Application of Integrated Electric Clamp in Medical Catheter Grabbing

With the continuous development of science and technology, the application of electric grippers in the medical field is gradually increasing, one of which is the application of tube grasping. As a modern tool, the electric gripper has the characteristics of precision, high efficiency and reliability, which provides better operation experience and experimental results for medical treatment.

01. Introduction

in the previous automation equipment, the operation of pipe clamping is often realized by a clamp with a single clamping function and a series of peripheral rotating mechanisms, which occupies a large space, is inconvenient to use and control, and has compatibility problems with different sizes of pipes. The problem of torque coverage is prominent.

In view of this industry pain point, combined with its own product advantages, 2022 launched a stepper servo motor, rack and pinion transmission mechanism, claw head in one of the electric claw (NFM series), can greatly improve the efficiency and accuracy of medical tube capture.

First of all, under the trend of continuous improvement of integration and automation efficiency, equipment space is extremely valuable, and the integrated electric fixture itself is integrated with the STM28 series integrated stepping servo motor, which has the characteristics of small size and simple structure.

At the same time, the pliers can be customized according to user needs, which greatly increases the adaptability of its application and meets the needs of high-speed and stable clamping in a narrow space.

Secondly, the electric gripper has accurate gripping ability, and its gripping force, position, gripping speed and stroke are adjustable. The electric claw can be automatically adjusted according to the size and shape of the test tube through a precise control system, so as to achieve accurate grasping. In this way, not only the accuracy of the operation can be improved, but also the risk of pipe damage can be reduced.

In addition, the electric fixture has alarm functions such as drop detection and turning state feedback, while supporting control modes such as position, speed, torque, etc., supporting CANopen,Modbus,I/O,PWM.

For electric fixtures, we have also specially developed software functions, recorded and produced a series of tutorials (constantly updated) for debugging reference, which greatly improves the convenience of equipment applications.

02. Application Scheme

by installing the motorized gripper device, the manufacturer's organization realizes the automated transfer from the test tube storage box to the inspection department.

Contour Position Mode/Contour Torque Mode/Origin Regression Mode

three motors are controlled by a single-chip microcomputer. One motor drives the tray to move. One motor lifts the disc in the tray in torque mode. One motor uses friction to move the disc at 15 ° and return to the origin. Therefore, the 24 on the disc The holes are facing the spectral sensor.

characteristic]

bus control: Support CANopen/Modbus communication, which can flexibly correspond to the communication protocol used by users and shorten the system design time.

Origin regression: no origin sensor is required, and the origin regression is completed at high speed; it saves wiring and can be used when the sensor cannot be installed; it can be manually moved to any position and set as the origin; it supports lock-rotation origin regression; integrates multiple origin regression algorithms, Flexible configuration.

Multiple control modes: support PP, VM, PV, PT, HM, IP, CSP, CSV, CST standard mode; Support NiMotion position mode, NiMotion speed mode, NiMotion torque mode.

S-type acceleration and deceleration curve: built-in 12 s-type acceleration and deceleration curve. Effectively reduce the impact, so that the motor runs more smoothly.

Built-in I/O interface: Localized digital input and output, making the controller easier and simpler to connect to various signal types of sensors, such as: photoelectric switch, proximity sensor, Hall sensor, pulse input, etc.

Perfect alarm function: integrated stepping servo electrical self-check diagnosis, can find hardware faults in time, avoid affecting the operation of the system, equipped with a variety of safety protection functions, through LED flashing alarm, intuitive display of the current state of the motor, at the same time with overvoltage/undervoltage, overheating, overcurrent, gridlock alarm and other protection functions.