JPS63230285A - Teaching method for three dimentional laser beam machine - Google Patents

Abstract

PURPOSE:To safely carry out the teaching by providing a teaching device provided with a dummy torch at the outside of the machining range of a laser beam machine, and teaching the laser beam machine by operating the teaching device. CONSTITUTION:An operator operates the dummy torch 30 to carry out an imitating machining motion to a work on a teaching area 39. Then, encoders 34, 31, 32, 33, 35 detect the each moving amount of a traveling frame 25, a saddle 27, an expanding arm 29, and the dummy torch 30 accompanied with the imitating motion, and each moving amount is outputted to a machining program producing device 36. The machining program producing device 36 produces the machining program PRO based on the detected values by ordinary method according to the imitating machining motion which is carried out by the operator, and the program PRO is stored in a machining program memory 37. The stored program PRO is sent by on-line to the laser beam machine, which directly carries out the machining based on the program PRO.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application The present invention relates to a teaching method for a three-dimensional laser processing machine that allows safe teaching in a three-dimensional laser processing machine.

(b), Prior Art Conventionally, teaching in a three-dimensional laser processing machine is performed by an operator moving the laser processing machine itself.

(C) 6 Problems to be Solved by the Invention However, these methods have many problems in terms of safety, such as the operator sometimes having to approach the torch and directly operate the torch.

Moreover, since processing cannot be performed during teeing, there is a drawback that the operating rate of the laser processing machine is reduced.

SUMMARY OF THE INVENTION In order to eliminate the above-mentioned drawbacks, the present invention aims to provide a teaching method for a three-dimensional laser processing machine that allows teaching to be performed safely and without reducing the operating rate of the processing machine. be.

(d) 'Means for solving the problem, that is, the present invention provides a dummy torch (
30) is provided with a teaching device (22),
The teaching device (22) is configured to teach the laser processing machine (1) by operating the teaching device (22).

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

(e) Zero effect With the above-described configuration, the present invention operates so that teaching is performed by the teaching device (22) provided outside the processing range of the laser processing machine (1).

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

Fig. 1 is a front view showing an example of a teaching device to which the present invention is applied, Fig. 2 is a perspective view showing an example of a three-dimensional laser processing machine, and Fig. 3 is a torch portion of the laser processing machine shown in Fig. 2. FIG. 4 is a front view showing another example of the teaching device.

As shown in FIG. 2, the laser processing machine 1 has a machine body 2, and a table 3 is attached to the machine body 2 in the direction of the arrow A in the X-axis direction.
, is supported movably in the B direction. A ball screw 6, which is rotatably mounted on a drive motor 5 mounted on the machine body 2, is screwed onto the table 3, and the ball screw 6 is rotated by rotating the drive motor 5 in forward and reverse directions as appropriate. The table 3 is driven to move in the directions of arrows A and B as appropriate.

A column 7 formed in a gate shape is provided in the fuselage 2 so as to straddle the top of the table 3, and a saddle 9 is supported on the column 7 so as to be movable in the directions of arrows C and D, which are the Y-axis directions. . A drive motor 10 attached to the column 7 is attached to the saddle 9.
A ball screw 11, which is rotatably mounted on the seat 9, is screwed together with the seat 9, and by driving the drive motor 10 to rotate in forward and reverse directions as appropriate, the saddle 9 is rotated through the ball screw 11 in the direction indicated by the arrow C.
Driven to move in the 1D direction.

A processing head 12 is mounted on the saddle 9 along the Z axis (in addition, the
, Y, and Z axes constitute an orthogonal coordinate system), and are supported so as to be movable in the directions of arrows E and F. A freely attached ball screw 15 is screwed together,
By rotating the drive motor 13 in forward and reverse directions as appropriate, the machining head 12 is rotated in the direction indicated by the arrow E via the ball screw 15.
, are driven to move in the F direction.

As shown in FIG. 3, a flange portion 12a is provided at the tip of the processing head 12 so as to be rotatable in the directions of arrows G and H.
It is attached through.

A gear 17a is fixed to the main body 17.
A positioning motor 19 fixed to the processing head 12 is connected via a gear 19b.

An optical path 17b composed of two reflecting mirrors 17c is formed inside the main body 17, and at the tip of the optical path 17b,
The torch portion 20 is rotatably supported in the arrows (2) and (J) directions. The torch 20 is moved in the direction of arrow I by a positioning motor 21 fixed to the main body 17.

The torch 20 is supported so as to be rotatably driven in the J direction, and a tip 20a is attached to the tip of the torch 20.

Inside the 1-ch part 20, the light # in the main body 17 described above is
Two reflecting mirrors 2 are connected to the chip 117b and the chip 20a.
An optical path 20c consisting of 0b is formed.

On the other hand, the teaching device 22 operates outside the movable range of the rotating torch 16 of the laser processing machine 1, that is, the laser processing 8111
The device 22 is installed outside the processing range of the first
As shown in the figure, it has a base 23 extending in a direction perpendicular to the plane of the paper in the figure. A traveling frame 25 is supported on the base 23 so as to be movable in a direction perpendicular to the plane of the drawing, and an L-shaped arm 26 is provided on the traveling frame 25. A saddle 27 is supported on the arm 26 so as to be movable in the force directions of arrows C' and D', which are perpendicular to the moving direction of the traveling frame 25, and a telescoping arm 29 is further supported on the saddle 27 in the direction of arrow C'.
, D' is supported so as to be movable in the direction of arrow E'>F', which is a direction perpendicular to the direction of movement of the traveling frame 25. A dummy rotating torch 30 having the same external dimensions as the rotating torch 16 attached to the laser processing machine 1 is provided at the lower end of the telescoping arm 29 in the figure.
The Mie rotating torch 30 has the same structure as the rotating torch 16, at least in terms of the structure of its movable parts.

(That is, the dummy rotating torch 30 and the rotating torch 16 have the same movable mechanism.) That is, the main body 17' corresponding to the main body 17 is provided so as to be freely pivotable in the directions of arrows G and H with respect to the telescoping arm 29. Furthermore, a 1--torch portion 20 corresponding to the torch portion 20 is provided so as to be pivotable in the directions of arrows I and J with respect to the main body 17'. Further, the saddle 27 is equipped with an encoder 31 that can detect the amount of movement of the saddle 27 in the arrow C' and D' force directions, and an encoder 31 that can detect the amount of movement vh of the telescoping arm 29 in the arrow E' and F' force directions. An encoder 32 is provided, and the dummy rotating torch 30 is also provided with an encoder 33 capable of detecting the amount of rotation angle of the dummy rotating torch 3° in the directions of arrows G, H, I, and J.
．． 35 are provided. Further, the running frame 25 is provided with an encoder 34 that detects the amount of movement of the running frame 25 in a direction perpendicular to the paper surface.
1, 32, 33, 34, and 35 are connected to a machining program generation device 36 that is connected to a machining program memory 37.

Since the laser processing machine 1 and the teaching device 22 have the above-described configurations, when teaching a processing program related to the laser processing machine 1 using the teaching device 22, the teaching area 39 indicated by diagonal lines in FIG. A three-dimensional three-dimensional workpiece to be processed is installed, and in that state, the dummy rotating torch 30 of the teaching device 22 is turned on.
By having the operator move the machine according to the actual processing,
Perform teaching operation. The running frame 25 is the base 2
Although it is possible to move in a direction perpendicular to the paper surface relative to 3,
These are arrows A and B on table 3 in laser processing machine 1.
Corresponds to directional movement. Further, the movement of the saddle 27 in the directions of arrows C' and D' with respect to the arm 26 is performed by the laser processing machine 1.
This corresponds to the movement of the saddle 9 relative to the column 7 in the directions of arrows C and D. Further, the arrow E' of the telescopic arm 29,
The movement of F' is caused by the processing head 12 in the laser processing machine 1.
This corresponds to movement in the directions of arrows E and F. Similarly, the movement manner of the main body 17' and the I--touch section 20' of the dummy turning torch 30 corresponds to the movement manner of the main body 17 and the torch section 20 of the turning torch 16, respectively. Therefore, when the operator operates the dummy rotating torch 30 to perform a simulated processing operation on the workpiece on the teaching area 39, the traveling frame 25, saddle 27, telescoping arm 29, and dummy rotating torch 30 are The amount of movement is 34.31.3 for each encoder.
Detected at 2.33.35, machining program generation device 3
6 is output. The machining program generation device 36 generates a machining program PRO corresponding to the simulated machining operation performed by the operator using a known method based on these detected values, and stores it in the machining program memory 37.

The nib gastrogram PRO generated and stored in the processing program memory 37 in this manner is transferred online to the laser processing machine 1, and the laser processing machine 1 can immediately execute processing based on the processing program PRO. In addition, when processing with the laser processing machine 1, the workpiece is placed on the table 3.
With the table 3 mounted on the top, the drive motor 5 moves the table 3 in the directions of arrows A and B, the saddle 9 is moved by the drive motor 10 in the directions of arrows C and D, and the processing head 12 is moved by the drive motor 13. This is done by moving and driving in the directions of arrows E and F, and by further driving the positioning motor 19, the turning torch main body 17 is driven to turn in the directions of arrows G and H via gears 19b and 17a, and the positioning motor 21 By driving the torch section 20, the arrow!
, by rotating in the J direction. In addition,
The laser beam 3 passes from the processing head 12 through the optical path 17b in the rotating torch 16, passes through the optical path 20c of the torch section 20, and is ejected from the chip 20a toward the workpiece to perform a predetermined processing.

In addition, in the above-mentioned embodiment, as the teaching device 22,
Although the case has been described in which the traveling frame 25, the saddle 27, the telescopic arm 29, etc. are moved in directions orthogonal to each other, the teaching device 22 is not limited to a device in which each element is moved orthogonally to each other. Of course, it is also possible to construct it from a link mechanism or the like as shown in FIG.

In the case shown in FIG. 4, the pivot seat 40a is indicated by an arrow on the support 40,
A first arm 41 is provided to be rotatable in the direction L, and a first arm 41 is pivotally attached to the pivot seat 40a so as to be rotatable in the directions of arrows M and N.
Further, a second arm 42 is pivotally attached to the first arm 41 so as to be rotatable in the directions of arrows 0 and P, and a dummy rotating torch 30 is attached to the tip of the second arm 42. In this case, in addition to the encoders 33 and 35 in the dummy turning torch 30, the encoders are: (1) one for determining the turning angle of the turning seat 40a, (2) an encoder for determining the turning angle of the turning seat 40a, and (2) a turning angle θ1 in the arrow M and N directions of the 11th-m 41. What is required is the arrow 0 of the second arm 42. A system for determining the rotation angle θ2 in the P direction is required, and the values detected by these are coordinate-transformed into the orthogonal coordinate system in which the laser processing machine 1 is driven, and the processing program PRO is generated.

In addition, although the above-mentioned embodiment described the case where the teaching device 22 is provided separately and independently from the laser processing machine 1, the teaching device 22 may be provided outside the processing range of the laser processing machine 1. If it is, it is not necessarily necessary to be independent from the laser processing machine, and it goes without saying that it may be provided in a form that is connected and integrated with the laser processing machine 1 in terms of appearance.

(g) 0 Effects of the Invention As explained above, according to the present invention, when teaching the laser processing machine 1, the laser processing machine 1
A teaching device 2z equipped with a dummy torch such as a dummy rotating torch 30 is provided outside the processing range, and the teaching device 2z is configured to teach the laser processing machine 1 by operating the teaching device 22. There is no need to directly operate the rotating torch 16, etc. of the laser processing machine 1, and the laser processing machine 1
Teaching can be performed safely outside the machining range. In addition, since teaching and processing operations by the laser processing machine 8i1 can be performed completely separately, the laser processing machine 1
can be dedicated to processing, making it possible to increase the operating rate of the laser processing machine 1.

Furthermore, if the outer shape and movable function of the dummy head are made the same as the torch such as the rotating torch 16 of the laser processing machine 1 that is the object of teaching, the state of interference between the three-dimensional workpiece and the torch can be checked at the time of teaching. It is extremely effective because it allows accurate judgment.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an example of a teaching device to which the present invention is applied, Fig. 2 is a perspective view showing an example of a three-dimensional laser processing machine, and Fig. 3 is a torch portion of the laser processing machine shown in Fig. 2. FIG. 4 is a front view showing another example of the teaching device. 1...Laser processing machine 16...Torch (swivel torch) 22...Teaching device 30...Dummy torch (dummy swing 1-ch) Applicant Yamazaki Mazak Co., Ltd. Agent Person Patent Attorney Phase 1) Shinji (2 idiots) Figure 3

Claims (2)

[Claims] (1) In a three-dimensional laser processing machine where a processing program is created by teaching, when teaching the laser processing machine, a teaching device with a dummy torch installed outside the processing range of the laser processing machine A teaching method for a three-dimensional laser processing machine, comprising: providing a teaching device, and teaching the laser processing machine by operating the teaching device. (2) A teaching method for a three-dimensional laser processing machine according to claim 1, wherein the dummy torch has the same external shape and movable function as the torch of the laser processing machine to be taught.