JP2006021296A - Machine tool with blowing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a machine tool with a blowing device capable of effectively cleaning a work supporting means to support a work without preventing machining. <P>SOLUTION: This machine tool is furnished with the work supporting means 6 to support the work W and a tool supporting means 2 positioned in front of this work supporting means 6 and at least free to move in the longitudinal direction by supporting a tool 16 to machine the work W. A holding means 17 to hold the work W in order to draw the work 7 out of the work supporting means 6 is provided on the tool supporting means 2. The blowing device 18 the blowing direction of which is directed to the side of the work supporting means 6 and to discharge air or fluid for cleaning such as a coolant, etc. is provided on this holding means 17. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a machine tool with a blow device such as a lathe having a function of cleaning a work support means such as a spindle chuck.

  Conventionally, cleaning of a chuck in a machine tool such as a lathe is performed by blowing air or coolant toward the chuck 21 from a blow pipe 22 provided above the chuck 21 as shown in FIG. 4.

  However, in the configuration in which the blow pipe 22 is provided above the chuck 21, air or coolant cannot be sprayed from the front of the chuck 21, and effective cleaning of the chuck 21 cannot be performed. Further, when the blow pipe 22 is provided on the front side of the chuck 21, there is a problem that the blow pipe 22 hinders processing.

An object of the present invention is to provide a machine tool with a blow device that can effectively clean a workpiece support means without hindering machining.
Another object of the present invention is to be able to clean the workpiece gripping surface of the workpiece support means and to grip the workpiece to be processed next without any dust.
Yet another object of the present invention is to enable cleaning closer to the workpiece.

A machine tool with a blow device according to the present invention includes a workpiece support means for supporting a workpiece, and a tool support that is positioned in front of the workpiece support means and that supports a tool for machining the workpiece and is movable at least in the front-rear direction. Provided with a gripping means for gripping the workpiece in order to pull out the workpiece from the workpiece support means, and the gripping means is provided with a blowing device for discharging the fluid with the blowing direction facing the workpiece support means side. It is provided. The blow device may be one that blows air or one that ejects coolant.
According to this configuration, the gripping means is used for a procedure of pulling out a workpiece such as a bar material by moving the tool support means. The gripping means is positioned in front of the work support means when the work is pulled out, but is retracted by the tool support means during subsequent processing. Since the blow device is provided in the gripping means that performs such a movement, there is no special mechanism for installing the blow device, and the blow device does not interfere with processing, and for cleaning air or coolant. Cleaning or washing can be effectively performed by discharging the fluid.

In the present invention, the work support means comprises a chuck device that supports the outer periphery of the work. When the work is pulled out, the work is unchucked, and the blow device cleans between the work and the unchucked chuck device. There may be.
In this configuration, since the fluid is discharged from the blow device when unchucked when the workpiece is pulled out, the workpiece gripping surface of the workpiece support means can be cleaned, and the workpiece to be processed next can be removed without dust. It can be gripped.

In this invention, the discharge port of the blow device may be provided between a plurality of workpiece gripping claws of the gripping means.
If there is a discharge port between the plurality of workpiece gripping claws, the cleaning fluid can be discharged at a position closer to the workpiece support means, and the workpiece support means can be more effectively cleaned.

A machine tool with a blow device according to the present invention includes a workpiece support means for supporting a workpiece, and a tool support that is positioned in front of the workpiece support means and that supports a tool for machining the workpiece and is movable at least in the front-rear direction. Provided with a gripping means for gripping the workpiece in order to pull out the workpiece from the workpiece support means, and the gripping means is provided with a blowing device for discharging the fluid with the blowing direction facing the workpiece support means side. Therefore, the work supporting means for supporting the work can be effectively cleaned without providing a special mechanism for installing the blowing apparatus and without hindering the processing by the blowing apparatus.
When the workpiece support means is composed of a chuck device that supports the outer periphery of the workpiece, the workpiece is unchucked when the workpiece is pulled out, and the blow device cleans between the workpiece and the chucked chuck device. The workpiece gripping surface of the workpiece support means can be cleaned, and the workpiece to be processed next can be gripped without dust.
When the discharge port of the blowing device is provided between the plurality of workpiece gripping claws of the gripping means, cleaning can be performed closer to the workpiece.

  An embodiment of the present invention will be described with reference to FIGS. FIG. 1 and FIG. 2 are a plan view and a front view schematically showing a machine tool with a blow device of this embodiment. This machine tool with a blow device is a lathe that processes a bar-shaped workpiece W, and includes a spindle unit 1 and a tool support means 2 that supports a tool 16 that processes the workpiece W. The spindle unit 1 is configured such that a spindle 5 is rotatably installed on a spindle base 4 fixed on a bed 3, and a bar-shaped workpiece W penetrating the axis of the spindle 5 is supported at the front end of the spindle 5 during processing. A spindle chuck 6 is provided as a work support means. In other words, the work support means is a chuck device composed of the spindle chuck 6. The spindle chuck 6 grips the outer periphery of the workpiece W with a plurality of chuck claws 6a.

  The tool support means 2 is a tool post unit having a turret 9. The turret 9 is movable through a feed base 7 and an upper feed base 8 in a front-rear direction (Z-axis direction) along the axis of the main shaft 5 and in an oblique direction perpendicular to the axis of the main shaft 5. . The feed base 7 is installed on a guide rail 10 on the inclined surface 3a of the bed 3 so as to be movable back and forth at one side of the spindle unit 1 and is driven forward and backward by a servo motor 11 and a feed screw 12. The upper feed base 8 is movable in an oblique direction along the inclined surface 3 a on the guide rail 13 provided on the feed base 7, and is driven forward and backward by a servo motor 14 and a feed screw 15.

  The turret 9 has a plurality of tool stations on the outer periphery and is installed on the upper feed base 8 so as to be indexed and rotated in a posture parallel to the axis of the main shaft 5. Each tool station is provided with a tool 16 such as a cutting tool for cutting. In some tool stations, gripping means 17 for gripping the workpiece W in order to pull out the bar-shaped workpiece W from the spindle chuck 6 is installed instead of the tool 16. The gripping means 17 has a plurality (here, two) of work gripping claws 17a and 17a, and grips the workpiece W with these work gripping claws 17a and 17a. This kind of pulling gripping means 17 is called a bar puller or the like.

  The gripping means 17 is provided with a blow device 18 that discharges a cleaning fluid with the blow direction facing the spindle chuck 6 side. The cleaning fluid is air or coolant, and is connected to a fluid supply source such as a blower or a pump by a fluid pipe (both not shown). The fluid pipe is provided through the turret 9 or the like. The discharge port of the blow device 18 is disposed between the plurality of workpiece gripping claws 17a and 17a.

  Next, a processing procedure of the bar-shaped workpiece W by the machine tool with the blow device will be described. In the tool support means 2, the gripping means 17 is indexed by the indexing rotation of the turret 9, and the turret 9 is inclined forward and backward and along the inclined surface 3 a of the bed 3 by the movement of the feed base 7 and the upper feed base 8. Move to. As a result, the tip of the bar-shaped workpiece W protruding forward from the spindle chuck 6 as the workpiece support means is gripped by the gripping means 17. Next, in order to pull the bar-shaped workpiece W forward from the spindle chuck 6, the spindle chuck 6 becomes an unchuck.

  At this time, a cleaning fluid such as air or coolant is blown from the blow device 18 provided in the gripping means 17 toward the front surface of the spindle chuck 6 to clean the space between the workpiece W and the chucked chuck claw 6a. . When the turret 9 of the tool support means 2 moves forward in this unchucked state, the bar-shaped workpiece W is pulled out from the spindle chuck 6 by a predetermined length.

  In this way, since cleaning is performed by air blow or coolant blow in the unchucked state, the workpiece gripping surface of the chuck claw 6a of the spindle chuck 6 can be cleaned cleanly, and the part where the bar-shaped workpiece W is pulled out is cleaned It can be gripped with. Further, since the spindle chuck 6 is cleaned when the bar-shaped workpiece W is pulled out, no dedicated time is required for cleaning the spindle chuck 6, and the cycle time can be shortened.

  The workpiece W pulled out by the gripping means 17 is again gripped by the spindle chuck 6 and the gripping means 17 releases the gripping of the workpiece W. After that, the turret 9 is indexed and rotated at a position retracted from the workpiece W, a predetermined tool 16 used for cutting the workpiece W is indexed, and the tool 16 is pulled out from the spindle chuck 6 of the bar-shaped workpiece W. The part is processed. When the machining is completed, the machining completion portion is cut off, and thereafter, the cleaning of the spindle chuck 6, the drawing of the workpiece W, and the machining of the drawn portion are repeated in the same procedure as described above.

  Thus, in this machine tool with a blow device, the turret 9 of the tool support means 2 is provided with the gripping means 17 for gripping the work W in order to pull out the work W from the spindle chuck 6, and the gripping means 17 is provided with air or Since the blow device 18 that discharges a cleaning fluid such as coolant is provided, a special mechanism is not provided for installing the blow device 18, and the blow device 18 does not interfere with processing, so that the spindle chuck 6 can be operated. Cleaning or washing can be performed effectively.

  Further, since the discharge port of the blow device 18 is provided between the plurality of workpiece gripping claws 17a of the gripping means 17, the cleaning fluid can be discharged at a position closer to the spindle chuck 6 which is the work support means. Yes, the spindle chuck 6 can be cleaned more effectively.

  In addition, although the said embodiment demonstrated about the case where it applied to the formal lathe which the turret 9 moves on a slope, it can apply also to the lathe where the tool post which is a tool support body of this invention moves horizontally. It can also be applied to machine tools other than lathes.

It is a top view which shows schematic structure of the machine tool with a blower concerning one Embodiment of this invention. It is a front view of the machine tool. It is operation | movement explanatory drawing of the machine tool. It is a partial side view of a prior art example.

Explanation of symbols

2 ... Tool support means 6 ... Spindle chuck (work support means)
6a ... chuck claw 16 ... tool 17 ... gripping means 17a ... work gripping claw 18 ... blower

Claims (3)

  A workpiece support means for supporting the workpiece; and a tool support means that is positioned in front of the workpiece support means and supports a tool for machining the workpiece and is movable at least in the front-rear direction. With a blowing device characterized in that a gripping means for gripping the workpiece is provided in order to pull out the workpiece from the workpiece support means, and a blow device is provided on the gripping means so that the blowing direction is directed toward the workpiece support means and the fluid is discharged. Machine Tools.   2. The work supporting means comprises a chuck device that supports the outer periphery of the work, and unchucks when the work is pulled out, and the blow device cleans between the work and the unchucked chuck device. The machine tool with the blow device described. 3. A machine tool with a blow device according to claim 1, wherein the discharge port of the blow device is provided between a plurality of workpiece gripping claws of the gripping means.

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