JPH02252001A - Device for forming numerical control information - Google Patents

Abstract

PURPOSE:To simultaneously inputs generating working shapes, to make operation easy and to shorten a data input time by automatically forming working processes even in the case of the generating working shapes including shape elements having respectively different face roughness. CONSTITUTION:A shape element string from the shape definition starting point up to the end and the face roughness of respective shape elements are inputted from a data input part 1 and stored in a generating working shape storing part 2. The sort SQ of a working process is formed in each shape element string obtained by dividing the shape element string SP of the creative working shape read out from the storage part 2 in accordance with the face roughness and registered in a generating working process registering part 7. On the other hand, a shape element string SR to which finishing margins are added when necessary is determined by a working shape determining part 12 and registered in a registering part 7. Then, working order data SS are registered in a working order data registering part 13 through the input part 1 and the working order of respective working processes SU is determined by a working order determining part 14. Thereby, the generating working shapes can be inputted at a time, the operation can be made easy and the data input time can be shortened.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a numerical control information creation device that generates machining steps and creates numerical control information when performing creative machining with a numerically controlled machine tool.

(Conventional technology) In a numerically controlled lathe with complex machining functions, C is the rotating axis.
Creation machining such as linear plane machining, 9-arc surface machining, etc. is performed by moving the X-axis or Z-axis while rotating the axis.

FIG. 6 is a block diagram showing an example of a conventional numerical control information creation device for creating numerical control information when performing creative machining, in which a shape element sequence S^ constituting a creative machining shape is inputted via a data input section l. cutting conditions SR for each material of the material are registered in the cutting condition registration section 3 via the data input section 1, and tool data SC is stored in the tool data registration section 1 via the data input section 1. It is now registered in Section 4. The cutting condition determining unit 5 generates a shape memory unit 2.
Cutting conditions SE for machining each shape element SD read out from the cutting condition registration section 3 are read out and determined, and each shape element SF read out from the generating machining shape memory section 2 by the used tool determining section 6. The tool data SG used for machining is read out from the tool data registration section 4 and determined. Then, the shape element sequence SH stored in the generating processing shape memory section 2, the cutting conditions Sl determined by the cutting condition determining section 5, and the tool data SJ determined by the used tool determining section 6 are used for generating processing as a machining process. The information is registered in the process registration section 7, and numerical control information for creative machining is created in the numerical control information creation section 8 based on the registered machining process.

(Problems to be Solved by the Invention) In the conventional numerical control information creation device described above, the surface roughness of some of the shape elements of the shape element array of the inputted generating shape is different, and only the rough machining process is required. , when a rough machining process and a finishing machining process are required, it is not possible to manually input the shape element sequence at once. In such cases, the operator inputs the generated machining shape for each machining process, and The disadvantage was that the order had to be determined by oneself, which took too much time and effort.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to enable inputting all generated machining shapes including shape elements with different surface roughness at once, and to automatically generate machining steps. An object of the present invention is to provide a numerical control information creation device that can create numerical control information using the following methods.

(Means for Solving the Problems) The present invention relates to a numerical control information creation device that generates a machining process based on a manually generated generated machining shape and creates numerical control information. , means for dividing the shape element array constituting the generated shape into a rough machining process, a rough machining process, and a finish machining process according to the surface roughness of each shape element, and a rough machining process as a pre-process of the finish machining process. By providing a means for adding a finishing allowance to a shape element sequence of a new rough machining process to generate a shape element sequence for a new rough machining process, and a means for determining the order of the generated machining processes according to a machining order registered in advance. achieved.

(Function) The numerical control information creation device of the present invention classifies shape elements according to the type of machining process and automatically performs the operation of grouping the same machining process, so the operator can input the generated machining shape at once. can do.

(Embodiment) FIG. 1 is a block diagram showing an example of the numerical control information creation device of the present invention in correspondence with FIG. 6, and the same components are given the same reference numerals and the explanation thereof will be omitted. In this numerical control information creation device, the shape element sequence SP of the generated machining shape read out from the generation machining shape memory unit 2 by the generation machining process generation unit 11 is divided into shape element sequences SP according to the surface roughness of each shape element. A machining process type sq is generated and registered in the generative machining process registration unit 7, and a shape element sequence SR to which a finishing allowance is added as necessary is determined by the machining shape determining unit 12 and registered in the generative machining process registration unit. 7 is now registered. Further, the machining order data SS is registered in the machining order data registration section 13 via the data input section 1, and the machining order data registering section 14 creates the creation process based on the machining order data ST read out from the machining order data registration section 13. The processing order of each processing step Su registered in the process registration section 7 is determined.

In such a configuration, an example of its operation will be explained with reference to the flowchart in FIG. The shape element array L1 to i from to the shape definition end point E and the surface roughness of each shape element are sequentially stored in the generating processing shape memory section 2. The creative processing process generation unit 11
The shape element sequence J21 to IL is read out from the generation processing shape memory unit 2 (step S1), and the first shape element IlI viewed from the shape definition starting point S is extracted (step 52). It is determined whether the surface roughness of this shape element 1 is the finish signal "" (step S3), but since the surface roughness of this shape element 1 is the finish symbol "", only the rough machining process is required. is generated (step S5). Next shape element 1. In step s6), the surface roughness of the next shape element IL2 is not the same as the surface roughness of the current shape element JZ. Therefore, the process returns to step S3 and it is determined whether or not it is the finishing symbol "". Since the surface roughness of the next shape element 1 is the finishing signal "", a rough machining process and a finish machining process are generated (step S4), and further the next shape element 1. It is determined whether the surface roughness of the current shape element ℃2 is the same as that of the current shape element ℃2 (step S6), but the surface roughness of the next shape element ℃ is the same as the surface roughness of the current shape element 1□. Therefore, the same rough machining process and finishing process as the machining process of the current shape element β2 are generated (step S7), and it is determined whether the shape element j2s is the last shape element or not (step S8). , the shape element fi3 is not the last shape element, so the process returns to step S6 and the next shape element IL
In this way, the last shape element 17
By repeating the above-mentioned operations, it is possible to generate the rough machining process of the shape elements fLr, 1t, and the rough machining process and finish machining process of the shape elements 2□ to i6.

Next, the machining shape determining unit 12 generates shape elements 12° to US in which finishing allowances are added to the shape elements J22 to J26 of the rough machining process as a pre-process of the finish machining process (
Step S9). In other words, the shape elements tt, 1 to 1 are formed by adding a finishing allowance LD in the radial direction as shown in FIG. 4 (8) and a finishing allowance LL in the depth direction as shown in FIG. 4(B).
Generate i6°. However, if the machining shape is a groove, the radial finishing allowance LD is unnecessary since the tool center locus is indicated.

Then, the tool deciding unit 6 decides to use a rotary tool such as an end mill installed so that the cutting direction is biaxial since the cutting will be done on the front side of the material, and the cutting condition deciding unit 5 Material.

The machining order determining unit 14 determines the cutting conditions based on the type of rotary tool, etc. (step 5IO), and the machining order determining unit 14 inputs the machining process order registered in the generative machining process registration unit 7 to the machining order data registration unit! For example, if the machining order data is in the order of rough machining process-finish machining process, the machining process is determined according to the machining order data registered in step 3 (step 511), as shown in FIG. The numerical control information creation section 8 creates numerical control information according to the machining steps generated in this manner and ends all processing.

In addition, although the above-mentioned embodiment explained the front processing of the material, it is also possible to deal with the case of side processing of the material or processing in which front processing and side processing are mixed.

(Effects of the Invention) As described above, according to the numerical control information creation device of the present invention,
Since the machining process can be automatically generated even for generative machining shapes that include shape elements with different surface roughness, even beginners can easily operate the data, reducing the time and effort required for data and human power to create numerical control information. It can be significantly reduced.

1...Data human resources department, 2...Creation processing shape memory department,
3... Cutting condition registration section, 4... Tool data registration section,
5... Cutting condition determining section, 6... Tool determining section, 7
... Generative machining process registration unit, 8... Numerical control information creation unit, 11... Generative machining process generation unit, 12... Machining shape determining unit, 13... Machining order data registration unit, 14.・・・
Processing order determining section.

Claims (1)

[Claims] 1. In a numerical control information creation device that generates a machining process based on the input generated machining shape and creates numerical control information, the shape element array that makes up the generated machining shape is roughened according to the surface roughness of each shape element. Means for dividing into a machining process only, a rough machining process, and a finishing machining process, and a finishing allowance is added to the shape element of the rough machining process as a preprocess of the finishing process to generate a new rough machining process shape element. and means for determining the order of the generated machining steps in accordance with a pre-registered machining order.