JPH09117842A - Window part structure of machine tool chip cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent scattering of small chips to a transparent panel by attaching a punching plate having many small holes in a superposing form at a specified interval from the transparent panel in the inside surface part of a chip cover. SOLUTION: A punching plate 19 is fixed firmly by a screw to the inner side surface part of a chip cover 9, that is, the surface of a bed side by an attaching seat 17 in a superposing manner at a specified interval 16 from a transparent panel 15. The size of the small hole 21 of the punching plate 19 is set within a range for prohibiting the passage of small chips and the formation of film in the small hole by coolant liquid. By this punching plate 19, almost all chips including small chips are received. Consequently, scattering of small chips to the transparent panel 15 is prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a window cover structure of a machine tool chip cover, and more particularly to a window shield structure.

[0002]

2. Description of the Related Art A chip cover arranged around a work table of a machine tool is provided with a window portion so that the machining status can be seen from the outside. In order to prevent the liquid from scattering, it is shielded by a transparent panel made of plastic such as an acrylic resin plate.

There is also a chip cover in which a wire mesh for protecting the transparent panel is stretched on the inner side surface of the chip cover.

[0004]

If the window portion of the chip cover is shielded only by the transparent panel made of plastics, the chips are scattered directly on the transparent panel, so that the transparent panel is easily damaged and the transparent panel Permeability deterioration occurs early. Further, the coolant liquid scattered on the transparent panel adheres to the transparent panel in the form of a film, which reduces the transparency of the transparent panel and makes it difficult to confirm and monitor the processing status.

When the wire net is provided, relatively large chips are prevented from scattering directly on the transparent panel, but fine chips pass through the mesh of the wire mesh and are scattered to the transparent panel, and Will hurt you. Further, even if a metal net is provided, the coolant liquid passes through the mesh and scatters on the transparent panel, so that the coolant liquid adheres to the transparent panel in a film form, and it is not possible to avoid deterioration of the transparency of the transparent panel.

The present invention has been made by paying attention to the above-mentioned problems, and aims at improving the durability of the transparent panel by preventing fine chips from scattering on the transparent panel, and further improving the coolant liquid. An object of the present invention is to provide a shield structure for a window portion of a chip cover for a machine tool which is excellent in transparency while avoiding film-like adhesion to a transparent panel.

[0007]

In order to achieve the above object, the window structure of the chip cover for machine tools according to claim 1 of the present invention shields the window part formed in the chip cover. A transparent panel is attached to the chip cover,
A punching plate having a large number of small holes is attached to the inside surface of the chip cover so as to overlap with the transparent panel with a predetermined gap.

In the window structure of the chip cover for machine tools according to the present invention, the inside of the chip cover is seen through each small hole of the transparent panel and the punching plate.

Since the punching plate has a large number of small holes formed therein, it receives almost all chips including fine chips and prevents them from scattering to the transparent panel.

The punching plate also receives the coolant and prevents it from scattering to the transparent panel, and prevents the coolant from adhering to the transparent panel in a film form. It should be noted that the size of the small holes of the punching plate may be selected within a range in which the passage of fine chips is prohibited and the coolant does not form a film on the small holes. 8 mm oval, 2-4
It suffices if they are arranged vertically and horizontally in a grid pattern with a vertical and horizontal pitch of about mm.

In order to achieve the above-mentioned object, in the window structure of the chip cover for machine tools according to claim 2 of the present invention, the transparent panel is made of a transparent plastic plate, and the punching plate has a large number. It is made of a metal plate having small holes and is rigidly fixed to the chip cover.

In the window structure of the chip cover for machine tools according to the present invention, since the transparent panel is made of the transparent plastic plate, the required transparency can be obtained, and the punching plate has a large number of small holes. Since it is made of a metal plate and is rigidly fixed to the chip cover, the punching plate has a required strength and also functions as a reinforcing member for the window part of the chip cover.

[0013]

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

FIGS. 1 to 3 show one embodiment in which the window structure of a chip cover for machine tools according to the present invention is applied to a vertical lathe.

As shown in FIG. 1, the vertical lathe comprises a bed 1, a column 3, a saddle 5, a ram 7, etc., and a door-shaped chip cover 3 which can be opened and closed is provided on the front surface of the bed 1. Have Although not visible in FIG. 1 because the chip cover 9 is closed, a rotary table is provided on the bed 1.

A window 11 is opened in the chip cover 9. As shown in FIG. 2, a transparent panel 15 made of a plastic such as an acrylic resin plate is fitted and attached to the window 11 by an H rubber 13, and the window 11 is shielded by the transparent panel 15. ing. This gives the required permeability.

The punching plate 1 is attached to the inner surface of the chip cover 9, that is, the surface on the bed side by a mounting seat 17.
9 is rigidly screwed and fixed to the transparent panel 15 so as to be superposed with a predetermined gap 16.

As shown in FIG. 3, the punching plate 19 has a large number of perforated oval holes 21 arranged on a steel plate having a thickness of about 1 mm in a grid pattern at predetermined longitudinal and lateral pitches. It is set up.

In this window structure, the chip cover 9 is penetrated through the transparent panel 15 and the small holes 21 of the punching plate 19.
Since the inside of the small hole 21 is to be seen, the size of the small hole 21 may be selected in such a range that the passage of fine chips is prohibited and the coolant does not form a film on the small hole. 10 to 15 mm x 4 to 8 mm oval, 2 to 4 m
It suffices that they be arranged in a matrix in a vertical and horizontal direction with a vertical and horizontal pitch of about m.

Since the punching plate 19 has a large number of small holes 21 of the above-mentioned size, it can receive almost all chips including fine chips. This prevents fine chips from scattering on the transparent panel 15, prevents the transparent panel 15 from being damaged by the chips, and prevents the transparency of the transparent panel 15 from decreasing.

The punching plate 19 also receives the coolant liquid and prevents it from scattering to the transparent panel, and prevents the coolant liquid from adhering to the transparent panel in the form of a film. Therefore, the transparency of the transparent panel 15 is prevented from decreasing.

As a result, the transparency of the window portion 11 is maintained, and the processing status can be confirmed and monitored reliably.

Since the punching plate 19 is made of a metal plate and is rigidly fixed to the chip cover 9, the punching plate 19 has a required strength, and the window portion 11 of the chip cover 9 is reinforced. It also functions as a member, and the strength of the chip cover 9 is improved.

As shown in FIG. 4, the punching plate 19 is provided with a non-perforated portion 23 in a part thereof, and by making the non-perforated portion 23 into a character shape or the like, the punching plate 19 is machined by the non-perforated portion 23. It can also represent a name, company name, or the like.

Although the present invention has been described above in detail with respect to a specific embodiment, the present invention is not limited to this, and various embodiments are possible within the scope of the present invention. It will be apparent to those skilled in the art that it is possible.

[0026]

As will be understood from the above description, in the window structure of the chip cover for machine tools according to claim 1, the inside of the chip cover is seen through each small hole of the transparent panel and the punching plate. Since the punching plate receives almost all chips including fine chips, the fine chips are prevented from scattering to the transparent panel, and the transparent panel is prevented from being damaged by the chips. Transparency does not decrease over a long period of time.

The punching plate also receives the coolant liquid and prevents it from scattering to the transparent panel.
Since the coolant liquid is prevented from adhering to the transparent panel in the form of a film, the transparency of the transparent panel is prevented from being lowered.

As a result, the transparency of the window portion of the chip cover is maintained, and the processing status can be confirmed and monitored reliably.

In the window structure of the chip cover for machine tools according to the second aspect, since the transparent panel is made of the transparent plastic plate, the required transparency can be obtained, and the punching plate has many small holes. Since it is composed of an installed metal plate and is rigidly fixed to the chip cover, the punching plate has a required strength, and also functions as a reinforcing member for the window portion of the chip cover.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a vertical lathe to which a window structure of a chip cover for machine tools according to the present invention is applied.

FIG. 2 is a cross-sectional view showing one embodiment of a window structure of a chip cover for machine tools according to the present invention.

FIG. 3 is a front view showing an example of a punching plate used in the window structure of the machine tool chip cover according to the present invention.

FIG. 4 is a front view showing another example of a punching plate used in the window structure of the chip cover for machine tools according to the present invention.

[Explanation of symbols]

 1 bed 3 column 5 saddle 7 ram 9 chip cover 11 window 13 H rubber 15 transparent panel 17 mounting seat 19 punching plate 21 small hole 23 non-perforated part

Claims (2)

[Claims] 1. A transparent panel for shielding a window portion formed in the chip cover is attached to the chip cover,
A window part of a chip cover for machine tools, characterized in that a punching plate having a large number of small holes is attached to the inside surface of the chip cover so as to be overlapped with the transparent panel at a predetermined gap. Construction. 2. The transparent panel is made of a transparent plastic plate, and the punching plate is made of a metal plate having a large number of small holes and is rigidly fixed to the chip cover. The window structure of the chip cover for machine tools.