Boring device
AssigneeDenso Corporation
InventorNoritsugu KATO
Life of this patent
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Abstract
A boring device includes: a rotatable body, which has a workpiece holder, a valve seat receiver and a debris passage portion; a laser emitter; a pump and a control unit. The workpiece holder can hold a nozzle body. The valve seat receiver contacts a valve seat of the nozzle body that is held by the workpiece holder. The laser emitter emits a laser beam to an outer wall of the nozzle body to bore injection holes at the nozzle body. The debris passage portion includes a debris passage that is placed on a radially inner side of the valve seat receiver and guides debris formed at the time of boring the injection holes with the laser beam. The pump vacuums the debris through the debris passage. The control unit controls a laser output power of the laser emitter and a suction force of the pump.
Claims17
A boring device for boring an injection hole in a nozzle body, which has a valve seat formed at an inner wall of the nozzle body, the boring device comprising:
- a workpiece holder that holds the nozzle body at a time of boring the injection hole at the nozzle body;
- a valve seat receiver that contacts the valve seat of the nozzle body, which is held by the workpiece holder;
- a laser emitting device that emits a laser beam to the nozzle body, which is held by the workpiece holder, from a side where an outer wall of the nozzle body is located, to bore the injection hole;
- a debris passage portion that is located on a radially inner side of the valve seat receiver, wherein the debris passage portion includes a debris passage that conducts debris, which is generated at the time of boring the injection hole;
- a suction device that suctions the debris through the debris passage;
- and
- a control device that controls a laser output power of the laser emitting device and a suction force of the suction device.
Dependencies are inferred from the claim text.