Working Characteristics of Servo Press and Its Application Effect
In recent years, with the development of technology, the market demand for high-precision, high-quality and low-price products is increasing, the materials used to manufacture products are becoming more and more abundant, and the international competition in the manufacturing industry is becoming increasingly fierce. Due to the emergence of new materials and the complexity of product shapes, the manufacturing industry has an increasing demand for presses that can process composite materials and difficult-to-process materials with high precision. An important feature of the servo press is that it can arbitrarily adjust the stroke, moving speed, stop position and pressure time of the slider under the control of the computer according to the requirements of the forming process, and also has a composite processing function. Servo presses are high value-added plastic processing equipment.
Crank connecting rod typeservo pressProcessing work characteristics
The transmission method of the traditional crank-type connecting rod press is mainly to convert the slider into linear motion through the rotation of the motor, the clutch and the crankshaft connecting rod mechanism. Since the motor cannot be started and stopped frequently at will, the rotation speed cannot be changed at will. The slider can only move in the positive direction and move up and down in a certain range of travel and the number of strokes. Forservo press, The small crank connecting rod servo press as shown in the figure is characterized by no flywheel and clutch. The servo electric machine drives the crank connecting rod mechanism through one-stage gear, and the movement speed and position of the sliding block can be controlled arbitrarily and accurately. Because there is no clutch and flywheel, its structure is much simpler than traditional presses, and the maintenance cost is only 60 of traditional presses.
For Pulse 2, low/high-speed re-rotation processing can be used in the processing field, which can reduce the impact marks in the molding process and improve the quality, thereby reducing the processing load and increasing the life of the mold. In the stamping process, the fracture phenomenon can be slowed down, thereby reducing the processing noise.
Noise reduction effect
As shown in the figure, the slider can be controlled to reduce the movement speed at the moment when the material starts to break after being punched, which not only does not greatly reduce the productivity, but also can realize the punching processing with low noise, and as shown in the figure, if the slider vibrates at the same time, the noise is reduced.
Eliminating the burr of blanking parts is the eternal subject of how to reduce or completely eliminate the fracture of blanking workpieces in blanking processing. On the servo press, as long as a blanking die provided with a reverse punch device is used, the sliding program motion mode can be used as shown in the figure.
Photo of cut section
The effect of deep drawing and thinning deep drawing experiments.
The drawing die for cylindrical parts has a punch on the lower die and a punch diameter of 60mm. The inner diameter of the concave die is 61.6mm; The fillet radius is 5mm; The processing material is a1050 pure aluminum plate. The plate thickness is 0.6mm. The blank holder is connected with the pneumatic die pad on the workbench through the ejector rod. In work, the blank holder and the female die are always pressed against the flange of the workpiece. The mold with concave mold on the upper mold base is driven by the servo press slider, and the pulse motion mode is repeated up and down during the descent.