JPS6121929A - Numerical control type automatic glass cutting machine - Google Patents

Abstract

PURPOSE:To obtain an automatic cutting machine capable of cutting plate glass or mirror plate continuously to a desired shape and size with minimum loss of material by constituting so as to operate a glass cutter held by a movable arm of an X-Y Cartesian coordinate axis robbot controlled by a numerical control device. CONSTITUTION:The numerical control automatic glass cutting machine is constituted with a numerical control device 1, X-Y Cartesian coordinate axis robot 3 installed on a table, and a glass cutter operating section 4 for moving a glass cutter holder 5 fixed to one end of a movable arm (Y axis) 3Y thereon. The holder 5 holding a glass cutter 6 at its lower end is detachable and attachable freely. A program prepd. previously by expressing a cutting line or a cutting pattern with coordinates (x, y) is used as control data, and a cutter 6 is traversed by controlling a servo-motor of the X-axis and the Y-axis of the robot 3 in the device 1. Thus, a glass plate is cut automatically along a desired line or a pattern.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an automatic glass cutting device, and particularly to an automatic glass cutting device that can continuously cut glass sheets and end plates into various shapes such as round, square, and oval shapes as well as various shapes by numerical control. This invention relates to a numerically controlled automatic glass cutting device for automatic cutting.

[Conventional technology]

Conventionally, in order to cut sheet glass or mirror plates into the various deformed shapes mentioned above, so-called tracing cutting is performed in which the cutter is moved along a guide frame, and in order to do so, it is necessary to cut the cutter according to each desired cutting shape and size. A kite frame made of iron or plastic must be prepared, and a great deal of time and money is required to finely adjust and modify the shape and dimensions of the guide frame each time it is manufactured and used. In addition, with such conventional techniques, the guide frame must be replaced if the cutting shape or dimensions differ, so a single sheet of glass or mirror plate cannot be continuously cut in various combinations of different shapes and dimensions. This is impossible, the yield rate for the glass plate as a material is poor, and depending on the shape and dimensions, material loss is extremely large.

[Problem that the invention seeks to solve]

This invention was made in view of the above circumstances, and its purpose is to provide a numerically controlled automatic glass cutting device that can continuously and automatically cut glass plates and end plates into desired shapes and dimensions while minimizing material loss. It is about providing.

[Means for solving problems]

In order to solve the above problems, the numerically controlled automatic glass cutting device of the present invention includes a numerical controller, an X-Y orthogonal coordinate robot controlled by the numerical controller, and a movable arm of the robot. It is comprised of an attached glass cutter holding means, and a glass cutter operating means for operating the glass cutter holding means or the glass cutter held at its lower end under the control of the numerical control device.

[For production]

In the numerically controlled automatic glass cutting device of the present invention having the above configuration, the numerical control device operates the glass cutter to cut a glass plate or mirror plate of a predetermined size along a cutting line of a desired shape and size with minimum material loss. X-
Runs the glass cutter by controlling the X-axis servo motor and Y-axis servo motor of the Y-orthogonal coordinate robot.
To automatically cut a glass plate or mirror plate along the above-mentioned cutting line.

〔Example〕

FIGS. 1 and 2 show an embodiment of the numerically controlled automatic glass cutting device of the present invention, and the numerically controlled automatic glass cutting device of the illustrated embodiment is placed on a numerically controlled device 1 and a table 2. X-Y orthogonal coordinate robot 3 and this robot 3
The glass cutter operating section 4 is fixed to one end of a movable (Y-axis) arm 3Y to move the glass cutter holder 5 up and down.

A glass cutter holder 5, which holds a glass cutter 6 at its end, is detachable from the operating section 4. In addition,
In this embodiment, two glass cutter operation parts 4 are provided in the direction transverse to the movable arm 3, and the distance between them can be manually adjusted by a slide unit 7. Alternatively, it is also possible to use three or more as appropriate. The X-Y orthogonal coordinate robot 3 has a fixed (X-axis) arm 3X that is perpendicular to the movable (Y-axis) arm, and this fixed arm 3X is fixed to the table 2 by a support 8. A large number of air holes (not shown) are formed over the entire surface of the work area 2' of the table 2, through which the glass plate or end plate to be processed is attracted by air pressure during cutting, and is blown out once the cutting is completed. The numerical control device 1 is also equipped with a program console 9 for setting control programs, and this program console 9 stores a large number of control programs created in advance. It has a built-in memory bank.

As shown in detail in FIG. 2, the X-Y orthogonal coordinate robot 3 of this embodiment has a fixed (X-axis) arm 3x and a movable (Y-axis) arm 3x.
Each of these arms has an X-axis ball screw IIX and a Y-axis ball screw 11Y that are rotationally driven by a reversible servo motor housed in a motor cover 10X and iQY at one end, respectively. It is provided in the longitudinal direction of each arm. An X-axis bracket 13 integrally formed with the stud 12 is screwed to a ball nut casing (not shown) engaged with the X-axis ball screw 11x, and the Y-axis ball screw 11Y is attached to the stud 12. The Y-axis flange 15 is shown screwed onto the pole nut casing 14 engaged with the ball nut casing 14, and 17X and 17Y indicate slide bearings for the ball nut casings of each axis.

In the above embodiment, the glass cutter operation section 4G is fixed to the end of the movable arm 3Y shown as E in FIG. The Y-axis ball-knot casing 14, which is coupled to move upwardly, is located at the X-Y orthogonal coordinates (x
, 0), so if the Y-axis ball screw 11Y is simultaneously driven to move the movable arm 3Y in a direction perpendicular to the fixed arm 3x, that is, in the Y-axis direction, the movable arm 3Y The glass cutter operation part 4 or the glass cutter operation part 2 fixed to the end E of the glass cutter 2-5
) The position moves according to the coordinates (x,y). Therefore, the numerical controller 1 controls the X-axis servo motor and Y-axis servo of the X-Y orthogonal coordinate robot 3 using a program created in advance by expressing a desired cutting line or cutting turn in coordinates (x, y). By controlling the motor, the glass plate can be automatically cut along the desired cutting pattern.

As the numerical control device 1, for example, one having a configuration as shown in FIG. 3 can be used.

In FIG. 3, the program input from the program console 9 is 510 (serial input/output interface).
The information is input to the storage device 20 via the CPU 18 and stored under the control of the CPU (central processing unit) 19. If there are a large number of programs, the programs can be transferred from the storage device 20 to the memory bank provided in the program console 9 and stored therein, and then read from the memory bank to the numerical control device side as needed. It is now possible to do so.

Now, when a desired program in the storage device 20 is specified using the operation unit 21 and a start switch (not shown) is pressed, the program is sequentially executed under the control of the CPU 19.
P (continuous path) control unit 22 and l),
The signal is input to a T P (point-to-point) control unit 23, and each of these control units supplies a pulse signal to the deviation counter 24 according to the content of the program. The deviation counter 24 is a reversible servo motor 25 for the X and Y axes.
A number of pulses equal to the difference between the number of pulses from the rotary encoder 26 indicating the phase of Rotate the servo motor 5. C
Since the output pulses of the P control section 22 and the PTP control section 23 are continuously changing according to the program, the rotational speed of the servo motor 25 is also constantly changing following this, but this follow-up response is performed quickly and accurately. Therefore, the output pulses of the low reencoder 26 are also fed back to the servo amplifier 2 via the F/V converter 29.

Note that the servo motor 25 and its accompanying control system are provided separately for each of the X-axis and Y-axis, but in order to simplify the drawing, only the − axis is shown in FIG. be.

In this way, the rotational speed of the X-axis and Y-axis servo motors is adjusted according to the program representing the desired cutting pattern.
By performing CP control and FTP control by the P control section 22 and the PTP control section 23, the glass cutter holder 5 attached to the movable arm 3Y is moved to the work area 2'.
During this time, the command pulse generation circuit 30 controls the glass cutter operation unit 4 so that the glass cutter 6 is pressed against the sheet glass surface from the cutting start point to the cutting end point of each cutting pattern. The glass sheet is cut according to the programmed cutting pattern. The side-by-side of the Cartesian robot 3 from one cut to the next is carried out by an internal sequencer 31 pre-programmed to minimize material loss, or by means of the above-mentioned program or an external sequencer (not shown). It is of course possible to do so. Also, when reading out several different programs from the storage device 20 and cutting different cutting patterns continuously, the internal sequencer 3
1 to control the robot 3.

〔Effect of the invention〕

As explained in detail above, according to the numerically controlled automatic glass cutting device of the present invention, it is possible to continuously and automatically cut glass plates and end plates into desired shapes and dimensions with minimal material loss. It can make a significant contribution to improving efficiency in this field.

[Brief explanation of drawings]

The figures show an embodiment of the numerically controlled automatic glass cutting apparatus of the present invention, in which Fig. 1 is a perspective view thereof, Fig. 2 is a perspective view of an X-Y orthogonal coordinate robot, and Fig. 3 is a numerical control device. FIG. DESCRIPTION OF SYMBOLS 1... Numerical control device, 3... X-Y orthogonal coordinate robot, 3Y... Movable arm, 4... Glass cutter operating section, 5... Glass cutter halter 16... Glass cutter. Patent applicant: Kansai Glass Industry Co., Ltd. Agent: Kama 1) Text 2 Figure 1 Figure 2

Claims (1)

[Claims] A numerical control device and X controlled by this numerical control device
- A Y orthogonal coordinate robot, a glass cutter holding means attached to the movable arm of this robot, and a glass cutter holding means for operating the glass cutter holding means or the glass cutter held at its lower end under the control of the numerical control device. A numerically controlled automatic glass cutting device consisting of a cutter operation means and a cutter operating means.