CN104625609A - Method for machining linear ultra-long, ultra-thin and ultra-fine parts - Google Patents

Abstract

The invention relates to the field of machining, in particular to a method for machining linear ultra-long, ultra-thin and ultra-fine parts. The method includes the following steps that firstly, forge pieces are forged and annealed; secondly, high-speed milling and square planning are conducted; thirdly, heat treatment is conducted; fourthly, plane grinding is conducted; fifthly, bench work is conducted, wherein 30-degree slope lines are scribed at the two ends; sixthly, vertical milling is conducted, wherein a grinding surface serves as a reference, and 30-degree slopes are milled at the two ends; seventhly, heat treatment is conducted, where the quench tempering hardness ranges from 50 HRC to 55 HRC, oxidation and deformation are avoided, the workpiece thickness is leveled within 0.1 mm, and internal stress generated in the quenching and leveling processes is reduced through artificial aging; eighthly, plane grinding is conducted, wherein the two thickness surfaces are repeatedly turned over and ground till the surfaces reach the required size and the two sides are exposed to light, and it is guaranteed that parallelism and perpendicularity are smaller than 0.05 mm; ninthly, linear cutting is conducted, wherein the surfaces of workpieces in the length direction are leveled within 0.05 mm, and artificial aging is conducted; tenthly, plane grinding is conducted; eleventhly, tool grinding is conducted, wherein slopes, profile grooves and arcs of the workpieces are ground. Operation is simple, the machining quality and the dimensional accuracy of the workpieces can be guaranteed, production efficiency is high, production cost is reduced, and economic benefits are increased.

Description

Linearity overlength, ultra-thin, a ultra-fine processing method

Technical field

The present invention relates to field of machining, be specifically related to linearity overlength, ultra-thin, a ultra-fine processing method.

Background technology

The rule fixture that motor production line equipment uses, its purposes smoothly enamel covered wire is pushed stator punching groove during work runs, rule fixture manufactures difficult point and mainly concentrates on the elongate rod parts such as lower guideway, lower guideway belong to overlength, ultra-thin, ultra-fine, dimensional accuracy is high, profile is complicated, and difficulty of processing is large.Due to workpiece, make Set and Positioning in process, and during turning, all can there is slippage or the workpiece deformation of workpiece, the dimensional accuracy of workpiece can not be ensured well, and due to work pieces process difficulty large, make production efficiency low, add production cost.

Summary of the invention

In order to solve the problem, the invention provides a kind of simple to operate, workpiece processing quality and dimensional accuracy can be ensured, and production efficiency being high, reducing production cost, the linearity overlength of increasing economic efficiency, ultra-thin, a ultra-fine processing method.

Linearity overlength of the present invention, ultra-thin, a ultra-fine processing method, comprise the following steps:

The first step, forging, carries out annealing in process, considers the manufacturability that part is processed, and takes five one, cutting after subsequent heat treatment quenching, for ensureing part material dense structure property, and has good mechanical property, adopts forging materials;

Second step, High Speed Milling Operation, uses flat-nose pliers clamping workpiece, plane side, and length direction is all stayed the allowance of 3mm-5mm;

3rd step, heat treatment, thickness of workpiece smoothing is within 0.1mm, and carry out artificial aging, during high speed milling side, heat in metal cutting will cause distortion, need to smooth laggard row artificial aging for this reason, to reduce inner stress of work, reduces subsequent handling machining deformation amount;

4th step, flat stone mill, thickness two sides repeatedly turn-over is ground to and requires size, and see light both sides, and ensure the depth of parallelism and perpendicularity≤0.05mm, logical, cross repeated multiple times turn-over grinding and can reduce stress because grinding force effect produces, gradually reduce the degree of crook of workpiece;

5th step, pincers worker, draws 30 °, two ends inclined-plane line;

6th step, vertical milling take grinding face as benchmark, inclined-plane, 30 °, milling two ends;

7th step, heat treatment, Q-tempering hardness 50HRC-55HRC, anti-oxidation, distortion, thickness of workpiece smoothing within 0.1mm, and through artificial aging, is quenched to reduce and smooths the internal stress produced;

8th step, flat stone mill, thickness two sides repeatedly turn-over is ground to and requires size and see light both sides, ensures the depth of parallelism and perpendicularity≤0.05mm;

9th step, Linear cut, be benchmark with grinding face and even up centering cutting workpiece one to be divided into five, and cut two ends, because relatively changing greatly near edge internal stress after heat treatment of workpieces, centre internal stress is relatively more even, should be arranged in centre for this reason as far as possible and carry out, to reduce part deformation during Linear cut part;

Tenth step, heat treatment, the smoothing of each of Workpiece length direction within 0.05mm, and through artificial aging, to reduce the internal stress that Linear cut and smoothing produce;

11 step, flat stone mill, each of grinding work piece length direction, to requiring size, ensures the depth of parallelism and perpendicularity≤0.01mm;

12 step, tool grinder, each inclined-plane of grinding work piece, type groove and circular arc;

13 step, pincers worker deburr, polishing profile;

The present invention is simple to operate, can ensure workpiece processing quality and dimensional accuracy, and production efficiency is high, reduces production cost, increases economic efficiency.

Detailed description of the invention

Linearity overlength of the present invention, ultra-thin, a ultra-fine processing method, comprise the following steps:

The first step, forging, carries out annealing in process, considers the manufacturability that part is processed, and takes five one, cutting after subsequent heat treatment quenching, for ensureing part material dense structure property, and has good mechanical property, adopts forging materials;

Second step, High Speed Milling Operation, uses flat-nose pliers clamping workpiece, plane side, and length direction is all stayed the allowance of 3mm-5mm;

3rd step, heat treatment, thickness of workpiece smoothing is within 0.1mm, and carry out artificial aging, during high speed milling side, heat in metal cutting will cause distortion, need to smooth laggard row artificial aging for this reason, to reduce inner stress of work, reduces subsequent handling machining deformation amount;

4th step, flat stone mill, thickness two sides repeatedly turn-over is ground to and requires size, and see light both sides, and ensure the depth of parallelism and perpendicularity≤0.05mm, logical, cross repeated multiple times turn-over grinding and can reduce stress because grinding force effect produces, gradually reduce the degree of crook of workpiece;

5th step, pincers worker, draws 30 °, two ends inclined-plane line;

6th step, vertical milling take grinding face as benchmark, inclined-plane, 30 °, milling two ends;

7th step, heat treatment, Q-tempering hardness 50HRC-55HRC, anti-oxidation, distortion, thickness of workpiece smoothing within 0.1mm, and through artificial aging, is quenched to reduce and smooths the internal stress produced;

8th step, flat stone mill, thickness two sides repeatedly turn-over is ground to and requires size and see light both sides, ensures the depth of parallelism and perpendicularity≤0.05mm;

9th step, Linear cut, be benchmark with grinding face and even up centering cutting workpiece one to be divided into five, and cut two ends, because relatively changing greatly near edge internal stress after heat treatment of workpieces, centre internal stress is relatively more even, should be arranged in centre for this reason as far as possible and carry out, to reduce part deformation during Linear cut part;

Tenth step, heat treatment, the smoothing of each of Workpiece length direction within 0.05mm, and through artificial aging, to reduce the internal stress that Linear cut and smoothing produce;

11 step, flat stone mill, each of grinding work piece length direction, to requiring size, ensures the depth of parallelism and perpendicularity≤0.01mm;

12 step, tool grinder, each inclined-plane of grinding work piece, type groove and circular arc;

13 step, pincers worker deburr, polishing profile;

The present invention is simple to operate, can ensure workpiece processing quality and dimensional accuracy, and production efficiency is high, reduces production cost, increases economic efficiency.

Claims (1)

1. linearity overlength, ultra-thin, a ultra-fine processing method, is characterized in that, comprise the following steps:

The first step, forging, carries out annealing in process, considers the manufacturability that part is processed, and takes five one, cutting after subsequent heat treatment quenching, for ensureing part material dense structure property, and has good mechanical property, adopts forging materials;

Second step, High Speed Milling Operation, uses flat-nose pliers clamping workpiece, plane side, and length direction is all stayed the allowance of 3mm-5mm;

3rd step, heat treatment, thickness of workpiece smoothing is within 0.1mm, and carry out artificial aging, during high speed milling side, heat in metal cutting will cause distortion, need to smooth laggard row artificial aging for this reason, to reduce inner stress of work, reduces subsequent handling machining deformation amount;

4th step, flat stone mill, thickness two sides repeatedly turn-over is ground to and requires size, and see light both sides, and ensure the depth of parallelism and perpendicularity≤0.05mm, logical, cross repeated multiple times turn-over grinding and can reduce stress because grinding force effect produces, gradually reduce the degree of crook of workpiece;

5th step, pincers worker, draws 30 °, two ends inclined-plane line;

6th step, vertical milling take grinding face as benchmark, inclined-plane, 30 °, milling two ends;

7th step, heat treatment, Q-tempering hardness 50HRC-55HRC, anti-oxidation, distortion, thickness of workpiece smoothing within 0.1mm, and through artificial aging, is quenched to reduce and smooths the internal stress produced;

8th step, flat stone mill, thickness two sides repeatedly turn-over is ground to and requires size and see light both sides, ensures the depth of parallelism and perpendicularity≤0.05mm;

9th step, Linear cut, be benchmark with grinding face and even up centering cutting workpiece one to be divided into five, and cut two ends, because relatively changing greatly near edge internal stress after heat treatment of workpieces, centre internal stress is relatively more even, should be arranged in centre for this reason as far as possible and carry out, to reduce part deformation during Linear cut part;

Tenth step, heat treatment, the smoothing of each of Workpiece length direction within 0.05mm, and through artificial aging, to reduce the internal stress that Linear cut and smoothing produce;

11 step, flat stone mill, each of grinding work piece length direction, to requiring size, ensures the depth of parallelism and perpendicularity≤0.01mm;

12 step, tool grinder, each inclined-plane of grinding work piece, type groove and circular arc;

13 step, pincers worker deburr, polishing profile.