End puncture mechanism for a target puncture robot

By designing the end-effector puncture mechanism of the targeted puncture robot, and utilizing the motor-driven transmission wheel to adjust the spacing and the magnetic block for rapid positioning, the problem of inconvenient replacement of puncture needles of different diameters is solved, enabling rapid replacement and positioning, and meeting the diversified needs of the market.

CN224441416UActive Publication Date: 2026-07-03ANHUI POLYTECHNIC UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI POLYTECHNIC UNIV
Filing Date
2025-02-21
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing targeted puncture robots with end-effector puncture mechanisms are inconvenient when changing puncture needles of different diameters, and cannot meet the diversified needs of the market.

Method used

An end-point puncture mechanism was designed, comprising a target support, a fixing frame, a motor, a guide sleeve, a slide rail, a transmission wheel, and a magnetic block. The transmission wheel is driven by the motor to adjust the spacing, and the magnetic block is used for rapid positioning, enabling the rapid replacement of puncture needles of different diameters.

Benefits of technology

It enables rapid replacement and positioning of puncture needles of different diameters, improves operational efficiency, and meets diversified market demands.

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Abstract

This utility model discloses an end-effector puncture mechanism for a targeted puncture robot, relating to the field of robotics. It includes a target support, a fixed frame, and a first motor. The fixed frame is mounted on the top of the target support, and a guide sleeve is mounted on one side of the fixed frame via a mounting bracket. The fixed frame has slots on both sides inside, and slide rails are provided on the inner walls of the slots. A housing is provided inside the slide rails, and a second motor is housed inside the housing. A transmission wheel is mounted on the output end of the second motor via a coupling. The first motor is mounted on one side of the fixed frame, and a fixed shaft is mounted on the output end of the first motor via a coupling. A concave cross-shaped neodymium magnet is provided on the inner wall of the fixed shaft. The device allows a rotating knob to drive a forward and reverse lead screw, which in turn moves a moving block up and down. This, in turn, allows the second motor to adjust the distance between the transmission wheels, facilitating the guidance of puncture needles of different diameters.
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