JPH0752000A - Automatic parallelizing method for workpieces on a processing machine - Google Patents

Abstract

(57) [Summary] [Structure] After gripping a plate-shaped workpiece by a clamp by hand, the height of at least four points on the surface of the workpiece is measured by an automatic length measuring machine, and the measured data is processed by a computer. The tilt of the workpiece is calculated by using the tilt, and the tool is tilted by the corresponding angle based on the calculated tilt. [Effect] When multiple clamps are sequentially moved to the processing stage by the conveyor, the displacement due to the movement automatically
It is solved unattended.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for parallelizing a workpiece in a processing machine for machining a plate-shaped workpiece.

[0002]

2. Description of the Related Art As a setup before machining, parallel alignment of a workpiece is performed, and the method is as follows.
First, the work (or work) is placed on the clamp tool of the processing machine and screwed. Use a dial gauge to measure the height of several points on the surface of the work piece. If the workpiece is tilted as a result of the measurement, a spacer or pad having a thickness corresponding to the tilt amount is inserted, the height is measured again, and the presence or absence of tilt is determined. By repeating this manual work, the parallel alignment is completed when the inclination of the workpiece disappears.

[0003]

However, since all of the conventional parallelizing methods are manual work, a worker must be present at the processing machine before processing each workpiece, and it is necessary to secure personnel. Is a problem in performing continuous automatic processing. Further, since all the work is done by hand, there is a problem that the time required for completing the work and the accuracy of the parallelism differ depending on the skill and skill of the worker. Further, even for a skilled worker, the conventional parallel alignment method takes a considerable amount of time and is a problem.

[0004]

The above problems can be solved by the method for automatically parallelizing a workpiece in a processing machine according to the present invention as set forth in claim 1.

Here, the "automatic length-measuring device" includes an electronic micrometer and a laser length-measuring device, which may be of a contact type or a non-contact type. From the convenience of computer processing, an automatic length-measuring device that outputs the measurement result as an electric signal is preferable, directly outputting a digital electric signal, or arranging an analog-digital converter in the subsequent stage and converting the analog signal into a digital signal. Type on your computer.

Further, the tools of the processing machine include a cutting cutter, a perforating drill, a milling blade, a polishing grindstone, a saw tooth, and a wire discharge wire.

[0007]

EXAMPLE An example of the present invention will be described below with reference to FIG.

The left part of FIG. 1 is a plan view showing a state where the plate-shaped workpiece 1 is manually gripped by the clamp 2 of the processing machine. Based on the theory that "a plane is defined by three points", the inclination of a plate-shaped workpiece is automatically measured. However, in actuality, since the plate-shaped workpiece is not a flat surface but has some warpage, the measurement points are 5 points in total, one at the four corners of the workpiece and one at the center. Next, as shown in the center of FIG. 1, the measurement data is processed by a computer to calculate the direction of the normal line of the workpiece, that is, the inclination. And
As shown in the right part of FIG. 1, the wire discharge head 3 of the wire electric discharge machine is tilted by a corresponding angle with respect to the workpiece based on the calculated tilt so that the wire 4 is perpendicular to the workpiece. To do. Wire 4 and work piece 1 at the same time
The wire feeding head 3 is finely moved in the X and Y directions so that the intersection with and is at a predetermined position on the workpiece, and the wire winding side wheel (not shown) is also finely moved in the X and Y directions. Let These are unattended and automated.

[0009]

EFFECTS OF THE INVENTION In an automatic processing machine having a plurality of clamps on a conveyor and moving the clamped workpieces one by one to a processing stage each time the processing is finished, It is desirable to apply the method for automatically parallelizing the workpieces in the processing machine of the present invention to the workpieces that have come to the above. As a result, the parallel displacement caused by the movement of the conveyor is completely eliminated.

Further, if the workpieces are manually gripped by a plurality of clamps on the conveyor, it is not necessary for the worker to be present afterwards, which is labor saving. Further, it is not necessary for the worker to witness the processing machine and repeat the parallelizing operation almost regularly, so that it is possible to relieve the harsh monotonous work.

[Brief description of drawings]

FIG. 1 is a schematic view showing an embodiment of the present invention.

[Explanation of symbols]

 1 Workpiece 2 Clamp 3 Wire feeding head 4 Wire 5 Computer

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuyuki Muto 666 Kumano, Shioyama City, Yamanashi Prefecture Enomoto Co., Ltd. Lead Frame Division Shioyama Factory Engineering Section

Claims (4)

[Claims] 1. A plate-shaped work piece is manually gripped by a clamp of a working machine, and then the height is measured at at least four predetermined positions on the surface of the work piece by an automatic length-measuring device. An automatic parallelizing method for a workpiece in a processing machine, in which the inclination of the workpiece is calculated by computer processing, and the tool of the processing machine is tilted at a corresponding angle with respect to the workpiece based on the calculated inclination. 2. The method for automatically parallelizing a workpiece in a processing machine according to claim 1, wherein the measurement is performed at four points at four corners of the workpiece and one point at the center. 3. The machine according to claim 1, wherein the machine is a wire electric discharge machine, and the wire feeding head of the wire electric discharge machine is tilted by a corresponding angle with respect to the workpiece based on the calculated tilt. Item 3. An automatic parallelizing method for a workpiece in the processing machine according to Item 2. 4. A plate-shaped workpiece is manually gripped by a clamp of a processing machine, and then the height is measured by an automatic length measuring machine at at least four points at predetermined positions on the surface of the workpiece. An automatic parallelizing method for a workpiece in a processing machine, in which the inclination of the workpiece is calculated by computer processing and the workpiece is tilted by a corresponding angle based on the calculated inclination.