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High accuracy curvature control device and method

A technology of measurement and control device and measurement and control method, which is applied in the direction of electric controllers, controllers with specific characteristics, manufacturing tools, etc., can solve the problems of the influence of processing accuracy, installation of large support guide rails, and low processing efficiency, so as to achieve measurement and use Convenience, simple structure and high measurement accuracy

Inactive Publication Date: 2009-07-08
SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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Problems solved by technology

The disadvantage of the chord measurement method is that four displacement sensors need to be installed and one of the displacement sensors is installed at the front of the rib and moves synchronously with the rib, so a bulky support rail needs to be installed
The rib processing is fed in sections, and the length of each feed is fixed, which not only affects the processing accuracy, but also reduces the processing efficiency

Method used

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  • High accuracy curvature control device and method
  • High accuracy curvature control device and method
  • High accuracy curvature control device and method

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Embodiment Construction

[0025] Such as figure 1 , 3 As shown, the curvature measurement control device of the present invention: three linear displacement detection mechanisms are vertically installed on one side of the machine tool table, and each linear displacement detection mechanism is arranged in parallel; wherein the linear displacement detection mechanism is based on a linear displacement sensor , also includes a detection wheel, a guide rod and a slider equipped with a transmitter. The front end of the guide rod is in contact with the steel material through the detection wheel, so that the guide rod can be pressed against the steel material, and the rear end is connected to the slider equipped with a linear displacement sensor. The other end of the slider is installed on the machine table through a compression spring, and a rotary encoder is set at the coaxial position with the detection wheel, and the rotary encoder and the transmitter on the slider are respectively connected to the countin...

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Abstract

The invention relates to a curvature measurement control technology, in particular to a high-precision curvature measurement control device and a method thereof. The invention calculates the included angle of neighboring strings on each equant section according to a steel material curve as a given value of a closed-cycle control system, uses a rotary encoder coaxial with a detecting wheel at the top end of a guide rod of a straight-line displacement detecting mechanism to detect the curve displacement amount moving along the steel materials, uses a transducer to detect the deformation amount of the steel materials through the guide rods on three straight-line displacement detecting mechanisms, uses the values of the three straight-line displacement detecting mechanisms to calculate the actual included angle of neighboring strings as a feedback quantity of the closed-cycle control system and uses a hydraulic servo system connected with an analog amount output card to control the deformation amount of the steel materials during a machining process. The invention can measure and control a costalis curvature with high precision and is used for continuous cold bending of a submarine and a hull costalis.

Description

technical field [0001] The invention relates to curvature measurement and control technology, in particular to a high-precision curvature measurement and control device and method. Background technique [0002] The curvature measurement method commonly used in rib cold bending machines is the chord measurement method. The disadvantage of the chord measurement method is that four displacement sensors need to be installed and one of the displacement sensors is installed at the front end of the rib and moves synchronously with the rib, so a huge support rail needs to be installed. The rib processing is fed in sections, and the length of each feed is fixed, which not only affects the processing accuracy, but also reduces the processing efficiency. Therefore, it is an urgent problem to realize the continuous feeding of the rib cold bending machine, and to improve the detection accuracy of the rib curvature and the rib processing efficiency. Contents of the invention [0003] ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D7/14B21D7/12B21D7/16B21C51/00G05B11/32G05B11/42
Inventor 吴景辉朱军张环宇
Owner SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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