Lead screw nut pair transmission control device and method, nut subassembly processing method

Abstract

Lead-screw nut vice transmission control device and the method and the processing method of nut components, the torque sensor in hydraulic control device of control device changes the torque transmitted by lead-screw into signals and transmits the signals to controller, the controller sends the oil duct reversing control signals on the three-position four-way magnetic reversing solenoid valve, the controller controls the output mouth pressure of pressure control valve which is transmitted on the side surface contacted with nut and lead-screw through two pipelines, the screw thread two sides of nut is opened with two spiral oil-storing grooves which are sealed and formed by two end covers of nut two ends and the surface contacted with nut and lead-screw; the control method is: the controller controls the output mouth pressure of pressure control valve to make it is less than or equal with 8TN / ((phi12-phi22)L), the processing method is: first assembling the nut and two end covers into one unit, processing screw thread on the inner hole surface of nut and two end covers, then processing two spiral oil-storing grooves on the screw thread two sides of nut, last assembling the nut and two end covers into one unit.

Description

technical field

[0001] The invention relates to a machine tool, a screw nut auxiliary feeding device and nut processing. Background technique

[0002] In the prior art, the feed system of high-speed machine tools is mainly a ball screw or a linear motor. Due to a series of reasons such as large transmission error, severe friction and wear and heat generation, elastic deformation of the workbench and non-linear error caused by the reverse dead zone, the ball screw is difficult to develop at a higher speed; linear motors are not only difficult to control, but also It needs to solve the problems of long-distance movement, heat dissipation, magnetic isolation, providing sufficient thrust, self-locking and lightweight moving parts. In addition, the high cost also seriously affects its popularization and application. In addition, the parallel mechanism, which is easy to achieve higher speed and acceleration, cannot undertake the heavy responsibility of high-speed feed due to imma...

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