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US 2021/0078124 A1Published application
Automatic pallet changer in machine tool
AssigneeOkuma Corporation
InventorMakoto Yoshida
Life of this patent
Estimating the term…
Abstract
Provided is an automated pallet changer in machine tool which enable miniaturization and cost reduction. A drive unit in the automatic pallet changer includes a planetary reduction gear. The planetary reduction gear has a first output shaft and a second output shaft in which, by fixing one of the first and second output shaft, the other functions as an output shaft for driving. The first output shaft is used to pivot the pivoting frame, and the second output shaft is used to move the carry-in/out arm back and forth.
Claims5
An automatic pallet changer in machine tool, comprising:
- a pallet storage section for storing pallets in multiple rows and multiple stages;
- a carry-in/out arm that supports the pallet and moves in back and forth direction for carrying in/out the pallet to/from the pallet storage section;
- a horizontal movement frame that moves horizontally for moving the carry-in/out arm to a front of a predetermined row of the pallet storage section;
- a lifting frame that moves in up and down direction for moving the carry-in/out arm to a front of a predetermined stage of the pallet storage section;
- and
- a drive unit for driving the carry-in/out arm, the horizontal movement frame, and the lifting frame,
- wherein the drive unit includes a planetary reduction gear having a first output shaft and a second output shaft in which, by fixing one of the first and second output shafts, the other functions as the output shaft for driving, each of the first and second output shafts has axis in up and down direction, and one of the first and second output shafts is used to move the horizontal movement frame horizontally and the other is used to move the carry-in/out arm in back and forth direction.
4 more elements
Dependencies are inferred from the claim text.