Compound grinding machine

JP7871816B2Active Publication Date: 2026-06-09JTEKT CORP

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
JTEKT CORP
Filing Date
2021-09-06
Publication Date
2026-06-09

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Abstract

In a process in which grinding is performed after additive manufacturing, the present invention reduces the amount of a portion of a coating, formed during the additive manufacturing, that exceeds a thickness necessary for a product. This complex grinding machine comprises: a holding unit capable of holding and rotating a workpiece; an additive manufacturing unit that is movable with respect to the holding unit, melts a material while supplying the material to a surface of the workpiece held by the holding unit, and thereby adheres the material to the surface; a grinding unit that is movable with respect to the holding unit, has a grindstone, and rotates the grindstone; and a coolant supply unit that supplies a coolant to a location at which the workpiece held by the holding unit contacts the grindstone.
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Claims

1. It is a compound grinding machine, A holding part that can hold and rotate a workpiece, An additive manufacturing unit that is movable relative to the holding unit, wherein the additive manufacturing unit supplies material to the surface of the workpiece held by the holding unit and melts the material to adhere the material to the surface, A grinding unit that can move relative to the holding unit, comprising a grinding wheel and a grinding wheel that rotates the grinding wheel, The system includes a coolant supply unit that supplies coolant to the portion where the workpiece held in the holding unit and the grinding wheel come into contact, The additive manufacturing unit includes optical instruments used for adhering the material to the surface, The aforementioned composite grinding machine is The optical instrument is further provided with a protective part to prevent the coolant from adhering to it. The aforementioned protective part is A cover comprising an opening and a lid portion that can open and close the opening, which covers the optical instrument, The lid is in an open position where it opens the opening, and when the additive manufacturing unit adheres the material to the surface, the optical device takes in or emits light through the opening. A composite grinding machine in which the lid can be selectively positioned in a closed position that closes the opening, and in a closed position that closes the opening.

2. It is a compound grinding machine, A holding part that can hold and rotate a workpiece, An additive manufacturing unit that is movable relative to the holding unit, wherein the additive manufacturing unit supplies material to the surface of the workpiece held by the holding unit and melts the material to adhere the material to the surface, A grinding unit that can move relative to the holding unit, comprising a grinding wheel and a grinding wheel that rotates the grinding wheel, The system includes a coolant supply unit that supplies coolant to the portion where the workpiece held in the holding unit and the grinding wheel come into contact, The additive manufacturing unit includes optical instruments used for adhering the material to the surface, The aforementioned composite grinding machine is The optical instrument is further provided with a protective part to prevent the coolant from adhering to it. The aforementioned protective part is A first equipment arrangement in which the optical equipment is positioned when the additive manufacturing unit adheres the material to the surface, A composite grinding machine in which the optical instrument can be selectively arranged in a second equipment arrangement in which the optical instrument is arranged when the workpiece held by the holding part is being ground by the grinding wheel, wherein the optical instrument is arranged on the side of the component of the composite grinding machine that is not the optical instrument, opposite to the part in which the workpiece and the grinding wheel come into contact.

3. It is a compound grinding machine, A holding part that can hold and rotate a workpiece, An additive manufacturing unit that is movable relative to the holding unit, wherein the additive manufacturing unit supplies material to the surface of the workpiece held by the holding unit and melts the material to adhere the material to the surface, A grinding unit that can move relative to the holding unit, comprising a grinding wheel and a grinding wheel that rotates the grinding wheel, The system includes a coolant supply unit that supplies coolant to the portion where the workpiece held in the holding unit and the grinding wheel come into contact, The additive manufacturing unit includes optical instruments used for adhering the material to the surface, The aforementioned composite grinding machine is The optical instrument is further provided with a protective part to prevent the coolant from adhering to it. The protective part is an air curtain capable of creating an airflow between the part where the workpiece and the grinding wheel come into contact and the optical instrument, in a composite grinding machine.

4. It is a compound grinding machine, A holding part that can hold and rotate a workpiece, An additive manufacturing unit that is movable relative to the holding unit, wherein the additive manufacturing unit supplies material to the surface of the workpiece held by the holding unit and melts the material to adhere the material to the surface, A grinding unit that can move relative to the holding unit, comprising a grinding wheel and a grinding wheel that rotates the grinding wheel, The system includes a coolant supply unit that supplies coolant to the portion where the workpiece held in the holding unit and the grinding wheel come into contact, The additive manufacturing unit includes optical instruments used for adhering the material to the surface, The aforementioned composite grinding machine is The optical instrument is further provided with a protective part to prevent the coolant from adhering to it. The protective part is provided on the surface of the optical instrument and has a structure that repels the coolant, in a composite grinding machine.

5. It is a compound grinding machine, A holding part that can hold and rotate a workpiece, An additive manufacturing unit that is movable relative to the holding unit, wherein the additive manufacturing unit supplies material to the surface of the workpiece held by the holding unit and melts the material to adhere the material to the surface, A grinding unit that can move relative to the holding unit, comprising a grinding wheel and a grinding wheel that rotates the grinding wheel, The system includes a coolant supply unit that supplies coolant to the portion where the workpiece held in the holding unit and the grinding wheel come into contact, The additive manufacturing unit includes optical instruments used for adhering the material to the surface, The aforementioned composite grinding machine is The optical instrument is further provided with a protective part to prevent the coolant from adhering to it. The additive manufacturing unit includes, as the optical instrument, a beam irradiation unit that irradiates a light beam that melts the material, The composite grinding machine comprises a control unit for controlling the composite grinding machine, which, prior to the adhesion of the material to the surface, controls the beam irradiation unit to irradiate the coolant adhering to the workpiece with the light beam, thereby evaporating at least a portion of the coolant adhering to the workpiece.

6. It is a compound grinding machine, A holding part that can hold and rotate a workpiece, An additive manufacturing unit that is movable relative to the holding unit, wherein the additive manufacturing unit supplies material to the surface of the workpiece held by the holding unit and melts the material to adhere the material to the surface, A grinding unit that can move relative to the holding unit, comprising a grinding wheel and a grinding wheel that rotates the grinding wheel, The system includes a coolant supply unit that supplies coolant to the portion where the workpiece held in the holding unit and the grinding wheel come into contact, The additive manufacturing unit includes optical instruments used for adhering the material to the surface, The aforementioned composite grinding machine is The optical instrument is further provided with a protective part to prevent the coolant from adhering to it. The additive manufacturing unit includes, as the optical instrument, a beam irradiation unit that irradiates a light beam that melts the material, The aforementioned composite grinding machine is A detection unit capable of detecting the coolant adhering to the surface, A composite grinding machine comprising: a control unit that controls the output of the light beam when the material adheres to the surface based on the detection result from the detection unit.

7. A composite grinding machine according to claim 1, The aforementioned protective section further, A composite grinding machine equipped with a pressurizing section capable of increasing the pressure in the space within the cover that houses the optical instrument.