KR100900388B1 - Processing table - Google Patents

Abstract

Provides a processing table for receiving and discharging a workpiece. In the surface plate 2 for mounting and processing a workpiece | work on the mounting surface 3, the some storage hole 4 which penetrates from the mounting surface 3 to the bottom face is formed, In the containment hole 4, the conveyance arm 8 which provided the conveyance roller 7 rotatable about the horizontal axis in the upper end, respectively, is raised so that the conveyance roller 7 may protrude on the mounting surface, or Or arrange | position so that the conveyance roller 7 may be lowered so that it may be stored under the mounting surface 3.

Description

Machining Tables {PROCESSING TABLE}

The present invention relates to a processing table, in particular a processing table for mounting and processing a workpiece in the form of a sheet or sheet.

As described in Patent Literature 1 and Patent Literature 2, for example, in a coating apparatus in which a glass substrate for a display panel is mounted on a processing table and subjected to coating processing, multiple indirect parts having a fork are provided. I) With a robot, a glass substrate is mounted on a processing table, and the glass substrate is lifted from the processing table.

In the apparatus of patent document 1 and patent document 2, the pin which raises a glass substrate protrudes from a processing table in order to insert and pull out a fork under a glass substrate on a processing table.

In the case of configuring an apparatus that continuously executes two types of processing using such a robot, for example, as shown in FIG. 9, the glass substrate G is moved from the supply conveyor 31 to the first robot 32. It transfers to the 1st processing table 33, transfers the glass substrate G processed by the 1st processing table 33 to the 2nd processing table 35 with the 2nd robot 34, and the 2nd processing table ( The glass substrate G processed at 35 is transferred to the discharge conveyor 37 by the third robot 36.

In such a production line, it is necessary to prevent an operator from entering and leaving within the movable range of the robots 32, 34, 36 for safety. In other words, the robots 32, 34, 36 occupy a very large space.

In addition, Patent Document 3 describes a cartesian robot that carries a glass substrate.

As mentioned above, the conveying apparatus using a robot not only occupies a large installation space, but also has a problem of being expensive.

(Patent Document 1)

Japanese Patent Application Laid-Open No. 2000-197844

(Patent Document 2)

Japanese Patent Application Laid-Open No. 2002-102771

(Patent Document 3)

Japanese Patent No. 3004239

In view of the above problems, it is a problem to provide a processing table capable of receiving and discharging a workpiece.

MEANS TO SOLVE THE PROBLEM In order to solve the said subject, the process table which concerns on this invention is provided with the some storage hole which penetrates from the upper mounting surface to the bottom surface, and mounts a workpiece | work on the said mounting surface, and processes it in the said storage hole. A plurality of conveying arms disposed at each of the plurality of conveying rollers rotatably disposed around the horizontal axis and capable of raising the conveying roller to protrude above the mounting surface or lowering the conveying roller to be stored under the mounting surface; It shall be provided.

According to this structure, a workpiece can be conveyed by a conveyance roller on a surface plate by protruding a conveyance arm, and a workpiece can be mounted on a surface plate by lowering a conveyance arm. For this reason, even without a robot or the like, the processing table can receive a workpiece from an adjacent device, mount it on a surface plate, process it, and discharge the workpiece to the adjacent device.

Moreover, in the process table of this invention, an endless belt may be temporarily installed in the said conveyance roller between the drive rollers installed below the bottom face of the said surface plate.

According to this structure, the drive source of a conveyance roller can be arrange | positioned under a platen, a storage hole does not become larger than necessary, and the area which a platen supports a workpiece does not become small, and a workpiece | work is stabilized.

In the processing table of the present invention, the drive rollers may be connected to each other so as to be rotated by one motor.

According to this structure, since a conveyance roller rotates synchronously, a workpiece can be conveyed stably.

Moreover, in the process table of this invention, you may be provided with the frame which connects the said several conveyance arm below the said surface plate, and the lifting mechanism which raises and lowers the said frame.

According to this structure, each conveyance arm can be raised and lowered simultaneously, and the conveyance and mounting of a workpiece can be performed smoothly.

In the processing table of the present invention, a shock absorber may be provided between the frame and the surface plate to limit the ascending speed of the frame.

According to this configuration, the workpiece can be prevented from being out of position or damaged by the lifting and lowering of the transfer arm.

Moreover, in the processing table of this invention, the said processing table may provide the sensor hole open to the said mounting surface, and may arrange | position the sensor which confirms the position of the said workpiece in the said sensor hole.

According to this structure, a position can be determined correctly with respect to a workpiece.

As described above, according to the present invention, receiving and discharging of the workpiece can be achieved by disposing a conveying arm having a conveying roller capable of raising and lowering in a storage hole provided in the surface plate of the processing table. As a result, installation of a robot or the like becomes unnecessary, and space-saving and low-cost processing facilities can be realized.

EMBODIMENT OF THE INVENTION Hereafter, embodiment of this invention is described, referring drawings.

1, the processing table 1 which is one Embodiment of this invention is shown. The processing table 1 includes, for example, a surface plate 2 made of granite, and an upper side of the surface plate 2 serves as a mounting surface 3 for mounting a glass substrate (workpiece) to perform a coating process. In the mounting surface 3, a plurality of storage holes 4, a plurality of suction holes 5, and a plurality of sensor holes 6 are formed.

The storage hole 4 penetrates from the mounting surface 3 to the bottom surface, and inside it, the conveyance arm 8 provided with the conveyance roller 7 rotatable about the horizontal axis is arrange | positioned at the upper end. The suction hole 5 communicates with the pipe line vacuum-absorbed by the vacuum pump which is not shown in figure, and is for sucking and stabilizing the glass substrate mounted in the mounting surface 3 at the time of a process. The photoelectric sensor 9 is arrange | positioned inside the sensor hole 6, and the position of a glass substrate can be confirmed.

2, the conveyance arm 8 accommodated in the storage hole 4 and its support structure are shown. Each conveyance arm 8 is fixed to a spherical frame 10 disposed below the surface plate 2.

The frame 10 is made to rise by contraction of the piston of the fluid cylinder (elevation mechanism) 11 fixed to the bottom face of the surface plate 2. In addition, the frame 10 has a linear slider 13 which slides along a sliding axis 12 fixed to the bottom surface of the surface plate 2, respectively, and a front end thereof. A plurality of shock absorbers 14 abutting against the bottom of (2) are provided.

The frame 10 has a plurality of drive rollers 15 arranged below the transfer arm 8, and an endless belt 16 having a circular cross section between the transfer roller 7 and the drive rollers 15. Is hypothesized. The drive roller 15 is rotated together with the pulley 17 provided on the same shaft, and is connected to each other by the coupling shaft 18 and the synchro belt 19, and the motor 20 Are rotated at the same time and in the same direction.

In this embodiment, when the fluid cylinder 11 is retracted, as shown in FIG. 1, the upper end (the conveying roller 7) of the conveying arm 8 protrudes from the containment hole 4 onto the mounting surface 3. However, when the fluid cylinder 11 is extended, the conveyance arm 8 is positioned so that the conveyance roller 7 and the endless belt 16 are located below the mounting surface 3, as shown in FIG. It is made to fully store in the storage hole 4.

As shown in FIG. 4, the processing table 1 contracts the fluid cylinder 11 to protrude the conveying roller 7 above the mounting surface 3, and the endless belt 16 is driven by the motor 20. In the state which rotated, glass substrate G can be received from the conveyor etc. which adjoin the rotation direction upstream of the endless belt 16. FIG.

The detail of the upper end of the conveyance arm 8 is shown in FIG. By the thickness, the endless belt 16 protrudes more than the conveyance roller 7 in the center, and supports the lower surface of the glass substrate G. As shown in FIG. The glass substrate G moves horizontally by the rotation of the endless belt 16, and moves the upper side of the surface plate 2 horizontally.

The processing table 1 monitors the position of the glass substrate G which has been horizontally moved by the photoelectric sensor 9, and when the glass substrate G reaches the predetermined position by the rotation of the endless belt 16, The rotation of the motor 20 is stopped to stop the glass substrate G. When the glass substrate G is stopped at a predetermined position, the processing table 1 extends the fluid cylinder 11, and as shown in FIG. 6, lowers the transfer arm 8 to store the storage hole 4. Fully housed inside. As a result, the glass substrate G is mounted to abut the mounting surface 3, and the air is sucked from the suction hole 5, so that the glass substrate G is mounted as shown in FIG. 7. Adsorbed at a predetermined position in the center.

When a coating operation is performed on the surface of the glass substrate G by a coater (not shown), the processing table 1 contracts the fluid cylinder 11 to raise the frame 10 to thereby carry a transfer arm ( The endless belt 16 abuts on the lower surface of the glass substrate G, and lifts the glass substrate G by projecting the upper end of 8) from the storage hole 4 to the mounting surface 3.

At this time, the shock absorber 14 prevents a sudden rise of the frame 10, the carrier arm 8 collides with the glass substrate G at a high speed, and the glass substrate G is broken by an impact, By vibrating with the lifting of the transfer arm 8, the glass substrate G is prevented from shifting the position in the horizontal direction.

In this state, when the motor 20 is rotated, the drive rollers 15 start to rotate in unison and all the endless belts 16 rotate in the same direction. As a result, the glass substrate G placed on the endless belt 16 moves horizontally in the rotational direction of the endless belt 16 and is discharged to an adjacent conveyor or the like.

As mentioned above, since the processing table 1 of this embodiment can convey the glass substrate G which is a workpiece | work, there is no need for the large-scale apparatus for water supply like a robot, and the installation space and cost for it There is no need for this.

For example, as shown in FIG. 8, when different processing is continued to glass substrate G by two processing tables 1A and 1B, the processing table 1A is directly from the supply conveyor 21. As shown in FIG. The glass substrate G can be received and positioned, and the processed glass substrate G can be sent to the processing table 1B. Similarly, the processing table 1B can receive and position the glass substrate G directly from the processing table 1A, and can discharge the processed glass substrate G to the discharge conveyor 22.

That is, the manufacturing line containing the processing tables 1A and 1B uses the conventional processing tables 33 and 35 which require the robots 32, 34 and 36 as shown, for example in FIG. Compared with the production line, the overall length is significantly shortened.

In this embodiment, although the endless belt 16 abuts on the glass substrate G, you may make the conveyance roller 7 support and convey the glass substrate G by making the diameter of the conveyance roller 7 large. . In addition, the method of rotationally driving each conveyance roller 7 is not only using the synchro belt 19 and the endless belt 16 like this embodiment, but also the combination of a rotating shaft and a bevel gear, etc., Any electric mechanism may be used.

1 is a perspective view of a machining table of one embodiment of the present invention;

FIG. 2 is a perspective view showing a conveyance arm of the machining table of FIG. 1 and its supporting structure; FIG.

3 is a perspective view of the machining table of FIG. 1 in which a transport arm is stored;

4 is a perspective view showing a state in which the processing table of FIG. 1 receives a glass substrate;

FIG. 5 is a detailed partial sectional view at the time of projecting the conveyance arm of the machining table of FIG. 1. FIG.

FIG. 6 is a detailed partial sectional view at the time of conveyance arm storage of the machining table of FIG. 1; FIG.

The perspective view at the time of the glass substrate process of the process table of FIG.

8 is a plan view of a production line using the machining table of FIG. 1.

9 is a plan view of a production line using a conventional machining table.

* Explanation of symbols for the main parts of the drawings

1: machining table

2: surface plate

3: mounting surface

4: containment hole

5: suction hole

6: sensor hole

7: conveying roller

8: return arm

9: Photoelectric Sensor

10: frame

11: fluid cylinder (lift mechanism)

14: shock absorber

15: drive roller

16: endless belt

20: motor

G: glass substrate (workpiece)

Claims (6)

A plurality of storage holes penetrating from the upper mounting surface to the bottom surface, the mounting plate for mounting and processing the workpiece on the mounting surface; The conveying roller which is arrange | positioned in the said storage hole, respectively, and rotatable about a horizontal axis is provided in the upper end, and the said conveying roller raises so that it may protrude above the said mounting surface, or it descends so that the said conveying roller may be stored under the said mounting surface. A plurality of conveying arms, A frame that connects the plurality of transfer arms to the lower side of the surface plate, And a lifting mechanism for lifting and lowering the frame. The processing table according to claim 1, wherein an endless belt is provided between the conveying rollers and a driving roller provided below the bottom of the surface plate. The processing table according to claim 2, wherein the drive rollers are connected to each other so as to be rotated by one motor. delete The processing table according to any one of claims 1 to 3, further comprising a shock absorber for limiting the ascending speed of the frame between the frame and the surface plate. The said processing table is a process table of Claim 1 in which the sensor hole opened in the said mounting surface is formed, and the sensor which confirms the position of the said workpiece in the said sensor hole is arrange | positioned.

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