A manufacturing method of machinery parts for linear motion and linear bushing manufactured by the above method

Abstract

Disclosed are a flanged linear bushing formed by connecting an outer sleeve and a flange and a method of manufacturing the same. The manufacturing method includes the steps of: processing the edge of the outer sleeve at a predetermined angle to smoothly connect between the flange and the outer sleeve; after the flange and the outer sleeve are connected to each other, taking into account the the thickness of the outer sleeve, forming recesses on the outer surface of said outer sleeve at a uniform depth and width for simple laser welding; in a form corresponding to the recesses formed on said outer sleeve, machining the inner edge of the flange along the inner circumference of the flange to allow simple laser welding; connecting said flange and the outer sleeve manufactured through the above steps; and welding the notch formed on the outer sleeve using a high-energy beam A connection portion that is connected to each other with a structure formed on the flange, or the connection portion is welded with a high-energy beam having better linearity, while feeding a filler metal of a predetermined diameter to the connection at a predetermined speed. The invention can improve productivity through automatic processing, obtain dimensional stability and higher precision, and reduce manufacturing cost by reducing manufacturing processes.

Description

technical field [0001] The present invention relates to a method of manufacturing a flanged linear bushing, and a flanged linear bushing manufactured by the method, the method comprising: processing the edge of the outer sleeve at a predetermined angle, so as to be connected between the flange and the flanged linear bushing. smooth connection between the outer casings; connecting the flange and the outer casing; welding the connecting portion by a high energy beam, or welding the connecting portion by a high energy beam with better linearity, while supplying filler metal to the weld. Background technique [0002] The manufacture of flanged linear bushings usually adopts cold forging method, brazing method, bonding method, shrink fit method, method of screwing the outer casing and flange, wedge and nut assembly method, and snap ring fixing method. Due to the complex manufacturing process, the cold forging method has more problems. If a uniform and stable structure cannot be ...

AI Technical Summary

Problems solved by technology

Brazing is one of the most common methods used in metal joining, but the problem with brazing is that it degrades the base due to deformation of the material and decarburization during the brazing process due to the high temperatures required for the copper melt to flow. Increase the strength of the base metal, reduce surface hardness, and increase brittleness

In addition, the bonding method has many problems due to difficulty in controlling proper surface roughness, dimensional tolerance, maintenance of a clean surface, and environmental pollution due to bonding materials

The problem with the method of threading the outer casing and flange is that it is expensive to machine because of the high precision that must be done in the process, and the screw joint may loosen during use

[0003] The problem with the wedge and nut assembly method and the snap ring fixing method is that it is difficult to make a product of good quality because the machined part is complicated, and the manufactured product cannot remain the same because the dimensional deviation of the parts often makes assembly difficult standard quality

[0004] Moreover, another problem of the cold forging method and the brazing method in the conventional manufacturing method is that since the surface of the flanged linear bush should be turned, heat-treated, surface-treated and ground in the integral form of the flanged linear bush, Therefore, the machining process is more complicated and difficult to apply to the automatic processing of mass production

Images