KR102180073B1 - Pixel Type Vacuum fixture - Google Patents

Abstract

The present invention relates to a vacuum jig that adsorbs and fixes a workpiece during processes such as cutting and polishing, and is assembled through a simple assembly of a plurality of pixels that form a combination capable of adsorbing in correspondence with various shapes of the workpiece. By applying it to the workpiece of the machine, it is possible to recycle a new jig without remanufacturing it, and when processing the side of the workpiece using pixels of different heights, it is possible to prevent the machining jig from interfering with the upper surface of the jig. It relates to a pixel-type vacuum jig that can prevent damage to the jig by the jig and perform faster and more stable processing.

Description

Pixel Type Vacuum Fixture

The present invention relates to a vacuum jig for adsorbing and fixing a workpiece during processes such as cutting and polishing, and more particularly, to a pixel type vacuum jig that can be easily applied to various shapes of the workpiece and interference of a machine tool. .

In general, a process such as surface cutting in a manufacturing process of a machine part is performed using a machine machine after fixing an object to be processed (hereinafter referred to as a workpiece) to a jig.

At this time, the workpiece is processed in a fixed state by a vise provided on the mounting plate of the machine tool. When the workpiece is fixed in the vise, the front and rear surfaces of the workpiece or the lower ends of both sides of the workpiece are bitten in the vise. As the operating radius of the workpiece is limited, the entire surface of the workpiece has been processed by processing a limited surface of the workpiece, releasing the fixed state, changing the direction, fixing it again in a vise, and repeating the method of reprocessing.

In order to overcome this problem, as disclosed in Korean Utility Model Publication No. 20-0456863 (Vacuum Chuck for Machine Tools, 2011.11.17.), conventionally, a vacuum chuck having an intake port on one side is used at the lower end of the workpiece. After adsorbing and fixing, the surface of the workpiece was processed, so that the time for fixing and releasing the workpiece through a vise could be shortened.

However, the conventional vacuum chuck has a limitation in that it must be manufactured in correspondence with the shape of the lower end of the workpiece, and is provided on a flat surface at the lower end of the workpiece, so that it is processed during processing such as cutting or polishing the side of the workpiece. Problems have been pointed out in that the blade interferes with the vacuum device located at the bottom of the workpiece, thereby stopping the process and damaging the device.

Korean Utility Model Publication No. 20-0456863 (Vacuum chuck for machine tools, 2011.11.17.)

The present invention has been conceived to solve the above problems, and it is intended to provide a pixel type vacuum jig capable of responding to various shapes of a workpiece through simple assembly and preventing interference of the machining jig.

In order to solve the above problems, the present invention is composed of a body having a plurality of through holes arranged at regular intervals on one surface, and a plurality of pixels having suction ports respectively corresponding to the plurality of through holes formed on one surface of the body. The pixel of is characterized in that it comprises a pixel assembly that is assembled on one surface of the body, forming a combination capable of being adsorbed by corresponding to various shapes of the workpiece.

In addition, the pixel assembly is assembled to correspond to the shape in which the workpiece is seated, and corresponds to a vacuum pixel having a suction port communicating from the assembled through hole to an upper surface on which the workpiece is seated, and any one through hole in which the vacuum pixel is not assembled. It is assembled so as to prevent leakage of vacuum pressure from the assembled through-holes, including a base pixel having a suction port whose upper surface is closed to form a combination capable of adsorbing in correspondence with various shapes of the workpiece.

In addition, the vacuum pixel may further include a sealing member provided on an upper surface on which the object to be processed is seated, and to maintain airtightness between the object to be seated and the suction port.

In addition, the pixel assembly further includes a variable pixel having a height lower than that of a vacuum pixel on which the object to be processed is seated on an upper surface, and is combined to prevent interference with a processing jig for the shape or side processing of the object. do.

In addition, the vacuum pixel is inserted into the upper side of the suction port and combined with a sealing block that seals the suction port to form the base pixel.

In addition, it is provided on one surface of the body, it is characterized in that it further comprises a pixel assembly plate having a plurality of assembly protrusions which are protruded upwardly corresponding to the plurality of through holes and inserted downwardly into the suction port of the pixel assembly.

At this time, the body has a coupling pin protruding upward on one surface, and the pixel assembly plate has a pin groove that is coupled to one surface of the body in correspondence with the coupling pin, and the height of the pin groove of the pixel assembly plate is the It is formed to be greater than or equal to the coupling pin, so that the body and the pixel assembly plate can be coupled.

In addition, the fastening protrusion of the pixel assembly plate includes a communication port formed to communicate the through hole of the body and the suction port of the pixel assembly, and the communication port is formed to have an inner diameter smaller than the through hole of the body, It is characterized in that the airtightness between the lower surface and one surface of the body is maintained.

The present invention according to the above-described configuration has the advantage of being able to recycle without remanufacturing a new jig by easily assembling it in a pixel type according to the shape of a workpiece and applying it to a workpiece having various shapes.

In addition, it is possible to prevent the jig from interfering with the upper surface of the jig when processing the side of the workpiece by using pixels of different heights, preventing damage to the jig by the processing jig, and performing faster and more stable processing. There is an advantage to be able to do.

1 is a perspective view showing a vacuum jig according to an embodiment of the present invention.
Figure 2 is an exploded perspective view showing a vacuum jig according to an embodiment of the present invention.
3 is a cross-sectional view showing a vacuum jig according to an embodiment of the present invention.
4 is a perspective view showing a vacuum pixel according to an embodiment of the present invention.
5 is a partially enlarged view showing an enlarged view of a coupling portion of a vacuum jig according to an embodiment of the present invention.
Figure 6 is a perspective view showing a body according to an embodiment of the present invention.
7 is a perspective view showing a pixel assembly plate according to an embodiment of the present invention.
8 is an exemplary view showing the processing of a workpiece using a vacuum jig according to an embodiment of the present invention.
9 is an exemplary view showing a modified example of manufacturing the base pixel of the present invention.

In the present invention, various modifications may be made and various embodiments may be provided, and specific embodiments will be illustrated in the drawings and described in detail. However, this is not intended to limit the present invention to a specific embodiment, it is to be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

When a component is referred to as being "connected" or "connected" to another component, it is understood that it may be directly connected or connected to the other component, but other components may exist in the middle. Should be.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs.

Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted as an ideal or excessively formal meaning unless explicitly defined in this application. Does not.

Hereinafter, the technical idea of the present invention will be described in more detail using the accompanying drawings.

The accompanying drawings are only an example shown to describe the technical idea of the present invention in more detail, so the technical idea of the present invention is not limited to the form of the accompanying drawings.

1 is a perspective view showing a vacuum jig according to an embodiment of the present invention, Figure 2 is an exploded perspective view showing a vacuum jig according to an embodiment of the present invention, and Figure 3 is a perspective view showing a vacuum jig according to an embodiment of the present invention. As a cross-sectional view showing a vacuum jig, referring to FIGS. 1 to 3, a vacuum jig 1000 according to an embodiment of the present invention includes a body 100, a pixel assembly 200, and a pixel assembly plate 300. It can be configured.

The body 100 has a plurality of through holes 111 arranged at regular intervals on one surface 110, and each corresponding to the plurality of through holes 111 in the coupling space 110a on the upper side of the one surface 110 It is composed of a plurality of pixels in which the suction port 211 is formed, and the plurality of pixels correspond to various shapes of a workpiece to form a combination capable of being adsorbed, and the pixel assembly 200 is assembled. In this case, the plurality of pixels is preferably composed of one single pixel, and is preferably assembled in an arrangement according to a combination desired by the user, but is composed of pixel units 210, 220, 230 bonded to each other to have a predetermined shape as necessary. , It may be possible to perform the assembly of the vacuum jig 1000 more easily. Hereinafter, the vacuum pixel 210, the base pixel 220, and the variable pixel 230 are described as a single pixel, and each configuration including the concept of a single pixel and a unit is not confused with each other. It should be analyzed according to the characteristics of, and the combination of the pixel assembly 200 may be variously modified according to the shape of the workpiece to be applied without departing from the gist of the present invention.

In addition, the body 100 has a vacuum room 110b in which the plurality of through holes 111 are communicated below one surface 110, and is connected to an external vacuum pump (not shown) to apply vacuum pressure. By applying a negative pressure to the inside of the vacuum room (110b) through the vacuum suction pipe 120 further including the vacuum suction pipe 120, the workpiece through the vacuum pixel 210 connected to the through hole 111 Can be adsorbed. At this time, although not shown in the drawing, the plurality of through holes 110 may be branched from the vacuum suction pipe 120 in the vacuum room 110b and connected through a connection pipe that is connected to each other, and into one through hole 111 Various modifications may be implemented without departing from the gist of the present invention, such as individually controlling each through hole 111, including a configuration such as a valve that controls the opening and closing of each connected connection pipe.

The pixel assembly 200 is assembled to correspond to the shape in which the workpiece is seated, and the vacuum pixel 210 having a suction port 211 communicating with the upper surface on which the workpiece is seated from the assembled through hole 111, the vacuum pixel Base pixel 220 having a suction port 221 with an upper surface closed so that the vacuum pressure from the assembled through hole 111 does not leak, and 210 is assembled to correspond to any one through hole 111 that is not assembled And a variable pixel 230 having a height lower than that of the vacuum pixel 210 on which the object to be processed is seated on the upper surface, the coupling space of the body 100 to form a combination capable of being adsorbed in correspondence with various shapes of the object to be processed ( 110a) can be assembled. At this time, it is preferable that the variable pixel 230 is also formed to have a closed suction port so that vacuum pressure from the through hole does not leak, and FIG. 8 is a processing of a workpiece using a vacuum jig according to an embodiment of the present invention. As an exemplary diagram showing, referring to FIG. 8, the variable pixel 230 is formed in a shape lower than that of the vacuum pixel 210 and is a part of the workpiece 10 seated on the upper surface of the vacuum pixel 210 May correspond to the lower protruding structure 11 protruding downward, and the lower side of the side surface 12 of the work piece 10, even when cutting and polishing the side surface 12 of the work piece 10 By providing the variable pixel 230 having a low height at a position where the processing jig 20 interferes, it is possible to prevent damage to the pixel due to the interference of the processing jig 20. In this case, the variable pixels 230 include a first variable pixel 230a having a low height according to a corresponding shape, and a second variable pixel 230a having a low height at one edge of the top surface and forming a diagonal diagonal line with an inclined top surface ( 230b), and at this time, the shape of the variable pixel 230 may be variously modified without departing from the gist of the present invention. In addition, the vacuum pixel 210 may also be formed so that the upper surface is inclined with an oblique surface according to the shape of the adhesive surface of the object to be seated on the upper surface so as to be in close contact with the object.

The pixel assembly plate 300 is interposed between the one surface 110 of the body 100 and the pixel assembly 200 to facilitate assembly of the pixel assembly 200, and the body 100 and the pixel A configuration for maintaining airtightness between the assembly 200, a plurality of assembly protrusions 310 that communicate with the through-holes and suction ports in contact with the upper and lower surfaces, and are inserted into the suction ports 211, 221, 231 of the pixel assembly 200 Are arranged. At this time, the pixel assembly plate 300 is made of a rubber material having elasticity and maintains airtightness with the pixels and one surface 110 of the body 100, respectively, contacting the upper and lower surfaces, and the combination and detailed configuration of the pixel assembly plate 300 Will be described in more detail below with reference to the drawings.

4 is a perspective view showing a vacuum pixel according to an embodiment of the present invention, and the vacuum pixel 210 will be described in more detail with reference to FIGS. 3 and 4.

The vacuum pixel 210 is formed with a suction port 211 communicating to correspond to the through hole 111 of the body 100 at the center of the upper and lower surfaces, sealing the suction port 211 of the upper surface, and a workpiece seated on the upper surface. It is preferable that a sealing member 212 is provided for airtightness of the. That is, the sealing member 212 is partially inserted into and fixed to the sealing line 212a formed on the upper surface of the vacuum pixel 210, and the upper part of the sealing member 212 protrudes from the vacuum pixel 210. The sealing member 212 is pressurized by the weight of the workpiece seated on the upper surface to improve the airtightness of the surface where the workpiece and the vacuum pixel 210 contact, and in addition, the workpiece is adsorbed by the negative pressure applied to the suction port 211. By doing so, the force applied to the sealing member 212 is further increased so that the air pressure of the suction port 211 is not exposed. At this time, the vacuum pixel 210 has a tapered shape in which the inner diameter of the suction port 211 on the upper surface is gradually decreased, and has a countersink shape partially concave, and the inside of the suction port 211 formed in the plate head shape and the The sealing groove 212b communicating with the sealing line 212a is concave, so as to prevent the outflow of pneumatic pressure due to instability of the assembly of the vacuum pixel 210 and the unevenness of the suction surface of the workpiece. Can improve performance.

Figure 5 is a partially enlarged view showing an enlarged portion of the coupling part of the vacuum jig according to an embodiment of the present invention, Figure 6 is a perspective view showing a body according to an embodiment of the present invention, Figure 7 is an embodiment of the present invention As a perspective view showing a pixel assembly plate according to an example, the combination of the body 100, the pixel assembly 200, and the pixel assembly plate 300 will be described in more detail with reference to FIGS. 5 to 7.

As shown in FIG. 5, the pixel assembly plate 300 is provided on one surface 110 of the body 100 and protrudes upward in correspondence to the plurality of through holes 111 so that the pixel assembly 200 A plurality of assembly protrusions 310 inserted downward into the suction ports 211, 221, 231 are formed, and the assembly protrusions 310 are the suction ports 211, 221, 231 in contact with the upper surface and the through hole in contact with the lower surface. A communication port 311 communicating with (111) is formed, and at this time, the communication port 311 is formed to have an inner diameter smaller than that of the through hole 111 of the body 100, and the lower surface of the pixel assembly plate 300 And it is possible to maintain the airtightness between the one side 110 of the body 100. That is, it is preferable that the inner diameter (d1) of the communication port 311 is formed to be smaller than the inner diameter (d2) of the through hole 111 of the body 100 (,d1 <d2), and at this time, the vacuum pump is operated When negative pressure is applied to the vacuum room 110b, the through hole 111, the communication port 311, and the suction ports 211, 221, 231, the lower surface of the communication port 311 having a small inner diameter is pressed downward and the body ( There is an advantage in that the airtightness between one surface 110 of 100) and the lower surface of the pixel assembly plate 300 is further improved.

At this time, as shown in Figs. 5 and 6, the body 100 has a coupling pin 112 protruding upward on one surface, and the pixel assembly plate 300 is attached to the coupling pin 112. A pin groove 320 is formed at a corresponding position and coupled to one surface 110 of the body 100, so that the pixel assembly plate 300 is coupled to the one surface 110 of the body 100, It is preferable that the height of the pin groove 320 of the pixel assembly plate 300 is formed to be greater than or equal to the coupling pin 112 so that the coupling pin 112 does not protrude above the pixel assembly plate 300 Do.

In addition, as shown in Figs. 6 and 7, the coupling pin 112 and the pin groove 320 are formed at four corners on one surface 110 of the body 100 and the outer side of the pixel assembly plate 300. Although shown as, the number and position of the coupling pin 112 and the pin groove 320 may be variously modified as necessary without departing from the gist of the present invention. At this time, the coupling pin 112 and the pin groove 320 are provided at the center of a plurality of through holes 111a, 111b, 111c, 111d and assembly protrusions 310a, 310b, 310c, 310d disposed adjacent to each other, and the through holes ( 111), the communication port 311 and the suction port 211 is preferably provided in a position spaced apart as much as possible.

9 is an exemplary view showing a modified example of manufacturing the base pixel of the present invention. Referring to FIG. 9, the vacuum pixel 210 is inserted into the upper side of the suction port to seal the suction port sealing block 240 ) May be combined to form the base pixel 220. That is, the sealing block 240 is inserted into the upper side of the suction port 211 of the vacuum pixel 210 whose upper surface is open to close the upper side of the suction port 211, thereby being used as the base pixel 220. At this time, the base pixel 220 to which the sealing block 240 is coupled is an O-ring 241 coupled to the outer circumferential surface of the sealing block 240 for airtightness between the sealing block 240 and the suction port 211. ) It may further include, and the outer diameter of the sealing block 240 is composed of an elastic material formed larger than the inner diameter of the inlet 211 and inserted into the inlet 211, thereby preventing the airtightness of the inlet 211 Can be maintained. In addition, the sealing block 240 may be fastened to the suction port 211 by forming a thread on the outer circumferential surface to close the suction port 211, wherein the shape of the sealing block 240 is the vacuum pixel 210 It is made in a shape corresponding to the inlet 211 of the, it will be possible to implement various modifications without departing from the gist of the present invention.

The present invention is not limited to the above-described embodiments, and of course, various modifications can be made without departing from the gist of the present invention as claimed in the claims.

10: workpiece 20: processing jig
1000: fixed jig
100: body
110: one side 110a: combined space
110b: lower space 111: through hole
112: coupling pin 120: vacuum suction pipe
200: pixel assembly 210: vacuum pixel
211: suction port 212: sealing member
212a: sealing line 212b: sealing groove
220: base pixel 211: inlet
212: confined space
230: variable pixel 231: inlet
232: confined space
240: sealing block 241: O-ring
300: pixel assembly plate 310: assembly protrusion
311: communication port 320: pinhole

Claims (8)

A body having a plurality of through holes arranged at regular intervals on one side; And
A pixel assembly composed of a plurality of pixels each having an intake port corresponding to a plurality of through holes formed on one surface of the body, and the plurality of pixels form a combination capable of being absorbed by corresponding to various shapes of the workpiece, and are assembled on one surface of the body Including ;,
The pixel assembly is assembled to correspond to a shape in which the workpiece is seated, and has a vacuum pixel having a suction port communicating with an upper surface on which the workpiece is seated from the assembled through hole, and
Including a base pixel that is assembled to correspond to any one through hole in which the vacuum pixel is not assembled, and has a suction port whose upper surface is closed to prevent leakage of vacuum pressure from the assembled through hole,
Pixel type vacuum jig, characterized in that it forms a combination capable of adsorption corresponding to various shapes of the workpiece.
delete The method of claim 1,
The vacuum pixel further comprises a sealing member provided on an upper surface on which the object to be processed is seated, and maintains airtightness between the object to be seated and the suction port.
The method of claim 1,
The pixel assembly further comprises a variable pixel having a height lower than that of a vacuum pixel on which the object to be processed is mounted on an upper surface, and is combined to prevent interference with the shape of the object or a processing tool for side processing Type vacuum jig.
The method of claim 1,
The vacuum pixel is a pixel type vacuum jig, wherein the vacuum pixel is inserted into the upper side of the suction port and combined with a sealing block that seals the suction port to form the base pixel.
The method of claim 1,
A pixel assembly plate provided on one surface of the body and having a plurality of assembly protrusions which are protruded upwardly corresponding to the plurality of through holes and inserted downwardly into the suction port of the pixel assembly;
Pixel type vacuum jig, characterized in that it further comprises.
The method of claim 6,
The body is formed with a coupling pin protruding upward on one side,
The pixel assembly plate has a pin groove corresponding to the coupling pin and coupled to one surface of the body,
Pixel type vacuum jig, characterized in that the height of the pin groove of the pixel assembly plate is formed to be greater than or equal to the coupling pin.
The method of claim 6,
The fastening protrusion of the pixel assembly plate includes a communication port formed to communicate the through hole of the body and the suction port of the pixel assembly,
The communication hole is formed to have an inner diameter smaller than the through hole of the body, and the pixel type vacuum jig, characterized in that to maintain airtightness between the lower surface of the pixel assembly plate and one surface of the body.

Images