The connecting rod is one of the main driving medium of diesel engine, it is connected to the piston and the crankshaft, it’s role is to the reciprocating piston movement into rotary movement of the crankshaft, and the of the force in the piston to the crankshaft to the output power. When working, the connecting rod not only support the pressure from the gas chamber, but also bear the vertical and horizontal inertia force. Therefore the connecting rod works in a complex environment .The main damage of the connecting rod is fatigue and excessive deformation . The working conditions of the connecting rod require it has higher strength and fatigue performance, and has enough rigidity and toughness. The precision of size, the precision of profile and the precision of position , of the connecting rod is demanded highly , and the rigidity of the connecting rod is not enough, easy to deform, so arranging the craft course, need to separate the each main and superficial thick finish machining process. Reduce the function of processing the surplus , cutting force and internal stress progressively , revise the deformation after processing, can reach the specification requirement for the part finally . This text expounds mainly the machining technology and the design of clamping device of the connecting rod.
Keyword: connecting rod ，deformation ，processing technology ，design of clamping device
