Method for processing timing gear chamber

Abstract

The invention discloses a method for processing a timing gear chamber. The method sequentially comprises the following steps of: (1) performing rough mill on the main surface of the gear chamber by using a milling machine; (2) performing rough mill on the installation surface of the gear chamber; (3) performing finish milling on the main surface of the gear chamber; (4) performing finish milling on the installation surface of the gear chamber; (5) refining the installation surface of the gear chamber in the processing center, wherein two installation holes between which the distance is farthest on the installation surface are taken as positioning basic holes; and processing all holes at the periphery of the gear chamber; (6) refining the main surface of the gear chamber in the processing center, drilling a central hole and a bottom hole, chambering, tapping, performing rough boring on all holes, and performing finish boring on all holes; (7) milling the top surface of the gear chamber; (8) milling the side of the gear chamber; (9) milling the bottom of the gear chamber; (10) drilling and tapping the top hole of the gear chamber, chambering an orifice, and tapping; (11) drilling and tapping the side of the gear chamber, drilling the side hole and countersinking; (12) performing secondary drilling on the side hole of the gear chamber, chambering and tapping; and (13) cleaning and pressuring. The method for processing the timing gear chamber has high production efficiency, and the produced gear chamber has high accuracy and consistency.

Description

Technical field: [0001] The invention relates to a processing technology of mechanical parts, in particular to a processing method of a timing gear chamber. Background technique: [0002] As a hollow body, the timing gear chamber is generally arranged at the front end of the engine. The crankshaft gear, cam gear, fuel injection pump gear, air compressor gear and other diesel engine gear trains are enclosed in the cavity, and the movement of the internal components of the engine is realized through gear transmission. . The rationality and reliability of its structure have an important impact on the economy, reliability and noise reduction of the engine. Therefore, the processing accuracy of the timing gear chamber directly affects the quality of the diesel engine's complete vehicle installation and the reliability of the diesel engine's operation. At present, the processing method of the timing gear chamber is: the main engine factory provides the processing drawings and bl...

AI Technical Summary

Problems solved by technology

At present, the processing method of the timing gear chamber is: the main engine factory provides the processing drawings and blanks, according to the requirements of the drawings, the rough machining is positioned at the blank positioning point, and all dimensions are established with the coordinate dimensions of the center of a hole фA. This hole needs to be processed, and the reference hole is processed first. фA and auxiliary hole ΦB are positioned by these two holes to process other holes, the processing efficiency is low, the size of each processing is uneven relative to the shape of the blank, and the accuracy is inconsistent, and the assembly efficiency is low

In addition, special equipment is required to process a timing gear tooth, and the equipment for processing different gear chambers cannot be unified, resulting in high processing costs