Miniature precision angle adjustment platform

Abstract

This invention discloses a miniature precision angle adjustment platform, comprising a base, an angle platform, a linear drive device, and a drive conversion mechanism. The angle platform is mounted on the base, both having mutually cooperating lower and upper arc-shaped tracks. The drive rod of the linear drive device is rotatably mounted on the base, driving the slide of the drive conversion mechanism to move linearly. Bearings and shafts are provided in accommodating grooves on one or both sides of the slide. One end of the shaft passes through the bearing, and the other end passes through the shaft hole of the angle platform. When the slide moves, the bearings and shaft drive the angle platform to swing along the arc-shaped tracks, adjusting the angle of the platform's reference plane. The linear drive device and drive conversion mechanism of this invention are both positioned between the base and the angle platform, and are horizontally configured, reducing the overall width and height, making it suitable for precision equipment with limited space.

Claims

1. A miniature precision angle adjustment platform, comprising: A base with two lower arc-shaped tracks on its top surface; An angled platform is swayably mounted on the base, with two upper arc-shaped tracks at its bottom, which slide in conjunction with the two lower arc-shaped tracks respectively, and a shaft hole facing its center is provided on the bottom of the angled platform; a linear drive device has a drive rod that extends horizontally on the base and is rotatable. A drive conversion mechanism is disposed between the base and the angle platform, comprising a slide, a receiving groove, a bearing, and a shaft; the slide is driven by the drive rod and can move axially along the drive rod; the receiving groove is located on one side of the slide; the bearing is horizontally disposed in the receiving groove, such that the two inner walls of the receiving groove contact the two circumferential sides of the bearing; one end of the horizontally extending shaft passes through the bearing, and the other end passes through the shaft hole; and when the slide moves linearly driven by the drive rod, it drives the bearing and the shaft through the receiving groove, and the shaft synchronously drives the angle platform to swing along the two lower arc-shaped tracks to adjust the reference plane angle of the angle platform.

2. The miniature precision angle adjustment platform as described in claim 1 further includes a slide with a drive block, the receiving groove being formed on one side of the drive block.

3. The miniature precision angle adjustment platform as described in claim 2 further includes two shaft holes located on both sides and horizontally facing the center of the angle platform on the underside of the angle platform; the drive block has two receiving grooves formed on both sides thereon; the two bearings are respectively horizontally axially disposed in the two receiving grooves; and one end of the two horizontally extending shafts is respectively inserted through the two bearings, and the other end is respectively inserted through the two shaft holes.

4. The miniature precision angle adjustment platform as described in claim 1, wherein the base is provided with a linear slide rail assembly, the bottom of the slide is connected to the linear slide rail assembly, and is guided by the linear slide rail assembly to reciprocate along the axial direction of the drive rod.

5. The miniature precision angle adjustment platform as described in claim 4, wherein the base has a groove extending from its top surface to its bottom surface, and the linear slide rail assembly is accommodated in the groove.

6. The miniature precision angle adjustment platform as described in claim 1 or 3 further includes one or two pivot blocks integrally formed or assembled on the underside of the angle platform and located between the two upper arcuate tracks, the shaft hole being formed in the pivot block.

7. The miniature precision angle adjustment platform as described in claim 1, wherein one end of the drive rod is connected via a coupling to the output shaft of a stepper motor, the stepper motor being assembled at one end of the base.

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