JPH03184739A - Decision on work zone of die - Google Patents

Abstract

PURPOSE:To speed up and miniaturize a work zone deciding program, by always collating at working time the plane diagram which registers the work zone on the frame memory of the computor of an NC control unit in advance and the present position of a tool. CONSTITUTION:In the case of a work zone 2 surrounded by a zone border line 1 existing on an X-Y plane, the whole body is stored by delimiting it with the address corresponding to the XY each axis positional coordinate of the frame memory of the computor of the NC control unit of a die polishing device, etc. In the case of displaying the motion of a tool on the frame memory and executing the motion shown on the working motion locus 3 of the tool inside the work zone 2, four external zones of an X axial direction - side work zone outside 4, X axial direction + side work zone outside 5, Y axial direction -side work zone outside 6 and Y axial direction + side work zone outside 7 are given at the outside of the diagram of the work zone 2 stored on the frame memory. It is then made possible to judge the contents of the following moving action clearly and simply.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for determining a machining area in polishing of a mold or the like.

[Conventional technology]

Conventionally, to determine the machining area, the intersection between the area boundary line and the direction of tool movement is determined, and the current position of the tool is compared with the intersection to control the operation of the tool.

[Problem to be solved by the invention]

In the conventional machining area determination method, it is necessary to recalculate the intersection with the area boundary line every time the direction of movement of the tool changes. Furthermore, it was necessary to re-judge the operation command after the region was determined. Therefore, with the conventional method, it has not been possible to increase the speed and reduce the size of the machining area determination program.

[Means to solve the problem]

The present invention was proposed in view of the above-mentioned problems of the prior art, and the machining area is registered in advance as a planar figure on the frame memory of the computer of the NC control device, and during machining operation, the current position of the tool is By constantly checking the shape on the frame memory, it is automatically determined whether the tool is within the machining area, and a predetermined operation is executed based on the result. .

[Effect]

By storing the area boundary line as a figure on the frame memory, there is no need to find the intersection point between the area boundary line and the tool's direction of movement, and the tool position data on the frame memory that corresponds to the current position of the tool can be used to It determines whether or not it is present, and controls the operation of the tool.

〔Example〕

When there is a processing area (2) surrounded by the area boundary line (1) on the X-Y plane < X-Z plane or Y-Z plane as shown in Figure 1 (the area shape is arbitrary) , Is the entire thing NCed by mold polishing equipment, etc.? tJ1m outfit? On the frame memory of the 1ffi computer, the data is stored separated by addresses corresponding to the x and y axes position coordinates (orthogonal position coordinates) of the tool (an array may be used). That is, the machining area (2) is stored as a planar figure on a frame memory divided by addresses corresponding to orthogonal position coordinates indicating the current position of the tool.

For example, the memory in the processing area (2) is stored as rlJ, and the memory outside the processing area (2) is stored as rOJ.

Then, the operation of the tool is displayed on the frame memory. In addition, when performing the operation shown in the machining operation trajectory (3) of the tool in the machining area (2),
Outside the figure of the machining area (2) stored on the frame memory, as shown in FIG.
4) By providing four external areas: outside the machining area on the + side in the X-axis direction (5), outside the machining area on the same side in the Y-axis direction (6), and outside the machining area on the + side in the Y-axis direction (7), It becomes possible not only to determine whether the current position of the tool is inside or outside the area, but also to clearly and easily determine the content of the next movement operation. for example,
If the tool is outside the area, it can be immediately determined what kind of positional relationship it has with respect to the machining area (2).

The above four areas can be displayed in different colors (red, blue, yellow, white, etc.) on the display screen.

Furthermore, in addition to displaying the area shown in FIG. 2, it is also possible to store data on each coordinate as a numerical value on an address depending on the operating direction of the tool and necessary judgment conditions.

With the above configuration, during machining operation, the address value corresponding to the current position of the tool is read from the frame memory, and based on that value, the current position for the machining area and the next action (for example, reversing the feed direction, etc.) instructions can be obtained.

〔Effect of the invention〕

According to the present invention, in a mold polishing processing device or the like, since the processing area is registered as a planar figure on the frame memory corresponding to the position coordinates of the tool, the intersection of the area boundary line and the direction of tool movement is The positional relationship of the current position of the tool to the machining area can be immediately determined by reading the tool position data on the frame memory, making the machining area determination program faster and more compact. can be achieved.

[Brief explanation of drawings]

FIGS. 1 and 2 are explanatory diagrams of a method of setting a processing area in a frame memory according to the present invention. (1) Area boundary line, (2) - Machining area, (3) - Tool machining operation trajectory. Patent applicant Osaka Kiko Co., Ltd. Agent Shogo Ebara

Claims (1)

[Claims] (1) The machining area is registered in advance as a planar figure on the frame memory of the computer of the NC control device, and during machining operation, the current position of the tool is constantly compared with the figure on the frame memory, so that the tool can perform machining. 1. A method for determining a machining area of a mold, comprising automatically determining whether or not the area is within the area, and executing a predetermined operation based on the result.