JPH058065A - Automatic high speed cutting device for long barlike stock - Google Patents

Abstract

PURPOSE:To provide an economical automatic high speed cutting device with a high working rate for a long barlike stock which cuts a long stock efficiently to a prescribed length and sorts products and remainders automatically from a work. CONSTITUTION:This device consists of a slide cylinder 4 moving a long tube stock 2 through a chuck 5 in the shaft center direction and a movable positioning table 8 which can chuck the tip of the tube stock 2, can move it in the direction of the shaft center and is rotatable around the shaft center, provides feeding lines for 1st and 2nd tube stocks arranged side by side, a laser beam cutting machine 13 mounted between the slide cylinder 4 and a positioning table 8 and for cutting the tube stock 2 and an automatic sorting plate 14 provided under the cutting machine 13, for sorting a cut work 20 and the remainder 21 and for guiding them to separate carrying shoots 16, 18 respectively and when cutting is carried out in the 1st line, the to position the tube stock 2 to the cutting position is carried out alternately in the 2nd line at the same time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic high-speed cutting device for long rods.

[0002]

2. Description of the Related Art As a device for automatically cutting long steel pipes, steel rods, plastic pipes, etc. to a predetermined length, Japanese Patent Laid-Open Publication No.
No. 6-21718, JP-A-58-44963, JP-A-58-66615 and the like are known, all of which have a structure in which the long rod-shaped material is fed to the cutting portion in one line. Is.

[0003]

However, in such a one-line feeding structure, since the cutting work is intermittent, the amount of product cut per cutting machine is limited. Also, as a cutting machine, one using a laser beam has high processing accuracy and can perform high-speed cutting without generating shavings.
Furthermore, although it has an excellent function of easily cutting a steel pipe having a high hardness, it has a drawback that the equipment cost is high. Therefore, the feed of the material pipe is performed in parallel in at least two lines, and the feed and positioning of the material pipe is performed in one line, while cutting is performed in the other line, thereby eliminating the idle time of the cutting machine. It is conceivable to cut a long pipe material into a predetermined length with high efficiency.

The present invention has been proposed in view of such circumstances, and efficiently cuts a long material into a predetermined length by a laser beam and automatically sorts a product and a residual material. It is an object of the present invention to provide an economical high-speed automatic high-speed cutting device for long rod-shaped materials.

[0005]

To this end, the present invention provides first and second material feeding means for supporting long rod-shaped materials in the front-rear direction in parallel and respectively moving in the axial direction via a chuck. , First and second movable material rotating means which are respectively disposed in front of the respective material feeding means, move to a cutting position, grip the front ends of the respective materials, and rotate them around their respective axial centers. An identical laser beam cutting machine provided at an intermediate position between the feeding means and the rotating means for cutting each material into a predetermined length, and a laser beam cutting machine provided below the cutting machine and cut into a predetermined length. The product and the residual material are distributed, and the distribution means for guiding the both to different discharge chutes are provided, and one material fed by the one feeding means and rotated by the one rotation means is cut by the cutting machine. Cut the other material at the same time as above Characterized in that to perform alternately the operation housing 1000. in the cutting position by the second feed means.

[0006]

According to this structure, the long material is fed in parallel in at least two series, and the material of the other series is fed and positioned during the cutting process of the material in one series. Therefore, the high-priced laser cutting machine can be fully operated without idle time. At that time, the materials of both systems are alternately cut, and the product and the residual material are automatically discharged through the distribution chute and the product chute and the residual material chute, respectively.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, an embodiment in which the present invention is applied to a pipe material will be described. FIG. 1 is an overall perspective view thereof, FIG. 2 is a side view of FIG. 1, and FIG. 3 is a sectional view taken along the line YY of FIG. FIG. 4 is an explanatory view of a cutting process of the pipe material according to FIG. 1.

First, referring to FIG. 1, the outline of the present apparatus is as follows: 1 is a pedestal of the apparatus extending in the front-rear direction, and a pair of long material pipes 2 and 2 are in the front half of the gantry 1 from front to back. The raw material tube 2 pushed in the front half of the gantry 1 during that time is sent to the latter half by a predetermined length, and is cut by the laser cutting machine 13 during rotation by the rotating chuck 10, and during this cutting, Other material pipes are sent to the latter half for a predetermined length, and similarly, the operation of cutting during rotation is repeated a plurality of times alternately for the left and right systems, during which the product is shot by the distribution plate 14 each time cutting is performed. It is discharged to the product exit plate 17 on the side of the gantry via 16 and the residual material 21 is discharged to the rear side of the gantry via the residual material chute 18.

Next, referring to FIGS. 1 to 3, the structure of the present apparatus will be described. Reference numeral 3 indicates a material pipe 2 or 2 projecting from the front end of the frame 1.
A pair of left and right guide rollers for guiding the side surfaces in parallel, and 4 and 4 are slide cylinders in the front-rear direction, respectively.
A chucking device 5 composed of a pair of left and right chuck pieces for sandwiching and fixing the chuck is attached so as to be slidable in the front-rear direction. Reference numerals 7 and 7 respectively project at the rear end position of the slide cylinder 4 onto the pedestal 1 to receive and support the material pipe 2, 8 is a pipe end positioning table, and the table 8 is laid on the rear half of the pedestal 1. A positioning motor 9 is slidable along the pair of left and right front and rear rails. Reference numerals 10 and 10 denote rotary chucks arranged in parallel on the positioning table 8. The front ends of the raw material tubes 2 are fixed by inserting the front end of each rotary chuck 10 into the front end opening of the raw material tube 2 and then expanding it. At the same time, there is provided a rotating chuck 10 for rotating the material tube 2 around its axis by a rotating motor 11. 13 is a laser cutting machine that is suspended above the center of the gantry 1 and alternately cuts the left and right material pipes with a laser beam. 14 is provided directly below the laser cutting machine 13 to divide the product 20 and the residual material 21 into a pair of left and right. As shown in FIG. 3, the distributing plate is pivotally supported at the fulcrum of the portion near the inner end, and is fixed between the solid line position and the chain line position by the rigid hydraulic cylinders 15 disposed below the parts near the outer end. It is possible to rotate.
16 is a vertical product chute vertically extending below the inner end of the distribution plate 14, 17 is a product discharge plate whose inner end extends directly below the product chute 16 and whose outer end extends laterally of the gantry 1, and 18 is a gantry. Is a residual material chute that is attached to both sides of the distribution plate 14 and receives the residual material 21 that falls from the outer end of the distribution plate 14.

In such a device, the positioning table 8 is moved in advance in accordance with the cutting length L of the product to set the cutting position shown by the chain line in FIG. , Cutting and discharging are shown in FIG.
As shown in FIG. A: The material tube 2 is pushed from the front end of the gantry 1 by a device (not shown) to be guided by the guide roller 3, and the leading end thereof is introduced into the chucking device 5 so as to be aligned. B: An optical sensor (not shown) detects the introduction of the material tube 2,
The chucking device 5 grips the tip of the material tube, and the slide cylinder 4 strokes to insert the material tube 2 into the pedestal 7. C: Here, the chucking device 5 releases the material pipe 2 and then returns to the front end position by the action of the slide cylinder 4. D: After the chucking device 5 grips the material tube and then strokes forward, the tip of the material tube 2 comes into contact with the rotating chuck 10. E: The rotation chuck 10 grips the tip of the material tube by the action of a proximity sensor (not shown) attached to the rotation chuck 10, and the material tube rotates around the axis by the rotation of the rotation motor 11, while the laser beam is emitted during that time. The material pipe 2 is cut at the cutting position indicated by the chain line by the action of the cutting machine 13 and the product 2 having a predetermined length L is cut.
It falls to 0 and falls. At that time, since the distribution plate 14 is located at the chain line position in FIG. 3, the product is discharged laterally through the product chute 16 and the product discharge plate 17. F: After the steps C to E are alternately repeated by the left and right systems several times, the residual material length sensor 19 detects that the residual material length becomes L or less. G: Then, the next material pipe 2A is introduced, and the remaining material 21
Is pushed out from the pedestal 7, and the sensor detects it,
The distribution plate 14 is moved from the chain line position to the solid line position. H: The extruded residual material 21 falls onto the distribution plate 14 that has moved to the solid line position, and is therefore conveyed to the rear of the gantry via the residual material chute 18.

[0011]

According to such a device, the following effects can be obtained, so that the present invention is industrially very useful. (1) Since the material pipe feeding means and the rotating means are arranged side by side in two lines, while the laser cutting machine cuts in one line, the material pipe is fed and positioned in the other line. Therefore, following the cutting of one series of material pipes, the laser cutting machine cuts the other series of material tubes. For example,
Assuming that the laser cutting time is 3 seconds, and that the discharge of the cutting tube and the feeding and chucking of the material tube in one of the series require 1.5 seconds each, the laser cutting machine is practically once every 3 seconds. The cutting work can be done without any idle time. (2) Since the laser cutting machine can easily change the projection direction of the laser beam by rotating the mirror, only one expensive laser cutting machine needs to be installed and the facility cost can be reduced. (3) The product and the residual material are automatically sorted by the action of the distribution plate and discharged through the product chute and the residual material chute, respectively, so that both of them can be carried out to the subsequent process labor-savingly. (4) With this device, a cutting machine is attached so that it can move laterally, so it can be applied to cutting with a cutting tool and cutting with a cutter disk, but a laser cutting machine is suitable for quick cutting and cutting of high hardness material pipes. is there.

[Brief description of drawings]

FIG. 1 is an overall perspective view showing an embodiment of the present invention.

FIG. 2 is a vertical sectional view of FIG.

3 is a transverse cross-sectional view taken along the line YY of FIG.

FIG. 4 is an explanatory diagram of a cutting process in FIG.

[Explanation of symbols]

1: stand, 2: material tube, 3: guide roller, 4: slide cylinder, 5: chucking device, 7: cradle,
8: Positioning table, 9: Positioning motor, 10:
Rotation chuck, 11: rotation motor, 13: laser cutting machine, 14: distribution plate, 15: hydraulic cylinder, 1
6: Product chute, 17: Product discharge plate, 18: Remaining material chute, 19: Optical sensor, 20: Product, 21: Remaining material.

Claims (1)

Claims: 1. First and second material feeding means for supporting long rod-shaped materials in the front-rear direction in parallel and respectively moving in the axial direction via a chuck, and each of the above materials. First and second movable material rotating means which are respectively disposed in front of the feeding means, move to a cutting position, grip the leading ends of the respective materials, and rotate them around their respective axial centers, and the feeding means. Means and the same laser cutting machine which is provided at an intermediate position between the rotating means and cuts each material into a predetermined length, and a product and a residual material which are provided below the cutting machine and cut into a predetermined length. It is equipped with a distribution means that guides both to different discharge chutes,
The operation in which one material fed by the one feeding means and rotated by the one rotating means is cut by the cutting machine and simultaneously the other material is brought to the cutting position by the second feeding means is alternately performed. An automatic high-speed cutting device for long rod-shaped materials characterized by the above.