Unlock instant, AI-driven research and patent intelligence for your innovation.

Turning method and turning device

A turning and turning tool technology, applied in turning equipment, turning equipment, tools for lathes, etc., can solve problems such as inability to turn processing, and achieve high-precision turning, excellent operability, control and workability. Effect

Inactive Publication Date: 2015-04-29
NTN CORP
View PDF8 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Therefore, in the past, the raceway surface (groove) of the inner ring and the raceway surface (groove) of the outer ring could not be turned at the same time.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Turning method and turning device
  • Turning method and turning device
  • Turning method and turning device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] Embodiments of the present invention will be described below with reference to the drawings.

[0031] Figure 4 A bearing 1 using an inner ring 2 and an outer ring 3 turned by the turning method according to the present invention is shown. A bearing 1 is mainly composed of an inner ring 2 , an outer ring 3 , a plurality of balls 4 as rolling elements, and a cage 5 . raceway surfaces 2a, 2a, the outer ring 3 is arranged on the outer side of the inner ring 2, and a plurality of rows (in this case, two rows) of outer raceway surfaces 3a, 3a are formed on the inner diameter surface, and the plurality of rows are formed as The balls 4 of the rolling elements are interposed between the inner raceway surfaces 2a, 2a of the inner ring 2 and the outer raceway surfaces 3a, 3a of the outer ring 3 in a freely rolling manner, and the cages 5, 5 are disposed on the inner ring 2 between the outer ring 3 and the balls 4 at equal intervals in the circumferential direction.

[0032] I...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Provided are a turning method, which makes possible the processing of a double row of raceway surfaces (grooves) with a highly precise mutual difference in PCD dimension and groove pitch (raceway surface pitch), and a turning device with which such turning is possible. The present invention turns the respective raceway surfaces (2a, 3a) of the inner race (2) and the outer race (3) of a double row bearing (1). The respective raceway surfaces of either the inner race (2) or the outer race (3) are turned simultaneously with a turning tool (10) that has multiple bits (11A, 11B). The orientation of the bits (11A, 11B) of the turning tool (10) is then changed and the other respective raceway surfaces (2a, 3a) are turned simultaneously using said turning tool (10).

Description

technical field [0001] The invention relates to a turning method and a turning device. Background technique [0002] Generally speaking, a bearing is mainly composed of an inner ring, an outer ring, a plurality of balls and a cage. The inner ring is formed with an inner raceway surface on the outer diameter surface, and the outer ring is formed with an outer raceway surface on the inner diameter surface. The plurality of balls are rotatably interposed between the inner raceway surface of the inner ring and the outer raceway surface of the outer ring, and the cage is disposed between the inner ring and the outer ring and holds the balls in a fixed position. equally spaced in the circumferential direction. [0003] The raceway surfaces of the inner and outer rings of these bearings are formed by turning. However, rolling elements in bearings, that is, balls, are sometimes arranged in multiple rows. In the case of having such multiple rows of raceway surfaces, it is necessar...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B23B1/00B23B5/00B23B21/00B23B27/02F16C19/18F16C33/64
CPCB23B1/00B23B29/24B23B2215/12B23B2270/14F16C19/18F16C33/64F16C2220/62
Inventor 西木卓白神博昭
Owner NTN CORP