Gear chamfering device and gear processing machine equipped with said gear chamfering device

Patent metadata

Field	Value
Publication number	US-10500658-B2
Application number	US-201615556470-A
Country	US
Kind code	B2
Filing date	Mar 11, 2016
Priority date	Mar 13, 2015
Publication date	Dec 10, 2019
Grant date	Dec 10, 2019

Abstract

The present invention is provided with: gear chamfering tools that perform cutting for chamfering a tooth profile ridge section of a gear to be cut; tool holding parts for holding the gear chamfering tools at one end portion thereof; substantially linear movement means which cause substantially linear movement of the other end portion opposed to the one end portion for holding the gear chamfering tools in the tool holding parts; and circular movement means for causing circular movement of an intermediate portion between the one end portion for holding the gear chamfering tools and the other end portion subjected to the substantially linear movement by the substantially linear movement means in the tool holding parts. By combining the substantially linear movement means and the circular movement means, substantially elliptical movement of tip end parts of the gear chamfering tools is achieved.

First claim

The invention claimed is:

1. A gear chamfering device comprising:
a gear chamfering tool which chamfers a tooth profile ridge section of a gear to be cut by cutting;
a tool holding part which holds the gear chamfering tool in one end portion thereof;
a main body part which includes the tool holding part;
substantially linear movement means which includes a restricting part in which one end portion thereof is rotatably supported on the main body part and other end portion thereof is rotatably coupled to other end portion of the tool holding part, the other end portion of the tool holding part being opposite to the one end portion which holds the gear chamfering tool, thereby causing the other end portion of the tool holding part to make a reciprocating movement drawing substantially linear trajectory about the one end portion of the restricting part; and
circular movement means for causing an intermediate portion of the tool holding part to make a circular movement, the intermediate portion provided between the one end portion which holds the gear chamfering tool and the other end portion which is caused to make the reciprocating movement by the substantially linear movement means, wherein
a tip end part of the gear chamfering tool is caused to make a substantially elliptical movement so as to pass an entrance position where at least part of the gear chamfering tool enters a portion between tooth surfaces of the gear to be cut and an exit position where the gear chamfering tool exits from the portion between the tooth surfaces of the gear to be cut, by combining the substantially linear movement means and the circular movement means, and
the gear to be cut is rotated while the tip end part of the chamfering tool is located between the exit position and the entrance position.

2. The gear chamfering device according to claim 1 , wherein a pair of the gear chamfering tools, a pair of the tool holding parts, a pair of the circular movements means, and a pair of the substantially linear movement means are provided to face the gear to be cut.

3. The gear chamfering device according to claim 1 , wherein
the circular movement means includes a drive part, a gear part which is coupled to the drive part, a first shaft portion which is coupled to the gear part and which is rotated by drive of the drive part, and a second shaft portion which is continuous to the first shaft portion and which is caused to make a circular movement by rotation of the first shaft portion,
and
the tool holding part is coupled at the intermediate portion to the second shaft portion.

4. The gear chamfering device according to claim 1 , wherein in the tool holding part, a holding position of the gear chamfering tool is adjustable in a pitch direction of the gear to be cut.

5. A gear processing machine comprising:
a gear processing tool for performing predetermined gear processing on a gear to be cut;
moving means for moving the gear processing tool in three different axial directions;
a conveying device which conveys the gear to be cut between a loading-unloading position where the gear to be cut is loaded or unloaded and a gear processing position where the gear processing tool performs the gear processing on the gear to be cut; and
the gear chamfering device according to claim 1 , wherein
the conveying device conveys the gear to be cut to a gear chamfering position where the gear chamfering device performs the gear chamfering on the gear to be cut between the loading-unloading position and the gear processing position.

6. The gear chamfering device according to claim 2 , wherein
the circular movement means includes a drive part, a gear part which is coupled to the drive part, a first shaft portion which is coupled to the gear part and which is rotated by drive of the drive part, and a second shaft portion which is continuous to the first shaft portion and which is caused to make a circular movement by rotation of the first shaft portion,
and
the tool holding part is coupled at the intermediate portion to the second shaft portion.

7. The gear chamfering device according to claim 2 , wherein in the tool holding part, a holding position of the gear chamfering tool is adjustable in a pitch direction of the gear to be cut.

8. The gear chamfering device according to claim 3 , wherein in the tool holding part, a holding position of the gear chamfering tool is adjustable in a pitch direction of the gear to be cut.

9. A gear processing machine comprising:
a gear processing tool for performing predetermined gear processing on a gear to be cut;
moving means for moving the gear processing tool in three different axial directions;
a conveying device which conveys the gear to be cut between a loading-unloading position where the gear to be cut is loaded or unloaded and a gear processing position where the gear processing tool performs the gear processing on the gear to be cut; and
the gear chamfering device according to claim 2 , wherein
the conveying device conveys the gear to be cut to a gear chamfering position where the gear chamfering device performs the gear chamfering on the gear to be cut between the loading-unloading position and the gear processing position.

10. A gear processing machine comprising:
a gear processing tool for performing predetermined gear processing on a gear to be cut;
moving means for moving the gear processing tool in three different axial directions;
a conveying device which conveys the gear to be cut between a loading-unloading position where the gear to be cut is loaded or unloaded and a gear processing position where the gear processing tool performs the gear processing on the gear to be cut; and
the gear chamfering device according to claim 3 , wherein
the conveying device conveys the gear to be cut to a gear chamfering position where the gear chamfering device performs the gear chamfering on the gear to be cut between the loading-unloading position and the gear processing position.

11. A gear processing machine comprising:
a gear processing tool for performing predetermined gear processing on a gear to be cut;
moving means for moving the gear processing tool in three different axial directions;
a conveying device which conveys the gear to be cut between a loading-unloading position where the gear to be cut is loaded or unloaded and a gear processing position where the gear processing tool performs the gear processing on the gear to be cut; and
the gear chamfering device according to claim 4 , wherein
the conveying device conveys the gear to be cut to a gear chamfering position where the gear chamfering device performs the gear chamfering on the gear to be cut between the loading-unloading position and the gear processing position.

Assignees

• Mitsubishi Heavy Ind Machine Tool Co Ltd

Inventors

• Masuo Koichi

Classifications

• B23Q7/02

  by means of drums or rotating tables or discs · CPC title

• B23F19/10 Primary

  Chamfering the end edges of gear teeth · CPC title

• Y10T409/101113

  Gear chamfering or deburring · CPC title

• Y10T409/100954

  Utilizing transfer arm · CPC title

• B23F23/04

  Loading {or unloading} arrangements · CPC title