Multifunctional servo crank knuckle-lever press

Abstract

A multifunctional servo crank knuckle-lever press comprises a servo motor, a crankshaft, a connecting rod, a ram, a sliding block body and a control system, wherein the servo motor is connected with the crankshaft through a speed-reducing mechanism in a driving mode, a crank of the crankshaft is connected with a rotary bearing at the upper end of the connecting rod, the lower end of the connecting rod is hinged to the center of the ram through a bulb screw rod, and the ram is hinged to a symmetrical knuckle lever structure. The symmetrical knuckle lever structure is composed of a triangular connecting rod, an upper knuckle lever and a lower knuckle lever, wherein three angle ends end of the triangular connecting rod are respectively provided with a pin hole, are large semicircular column bodies, and are hinged to semicircular square bearing bushes arranged on an upper knuckle lever and a lower knuckle lever through pin shafts, and the upper knuckle lever and the lower knuckle lever are hinged to an upper support of a machine body and a lower support of the sliding block body respectively. According to the multifunctional servo crank knuckle-lever press, the servo control system controls the servo motor to drive the sliding block to make vertical reciprocating motion operations, different punching curves are achieved through preset control programs according to different processes, and multifunctional punching operations such as blanking, silent punching, tensioning and fine press forming and stamping are carried out.

Description

technical field [0001] The invention relates to a press, in particular to a multifunctional servo crank toggle press. Background technique [0002] Mechanical presses are the most widely used equipment in metal forming. Commonly used are crank presses, eccentric wheel presses and toggle presses. During work, the motor drives the flywheel to drive the slider to reciprocate through the clutch and the transmission mechanism. The movement curve of the slider is unchanged, which can only meet certain process requirements and has high working noise, high energy consumption, low precision, and adapts to various processes. Poor performance and other shortcomings. [0003] The toggle presses in the prior art are all composed of two toggle levers and a single link, which has certain limitations in reducing the torque of the main motor and increasing the force structure. [0004] For example, Chinese patent application No. 99103246.2 announced on June 19, 2002 a slider driving device...

AI Technical Summary

Problems solved by technology

It is said that when the slider moves up and down in the stroke, it relies on the action of the side connecting rod to prevent the slider guide rail from burning and rapid wear; and its upper toggle is a double arm crank, and the upper arm end passes through the eccentric shaft of the connecting rod and the crankshaft It is connected as a driving toggle, and its transmission mode is that the main motor drives the flywheel through a belt, and a common clutch brake is used to connect or disengage the flywheel from the drive shaft. The opening and closing of the clutch brake of this structure causes relatively large noise, and still have the above disadvantages

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