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Method and device for grinding metal annular member

A technology for grinding and ring-shaped components, applied in metal processing equipment, machine tools designed for grinding the rotating surface of workpieces, manufacturing tools, etc. unnecessarily growing effect

Active Publication Date: 2014-08-27
NSK LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the case of using the methods described in these documents, if the grinding process is uneven due to changes in the sharpness of the grinding tool, the learning may not be complete.

Method used

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  • Method and device for grinding metal annular member
  • Method and device for grinding metal annular member
  • Method and device for grinding metal annular member

Examples

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Embodiment Construction

[0032] Figure 1 to Figure 6 One example of the embodiment of the present invention is shown. In addition, the present example is characterized in that the start (switching from finishing grinding to sparkless grinding) and the timing of the end of sparkless grinding in the grinding process are appropriately determined, without being limited to the Changes in the amount of elastic deformation of the workpiece 1, such as changes in the sharpness of the workpiece 1, suppress unevenness in the outer diameter D of the workpiece (workpiece) 1 in the state when the machining is completed, and prevent time-consuming grinding. grow unnecessarily. The structure of the grinding processing device of this example is basically the same as that of conventional devices, including: a rotating drive shaft (not shown), which supports and fixes the workpiece and rotates the workpiece; a back plate 2, which is fixed on The top end of the rotating drive shaft magnetically attracts the ring-shape...

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Abstract

Provided is a grinding method capable of preventing variations in the outer diameter of a workpiece (1) at the completion of grinding regardless of variations in the amount of elastic deformation of the workpiece (1) based on changes in a whetstone (4) sharpening ability and the like. The outer diameter (D) of the workpiece (1) during grinding is measured, in process, by a gauge head (5). A plurality of mutually different target values Di are specified in relation to the outer diameter (D) of the workpiece (1), and a first threshold pertaining to the rate of change of the outer diameter (D) of the workpiece (1) is specified for each of the target values Di. A spark-out starts when the absolute value of the rate of change v, when the outer diameter (D) of the workpiece (1) reaches a target value Di, exceeds the first threshold corresponding to the target value Di.

Description

technical field [0001] The present invention relates to a method and an apparatus for grinding the peripheral surface of a metal annular member as a workpiece by using a rotary grinder. Background technique [0002] Grinding is performed on the peripheral surface of metal annular members such as the track surface of the track wheel member constituting the radial roller bearing and the cylindrical fitting surface to improve surface accuracy and surface roughness. Such as figure 1 (A) and figure 1 As shown schematically in (B), this grinding process is performed using a grinding machine. The grinding processing device usually includes: a rotating drive shaft (not shown); End face; at least two brake shoes (Japanese: シュー) 3, which are used to position the workpiece 1 in the radial direction; a rotating grinding tool 4, which grinds the outer or inner peripheral surface of the workpiece 1; at least two A measuring head 5, and the grinding processing device includes: a contac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B49/04B24B5/35
CPCB24B49/04B24B5/35
Inventor 海老名健小泽光治小笠原智基
Owner NSK LTD
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