1. The primary driving method of the precision press: the press is driven by a motor and is a pressure device for high-precision ball screws. The pressure is converted directly by the torque output of the motor. Generally, the press machine is driven by the motor oil pump, changes direction through the reversing valve, and then performs pressure operation through the hydraulic cylinder. The pressure passes through the oil pipe and the valve body, and there is a certain loss.
2. The professional precision press has energy saving and environmental protection: the press machine adopts the motor. When the machine is in standby mode, the motor does not spin. In addition, the speed and power also changed during the press equipment process. In a general press machine, the motor always rotates during standby, requiring a certain amount of power. It also rotates at a constant speed during the job, and the power consumption will be higher. Compared with the motor, the noise is also higher.
For precision presses, the process is generally divided into stages such as rapid release, work advance, pressurization, pressure holding, unloading, and return. The operating pressure and flow required for each stage are different. As far as the motor is concerned, the entire processing process is under changing load conditions. At present, most
hydraulic presses use a three-phase asynchronous motor to drive a constant power variable pump to supply power. Although it can achieve the effect of reducing the output flow beyond the set pressure value, During the entire operation process, the motor has been in normal operation. In fact, the motor-driven oil pump is not required to operate in the fast-loading, pressure-holding, and material-stopping and discharging conditions. If the motor is still in operation in this state, on the one hand, the electrical The waste of energy, on the other hand, also forms the circulation and overflow of the oil, which causes the rise of oil temperature, generates a lot of heat, and also forms the waste of energy.
How many possibilities does the press create in the future, and the difference compared with ordinary presses: the structure and technical characteristics of the press
1. Main structure: It adopts a desktop structure, which is simple and reliable, with strong bearing capacity and small bearing deformation. It is a stable and widely used bearing structure.
2. Press system composition: the main system composition of the equipment: press-fitting unit, control system, display, etc. The principle of pressing: the motor drives the fine ball screw through the synchronous belt to complete the azimuth control of the pressure spindle; the front end of the pressure spindle is equipped with a high-sensitivity pressure sensor, which can detect the load of the pressure spindle in real time; the control system collects the azimuth and load data in real time, thereby Complete online quality management technology for fine pressing.
3. The main components of the pressing unit are: driving equipment---driving transmission equipment---synchronizing wheel structure, fine ball screw (grinding grade). Pressure output---Pressure spindle (hard chrome plated). Bearing sets---ball bearings, self-lubricating bearings, etc. Pressure sensor---external type, beautiful structure, no interference of wires. Chassis---Sheet metal painting (computer white). Control system---closed loop control.
What kind of differences are there in the transmission relationship of the motor press-fitting press. The multi-link structure and flywheel brake belong to the configuration range of the mechanical CNC
hydraulic press. The multi-link adds an eccentric lever wheel mechanism in the gear transmission part, which can realize the slow down-pressing of the slider and the fast return function after the pressing is completed, and improve the production. efficiency. The flywheel brake is a structure for the large-scale CNC hydraulic press to quickly stop the flywheel. Due to the large diameter and weight of the flywheel of the large-scale CNC hydraulic press, the moment of inertia is also large, and there is no braking structure. Some flywheels may need to stop for more than 10 minutes. waste time. When maintaining the machine, the machine should be lubricated and maintained according to the lubrication requirements of the machine. After the machine tool works for every year, the hydraulic press should be released from the oil tank of the bed to clean the oil tank and refill the filtered hydraulic oil.
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