JPH10137868A - Laser beam machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently perform the punching at a low cost by providing a punch press mechanism to perform the punching when the output necessary for punching a work is not more than the prescribed value smaller than the maximum output of the laser beam machining. SOLUTION: When the output required in punching a work does not exceed the maximum working output of a punch press mechanism part 1, and can be worked by a tool equipped with turrets 9A, 9B, the working is surely performed by the punch press mechanism 1, and other working requiring high output is performed by a laser beam machine 2. Switching of the punch press mechanism part 1 and the laser beam machine part 2 is set to the machining program of a numerically controlled device which is a control device. Many kinds of working requiring small capacity are performed by the punch press mechanism part 1, and the machining requiring the large capacity and the machining of complicated shape are performed by the laser beam machine 2, enabling the efficient operation at a low cost. The machining range can be expanded by providing a plurality of different tools on the punch press mechanism part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laser processing machine having a punch press mechanism.

[0002]

2. Description of the Related Art Conventionally, a multi-tasking machine having a punch press mechanism having a general press capacity of 20 tons and a laser machine capable of performing the same punching and cutting processes has been used. The laser processing machine is provided to perform fine processing and processing of complicated shapes that cannot be performed by punching, and the punch press mechanism is mainly used in terms of operating cost and processing efficiency. .

[0003]

However, drilling of a general shape can be performed by either a punch press mechanism or a laser processing machine. Since the apparatus is equipped with a high-power punch press mechanism capable of processing and a laser processing machine, the use of equipment is large and the machine is expensive.

An object of the present invention is to solve such a problem and to provide a low-cost laser processing machine that can efficiently perform punch processing at low operating cost in general processing. And

[0005]

SUMMARY OF THE INVENTION A laser processing machine according to the present invention is a laser processing machine for punching or cutting a plate-shaped work, and an output required at the time of processing the work is a maximum output of the laser processing. A punch press mechanism that performs processing when the value is smaller than a predetermined value is added. According to this configuration, a hole having a normal thickness and a hole diameter at which the output required at the time of processing the workpiece is equal to or less than a predetermined value is processed by the punch press mechanism, thereby achieving high processing efficiency and low operating cost. Hole processing of a plate thickness or hole diameter that cannot be processed by the punch press mechanism is performed by laser processing. Fine processing and processing of complex shapes that cannot be performed by the punch press mechanism are also performed by laser processing. As described above, in a laser processing machine, with a simple configuration in which a small-output punch press mechanism is added, normal thickness and shape processing can be efficiently performed by punch processing at a low operating cost, thereby increasing equipment costs. High processing efficiency and low operating cost can be realized while minimizing.
In the above configuration, the punch press mechanism may include a plurality of different tools. Accordingly, the punch press mechanism can perform various types of processing shapes, and the number of cases where punch processing can be performed with high processing efficiency and low operating cost can be increased. For example, the plurality of different tools may be mounted on a turret, which allows a very large number of tools to be mounted.

In these configurations, the punch press mechanism may be constituted by a servomotor and a crank mechanism for converting the rotation of the servomotor into a reciprocating motion of the ram. In this way, by using the punch press mechanism driven by a servo motor, unlike a hydraulic press, the punch speed can be changed with good controllability in the middle of a stroke with a simple configuration. Can be achieved. Further, by performing the press working by controlling the speed with the servo motor in this manner, it is possible to reduce the noise and the vibration. Therefore, it is possible to keep the laser processing with high accuracy without affecting, for example, an optical device of the laser processing machine which particularly dislikes vibration. In addition, by converting the rotation of the servo motor to the reciprocating motion of the ram by the crank mechanism, the punch drive mechanism can be configured with a simple structure without using a special mechanism such as a booster mechanism, The number of parts can be reduced, and the device can be reduced in size and simplified.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. In this laser processing machine, a punch press mechanism 1 is added to a laser processing machine 2, and a frame 3 and a table device 4 are also used for both 1 and 2. The punch press mechanism 1 performs processing when the output required during work processing is equal to or less than a predetermined value smaller than the maximum output of laser processing. In this example, the punch press mechanism 1 has the maximum processing output. (Maximum punching tonnage) is 10 tons. The maximum processing output of the punch press mechanism 1 is lower than that of the laser processing unit 2 and less than half of the output of the laser processing unit 2. The laser processing machine unit 2 has a maximum processing output higher than that of the punch press mechanism unit 1 and has an output capable of performing processing equivalent to 20 tons press or more, which is about twice or more the output of the punch press mechanism unit 1. I have it. The frame 3 has a C-shaped side surface, and a bed 25 that follows the front thereof.
A table device 4 is provided above.

The punch press mechanism section 1 comprises a turret punch press having a punch drive mechanism 5 and turrets 9A and 9B. The punch driving mechanism 5 is a mechanical press that drives a ram 7 installed at the end of the upper frame portion 3 a of the frame 3 by a servo motor 6 via a crank mechanism 8 so that the speed can be controlled. The turrets 9A and 9B are provided with a plurality of types of tools 2 serving as punch dies and die dies on the circumference, respectively.
3A and 23B are installed in a space between upper and lower frame portions 3a and 3b of the frame 3.

The laser machining unit 2 includes a laser head 14 installed near the ram 7 at the end of the upper frame 3, a laser oscillator 12 installed on the floor beside the frame 3,
A duct 13 is provided between the laser oscillator 12 and the laser head 14 and is provided on the upper frame 3a to guide laser light.

FIG. 2 shows the punch driving mechanism 5. The servo motor 6 has an outer shape that extends long along the motor axis direction, has a built-in speed reducer 15 at the tip, and is provided in the upper frame portion 3a in the longitudinal direction (the front-rear direction Y) of the upper frame portion 3a. ) Is housed along. For the punch drive mechanism 5,
No inertia imparting means such as a flywheel is provided. The crank mechanism 8 is of an eccentric cam type, and has an eccentric cam 16.
Are rotatably supported by a pair of bearings 17 and 18 at the tip of the upper frame portion 3a on the same rotation center O as the motor shaft 6a of the servo motor 6. The eccentric cam 16 and the motor shaft 6a of the servo motor 6 are connected via a shaft coupling 19. The eccentric cam 16 has its eccentric shaft portion 16a rotatably fitted into a hole at the upper end of the crank arm 20 via a bearing (not shown). The ram 7 is connected to the lower end of the crank arm 20 via a pin 21, and the ram 7 is supported by a ram guide 22 provided on the lower surface of the distal end of the upper frame portion 3 a so as to be able to move up and down. The tip of the ram 7 has a T-groove-shaped head connecting portion that is connected to the head of the punch die 23 held by the upper turret 9A.

As shown in FIG. 3, the table device 4 includes a central fixed table 26a provided on a bed 25,
The movable table 26b is provided with a movable table 26b on both sides thereof, and the movable table 26b is driven forward and backward (Y direction) on the rail 27 of the bed 25 together with the carriage 28. Carriage 28
A cross slide 30 having a work holder 29 is installed so as to be able to advance and retreat in the left-right direction (X direction), and the plate material W gripped by the work holder 29 is moved by the carriage 28 and the cross slide 30 to the tables 26a, 2.
6b in the X and Y directions.

Next, an operation method of the laser beam machine will be described. If punching is possible with output less than the specified value,
That is, the thickness t, the material, and the hole H to be processed of the plate material W.
When punching is possible with the maximum processing output (10 tons in this example), which is the pressing capability of the punch press mechanism 1 for the diameter (perimeter) of the punch, the punch press mechanism 1 performs the processing (FIG. 1). (B)). Thus, the punch press mechanism 1
In this case, the machining can be performed at a higher speed and the operating cost is lower than in the case of machining with the laser machining unit 2.
When punching is impossible with the predetermined value (in this example, the maximum processing output of the punch press mechanism 1), the laser processing machine 2 performs processing. That is, as shown in FIG.
There and if thicker than a predetermined thickness, if the circumference as holes of H ₂ FIG. 1 (D) is processed long hole and laser processing.
Further, even if the processing is less than or equal to the maximum processing output of the punch press mechanism 1, cutting of a complicated shape that cannot be performed by the tools provided in the turrets 9 </ b> A and 9 </ b> B is performed using the laser processing machine 2. . That is, the output required during work processing does not exceed the maximum processing output of the punch press mechanism 1, and the turret 9 of the punch press mechanism 1
When processing can be performed with the tools 23A and 23B provided in the tools A and 9B, the processing is always performed by the punch press mechanism 1, and otherwise, the work is processed by the laser processing machine 2. The proper use of the punch press mechanism 1 and the laser processing machine 2 is set in a processing program 31 of an NC device 32 (FIG. 4) which is a control device for controlling the multifunction processing machine.

Since the laser processing machine is provided with the punch press mechanism 1 having a small output as described above, many processes can be performed by the punch press mechanism 1 having high processing efficiency and low operating cost. In general, most of the punching processing can be performed with a small press ability, and only a part of the processing that requires a large press ability or processing of a complicated shape may be performed by the laser processing machine unit 2.

The press drive unit 5 of the punch press mechanism unit 1 used in this embodiment directly drives the ram 7 only by the servo motor 6 and the crank mechanism 8, so that the controllability is good and the stroke is good. By lowering the punch speed just before contact with the plate material W on the way, noise can be reduced and control for minimizing a decrease in the hit rate can be favorably performed. For this reason, most of the holes to be processed can be punched with high efficiency, and this also compensates for a decrease in efficiency due to laser processing of some of the holes.

The criteria for the plate thickness, material, and hole diameter (perimeter) for processing by the punch press mechanism unit 1 or by the laser processing machine unit 2 are based on the processing for numerically controlling the multifunctional processing machine. It is preferable to set in advance when the program 31 is created. For example, as shown in FIG. 4, the machining program 31 automatically generated by the automatic programming device 36.
Is executed by the NC device 32 to control the multi-tasking machine 33, the punch / laser determination means 34 is set in the automatic programming device 36 in advance. The automatic programming device 30 is provided with processing graphic data 35 for processing a plate material, processing conditions,
By inputting data such as material, the machining program 31
Is a means for automatically generating. Punch / laser determination means 3
Reference numeral 4 denotes a predetermined value obtained by the mutual relationship among the plate thickness, the material, and the perimeter for drilling, and a criterion is provided so that the punch press mechanism 1 and the laser processing machine 2 can be used properly. . It is desirable that the set values are determined for the sheet thickness, the material, and the perimeter, and the judgment criteria are prepared as a table.

In the above embodiment, the punch press mechanism 1 is driven by a servomotor. However, the punch drive mechanism 5 of the punch press mechanism 1 is a crank type having a general flywheel and a clutch / brake. It is possible to realize processing with high processing efficiency and low operation cost with a simpler configuration. The punch drive mechanism 5 of the punch press mechanism 1 may be a hydraulic press using a hydraulic cylinder or the like. Further, the laser processing machine of the present invention is a laser processing machine for punching or cutting a plate-shaped work, wherein an output required at the time of processing the work is a predetermined value smaller than a maximum output of the laser processing. In addition, a punch press mechanism that is driven when a tool necessary for processing the work is provided may be added. Further, the laser processing machine of the present invention is a laser processing machine for punching or cutting a plate-shaped work, wherein an output required at the time of processing the work is a predetermined value smaller than a maximum output of the laser processing. In addition, a punch press mechanism that is driven when a tool necessary for processing the work is provided may be added.
That is, this laser processing machine is characterized in that processing to be performed by laser processing is performed by the punch press mechanism under predetermined conditions.

[0017]

The laser beam machine according to the present invention is a laser beam machine for perforating or cutting a plate-shaped work, wherein the output required at the time of the work is smaller than the maximum output of the laser process. Since a punch press mechanism that performs processing in the case where the value is equal to or less than the value is added, a low-cost machine can efficiently perform punching and perform processing at low operating cost in the case of general processing. Further, when the punch press mechanism has a plurality of different tools, the range that can be processed by the punch press mechanism is widened, and punch processing that can be performed with higher processing efficiency and lower operation cost than laser processing is performed. Can be more. When the punch press mechanism is composed of a servomotor and a crank mechanism that converts the rotation of the servomotor into a reciprocating motion of a ram, the processing by the punch press mechanism can be performed with low vibration, and the laser processing can be performed. The above-described punching with low vibration can be realized by a low-cost punch press mechanism having a simple structure and having no influence on the optical device.

[Brief description of the drawings]

FIG. 1A is a side view of a laser processing machine according to an embodiment of the present invention, FIG.
(C) is an explanatory diagram of the laser processing, and (D) is an explanatory diagram of the hole diameter of the plate material.

FIG. 2A is a cutaway side view of a press drive unit in a punch press mechanism, and FIG. 2B is a partially enlarged front view thereof.

FIG. 3 is a plan view of the entire laser processing machine.

FIG. 4 is an explanatory diagram showing a laser processing machine and a control system thereof.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Punch press mechanism part 2 ... Laser processing machine part 3 ... Frame 4 ... Table device 5 ... Punch drive mechanism 6 ... Servo motor 7 ... Ram 9A, 9B ... Turret 12 ... Laser oscillator 13 ... Duct 14 ... Laser head

Claims (3)

[Claims] 1. A laser processing machine for punching or cutting a plate-shaped work, wherein the processing is performed when an output required at the time of processing the work is not more than a predetermined value smaller than a maximum output of the laser processing. A laser processing machine with a punch press mechanism. 2. The laser beam machine according to claim 1, wherein the punch press mechanism has a plurality of different tools. 3. The laser beam machine according to claim 1, wherein the punch press mechanism comprises a servomotor and a crank mechanism for converting the rotation of the servomotor into a reciprocating motion of a ram.