JPS5917555Y2 - Cover device to protect the sliding surface - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cover device for protecting a sliding surface.

The object of the present invention is to enable the cover device to be removed with a simple operation.

In order to prevent coolant containing cutting chips or abrasive grains from entering the sliding surface between the fixed table and the moving table, a cover device using two overlapping covers with one end pivoted to the fixed table and the moving table, respectively, has been implemented. It is disclosed in Publication No. 52-21676.

However, in such conventional devices, as a mounting structure for the block that supports the hinge pin, for example, an insertion hole is formed in the front surface of the moving platform, and the shaft of the block is inserted into this insertion hole.
Furthermore, a configuration is adopted in which the shaft portion is prevented from coming off by screwing in a set screw from the side surface of the movable table.

Since this set screw is located behind the grinding wheel, it cannot be operated until after the grinding wheel has been removed.Therefore, in order to disassemble the cover, the wheel must be removed, and the disassembly process becomes troublesome.

The present invention was made in order to eliminate such conventional problems, and the hinge member supporting the second hinge pin has a first,
The grinding wheel is removed by forming an extension extending outside the enclosed space of the second cover, and removably attaching the extension to the movable table from the front side using tightening screws. The present invention relates to a cover device for protecting a sliding surface, which is characterized in that it can be removed by a simple operation from the front side of a movable table without any trouble.

Embodiments of the present invention will be described below based on the drawings.

In FIG. 1, 1 is a bed of a grinding machine, and a fixed base 2 is fixed onto this bed 1.

Reference numeral 3 denotes a movable table that is slidably placed on the fixed base 2 via a slide surface 4, and a grindstone 5 is rotatably supported on the movable table 3.

Reference numeral 6 denotes a first cover made of a metal plate, and as shown in FIG. 3, this first cover 6 includes an arc-shaped front plate 6a having a bent portion 6C at the lower end, and extending rearward from this front plate 6a. It has mutually parallel side plates 6b.

This side plate 6b is a horizontal cover 7 fixed to the movable table 3.
and the fixed base 2, and both ends of the bent portion 6C are swingably supported by a pair of first hinge pins 9.

Reference numeral 8 denotes a first hinge member that supports the pair of first hinge pins 9, and is tightened and fixed to the front surface of the fixed base 2 by tightening screws 20.

Reference numeral 10 denotes a second cover made of a metal plate, and as shown in FIG.
and a mutually parallel side plate 10b extending rearward from the front plate 10a.

The side plate 10b is inserted between the horizontal cover 7 fixed to the movable table and the fixed table 2, and has a guide recess 10C formed on its inner surface to slidably guide the first cover 6. There is.

Further, a pair of second hinge pins 12 are inserted through the upper end of the side plate 10b, allowing the second cover 10 to swing.

Reference numeral 11 denotes a second hinge member that supports the pair of second hinge pins 12, and this second hinge member 11 has an extending portion 11a that extends from the second hinge pin 12 to the side opposite to the surrounding side of the second cover 10. The extending portion 11a is tightened and fixed to the movable table 3 from the front side thereof by a tightening screw 21.

Note that 22 is a cover plate made of rubber, and is fixed to the front surface of the movable table 3 by a presser plate 23 and tightening screws 24.

A sealing member 13 contacts the bent portion 10C of the first cover 6, and prevents coolant from entering from below the first cover 6.

Next, to explain the operation of the device of the present invention having the above configuration, FIG. 1 is a diagram showing the state of the cover device when the movable table 3 is located at the forward end. 10 are tilted as shown in FIG. 1, and the front of the slide surface 4 is covered by the front plates 6a and 10a, and the sides of the slide surface 4 are covered by the side plates 6b and 10b, respectively, to prevent coolant from entering. Prevented.

When the movable platform 3 is moved backward from this state, the first cover 6 and the second cover 10 guide each other, and the first cover 6 swings counterclockwise around the hinge pin 9.
Further, the second cover 10 swings clockwise around the hinge pin 12 and is respectively displaced to the state shown in FIG. 5.

Regardless of the displacement of the first and second covers 6.10, the front and sides of the slide surface 4 are completely protected by the front plates 6a, 10a and the side plates 6b, 10b.

In addition, when removing the first and second covers 6.10, loosen the tightening screws 24 and remove the holding plate 23 and cover plate 22, then the tightening screws 21 can be operated from the front side of the moving table 3. exposed to the outside.

When the tightening screw 21 is loosened in this state, the hinge member 11
is removed from the front of the moving table 3, so by folding the first and second covers 6.10 forward as one, the first and second covers 6.
The inside of the cover 6.10 can be inspected.

After inspection, first fix the hinge member 11 to the front of the movable table 3 with the tightening screw 21, and then tighten the tightening screw 21.
4, the cover plate 22 and presser plate 23 are attached to the front surface of the movable table 3, and the original state is easily restored.

As described above, in the present invention, the hinge member that supports the second hinge pin is formed with an extending portion extending outside the surrounding spaces of the first and second covers, and this extending portion is tightened. Since it is removably attached to the moving table from the front side of the moving table, the tightening screw is exposed on the front side of the moving table, and this tightening screw can be easily operated from the front side of the moving table. This has the advantage that the cover device can be easily removed by tilting the hinge portion and the first and second covers forward with the tightening screws loosened.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a cross-sectional view of the main part of the cover device of the present invention, and FIG. 2 is a partially sectional view of the cover device of the present invention.
The view taken in the direction of arrow II, FIGS. 3 and 4 are perspective views showing the first cover and second cover taken out, and FIG. 5 is a cross-section of essential parts showing the state of the cover device when the movable platform is retracted. It is a diagram. 2...Fixed stand, 3...Moveable stand, 6...
...First cover, 9...First hinge pin,
DESCRIPTION OF SYMBOLS 10... Second cover, 11... Hinge member, 11a... Extending part, 12......
Second hinge pin, 21...Tightening screw.

Claims (1)

[Scope of utility model registration request] a first member attached by a hinge member to each of the fixed base and the movable base slidably supported on the fixed base;
a second hinge pin, a front plate that covers the front of the sliding surface on the fixed base, and a side plate that extends perpendicularly from the front plate to cover the sides of the sliding surface, and the second hinge pin and the second hinge pin are slidably overlapped with each other. 1. A second cover is provided, one end of the first cover is pivotally connected to a fixed base by a first hinge pin,
In the cover device in which the second cover is pivotally supported on the movable base by the second hinge pin located within the range space of the second cover, the hinge member supporting the second hinge pin is attached to the first, A slide characterized in that an extending portion extending to the outside of the enclosed space of the second cover is formed, and the extending portion is removably attached to the movable table from the front side thereof using a tightening screw. A cover device that protects the surface.