JPS63144922A - Combined cutting device for nonferrous metal - Google Patents

Abstract

PURPOSE:To carry out the processings in the installation and demounting process for a workpiece in each one time by constituting the captioned device in which a cutting torch and a vertical working spindle for finishing-working the cut surface after cutting are provided, and a plurality of jigs each of which is equipped with a rod-shaped supporting body and a lift mechanism are installed onto a table. CONSTITUTION:A workpiece W fixed onto a jig 18 on a table 10 is cut by the laser and plasma which are jetted from the nozzle of a cutting torch 12. Then, the cut workpiece W is lifted up to the position where polishing work is permitted in the fixed state onto the jig 18, and the side surface, i.e., the cut edge surface is polishing-worked by a polishing tool 14 installed onto a working spindle 13. Therefore, the installation process and demounting process for the workpiece W are carried out enough in each one time before and after the complex work, and the need of transferring the workpiece W onto other device is avoided, and the center adjusting process can be omitted, and the precision can be improved.

Description

[Detailed Description of the Invention] Technical Field of the Invention The present invention is used for cutting non-ferrous metals such as aluminum, copper, and titanium. The present invention relates to a composite cutting device for non-ferrous metals, which is equipped with a vertical machining spindle for finishing the cut surface of a non-ferrous metal.

Conventional technology Conventionally, in non-ferrous metals such as aluminum, hollow metals, and titanium, in order to reduce the surface force when cut, it is necessary to perform a cutting process using a cutting torch using, for example, a laser or plasma, and then cutting the workpiece. The finishing polishing process using the surface polishing tool is performed in separate steps. Therefore, first, the workpiece is fixed to the mounting jig of the cutting surface and cut with a laser of a cutting torch, and then the cut workpiece is attached to the cutting device from the mounting jig of the IgT device to the polishing device. The material was transferred to a jig and the cut surface of the workpiece was polished.

However, according to this processing method, there are two steps: attaching and removing the workpiece to a mounting jig on the cutting device side, and attaching and removing the workpiece to a separately installed mounting jig on the polishing device side. each process is required,
As a result, the workpiece installation and removal steps each had to be performed twice. Furthermore, when attaching a workpiece cut by a laser, plasma, etc. to a polishing device, a centering process must be added, and the attachment process is troublesome.

OBJECTS OF THE INVENTION Therefore, an object of the present invention was made in view of the above-mentioned drawbacks, and it is an object of the present invention to reduce the workpiece installation and removal steps to one time each for cutting and polishing, and to eliminate the centering step. Composite cutting of non-ferrous metals that eliminates the need for and improves precision! The objective is to provide an lr device.

Summary of the Invention Therefore, the composite cutting device for non-ferrous metals of the present invention includes a cutting torch using a laser, plasma, etc. in the processing head;
The table has a vertical machining spindle for finishing the cut surface after cutting, and horizontally supports the metal plate material to be processed, and has rod-shaped supports arranged to support the entire surface of the workpiece. It is movable and fixed between the body and the array so that it can be positioned, and the workpiece that has been cut is suctioned and fixed, pulled up, the original metal plate and the metal plate after cutting are placed at different levels, and the surrounding area is moved and fixed. The structure includes a plurality of jigs having a lift i structure for facilitating cutting surface processing from the side. With this configuration, the workpiece fixed to the jig is cut by laser, plasma, etc. ejected from the nozzle of the cutting torch, and then the cut workpiece is fixed to the jig. It is lifted to a position where it can be polished in its original state, and in this state, it is polished from the side surface, that is, from the cut end surface. Therefore, the process of attaching and removing the workpiece only needs to be carried out once before and after the composite processing, and since there is no need to move the workpiece to another device, the centering process can also be omitted.

Structure of the Embodiment Next, FIG. 1 shows the overall structure of a composite cutting device 1 for non-ferrous metals according to the present invention.

The processing head 2 of the composite cutting device 1 for nonferrous metals includes a cutting torch 12 that uses plasma and a vertical direction for finishing the cut surface after cutting a workpiece W of a nonferrous metal plate such as aluminum, copper, titanium, etc. The structure includes a machining main shaft 13, which is attached to the saddle 7 so as to be movable in the Z direction. In addition, the saddle 7 is supported in a freely movable manner in the Y direction with respect to a cross beam 6 held horizontally so as to be freely movable in the X direction, and a servo fixed to the cross beam 6 (not shown) It is designed to be driven in the Y direction by a motor and a feed unit. - The cross beam 6 is slidably supported on a bed 11 while straddling a table 10 extending in the X direction. This sliding mechanism is composed of a guide track 9a provided on the machine base 9, a servo motor 15, a feed screw 16, etc., and these allow the cross beam 6 to move in the X direction. ing.

Further, the processing spindle 13 is a high-speed router spindle,
A polishing tool 14 such as a drum sander is attached to the shaft end. When performing polishing, the processing head 2 is positioned by protruding a predetermined amount in the axial direction (Z direction) using a screw (not shown) by driving the servo motor 8 or the like. Note that the cutting torch 12 and polishing tool 14 are attached so as not to interfere with each other on the workpiece W while other processing is being performed. Further, although not shown in the drawings, the cutting torch 12 is provided with a rotational positioning mechanism for bevel angle correction and a temporary structure that allows the cutting torch 12 to be tilted at any angle using a servo motor 56. Furthermore, a servo motor 57 for rotationally driving the machining spindle 13 is disposed on the rear side of the machining spindle 13.

Further, the workpiece W is placed and supported on a table 10, and as shown in FIG. A large number of arranged rod-shaped supports 17 are provided, and between these many rod-shaped supports 17, a workpiece W which has been cut and which can be moved and fixed in a positionable manner is fixed by suction. , a plurality of jigs 18 having a lift function are provided to facilitate machining of the peripheral portions thereof.

That is, as shown in detail in FIGS. 3 and 4, this jig 18 includes a base 20 on the lower surface of which a ball screw nut 19 is attached.

A screw shaft 21 is screwed into the nut 19, and both ends of the screw shaft 21 are rotatably supported with respect to the frame 10a of the table 10 by a bearing block or the like.

This screw shaft 21 has an electric screwdriver or a handle 2.
1a are connected, and by these, the screw/shaft 21
is driven in rotation. Further, as the screw shaft 21 rotates, the base 20 is moved in the axial direction of the screw shaft 21 while being guided by the support 55 .

On the other hand, at both ends of the base 20, cylinder rods 22 constituting a guide section are erected and fixed, as is clear from FIG. It is fitted in so that it can be raised and lowered by the portion 24a. Moreover, inside this vertical lift member 23,
As shown in detail in FIG. 4, a hole 24 formed in a two-step cylindrical shape is provided. The inner diameter of the large diameter portion 24a of this hole 24 is formed larger than the outer diameter of the cylinder rod 22, and the large diameter portion 24a and the cylinder rod 2
An air cylinder 25 is defined between the two.

A bracket 26 is arranged on the lower end side of the air cylinder 25 so as to close the lower end side, and this bracket 26 is fixedly attached to the bottom of the vertical lift member 23. Further, a seal member 27 is attached to the inner peripheral surface of the bracket 26 in order to maintain airtightness between the bracket 26 and the upper and lower lift members 23.

Further, a piston 28 is fixed at a position approximately midway between the upper and lower sides of the cylinder mouth/throat 22.
An O-ring 29 is attached to the outer peripheral surface of 8. The piston 28 comes into contact with the inner wall surface of the large diameter portion 24a of the air cylinder 25 via an O-ring 29. Further, the air cylinder 25 is divided into upper and lower sections by the piston 28, and the upper chamber 25a and lower chamber 25b of the air cylinder 25 are connected to the compressor 30 through an electromagnetic switching valve 31, as shown in FIG. It is connected to the. The cylinder rod 22 and the air cylinder 25 constitute a vertical lift unit tlt that lifts the vertical lift member 23.

Further, a hole 2 provided inside the vertical lift member 23
The inner diameter of the small diameter portion 24b of No. 4 is equal to the cylinder loft 22.
The small diameter portion 2 is formed to be approximately equal to the outer diameter of the
The inner wall surface of 4b forms a guide surface for the vertical lift member 23. This guide surface serves to maintain the posture of the vertical lift member 23 when the vertical lift member 23 moves up and down along the cylinder rod 22.

Further, a reference surface 32 for holding the workpiece W is formed on the upper surface side of the vertical lift member 23.

On the other hand, a suction and suction fixing mechanism 33 is provided approximately at the center of the base 20. This suction suction fixing mechanism 3
3 is a sliding suction tube 34 which is slidably mounted in the vertical direction by the vertical lift member 23 and has a notch 34a at the lower end, and a sliding suction tube 34 fixed to the upper end of the sliding suction tube 34 and made of Teflon or the like. A large suction pad 35 , a vacuum cylinder 36 configured to pull down the sliding suction tube 34 and the large suction pad 35 during suction, and press the workpiece W on the large suction pad 35 against the reference surface 32 , and a sliding The temporary spring receiver 37 and base t7i 37 fixed in the suction tube 34
a return spring 3 for pushing the large suction pad 35 upward when the workpiece W is opened.
It consists of 8.

Further, the vacuum cylinder 36 is moved into the upper chamber 36a by a piston 39 fixed to the outer peripheral side of the lower end of the sliding suction pipe 34.
, and a lower chamber 36b. The upper chamber 36a of the vacuum cylinder 36 communicates with the atmosphere via a filter 40, and the lower chamber 36b communicates with a vacuum tank 42 and a vacuum pump via an electromagnetic switching valve 41, as shown in FIG. 4
Connected to 3.

Therefore, at all times, that is, in a state where no negative pressure is applied to the lower chamber 36b, the sliding suction pipe 34 is
As shown in the figure, the large suction pad 35 is pushed upward by the elastic force of the return spring 38, and the upper surface 35a of the large suction pad 35 slightly protrudes upward from the reference surface 32. Note that, at this time, the piston 39 is in contact with the upper wall surface of the upper chamber 36a of the vacuum cylinder 36.

Further, as shown in FIG. 3, the vertical lift member 23 has a recessed portion 44 in which a large suction pad 35 can be accommodated.
is provided, and the workpiece W is placed on the large suction pad 35.
is placed, or when negative pressure is introduced into the lower chamber 36b, the lower end of the sliding suction tube 34 comes into contact with the substrate 37a, and the large suction pad 35 is housed in the recess 44. It has become so. At this time, large suction pad 35
The upper surface 35a and the reference surface 32 are arranged to substantially coincide with each other.

Further, the vertical lift member 23 is connected to the suction suction fixing mechanism 3.
3, the structure includes a fixing mechanism 45 used during cutting and when undergoing additional processing. This fixing mechanism 45 is composed of a pair of table fixing magnets 46 attached to the vertical lift member 23. This electromagnetic magnet 46 is connected to a steel plate clamp fixed to the base 20. The electromagnetic magnet 46 is suctioned and fixed to a temporary 47 (see FIGS. 2 and 4).The electromagnetic magnet 46 is connected to a control panel 49 via an electromagnetic switch 48, as shown in FIG. Note that the control circuits for the vertical lift member 23, large suction pad 35, and electromagnetic magnet 46 described above are the control circuits for the first jig 18 located on the left end side in FIG. However, the control circuits of other jigs 18 located on the right side of this jig 18 are also constructed in the same way, as shown in FIG.

Further, each of the servo motors 8, 15, etc. is driven by the operation panel 50, and moves the processing head 2 in the X direction, the Y direction, and the Z direction. In addition, plasma electron a (not shown)
The plasma gas and electric wire from the cutting torch 12 are guided to the cutting torch 12 which is attached to the saddle 7 and has a bevel angle correction mechanism, through the interior of a bellows-shaped guide tube 52 that can be expanded and contracted.

Function of the Embodiment Next, the function of the composite cutting device 1 for non-ferrous metals constructed as described above will be explained.

Based on a control program in which position data is input in advance by tapping the workpiece W, the operation panel 50 moves the machining head 2 along a predetermined machining trajectory number and the nozzle 12a of the cutting torch 12. The processing point on the workpiece W is moved while changing the direction.

During such movement, the plasma power source passes through the guide tube 52 by electric wires and reaches the cutting torch 12 from the upper part of the processing hemlock 2, where it causes an arc discharge and discharges the nozzle 1.
2a becomes a plasma jet, which is injected toward the workpiece W to cut the workpiece W fixed to the jig 18 via the suction suction fixing mechanism 33. In the case of using a laser, a laser beam emitted from a laser oscillator is deflected onto the processing end 2 by a plurality of mirrors, and is irradiated onto the workpiece W by a nozzle 12a having a condensing lens.

Next, the cut workpiece W is lifted to a position where it can be sharpened while being fixed to the jig 18. In other words, the processing master i+I! A polishing tool 14 such as a drum sander is attached to the shaft end of the jig 13 in advance, and the cut workpiece "V!IJw" is removed by the polishing tool 14 by operating the vertical lift mechanism of the jig 18. It is lifted to a position where polishing can be performed.At this time, the remaining plate material is at the height for cutting.Then, in this state, the processing head 2 performs polishing of the workpiece W according to the control program. After the polishing process, the vertical lift member 23 is moved by operating the vertical lift mechanism of the jig 18 again.
is lowered, and then the suction fixation of the workpiece W is released and the workpiece W is removed from the jig 18. Furthermore, during the polishing process,
Of course, the cutting torch 12 is moved back to avoid interference with the workpiece W.

Other Embodiments In the embodiments described above, the cutting torch 12 uses a plasma jet, and the workpiece W is cut by ejecting the plasma jet from the cutting torch 12. However, the present invention is not limited to this, and it goes without saying that a cutting torch using a laser or the like may be used. In addition, the processing head 2 is
, z directions and may be attached to an orthogonal robot. Further, in the above embodiment, the processing head 2 is moved forward by driving the servo motor 8 during polishing, but a cylinder may be used as the driving means.

DETAILED DESCRIPTION OF THE INVENTION According to the composite cutting device for non-ferrous metals according to the present invention, the processing head includes a cutting torch using a laser, plasma, etc., and a vertical processing spindle for finishing the cut surface after cutting. On the other hand, the table side is equipped with a support body that supports the workpiece, a suction adsorption fixing mechanism provided between the supports, and a plurality of jigs that have a lift mechanism that raises and lowers the workpiece. As a result, the cutting of non-ferrous metals and the subsequent finishing and polishing of the cut surface can now be performed continuously. Therefore, it is possible to eliminate the process of attaching and detaching the workpiece, which is necessary for the transition from cutting to polishing of non-ferrous metals, thereby simplifying the process of attaching and detaching the workpiece. Furthermore, since there is no need to move the workpiece to another jig during the machining process, the centering process can also be omitted. Therefore, it is possible to improve cutting accuracy.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of a composite cutting device for non-ferrous metals according to the present invention, FIG. 2 is a plan view of a table, and FIG. 3 is a partially cutaway front view showing an embodiment of a jig. Figure 4 is the third
FIG. 5 is a sectional view taken along the line IV--IV, and is a control circuit diagram of the jig. 1. Composite cutting device for non-ferrous metals, 2. Processing head, 1
0...Table, 12...Cutting torch, 13...Machining spindle, 14...Polishing tool, 18...Jig, 23...Vertical lift member, 33...Adsorption suction fixing mechanism, 34...Sliding suction Tube, 35...Large suction pad, 36...Vacuum cylinder, 45...Fixing mechanism, 46...Electromagnetic magnet.

Claims (3)

[Claims] (1) A table that horizontally supports a workpiece made of a non-ferrous metal plate, and a table that can be arbitrarily positioned and moved above the metal plate in the X and Y directions parallel to the metal plate and perpendicular to the workpiece.
In a cutting device having a machining head that can be positioned in a direction, the machining head includes a cutting torch using a laser, plasma, etc., and a vertical machining spindle for finishing the cut surface after cutting; Rod-shaped supports are arranged to support the entire surface of the metal plate material of the workpiece, and the workpiece can be moved and fixed in a positionable manner between the arrays, and the workpiece that has been cut is fixed by suction to process the surrounding area. A composite cutting device for non-ferrous metals, characterized in that it incorporates a plurality of jigs having a lift mechanism for making it easier to receive the metal. (2) A non-ferrous metal composite according to claim 1, characterized in that the cutting torch is provided with a rotational positioning mechanism for bevel angle correction and a mechanism that allows the cutting torch to be tilted at any angle. Cutting device. (3) The composite cutting device for non-ferrous metals according to claim 1, wherein the processing main shaft is a high-speed router main shaft, and an abrasive tool such as a drum sander is attached to the end of the shaft.