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US-12617005-B2 - Processing machine

US12617005B2US 12617005 B2US12617005 B2US 12617005B2US-12617005-B2

Abstract

A processing machine includes: a first cover body that compartmentally forms a machining area; a mist collector that is for collecting mist from machining area; a fume collector that is for collecting fumes from machining area; a first pipe that is connected to first cover body, and communicates with machining area; a second pipe and a third pipe that branch off from first pipe, and are respectively connected to mist collector and fume collector; and a first switching valve that is operable between a first switching mode in which first pipe and second pipe communicate with each other, and first pipe and third pipe are shut off from each other, and a second switching mode in which first pipe and second pipe are shut off from each other, and first pipe and third pipe communicate with each other.

Inventors

  • Shigeyuki Takashima
  • Takeshi Otawa

Assignees

  • DMG MORI CO., LTD.

Dates

Publication Date
20260505
Application Date
20210604

Claims (5)

  1. 1 . A processing machine, comprising: a first cover body that compartmentally forms a machining area; a mist collector that is for collecting mist from the machining area; a fume collector that is for collecting fumes from the machining area; a first pipe that is connected to the first cover body, and communicates with the machining area; a second pipe and a third pipe that branch off from the first pipe, and are respectively connected to the mist collector and the fume collector; and a first switching valve that is operable between a first switching mode in which the first pipe and the second pipe communicate with each other, and the first pipe and the third pipe are shut off from each other, and a second switching mode in which the first pipe and the second pipe are shut off from each other, and the first pipe and the third pipe communicate with each other.
  2. 2 . The processing machine according to claim 1 , wherein the first switching valve is provided at a branch position between the first pipe, and the second pipe and the third pipe.
  3. 3 . The processing machine according to claim 1 , further comprising a control device that controls operation of the first switching valve so that the first switching mode is selected in subtractive manufacturing for a workpiece, and the second switching mode is selected in additive manufacturing for a workpiece.
  4. 4 . The processing machine according to claim 1 , further comprising: a powder feeder that is for supplying powder toward an inside of the machining area; a second cover body that compartmentally forms a space that stores the powder feeder; a fourth pipe that branches off from a pipe path of the third pipe, is connected to the second cover body, and communicates with the space; and a second switching valve that is operable between a third switching mode in which the third pipe and the fourth pipe are shut off from each other, and a fourth switching mode in which the third pipe and the fourth pipe communicate with each other.
  5. 5 . The processing machine according to claim 4 , further comprising a control device that controls operation of the second switching valve so that while the powder feeder is not being replenished with powder, the third switching mode is selected, and while the powder feeder is being replenished with powder, the fourth switching mode is selected.

Description

TECHNICAL FIELD The present invention relates to a processing machine. BACKGROUND ART For example, Japanese Patent Laying-Open No. 2017-1078 (PTL 1) discloses a processing machine that includes: a tool spindle that holds a tool for subtractive manufacturing for a workpiece; and an additive manufacturing head that is detachably attached to the tool spindle, and discharges material powder and emits laser light during additive manufacturing for a workpiece. CITATION LIST Patent Literature PTL 1: Japanese Patent Laying-Open No. 2017-1078 SUMMARY OF INVENTION Technical Problem When subtractive manufacturing (SM) for a workpiece is performed using coolant, the coolant heated by processing heat becomes mist (atomized). Possible exhaust of such mist to the outside of the machine becomes a cause of contamination in a factory. Accordingly, a mist collector for collecting mist caused in a machining area is used. In additive manufacturing (AM) for a workpiece, or workpiece processing using laser light, such as a laser process, fumes that are dust caused by heating metal occur in the machining area. The fumes also become a cause of contaminating the inside of the factory. Accordingly, a fume collector for collecting the fumes is used. However, if a hybrid-type processing machine that can perform the subtractive manufacturing processing for a workpiece, and the additive manufacturing processing or the laser processing for a workpiece is provided with both the mist collector and the fume collector, there is a possibility that mist is collected by the fume collector and fumes are collected by the mist collector. Accordingly, there is anxiety that the intrinsic performances of the fume collector and the mist collector are impaired. On the other hand, as measures for solving such anxiety, a configuration is conceivable in which a mist collecting port and a fume collecting port for the machining area are provided in a manner separated from each other. However, in this case, the mist collecting port and the fume collecting port are separately open at the machining area. Accordingly, there is a possibility that a limitation on the space occurs at a cover body that compartmentally forms the machining area. Accordingly, the object of the present invention is to solve the problem described above, and to provide a processing machine in which no limitation on the space occurs at the cover body compartmentally forming the machining area, and which can appropriately collect mist and fumes respectively by the mist collector and the fume collector. Solution to Problem A processing machine according to the present invention includes: a first cover body that compartmentally forms a machining area; a mist collector that is for collecting mist from the machining area; a fume collector that is for collecting fumes from the machining area; a first pipe that is connected to the first cover body, and communicates with the machining area; a second pipe and a third pipe that branch off from the first pipe, and are respectively connected to the mist collector and the fume collector; and a first switching valve that is operable between a first switching mode in which the first pipe and the second pipe communicate with each other, and the first pipe and the third pipe are shut off from each other, and a second switching mode in which the first pipe and the second pipe are shut off from each other, and the first pipe and the third pipe communicate with each other. According to the processing machine having such a configuration, the first pipe communicating with the mist collector and the fume collector respectively through the second pipe and the third pipe is connected to the first cover body. Consequently, in comparison with a case in which the second pipe and the third pipe are connected to the first cover body, the first pipe can be connected to the first cover body in a more compact range. By operating the first switching valve in the first switching mode, mist caused in the machining area is collected by the mist collector through the first pipe and the second pipe, while the mist is prevented from flowing toward the fume collector through the first pipe and the third pipe. By operating the first switching valve in the second switching mode, fumes caused in the machining area are collected by the fume collector through the first pipe and the third pipe, while the fumes are prevented from flowing toward the mist collector through the first pipe and the second pipe. Consequently, the processing machine in which no limitation on the space occurs at the first cover body compartmentally forming the machining area, and which can appropriately collect mist and fumes respectively by the mist collector and the fume collector can be achieved. Preferably, the first switching valve is provided at a branch position between the first pipe, and the second pipe and the third pipe. According to the processing machine having such a configuration, the first switc