High-precision adjustment gasket machining method for electric-wheel mining vehicle
A technology for adjusting gaskets and processing methods, which is applied in the field of gasket processing, and can solve problems such as excessive tolerance of plane shape, affecting service life, and decline in overall performance indicators of parts of electric wheeled mining vehicles, and achieves the effect of small deformation and high precision
Active Publication Date: 2015-03-25
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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[0020] The present invention will be further described below in conjunction with the accompanying drawings.
[0021] 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:
[0022] A method for processing high-precision adjusting gaskets used in electric wheeled mining vehicles, comprising the following steps:
[0023] (1) Tube blanking:
[0024] (2) Turning:
[0025] (3) Heat treatment: quenching + tempering;
[0026] (4) Semi-finishing car
[0027] (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 high-precision adjustment gasket machining method for an electric-wheel mining vehicle. Before finish turning, a reversible-deformation-amount compensation boss plane concentric with an outer circle face of a pipe is turned on any end face of the pipe subjected to half finished turning, the radius of the reversible-deformation-amount compensation boss plane is 1 / 2 that of a finished gasket, and finish turning is performed on the reversible-deformation-amount compensation boss plane of the pipe; according to half accurate grinding, first, the reversible-deformation-amount compensation boss plane serves as a positioning reference face, the other side face, without the reversible-deformation-amount compensation boss plane, of the pipe is subjected to half accurate grinding, the roughness ranges from 0.8 micron to 1.6 microns, the flatness is within 0.10 mm, then, the reversible-deformation-amount compensation boss plane of the pipe is subjected to half accurate grinding, the reversible-deformation-amount compensation boss plane is removed in a grinding mode, the plane roughness is made to range from 0.8 micron to 1.6 microns, the flatness is within 0.05 mm, and the gasket can be manufactured. Due to the high-precision adjustment gasket machining method, the machined high-precision adjustment gasket is small in deformation and high in accuracy.
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
CPCB23P15/00
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