JPH0622777B2 - Cutting condition setting device in automatic processing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention provides NC data of a production equipment machine (NC machine tool) for machining a workpiece from part drawing data and material drawing data by CAD (computer aided design) or the like. Automatically created,
Cutting condition setting device for automatic processing machine that sets cutting condition data by interactive processing and automatic processing with graphic output in the process of processing information creation of automatic processing machine for CAM (computer-assisted manufacturing) of consistent production system Regarding

[Conventional technology]

As a representative of flexible automated production systems, FMS is now in the practical stage. In the FMS, the computer operates the schedule plan, the machining / setup plan, the tool supply plan, etc. online. Regarding the structure of the machining information creation device that presents the CAD data corresponding to the upper level and downloads it to the FMS. , Is currently inconsistent, fixed, partial and fragmentary.

[Problems to be solved by the invention]

Most current CAD / CAM systems are fixed, partial and fragmented, and poorly consistent. Even if it is a series, it is lacking in system, lacks flexibility, and is not put to practical use. That is, it is an incomplete CAD / CAM system in which the one adapted to the production system incorporating the cutting technology has not been established yet. The machining information is not limited to the NC data necessary for the automatic operation of the NC machine tool. The determination of the concept and the processing method for processing the component is greatly reflected in the NC data created. In the current CAM, the main purpose is to automatically create the machining information of the parts already mounted on the NC machine tool, but it is not enough to consider the evaluation of the production method in FMS or the like. On the other hand, parts drawing data and material drawing data by CAD are merely processing information for obtaining the final result, and in order to create NC data by utilizing CAD information, the concept of processing (setting the machine to be used,
It is necessary to include information on cutting technology such as deciding the process procedure), machining method, arranging, combining and deciding parts on the pallet in an optimal way, so-called setup method.

The present invention has been proposed in view of the above circumstances,
It is an object of the present invention to provide a cutting condition setting device for an automatic processing machine that has flexibility and practicality that can be used as a part of a consistent and consistent processing information creation device required for FMS and the like.

[Means for solving problems]

In the present invention, a means for solving the above-mentioned problems is a cutting condition setting device for setting cutting conditions of processing in the process of creating processing data of an automatic processing machine from graphic information, which is a radial direction of a tool. And cutting condition reference data including cutting in the depth direction, machining content data for each tool including machining allowances in the radial and depth directions, tool data including cutting area and main cutting edge dimensions and their effective coefficient, cutting speed and A storage unit that stores various data related to the radial direction and the depth direction, such as machining condition data indicating the feed rate condition, work shape based on the graphic data, setup drawing data indicating strength, material, etc. Cutting speed according to each data in the memory,
By comparing the cutting condition processing unit that automatically determines the feed rate and the depth of cut, the determined depth and depth of cut, and the machining allowances in the radial and depth directions of the machining content data for each tool. A determination unit that determines whether or not the radial and depth depths of cut are modified, and if there is a correction based on this determination, the radial and depth depths of cut are calculated based on the cutting area and the main Comparing the calculation part that calculates the effective depth of cut of the tool used based on the cutting edge dimension and its effective coefficient with the comparison part that compares the calculated depth of cut in the radial and depth directions with the effective depth of cut of the tool used. A cutting condition setting device in an automatic processing machine, comprising: a correction setting unit that finally sets the cutting amount in the radial direction and the depth direction based on the result.

In the present specification, the cutting condition data means the main cutting speed (V1), the sub cutting speed (V2), the main feed speed (F1),
It is assumed that the relief feed rate (F2), the sub feed rate (F3), the punch feed rate (F4), the depth direction cut (T1), and the radial direction cut (D1).

[Action]

The present invention reads the cutting condition reference data, the processing content data for each tool, and the used tool data, and automatically determines the cutting condition data for each processing area.

Automatic determination of cutting speed, feed rate, and depth of cut is based on cutting condition reference data, tool code, finishing degree, tool diameter,
Search for the material that is suitable for the work material, and find each value by proportional distribution.

The present invention is characterized in that the depth of cut is corrected, but this makes full use of the cutting area of the tool to the fullest extent, making it possible to process a work that takes, for example, three times in two times, making it ideal for any tool. It is intended to do a lot of work, but in the past it was only to study the cutter diameter one-dimensionally, but also to examine it in the depth direction and try to make a comprehensive judgment from the viewpoint of the cutting area. It is a thing.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing an example of a cutting condition setting device in an automatic processing machine embodying the present invention. The device is suitable for being used as a part of a processing information creating device as shown in FIG. First, the processing information creation device will be described.

FIG. 2 is a block diagram showing an example of the processing information creation device,
It is roughly divided into four processing departments. First processing department 10
1 is called a machining design process, which inputs data of parts drawings and material drawings created by CAD, and creates machining drawings, material drawings, area drawings, process drawings and setup plan data for CAM. Second
The processing section 102 is called processing method processing, and inputs process charts and setup plan data, sets processing methods, sets tools, integrates tools, retrieves tools, and outputs data as a processing standard document. The third processing section 103 is called a setup drawing process, and it uses the setup plan, material drawing data, and data obtained by the processing method obtained in the processing design process.
The setup combination of multiple machined parts, the arrangement of jig parts, and the tool interference check are performed to create the setup drawing data. The fourth processing section 104 is called processing technology processing, and it uses processing plan data to set the processing sequence, processing area, processing conditions,
Determines cutting conditions and outputs data as work instructions. Then, the obtained data is converted into a part program by the processed data conversion process. Next, NC data is created from the part program by the NC data automatic creation device.

In FIG. 2, various processing data and commands are input / output to / from the CPU 1 from the keyboard with screen 2 via the input / output device 2a.

There are two types of drawing data input from the CAD device M, that is, part drawing data Ma designed as a product and material drawing data Mb of a part to be processed, and shape data and additional data are input for each.

As will be described in each step, the reference data file 3 stores various reference data serving as a reference when processing is performed by each processing unit. Machine data such as the machine name and specifications of the machine to be installed is used for the instrument data file 4, jig data for attaching and fixing the workpiece to the jig data file 5, and used for the tool data file 6. Tool data such as tool name and tool diameter, and cutting condition reference data
File 7 contains cutting condition reference data for determining cutting conditions.

Based on the component drawing data Ma and the material drawing data Mb created by the CAD device M, it is converted into data that can be processed as CAM data. Processing drawing data, material drawing data,
Area map data, process chart data and setup plan data are created (these process steps are called machining design) and processed.

The component drawing data is taken into the component drawing coordinate system setting processing unit 8 and the coordinate system of the component drawing is set. Four coordinate systems, that is, a component coordinate system, a machining surface coordinate system, a shape coordinate system, and a sectional coordinate system are set as the coordinate system of the component drawing.

The cross-sectional coordinate system is the shape coordinate system, the shape coordinate system is the machining surface coordinate system, the machining surface coordinate system is the component coordinate system, and each coordinate system is dependent on the component coordinate system and has conversion data and is related to each other. Are linked. On the basis of the four coordinate systems set by the component drawing coordinate system setting processing unit 8, the processing shape processing unit 9 aggregates the processing shapes into surface processing, groove processing, side surface processing / pocket processing, hole processing and step hole processing, respectively. Shape is classified. The processed shape data processed based on various coordinate systems is stored in the memory 18 as processed drawing data and output.

The material diagram data is taken into the material diagram coordinate system setting processing unit 10 and the coordinate system of the material diagram is set. The coordinate system setting for the material drawing is the same as the coordinate system setting for the component drawing. Based on the coordinate system set by the material diagram coordinate system setting processing unit 10, the material shape processing unit 11 changes the material shape to a surface, groove, side surface, pocket,
The shape of each of the hole and the step hole is classified and stored as material drawing data in the memory 19 and output.

The processing drawing data and the material drawing data are fetched by the processing area drawing processing unit 12 which synthesizes them. The processing drawing data 18 and the material drawing data 19 are combined to perform the area creation processing of the portion to be cut, and the area drawing correction processing unit 13 further performs the grinding allowance (G / W) or the precision finishing allowance. The area correction processing is performed and the processing area diagram data is stored in the memory 2.
It is stored in 0 and output.

The individual area map data is fetched by the processing area division processing unit 14 and the processing area is divided automatically by dividing the rough, medium and finishing areas into one step (using a plurality of machines for the same part). , Change the arrangement of parts on the pallet and the method of mounting and fixing when performing different processing (setup change)
The process is performed when the process is not performed), that is, when the rough / medium finishing process is divided into a plurality of processes. The machining area is divided, and the divided data and the machine data of the machine data file 4 are taken into the process chart processing unit 15, and the machine to be used is instructed. A process shape is created by collecting process shapes that can be automatically processed in a single process, which is a process of fixing the process, and is stored in the memory 21.

The process drawing data, the material drawing data and the jig data are fetched by the setup plan processing unit 16, and the jig base is selected to select the process drawing (area drawing data for each process), the material drawing (work), the jig part (stopper). , Tightening plates and bolts)
Is performed. Further, the tool interference check processing unit 17 displays and moves the machine origin and the tool to perform an interference check, and an appropriate arrangement of parts and jigs in one process and data of each shape and conversion data for connecting each coordinate system. To get The setup plan data is stored in the memory 22 and output.

The above processing is performed for each process of one part, and stored in the machining drawing data memory 18, the material drawing data memory 19, the area drawing data memory 20, the process drawing data memory 21 and the setup plan data memory 22. 1 for each data
It is filed in the work file (1) 54 for each step.

After that, the process is successively performed for each process, but the gate 56 is opened by the process end signal, and all the data stored in the work file (1) 54 are filed in the machining design file 59. When one part is finished, the process of the next part drawing is performed. By performing the above procedure for each part and for each process, the processing design process is performed.

Next, the processing of the processing method described in detail below is performed based on each data stored in the above-mentioned processing design file 59, the reference data, and the like.

The necessary data stored in the processing design file 59 and the necessary reference data stored in the reference data file 3 are taken into the processing method-specific area processing unit 23 and the six processing methods (face, groove, hole). , Step holes, pockets, side surfaces) are divided into regions for each processing method, and area data for each processing method is stored in the memory 30 and output. The area processing for each processing method is performed on the basis of reference data such as the priority instruction of the processing method and the discrimination data to be applied in the processing method.

The area data for each processing method is taken into the processing content processing unit 24 for each processing method together with necessary reference data, and processing content data such as processing diameter and processing depth is processed and created for each processing content. The data is stored in the memory 31 and output. The reference data includes data for determining a machining method code, data for a tool diameter and a tool length for each tool code, data for determining a finishing degree, data for determining a tool code, and the like.

The area data for each machining method stored in the area data memory 30 for each machining method, the machining content data for each machining method and the necessary reference data stored in the machining content data for each machining method memory 31 are the area processing for each tool. It is taken into the part 25 and the tool code (face mill cutter, end mill cutter, etc.) for the machining method is set, and rough /
The area data for each tool is created by performing a dividing process such as medium / finishing, and is stored in the memory 32 and output. The area data for each tool sets the processing area for each tool code based on the division description data for rough / finishing or rough / medium / finishing. The area data for each tool is taken into the processing content processing unit 26 for each tool together with the necessary reference data, and the processing diameter and processing depth for each tool code (face mill cutter, end mill cutter, etc.) are processed, and the processing content data for each tool Is stored in the memory 33 and output. The reference data is setting data such as a tool diameter and a tool length for each tool.

The machining content data for each tool and the necessary reference data are fetched by the integrated instruction processing unit 27 and are created by processing so as to integrate and instruct the common area that can be cut with the same tool from the area for each tool. The integration instruction data is stored in the memory 34 and output. As the reference data, a machinable depth and the like are prepared in a memory table for each tool code. In addition, the range of tool diameter and tool width is set for each rough / medium / finishing process.

Processing content data for each tool, integration instruction data, tool data
The tool data, machine data, and necessary reference data stored in the file 6 are fetched by the tool search processing unit 28, and a tool search is performed to determine a tool to be used. The created tool data is stored in the tool data memory 35 and output.

Area data memory 30 for each machining method, machining content data memory 31 for each machining method, area data memory 3 for each tool
2. Based on the data stored in the machining content data memory 33 for each tool and the integrated instruction data memory 34, the machining standard creation processing unit 29 takes in the data, and the tool diameter, finishing degree, machining surface, etc. for each tool. A processing standard document for displaying a list of the processing contents of is processed, and the processing standard document output data is stored in the memory 36 and output.

The output data stored in these memories 30 to 36 is 1
Files are stored in the work file (2) 55 for each process of parts. When processing for each process is performed and machining standard data for the part is created, the end signal for each part opens the gate 58, and each data filed in the work file (2) 55 is stored in the machining method file 60. Filed. 1
When the process of each part is completed, the data of the next part is input from the CAD device M, and the processes of the first processing department 101 and the second processing department 102 are repeated. next,
Based on the machining design file 59 and the machining method file 60, a setup drawing process and a machining technique process described in detail below are performed.

Setup plan data filed in the machining design file 59, required reference data filed in the reference data file 3, jig data filed in the jig data file 5, and tool data file 6 The tool data and the respective data stored in the machining method file 60 are fetched by the setup combination processing unit 37, and the setup combination is made by arranging a plurality of parts based on the connection of each stranding system, and the arrangement of jig parts. And a process for performing a tool interference check is performed. Further, in the priority instruction processing unit 38, priority is given to parts, machining surfaces, and tools, and processing for controlling the machining sequence is performed according to the priority instruction, and the setup drawing data is stored in the memory 44 and output.

The setup drawing data stored in the setup drawing data memory 44 is filed one by one in the work file (3) 61. The gate 62 opens according to the end signal for each setup drawing, and the setup drawing data is filed in the setup drawing and processing technology file 63. The set-up drawing data, the machining content data for each tool, and the necessary reference data are taken into the machining order processing unit 39 for each tool, and the processing order for each tool is determined based on the machining order determination table according to the priority instruction. The processing order data is stored in the memory 45 and output.

Necessary reference data, tool-specific area data, tool-specific processing content data, and used tool data are taken into the processing area processing unit 40, and surface processing areas are integrated, that is, the same processing surface among the processing areas of each tool is the same. Integration is performed when there are multiple surface machining with tools. Machining division of groove, side surface, side surface of pocket machining, bottom surface, etc. That is, the machining area for each determined tool is divided according to the reference data when the machining is performed multiple times, and the final machining area Is processed and the processed area data is stored in the memory 46.

The reference data is the bottom margin for one depth direction cut,
The amount of radial shift of the side surface and the amount of radial shift of the pocket for each tool. Required reference data, machining area data,
The machining content data for each tool and the tool data are taken into the machining condition processing unit 41, and the type of movement (straight line, arc, cycle of drilling, etc.), movement parameters (cutting direction, cutting radius, relief amount, etc.), Processing conditions such as clearance (estimation of fast-forward allowance) and presence / absence of coolant are determined, and the processing condition data is stored in the memory 47. Cutting condition reference data with cutting condition table in which tool code, finish degree, depth direction cutting, radial direction cutting, cutting speed by material, feed rate are set, machining content data for each tool, tool data, setup drawing data and machining The condition data is fetched by the cutting condition processing unit 42, processing for determining cutting conditions such as cutting, cutting speed, and feed speed is performed, and the cutting condition data is stored in the cutting condition data memory 48.

The machining order data for each tool, the machining condition data, the cutting condition data, the tool data, and the machining content data for each tool are fetched by the work instruction document creation processing unit 43, and the tool data, the rotation speed, and the machining data for each machining order as shown in FIG. The process of displaying the work instruction list such as the feed speed and the machining surface is performed, and the work instruction output data is stored in the memory 49 and output and displayed.
Each data stored in the memories 44 to 49 is filed in the work file (3) 61 one by one.

The setup drawing processing and processing technology processing are performed, and the gate 62 is opened by the processing technology end signal for each setup drawing, and each data filed in the work file (3) 61 is set up
It is filed in the processing technology file 63.

The reference data necessary for converting the part program, the processing method file 60, the setup data, each data stored in the processing technology file 63, and the machine data are taken into the processing data conversion processing unit 50 and converted into the part program. The converted data is stored in the memory 51. The converted data is taken into the automatic NC data creating device 52 to create an NC program, and is output as an NC tape 53 for machining of a designated machine. Further, the NC program data is filed in the NC data file 64.

The cutting condition setting device according to the present invention mainly relates to the cutting condition processing unit 42 in the above-described processing information creating device, but it goes without saying that it is not necessarily limited thereto.

FIG. 1 is a block diagram showing an example of a cutting condition setting device according to the present invention. In FIG. 1, the cutting condition setting device includes a CPU 1 which also functions as a central processing unit of a host device, a display 2 with a keyboard and its input / output port 2a.
And the graphic data and various data having a relationship in the radial direction and the depth direction thereof are processed based on the cutting condition reference data,
A cutting condition processing unit 42 for setting cutting conditions, a cutting condition data memory 48 for storing the set condition data,
A storage unit 71 that stores cutting condition reference data, machining content data for each tool, used tool data, machining condition data, and setup drawing data, the determined cutting depth in the radial direction and the depth direction, and the machining content data for each tool. Of the cutting amount in the radial direction and the depth direction by comparing with the cutting allowance in the radial direction and the depth direction, and if there is a correction by this determination, based on the cutting area. A calculating unit 73 that calculates the cutting amount in the radial direction and the depth direction and calculates the effective cutting amount of the tool to be used based on the main cutting edge dimension and its effective coefficient, and the calculated cutting amount in the radial direction and the depth direction. Of the cutting amount in the radial direction and the depth direction based on the comparison result, and the correction setting unit 7 for finally setting the cutting amount in the radial direction and the depth direction based on the comparison result.
5, and is roughly configured. In the figure, 81 to 85 are registers for temporarily storing data.

The determination unit 72 includes an automatic correction determination unit 72a, a radial direction determination unit 72b, and a depth direction determination unit 72c that determine whether automatic correction itself is possible.

The computing unit 73 includes two computing units in the radial direction and two computing units in the depth direction. The details will be described later in the description of the operation.

The comparison part 74 includes the depth direction comparison part 74 a and the radial direction comparison part 7.
4b and.

The correction setting unit 75 also includes four correction setting units 75a to 75d, the details of which will be described later in the description of the operation.

FIG. 3 is an operation procedure diagram of the above apparatus, and FIG. 4 is a flowchart showing a part of the operation in detail. In FIG. 3, when the procedure is started, first, the cutting condition reference data is input from the storage unit 71 to the cutting condition processing unit 42 as the first step, and then the other data in the storage unit 71 is also cut as the second step. Input to the condition processing unit 42.

The contents of the storage unit 71 include the cutting condition reference data memory 3, the tool-based machining content data memory 33, the tool data memory 35, and the machining condition data described in FIG.
These are the contents of the memory 47 and the setup drawing data memory 44.

FIG. 5 is an output diagram showing the contents of the cutting condition reference data memory 3, and FIG. 6 is the machining contents data memory 3 for each tool.
3 is an output diagram showing the contents of FIG. 3, FIG. 7 is an output diagram showing the contents of the tool data memory 35 used and its explanatory diagram, and FIG. 8 is an output diagram showing the contents of the machining condition data memory 47. is there. FIGS. 9A to 9C are explanatory diagrams that graphically show the black scale and the processed clearance of the processing condition data and also show the conditions of the cutting speed and the feed speed. The contents of the set-up drawing data memory 44 are based on the graphic data, and the shape, strength and material of the work are set as coefficients.

The steps from the first step to the second step are automatic determination of the cutting speed, the feed speed, and the cutting depth, and in the cutting condition processing unit 42,
From the cutting condition reference data, a tool code, a finishing degree, a tool diameter, and a material suitable for the work material are searched, and the respective values are obtained by proportional distribution. If the finishing degree does not match, it should be close to it. Main cutting speed (V1), main feed speed (F1), or depth direction cutting (T1) and radial direction cutting (D1) and main cutting speed except when each cutting condition data is set prior to the tool data. Sub-cutting speed (V2), main feed speed (F) for cutting speed (V1)
The sub-feed speeds (F2, F3, F4) for 1) are subjected to coefficient processing, and are automatically determined based on the cutting condition reference data.

The second step of the procedure is to determine whether or not the depth / diameter cut amount is appropriate from the various data determined above and correct it to an appropriate amount. 1 and the flow chart of FIG. 4 will be described in more detail.

The present invention is characterized in that the depth of cut is corrected. This is intended to find a diameter and a depth that effectively utilize the cutting area of the tool. Now, before the flow of FIG. 4 starts, the five registers 81 of FIG.
The following data are reserved in ~ 85. The first register 81 holds a radial notch (D1) and a depth notch (T1) to be studied, which are input from the cutting condition data 48. However, its source comes from the tool data used. A radial machining allowance (Do) and a depth machining allowance (To) are held in the second register 82, which is input from the machining content data for each tool. The cutting area M1 is reserved in the third register 83, the main cutting edge width DL and the main cutting edge length TL are reserved in the fourth register 84, and the effective coefficients Cd and CL are stored in the fifth register 85. Although they are held, they are all input from the tool data used.

In the flow of FIG. 4, first, the automatic correction determination unit 72a determines whether or not the cutting area M1 is designated, and if there is not, sends a signal indicating that the correction is impossible to the setting unit 76. The setting unit 76 returns the radial cut (D1) and the depth cut (T1) retained in the first register 81 to the cutting condition data memory 48 as they are, and sets the cut set values D and T without correction.

Next, a radial cut (D) of the tool shown in FIG.
1) and the depth direction notch (T1) are shown in FIG. 10 (b).
Compared to the radial machining allowance (Do) and the depth direction cutting (To) in the machining area shown in (4), if the tool side is not too large, the uncorrectable signal is also sent to the setting unit 76. As described above, the setting unit 76 returns the radial cut (D1) and the depth cut (T1) to the cutting condition data memory 48 as they are. If the tool side is too large, a signal indicating that the examination is possible is output, and examination is made in each of the radial direction and the depth direction.

The examination signal first activates the radial direction determination unit 72b, compares the radial cut (D1) and the radial machining allowance (Do), and outputs a correction signal to the calculation unit 73 if the tool side is large, and the tool side is large. If there is no output. Further, the examination signal is output to the depth direction determination unit 72c, and the depth direction determination unit 72c compares the depth direction cut (T1) with the depth direction machining allowance (To). It is output to the calculation unit 73, and is not output unless the tool side is large. Therefore,
The correction signal is sent to the depth direction calculation unit 73a or the radial direction calculation unit 73.
It is output to either c.

The correction signal output from the radial direction determination unit 72b is input to the first depth direction calculation unit 73a, and the virtual depth direction cut value Ta shown in FIG. 11 is calculated as Ta = M1 / Do. On the other hand, the effective depth direction cut Tb is calculated by Tb = TL × CL. CL is set as 0.8 as an effective coefficient for the main cutting edge length TL. These are compared by the depth direction comparison unit 74a, and if the virtual value is not larger than the effective value, the first correction setting unit 75a sets this virtual depth direction cut value Ta as the depth direction cut determination value T. , The radial machining allowance Do is set as the radial cut determination value D. When the virtual value is larger than the effective value, the first radial direction calculation unit 73b is activated, and the effective depth direction cut T
The radial cut value Db by b is calculated as Db = M1 / Tb, and the second correction setting unit 75b sets this Db as the radial cut determination value D, and the effective depth direction cut value Tb is the depth. The direction cut determination value T is set.

The correction signal output from the depth direction determination unit 72c is input to the second radial direction calculation unit 73c, and the virtual radial cut value Da shown in FIG. 12 is calculated as Da = M1 / To. On the other hand, the effective depth direction cut Db is calculated by Db = DL × Cd. Cd is set as an effective coefficient for the main cutting edge width DL, for example, 0.8. These are compared in the radial direction comparison unit 74b, and if the virtual value is not larger than the effective value, the third correction setting unit 75c sets this virtual radial direction cut value Da as the radial direction cut determination value D, and the depth is determined. The direction allowance To is set as the depth direction cut determination value D. When the virtual value is larger than the effective value, the second depth direction computing unit 73d is activated, and the depth direction cutting value Tb by the effective radial direction cutting Db is calculated as Tb = M1 / Db, and the fourth value is calculated. The correction setting unit 75d sets this Tb as the depth direction cut determination value T, and sets the effective radial direction cut value Db as the radial direction cut determination value D.

The cutting condition data will naturally be rewritten according to the set value. FIG. 13 is an output sample diagram of the determined cutting condition data.

The second step of the procedure is the work strength coefficient processing, in which the cutting speed and cutting depth are multiplied by the coefficients already entered in the setup drawing. Make sure that the screw feed rate (tapping) and depth of cut are not affected.

As described above, according to the present embodiment, a) the cutting speed is main and sub, the feed rate is main, escape, sub and punch-through, and the cut is divided into the depth direction and the radial direction, so that the change of the machining area is accurately performed. It is possible to determine the cutting condition data captured in step b)) The content of the tool data used is given priority, and when not registered, it is automatically determined from the cutting condition reference data, and the correction in the interactive process is determined as the tool data used. It is possible to perform the cutting condition reference data that has already been used. Ideal cutting is possible because the amount of cutting in each direction is determined according to the above. D) By performing coefficient processing based on the work strength, it is possible to correct the overall cutting condition data.

〔The invention's effect〕

As described above, according to the present invention, the cutting conditions, which have been conventionally only performed from the tool side, are examined from both sides of the tool and the work from the viewpoint of incorporating machining technology, and particularly the cutting area is efficiently processed. By doing so, waste of processing time and unnecessary work can be saved, processing efficiency can be improved, and good finishing can be achieved by simplifying the process, making the tool ideal work,
It is possible to provide a cutting condition setting device for an automatic processing machine, which has flexibility in processing and has a wide range of processing.

[Brief description of drawings]

FIG. 1 is a block diagram showing an example of a cutting condition setting device embodying the present invention, FIG. 2 is a block diagram of a machining information creating device suitable for embodying the present invention, and FIGS. 3 and 4 are the embodiments described above. 5 to 9 are output data sample diagrams of memory data, FIGS. 10 to 12 are explanatory diagrams of correction processing of depth / radial depth of cut, and FIG. 13 is cutting condition data. It is an output sample figure of. 1; Central processing unit (CPU), 2; Display with keyboard, 42; Cutting condition processing unit, 48; Cutting condition data memory, 71; Storage unit, 72; Judgment unit, 73; Arithmetic unit, 74; Comparison unit, 75: correction setting unit, 76; setting unit, 81 to 85; register. TL: main cutting edge length, T1: depth direction cutting, To: depth direction cutting allowance, DL: main cutting edge width, D1: radial cutting, Do: radial cutting allowance, M1; cutting area.

Claims (1)

[Claims] 1. A machining information creation system in an automatic machining machine for automatically creating NC machining data for computer-assisted production from drawing data drawn with the aid of a computer. A cutting condition setting device that sets cutting conditions for machining in the process of creating data, including cutting condition reference data including cutting in the radial direction and depth direction of the tool, and cutting allowances in the radial direction and the depth direction. It shows the machining content data for each tool, tool data including cutting area and main cutting edge dimensions and its effective coefficient, machining condition data indicating the conditions of cutting speed and feed rate, and the shape, strength and material of the work based on the figure data. A storage unit that stores various data related to the radial direction and the depth direction, such as set-up drawing data, and the cutting speed according to each data of this storage unit. The cutting condition processing unit that automatically determines the feed rate and depth of cut, compares the determined depth of cut in the radial and depth directions, and the machining allowance in the radial and depth directions of the machining content data for each tool. And a determination unit that determines whether or not the radial and depth depths of cut are corrected, and if there is a correction by this determination, the radial and depth depths of cut are calculated based on the cutting area and A calculation unit that calculates the effective depth of cut of the tool used based on the main cutting edge dimension and its effective coefficient, and a comparison unit that compares the calculated depth of cut in the radial and depth directions with the effective depth of cut of the tool used, A cutting condition setting device in an automatic processing machine, comprising: a correction setting unit that finally sets the cutting amount in the radial direction and the depth direction based on a comparison result.