Two-degree-of-freedom mechanical controllable main movement mechanism of shaping machine

Abstract

The invention belongs to the fields of mechanisms and machine manufacturing and particularly relates to a two-degree-of-freedom mechanical controllable main movement mechanism of a shaping machine. The two-degree-of-freedom mechanical controllable main movement mechanism is characterized in that a ram of the main movement mechanism of the shaping machine is connected with a plane two-degree-of-freedom parallel mechanism through a connecting rod, the plane two-degree-of-freedom parallel mechanism is formed by two identical movement branch chains and is of a symmetric structure, each branch chain is a PRR (R represents a rotating pair and P represents a moving pair) branch chain and is driven by a servo motor, and each moving pair serves as the driving pair of the corresponding branch chain. The plane two-degree-of-freedom parallel mechanism is used for transmitting, combining and converting the input of the two sets of servo motors into single large-power output of the ram of the main movement mechanism of the shaping machine. The plane two-degree-of-freedom parallel mechanism has the mechanical coordination function, can eliminate movement interference caused by input errors of the two sets of servo motors, and reduces the control difficulty. The two-degree-of-freedom mechanical controllable main movement mechanism has the advantages of achieving controllability, flexibility and intelligence.

Description

Technical field: [0001] The invention belongs to the field of mechanics and mechanical manufacturing, and in particular relates to a main motion mechanism of a two-degree-of-freedom mechanical controllable planer. Background technique: [0002] Bullhead planer can be applied to the planing process of horizontal plane, vertical plane, inclined plane, straight groove, V-shaped groove, dovetail groove and straight generatrix forming surface, so it is widely used in the field of machinery manufacturing. In order to improve the quality of the machined surface, the ram should be required to move at a constant speed, but the main movement mechanism of the mechanical bull planer generally adopts a combined mechanism composed of a swing guide mechanism and a swing rod slider mechanism connected in series. The movement is a non-uniform movement, which brings difficulties to further improve the processing quality. [0003] In order to solve the above problems, the mechanism active con...

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