KR20150142511A - Curved glass surface polishing device - Google Patents

Curved glass surface polishing device Download PDF

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Publication number
KR20150142511A
KR20150142511A KR1020140071569A KR20140071569A KR20150142511A KR 20150142511 A KR20150142511 A KR 20150142511A KR 1020140071569 A KR1020140071569 A KR 1020140071569A KR 20140071569 A KR20140071569 A KR 20140071569A KR 20150142511 A KR20150142511 A KR 20150142511A
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KR
South Korea
Prior art keywords
polishing
glass
curved glass
curved
jig
Prior art date
Application number
KR1020140071569A
Other languages
Korean (ko)
Inventor
성진노
전장호
김학찬
Original Assignee
나노텍 주식회사
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Application filed by 나노텍 주식회사 filed Critical 나노텍 주식회사
Priority to KR1020140071569A priority Critical patent/KR20150142511A/en
Publication of KR20150142511A publication Critical patent/KR20150142511A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
    • B24B7/22—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
    • B24B7/24—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain for grinding or polishing glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
    • B24B9/10—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of plate glass

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Surface Treatment Of Glass (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

The present invention relates to a curved surface polishing apparatus, which comprises a main body (1) provided with a guide bar (101) and a support base (102); A jig 2 composed of a moving body 201 sliding along the guide bar 101 and a jig means 206 installed on the moving body 201 to fix the curved glass; A rotating shaft 304 supported by a bearing provided on a bearing case 302 of a mounting plate 301 provided on the support table 102 and detachably attached to the polishing pad 306; And a polishing unit (3) composed of rotating means for rotating the rotating shaft (304), thereby reducing the installation cost of a device for polishing a curved glass, because the manufacturing cost is low with a simple structure And the productivity is greatly improved by effectively polishing a large amount of curved glass in a short time.

Description

[0001] Curved glass surface polishing device [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a curved glass surface polishing apparatus, and more particularly, to a curved glass surface polishing apparatus capable of improving the productivity and quality of a curved glass by effectively polishing the surface of curved glass having curvature in a short time.

Glass (琉璃) is an object of high transparency which is obtained by melting silica, sodium carbonate, calcium carbonate, etc. and then cooling it. In the past, silicate glass mainly composed of silicic acid has been a typical example. Currently, however, an oxide such as borate glass, phosphate glass Glass is representative.

Such a glass is used for a wide variety of purposes, such as a glass plate, a bottle glass, a mirror glass, a glass tableware, etc., and is also used for imitation jewelry, base glass for photo filter, optical glass and glass for glasses. It is used as a material for high-grade tableware and the like.

On the other hand, the use of reinforced glass reinforced by heating the molded plate glass at 500 to 600 ° C, which is close to the softening temperature, compressively deforming the glass surface portion by using the compressed cooling air or chemical method, .

Tempered glass has 3 to 5 times higher bending strength than normal glass, 3 to 8 times higher impact resistance, and superior heat resistance. However, since the glass itself maintains the balance of force in the inside, even if one side is cut a little, the whole is destroyed by the pieces of red bean size. Therefore, it is necessary to make the shape suitable for the purpose before reinforcing treatment. Recently, it is widely used as display glass for mobile devices and the like.

Recently, IT (Information Technology) industry has greatly developed, and the development and consumption of high-end products such as tablet PC, smart phone, smart pad and smart watch have increased greatly. In recent years, as the IT technology has been greatly developed, when the user touches the display while looking at the display, the position of the acrylic resin is inputted to the computer and the command is executed. It has become common to use a tempered glass on the surface of a display in order to prevent the touch panel display from being damaged due to frequent touches of the screen and enhance the durability due to generalization of a touch panel display which is a type of interactive graphic input device to be.

The manufacturing process of the tempered glass used for the touch panel display is briefly described as follows: (1) cutting the hardened glass plate into a window glass shape of the product size, (2) machining holes as many as necessary for the cut glass window, (3) chamfering the edge of the window glass and the edge of the hole, (4) polishing the both sides of the window glass, and (5) washing and drying the finished window glass. In the case of cutting with window glass, there is a disadvantage that the side reinforcement does not work and it breaks well. In recent years, disc glass has been cut first in accordance with the finished product size, and then the product is manufactured by a post process.

On the other hand, as described above, the reason for polishing the both surfaces of the window glass in the process of manufacturing the tempered glass used for the touch panel display is that the precision of the surface of the window glass formed by cutting the reinforced glass plate is lowered This is because when the window glass having such a low surface precision is used for the touch panel display, a malfunction occurs in the touch operation or the precision of the operation deteriorates.

Therefore, in the case of tempered glass used for the touch panel display, since it is necessary to polish the surface precisely in order to increase the surface precision, CNC (Computer Numerically Controlled Machine Tool) The surface is generally polished by a polishing process.

Patent Registration No. 10-0584053 Japanese Patent Application Laid-Open No. 10-2006-0016941

As described above, in order to polish the both surfaces of the tempered glass, which is mainly used in the touch panel display, CNC has been used in the related art. However, since CNC costs tens of millions of won per unit, In addition, in the case of a CNC, since a window glass cut to a finished product size is fixed to a jig and then the surface is polished, a large amount of window glass can not be polished at a time. Therefore, in order to polish a large amount of window glass, There is a problem in that a large amount of facility investment costs are required.

In recent years, the use of curved glass having a non-flat curved surface has been increasingly used in tempered glass used for displays. In the case of curved glass, a curved surface has a curved surface, and a polishing pad is attached to a CNC head having one axis, To polish the surface of the glass, rotate the jig holding the curved glass, or rotate the CNC shaft with the B axis unit (tilting unit) to polish the curved glass in the four axis (X, Y, Z, In order to accomplish this, there is a problem in that the polishing speed is delayed due to a lot of movement of the head or jig, and productivity is significantly lowered. In addition, since the polishing of the curved glass surface is not continuously performed, There is a problem in that the quality of the image is deteriorated.

Therefore, it is inevitable to develop a curved surface polishing apparatus capable of achieving high productivity while achieving high quality polishing.

The present invention relates to a curved surface grinding apparatus for polishing a surface of a curved glass surface, which comprises a main body 1 having a guide bar 101 and a support 102 on an upper portion thereof; A movable body 201 which is provided with a guide block 202 to be engaged with the guide bar 101 to slide by the moving means and a jig means 206 which is provided on the moving body 201 and fixes the curved glass, A jig part (2) provided on the base part A mounting plate 301 mounted on the supporting table 102 and a bearing provided on a bearing case 302 provided on the mounting plate 301 and supported at a lower end thereof with a rotary shaft 304 for detachably mounting the polishing pad 306 A lifting means 307 mounted on the mounting plate 301 for lifting and lowering the rotating shaft 304 and rotating means installed on the front surface of the mounting plate 301 for rotating the rotating shaft 304 The polishing unit 3 can be used to polish a large amount of curved glass at the same time while having a simple structure.

As described above, the curved surface polishing apparatus of the present invention is simple in structure, easy to manufacture, cost-effective because of its low manufacturing cost, and can polish a large number of curved glass surfaces simultaneously and efficiently, The productivity and quality of the curved glass can be greatly improved.

1 is a front view according to an embodiment of the curved surface polishing apparatus of the present invention
Fig. 2 is a side view of the jig mounting state according to the embodiment of the curved glass surface polishing apparatus of the present invention
3 is a plan view according to an embodiment of the curved glass surface polishing apparatus of the present invention
4 is a partial cross-sectional view of the polishing portion according to the embodiment of the curved glass surface polishing apparatus of the present invention
5 is a sectional view of a state in which the inner surface of the curved glass is polished according to the embodiment of the curved glass surface polishing apparatus of the present invention
6 is a cross-sectional view of a state in which the outer surface of a curved glass is polished according to an embodiment of the curved glass surface polishing apparatus of the present invention
7 is a perspective view showing a curved glass on which polishing is performed by the curved surface polishing apparatus of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the construction and operation of a curved surface polishing apparatus according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

A curved surface grinding apparatus according to an embodiment of the present invention includes a main body 1, a jig 2 slidably mounted on the main body 1 for fixing a curved glass, And a polishing section 3 for polishing a curved glass fixed to the jig section 2. [

A pair of guide bars 101 are provided in parallel on the upper surface of the main body 1 along the longitudinal direction of the main body 1 so as to be slidable along the guide bars 101, And a supporting table 102 for supporting the polishing section 3 for polishing the curved glass fixed by the jig section 2 is provided on the side surface of the guide bar 101.

It is preferable that the guide bar 101 is provided with a guide bar 101 suitable for a precision machine like a general LM guide.

The support base 102 includes a base frame 1021 fixed to the upper portion of the main body 1 and a support frame 1022 coupled to the base frame 1010. The base frame 1021 has a long hole 1021a formed therein, (1) It is possible to adjust the position in the process of installing with fastening bolts on the top.

The jig part 2, which is slidably installed in the main body 1 and fixes a curved glass and is capable of being polished, is provided with a guide block 202, which is engaged with the guide bar 101 of the main body 1, And a jig means (206) provided on the moving body (201) for fixing the curved glass.

The moving means includes a ball screw shaft 204 that is rotated by a servomotor 203 capable of rotating forward and backwardly installed on one side of the main body 1 and a ball screw shaft 204 provided on a bottom surface of the moving body 201, And a sliding block 205 that slides by the rotation of the ball screw shaft 204. The front and rear sliding operation of the moving body 201 is performed by forward and reverse rotation of the servo motor 203. [

The jig means 206 is formed with a seating surface 206a having a curvature equal to the curvature of the surface of the curved glass so as to firmly fix the curved glass and the lower surface of the seating surface 206a is provided with a vacuum pump A plurality of vacuum inlets 206b are formed for evacuating and vacuuming the curved glass that is placed on the seating surface 206a by generating a vacuum.

A servomotor 206c for rotating the jig means 206 is provided on the moving body 201 and the curved glass is vacuum-sucked and fixed on the seating surface 206a of the jig means 206 The jig means 206 can be rotated by the servo motor 206c and the jig means 206 is elongated along the longitudinal direction of the main body 1 to seat a plurality of curved glass on the seating surface 206a Can be fixed.

A polishing part 3 for polishing a curved glass fixed by the jig part 2 is provided on a supporting table 102 provided on the upper part of the main body 1. The polishing part 3 is mounted on the supporting table 102 A rotary shaft 304 supported by bearings provided on a bearing case 302 provided on the mounting plate 301 and having a polishing pad 306 detachably attached to a lower end thereof; A lifting means 307 installed on the upper surface of the mounting plate 301 for lifting and lowering the rotating shaft 304 and a rotating means installed on the front surface of the mounting plate 301 to rotate the rotating shaft 304.

The mounting plate 301 is attached to the supporting frame 1022 of the supporting frame 102. The mounting frame 301 is mounted on the supporting frame 1022 in order to mount the supporting frame 102 more firmly, And the position of the upper part of the main body 1 can be adjusted by the base frame 1021 constituting the support base 102.

The rotary shaft 304 is supported by a bearing installed in at least two bearing cases 302 provided on the front surface of the mounting plate 301 with a built-in bearing so that the rotary shaft 304 can be precisely rotated. A polishing pad 306 is detachably attached (Not shown).

It is preferable that the polishing pad 306 coupled to the disk 305 be a glass-dedicated polishing pad 306 having a long lifetime and a high polishing power such as a cerium pad, do. The polishing pad 306 is rotated at a high speed by the rotating shaft 304 to contact the curved glass to polish the surface of the curved glass. The size of the polishing pad 306 is adjusted according to the size and shape of the curved glass, It is possible to supply the polishing liquid to the surface of the curved glass by using a separate feeding means in the course of polishing the curved glass by the polishing pad 306. [

The elevating means 307 includes a cylinder 307a installed on the supporting plate 102 of the mounting plate 301; An upper portion coupled to a lower end of the rod 307b of the cylinder 307a and a lower portion coupled to an upper end of the rotary shaft 304 so that the rotary shaft 304 can idle; And an elevation guide bar 307d which passes through the mounting plate 301 and whose lower end portion is screwed on the upper surface of the elevating member 307c to limit an elevating range of the elevating member 307c.

The lower end of the ascending / descending member 307c is provided with a bearing to which the upper end of the rotating shaft 304 is coupled to ensure smooth rotation of the rotating shaft 304 even if the ascending / descending member 307c ascends or descends by the cylinder 307a, The height of the lifting guide bar 307d is limited by adjusting the position of the nut screwed to the upper end of the lifting guide bar 307d passing through the protrusion projected forward from the front surface of the lifting guide bar 307d, It is possible to limit the range of the ascending / descending of the ascending / descending member 307c to which the lower end portion of the ascending / descending member 307c is screwed.

The rotating means includes a rotary motor 308 mounted on a front surface of a mounting plate 301 fixed to the support 102 and a bearing case 302 supporting a driving shaft of the rotary motor 308 and the rotary shaft 304, The belt pulleys 303 and 308a are installed on the upper part of the bearing case 302 and the belt pulleys 303 and 308a provided on the bearing case 302 and the rotary shaft 304 are key- 303 and 308a, the rotary shaft 308 rotates the rotary shaft 304 at a high speed.

The operation of the curved surface polishing apparatus to which the present invention is applied will now be described with reference to the accompanying drawings.

FIG. 5 is a cross-sectional view of a curved glass surface polishing apparatus according to an embodiment of the present invention, in which the outer surface of a curved glass A is polished, and FIG. 6 is a view showing an embodiment of a curved glass surface polishing apparatus In order to polish the surface of the curved glass A as shown in the figure, the curved glass is first placed on the jig means 206 of the jig 2 , The seating surface 206a having the same curvature as the surface curvature formed in the curved glass A is formed at the upper end of the jig means 206, so that the stable seating of the curved glass A is achieved.

When the curved glass A is seated on the seating surface 206a of the jig means 206 as described above, a vacuum is generated by using a vacuum pump (not shown) so as to communicate between the seating surface 206a and the vacuum pump, Vacuum suction of the curved glass A seated on the seating surface 206a formed with one end of the vacuum suction port 206b is performed by evacuating the inside of the vacuum suction port 206b formed in the vacuum suction port 206.

Since the jig 2 is provided on the bottom surface of the guide block 202 and is movable in the longitudinal direction of the main body 1 by the moving means, A plurality of jig means 206 may be provided on the part 2 or a jig means 206 may be formed long along the longitudinal direction of the main body 1 so that a plurality of curved surfaces 206a are formed on the seating surface 206a above the jig means 206, It is possible to simultaneously mount the glass (A).

When the curved glass A is fixed to the jig portion 2 as described above, the polishing portion 3 polishes the surface of the curved glass A. The polishing pad 306 is provided on the disk 305 provided at the lower end of the rotating shaft 304 rotated by the rotating means so that the polishing pad 306 rotates at a high speed while the curved glass A And the surface of the curved glass is polished.

At this time, elevating means 307 for moving the rotary shaft 304 in the Y-axis direction is provided at the upper end of the rotary shaft 304. When the surface of the curved glass is polished by the polishing pad 306, The rotary shaft 304 is lowered to be pressed at a constant pressure so as to be brought into close contact with the glass at a constant pressure.

Therefore, when a certain pressure is applied to the polishing pad 306 by the elevating means 307, the lower end of the polishing pad 306, which is in close contact with the surface of the curved glass A, is pressed along the curvature of the curved glass, And the curved portion are polished at the same time to smoothly perform polishing without the boundary between the flat portion and the curved portion. In addition, productivity is improved by shortening the polishing time, and the polishing pad 306 is brought into close contact with the surface of the curved glass By maintaining the pressure constant, uniform polishing performance can be maintained regardless of the use period of the polishing pad 306.

When the length of the curved glass is longer than the diameter of the polishing pad 306 in the process of polishing the curved glass A by the polishing pad 306 as described above, the jig 2 for fixing the curved glass is moved in one direction It is possible to uniformly polish the entire surface of the curved glass having a large size.

Since the jig means 206 fixing the curved glass A having a curvature can be rotated forward and backward by the servomotor 206c provided on the moving body 201, In a process of being closely attached to the surface of the curved glass (A) and polishing, the jig means (206) holding the curved glass (A) is rotated so that the curved glass (A) Since the polishing is possible, the polishing quality is greatly improved.

The curved surface polishing apparatus of the present invention as described above can be used not only for surface polishing of flat and curved surfaces of tempered glass or ordinary glass of various displays used in smart phones, tablet PCs, smart clocks, smart glasses, It can be used to polish glass surfaces used in various products such as telescopes and camera lenses.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the invention as defined by the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

1: main body 101: guide bar
102: Support 2: Jig
201: mobile body 202: guide block
203: Servo motor 204: Ball screw shaft
205: sliding block 206: jig means
206a: Seat face 206b: Vacuum inlet
3: Polishing section 301: Mounting plate
302: Bearing case 303: Belt pulley
304: rotating shaft 305: disk
306: polishing pad 307: elevating means
307a: cylinder 307b: rod
307c: an ascending / descending member 307d:
308: Rotary motor 308a: Belt pulley

Claims (2)

A main body 1 provided with a guide bar 101 and a support 102 on its upper portion;
A movable body 201 which is provided with a guide block 202 to be engaged with the guide bar 101 to slide by the moving means and a jig means 206 which is provided on the moving body 201 and fixes the curved glass, A jig part (2) provided on the base part
A mounting plate 301 mounted on the supporting table 102 and a bearing provided on a bearing case 302 provided on the mounting plate 301 and supported at a lower end thereof with a rotary shaft 304 for detachably mounting the polishing pad 306 A lifting means 307 mounted on the mounting plate 301 for lifting and lowering the rotating shaft 304 and rotating means installed on the front surface of the mounting plate 301 for rotating the rotating shaft 304 And a polishing unit (3) for polishing the surface of the curved glass surface.
The method according to claim 1,
The elevating means 307 includes a cylinder 307a mounted on the support 102;
An upper portion coupled to a lower end of the rod 307b of the cylinder 307a and a lower portion coupled to an upper end of the rotary shaft 304 so that the rotary shaft 304 can idle;
And an elevation guide bar 307d which passes through the mounting plate 301 and whose lower end portion is screwed on the upper surface of the elevating member 307c to limit an elevating range of the elevating member 307c A surface polishing apparatus for polishing a surface of a curved glass.
KR1020140071569A 2014-06-12 2014-06-12 Curved glass surface polishing device KR20150142511A (en)

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Application Number Priority Date Filing Date Title
KR1020140071569A KR20150142511A (en) 2014-06-12 2014-06-12 Curved glass surface polishing device

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101686235B1 (en) * 2016-05-27 2016-12-15 (주) 아이시스 the method of manufacturing window glass for smart phone and polishing machine for manufacture window glass for smart phone
CN106625242A (en) * 2017-02-22 2017-05-10 浙江理工大学 Grinding head feeding device and glass bevel edge grinding device
CN106625105A (en) * 2017-02-22 2017-05-10 浙江理工大学 Glass rotating device and glass bevel edge grinding device
CN106695492A (en) * 2017-02-22 2017-05-24 浙江理工大学 Grinding head rotary device and glass bevel edge grinding device
CN110561215A (en) * 2019-09-12 2019-12-13 湖北大冶汉龙汽车有限公司 compressor welding mark brushing machine and use method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060016941A (en) 2004-08-19 2006-02-23 주식회사 신안에스엔피 Polishing apparatus and polishing system for glass
KR100584053B1 (en) 2002-09-09 2006-05-29 센트럴가라스 가부시기가이샤 Glass-plate polishing apparatus and method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100584053B1 (en) 2002-09-09 2006-05-29 센트럴가라스 가부시기가이샤 Glass-plate polishing apparatus and method thereof
KR20060016941A (en) 2004-08-19 2006-02-23 주식회사 신안에스엔피 Polishing apparatus and polishing system for glass

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101686235B1 (en) * 2016-05-27 2016-12-15 (주) 아이시스 the method of manufacturing window glass for smart phone and polishing machine for manufacture window glass for smart phone
CN106625242A (en) * 2017-02-22 2017-05-10 浙江理工大学 Grinding head feeding device and glass bevel edge grinding device
CN106625105A (en) * 2017-02-22 2017-05-10 浙江理工大学 Glass rotating device and glass bevel edge grinding device
CN106695492A (en) * 2017-02-22 2017-05-24 浙江理工大学 Grinding head rotary device and glass bevel edge grinding device
CN110561215A (en) * 2019-09-12 2019-12-13 湖北大冶汉龙汽车有限公司 compressor welding mark brushing machine and use method thereof

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