JPH0746286B2 - NC command information creation device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an NC command information creation device capable of easily creating NC command information for causing an NC machine tool to perform a desired machining. Is.

[Conventional technology]

FIG. 5 is a block diagram showing a functional configuration of a conventional NC command information creating device. In this figure, 1 is a target shape,
Input device such as keyboard, tablet, mouse, function key, etc. to input processing method, approach path, etc.
2 is a machining path calculating means for calculating a machining path and a machining start point for machining a target shape from the data input from the input device 1, and 3 is an approach such as a tangential arc path specified at the starting point of the machining path. Approach path selecting means for selecting a path, 4 is a paper tape puncher for outputting all selected approach paths and subsequent processing paths,
It is a processing information output device such as a magnetic recording device and a connecting device to a control device of a machine tool.

The conventional NC command information creating apparatus is configured as described above, and its operation will be described based on the flowchart of FIG.

Information such as a processing target shape, a processing method, and an approach route is input to the input device 1 (step (1)). Here, the designation order and combination of the approach route with respect to the machining route are limited. Based on these input information, first,
A machining path and a machining start point are calculated (step (2)). In selecting the next approach route,
The process branches depending on the combination of the input approach routes (step (3)). In each of the branched processes, the approach route is selected based on the input information, the processing start point position, the processing start point connection information, and the like (step (4)). Finally, the selected approach path information and target shape processing information are output from the processing information output device 4 (step (5)).

Here, a supplementary description will be given of step (1) and step (4) in FIG.

The approach method designated in step (1) is, for example, a normal route (route b), a tangential route (route c), a tangential arc route (as shown in FIGS. 7A, 7B, and 7C). For example, the route d), and in the step (4), these route data are determined for the machining route (route g). Since the approach route determination process is branched in this way, only one of a plurality of approach routes can be selected as the approach route, and another approach route cannot be designated for the next approach route. .

[Problems to be solved by the invention]

In the conventional NC command information creation device as described above, since the order of designation and combination of approach routes is limited as described above, only the approach routes of a predetermined pattern can be automatically generated, and the machining accuracy and machining efficiency are improved. It could get worse. Further, when an approach route other than the pattern is generated, it is necessary to specify the machining route, and there is a problem that the input work is troublesome.

The present invention has been made to solve such a problem, and an object of the present invention is to obtain an NC command information creation device capable of designating approach paths without restriction in order or combination.

[Means for solving problems]

An NC command information creating device according to the present invention is an approach route storing means for internally storing information of an approach route to be input, approach route information and machining route calculating means stored in the approach route storing means. The approach route determining means determines each approach route in order from the machining start point toward the start point of the approach route based on the machining route calculated in (4).

[Action]

In the present invention, the approach route determination means moves from the machining start point to the start point of the approach route based on the approach route information stored in the approach route storage means and the machining route calculated by the machining route calculation means. Determine each approach route in sequence.

〔Example〕

FIG. 1 is a block diagram showing the functional arrangement of an embodiment of the NC command information creation device of the present invention. In this figure, the fifth
The same reference numerals as those in the figure indicate the same parts, 10 is an approach route storage means for storing information of the input approach route, 11
Is an approach route determining means for determining each approach route from the tangential information and the coordinate value information based on the stored approach route information.

FIG. 2 is a diagram showing the electrical connection of the embodiment shown in FIG. 1, and the CPU 12 and the storage device 13 for storing the processing program, input information and the like execute the respective functions shown in FIG.

Next, the operation will be described based on the flowchart of FIG.

The input process to the input device 1 and the processing route calculation process are the same as those of the conventional device (steps (11), (1
3)). For example, considering the case of the approach route as shown in FIG. 4, the input of the approach route in step (11) is in the following order.

z-axis descent (route a) Normal route to the route immediately after (route b) Tangent route to the route immediately after (route c) Circular arc route to the route immediately after (route d) Data buffer in the approach route storage means 10 in this order The input information of each approach route is stored in (step (12)). Next, after calculating the machining path (path g) in step (13), each approach path is determined by tracing back the data buffer. However, since the machining path (path g) is obtained in step (13), From this, the processing start point e and the tangent vector f at that point are obtained. That is, the end point of the last tangential arc path (path d) in the data buffer and the tangent vector f at the end point are obtained (step (14)). Here, for each approach route, the approach route at the preceding stage can be determined by previously providing information on the direction (left and right, etc.) to be connected to the route immediately after the approach route (step (15 )). Similarly, the data buffer is traced, and the tangential arc route (route d) immediately after the tangent route (route c) is already determined. Therefore, the end point of the tangent route (route c) or the tangent vector f at the end point is obtained (step (1
4)), the approach route is determined as in the case of the tangential arc route (route d) (step (15)). By repeating steps (14) and (15) up to the beginning of the data buffer in this way, all approach paths can be determined (step (16)). And finally, the processing information is output as in the conventional device (step (1
7)).

That is, from the above description, it can be seen that there is no restriction on the designation order or combination of approach paths.

〔The invention's effect〕

As described above, the present invention is calculated by the approach route storing means for serially storing the input approach route information therein, the approach route information stored in the approach route storing means, and the machining route calculating means. Based on the machining route, the approach route determining means for determining each approach route from the machining start point toward the approach route start point is provided. Unlike the selection method, complicated approach routes can be easily specified without restrictions, NC command information creation time can be shortened, and NC command information with high accuracy and efficiency can be easily obtained.

[Brief description of drawings]

FIG. 1 is a block diagram showing a functional configuration of an NC command information generating device of the present invention, FIG. 2 is a diagram showing electrical connection of the embodiment shown in FIG. 1, and FIG. 3 is shown in FIG. FIG. 4 is a flowchart showing an example of approach operation, FIG. 5 is a block diagram showing a functional configuration of a conventional NC command information creating apparatus, and FIG. 6 is a flowchart showing a conventional processing operation. FIG. 7 is a flow chart showing the conventional approach route. In the figure, 1 is an input device, 2 is a machining path calculating means, 4
Is a processing information output device, 10 is an approach route storage means, 11
Is an approach route determination means. The same reference numerals in each drawing indicate the same or corresponding parts.

Claims (1)

[Claims] Claims: 1. An NC command information creating device for creating NC command information necessary for processing a target shape, the device having a machining path calculating means for calculating a machining path based on input information,
An approach route storage means for internally storing the information of the approach route that is input without limitation in order or combination, information of the approach route stored in the approach route storage means, and calculation by the processing route calculation means. And an approach route means for determining each approach route from the machining start point toward the start point of the approach route based on the machining route.