High-precision binocular vision measurement system and method for closure pipe

Abstract

The invention discloses a high-precision binocular vision measurement system and method for a closure pipe. The system comprises a binocular high-precision three-dimensional measurement system, a coaxial device and a target, and is characterized in that the coaxial device is arranged in a flange hole of a flange, and the target is inserted into the coaxial device. The coaxial device comprises a mounting plate, a countersunk head screw and a cone frustum. The countersunk head screw and the cone frustum are mounted on the two sides of the mounting plate respectively; a coaxial cone hole is coaxially formed in the cone frustum; the cone frustum and the countersunk head screw are coaxially arranged; and an industrial strong magnet is mounted on the surface of one side of the countersunk head screw of the mounting plate. The target comprises a body. A measuring head is arranged at the end of the body; at least two target plates are arranged on the body; and three or four round holes are formed in each target plate. The system can measure the detailed spatial position of a to-be-measured flange, including the rotation angle and the deflection angle of the flange, can automatically read measurement data through software and carry out automatic calculation, realizes high-precision measurement of the closure pipe, and has the advantages of digitization, portability, high accessibility and the like.

Description

technical field [0001] The invention relates to a high-precision binocular vision measurement system and a measurement method for closing pipes, belonging to the field of closing pipes. Background technique [0002] Ships are built in sections. Due to the accumulation of errors in the manufacturing process of the sections, many closing tubes are produced in shipbuilding. The production of closing tubes usually adopts the method of taking shapes and welding on site. These two methods have the following disadvantages: (1) the accuracy is not high, there will be 5% of unqualified products (2) the operation time is long, accidents frequently occur during handling operations, and there are potential safety hazards (3) flanges and angle irons are required (4) In-ship welding, cutting and other operations have fire hazards (5) Skilled and experienced professional technicians are required to complete the most difficult thing in pipeline production is "to ensure good precision of the...

AI Technical Summary

Problems solved by technology

These two methods have the following disadvantages: (1) the accuracy is not high, there will be 5% of unqualified products (2) the operation time is long, accidents frequently occur during handling operations, and there are potential safety hazards (3) flanges and angle irons are required (4) In-ship welding, cutting and other operations have fire hazards (5) Skilled and experienced professional technicians are required to complete the most difficult thing in pipeline production is "to ensure good precision of the finished product"

However, if the above two methods are used, the position of the bolt hole of the flange of the closed pipe produced is often incorrect, resulting in the situation that it cannot be installed.

[0003] Patent ZL 2011 1 0309478.9 provides a measurement and reproduction system for closing pipes and its measurement and reproduction method. This method can solve the measurement and reproduction of closing pipes. However, during use, closing pipes with obstacles in the middle or diameters smaller than 76 can not be measured, it will cause the whole ship's closing pipe to not be 100% measured, causing great trouble to the construction site

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