Self-adaptive self-locking screw machine based on magnetorheological fluid

Abstract

The invention relates to the technical field of self-locking screw machine equipment, and discloses a self-adaptive self-locking screw machine based on magnetorheological fluid. The self-adaptive self-locking screw machine comprises a fixed sleeve; an electromagnetic coil is fixedly mounted on one side of the outer surface of the fixed sleeve; a transmission main shaft extending to the middle of an inner cavity of the fixed sleeve movably sleeves one end of the fixed sleeve; and one end of the transmission main shaft is fixedly connected with one side of a sealing piston I which is movably sleeved in the fixed sleeve. According to the self-adaptive self-locking screw machine based on the magnetorheological fluid, a left cavity and a right cavity formed in the fixed sleeve and the magnetorheological fluid filled in the left cavity and the right cavity are arranged, and the magnetorheological fluid on the left cavity and the right cavity is in a solid-like state under the action of a magnetic field, so that the compression state of a pressure spring on the self-locking screw machine is kept; and then when a screw is locked, the elastic force of the pressure spring is used for providing stable and effective axial feeding pressure for the screw, so that the product assembling quality of the self-locking screw machine is effectively maintained, and the stability and the reliability are high.

Description

technical field [0001] The invention relates to the technical field of self-locking screw machine equipment, in particular to an adaptive self-locking screw machine based on magnetorheological fluid. Background technique [0002] Screw connection is a common technical means in the fixed connection of mechanical products, but in the traditional assembly process, a screwdriver is often used to tighten the screws to assemble the product. This original manual operation method requires more Assemblers, their labor efficiency is relatively low, and the assembly quality of products cannot be guaranteed due to the influence of inconsistent operations. [0003] Therefore, a mechanized self-locking screw machine has emerged as the times require. It uses electric power to generate rotational power to replace frequent manual screw tightening actions, thereby greatly reducing the working intensity of locking screws and effectively improving the screw locking time. The consistency ensure...

AI Technical Summary

Problems solved by technology

[0007] The invention provides a self-adaptive self-locking screw machine based on magnetorheological fluid, which can provide stable and effective axial feed pressure for the screw when locking the screw, has high assembly quality for the product, and has a long service life , high stability and reliability, which solves the problem that the existing self-locking screw machines have fixed axial feed pressure for screws, so that when locking screws of different specifications, either the axial feed pressure If it is too small, it is easy to slip, so that the locking torque of the screw is too small to meet the requirements of use; or the axial feed pressure is too high, which will cause excessive extrusion damage to the thread, which will affect its effect on the product. Connection strength, resulting in poor assembly quality and short service life of the product

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