JPH048440A - Work table device - Google Patents

Abstract

PURPOSE:To handle a work support member as expendable supplies, through which it is made so as to be changed and modified or suchlike in an easy manner by constituting the work support member supporting a workpiece as shown by dotted line, with a corrugated plate, and attaching this corrugated plate to a work table body detachably. CONSTITUTION:Plural pieces of corrugated plates 17 as a work support member are installed in parallel between both side plates 9 and 11 of a work table, and each plate 17 is divided into two parts between these side plates 9 and 11, thus a corrugated plate 17a on one side is stretched across an interval between the side plate 9 and a central support beam 19, while a corrugated plate 17b on the other between this central support beam 19 and the side plate 11, respectively, and they are detachably attached thereto by respective thread clampers 21. Since these plates 17a, 17b are able to be removed and interchanged owing to these thread clampers 21, height, form or the like of each plate 17 can be freely changed and set up by plate thickness of a workpiece to be machined, through this interchangeability.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention (Industrial Application Field) The present invention relates to a work table device, and more particularly to a kenzan-type work table device used in a laser processing device or the like.

(Prior Art) In general, a Kenzan-type work table device used in laser processing equipment, etc. has a fixed work support member that has a pointed upper end and supports the work piece at a predetermined height position, and a free support member that supports the work piece at a predetermined height position. It has movable rolling member support bars to which rolling members such as bearings are attached and which are arranged parallel to each other at predetermined intervals. The transfer member support bar supports the workpiece on the rolling member at a position above the workpiece support height position by the workpiece support member, and the upright position. The rolling member can be moved sideways between a retracted position located below a height position where the workpiece is supported by the workpiece support member, and when the workpiece is being replaced, etc. By being in the upright position, the workpiece is slidably supported by the rolling member.

In the conventional Kenzan-type work table device, the work support member with the pointed upper end is constituted by a pin member whose upper end is tapered. It is designed to form a mountain of swords.

(Problem to be Solved by the Invention) When the workpiece support member is constituted by a bottle as described above, the workpiece support member is treated as a member to be used semi-permanently, and relatively High-grade metal materials are used. However, even if the workpiece support member is made of high-grade metal, it is inevitable that damage will occur if the workpiece support member is irradiated with a laser beam. Many things are practically impossible to change.

SUMMARY OF THE INVENTION An object of the present invention is to provide a work table device configured so that a work support member can be treated as a consumable item and can be easily replaced or changed.

[Structure of the Invention] (Means for Solving the Problem) According to the present invention, the above-mentioned object is to provide a kenzan-type work table device that supports a workpiece in a horizontal state in a point-like manner.
This is achieved by a work table device characterized in that a work support member for point-wise supporting the work is constituted by a corrugated plate, and the corrugated plate is detachably attached to the work table main body.

(Function) According to the above-described structure, since the workpiece support member is constituted by a corrugated plate, it can be provided at a lower price than a pin-shaped one. Since the corrugated plate is removable from the work table body, the corrugated plate may have an appropriate shape depending on the shape of the work to be supported.

(Example) Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 7 shows one embodiment of a laser processing device incorporating a work table device according to the present invention. The laser processing device 1 includes a base frame 1, a work table 3 provided on the base frame 1 and movable in the horizontal direction in the figure, and a portal frame 5 provided so as to straddle the base frame 1. have.

A Y-axis carriage 7 is provided on the portal frame 5 so as to be movable in the vertical direction in the figure, that is, in a direction across the work table 3.Although not shown in the figure, the Y-axis carriage 7 includes a work table 3 is equipped with opposing laser processing heads.

The work table 3 has side plates 9 and 11 facing each other as the work table main body, and between the side plates 9 and 11 there are a plurality of rolling member support bars 15 to which transfer members 13 such as free bearings are attached. They are arranged parallel to each other and spaced apart from each other by a predetermined distance.

Between the side plates 9 and 11 of the work table 3, a plurality of corrugated plates 17 as work supporting members are arranged parallel to each other at a predetermined interval. As clearly shown in FIGS. 1 and 2, the corrugated plate 17 is divided into two parts between the side plates 9 and 11, and one of the corrugated plates 17
A is spanned between the side plate 9 and a central support beam 19 extending across the center of the work table 3, and the other corrugated plate 17b is spanned between the central support beam 19 and the side plate 11. Each of the screw fasteners 21 is removably attached using a screw fastener 21 which is a combination such as a bolt and nut that can be disassembled. The left and right corrugated plates 17a and 17b in FIG. 2 are connected to each other by a braced connection plate 23, as best shown in FIG. Since the braced connection plate 23 extends in a direction perpendicular to the extending direction of the corrugated plates 17a and 17b, it can absorb thermal deformation of the corrugated plates 17a and 17b by elastic deformation.

In the embodiment shown in FIG.
Reference numeral 7b has a right triangular mountain shape, and a plate-like workpiece is supported substantially horizontally at each top of the mountain shape along the work path line PL. corrugated plate 17a,
In addition to supporting plate-shaped workpieces, the 17b supports, for example, a workpiece with a circular cross section as shown by the symbol Wa in FIG. It is also possible to accept and support this.

The corrugated plates 17a and 17b can be removed and replaced within the screw fastener 21, and by this exchange, the height, shape, etc. of the corrugation of the corrugated plate 17 can be freely changed depending on the thickness of the workpiece to be processed. In the case of a thick plate, the work may be supported at a position above the work path line PL in order to protect the free bearing 13 from the laser beam. Further, the corrugated plate 17 may have an acute triangular shape as shown in FIG. 3, or may have a sinusoidal waveform as shown in FIG. It may also be trapezoidal as shown.

When the corrugated plate 17 is trapezoidal, it may be used for secondary processing of press-formed workpieces, as shown by the symbol Wc in the figure.

In addition, the corrugated plate 17 may be replaced with a workpiece support jig member 25 as shown in FIG. The workpiece support jig member 25 is configured to fit, for example, a drawn workpiece Wd into a hole 27, and the burr b of the workpiece Wd may be trimmed by laser processing.

Although the present invention has been described in detail with respect to specific embodiments, the present invention is not limited thereto, and it is understood that various embodiments can be made within the scope of the present invention. It will be clear to those skilled in the art.

[Effects of the Invention] As can be understood from the above embodiments, in the work table device according to the present invention, the work support member is constituted by a corrugated plate, so this is more effective than a bottle-shaped one. It is provided at a low price and is treated as a consumable item. Furthermore, since the corrugated plate is removable from the work table body, the shape of the corrugated plate may be changed to a suitable shape depending on the shape of the work to be supported.

[Brief explanation of drawings]

FIG. 1 is a plan view partially showing one embodiment of the work table device according to the present invention, FIG. 2 is an elevational view of the work table device shown in FIG. 1, and FIGS. 3 to 5 are FIG. 6 is an elevation view showing another embodiment of the corrugated plate used in the work table device according to the present invention, FIG. 6 is a perspective view showing an example of a work supporting jig member used in the work table device according to the present invention, and FIG. The figure is a plan view showing an embodiment of a laser processing apparatus to which a work table device according to the present invention is applied. 1...Base frame 3...Work table 5
...Portal frame 13...Rolling member 17...
・Corrugated plate 21... Screw fastener 23... Strap connection member agent Patent attorney Hidekazu Miyoshi

Claims (1)

[Claims] In a Kenzan-type work table device that supports a workpiece in a horizontal state in a dotted manner, the workpiece support member that supports the workpiece in a dotted manner is constituted by a corrugated plate, and the corrugated plate is removably attached to the worktable body. A work table device characterized by: