Roller burnishing tool device

Patent metadata

Field	Value
Publication number	US-9827648-B2
Application number	US-201514746967-A
Country	US
Kind code	B2
Filing date	Jun 23, 2015
Priority date	Jun 24, 2014
Publication date	Nov 28, 2017
Grant date	Nov 28, 2017

Abstract

Provided is a roller burnishing tool device including a shank; a housing connected to the shank, a connected position of the housing relative to the shank being adjustable; a roller support member supported to be capable of rotating relative to the housing and attached to follow a movement of the housing in a case of adjusting the connected position; tapered rollers supported by the roller support member; a mandrel having a tapered portion matched with the tapered rollers and movable relative to the roller support member; and a tool diameter following mechanism connecting the shank and the mandrel, having a lead groove formed spirally in a front portion of the shank, a pin member capable of moving along the lead groove, a pin member insertion hole formed in the mandrel to insert the pin member therein, and a biasing unit biasing the mandrel forward.

First claim

What is claimed is:

1. A roller burnishing tool device comprising:
a shank configured to be attached to a processing machine;
a housing connected to the shank in a manner so as to be rotatable together with the shank, a connected position of the housing relative to the shank being adjustable in a front-rear direction;
a roller support member having an annular shape in a cross section thereof, the roller support member supported on the housing so as to be capable of rotating relative to the housing, and disposed so as to follow a movement of the housing in a case where the connected position of the housing relative to the shank is adjusted to be changed in the front-rear direction;
a plurality of rollers having tapered shapes and supported by the roller support member;
a mandrel having a tapered portion matched with the tapered shapes of the plurality of rollers and coaxially inserted in the roller support member; and
a tool diameter following mechanism connecting the shank and the mandrel, the tool diameter following mechanism including:
a hollow cylindrical portion formed at a front portion of the shank,
a lead groove formed spirally in the hollow cylindrical portion, the lead groove being configured to pass through the hollow cylindrical portion,
a pin member insertion hole formed in the mandrel,
a pin member inserted in both the pin member insertion hole and the lead groove so as to be capable of moving spirally along the lead groove, and
a biasing unit attached to the shank and biasing the mandrel forward.

2. The roller burnishing tool device according to claim 1 , further comprising a biasing force adjusting tool to adjust biasing force of the biasing unit.

3. The roller burnishing tool device according to claim 2 , wherein the biasing force adjusting tool comprises a screw.

Assignees

• Sugino Mach

Inventors

• Miyauchi Shinya
• Futamura Masaru

Classifications

• B24B5/48 Primary

  for grinding walls of very fine holes, e.g. in drawing-dies · CPC title

• Y10T29/471

  of water laid fibrous article [e.g., paper] · CPC title

• B24B39/023

  the working tool being composed of a plurality of working rolls or balls · CPC title

• B24B39/00 Primary

  Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone (modifying the physical properties or structure of metal by burnishing C21D7/08, C22F1/00); Accessories therefor · CPC title

• B24B41/007

  Weight compensation; Temperature compensation; Vibration damping · CPC title