Combined machine tool for drilling oil hole of connecting rod and cutting big-head hole of connecting rod

Abstract

The invention discloses a combined machine tool for drilling an oil hole of a connecting rod and cutting a big-head hole of the connecting rod, and the machine tool comprises a machine platform, a cutting mechanism, two sets of drilling mechanisms and a positioning fixture, wherein the positioning fixture and the drilling mechanisms are arranged on the surface of the machine platform; the cutting mechanism is in sliding connection with the surface of the machine platform; an oil cylinder is used for driving and controlling the cutting mechanism to slide on the surface of the machine platform; a to-be-processed connecting rod is fixed on the positioning fixture; a rotating head of the cutting mechanism is fixed with a saw bit; the saw bit is aligned with a cutting position of a big-head hole of the connecting rod; the cutting mechanism is used for driving the saw bit to cut and move along the preset cutting position of the big-head hole; drilling bits are arranged on the drilling mechanisms; and the drilling bits respectively do feed motion along preset oil hole drilling positions on the big-head hole and a small-head hole of the connecting rod. The invention provides a device combined with two processes of drilling the oil hole for the connecting rod and cutting the connecting rod; the operation of repeatedly clamping the connecting rod during a processing process is avoided; the relative stability of the position of the oil holes on the connecting rod is realized; the device is convenient in operation; and the production efficiency of products is increased.

Description

technical field

[0001] The invention relates to the field of metal processing, in particular to a combined machine tool for drilling oil holes for processing connecting rods and cutting big holes. Background technique

[0002] The connecting rod is an important part in the automobile engine. It connects the piston and the crankshaft. Its function is to convert the reciprocating motion of the piston into the rotational motion of the crankshaft, and transmit the force acting on the piston to the crankshaft to output power. The two ends of the connecting rod are respectively provided with a big head hole and a small head hole. During the processing, the big head hole needs to be cut to form the rod body and the rod cover; and because the connecting rod needs to be continuously lubricated during the movement, it must be installed in the big head hole and the rod cover. Oil holes are drilled separately on the small head holes; in the traditional connecting rod processing process,...

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