一种花岗石气浮三轴加工装置
By employing inclined mating surfaces and air path management structures in the granite air-float triaxial machining device, the rigidity of the air film is enhanced. Combined with real-time error correction and dynamic compensation, the problem of air film collapse under heavy load is solved, achieving high-precision and stable machining results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINAN DONGXING PRECISION MEASURING INSTRUMENT CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-17
AI Technical Summary
The existing air-bearing triaxial machining equipment has insufficient air film stiffness under heavy loads, which leads to air film collapse and direct contact and friction between the slider and the guide rail, affecting positioning accuracy and equipment safety.
High-pressure gas is ejected between the first sliding plate with the inclined mating surface structure and the base to form a stable gas film. Combined with the drive cylinder and displacement sensor, the error is corrected in real time. The displacement error is dynamically compensated by the detection grating assembly. The gas pressure is managed by the gas collection groove and the exhaust hole to avoid excessive gas accumulation.
This improves the stability and resistance to load impact of the air film, ensures the stability and precision of the processing, prevents friction jamming, and enhances the overall performance of the device.
Smart Images
Figure CN224510083U_ABST
Abstract
Claims
1. A granite air floating tri-axial machining device, characterized by: The system includes a base (100), a first moving mechanism (200) moving in the X direction, a second moving mechanism (300) moving in the Y direction, and a third moving mechanism (400) moving in the Z direction. The first moving mechanism (200) includes a first sliding plate (210) and a first linear motor (220). The first sliding plate (210) is slidably disposed on the base (100). First guide rails (230) are fixedly installed at both ends above the base (100). The two ends of the first sliding plate (210) are inclined. One end of a guide rail (230) is inclined, and the first sliding plate (210) slides in cooperation with the inclined surface of the first guide rail (230); the two ends of the first sliding plate (210) are provided with a plurality of first air feet (240), the first air feet (240) are connected to an external air source through an air pipe, and the inclined surface and bottom surface of the first sliding plate (210) are provided with a first air outlet (250) and a first air outlet groove (260), the first air outlet (250) and the first air outlet groove (260) are connected to the first air feet (240); Two sets of the first linear motors (220) are mounted opposite each other on the first guide rails (230) at both ends of the base (100). The stator of the first linear motor (220) is fixedly mounted on the first guide rail (230), and the mover of the first linear motor (220) is fixedly connected to the first sliding plate (210). The second moving mechanism (300) is disposed on the first sliding plate (210), and the third moving mechanism (400) is disposed on the base (100).
2. The granite air floating tri-axial machining apparatus according to claim 1, characterized in that: The second moving mechanism (300) includes a second sliding plate (310), a second guide rail (320), and a second linear motor (330). The first sliding plate (210) has a sliding groove (270). The second guide rail (320) is fixedly installed in the sliding groove (270) of the first sliding plate (210). The second sliding plate (310) is slidably installed on the second guide rail (320). Multiple second air feet (340) are installed at both ends of the second sliding plate (310). The second air feet (340) are connected to an external air source through an air pipe. Multiple second air outlets (350) and second air outlet grooves (360) are opened at one end of the second sliding plate (310) near the second guide rail (320). The second air outlets (350) and second air outlet grooves (360) on the second sliding plate (310) are connected to the second air feet (340).
3. The granite air floating tri-axial machining apparatus according to claim 1, characterized in that: The third moving mechanism (400) includes a mounting bracket (410), a drive cylinder (420), a displacement sensor (430), and a third sliding plate (440). The mounting bracket (410) is fixedly mounted on the base (100). The cylinder body of the drive cylinder (420) is fixedly mounted on the top of the mounting bracket (410). The third sliding plate (440) is slidably mounted on the mounting bracket (410). The displacement sensor (430) is mounted on the third sliding plate (440). The third sliding plate (440) is fixedly connected to the piston rod of the drive cylinder (420).
4. The granite air floating tri-axial machining apparatus according to claim 2, characterized in that: Both the stator of the first linear motor (220) and the stator of the second linear motor (330) are equipped with magnetic shielding layers.
5. The granite air floating tri-axial machining apparatus according to claim 1, characterized in that: The first moving mechanism (200) further includes a first detection grating assembly, which is mounted on the stator of the first linear motor (220).
6. The granite air floating tri-axial machining apparatus according to claim 2, characterized by: The second moving mechanism (300) also includes a second detection grating assembly, which is mounted on the stator of the second linear motor (330).
7. The granite air floating tri-axial machining apparatus according to claim 5, characterized in that: The first sliding plate (210) is provided with a plurality of first gas collecting grooves (280) and a plurality of first exhaust holes (290). The first gas collecting grooves (280) are connected to the first exhaust holes (290), and the first gas collecting grooves (280) and the first exhaust holes (250) are arranged alternately in sequence.
8. The granite air floating tri-axial machining apparatus according to claim 6, characterized in that: The second sliding plate (310) is provided with a plurality of second air collection grooves (370) and a plurality of second exhaust holes (380). The second air collection grooves (370) are connected to the second exhaust holes (380), and the second air collection grooves (370) and the second exhaust holes (350) are arranged alternately in sequence.
9. The granite air floating tri-axial machining apparatus according to claim 5, characterized by: A wear-resistant coating is laid between the first sliding plate (210) and the first guide rail (230).