Double-drive toggle rod mechanism for servo mechanical press and control method thereof

Abstract

The invention relates to a double-drive toggle rod mechanism for a servo mechanical press and a control method thereof. The double-drive toggle rod mechanism comprises a first crank, a second crank, a first connecting rod, a second connecting rod, a first toggle rod, a second toggle rod and a third toggle rod, wherein one end of the first crank is connected with a body to form a rotary pair, the other end of the first crank is connected with one end of the first connecting rod to form a rotary pair, the other end of the first connecting rod is connected with one end of the first toggle rod and one end of the second toggle rod to form a rotary pair, the other end of the second toggle rod is connected with the body to form a rotary pair, one end of the second crank is connected with the body to form a rotary pair, the other end of the second crank is connected with one end of the second connecting rod to form a rotary pair, the other end of the second connecting rod is respectively connected with the other end of the first toggle rod and one end of the third toggle rod to form a rotary pair, the other end of the third toggle rod is connected with a sliding block to form a rotary pair, and the sliding block is arranged on a body guide rail to form a moving pair. By adopting the double-drive toggle rod mechanism, the performance and adaptability of the press can be improved, and the torque and instantaneous power of a single drive motor can be reduced.

Description

technical field [0001] The invention relates to a driving toggle mechanism for a mechanical press, in particular to a double-driving toggle mechanism for a servo mechanical press and its control method, and belongs to the innovative technology of a driving toggle mechanism for a servo mechanical press and its control method . Background technique [0002] The mechanical press is an important metal forming equipment, and it is also one of the most important mechanical equipment. The toggle mechanical press is one of the main types. The toggle mechanical press has the characteristics of slow working stroke speed, large force ratio, long time for the slider to hold pressure at the bottom dead point, and good rigidity of the machine body. It is suitable for metal precision press forming or extrusion forming, and is widely used in machinery , automobiles, instrumentation and other industries. [0003] The schematic diagram of the working mechanism of the traditional toggle mec...

AI Technical Summary

Problems solved by technology

However, under the action of constant driving torque, the forming force in the engineering pressure stroke does not increase monotonously; and the bottom dead center of the press is fixed, and the change of the movement mode of the slider can only be adjusted by the change of the servo motor drive. The variety of movement modes and the pressure The functionality of the machine is still limited

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