The moving parts of the intermediate frequency spot welding machine often utilize various sliding or rolling guide rails, combined with cylinders to form the electrode pressure mechanism. The cylinder, powered by compressed air, drives the upper electrode to move vertically along the guide rail.
In welding machines, guide rails not only serve as mechanisms for motion but also provide guidance for the electrodes and other moving parts while bearing supporting or reactive forces. Guide rails commonly have cylindrical, rhombic, V-shaped, or dovetail cross-sectional shapes.
Currently, in most welding machines, rolling guide rails are widely used in pressure mechanisms or other movements to reduce friction and improve the responsiveness of the welding machine’s pressure mechanism. The rolling parts employ various rolling bearings, and in recent years, self-circulating rolling guide sleeves (also known as linear motion bearings) have also been utilized.
Due to the occurrence of splashes and dust during the welding process, protecting and lubricating the surface of the guide rails is essential. The cylinder, combined with the guide rails, constitutes the moving parts. The cylinder operates by compressed air, and changes in friction and inertia can affect motion accuracy and, consequently, welding quality. Exceeding a certain degree of change can lead to malfunctions. Therefore, in intermediate frequency spot welding machines, besides understanding the action characteristics of the cylinder, careful selection of the structure and transmission mode of the guide rails should also be considered, along with factors such as lubrication, protection, and maintenance.
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Post time: Mar-11-2024
