Commonly Used Processing Techniques For Ball Screws

Ball screws have different processing methods due to different application scenarios. In view of the current processing status of ball screws, the processing technology methods of ball screws are mainly divided into two types: chip machining and chip-free machining. The following is an analysis of the processing methods of these two ball screws.

    1. Disposal of crumbs.

    Ball screw chip machining is to use cutting and forming methods to process lead screws, mainly turning and whirlwind milling.

    Turning refers to the use of different turning tools or other tools on the lathe to process various rotating surfaces, such as: inner and outer cylindrical surfaces, inner and outer conical surfaces, threads, grooves, etc. Turning is usually used to process single-axis parts, such as: Straight shafts and discs, sets of parts.

    Eddy current cutting is an efficient thread machining method, which is suitable for large-scale rough thread machining. Threads that do not require high precision can be used to complete the cutting process.

    Second, no chip processing.

    Chip-free machining of ball screws refers to the use of metal plastic forming methods to process lead screws, mainly cold extrusion and cold rolling.

    The cold extrusion method is a processing method in which the metal blank is placed in the cold extrusion die cavity, and at room temperature, the metal blank is subjected to pressure through the punch fixed on the press to plastically deform the metal blank to make parts.

    Continuous cold rolled sheet is processed from hot rolled sheet under normal temperature conditions. Although the temperature of the steel sheet will be heated up during processing, it is still called cold rolled. The cold rolling forming process of the ball screw raceway refers to the friction force formed between the roller and the metal round bar under the push of the spiral pressure, the metal bar is bitten into the rolling zone, and then forced by the roller to produce plastic deformation.

    Compared with traditional machining, chipless machining has higher production efficiency; machining accuracy can be increased by 1~2 times; material consumption is less; when the metal fibers are torn and the surface quality is not high, chip machining requires increased grinding Process, chipless machining performance is higher.