JPH044404A - Numerical control information generator - Google Patents

Abstract

PURPOSE:To decide the propriety of simultaneous working with approximation to reality by deciding the propriety on the basis of process shape element range data. CONSTITUTION:The section for storing information of possible simultaneous working combination of the conventional numerical control information generator is eliminated from this numerical control information preparing device, but a section 11 for storing process shape element range data which inputs and stores process shape element range data indicating that which part of shape elements constituting a post-working shape overlaps with worked shape of each working process is provided. In addition, a function which generates not only working process data SD on the basis of a post-working shape SB and pre-working shape SC, but also the data SK, is given to a working process generating section 5. Regarding a section 8 for deciding the propriety of simultaneous working, moreover, its processing system is changed so that the section 8 can decide the propriety of simultaneous working on the basis of the data SK in addition to the data SD. Therefore, the propriety of simultaneous working can be decided easily with approximation to reality.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention creates numerical control information for controlling a numerically controlled lathe that has two turrets and can perform machining simultaneously with these two turrets. Therefore, the present invention relates to a numerical control information creation device that inputs the shape of a workpiece after processing and creates numerical control information from the shape of the workpiece after processing.

(Prior art) When machining is performed using a numerically controlled lathe that has two turrets and can perform two processes at the same time, it is important to know whether the machining is to be performed simultaneously or the machining processes do not interfere with each other. Tena i-1 rare wa nozaranai. Therefore, a numerical control information creation device that creates numerical control information to control a numerical control lathe that has two tool posts and can perform two processes at the same time with these two tool posts determines the machining order for simultaneous machining. Before processing, it is necessary to determine whether simultaneous processing is possible. Conventional numerical control information creation devices have simultaneous machining combination information, which is information indicating combinations of machining process types that are possible for simultaneous machining, in the numerical control information creation device, and when determining whether simultaneous machining is possible. It was determined by hand whether there was a combination that corresponded to the combination information that could be processed simultaneously.

FIG. 12 is a block diagram showing the functions of a conventional numerical control information creation device.

Such a conventional numerical control information creation device includes a data input device 1 for inputting data from the outside, a shape data field inputted from the data input device 1 by controlling the data input device 1,
The data input section 2 inputs the after-processing shape SB and the pre-processing shape SC into the post-processing shape SC, and the post-processing shape s from the data input section 2
A post-machining shape storage section 3 that inputs and stores n, a pre-machining shape storage section 4 that inputs and stores the pre-machining shape SC from the data input section 2, and machining data stored in the post-machining shape storage section 3. While inputting the rear shape 511 and the pre-machining shape SC stored in the pre-machining shape storage section 4, a simultaneous machining possibility determination command SR is output to the machining possibility determination section 8 of the same machine 43, and is returned in line with this. 1], 1 machining possibility determination information SJ is input, and a machining process generation unit 5 generates machining process data SD and machining order data SF based on these after-machining shape SO9 pre-machining shape SC1 simultaneous machining possibility determination information SJ; , a machining process data storage unit 6 that inputs and stores the machining process data SD generated by the machining process generator 5, and a machining sequence data storage unit that inputs and stores the machining sequence data SE generated by the machining process generator 5. 7, and a numerical control information generation unit that generates and outputs numerical control information SG based on the machining process data SD stored in the machining process data storage unit 6 and the machining sequence data SE stored in the machining sequence data storage unit 7. 9 and
Same 1 shows the combination of processing process types that can be processed simultaneously.
! [When inputting the simultaneous machining possible combination information storage unit 1O storing the cutting possible combination information SK and the simultaneous machining possibility determination command S++ from the machining process generation unit 5, the machining process stored in the machining process data storage unit 6 is inputted. It is configured as a simultaneous machining possibility determining section 8 which inputs the data SD and the simultaneously machinable combination information SK stored in the simultaneously machinable combination information 10, and outputs the simultaneous machining capability determination information SJ based on them.

Conventional numerical control information creation devices with such a configuration determine whether or not simultaneous machining is possible based only on machining process data. Conversely, even if simultaneous processing was possible, it was sometimes determined that it was not possible.

FIG. 13 is a flowchart 1~ showing an example of the operation of the simultaneous machining possibility determination section 8 of the conventional numerical control information creation device.

11.5 The machining possibility determination unit 8 first uses machining process data S to be determined in order to obtain the machining type of the machining process to be determined.
D is obtained (step S7). Next, after checking the simultaneous machining combination information SK (step S8), it is determined whether the machining type combination of the machining process to be determined is included in the simultaneous machining combination information SH (step S8). Step 59). The combination of machining types of the machining process to be judged is a combination that can be processed simultaneously ti! If it is in the J report SK, it means that simultaneous machining is possible, and the simultaneous machining possibility determination information SJ is output as simultaneous machining is possible, and the process ends (step sho). In addition, 'simultaneous machining is impossible unless the machining type combination of the machining process to be determined is included in the simultaneous machining possible combination information SH, and the process outputs the simultaneous machining possibility determination information SJ as simultaneous machining is not possible and ends the process. (Step 511).

FIG. 14 shows the simultaneous processing possible items stored in the simultaneous processing possible combination information storage unit 10! This is an example of i11 matching information. In addition, Fig. 15 shows an example of the types and order of machining processes included in the numerical control information output from a conventional numerical control information creation device, and Fig. 16 shows the machining shape for each process. , FIG. 17, and FIG. 18 show the state of the processing. In this machining example, in the first step, the rough end surface ↓ is machined as the machining of the B turret, and then in the second step, the CC rough surface is machined as the machining of the A turret. . Therefore, in this case, simultaneous processing is not performed. This is because the simultaneous machinable combination information shown in FIG. 14 only includes combinations of rough end faces ↓. However, as can be seen from the machining shape for each step shown in Figure 16 and the machining state shown in Figure 17, there is no possibility of interference occurring even if these machining operations are performed at the same time. Even though it is useful for shortening machining time, the machining order is decided so that it is machined individually. On the other hand, in the third step, the rough outer diameter (longitudinal) is machined simultaneously by the A tool rest and the B tool rest. This is because the simultaneous machinable combination information shown in FIG. 14 includes a combination of rough outer diameter and long length. However, as can be seen from the machining shape for each step shown in FIG. 16 and the machining state shown in FIG. 18, the third step A: It is necessary to complete the machining of the rough outer diameter of the turret, and even though it is impossible to process them at the same time, we will perform the machining at the same time. .

FIG. 19 is also an example, without showing the types and order of machining steps included in the numerical control information output by the conventional numerical control information creation device, and FIG. 20 shows the machining shape for each step, and The figure shows the process. In this machining example, the first machining)? The A tool rest is used to perform rough outer diameter longitudinal machining, while the B tool rest is used to perform trill machining. This is because the simultaneous machining combination information shown in FIG. 14 includes a combination of rough outer diameter (longitudinal length) and trill. However, as can be seen from the machining shape for each step shown in Fig. 20 and the machining state shown in Fig. 21, in the first step, the rough outer diameter of the A tool rest, and in the first step, the B tool rest. With trill machining, there is a very high possibility that the tools will come into contact with each other, and it is impossible to perform trill machining with the same 0 and ν. but,
In conventional numerical control information generation devices, the order of machining is determined based on the assumption that the items are to be machined at the same time.

(Problems to be Solved by the Invention) When determining whether or not simultaneous machining is possible, the simultaneous machining determination unit 8 of the conventional numerical control information creation device determines whether or not the combination of machining types in the machining process data SD is simultaneous. Whether or not simultaneous machining is possible is determined only by whether or not it exists in the machining combination information SK. For this reason, even if simultaneous machining is actually possible, it is determined that simultaneous machining is not possible, resulting in the generation of inefficient numerical control information. This could result in the generation of unsafe numerical control information.

The present invention was made in view of the above-mentioned circumstances, and an object of the present invention is to solve the above-mentioned problems and provide a numerical control information creation device that can more accurately determine whether or not simultaneous machining is possible. .

(Means for Solving the Problems) The present invention has two turrets, and in order to create numerical control information for controlling a numerically controlled lathe that can perform machining at the same time with the two turrets, after machining, This invention relates to a numerical control information creation device that inputs the shape of a workpiece and creates numerical control information from the shape of the workpiece after processing. The part and weight of the shape elements that make up the shape of the workpiece after processing 2
, process shape element range data indicating whether to perform each of the above-mentioned processing]
This is achieved by providing a function for each process and determining whether or not simultaneous machining is possible based on the process shape element range data number.

(Function) In the present invention, in order to solve the problems of conventional numerical control information generation devices, the simultaneous machining possible combination information storage section is removed, while the machining process generation section or the machining shape input for each machining process is Create process shape element range data indicating which part of the shape elements constituting the shape of the workpiece overlaps, and create a process shape element range data storage unit that stores this process shape element range data for each machining process. The simultaneous machining capability determination unit determines whether or not simultaneous machining is possible based on the process shape element ii@surrounding data stored for each machining process. It is possible to easily create efficient and safe numerical control information without determining that machining is impossible or determining that simultaneous machining is possible even if simultaneous machining is impossible.

(Embodiment) FIG. 1 is a block diagram showing an embodiment of the numerical control information creation device of the present invention, and the same components as the conventional numerical control information creation device in FIG. The explanation will be omitted.

The numerical control information creation device of the present invention eliminates the simultaneous machining possible combination information storage unit 10 that the conventional numerical control information creation device had, and at the same time, the processing shape of each processing step or the shape constituting the post-processing shape A process shape element range data storage unit 11 is provided i-J for inputting and storing process shape element range data SO indicating whether the part overlaps with the part of the element. A function is added to generate the process shape element range data SK at the same time as the process data SD is generated based on the pre-process shape SC.
In addition to D, it is determined whether simultaneous machining is possible based on process shape element range data SH. J: This is realized by changing the sea urchin processing method.

FIG. 2 is a flowchart showing an example of the operation of the simultaneous saw 11 workability determination unit 8 of the present invention.

The simultaneous machining possibility determining unit 8 first obtains the process shape element range data SK of the machining process to be determined from the process shape element range data storage unit 11 (step Sl), and then obtains the process shape element range data SK of the machining process to be determined. It is determined whether or not the SK is duplicated (step S2). If the process shape element range data SK of the machining processes to be determined overlap, the process proceeds to step S6, and the simultaneous machining possibility determination information 5.1 is output as simultaneous machining is not possible, and the process ends (step S6). In addition, process shape element range data SK of the processing process to be determined
If there is no overlap, the process advances to step S3. Step S
3'C determines whether any of the machining processes to be determined uses a trill, end mill, reamer, center drill, or tap J: Uno 1 drilling tool, and if not, step Step 55 is entered, and the simultaneous machining possibility determination information 5.1 is outputted indicating that simultaneous machining is possible, and the process ends.

If you are using a tool with holes, proceed to step S4.
It is determined whether the process shape element range data 5K of the processing process to be determined are adjacent. If the process shape element range data SK of the machining process to be determined are adjacent, the process proceeds to step S6, outputs the simultaneous machining possibility determination information SJ indicating that simultaneous machining is possible, and ends the process. Further, the processing process to be determined is completed (step S5).

Figure 3 shows an example of the types and order of machining processes included in the numerical control information output from the numerical control information creation device of the present invention, and Figure 4 shows the machining shape and post-machining shape for each process. Indicates the number of the shape elements that make up the shape of the workpiece,
Figures 5 and 61 show the process.

Also, is Figure 7 for engineering? Shape element range data storage section 11
Process shape element range data S for each processing process stored in
This is an illustration of an example of H. For example, if the rough end surface ↓ of A turret is machined as the first culm, it will be the same as 114
The rough machining of the B tool rest [u11] is performed at the same time, and in this case, the machining is done at the same time.

Is this the process shape element range data 5K shown in Figure 7?
% I I K'j, in the machining process of the rough end surface ↓ of A tool post, it is 8 to 7, and in the first process, the machining process of the rough end surface ↓ of B tool post, it is 2 to 2, so it is a process shape factor This is because there is no overlap in the range data SK, and Torara's machining process does not use drilling tools such as trills, end mills, reamers, center drills, and taps. In this case, it can be seen from the machining shape for each step shown in Figure 4 and the machining state shown in Figure 5.
There is a possibility that there will be interference between the machining process of ↓ and the machining process of the first culm and the rough end surface of turret B↓ even if they are machined at the same time) It can be said that desirable judgment results are obtained because it helps in shortening the time.

Furthermore, in the second step, the rough outer diameter (longitudinal) is machined on the A tool post, and then in the third step, the rough outer diameter (long and flat) is machined as the machining on the B tool post. In this case, Do04K2 [has become]J. This is the stingray shown in Figure 7. Shape element range data SK or second process.

In the machining process for the rough outer diameter of turret A (longitudinal length), there are 3 to 6, and in the third process, the rough outer diameter of turret B (longitudinal length), it is 4 to 6, so the process shape element range data S
This is because there is overlap in H. In this case, as can be seen from the machining shape for each step shown in FIG. 4 and the machining state shown in FIG. After completing the processing of the 2nd process, the rough outer diameter (longitudinal) of the A tool post, simultaneous machining is impossible because the 2nd radius cannot be machined, and it can be said that a desirable judgment result has been obtained. .

Figure 8 also shows an example of the types and order of machining steps included in the numerical control information output from the numerical control information creation device of the present invention, and Figure 9 shows the machining shape of each process and the post-machining shape. It shows the number of the shape elements that make up the shape of the workpiece, and FIG. 10 shows the state of the machining, and FIG. 11 shows the process shape for each machining process stored in the process shape element range data storage unit IJ. This shows an example of element range data SH. In this machining example, after the first step is trill machining of the B tool post, the second step is machining of the rough outer diameter of the A tool post (72), which is simultaneous machining. do not have. This is because a trill tool, which is a drilling tool, is used in the process of the B tool post as the first process, and the process shape element range data SK shown in FIG. 11 is adjacent to each other. In this case, the processed shape and the 10th shape for each step shown in FIG.
As you can see from the machining process shown in the figure, there is a strong possibility that the tools will come into contact with each other in the first step, trill machining of turret B, and the second step, machining of the rough outer diameter of turret A. Since it is expensive and impossible to process simultaneously, it can be said that a desirable judgment result has been obtained.

(Effects of the Invention) In the numerical control information creation device of the present invention, in determining whether or not simultaneous machining is possible, the machining shape of each machining unit c'TW for each machining process constitutes the shape of the input workpiece after machining. It has process shape element range data that indicates whether it overlaps with the part of the shape element to be processed, and if this process shape element range data overlaps, it is determined that simultaneous machining is not possible, and even if there is no overlap, it is determined that simultaneous machining is not possible. If at least one of the machining processes for which machining is to be determined is possible, or if a tool with a hole such as a trill, end mill, reamer, center drill, or tap is used, the process shape element range By determining that simultaneous machining is not possible if the data are adjacent, it may be determined that simultaneous machining is not possible even if simultaneous machining is actually possible, or that simultaneous machining is possible even if simultaneous machining is impossible. It is now possible to create efficient and safe numerical control information without having to make any judgments. That is, according to the present invention, it is possible to easily determine whether simultaneous machining is possible or not, which is closer to the actual situation.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing an embodiment of the numerical control information creation device of the present invention, Fig. 2 is a flowchart showing an example of the operation of the same-surface machining determination section in the present invention, and Fig. 3 is a numerical control □ of the present invention. ) i! i-report creation device or output - numerical control 1
1 shows the types of machining steps and their order, FIG. 4 shows the numbers of the shape elements that make up the shape of the machining process and the shape of the workpiece after machining, and FIGS. Figure 6 is a diagram showing the machining state of the machining process, Figure 7 is a diagram showing an example of process shape element range data of the machining process, and Figure 8 G: 1 Numerical control output from the numerical control information creation device of the present invention Figure 9 is a diagram showing the types of machining processes and their order in the information, Figure 9 is a diagram showing the numbers of the shape elements that make up the machining shape of the machining process and the shape of the workpiece after machining, and Figure 1O is the diagram of the machining process. Figure 11 shows the machining process. A diagram showing another example of shape element range data, FIG. 12 is a block diagram showing an example of a conventional numerical control/[rI report creation device], and FIG. 13 is a flow diagram showing an example of the operation of the simultaneous machining possibility determination section. to,
Fig. 14 is a diagram showing an example of the simultaneously processable combination information storage unit i=stored simultaneously processable combination information, and Fig. 15 is a diagram showing an example of the stored simultaneously processable combination information. Diagram showing the types and their order, No. 16
Figures 17 and 18 show the machining shape of the machining process.
The figure shows the machining state of the machining process, Fig. 19 shows the types of conventional machining processes and their order, Fig. 20 shows the machining shape of the conventional machining process, and Fig. 21 shows the machining process. It is a figure showing the state of processing. 1...Data input device, 2...Data input section, 3...
・Post-processing shape storage section, 4... Pre-processing shape storage section, 5.
... machining process generation unit, 6... machining process data storage unit,
7... Machining order data storage unit, 8... Simultaneous machining possibility determination unit, 9... Numerical control information generation unit, 10... Simultaneous machining possible combination information storage unit, 11... Process shape element range Data storage. tea! 7 Prisoner A Helping Stand B Knife Stand Certain 19th Figure 20th I6 Figure 2I

Claims (1)

[Claims] In order to create numerical control information for controlling a numerically controlled lathe that has one or two tool rests and can perform machining simultaneously with the two tool rests, the shape of the workpiece after processing is In a numerical control information creation device that inputs and creates numerical control information from the shape of the workpiece after machining, the machining shape of each machining process is determined by which of the shape elements that constitute the input shape of the workpiece after machining. Numerical control information creation characterized by having process shape element range data for each of the machining steps indicating whether the process shape element range overlaps with a part, and having a function of determining whether or not simultaneous machining is possible based on the process shape element range data. Device. 2. If there is an overlap in the process shape element range data held for each of the machining processes for which the simultaneous machining is to be determined, the determination is made that the simultaneous machining is not possible. Claim 1 having the function
The numerical control information creation device described in . 3. If at least one of the machining processes for which simultaneous machining is to be determined uses a drilling tool, in addition to the determination function described above, each of the machining processes has a The numerical control information creation device according to claim 2, further comprising a function of determining that the simultaneous machining is not possible when the process shape element range data are adjacent.