Automatic eccentric machining device for crankshaft

Abstract

The invention provides an automatic eccentric machining device for a crankshaft. The automatic eccentric machining device comprises a main body shell. The main body shell is internally provided with amovable clamping mechanism, and the movable clamping mechanism includes three pushing mechanisms. The output ends of the pushing mechanisms are provided with moving bodies, pushing locking mechanismspenetrate through the centers of the moving bodies, and the tail end of each pushing locking mechanism is provided with a counterweight mechanism. The counterweight mechanisms are used for balancingthe centrifugal force when an eccentric part rotates. When the device is used, the device is mounted on a main shaft of a machine tool, the crankshaft is locked through the pushing locking mechanisms,the moving bodies are pushed through the three pushing mechanisms inside to drive the whole pushing locking mechanisms to adjust the positions in three directions, and thus the to-be-machined position of an eccentric workpiece is moved to the center position; and it is guaranteed that a milling cutter of the machine tool is in contact with the machining surface of the workpiece for machining, theworkpiece does not need to be disassembled continuously, the consistency of the position of the workpiece is guaranteed, and the precision and efficiency of machining are greatly improved.

Description

technical field [0001] The invention relates to the field of machining equipment, in particular to a crankshaft automatic eccentric machining device. Background technique [0002] The crankshaft is the most important component in the engine. It bears the force transmitted by the connecting rod and converts it into torque through the crankshaft output and drives other accessories on the engine to work. The crankshaft is subjected to the joint action of the centrifugal force of the rotating mass, the periodically changing gas inertial force and the reciprocating inertial force, so that the crankshaft is subjected to the bending torsional load. [0003] Machining in the prior art is usually a cylindrical milling cutter to process the workpiece, but when machining eccentric parts, such as figure 1 The parts shown usually have multiple discs arranged eccentrically. If the traditional processing method is used, the parts to be processed need to be disassembled continuously, but ...

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Problems solved by technology

[0003] Machining in the prior art is usually a cylindrical milling cutter to process the workpiece, but when machining eccentric parts, such as figure 1 The parts shown usually have multiple discs arranged eccentrically. If the traditional processing method is used, the parts to be processed need to be disassembled continuously, but the position of the parts will be uncontrollable during the continuous disassembly process. changes, which eventually lead to low machining accuracy of the parts and cannot meet the machining requirements

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