Special centering-adjustable ultra-long thin-walled cylinder inner hole precision processing machine and centering-adjustable ultra-long thin-walled cylinder inner hole precision processing method

Abstract

The invention discloses a special centering-adjustable ultra-long thin-walled cylinder inner hole precision processing machine and a centering-adjustable ultra-long thin-walled cylinder inner hole precision processing method. The special centering-adjustable ultra-long thin-walled cylinder inner hole precision processing machine comprises a first fixed platform and a second fixed platform, whereina movable platform is arranged on the first fixed platform, the displacement stroke distance of the movable platform is 6-7 m, a rotating mechanism and a motor are installed on the movable platform,a centering connecting mechanism is sleeved on a rotating shaft, the other end of the centering connecting mechanism is sleeved with an ultra-long shaft and a cutter disc, bearing seats are arranged at the two ends of the second fixed platform, the ultra-long shaft is sleeved in a bearing, a plurality of support seats are mounted on the second fixed platform, and are used for supporting, positioning and fastening an ultra-long cylinder workpiece, the centering connecting mechanism is formed by respectively connecting two ends of a connecting disc with a connecting shaft sleeve I and a connecting shaft sleeve II and is arranged in a connecting sleeve, and a gap formed between the centering connecting mechanism and the inner surface of the connecting sleeve is 2-6 mm. According to the invention, by adjusting the centering connecting mechanism and the guiding of the left end bearing seat, the centering of the ultra-long shaft in the rotating process is guaranteed, so that the ultra-long cylinder inner hole processing is completed through one-time clamping so as to improve the precision of the processed ultra-long thin-walled cylinder inner hole and improve the qualification rate and the working efficiency.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and in particular relates to an adjustable centering special machine and method for precise machining of the inner hole of an ultra-long thin-walled cylinder. Background technique [0002] At present, in terms of mechanical processing, the inner surface of the cylinder is generally processed by a deep hole boring machine. Due to the limitation of the boring machine bed and processing equipment, the length of the processed cylinder is limited. Secondary clamping processing and forming, such as processing the surface of the inner hole of the ultra-long cylinder, cannot be processed. [0003] Most of the processing of the inner hole of the long cylinder still adopts secondary clamping and secondary machining of the inner hole, that is, one clamping and processing of the inner hole half the length of the long cylinder, turning the direction of the long cylinder, secondary clamping, and ...

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved by the present invention is that the processing of the ultra-long barrel by the existing equipment is subject to length limitations, and it is difficult to process the surface of the inner hole of the ultra-long barrel. There is no guarantee, and a special machine and method for precision machining of the inner hole of the ultra-long thin-walled cylinder with adjustable centering is provided, which can complete the machining of the inner hole of the ultra-long cylinder in one clamping, and ensure the size, coaxiality, and roundness of the ultra-long thin-walled cylinder. Accuracy and straightness processing tolerances, improve the precision of processing ultra-long and thin-walled cylinder inner holes, and improve product qualification rate and work efficiency

Images