一种高精密力控平台
By combining air-bearing sleeves and voice coil motors, and utilizing air film technology and the mutual repulsion of magnets, the friction loss problem of traditional lifting platforms is solved, achieving high-precision and low-maintenance lifting motion.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN CITY STAR NATE MASCH TECH CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional high-precision lifting platforms cannot meet the requirements of short stroke and high precision due to motion loss caused by the contact friction between the slider and the guide rail.
It adopts a combination of air-bearing sliding sleeve and voice coil motor, and uses air film technology to prevent the lifting frame from directly contacting the base. It also uses counterweight magnets and magnet parts to generate mutual repulsion force to counteract the weight of the lifting frame, and combines grating ruler for position feedback and compensation.
It achieves frictionless, interference-free, precise force control, high-frequency response, and low-maintenance, long-life lifting motion, improving the platform's accuracy and stability.
Smart Images
Figure CN224513099U_ABST
Abstract
Claims
1. A high-precision force control platform, characterized in that, include: The base (1), the air-floating sleeve (2) set on the base (1), the voice coil motor (3) set in the air-floating sleeve (2) and the lifting frame (4) installed on the voice coil motor (3), wherein the coil part (31) of the voice coil motor (3) is installed on the base (1), the magnet part (32) of the voice coil motor (3) is installed on the lifting frame (4), and a counterweight magnet (5) that is mutually repulsive to the magnet part (32) is provided on the base (1).
2. The high-precision force control platform according to claim 1, wherein: The air-floating sleeve (2) is fitted around the lifting frame (4), and the air-floating sleeve (2) has multiple air passages inside. The inner wall of the air-floating sleeve (2) is provided with multiple air holes (21) for blowing air into the lifting frame (4) to generate an air film, and the outer wall of the air-floating sleeve (2) is provided with air nozzles (22) for supplying air to the air passages.
3. The high-precision force control platform according to claim 1, wherein: The lifting frame (4) includes an air-floating guide rail (41) floating in the air-floating slide sleeve (2), a lifting platform (42) on the air-floating guide rail (41), a magnet mounting plate (43) on the air-floating guide rail (41) for mounting the magnet part (32), and a limiting block (44) on the outer wall of the air-floating guide rail (41). The air-floating slide sleeve (2) is provided with a stroke groove (23) that matches the limiting block (44).
4. The high-precision force control platform according to claim 3, wherein: The magnet part (32) includes a left magnet group (321) and a right magnet group (322) installed on both sides inside the air-bearing guide rail (41). The coil part (31) is vertically arranged on the base (1) and extends between the left magnet group (321) and the right magnet group (322).
5. The high-precision force control platform according to claim 4, wherein: The counterweight magnet (5) is mounted on the base (1) and located in the middle of the coil section (31).
6. The high-precision force control platform according to any one of claims 1-5, wherein: The air-bearing sleeve (2) is equipped with a reading head (6) for detecting the movement of the lifting frame (4).
7. The high-precision force control platform according to claim 6, wherein: The lower end of the air-bearing sleeve (2) is provided with an outlet (24) for the cable of the voice coil motor (3) to extend out.