CN218081995U

CN218081995U - Workpiece polishing device

Info

Publication number: CN218081995U
Application number: CN202222274606.7U
Authority: CN
Inventors: 周洁; 陈杰; 乐志芳; 宁月生; 程翔
Original assignee: Qingdao Xuerui Machinery Co ltd
Current assignee: Qingdao Xuerui Machinery Co ltd
Priority date: 2022-08-29
Filing date: 2022-08-29
Publication date: 2022-12-20
Anticipated expiration: 2032-08-29

Abstract

The utility model belongs to the technical field of polishing equipment, in particular to a polishing device for a workpiece, which comprises a polishing component arranged on a base, wherein the polishing component comprises a polishing shell fixed on the surface of the base, two motors A symmetrically fixed on the inner wall of the polishing shell and two groups of clamping components fixed on the upper surface of the polishing shell; when the propelling track in the propelling assembly rotates, the propelling track can rotate to adjust the angle, so that the pipe fitting can be propelled and the pipe fitting can be rotated at the same time, and the propelling speed and the rotating speed of the pipe fitting can be controlled by adjusting the angle of the propelling track; the utility model discloses a motor B drives the cleaning brush and rotates on the pipe fitting surface, carries out cleaning before polishing to the pipe fitting, clears away the attached spot on pipe fitting surface, the polishing operation of the pipe fitting of being convenient for.

Description

Workpiece polishing device

Technical Field

The utility model belongs to the technical field of burnishing equipment, concretely relates to machined part burnishing device.

Background

The polishing is a processing method for reducing the roughness of the surface of a workpiece by using mechanical, chemical or electrochemical actions to obtain a bright and flat surface, when a metal pipe is processed, the outer surface of the metal pipe needs to be polished, most polishing wheels which are manually held and rotate at high speed are adopted for polishing in the polishing operation at present, the polishing effect of the polishing mode is influenced by the technology of workers, the pipe needs to be rotated or the pipe needs to be polished, the problem of different polishing quality can be avoided, and the workers can be injured by the polishing wheels in the polishing operation process.

In order to solve the above problem, a workpiece polishing apparatus is proposed in the present application.

SUMMERY OF THE UTILITY MODEL

To solve the problems raised in the background art described above. The utility model provides a machined part burnishing device has automatic screw propulsion pipe fitting, with pipe fitting surface pretreatment before the polishing, evenly carries out the characteristics of polishing to the pipe fitting surface.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a machined part burnishing device, includes the base, still including installing polishing subassembly on the base, polishing subassembly is including fixing polishing casing and symmetry on the base surface are fixed two motor A on the polishing shells inner wall with fix two sets of hold assembly of polishing casing upper surface, every group hold assembly all fixes including the symmetry two bracing pieces A of polishing casing surface are connected with rotating the bracing piece A is kept away from polish one overhead auxiliary wheel A of casing, motor A's output fixedly connected with drive wheel A, the intercommunication groove A that two symmetries set up is seted up on the surface of polishing casing, drive wheel A with auxiliary wheel A's the outside is equipped with the follow intercommunication groove A department runs through the polishing area of polishing casing, just drive wheel A's lateral wall with the internal surface meshing of polishing area.

As a preferred, polishing assembly is still including fixing the telescopic tube and the setting of the inside bottom surface of polishing casing are in spring A in the telescopic tube with telescopic tube sliding connection's telescopic link, spring A's one end with the fixed other end of telescopic link is fixed on the bottom surface of polishing casing, the telescopic link is kept away from telescopic tube's one end is rotated and is connected with the take-up pulley, the lateral wall of take-up pulley with the surface contact who polishes the area is connected.

As a result of the utility model, the utility model relates to a machined part burnishing device is preferred, still including installing the propulsion subassembly of polishing subassembly one side, it is including fixing to advance the subassembly the supporting seat on the base surface and fixing outer frame body and setting on the supporting seat are in inner frame body in the outer frame body, inner surface annular distribution of inner frame body installs a plurality of propulsion unit, every group propulsion unit is all including advancing the casing and fixing motor C on the propulsion casing inner surface with fix drive wheel C on the motor C output, it is connected with two sets of auxiliary wheel C to rotate on the inner wall of propulsion casing, and two sets of auxiliary wheel C run through the inner wall that advances the casing extends to outside the propulsion casing, drive wheel C with the lateral wall cover of auxiliary wheel C is equipped with and advances the track, it keeps away from to advance the casing one side fixed surface of auxiliary wheel C is connected with connecting axle B and connecting axle C, connecting axle B runs through the surface of inner frame body to the rotation is connected on outer frame body's the inner wall, connecting axle C is in the spout C that inner frame body seted up with inner frame body sliding connection, the lateral wall cover of inner frame body be equipped with connecting axle sliding connection, just the connecting axle C with the connecting ring rotates to be connected.

As the utility model relates to a machined part burnishing device is preferred, the outside of outer frame body is equipped with the regulation fixture block, the pivot of adjusting the fixture block is run through the lateral wall of outer frame body and extend to one of them connecting axle C department, adjust the pivot of fixture block with connecting axle C fixed connection, just adjust the fixture block with outer frame body sliding connection.

As the utility model relates to a machined part burnishing device is preferred, it is close to adjust the fixture block the one side of outer frame body is the arc surface, just the arc surface both sides of adjusting the fixture block are fixed with anti-skidding gasket.

As a preferred, still including setting up polishing subassembly with advance clean subassembly between the subassembly, clean subassembly is including setting up the motor B in pipe fitting below and fixing cleaning brush and symmetry on the motor B output are fixed two extensible parts, every group of motor B lower surface extensible part is all including fixing the slide rail B of motor B lower surface and installing connecting rod on the slide rail B with fix the fixed block on the surface of base, one side of fixed block be equipped with base sliding connection's sliding block B, threaded connection has the lead screw on the sliding block B, just the one end of lead screw runs through sliding block B's surface, and extend to on the fixed block with the fixed block rotates to be connected, two sets of the connecting rod is close to sliding block B's one end through the pivot with sliding block B's lateral wall rotates to be connected.

As the utility model relates to a machined part burnishing device is preferred, the connecting rod is crisscross into X type and two mutual articulated member structures, the one end of connecting rod top with slide rail B rotates to be connected, and the other end is in through pivot sliding connection in the spout of seting up on the slide rail B, the one end of connecting rod below is rotated and is connected the intracavity is held on the base surface, and the other end rotates to be connected on sliding block B's the lateral wall.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses when advancing the propelling track in the subassembly and rotating, because of advancing the track and can rotating angle regulation, the event can realize the pipe fitting rotation when the pipe fitting impels, and the advancing speed and the slew velocity of the angle control pipe fitting of propelling track are adjusted to the accessible, and this kind of mode that advances the pipe fitting is compared the manual work and is rotated more evenly, when polishing the operation, can make pipe fitting surface finish quality even.

The utility model discloses a motor B drives the cleaning brush and rotates on the pipe fitting surface, carries out cleaning before polishing to the pipe fitting, clears away the attached spot on pipe fitting surface, the polishing operation of the pipe fitting of being convenient for.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic three-dimensional structure of the present invention;

FIG. 2 is a schematic structural view of a polishing assembly according to the present invention;

fig. 3 is an enlarged schematic structural view of fig. 2A of the present invention;

fig. 4 is a schematic front view of the structure of the present invention;

fig. 5 is an enlarged schematic structural view of fig. 4B of the present invention;

fig. 6 is a schematic view of the internal structure of the outer frame and the inner frame of the present invention;

fig. 7 is a schematic three-dimensional structure diagram of the inner frame body of the present invention;

fig. 8 is a schematic view of the internal structure of the propulsion housing according to the present invention;

in the figure:

1. a base;

10. a polishing assembly; 11. polishing the shell; 111. a communicating groove A; 12. a motor A; 13. a support rod A; 14. an auxiliary wheel A; 15. a driving wheel A; 16. a polishing belt; 17. a telescopic sleeve; 171. a spring A; 18. a telescopic rod; 19. a tension wheel;

20. a cleaning assembly; 21. a motor B; 22. a cleaning brush; 23. a slide rail B; 24. a connecting rod; 25. a fixed block; 26. a sliding block B; 27. a screw rod;

30. a propulsion assembly; 31. a supporting seat; 32. an outer frame body; 33. an inner frame body; 331. a chute C; 34. Advancing the housing; 35. a connecting shaft B; 36. a connecting shaft C; 37. a connecting ring; 38. a motor C; 39. a driving wheel C; 40. an auxiliary wheel C; 41. propelling the crawler; 42. and adjusting the clamping block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

As shown in fig. 1 and 4;

a workpiece polishing apparatus includes a base 1.

In this embodiment: at present, a polishing wheel which is manually held and rotates at a high speed is mostly adopted for polishing during polishing operation, the polishing effect of a polishing mode is influenced by the technology of workers, the pipe fitting needs to be rotated or wound for polishing the surface of the pipe fitting, the problem of different polishing quality is inevitable, and the workers can be damaged by the polishing wheel during the polishing operation, and in order to solve the problem, the following improved technical scheme is provided;

further, the method comprises the following steps:

as shown in fig. 1-8;

with the above in mind:

in order to avoid the handheld operation of workers, this machined part burnishing device, still including installing polishing subassembly 10 on base 1, polishing subassembly 10 is including fixing polishing casing 11 on the base 1 surface and the symmetry is fixed two motor A12 on polishing casing 11 inner wall and fixing two sets of clamping parts at polishing casing 11 upper surface, every clamping part of group all includes the symmetry and fixes two bracing pieces A13 and the rotation of polishing casing 11 surface and connect the auxiliary wheel A14 of keeping away from polishing casing 11 one end at bracing piece A13, motor A12's output fixedly connected with drive wheel A15, two symmetry settings's intercommunication groove A111 have been seted up on the surface of polishing casing 11, the outside of drive wheel A15 and auxiliary wheel A14 is equipped with runs through the polishing belt 16 of polishing casing 11 from intercommunication groove A111, and the outside wall of drive wheel A15 and the internal surface meshing of polishing belt 16.

In this embodiment: move polishing subassembly 10 position, the user presses the below of pipe fitting with polishing belt 16, makes the surface laminating of pipe fitting and polishing belt 16, and user's start motor A12, two motor A12 syntropy operations drive wheel A15, and drive wheel A15 drives polishing belt 16 and rotates, realizes that polishing belt 16 polishes the operation to the surface of pipe fitting.

Further, the method comprises the following steps:

in an alternative embodiment, the polishing assembly 10 further includes a telescopic tube 17 fixed on the inner bottom surface of the polishing housing 11, and a spring a171 disposed inside the telescopic tube 17 and a telescopic rod 18 slidably connected inside the telescopic tube 17, wherein one end of the spring a171 and the other end of the telescopic rod 18 are fixed on the bottom surface of the polishing housing 11, one end of the telescopic rod 18 far from the telescopic tube 17 is rotatably connected with a tension wheel 19, and the outer side wall of the tension wheel 19 is in contact connection with the outer surface of the polishing belt 16.

In this embodiment: when a user presses the polishing belt 16 to the lower part of the pipe fitting, the tensioning wheel 19 is driven by the spring A171 to tension the polishing belt 16, so that the polishing belt 16 is always attached to the outer side wall of the pipe fitting close to the pipe fitting, and the pressure between the polishing belt 16 and the pipe fitting is prevented from being reduced after long-time polishing operation.

Further, the method comprises the following steps:

in order to avoid uneven polishing quality caused by rotation of a pipe by a worker, the workpiece polishing device further comprises a propelling assembly 30 installed on one side of the polishing assembly 10, the propelling assembly 30 comprises a supporting seat 31 fixed on the surface of the base 1, an outer frame 32 fixed on the supporting seat 31 and an inner frame 33 arranged in the outer frame 32, a plurality of propelling components are annularly distributed and installed on the inner surface of the inner frame 33, each group of propelling components comprises a propelling shell 34, a motor C38 fixed on the inner surface of the propelling shell 34 and a driving wheel C39 fixed on the output end of the motor C38, two groups of auxiliary wheels C40 are rotatably connected on the inner wall of the propelling shell 34, the two groups of auxiliary wheels C40 penetrate through the inner wall of the propelling shell 34 and extend out of the propelling shell 34, a propelling crawler 41 is sleeved on the outer side walls of the driving wheel C39 and the auxiliary wheels C40, a connecting shaft B35 and a connecting shaft C36 are fixedly connected on the surface of one side, away from the auxiliary wheels C40, the connecting shaft B35 penetrates through the surface of the inner frame 33 and is rotatably connected on the inner wall of the outer frame 32, the connecting shaft C36 is slidably connected with the inner frame 33, and a connecting ring 37 is sleeved on the inner surface of the connecting shaft C331.

It should be noted that: the outer frame 32 and the inner frame 33 are each tubular in structure.

It should be noted that: the pipe transport rotation direction is opposite to the movement direction of the polishing belt 16,

in this embodiment: the user is using the utility model discloses the time, will treat the pipe fitting of processing earlier and put into between a plurality of propulsion tracks 41 that advance the annular arrangement in the subassembly 30, starter motor C38, motor C38 drive wheel C39 and impel track 41 to rotate, because of impel track 41 and pipe fitting contact, impel track 41 to drive the pipe fitting and carry out lateral shifting, accomplish the propulsion operation to the pipe fitting, compare artifical removal pipe fitting, this design makes pipe fitting translation rate more even, and the controllability is higher.

Further, the following steps:

in an alternative embodiment, an adjusting latch 42 is disposed on an outer side of the outer frame 32, a rotating shaft of the adjusting latch 42 penetrates through an outer side wall of the outer frame 32 and extends to one of the connecting shafts C36, the rotating shaft of the adjusting latch 42 is fixedly connected with the connecting shaft C36, and the adjusting latch 42 is slidably connected with the outer frame 32.

In this embodiment: the user can move the adjusting clamping block 42, the adjusting clamping block 42 drives the connecting shaft C36 to slide in the sliding groove C331, the propelling shell 34 rotates by taking the connecting shaft B35 as a circle center, so that the angle of the propelling crawler 41 is adjusted, the propelling crawler 41 drives the pipe fitting to move, meanwhile, the pipe fitting rotates, the user rotates the adjusting clamping block 42, the inner concave surface is separated from the outer frame body 32, at the moment, the pressure between the adjusting clamping block 42 and the outer frame body 32 is increased, the anti-skid gasket is tightly attached to the outer frame body 32, and the locking of the adjusting clamping block 42 is realized.

It should be noted that: one surface of the adjusting clamping block 42 close to the outer frame body 32 is an arc surface, and anti-skid gaskets are fixed on two sides of the arc surface of the adjusting clamping block 42.

In order to further improve the polishing effect, the workpiece polishing device further comprises a cleaning component 20 arranged between the polishing component 10 and the propelling component 30, the cleaning component 20 comprises a motor B21 arranged below the pipe fitting, a cleaning brush 22 fixed on the output end of the motor B21 and two telescopic components symmetrically fixed on the lower surface of the motor B21, each telescopic component comprises a sliding rail B23 fixed on the lower surface of the motor B21, a connecting rod 24 installed on the sliding rail B23 and a fixed block 25 fixed on the surface of the base 1, one side of the fixed block 25 is provided with a sliding block B26 connected with the base 1 in a sliding mode, a lead screw 27 is connected to the sliding block B26 in a threaded mode, one end of the lead screw 27 penetrates through the surface of the sliding block B26 and extends to the fixed block 25 to be connected with the fixed block 25 in a rotating mode, and one end, close to the sliding block B26, of the two groups of connecting rods 24 is connected with the outer side wall of the sliding block B26 in a rotating mode through a rotating mode.

It should be noted that: the connecting rod 24 is two rod structures which are staggered into an X shape and are hinged with each other, one end above the connecting rod 24 is rotatably connected with the sliding rail B23, the other end of the connecting rod is connected in a sliding groove formed in the sliding rail B23 in a sliding manner through a rotating shaft, one end below the connecting rod 24 is rotatably connected in a containing cavity on the surface of the base 1, and the other end of the connecting rod is rotatably connected on the outer side wall of the sliding block B26.

In this embodiment: when pushing assembly 30 impels the pipe fitting to cleaning assembly 20 position department, motor B21 is started, motor B21 rotates and drives cleaning brush 22 and rotate at the pipe fitting downside, cooperation pushing assembly 30 removes the pipe fitting and rotates the operation, clean the pipe fitting surface, be convenient for follow-up polishing operation, when the position of cleaning brush 22 needs to be adjusted, the user rotates lead screw 27 through the handle on lead screw 27, lead screw 27 drives sliding block B26 and slides on the surface of base 1, sliding block B26 drives X-shaped connecting rod 24 to carry out the cross motion simultaneously, when connecting rod 24 intersects, drive motor B21 and carry out height control, be convenient for the user according to actual conditions adjusts the height of cleaning brush 22.

To sum up, the utility model provides an all with external power source electric connection of power consumption equipment, and a plurality of impels the motor C38 in the casing 34 to pass through control system (not shown in the figure) control.

The utility model discloses a theory of operation and use flow: when a user uses the utility model, firstly, a pipe fitting to be processed is put between the propelling caterpillar 41 in the propelling component 30, a plurality of motors C38 are started to drive the driving wheel C39 and the propelling caterpillar 41 to rotate, the propelling caterpillar 41 is contacted with the pipe fitting to drive the pipe fitting to move transversely, the user can move the adjusting fixture block 42, the adjusting fixture block 42 drives the connecting shaft C36 to slide in the chute C331, the propelling shell 34 rotates by taking the connecting shaft B35 as a circle center, so that the angle of the propelling caterpillar 41 is adjusted, the propelling caterpillar 41 drives the pipe fitting to move, the pipe fitting is rotated, the user rotates the adjusting fixture block 42 to separate the inner concave surface from the outer frame body 32, the anti-skid gasket is tightly attached to the outer frame body 32 at the moment, the locking of the adjusting fixture block 42 is realized, when the propelling component 30 propels the pipe fitting to the position of the cleaning component 20, the motor B21 is started, the motor B21 rotates to drive the cleaning brush 22 to rotate at the lower side of the pipe fitting, the pipe fitting is moved and rotated by matching with the propelling component 30 to clean the surface of the pipe fitting, which is convenient for subsequent polishing operation, when the position of the cleaning brush 22 needs to be adjusted, a user rotates the screw rod 27 through a handle on the screw rod 27, the screw rod 27 drives the sliding block B26 to slide on the surface of the base 1, meanwhile, the sliding block B26 drives the X-shaped connecting rod 24 to do cross motion, when the connecting rod 24 crosses, the motor B21 is driven to do height adjustment, which is convenient for the user to adjust the height of the cleaning brush 22 according to the actual situation, the pipe fitting is moved to the position of the polishing component 10 after being cleaned by the cleaning component 20, the user presses the polishing belt 16 to the lower part of the pipe fitting to make the surface of the pipe fitting and the polishing belt 16, because the tensioning wheel 19 tensions the polishing belt 16 under the driving of the spring A171, the position of the polishing belt 16 close to the pipe fitting is always fitted to the outer side wall of the pipe fitting, user starter motor A12, two motor A12 syntropy operations drive wheel A15, and drive wheel A15 drives polishing belt 16 and rotates, and polishing belt 16's moving direction is opposite with pipe fitting transmission rotation direction, realizes that polishing belt 16 polishes the surface of pipe fitting, the utility model is simple in operation convenient to use reduces workman's working strength simultaneously, and polishing quality more can obtain guaranteeing.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A workpiece polishing device comprising a base (1), characterized in that: still including installing polishing subassembly (10) on base (1), polishing subassembly (10) is including fixing polishing casing (11) on base (1) surface and symmetry are fixed two motor A (12) on polishing casing (11) inner wall and fix two sets of clamping parts of polishing casing (11) upper surface, every group clamping part all fixes including the symmetry two bracing pieces A (13) and the rotation of polishing casing (11) surface are connected and are in bracing piece A (13) are kept away from polishing casing (11) one end on auxiliary wheel A (14), the output fixedly connected with drive wheel A (15) of motor A (12), two symmetry setting's intercommunication groove A (111) are seted up on the surface of polishing casing (11), drive wheel A (15) with the outside of auxiliary wheel A (14) is equipped with from intercommunication groove A (111) department runs through polishing belt (16) of polishing casing (11), just the lateral wall of drive wheel A (15) with the internal surface meshing of polishing belt (16).

2. The workpiece polishing device according to claim 1, characterized in that: the polishing assembly (10) further comprises a telescopic sleeve (17) fixed on the inner bottom surface of the polishing shell (11), a spring A (171) arranged in the telescopic sleeve (17) and a telescopic rod (18) connected with the telescopic sleeve (17) in a sliding mode, one end of the spring A (171) and the other end of the telescopic rod (18) are fixed on the bottom surface of the polishing shell (11), one end, far away from the telescopic sleeve (17), of the telescopic rod (18) is rotatably connected with a tension wheel (19), and the outer side wall of the tension wheel (19) is in contact connection with the outer surface of the polishing belt (16).

3. The workpiece polishing device according to claim 1, characterized in that: still including installing propulsion assembly (30) of polishing subassembly (10) one side, propulsion assembly (30) is including fixing supporting seat (31) on base (1) surface and fixing outer frame (32) on supporting seat (31) are in with setting up interior frame (33) in outer frame (32), a plurality of propulsion components are installed to the internal surface annular distribution of interior frame (33), every group propulsion component is all including advancing casing (34) and fixing motor C (38) on advancing casing (34) internal surface and fixing drive wheel C (39) on motor C (38) output, it is connected with two sets of auxiliary wheel C (40) to rotate on the inner wall of advancing casing (34), and two sets of auxiliary wheel C (40) run through advance the inner wall of casing (34) and extend to outside advancing casing (34), drive wheel C (39) with the lateral wall cover of auxiliary wheel C (40) is equipped with and advances wheel C (41), it keeps away from to advance casing (34) one side surface fixedly connected with connecting axle B (35) and connecting axle C (35) to advance the outer slide way C (36) of frame C (33) and rotate on the inner wall C (33) and link the inner wall C (35) and rotate the inner chute (33) and link (32) and set up and connect axle C (35) and inner wall C (33) and inner chute (33) and inner wall C (32) and inner chute (33) and inner wall Interior framework (33) sliding connection, the lateral wall cover of interior framework (33) be equipped with interior framework (33) sliding connection's go-between (37), just connecting axle C (36) with the internal surface of go-between (37) is rotated and is connected.

4. The workpiece polishing device according to claim 3, characterized in that: an adjusting clamping block (42) is arranged on the outer side of the outer frame body (32), a rotating shaft of the adjusting clamping block (42) penetrates through the outer side wall of the outer frame body (32) and extends to one of the connecting shafts C (36), the rotating shaft of the adjusting clamping block (42) is fixedly connected with the connecting shaft C (36), and the adjusting clamping block (42) is connected with the outer frame body (32) in a sliding mode.

5. The workpiece polishing device according to claim 4, characterized in that: one surface of the adjusting clamping block (42) close to the outer frame body (32) is an arc surface, and anti-skidding gaskets are fixed on two sides of the arc surface of the adjusting clamping block (42).

6. The workpiece polishing device according to claim 3, characterized in that: still including setting up being polishing subassembly (10) with clean subassembly (20) between propulsion subassembly (30), clean subassembly (20) are including setting up motor B (21) in the pipe fitting below and fixing clean brush (22) and the symmetry on motor B (21) output are fixed two telescopic part of motor B (21) lower surface, every group telescopic part all is including fixing slide rail B (23) of motor B (21) lower surface and installing connecting rod (24) on slide rail B (23) and fixing fixed block (25) on the surface of base (1), one side of fixed block (25) be equipped with base (1) sliding connection's sliding block B (26), threaded connection has lead screw (27) on B (26), just the one end of lead screw (27) runs through the surface of sliding block B (26), and extend to on fixed block (25) with fixed block (25) rotate and be connected, two sets of connecting rod (24) are close to the one end of sliding block B (26) through the pivot with the lateral wall of sliding block B (26) rotates and is connected.

7. The workpiece polishing device according to claim 6, characterized in that: connecting rod (24) are for crisscross formation X type and two mutual articulated rod member structures, the one end of connecting rod (24) top with slide rail B (23) rotate to be connected, and the other end is in through pivot sliding connection in the spout of seting up on slide rail B (23), the one end of connecting rod (24) below rotates to be connected base (1) holds the intracavity on the surface, and the other end rotates to be connected on the lateral wall of sliding block B (26).