JPH02180539A - Cad/cam device - Google Patents

Abstract

PURPOSE:To judge at first sight whether or not an aiming shape can be worked without trouble in advance, by analyzing each input information by storing by inputting the shape information, etc., of the body to be worked and displaying each analyzed information on the same scope. CONSTITUTION:The shape information, etc., of the body to be worked are input from a keyboard 6 and mouse device 7. Each input information is stored in a memory 2 and displayed on a CRT 5. Then, a tool route B is calculated by obtaining each information stored in the memory 2, the interference of a wire guide D and clamper C is analyzed as well and the stages of the tool route B and the wire guide D moved along the tool route B are displayed on the CRT 5 on the upper face of the body to be worked or the optional section according to the working order again. Now, the interference of the wire guide D and clamper C or the working route can be confirmed by graphic display. Moreover an alarm sound is sent in case of any interference. Thus, all the process until obtaining the aiming shape from the body to be worked can be confirmed.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention is a CAD/CAM method for investigating interference between a wire guide and a clamper, which is a problem when machining a workpiece into a desired shape using a wire-cut electrical discharge machine. It is related to the device.

[Conventional technology]

gXs diagrams to FIG. 6 are diagrams showing a conventional CAD/CAM device, FIG. 5 is a block diagram, and FIG. 6 is a display explanatory diagram.

In FIG. 5, (1) is a CPU that processes various data such as the shape information of the workpiece input from the keyboard (6) or the mouse device (7) and the information on the clamper that fixes the workpiece; +2) is a memory that stores each input data, (3) is a printer that prints each input data, and (4) is a paper tape input/output device that punches each food data and reads the punched paper tape. device, (5) is a CRT that displays input figures or characters, +6) is a t-th keyboard for inputting data, (7) is a CRT +5
A mouse device (or tablet electronic device) that inputs the information necessary for drawing on 1.

(8) is an auxiliary storage device that stores and writes dangerous information and reads out and stores dangerous information;
~(8) are connected to bus (9).

Next, the operation will be explained.

From the keyboard (61 or mouse device (7)), information on the shape of the workpiece, information on the ninth tool path for machining the workpiece into the desired shape, information on the wire (processing tool) and the clamper that fixes the workpiece is input. When you type.

After each information is sent to OPU [1] via bus (9).

Memorized in January 2). When each piece of information has been input, check whether the desired shape can be machined using the input tool path information. (Processing tool) information and clamper information are read, and when the wire moves along the tool path, it is analyzed whether the wire and clamper interfere or not, and the Considering the shape of the workpiece (Fig. 6 (A)), the shape of the clamper (Fig. 6 (C1)) and the tool shape, the next tool path is displayed on the CRT (51) in the order of machining.

(Fig. 6 (B)) [Problem to be solved by the invention] Since the conventional CAD/CAM device is configured as described above, the shape of the workpiece, the tool path, the wire (processing tool), and the clamper are You can check if the desired shape can be machined from the shape.

Wire guide information is not taken into account until the stage of actual machining with a wire-cut electrical discharge machine.

It is not possible to judge whether or not machining can be performed without interference (interference between the clamper and wire guide (tool fixture)), and in the worst case, the clamper and wire guide (tool fixture) may come into contact during machining, causing damage to the processing machine itself. Problems such as destroying the hot friend.

This invention was developed in an effort to solve the above-mentioned problems, and allows 9 operators to check at a glance whether the desired shape is an obstacle (or not) before actually machining it with a wire-cut electrical discharge machine. The purpose is to obtain an fcl:!AD/CAM device that can be determined by

[Friendly means of solving problems]

CAD/C according to this invention! The AM device is a means for inputting and storing shape information of the workpiece, tool path information, clamper shape information, and wire (processing tool) and wire guide (tool fixture) shape information.

A means for analyzing each piece of inputted information, a means for displaying each piece of analyzed information on the same screen, and a means for notifying an operator of an abnormality are provided.

[Effect]

According to the information analysis means and information display means of this invention, there is no interference between the wire (processing tool) and wire guide (tool fixture) moving along the tool path and the clamper that fixes the workpiece to the processing table. The information analysis means analyzes the situation, and the information display means displays the situation on the top surface or any cross section of the workpiece, and if there is interference, the abnormality notification means sounds a warning sound.

It is possible to eliminate the hindrance at the stage of actual machining with a wire-cut electric discharge machine due to interference and changing the color of the clamper.

〔Example〕

Figures 1 to 5 are diagrams showing one embodiment of the present invention.
The figure is an overall configuration diagram, Figure 2 is a flowchart showing the operation of Figure 1, Figures 3 to 4 are explanatory diagrams, and Figure 5 is a block diagram. This is similar to the conventional device.

As is clear from FIG.
+61. The information on the shape of the workpiece, tool path information, wire, wire guide, and clamper information inputted from 171 is stored by the information storage means ttn, and each stored information is analyzed by the information analysis means .

The analysis results are displayed on the CRT via the information display means (13
If an abnormality occurs (the wire guide interferes with the clamper), the abnormality notification means 114 notifies the operator.

Next, the operation of the above embodiment will be explained with reference to FIGS. 2 to 5.

First, the shape information IAI of the workpiece, the tool path information (B
).

Wire (In the case of wire, the tool path information can be considered to be the same)
, wire guide (D), and clamper information (C) (shape information, etc.).First, in step S1, input of each of the above information is completed and it is checked whether or not they are friends. The process proceeds to S9.

If the input is not completed, each piece of information is input from the keyboard (6) or mouse device (7). (Steps 83-8B
) The input information is stored in the memory 12) in step ay and displayed on the CRT [5) in step S8.

(Finally, the wire guide in the wC3 diagram (displayed without DJ) Next, when each information input is completed, in step 89, note 1
The information stored in month 2) is obtained, and the presence or absence of the information is checked in step 810. If the information does not exist, the process ends. If it exists, in step 811 the tool path (
131, and also analyzes whether the wire guide (D) and the cranometer (<-tc) interfere with each other, and in step 8
In step 12, the tool path (B) and the wire guide (D) moving along the tool path (B) are again shown on the top surface of the workpiece (Fig. 3) or any cross section (Fig. 4) according to the machining order.
are displayed on the CRT +51. Here, you can check the interference between the wire guide (D) and the clamper (C) or the machining path using graph ink. If there is further interference (step 813L), the operator is notified by sounding a warning sound and changing the color of the interference clamper in step 814. In step SIO, the tool path information (
Step S9 until it is determined that Bl is all υ output ratio.
-813 are repeatedly executed.

In this way, it is possible to check all the imperfections until the desired shape is obtained from the workpiece.

In addition, in the above example, a wire cut electrical discharge machine was used,
The purpose is to prevent problems during processing7? j3
Although this is an AD/CAM device, the same effect can be achieved in other machine tools such as machining centers by using tool information and chuck information that fixes the tool instead of wire guide information.

In addition, when machining a target shape using a wire-cut electrical discharge machine, the wire (processing tool) and the tth wire guide (tool fixture) that holds the wire in a predetermined position relative to the workpiece are attached to the workpiece. The clamper is installed on the workpiece and the clamper is attached to the workpiece so that they do not interfere with each other so that they do not interfere with each other. A tool path that takes into account the size of the clamper is drawn on the upper surface of the workpiece at an arbitrary cross section, and the intersection of the tool path and the shape of the clamper is calculated. If interference occurs, a warning sound is sounded at that location. A similar effect can be achieved by providing a function to notify the operator that there is an abnormality by interfering with the clamp wire guide and displaying the color of the companion clamper in a manner different from that of the normal clamper.

〔Effect of the invention〕

As explained above, according to the present invention, information on the shape of the workpiece, tool path information, and wire guide and clamper information are displayed on the top surface of the workpiece or any cross section at the same time, and an alarm sounds when an abnormality occurs. The system is configured to sound and change the color of the abnormal clamper, so it is not only possible to check whether the tool path information provides the desired shape, but also to easily check whether there is interference between the wire guide and the clamper. It can be confirmed that there is no problem during actual machining (
It has the effect of

[Brief explanation of the drawing]

1 to 4 are diagrams showing one embodiment of a CAD/CAM device according to the present invention, with FIG. 1 being an overall configuration diagram and FIG. 2 being a flowchart showing the operation of the invention. 3 and 4 are explanatory diagrams, and FIG. 5 is a block diagram showing the present invention and a conventional CAD/CAM device. Figure 6 shows the conventional C! FIG. 2 is an explanatory diagram of a display of an AD/CAM device. In the figure, (1) is C! PU, (2) is memory, (3
) is a printer, C4) is a paper tape input/output device, and (5) is a CRT. (6) is a keyboard, (7) is a mouse device, +81 is an auxiliary storage device, A is a workpiece, B is a tool path, C is a clamper, D is a wire guide, and E is a wire. Note that the same reference numerals in Figure 9 indicate the same parts.

Claims (1)

[Claims] Based on the shape information of the workpiece, information on the clamper that fixes the workpiece (machining tool information), information on the fixture that fixes the machining tool, and tool path information for the workpiece, CAD/CA with a function to check whether the tool path information allows the correct target shape to be obtained from the workpiece
M device.