KR101453666B1 - Eadge grinding apparatus - Google Patents

Abstract

The present invention relates to an apparatus for grinding an edge. More specifically, the apparatus three-dimensionally measures an outer surface of an object and performs an edge grinding process based on data measured. According to the present invention, the apparatus transfers a glass to make the glass contact a grinder, and grinds the glass. The apparatus includes: a glass supply measuring unit which loads and transfers the glass and receives data for the exterior shape of the glass; and a glass grinding process unit which receives the glass transferred from the glass supply measuring unit, fixes the glass on a suction plate, adjusts the location of the glass based on the data for the shape, and grinds the glass while making the glass contact the grinder.

Description

[0001] EAST GRINDING APPARATUS [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an edge grinding apparatus, and more particularly, to an edge grinding apparatus in which an outer surface of an object is measured three-dimensionally and edge grinding is performed based on the measured data.

Generally, a glass substrate for a liquid crystal display device is prepared by supplying glass melt dissolved from a dissolving tank to a dissolution molding machine, making glass uniformly flowing through a dissolution molding machine into a glass substrate by temperature control, And a protective film is coated on the surface thereof, and the glass substrate is processed by being transported to a glass substrate processing line. In the glass substrate processing line, the glass substrate is cut again to a size conforming to the standard of the liquid crystal display device, the four sides of the sharpened glass substrate are polished by cutting, chamfering and orientation mark are processed at four corners (Thin Film Transistor).

As a prior art of such a glass substrate edge grinding apparatus for a liquid crystal display apparatus, Korean Patent Registration No. 0460078 is known. The prior art is provided with a feeding device for feeding a glass substrate, a feeding device arranged in series with the feeding device and provided with a carrying position and a carrying position of the glass substrate, a first and a second position, respectively, A first conveying device that moves between a carrying position and a direction switching position and takes over the glass substrate from the supplying device and conveys the glass substrate; A turning device for taking in the glass substrate from the first conveying device at the direction switching position and switching the conveying direction of the glass substrate from the first conveying device to the first conveying device; A second conveying device that moves between the switching position and the unloading position and takes over the glass substrate from the turning device and carries the glass carried by the second conveying device at the second polishing position And a second polishing device for polishing a transport direction side end of the plate, and the automatic transport device for carrying the glass substrate taken out from the position. This technology is capable of manufacturing a high-quality glass substrate by stably and precisely transferring and polishing the glass substrate, and improving the productivity. Further, it can be used for general purpose in accordance with the size of the glass substrate, and it is possible to polish a large glass substrate, and to simplify the structure and arrangement, and to reduce the installation space.

However, in the edge grinding apparatus according to the related art, the edge grinding is performed while uniformly transferring the position without adjusting the deviation in the state where the deviation of the individual objects is not considered, so that the deviation is not corrected properly, There is no problem.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to provide a method and apparatus for measuring the deviation of individual objects before polishing the object with a polishing machine and polishing the object based on the measured data, So that an accurate grinding operation can be performed and an edge grinding apparatus capable of mass-producing uniform quality products.

As a specific means for achieving the above object, the present invention provides an edge grinding apparatus for polishing a glass by transporting a glass and bringing the glass into contact with a polishing machine, the apparatus comprising: a glass supply unit for loading and transporting the glass, A measurement unit; And a glass polishing processing unit for transferring the glass from the glass supply measuring unit and fixing the glass on the suction plate, and polishing the glass by contacting the glass while adjusting the position of the glass according to the shape data.

Preferably, the glass polishing processing unit includes a glass position control unit for adjusting the position of the glass while the glass is fixed to the suction plate, wherein the glass position control unit rotates the suction plate; A Z-axis screw into which the rotation motor is inserted; A Z-axis motor for rotating the Z-axis screw to adjust a height of the attracting plate; A glass position control frame for supporting the attracting plate and the Z-axis motor; An X-axis screw inserted so that the glass position control unit frame is linearly transferred along the X-axis direction; And an X-axis motor for driving the X-axis screw.

Preferably, the shape data of the glass appearance includes at least one item selected from the distance from the reference point indicated in the glass to the end of each glass, the height, and the bend.

Preferably, the glass supply measuring unit includes a glass conveying unit for desorbing and conveying the glass supplied in a state of being placed in a multi-stage cassette, wherein the glass conveying unit comprises: a palm on which the glass is placed; X, Y, and Z axis motors that linearly move the palm along the X, Y, and Z axis directions; And a rotation motor for rotating the palm.

Preferably, the glass conveying portion comprises: a palm guide having the palm fixed to the front; An X-axis motor frame having a rail on which the palm guide is inserted and guided, and an X-axis motor fixed on a lower portion thereof; An X-axis belt connected to and driven by the X-axis motor and having a portion of the palm guide fixed so that the palm guide is moved back and forth along the X-axis direction;

A roller connected to an axis of the X-axis motor; And a horizontal frame having a roller guide rail on which the roller is guided and an X-axis motor guide rail on which the lower end of the X-axis motor is inserted and guided.

Preferably, the glass polishing processing unit includes a glass loading unit for transferring and transferring the glass from the glass supply measuring unit, and the glass loading unit includes a plurality of glass loading units for receiving the glass from the glass feeding measuring unit, A glass support having a vacuum hole formed therein; A vacuum arm for adsorbing the glass from the glass support and transferring the glass to the adsorption plate; And a rotation bar for transferring the vacuum arm between the glass support and the attraction plate position.

The present invention as described above has the following effects.

Since the physical data inherent to the glass is measured before polishing the glass and the position of the glass is finely adjusted on the basis of the measured physical data, the glass product is precisely polished and has a uniform quality.

1 is an external perspective view of an edge grinding apparatus according to the present invention.
FIG. 2 is a perspective view of the edge grinding apparatus with the upper frame removed in FIG. 1. FIG.
Figs. 3 and 4 are perspective views of two parts of the edge grinding apparatus according to the present invention.
5 and 6 are perspective views of a glass supply measuring unit which is a component of an edge grinding apparatus according to the present invention.
7 and 8 are perspective views of a glass transfer part which is a component of an edge grinding apparatus according to the present invention.
9 is a perspective view of a glass polishing processing unit which is a part of the edge grinding apparatus according to the present invention.

The above objects, features and advantages of the present invention will become more apparent from the following detailed description. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

An edge grinding apparatus according to a preferred embodiment of the present invention is shown in Figs. 1-5. As shown in the figure, in the glass supply measuring unit 100, the edge grinding apparatus sequentially picks up and transports a plurality of glass 1 sandwiched in the cassette 10 in a multi-stage manner by the glass transfer unit 110. The glass 1 is conveyed to the glass measuring unit 300 by the glass conveying unit 110 where various physical data of the glass 1 are sensed by the sensor and measured and again transmitted to the glass conveying unit 110 And is then transferred to the glass polishing processing unit 200. The glass polishing processing unit 200 includes a glass loading unit 210, a glass position control unit 220, and a glass polishing unit 230. The glass loading unit 210 receives the glass 1 from the glass supply measuring unit 100 and is transferred to the glass position control unit 220. The glass position controller 220 receives the glass 1 and contacts the polishers 232 and 234 of the glass polishing unit 230 while controlling the position thereof so that polishing is performed according to the collected data from the measuring unit 300 .

That is, the glass 1 is supplied to the cassette 10 in a multi-stage state, then the physical data of the external shape is measured, and the edge polishing proceeds according to the measured data. The measured data is usually collected by the sensor with respect to the reference position printed on the surface of the glass 1 in a cross shape, the length of the outer surface thereof, the height bending, and the like. Since each glass 1 has slightly different measured values from its reference position, polishing proceeds differently to obtain a standardized glass.

Here, Glass (1) is an example of applying the front glass of a smart phone, which is currently in high demand, to a device for polishing.

Referring to Fig. 4, there is shown two sets of edge polishing apparatuses. The operation in the glass supply measuring unit 100 will be described. The two cassettes 10 are supplied with a plurality of glasses 1 in a multi-stage state. The glass 1 is taken out of the cassette 10 by the glass transfer unit 110 and the glass 1 is transferred to the glass measuring unit 300 by the glass transfer unit 110 and the glass 1 is transferred to the glass measuring unit 300 In the section 300, the physical data of the shape is measured by the sensors. The measured data is used later in the polishing operation. The glass 1 subjected to the measurement is again conveyed to the glass polishing processing unit 200 by the glass conveying section 110. The operation of the glass polishing processing unit 200 will be described. The glass loading part 210 includes a glass support 211. The glass support 211 is configured such that the glass 1 is transported by the glass transfer unit 110 to be placed thereon, and a vacuum is applied to the lower portion thereof so as to be firmly seated. The glass loading unit 210 holds the glass 1 of the glass support 211 by vacuum pressure and then rotates it to the glass position control unit 220. The glass position control unit 220 contacts the polishers 232 and 234 of the polishing unit 230 while controlling the position of the glass 1 in accordance with the data values as described above. The glass of the finished product, which has been polished, is transferred again in reverse order and inserted into the cassette 10.

Referring to FIG. 5, the cassette 10 is configured to allow a plurality of glasses 1 to be inserted in multiple stages. The cassette 10 is supplied from the outside and can be placed on a worker or a robot. Since the glass 1 is inserted between the cassettes 10, in order to pull out or insert the glass 1, the glass 1 must be sucked up or slightly lifted or removed. Between the two cassettes 10, a glass measuring unit 300 for measuring the physical data of the outer shape of the glass 1 is provided. Here, various sensors are installed and measurements are made.

5 to 8, the glass transfer unit 110 is provided with a glass 1 placed on a palm 126 which is moved back and forth in the X-axis direction in which the glass 1 is taken out or loaded from the cassette 1 have. It is preferable that the palm 126 is configured to receive vacuum pressure. The palm guide (125) is fixed to the rear of the palm (126). The palm guide 125 is sandwiched between the rails 120f of the X-axis motor frame and also fitted to the X-axis conveying belt 124 as shown in FIG. Accordingly, as the X-axis conveying belt 124 is conveyed, the palm 125 is moved back and forth. The X-axis conveying belt 124 is sandwiched between the front pulley 120d and the rear pulley 120c so that one pulley 120b of the rear pulley is fitted with a pulley 120a of the X- As shown in Fig. And a roller 122 connected to the X axis motor shaft is also provided on the opposite side of the pulley 120a. The rollers 122 are adapted to be conveyed along the roller guide rails 123 in the X-axis direction. In addition, the X-axis motor 120 is also guided by being fitted into the motor guide rail 119a. The roller guide rail 123 and the motor guide rail 119a are both provided on the horizontal frame 119. By this configuration, the driving of the X-axis motor 120 is transmitted to the fore and aft vibration power of the palm 126 through the rollers 122 and the belts 124 and 124a, It goes back and forth to the distance.

The horizontal frame 119 is configured to rotate on a horizontal plane by the rotation of a fixed rotary motor 118 installed in the vertical frame 117.

6, the vertical frame 117 is adapted to abut the screw 116 vertically installed in the connection frame 113a and the screw 116 is secured to the vertical Z-axis motor 114 by the belt 115. [ It is connected to the shaft. Accordingly, the vertical frame 117 is configured to be moved up and down according to the operation of the Z-axis motor 114. The connection frame 113a is fixed to the Y-axis frame 113. The Y-axis frame 113 also reciprocates along the Y-axis direction in accordance with the operation of the Y- . ≪ / RTI >

As a result, the palm 126 is conveyed in the Y-axis direction in accordance with the operation of the Y-axis motor 111, elevated by the Z-axis motor 114, and rotated by the rotation motor 118. Of course, the X-axis motor 120 performs the forward and backward movement as described above.

In this way, the palm 126 can be linearly moved along the X, Y, and Z axis directions as well as rotated.

5, the glass transfer unit 110 loads the glass 1 onto the palm 126 using the palm 126 and then transfers the glass 1 to the glass 126 using the motors 120, 118, 111, And is transferred to the measuring unit 300 to insert the glass 1 between the rollers 301 of the glass measuring unit 300. Then, the physical data of the contour of the glass 1 in the measuring unit 300 is measured by the sensors. That is, information on size, thickness, bend, center mark, etc. is measured by the sensors.

The measured glass 1 is again taken out by the glass transfer part 110 and transferred to be placed on the upper surface of the glass support 211 of the glass loading part 210. Of course, a plurality of vacuum holes 211a are formed on the upper surface of the glass support 211 to fix the glass 1 with a vacuum.

The glass loading unit 210 unloads the glass 1 of the glass support 211 to the glass position control unit 220. Vacuum arms 212 and 214, which are moved by cylinders 213 and 215 in the vertical direction, are installed vertically on both sides of the glass loading part rotary bar 216. The vacuum arms 212 and 214 are configured to adsorb the glass 1 with vacuum pressure. The glass 1 on the upper surface of the glass support 211 is attracted by the vacuum arm 212 and then the rotary bar 216 is rotated 180 degrees so that the glass 1 is placed on the suction plate 227 of the glass position control unit 220 Unload. Actually, the vacuum arm 212 on the opposite side when the glass 1 is adsorbed from the glass support 210 is loaded with the polished glass 1 from the adsorption plate 227 and unloaded onto the upper surface of the support 211 .

9, the glass position control unit 220 has a glass position control unit frame 223 attached to a screw 222 rotated by an X-axis motor 221. Therefore, the frame 223 is controlled to be conveyed in the X-axis direction by the rotation of the X-axis motor 221. A casing 224 is provided on the upper part of the frame 223 to protect the casing 224 with scattered glass pieces. A rotation motor 225, which is not shown inside the casing 224, rotates the suction plate 227, And a screw and a Z-axis motor for transferring the attracting plate 227 and the rotary motor 225 in the vertical direction, that is, along the Z-axis direction, are installed inside. As a result, the attracting plate 227 can be linearly moved along the X and Z axis directions, and is also rotatable. It is not transported along the Y-axis direction. The suction plate 227 is of course capable of applying and releasing vacuum pressure.

The glass polishing part 230 is configured such that the two polishing machines 232 and 234 can be connected to the motors 231 and 233 and rotated. The large grinding machine 232 is used to grind the side edge of the glass 1 and the small grinding machine 234 grinds the edge of a portion such as a hole or a slot inside the glass 1. [ The grinding machine 232.234 and the motors 231 and 233 for driving the grinder are installed in the frame and the height of the frame is automatically adjusted.

Therefore, the polishing machines 232 and 234 rotate only in a fixed position, and the work is performed while the position of the attracting plate 227 is adjusted. Of course, the position is adjusted according to the data per one glass 1 of the attracting plate 227, and work is performed, so that accurate edge polishing is performed.

Fixation to be a polishing process of one glass 1 will be described in order with reference to the above-mentioned respective constituent elements.

The glass 1 of the cassette 10 is loaded on the palm 125 and transferred to the measuring unit 300 in a loaded state. The measuring unit 300 detects the above-described data of the glass 300.

The measured glass 1 is placed on the upper surface of the support 211 by the transfer unit 110 while being placed on the palm 125 again.

The glass 1 placed on the upper surface of the support table 211 is vacuum-absorbed and loaded by the vacuum arms 212 and 214, and the rotary bar 216 is rotated by 180 degrees in this state.

The glass 1 adsorbed by the vacuum arm 212 is unloaded onto the upper surface of the attracting plate 227. Then, the attracting plate 227 fixes the glass 1 with the vacuum pressure.

The X axis, the Z axis and the rotating motors 221 and 225 are operated to adjust the position of the attracting plate 227 and the glass 1 is brought into contact with the polishers 232 and 234 while being fixed on the upper surface of the attracting plate 227, do. Of course, the control position of each of the motors 221 and 225 is made different according to the data value measured by the measuring unit 300 at this time, so that accurate polishing is performed per glass 1.

When polishing is completed, the glass 1 of the suction plate 227 is transported in the reverse order, unloaded to the cassette 10, and shipped to the product.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. It will be apparent to those of ordinary skill in the art.

1: glass
10: cassette 100: glass supply measuring unit
110: Glass transfer part 111: Y-axis motor
112: Y-axis screw 113: Y-axis frame
114: Z-axis motor 118: Rotary motor
119: Horizontal frame 120: X-axis motor
122: roller 123: roller guide rail
124: X-axis transport belt 125: Farm guide
126: Palm 210: Glass Loading Unit
211: glass support 212: vacuum arm
216: rotation bar 220: glass position control part
227: attracting plate 232, 234: polisher

Claims (6)

There is provided an edge grinding apparatus for polishing a glass by transferring a glass and bringing the glass into contact with a polishing machine,
A glass supply measuring unit for loading and conveying the glass and sensing the shape data of the glass appearance;
A glass polishing processing unit for transferring the glass from the glass supply measuring unit and fixing the glass on the suction plate, and polishing the glass by contacting the glass while adjusting the position of the glass according to the shape data;
Lt; / RTI >
And a glass loading unit that transfers the glass from the glass supply measuring unit to the glass polishing processing unit,
The glass loading part
A glass support having a plurality of vacuum holes formed on the upper surface thereof to receive and receive the glass from the glass supply measuring unit;
A vacuum arm for adsorbing the glass from the glass support and transferring the glass to the adsorption plate;
A rotary bar for transferring the vacuum arm between the glass support and the suction plate position;
And an edge grinding device for grinding the edge. The method according to claim 1,
Wherein the glass polishing processing unit includes a glass position control unit for adjusting a position of the glass while the glass is fixed to the attraction plate,
Wherein the glass-
A rotating motor for rotating the attracting plate;
A Z-axis screw into which the rotation motor is inserted;
A Z-axis motor for rotating the Z-axis screw to adjust a height of the attracting plate;
A glass position control frame for supporting the attracting plate and the Z-axis motor;
An X-axis screw inserted so that the glass position control unit frame is linearly transferred along the X-axis direction;
An X-axis motor for driving the X-axis screw;
And an edge grinding device for grinding the edge. The method according to claim 1,
Wherein the shape data of the glass appearance includes at least one item selected from the distance from the reference point indicated on the glass to the end of each glass, the height, and the bend. The method according to claim 1,
Wherein the glass supply measuring unit includes a glass conveying unit for desorbing and conveying the glass supplied in a state of being placed in a multi-stage cassette,
The glass-
A palm on which the glass is placed;
X, Y, and Z axis motors that linearly move the palm along the X, Y, and Z axis directions;
A rotating motor for rotating the palm;
And an edge grinding device for grinding the edge. 5. The method of claim 4,
The glass transfer part
A palm guide fixed to the front of the palm;
An X-axis motor frame having a rail on which the palm guide is inserted and guided, and an X-axis motor fixed on a lower portion thereof;
An X-axis belt connected to and driven by the X-axis motor and having a portion of the palm guide fixed so that the palm guide is moved back and forth along the X-axis direction;
A roller connected to an axis of the X-axis motor;
A horizontal frame on which a roller guide rail on which the rollers are guided and an X-axis motor guide rail on which a lower end portion of the X-axis motor is inserted and guided are formed;
Further comprising an edge grinding device. delete

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