CN220881928U - Clamping device - Google Patents

Abstract

The application provides a clamping device, which is used for clamping a workpiece and polishing the workpiece by matching with a polishing wheel, and comprises: the output end of the mechanical arm is provided with an outer ring and an inner ring which can rotate relatively; the clamping assembly comprises a bottom plate, a cantilever, a telescopic connecting piece, a bearing seat and a rotating pressing piece, wherein the bottom plate is connected to the outer ring, the bearing seat is connected to the inner ring, the rotating pressing piece is rotatably connected to the cantilever, the bottom plate and the cantilever are arranged at intervals, the telescopic connecting piece is connected between the bottom plate and the cantilever and is suitable for driving the cantilever to be far away from or close to the bearing seat so as to clamp a workpiece placed between the bearing seat and the rotating pressing piece, and the workpiece is suitable for being contacted with a polishing wheel under the driving of the mechanical arm and is driven to rotate along with the bearing seat under the driving of the mechanical arm. According to the application, the telescopic connecting piece drives the cantilever to be far away from or close to the bottom plate, so that the workpiece is clamped, the mechanical arm is convenient to polish the workpiece by matching with the polishing wheel, and the clamping operation is simple.

Description

Clamping device

Technical Field

The application relates to the technical field of machining of middle frames of metal mobile phones, in particular to a clamping device for polishing a workpiece by matching with a polishing wheel.

Background

The mobile phone middle frame needs to be polished after the production and processing are completed. At present, polishing wheels and a transfer mechanism for transferring and fixing the mobile phone center are generally adopted for polishing the mobile phone center. The mobile phone middle frame is fixed by the manually detached jig in the transfer mechanism, so that the labor intensity is high, the operation is complicated, and the polishing efficiency is low.

Disclosure of utility model

In view of the above, it is necessary to provide a clamping device to solve the problem of low polishing efficiency caused by poor fixing effect on the mobile phone middle frame in the prior art.

The embodiment of the application provides a clamping device which is used for clamping a workpiece and polishing the workpiece by matching with a polishing wheel, and comprises the following components: the output end of the mechanical arm is provided with an outer ring and an inner ring which can rotate relatively; the clamping assembly comprises a bottom plate, a cantilever, a telescopic connecting piece, a bearing seat and a rotating pressing piece, wherein the bottom plate is connected with the outer ring, the bearing seat is connected with the inner ring, the rotating pressing piece is rotatably connected with the cantilever, the bottom plate and the cantilever are arranged at intervals, the telescopic connecting piece is connected between the bottom plate and the cantilever and is suitable for driving the cantilever to be far away from or close to the bearing seat so as to clamp a workpiece arranged between the bearing seat and the rotating pressing piece, and the workpiece is suitable for being contacted with a polishing wheel under the driving of the mechanical arm and is driven to rotate along with the bearing seat under the driving of the mechanical arm.

In the clamping device provided by the embodiment, firstly, the workpiece is placed on the bearing seat, then, the telescopic connecting piece drives the cantilever to be close to the bottom plate so as to drive the rotary pressing piece to fix and clamp the workpiece, then, the mechanical arm drives the clamping component to move, the side wall of the workpiece is contacted with the polishing wheel, and finally, the rotary driving piece drives the inner ring to rotate so as to drive the bearing seat to rotate, so that the workpiece clamped between the bearing seat and the rotary pressing piece rotates, and the peripheral walls of the workpiece in different directions can be contacted with the polishing wheel to be polished by the polishing wheel. It can be appreciated that the clamping device provided by the embodiment of the application can load the clamping assembly with the workpiece fixed on the mechanical arm at a place far away from the polishing wheel, and then can move the clamping assembly to a place close to the polishing wheel based on the capability of the mechanical arm to move in space, so that the peripheral wall of the workpiece contacts the polishing wheel to be polished by the polishing wheel. Further, the telescopic connecting piece drives the cantilever to be far away from or close to the bottom plate, so that the workpiece can be fixed, and the mechanical arm can be matched with the polishing wheel to polish the peripheral wall of the workpiece conveniently. In addition, under the drive of arm, the work piece can be followed and bear the seat rotation, can let the perisporium of work piece different directions all contact with the throwing aureola, and then is polished. Further, the peripheral wall of the workpiece can be brought into contact with the polishing wheel at different angles based on the ability of the robot arm itself to move in space. Therefore, the clamping device provided by the embodiment of the application has simple fixing operation on the workpiece, is beneficial to improving the polishing efficiency of the workpiece, realizes semi-automatic polishing through the cooperation of the mechanical arm and the clamping assembly, and is beneficial to reducing the labor intensity of workers. In addition, the whole structure is high in universality, can be applied to various application occasions, and is high in practicability.

In some embodiments, the clamping device further comprises: the jig comprises a jig bottom plate and a jig cover plate, wherein the jig bottom plate and the jig cover plate are clamped between the bearing seat and the rotating pressing piece, and the workpiece is clamped between the jig bottom plate and the jig cover plate, and a positioning bolt matched with a through hole in the workpiece is arranged on the jig bottom plate.

In some embodiments, the carrier comprises: the tool apron rotate connect in rotatory pressure piece.

In some embodiments, the clamping device further comprises: the positioning driving piece is arranged on the cantilever; the clamping pin is connected to the output end of the positioning driving piece, a clamping groove is formed in one side, facing the cantilever, of the jig cover plate, and the positioning driving piece is used for driving the clamping pin to be close to or far away from the jig cover plate so that the clamping pin can be inserted into or separated from the clamping groove; the positioning driving piece drives the bayonet lock to be inserted into the clamping groove, so that the fixture cover plate is prevented from deviating along with the cantilever away from the bottom plate; the positioning driving piece drives the clamping pin to be separated from the clamping groove so as to allow the jig cover plate to rotate along with the bearing seat.

In some embodiments, the clamping device is used for polishing a plurality of the workpieces in batches, and the clamping assembly further comprises: the fixture comprises one or more fixture middle plates, a plurality of workpieces and the middle plates are clamped between the fixture bottom plate and the fixture cover plate alternately, wherein positioning holes for being matched with the positioning bolts are formed in the fixture middle plates.

In some embodiments, the carrier comprises: the fixture comprises an inner ring, a fixture bottom plate, a fixture middle plate and a fixture cover plate, wherein the fixture bottom plate is connected with the inner ring, a locating pin is arranged on the fixture bottom plate, a locating groove matched with the locating pin is arranged on the fixture bottom plate, and the fixture bottom plate is used for bearing the fixture bottom plate, the fixture middle plate and the fixture cover plate.

In some embodiments, the clamping assembly further comprises: the pressing block is connected with the rotating pressing piece and used for being pressed or kept away from the jig cover plate under the driving of the telescopic connecting piece.

In some embodiments, the rotary press comprises: the anti-drop ring, axle core, bearing and fastener, the bearing install in the cantilever, the anti-drop ring is located the cantilever is kept away from bottom plate one side, the axle core is from the anti-drop ring is to being close to the orientation of bottom plate extends, the bearing housing is located the axle core, the fastener is from the anti-drop ring is to being close to the orientation of bottom plate extends, the tip of fastener stretches out the axle core.

In some embodiments, the telescopic connection comprises: the piston is connected with the driving body through the piston rod, the piston is connected with the cantilever, and the driving body is connected with the bottom plate.

In some embodiments, the clamping device further comprises: and the protection cover is buckled on the piston and is used for covering the end part of the driving body when the piston rod is retracted into the driving body.

Drawings

Fig. 1 is a schematic view illustrating the cooperation of a holding device and a polishing wheel according to an embodiment of the present application.

Fig. 2 is a schematic view illustrating an opened state of a clamping device according to an embodiment of the application.

Fig. 3 is a schematic view in partial cross-section of the clamping device shown in fig. 2 in the direction III-III.

Fig. 4 is a schematic view of the clamping device shown in fig. 2 and a pressing state of a single workpiece.

Fig. 5 is a schematic view of the clamping device shown in fig. 2 and an open state of a single workpiece.

Fig. 6 is a schematic view of the clamping device shown in fig. 2 and a polishing state of a single workpiece.

Fig. 7 is a schematic diagram of a clamping device and a pressing state of a plurality of workpieces according to an embodiment of the application.

Fig. 8 is a schematic view in partial cross-section of the clamping device of fig. 7 taken along direction VIII-VIII.

Fig. 9 is a schematic view showing an opened state of the clamping device shown in fig. 7.

Fig. 10 is a schematic diagram illustrating an assembled state of the jig bottom plate, the jig middle plate, the jig cover plate and the plurality of workpieces shown in fig. 7.

Fig. 11 is a schematic view showing an opened state of the clamping device and a plurality of workpieces shown in fig. 7.

Fig. 12 is a schematic view showing a polishing state of the clamping device and a plurality of workpieces shown in fig. 7.

Description of the main reference signs

Clamping device 100

Polishing wheel 10

Mechanical arm 20

Outer ring 21

Inner ring 22

Rotation driving member 23

Clamping assembly 30

Bottom plate 31

Ring 311

Positioning through slot 312

Cantilever 32

Expansion joint 33

Drive body 331

Piston rod 332

Piston 333

Bearing seat 34

Connecting piece 341

Fixed base 342

Locating pin 343

Rotating press holder 35

Anticreep ring 351

Shaft core 352

Bearing 353

Fastener 354

Briquette 36

Jig base plate 40

Positioning bolt 41

Middle plate 42

Jig cover plate 50

Grooves 51, 91

Clamping groove 52

Reinforcing plate 60

Positioning portion 61

Protective cover 70

Positioning driving piece 80

Detent 81

Workpiece 200

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar components or components having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present application and are not to be construed as limiting the present application.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, and the described embodiments are merely some, rather than all, embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the description of the present application, it is to be noted that unless explicitly specified and defined otherwise, the meaning of "a plurality" is two or more unless explicitly specified otherwise.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communication between the two components or interaction relationship between the two components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the embodiments of the present application, it is noted that unless specifically stated and limited otherwise, words such as "for example" and the like are used to mean serving as examples, illustrations, or descriptions. Any embodiment or design described herein as "for example" in embodiments of the application should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "for example" is intended to present related concepts in a concrete fashion. The following embodiments and features of the embodiments may be combined with each other without conflict.

In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.

Referring to fig. 1, an embodiment of the present application provides a clamping device 100 for clamping a workpiece 200 and polishing the workpiece 200 with a polishing wheel 10. In this embodiment, the workpiece 200 is a mobile phone middle frame.

In some embodiments, the clamping device 100 includes a robotic arm 20 and a clamping assembly 30. The output end of the mechanical arm 20 is provided with an outer ring 21 and an inner ring 22 which can rotate relatively. The clamping assembly 30 includes a base plate 31, a cantilever 32, a telescopic connector 33, a bearing seat 34 and a rotary pressing member 35. The bottom plate 31 is connected to the outer ring 21, the bearing seat 34 is connected to the inner ring 22, the rotating holding member 35 is rotatably connected to the cantilever 32, the bottom plate 31 and the cantilever 32 are arranged at intervals, and the telescopic connecting member 33 is connected between the bottom plate 31 and the cantilever 32 and is suitable for driving the cantilever 32 to be far away from or close to the bearing seat 34. The workpiece 200 is adapted to contact the polishing wheel 10 under the drive of the robot arm 20 and rotate along with the carrier 34 under the drive of the robot arm 20.

In the clamping device 100 provided in the above embodiment, firstly, the workpiece 200 is placed on the carrying seat 34, then, the telescopic connecting piece 33 drives the cantilever 32 to approach the bottom plate 31 so as to drive the rotating pressing piece 35 to fix and clamp the workpiece 200, then, the mechanical arm 20 drives the clamping assembly 30 to move so that the sidewall of the workpiece 200 contacts with the polishing wheel 10, and finally, the mechanical arm 20 drives the inner ring 22 to rotate so as to drive the carrying seat 34 to rotate, thereby enabling the workpiece 200 clamped between the carrying seat 34 and the rotating pressing piece 35 to rotate, and enabling the peripheral walls of the workpiece 200 in different directions to contact with the polishing wheel 10 so as to be polished by the polishing wheel 10. It will be appreciated that the clamping device 100 according to the present embodiment of the application may load the clamping assembly 30 with the workpiece 200 fixed to the mechanical arm 20 at a location far from the polishing wheel 10, and then, based on the capability of the mechanical arm 20 to move in space, the clamping assembly 30 can be moved to a position close to the polishing wheel 10, so that the peripheral wall of the workpiece 200 contacts the polishing wheel 10 to be polished by the polishing wheel 10. Further, the telescopic connecting piece 33 drives the cantilever 32 to be far away from or close to the bottom plate 31, so that the workpiece 200 can be fixed, and the mechanical arm 20 can be matched with the polishing wheel 10 to polish the peripheral wall of the workpiece 200 conveniently. In addition, the workpiece 200 can rotate along with the bearing seat 34 under the driving of the mechanical arm 20, so that the peripheral walls of the workpiece 200 in different directions can be contacted with the polishing wheel 10 and polished. Further, the peripheral wall of the workpiece 200 may be brought into contact with the polishing wheel 10 at different angles based on the ability of the robotic arm 20 itself to move in space. Therefore, the clamping device 100 provided by the embodiment of the application has simple fixing operation on the workpiece 200, is beneficial to improving the polishing efficiency of the workpiece 200, realizes semi-automatic polishing through the cooperation of the mechanical arm 20 and the clamping assembly 30, and is beneficial to reducing the labor intensity of workers. In addition, the whole structure is high in universality, can be applied to various application occasions, and is high in practicability.

In some embodiments, as shown in fig. 1, a rotation driving member 23 is disposed in the mechanical arm 20, and the rotation driving member 23 drives the inner ring 22 to rotate relative to the outer ring 21. For example, the rotary driving member 23 may be a rotary motor capable of driving the workpiece 200 attached to the carrier 34 of the inner ring 22 to rotate so that the peripheral walls of the workpiece 200 in different directions can be brought into contact with the polishing wheel 10 to be polished by the polishing wheel 10.

As shown in connection with fig. 2, in some embodiments, the end of the bottom plate 31 is provided with a circular ring 311. The inner ring 22 penetrates through the inside of the circular ring 311 and is connected to the bearing seat 34, and the outer ring 21 is connected to the bottom plate 31 through the circular ring 311. In the above embodiment, the bottom plate 31 is directly sleeved on the inner ring 22 and connected with the outer ring 21, so that the mechanical arm 20 can drive the bottom plate 31 and the bearing seat 34 to move, the inner ring 22 drives the bearing seat 34 to rotate, the connection structure is simple, the disassembly is convenient, and the maintenance is simple. Illustratively, the bottom plate 31 and the circular ring 311 may be connected by pin positioning and screw fixing, which can enhance the stability of the connection structure, without limitation.

As shown in connection with fig. 1, 2, 4, 6, 7, 9, 11, 12, in some embodiments, the carrier 34 is removably connected to the inner ring 22. The carrier 34 has different specifications, which include the height of the carrier 34. In the above embodiment, the carrying seat 34 is detachably connected with the inner ring 22, so that the carrying seat 34 with different specifications can be replaced according to different application occasions, so as to carry different types and different numbers of workpieces 200, and the adjustment and maintenance are convenient. Illustratively, the bearing seat 34 and the inner ring 22 may be detachably connected by pin positioning, screw fixing, etc., so as to enhance the stability of the connection structure, which is not limited.

As shown in connection with fig. 2, in some embodiments, the clamping device 100 further comprises a stiffening plate 60. The reinforcing plate 60 is connected to the bottom plate 31. Wherein the telescopic connection 33 is mounted to the reinforcing plate 60. In the above embodiment, the telescopic connecting piece 33 may be mounted on the reinforcing plate 60 by a screw, and the reinforcing plate 60 may play a supporting role on the telescopic connecting piece 33, so as to prevent the telescopic connecting piece 33 from bending, tilting, etc. due to excessive clamping pressure when the driving cantilever 32 approaches the bottom plate 31.

In some embodiments, the bottom plate 31 is provided with a plurality of positioning through slots 312, the end portion of the reinforcing plate 60 connected with the bottom plate 31 is provided with a positioning portion 61, and the positioning portion 61 can be inserted into the positioning through slots 312, so that the structure is stable, the disassembly is simple, and the supporting effect on the reinforcing plate 60 can be achieved. In addition, according to different application scenes, the position of the reinforcing plate 60 can be moved by adjusting the position of the positioning through groove 312 inserted by the positioning part 61, so that the reinforcing plate is high in universality and convenient to adjust, and can be applied to various application occasions.

As shown in connection with fig. 2, in some embodiments, the telescopic connection 33 comprises a drive body 331, a piston rod 332, and a piston 333. The piston 333 is connected to the driving body 331 via a piston rod 332. The piston 333 is connected to the cantilever 32. The driving body 331 is connected to the bottom plate 31. In the above embodiment, the piston rod 332 is movably accommodated in the driving body 331, and the driving body 331 is used for driving the piston rod 332 to stretch and retract so as to drive the piston 333 to stretch and retract relative to the driving body 331, and the piston rod 332 plays a guiding role in the moving direction of the piston 333, so as to prevent the piston 333 from moving when driving the cantilever 32 to move.

In some embodiments, the clamping device 100 further comprises a protective cover 70. The shield 70 is fastened to the piston 333. The shield 70 is used to cover the end of the driving body 331 when the piston rod 332 is retracted into the driving body 331. The driving body 331 may be a cylinder, for example. In the above embodiment, the protection cover 70 is fastened on the piston 333, so as to cover the end of the driving body 331 when the piston rod 332 is retracted into the driving body 331, thereby shielding the polishing wheel 10 from foreign matters such as polishing wax generated during polishing the workpiece 200, and preventing the foreign matters from falling into the driving body 331 to cause the driving body 331 to be blocked.

Illustratively, the piston 333 and the cantilever 32 may be coupled by way of a pin-set, screw-set. The driving body 331 is fixed to the reinforcing plate 60 by screws.

As shown in connection with fig. 1 and 3, in some embodiments, the turning press 35 includes a slip-off prevention ring 351, a shaft core 352, a bearing 353, and a fastener 354. Bearing 353 is mounted to cantilever 32. The anti-drop ring 351 is provided on the side of the cantilever 32 remote from the base plate 31. The shaft core 352 extends from the slip-off prevention ring 351 in a direction approaching the bottom plate 31. The bearing 353 is sleeved on the shaft core 352. The fastener 354 extends from the anti-slip ring 351 in a direction toward the bottom plate 31, and an end of the fastener 354 protrudes from the shaft core 352.

In the above embodiment, the bearing 353 is engaged with the shaft core 352, so that friction is reduced when the shaft core 352 rotates with the workpiece 200, and the rotation is smoother. In addition, the slip-off preventing ring 351 can prevent the shaft core 352 from being loosened or removed during rotation by increasing the friction between the bearing 353 and the shaft core 352. The anti-slip ring 351 can also improve the load carrying capacity and durability of the bearing 353, and extend the service life of the bearing 353. The shaft core 352 and the anti-slip ring 351 are fixed by the fastener 354, and the shaft core 352 and the anti-slip ring 351 are prevented from slipping off.

As shown in connection with fig. 1 and 4, in some embodiments, the clamping device 100 further includes a jig base plate 40 and a jig cover plate 50. The jig bottom plate 40 and the jig cover plate 50 are clamped between the carrier 34 and the rotary pressing member 35. The workpiece 200 is clamped between the jig base plate 40 and the jig cover plate 50. Wherein, the fixture bottom plate 40 is provided with a positioning pin 41 for matching with a through hole (not shown) on the workpiece 200.

In the above embodiment, the workpiece 200 is clamped by the jig bottom plate 40 and the jig cover plate 50, so that the workpiece 200 is prevented from being damaged, and the clamping stability is improved. In addition, when the workpiece 200 is clamped between the jig base plate 40 and the jig cover plate 50, the peripheral wall of the workpiece 200 can be exposed for polishing by the polishing wheel 10.

Referring to fig. 2, in some embodiments, a positioning pin 41 for matching with a through hole on the workpiece 200 is provided on the jig base plate 40 to position the workpiece 200 placed on the jig base plate 40, so as to prevent the workpiece 200 from being offset during rotation.

As shown in connection with fig. 2, in some embodiments, the carrier 34 includes an i-shaped connector 341 when the clamping device 100 is used to secure a single workpiece 200. An i-shaped connector 341 is connected to the inner ring 22. The jig base plate 40 is connected to the i-shaped connector 341, and the jig cover plate 50 is rotatably connected to the rotary press holder 35.

In the above embodiment, the tool bottom plate 40 is carried by the tool-shaped connecting piece 341, so that the workpiece 200 can be supported and carried more firmly. The axial length of the I-shaped connecting piece 341 is close to that of the telescopic connecting piece 33, so that the workpiece 200 can be supported to a certain extent, the driving stroke of the driving body 331 is reduced, the clamping efficiency is further improved, and the resource consumption is reduced.

Further, as shown in fig. 3, the fixture cover 50 is provided with a groove 51, and the end of the fastener 354 extends into the groove 51. In the above embodiment, the jig cover plate 50 and the jig bottom plate 40 can be respectively connected to the cantilever 32 and the I-shaped connecting piece 341, so that an operator does not need to take and place the jig cover plate 50 and the jig bottom plate 40, and only needs to manually place the workpiece 200 on the jig bottom plate 40, the telescopic connecting piece 33 automatically drives the jig cover plate 50 to be close to the jig bottom plate 40, so that the clamping and fixing of the workpiece 200 can be realized, semi-automatic operation is realized, the operation is convenient, the labor intensity is reduced, and the risk that the workpiece 200 is damaged due to the manual taking and placing of the jig cover plate 50 is prevented.

As shown in connection with fig. 2 and 3, in some embodiments, the clamping device 100 further includes a positioning drive 80 and a bayonet 81. The positioning drive 80 is mounted to the cantilever 32. The bayonet lock 81 is connected to the output end of the positioning driving member 80, and the side of the fixture cover plate 50 facing the cantilever 32 is provided with a clamping groove 52, and the positioning driving member 80 is used for driving the bayonet lock 81 to approach and depart from the fixture cover plate 50, so that the bayonet lock 81 is inserted into or separated from the clamping groove 52. Wherein, the positioning driving member 80 drives the bayonet 81 to insert into the bayonet 52, so as to prevent the fixture cover 50 from being deviated along with the cantilever 32 away from the bottom plate 31. The positioning driving member 80 drives the bayonet 81 to disengage from the bayonet 52, so as to allow the jig cover 50 to rotate along with the carrier 34. Illustratively, the positioning driver 80 may be a driving cylinder. In the above embodiment, the positioning driving member 80 drives the bayonet lock 81 to be clamped into the bayonet groove 52, so as to limit the jig cover 50, and ensure that the jig cover 50 accurately presses down the workpiece 200 on the jig bottom plate 40 along with the cantilever 32 approaching the bottom plate 31.

As shown in fig. 2 to 6, the clamping device 100 provided in the above embodiment is suitable for polishing a single workpiece 200 in cooperation with the polishing wheel 10, and the polishing steps are as follows: (1) Referring to fig. 2 and 3, the positioning driving member 80 drives the locking pin 81 to be locked into the locking groove 52, so as to limit the fixture cover plate 50. (2) Referring to fig. 5, first, the telescopic link 33 drives the cantilever 32 and the jig cover 50 connected to the rotary press 35 away from the jig base 40 on the i-shaped link 341, and then, the workpiece 200 is placed on the jig base 40, and the workpiece 200 is positioned by the positioning pins 41. (3) Referring to fig. 4, the telescopic connection 33 drives the cantilever 32 and the jig cover 50 connected to the rotary pressing member 35 to approach the jig base 40 until the workpiece 200 on the jig base 40 is pressed. (4) Referring to fig. 3 and 6, first, the positioning driving member 80 drives the bayonet 81 to disengage from the bayonet 52, then, the mechanical arm 20 drives the workpiece 200 clamped by the clamping assembly 30 to contact with the polishing wheel 10, then, the rotation driving member 23 drives the inner ring 22 to rotate, the inner ring 22 drives the jig base plate 40 connected to the i-shaped connecting member 341 of the inner ring 22 to rotate, the rotation pressing member 35 connected to the cantilever 32 and the jig cover plate 50 rotate synchronously with the jig base plate 40, and the workpiece 200 rotates accordingly, so that the peripheral walls of the workpiece 200 in different directions can contact with the polishing wheel 10 to be polished by the polishing wheel 10.

In the above embodiment, when polishing a single workpiece 200, an operator does not need to take and place the jig cover plate 50 and the jig bottom plate 40, and only needs to manually place the workpiece 200 on the jig bottom plate 40, the telescopic connecting piece 33 drives the jig cover plate 50 to be close to the jig bottom plate 40, so as to clamp and fix the workpiece 200, thereby realizing semi-automatic operation, being convenient to operate, reducing labor intensity, and preventing the risk of damaging the workpiece 200 caused by taking and placing the jig cover plate 50.

As shown in connection with fig. 7, in some embodiments, the clamping assembly 30 further includes one or more jig middle plates 42. The plurality of workpieces 200 and the jig middle plate 42 are alternately clamped between the jig bottom plate 40 and the jig cover plate 50. Wherein, a positioning block (not shown) for matching with the positioning pin 41 is disposed on the jig middle plate 42. For example, in this embodiment, the polishing operation needs to be performed on 6 workpieces 200 at the same time, and then the 5 jig middle plates 42 are required to assist the jig bottom plate 40 and the jig cover plate 50 in positioning the 6 workpieces 200.

In the above embodiment, the work pieces 200 and the jig middle plates 42 are alternately clamped between the jig bottom plate 40 and the jig cover plate 50, and at the same time, the plurality of work pieces 200 and the plurality of jig middle plates 42 are positioned by the positioning pins 41.

As shown in connection with fig. 9, the carrier 34 includes a stationary base 342. A stationary base 342 is connected to the inner ring 22. The fixing base 342 is provided with a positioning pin 343, and the fixture bottom plate 40 is provided with a positioning slot (not shown) that mates with the positioning pin 343. The fixing base 342 is used for bearing the fixture bottom plate 40, the fixture middle plate 42 and the fixture cover plate 50. In the above embodiment, the fixture bottom plate 40 is supported and positioned by the fixing base 342, so that the plurality of workpieces 200 can be supported and supported more firmly, and the fixture bottom plate 40 is prevented from being deviated during the rotation process. In addition, the fixing base 342 has strong versatility and can be applied to various applications.

As shown in connection with fig. 9, the clamp assembly 30 also includes a press block 36. The pressing block 36 is connected with the rotating pressing piece 35, and the pressing block 36 is used for pressing or keeping away from the jig cover plate 50 under the driving of the telescopic connecting piece 33. In the above embodiment, the pressing block 36 is pressed against the jig cover plate 50, so that the pressing surface can be enlarged, and the pressing balance can be further enhanced.

Referring to fig. 8, the press block 36 is provided with a groove 91, and the end of the fastener 354 is inserted into the groove 91. In the above embodiment, the pressing block 36 is connected by the fastener 354, ensuring that the pressing block 36 can rotate in synchronization with the rotating pressing piece 35.

Referring to fig. 7 to 12, the clamping device 100 provided in the foregoing embodiment is suitable for batch polishing a plurality of workpieces 200 with a polishing wheel 10, and the polishing steps are as follows: (1) Referring to fig. 10, first, 6 workpieces 200 and 5 jig middle plates 42 are alternately placed on the jig bottom plate 40, and then, the jig cover plate 50 is fastened to the top workpiece 200. (2) Referring to fig. 9, the telescopic link 33 drives the cantilever 32 and the pressing block 36 connected to the rotary pressing member 35 away from the fixed base 342. (3) Referring to fig. 11, a plurality of workpieces 200 placed in advance are placed on a fixing base 342, and the jig base plate 40 is positioned by positioning pins 343. (3) Referring to fig. 7, the telescopic link 33 drives the cantilever 32 and the pressing block 36 connected to the rotary pressing member 35 to approach the jig cover 50 until the jig cover 50 is pressed. (4) Referring to fig. 12, first, the mechanical arm 20 drives the plurality of workpieces 200 clamped by the clamping assembly 30 to contact with the polishing wheel 10, then, the rotation driving member 23 drives the inner ring 22 to rotate, the inner ring 22 drives the plurality of workpieces 200 connected to the bearing base of the inner ring 22 to rotate, the rotation pressing member 35 rotationally connected to the cantilever 32 and the pressing block 36 synchronously rotate along with the fixed base 342, and then the plurality of workpieces 200 rotate along with the rotation pressing member, so that peripheral walls of the plurality of workpieces 200 in different directions can contact with the polishing wheel 10 to be polished by the polishing wheel 10.

In the above embodiment, when polishing is performed on a plurality of workpieces 200 simultaneously, the universal base is designed, so that the universal base can be suitable for workpieces 200 of different types and sizes, and is convenient to adjust and maintain; the fixture middle plate 42 is utilized to position a plurality of workpieces 200, so that the polishing device is suitable for batch polishing operation and has high polishing efficiency; the pressing block 36 is utilized to realize the compaction and clamping of the workpiece 200, so that the clamping cost is saved, and the labor intensity of operators is reduced.

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

Finally, it should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present application without departing from the spirit and scope of the technical solution of the present application.

Claims (10)

1. A clamping device for clamping a workpiece and polishing the workpiece in cooperation with a polishing wheel, comprising:

The output end of the mechanical arm is provided with an outer ring and an inner ring which can rotate relatively;

the clamping assembly comprises a bottom plate, a cantilever, a telescopic connecting piece, a bearing seat and a rotating pressing piece, wherein the bottom plate is connected with the outer ring, the bearing seat is connected with the inner ring, the rotating pressing piece is rotatably connected with the cantilever, the bottom plate and the cantilever are arranged at intervals, the telescopic connecting piece is connected between the bottom plate and the cantilever and is suitable for driving the cantilever to be far away from or close to the bearing seat so as to clamp a workpiece arranged between the bearing seat and the rotating pressing piece, and the workpiece is suitable for being contacted with a polishing wheel under the driving of the mechanical arm and is driven to rotate along with the bearing seat under the driving of the mechanical arm.

2. The clamping device as recited in claim 1, further comprising:

The jig comprises a jig bottom plate and a jig cover plate, wherein the jig bottom plate and the jig cover plate are clamped between the bearing seat and the rotating pressing piece, and the workpiece is clamped between the jig bottom plate and the jig cover plate, and a positioning bolt matched with a through hole in the workpiece is arranged on the jig bottom plate.

3. The clamping device as claimed in claim 2, wherein the carrier comprises:

The tool apron rotate connect in rotatory pressure piece.

4. A clamping device as claimed in claim 3, characterized in that the clamping device further comprises:

The positioning driving piece is arranged on the cantilever;

The clamping pin is connected to the output end of the positioning driving piece, a clamping groove is formed in one side, facing the cantilever, of the jig cover plate, and the positioning driving piece is used for driving the clamping pin to be close to or far away from the jig cover plate so that the clamping pin can be inserted into or separated from the clamping groove;

The positioning driving piece drives the bayonet lock to be inserted into the clamping groove, so that the fixture cover plate is prevented from deviating along with the cantilever away from the bottom plate; the positioning driving piece drives the clamping pin to be separated from the clamping groove so as to allow the jig cover plate to rotate along with the bearing seat.

5. The clamping device of claim 2, wherein the clamping assembly further comprises:

The fixture comprises one or more fixture middle plates, a plurality of workpieces and the middle plates are clamped between the fixture bottom plate and the fixture cover plate alternately, wherein positioning holes for being matched with the positioning bolts are formed in the fixture middle plates.

6. The clamping device of claim 5 wherein said carrier comprises:

The fixture comprises an inner ring, a fixture bottom plate, a fixture middle plate and a fixture cover plate, wherein the fixture bottom plate is connected with the inner ring, a locating pin is arranged on the fixture bottom plate, a locating groove matched with the locating pin is arranged on the fixture bottom plate, and the fixture bottom plate is used for bearing the fixture bottom plate, the fixture middle plate and the fixture cover plate.

7. The clamping device of claim 6, wherein the clamping assembly further comprises:

The pressing block is connected with the rotating pressing piece and used for being pressed or kept away from the jig cover plate under the driving of the telescopic connecting piece.

8. The clamping device of claim 1 wherein said rotary press comprises:

The anti-drop ring, axle core, bearing and fastener, the bearing install in the cantilever, the anti-drop ring is located the cantilever is kept away from bottom plate one side, the axle core is from the anti-drop ring is to being close to the orientation of bottom plate extends, the bearing housing is located the axle core, the fastener is from the anti-drop ring is to being close to the orientation of bottom plate extends, the tip of fastener stretches out the axle core.

9. The clamping device of claim 1, wherein the telescoping connection comprises:

The piston is connected with the driving body through the piston rod, the piston is connected with the cantilever, and the driving body is connected with the bottom plate.

10. The clamping device as recited in claim 9, further comprising:

And the protection cover is buckled on the piston and is used for covering the end part of the driving body when the piston rod is retracted into the driving body.