Processing method of prestress butt-joint precision mechanical steel guide rail

Abstract

The invention belongs to the field of mechanical production, in particular to a prestress butt-joint precision mechanical steel guide rail and a processing method thereof. The prestress butt-joint precision mechanical steel guide rail is formed by the butt joint of two or more segments of steel guide rails; special butt-joint structure is arranged at the joint to realize precise butt joint, and beneficial prestress is formed at the joint, thereby the bearing performance of the joint is improved. In addition, the invention adopts a processing method of numerical control spark linear cutting toprocess the special structure, thereby ensuring higher butt-joint precision obtained by the steel guide rail, convenient assembly and better manufacturability. The invention is more suitable for high-hardness steel guide rail elements without restriction of hardness of the workpiece materials.

Description

technical field [0001] The invention belongs to the field of mechanical manufacturing, in particular to a prestressed butt joint precision mechanical steel guide rail and a processing method thereof. Background technique [0002] A mechanical steel rail is a mechanical component. Its basic shape is a strip, and its cross-sectional shape is mostly rectangular, circular, polygonal or combined. One or more sides in the length direction of the strip body are the working surface and the installation reference plane. The working surface of the mechanical steel guide rail forms a guiding fit with the corresponding partner, such as the working surface of the rolling guide rail and the working surface of the sliding guide rail. The installation datum plane is the joint surface of the mechanical steel guide rail and the mechanical base part, and it is also the machining datum plane. The basic requirements of mechanical steel guide rails are precise size, straight shape, smooth sur...

AI Technical Summary

Problems solved by technology

In addition, because the end of this traditional steel guide rail section is flat and does not have a connection function, the positional relationship between adjacent guide rail sections depends on the installation reference plane, positioning pins, fixing screws, etc. to position and fix the guide rail sections on the mechanical foundation. The disadvantage of this traditional method is that there are inevitably gaps in the assembly, and there is no actual connection between the guide rail sections. Therefore, the accuracy and load-bearing performance of this assembled guide rail are not easy to guarantee, and the assembly is inconvenient.

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