Deep hole processing method adopting common lathe

Abstract

The invention discloses a deep hole processing method adopting a common lathe, and relates to the mechanical processing field, in particular to the deep hole processing method adopting the common lathe. The deep hole processing method comprises the following steps: turning the two end surfaces throughout the overall length with machining allowance of 1 mm, chamfering at the two ends of a hole by an angle of 2*30 degrees, using two tips to clamp and roughly turn an excircle with allowance of 0.5mm in single side; clamping one end of a workpiece, supporting the other end of the workpeice by use of a center frame, using an inner hole cutter to roughly turn the inner hole throughout one half the overall length with the allowance of 0.5mm in single side; turning round the workpiece, and roughly turning the other end of the workpiece throughout the rest of the length of the hole with the allowance of 0.5mm in single side of the inner hole; finishing the two end surfaces and controlling the overall length of the workpiece, chamfering the orifices at the two ends by 2*30 degrees; using two ejector pins to clamp and finish the excircle of a cylinder to dimension requirements; using four claws to clamp the excircle, aligning, and using the center frame to support the finished inner hole, wherein the roughness is Ra3.2 and allowance is 0.2mm; repeating the third-step clamping process to finish the inner hole throughout the other half length, wherein the roughness is Ra3.2 and the allowance is 0.2 mm; and carrying out floating boring. The deep hole processing method is simple in processing process, adopts the common lathe to process a deep hole, so that the production cost is reduced, and processing precision can be met.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a deep hole processing method of a common lathe. Background technique [0002] It is difficult to process deep-hole parts with ordinary lathes, especially when the length-to-diameter ratio is greater than 10. At present, special tools or special machine tools are used to increase production costs, and to process single-piece or small-batch deep-hole workpieces, usually use extended standard twist drills to drill on ordinary lathes. However, it is difficult to meet the requirements when the drilled deep hole needs to be further refined so that the deep hole can achieve higher dimensional accuracy and a smaller surface roughness value. Contents of the invention [0003] The invention provides a method for processing deep holes with an ordinary lathe, which has a simple processing process, can use ordinary lathes to process deep holes, reduces production costs, and can meet t...

AI Technical Summary

Problems solved by technology

However, when the drilled deep hole needs to be further refined to make the deep hole achieve higher dimensional accuracy and smaller surface roughness, it is difficult to meet the requirements.