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Force actuator based on tension-compression spring set

A technology of tension and compression springs and force actuators, which is applied in the direction of instruments, optical components, optics, etc., can solve the problems of low force output accuracy of mechanical force actuators, achieve good linearity, improve output accuracy, and improve transmission accuracy Effect

Active Publication Date: 2017-07-14
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of low force output accuracy of mechanical force actuators in the prior art, and to provide a force actuator based on tension and compression spring groups

Method used

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  • Force actuator based on tension-compression spring set
  • Force actuator based on tension-compression spring set
  • Force actuator based on tension-compression spring set

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Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0026] Such as Figure 1-2 As shown, the force actuator based on the tension and compression spring group of the present invention includes: a housing 1, a motor 2, a fixed seat 3, a fixing mechanism 4, a ball screw 5, a nut 6, a force measuring element 7, an output shaft 8, a A spring cage 9, a second spring cage 10, a guide shaft group, a compression spring group, an adjustment mechanism group and an extension spring group.

[0027] Wherein, the fixing seat 3 is fixed on the inner wall of the housing 1 . The fixing mechanism 4 is fixed on the fixing seat 3 , and one end of the fixing mechanism 4 is fixedly connected with the ball screw 5 , and the other end is fixedly connected with the motor 2 . Generally, the motor 2 is a stepping motor, the fixed seat 3 is a bearing seat, and the fixed mechanism 4 is composed of a bearing 4-1 and a coupling 4-2. The be...

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Abstract

The invention discloses a force actuator based on a tension-compression spring group, which belongs to the technical field of precision mechanical devices. The problem of low force output precision of the mechanical force actuator in the prior art is solved. The force promoter of the present invention includes a housing, a motor, a fixing seat, a fixing mechanism, a ball screw, a nut, a force measuring element, an output shaft, a first spring holder, a second spring holder, a guide shaft group, and a compression spring group , Adjusting mechanism group and extension spring group, the guide shaft group is composed of N guide shafts, the compression spring group is composed of N compression springs, the compression springs correspond to the guide shafts one by one, the compression springs are set on the guide shaft, the two compression springs The ends are respectively in contact with the first spring cage and the second spring cage; the adjustment mechanism group is composed of N adjustment mechanisms, and the extension spring group is composed of N extension springs, which correspond to the adjustment mechanisms one by one, and one end of the extension spring is fixed On the second spring support frame, the other end is fixed on the adjustment mechanism, N≥3. The force booster has high output precision.

Description

technical field [0001] The invention belongs to the technical field of precision mechanical devices, and in particular relates to a force actuator based on a tension-compression spring group, which is suitable for the requirement of active optics on mirror support force control. Background technique [0002] Force actuators have a wide range of applications in many fields, especially in the field of optics. Active optics uses force actuators to output different support forces to the optical mirror to keep the mirror surface in a good state and ensure the imaging quality of the optical system. The current force actuators are mainly mechanical and pneumatic. Among them, the mechanical force actuator has low cost and simple control, and has become the mainstream of application. For example, the Chinese patent bidirectional linear precision force booster (publication number 101276051A) discloses a mechanical force actuator, which uses two sets of compression springs to convert ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B26/08
Inventor 李剑锋王建立吴小霞陈宝刚
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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