Lifting mechanical apparatus for workpiece and lifting mechanical arm thereof

Abstract

The invention provides a lifting mechanical apparatus for a workpiece. The lifting mechanical apparatus comprises a lifting mechanical arm and a manipulator arranged below a rocker arm of the lifting mechanical arm. The lifting mechanical arm provided by the invention comprises a column and the rocker arm connected to the column and capable of sliding up and down along the column; the lifting mechanical arm further comprises an oil cylinder drives the rocker arm to slide up and down, and a piston joint of the oil cylinder is hinged with the rocker arm. Through utilization of the oil cylinder for driving of lifting and dropping of the rocker arm, lifting and dropping of heavy stuff and controlling of lifting and dropping speeds are realized, and speed changing of such a structure is fast, so low-speed stable dropping of a plate is ideally realized. The lifting mechanical arm in the invention employs the oil cylinder as a driver for the lifting and dropping of the rocker arm, so lifting and dropping of heavy stuff and controlling of lifting and dropping speeds are realized, and low-speed stable dropping of the plate is ideally realized as speed changing of such a structure is fast. The oil cylinder is designed to be attached on the column, so switching of oil-ways of the oil cylinder is conveniently controlled, and inertial influence of a system does not exist; thus, the process of speed changing is fast and stable, and low-speed dropping of the plate is timely and ideally realized. The lifting mechanical apparatus for a workpiece can realize overturn of the workpiece on site and effective controllable dropping speed of the workpiece.

Description

technical field [0001] The invention relates to a mechanical assembly tool, in particular to a workpiece lifting mechanical device and a lifting mechanical arm thereof. Background technique [0002] At a certain station in the assembly line, products of relatively high quality often need to be turned over in situ in a timely, easy and accurate manner, and each turnover always needs to be accompanied by an indirect movement: that is, before turning over, the manipulator that has firmly grasped the workpiece must start from the Lift the pallet to an appropriate height, and then lower it in time after the flip is over, and put the product back on the pallet. During this period, if the speed is not well controlled when it is lowered to a height close to the carriage, the carriage will be subjected to excessive impact and damage. [0003] Traditionally, the mechanical equipment used for moving large-scale products on the assembly line uses a balance crane, which is equipped with...

AI Technical Summary

Problems solved by technology

Due to the inertia of the motor, the lowering speed of the cantilever crane cannot be changed in time, and the proper speed control cannot be achieved, which will cause impact on the carriage; there is no way to add a command switch to the lifting and lowering height positions, so that the highest rising point cannot be effectively limited ; The overall size is huge, the floor area and space occupied are large, and the support triangular plate is suspended above the operator, occupying a large space

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