Dalian Servo Press Fitting Machine Working Principle Disassembly: Core Technical Logic of Precision Press Fitting

Dalian Servo Press Fitting Machine Working Principle Disassembly: Core Technical Logic of Precision Press Fitting

In the field of precision manufacturing, servo press machines have become core equipment in industries such as automotive components, electronic parts, and new energy batteries, thanks to their precision control capabilities far surpassing those of traditional hydraulic and pneumatic press machines. The core advantage of their precise pressing stems from the "servo control + closed-loop feedback" technical architecture, enabling full-chain precise control from power output to execution terminals. Below, we will dissect the key logic of their working principles from the perspective of core component coordination mechanisms.

The power core of the Dalian servo press machine is the servo motor, which differs from traditional press machines with constant power output. The servo motor can receive pulse signals via the servo drive, enabling precise adjustment of speed and torque. Once the equipment is activated, the control system sends commands to the servo drive based on preset press parameters (such as pressure value, pressing stroke, and pressing speed). The drive converts electrical energy into mechanical energy, driving the rotation of the ball screw. The primary function of the ball screw is to convert rotational motion into linear motion, and its high-precision transmission characteristics ensure zero backlash during power transfer, laying the foundation for press accuracy.

The key to precise control lies in the "closed-loop feedback" mechanism. The pressure and displacement sensors installed on the equipment collect real-time data on pressing force and piston displacement during the process, transmitting the data synchronously to the control system. The control system compares the real-time data with preset parameters and, if deviations occur, immediately sends correction commands to the servo drive. For instance, when the pressing force exceeds the preset threshold, the system instructs the servo motor to decelerate or even halt; when displacement accuracy deviates from the set value, the motor adjusts its speed to compensate for the deviation, achieving dynamic balance among "pressure-displacement-speed.".

Additionally, the control system of Dalian's servo press-fitting machine features parametric programming capabilities, allowing for the presetting of multi-stage press-fitting curves tailored to the requirements of different workpieces. During the initial phase, the motor drives the press head at a relatively high speed to approach the workpiece, enhancing efficiency. Upon contact, it automatically switches to a low-speed, high-pressure mode to prevent impact damage to the workpiece. After press-fitting is completed, the system smoothly returns and records the data. This intelligent process control, combined with the rapid response capability of the servo system (response time typically in milliseconds), achieves an upgrade from "coarse press-fitting" to "precise and controllable," meeting the stringent requirements of precision manufacturing for consistent press-fitting quality.