JPH0519198Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) The invention relates to a device for supporting and positioning the optical system in a multi-purpose processing machine that combines a punching press machine and a laser processing machine. , and more specifically,
The present invention relates to a device that supports an optical system part in a vibration-proof manner and can accurately position it during use.

(Prior Art) In order to improve the processing efficiency of plate-shaped workpieces, there is a multi-purpose processing machine that combines a punching press machine that performs punching processing and a laser processing machine that performs fusing processing. The laser processing machine described above is equipped with an optical system such as a laser oscillator and a laser processing head that irradiates a workpiece with a laser beam from the laser oscillator, and is susceptible to the adverse effects of vibration. On the other hand, the punching press machine
When punching a workpiece, extremely strong vibrations occur.

Therefore, in order to integrate the optical system of a laser processing machine into a punching press machine, it is necessary to use a vibration isolating device such as an air spring to protect the optical system of the laser processing machine from vibration. It is installed.

The multi-tasking machine does not perform punching and laser processing at the same time; for example, during punching, the optical system of the laser processing machine is supported by an air spring or the like. Then, during laser processing, the support of the optical system by air springs or the like is released and the optical system is placed in a fixed state. At this time, in order to accurately position the optical system of the laser processing machine, a positioning device using a taper pin or a V block is used.

(Problems to be Solved by the Invention) Conventionally, the air spring that supports the optical system of a laser processing machine and the positioning device that positions it when it is fixed have been provided individually, making assembly and adjustment difficult. In addition, the positioning device is one in which the taper pin, V block, etc. simply come into contact with each other due to the weight of the optical system, and there are problems such as an unstable fixation state.

(Means for Solving the Problems) In order to solve the conventional problems as described above, the present invention provides anti-vibration support for the optical system side of the laser processing machine against the base side of the press machine using a fluid pressure damping member. the first cylindrical member attached to the base side and the second cylindrical member attached to the optical system side are fitted together,
The tapered portion formed on the first cylindrical member and the tapered portion formed on the second cylindrical member are provided so as to be freely engageable and detachable, and when the respective tapered portions of the first and second cylindrical members abut and engage, A packing member is provided on one of the first cylindrical member and the second cylindrical member so that a fluid pressure chamber is formed between the first cylindrical member and the second cylindrical member. It is equipped with a supply/discharge port for supplying and discharging water.

(Function) In the above configuration, when fluid pressure is supplied to the fluid pressure buffer member, the first cylindrical member and the second cylindrical member are separated from each other, and the optical system side is connected to the base side via the fluid pressure buffer member. This prevents vibration from being transmitted from the base side. The fluid pressure within the fluid pressure buffering member is removed, and the tapered portion of the first cylindrical member and the second cylindrical member are
By engaging the tapered portion of the cylindrical member, the optical system side can be accurately positioned with respect to the base side. Further, when the working fluid is supplied into the fluid pressure chamber, both the tapered portions are pressed and are in a stable fixed state.

(Example) Referring to FIG. 1, a multi-purpose processing machine 1 embodying the present invention is constructed by mounting a laser oscillator 5 and a laser processing head 7 on a punching press machine 3. More specifically, the punching press machine 3 has a configuration in which a gate-shaped frame 11 is integrally provided on a common base 9, and the frame 11 has upper and lower turrets 13 equipped with a large number of punches and dies. A workpiece moving and positioning device 15 is provided which is rotatably supported and for horizontally moving and positioning a plate-shaped workpiece in the X-axis and Y-axis directions. Incidentally, since the punching press machine 3 having the above configuration is well known, further detailed explanation will be omitted.

The laser oscillator 5 is a punching press machine 3.
It is mounted on the common base 9 in close proximity to the common base 9. That is, a vibration isolation frame 19 is integrally attached to the common base 9 via a plurality of fastening members 17, and a plurality of positioning support devices 21 according to the present invention are mounted on the vibration isolation frame 19. A vibration isolating base 23 is supported via. and,
On this vibration isolation base 23, the laser oscillator 5
is installed.

More specifically, the vibration isolating frame 19 includes leg portions 19L at four corners, and a plurality of horizontal beam portions 19B in which the upper and lower portions of each leg portion 19L are interconnected with other leg portions 19L. It is formed into a box-like shape. The tightening member 17 is made of a tie rod, and is attached to each leg 1 of the vibration isolating frame 19.
9L, and its lower end is screwed onto the common base 9. By tightening the tightening member 17, the legs 19L of the vibration isolating frame 19 can be maintained in a high stress state, and the vibration damping ability of the vibration isolating frame 19 itself can be improved.

The positioning support device 21 includes a vibration isolation base 23
It is used to provide vibration-proof support for the laser oscillator 5 and to accurately position the laser oscillator 5 at a predetermined position via the vibration isolation base 23 when performing laser processing.
It is constructed as shown in FIG. That is, a cylindrical first cylindrical member 25 is integrally erected on the upper surface of each leg 19L of the vibration isolation frame 19 by bolts or the like. This first cylindrical member 2
A flange portion 25F is integrally attached to the lower part of 5, and a first tapered portion 25T is formed on the outer peripheral surface.

In this embodiment, the first cylindrical member 25 is
It is fitted into a cylindrical second cylindrical member 27 attached to the lower surface of the vibration isolating base 23. A flange portion 27F for attaching to the vibration isolating base 23 is integrally provided on the upper portion of the second cylindrical member 27, and a taper portion (tapered portion) that can be freely engaged and detached from the first tapered portion 25T is provided on the lower portion. A ring plate 27R with a hole 27T is integrally attached. A packing member 29 made of a rubber material or the like and having a damping effect by frictional contact with the inner peripheral surface of the second cylindrical member 27 is attached to the upper part of the first cylindrical member 25 via a back-up member. and,
When the tapered portion 25T of the first cylindrical member 25 and the tapered portion 27T of the second cylindrical member 27 abut and engage with each other, a portion surrounded by the first and second cylindrical members 25, 27 and the packing member 29 It is configured to form a fluid pressure chamber 31, and fluid supply/discharge ports 27H are provided at appropriate positions on the second cylindrical member 27.

Furthermore, within the first cylindrical member 25, a general air spring 33 is interposed between the flange portion 25F of the first cylindrical member 25 and the flange portion 27F of the second cylindrical member 27 as a fluid pressure buffer member. There is. An air supply/discharge port 25H communicating with the air spring 33 is provided at an appropriate position of the first cylindrical member 25. The air spring 33 has a small diameter orifice 3 formed in the flange portion 27F of the second cylindrical member 27.
5, it communicates with a surge tank 37 provided on the vibration isolation base 23.

As understood from the above configuration, the first cylindrical member 2
By engaging the tapered portion 25T of No. 5 and the tapered portion 27T of the second cylindrical member 27, the position of the second cylindrical member 27 with respect to the first cylindrical member 25 in a fixed state is regulated. Therefore, the relative positional relationship can always be accurately maintained, and by supplying the working fluid into the fluid pressure chamber 31, a stable fixed state can be obtained.

Moreover, in the first cylindrical member 25, the first and third
The flange portion 25F of the cylindrical members 25, 27,
Since the air spring 33 is internally installed between 27F, the air spring and the position regulating device are integrated into a unit, and assembly adjustment and assembly can be easily performed.

In addition, although the vibrations generated in the punching press machine 3 tend to be transmitted from the common base 9 to the laser oscillator 5, the vibrations are effectively isolated at the vibration isolating flange 19 and the positioning support device 21, and the vibrations are transmitted to the laser oscillator 5. The transmission of vibrations to is prevented.

The laser processing head 7 condenses the laser beam LB irradiated from the laser oscillator 5 to process the workpiece. It is supported so that its position can be adjusted freely. A bend mirror assembly 39 supported by the frame 11 via a suitable vibration isolator is disposed above the laser processing head 7, and the laser oscillator 5 is mounted in the bend mirror assembly 39. A bend mirror 41 that vertically bends the laser beam LB from the inside is installed.

Incidentally, the configuration for vertically moving the laser processing head 7 may be the same as the conventional structure, and the vibration isolating device supporting the laser processing head 7 and the bend mirror assembly 39 may be the same as the above-mentioned positioning support device 21.
can be adopted. Therefore, a description of the support structure for the laser processing head 7, bend mirror assembly 39, etc. will be omitted.

In the above configuration, the punch press machine 3
When performing the punching process, when compressed air is supplied into the air spring 33 installed in the positioning support device 21, the vibration isolation base 23 is pushed up and separated from the vibration isolation frame 19. Therefore, the intense vibrations generated during punching by the punching press machine 3 are caused by the joint between the common base 9 and the vibration isolation frame 19, the vibration isolation frame 19 itself, the air spring 33, the packing member 29, and the second cylinder member 27. Vibration is eliminated by allowing the air in the contact portion and the air spring 33 to temporarily flow into the surge tank 37. That is, the vibrations of the punching press machine 3 are not transmitted to the laser oscillator 5, and the laser oscillator 5 is protected from vibrations. Note that vibration isolation similar to the above is also performed in the laser processing head 7 and the bend mirror assembly 39.

When the punching press 3 is stopped and laser processing is to be performed, the air in the air spring 33 is discharged, and the vibration isolation base 23 and the like are lowered by their own weight.
The tapered portion 25T of the cylindrical member 25 and the tapered portion 27T of the second cylindrical member 27 are aligned with each other, and the vibration isolation frame 23,
The laser oscillator 5 and other components are positioned. Furthermore, the alignment of the two tapered portions 25T, 27T forms a closed fluid pressure chamber 31. Therefore, by supplying the working fluid into the fluid pressure chamber 31, the alignment of the two tapered portions 25T, 27T is more reliably achieved and the tapered portions are stably fixed. In other words, the positioning of the laser oscillator 5 is always accurately achieved.

By the way, the present invention is not limited to the above embodiments, but can be implemented in other forms by making appropriate changes. For example, it is possible to reverse the fitting relationship between the first cylinder member and the second cylinder member, or to reverse the positional relationship between the air spring and the fluid pressure chamber.

(Effects of the invention) As can be understood from the explanation of the embodiments above, the gist of the invention is as stated in the claims of the utility model registration. The positioning device supporting the optical system can be handled as a unit, and assembly adjustment and assembly are easy. Also,
During laser processing, it is possible to accurately position the laser oscillator, etc., and a stable fixed state can be obtained.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a front view of a processing machine in which the present invention is implemented, partially shown in cross section. FIG. 2 is an enlarged detailed sectional view of the arrowed portion in FIG. 1. 9... Common base, 25... First cylinder member, 2
7...Second cylindrical member, 25T...Tapered portion, 27T
...Tapered portion, 33...Air spring, 31...Fluid pressure chamber.

Claims (1)

[Claims for Utility Model Registration] (1) The optical system side of the laser processing machine is provided with anti-vibration support by a fluid pressure buffer member 33 relative to the base side of the press machine, and the first cylindrical member is attached to the base side. 25 and a second cylindrical member 27 attached to the optical system side are fitted, and the tapered portion 25T formed on the first cylindrical member 25 and the tapered portion 27T formed on the second cylindrical member 27 can be freely engaged and detached. provided in the first,
A fluid pressure chamber 31 is formed between the first cylindrical member 25 and the second cylindrical member 27 when the tapered portions 25T, 27T of the second cylindrical members 25, 27 abut and engage with each other. A composite structure characterized in that a packing member 29 is provided on one of the first cylindrical member 25 and the second cylindrical member 27, and a supply/discharge port 27H for supplying and discharging fluid to and from the fluid pressure chamber 31 is provided. Optical system positioning and support device in processing machines. (2) The optical system positioning and supporting device according to claim 1, wherein the fluid pressure buffer member 33 is connected to a surge tank 37 via an orifice 35.