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An incremental linear rotation two-degree-of-freedom position detection device

A detection device and a technology of degrees of freedom, applied in the direction of measuring devices, conversion sensor output, instruments, etc., can solve the problems of complex, large space occupation, and difficult to realize miniaturization applications, and achieve the effect of reducing volume and ensuring accuracy

Active Publication Date: 2018-06-12
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although various structural types of linear rotation two-degree-of-freedom motors have been proposed continuously, such as spiral, combined and integrated structures, etc., the mover position detection device often uses the method of separately detecting the two degrees of freedom. Occupies a large space, and the follow-up position signal logic judgment is cumbersome and complicated, and it is difficult to realize the application of miniaturization

Method used

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  • An incremental linear rotation two-degree-of-freedom position detection device
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  • An incremental linear rotation two-degree-of-freedom position detection device

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Embodiment Construction

[0022] The present invention will be further elaborated below by specific embodiment:

[0023] The invention relates to an incremental linear rotation two-degree-of-freedom position detection device, comprising a housing 1, an integrated cup-shaped code disc 2 arranged in the housing, a photoelectric sensor, and a linear rotation bearing;

[0024] The shell 1 is a cup-shaped structure with an open top, and a fixed shaft 6 is arranged at the center of the inner bottom of the shell;

[0025] The integrated cup-shaped code disc 2 is a cup-shaped structure made of acrylic material, the top is provided with a connecting shaft 7 connected to an external detection motor, the bottom is a disc with a central hole, and the fixed shaft 6 passes through the central opening. The hole extends to the inner top of the integrated cup-shaped code disc; the disc is engraved with m (m=200, 500, 1024, 2048...) pieces of black and white lines distributed along the circumference to form a rotary pos...

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Abstract

An incremental linear rotation two-degree-freedom position detecting device comprises an integrated cup-shaped code disc, photoelectric sensors, a linear rotation bearing and a housing and is characterized in that the integrated cup-shaped code disc is a cup-shaped structural body made of acrylic material, the bottom of the cup-shaped structural body is a disc with a central hole, m black and white strips are marked along the circumference direction of the disc, n black and white strips are marked along the axial direction of the cylindrical outer wall of the cup-shaped structural body, and the photoelectric sensors comprise a reflected light type linear displacement photoelectric sensor and a transmitted light type rotation angle displacement photoelectric sensor. The incremental linear rotation two-degree-freedom position detecting device realizes linear and rotation two-degree-freedom position detection, reduces the sizes of position sensors and ensures the precision of linear and rotation two-degree-freedom position detection.

Description

technical field [0001] The invention relates to an incremental linear rotation two-degree-of-freedom position detection device, in particular to a linear rotation two-degree-of-freedom motor position detection device, which belongs to the technical field of motors. Background technique [0002] As the complexity of industrial drive systems increases, linear rotary two-degree-of-freedom motors are used in more and more fields, such as human joints, robotic arms, high-end machine tools, ship propulsion, artillery turntables, and satellite tracking antennas. The linear rotation two-degree-of-freedom motor is a motor that can realize linear, rotary, and helical motions, and position detection is the basis for the motor to realize the three motions. Although various structural types of linear rotation two-degree-of-freedom motors have been proposed continuously, such as spiral, combined and integrated structures, etc., the mover position detection device often uses the method of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D5/347
CPCG01D5/3473G01D5/34746
Inventor 徐磊林明耀付兴贺丁超
Owner SOUTHEAST UNIV
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