A multi-stroke and single-stroke composite honing process
A multi-stroke, single-stroke technology, applied in the field of valve core hole processing, can solve problems such as unfavorable market promotion, poor operability, and inability to solve the problem of valve core hole deformation and sticking, so as to solve the sticking and improve the honing accuracy. Effect
Active Publication Date: 2022-04-01
XCMG HYDRAULICS CO LTD
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Problems solved by technology
[0005] 1. The inner hole honing process mentioned in the patent cannot realize online detection and real-time compensation, and the operability is not strong;
[0006] 2. The inner hole honing process described in the patent is only applicable to a single valve body structure, and cannot solve the problem of stuck deformation of the spool hole after assembly and tightening. It is not suitable for honing the spool hole of the chip multi-way valve, which is not conducive to market promotion
Method used
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Embodiment Construction
[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0018] A multi-stroke and single-stroke compound honing process, comprising the following steps:
[0019] A. The spool hole of a single chip multi-way valve is honed by a multi-stroke honing process, and the spool hole of the chip multi-way valve forms a continuous pattern;
[0020] 1.1 Receive the valve body to be processed and the self-inspection record sheet, and confirm that the valve body has been roughly cleaned, otherwise return to the cleaning process;
[0021] 1.2 According to the product drawing number, call and confirm ...
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The invention discloses a multi-stroke and single-stroke composite honing process, which belongs to the technical field of valve core hole processing. Including the following steps: A. The spool hole of a single chip multi-way valve is honed by a multi-stroke honing process, and the spool hole of the chip multi-way valve forms a continuous pattern; B. A plurality of chip multi-way valves are connected, assembled and tightened; the valve core holes of the assembled chip multi-way valves are honed and reamed by a single-stroke honing process. The present invention is based on multi-stroke honing and single-stroke honing ream composite technology. Multi-stroke honing adopts an online measurement feedback system to build a mathematical model between parameters and errors, real-time feedback and compensation to control parameters such as speed and feed, and improve the accuracy of single honing ;Using the single-stroke honing technology to integrally repair and assemble the deformed valve body after tightening, through the double floating form of the cutter head and the fixture, the overall honing accuracy is improved, and the stuck problem caused by the assembly deformation of the valve core hole is solved, which has great advantages for hydraulic valve manufacturing peers Certain reference significance.
Description
technical field [0001] The invention relates to the technical field of valve core hole processing, in particular to a multi-stroke and single-stroke composite honing process. Background technique [0002] The precision machining scheme of the valve core hole in the same industry is multi-stroke honing or single-stroke honing. The two processes have their own advantages and disadvantages. Multi-stroke honing has advantages in ensuring the straightness of the valve hole, and single-stroke honing has advantages in ensuring the roundness of the valve hole. The degree of cylindricity has an advantage, and it is difficult to meet the design requirement of cylindricity of 3 μm when the two processes are used alone. For the multi-way valve, after the monolithic honed valve body is assembled, the super-large length-to-diameter ratio valve core hole is deformed due to the tightening torque, which reduces the matching accuracy of the valve stem and the valve core hole, causing the valv...
Claims
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IPC IPC(8): B24B33/02B24B33/06B24B33/10B24B41/06B24B51/00
CPCB24B33/02B24B33/06B24B33/105B24B41/06B24B51/00
Inventor 荆兴亚景军清邵宗光徐明
Owner XCMG HYDRAULICS CO LTD