Combined machining tool and machining method of valve hole
A technology of composite processing and processing methods, which is applied in the manufacture of tools, accessories for tool holders, metal processing equipment, etc., can solve the problems of unsatisfactory surface roughness, local scratches, poor precision and surface, and reduce clamping Process, improve production efficiency, improve the effect of processing efficiency
Pending Publication Date: 2020-12-11
山西柴油机工业有限责任公司
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Problems solved by technology
The main disadvantages are as follows: the hardness of the seat hole reaches 45HRC-55HRC after heat treatment, and the forming grinding causes the valve hole to be in the state of grinding wheel abrasive grains, with serious local scratches, poor precision and surface;
[0003] After the valve hole is processed, the valve needs to be pressed into the valve hole for matching grinding, and this processing method will perform secondary micro-cutting on the formed processed surface, causing local irregular scratches and destroying the integrity of the processed surface At the same time, the grinding process will produce a certain tensile stress, which is not conducive to the improvement of the anti-fatigue performance of the valve hole, and the surface roughness of the machined surface does not meet the requirements of Ra0.4μm. Since the cutting and grinding process belong to the secondary positioning process, it is difficult to guarantee the processing Consistency, the valve and the valve hole are not interchangeable, which brings disadvantages to the assembly and later maintenance of the whole machine
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[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.
[0029] In describing the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than in...
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The invention relates to a combined machining tool and a machining method of a valve hole. The combined machining tool comprises a shaft handle, wherein a first tool is installed at the top of the axis of the shaft handle, and a second tool is installed on the side face of the shaft handle. According to the tool and the machining method, a valve and the valve hole are machined without matched grinding, and the production efficiency is improved.
Description
technical field [0001] The invention relates to a processing method for composite processing cutters and air valve holes. Background technique [0002] The cylinder head is composed of two intake / exhaust valve hole structures, and the forming grinding process requires alignment and alignment of the guide hole respectively. Valve hole forming grinding and then matching research process. The main disadvantages are as follows: the hardness of the seat hole reaches 45HRC-55HRC after heat treatment, and the forming grinding causes the valve hole to be in the state of grinding wheel abrasive grains, with serious local scratches, poor precision and surface; [0003] After the valve hole is processed, the valve needs to be pressed into the valve hole for matching grinding, and this processing method will perform secondary micro-cutting on the formed processed surface, causing local irregular scratches and destroying the integrity of the processed surface At the same time, the grin...
Claims
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Login to View More IPC IPC(8): B23B27/06B23D77/14B23P13/02
CPCB23B27/06B23D77/14B23P13/02
Inventor 端木学龙徐铮陈建军刘亚男柴建丽杨琼瑶李凯
Owner 山西柴油机工业有限责任公司