CN115837615A

CN115837615A - Grinding and polishing device and grinding and polishing machine tool with same

Info

Publication number: CN115837615A
Application number: CN202310098204.2A
Authority: CN
Inventors: 刘文志; 郑秀芳; 黄丰强; 林鸿榕; 陈洪; 张世煌; 刘鹏勇; 薛松海; 占稳; 叶明�; 潘龙
Original assignee: China National Machinery Institute Group Haixi Fujian Branch Co ltd
Current assignee: China National Machinery Institute Group Haixi Fujian Branch Co ltd
Priority date: 2023-02-10
Filing date: 2023-02-10
Publication date: 2023-03-24
Anticipated expiration: 2043-02-10
Also published as: CN115837615B

Abstract

The application discloses grinding and polishing device and have its grinding and polishing lathe. The grinding and polishing device comprises a positioning component, a grinding and polishing head and a holding component. The positioning component comprises a positioning seat and a positioning sleeve, the positioning sleeve is fixedly arranged on the positioning seat, and the axial direction of the positioning sleeve is vertical to the surface of the workpiece to be polished; the grinding and polishing head comprises a supporting part, a driving part, a screw rod assembly, a guide rod and a grinding and polishing disc; the enclasping component comprises a driving mechanism and an enclasping mechanism, the driving mechanism is installed on the positioning seat, the enclasping mechanism is arranged on the positioning sleeve and is connected with the driving mechanism, the enclasping mechanism is provided with a locking position which is used for enclasping the guide rod and is fixed in the positioning sleeve and an unlocking position which is used for avoiding the guide rod so that the guide rod can move back and forth along the axis direction of the positioning sleeve, and the driving mechanism is used for driving the enclasping mechanism to switch between the locking position and the unlocking position. The grinding and polishing machine tool can solve the problem that the grinding and polishing quality of a workpiece is difficult to guarantee when a grinding and polishing machine tool in the prior art is used for processing.

Description

Grinding and polishing device and grinding and polishing machine tool with same

Technical Field

The application relates to the technical field of plate-shaped structure processing machines, in particular to a grinding and polishing device and a grinding and polishing machine tool with the same.

Background

The grinding and polishing machine tool for the super-large-caliber organic glass plate is used for grinding and polishing the plane of the super-large-caliber organic glass plate, and the working stability of the grinding and polishing machine tool is directly related to the planeness of the organic glass plate and the thickness of the organic glass plate.

The grinding head of a common grinding and polishing machine tool is controlled to move in a mode of controlling a single screw rod in a vertical direction, when the mode is used for an ultra-large-caliber grinding and polishing machine tool, the grinding head needs to be located at the same plane height for grinding for a long time due to the large size of a workpiece (the diameter is larger than or equal to 3500), the grinding head and a polishing disc have large mass, irreversible influence is caused on the precision of a screw rod when the grinding head and the polishing disc are processed for a long time, and the precision of the grinding machine tool during grinding is seriously interfered. That is to say, the vertical motion of the grinding head is controlled by the screw rod independently, so that the risk is high, and the plane grinding and polishing quality of the organic glass plate is difficult to ensure.

Disclosure of Invention

The main purpose of the present application is to provide a grinding and polishing device and a grinding and polishing machine tool with the same, so as to solve at least the problem that the grinding and polishing quality of a workpiece is difficult to guarantee when the grinding and polishing machine tool in the prior art is used for processing.

The application provides a grinding and polishing device, includes:

the positioning part comprises a positioning seat and a positioning sleeve, the positioning seat is arranged at the end part of a preset cantilever, the positioning sleeve is fixedly arranged on the positioning seat, and the axial direction of the positioning sleeve is vertical to the surface of a workpiece to be ground and polished;

the grinding and polishing head comprises a supporting part, a driving part, a screw rod assembly, a guide rod and a grinding and polishing disc, the guide rod penetrates through the positioning sleeve and can reciprocate along the axial direction of the positioning sleeve, the supporting part is arranged at the top end of the guide rod, the grinding and polishing disc is fixedly connected to the bottom end of the guide rod, the driving part is arranged on the supporting part, the screw rod assembly is connected between the positioning sleeve and the driving part, and the driving part is used for driving the screw rod assembly to stretch along the height direction of the positioning sleeve so as to drive the guide rod to reciprocate along the axial direction of the positioning sleeve;

embrace the part tightly, it includes actuating mechanism and embraces the mechanism tightly to embrace the part tightly, actuating mechanism installs on the positioning seat, embrace the mechanism tightly set up in on the positioning sleeve and with actuating mechanism connects, it has with to embrace tightly the mechanism the guide bar is embraced tightly and is fixed in latched position in the positioning sleeve with dodge out the guide bar so that the guide bar can be followed the axis direction reciprocating motion's of positioning sleeve unblock position, actuating mechanism is used for the drive embrace the mechanism tightly latched position with switch between the unblock position.

Furthermore, a mounting hole is formed in the side wall of the positioning sleeve, the axial direction of the mounting hole is perpendicular to the axial direction of the positioning sleeve, and the mounting hole is communicated with the inner space of the positioning sleeve; the clasping mechanism comprises:

the connecting piece is arranged in the mounting hole in a penetrating manner;

the locking blocks are arranged on the connecting piece in a sleeved mode at intervals in sequence, the driving mechanism is connected with the connecting piece and drives the locking blocks to move close to each other so that the guide rod is locked in the positioning sleeve in a clasping mode and is located at the locking position.

Furthermore, the number of the locking blocks is two, the two locking blocks are sleeved on the connecting piece at intervals, and an arc surface matched with the outer surface of the guide rod is arranged on one side, close to the guide rod, of the locking block.

Further, the connecting piece is the connecting rod, the connecting rod is worn to establish in the mounting hole, just the connecting rod is kept away from actuating mechanism's pot head is equipped with at least one stop nut, polylith the latch segment spacer sleeve is established in proper order on the connecting rod, the connecting rod is close to actuating mechanism's one end with actuating mechanism connects.

Further, the drive mechanism includes:

the driving cylinder is installed on the positioning seat and stretches along the direction perpendicular to the axis of the installation hole;

the first end of the hinge rod is hinged to the telescopic rod of the driving cylinder, the second end of the hinge rod is hinged to one end, away from the limiting nut, of the connecting piece, the second end of the hinge rod is provided with an arc block, and the hinged position of the second end of the hinge rod and the connecting piece deviates from the circle center of the arc block;

when the drive cylinder drives the hinge rod to rotate, the arc blocks are at least used for pushing the locking blocks to be mutually folded along the length direction of the connecting piece so as to clasp and lock the guide rod.

Furthermore, one end of the connecting piece, which is close to the hinge rod, is sleeved with a propping gasket, and the arc block props against the propping gasket.

Furthermore, be provided with the regulation clearance on the position sleeve, the regulation clearance is followed the length direction of position sleeve runs through the setting, just wear to be equipped with on the position sleeve and be used for carrying out the adjusting bolt who adjusts the width in clearance.

Further, be provided with on the lateral wall of position sleeve and dodge the groove, dodge the groove and follow the length direction of position sleeve extends, be provided with displacement detection element on the guide bar, displacement detection element follows dodge the groove and wear out in the outside of position sleeve.

Further, the guide rod is provided with a roller, the roller can be installed in the avoidance groove in a rolling mode, and the displacement detection element is arranged on the roller.

On the other hand, this application still discloses a grinding and polishing lathe, the grinding and polishing lathe includes foretell grinding and polishing device.

Compared with the prior art, the technical scheme of the application has at least the following technical effects:

because the grinding and polishing device in the application is provided with the holding component, the guide rod can be held and fixed in the positioning sleeve in the grinding and polishing process of the grinding and polishing head through the action of the holding component, the screw rod assembly bears the gravity from the grinding and polishing head and has smaller grinding and polishing force ratio in the grinding and polishing process of the grinding and polishing head, and the screw rod assembly cannot deform even after the grinding and polishing device is used for a long time, and can keep the precision in the initial state for a long time. When the drive division drive lead screw subassembly is flexible, can accurately carry out accurate control to the position of grinding and polishing dish, accuracy and the stability of the vertical position of assurance grinding and polishing head that can be fine, and then can guarantee to grind burnishing and polishing device to the grinding flatness and the grinding thickness of platelike structures such as organic glass board, can guarantee to grind the processingquality of burnishing and polishing device to organic glass board etc..

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic structural diagram of a grinding and polishing apparatus disclosed in an embodiment of the present application at a first viewing angle;

fig. 2 is a schematic structural diagram of a grinding and polishing apparatus (with a support part removed) according to an embodiment of the present disclosure in a second viewing angle;

fig. 3 is a front view of the polishing apparatus disclosed in the embodiment of the present application;

FIG. 4 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is an enlarged view of region M of FIG. 1;

FIG. 6 is an enlarged view of the region N in FIG. 2;

FIG. 7 is a perspective view of a hinge rod disclosed in an embodiment of the present application;

fig. 8 is a front view of a hinge lever disclosed in an embodiment of the present application.

Wherein the figures include the following reference numerals:

10. a positioning member; 11. positioning seats; 12. a positioning sleeve; 121. mounting holes; 122. adjusting the clearance; 123. adjusting the bolt; 124. an avoidance groove; 20. grinding and polishing the head; 21. a support portion; 22. a drive section; 23. a screw assembly; 24. a guide bar; 25. grinding and polishing the disc; 26. a reduction gearbox; 30. a clasping component; 31. a drive mechanism; 311. a driving cylinder; 312. a hinged lever; 3121. an arc block; 32. a clasping mechanism; 321. a connecting member; 322. a locking block; 3221. a cambered surface; 323. a limit nut; 324. abutting against the gasket; 40. a roller; 50. a displacement detecting element.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Referring to fig. 1 to 4, according to an embodiment of the present application, there is provided an abrasive polishing apparatus. The grinding and polishing device comprises a positioning component 10, a grinding and polishing head 20 and a holding component 30.

The positioning component 10 includes a positioning seat 11 and a positioning sleeve 12, the positioning seat 11 is installed at an end portion of a predetermined cantilever (not shown in the figure), the positioning sleeve 12 is fixedly installed on the positioning seat 11, and an axial direction of the positioning sleeve 12 is perpendicular to a surface of a workpiece (not shown in the figure) to be polished. The grinding and polishing head 20 comprises a supporting portion 21, a driving portion 22, a screw rod assembly 23, a guide rod 24 and a grinding and polishing disc 25, the guide rod 24 penetrates through the positioning sleeve 12 and can reciprocate along the axial direction of the positioning sleeve 12, the supporting portion 21 is arranged at the top end of the guide rod 24, the grinding and polishing disc 25 is fixedly connected to the bottom end of the guide rod 24, the driving portion 22 is arranged on the supporting portion 21, the screw rod assembly 23 is connected between the positioning sleeve 12 and the driving portion 22, and the driving portion 22 is used for driving the screw rod assembly 23 to stretch out and draw back along the height direction of the positioning sleeve 12 so as to drive the guide rod 24 to reciprocate along the axial direction of the positioning sleeve 12. The clasping part 30 comprises a driving mechanism 31 and a clasping mechanism 32, the driving mechanism 31 is installed on the positioning seat 11, the clasping mechanism 32 is arranged on the positioning sleeve 12 and is connected with the driving mechanism 31, the clasping mechanism 32 is provided with a locking position for clasping and fixing the guide rod 24 in the positioning sleeve 12 and an unlocking position for avoiding the guide rod 24 so as to enable the guide rod 24 to reciprocate along the axial direction of the positioning sleeve 12, and the driving mechanism 31 is used for driving the clasping mechanism 32 to switch between the locking position and the unlocking position.

In actual installation, the polishing device in this embodiment is installed at the end of the cantilever of the polishing machine through the positioning seat 11. When the grinding and polishing of the plate-shaped structures such as organic glass plates needs to be carried out, the cantilever is driven by other control mechanisms to move to a certain position, the driving part 22 is utilized to drive the screw rod assembly 23 to stretch, and further the guide rod 24 can be driven to reciprocate along the axis direction of the positioning sleeve 12, the driving part 22 drives the screw rod assembly 23 to move to a certain height, and further the driving polishing disc 25 is driven to move to a preset position, and then the driving mechanism 31 is utilized to drive the enclasping mechanism 32 to enclasping the guide rod 24 to be fixed in the positioning sleeve 12. Thereafter, utilize other mechanisms to drive plate structures such as the organic glass board that is located the grinding and polishing head 20 bottom and remove, the swing of control cantilever simultaneously drives grinding and polishing head 20 swing can grind the polishing to organic glass board etc..

Because the grinding and polishing device in this embodiment is provided with the holding component 30, the guide rod 24 can be held and fixed in the positioning sleeve 12 in the process of grinding and polishing work of the grinding and polishing head 20 through the action of the holding component 30, and in the process of grinding and polishing of the grinding and polishing head 20, the lead screw assembly 23 bears the gravity from the grinding and polishing head 20 and has a small grinding and polishing force ratio, so that the lead screw assembly 23 cannot deform even after the grinding and polishing device is used for a long time, and the lead screw assembly 23 can keep the precision in the initial state for a long time. When the driving part 22 drives the screw rod assembly 23 to stretch out and draw back, the position of the grinding and polishing disc 25 can be accurately controlled, the accuracy and the stability of the vertical position of the grinding and polishing head 20 can be well guaranteed, further, the grinding flatness and the grinding thickness of the grinding and polishing device on the organic glass plate and other plate-shaped structures can be guaranteed, and the processing quality of the grinding and polishing device on the organic glass plate and the like can be guaranteed.

Specifically, the support portion 21 in the present embodiment may be a support frame, a support plate, or the like, and when actually mounted, the support portion 21 is fixedly attached to the tip end of the guide bar 24, and the driving portion 22 is fixedly attached to the support portion 21. This drive division 22 includes driving motor, and during the in-service use, this driving motor is connected with reducing gear box 26 drive, and lead screw subassembly 23 is connected between reducing gear box 26 and position sleeve 12, and when driving motor during operation, can drive reducing gear box 26 motion, and then can drive lead screw subassembly 23 flexible to can drive guide bar 24 along the axis direction reciprocating motion of position sleeve 12, finally reach the purpose of adjusting the position of polishing dish 25.

Optionally, the screw rod assembly 23 in this embodiment includes a screw rod and a nut, wherein the nut is embedded in the positioning sleeve 12, the nut is sleeved on the screw rod, the top end of the screw rod is connected with the reduction gearbox 26, and when the reduction gearbox 26 rotates, the screw rod can be driven to stretch and retract, so as to drive the guide rod 24 to reciprocate along the axis direction of the positioning sleeve 12. During actual installation, the screw rod is positioned outside the positioning sleeve 12, so that maintenance and installation are facilitated.

When the height position of the polishing disc 25 needs to be adjusted, the driving mechanism 31 is used for driving the clasping mechanism 32 to be switched to the unlocking position, and then the driving part 22 is used for driving the screw rod assembly 23 to move so as to adjust the height of the polishing disc 25 to the preset position. Then, the driving mechanism 31 is used for driving the clasping mechanism 32 to be switched to the locking position to clasp and lock the guide rod 24 tightly, and then other mechanisms are used for driving the plate-shaped structures such as the organic glass plates and the like positioned at the bottom of the polishing head 20 to move, and meanwhile, the cantilever is controlled to swing to drive the polishing head 20 to swing, so that the organic glass plates and the like can be ground and polished.

In order to facilitate the installation of the clasping mechanism 32, the sidewall of the positioning sleeve 12 in this embodiment is provided with an installation hole 121, the axial direction of the installation hole 121 is perpendicular to the axial direction of the positioning sleeve 12, and the installation hole 121 is communicated with the inner space of the positioning sleeve 12. And the clasping mechanism 32 comprises a connector 321 and a plurality of locking blocks 322. During actual installation, the connecting piece 321 is arranged in the installation hole 121 in a penetrating manner; the locking blocks 322 are sequentially arranged on the connecting piece 321 in a spaced manner, the driving mechanism 31 is connected with the connecting piece 321 and drives the locking blocks 322 to move close to each other so as to lock the guide rod 24 in the positioning sleeve 12 in the locked position.

That is to say, when the actuating mechanism 31 drives the plurality of locking blocks 322 to draw in each other, can hold the guide rod 24 tightly, and then can lock the guide rod 24 fixedly, simple structure, reliable and stable.

Exemplarily, the number of the locking blocks 322 in this embodiment is two, the two locking blocks 322 are sleeved on the connecting member 321 at intervals, and an arc 3221 adapted to the outer surface of the guide rod 24 is disposed on one side of each locking block 322 close to the guide rod 24, so that in actual use, the locking blocks 322 are matched with the surface of the guide rod 24 through the arc 3221, thereby preventing the guide rod 24 from being worn easily, and ensuring the service life of the grinding and polishing apparatus. Of course, in other embodiments of the present application, the locking block 322 may be provided with three or more blocks, and any other modifications within the spirit of the present application are within the scope of the present application.

In other embodiments of the present application, an elastic pad and other structures may be further disposed inside the arc surface 3221, so that abrasion of the locking block 322 on the guide rod 24 can be further reduced, and the structure is more stable and reliable.

Further, the connecting member 321 in this embodiment is a connecting rod, the connecting rod is inserted into the mounting hole 121, and one end of the connecting rod away from the driving mechanism 31 is sleeved with at least one limiting nut 323, and the locking block 322 can be prevented from falling off from the connecting member 321 by the effect of the limiting nut 323. After the installation, a plurality of locking blocks 322 are sequentially arranged on the connecting rod at intervals in a sleeved mode, and one end, close to the driving mechanism 31, of the connecting rod is connected with the driving mechanism 31. When the driving mechanism 31 moves, the locking block 322 on the connecting rod can be driven to fold toward the inside of the positioning sleeve 12, so that the guide rod 24 can be locked in the positioning sleeve 12. Alternatively, the limiting nut 323 in this embodiment may be provided in one, two, or more than two. The drawings in this embodiment show a case where the number of the limit nuts 323 is two, and the lock block 322 can be effectively prevented from falling off from the connecting rod by providing two limit nuts 323.

As shown in fig. 1 to 4, 7, and 8, the driving mechanism 31 includes a driving cylinder 311 and an articulated rod 312. Wherein, the driving cylinder 311 is installed on the positioning seat 11, and the driving cylinder 311 extends and retracts along the direction perpendicular to the axis of the installation hole 121; the first end of the hinge rod 312 is hinged to the telescopic rod of the driving cylinder 311, the second end of the hinge rod 312 is hinged to the end of the connecting piece 321 away from the limit nut 323, the second end of the hinge rod 312 is provided with an arc block 3121, the hinge position of the second end of the hinge rod 312 and the connecting piece 321 deviates from the center of the arc block 3121, specifically, the distance between the hinge position of the hinge rod 312 and the connecting piece 321 deviates from the center of the arc block 3121 is D, and the size of the distance D may be designed according to the size of the locking force required by the guide rod 24, which is not specifically limited in this application. In practical use, when the driving cylinder 311 drives the hinge rod 312 to rotate, the circular arc blocks 3121 at least serve to push the plurality of locking blocks 322 to be drawn toward each other along the length direction of the connecting member 321 to lock the guide rod 24 tightly.

Specifically, when the telescopic link that drives actuating cylinder 311 stretches out, can drive the first end rotation of articulated rod 312, pulling connecting piece 321 and connecting and keeping away from the latch segment 322 that drives actuating cylinder 311 and moving towards the one side that is close to driving actuating cylinder 311 simultaneously, meanwhile, articulated rod 312 second end rotates, circular arc piece 3121 can promote on the connecting piece 321 to be close to the latch segment 322 that drives actuating cylinder 311 one side and move towards the one side that keeps away from driving actuating cylinder 311, at this moment, polylith latch segment 322 that is located on connecting piece 321 draws in each other and embraces the locking of guide bar 24 tightly, moreover, the steam generator is simple in structure, and is stable and reliable. On the contrary, when the telescopic link of driving actuating cylinder 311 withdraws, can drive the first end of articulated rod 312 and rotate, pull connecting piece 321 and connect and move towards the one side of keeping away from driving actuating cylinder 311 at the latch segment 322 of keeping away from driving actuating cylinder 311 simultaneously, and meanwhile, articulated rod 312 second end rotates, circular arc piece 3121 can move towards the direction of keeping away from latch segment 322, can free activity between the polylith latch segment 322, hold mechanism 32 and can switch to the unlocking position from the latched position, be convenient for guide bar 24 to move in position sleeve 12.

Optionally, the two ends of the hinge rod 312 in this embodiment are both provided with a Y-shaped joint, and through the function of the Y-shaped joint, the hinge rod 312, the driving cylinder 311 and the connecting member 321 are connected conveniently, so that the structure is stable and reliable.

Further, one end of the connecting rod, which is close to the hinge rod 312, is sleeved with a propping gasket 324, and the arc block 3121 props against the propping gasket 324, so that the arc block 3121 can be prevented from directly propping against the locking block 322 by the function of the propping gasket 324, and during actual design, the propping gasket 324 can be made of a material with high hardness and is not easy to wear, so that the service life and the use stability of the grinding and polishing device in the embodiment can be improved.

Referring to fig. 1 to 5, the positioning sleeve 12 in this embodiment is provided with an adjusting gap 122, the adjusting gap 122 is arranged to penetrate along the length direction of the positioning sleeve 12, and an adjusting bolt 123 for adjusting the width of the adjusting gap 122 is arranged to penetrate through the positioning sleeve 12. By providing the adjustment gap 122 on the positioning sleeve 12 and adjusting the width of the adjustment gap 122 with the adjustment bolt 123, it is more convenient to install the guide rod 24 in the positioning sleeve 12. Specifically, when the guide rod 24 needs to be installed in the positioning sleeve 12, the adjusting bolt 123 is used for widening the adjusting gap 122, so that the guide rod 24 can be more conveniently arranged in the positioning sleeve 12 in a penetrating manner. After the installation, the adjusting gap 122 is narrowed by the adjusting bolt 123, which is more convenient for the locking blocks 322 to lock the guide rods 24 tightly in the process of folding each other. During actual installation, the adjusting bolt 123 is perpendicular to the length direction of the adjusting gap 122, so that the width of the adjusting gap 122 can be conveniently adjusted. Alternatively, the adjusting bolt 123 may be provided as one, or may be provided as two or more.

Referring to fig. 1 to 6, in the present embodiment, an avoiding groove 124 is provided on a side wall of the positioning sleeve 12, the avoiding groove 124 extends along a length direction of the positioning sleeve 12, a displacement detecting element 50 is provided on the guide rod 24, and the displacement detecting element 50 penetrates from the avoiding groove 124 to the outside of the positioning sleeve 12, so that in an actual working process, the displacement of the guide rod 24 is conveniently detected through an action of the displacement detecting element 50, and the lifting height of the guide rod 24 is more conveniently controlled. Alternatively, the displacement detecting element 50 may be a proximity switch or the like.

Further, the guide bar 24 is provided with a roller 40, the roller 40 is rollably installed in the avoiding groove 124, the displacement detection element 50 is arranged on the roller 40, and the roller 40 can prevent the structure for installing the displacement detection element 50 and the avoiding groove 124 from being worn, so that the structure is stable and reliable.

From the above structure, it can be known that:

for guaranteeing long-term reliable operation of lead screw subassembly 23, this application has designed one kind and has adopted lead screw subassembly 23 to drive the vertical motion of grinding and polishing head 20, drives actuating cylinder 311 control and embraces the control mechanism that mechanism 32 held tightly, can effectively avoid the long-term stress that receives of lead screw subassembly 23, adopts to drive actuating cylinder 311 control simultaneously and embraces mechanism 32 and hold tightly the mode, and control is more convenient. This application adopts lead screw subassembly 23 to drive and grinds throwing head 20 vertical motion, adopts to drive actuating cylinder 311 control simultaneously and embraces the mode tightly of mechanism 32 for the lathe is vertical man-hour, grinds throwing head 20 vertical gravity and in the course of working and can not conduct lead screw subassembly 23 on, can guarantee the precision uniformity of lead screw subassembly 23 long-term processing.

On the other hand, the embodiment of the application also provides a grinding and polishing machine tool, which comprises the grinding and polishing device. Therefore, the grinding and polishing machine tool includes all the technical effects of the grinding and polishing device in the above embodiments, and since the technical effects of the grinding and polishing device have been described in detail in the foregoing, the details are not repeated herein.

For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; 'above" may include both orientations "at 8230; \8230;' above 8230; 'at 8230;' below 8230;" above ". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An abrasive polishing device, comprising:

the positioning device comprises a positioning component (10), wherein the positioning component (10) comprises a positioning seat (11) and a positioning sleeve (12), the positioning seat (11) is installed at the end part of a preset cantilever, the positioning sleeve (12) is fixedly installed on the positioning seat (11), and the axial direction of the positioning sleeve (12) is vertical to the surface of a workpiece to be polished;

the grinding and polishing head (20) comprises a supporting part (21), a driving part (22), a screw rod assembly (23), a guide rod (24) and a grinding and polishing disc (25), wherein the guide rod (24) penetrates through the positioning sleeve (12) and can reciprocate along the axial direction of the positioning sleeve (12), the supporting part (21) is arranged at the top end of the guide rod (24), the grinding and polishing disc (25) is fixedly connected to the bottom end of the guide rod (24), the driving part (22) is arranged on the supporting part (21), the screw rod assembly (23) is connected between the positioning sleeve (12) and the driving part (22), and the driving part (22) is used for driving the screw rod assembly (23) to stretch along the height direction of the positioning sleeve (12) so as to drive the guide rod (24) to reciprocate along the axial direction of the positioning sleeve (12);

embrace part (30) tightly, embrace part (30) tightly including actuating mechanism (31) and embrace mechanism (32), actuating mechanism (31) are installed on positioning seat (11), embrace mechanism (32) set up in on position sleeve (12) and with actuating mechanism (31) are connected, embrace mechanism (32) have with guide bar (24) are embraced tightly and are fixed in latched position in position sleeve (12) and dodge away guide bar (24) so that guide bar (24) can be followed the unlocking position of the axis direction reciprocating motion of position sleeve (12), actuating mechanism (31) are used for the drive embrace mechanism (32) tightly latched position with switch between the unlocking position.

2. The grinding and polishing device according to claim 1, characterized in that a mounting hole (121) is provided on a side wall of the positioning sleeve (12), an axial direction of the mounting hole (121) is perpendicular to an axial direction of the positioning sleeve (12), and the mounting hole (121) is provided to communicate with an inner space of the positioning sleeve (12); the clasping mechanism (32) comprises:

the connecting piece (321) penetrates through the mounting hole (121);

the locking block (322), the locking block (322) is the polylith, and the polylith locking block (322) interval cover is established in proper order on connecting piece (321), actuating mechanism (31) with connecting piece (321) are connected and drive the polylith locking block (322) draw close each other in order to with guide bar (24) lock tightly the locking in position sleeve (12) and be in the latched position.

3. The grinding and polishing device as claimed in claim 2, characterized in that the number of the locking blocks (322) is two, the two locking blocks (322) are sleeved on the connecting piece (321) at intervals, and an arc surface (3221) matched with the outer surface of the guide rod (24) is arranged on one side of the locking blocks (322) close to the guide rod (24).

4. The grinding and polishing device as claimed in claim 2, wherein the connecting member (321) is a connecting rod, the connecting rod is inserted into the mounting hole (121), and an end of the connecting rod, which is far away from the driving mechanism (31), is sleeved with at least one limiting nut (323), a plurality of locking blocks (322) are sequentially sleeved on the connecting rod at intervals, and an end of the connecting rod, which is close to the driving mechanism (31), is connected with the driving mechanism (31).

5. The grinding and polishing apparatus according to claim 4, wherein the drive mechanism (31) comprises:

the driving air cylinder (311) is installed on the positioning seat (11), and the driving air cylinder (311) stretches and retracts in the direction perpendicular to the axis of the installation hole (121);

the first end of the hinge rod (312) is hinged to the telescopic rod of the driving cylinder (311), the second end of the hinge rod (312) is hinged to one end, away from the limiting nut (323), of the connecting piece (321), the second end of the hinge rod (312) is provided with an arc block (3121), and the hinged position of the second end of the hinge rod (312) and the connecting piece (321) deviates from the circle center of the arc block (3121);

when the driving cylinder (311) drives the hinge rod (312) to rotate, the arc block (3121) is at least used for pushing the locking blocks (322) to be folded along the length direction of the connecting piece (321) so as to lock the guide rod (24) tightly.

6. The grinding and polishing device as claimed in claim 5, wherein an abutting pad (324) is sleeved on one end of the connecting piece (321) close to the hinge rod (312), and the arc block (3121) abuts against the abutting pad (324).

7. The grinding and polishing device according to any one of claims 1 to 6, characterized in that the positioning sleeve (12) is provided with an adjusting gap (122), the adjusting gap (122) is arranged to penetrate along the length direction of the positioning sleeve (12), and an adjusting bolt (123) for adjusting the width of the adjusting gap (122) is arranged to penetrate through the positioning sleeve (12).

8. The grinding and polishing device according to any one of claims 1 to 6, characterized in that an avoiding groove (124) is provided on a side wall of the positioning sleeve (12), the avoiding groove (124) extends along a length direction of the positioning sleeve (12), a displacement detecting element (50) is provided on the guide rod (24), and the displacement detecting element (50) penetrates out of the positioning sleeve (12) from the avoiding groove (124).

9. The grinding and polishing apparatus according to claim 8, characterized in that a roller (40) is provided on the guide bar (24), the roller (40) is rollably mounted in the avoiding groove (124), and the displacement detecting element (50) is provided on the roller (40).

10. A lapping machine comprising the lapping device of any one of claims 1 to 9.