JPS632580A - Table for laser beam machine - Google Patents

Abstract

PURPOSE:To smoothly perform the laser beam machining of a tall work by providing the lift platform to load the work via a lift driving means freely ascendably and descendably on the fitting member of a table. CONSTITUTION:A work 16 is loaded on the loading surface 15g of the lift platform 15 of a table 3. When a handle 12 is manually turned in H direction, a main shaft 10a is rotated in H direction together with a sprocket 11a. The lift platform 15 is thus descended in the arrow mark F direction and located at the prescribed position by adjusting this descent position. A torch 6 is adequately moved and located at the position apart by the prescribed distance to the upper part from a work face 16a. The laser light is projected simultaneously from the torch 6 for the work face to work a work 16. The handle 12 is then turned in the opposite direction (G direction) to ascend the lift platform 15 and the work 16 is taken up. In this way, even the working of the tall work 16 exceeding the ordinary movement stroke of a torch can smoothly be performed.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to a table for a laser beam machine that can raise and lower a workpiece according to the shape of the workpiece.

(b), Conventional technology Normally, when processing a workpiece with a laser processing machine, the workpiece to be processed is mounted on the top surface of the table of the laser processing machine, and in this state, the workpiece is placed a predetermined distance above the processing surface of the workpiece. A laser beam is emitted from the tip of the torch positioned at a remote processing reference position to cut the processing surface. At this time, the torch is provided so that it can move by a predetermined stroke in the vertical direction so that the tip of the torch can be positioned at the processing reference position even for workpieces of various shapes.

(C) 0 Problems to be Solved by the Invention However, this method has the disadvantage that it is not possible to process tall workpieces having a height greater than the -chamber. That is, for example, when a box-shaped workpiece is mounted on the above-mentioned table top surface, the processing surface is located relatively far above the table top surface.
Even if the torch is moved upward to the maximum extent of its stroke, the tip of the torch cannot be positioned at the processing reference position, making it impossible to process the workpiece.

SUMMARY OF THE INVENTION In order to eliminate the above-mentioned drawbacks, it is an object of the present invention to provide a table for a laser processing machine that can smoothly process tall workpieces.

(d) Means for solving the zero opening point, that is, in the present invention, the table (3) has a mounting member (7), and the mounting member (7) is provided with a lifting drive means (10a).
, 10b, Lla, llb, 12.13.15b), the workpiece mounting means (15) is provided so as to be movable up and down.

Note that the numbers in parentheses are for convenience only and indicate corresponding elements in one drawing, and therefore, this description is not limited to the description on the drawing.
The same applies to the column ``, action''.

(e) 0 effect With the above-described configuration, the present invention provides an elevation drive means (10a
, 10b, lla, llb, 12, 13.15b), the workpiece mounting means (15) of the table (3) is moved up and down.

(f), Example An embodiment of the present invention will be described below based on the drawings.

FIG. 1 is a diagram showing an example of a laser processing machine to which an embodiment of a table for a laser processing machine according to the present invention is applied.

FIG. 2 is a diagram showing a state in which the elevating platform of the laser processing machine table is lowered.

FIG. 3 is a perspective view showing an embodiment of a table for a laser processing machine according to the present invention.

The laser processing machine 1 has two bodies 2, as shown in FIG. 1, and the bodies 2 are composed of a horizontal part 2a and a vertical part 2b. A table 3 according to the present invention is supported on the horizontal part 2a so as to be movable in the directions of arrows A and B, which are the horizontal directions in the figure, and a column 5 is provided on the right side of the vertical part 2b in the figure. ing. A torch 6 is located above the column 5 in FIG.
The torch 6 is supported so as to be movable and driven in directions perpendicular to the direction of arrows (D) and in the directions of arrows E and F, which are up and down directions in the figure. You can move within the range.

By the way, as shown in FIG. 3, the table 3 has a rectangular closed frame-shaped board 7, and a main shaft 10a is located at the right corner of the board 7 in the figure, and a main shaft 10a is located at each other corner. The three slave shafts 10b, 10b, 10b each have a bearing 9.
It is provided rotatably in the directions of arrows G and H in the figure via the screws. At the upper end of the main shaft 10a in the figure, there is a sprocket ll.
A and a disc-shaped handle 12 are fixed to the handle 12, and a handle 12a is provided on the upper surface of the handle 12 in the figure.

Also, at the upper end of each slave shaft 10b in the figure.

A sprocket Ilb is fixed to each sprocket, and a chain 13 is stretched between the three sprockets Ilb and sprocket 11a.

Furthermore, screws 10C110c and 1 are installed from the approximate center to the lower end of the outer peripheral surface of the main shaft 10a and each slave @LOb, respectively.
0c and 10c are threaded, and each screw 10c has a nut 15b fixed to trapezoidal overhanging parts 15a, 15a, 15a, 15a that constitute the lifting table 15, as well as a workpiece mounting part 15c, which will be described later. They are each screwed together. Note that the workpiece mounting portion 15c has a frame 15h formed in an overall rectangular shape, and a plurality of rectangular plate members 15i are installed in parallel on the frame 15h. Further, the upper surfaces of the frame 15c and the plate material 151 form a workpiece mounting surface 15g.

Since the laser processing machine 1 has the above configuration, in order to process the tall workpiece 16 formed in the shape of a box, first,
As shown in FIG. 1, a workpiece 16 is mounted on the workpiece mounting surface 15g of the lifting platform 15 of the table 3, which is positioned at the first setup position WX1. Workpiece 16 is workpiece mounting surface 1
5g, one worker grips the handle L2a and manually turns the handle 12 provided at the right corner of the table 3 in FIG.
direction. Then, the main shaft LOa fixed to the handle 12 rotates in the H direction together with the sprocket 11a. When the sprocket lla rotates in the H direction, the slave shafts 10b provided on the other wheels of the table 3 rotate.
-10b, 10b are sprockets 11b fixed thereto.

11b, llb and the chain 13 to rotate in the H direction.

In this way, when the main shaft 10a and each slave shaft 10b both rotate in the H direction, each screw 10 screwed on the outer peripheral surface thereof
c also rotates in the H direction. Then, as shown in FIG. 2, the lifting table 15, which is engaged with each screw loc through each nut 15b fixed to each overhanging portion 15a, loads the workpiece 16 on the workpiece mounting surface 15g. In this state, one worker descends in the direction of arrow F while operating the handle 12.

The machining surface 16a of the workpiece 16 is placed in a position relative to the torch 6 that allows machining with the torch 6.

The lowering position of the lifting platform 15 is adjusted and positioned at a predetermined position. Once positioned in place.

The table 3 is moved a predetermined distance in the direction of arrow B from the setup position 5tX1.

When the table 3 has moved a predetermined distance in the direction of arrow B together with the workpiece 16, the torch 6 is moved in the direction of arrow (,D).
Further, the tip 6a of the torch 6 is positioned at a predetermined distance above the machining surface 16a of the workpiece 16 (ie, the machining reference position) by appropriately moving and driving in the directions of arrows E and F. Next, in this state, the table 3 is appropriately moved in the directions of arrows A and B, and the torch 6 is appropriately moved in the directions of arrows C and D, and at the same time, a laser beam is emitted from the tip of the torch 6 @6a toward the processing surface 16a. Then, the workpiece 16 is processed.

After the processing of the workpiece 16 is completed, the workpiece 16 is laser processed! ! ! 1. Carry out the work of carrying out the work outside.

Therefore, with the workpiece 16 mounted on the workpiece mounting surface 15g, the table 3 is moved to the setup position x in the direction of the arrow.
Move to 1. In this state, the handle 12 is rotated in the direction of arrow G in FIG. 3, which is the opposite direction. Then, the main shaft LOa rotates in the G direction together with the sprocket LLa. At this time, each shaft 110b also has each sprocket 11b.
, rotates in the G direction via the chineen 13.

In this way, when the main shaft 110a and each slave shaft 10b rotate in the G direction, each screw 1 screwed on the outer peripheral surface thereof
0c also rotates in the G direction, and each screw 10C and the overhanging part 15a
The lifting platform 15 is engaged through each nut 15b of
7- With the workpiece 16 mounted on the mounting surface 15g,
It rises by a predetermined distance in the direction of arrow E. The lifting platform 15 is
When the workpiece has risen a predetermined distance in the direction, the workpiece mounting surface 1
A workpiece 16 weighing 5 g is carried out of the laser processing machine 1 by a worker or the like.

In this embodiment, a tall workpiece 16 formed in a box shape is used.
However, when processing a normal workpiece that is not tall, the workpiece is mounted on the workpiece mounting surface ISg without lowering the lifting platform 15, and the torch 6 is used to process the workpiece. Of course it is possible.

In addition, in this embodiment, as a method for rotating the main @10a in the directions of arrows G and H, a case has been described in which one operator rotates the handle 12 fixed to the main @L Oa by hand. The method of rotating the main shaft 10a is not limited to this, for example, a method of rotating the main shaft 10a using a servo motor, a pulse motor, etc., a method of rotating using hydraulic pressure, etc. Of course, any method may be used as long as the rotation can be performed appropriately.

Further, in this embodiment, the elevator platform 15 is indicated by arrow E.

As a method for raising and lowering the lifting platform 15 in the direction F, we have described the case where each screw 10c and each nut 15b are screwed together and each screw 10c is rotated in the directions of arrows G and H. Without limitation, any method can be used to move the platform 15 up and down in the directions of arrows E and F as appropriate, such as a method of directly raising and lowering the platform using pneumatic or hydraulic cylinders. Of course, this is a good thing.

Furthermore, it is of course possible to configure the above series of operations to be controlled by an NG program.

(g) 6 Effects of the Invention As described above, according to the present invention, the board 7 and the like are attached to the member, and the handle 12 is attached to the member. Main shaft 1
5. Workpiece mounting means such as a lifting platform 15 are provided so as to be freely raised and lowered through lifting driving means such as 0a, slave shaft 10b, sprockets 11a and 11b, chain 13, and nut 15b. By mounting a tall workpiece 16 such as a workpiece on the workpiece mounting means and driving the lifting drive means appropriately in this state, it becomes possible to raise and lower the tall workpiece 16 together with the workpiece mounting means with respect to the torch 6, Beyond the normal torch travel stroke. Processing of the back work 6 can also be carried out smoothly.

[Brief explanation of the drawing]

The first is a diagram showing an example of a laser processing machine to which an embodiment of the table for a laser processing machine according to the present invention is applied. FIG. 2 is a diagram showing a state in which the elevating platform of the laser processing machine table is lowered. FIG. 3 is a perspective view showing an embodiment of a table for a laser processing machine according to the present invention. 1... Laser processing machine 2... Body 3... Table 7... - Mounting member (board) 12... Lifting drive means (handle) 10a ...Elevating drive means (main shaft) 10b...
... Lifting drive means (slave shaft) 11a, llb...
- Lifting drive means (sprocket) 13... Lifting drive means (chain) 15b...
... Lifting drive means (nut) 15 ... Workpiece loading means (lifting platform) Applicant Yamazaki Mazak Co., Ltd. Agent Patent attorney Phase 1) Shinji Fig. 1 Luther A Engineering at Fig. 2

Claims (1)

[Scope of Claims] A laser processing machine having a machine body and a table movably provided on the machine body, wherein the table has a mounting member, and a workpiece mounting means is attached to the mounting member via an elevating drive means. A table for laser processing machines that can be raised and lowered.