A pneumatic clamping system for thin-walled pipes

Abstract

The invention discloses a pneumatic clamping system applicable to thin-walled tubes. The pneumatic clamping system comprises a pneumatic pressure control loop, a rotary shaft module, a piston module, a pull rod module and a clamping head, wherein the piston module is arranged at one end of a rotary shaft, the pull rod module is arranged inside the rotary shaft, and the clamping head is arranged at the other end of the rotary shaft. According to the pneumatic clamping system applicable to the thin-walled tubes, disclosed by the invention, the self adaptability is strong, the flexibility is good, and the tubes of different tube diameters can be clamped; a precise clamping force can be provided, and the clamping force is uniform; shown by customer verification, the machining accuracy is good and can reach below + / -3 microns; a tube can be smoothly clamped into a clamping head hole by the tube clamping head; during cutting, the tube is clamped tightly by a pneumatic clamping force; and when the feeding is required, a clamping mechanism is unclamped through only putting through pressure gas, so that the feeding can be carried out smoothly, the whole process can be completed in several seconds, and the repeatable accuracy reaches below + / -2 microns.

Description

technical field

[0001] The invention belongs to the technical field of laser fine processing of thin-walled pipes, and in particular relates to a pneumatic clamping system suitable for thin-walled pipes. Background technique

[0002] Due to the simple process and fast speed, laser cutting has the characteristics of small slit width, good incision parallelism, small surface roughness, high dimensional accuracy, small workpiece deformation and heat-affected zone, no mechanical stress and surface damage, etc., and can accurately cut shapes Complex micro-parts have thus become the main processing method used in the field of micro-machining of thin-walled pipes.

[0003] In the existing tube laser processing equipment, most of the tubes are clamped by a three-jaw chuck, and more than three jaws are evenly distributed on a circumference, and these jaws are moved to the center at the same time by mechanical or electric means. Provide a way to clamp the pipe. When this clamping ...

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