JPS62222303A - Registering and editing system for automatic programming for nc - Google Patents

Abstract

PURPOSE:To shorten the program generation time by registering data, which can be preliminarily determined as standards, such as the work sequence and various work elements as standard data. CONSTITUTION:An interactive automatic programming system consists of a main control part 1, a keyboard 2, a work data editing means 3, a work data registering part 4, an input data storage part 6, a work program storage part 8, etc., and is provided with a graphic CRT 5. Technical data required for automatic determination of work conditions are preliminarily registered in a technical data registering part 6, and peculiar data such as the G code and the M code related to objective machine tools or the like are registered in a host processor data registering part 9. The main control part 1 generates an NC part program from input data in the input data storage part 6 based on data in the host processor data registering part 9 and is stored in the storage part 8. A series of these registering, storing, etc., are performed in the interactive form and are displayed on the CRT 5.

Description

[Detailed description of the invention] (3?!! IJII (7) Technical part! v?) Kinoto I
I+ relates to a programming method for creating a machining program using an automatic programming function in a numerically controlled machine tool or an automatic programming device for a numerically controlled machine tool, and in particular to a method for registering and editing a hole machining method.

(Technical background of the invention and its problems) With the development of numerically controlled machine tools (NO machine tools), a wide variety of processing has become possible. However, there are still many problems in terms of ease of use from the user's perspective, such as the ease of creating machining programs.

N using automatic programming system for NG machine tools
When creating a machining program for G, for many hole machining operations, the machining order or the machining dimensions for each machining process are determined. For example, consider the case of machining holes for passing hexagon socket head bolts shown in FIGS. 4(A) and 4(B). In this bolt hole machining, if the nominal dimensions of the bolt to be passed through and the machining depth of the hole are specified, the machining specifications other than the machining depth are determined according to this machining depth or are specified by the standard. This is the numerical value. Figure 4 (A) shows a process in which the head of the bolt slightly protrudes beyond the hole when a hexagon socket head bolt is inserted, and Figure 4 (B) shows a process in which the head of the bolt completely fits into the hole. For example, if the dimension is specified as M8, the diameter d of the bolt hole is 9.
The 0 layer and the counterbore system D'' are uniquely determined, such as the 14.0 layer.The counterbore depth is also H'- in the case of Fig. 4 (A).
It is possible to make a one-to-one correspondence to the nominal dimensions, such as a 7.4-layered dining table, or an H''-8, 8-layered dining table in the same figure (B).

However, according to conventional methods, there is no means to store these known data in the automatic programming device, or even if there is a means for storing it, it is not open to the user.
Changes to data are not allowed. Therefore, although it is supposed to be necessary to input only the nominal dimensions and machining depth of the tapped hole as described above, there is a problem in that dimensions related to all machining including the previous process must be input. In addition, the processing order of bolt holes for hexagon socket head bolts is as shown in Fig. 6 (A) to (D).
center drill.

The second step = drilling, the third step = counterbore, and the fourth step = chamfering, but this processing step order is universal and is frequently changed by the creator of the NG part program. It is not something that will be done.

However, when trying to define the above-mentioned hole machining in a conventional automatic programming system, in systems that do not have a function to automatically determine the machining order, the program creator must define the order of each process and machining specifications such as tool diameter and machining depth. had to be entered for the required number of processes each time. In addition, even in systems that have a function to automatically determine the processing order,
Although it is not necessary to input the order data of each process, it is necessary to input the processing specifications of each process. Furthermore, in a system having this automatic processing order determination function (automatic process expansion function), even if the program creator wanted to change the processing order or omit it in the process, it was impossible because there was no means to do so. For example, in the process sequence shown in Figures 6(A) to 6(D), an end mill is used in the third step in Figure 6(C), while another user uses a boring tool and then processes the process. If you want to standardize the process of chamfering the top and bottom surfaces of this counterbore process, as shown in @7 (A) to (E), the 3rd process = counterbore (using polling), and the 4th process = surface Take (using a drill), 5th
The process was chamfering (using a drill), but this could not be done because the automatic programming system's process development is fixed.

In addition, as shown in Figures 8 (A) to (C), we have taken measures to reduce the number of processes, that is, by changing the chamfering process or by combining the center drilling process and the chamfering process.
As a result, even if the intention was to shorten the machining time, the process development of the system was fixed and the process could only be developed in one way, making it impossible to implement such changes.

(Object of the Invention) The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to convert data such as processing order and processing specifications that can be determined in a standard manner in advance into standard data. Registration and registration in an automatic programming device that allows you to create machining programs with the minimum number of operating steps.
The purpose is to provide an editing method.

(Summary of the Invention) The present invention relates to a registration Φ editing method in automatic programming for NG that creates a machining program by setting machining data and machining conditions. There is a technical data registration section that stores standard processing data, and a processing data registration section that groups and summarizes standard processing data and names and registers each grouped intermediate level.
It has an input data storage section that stores input data for performing desired processing and processing data that is automatically determined internally, and stores data registered in the technical data registration section and processing data registration section, respectively. One input data can be applied to multiple processes, and a desired machining program can be created with fewer input procedures.

(Embodiment of the Invention) Fig. 1 shows an example of a block diagram of the configuration of an interactive automatic programming system to which the present invention is applied. Management and processing programs are generated, and interactive input data input from the keyboard 2 is stored in the input data storage section 6. In addition, the technical data necessary for automatic determination of machining conditions is registered in advance in the technical data registration section 7, and the post-processor data registration section 9 stores G codes, M codes, and tool exchange related to the target machine tools and HC devices. Unique data such as sequences are registered. Then, the main control unit l creates an NG part program based on the input data in the input data storage unit 6 and the data in the post-processor data registration unit 9, and stores the created NG part program in the machining program storage unit 8. . Further, standard processed data is registered in the processed data registration section 4, and editing such as new registration, modification, and deletion of this processed data is performed via the processed data editing means 3. These series of registrations,
Storing and the like can be performed interactively and displayed on a graphic CRT 5.

The operation of such a configuration will be explained with reference to the flowchart in FIG.

First, a machining surface angle is specified as interactive input data input from the keyboard 2 (step S1).
In this case, when creating an NG part program for a machine tool without an additional axis, inputting the machining surface angle data is unnecessary and specifying the 0th order machining (step S
2) Enter the type of machining such as hole machining, groove machining, and pocket machining, as well as the tools used, machining diameter, machining depth, etc. for each of the 4R processes for these machining. Based on this input data and the cutting data registered in advance in the technical data registration unit 7, the main control unit determines the optimum cutting speed and feed rate under the relevant conditions of tool material, tool diameter, and workpiece material.
To be determined. In addition, the technical data registration section 7 contains data regarding individual tools such as tool diameter, material, tool number, and application, as well as clearance amounts.

Data related to general engineering, such as the engineering J1 selection range, are registered.

The aspects of such machining designation will be explained with respect to hole machining for hexagon socket head bolts as shown in FIGS. 4 and 6 described above.

First, by entering the registered machining name of the hole machining concerned,
The desired machining method is specified (step 521), and the nominal dimensions and machining depth of the hole are inputted, for example, M8.25 layer 1 (step 522). ) The tool scale, tool diameter, machining depth, etc. to be used in each process constituting the hole machining up to the hole level are determined by the machining data registration unit 4. From these data and the data registered in the technical data registration unit 7, processing data such as cutting speed and feed rate for each individual process are automatically determined (step 523). If there is any missing data, it is added. You will have to input it. In this way, the designation of hole machining consisting of four steps is completed by inputting the minimum data of registered machining name, nominal dimensions, and machining depth.

After that, the machining shape is designated (step S3).
, for example, hole placement in hole machining.

Enter the number of pieces and the shape of pocket machining, etc., and repeat this for each required shape, machining, and machining surface angle (Step 5)
1-41113) When these data input steps are completed, the main control section 1 stores the data in the input data storage section 6 and the processed data registration section 4 in the post-processor data registration section IO.
A part program suitable for the desired NG machine tool is created based on the data (step S?). After that, a machining simulation of the NO program is performed according to the instructions of the program creator (step S9).
, check the tool trajectory, machining process, etc.

FIGS. 3(A) and 3(B) are block diagrams for explaining the contents of the processing data registration unit 4, in which data regarding standard processing or user-specific processing is registered in layer A structure. .In Fig. 3(A), under the processing name N1,
A plurality of nominal dimensions N3 can be defined according to the process development data N2, and a nominal dimension table as shown in FIG. 5, for example, is registered as the nominal dimensions 1 to Kn. Figure 3 (8) relates to machining that does not have a concept such as nominal dimensions, and under machining name N4, special machining data for each process according to process development data N5,
For example, users can now create their own processed data. Editing such as modifying, deleting, and changing the contents of these processing names M1 and 84 can be freely performed by the processing data editing means 3. In this way, the manufacturer of the automatic programming system or each user can refer to the pre-registered data at any time, so that the registered processing name, designation, etc. can be checked at the stage of interactively creating the NC part program. size.

By simply inputting minimal data such as machining depth, the program creator's desired machining process is automatically completed.

In this way, the conventional technology required complicated input procedures for machining order and machining specifications, but by simply inputting a predefined machining name, program creators can input machining order, machining process combinations, etc. We are now able to reflect our unique know-how in the MC part program.

(Effects of the Invention) As described above, according to the programming method of the present invention, it is possible to simplify the input operation when specifying machining, and to standardize machining specific to the user. In creating the program, the time required to create the program can be shortened, and programming errors such as incorrect data input can be reduced.

[Brief explanation of drawings]

Figure 1 is a block diagram of the configuration of an interactive automatic programming system to which the present invention is applied, Figure 2 is a flowchart showing the operation of the present invention, and Figures 3 (A) and (B) are standard processing and user information of the present invention. Hierarchical structure diagram showing unique processing, No. 4
Figures (A) and (B) are bolt hole machining diagrams, Figure 5 is a table showing examples of each dimension value for nominal dimensions, and Figures 6 (A) to (D
), FIGS. 7(A) to (E), and FIGS. 8(A) to (C) are process charts showing the processing order. l... Main M111 part, 2... Keyboard, 3...
Processed data editing means, 4... Processed data registration Q section, 5.
...Graphic CRT, 6...Input data storage section,
7... Technical data registration section, 8... Machining program storage section, 9... Post processor data registration section. f-plane L2 diagram (Al (A) 1 412 Figure 5 1. (A) <B) (C)
tD) (A) CB) CC>
(D) (E) Machining area = ttontadori J
shi tori) shi ” Eguri surface I (chamfer 141hi □ tsui 某^s (p; kudrill) () ゛su Jshi)
(Holymph'') (Drill)
(Drill) Figure 7 (A) (B)
(C>Chal smell i Ka2 slope!
3rd Drill and Chamfering Drill) 8th L

Claims (1)

[Claims] In automatic programming for NC machine tools, which sets machining data and machining conditions to create a machining program, there is a technical data registration section that registers the technical data necessary for determining machining conditions in advance, and a group of standard machining data. A processing data registration section that stores input data for performing desired processing and internally automatically determined processing data. A desired machining program is created from each data registered in each of the technical data registration section and the machining data registration section by allowing one input data to be applied to multiple processes and reducing input operation steps. A registration/editing method for automatic programming for NC, which is characterized in that: