A processing method for high-precision adjusting gaskets used in electric wheeled mining vehicles
A technology for adjusting gaskets and processing methods, which is applied in the field of gasket processing, can solve the problems of affecting service life, plane shape tolerance out of tolerance, and the overall performance index decline of electric wheel mine car parts, achieving high precision and small deformation effects
Active Publication Date: 2017-01-04
INNER MONGOLIA NORTH HAULER
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Problems solved by technology
If the plane shape tolerance is out of tolerance, it will have a serious impact on the adjustment of the precision clearance and the bearing load, which will lead to a decline in the overall performance index of the electric wheel mine car where the part is used, and then affect the service life of the part
In the traditional turning process, the positioning datum plane is provided for the grinding machine, which is a whole plane, and there is no compensation for the anti-deformation amount of the boss plane, which results in a serious tolerance of the plane shape during the grinding process.
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[0019] The present invention will be further described below in conjunction with the accompanying drawings.
[0020] see Figure 1 ~ Figure 3 The method for processing the high-precision adjusting gasket used in the electric wheel mine car includes the following steps:
[0021] A method for processing high-precision adjusting gaskets used in electric wheeled mining vehicles, comprising the following steps:
[0022] (1) Tube blanking:
[0023] (2) Turning:
[0024] (3) Heat treatment: quenching + tempering;
[0025] (4) Semi-finishing car
[0026] (5) Finishing: before finishing, turn a flat surface of the anti-deformation compensation boss concentric with the outer circular surface of the tube on either end surface of the tube after step (4) semi-finishing, and its radius is the finished gasket The radius is 1 / 2, and then the surface of the tube with anti-deformation compensation boss is fine-turned; this processing method changes the compensation plane of the boss withou...
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Abstract
The invention discloses a processing method for high-precision adjusting gaskets used in electric-wheeled minecarts. In the invention, before finishing turning, a reverse deformation concentric with the outer circular surface of the pipe material is turned on any end surface of the pipe material after semi-finishing turning. Compensation boss plane, whose radius is 1 / 2 of the radius of the finished gasket, and then finish turning the plane of the pipe material with reverse deformation compensation boss; the semi-finishing is: firstly, the reverse deformation compensation compensation boss plane is positioned Datum plane, conduct semi-finish grinding on the other side of the pipe material without anti-deformation compensation boss plane, the roughness is 0.8 um-1.6um, the flatness is within 0.10mm, and then the pipe material anti-deformation compensation protrusion Semi-fine grinding is carried out on the surface of the platform, and the surface of the anti-deformation compensation boss is ground off, so that the surface roughness is 0.8um ‑1.6um, and the flatness is within 0.05mm, and the gasket is made. The processing method of the high-precision adjusting gasket enables the processed high-precision adjusting gasket to have small deformation and high precision.
Description
technical field [0001] The invention relates to a gasket processing method, in particular to a method for processing high-precision adjusting gaskets used in electric-wheeled mining vehicles. Background technique [0002] The ratio of thickness to diameter of the existing high-precision adjusting gasket is 1 / 54, and the largest diameter is 305mm. Therefore, the plane deformation of the high-precision adjusting gasket is very large when turning and grinding. Generally, the processing deformation is 0.30-0.55mm. normal. Considering that this part is used in a key part of the electric wheel mine car, it plays the dual role of adjusting the precision gap and carrying the load. It not only has high requirements on mechanical properties, but also has very high requirements on the tolerance of the plane shape. If the plane shape tolerance is out of tolerance, it will have a serious impact on the adjustment of the precision gap and the bearing load, which will lead to the decline o...
Claims
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IPC IPC(8): B23P15/00
Inventor 韩军薛继奎刘文忠闫海军王美郝巧平班新龙司登堂李显武
Owner INNER MONGOLIA NORTH HAULER