JPS61214945A - Chip collecting apparatus for machine tool - Google Patents

Abstract

PURPOSE:To collect chips smoothly by dropping chips onto a chip conveyor by inclining a cloth-shaped thin plate laid between a cutting head and a transfer table when a cutting head is raised, thus preventing the thin plate from being taken up and from forming wrinkles. CONSTITUTION:A chip conveyor 8 is installed onto a guide 7 projecting onto the side surface in the direction of shift of a Y-axis transfer table 5. While, in lower part of a head 4 having a cutter 3 movable in the vertical direction installed, a screen system taking-up apparatus 9 is installed, and the edge part of a cloth-shaped thin plate 10 taken up onto the apparatus 9 is fixed onto the guide 7 of the table 5. The cutting head 4 lowers, guided by a column 2, and the work on the tables 5 and 6 is cut by a cutter 3. Since, even if chips are scattered, the apparatus 9 pulls and rolls up the thin plate 10 by a spring, wrinkles are not formed, and chips are not caught. When the head 4 rises, and the thin plate 10 is inclined, chips are dropped onto the conveyor 8.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a chip collecting device for a machine tool, which is capable of collecting chips from a cutting machine.

[Technical background of the invention and its problems]

It takes a lot of manpower to collect chips that have fallen between the columns and moving tables of machine tools such as machining centers.
This was becoming a bottleneck for unmanned operations. Conventional bellows and drive covers made of steel plates are heavy and expensive because chips tend to stick to the bellows, require a long cover storage space, and are expensive.

[Purpose of the invention]

The present invention was developed in view of the above points, and even if the distance between the cutting head and the movable table suddenly changes from zero to m, the chips that fall between them can be automatically flowed smoothly in a fixed direction. The purpose of the present invention is to provide a chip collecting device for a machine tool that can collect chips using a chip conveyor or the like.

[Summary of the invention]

In order to achieve the above object, according to the present invention, a cloth-like thin plate that is rolled up by a winding device to automatically collect chips of a machine tool is stretched between the cutting head and the movable table. When the cloth-like thin plate is raised, it is tilted so that the chips flow into the chip conveyor at the end of the moving table.By winding up the thin plate even if there is no distance between the cutting head and the moving table, the thin plate is It is possible to collect chips smoothly without wrinkles, and it can be used as an unmanned machine tool.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows the overall structure of a machine tool equipped with a chip collecting device, and FIG. 2 shows a winding device in the chip collecting device. A head 4 with a cutter 3 attached thereto is attached to a column 2 established on a base 1 so as to be movable up and down.

A Y-axis moving table 5 and an X-axis moving table 6 are placed on the pace l. A guide 7 is provided to protrude from the side surface of the Y-axis moving table 6 in the direction of movement, and a step conveyor 8 is disposed on the guide 7. On the other hand, at the bottom of the head 4 there is a screen-type winding device [9] whose details are shown in FIG.
A cloth-like thin plate lO is attached to the device 9 and wound up by this device 9.
The end portion is fixed to the guide 7 of the Y-axis moving table 5. The winding device [9 has one end of the cloth-like thin plate 10 attached to the other end of a spiral spring 13, one end of which is fixed to a core $12 inserted into a cylindrical case 11. As a result, the thin cloth plate 10 is rolled up into the case 11 by the restoring force of the spring 13. By fixing the cloth-like thin plate 10 to the guide 7 to which a winding force is constantly applied in this manner, a screen is provided between the movable table 5.6 and the column 6. The cloth-like thin plate 10 is made of gold! 4. It is possible to select a plate-shaped material that can be rolled up, such as plastic, cloth, rubber, or glass fiber.

Note that 14 is a wiper for preventing chips from entering into the case 11.

Next, the operation of the above-mentioned chip collecting device will be explained with reference to FIG. The cutting head 4 is guided down by the column 2, and the cutter 3 cuts a workpiece placed on a table 6.6 (not shown). Even if chips are scattered, the winding device 9 of the screen-type chip collecting device , is attached to the cutting head 4, and one end of the cloth-like thin plate lO is attached to the end of the guide 7 of the Y-axis moving table 5.Furthermore, the winding device 9 is attached to the spiral spring 13 as shown in FIG. Since the thin plate IO is pulled and rolled up, there are no wrinkles and there is no chance of chips getting stuck. When the cutting head 4 rises and the cloth-like thin plate lO is tilted as shown in FIG. 1, the chips are dropped into the chip conveyor 8.

Further, since the wiper 11 is provided to prevent chips from being rolled in, chips can be prevented from entering the case 11 when the cloth-like thin plate 10 is rolled up.

In this way, according to the above structure, a screen-like thin cloth plate is interposed between the movable table and the head 4, so chips are not scattered, and the cloth is moved in accordance with the vertical movement of the head 4. Since the thin plate 10 moves in and out of the winding device 9, the thin plate does not get in the way and can be dropped into the chip conveyor 8 when the head 4 rises.

〔Effect of the invention〕

As explained above, according to the present invention, even if the cutting head and the moving table approach or separate, the chips that fall between them will be removed.
The chip conveyor 1 can be collected using light and wide cloth-like thin plates without accumulation, and can be used as an unmanned machine tool chip gathering device.

[Brief explanation of drawings]

Fig. ts1 is a perspective view of an embodiment of the present invention, and Fig. 2 is an explanatory diagram showing the structure of a winding device for a cloth-like thin plate.

Claims (1)

[Claims] Column, head supported on this column so that it can move up and down,
In a machine tool equipped with a moving table arranged to be movable toward and away from the column, and a chip conveyor arranged between the moving table and the column, the machine tool moves in conjunction with the upward and downward movements of the bed. A winding device equipped with a cloth-like thin plate is disposed on the column side so as to move the cloth-like thin plate, and this winding device constantly applies winding force to the cloth-like thin plate to the winding device and A chip collection device for a machine tool, wherein one side of the chip is attached to a movable table member so that chips on a cloth-like thin plate fall onto the chip conveyor.