Application Case of Integrated Stepper Servo Motor in Laparoscopic Surgical Robot System
With the rapid development of minimally invasive surgical techniques, laparoscopic surgical robot systems have been widely used in the medical field due to their advantages such as precise operation, minimal trauma, and rapid recovery. Stepper motors, as the core actuators of mechatronic systems, play a crucial role in the positioning and control of surgical robots due to their high precision, lack of cumulative error, and simple control.
1. Equipment Introduction
The laparoscopic surgical robot system consists of three parts: the surgeon's operating table, the patient's surgical platform, and the image processing platform. The surgeon's operating table uses stepper motors to drive lead screw modules, enabling the horizontal and vertical movement of the equipment and assisting the surgeon in adjusting to the optimal operating position. Stepper motors convert electrical pulse signals into angular or linear displacement, achieving precise positioning and speed control. Their microstepping drive technology further optimizes operational smoothness, reduces vibration and noise, and is suitable for the high reliability requirements of medical scenarios.
2. Application Solution
1. Motor Selection and Integration
An integrated stepper servo motor, model STMP5756B-COE-MA-0FSB-04, is selected. It supports the EtherCAT communication protocol to ensure real-time control and high synchronization.
2. Function Implementation
The motor-driven lead screw module completes the horizontal and vertical positioning of the surgeon's operating table with an accuracy of ±0.1mm, meeting the stringent requirements for minute displacements during surgery.
3. Application Product
• Core Product: Integrated stepper servo motor (STMP5756B-COE-MA-0FSB-04), with the following characteristics:
Holding Torque: Ensures load capacity during low-speed operation, adapting to the inertial load during operating table adjustments.
Step Angle: Achieves micron-level positioning through microstepping drive adjustment of pulse equivalent.
Communication Protocol: EtherCAT enables multi-axis synchronous control, avoiding position loss.
4. Summary
1. Technological Value: Integrated stepper servo motors significantly improve the operational safety and efficiency of laparoscopic surgical robots through high-precision positioning, low-vibration operation, and intelligent control.
2. Application Prospects: With the deepening of mechatronics technology, the application of stepper motors in the field of medical robots will be further expanded, especially in areas such as multi-axis collaboration and force feedback integration, where there is great potential.
Case Study Implications: The innovative application of stepper servo motors not only solves the technical pain points in traditional medical equipment but also provides important support for the domestic substitution of high-end medical equipment.