Servo press with main motor translational symmetrical toggle with fast empty stroke and slow speed boost

Abstract

The invention discloses a rapid-idling slow-pressurizing main motor horizontal moving type servo press with symmetrical toggle rods. A transmission shaft of an idling device is driven by a servo motor through a small belt wheel and a big belt wheel to rotate, worms are machined on the two sides of the transmission shaft, a worm gear is driven by the worms to rotate, and a first nut on the worm gear is also driven to rotate, so that a transmission lead screw is made to move downwards; during nominal-pressure running, an biaxial stretching type main shaft is driven by a main servo motor composed of a motor rotor, a permanent magnet and a motor stator, a main piston is driven through a transmission structure to move towards the left side and the right side, and nominal-pressure running is completed through boosting of the upper toggle rod and the lower toggle rod; proper nominal pressure and a low pressing speed can be generated, and the horizontal force generated by the symmetrical toggle rods can be balanced through the biaxial stretching type main shaft; the overall weight of an intermediate mechanism is balanced by means of a balancing piston, so that errors caused by deformation generated due to mechanism gravity are reduced; the rapid-idling and slow-pressurizing running way is adopted, and the structure is simple.

Description

technical field [0001] The invention relates to the technical field of servo presses, in particular to a servo press with fast idle stroke and slow speed boosting main motor translational symmetrical toggle. Background technique [0002] The press machine is a general-purpose press machine with exquisite structure. It has the characteristics of wide application and high production efficiency. It can be widely used in cutting, punching, blanking, bending, riveting and forming processes. The pressure causes the metal to deform plastically to machine the part. The traditional mechanical presses all adopt the crank-slider mechanism. When working, the asynchronous motor drives the flywheel through the V-belt, and the crank-slider mechanism is driven by the gear pair and clutch, so that the slider and the punch go down in a straight line to complete the stamping. The stamping stroke and idle stroke of this mechanical structure are inseparable, resulting in a large waste of energy...

AI Technical Summary

Problems solved by technology

The stamping stroke and idle stroke of this mechanical structure are inseparable, resulting in a large waste of energy in the idle stroke, and due to the limitations of the crank slider mechanism itself, it is difficult to adjust the stroke and generate a large eccentric force

In addition, due to the inseparable stroke, the stamping process also maintains a high stamping speed, which is very unfavorable to sheet metal forming, and has gradually failed to meet the requirements of high-speed flexible stamping

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