KR101723136B1

KR101723136B1 - Apparatus for grinding

Info

Publication number: KR101723136B1
Application number: KR1020150081132A
Authority: KR
Inventors: 김옥현
Original assignee: 주식회사 포스코
Priority date: 2015-06-09
Filing date: 2015-06-09
Publication date: 2017-04-04
Also published as: KR20160144691A

Abstract

A body including a rotating portion on which the present polishing member is mounted; A head portion including a polishing member cleaning portion disposed on the rotating portion and a rotation driving portion coupled to the polishing member cleaning portion to rotate the polishing member cleaning portion; A specimen holder part connected to the body and the header part and ascending and descending; and a specimen holder part rotatably coupled to the body and disposed on the rotating part; The present invention provides an advantageous effect that it is possible to prevent the damage of the metal specimen due to breakage of the removal tool such as the glass rod or the risk of the work from occurring during the process of removing the remaining abrasive or foreign matter.

Description

[0001] Apparatus for grinding [0002]

The present invention relates to a polishing apparatus, and more particularly, to a polishing apparatus for performing graining or polishing of a specimen.

The pretreatment process for observing the structure of the metal material or the plating layer using an electron microscope is as follows.

First, the metal specimen to be observed is subjected to molding. Metal specimens are molded by pressing with a resin. Next, the molded specimen is fastened to the holder and grinding is performed. Grinding can be performed by mounting stepped sandpaper on the grinding disk. Thereafter, the metal specimen is polished. The polishing can be performed by attaching an abrasive member to the polishing disk and spraying the abrasive liquid and the abrasive.

Korean Patent Laid-Open Publication No. 2012-0097170 (published on September 3, 2012, hereinafter referred to as "the present document") is provided with a specimen production system for performing grinding and polishing on a metal specimen.

In this document, a configuration is described in which a polishing member is rotated to polish a specimen held on a holder. The polishing member is sprayed with the polishing liquid and the polishing compound during the fine polishing of the surface of the metal specimen.

However, when such polishing is repeated, an abrasive or foreign matter remains in the abrasive member. If an abrasive or foreign matter remains in the abrasive member, scratching of the specimen occurs during the polishing process. Further, in order to prevent this, a polishing process is performed in which the polishing member is physically removed by using a separate tool such as a glass rod while rotating the polishing member such that the polishing member or the foreign substance is removed from the polishing member.

However, such a cleaning process is disadvantageous in that the glass sheet is broken, and the scratches of the specimen are caused by the remaining fragments, and there is a great risk of harming the safety of the operator.

Korea Open Patent No. 2012-0097170 (2012.09.03. Public)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a polishing apparatus provided with a cleaning means capable of cleaning a polishing member together with grinding and polishing of a metal specimen.

The problems to be solved by the present invention are not limited to the above-mentioned problems, and other problems not mentioned here can be understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a polishing apparatus comprising: a body including a rotation unit to which an abrasive member is mounted; an abrasive member cleaning unit disposed on the rotation unit; And a specimen holder part connected to the header part including the driving part, the elevating part connecting the body and the header part, the elevating part moving up and down, and the specimen holder rotatably coupled to the rotating part.

Preferably, the abrasive article cleaning unit may be arranged to face the rotation unit.

Preferably, the apparatus further includes a control unit connected to the specimen holder unit and the elevator unit. The control unit controls the elevator unit so that the header unit is disposed on the specimen holder unit when the specimen holder unit is positioned on the rotation unit .

The controller may further include a control unit connected to the rotation unit and the rotation driving unit to control the rotation unit and the rotation driving unit such that the rotation direction of the rotation unit and the rotation direction of the polishing member cleaning unit are opposite to each other.

Preferably, the polishing member is an annular polishing disk or an annular grinding disk, and may be detachably coupled to the rotating portion.

Preferably, the abrasive member cleaner may include a base coupled to the lifting unit, a center shaft rotatably coupled to the base and connected to the rotation drive unit, and a brush coupled to the center shaft.

Preferably, the brush unit includes a brush body coupled to the central axis, and a plurality of unit brushes coupled to a lower surface of the brush body.

Preferably, the unit brush may include a guide portion forming a slide space therein, a brush shaft portion slidably disposed on the guide portion, and a cleaning brush coupled to a tip of the brush shaft portion.

Preferably, the unit brush may include an elastic member disposed in the slide space of the guide portion to provide a restoring force to the brush shaft portion.

Preferably, the abrasive article cleaning portion includes a position adjusting bar rotatably coupled to a lower surface of the brush body and engaging with the unit brush, and a plurality of virtual brushes inserted into the brush body, And a position adjusting slot formed on the lower surface of the brush body along the circumferential direction of the circle of the circle, and having a latching portion for intermittently moving the unit brush along the circumferential direction.

Preferably, the elevating portion includes a column portion coupled to the body, a motor portion coupled to the column portion, a lead screw coupled to the motor, and a lead screw threadably coupled to the lead screw, As shown in Fig.

According to an embodiment of the present invention, a header portion and a lift portion for automatically performing a cleaning operation of a polishing member in addition to the grinding and polishing of the metal specimen are provided, and during the process of removing the remaining abrasive or foreign matter, It is possible to prevent damage to the metal specimen due to breakage of the tool or risk of work.

Further, according to the embodiment of the present invention, the header portion is rotated in the direction opposite to the rotating direction of the rotating portion on which the polishing member is mounted, thereby providing a favorable effect of more effectively removing the remaining abrasive and foreign matter.

In addition, according to one embodiment of the present invention, when the grinding or polishing is performed, the specimen holder portion is positioned above the rotation portion, and when the polishing member cleaning operation is performed, the specimen holder portion and the lift portion are controlled so that the header portion is positioned above the rotation portion, It is possible to automatically perform grinding work on the abrasive member in addition to grinding or polishing in the grinding apparatus of the present invention.

1 shows a polishing apparatus according to a preferred embodiment of the present invention,
2 is a view showing a header portion and a lift portion,
3 is a view showing a brush part of the abrasive article cleaning part,
4 is a bottom view of a brush body provided with unit brushes,
5 is a view showing a position adjusting bar and a position adjusting slot formed on the bottom surface of the brush body.
6 is a view showing a lifting unit,
7 is a view showing a header portion interlocking with the elevating portion.

BRIEF DESCRIPTION OF THE DRAWINGS The objectives, specific advantages, and novel features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. The terms and words used in the present specification and claims should not be construed to be limited to ordinary or dictionary terms and the inventor should properly define the concept of the term in order to describe its own invention in the best way. The present invention should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

Hereinafter, a polishing apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a view showing a polishing apparatus according to a preferred embodiment of the present invention, and FIG. 2 is a view showing a header part and a lift part. 1 and 2 clearly illustrate only the major feature parts for the purpose of a clear understanding of the present invention and as a result various variations of the illustrations are to be expected and the scope of the invention Need not be limited.

Referring to FIG. 1, a polishing apparatus according to an embodiment of the present invention may include a body 100, a header part 200, a lift part 300, and a specimen holder part 400. The polishing apparatus can perform grinding or polishing of the metal specimen through the specimen holder unit 400 and perform the cleaning operation of the polishing member through the header unit 200 and the lift unit 300.

First, the body 100 may include a rotation unit 110. The rotation unit 100 serves to rotate the grinding disk or the polishing disk. The rotating unit 100 may be provided with driving means such as a motor such that the rotating shaft is disposed in the height direction of the body 100 (z-axis direction in FIG. 2). A grinding disk The center of the polishing disk may be formed to be aligned. When the abrasive member cleaning operation is performed, the abrasive member 1 may be mounted on the rotating portion 110. [

The upper part of the rotary part 110 may be opened so that the header part 200 or the specimen holder part 400 is disposed to be opposed to the rotary part 100. [

The body 100 may include a controller 500. The control unit 500 is connected to the header unit 200, the elevation unit 300, and the specimen holder unit 400. On the surface of the body 100, a display unit 120 and an operation unit 130 connected to the control unit 500 may be provided.

The specimen holder 400 may be disposed on one side of the rotation part 110 of the body 100 and the elevator 300 may be disposed on the other side. The header part 200 may be arranged in a state aligned with the axis of the rotation part 110. However, in the present invention, the positions of the header part 200, the elevation part 300, and the specimen holder part 400 are not limited thereto, and various modifications may be made.

The header portion 200 physically contacts the polishing member to clean the polishing member. The header part 200 may be disposed on the rotation part 110 and may be formed to move up and down in cooperation with the elevating part 300 while being supported by the elevating part 300.

The header portion 200 may include a polishing member cleaning portion 210 and a rotation driving portion 220.

The abrasive article cleaning portion 210 directly contacts the abrasive member to remove abrasive and foreign substances remaining in the abrasive member. The rotation driving unit 220 rotates the polishing member cleaning unit 210.

As an example, the abrasive article cleaning portion 210 may include a base 211, a central shaft portion 212, and a brush portion 213. The base 211 is connected to the lift part 300 and to the center shaft part 212. The base 211 is formed in a plate shape and the moving part 340 of the lifting part 300 is connected to one side end part and the center shaft part 212 is rotatably coupled to the other side end part. ) Can be combined.

The center shaft portion 212 serves to transmit the rotational force of the rotation driving portion 220 to the brush portion 213. And the center shaft portion 212 may be arranged to be aligned with the rotation axis center CL1 of the rotation portion 110. [ At this time, the base 211 may be vertically coupled to the center shaft portion 212.

The brush portion 213 is engaged with the lower end of the central shaft portion 212 to come into contact with the abrasive member 1.

FIG. 3 is a view showing the brush part of the abrasive article cleaning part, FIG. 4 is a bottom view of the brush body provided with the unit brushes, FIG. 5 is a view showing a position adjusting bar and a position adjusting slot formed on the bottom surface of the brush body FIG.

Referring to FIG. 3, the brush portion 213 may include a brush body 214 and a unit brush 215.

The brush body 214 is engaged with the central shaft portion 212 and rotates in association with the rotation of the central shaft portion 212. The plurality of unit brushes 215 are engaged with the lower surface of the brush body 214 and come into direct contact with the abrasive member 1 to remove abrasive and foreign substances remaining in the abrasive member 1. [

Each of the unit brushes 215 may be formed in a cylindrical shape. The unit brush 215 may include a guide portion 216, a brush shaft portion 217, a cleaning brush 218, and an elastic member 219.

The guide portion 216 guides the brush shaft portion 217 to move along the axial direction of the central shaft portion 212 by forming a slide space therein along the axial direction of the central shaft portion 212. The brush shaft portion 217 is inserted into the guide portion 216 and moves along the axial direction of the central shaft portion 212. The cleaning brush 218 is engaged with the tip of the brush shaft 217 and directly contacts the abrasive member (1 in Fig. 2). A plurality of cleaning brushes 218 may be provided.

The elastic member 219 is provided on the guide portion 216 to provide a restoring force such that the brush shaft portion 217 is downward. The elastic member 219 applies elastic force when the cleaning brush 218 and the polishing member 1 are in contact with each other, thereby minimizing damage to the polishing member 1 due to physical friction and enhancing the cleaning effect.

Referring to FIGS. 4 and 5, a plurality of unit brushes 215 may be formed on the bottom surface of the brush body 214. The unit brushes 215 may be arranged at regular intervals along the circumferential direction of a virtual circle with respect to the axis CL1 of the brush body 214. [ That is, the unit brushes 215 can be arranged so that the distance R from the axial center CL1 of the brush body 214 to the center C1 of the central shaft portion 217 is constant.

At this time, the distance R can be changed according to the size of the polishing member and the cleaning position.

The distance R adjustment is adjustable through the position adjustment bar 230 and the position adjustment slot 214a of FIG. The position adjusting bar 230 is rotatably disposed on the bottom surface of the brush body 214. Further, the position adjusting bar 230 is coupled to the rod 215a which is coupled to the unit brush 215. At this time, the rod 215a may be positioned at the center of the unit brush 215.

The position adjustment slot 214a may be formed along the circumferential direction of the virtual circle O with respect to the rotation center C2 of the position adjustment bar 230. [ The engaging portion 214ab may be formed in the position adjusting slot 214a so that the rod 215a of the unit brush 215 can be moved intermittently along the position adjusting slot 214a.

When the position adjusting bar 230 rotates and is located at the rightmost side (reference in FIG. 5) of the position adjusting slot 214a, the distance R representing the position of the unit brush 215 is shortened like R1 in FIG. 5 . Thus, the abrasive article cleaning portion 210 relatively cleans the center of the abrasive member 1. [ In contrast, when the position adjusting bar 230 rotates and is positioned at the leftmost (reference in FIG. 5) of the position adjusting slot 214a, the distance R, which is the position of the unit brush 215, Loses. Thus, the abrasive article cleaning portion 210 relatively cleans the outside of the abrasive member 1. [

The operator can adjust the position of the position control bar 230 to adjust the cleaning area of the abrasive member 1. [

The rotation driving unit 220 is coupled to the base 211 to rotate the center shaft portion 212. The rotation driving unit 220 may include driving means such as a motor. When the rotation driving unit 220 rotates, the central axis portion 212 rotates. When the central shaft portion 212 rotates, the brush body 214 rotates and the cleaning brushes 218 contacting the abrasive member 1 are rotated in association with the rotation of the unit brushes 215 to remain on the abrasive member 1 Remove abrasive or foreign matter.

6 is a view showing the elevating portion, and Fig. 7 is a view showing a header portion interlocking with the elevating portion.

The elevation part 300 can adjust the height of the header part 200. The header part 200 can be fixedly arranged on the rotary part 110 so that when the specimen holder part 400 is aligned with the rotary part 110 for grinding or polishing, It is necessary to arrange it on the portion 400 of FIG. When the grinding or polishing is performed, the lifting unit 300 can move the header unit 200 up and place it on the specimen holder unit 400.

6, the elevating part 300 may include a column part 310, a motor part 320, a lead screw 330, and a moving part 340. The pillars 310 may be vertically coupled to the body 100. The motor portion 320 may be disposed at the upper end of the column portion 310. The lead screw 330 can engage with the rotation axis of the motor unit 320. The lead screw 330 may be vertically coupled to the body 100 in the height direction (z-axis direction).

The moving part 340 is screwed to the lead screw 330 and moves up and down in conjunction with the rotation of the lead screw 330. The base portion 211 of the header portion 200 is coupled to the moving portion 340.

7, when the motor unit 320 is operated, the lead screw 330 rotates, and as the lead screw 330 rotates, the moving unit 340 moves up and down along the lead screw 330 do. The height of the header part 200 is adjusted by moving the header part 200 connected to the moving part 340 by moving the moving part 340 up and down.

6 and 7, the control unit 500 may be connected to the rotation unit 110, the rotation drive unit 220, and the motor unit 320. FIG. The control unit 500 may control the rotation unit 110 and the rotation drive unit 220 such that the rotation direction of the rotation unit 110 and the rotation direction of the rotation drive unit 220 are opposite to each other.

The control unit 500 controls the rotation of the specimen holder 400 so that the specimen holder 400 is disposed on the rotation unit 110 during the grinding or polishing and moves the header unit 200 upward, And the alignment of the specimen holder part 400 is assisted.

During the abrasive member cleaning operation, the control unit 500 operates the motor unit 320 to move the header unit 200 downward, thereby bringing the abrasive member into contact with the abrasive member provided on the rotation unit 110, And rotates the portion 210.

Thus, in the polishing apparatus according to the preferred embodiment of the present invention, in addition to grinding and polishing of the metal specimen, the cleaning operation for the polishing member can be automatically performed.

As described above, the polishing apparatus according to one preferred embodiment of the present invention has been specifically described with reference to the accompanying drawings.

It is to be understood that one embodiment of the invention described above is to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description. It is intended that all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

100: Body
110:
120:
130:
200: header portion
210: abrasive member cleaning unit
211: Base
212:
213: Brush part
214: Brush body
214a: Positioning slot
215: Unit Brush
216: guide portion
217: Brush Shaft
218: Cleaning brush
219: Elastic member
220:
230: Positioning bar
300:
310:
320:
330: Lead screw part
340:
400: specimen holder part

Claims

A body including a rotating part on which the polishing member is mounted;
A head portion including a polishing member cleaning portion disposed on the rotating portion and a rotation driving portion coupled to the polishing member cleaning portion to rotate the polishing member cleaning portion;
An ascending / descending portion connecting the body and the header portion and ascending / descending:
And a specimen holder part rotatably coupled to the body and disposed on the rotating part,
The polishing member cleaner includes a base coupled to the elevation portion, a center shaft portion rotatably coupled to the base and connected to the rotation drive portion, and a brush portion coupled to the center shaft, And a plurality of unit brushes coupled to a lower surface of the brush body,
Wherein the unit brush includes a guide portion for forming a slide space therein, a brush shaft portion slidably disposed on the guide portion, and a cleaning brush coupled to a front end of the brush shaft portion, A position adjustment bar that is rotatably coupled to a lower surface of the brush body and is coupled to the unit brush, a position adjustment bar that is inserted into the brush body and formed on a lower surface of the brush body along a circumferential direction of a virtual circle, And a position adjusting slot in which the engaging part is formed to allow the unit brush to move intermittently along the circumferential direction.

The method according to claim 1,
And the polishing member cleaner is disposed opposite to the rotating portion.

The method according to claim 1,
Further comprising a control unit connected to the specimen holder unit and the elevation unit, wherein the control unit controls the elevation unit such that the header unit is disposed on the specimen holder unit when the specimen holder unit is positioned on the rotation unit.

The method according to claim 1,
And a control unit coupled to the rotation unit and the rotation driving unit to control the rotation unit and the rotation driving unit such that the rotation direction of the rotation unit and the rotation direction of the polishing member cleaning unit are opposite to each other.

The method according to claim 1,
Wherein the polishing member is an annular polishing disk or an annular grinding disk, and is detachably coupled to the rotating portion.

delete

The method according to claim 1,
Wherein the unit brush includes an elastic member that is disposed in a slide space of the guide portion and provides a restoring force to the brush shaft portion.

delete

The method according to claim 1,
The elevating portion
A pillar coupled to the body;
A motor unit coupled to the column portion;
A lead screw coupled to the motor;
And a moving part which is screwed to the lead screw and is engaged with the header part and slidably engaged with the column part,
.