Polishing device for welding tip

Patent metadata

Field	Value
Publication number	US-11565364-B2
Application number	US-201916550359-A
Country	US
Kind code	B2
Filing date	Aug 26, 2019
Priority date	Sep 21, 2018
Publication date	Jan 31, 2023
Grant date	Jan 31, 2023

Abstract

A polishing device for a welding tip includes a cylindrical holder; and a polishing unit. The polishing unit includes a blade configured to polish a welding tip. The blade polishes the welding tip due to rotation of the polishing unit. The holder includes a groove extending along an entire inner circumference of the holder. The groove includes axial groove portions each of which extends along an axis of the holder, and inclined groove portions each of which extends for a specified first distance and is inclined in one direction with respect to the axial groove portions. The axial groove portions and the inclined groove portions are alternately arranged. The polishing unit includes projected portions each of which extends to an inside of the groove, and the number of the projected portions is two or more and is equal to or less than the number of the axial groove portions.

First claim

What is claimed is:

1. A polishing device for a welding tip, comprising:
a holder having a cylindrical shape; and
a polishing unit that is held in an inside of the holder so as to be rotatable about an axis of the holder, wherein
the polishing unit includes a blade configured to polish a welding tip,
the blade polishes the welding tip due to rotation of the polishing unit,
the holder includes an upper portion and a lower portion that are spaced apart to form a groove therebetween that extends along an entire inner circumference of the holder,
the groove includes axial groove portions each of which extends along the axis of the holder, and inclined groove portions each of which extends for a specified first distance and is inclined in one direction with respect to the axial groove portions,
the axial groove portions and the inclined groove portions are alternately arranged, and
the polishing unit includes projected portions each of which extends to an inside of the groove, and the number of the projected portions is two or more and is equal to or less than the number of the axial groove portions.

2. The polishing device according to claim 1 , wherein:
the polishing unit includes a file;
a specified second distance is provided between a center of the file and a center axis of the polishing unit; and
when the welding tip contacts the polishing unit, the blade and the file contact a distal end of the welding tip.

3. The polishing device according to claim 2 , wherein when the welding tip contacts the polishing unit, the welding tip is held between the blade and the file.

Assignees

• Toyota Motor Co Ltd

Inventors

• Iwano Yoshihiro
• Kanakubo Ryo
• Sanda Shougo

Classifications

• B24B19/16 Primary

  for grinding sharp-pointed workpieces, e.g. needles, pens, fish hooks, tweezers or record player styli (grinding bevels on diamonds or sapphires B24B9/16; polishing of needles B24B29/08) · CPC title

• B23K11/3063 Primary

  Electrode maintenance, e.g. cleaning, grinding · CPC title

• B23P23/04 Primary

  for both machining and other metal-working operations · CPC title

• B23B5/166

  Devices for working electrodes · CPC title

• B23Q3/062

  adapted for holding workpieces having a special form or being made from a special material · CPC title