Machine tool for processing screw of compressor and star wheel

Abstract

The invention provides a machine tool for processing a single threaded rod and star wheel of a compressor, which comprises a machine tool body, a rotary table, a headstock, a movable bracket, a beam, a stand column, a feed device, a control system and a torque motor drive system, wherein the rotary table is fixed on the machine tool body, the headstock is fixed on the beam, the movable bracket is arranged on the beam by a linear guide rail pair, the beam is fixed on the stand column, the stand column and the machine tool body are connected by a large-plane rectangular guide rail pair, the feed device is arranged at the end part of the machine tool body, the movable bracket is driven by an oil cylinder, a main shaft of the rotary table is connected with a rotating shaft of a first torque motor and a grating drum of a first angle coder in an integrated way, and a main shaft of the headstock is connected with a rotating shaft of a second torque motor and a grating drum of a second angle coder in an integrated way. Through adopting the technical scheme of the invention, the machining precision, reliability and production efficiency of the machine tool are greatly improved, and a reliable guarantee is provided for producing high-precision threaded rods and star wheels in a large scale, and the manufacturing of single-screw compressors becomes easier.

Description

technical field [0001] The invention relates to a machine tool for mechanical processing, especially a machine tool for processing screw rods and star wheels for compressors. Background technique [0002] Screw compressor is the replacement product of reciprocating piston compressor, and it is the development trend of power compressor in the future. Screw compressors are divided into twin-screw and single-screw. Twin-screw compressors are composed of two screws and a body that are meshed with each other in the opposite direction of the helical teeth; single-screw compressors are composed of a screw, a pair of star wheels and a body. composition. Because the single-screw compressor has the characteristics of simple structure, small volume and complete balance of screw force, it has unique advantages in mechanical properties, energy saving and environmental protection. [0003] The processing and assembly technology of the screw and the star wheel is the technical core of th...

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Problems solved by technology

[0004] At present, the equipment for processing screws and star wheels in my country is generally transformed from ordinary gear hobbing machines, or CNC special machine tools that still retain the developed kinematic chain as mechanical transmission. The transmission chain of this type of machine tool is complicated and has many transmission links. The processing accuracy of the screw and star wheel is poor, which is far from meeting the requirements of the compressor for the meshing pair of the screw and star wheel. As a result, the produced single-screw compressor has high noise, high energy consumption, and short life, which restricts the single-screw compressor in my country. Technical Application and Development of Compressor

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