JPS63126685A - Laser beam machine - Google Patents

Abstract

PURPOSE:To permit easy formation of an unprocessed part without instructing the size of the unprocessed part by using an arithmetic part for forming a processing route in such a manner that said part forms such a movement command that nonprocessing sections and processing sections are alternately disposed. CONSTITUTION:A command means 2 which has a memory means 6 stored therein with a processing program PRO and outputs the command to exchange the movement command to neglect the unprocessing part 11b in the program PRO when the formation of the part 11b in the program PRO read out of the means 6 is commanded is provided. The arithmetic part 10 for forming the processing route forms the movement command in such a manner that the processing section command to be changed by said command means change 2 is divided to plural sections and that the nonprocessing sections and the processing sections are alternately disposed to form the part 11b of the prescribed distance with respect to the divided sections.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a laser processing machine that can automatically generate unprocessed portions (microjoins).

(b), Conventional technology Normally, when processing with a laser processing machine, an unprocessed part called a micro joint is provided at each certain processing length to prevent the processed workpiece from falling off the material. There is.

Conventionally, it has been necessary to specify the position, dimensions, etc. of all unprocessed parts in the processing program as numerical information.

(C) 8 Problems to be Solved by the Invention However, in Tohe, not only does it take a lot of time and effort to create a machining program, but it also puts a heavy burden on inexperienced workers.
This was one of the factors that reduced the operating rate of laser processing machines.

In order to solve the above-mentioned drawbacks, the present invention has developed a laser beam that allows even an inexperienced operator to easily form the unprocessed part by creating a machining program without instructing the dimensions of the unprocessed part. The purpose is to provide processing machines.

(d) Means for solving problem 1, that is, the present invention has a memory means (6) in which a machining program (PRO) is stored, and a machining program (PRO) read from the memory means (6). PRO), the unprocessed part (
1l b), a command means () outputting a command to convert a movement command in which the remaining machining portion (llb) in the machining program (PRO) is not taken into account;
2), divides the machining section (pOp,) commanded to be converted by the command means conversion (2) into a plurality of sections, and creates an unprocessed portion (pOp,) of a predetermined distance fi(a) for the section divided into the plurality of sections. 11,b), a machining path generation calculation unit (10) is provided to generate a transfer command so that non-machining sections and machining sections are arranged alternately.

Note that the numbers in parentheses are for convenience and indicate corresponding draw elements in the drawings, and therefore, this description is not limited to the descriptions in the drawings. The following r (el
The same applies to the column ``, action''.

(e) 0 effect With the above-described configuration, the present invention has a machining path generation calculation unit (
10) acts to generate a movement command such that non-processing sections and processing sections are alternately arranged for the section instructed by the command means (2).

(f), Example Embodiments of the present invention will be described below based on the drawings.

Fig. 1 is a control block diagram showing an embodiment of a laser processing machine according to the present invention, Fig. 2 is a diagram showing an example of an unprocessed portion, and Fig. 3 is an example of a processing program stored in the processing program memory. Figure 4 is a diagram showing a movement command generated based on the machining program shown in Figure 3. Figures 5 and 6 are diagrams showing the progress in creating the movement command shown in Figure 4. It is a diagram.

As shown in FIG. 1, the laser processing machine 1 includes a main control section 2. The main control section 2 is connected to a data input section 5 such as a keyboard via a bus line 3, and a four-gram memory 6 for cutting nib. , an axis control section 7, a machining condition memory 9, a machining path generation calculation section 10, etc. are connected thereto.

Since the laser processing machine 1 has the above configuration, when laser processing the workpiece 11 to cut out, for example, a rectangular part 11a as shown in FIG. 2, the processing path P A along which the laser beam moves, Unprocessed portions 11b, which are not processed, are formed at regular intervals in the middle of SS. Then, the part 11a and the workpiece 1 are separated by the unprocessed portion 11b.
1 is maintained, even if the workpiece 11 is moved on the table, the part 11a will not separate from the workpiece 11, and the machining work can be performed smoothly.

That is, when processing with such a laser processing machine 1, the operator first enters the processing program P via the data input section 5.
When creating the RO, in addition to the movement command, the number of divisions n of the machining path PASS and the remaining machining amount r when executing the movement command are input as machining information INF. Such machining information INF is stored in the machining condition memory 9. In this way, the predetermined machining program PRO, for example,
Once created as shown in the figure, the created machining program PRO is stored in the machining program memory 6. Furthermore, as is clear from the figure, the machining program PR
Processing information 1. A part of N F, ie, the number of divisions n, etc., is indicated as the last word in the command block BK2 in the figure, for example, as "D n j (where n is a specific numerical value indicating the number of divisions). , In this way, the machining program Pi' (O is any unmachined portion 11b) created by the operator and stored in the machining program memory 6.
This is a normal movement command that does not take into account

In this way, the machining program PRO that does not take into account the 17 remaining machining parts 1ib is stored in the machining program memory 6, and the main control unit 2 stores it in the machining program memory based on the machining start command SC from the data input unit 5. The command blocks shown in the machining program PRO shown in FIG. 6 are sequentially read out, for example from the top of FIG. At this time, when the main control section 2 reads out the command block BK2 in which the division number n is displayed, the main control section 2 causes the machining path generation calculation section 10 to
A command is issued to generate a movement command for processing the command block BK2 in which the number of divisions n is indicated by dividing the entire command block BK2 into n divisions by forming unprocessed portions 11b.

That is, in the command block BK2 shown in FIG.
From point P0 (xolyo) shown in the figure, point P. (x,,y
, ), the command block BK2 includes a command xC to divide the interval PP into n parts, so the main control unit 2 executes the machining path generation calculation unit. 10 to generate a movement command that allows machining to be performed with the unprocessed portion 11b remaining. In response to this, the machining path generation calculation unit 10 generates a section P as shown in FIG. 23 into n equal lengths,
Furthermore, as shown in FIG. 6, the section P is calculated from the remaining machining portion stored in the machining condition memory 9. p o j, P, P,'
, PP', pm-1p, -0, etc., and the unprocessed portion 11b (distance 4) and the section P. jp2, p, sP
2, P2#P3,...p, -1"P, etc. are set. In addition, the distance 1i!i between the sections P.21 is R
Then, the coordinate values between each point have the relationships expressed by equations (1) and (2).

(i = O~n, J=O~n-1) From equation (1), the coordinate values of points P0, Pl, P2, P3...P, are (
3) and (4).

x, = (x, -xo) i/n+x0
...(3) y, = (y,
yo) i/n+y0...
...(4) (l=0 to n) Also, from equation (2), point P. e, p, *, p2
The coordinate values of t, p, t, ...-pn-1' are (5
), determined from equation (6).

xI' = (x, -xo) J'/R+x,
−・(5) y,' = (y, −yo) l
/R+y, ......(6)(J=
0 to n-1) After the coordinate values of each point have been determined in this way, the machining path generation calculation unit 10 moves the nozzle to the section P. Po'p, p
, ) , p2p2) 1. , , , p, , p, , etc., in the unprocessed portion 11b (distance &1), the laser beam is not emitted, and the section P0' P, , P
A control code is attached to generate a movement command so that processing is performed by emitting a laser beam in the sections I'P2, P2'P, . . . pn-1jp, etc.

As a result, the movement command MC generated by the machining path generation calculation unit 10 becomes as shown in FIG. That is,
Between the command blocks BK1 and BK2 in FIG.
New command blocks BK3, BK4, BK5 to BKm are inserted. In the figure, M22 is a command to stop laser beam irradiation, and M2S is a command to start laser beam irradiation. That is, the newly generated movement command MC is a laser beam irradiation stop section (command block BK) of a predetermined distance I.
4, BK8, etc.), that is, the non-processing section, and the subsequent laser beam irradiation section (command blocks BK6, BK2, etc.)
', etc.), that is, the machining sections are generated so that they are arranged alternately.

The machining path generation calculation unit 10 outputs the movement command MC thus generated to the axis control unit 7, and the axis control unit 7 executes machining in the section PP based on the movement command MC. As a result, the workpiece is divided into sections Pp 0t , p, p%, p2
p2) 1. ..., P, -, P, -, ) has a distance i
It will be processed to form an unprocessed portion 1]b (micro joint).

(g) 0 Effects of the Invention As explained above, according to the present invention, there is provided a memory means such as the machining program memory 6 in which the machining program PRO is stored, and the machining program PRO read from the memory means is provided. If generation of the remaining machining portion 11b is commanded in the machining program, a command means such as a main control unit 2 is provided, which outputs a command to convert a movement command in which the unmachined portion 11b in the machining program is not taken into account; A machining section P that is commanded to be converted by the command means conversion. Divide P, etc. into multiple parts,
A machining path generation calculation unit 10 generates a movement command MC so that non-machined sections and machining sections are arranged alternately so that an unmachined portion 11b of a predetermined distance e is generated for the plurality of divided sections. t! is configured so that the machining of the unprocessed portion 11b is simply instructed to generate the unprocessed portion 11b without instructing the machining of the unprocessed portion 11b using numerical values such as specific dimensions in the machining program PRO. This makes it possible to properly generate the unprocessed portion 11b, simplifying the creation of the machining program PRO, and even an inexperienced operator can easily create the unprocessed portion 11b.
b can be generated, making it possible to improve the operating rate of the laser processing machine.

[Brief explanation of the drawing]

Fig. 1 is a control block diagram showing an embodiment of a laser processing machine according to the present invention, Fig. 2 is a diagram showing an example of an unprocessed portion, and Fig. 3 is an example of a processing program stored in the processing program memory. Figure 4 is a diagram showing movement commands generated based on the machining program shown in Figure 3. Figures 5 and 6 show the progress in creating the movement command shown in Figure 4. It is a diagram. 1...Laser processing machine 2...Command means (main control section) 6...Memory means (machining program memory) 10
... Machining path generation calculation section 11b ... Remaining machining section 4 ... Section PRO ... Machining program MC ... Movement command Applicant Yamazaki Mazatuku Co., Ltd. Agent Patent attorney Ai 1) Shinji (and 1 other person) Figure 3 (PRO force 0 nib Ori “Rammata BK2・

Claims (1)

[Scope of Claims] It has a memory means in which a machining program is stored, and when generation of an unmachined part in the machining program is instructed in the machining program read from the memory means, the unmachined part in the machining program is A command means is provided for outputting a command to convert a movement command in which the part is not taken into consideration, the machining section for which the conversion is commanded by the command means is divided into a plurality of parts, and the machining of a predetermined distance is carried out for the divided into the plurality of parts. A laser processing machine is provided with a machining path generation calculation unit that generates a movement command so that non-machining sections and machining zones are alternately arranged so that a remaining portion is generated.