Cutting apparatus
First Claim
1. A cutting apparatus comprising:
- a holding table having a rectangular holding surface holding a rectangular plate-shaped workpiece;
a rotating unit rotating the holding table with a center of the holding table as an axis;
a cutting unit having a cutting blade mounted to a rotatable spindle and cutting the plate-shaped workpiece held on the holding table;
a sensor unit in which a light projection section projecting detection light and a light reception section receiving the detection light are disposed to face each other, the sensor unit detecting a tip of the cutting blade entering between the light projection section and the light reception section;
a Z moving unit causing the cutting unit to move in a Z direction which is a direction perpendicular to the rectangular holding surface;
a Y moving unit causing the cutting unit to move in a Y direction which is an axial direction of the spindle and orthogonal to the Z direction; and
an X moving unit causing the holding table to move in an X direction which is a cutting direction of the cutting blade and orthogonal to the Z direction and the Y direction,wherein the rectangular holding surface has short sides and long sides, andthe sensor unit has an upper end disposed to be lower than a lower end of the holding table in the Z direction and is located below an axis of the spindle of the cutting unit in the Z direction, and when the short sides of the rectangular holding surface are set parallel to the Y direction, an upper side of the sensor unit is open to allow the cutting blade to enter between the light projection section and the light reception section.
1 Assignment
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Accused Products
Abstract
A cutting apparatus includes a rotatable holding table having a rectangular holding surface, a cutting unit having a cutting blade mounted to a rotatable spindle, and a sensor unit detecting a tip of the cutting blade entering between a light projection section and a light reception section. The sensor unit has an upper end located to be lower than a lower end of the holding table in a Z direction and is located below the axis of the spindle or an extension region of the axis, and when short sides of the rectangular holding surface are set parallel to a Y direction, an upper side of the sensor unit is opened to allow the cutting blade to enter between the light projection section and the light reception section.
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Citations
4 Claims
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1. A cutting apparatus comprising:
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a holding table having a rectangular holding surface holding a rectangular plate-shaped workpiece; a rotating unit rotating the holding table with a center of the holding table as an axis; a cutting unit having a cutting blade mounted to a rotatable spindle and cutting the plate-shaped workpiece held on the holding table; a sensor unit in which a light projection section projecting detection light and a light reception section receiving the detection light are disposed to face each other, the sensor unit detecting a tip of the cutting blade entering between the light projection section and the light reception section; a Z moving unit causing the cutting unit to move in a Z direction which is a direction perpendicular to the rectangular holding surface; a Y moving unit causing the cutting unit to move in a Y direction which is an axial direction of the spindle and orthogonal to the Z direction; and an X moving unit causing the holding table to move in an X direction which is a cutting direction of the cutting blade and orthogonal to the Z direction and the Y direction, wherein the rectangular holding surface has short sides and long sides, and the sensor unit has an upper end disposed to be lower than a lower end of the holding table in the Z direction and is located below an axis of the spindle of the cutting unit in the Z direction, and when the short sides of the rectangular holding surface are set parallel to the Y direction, an upper side of the sensor unit is open to allow the cutting blade to enter between the light projection section and the light reception section. - View Dependent Claims (2, 3, 4)
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Specification