JP5094584B2 - Machine tool cutting powder processing equipment - Google Patents

Description

  The present invention relates to a cutting powder processing apparatus for machine tools, and more particularly, to a cutting powder processing apparatus for collecting dust-like cutting powder generated during processing of light metal.

For example, there is a device described in Patent Document 1 as an apparatus for collecting cutting powder generated during cutting of a synthetic resin workpiece. This consists of a cooling air nozzle that supplies cooling air to the tool, a blowout air nozzle that drops cutting powder toward the suction port of the suction pipe, a recovery tank connected to the suction pipe, and a negative pressure inside the recovery tank. And a Roots-type blower for supplying pressure air to both the air nozzles.
Utility Model Registration No. 3130735

  In the conventional cutting powder processing apparatus, since the cutting powder is dropped toward the suction port of the suction pipe arranged directly under the tool, the recovery rate of the cutting powder floating in the processing chamber is poor. There's a problem.

  This invention is made | formed in view of the said conventional problem, and makes it the subject to provide the cutting powder processing apparatus of the machine tool which can raise the collection | recovery rate of the cutting powder etc. which float in a processing chamber.

  The invention of claim 1 includes a processing chamber configured in a substantially sealed shape, a main shaft disposed so that at least a part of the processing chamber is positioned in the processing chamber, and a tool attached to a tip portion of the main shaft. A cutting powder processing apparatus for a machine tool that generates dust-like cutting powder in the processing chamber, wherein an air nozzle for allowing air to flow into the processing chamber is formed in a ceiling portion, and suction holes are formed in the spindle and the tool. It is formed so as to penetrate in the axial direction, one end opening of the suction hole is positioned in the processing chamber, the other end opening is connected to the suction separation device, and the cutting powder generated in the processing chamber by the suction separation device Together with the air flowing down from the air nozzle through the suction hole, the cutting powder is separated from the sucked air, and the air from which the cutting powder is separated is supplied to the processing chamber to supply the air. Make it flow down from the nozzle It is characterized by a door.

  According to a second aspect of the present invention, in the cutting powder processing device for a machine tool according to the first aspect, the suction separation device sucks the cutting agent supplied to a processing point together with the cutting powder and air, and separates it from the air. It is characterized in that the cutting agent is supplied into the processing chamber.

A third aspect of the present invention is the machine tool cutting powder processing apparatus according to the first aspect,
It is characterized by further comprising a trough that is disposed at the bottom of the processing machine and receives cutting powder and cutting agent that have fallen without being sucked by the suction separation device.

  According to the first aspect of the present invention, since the air is allowed to flow down from the ceiling portion into the processing chamber, dust-like cutting powder and mist-like cutting agent floating in the processing chamber can be allowed to flow down, and the suction separation device Suction can be performed through the suction holes, and the cutting powder recovery rate can be improved.

  In addition, since the air flow is formed by supplying the exhaust gas from the suction separation device to the processing chamber, it is possible to prevent an increase in cost for generating the air flow.

  In the invention of claim 2, since the separated and collected cutting agent is supplied to the processing chamber, the cutting agent can be used as a cleaning liquid for cleaning the wall surface of the processing chamber, for example. Also, it can be recovered by flowing down to the bottom, and combined with the formation of the air flow by the exhaust, semi-closed and energy-saving cutting powder processing can be realized.

  In the invention of claim 3, a trough is arranged at the bottom of the processing chamber, and cutting powder or the like that flows down without being sucked by the suction separation device is received by the trough and discharged to the outside. The recovery rate of powder and the like can be increased.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a diagram for explaining a machine tool processing device for a machine tool according to an embodiment of the present invention.

  In the figure, reference numeral 1 denotes a machine tool provided with a cutting powder processing apparatus 2 according to the present embodiment. The machine tool 1 includes a processing machine 3 and a cover 4 surrounding the processing machine 3. The processing machine 3 includes a frame member 5, a spindle head 6 supported by the frame member 5, a spindle 7 that is rotatably supported by the spindle head 6, and a tool that is supported at the tip of the spindle 7. 8 and a machining chamber 10 that surrounds the tool 8 and the machining table 9 in a substantially hermetically sealed manner. The front end portion of the main shaft 7 is located in the processing chamber 10.

  In the processing chamber 10, when the workpiece W on the processing table 9 is machined by the cutting tool 8 a fixed to the tool 8, the dust-like cutting powder W <b> 1 and the cutting agent W <b> 2 are scattered. Some of these cutting powders fall due to their own weight, but dust-like cutting powder or mist-like cutting agent floats in the processing chamber 10.

  In the present embodiment, the main shaft 7 and the tool 8 are formed with suction holes 17 penetrating them in the axial direction. One end opening 17 a of the suction hole 17 is located in the processing chamber 10, and a dust collector (suction separation device) 13 is connected to the other end opening 17 b through a suction passage 14.

  A number of air nozzles 10d are formed in the air header 10c disposed in the ceiling portion 10a of the processing chamber 10. An air flow 11 flowing down from the air nozzle 10d is formed in the processing chamber 10. The air flow 11 also causes the floating dusty cutting powder and mist cutting agent to flow down. At least a part of these cutting powder and cutting agent is sucked by the dust collector 13 through the suction holes 17 formed in the tool 8 and the main shaft 7 together with the air.

  The bottom 10b is provided with a trough 12 that receives the cutting powder and the cutting agent that have flowed down without being sucked by the dust collector 13. The trough 12 includes a hopper portion 12a connected to the bottom portion 10b, and a storage portion 12b for storing cutting powder or the like induced by the hopper portion 12a.

  The dust collector 13 includes a casing 13a and a blower 13b that exhausts the inside of the casing 13a to make the inside of the casing 13a have a negative pressure. In the casing 13a, a cutting powder filter 13c that separates the cutting powder W1 from the air and a cutting agent receiver 13d that collects the cutting agent W2 separated from the air are disposed. The cutting powder W1 captured by the cutting powder filter 13c is stored in the cutting powder bucket 13e.

  The discharge port of the blower 13 b is connected to the air header 10 c of the processing chamber 10 through the exhaust duct 15. An air volume adjusting valve 15 a is interposed in the middle of the exhaust duct 15.

  Further, the cutting agent receiver 13 d is connected to the processing chamber 10 by a cutting agent supply pipe 16. A pump 16a is interposed in the middle of the cutting agent supply pipe 16, and a pressurized cutting agent is sprayed on the wall surface of the processing chamber 10 to wash away the cutting powder adhering to the wall surface. Reference numerals 16b and 16c denote on-off valves, and a portion between the on-off valves 16b and 16c of the cutting agent supply pipe 16 and an upstream side portion of the air volume adjusting valve 15 of the exhaust duct 15 are communicated with each other by a branch pipe 16d. .

  The relatively large cutting powder and cutting agent that have fallen on the trough 12 are stored in the trough 12 and discharged to the outside by a chip conveyor or the like.

  The cutting powder W1 sucked into the casing 13a together with the air is separated and captured by the cutting powder filter 13c. The cutting powder W1 captured by the cutting powder filter 13c is collected in the cutting powder bucket 13e.

  The exhaust from the casing 13 a by the blower 13 b is supplied to the air header 10 c of the ceiling portion 10 a of the processing chamber 10 to form the air flow 11.

  Further, the cutting agent collected in the cutting agent receiver 13d is pressurized by the pump 16a and sprayed as a cleaning liquid toward the wall surface of the processing chamber 10, whereby the cutting powder or the like adhering to the wall surface is washed away, The trough 12 flows down.

  As described above, in the apparatus according to the present embodiment, the air flow 11 flowing from the ceiling portion 10a toward the bottom portion 10b is formed in the processing chamber 10, so that dust-like cutting powder or mist-like powder floating in the processing chamber 10 is formed. The cutting agent can also be actively sucked and collected by the suction hole 17 of the main shaft 7, and the cutting powder and the like that has fallen without being sucked falls into the trough 12 of the bottom 10b and is discharged to the outside by a chip conveyor or the like.

  Moreover, since the said air flow 11 was formed using the exhaust_gas | exhaustion of the dust collector 13, the cost increase for forming an air flow can be avoided. Further, since the cutting agent recovered by the dust collector 13 is supplied into the processing chamber 10 as a wall cleaner, the semi-closed and energy-saving cutting powder is combined with the formation of the air flow by the exhaust. Processing can be realized.

It is a schematic block diagram which shows the cutting powder processing apparatus of the machine tool which concerns on one Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Machine tool 2 Cutting powder processing apparatus 10 Processing chamber 10a Ceiling part 10b Bottom part 10d Air nozzle 11 Air flow 12 Trough 13 Dust collector (suction separator)

Claims (3)

A machining chamber configured in a substantially hermetically sealed manner, a spindle disposed so that at least a part thereof is positioned in the machining chamber, and a tool attached to a tip portion of the spindle, Machine tool cutting powder processing apparatus for generating a shaped cutting powder,
Forming an air nozzle in the ceiling for allowing air to flow into the processing chamber;
The suction hole is formed in the main shaft and the tool so as to penetrate in the axial direction, one end opening of the suction hole is positioned in the processing chamber, and the other end opening is connected to the suction separation device,
The suction separation device sucks the cutting powder generated in the processing chamber together with the air flowing down from the air nozzle through the suction hole and separates the cutting powder from the sucked air. A cutting powder processing apparatus for a machine tool, wherein the separated air is supplied to the processing chamber and flows down from the air nozzle. In the machine tool cutting powder processing apparatus according to claim 1,
In the processing chamber, the suction separation device sucks the cutting agent supplied to the processing point together with the cutting powder and air, and supplies the cutting agent separated from the air into the processing chamber. Powder processing equipment. In the machine tool cutting powder processing apparatus according to claim 1,
A cutting powder processing apparatus for a machine tool, further comprising a trough disposed at the bottom of the processing machine and receiving cutting powder and cutting agent that have fallen without being sucked by the suction separation device.

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