Machining process for high-precision small-long-diameter part

• Main Author: SHI GUOCHUN
• Format: Patent
• Language: Chinese; English
• Published: 09.04.2019
• Subjects: BORING; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT; DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS; GRINDING; MACHINE TOOLS; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS; MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; POLISHING; TRANSPORTING; TURNING

A machining process for a high-precision small-long-diameter part comprises the steps that S1, fixing sections at the two ends of the part are machined to be 10 mm long; S2, the fixing sections at thetwo ends of the part are mounted on two clamping jaws correspondingly, the clamping jaws are inserted into fixing holes of the fixing sections, and the depth of the fixing holes is 5 mm; S3, the interval of two sliding rails is adjusted, so that the part is in a stretched state; S4, two servo motors drive the part to rotate synchronously, and the rotation speed is 5000 r/min; S5, a small-diametersection is turned through a turning tool; S6, the rotation speed of the servo motors is adjusted to be 3000 r/min; S7, the small-diameter section is ground through a grinding tool; S8, the rotation speed of the servo motors is adjusted to be 2000 r/min; S9, an outer circle of the small-diameter section is sanded through a grinding wheel; and S10, transition sections and the fixing sections at thetwo ends of the part are r