JPH0530559B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a vibration isolating device for a multi-purpose processing machine that combines a press machine with an optical device of a laser processing device.

[Conventional technology]

Since press working is originally a shocking processing method, a large impact force of 30G or more may be applied to the upper part of the press frame, which houses the power part of the press, during press work.

Directly attaching the optical device of a processing device consisting of a laser oscillator and an optical device to such a press frame would damage the optical components, so conventionally, the parts of the optical device were assembled into one and assembled into a box or board. From there, they were attached to the press frame via cushions such as rubber.

[Problem that the invention seeks to solve]

However, with this conventional method, only a small amount of impact force can be removed, shortening the life of the optical components.Also, during processing using the laser beam of the processing equipment, optical components such as lenses are likely to be misaligned, and the spot position of the laser beam is likely to shift. Since it is difficult to maintain accuracy, there is a problem in that machining accuracy and machining quality deteriorate.

This invention was made in order to solve the above problems, and has good damping characteristics, enables accurate positioning, eliminates shock during press processing, and allows accurate positioning of optical devices during laser processing. The purpose is to provide a vibration isolating device that can

[Means for solving problems]

The vibration isolating device for an optical device of a press machine according to the present invention includes: a pedestal or insertion pedestal fixed to the press frame side; an insertion pedestal or pedestal fixed to the optical device side; a pedestal or insertion pedestal on the press frame side. and an expandable and contractible hollow member that accommodates gas between the insertion table or cradle on the optical device side; a means for supplying and discharging gas into the hollow member; and a press when discharging gas from the hollow member. A fitting portion is provided in which the frame-side pedestal or insertion pedestal and the optical device-side insertion pedestal or pedestal fit into each other.

[Effect]

In this invention, when gas is supplied to the inside of the vibration isolator, the fitting part is disengaged and vibration isolation is performed by the gas cushion action, and when the gas is discharged,
By positioning and fitting the optical device in a predetermined position on the press frame, the optical device is accurately held in the predetermined position.

〔Example〕

FIG. 1 is a front view showing the entire complex processing machine using the vibration isolating device of the present invention, where 1 is a press machine and 1 is a laser processing device, and the laser processing device consists of a laser oscillator A and an optical device B. is a vibration isolator according to the present invention.

The press frame 11 of the press machine is provided with a hammer (not shown) so as to move up and down.
As will be described later, the punch attached to the upper substrate of the upper turret etc. is struck to process the workpiece material positioned by the positioning mechanism 18 between the die attached to the lower substrate of the lower turret etc. give A vibration isolator is attached to this press frame 11, and the optical device B is connected through this vibration isolator.
is supported.

Laser light from laser oscillator A is guided to optical device B, and is used for smooth machining and fine machining, such as contouring the material to be processed.

FIGS. 2a and 2b show a state in which the vibration isolator of the present invention is applied, and are a front view and a side view showing details of the peripheral portion of the vibration isolator of FIG. 1.

First, the main parts related to the press will be explained. As shown in FIG. 2a, the press frame 11
A hammer 12 is provided so as to be movable up and down.
Reference numerals 13 and 14 denote an upper substrate and a lower substrate, on which a plurality of punches 15 and a die 16 paired with these punches 15 are respectively attached. These 12-1
6 constitutes a press working part 17. A workpiece material W is supported on a positioning mechanism 18 (shown in FIG. 1) and is interposed between a punch 15 and a die 16.

Next, the main parts of the laser processing apparatus will be explained. As shown in FIG. 2b, the laser beam introduced from the flex tube 21 of the optical device B has its optical path bent by the bend mirror 22, passes through the optical path tube 23, is guided to the laser head 24, and is directed to the workpiece material W.
is irradiated to perform the required processing. Note that 25 is a laser head position adjuster, and 26 is a servo motor.

Next, a vibration isolating device that supports the optical device B on the press frame 11 in a vibration-proof manner will be described. 3
Two support stands 1 are attached to the press frame 11 as shown in FIG. 2b.

A pedestal 32 is attached to the upper surface of each support table 31, and two air suspensions 33 are provided on the upper surface of the pedestal 32 at the front and rear, so that the bed 34 is supported at four points at the front and rear on both sides via a total of four air suspensions 33. . The laser head 24 of the optical device B is supported on this bed 34.

Details of the air action 33 are shown in FIG. In this figure, 35 is a pedestal, which is attached on the pedestal 32, and the upper surface of the pedestal 35 has a recess 3 formed by a slope.
6 is formed, and furthermore, a through hole 37 is provided in the center in the vertical direction as one of the means for supplying and discharging gas into the hollow member, which will be described later, and an air inlet 38 is formed at the lower end. Communication holes 39 are provided on all sides near the recess 36 at the upper end. 40
1 is an insertion table, and a convex portion 41 consisting of a slope is formed on the lower surface, and this convex portion 41 and the concave portion 36 of the receiving table 35 constitute a fitting portion 42 for positioning.

The upper end of the insertion base 40 is inserted into the hole of the bed 34 via the height adjustment ring 43.
Airtightness is maintained between the cradle 35 and the insertion pedestal 40.
They are connected by a hollow member 44, which is a bellows-shaped cushion outer skin made of a stretchable material.

Further, in FIG. 2a, 45 is a lock cylinder, 46 is a rod continuous to this lock cylinder 45, and 47 is a lock ring at the upper end of this rod 46, which is provided between two vibration isolators. Controls the contraction of the air action 33.

Next, the operation will be explained. When installing the optical device B on the bed 34, the height adjustment ring 43 is adjusted to have an appropriate thickness so that the bed 34 is level. Then, when air is forced in from the air injection port 38, the air cushion 33 expands, and the fitting between the pedestal 35 and the insertion table 40 is released, and the air cushion 33 becomes able to perform a vibration damping function. Even if processing is performed using a press machine in this state, the optical device B is not affected by vibrations because it is attached to the press frame 11 via a vibration isolator.

Next, when laser processing is performed, exhaust is performed from the air inlet 38. At the same time, the lock cylinder 45 is actuated to pull the rod 46 downward, and the lock ring 47 strongly presses the bed 34 downward. As a result, the convex portion 41 fits into the concave portion 36, and accurate positioning is performed by the slope thereof.

Thereafter, by driving the servo motor 26, the laser head position adjuster 25 moves the laser head 24.
The position is adjusted to match the material W to be processed, and laser processing is performed.

In this way, the vibration isolator performs vibration isolation and positioning.

In the above embodiment, both the concave part 36 and the convex part 41 of the fitting part 42 are configured with slopes, but it is only necessary to uniquely position them. Therefore, if at least one is a slope, the other may be a curved surface or the like. Furthermore, although four vibration isolators are provided on the bed 34, at least two vibration isolators may be provided with the fitting portions 42. Furthermore, the concave portion 36 and the convex portion 41 constituting the fitting portion 42 may be reversed vertically.

〔Effect of the invention〕

As explained above, this invention includes: a pedestal or insertion pedestal fixed to the press frame; an insertion pedestal or pedestal fixed to the optical device; a pedestal or insertion pedestal on the press frame; and an insertion pedestal fixed to the optical device. An expandable and contractible hollow member that is located between the bases or pedestals and accommodates gas; means for supplying and discharging gas into the hollow member; Since a fitting part is provided where the insertion table and the insertion table or cradle on the optical device side fit into each other, the air cushion provides sufficient vibration isolation during processing using a press machine, protecting the optical device from vibration. ,
Furthermore, when processing with laser light, accurate positioning is achieved by exhausting the vibration isolator. As described above, the present invention not only sufficiently prevents press vibration with a simple structure, but also has the excellent advantage of being able to accurately position an optical device that requires optical precision.

[Brief explanation of the drawing]

FIG. 1 is a side view showing the entire multitasking machine using the vibration isolator of the present invention, FIGS. 2a and 2b are a front view and a side view showing details of the peripheral parts of the vibration isolator in FIG. 1, FIG. 3 is a sectional view showing details of the main parts of the vibration isolator of the present invention. In the figure, indicates a press machine, indicates a laser processing device,
A is a laser oscillator, B is an optical device, is a vibration isolator, W is a workpiece material, 11 is a press frame, 1
2 is a hammer, 13 is an upper board, 14 is a lower board, 15
is a punch, 16 is a die, 17 is a press processing part, 1
8 is a positioning mechanism, 32 is a base, 33 is an air action, 34 is a bed, 35 is a pedestal, 36 is a recess, 38 is an air inlet, 40 is an insertion base, 41 is a convex part, 42 is a fitting part, 44 is a It is a hollow member.

Claims (1)

[Claims] 1 A hammer that can be driven in the vertical direction; a press frame that guides and holds this hammer; an upper substrate and a lower substrate supported by this press frame; an upper metal plate that is assembled to each of the upper substrate and lower substrate. a mold, a lower mold; a positioning mechanism placed between the upper mold and the lower mold, which positions the workpiece material to be processed at a desired position by driving the hammer and operating the upper mold; a control drive device that gives commands to the hammer and the positioning mechanism; a laser oscillator; and a laser oscillator that focuses the laser beam from the laser oscillator and irradiates it onto the workpiece material in order to process the workpiece material with a laser beam. In a vibration isolator for an optical device of a press machine having a press function and a laser function, the vibration isolating device includes: a cradle or an insertion table fixed to the press frame side; an insertion table or pedestal fixed to the optical device side; a stand; an expandable and contractible hollow member for accommodating gas between the cradle or insertion table on the press frame side and the insertion table or pedestal on the optical device side; supplying the gas into the hollow member; means for discharging the gas; and a fitting portion where the cradle or insertion pedestal on the press frame side and the insertion pedestal or pedestal on the optical device side fit into each other when the gas is discharged from the hollow member; A vibration isolating device for an optical device of a press machine, characterized by: