● Machine structure part
Fuselage
It is the supporting structure of the entire servo hydraulic press, which is used to install and fix other components. The structure of the fuselage is diverse, the common ones are bow-shaped, four-column, frame-type, guide rail type, horizontal type, etc., and its structure is similar to the traditional mechanical punch, which has the advantages of simple and compact structure, small footprint and convenient operation.
Worktable
fixed in the lower part of the frame, as a platform for placing the workpiece to be machined, it needs to have sufficient strength and stability to withstand the pressure and impact during the machining process.
Moving plate: It can be moved within a certain range and is used to realize the relevant actions in the machining process, such as when machining some large workpieces, the moving plate can easily adjust the position of the workpiece.
Guide column
play the role of guide and support to ensure that moving parts such as moving plates or sliders can maintain accurate motion trajectory during movement and ensure machining accuracy.
Main cylinder
It is the core component that generates pressure, and through the pressure transmission of hydraulic oil, it pushes the piston or plunger to move, thereby exerting pressure on the workpiece. The main cylinder usually has piston cylinders and other types, and some main cylinders are also equipped with fast cylinders, which can realize fast downward and slow pressing to improve production efficiency.
● Dynamical system
Servo motor
As the power source of servo hydraulic press, it has the characteristics of fast response, high precision and wide speed regulation. The servo motor can accurately control the speed and torque according to the instructions of the control system, so as to achieve precise adjustment of the flow and pressure of the hydraulic system.
Oil pump
Usually driven by a servo motor, it converts mechanical energy into hydraulic energy to provide high-pressure oil to the hydraulic system. The performance of the oil pump directly affects the working efficiency and pressure stability of the servo hydraulic press, and the common oil pumps include gear pumps, vane pumps, etc.
● Hydraulics system
Hydraulic valves
including relief valves, reversing valves, throttle valves, etc., which are used to control the flow direction, pressure and flow of hydraulic oil, and realize various actions and functions of the hydraulic system. For example, the relief valve can overflow excess oil back into the tank when the system pressure exceeds the set value to ensure the safety of the system; The reversing valve is used to change the flow direction of the hydraulic oil so that the piston of the cylinder can achieve reciprocating motion.
Oil pipe
Used to connect various hydraulic components and convey hydraulic oil, which needs to have sufficient compressive strength and sealing to ensure the normal operation of the hydraulic system.
Oil tank
used to store hydraulic oil and provide oil source for the hydraulic system. The volume of the oil tank needs to be determined according to the working requirements of the servo hydraulic press and the design of the hydraulic system, and it also needs to be equipped with corresponding filtration devices, cooling devices, etc., to ensure that the cleanliness and temperature of the hydraulic oil are within the appropriate range.
● Electrical Control System
Controller
Generally, PLC (programmable logic controller) or other special controllers are used to receive signals from various sensors, such as pressure sensors, displacement sensors, etc., and according to the preset programs and algorithms, issue control instructions to control the speed and steering of the servo motor, as well as the switching action of the hydraulic valve, so as to achieve accurate control of the servo hydraulic press.
Sensor: including pressure sensor, displacement sensor, etc., which is used to monitor the working status of the servo hydraulic press in real time, such as pressure, displacement, speed and other parameters, and feedback these parameters to the controller so that the controller can adjust and control it in real time.
Human-machine interface: usually a touch screen or operation panel, which is convenient for operators to input processing parameters, set working modes, monitor the operation status of equipment, etc., and has the characteristics of simple operation, intuitive and easy to understand.
● Machine assist devices
Safety devices
Such as safety gratings, emergency stop buttons, etc., are used to ensure the personal safety of operators, and can stop the operation of the equipment in time when the servo hydraulic press is abnormal.
Cooling device
Since the servo hydraulic press will generate heat during the working process, in order to ensure that the temperature of the hydraulic oil is within the appropriate range, it needs to be equipped with cooling devices, such as radiators, cooling fans, etc.
Lubrication device
It is used to lubricate the moving parts of the servo hydraulic press, reduce wear and extend the service life of the equipment.
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