JP2004106129A - Cutting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To effectively prevent chips from dispersing and sticking to respective components of a working machine. <P>SOLUTION: A frame 15, a table 2 disposed on the frame 15 movably in the XY direction and moving the work in the XY direction, a support part 5 fixed on the frame and supporting a spindle 8 rotating a working tool 10 for cutting the work, first cover parts 3A and 3B disposed on the table surrounding the work, and a second cover part 4 disposed on the support part sealing the first cover parts. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a technique for preventing scattering of chips generated by cutting a workpiece in a machine tool.
[0002]
[Prior art]
Conventionally, chips spilled from a workpiece scatter around and hinder processing and sliding of the stage of the machine tool, or scatter on the floor to hinder traffic. It is configured so as to cover the entire machine and prevent scattering of chips.
[0003]
For example, as such a technique, a technique disclosed in Japanese Patent No. 2965741 is known. This is an opening / closing door device for an entire cover of a machine tool, which covers the entire machine for the purpose of preventing chips and cutting oil from scattering.
[0004]
[Problems to be solved by the invention]
However, in the above-mentioned conventional example, since the scattering of the chips is prevented by covering the entire machine tool with the cover, there are the following disadvantages.
(1) Chips are applied to the inner stages, sensors, and the like covered by the cover.
(2) When the entire machine tool is covered with the cover, chips are scattered in places other than the cutting table, and when there are projections such as dents and bolts, sufficient cleaning cannot be performed.
(3) If the entire machine tool is covered by the cover, the bellows of the stage, the cover, and the like cannot be removed due to the scattering of chips, which leads to an increase in cost.
[0005]
Accordingly, the present invention has been made in view of the above-described problems, and an object of the present invention is to effectively prevent scattering of chips and attachment of chips to various parts of a machine tool.
[0006]
[Means for Solving the Problems]
In order to solve the above-described problems and achieve the object, a cutting apparatus according to the present invention includes a gantry, a table movably arranged in the XY directions on the gantry, and a table for moving a workpiece in the XY directions. A support portion fixed on a gantry and supporting a spindle for rotating a processing tool for cutting the work, a first cover portion arranged so as to surround the work on the table, and the support portion A second cover portion arranged to seal the first cover portion.
[0007]
In the cutting apparatus according to the present invention, the first cover portion is formed in a tubular shape, and the second cover portion is formed in a flat plate shape to close an end of the tubular first cover portion. It is characterized by being formed.
[0008]
Further, the cutting apparatus according to the present invention is further characterized by further comprising an elastic member for sealing a gap between the first cover and the second cover.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a preferred embodiment of the present invention will be described.
[0010]
First, an outline of an embodiment will be described.
[0011]
In this embodiment, the machine tool (cutting device) 1 has a chip cover device that covers the cutting table 2 with a two-body structure of an upper cover 4 and chip covers 3A and 3B.
[0012]
In the above configuration, the means for preventing the scattering is such that the upper cover 4 is fixed to the column 5, the chip covers 3A and 3B are fixed to the movable cutting table 2, and the processing tool 10 cuts the workpiece 11. When it is done, it always covers the cutting table 2.
[0013]
The means for filling the gap between the chip covers 3A, 3B and the upper cover 4 is provided by means of durability such as rubber and sponge between an arbitrary position on the lower surface of the upper cover 4 and the outer periphery of the chip covers 3A, 3B. Using a flexible material, the two-piece chip cover 3A, 3B and the upper cover 4 are mounted so as to slide smoothly.
[0014]
In this configuration, it is possible to prevent the chips cut from the work 11 from scattering to the surroundings by covering the cutting table with the chip covers 3A and 3B and the upper cover 4.
Hereinafter, the present embodiment will be specifically described.
[0015]
1 and 2 are a perspective view and a front view of a machine tool and a chip cover device according to the present embodiment. FIG. 3 is a detailed view of the upper cover 4, and FIG. 4 is a detailed view of the chip covers 3A and 3B. FIG. 5 is a perspective view showing a detailed structure of the cutting table 2, and FIGS. 6 and 7 are sectional views of the chip cover device and diagrams showing a moving range of the chip covers 3A and 3B.
[0016]
In FIG. 1, a machine tool 1 is a three-axis machine tool including a Z-axis stage 17 supported on a column 5 fixed on a gantry 15 and an XY-axis stage 16 mounted on the gantry 15.
[0017]
The cutting table 2 is fixed to an XY-axis stage 16, on which a work 11 is attached by a positioning guide, and cutting is performed by the processing tool 10. Further, the side surfaces of the processing area are covered with the chip covers 3A, 3B (FIG. 4) fixed to the cutting table 2, the upper cover 4 is slid with respect to the mounting stay 7A (FIG. 3), and the cutting covers 3A, 3B are moved. Fix so as to cover from the top.
[0018]
In the cutting using the machine tool 1, the XY-axis stage 16 and the Z-axis stage 17 move according to the processing data created by the CAM, and the chip covers 3A and 3B move together with the XY-axis stage 16 moving in the horizontal direction. The moving range is always covered by the upper cover 4 fixed to the column 5 (FIG. 7). Chips cut from the work 11 scatter in all directions, and their shapes are various from powdery to spiral.
[0019]
In the chip cover device of the present embodiment, the chip covers 3A and 3B are mounted on the upper surface of the cutting table 2 so as to cover the cutting area, and the upper cover 4 is fixed to the column 5.
[0020]
Between the chip cover 3A, 3B and the upper cover 4, rubber or sponge 9A, 9B (FIG. 7) is processed according to the shape of the gap to fill the gap, and is fixed to the chip cover 3A, 3B for cutting. The structure is such that the powder does not fly outside through the gap.
[0021]
The upper cover 4 is fixed to the column 5 via mounting stays 7A and 7B (FIG. 3). The suction nozzle cover 6 attached to the upper cover 4 is arranged such that chips are not scattered outside the spindle 8 even when the spindle 8 is slid up and down along with the Z axis during processing (FIG. 6).
[0022]
The clearance between the spindle 8 and the suction nozzle cover 6 is designed so that the chips do not fly out of the clearance, and are designed so that the chips do not fly outside through the clearance.
[0023]
As described above, by mounting the chip cover device of the present embodiment on a machine tool, chip scattering can be prevented even in dry processing in which chips are easily dispersed.
[0024]
By providing the upper cover 4 and the chip covers 3A and 3B having a two-body structure for the purpose of preventing chip scattering, the object can be achieved without covering the entire machine tool.
[0025]
In the present embodiment, the case is described in which the rubber or sponge 9A, 9B that fills the gap between the upper cover 4 and the chip cover 3A, 3B is attached to the chip cover 3A, 3B, but the rubber or sponge 9A that fills the gap. , 9B may be attached to the upper cover 4 or attached to both the upper cover 4 and the chip covers 3A, 3B.
[0026]
The member for filling the gap between the upper cover 4 and the chip covers 3A and 3B is not limited to rubber and sponge, but may be another elastic material.
[0027]
As described above, according to the present embodiment, the cutting table 2 is covered with the two-piece structure of the chip covers 3A and 3B and the upper cover 4, thereby preventing chips from the work 11 from scattering around. it can.
[0028]
Also, in the conventional machine tool, cutting oil was used as a method of preventing chips from scattering.However, by mounting the chip cover device of the present embodiment, chips can be prevented from being scattered, and dry processing can be performed. Can be realized. In the dry processing, since the cutting oil does not adhere to the work 11, cleaning equipment is not required, and the processing cost can be reduced.
[0029]
【The invention's effect】
As described above, according to the present invention, it is possible to effectively prevent scattering of chips and attachment of chips to various parts of a machine tool.
[Brief description of the drawings]
FIG. 1 is a perspective view illustrating a machine tool and a chip cover device according to an embodiment of the present invention.
FIG. 2 is a side view illustrating a machine tool and a chip cover device according to an embodiment of the present invention.
FIG. 3 is a perspective view illustrating a detailed configuration of an upper cover.
FIG. 4 is a perspective view illustrating a detailed configuration of a chip cover.
FIG. 5 is a perspective view of a cutting table.
FIG. 6 is a sectional view illustrating a chip cover device.
FIG. 7 is a diagram illustrating a moving range of the chip cover with respect to the upper cover.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Machine tool 2 Cutting table 3A, 3B Chip cover 4 Upper cover 5 Column 6 Suction nozzle cover 7A, 7B Mounting stay 8 Spindle 9A, 9B Rubber or sponge 10 Processing tool 11 Work 15 Mount 16 XY axis stage 17 Z axis stage

Claims (3)

A trestle,
A table that is arranged on the gantry so as to be movable in the XY directions, and that moves the work in the XY directions;
A support portion fixed on the gantry and supporting a spindle for rotating a processing tool for cutting the work,
A first cover portion disposed on the table so as to surround the work;
A cutting device, comprising: a second cover portion disposed on the support portion so as to seal the first cover portion. The said 1st cover part is formed in cylindrical shape, The said 2nd cover part is formed in the flat plate shape which closes the edge part of the said cylindrical 1st cover part, The characterized by the above-mentioned. 2. The cutting device according to 1. The cutting device according to claim 2, further comprising an elastic member that seals a gap between the first cover portion and the second cover portion.

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