KR101381704B1 - Grinding apparatus having device for fixing object - Google Patents

Abstract

Provided is an edge-cutting machine for fixing a workpiece. A workpiece to be chamfered lies on a table, and a main clamping part presses the upper part of the workpiece to fix the workpiece. At least one sub clamping part presses the main clamping part while the main clamping part presses the workpiece to fix the main clamping part.

Description

Grinding machine with fixing means for processing object {Grinding Apparatus having Device for Fixing Object}

The present invention relates to a chamfer provided with the object fixing means.

Chamfering device is a device that trims sharp parts such as the edge of the object to be processed, such as a light guide plate, a substrate, a film, a wafer through a cutting process. By chamfering the edge of the object to be chamfered using the chamfering machine, it is easy to transfer and manipulate the object between processes, and it is possible to prevent the deterioration of the quality of the finished product which may be caused by the rough and sharp edges of the object.

Conventional chamfering machine starts the chamfering operation by clamping the object by pressing the upper part of the object from the top with a cylinder. However, as described above, when clamping the object only from one direction from the top to the bottom or when grooves are formed on the side of the object, there is a limit to accurately fix the object by applying a moment load and shaking the object. There is a need for techniques that can clamp the workpiece with force.

SUMMARY OF THE INVENTION An object of the present invention devised to solve the above problems is to provide a chamfering device having a workpiece fixing means capable of chamfering a workpiece more precisely by clamping the workpiece more stably to prevent movement of the workpiece. It is.

According to an embodiment of the present invention, a table on which an object to be chamfered is placed; A main clamping part which presses an upper portion of the object to fix the object; And at least one sub-clamping portion which fixes the main clamping portion by pressing the main clamping portion while the main clamping portion presses the workpiece. The chamfering machine having the object fixing means may be provided. .

The main clamping unit, the main clamp cylinder descending toward the object to be processed; And a clamp plate connected to a lower surface of the main clamp cylinder and pressing an upper portion of the object to be processed by the lowering of the main clamp cylinder.

The main clamp plate includes at least one groove formed along a circumference, and the at least one sub clamping portion is connected to the at least one groove to clamp the main clamping portion.

Each of the at least one sub clamping unit may include: a sub clamp cylinder which rises in a direction opposite to the main clamp cylinder when the main clamp cylinder descends; A clamp guide bracket which is connected to at least one groove provided in the main clamp plate when the sub clamp cylinder rises to fix the main clamping part; And a cylinder joint connecting the sub clamp cylinder and the clamp guide bracket to move the clamp guide bracket based on the movement of the sub clamp cylinder.

While the sub clamp cylinder is raised, one end of the clamp guide bracket is lowered to be connected to the groove, and the other end of the clamp guide bracket is connected to the cylinder joint to be raised together with the sub clamp cylinder.

One end of the clamp guide bracket has a hook shape.

At least one chamfer to chamfer the object to be placed on the table; And a position gauging unit which provides a reference position such that one surface of the object to be processed placed on the table is in line with the at least one chamfered portion.

The position gauging unit is advanced from the rear surface of the object to be processed by a predetermined distance toward the object to provide the reference position.

The position gauging unit, The gauging plate for providing the reference position to the object to be processed; And a gauging cylinder for advancing the gauging plate toward the object to be processed by the predetermined distance when one surface of the gauging plate is positioned in line with the at least one chamfered portion.

The at least one chamfered portion and the position gauging portion advance forward simultaneously by the predetermined distance, and when the position of the workpiece is aligned, the position gauging portion reverses by the predetermined distance.

According to the embodiment of the present invention, by clamping the processing object in various directions, it is possible to clamp the processing object more stably, thereby preventing the processing object from moving and chamfering more precisely.

In addition, according to an embodiment of the present invention, by providing a reference position for chamfering the object to be processed using a gauging assembly, it is possible to more precisely and accurately chamfering work.

1 is a perspective view of a chamfer provided with a workpiece fixing means according to an embodiment of the present invention from one direction,
2 is a perspective view of the chamfering machine from another direction,
3 is a view showing an example of the operation of chamfering the workpiece to the X-axis clamp feed assembly and Y-axis head feed assembly of the chamfering machine,
4 is a view showing a state before the sub clamping unit of the chamfering machine according to the embodiment of the present invention shown in FIG.
5 is a view illustrating a state in which the sub-clamping unit is operated to clamp the main clamping unit, and
6A to 6D are plan views schematically illustrating an X-axis clamp feed assembly and a gauging assembly to explain a series of processes in which a workpiece is clamped in a chamfering machine according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more readily apparent from the following description of preferred embodiments with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

In this specification, when an element is referred to as being on another element, it may be directly formed on another element, or a third element may be interposed therebetween. Further, in the drawings, the thickness of the components is exaggerated for an effective description of the technical content.

Where the terms first, second, etc. are used herein to describe components, these components should not be limited by such terms. These terms have only been used to distinguish one component from another. The embodiments described and exemplified herein also include their complementary embodiments.

The expression that component A and component B are connected (or connected or fastened or coupled) to each other in the description and / or claims of the present application means that component A and component B are directly connected or that one or more of the other components Quot; is used in the meaning including to be connected by an intermediary.

Also, terms used herein are for the purpose of illustrating embodiments and are not intended to limit the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms "comprises" and / or "comprising" used in the specification do not exclude the presence or addition of one or more other elements.

Hereinafter, the present invention will be described in detail with reference to the drawings. In describing the specific embodiments below, various specific details have been set forth in order to explain the invention in greater detail and to assist in understanding it. However, those skilled in the art can understand that the present invention can be used without these various specific details. In some cases, it is mentioned in advance that parts of the invention which are commonly known in the description of the invention and which are not highly related to the invention are not described in order to prevent confusion in explaining the invention without cause.

1 is a perspective view of a chamfer 10 having a processing target fixing means according to an embodiment of the present invention from one direction, Figure 2 is a view of the chamfer 10 from another direction, Figure 3 is a chamfer ( X-axis clamp feed assembly 200 and Y-axis head feed assembly 400 of the 10 is a view showing an example of the operation to chamfer the object 10, Figure 4 is a chamfer according to an embodiment of the present invention FIG. 10 is a diagram illustrating a state before the sub clamping unit 250 operates.

1 to 3, the chamfer 10 for fixing the workpiece 20 includes a main frame 100, an X-Axis clamp feed assembly 200, and a gauging assembly. (Gauging Assembly) 300, Y-Axis Head Feed Assembly (400) and the main cover (Main Cover) (500).

The main frame 100 provides a frame to which the X-axis clamp feed assembly 200, the gauging assembly 300, the Y-axis head feed assembly 400, and the body cover 500 are attached and fixed.

Referring to FIG. 4, the X-axis clamp feed assembly 200 aligns and fixes the position of the workpiece 20 to be chamfered. To this end, the X-axis clamp feed assembly 200 is a table 210, the table cover 220, the clamp body (230), the main clamping portion 240 and at least one sub-clamping portion (250) Include.

The table 210 is provided at the center of the table cover 220 and has a rotatable form. The table 210 may have a circular or polygonal shape. In the present embodiment, the table 210 will be described using circular as an example. On the table 210, the jig base 21, the jig 22, and the object 20 of the object to be chamfered 20 are sequentially placed. The jig base 21 is fixed on the table 210 to provide a position where the object 20 is placed, the jig 22 depends on the size of the object 20 and the outer periphery of the object 20 Support it. The object to be processed 20 may have a form in which a plurality of thin films such as a display film, a polarizing plate, and the like are stacked or may be made of one object.

The table cover 220 has a shape surrounding the table 210 and moves in the X-axis direction with respect to the main frame 100. More precisely, as the X-axis clamp feed assembly 200 moves in the X-axis direction, the table cover 220 also moves.

The clamp body 230 is formed on the table cover 220 or the top of the table 210 by pillars attached to both sides of the table cover 220. A fixing means is provided in the clamp body 230, and the fixing means is provided with a main clamping part 240 and a part of at least one sub-clamping part 250.

A part of the main clamping part 240 is provided in the clamp main body 230, and presses an upper portion of the object 20 placed on the table 210 to fix the object not to move on the table 210.

5 is a view illustrating a state in which the sub clamping unit 250 is operated to clamp the main clamping unit 240.

The X-axis clamp feed assembly 200 illustrated in FIGS. 4 and 5 is a cross-sectional view of the X-axis clamp feed assembly 200 cut in the X-axis direction.

1 to 5, the main clamping part 240 includes a main clamp cylinder 241 and a main clamp plate 242.

The main clamp cylinder 241 is provided inside the clamp body 230, and allows the main clamp plate 242 to descend toward the upper portion of the object 20 or to rise from the upper portion of the object 20. The main clamp cylinder 241 may cause the main clamp cylinder 241 to move by a distance set by a controller (not shown).

The main clamp plate 242 is connected to the lower surface of the main clamp cylinder 241 and descends toward the object 20 by the main clamp cylinder 241 or ascends toward the clamp body 230 from the object 20. . When the main clamp plate 242 descends in the direction of the workpiece 20, the main clamp plate 242 presses the upper portion of the workpiece 20 so that the workpiece 20 is fixed without moving.

The main clamp plate 242 may have a circular or polygonal shape, and the embodiment will be described using the circular as an example. At least one groove 243 is formed along the circumference of the main clamp plate 242. The number of the grooves 243 formed in the main clamp plate 242 may be the same as the number of the sub-clamping portions 250 or one circular shape along the circumference.

At least one sub-clamping unit 250 to be described below may be connected to at least one or more grooves 243 to clamp the main clamping unit 240. In addition, when one groove 243 is formed in a circular shape along the circumference of the main clamp plate 242, the number of sub clamping parts 250 may not be limited.

The at least one sub clamping part 250 may additionally press the main clamping part 240 while the main clamping part 240 presses the object 20 to fix the main clamping part 240. Thus, not only the main clamping part 240 but also at least one sub-clamping part 250 may clamp the object 20, and the surrounding environment such as the movement of the main clamping part 240 or the movement of the table 210. Even if a change occurs in the workpiece 20 can be prevented from moving.

At least one sub clamping part 250 according to an embodiment of the present invention is a sub clamp cylinder 251, a cylinder bracket 252, a cylinder joint 253, a clamp guide bracket 254 and a clamp fix block 255, respectively. It includes.

The sub clamp cylinder 251 has a structure that rises in the opposite direction to the main clamp cylinder 241 when the main clamp cylinder 241 is lowered. The sub clamp cylinder 251 may rise at the same time while the main clamp cylinder 241 descends, or after the main clamp cylinder 241 descends by a predetermined distance.

The cylinder bracket 252 prevents the sub clamp cylinder 251 from being separated from the clamp body 230 after being mounted in the clamp body 230.

The cylinder joint 253 connects the sub clamp cylinder 251 and the clamp guide bracket 254 to serve as a joint to move the clamp guide bracket 254 based on the movement of the sub clamp cylinder 251.

When the sub clamp cylinder 251 is raised, the clamp guide bracket 254 is connected to at least one groove 243 provided in the main clamp plate 242 to fix the main clamping part 240. To this end, one end of the clamp guide bracket 254 has a hook shape as shown in FIG. 5, and the other end is connected to the cylinder joint 253.

4 and 5, when the main clamp plate 242 clamps the object 20 as the main clamp cylinder 241 descends, both sub-clamp cylinders 251 are raised. . At this time, the cylinder joint 253 connected to and fixed to the sub clamp cylinder 251 is connected to the clamp guide bracket 254 to serve as a joint. Accordingly, one end of the clamp guide bracket 254 is lowered and connected to the groove 243 in a ring shape while the sub clamp cylinder 251 is raised, and the other end connected to the cylinder joint 253 is connected to the sub clamp cylinder 251. Rises together. That is, the clamp guide bracket 254 is clamped while moving like a seesaw according to the movement of the sub clamp cylinder 251.

When the chamfering operation of the object 20 is completed, the sub clamp cylinder 251 is raised in the opposite direction, so that one end (ie, the head portion) of the clamp guide bracket 254 comes out of the groove 243 and clamped. Release it.

The clamp fix block 255 provides a reference axis for the clamp guide bracket 254 to move like a seesaw while keeping the clamp guide bracket 254 in connection with the cylinder joint 253.

6A to 6D illustrate the X-axis clamp feed assembly 200 and the gauging assembly 300 to explain a series of processes in which the object 20 is clamped in the chamfer 10 according to the embodiment of the present invention. A simplified plan view.

6A to 6D, the gauging assembly 300 applied as the position gauging unit provides a reference position for aligning the position of the object 20 placed on the table 210. That is, the gauging assembly 300 provides a reference position such that one surface of the object 20 is in line with the right chamfer 410 to be described later. The gauging assembly 300 may advance from the rear surface of the object 20 to the object 20 by a predetermined distance to provide a reference position. In FIG. 1, the rear surface of the object 20 shows a surface facing the gauging assembly 300.

To this end, the gauging assembly 300 includes a gauging unit 310, a gauging cylinder 320 and a gauging plate 330.

The gauging unit 310 provides a frame in which the gauging cylinder 320 and the gauging plate 330 are fixed.

The gauging cylinder 320 allows the gauging plate 330 to be advanced in the direction of the object 20 by a distance determined by the controller (not shown).

The gauging plate 330 provides a reference position for the object to be processed. That is, as shown in FIG. 2, the gauging plate 330 includes two sides of the a-shape, and the two sides of the a-shape are provided as reference positions.

When the gauging assembly 300 is advanced by the distance set by the controller, the user manually sets two surfaces (the back surface and the surface perpendicular to the bowel movement) of the gauging plate 330 at right angles to the object to be processed 20. Make sure that it is in close contact with the face (a shaped face, reference position). In this way, alignment of the object 20, that is, zero point adjustment, is completed.

6A to 6D, when the gauging assembly 300 has a longer length of the two a-shape planes forming the gauging plate 330, is placed in line with the right chamfer 410. Move forward primarily. When the gauging plate 330 and the right chamfer 410 are placed in a straight line, the gauging cylinder 320 is advanced in the direction of the arrow shown by the distance set by the gauging plate 330 toward the object to be processed 20. (A). While the step (a) is in progress, the right chamfer 410 and the left chamfer 420 may move forward toward the object 20 together with the gauging assembly 300 (b). In step (c), the right chamfer 410 and the left chamfer 420 are advanced by a predetermined distance to the controller (not shown), and the preset distance is the right chamfer 410 and the left chamfer 420. May be a distance from the object to be processed 20. Upon completion of steps (a) and (b), the user may manually position the workpiece 20 so that the two sides of the workpiece 20 coincide with the two sides of the gauging plate 330. Calibrate as

When the alignment of the object 20 is completed, the gauging assembly 300 is again moved back by the advance distance, that is, the stroke of the gauging cylinder 320. As a result, the gauging plate 330 may be prevented from being interfered while the object to be processed 20 is moved to the chamfers 410 and 420. When the gauging assembly 300 moves backward, the jig 23 and the jig base 24 are sequentially stacked on the upper portion of the object to be processed 20. When the jig 23 and the jig base 24 are stacked, the main clamping part 240 and the at least one sub-clamping part 250 clamp the object 20. When the clamping of the object 20 is completed, the X-axis clamp feed assembly 200 moves in the X-axis direction. The X-axis clamp feed assembly 200 may move to a position where the surface to be chamfered of the object 20 faces the right chamfer 410 and the left chamfer 420.

1 to 5, the Y-axis head feed assembly 400 chamfers the object 20 using the right chamfer 410 and the left chamfer 420 moving in the Y-axis direction. To this end, the Y-axis head feed assembly 400 is the right chamfer 410, the left chamfer 420, the Y-axis feed rail 430, the right slide body 440, the left slide body 450, Y axis The cover 460, the Y-axis feed motor 470 and the chamfering motors 480 and 490 are included.

The right chamfer 410 chamfers the right side of the object 20, and the left chamfer 420 chamfers the left side of the object 20. To this end, the right chamfer 410 and the left chamfer 420 is provided with a tip (Tip) for chamfering.

The Y-axis feed rail 430 provides a path for the right slide body 440 and the left slide body 450 to feed each other by the Y-axis feed motor 470 to face each other or to move away from each other. Therefore, the right chamfering part 410 and the left chamfering part 420 respectively move in a direction approaching each other, and when chamfering of the object 20 is completed, it moves in a direction away from each other again. In the right slide body 440 and the left slide body 450, the right chamfer 410 and the left chamfer 420 respectively move by a predetermined distance as in step (c) of FIG. 6 (b).

The Y-axis cover 460 supports the right slide body 440 and the left slide body 450 when the right slide body 440 and the left slide body 450 move along the Y-axis feed rail 430.

The chamfering motors 480 and 490 drive the right chamfering part 410 and the left chamfering part 420, respectively, so that the object to be processed 10 may be chamfered.

The body cover 500 collects waste generated while the right chamfer 410 and the left chamfer 420 chamfer. To this end, the right chamfering portion 410 and the left chamfering portion 420 may be provided with a duct for sucking the waste to be delivered to an external dust collector (not shown).

While the present invention has been described with reference to the particular embodiments and drawings, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. This is possible. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the equivalents of the claims, as well as the claims.

10: chamfer 100: main frame
200: X-axis clamp feed assembly 210: Table
220: table cover 230: clamp body
240: main clamping portion 241: main clamp cylinder
242: main clamp plate 243: groove
250: sub clamping unit 251: sub clamp cylinder
252: cylinder bracket 253: cylinder joint
254: clamp guide bracket 255: clamp fix block
300: gauging assembly 310: gauging unit
320: gauging cylinder 330: gauging plate
400: Y-axis head feed assembly 410: right chamfer
420: left chamfer 430: Y-axis feed rail
440: right slide body 450: left slide body
460: Y-axis cover 470: Y-axis feed motor
480, 490: Chamfering motor 500: Corer

Claims (10)

A table on which an object to be chamfered is placed;
A main clamping part which presses an upper portion of the object to be placed on the table to fix the object; And
And at least one sub-clamping portion configured to press the main clamping portion to hold the main clamping portion while the main clamping portion presses the object to be processed. The method of claim 1,
The main clamping unit,
A main clamp cylinder descending toward the object to be processed; And
And a clamp plate connected to a lower surface of the main clamp cylinder and pressing the upper portion of the object by the lowering of the main clamp cylinder. 3. The method of claim 2,
The main clamp plate includes at least one groove formed along the circumference of the main clamp plate, wherein the at least one sub clamping part fixes the main clamping part in a state where the at least one sub clamping part is located in the at least one groove. Chamfering machine provided with the object to be fixed to be processed. The method of claim 1,
The at least one sub clamping unit, respectively,
A sub clamp cylinder which rises in a direction opposite to the main clamp cylinder when the main clamp cylinder descends;
A clamp guide bracket which is positioned in at least one groove provided in the main clamp plate when the sub clamp cylinder is raised to fix the main clamping part; And
And a cylinder joint connecting the sub clamp cylinder and the clamp guide bracket to move the clamp guide bracket based on the movement of the sub clamp cylinder. 5. The method of claim 4,
While the sub clamp cylinder is raised, one end of the clamp guide bracket is lowered and connected to the groove, and the other end of the clamp guide bracket is connected to the cylinder joint and rises together with the sub clamp cylinder. Chamfering machine with fastening means. 6. The method of claim 5,
One end of the clamp guide bracket is a chamfer (Hook) characterized in that the chamfering machine provided with a processing object fixing means. The method of claim 1,
At least one chamfer to chamfer the object to be placed on the table; And
And a position gauging portion for providing a reference position such that one surface of the object to be processed placed on the table is in line with the at least one chamfered portion. 8. The method of claim 7,
The position gauging unit,
And chamfering machine provided with the object to be fixed, wherein the reference position is provided by advancing a predetermined distance from the rear surface of the object to be processed. 9. The method of claim 8,
The position gauging unit,
A gauging plate which provides said reference object with said reference position; And
And a gauging cylinder for advancing the gauging plate by the predetermined distance when the one surface of the gauging plate is located in line with the at least one chamfered portion. Chamfer with a. 10. The method of claim 9,
And the at least one chamfered portion and the position gauging portion advance forward simultaneously by the predetermined distance, and when the position of the object is aligned, the position gauging portion is reversed by the predetermined distance. Chamfering machine.

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