JPH04369006A - Device for forming numerical control information - Google Patents

Abstract

PURPOSE:To provide a numerical control information forming device capable of easily determining a working process required by an operator. CONSTITUTION:A minimum working inside diameter calculating part 12 calculates a minimum working inside diameter for an inside diameter turning tool previously registered in a tool data registering memory 8. A working process determining part 11 judges whether the turning tool interferes with a work or not based upon the minimum working inside diameter at the time of working an inside diameter working area by the turning tool. The determining part 11 automatically determines a working process using a drill or an end mill as to the inside diameter working area judged as an interference area, or as to an inside diameter working area judged as a no interference area, automatically determines a working process for dividing the working area into plural working areas and working respective areas.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a numerical control information creation device that automatically determines a machining process based on input material shape and machining shape.

0002

2. Description of the Related Art FIG. 6 is a block diagram showing an example of a conventional numerical control information creation device. In order to create numerical control information, an operator inputs the shape of a material drawn on a processing drawing by operating an input means 1. The dimension SLW and the dimension SLM of the machining shape are stored in the shape memory memory 2, the machining process determination parameter SDP is registered in the machining process determination parameter registration memory 5, and the tool data STD is registered in the tool data registration memory 8. The machining part recognition unit 3 obtains the material shape dimension SLW and the machining shape dimension SLM from the shape memory memory 2.
is read out and the entire processing area SAM is determined. The machining process determination unit 4 selects the entire machining area S from the machining part recognition unit 3.
AM is read out and machining process determination parameter registration memory 5
The type of machining process SPK, the order of machining processes SPS, and the machining range SPM of each machining process are determined according to the machining process determination parameters SDP read from the machining process table registration memory 6.

On the other hand, the tool determination section 7 reads out the type of machining process SPK and the machining range SPM of each machining process from the machining process chart registration memory 6, and selects the corresponding tool from among the tools registered in the tool data registration memory 8. The tool to be used is determined and its tool data STD, ie, the tool number STN and tool size S, are determined.
The TL is registered in the machining process chart registration memory 6. If the corresponding tool does not exist, the tool number STN and tool dimensions STL generated by the tool determining section 7 are registered in the machining process sheet registration memory 6.

On the other hand, the cutting condition determination unit 9 obtains the machining process type SPK and tool number STN from the machining process table registration memory 6.
and tool dimensions STL are read out, and cutting conditions SCM such as feed, cutting speed, and depth of cut are determined and registered in the machining process chart registration memory 6. Then, the numerical control information creation section 1
Numerical control information is created according to the machining process chart registered in the machining process chart registration memory 6 at 0.

An example of the operation of such a configuration will be explained with reference to the flowchart of FIG. For example, the operator inputs the dimensions of the material shape and the dimensions of the machined shape according to the machining drawing shown in FIG. 8, stores the data as shown in FIG. 9 in the shape memory memory 2, and determines the machining process as shown in FIG. Parameters and tool data as shown in FIG. 11 are input and registered in the machining process determination parameter registration memory 5 and tool data registration memory 8. Then, the machining part recognition unit 3 recognizes the entire machining area (P1, P2, P3,
P4, P8, P7) are determined. The processing process determining unit 4
From all processing areas (P1, P2, P3, P4, P8, P7), it is determined whether the material shape is a penetrating shape or a non-penetrating shape (step S1).

[0006] If the shape of the material is a through shape, step S5
However, in this case, since the shape is non-penetrating, a drilling process is required, so
The drill machining process is registered in the machining process type of the machining process table as shown in (step S2). Next, the drill diameter (9 mm) is calculated from the minimum inner diameter (11 mm) of the machining shape and the drill diameter determining parameter (1 mm) of the machining process determining parameter (step S3). Then, the drilling range is determined based on the drill diameter, and the processing range (P1
0, P9, P7, P8) are registered in the machining range of the machining process chart (step S4).

Next, the machining range (P1, P2, P3, P4
, P10, P9) can be rough-machined with an internal turning tool without interfering with the workpiece using the minimum machining inner diameter parameter (10 mm) of the internal turning tool of the machining process determination parameters (step S5). . Here, if rough machining is possible, the process proceeds to step S10, but in this case the machining range (
Since the minimum inner diameter of P1, P2, P3, P4, P10, P9) is 9 mm, rough machining with an internal turning tool is impossible, so register the rough end mill machining process in the machining process type of the machining process chart ( Step S6). Next, the rough end mill diameter (10.
8 mm) (step S7). Then, the rough end mill processing range is determined based on the rough end mill diameter, and the processing range (P12, P11, P9, P10) shown in Fig. 15 is determined.
is registered in the machining range of the machining process chart (step S8).

Next, it is checked whether all the rough machining has been completed (step S9), and if all the rough machining has been completed, the process proceeds to step S12, but in this case, since the rough machining has not been completed, the machining range (P15 , P14, P13, P12) can be rough-machined with an internal turning tool without interfering with the workpiece using the minimum machining inner diameter parameter (10 mm) of the internal turning tool of the machining process determination parameters (step S5). Processing range in this case (P15, P14, P13
Since the minimum inner diameter of
0). Next, Figure 1 shows the machining range of the rough internal turning process.
Processing range shown in 6 (P15, P14, P13, P12)
is registered in the machining range of the machining process chart (step S11)
.

[0009] Then, it is checked whether all the rough machining has been completed (step S9). In this case, since all the rough machining has been completed, the machining range (P4, P3, P2, P1,
P11, P13, P14, P15) can be finished with an internal turning tool without interfering with the workpiece by using the minimum machining inner diameter parameter (10 mm) of the internal turning tool in the machining process determination parameters ( Step S12). Here, if rough machining is not possible, the finish end mill machining process is registered in the machining process chart (step S13), the finishing end mill diameter is calculated (step S14), and the finishing end mill machining range is registered in the machining process chart (step S13). S15). However, in this case, the processing range (P4, P3, P2, P1, P
11, P13, P14, P15) the minimum inner diameter is 10.8
mm, finish machining with an internal turning tool is possible, and the finishing internal turning machining process is registered in the machining process type of the machining process table (step S17). Then, the machining range of the finishing inner diameter turning process (P4, P3, P2, P1, P1
1, P13, P14, P15) are registered in the machining range of the machining process chart (step S18). Next, it is checked whether all the finishing machining has been completed (step S16), and if the finishing machining is not completed, the process returns to step S12 and the above-mentioned operation is repeated, but in this case, since all the finishing machining has been completed, all Terminates the process.

Next, since the drill and rough end mill in the machining process chart are not registered in the tool data registration memory 8, the tool determining unit 7 generates the tool dimensions and tool numbers for them, and also generates the rough internal turning tool. Since the and finishing internal turning tools are registered in the tool data registration memory 8, a tool with a holder diameter that does not interfere with the workpiece is determined and registered as the tool to be used. In this case, the holder diameter is 6 mm (
A rough internal turning tool and a finishing internal turning tool with a minimum machining internal diameter of 8 mm are registered in the machining process chart.

[0011]

[Problems to be Solved by the Invention] In the conventional numerical control information creation device described above, the holder diameter is 6 mm (minimum machining diameter is 8 m).
Even though the rough internal turning tool m) is registered,
The machining range shown in Fig. 15 (P12, P11, P9, P10
) was decided to be machined with a rough end mill. That is, the processing range (P12, P11, P9, P10)
The minimum inner diameter of the holder is 9mm, and the registered holder diameter is 6mm.
Although it is possible to sufficiently machine the workpiece without interfering with it by using a rough internal turning tool of mm (minimum machining diameter 8mm),
The drawback was that the rough end milling process was automatically determined. Therefore, when the operator registers an internal turning tool in the tool data registration memory 8, it is necessary to register the minimum machining internal diameter corresponding to the holder diameter as the minimum machining internal diameter parameter of the internal cutting tool in the machining process determination parameter registration section 5. there were.

[0012] Furthermore, the machining range shown in Fig. 16 (P15, P
14, P13, P12) with only one internal turning tool with a holder diameter of 6 mm (minimum machining inner diameter of 8 mm). That is, the holder diameter is 6
mm (minimum machining inner diameter 8 mm), cutting conditions such as depth of cut and feed rate must be lowered, but the machining range (P15, P14) can be reduced with these low cutting conditions. , P13, P12), the machining is performed from a small diameter area to a large diameter area, which has the disadvantage of inefficient machining. Therefore,
The operator had to modify a machining range that was automatically determined to be machined with one internal turning tool so that it would be machined with multiple internal turning tools. The present invention was made in view of the above-mentioned circumstances, and an object of the present invention is to provide a numerical control information creation device that allows an operator to easily determine a desired machining process.

[0013]

[Means for Solving the Problems] The present invention relates to a numerical control information creation device that automatically determines a process for machining an inner diameter machining area recognized from an input material shape and a machining shape. The above object is to provide a calculation means for calculating each minimum machining inner diameter for one or more pre-registered internal turning tools, and a calculation means for calculating each minimum machining inner diameter for one or more pre-registered internal turning tools; Determine whether or not the internal turning tool interferes with the workpiece when machining with the tool, automatically determine a process to perform machining using a drill or end mill for the internal machining area determined to interfere, and determine that there will be no interference. This is achieved by comprising a determining means that automatically determines a step of dividing the inner diameter processing region into one or more processing regions and performing processing based on the minimum processing inner diameter calculated as described above.

[0014]

[Operation] In the present invention, the minimum machining inner diameter of each of one or more pre-registered internal turning tools is calculated, so the internal machining area can be controlled by the internal turning tool. It is possible to accurately determine whether or not the internal turning tool will interfere with the workpiece during machining, and the machining process using the optimal tool can be automatically determined.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing an example of a numerical control information generating apparatus according to the present invention, corresponding to FIG. Machining process determining section 1
In step 1, the entire machining area SAM is read out from the machining part recognition unit 3, and in accordance with the machining process determination parameter SDP read out from the machining process determination parameter registration memory 5, the internal turning tool IT is registered in the tool data registration memory 8. In this case, the type of machining process SPK, the order of machining processes SPS, and the machining range SPM of each machining process are determined using the minimum machining internal diameter ID calculated by the minimum machining internal diameter calculation unit 12, and are stored in the machining process chart registration memory 6. be registered.

An example of the operation of such a configuration will be explained with reference to the flowchart of FIG. For example, the operator inputs the dimensions of the material shape and the dimensions of the machined shape according to the processing drawing shown in FIG. 8, stores the data shown in FIG. 9 in the shape memory memory, and also inputs the processing process determination parameters shown in FIG. Then, tool data as shown in FIG. 11 is input and registered in the machining process determination parameter registration memory 5 and the tool data registration memory 8. Then, the machining part recognition unit 3 recognizes the entire machining area (P1, P2, P3, P
4, P8, P7). The processing process determining unit 11
From all processing areas (P1, P2, P3, P4, P8, P7), it is determined whether the material shape is a penetrating shape or a non-penetrating shape (step S1). If the material shape is a through shape, step S
Proceed to step 5, but in this case, since it is a non-penetrating shape, a drilling process is required, so
The drill machining process is registered in the machining process type of the machining process table as shown in (step S2). Next, the drill diameter (9 mm) is calculated from the minimum inner diameter (11 mm) of the machining shape and the drill diameter determining parameter (1 mm) of the machining process determining parameter (step S3). Then, the drilling range is determined based on the drill diameter, and the processing range (P1
0, P9, P7, P8) are registered in the machining range of the machining process chart (step S4).

Next, the registered machining range (P1, P2, P
3, P4, P10, P9) can be rough-machined with an internal turning tool without interfering with the workpiece (step S2).
1) If an internal turning tool is registered in the tool data registration memory 8, the minimum machining internal diameter calculated by the minimum machining internal diameter calculation unit 12 is used for determination. As shown in Fig. 11, when internal turning tools with holder diameters of 6 mm and 20 mm are registered, the minimum machining diameter is as shown in Fig. 5 according to the holder diameter - minimum machining internal diameter correspondence table shown in Fig. 4. Calculated. Therefore, the machining range (P1, P2, P3, P4
, P10, P9) is 9 mm, so rough machining is possible with an internal turning tool with a holder diameter of 6 mm (minimum machining internal diameter of 8 mm), and the rough internal turning process is registered in the machining process type in the machining process chart. (Step S22).

Next, the machining range of this rough internal turning process is registered in the machining process chart, but at that time, a tool with a holder diameter larger than the holder diameter of the tool used in this rough internal turning process is registered. (Step S)
23) If a tool with that holder diameter is not registered, the process advances to step S26. In this case, a tool with that holder diameter is registered, so using the minimum machining inner diameter of 26 mm (see Fig. 5) of the inner diameter turning tool with the next largest holder diameter of 20 mm compared to the holder diameter of the inner diameter turning tool used this time, Figure 17
Processing range shown in (P19, P18, P17, P16, P
9, P10) is determined and registered in the machining range of the machining process chart (step S24). Then, a rough internal turning process using an internal turning tool with a holder diameter of 20 mm is registered in the process type of the process table (step S25), and step S
Return to 23. This time, since internal turning tools with a holder diameter larger than 20 mm are not registered, the machining range shown in Fig. 18 (P21, P20, P18, P
19) in the machining range of the machining process chart (step S
26).

Next, it is checked whether all the rough machining has been completed (step S9), and if the rough machining has not been completed, the process returns to step S21 and the above-described operations are repeated. In this case, all rough machining has been completed, so the machining range (P4, P3,
P2, P1, P16, P17, P20, P21) can be finished with an internal turning tool without interfering with the workpiece (step S27), but the tool data registration memory 8
If an internal turning tool is registered in , the minimum machining inner diameter calculated by the minimum machining inner diameter calculation unit 12 is used for determination. As shown in Fig. 11, if a finishing internal turning tool with a holder diameter of 6 mm is registered, its minimum machining internal diameter is calculated as shown in Fig. 5 according to the holder diameter - minimum machining internal diameter correspondence table shown in Fig. 4. be done. Therefore, the machining range (P4
, P3, P2, P1, P16, P17, P20, P21
) is 10.8 mm, finishing with a finishing internal turning tool is possible, and the finishing internal turning process is registered in the processing process type of the processing process table (step S17).
), the machining range of the finishing inner diameter turning process is registered in the machining range of the machining process chart (step S18). Then, it is checked whether all finishing processing is completed (step S16).
), if the finishing machining is not completed, the process returns to step S27 and the above-described operations are repeated, but in this case, all the finishing machining is completed, so all processing ends.

Next, since the drill in the machining process chart is not registered in the tool data registration memory 8, the tool determining unit 7 generates the tool dimensions and tool number, and selects the rough internal turning tool and the finishing internal turning tool. Since the tools are registered in the tool data registration memory 8, the registered ones are determined and registered. By registering the internal turning tool in the tool data registration memory 8 in this manner, the minimum machining internal diameter calculated by the minimum machining internal diameter calculation unit 12 can be used to determine the internal machining process.

[0021]

As described above, according to the numerical control information creation device of the present invention, the operator can determine the desired machining process by simply registering the internal turning tool used in the tool data, thereby reducing the operator's man-hours. It is possible to significantly reduce the creation time of numerical control information.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an example of a numerical control information creation device of the present invention.

FIG. 2 is a flowchart illustrating an example of the operation of the apparatus of the present invention.

FIG. 3 is a diagram showing an example of a processing process chart used in the apparatus of the present invention.

FIG. 4 is a diagram showing an example of a holder diameter-minimum machining inner diameter correspondence table used in the apparatus of the present invention.

FIG. 5 is a diagram showing an example of calculating the minimum machining inner diameter used in the apparatus of the present invention.

FIG. 6 is a block diagram showing an example of a conventional numerical control information creation device.

FIG. 7 is a flowchart illustrating an example of the operation of a conventional device.

FIG. 8 is a diagram showing an example of a processing drawing.

FIG. 9 is a diagram showing an example of data of material shape and dimensions and processed shape and dimensions stored in a conventional device.

FIG. 10 is a diagram showing an example of machining process determination parameters used in the apparatus of the present invention and the conventional apparatus.

FIG. 11 is a diagram showing an example of tool data used in the device of the present invention and the conventional device.

FIG. 12 is a diagram showing an example of a processing process chart used in a conventional device.

FIG. 13 is a diagram showing an example of the total processing area determined by the apparatus of the present invention and the conventional apparatus.

FIG. 14 is a diagram showing an example of machining ranges registered in the apparatus of the present invention and the conventional apparatus.

FIG. 15 is a diagram showing a first example of a machining range registered in a conventional device.

FIG. 16 is a diagram showing a second example of a machining range registered in a conventional device.

FIG. 17 is a diagram showing a first example of a machining range registered in the apparatus of the present invention.

FIG. 18 is a diagram showing a second example of a machining range registered in the apparatus of the present invention.

[Explanation of symbols]

11 Processing process determination department 12 Minimum machining inner diameter calculation section

Claims (1)

[Claims] Claim 1: In a numerical control information creation device that automatically determines a process for machining an inner diameter machining area recognized from an input material shape and machining shape, one or more pre-registered inner diameter turning tools are used. a calculation means for calculating each minimum machining inner diameter, and determining whether or not the inner diameter turning tool interferes with the workpiece when machining the inner diameter machining area with the inner diameter turning tool, based on the calculated minimum machining inner diameter; automatically determines the process of machining using a drill or end mill for the inner diameter machining area that is determined to interfere, and one or more pieces are determined based on the minimum machining inner diameter calculated above for the inner diameter machining area that is determined not to interfere. 1. A numerical control information creation device comprising: a determining means for automatically determining a process to be processed by dividing the processing area into two processing areas.