Cable-free linear motor feeding system

Abstract

The invention provides a cable-free linear motor feeding system, and belongs to the technical field of mechanical equipment. According to the cable-free linear motor feeding system, a main groove anda side groove are formed in a marble pedestal, the side groove serves as an air guideway to support a load assembly to move, throttling holes are formed in the three surfaces of the side groove correspondingly, a water cooling plate is made of a non-permeability-magnetic material and is arranged at the bottom of the main groove of the pedestal, a water channel pipeline is arranged in the plate, alinear motor stator is arranged on the upper surface of the water cooling plate, a linear motor rotor is arranged on the lower surface of the load assembly and drives the load assembly to do reciprocating rectilinear motion, a position signal detection assembly is composed of a grating ruler and a reading head, the grating ruler is arranged on the upper surface of the load assembly, the reading head is fixed on the upper surface of the pedestal and reads a signal of the grating ruler in the movement process of the load assembly, and the reading head and a winding in the linear motor stator areconnected to a controller. The system has the advantages that the problem that the positioning precision of an existing linear motor feeding system is interfered by cables can be solved, the cable-free movement of the load assembly is realized, the operation speed of the system is increased, and the positioning precision of the system is improved.

Description

technical field [0001] The invention relates to a cable-free linear motor feeding system, which belongs to the technical field of mechanical equipment. Background technique [0002] With the continuous development of high-speed and high-precision machining, linear motors are more and more widely used in various machine tools and machining centers. Compared with the traditional rotating motor plus ball screw system, the feed system using linear motor has the advantages of no intermediate mechanical conversion link, high positioning accuracy, fast running speed and easy maintenance. At present, the most widely used feed system is based on U-shaped linear motors. However, in this system, the motor armature is used as the mover, and the positioning accuracy of the system is still limited by the armature wires, air pipes and water cooling pipes for air flotation guide rails and other cables. The impact of the system limits the further improvement of the system's operating speed ...

AI Technical Summary

Problems solved by technology

At present, the most widely used feed system is based on U-shaped linear motors. However, in this system, the motor armature is used as the mover, and the positioning accuracy of the system is still limited by the armature wires, air pipes and water cooling pipes for air flotation guide rails and other cables. The impact of the system limits the further improvement of the system's operating speed and positioning accuracy.

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