JPS6248447A - Slide cover for machine tool - Google Patents

Abstract

PURPOSE:To protect by an auxiliary cover a slide surface from a dropping material through a seam of slide covers, when they are extended, while to hang down the auxiliary cover by its dead weight preventing its influence from being given to contraction of the slide covers, when they are contracted, by pivotally mounting the auxiliary cover, placed extending in a bottom surface of the other slide over, to a bottom surface of the slide cover in the end of a table. CONSTITUTION:A machine tool, fixing a slide cover 5a to the end surface of a table 4 and pivotally mounting by a pin 13 to the bottom surface of the slide cover 5a an auxiliary cover 12 placed extending in the bottom surface of a slide cover 5b in an intermediate stage, provides a roller 14 supporting the auxiliary cover 12 almost parallelly with a slide surface. And if the table 4 moves leftward to place the slide covers 5a, 5b, 5c in an extended condition, the auxiliary cover 12, integrally moving with the slide covers and being parallelly positioned with the slide surface 3 in the bottom surfaces of the slide covers 5a, 5b, receives cutting chips and a coolant, dropping from a seam, to be stopped. While the table moves rightward, and if the slide covers 5a, 5b, 5c are contracted, the machine tool suspends the auxiliary cover 12, supported by the roller 14, by dead weight, permitting the slide covers 5a, 5b to be contracted.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a slide cover for protecting the sliding surface of a slide base from chips and coolant in a machine tool.

<Prior art> A slide cover protects the sliding surface of a machine tool's slide base from chips and coolant. It is composed of a plurality of slide covers that are stacked and connected in sequence and expand and contract on the slide surface based on movement.

<Problems to be solved by the invention> In order to reduce the amount of protrusion of the slide covers from the edge of the table when a plurality of slide covers are retracted,
You can increase the number of covers (and shorten the length of each horn bar).

However, shortening the length of each cover and increasing the number of covers means that there are many seams in each layer, which increases the rate at which fine chips and coolant fall onto the slide surface from the seams. This may damage the slide surface.

Means for Solving the Problems> In order to solve the above-mentioned conventional problems, the present invention provides a table end that is slidably guided on a slide surface on a slide base, and an end portion of the slide base. In a plurality of slide covers that are stacked and connected in sequence and expand and contract on the slide surface based on the movement of the table, the lower surface of the slide cover fixed to the edge of the table extends over the lower surface of the other slide covers. An extending auxiliary cover is pivotally mounted.

Function> According to the present invention, when the slide cover extends and contracts, the auxiliary cover is located on the lower surface of the slide cover, approximately parallel to the slide surface, and moves together with the slide cover's extension and contraction movement, and when the slide cover extends and contracts, the auxiliary cover is positioned approximately vertically. direction to allow the slide cover to shrink.

Embodiments Hereinafter, embodiments of the present invention will be described based on the drawings. In FIGS. 1 to 3, 1 is a bed, 2 is a slide base fixed to the bed 1, and a slide surface 3 is formed on the upper surface of the slide base. A table 4 is installed on this sliding surface 3 so as to be slidable in the left and right directions in the figure by means of a circuit feeding device.

5a, 5b, and 5c are slide covers for protecting the slide surface 3 from powder and coolant. In this case, it is composed of three sheets, but it may be three or more sheets.

The slide covers 5a, 5c, and 5b are stacked one after another, with the lowermost slide cover 58 being fixed to the end surface of the table 4, and the uppermost slide cover 50 being fixed to a guide rail 8, which will be described later. The lowermost and middle slide covers 5a and 5b are movably supported by support legs 9 and rollers 10 on guide rails fixed to the side ends of the slide base 2 in parallel with the slide surface 3. Further, a sealing member 6 and a stopper 7 are provided at the joints of the stacked tiers of each slide cover 5a = 5b * 5c, and the sealing member 6 and stopper 7 abut against each other to close the slide cover 5 in the middle tier.
b is drawn out. Reference numeral 11 denotes an entire cover fixed to the bed l.

In the above configuration, the present invention pivots an auxiliary cover 12 extending over the lower surface of the middle slide cover 5b to the lower surface of the lowermost slide cover 5a fixed to the end surface of the table 4 by means of a pin 13, A roller I4 is provided at the end of the slide base 2 to support the auxiliary cover 12 substantially parallel to the slide surface.

Since the present invention has the above-described structure, when the table 4 moves to the left as shown in FIG.
a hooks the seal member 6 of the middle slide cover 5b with the stopper 7 and pulls it out, and then the slide cover 5a is removed.
, 5b.

5c is in an extended state and protects the slide surface 3 from chips and coolant. At this time, the auxiliary cover 12 is
4 and moves together with the slide cover 58, and is positioned parallel to the slide surface 3 on the lower surface of the slide covers 5a, 5b to catch and stop chips and coolant falling from the joint between the slide covers 5a, 5b.

When table 4 moves to the right end as shown in Figure 2,
The slide covers 5a, 5b, 5c are contracted, and the movable slide covers 5a, 5b are stored in a state overlapping the lower surface of the slide cover 50 fixed to the guide rail 8. At this time, when the auxiliary cover 12 supported by the roller 14 comes off the roller 14, it is suspended by its own weight using the bin 13 as a fulcrum, and the slide cover 5a,
5b is allowed to shrink.

<Effects of the Invention> As described above, according to the present invention, the auxiliary cover is pivotally attached to the lower surface of the slide cover which is configured to be extendable and retractable in multiple stages using a plurality of sheets, and the slide base is guided by a table when the slide cover is extended and retracted. Since it is supported approximately parallel to the slide surface, chips that fall from the joints of each slide cover,
The auxiliary cover receives the coolant and protects the slide surface from chips and coolant, and when the slide cover is in the contracted state, the auxiliary cover hangs down due to its own weight, so it does not affect the contraction of the slide cover.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of the elongated disease according to the present invention, FIG. 2 is a cross-sectional view of the contracted state, and FIG. 3 is a cross-sectional view taken along the line ■--■ in FIG. 1. ■...Bed, 2...Slide base, 3...Slide surface, 4...Table, 5a. 5b, 5c...slide cover! 2...Auxiliary cover, 13...Bin, 14...Roller.

Claims (1)

[Claims] A plurality of sequentially stacked and connected sheets that extend and contract on the slide surface based on movement of the table between an end of the table slidably guided by the slide surface on the slide base and the end of the slide base. A slide cover for a machine tool, in which an auxiliary cover is pivotally attached to the lower surface of a slide cover fixed to an end of a table and extends over the lower surface of another slide cover.