JPH10287439A - Tool for holding glass cutter and combined fabricating apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a holding tool and a combined fabricating apparatus to enable a glass scribing fabrication using a general-purpose facility coping with various fabrication works. SOLUTION: A pressure can be applied to a glass by the single use of a tool 1a for holding a glass cutter 3 by placing a pressing mechanism between the glass cutter 2 and its holding tool 1a and applying a pressing force to an object to be fabricated with the mechanism. A pressing force meeting the thickness of the glass plate to be fabricated is easily attainable by using a variable force mechanism as the pressing mechanism and adjusting the force by setting to a marked force scale.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a general sheet glass processing apparatus, and more particularly, to an apparatus suitable for use in processing glass for displays such as EL and liquid crystal.

[0002]

2. Description of the Related Art Conventionally, when a sheet glass is cut, as disclosed in Japanese Patent Application Laid-Open No. 61-21929, a cutting line is cut on a glass surface using a glass cutting line processing apparatus (glass scribe apparatus). The so-called scribe processing is performed. This glass scribe device is a dedicated machine provided with a tension mechanism for pressing a carbide-made roll-shaped glass cutter or diamond point glass cutter against glass.

[0003] As a method of dividing the glass after the glass scribe processing, there is a method of dividing the glass simply by hand or a method of dividing the glass using a dedicated dividing device (break device).

[0004]

The prior art using a dedicated glass scribe device has the following problems (1) and (2). (1) A dedicated device is required The glass scribe device cuts a cutting line by pressing a glass cutter against glass. This device is provided with a mechanism for applying a pressing pressure.

However, since this equipment is dedicated to glass scribes and suitable for mass production, it is expensive and cannot be used for anything other than glass cutting lines. For this reason, in the field of processing various kinds of materials, or in departments that perform processing at the prototype processing level, the equipment cannot be installed because it cannot provide the merit of the equipment, so processing with general-purpose equipment (for example, NC milling machine, machining center, etc.) is desired. When the glass cutter is simply fixed to the holder and pressed against it, the servo motor can only cut into the specified numerical value of the program, so the processing pressure is very high and a large load is applied to the glass plate There was a problem that would.

(2) The number of processing steps is increased due to a combination of preceding and subsequent steps. A glass substrate used for an electric luminescence element (EL element) or the like, which has attracted attention as a self-luminous display, has a shape shown in FIG. Oil holes are drilled. The processing steps of this glass substrate
When a plurality of EL panels are formed from one substrate, a plurality of oil injection holes are formed in a glass substrate by drilling using an NC milling machine or the like. Thereafter, glass scribe processing is performed. At this time, the glass scribe device is vacuum-adsorbed to a processing table in accordance with a predetermined processing standard.

[0007] At this time, the glass chips at the time of drilling in the previous process adhere to the glass substrate, and the glass chips enter the reference surface and the suction portion when the processing standard is adjusted and vacuum suction is fixed, so that predetermined dimensional accuracy is obtained. No. For this reason, a cleaning step is always required. If the drilling and the scribe processing can be performed based on the same processing standard, the cleaning step becomes unnecessary.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a general-purpose facility capable of performing versatile processing, a holder capable of performing glass scribe processing, and a composite processing. An inexpensive device is provided.

[0009]

In order to solve the above-mentioned problems, the present invention employs the constitutions of claims 1 to 7. According to the configuration of claim 1, by newly providing a pressure mechanism for applying a pressing pressure to the workpiece between the glass cutting cutter portion and the holder, pressure is applied to the glass by the glass cutting cutter holder alone. It is possible to give.

According to the second aspect of the present invention, the pressure mechanism is a pressure variable mechanism capable of adjusting the pressure, so that the pressure applied to the thickness of the glass to be processed in advance can be adjusted to the engraved scale. Then, the required pressure can be easily obtained. According to the third aspect of the present invention, air can be supplied from the air supply nozzle to the glass cutting point to remove glass chips.

According to the fourth aspect of the present invention, the glass cutting cutter holder is attached to an apparatus having a numerical controller, a spindle, and a drive table.
Scribing of glass is possible with general-purpose equipment without using a dedicated machine. In addition, according to the fifth aspect of the present invention, since the equipment has a structure in which the spindle is forcibly rotated, that is, a so-called NC milling machine or the like, a hole is made in the glass substrate with a holder equipped with a drill, and then the glass is cut. Combined processing such as performing glass scribe processing by replacing with a cutter holder becomes possible. This combined processing enables processing without removing the glass substrate, and eliminates the processing reference deviation due to the attachment of processing chips in the previous process (during drilling), which was required when multiple dedicated facilities were used. A cleaning step for prevention can be omitted.

The glass cutting cutter must be used without rotating the spindle, but the drilling requires rotation. Generally, in a machine such as an NC milling machine, the spindle is often rotated and machined. Therefore, if the machining program is mistaken and the glass cutting cutter is accidentally rotated and machined, the glass may be broken and dangerous. . According to the configuration of claim 6, it is possible to function as a safety function for preventing this, and the spindle can not be rotated only when the glass cutting cutter holder is used.

According to the seventh aspect of the present invention, since a tool station and an automatic tool changer are provided, a plurality of tools are prepared in advance and the necessary processing is performed instead of manually changing the tools. If it is automatically changed by a program or the like, processing can be performed continuously. With these configurations, it becomes possible to use this facility for mass production. For example, a tool required for a series of processing reaches a life at a certain interval. By preparing a plurality of the same holders in the tool station in advance and automatically replacing them before the end of the processing life, the processing can be continued without stopping the equipment. Then, the tool whose working life has expired is removed from the tool station during the operation of the equipment, corrected, and returned.

In the case of processing various thicknesses of glass with a multi-product production machine, a plurality of glass cutting cutter holders are prepared for each thickness of the glass, so that the thickness of the processed glass changes according to the processing program. However, it can be easily handled. As described above, according to the present invention, glass scribe processing can be performed with general-purpose equipment, processing can be performed more flexibly, and steps can be reduced and processing efficiency can be increased.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described based on specific embodiments. 1 to 4 show the first embodiment of the present invention.
1 is a side view of a glass cutting cutter holder, FIG. 2 is a side sectional view taken along a central axis of the glass cutting cutter holder held by a spindle 5, and FIG. FIG. 4 is a plan view of the vicinity of the processing area of the combined processing apparatus holding the cutting cutter holder, and FIG. 4 is a plan view of the glass substrate 6 to be processed.

As shown in FIG. 1, a glass cutting cutter holder 1a includes a glass cutting cutter portion 2, a holder portion 3 provided with a pressure mechanism for pressing against a workpiece while holding the glass cutting cutter, and a tool. It comprises a holding section 4 held by a spindle having a detachment mechanism. Holder 4
It is necessary to manufacture the spindle holding part 42 according to the prescribed shape of the spindle of the equipment to be used. In this embodiment, the SCM material is heat-treated and polished in an NT20 (7/24 taper) shape. The tip portion 43 of the holding portion 4 has a shape unique to equipment that can be pulled by a claw provided on the spindle side to prevent the tip portion 43 from coming off the spindle when held on the spindle.

The glass cutting cutter unit 2 is a circular thin plate made of carbide and having a diameter of 2.5 mm and a thickness of 1.0 mm. The cutter tip 21 has a V-shaped outer peripheral end and a hole having a diameter of 0.5 mm in the center. A pin 22 is fixed to the holder 23, and a cover 24 for preventing the pin from coming off is fixed with a screw. Further, as shown in FIG.
The bearing 26 is inserted and fixed between the holder 25 and the support portion 27 so that the first member 1 faces.

As shown in FIG. 1, the glass cutting cutter unit 2 and the holding unit 4 are connected to each other, and a part for applying pressure to the glass is a holder unit 3 provided with a pressure mechanism, and a tool holding unit 41 of the holding unit 4. Has a diameter of 12 mm as shown in FIG.
A hole is polished from the cylindrical portion of FIG. 1, and a spring 32 for pressing and a glass cutting cutter 2 are inserted into the hole.

At this time, the spring 32 has an outer diameter of 8 mm,
A coil spring having a wire diameter of 0.7 mm and a spring constant of 13 kg / mm is used. The outer circumference of the support portion 27 of the glass cutting cutter portion 2 is 12 m in diameter at the center of the tool holding portion 41 of the holding portion 4.
It is polished so as to move smoothly to the cylindrical portion of m without play, and the pressing pressure of the spring 32 is transmitted straight to the glass surface.

When the cap 31 is put on a screw portion cut on the outer periphery of the center portion of the tool holding portion 41 of the holding portion 4 and tightened, the pressing pressure of the spring 32 increases. At this time, the cap 31 is tightened and the pressing force is measured with a push-pull gauge or the like.
For example, if marking is performed on the cap 31 and the holding portion 4 in 0.2 kg units from 0.7 to 1.3 kg, a pressure variable mechanism is formed, and the operation of obtaining a required load becomes easy.

FIG. 3 is a layout diagram of the multi-tasking machine holding the glass cutting cutter holder 1a in the vicinity of the machining area. At this time, the vacuum suction table 8 is placed on the work table 7.
Is fixed, and a glass substrate 6 as a workpiece is sucked thereon. The glass substrate 6 has a thickness of 1.1 mm.
Then, as shown in FIG. 4, two shapes are taken out from one glass substrate, and it is necessary to drill two oil injection holes 6a and then process six scribe lines 6b. The tool station 9 capable of preparing the tool holders of the above is provided with a glass cutting cutter holder 1a and a drill holder 1b serving as a processing holder for drilling.

In the state shown in FIG. 3, two holes have been drilled, and the drill holder 1b and the glass cutting cutter holder 1a have been cut.
In a state in which the tool is replaced and scribing is started, the replacement procedure during that time is as follows. The drive table 7 moves to an empty pot of the tool station 9, and in that state, the spindle 5 descends, the claws inside the spindle 5 open, The drill holder 1b is released, and in this state, the spindle 5 moves up, moves to a position above the glass cutting cutter holder 1a, and then moves down, holds, and moves up to the processing preparation point.

In the glass scribe processing, the glass cutting cutter holder 1a is moved from a position several mm before the glass substrate 6 (a distance at which the glass cutting cutter holder 1a can be accelerated and moved at a constant speed) to a processing end point off the end. At this time, as shown in FIG. 2, since the cutter tip 21 always has the bearing 26 inserted between the holder 25 and the support portion 27, it faces in the cutting direction due to the processing resistance, so the spindle 5 is indexed in the processing direction. It is not necessary at all, and should not be rotated, since rotating it will break the glass substrate.

The tip of the cutter tip 21 of the glass cutting cutter holder 1a is defined as a zero point on the glass substrate.
A program is made to cut into the glass substrate 6 side by about 0.2 mm, and the pressing pressure on the glass substrate 6 is set to 1.0 kg in advance. This processing is performed at six locations by the program, and the process is completed. FIG. 5 relates to a second embodiment of the present invention, and is a cross-sectional view along a center axis of a glass cutting cutter holder having a spindle rotation preventing function held by a spindle 5.

The basic method of use is the same as that of the first embodiment. However, this glass cutting cutter holder 1a has a spindle rotation preventing function, and is equipped with a safety mechanism for preventing the spindle from being accidentally rotated during glass scribe processing. It was done. On the side surface of the holding portion 4 of the glass cutting cutter holder 1a, there is provided a metal first nozzle having an air supply nozzle 14 attached.
A second stay 12 having a proximity switch 13 embedded therein is fixed to the spindle 5 side.

When the glass cutting cutter holder 1 a is held by the spindle 5, the proximity switch 13 detects the metal stay 11. Only in this state, the circuit is configured to cancel when a rotation command is issued from the program side. Also, if there is an air supply command at this time,
Air can be supplied to the glass cut point via the air pipe 15, the inside of the second stay 12, the inside of the first stay 11, and the air supply nozzle 14 to remove glass chips.

In the second embodiment, the proximity switch is used for detecting the glass cutting cutter holder 1a.
Only if the processing equipment side can recognize the glass cutting cutter holder 1a with the detection means such as a limit switch, it is sufficient if a function for preventing the rotation of the spindle is attached.
It does not limit the mounting position of the detector. In addition, the glass cutting tool used is not limited to a roll-shaped glass cutter, and there is no problem with a diamond point cutter, and the work is not limited to glass, and it can be used for scribe work on wafers and all work to add processing lines. Can be done.

As described above, according to the present invention, glass scribe processing, which was conventionally difficult without dedicated equipment, can be performed with general-purpose equipment, and flexible processing can be performed by performing combined processing in combination with various tools. This can lead to more efficient processing and fewer steps.

[Brief description of the drawings]

FIG. 1 relates to a first embodiment of the invention,
FIG. 4 shows a side view of a glass cutting cutter holder.

FIG. 2 relates to a first embodiment of the present invention,
FIG. 3 is a side sectional view taken along a central axis of a glass cutting cutter holder held by a spindle 5.

FIG. 3 relates to a first embodiment of the invention,
FIG. 2 shows a layout of a multi-tasking machine holding a glass cutting cutter holder near a machining area.

FIG. 4 relates to a first embodiment of the invention,
A plan view of a glass substrate 6 to be processed is shown.

FIG. 5 relates to a second embodiment of the present invention and is a cross-sectional view along a center axis of a glass cutting cutter holder having a spindle rotation preventing function held by a spindle 5;

[Explanation of symbols]

 1a Glass cutting cutter holder 1b Processing holder 2 Glass cutting cutter unit 3 Holder unit 4 Holding unit 5 Spindle 7 Drive table 9 Tool station 14 Air supply nozzle

Claims (7)

[Claims] 1. A glass cutting cutter, a holder provided with a pressure mechanism for applying a pressing pressure to a workpiece while holding the glass cutting cutter, and a holder held by a spindle having a tool attaching / detaching mechanism. And a glass cutting cutter holder. 2. The glass cutting cutter holder according to claim 1, wherein the pressure mechanism is a variable pressure mechanism capable of adjusting pressure as desired. 3. The glass cutting cutter holder according to claim 1, wherein an air supply nozzle for removing cutting chips is provided around the glass cutting cutter portion. 4. A numerical control device, a spindle having a tool attaching / detaching mechanism, a drive table controlled by the numerical control device, a glass cutting cutter holder according to any one of claims 1 to 3, A composite machining apparatus comprising: 5. The multi-tasking machine according to claim 4, wherein in the multi-tasking machine, the spindle having the tool attaching / detaching mechanism is arbitrarily forcibly rotated. 6. The multi-tasking machine according to claim 4, further comprising a rotation preventing mechanism that does not forcibly rotate when the glass cutting cutter holder is held on the spindle. The combined processing apparatus according to the above. 7. A tool station capable of installing a plurality of machining holders, and an automatic tool changer capable of arbitrarily exchanging the machining holders installed in the tool station with the spindle. The combined machining apparatus according to any one of claims 4 to 6.