The hydraulic automatic loading and unloading manipulator is a workpiece handling mechanical equipment widely used in automated assembly lines, and it is an indispensable transportation unit in assembly line operations. According to whether the working medium is oil or water (emulsion), hydraulic presses can be divided into two types: hydraulic press and hydraulic press, hydraulic manipulators using oil as the medium. The main action that the hydraulic manipulator requires the hydraulic system to complete is (laying the workpiece horizontally): the boom is lowered by 300mm-the workpiece is clamped-the wrist is turned up by 90°-the boom is raised by 300mm-the boom is rotated by 90°-the arm is extended by 500mm-the workpiece is relaxed-the arm Retract 500mm—turn the wrist down 90°—turn the big arm 90° and lower the big arm 300mm. To complete all actions in the entire cycle, five hydraulic cylinders must be coordinated. Among them, two rotary hydraulic cylinders and 3 piston hydraulic cylinders.
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