CN103737086A - Technique for milling two side planes of automobile bearing support - Google Patents

Abstract

The invention discloses a technique for milling two side planes of an automobile bearing support, which mainly comprises the following steps: (1) a workpiece material HT200 with the processing roughness of 10 mu m is selected, the machine tool is a YG6 vertical miller, the cutter is an X52K end mill, and the cutting fluid is a common emulsion; (2) the milling depth is determined; (3) the feed engagement fz is determined, wherein the power of the YG6 miller is 7.5KW; the pure ground standard and service life of the milling cutter are selected; and (4) finally, the actual cutting speed is set at V=94.2m/minute, and the feed engagement is set at 0.125mm/z. The bearing produced by the method is beneficial to stabilizing the roller and fixing the balls in the installation process, is convenient for improvement according to different automobile models and is convenient for replacement or maintenance in time.

Description

Two side plane techniques of a kind of automobile bearing support milling

Technical field

The present invention relates to automobile technical field, relate in particular to two side plane techniques of a kind of automobile bearing support milling.

Background technology

Along with the progress of technology, in the front and Frontal offset impact process of car load, when often there is enging cabin and causing driver's shank and step space by compression to the space invasion of driving cabin, steering column mandrel makes its chest trauma evil or directly causes driver's death to driver's chest play, leg room is extruded and increases rescue difficulty, therefore collapse type tubing string is widely applied on car load, and shrinkable sliding steering jackshaft is also applied on car load gradually simultaneously.

At present, turn to transmission jackshaft mostly to be splined sleeve and splined shaft is in mating connection, spline fitted is conducive to turn to the flexible of transmission jackshaft, is convenient to plant personnel assembling and is conducive to turn to the crumple of transmission jackshaft simultaneously when there is car load collision.Client requires also more and more higher to car load comfortableness, the particularly comfortableness of handling maneuver can affect lubricated reliability because heating up and lacking lubricant but turn in the long-term use procedure of transmission jackshaft; Splined sleeve is the inner vacuum that easily forms in use, affects the slip of jackshaft, reduces the comfortableness of steering operation.

Thereby, for the support of bearing of jackshaft, the processing of carrying out two end faces need to be set, for the processing of two side planes of this part, exist certain drawback, therefore, for above aspect, need to make effective innovation.

Summary of the invention

The object of this invention is to provide a kind of can minimizing accident in driver's two side plane techniques of automobile bearing support milling of meeting with dangerous degree, being conducive to firm roller, being beneficial to fixing ball when mounted, being convenient to improve according to different automobile types, to solve many deficiencies of prior art.

Object of the present invention is carried out specific implementation by the following technical programs:

Two side plane techniques of a kind of automobile bearing support milling, are mainly comprised of following steps:

(1) first, processing work material HT200, processing roughness is 10 μ m, lathe: YG6 vertical knee-type milling machine, cutter X52K slotting cutter, cutting fluid is common emulsion;

(2) then, determine milling depth, because allowance is little, the body of casting is metal mold, and Casting surface roughness is 10 μ m, so, in one-pass, cut;

(3) determining feed engagement fz, is 7.5KW when using YG6 milling machine power; Select milling cutter to grind pure standard and cutter life, when milling cutter tooth knife face greatest wear amount is roughing 2.0;

(4) last, it is 0.125mm/z that actual cut speed 94.2m/min and feed engagement are set, and cutting speed: V=94.2m/min, the amount of feeding are 0.125mm/z; It is Pcm=5.63KW that machine tool chief axis allows power, the symmetrical milling cutter of installing.

The beneficial effect of two side plane techniques of automobile bearing support of the present invention milling is: the support of bearing parts of producing by the method can minimizing accident in driver meet with dangerous degree, be conducive to firm roller, be beneficial to when mounted fixing ball, be convenient to improve according to different automobile types, be convenient to change timely or safeguard.

The specific embodiment

Two side plane techniques of automobile bearing support milling described in the embodiment of the present invention, are mainly comprised of following steps:

(1) first, processing work material HT200, processing roughness is 10 μ m, lathe: YG6 vertical knee-type milling machine, cutter X52K slotting cutter, cutting fluid is common emulsion;

(2) then, determine milling depth, because allowance is little, the body of casting is metal mold, and Casting surface roughness is 10 μ m, so, in one-pass, cut;

(3) determining feed engagement fz, is 7.5KW when using YG6 milling machine power; Select milling cutter to grind pure standard and cutter life, when milling cutter tooth knife face greatest wear amount is roughing 2.0;

(4) last, it is 0.125mm/z that actual cut speed 94.2m/min and feed engagement are set, and cutting speed: V=94.2m/min, the amount of feeding are 0.125mm/z; It is Pcm=5.63KW that machine tool chief axis allows power, the symmetrical milling cutter of installing.

Claims (1)

1. two side plane techniques of automobile bearing support milling, is characterized in that, mainly following steps, consist of:

(1) first, processing work material HT200, processing roughness is 10 μ m, lathe: YG6 vertical knee-type milling machine, cutter X52K slotting cutter, cutting fluid is common emulsion;

(2) then, determine milling depth, because allowance is little, the body of casting is metal mold, and Casting surface roughness is 10 μ m, so, in one-pass, cut;

(3) determining feed engagement fz, is 7.5KW when using YG6 milling machine power; Select milling cutter to grind pure standard and cutter life, when milling cutter tooth knife face greatest wear amount is roughing 2.0;

(4) last, it is 0.125mm/z that actual cut speed 94.2m/min and feed engagement are set, and cutting speed: V=94.2m/min, the amount of feeding are 0.125mm/z; It is Pcm=5.63KW that machine tool chief axis allows power, the symmetrical milling cutter of installing.