Servo press machine using symmetrically-arranged multi-end-face cams for driving even number of independent toggle rods

Abstract

The invention discloses a servo press machine using symmetrically-arranged multi-end-face cams for driving an even number of independent toggle rods. The servo press comprises an upper machine body and a lower machine body. Two servo motors are symmetrically mounted on the upper machine body. Output shafts of the servo motors transmit rotation to transmission shafts through small belt wheels, synchronous belts and big belt wheels. Small gears on the transmission shafts are engaged with teeth machined on the outer sides of driving end face cams, and the driving end face cams are matched with driven end face cams. The driven end face cams are supported on supporting shafts through sliding bearings and are connected with push rods, and the push rods are connected with upper connecting rods and lower connecting rods through oscillating bars. The lower connecting rods are connected with the upper ends of guiding plunger type connecting rods, the lower ends of the guiding plunger type connecting rods are connected with adjusting screws, and the lower ends of the adjusting screws are connected with a sliding block. A lower die fixed on the lower machine body is matched with the sliding block so that forging and pressing work can be conducted. According to the servo press machine, forming of the sliding block and the running speed of the working stroke and the idle stroke can be controlled by setting the space motion trails of the push rods in the end face cams; the structure is compact, the bearing capacity is high and the working characteristics of the motors are improved remarkably.

Description

Technical field [0001] The invention belongs to the technical field of presses in mechanical forming equipment, and specifically relates to a symmetrically arranged multi-end face cam driving an even number of independent toggle-type servo presses. Background technique [0002] The servo press has high machining accuracy, can achieve precise control and high production efficiency. The body of the servo press needs to withstand the forces and moments generated during the machining process, and is the basis for installing other components of the servo press, so it needs to have sufficient strength and rigidity. At present, in the existing servo presses at home and abroad, the rotational movement of the motor is reduced by the nut screw or screw nut mechanism into the linear reciprocating movement of the slider, thereby realizing the forging function. The transmission chain of the servo press with this structure is too long and complicated, so it is difficult to process and assembl...

AI Technical Summary

Problems solved by technology

The transmission chain of the servo press with this structure is too long and complicated, so it is difficult to process and assemble and the transmission efficiency is low

At the same time, the up and down movement of the slider requires the motor to start and stop frequently and to rotate forward and reverse, which makes the motor work in a state of low efficiency for a long time

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