A finishing tappet hole honing tool and processing method

A processing method and tappet hole technology, which are applied in the field of tools for finishing tappet holes, can solve the problems that the tool rigidity and structural strength are difficult to meet, the coaxiality cannot meet the requirements, and the center position cannot be guaranteed, and achieve automatic The effect of adjusting the knife, easy to operate, and preventing eccentric grinding
CN105773392BActive Publication Date: 2018-05-01GUANGXI YUCHAI MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGXI YUCHAI MASCH CO LTD
Publication Date
2018-05-01

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Abstract

The invention discloses a tappet hole finish machining honing cutter. The tappet hole finish machining honing cutter comprises a honing rod of a hollow structure. A honing base welding a honing strip is arranged at one end of the honing rod. Round springs used for pressing the honing base are arranged at the two ends of the honing base. A connecting rod which is connected with a machine tool and is of a hollow structure is arranged at the other end of the honing rod. The end of the honing rod stretches into an inner cavity of the connecting rod and is in flexible connection with the connecting rod through a limiting spring. An adjusting mechanism penetrating the inner cavity of the honing rod and pushing the honing base to change in the radial direction is arranged in the honing rod. The invention further discloses a tappet hole finish machining method. The tappet hole finish machining honing cutter is simple in structure and convenient to operate, a tappet hole is machined through the cutter arranged to be of a split structure, the machining quality is stable, the cost is low, and the quality of products is effectively improved.
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Description

technical field

[0001] The invention relates to the technical field of diesel engine machining, more specifically, it relates to a tool and method for finishing tappet holes. Background technique

[0002] The diameter of the tappet hole of the gray iron 250 diesel engine is generally large, Φ32mm, and the length is about 50mm. The requirements for the hole diameter accuracy, roughness and coaxiality are relatively high. At the same time, taking into account the manufacturing cost, the machining quality of the tool for finishing the tappet hole is required to be stable, and the cost of the tool for a single product is low. The processing of the tappet hole generally goes through the precast through hole of the tappet hole and the machining process. The machining process includes three processes of rough machining, semi-finishing and finishing. At present, in the process of machining the tappet hole, the tools are mostly solid carbide multi-blade reamers, single-blade gun rea...

Claims

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