Boring machine for irregularly-shaped holes of connecting rod

Abstract

The invention discloses a boring machine for irregularly-shaped holes of a connecting rod. The boring machine comprises a first boring mechanism and a second boring mechanism, wherein the first boring mechanism and the second boring mechanism are arranged on a machine body in parallel; a connecting rod fixture is arranged on the machine body; the second boring mechanism and an elliptical adjusting mechanism are arranged in a mutually cooperative manner; and the elliptical adjusting mechanism comprises a driving part and a driven part, the driven part is fixedly connected with the second boring mechanism, the driving part operates to drive the driven part to rotate, so that the axis of the second boring mechanism deviates, the connecting rod fixture drives the connecting rod to be fed, and machining of the irregularly-shaped holes is finished. By means of the first boring mechanism cooperating with a big-end hole of the connecting rod and the second boring mechanism cooperating with a small-end hole of the connecting rod, machining of the big-end hole and the small-end hole of the connecting rod can be finished after one time of positioning and clamping. By means of cooperative arrangement of the elliptical adjusting mechanism at the second boring mechanism cooperating with the small-end hole of the connecting rod, the axis of the second boring mechanism can deviate under driving of the elliptical adjusting mechanism, and an elliptical hole can be machined during feeding of the connecting rod driven by the connecting rod fixture.

Description

technical field [0001] The invention relates to a connecting rod special-shaped hole boring machine. Background technique [0002] The connecting rod connects the piston and the crankshaft, and transmits the force acting on the piston to the crankshaft, converting the reciprocating motion of the piston into the rotational motion of the crankshaft. Hole processing is a semi-closed cutting, so chip removal, heat transfer and cutting fluid pouring are difficult, and the processing is more difficult. In recent years, in engine parts, the requirements for the accuracy and surface roughness of the holes have been gradually increased, and the requirements for the shape of the holes have also been increased. However, the processing of some holes has become a production bottleneck and needs to be solved urgently. [0003] It is difficult to finish the special-shaped hole in the machining of the small head hole of the connecting rod. Due to the shape of the special-shaped hole, it is...

AI Technical Summary

Problems solved by technology

Spindle precision is low, belt vibration is unavoidable

It is especially pointed out that this type of machine tool only processes connecting rods with small head holes and straight holes, and cannot complete the processing of connecting rod products with special-shaped holes.

Images