24 is slidably disposed in the first locking hole 23, second locking holes 25 are formed in the peripheral wall of the connection hole 19, the number and the position of the second locking holes 25 correspond to those of the first locking holes 23, a part of the locking tongue 24 can be inserted into the second locking holes 25 from the first locking holes 23 to complete fastening between the reel body 20 and the reel 1, a guide inclined surface 26 is disposed at an inner end of the locking tongue 24, a rectangular locking block 27 is disposed on a bottom surface of the cover body 21, the locking block 27 is disposed in the cover hole 22 after the reel body 20 is completely covered, a rectangular chamfer 28 is, the inclined plane formed by the straight chamfer 28 is the same as the guide inclined plane 26 of the four locking tongues 24, the upper surface of the inner end of each locking tongue 24 is also provided with a pull-back hole 29, and the bottom surface of the locking block 27 is provided with a pull-out pin 30 with the same size as the pull-back hole 29.

After the shaft 20 is fixedly connected with the turntable 1, the shaft 20 is rotatably connected to a base, and the turntable 1 can rotate relative to the base by taking the shaft 20 as a center, and the shaft 20 needs to be detachable relative to the turntable 1 because the design aims to enable the front side and the back side of the turntable 1 to be used.

In normal times, since the cover 21 has a certain weight, it will be pressed tightly above the turntable 1, and when it needs to be removed, the cover 21 is removed from the shaft 20, and for the convenience of removal, the applicant can provide an idea of: it is preferable to design the upper surface of the cover 21 with a layer of magnetic material and then suck the cover 21 by an electromagnet, or to design a detachable hole above the cover 21 to facilitate prying.

Then, the cover body 21 itself can be used as a tool, the pull-out pin 30 designed on the cover body is hooked in from the pull-back hole 29, after the locking tongue 24 is pulled out from the second locking hole 25, the shaft body 20 and the turntable 1 are not tightly fixed any more, then the reverse surface of the turntable 1 is sleeved into the shaft body 20 again for alignment, and the cover body 21 is covered, under the interaction of the straight chamfer 28 on the bottom surface of the locking block 27 and the guiding inclined surface 26 of the locking block 27, the periphery is expanded outwards until the rotating shaft is extended into the second locking hole 25 to complete the fastening of the rotating shaft and the shaft body 20 again.

It is to be understood that in the claims, the specification of the present invention, all "including … …" are to be interpreted in an open-ended manner, i.e. in a manner equivalent to "including at least … …", and not in a closed manner, i.e. in a manner not to be interpreted as "including … … only".

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a station auto-change over device of welding burnishing machine which characterized in that: the device comprises a turntable (1), a turntable shaft (2) is fixedly arranged at the center of the turntable (1), a support seat (3) is arranged at the bottom of the turntable shaft (2) and is rotatably arranged on the support seat (3), a plurality of workpiece shaft holes are formed in the turntable (1), a workpiece spindle (12) is freely rotatably arranged in each workpiece shaft hole, a clamp block (4) for clamping a workpiece is arranged at one end of each workpiece spindle (12), the four workpiece shaft holes are positioned at four corners of a virtual square with the center of the turntable (1) as a virtual central point, a plurality of passive deflector rods (5) are uniformly arranged at intervals on the outer periphery of the turntable (1), a toggle motor (6) is fixedly arranged on a support, a rotating block (7) is arranged at the end part of an output shaft of the toggle motor (6), four driving deflector rods (8) which are vertical to each other or collinear are arranged on the rotating block (7), and the four driving deflector rods (, the driving shifting rod (8) can be clamped between two adjacent driven shifting rods (5) and can shift one driven shifting rod (5) to drive the rotary table (1) to rotate, four positioning blocks (9) are arranged on the bottom surface of the rotary table (1), the four positioning blocks (9) are located at four corners of the other virtual square, one side, facing the toggle motor (6), of each positioning block (9) is provided with a positioning raised head (10), a stop switch (11) capable of resetting by itself is arranged on the toggle motor (6), the positioning raised heads (10) can be cut into and pushed onto the stop switch (11) from the side faces, the driving shifting rod (8) comprises an outer rod and an inner rod, the outer rod is fixedly arranged on the rotary table (7), the outer end of the outer rod is provided with a sliding hole with the size identical to that of the inner rod, the inner rod is arranged in the sliding hole in a sliding mode, the side faces of the outer rod are further provided with screw holes communicated with the sliding holes, and the inner rod is.

2. The station switching device of the welding and polishing machine as claimed in claim 1, wherein: the bottom surface of the clamp block (4) is provided with a circle of first ring groove (13), the surface of the rotary table (1) around the workpiece shaft hole is provided with a circle of second ring groove (14), a plurality of balls (15) are densely arranged in the second ring groove (14), the clamp block (4) is placed in the workpiece shaft hole along with the workpiece spindle (12), the bottom surface of the clamp block (4) is attached to the surface of the rotating shaft, the first ring groove (13) and the second ring groove (14) are correspondingly combined to form an annular channel, the cross section transverse section of the annular channel is circular, the size of the second ring groove (14) is larger than that of the first ring groove (13), so that the balls (15) are always positioned in the second ring groove (14) and cannot fall off when the second ring groove (14) is separated from the second ring groove (14), the workpiece spindle (12) is further provided with a threaded cylinder (16), and the threaded cylinder (16) is also provided with a, seted up the trepanning on fixed cover (17), set up the internal thread in the trepanning, the outer lane of screw thread cylinder (16) is equipped with the external screw thread, connection through internal thread and external screw thread makes fixed cover (17) fix on screw thread cylinder (16), fixed cover (17) are fixed completely and are in the lax state and can not produce the friction with the bottom surface laminating of carousel (1) the upper surface of fixed cover (17) back but contact surface between the two, still fixed being equipped with the round on screw thread cylinder (16) and being used for preventing fixed cover (17) from rotating excessive spacing ring (18), second annular (14) have all been seted up and are equipped with ball (15) to the positive and negative surface of carousel (1).

3. The station switching device of the welding and polishing machine as claimed in claim 2, wherein: a connecting hole (19) is formed in the center of the rotating shaft, the disc shaft (2) is connected to the connecting hole (19), the disc shaft (2) comprises a shaft body (20) and a cover body (21), a cover hole (22) is formed in the end face of the shaft body (20), four first locking holes (23) are formed in the peripheral wall of the cover hole (22) outwards and through, a straight line where the four first locking holes (23) are located forms another virtual cross shape, locking tongues (24) are arranged in the first locking holes (23) in a sliding mode, second locking holes (25) which can correspond to the first locking holes (23) in quantity and position are formed in the peripheral wall of the connecting hole (19), parts of the locking tongues (24) can be led into the second locking holes (25) from the first locking holes (23) to complete the fastening of the shaft body (20) and the rotating disc (1), guide inclined planes (26) are arranged at the inner ends of the locking tongues (24), and rectangular locking blocks (27) are arranged on the bottom face of the cover, the cover body (21) is completely covered on the shaft body (20), the rear locking block (27) is located in the cover hole (22), four sides of the bottom surface of the locking block (27) are provided with straight chamfers (28), an inclined plane formed by the straight chamfers (28) is the same as guide inclined planes (26) of the four locking tongues (24), the upper surface of the inner end of each locking tongue (24) is further provided with a pull-back hole (29), and the bottom surface of the locking block (27) is provided with a pull-out pin (30) which is the same as the pull-back hole (29) in size.