JPH11226842A - Chip and cutting agent scattering prevention device for machine tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate a space and prevent scattering of chips and cutting agent by forming an expandable cover in such a way that it is positioned on substantially same face as a front face of a spindle head and bringing a portal cover for front face close to the front face of the spindle head and the expandable cover by reducing a clearance. SOLUTION: Front faces of expandable covers 6, 6 are formed in such a way that they are positioned on substantially same face as a front face of a spindle head 5. A portal cover for front face 7 is attached by bringing it close to the front face of the spindle head 5 and the front faces of both expandable covers 6, 6 to reduce a space. Scattering of chips and cutting agent which occur at the time of machining work to the outside is prevented by the portal cover for front and rear faces 7. Furthermore, since the spindle head and both expandable covers 6, 6 are brought close to the portal cover for front face 7 to reduce a clearance, an upper part of machine tool is not in an open condition, and scattering of chips and cutting agent from the above is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scatter prevention device for preventing swarf, cutting agent and the like generated during machining operation of a portal machine tool.

[0002]

2. Description of the Related Art In a conventional portal machine tool, a cross rail A is provided so as to cross columns on both sides as shown in FIG. 7, and a spindle head C attached to a saddle B is mounted on the cross rail in the cross direction (Y direction). By mounting the telescopic cover D connected to the spindle head C on the front surface of the cross rail A and moving the table in the horizontal direction (X-axis direction). Although processing is performed, chips and cutting materials are scattered because a large space F exists between the spindle head C, the telescopic cover D, and the top cover E as shown in the figure.

[0003]

In the above-mentioned portal type machine tool, the chip scatter prevention means is provided with a side scatter prevention cover attached to both sides of the table. In this case, the side surface is cut to some extent. Can be prevented. However, since the upper part is open, the scattering from the upper part cannot be prevented.

[0004] In addition, there is also used one in which an upper surface prevention cover is attached to a side surface scattering prevention cover. However, since the spindle head protrudes forward from the telescopic cover, even if the upper surface cover is attached, the front surface of the spindle head remains in contact. There is a problem that a large space is formed between the front surface of the telescopic cover and the chip and the cutting agent scatter upward from the space.

Therefore, in the present invention, the front surface of the spindle head and the front surface of the telescopic cover are made substantially flush with each other to eliminate space and prevent scattering.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, according to the present invention, a cross rail is mounted on an upper surface of a column on both sides, a saddle which moves horizontally on the cross rail, and a main shaft which can move vertically with respect to the saddle. In a machine tool having a head attached, a telescopic cover attached between both sides of a saddle on which the spindle head is attached and both ends of the cross rail is formed so as to be located substantially flush with the front surface of the spindle head. Set the cover close to the front of the spindle head and the telescopic cover so as to reduce the gap, or form the cross rail so that it can move up and down with respect to the column, and install the side covers on both sides to form a box. A space is provided to allow the spindle head to move, and the end is attached to the lower surface of the cross rail to constitute a device for preventing chips and cutting agents from scattering on machine tools.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to FIGS.
A table 2 that can be moved in the horizontal direction (X-axis direction) is provided between the two, and a cross rail 3 is installed on the upper surface of the columns 1 and
The saddle 4 is attached to the cross rail 3 so as to move in the horizontal direction (Y-axis direction) crossing the moving direction of the table 2, and the spindle head 5 of the saddle 4 is moved vertically (Z-axis direction) with respect to the table 2. It is installed so that it can be moved to.

Further, telescopic covers 6 and 6 formed of telescopic covers which can be extended and contracted and which cover the sliding surface of the cross rail 3 are attached between both ends of the saddle 4 and both ends of the cross rail 3. I have. This elastic cover 6,6
Is formed so as to be substantially flush with the front surface of the spindle head 5.

A gate-shaped front cover 7 is provided on the front of the columns 1 and 1. The front gate-shaped cover 7 is mounted close to the front face of the spindle head 5 and the front faces of the two telescopic covers 6, 6, so that the space is reduced.

A rear gate-shaped cover 8 having a gate shape on the rear surface of the columns 1 and 1 is attached to the rear surface of the cross rail 3 so as to approach the rear surface. Further, a splash-preventing non-slip 9 is attached to the front of the front gate 7.

The embodiment of the present invention is constructed as described above. Chips and chipping agents generated during the machining operation are prevented from being scattered to the outside by the front and rear gate-shaped covers 7 and 8, and furthermore, the main spindle. Head and both telescopic covers 6, 6 and front gate cover 7
Are made closer to each other so that the gap becomes smaller, so that the upper part is not in an open state, and scattering from above is also prevented.

Although the front and rear gate-shaped covers 7 and 8 are not shown, they may be configured so that they can be moved manually or automatically by installing a drive source.

Next, another embodiment will be described with reference to FIG. 3 and subsequent figures. In this embodiment, the cross rail 3 moves up and down.

That is, the cross rail 3 is connected to the columns 1 and 2 on both sides.
1, and the side covers 10, 10 on both sides are installed so as to be located on both sides of the table as in the conventional case. The upper surface cover 11 is formed in a box shape, and a space portion 13 is formed on the upper surface portion 12 so that the spindle head 5 can be moved left and right and up and down. 14 ′ is formed, and the fixing portions 14 and 14 ′ are fixed to the lower surface of the cross rail 3. The front part 15 is provided on the front surface of the upper part 12 so as to face downward. The side wall 16 of the top cover 11 is
The cross rail 3 is formed so as to be sufficiently larger than the distance L at which the cross rail 3 moves up and down with respect to the upper ends of 0 and 10.

The other parts are the same as those of the above-mentioned embodiment, so that illustration and explanation are omitted.

In this embodiment, the cross rail 3 moves up and down. To cope with this, the upper cover 11 is provided with a space 13 so that the spindle head 5 can move freely and the cross rail 3 moves up and down. Is formed so as to be able to ascend and descend along with, so that scattering of chips and the like is prevented.

[0017]

Since the present invention has the above-described structure and operation, there is no upward space formed on both sides of the spindle head, and it is possible to reliably prevent scattering from above. Which is extremely practical.

[0018]

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the apparatus of the present invention.

FIG. 2 is a plan view thereof.

FIG. 3 is a front view showing another embodiment.

FIG. 4 is a side view in which the top cover is cut away.

FIG. 5 is a plan view thereof.

FIG. 6 is a perspective view of a top cover.

FIG. 7 is a plan view of a conventional machine tool.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Column 2 Table 3 Cross rail 4 Saddle 5 Spindle head 6 Telescopic cover 7 Front gate cover 8 Rear gate cover 9 Shatterproof noren 10 Side cover 11 Top cover 12 Top section 13 Space section 14 Fixed section 14 'Fixed section 15 Front part 16 Side wall A Cross rail B Saddle C Spindle head D Telescopic cover E Top cover F Space

Claims (2)

[Claims] 1. A machine tool having a cross rail mounted on the upper surface of columns on both sides, a saddle moving horizontally on the cross rail, and a spindle head movable vertically with respect to the saddle. The telescopic cover attached between both sides and both ends of the cross rail is formed so as to be located substantially on the same plane as the front face of the spindle head, and the front portal cover reduces the gap between the front face of the spindle head and the telescopic cover. A scattering prevention device for chips and cutting agents of a machine tool, which is installed close to the machine. 2. A cross rail is formed so as to be able to move up and down with respect to the column, side covers are provided on both sides, a box-shaped upper cover is provided with a space portion in which the spindle head can move, and an end portion of the cross rail is provided. 2. The device for preventing chips and cutting agents from scattering on a machine tool according to claim 1, wherein the device is attached to a lower surface.