JPH012794A - Laser processing equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a laser processing apparatus for processing a continuously fed workpiece, such as a pipe material.

(Prior Art) When processing pipe-making materials, for example, cutting them into a predetermined length, conventionally, the pipe-making material that is continuously sent out from the pipe-making process is stopped once it has been sent out by a predetermined length. Then, cutting is performed using a cutting cutter. However, in this case, when a large amount of cutting is performed, the cutting cutter wears out, reducing cutting accuracy and making the cut surface uneven, which makes it necessary to replace the cutting cutter, and the replacement work takes time. The drawback was that it took a long time.

In order to solve the drawbacks mentioned in 1-, a laser processing device is provided in which a processing head that outputs laser light is rotated around the pipe material to cut the pipe material, In this case, the processing head hardly wears out compared to the above-mentioned cutter 11i, so all the drawbacks caused by the wear of the cutting cutter can be solved.

(Problems to be Solved by the Invention) However, in the above-mentioned conventional configuration, when cutting the pipe material with the laser beam from the processing head, the feeding operation of the shield abrasive material is temporarily stopped. Since it is necessary to stop the feeding of pipe-making material and restart it every time the pipe-making material is cut, the feeding is stopped (11i
7] Work in the cutting process 11. There was a problem that it took a long time.

Therefore, the l-1 object of the present invention is that the 1. To provide a laser processing device that can process a workpiece without stopping the delivery of the workpiece when processing the workpiece, and can save working time in the processing process.

[Structure of the Invention] (Means for Solving the Problems) The laser processing apparatus of the present invention processes a workpiece that is continuously sent out using a laser beam from a processing head, and In addition to providing a delivery speed detection means for detecting the delivery speed, a workpiece feed rate detection means for aligning the processing head with the processing position of the delivered workpiece is provided. The present invention is characterized in that a processing head control means is provided for moving the workpiece at a speed synchronized with the delivery speed of the workpiece and performing a predetermined oil movement during the movement.

(Function) The delivery speed of the workpiece that is continuously sent out is detected by the delivery speed detection means, and the processing head is aligned with the processing position of the workpiece by the detection means for feeding the workpiece. In addition, while the processing head is moved by the processing head control means at a speed that is basically synchronized with the delivery speed of the workpiece, a predetermined addition operation is performed during the movement. . Therefore, the workpiece can be processed while being continuously fed out.
The amount of time it takes to stop the delivery of objects is reduced to approximately 47g +-.

(Example) Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

First, in FIG. 1 which shows an outline of the basic structure and FIG. 2 which shows a schematic block structure, 1 is a workpiece, for example, a pipe-making material, which is drawn from the pipe culm (not shown) by the arrow A in FIG. It is continuously sent out in the direction. Reference numeral 2 denotes a speed detection roller that forms a part of the delivery speed detection means 3 (1° 1z), and by rotating this speed detection roller 2 or 1-2 in accordance with the delivery operation of the pipe material 1, the delivery speed can be detected. The means 3 detects the delivery speed of the pipe material ('.) 1 and outputs the delivery speed signal S3. 4 is a length measuring device which constitutes a part of the workpiece feeding and suspension sensing means 5. Laura,
As the length measuring roller 4 rotates in accordance with the feeding operation of the pipe material 1, the workpiece feed QFfL detecting means 5 detects the feed amount of the pipe material 1, for example, the feed length, and The feed for determining the machining position is configured to output a signal S5.

On the other hand, 6 is an identification reflection mirror located at the axis of the pipe material 1, which receives the laser beam 8 oscillated from the laser oscillator 7 and reflects it by 90° to form the pipe material 1-2. It is designed to be oriented in the axial direction of the tube material 1. Reference numeral 9 denotes a rotating optical system, which is provided so as to be rotatable in forward and reverse directions around the axis of the tubular material 1 in the direction of arrow B. This rotating optical system 9 includes a first reflecting mirror 10. It consists of a second reflecting mirror 11°, a third reflecting mirror 12, and a condensing lens 13. Then, the laser beam 8 reflected by the fixed reflection mirror 6 is reflected by a first reflection mirror 10, a second reflection mirror 11, and a third reflection mirror 12, respectively.
After being reflected at 0°, the light is focused on the processed portion of the tube material 1 by passing through a condensing lens 13. Here, 14 is a processing head composed of the third reflecting mirror 12 and a condensing lens 13, which moves back and forth in the direction along the axis of the tube material 1 (in the direction of the arrow in FIG. 1). possible.

Further, in FIG. 2, reference numeral 15 denotes a processing head control means, which receives the feed speed signal S3 from the feed speed detecting means 3.
and a feed amount signal S from the workpiece feed amount detection means 5.
5, the control signal S1 is sent to the processing drive means 1.
It is designed to be given to 6. As a result, the processing head control means 15 moves the processing head 14 in the direction of arrow A at a speed synchronized with the delivery speed of the tube-making material 1, and rotates the rotating optical system 9 in the direction of arrow B during this movement. As a result, a predetermined processing operation, such as a cutting operation, is performed on the pipe material 1.

FIGS. 3 to 5 show configurations embodying the above-mentioned basic configuration, which will be described below. Note that the components (14) described in FIG. , is rotatable by inserting and supporting the shaft cylinder parts 18 and 19 protruding from both ends of the base 20 through the support parts 21 and 22 of the base 20 via the gutter supports. A drive motor is installed on the left side, and its driving force is transmitted to the reducer 24.
and is transmitted to the shaft cylinder section 18 of the rotation mechanism section 17 via the transmitter ++Yj 25, so that the rotation mechanism section 17
is rotated forward and backward in the direction of arrow B. Then, the pipe material 1 is inserted into the shaft fishing part 18 of the rotation mechanism part 17,
A chuck device 26 whose tip end is provided in the rotation mechanism section 17
It is chucked by. Note that the chuck device 26 is moved at a speed synchronized with the delivery speed of the pipe material 1.

On the other hand, in FIG. 5, reference numeral 27 denotes a drive motor provided in the rotation mechanism section 17, which is the driving motor for the machining belt drive stage 16.
(See Figure 2)
4 back and forth in the direction of arrow A.

Further, the fixed reflection mirror 6 receives the laser beam 8 from laser oscillation:
The light is made incident on the first reflecting mirror 10 by passing through the shaft cylindrical portion 19 .

Next, the effect of 1-1 (1°11 formation) will be described. Pipe-making material 1
is continuously sent out in the direction of arrow Alj (・
When it is detected by the length measuring roller 4 of the feed amount detection means 5 that the length of the pipe material 1 to be fed has reached a predetermined length, a control signal is sent from the processing head control means 15. S
tS is applied to the processing head driving means 16. As a result, the drive motor 27 is rotationally driven, and the machining blade 14 is positioned at the cutting start position, which is the machining position of the pipe material 1 . On the other hand, during this positioning, the speed detection roller 2 of the feed speed detection means 3 detects the feed speed of the pipe material 1, and the pressure head 1 is moved at a speed synchronized with this feed speed.
A control signal StS for moving the processing head 1j is sent from the processing head driving means 15 to the processing head driving means 16. As a result, the drive motor 27 is rotationally driven, and the processing head 14 is moved in the direction of arrow A at a speed that is synchronized with the above-mentioned delivery speed. As a result, the processing head 14
The relative velocity becomes zero, and in this state, the laser beam 8 from the laser generator 7 hits the upper fixed reflection mirror 2.
8, fixed reflection mirror 6, first reflection mirror 10°, second reflection mirror 11. The light is irradiated onto the cutting start position of the tube material 1 via the third reflecting mirror 12-11j and the condensing lens 13. Thereafter, the rotary optical system 9 is rotationally driven in the direction of arrow B by the drive motor 23, thereby cutting the tube material 1. After the cutting 11i is completed, the free bear 26a of the chuck device 26 is opened and the cut tube falls. The cutting operation as described above is performed repeatedly, and during this time, the pipe material 1 is continuously fed out without being stopped.

According to this embodiment having such a configuration, when the processing head 14 is aligned with the cutting start position of the pipe material 1 while the pipe material 1 is being continuously fed out, the processing head 14 is moved to the cutting start position of the pipe material 1 The pipe material 1 is moved at a speed synchronized with the delivery speed of the pipe material 1, and during the movement the pipe material 1 is cut by the laser beam 8 from the processing head 14. Compared to the conventional method, which stops the delivery of the tube, the working time can be shortened in the pipe-making process (molecules that do not stop the delivery of the class 1 = Kekiri 11i).

In addition, in Example 1-1, the application was applied to the case of cutting the pipe material 1, but the application is not limited to this and is not limited to 1.
For curved surface cutting, drilling, and diagonal cutting.

Laser marking 1 IJI such as laser welding or heat treatment
It may be applied when performing l ball. In particular, for curved surface cutting, drilling, and diagonal cutting, there is a relative speed difference between the moving speed of the processing head and the delivery speed of the workpiece due to the additional operation, but the processing head is basically Since it is moved at a speed that is synchronized with the sending speed, during this time it is sufficient to control the light speed by λ·1 to give the above-mentioned relative speed difference. In addition, it was applied to the case where the pipe material 1 was processed as a workpiece, but instead, it was applied to a plate material or
It may be applied when

[Effects of the Invention] As is clear from the following description, the present invention provides a speed detection means for detecting the speed of the workpiece that is continuously fed out. i!21 IJu for aligning the machining head with the machining position of the JII workpiece
U11 A workpiece feed rate sensing means is provided, and the above 'jl
A head control means is provided for moving the head at a speed basically synchronized with the delivery speed of the workpiece and performing a predetermined machining operation using a laser beam from the pressure head during the movement. tl structure, when processing workpieces that are continuously fed out, the workpiece can be machined without stopping the feedout of the workpieces, and the working time in the processing process is reduced. This has the excellent effect of shortening the time.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a schematic configuration diagram for explaining the principle configuration, FIG. 2 is a block diagram, FIG. 3 is a fracture pressure surface diagram, and FIG. 4 is a fracture side view. FIG. 5 is a cutaway view. In the drawings, 1 is a tube material (workpiece), 3 is a feed rate detection stage, 5 is a workpiece feed amount detection means, 14 is a processing head, and 15 is a processing head control stage. Agent: Patent Attorney Norihiro Chika Kendai No. 2 Figure 4

Claims (1)

[Claims] 1. A laser processing device that processes a workpiece that is continuously sent out using a laser beam from a processing head, which includes a delivery speed detection means that detects the delivery speed of the workpiece, and processing of the workpiece that is sent out. A workpiece feed rate detecting means for aligning the processing head with the position, and a means for moving the processing head at a speed basically synchronized with the delivery speed of the workpiece and performing a predetermined processing operation during the movement. A laser processing device comprising processing head control means.