一种双驱线轨气浮运动平台
By combining an air-float plate with a linear guide rail, the problems of insufficient motion accuracy and excessive size of the motion platform are solved, realizing a high-precision, low-height motion platform design.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ALBERT (SUZHOU) TECH CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-07-17
AI Technical Summary
The motion platform with fully linear guide rail design in the existing technology has insufficient motion accuracy, while the motion platform with fully air-bearing guide rail design is too large and cannot meet market demand.
Linear guides are used as the lower axis motion assembly, and air floats are used to support the upper axis motion assembly. The floating effect of the air floats reduces the contact area and friction between the upper axis motion assembly and the crossbeam, improving motion accuracy and rigidity, while reducing the height and volume of the motion platform.
It improves the motion accuracy and rigidity of the motion platform, reduces the height and volume of the motion platform, and enhances the levelness and straightness.
Smart Images
Figure CN224509020U_ABST
Abstract
Claims
1. A dual drive rail air bearing motion platform, characterized in that, include, Base; A lower shaft motion assembly is disposed on the base, and the lower shaft motion assembly includes a linear guide rail; A crossbeam, which is slidably connected to the linear guide rail; An upper shaft motion assembly is disposed on the crossbeam. The upper shaft motion assembly includes a first linear motor and a connecting seat, and the output end of the first linear motor is connected to the connecting seat. Multiple air flotation plates are connected to the connecting seat, and the multiple air flotation plates include a first air flotation plate disposed on the base and located below the crossbeam.
2. The dual drive rail air bearing motion platform of claim 1, wherein, The crossbeam is provided with a clearance hole, and the connecting seat passes through the clearance hole and connects to the first air flotation plate.
3. The dual drive rail air bearing motion platform of claim 2, wherein, The clearance hole extends along the length of the crossbeam.
4. The dual drive rail air bearing motion platform of claim 2, wherein, The clearance holes are distributed on both sides of the first linear motor. The connecting seat includes two vertical plates distributed on both sides of the first linear motor. The two vertical plates pass through the clearance holes on both sides and are connected to the first air-float plate.
5. The dual drive rail air bearing motion platform of claim 4, wherein, The connecting base also includes a horizontal plate connecting the two vertical plates, and the horizontal plate is horizontally connected to the output end of the first linear motor.
6. The dual drive rail air bearing motion platform of claim 1, wherein, The plurality of air flotation plates also include a second air flotation plate and a third air flotation plate, the second air flotation plate and the third air flotation plate being symmetrically distributed on both sides of the crossbeam along the horizontal direction, and both the second air flotation plate and the third air flotation plate abutting against the crossbeam.
7. The dual drive rail air bearing motion platform of claim 1, wherein, It also includes a mounting base disposed on the base and a grating ruler connected to the mounting base.
8. The dual drive rail air bearing motion platform of claim 7, wherein, It includes multiple grating rulers, which are distributed at both ends of the crossbeam.
9. The dual drive rail air bearing motion platform of claim 8, wherein, It also includes a bellows cover connected to the base, and the linear guide rail, the grating ruler, and the first linear motor are all disposed inside the bellows cover.
10. The dual drive rail air bearing motion platform of claim 1, wherein, The lower shaft motion assembly also includes a plurality of second linear motors, the output ends of which are respectively connected to both ends of the crossbeam. The plurality of second linear motors drive the crossbeam along a first direction, and the first linear motor drives the connecting seat along a second direction. The first direction is perpendicular to the second direction.