CN112775832A

CN112775832A - PVA polishing sheet

Info

Publication number: CN112775832A
Application number: CN201911084293.5A
Authority: CN
Inventors: 王辉
Original assignee: Hubei Moxi High Tech Materials Co ltd
Current assignee: Hubei Moxi High Tech Materials Co ltd
Priority date: 2019-11-07
Filing date: 2019-11-07
Publication date: 2021-05-11

Abstract

The invention discloses a PVA polishing sheet, which comprises a supporting seat and a supporting clamp frame, wherein a transmission cavity 9 (not marked in the figure) is formed in a bottom frame body of the supporting clamp frame, a movable supporting block is arranged in the transmission cavity 9 (not marked in the figure), the top end of the movable supporting block is connected with a transmission screw rod through a bearing seat, the left side wall and the right side wall of the bottom of a guide sliding block are respectively provided with a clamping groove towards the inner side, a clamping column is arranged in a horizontal state, one end of the clamping column is correspondingly inserted into the clamping groove, the other end of the clamping column penetrates out of the supporting clamp frame and then is correspondingly inserted into an inserting groove formed in the supporting seat, the wall surfaces of the upper side column and the lower side column of the clamping column are respectively and fixedly connected with a synchronous pressing plate. The PVA polishing sheet can be detached and replaced only by operating the handle, and the use efficiency and the use effect are very convenient.

Description

PVA polishing sheet

Technical Field

The invention relates to the technical field related to PVA mounting structures, in particular to a PVA polishing sheet.

Background

Referring to fig. 1, reference numeral 1 indicates a schematic diagram of a PVA polishing sheet in a driven rotation state of the prior art, the structure in the figure comprises a polishing sheet body 3, a supporting seat 4, a clamping head 5 and a servo motor 6, wherein the clamping head 5 is directly driven by the servo motor 6 to rotate, the polishing sheet body 3 is fixed on the supporting seat 4, the clamping head 5 is fixed with the supporting seat 4 in a welding way, although such PVA polishing sheets can be rotated at high speed, they have a great disadvantage in that they are integrally formed and non-detachable, when the polishing sheet body 3 is abraded and damaged due to long-time work, the polishing sheet body cannot be detached and replaced, and the use efficiency and the use effect are very inconvenient.

Disclosure of Invention

The present invention has been made to solve the above problems occurring in the prior art, and an object of the present invention is to provide a PVA polished sheet.

To achieve the above object, the present invention provides the technical solutions as set forth in claims 1 to 3:

a PVA polishing sheet comprises a supporting seat and a supporting clamp frame, wherein a transmission cavity 9 (not marked in the figure) is formed in a bottom frame body of the supporting clamp frame, a movable supporting block is arranged in the transmission cavity 9 (not marked in the figure), the top end of the movable supporting block is connected with a transmission screw rod through a bearing seat, the transmission screw rod is in through fit with the supporting clamp frame in a threaded fit mode, a handle is arranged at the end part of a rod body of the transmission screw rod, a guide sliding block is fixed on each of the left side wall and the right side wall of the top of the movable supporting block, the guide sliding blocks are correspondingly limited in guide tracks, a clamping groove is formed in each of the left side wall and the right side wall of the bottom of each guide sliding block inwards, the section of each clamping groove is in a right trapezoid shape, a plane abutting edge and an inclined abutting edge are formed in the section of each clamping groove, a locking column is arranged in a horizontal state, one end of the locking column is, the upper side and the lower side of the clamping column are respectively and correspondingly fixedly connected with a synchronous pressing plate, and the synchronous pressing plates are connected with the supporting clamping frame through a buffering pressure spring.

As a further scheme of the invention: the device also comprises a polishing sheet body (3) and a servo motor.

As a still further scheme of the invention: the polishing sheet body is fixed on the supporting seat, and the supporting clamp frame 4 is directly driven to rotate by the servo motor.

Compared with the prior art, the invention has the beneficial effects that: through the integrative undetachable structure of PVA polished section among the prior art change the form of conveniently dismantling the change into, in case polished section when taking place wearing and tearing to damage because of long-time work, only need the whole supporting seat of operating handle can become the active state by fixed state, directly will polish the section body take off the back change can, with this realization to the dismantlement change purpose of PVA polished section, no matter be availability factor or result of use all become very convenient, safety and reliability satisfy higher in-service use demand.

Drawings

FIG. 1 is a schematic view of a PVA polishing sheet in a driven rotation state in the prior art.

FIG. 2 is a schematic view of the structure of the PVA polished wafer in a driving rotation state after modification.

FIG. 3 is a schematic diagram of a movable support block in a PVA polishing sheet in a modified driving rotation state.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, reference numeral 1 indicates a PVA polishing sheet in a driving rotation state in the prior art, and the structure in the drawing includes a polishing sheet body 3, a support seat 4, a chuck 5 and a servo motor 6, the chuck 5 is directly driven by the servo motor 6 to rotate, the polishing sheet body 3 is fixed on the support seat 4, and the chuck 5 is fixed with the support seat 4 in a welding manner, although the PVA polishing sheet can rotate at a high speed, the PVA polishing sheet has a great defect that the PVA polishing sheet can not be disassembled and replaced due to the adoption of an integral non-detachable manner, when the polishing sheet body 3 is worn and damaged due to long-time work, the PVA polishing sheet can not be disassembled and replaced, and the PVA polishing sheet is inconvenient in use efficiency and use effect.

Referring to fig. 2-3, reference numeral 2 indicates an improved PVA polishing pad in a driving rotation state, the structure in the drawing still includes a polishing pad body 3, a supporting seat 4, a supporting clip frame 7 and a servo motor 6, the polishing pad body 3 is fixed on the supporting seat 4, except that a clip head 5 is improved into the supporting clip frame 7, the supporting clip frame (4) is directly driven by the servo motor 6 to rotate, the supporting clip frame 7 and the supporting seat 4 are detachably installed in a matching manner, a transmission cavity 9 (not labeled in the drawing) is formed in a bottom frame body of the supporting clip frame 7, a movable supporting block 9 is configured in the transmission cavity 9 (not labeled in the drawing), the top end of the movable supporting block 9 is connected with a transmission screw 11 through a bearing seat 10, the transmission screw 11 is in a threaded matching manner and penetrates through the supporting clip frame 7, and the end of the rod body has a handle 12, the left side wall and the right side wall of the top of the movable supporting block 9 are respectively fixed with a guide sliding block 14, the guide sliding blocks 14 are correspondingly limited in the guide tracks 13, the left side wall and the right side wall of the bottom of the guide sliding block 14 are respectively provided with a clamping groove 901 inwards, the cross section of the clamping groove 901 is in a right trapezoid shape and is provided with a plane abutting-buckling edge 902 and an inclined abutting-buckling edge 903 in cross section, the locking column 8 is arranged in a horizontal state, one end of the locking column is correspondingly inserted into the clamping groove 901, the other end of the locking column 8 penetrates out of the supporting clamp frame 7 and is correspondingly inserted into the insertion groove 401 formed in the supporting seat 4, the wall surfaces of the upper side column and the lower side column of the locking column 8 are respectively and correspondingly fixedly connected with a synchronous pressing plate 16, and the synchronous pressing.

By changing the integral non-detachable structure of the PVA polishing sheet in the prior art into a form convenient to detach and replace, the PVA polishing sheet is provided with a movable supporting block 9, a bearing seat 10, a transmission screw rod 11, a handle 12, a guide rail 13, a guide slider 14, a clamping groove 901, a clamping column 8, a synchronous pressing plate 16, a buffer pressing spring 17 and an inserting groove 401, once the polishing sheet is abraded and damaged due to long-time work, the transmission screw rod 11 is driven to rotate reversely by operating the handle 12, the movable supporting block 9 moves upwards, the movement stability of the movable supporting block 9 is ensured by the cooperation of the guide rail 13 and the guide slider 14, the clamping column 8 originally extruded on the inclined abutting edge 903 slides downwards until the end part of the inner side end of the clamping column 8 is correspondingly buckled on the plane abutting edge 902, the buffer pressing spring 17 in a compressed state resets, the synchronous pressing plate 16 moves inwards under the action, thereby the tip of the card post 8 of the left and right sides breaks away from out from inserting groove 401 with the trend, and whole supporting seat 4 becomes the active state by fixed state, directly with polishing piece body 3 take off after change can to this realizes the dismantlement change purpose to PVA polishing piece, no matter is availability factor or result of use all become very convenient, safe and reliable satisfies higher in-service use demand.

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 various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. A PVA polishing sheet comprises a supporting seat (4) and a supporting clamp frame (7), and is characterized in that a transmission cavity 9 (not marked in the figure) is formed in a bottom frame body of the supporting clamp frame (7), a movable supporting block (9) is configured in the transmission cavity 9 (not marked in the figure), the top end of the movable supporting block (9) is connected with a transmission screw (11) through a bearing seat (10), the transmission screw (11) is in penetrating fit with the supporting clamp frame (7) in a thread fit mode, a handle (12) is arranged at the end part of a rod body of the transmission screw, a guide sliding block (14) is respectively fixed on the left side wall and the right side wall of the top of the movable supporting block (9), the guide sliding block (14) is correspondingly limited in a guide track (13), a clamping groove (901) is respectively formed on the left side wall and the right side wall of the bottom of the guide sliding block (14) inwards, the section of the clamping groove (901) is in a right trapezoid shape, and a plane abutting- 903) The lock cylinder (8) is arranged in a horizontal state, one end of the lock cylinder is correspondingly inserted into the clamping groove (901), the other end of the clamping cylinder (8) penetrates out of the supporting clamping frame (7) and then is correspondingly inserted into the insertion groove (401) formed in the supporting seat (4), the wall surfaces of the upper side column and the lower side column of the clamping cylinder (8) are respectively and correspondingly fixedly connected with a synchronous pressing plate (16), and the synchronous pressing plates (16) are connected with the supporting clamping frame (7) through buffer pressing springs (17).

2. A PVA polishing pad according to claim 1, characterized in that the apparatus further comprises a polishing pad body (3) and a servo motor (6).

3. A PVA polished rod as defined in claim 3 wherein the polished rod body (3) is fixed on a support (4) and the support holder (4) is directly rotated by a servo motor (6).