Process for producing motion guide apparatus and motion guide apparatus produced by the process
A technology of motion guidance and manufacturing method, applied in the direction of linear motion bearings, rotary motion bearings, manufacturing tools, etc., can solve the problems that cannot be considered, and achieve the effect of improving the life of the device, improving the fatigue strength and sliding performance
Active Publication Date: 2008-07-30
THK CO LTD
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Problems solved by technology
[0006] However, the conventional surface modification technology represented by shot peening or hard shot peening is a method developed for the purpose of changing (or controlling) the properties of the metal surface. (For example, scratches of several μm to tens of μm caused by abrasive grain bite) removal
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[0025] Next, preferred embodiments for carrying out the present invention will be described using the drawings. In addition, the following embodiments do not limit the invention according to each claim, and all combinations of the features described in the embodiments are not necessarily essential to the solution of the invention.
[0026] In addition, the "motion guide device" in this specification includes, for example, all rolling bearings used in machine tools or non-lubricated bearings used in vacuum, linear guides or linear guides, ball spline devices, ball screw devices, roller bearings, etc. All devices with rolling / sliding action such as column screw devices, inclined rolls, etc.
[0027] The method of manufacturing a motion guide device according to this embodiment can be used for a motion guide device configured as a linear guide device as described in FIGS. 1A and 1B . Here, FIG. 1A is an external perspective view illustrating an embodiment of a linear guide devic...
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Abstract
The present invention provides a method of manufacturing a motion guide device, which performs processing including the following steps: a grinding process of forming a rolling friction surface and a sliding surface of a motion guide device using rolling elements by grinding using a grinding tool; At least a part of the friction surface; a surface treatment process, in order to make the defects on the friction surface produced in the grinding process harmless, the friction surface formed by the grinding process is subjected to shot blasting. Through this process, the motion guide device is manufactured, thereby making harmless defects such as scratches on the friction surface, improving fatigue strength and sliding properties, and improving the life of the device. In the travel distance test, the calculated life is also realized. Greatly increased travel distance. Thereby, even if a flaw occurs on the friction surface or rolling surface due to the grinding process using the abrasive tool, the flaw can be made harmless without affecting the allowable dimensional accuracy of the processing target member.
Description
technical field [0001] The present invention relates to a method of manufacturing a motion guide device and a motion guide device manufactured by the method, and particularly relates to a method for making harmless defects on friction surfaces (terms including rolling surfaces of rolling elements) generated during processing. A method of manufacturing a motion guiding device according to the technology of the present invention, and a motion guiding device manufactured using the method. Background technique [0002] Conventionally, in motion guide devices using rolling elements such as linear guides, linear guide devices, ball spline devices, and ball screw devices, it has been considered that components constituting the device receive repeated rolling / sliding pressure via rolling elements, The friction surface between components and rolling elements is required to have a high surface quality. [0003] Such a friction surface is generally formed by grinding using a grinding ...
Claims
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IPC IPC(8): F16C29/06B24C1/10C21D7/06F16C19/36F16C33/64
CPCB24B1/00B24B19/06B24C1/10C21D7/06C21D9/36C21D9/38C21D9/40F16C19/362F16C29/0642F16C29/0695F16C33/64Y10T29/479F16C19/36F16C29/06
Inventor 道冈英一伊势弦二郎
Owner THK CO LTD