JPS63144925A - Clamp lifter device for cut surface working - Google Patents

Abstract

PURPOSE:To omit the clamping operation and center adjusting operation in the cut surface working by cut-separating a material having an arbitrary shape from a thick plate material and guiding said material in clamped state to the next cut surface finishing work position. CONSTITUTION:A thick plate member 41 is positioned and fixed in the clamped state by an absorbing pad 23 on a lift body 4 side. In this state, the cutting work a the primary work is carried out, and a material 42 which is cut- separated in an arbitrary shape from the thick plate member 41 through the cut work and in the positioning-clamped state is pulled up to the cut surface finishing work position as the secondary work by a vertical lift mechanism, and the finishing work for the cut surface is carried out. Therefore, the positioning in the cutting work and the clamped state can be utilized for the next cut surface finishing work. Therefore, the need of unclamping, positioning and clamping operation is avoided even in the transient process from the cutting work to the cut surface finishing, and a series of continuous works can be carried out continuously without carrying out the preparatory replacement.

Description

[Detailed Description of the Invention] Technical Field of the Invention The present invention involves cutting a thick plate material in a clamped state into an arbitrary shape, pulling the cut material up to a predetermined height, and finishing the cut surface of the material. This invention relates to a clamp lifter device for.

BACKGROUND OF THE INVENTION Arbitrarily shaped blanks are usually separated from a predetermined shaped slab after the manufacturing process. During this cutting process, the plank material is held in a clamped state at the cutting position.

If the cut edge of the material after cutting and rinsing needs to be finished, the material of arbitrary shape is removed from the cutting position and guided to the finishing position at a new height in a positioning state, where it is again placed. It is considered to be in a clamped state. In this way, when two machining processes are performed consecutively, the thick plate material and the material after separation are on the same plane at the first cutting position, which usually makes it difficult to finish the cut surface afterwards. , it is necessary to set a new processing position higher than the cutting processing position. In this case, it is essential to align and center the material at a new finishing position, as well as subsequent clamping operations, which makes the setup complicated.

OBJECT OF THE INVENTION Accordingly, an object of the present invention is to cut a material of an arbitrary shape from a thick plate material and then guide the material in a clamped state to the next cutting surface finishing position, thereby improving clamping during cutting surface processing. The purpose is to make it possible to omit operations and centering operations.

SUMMARY OF THE INVENTION Therefore, the present invention provides a plurality of jig bodies on a machine table, a lift body on each jig body that can be raised and lowered by a vertical lift mechanism, and a thick plate material is suctioned on the upper surface of the lift body. At the time of the first cutting process, the lift main body 4 is in the cutting position, and the thick plate material is positioned and clamped by the suction mechanism.Then, when this cutting process is completed, Then, the lift body is raised by the vertical lift mechanism, and the material of any shape is raised to the cutting surface finishing position while positioning and clamping the material.At this raised position, the cut surface of the material is the same as the rest of the initial cutting position. Since it is at a different level at a higher level than the thick plate material, the cutting surface can be finished continuously without being restricted by the initial thick plate material or the members that support it.

Structure of the Invention FIGS. 1 to 4 show the mechanical structure of the clamp lifter device 1 for machining cut surfaces of the present invention, and FIG. 5 shows the structure of the drive piping system and the electric system.

As shown in FIGS. 1 to 40, this clamp lifter device 1 for machining a cutting surface is operated by a plurality of, for example, seven jig bodies 3 and a lift body 4 attached to each jig body 3, on the upper surface of a machine table 2. It is configured. In this embodiment, the lift body 4 includes a lift mechanism, as will be described later.

The above-mentioned 1M table 2 is framed, for example, in a rectangular shape that is long in the X-axis direction, and is supported by a plurality of support frames 5 in the Y-axis direction, and a large number of columns 6 of the same height. A plate 7 and a pair of supports 8 are held in the Y-axis direction. Further, these support frames 5 rotatably support a screw shaft 9 in the Y-axis direction between the supports 6 by bearings or the like. Note that this screw shaft 9 is connected at its distal end to a handle 10 or a drive unit replacing it.

Then, the jig main body 3 is in contact with the pair of supports 8 on the lower side of the inclined guide surface 1) by a sliding pair or rolling pair while straddling the screw shaft 9, and is connected to the pair of supports 8 by a lower feed nut 12. It is connected to the screw shaft 9 in a screw pair, and furthermore, two cylinder ports/nodes 13 are connected to the screw shaft 9 at approximately the center position in the front and back in the Y-axis direction, that is, in the direction of movement.
is fixed in an upright position. Note that the upper part of the screw shaft 9 is
It is covered with a cover 9a.

Next, the lift main body 4 is located above the jig main body 3 and is fitted into the cylinder rod 13 at the front and rear guide holes 14 so as to be vertically movable, and is attached to the lower surface of the lift main body 4 below the cylinder rod 13. An air cylinder 16 which is slidably fitted into a piston 16a of the cylinder rod 13 is integrally formed with the bracket 15. Note that, like the guide hole 14, the bracket 15 is slidably fitted into the cylinder rod 13 in an airtight manner through a central guide hole 15a.

The pair of cylinder rods 13 and air cylinder 16 constitute a vertical lift mechanism. The lift main body 4 also accommodates an electromagnet 17 as a fixing mechanism at the front and back positions on one side. This electromagnet 17
The electromagnetic coil 18 is housed in the outer periphery of an iron core 19, and the iron core 19 can form a closed magnetic path with the clamp plate 7 using the lift body 4 as the magnetic path.

In addition, the lift body 4 has a circular depression 20 formed at the center of its upper surface, and a reference surface 22 is formed by the upper surface of an annular reference piece 21 along the outer periphery of the depression 20. It stores 23. This suction pad 23 is fixed upwardly at the upper end of the sliding suction tube 24 in a slightly higher state than the reference surface 22. The sliding suction tube 24 is fitted inside a vertical sliding guide hole 25 of the lift body 4 so as to be able to move up and down, and is connected to a piston 26 at its lower end, and is always directed upward by a return spring 27. biased in the direction.

The piston 26 is movable in the vertical direction inside a vacuum cylinder 28 formed by the lift body 4 and a cover 29 attached to the lower surface thereof. The upper limit of this sliding suction tube 24 is regulated by the abutting relationship between the piston 26 and the upper wall surface of the vacuum cylinder 28, and the lower limit is regulated by the abutting relationship between the cover 29 and the sliding guide tube 24. has been done. The interior of the suction pad 23 passes through the interior of the sliding suction tube 24 and further communicates with the lower chamber of the vacuum cylinder 28 via a notch 30 at its lower end. The chamber above the vacuum cylinder 28 is connected to the atmosphere from the well 20 through a port 31 and a filter 32. An annular dust guard 33 is fixed to the bottom of the hollow 20.

Then, the suction pad 23, the sliding suction pipe 24, the return spring 2
7 and the vacuum cylinder 28 constitute a suction mechanism.

Next, the air cylinder 16 as a vertical lift mechanism is
As shown in FIG. 5, it is connected to a compressor 35 via an electromagnetic switching valve 34. Also, vacuum cylinder 2
8 is connected to a vacuum pump 37 via an electromagnetic switching valve 40 and a vacuum tank 36. Further, the two electromagnetic coils 18 are connected to a control panel 39 via an electromagnetic switch 38. Further, this control panel 39 also performs switching control of the electromagnetic switching valves 34 and 40.

Operation of the Invention At the initial cutting stage, the lift body 4 is at its maximum lowered position, as shown in FIGS. 2 and 4. In this state, the thick plate material 41 to be cut is placed on the numerous supports 6 and the reference plane 22.

At this time, all or part of the seven jig bodies 3 and lift bodies 4 are formed by the shape of the thick plate material 41 at the manufacturing stage and the material 42 cut into an arbitrary shape from this thick plate material 41.
In order to hold the material 42 to be finally cut out in a stable state while maintaining its flatness, the material 42 is placed at an appropriate position in a plane to avoid the cutting surface.

Of course, this movement of the jig main body 3 is performed by rotating the screw shaft 9. That is, when the screw shaft 9 rotates, the jig main body 3 is supported by the pair of supports 8 together with the feed nut 12, while maintaining a horizontal posture
Move in the axial direction. By this movement, the plurality of jig bodies 3 and lift bodies 4 are placed at appropriate positions while avoiding the cutting line during the cutting process. Moreover, after this, the electromagnetic coil 18 becomes energized, so the electromagnet 17 magnetically attracts the clamp plate 7 and the jig body 3 and the lift body 4.
is fixed.

In this state, when the electromagnetic switching valve 40 operates and the lower chamber of the vacuum cylinder 28 is connected to the vacuum tank 36 and the vacuum pump 37, the suction pad 23 is moved to the lower surface of the thick plate material 41 by the internal negative pressure. It comes into close contact and is fixed while adsorbing it. At the same time, the piston 26 moves downward against the return spring 27 inside the vacuum cylinder 28, so that the thick plate 41, while being fixed to the suction pad 23, rides on the reference surface 22 as it descends, and moves on top of it. When it is fixed at the cutting position, it is in a clamped state. Furthermore, at this time,
Air enters the upper chamber of the vacuum cylinder 28 from the outside via a port 31 and a filter 32. In this clamped state, as shown in FIG. 2, the thick plate material 41 is cut into an arbitrary shape by a processing head 43 of a plasma or laser cutting device, and a material 42 having an arbitrary shape is obtained. This material 4
2 is separated from the thick plate material 41, this material 42
Since the thick plate material 41 and the thick plate material 41 are on the same plane, it is impossible to finish the cut end surface of the material 42 in this state.

Therefore, the material 42 after separation is guided by the lift main body 4 in a positioned state and in a clamped state to a cutting surface finishing position higher than the cutting position.

First, the current of the electromagnetic coil 18 is turned off, and then the electromagnetic switching valve 34 is switched by the control panel 39, and the compressor 35 is connected to the upper chamber of the air cylinder 16 as a vertical lift +-i structure on the lower side of the material 42. Compressed air is supplied. At this time, the lift main body 4 is guided by the guide hole 14 and the bracket 15 and moves upward, and as shown in FIG. move it to. In this state, the electromagnetic switch 38 is turned on and current is passed through the electromagnetic coil 18, so the electromagnet 17 magnetically attracts the clamp plate 7 again, fixing the lift body 4 in the raised position to the clamp plate 7, It is stopped in the vertical direction and movement direction. Of course, at this time, the lower lift main body 4 of the thick plate material 41 has not been raised, so the thick plate material 41 is still in the cutting position and has not been raised. In this way, as the lift main body 4 below the material 42 rises, the cut surface of the material 42 cut into an arbitrary shape is separated from the cut surface of the thick plate material 41, and the height is different from each other, and the cut surface of the material 42 is separated from the cut surface of the thick plate material 41. It is now ready for finishing processing from the side.

In this way, in a series of processes in which the material 42 is separated from the thick plate material 41 by cutting and guided to a higher cutting surface finishing position, the positioning and clamping conditions of the initial cutting are maintained as they are. Therefore, new positioning (centering) is performed with a cutting surface finishing value of 1.
This eliminates the need for unclamping and clamping operations. When finishing the cut surface is completed, the electromagnetic switching valve 34 is switched and the upper chamber of the air cylinder 16 is connected to the atmosphere at the electromagnetic switching valve 34, and the lift main body 4 Due to its own weight and the weight of the material 42, it descends according to the air discharge speed and returns to the original cutting position. This operation can also be performed by changing the type of electromagnetic switching valve 34 to force the lowering down instead of using its own weight. After that, when the lower chamber of the vacuum cylinder 28 is vented to the atmosphere by the electromagnetic switching valve 40, the suction pad 23 loses its internal negative pressure, stops adsorbing the material 42, and brings it into an unclamped state. shall be.

At the same time, the sliding suction tube 24 rises under the force of the return spring 27, releasing the material 42 in a state slightly raised above the reference surface 22.

Modifications of the Invention In the above embodiment, the air cylinder 16 is formed on the side of the lift body 4 as a vertical lift mechanism, but the air cylinder 16 may be attached on the side of the jig body 3.

Furthermore, the jig main body 3 may slide directly on the support frame 5 using the guide surface 1) on the lower surface thereof, and may move while maintaining a horizontal posture. Furthermore 1. Although the sliding suction pipe 24 and the vacuum cylinder 28 also serve as a path for the suction air flow to the suction pant 23, the suction operation of the suction pad 23 may be performed through a piping route separate from the vacuum cylinder 28. Therefore, the sliding suction tube 24 may be solid instead of hollow.

Effects of the Invention In the present invention, the thick plate material is positioned and fixed in a clamped state by the suction pad on the lift main body side, and cutting is performed as the primary processing in this state, and by this cutting process, the thick plate material is cut into an arbitrary shape. While the material is still in the positioning and clamping state, the vertical lift mechanism lifts it up to the position for finishing the cut surface as secondary processing, and finishing the cut surface is performed there. The state can be used as is for the next cutting surface finishing process. Therefore, unclamping, subsequent positioning (centering), and clamping operations are not required even during multiple processes from cutting to tread surface finishing, and a series of continuous machining operations can be performed continuously without changing setups. Can be done efficiently.

[Brief explanation of the drawing]

FIG. 1 is an overall plan view of the clamp lifter device for machining cut surfaces of the present invention, FIGS. 2 and 3 are partially cutaway side views of the main parts of the clamp lifter device, and FIG. 4 is the same as that of FIG. rV
A sectional view taken along the -rV line, and FIG. 5 is a block diagram of the piping system and electrical system. 1. Clamp lifter device for cutting surface processing, 2. Machine table, 3.・Jig body, 4. Lift body, 5.
・Support frame, 6. Support, 7. Clamp operation, 8. Support, 9. Screw shaft, 1). Guide surface, 12. Feed nut, 13. Cylinder rond, 16. Air cylinder. , 17... Electromagnet, 22... Reference plane, 23...
Suction pad, 24...Sliding suction pipe, 27...Return spring,
28...Vacuum cylinder, 41...Thick plate material, 42...Material. Patent Applicant: Hichisentoyama Co., Ltd. Figure 4

Claims (4)

[Claims] (1) In a clamp device that holds a material to be cut into an arbitrary shape from a thick plate material, a jig body including a feed nut for movable with a screw shaft and a guide surface for maintaining the posture during movement, and a vertical lift mechanism having a stroke of A clamp lifter device for machining cut surfaces, comprising a lift body including a fixing mechanism for stabilizing the lift body. (2) The clamp lifter device for cutting surface machining according to claim 1, wherein the vertical lift mechanism is constituted by a pair of air cylinders and a cylinder rod. (3) The suction mechanism includes a suction pad, a sliding suction tube that pulls down the suction pad, a vacuum cylinder that pulls down the sliding suction tube and the suction pad to press the material against the reference surface during suction, and release of the material. 2. The clamp lifter device for cutting surface machining according to claim 1, further comprising a return spring for pushing the suction pad upward. (4) The clamp lifter device for cutting surface machining according to claim 1, wherein the fixing mechanism is constituted by a pair of electromagnets and is fixed to the clamp plate of the machine table by magnetic force.