Application of servo press

Pressure assembly is a common process in mechanical automation. Especially in the automobile and auto parts manufacturing industry, the assembly of rolling bearings, bushings and other parts is completed by pressing. Bearing press mounting is a common and practical type of servo calender. Bearing is a moving part, and the effect of press mounting directly affects the performance and life of vehicles or product equipment. The traditional press equipment is driven by hydraulic pressure or air pressure, which can not effectively control the pressure and displacement of the press equipment during the press process, resulting in instantaneous overload of the press force, resulting in bearing seizure or inflexible rotation.

The servo press is driven by a high-precision ball screw servo motor, and the precise position of the pressure head is controlled by controlling the rotation angle of the motor. A high sensitivity pressure sensor is installed at the front end of the pressure head to collect pressure in real time and realize pressure closed-loop control. The online quality judgment and data information management of precision pressing are realized by high-speed acquisition of position pressure data in the pressing process. Precise pressure and displacement control. Determination of on-line stamping quality. Display according to the loading process curve. Realize the multi-purpose and flexible assembly of the machine.

Servo press mounting system is usually composed of press mounting module (also called press mounting spindle), servo amplifier and force displacement evaluation unit. At the same time, a process monitoring system is equipped to monitor the process quality. Based on the data of force and displacement sensors, the force displacement (XY curve) generated during the press assembly and assembly process is systematically evaluated and recorded. In addition to process monitoring, the process can also be controlled in real time. For this purpose, the servo pressure installation system provides standard functions, such as pressure installation force control, slope and inflection point detection, and pressure installation based on signal or position.

The servo press controller realizes the data transmission in the control process; The LCD touch screen is used as the user interface to set the pressure value and displacement value, display the displacement and pressure change curve during pressing, and monitor the pressure change during pressing. It is said that the A-stage compressor head has just contacted the installed components or auxiliary equipment, and the B-stage compressor parts have been pressed in place. However, it can be seen from the displacement diagram of the press press equipment installation that the displacement will not change after the parts are installed in place, while the pressure being pressed is increasing. In this case, if the pressure being pressed exceeds the parts or cannot bear the pressure, the parts may be crushed, Especially the stamping process of transmission bearing. In this case, we must take measures to control the pressing process and ensure the assembly quality of product parts.

Application field:

1. Automobile industry: press mounting of engine components (cylinder head, cylinder liner, oil seal, etc.), steering gear components (gear, pin shaft, etc.), transmission shaft components, gearbox components, brake disc components, etc.

2. Motor industry: motor, motor, bearing, water pump, rotor, stator, press mounting of micro motor components (spindle, shell, etc.), and press mounting of motor components (bearing, spindle, etc.).

3. Electronics industry: computer, communication, electronics, circuit board component press mounting (plug-in, etc.), electronic parts press mounting.

4. Home appliance industry: press fitting of home appliance accessories, riveting of home appliance accessories, etc.

5. Machinery industry: press fitting of mechanical parts, automatic assembly line, life test of wearing parts, etc.

6. New energy industry: lithium battery, hydrogen fuel cell (stack, bipolar plate, membrane electrode, proton exchange membrane) press mounting.

7. Aerospace military industry: press fit of aerospace engine parts.

8. Scientific research institutions: calibration, molding, pressure testing, etc.

9. Other industries: other occasions requiring precision CNC press displacement and press force.