Multi-process step machining combined machine tool for tappet holes of engine

Abstract

The invention discloses a multi-process step machining combined machine tool for tappet holes of an engine, which comprises a bed body, wherein a cylinder body feeding workbench is arranged at the lower side part of the bed body; a guide rail in the up and down direction is arranged on the bed body, a headstock which can move up and down is mounted on the guide rail, a row of expanding and boringcutters corresponding to the tappet holes of cylinder bodies, a row of boring and reaming cutters corresponding to the tappet holes of cylinder bodies and a row of honing cutters corresponding to thetappet holes of cylinder bodies are sequentially mounted at the lower part of the headstock, and a headstock lifting device is mounted on the bed body; and machining positioning devices are respectively arranged on the cylinder body feeding workbench corresponding to the expanding and boring machining stations and the boring and reaming machining stations. By adopting the multi-process step machining combined machine tool, the traditional machining process is improved, and the machining quality is greatly improved; the tappet holes of three cylinder bodies can be simultaneously machined, and the machining efficiency can be greatly improved; and the expanding and boring machining precision and the boring and reaming machining precision can be further improved by arranging the machining positioning devices.

Description

technical field [0001] The invention relates to a combined machine tool, in particular to a combined machine tool for processing tappet holes of an engine. Background technique [0002] On the engine, the tappet is the follower of the cam. Its function is to transmit the motion and force from the cam to the push rod or valve, and at the same time bear the lateral force exerted by the cam and transmit it to the bed or cylinder head. [0003] The cylinder block is used as the installation support body for the cam and the stand, and is provided with a tappet hole and a camshaft hole respectively. In order to ensure the tappet to work reliably, the tappet hole and the camshaft hole have a strict positional relationship, and the size of the tappet hole The requirement of tolerance and position is high, and the number of tappet holes is large. Processing with traditional technology requires reaming machine tools, boring machine tools and reaming machine tools to complete the proc...

AI Technical Summary

Problems solved by technology

[0003] The cylinder block is used as the installation support body for the cam and the stand, and is provided with a tappet hole and a camshaft hole respectively. In order to ensure the tappet to work reliably, the tappet hole and the camshaft hole have a strict positional relationship, and the size of the tappet hole The requirements for tolerance and position are high, and the number of tappet holes is large. Processing by traditional technology requires reaming machine tools, boring machine tools and reaming machine tools to complete the processing. The processing accuracy is low and it is not easy to form mass production.

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