JPH0919786A - Work supporting device and placing base for laser machining - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily transfer a work to the upper side of a supporting body through the rolling of a rolling body by projecting it to an upper position through a driving means. SOLUTION: With a rolling supporting body 11 raised and elevated by a cylinder 3, coated members 16, 16 supported by that rolling supporting body 11 are gradually separated and opened along the shape of a guiding groove 18 nearly in the center of the rolling supporting body 11, and a rolling body 14 is exposed when the rolling supporting body 11 reaches an upper position X. Reversely, with the rolling supporting body 11 lowered by the cylinder 3, an opened coated body 15 closes, with the coated members 16, 16 joined along the guiding groove 18, when the rolling supporting body 11 reaches a lower position, and covers the rolling body 14. Thus, a work can be easily transferred.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work supporting device for easily transporting a work such as a metal plate, and a laser processing for placing a work used when cutting the work with a laser processing machine. For the table.

[0002]

2. Description of the Related Art Conventionally, when performing laser processing, a work such as a metal plate is placed on a work placing table provided with a plurality of support members having a sharp tip, and cutting with a laser is performed. It was If the work is heavy, it requires a great deal of labor to carry it in and out of the work mounting table. Therefore, as in Japanese Utility Model Laid-Open No. 56-12526, a ball rolling element is provided on the work mounting table. When moving the work, there is a means of raising the rolling body to lift the work, and lowering the rolling body to perform the laser processing so that the work is supported by the support body.

However, in such a means, the rolling element may be damaged by the laser beam penetrating the work, and therefore, as shown in Japanese Utility Model Publication No. 6-233 shown in FIG.
When moving 40, the rotating member 42 provided with the rolling elements 41
Is rotated from below to bring the rolling element 41 into contact with the work 40,
On the other hand, there is a means for supporting the work 40 by the needle-shaped support member 43 by rotating the rotating member 180 degrees downward during laser processing. According to such means, there is an advantage that the rolling element 41 is not damaged by the laser beam.

[0004]

However, according to the means for rotating the rotary member 42 provided with the rolling element 41 as described above, the rolling element 41 is rotated by the rotation of the rotary member 42 (arrow B). Even if the contacting work 40 is displaced in the horizontal direction (arrow B) and the work 40 is transported and positioned on the rolling element 41, the work 40 is supported at the stage of being supported by the support member 43.
However, there was a problem in that the horizontal displacement occurred. Furthermore, the dissolved metal droplets generated during laser processing are scattered,
It may adhere to the rolling element 41 along the rotating member 42, causing the performance of the rolling element 41 to be significantly reduced. In addition, in order for the rotation member 42 to rotate, a space related to the rotation locus must be ensured, and therefore, the support member
There is no choice but to widen the distance L between the support member 43 'and the support member 43'.

The present invention has been made in view of the above-mentioned conventional problems, and in a work support device capable of easily transferring a work, a positional deviation occurs when the work is placed on a support member. It is an object of the present invention to improve so that rolling elements are not damaged by molten metal droplets or the like generated during laser processing, and the distance between supporting members can be shortened. It is an object to provide a mounting table for laser processing using the.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and means for solving the problems include a plurality of rolling elements 14 that can roll to transfer a work 24. In a work supporting device comprising a supporting device main body 1 which is provided and in which the rolling member 14 is vertically movable via a driving means, the rolling device 14 is provided in the supporting device main body 1.
Is closed to block at least the upper side of the rolling element 14, and when the rolling element 14 rises, is opened to open and close the rolling element 14 to expose the rolling element 14. .

Further, the means according to claim 2 relates to a mounting table for laser processing, comprising a plurality of supports 22 on which a work 24 is mounted during laser processing.
In the laser processing table for performing laser processing on the work 24 placed on 22, the space between the plurality of supports 22 is:
A plurality of rolling elements 14 that can roll to transfer the work 24 are provided, and the rolling elements 14 are located above the support body 22 via a driving means and below the support body 22. And a cover 15 for covering at least the upper side of the rolling element 14 when the rolling element 14 reaches the lower position Y. Is to be.

[0008]

[Operation] A work supporting device and a support having the above-mentioned structure
If the mounting table for laser processing is constituted by 22 and 22, the rolling element 14 will support the work 24 by projecting the rolling element 14 to the upper position X via the driving means. The work 24 can be easily transferred to the upper side of the support 22 via the rolling element 14 rolling.
Next, when the rolling element 14 is lowered, the work 24 is also vertically lowered together with the rolling element 14, and when the rolling element 14 is lowered from the upper end of the support 22 to the lower position Y, the work 24 is supported by the support 22. And is placed on the placing table. When reaching the lower position Y, the upper side of the rolling element 14 is covered with the covering 15
Because it is shielded by the cover, even if dissolved metal droplets etc. generated during laser processing of the work 24 are scattered from above, the covering
It is blocked by 15, and no metal droplets or the like adhere to the rolling element 14.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a work supporting device and a laser processing mounting table according to the present invention will be described below with reference to the drawings. <First Embodiment> In FIGS. 1 and 2, reference numeral 1 denotes a pair of rectangular side plate-like auxiliary side plates 2b which are vertically erected at predetermined intervals.
And two cylinders 3 and 3 as a driving means fixed to the inner wall of the auxiliary side plate 2b via a spacing member 2c, and a rolling support 11 fixed to a piston rod 12 of the cylinders 3 and 3. ,
The bearing device main body including the rolling element 14 provided on the upper surface of the rolling support element 11 is shown.

More specifically, a hole 5 is formed in the lower side wall of the cylinder 3 to allow air to flow into the gap between the lower surface of the piston 4 and the bottom surface 3a of the cylinder 3, and the hole 5 is provided in the auxiliary side plate 2b. It communicates with the lower air supply port 7 on the other hand,
A hole 8 is formed in the upper side wall of the cylinder 3 to allow air to flow into the gap between the upper surface of the piston 4 and the top surface 3b of the cylinder 3, and the hole 8 is an upper air supply port provided in the auxiliary side plate 2b. 9
Is in communication with With this configuration, when air is supplied from the lower air supply port 7, the piston 4 is pushed up, and conversely, when air is supplied from the lower air supply port 7, the piston 4 is pushed down.

Reference numeral 11 denotes a long rolling support body having both lower end portions fixed to piston rods 12 protruding from the two cylinders 3, 3, respectively, and the length thereof is a pair of auxiliary side plates 2b. It is formed to be slightly shorter than the interval of 2b. Furthermore, rolling support
The rolling element 14 provided on the upper surface of 11 is a cylindrical case body.
A ball 13c rotatably arranged on a bowl-shaped surface 13a having a substantially hemispherical shape formed inside 13 through a large number of small balls 13b ,.
Consists of

Reference numeral 15 denotes a cover body that covers and protects the rolling body 14 of the rolling support body 11. The coating body 15 is a rolling support body 11.
Is formed by bending a strip plate having substantially the same length as that of the rolling support member 11 at a right angle in the longitudinal direction, and the opening side 16 of the rolling support body 11 at the substantially central portion in the longitudinal direction.
It consists of a pair of bilaterally symmetrical covering members 16 and 16 that cover the rolling element 14 by closing it by joining with a, the lower ends of both ends of which are provided with bolts 17 on the front surface portion 11a and the rear surface portion of the rolling support member 11.
It is pivotally supported by 11b. Further, rod-shaped rods 19 project from the both ends of the covering members 16, 16 in the direction of the auxiliary side plate 2b, and the rods 19 are formed in the substantially inverted C-shaped guide groove 18 formed in the auxiliary side plate 2b. It has been inserted.

With this structure, as shown in FIG. 3, when the rolling support 11 is pushed up by the cylinder 3 and rises, the covering members 16, 16 pivotally supported by the rolling support 11 are provided.
Is a substantially central portion 15 of the rolling support 11 along the shape of the guide groove 18.
At a, they gradually separate and open, and the rolling support 11
The rolling element 14 of the rolling support body 11 is exposed when the temperature reaches. On the contrary, when the rolling support 11 is lowered by the cylinder 3, as shown in FIG.
The covering members 16 and 16 are joined along with each other, and when the rolling support 11 reaches the lower position Y 1, it is closed and covers the rolling body 14.

Next, the bearing device body 1 having the above-mentioned configuration
As shown in FIG. 4, a plurality of supports are mounted on the base 21 at a predetermined interval substantially in parallel, and each of the supporting device main bodies 1 has a pointed tip and slightly protrudes from the upper end of the auxiliary side plate 2b. If a plurality of bodies 22 are provided in the longitudinal direction at predetermined intervals, a laser processing mounting table is configured.

According to such a mounting table for laser processing, the rolling support 14 projects upward from the tip of the support 22 to support the work 24, and the rolling support 11 reaches the upper position X.
By moving the driving means to raise the covering member 1
6 and 16 open to expose rolling element 14 and work 24
It will be supported by 4. Therefore, even a heavy work piece 24 can be easily loaded into the work processing table by rolling of the balls 13c. Next, when performing laser processing, the rolling support 14 is lowered below the tip of the support 22 and the rolling support 11 is lowered to the lower position Y where the work 24 is supported by the support 22. . At this time,
The work 24 is vertically supported while being supported by the rolling elements 14 of the rolling support 11, so that the work 24 is supported by the support 22 without being displaced in the horizontal direction. When reaching the lower position Y 1, the covering members 16 and 16 are closed to cover the upper side of the rolling element 14. Therefore, the laser beam does not hit the rolling elements 14 during the laser processing work, and
The metal pieces and the melted metal droplets generated by the cutting of 24 are shielded by the coating body 15 and do not hit the rolling elements 14.

Further, the rolling element 14 supporting the work 24 is
Since it is configured to move up and down by the cylinder 3, there is no need to secure a space for the rolling element to rotate like the conventional means for supporting the workpiece by rotating it. It is possible to arrange the supports 22 to be narrowed.

<Second Embodiment> In the present embodiment, FIG.
As shown in FIG. 6, the main body 1 of the support device is composed of two independent pipes 25, 25 'that are joined in the longitudinal direction and are fixed on the pipes 25, 25' at a predetermined interval. It is composed of a cylinder 3 as a driving means and a case body 13 having a rolling element 14 attached to a piston rod 12 thereof. Further, the bearing device main body 1 is provided with a covering body 15 composed of a pair of left and right symmetrical covering members 16 and 16. The lower end side of the covering members 16 and 16 is pivoted to the outer surface side of the cylinder 3 via a bolt 17. It is supported. Further, one end of the spring 26 is fixed to one side surface of the one covering member 16, and the spring is attached to one side surface of the other covering member 16.
The other end of 26 is fixed, and the opening side 16a of the pair of covering members 16 and 16 is joined by the tensile force of the spring. In addition, on the inner side above the covering members 16, 16, the opening side 16
Plate members 27, 27 each having a substantially U-shaped cross section are provided from a to the other side surface 16b.

Reference numeral 28 denotes a flow hole for allowing the air supplied from the pipe 25 to flow into the gap between the lower surface of the piston 4 and the bottom surface 3a of the cylinder 3, and 29 denotes the air supplied from the pipe 25 '. To the top of piston 4 and top 3b of cylinder 3.
A through hole for flowing into a gap between and is shown. Further, 30 indicates a backing plate provided at the bottom of the pipe 25, 25 ', 31 indicates a long bolt for fixing the cylinder 3 to the pipe 25, 25', and 32 indicates a cylinder 3 and the backing plate 30. The sealing part provided in FIG. Two long bolts 31 are screwed to the cylinder 3 for each of the pipe 25 and the pipe 25 '.

In this embodiment, the rolling element 14 is moved by the cylinder 3.
As the rolling element 14 rises, the rolling element 14 presses the plate members 27, 27 inside the covering members 16, 16, so that the opening side 16a of the covering members 16, 16 begins to separate as shown by the chain double-dashed line in FIG. When the moving body 14 reaches the upper position X, the rolling body 14 is completely unshielded and the covering body 15 opens. On the other hand, when the rolling element 14 is lowered, the covering members 16 and 16 separated from each other by the spring 26 begin to join while the plate members 27 and 27 and the rolling element 14 are sliding, and when reaching the lowered position Y, as shown in FIG. The opening side 16a is joined to the rolling element 14 and the rolling element 14 is completely shielded by the cover 15. Incidentally, it is of course possible to construct a mounting table for laser processing using the work supporting device according to this embodiment as in the first embodiment.

<Third Embodiment> In this embodiment, FIG.
And, as shown in FIG. 9, two elongated plate members 33, 33 'are arranged on the auxiliary side plate 2b so that the flat portions thereof are in the vertical direction.
a and 33a are fixed. The rolling support 11 provided with the rolling elements 14 is fitted between the two plate members 33, 33 ', and is vertically movable along the plate members 33, 33' via the cylinder 3. It is configured. Further, an elongated horizontal member 34 is provided in the horizontal direction on the upper end side of the one plate member 33, so that the plate member 33 is formed in a substantially L-shape in cross section. A plate-shaped cover 15 is provided on the horizontal member 34 so as to be openable and closable via a hinge portion 35. Other configurations are the same as those of the first embodiment except that the rod 19 and the guide groove 18 are not provided.

In this embodiment, when the rolling element 14 is in the lower position Y, the covering 15 covers the upper side of the rolling element 14 due to gravity, while when the piston rod 12 rises, the rolling element 14 covers the rolling element 14.
As the cover 15 is rotated by the hinge portion 35 as the roller 15 is pushed up, and the rolling element 14 reaches the upper position X, the rolling element 14 is completely exposed as shown by the chain double-dashed line in FIG. 8 and FIG. The work can be supported. Further, it is of course possible to construct a mounting table for laser processing by combining the work supporting device according to the present embodiment and the support.

<Other Embodiments> In each of the above embodiments,
The driving means was an air cylinder, but it is not always a rolling element.
The driving means for the vertical movement of 14 is not limited to the air cylinder, but may be a hydraulic cylinder or an electric motor. The point is that the rolling element 14 may be configured to be movable up and down, and the means therefor does not matter.

Further, in the above-mentioned embodiment, the covering body 15 is constructed so as to cover and protect the rolling element 14 by joining the pair of covering members 16, 16, but the covering body 15 is not necessarily a pair of coverings. Not limited to the members 16 and 16, for example, a cover 15 having a semicircular cross-section may rotate around the rolling element 14. Further, as shown in FIG. The covering body 15 may be configured by a plurality of shutter blades 31 so as to shield the upper side thereof when the temperature reaches. The point is that the cover may be configured to expose the rolling element 14 when the rolling element 14 reaches the upper position and to shield at least the upper side of the rolling element 14 when the rolling element 14 reaches the lower position.

Further, in each of the above embodiments, the rolling element 14
Is a ball, but the rolling element 14 is not limited to a ball, and may be a wheel-shaped rolling element that is rotatably supported.

[0025]

As described above, in the work supporting device and the laser processing mounting table according to the present invention, the rolling element is projected to the upper position via the driving means, so that the rolling element rolls above the support. The work can be easily transferred to. Therefore, even a heavy work can be easily transferred to a predetermined position on the support. Then, if the rolling element is lowered, the work is also lowered in the vertical direction together with the rolling element, and the work is supported by the support body and placed on the mounting table. However, the rolling element is moved vertically in the vertical direction. Therefore, there is no lateral displacement when the work is supported by the support.

Next, when the rolling element reaches the lower position, the upper side of the rolling element is shielded by the coating, so that not only the laser beam can be blocked, but also melted metal droplets and the like generated during laser processing of the work are from above. Even if scattered
Since it is protected by the coating, no metal droplets or the like will adhere to the rolling elements. Therefore, the rolling element can be used for a long time without any trouble without being damaged by the laser processing operation.

Further, since the rolling element for supporting the work provided between the support bodies moves up and down,
When the rolling elements move, a space for moving the rolling elements in the lateral direction (horizontal direction) is not required, and the interval between the supporting bodies can be narrowed. Therefore, it is possible to properly deal with a work for which a support must be densely provided when performing laser processing.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of a work support device according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a front view showing a state in which a rolling element has reached an upper position.

FIG. 4 is a front view showing a mounting table for laser processing according to the present invention.

FIG. 5 is a cross-sectional view showing a second embodiment of the work bearing device according to the present invention as seen from the front side.

FIG. 6 is a side view of the same including an enlarged cross-sectional view of a main part.

FIG. 7 is a front view showing a state in which a rolling element rises and a state in which the rolling element reaches an upper position.

FIG. 8 is a cross-sectional view of a work supporting device according to a third embodiment of the present invention as seen from the front side.

FIG. 9 is a cross-sectional view of a state in which the rolling element has reached an upper position as viewed from the side surface side.

FIG. 10 is a plan view showing another embodiment of the covering body according to the present invention.

FIG. 11 is an explanatory view showing a processing table of a conventional laser processing machine.

[Explanation of symbols]

1 ... Bearing device main body, 14 ... Rolling body, 15 ... Covering body, 22 ... Supporting body, 24 ... Work piece, X ... Upper position, Y ... Lower position

Claims (2)

[Claims] 1. A plurality of rolling elements (14) which can roll to transfer a work (24) are provided, and the rolling elements are provided through a driving means.
In a work supporting device comprising a supporting device body (1) in which (14) is vertically movable, the supporting device body (1) is closed when the rolling element (14) descends. Moving body (14)
A work support which is provided with an openable and closable cover (15) that shields at least the upper side of the roller and that opens when the rolling element (14) rises to expose the rolling element (14). apparatus. 2. A laser processing method, comprising: a plurality of supports (22) on which a work (24) is placed during laser processing, and performing laser processing on the work (24) placed on the support (22). In the mounting table for work, a work (2
4) is provided with a plurality of rolling elements (14) that can roll freely,
Moreover, the rolling element (14) is the support member via the driving means.
An upper position (X) protruding above (22) and a lower position (Y) below the support (22) are configured to be vertically movable as much as possible, and the rolling element (14 ) Reaches the lower position (Y), the laser processing mounting table is provided with a cover (15) for shielding at least the upper side of the rolling element (14).