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grinder

A technology for grinding machines and workpieces, which is applied in the field of grinding machines, can solve problems such as rising manufacturing costs, achieve the effects of suppressing rising manufacturing costs, reducing operating time, and reducing operating man-hours

Active Publication Date: 2016-11-30
NSK LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this grinding machine, a dedicated and complicated mechanism is required just to change the pressing force, and therefore, an increase in the size of the device and an increase in manufacturing cost cannot be avoided.

Method used

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Embodiment Construction

[0033] [1 example of embodiment]

[0034] Figure 1 to Figure 8One example of the embodiment of the present invention is shown. The grinding machine 1a of this example is the same as the conventional grinding machine 1. It is a 2-roller 1-die type grinder, which includes an upper roll 12, a lower roll 14, and a die base 4a, and is used for a workpiece whose outer peripheral surface has a circular cross-sectional shape. The peripheral surface (outer peripheral surface or inner peripheral surface) or end surface (axial end surface) of W is ground. Among these, the upper roller 12 and the lower roller 14 rotate in the same direction mutually while supporting the workpiece|work W from both upper and lower sides, and rotate the workpiece|work W. As shown in FIG. On the other hand, the die base 4a is positioned between the upper roll 12 and the lower roll 14 in the vertical direction, and its front end surface contacts the outer peripheral surface of the workpiece W to support the...

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PUM

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Abstract

Provided is a grinding machine that does not require work for replacing an upper roller (12) and a lower roller (14) and that ensures interchangeability thereof, even when the outer diameter of a workpiece (W) and the inclination state of the generating line of the workpiece (W) are different. A headstock (7) of the grinding machine comprises an upper-roller device (13) on which the upper roller (12) is rotatably supported, and a lower-roller device (15) on which the lower roller (14) is rotatably supported. The upper-roller device (13) and the lower-roller device (15) are provided with vertical position adjustment mechanisms (22), (46), respectively, for modifying the height position related to the vertical direction thereof, and a turn angle adjustment mechanism (21) for modifying the inclination angles of the upper-roller device (13) and the lower-roller device (15) with respect to the horizontal direction of the center axes thereof.

Description

technical field [0001] The present invention relates to a grinding machine, which is used for grinding the peripheral surface or end surface of a workpiece having a cylindrical shape, a conical trapezoidal shape or a cylindrical shape, such as rollers and track rings constituting rolling bearings. Background technique [0002] As the peripheral surface of a workpiece that has a cylindrical shape, a conical trapezoidal shape, or a cylindrical shape, that is, the cross-sectional shape of the outer peripheral surface is circular, for the rollers (cylindrical rollers, tapered rollers), race rings, etc. that constitute the rolling bearing. Or the grinder that grinds the end face, in the past, known use roller, mold base, the so-called centerless type grinder (referring to Japanese Patent Laying-Open No. 62-148147 communique, Japanese Patent Application Laid-Open No. Publication No. 2009-136953). Figure 9 as well as Figure 10 An example of a conventional structure of a 2-roller...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B5/18B24B5/22B24B5/24B24B5/307B24B7/16
CPCB24D5/00B24B5/22B24B5/24B24B5/307B24B7/16
Inventor 水浦健刚后藤哲也丸山美由纪
Owner NSK LTD
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