Welded pipe end straightness online detection device
A detection device and straightness technology, which is applied to measurement devices, optical devices, instruments, etc., can solve the problems of reduced reliability of measurement results, inability to ensure the coincidence of virtual reference lines in space, etc., to reduce height and facilitate installation and disassembly. , The effect of reducing wear and disassembly times
Inactive Publication Date: 2011-03-23
SHANGHAI JIAOTONG UNIV
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Problems solved by technology
Although this technology solves the problem of automatic detection of the straightness of workpieces with large length-to-diameter ratios, the workpiece is still during the detection process, and the bending of the workpiece is usually multi-dimensional, which cannot guarantee the space between the axis line of the workpiece and the collimation system during measurement. The virtual reference line coincides, so the positioning error caused by the bending of the workpiece will be brought into the measurement result, which will reduce the reliability of the measurement result
In addition, because the diameter of the welded pipe is much larger than that of the sucker rod, the test stand can only be used to test the straightness of smaller diameter workpieces
Method used
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[0013] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.
[0014] Such as figure 1 , figure 2 As shown, this embodiment includes: a base mechanism 1, a base mechanism 2, a detection mechanism 3 and a detection arm 4, wherein: the base mechanism 1 is arranged on the top of the base mechanism 2, and the detection arm 4 is arranged on the side of the base mechanism 1 , the detection mechanism 3 is connected with the base mechanism 1 through the detection arm 4, and when working, the detection mechanism 3 is located directly above the welded pipe to be tested.
[0015] The base mechanism 1 includes: a base 5, an upper guide rail 6, a ball screw 7, a synchronous pulley 8 and...
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The invention discloses a welded pipe end straightness online detection device, belonging to the technical field of welding control, and comprising a detection mechanism, a detection arm, a pedestal mechanism and a base mechanism, wherein the pedestal mechanism is arranged at the upper part of the base mechanism, the detection arm is arranged at the side surface of the pedestal mechanism, the twoends of the detection arm are respectively connected with the detection mechanism and the pedestal mechanism, the detection mechanism is positioned right above a welded pipe to be detected, and the detection mechanism, the detection arm and the pedestal mechanism are all positioned at the same side of the base mechanism. The invention is the online detection device which can substitute a manual visual inspection method to detect, and realize end straightness online automatic detection of welded pipes with different specifications.
Description
technical field [0001] The invention relates to a device in the technical field of welding control, in particular to an online detection device for the straightness of a welded pipe end with an aspect ratio greater than 30. Background technique [0002] With the growth of energy demand, there is an increasing demand for high-quality welded pipes at home and abroad. After the heat treatment process of welded pipe production, the straightness of both ends of the welded pipe has a great influence on the subsequent processing procedures and the quality of the final product of the welded pipe. However, at present, domestic related enterprises mostly use manual visual inspection method to detect the straightness of welded pipe ends, that is, the workers hold the riding gauge, stick the riding gauge to the surface of the welded pipe, then turn the welded pipe, and obtain the bending value of the welded pipe end through the reading of the dial indicator , due to the low efficiency ...
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IPC IPC(8): G01B11/26
Inventor 王海丽张文辉裴景玉胡德金柏文峰
Owner SHANGHAI JIAOTONG UNIV