JPS63297237A - Dividing apparatus - Google Patents

Abstract

PURPOSE:To lessen the damage of a working object, by lifting a working tool with an actuator according to a signal transmitted from an acoustic emission sensor detecting and recognizing the working noise emitted by the working of the object with the working tool. CONSTITUTION:A scribed glass plate 11 is placed on a table 18 and fixed with a vacuum chuck in such a manner as to coincide the scribed groove almost to the top of the tool. A worm gear 19 is rotated with a motor 13 to lower a tool 12 along a guide 17 until the tool 12 is brought into contact with the glass plate and the plate is worked. The working noise generated in the working is detected and recognized by an acoustic emission sensor 14 and the tool 12 is lifted by reversing the rotation of the motor 13.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a dividing device for dividing a single glass plate or laminated glass after T-scribing.

BACKGROUND OF THE INVENTION In recent years, the amount of processing for dividing glass substrates and laminated glass has increased due to the increase in the number of +4 film elements and liquid crystal displays, and improvements in processing efficiency and processing precision are expected.

An example of a conventional dividing device that performs these divisions will be described below with reference to the drawings. FIG. 2 shows a perspective view of a conventional dividing device. In Fig. 2, 1 is a glass plate as a workpiece, 2 is a tool with a R @ on the tip,
3 is an air cylinder for raising and lowering the entire tool; 4 is a stopper for determining the lowest point of the tool 3; 5 is a tool holder; 6 is a guide for raising and lowering the tool holder; 7 is a table equipped with a vacuum chuck.

Next, the operation of the above dividing device will be explained.

First, the entire thickness of the workpiece 1 is measured, and the stopper 4 is set at a tool lowering point that matches the thickness. At this time, the optimum lowering point of the tool differs depending on the material of the workpiece and the state of the scribe (pre-processing), so the shape (thickness, etc.) of the workpiece
If the material is different, it is necessary to conduct a trial split and determine the optimal descending point. After adjusting the stopper position, the scribed workpiece 1'f is placed on a table so that the scribe groove and the tool tip are aligned, and held by a vacuum chuck. Tool 2' to the air cylinder 3 to the arrow! i'' The tool is lowered until it stops at the stopper 4. After confirming that the tool has completely lowered and the workpiece has been machined, the tool is raised using the tool total error cylinder 3.

Problems to be Solved by the Invention However, with the above-mentioned configuration, it may not break due to changes in the thickness of the workpiece or the state of the scribe, etc.
On the other hand, large chippings and cracks may occur, making stable processing impossible. Furthermore, adjusting the stopper requires trial and error, which takes time. Furthermore, when processing laminated glass, the optimal lowering point of the tool differs depending on the distance between the joint and the split.

Even with a single sheet of laminated glass, if there were multiple splits, it would be necessary to change the lowering point of the tool, and other problems were completely overlooked.

In view of the above problems, the present invention provides a dividing device that does not require adjustment of the lowering point of the tool.

Means for Solving the Problems In order to solve the above problems, the dividing device of the present invention includes a tool with a radius at the tip, an actuator that lowers the tool, and an acoustic emission system that recognizes machining.
It consists of a sensor and an actuator that raises the tool based on a signal from the sensor.

Function The present invention uses an acoustic emission sensor to determine whether or not machining has been performed and raises the tool after machining has been performed, so even if the shape and material of the workpiece are different, the tool can be used without adjusting the lowering point of the tool. Processing is carried out reliably and without causing damage such as large chippings or cracks.

EXAMPLE Hereinafter, a dividing device according to an example of the present invention will be described with reference to the drawings. FIG. 1 shows a perspective view of a dividing device in an embodiment of the present invention. In FIG. 1, 11 is a workpiece, 12 is a tool, 13 is a motor that moves the tool up and down, 14 is an acoustic emission sensor that recognizes machining sounds, 15 is a motor control unit, 16 is a tool holding unit, 17 is a guide portion that guides the entire vertical movement of the tool holding portion;
8 is a table equipped with a vacuum chuck.

The operation of the dividing apparatus configured as described above will be explained below with reference to FIG. The scribed glass plate 11 is placed on the table 18 so that the scribe groove and the tip of the tool substantially coincide with each other, and fixed by a vacuum chuck (not shown).

Next, the motor 13 rotates the worm 19, and the tool 1
When the tool 2 is lowered along the guide part 17, the tool 12
The glass plate 11 comes into contact with the glass plate 11 and processing is performed. The processed sound generated at this time can be processed using acoustic emission
It is detected and recognized using the sensor 14, and the motor 13 is reversely rotated to raise the tool 12.

As described above, according to this embodiment, by providing an acoustic emission sensor that detects and recognizes machining noise near the machining point, machining can always be performed near the optimum lowering point of the tool, and the lowering point of the tool can be You can perform reliable machining without any adjustment, with little machining damage.

Effects of the Invention As described above, the present invention includes a tool, an actuator that lowers the tool, an acoustic emission sensor that detects and recognizes the sound of machining a workpiece by the tool, and a tool that uses signals from the sensor to lower the tool. By providing an actuator that raises the entire tool, it is possible to perform complete machining with little machining damage without adjusting the tool lowering point, and it has great practical value.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a dividing device according to an embodiment of the present invention, and FIG. 2 is a perspective view of a conventional dividing device. 11... Workpiece, 12... Tool, 1
3...Motor, 14...Acoustic emission senna. Name of agent: Patent attorney Toshio Nakao and 1 other person12
-Tool 13-Motor 14--Acoustic press 3-℃〉15-1-Moder control section f6-Tool holding section 17--Guide/--1 Workpiece 2-Tool 3-11 Error cylinder 4-m-stopper 5- tool holding part 6--gauge capital

Claims (1)

[Claims] A dividing device that includes a tool, a drive unit that moves the tool up and down, an acoustic emission sensor that detects the sound of machining a workpiece by the tool, and a control unit that operates the drive unit based on a signal from the sensor. .