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A metal pipe automatic circle calibration system and its processing method

A metal tube and circle calibration technology, applied in the field of metal tube detection, can solve problems affecting production continuity, increasing costs, and multiple workspaces

Active Publication Date: 2015-09-30
XINXING DUCTILE IRON PIPES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since there are many types of metal pipe products with different diameters, in the production process, in order to adapt to the detection of metal pipes with different diameters, the above-mentioned technical solution will face the problem of adjusting the outer diameter measuring device to adapt to the detection of metal pipes with different diameters. Quality inspection needs, however, in order to realize automatic production, such adjustment will inevitably affect the continuity of production; if multiple inspection stations are set up for different types of metal pipes with different diameters, on the one hand, it will increase the cost, and on the other hand, it will occupy more space. more workspace

Method used

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  • A metal pipe automatic circle calibration system and its processing method
  • A metal pipe automatic circle calibration system and its processing method
  • A metal pipe automatic circle calibration system and its processing method

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0033] Such as figure 1 As shown, an automatic rounding system for metal pipes includes PLC controller 1, industrial computer 2, position sensor 3, pipe diameter identification system 4, frequency converter 5, idler motor 6, position detection encoder 7, and CCD camera 8 , idler mechanism 10. The industrial computer 2 is bidirectionally connected to the PLC controller 1, the pipe diameter identification system 4, the position sensor 3 and the position detection encoder 7 are electrically connected to the PLC controller 1, and the idler motor 6 is connected to the PLC through a frequency converter 5. The output end of the controller 1 is electrically connected, the CCD camera 8 or the laser rangefinder 12 is electrically connected to the industrial computer 2, the idler motor 6 is fixedly connected to the idler mechanism 10, and the idler mechanism 10 drives the metal pipe to be detected 9 turn.

[0034]Preferably, for the convenience of taking pictures, the CCD camera 8 is l...

Embodiment 2

[0046] In this embodiment, instead of using a CCD camera to collect images to detect the diameter of the metal pipe in Embodiment 1, the principle of laser triangulation is used instead to detect different The diameter of the metal pipe under the position, obtain a group of metal pipe diameter values, determine the maximum pipe diameter value position or the minimum pipe diameter value position, and then perform circle calibration by the pipe diameter correction device according to the method as described in Example 1 process.

[0047] Such as figure 2 As shown, a laser range finder 12 is respectively arranged at the position directly above and directly below the metal pipe 9. The position directly above and directly below can be determined by means of a roller mechanism 10. The position of the laser range finder 12 is fixed. When the position sensor 3 retrieves After the metal pipe 9 is in place, the upper and lower laser range finders 12 can start to work, and dete...

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Abstract

The invention discloses an automatic metal pipe roundness correction system and a processing method thereof. The automatic metal pipe roundness correction system comprises a PLC, an industrial personal computer, a position sensor, a pipe diameter recognizing system, a frequency converter, a carrier roller motor, a position detection encoder, a pipe diameter detecting part formed by a CCD camera or a laser distance meter and a carrier roller and a pipe diameter correction device. The pipe diameter recognizing system, the position sensor and the position detection encoder are connected with the input end of the PLC, the industrial personal computer is connected with the PLC in a bidirectional mode, the carrier roller motor is electrically connected with the output end of the PLC through the frequency converter, the CCD camera is electrically connected with the industrial personal computer, the carrier roller motor drives a metal pipe to rotate through a carrier roller mechanism and the pipe diameter correction device is controlled by the PLC. The automatic metal pipe roundness correction system can realize automatic mixed pipe roundness correction, improve the production efficiency and lower the rejection ratio.

Description

technical field [0001] The invention relates to the technical field of metal pipe detection, in particular to an automatic circle calibration processing system for metal pipes. Background technique [0002] The pipes made by casting molten iron above No. 18 and adding nodularizing agent through high-speed centrifugal casting of centrifugal ductile iron machines are called "ductile iron pipes", referred to as ball pipes, ductile iron pipes and ductile iron pipes for short. Ductile iron pipe is a kind of metal pipe, which is an alloy of iron, carbon and silicon. Graphite in ductile iron exists in spherical form, and the size of general graphite is 6-7 grades. In terms of quality, the nodularization grade of cast iron pipes is required to be controlled at 1-3 grades (the nodularization rate is greater than 80%), so the mechanical properties of the material itself The performance has been better improved, with the essence of iron and the performance of steel. After annealing, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D3/14G05B19/05B21C51/00
Inventor 张同波李军陈江涛刘志毅冯永刚闫现臣孔国滨
Owner XINXING DUCTILE IRON PIPES CO LTD