The servo press machine adopts the servo motor as the direct power source and converts the driving force generated by the motor into the linear motion of the slider through screws, crank connecting rods and toggle levers. It uses the programmable control characteristics of the servo motor to perfectly control the movement form of the slider and meets the requirements of various stamping processes and intelligence. It has the advantages of controllable slider speed, easy manufacture of difficult-to-form materials, energy saving and environmental protection, multi-function, intelligent and so on. It is currently recognized as the third-generation punch press and is the mainstream trend in the development of the metal parts stamping industry.
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Servo presses are mainly used in production lines such as drawing, punching, bending, cold forging, stamping, etc., as well as try out punches. Due to the use of programmable control system, digital technology and feedback control method are used to achieve advanced precision control: the position of the punch slide can be controlled, and through the monitoring system and compensation control, the position of the slide can be repeatedly controlled with a precision of 0.01mm.
Since the movement mode can be edited through the program, the speed and trajectory of the slider can be controlled, the speed of the stamping area can be greatly reduced, the stamping noise and vibration can be reduced, the stamping working environment can be improved, and the service life of the die can be extended. At the same time, the output force of the slider can be controlled, and the control accuracy can reach 1.6% of the maximum output force of the slider.
Therefore, it is possible to form large covers made of high-strength steel sheets and aluminum alloy sheets in automobile manufacturing. Difficult-to-form materials such as magnesium alloys, aluminum alloys, and titanium alloys. Cooperate with mold design and peripheral system control to make new style materials easy to form.
1. The reduction ratio of the reduction mechanism is used to increase the speed required by the motor and reduce the torque required by the motor. Using the labor-saving linkage mechanism, the required power of the servo motor can be reduced to less than 40% of the direct drive type, to achieve the purpose of energy saving and power saving.
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2. The labor-saving connecting rod can effectively amplify the torque input by the servo motor (input end) through the special connecting rod angle and structure when the ability appears and meet the requirements of the stamping (output end) torque.
3. The flywheel and clutch brake are omitted, the structure is simplified, and the power consumption is greatly reduced. Energy saving can reach 30%~60%.
4. The speed of the slider can be controlled and adjusted during the stroke, so the slider is controlled to stop in the middle part of the stamping, thereby reducing the speed of entering the plate, thereby achieving the purpose of reducing noise. The noise reduction effect can reach about 10 decibels. In addition, it can reduce the impact of the sliding block entering during sheet metal forming, thereby prolonging the service life of the mold.
5. The stroke and speed of the slider can be adjusted at will, the forming action programmed near the bottom dead center can be set to low speed, and the speed before the stamping area and after the forming can be set to fast movement. In this way, even if the speed of the processing is reduced to the desired forming speed, the production efficiency can be increased by about 1/3 compared to the prior technology.
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