The precision kinematic pair in the electric adjustment frame
An electric adjustment frame, precision motion technology, applied in installation, optics, instruments, etc., can solve the problem of low resolution of the electric adjustment frame
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Embodiment 1
[0017] Such as figure 1 As shown, the precision motion pair in the electric adjustment frame,
[0018] It includes a support frame 1, an adjustment device 2 fixed on both sides of the support frame 1, and a mirror frame 3 fixed on the bottom of the support frame 1 through a universal ball head; the adjustment device 2 includes a stepping motor 4 and a stepping motor 4 The connected housing 5, which is a cavity structure, further includes a telescopic coupling 7 arranged in the cavity structure of the housing 5 and connected to the output shaft 6 of the stepping motor 4, and the other end of the telescopic coupling 7 The connected precision screw 8 also includes positioning seats 9 on the upper surface of the two ends of the lens frame 3, and the ends of the precision screw 8 fall on the positioning seats 9.
[0019] In this embodiment, one end of the telescopic coupling 7 is connected to the precision screw 8, and the other end of the telescopic coupling 7 is connected to the stepp...
Embodiment 2
[0021] In this embodiment, on the basis of Embodiment 1, the telescopic coupling 7 is a bellows coupling.
[0022] In this embodiment, the use of the welded bellows coupling can greatly reduce the return difference caused by the electric adjustment frame during the adjustment process and keep the return difference stable.
Embodiment 3
[0024] Such as figure 1 As shown, this embodiment is based on Embodiment 1 or Embodiment 2. The positioning seat 9 is a V-shaped positioning seat, and further includes a protrusion 10 arranged at the end of the precision screw 8 and a cemented carbide hemisphere The upper surface of 11 is provided with a groove corresponding to the bump 10, and the bump 10 is embedded in the groove; the lower surface of the cemented carbide hemisphere 11 falls in the V-shaped positioning seat, and the convex block 10 The diameter is smaller than the diameter of the precision screw 8, wherein the diameter of the end face of the cemented carbide hemisphere 11 is equal to the diameter of the precision screw 8.
[0025] In this embodiment, the end of the precision screw 8 is provided with a bump 10, and the cemented carbide hemisphere 11 is embedded at the end of the precision screw 8. Since the diameter of the cemented carbide hemisphere 11 is equal to the diameter of the precision screw 8, the hard ...
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