TRANSMISSION STRUCTURE OF INDEXING DISC

Title:

TRANSMISSION STRUCTURE OF INDEXING DISC

Document Type and Number:

Japanese Patent JP2018109438

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide a transmission structure for an indexing disc capable of improving processing accuracy by preventing backlash between a screw shaft and a main shaft by making a first screw portion and a second screw portion simultaneously engage with faces opposed to each other, of a bearing.SOLUTION: A transmission device for an indexing disc includes a screw shaft connected to a power source, and having a first screw portion and a second screw portion in its axial direction in a manner that a spiral line of the first screw portion is deviated from a spiral line of the second screw portion, and a main shaft connected to an indexing rotary disc, and provided with a plurality of bearings at intervals in a manner that each bearing is engaged with the first screw portion and the second screw portion, and an engagement direction of the first screw portion and the bearing is opposite to an engagement direction of the second screw portion and the bearing.SELECTED DRAWING: Figure 2

Inventors:

CHEN KOU-MING

Application Number:

JP2017099737A

Publication Date:

July 12, 2018

Filing Date:

May 19, 2017

Export Citation:

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