Apparatus and method for measuring weld gap

Abstract

The invention discloses a weld gap measurement device and a method, which can be applied to a spinning device. The weld gap measurement device comprises a measurement device body, a supporting frame, a taper tester and an elastic piece, wherein the supporting frame is arranged at the front end of the measurement device body; the taper tester is connected with the measurement device body; and one end of the elastic piece is fixed on the supporting frame and the other end is fixed at the bottom part of the taper tester. The measurement device body is controlled to enter a melt pipeline of the spinning device, the taper tester enters the weld gap of the melt pipeline to measure sinking parameters of entering the weld gap by the taper tester, and according to the taper of the taper tester and the sinking parameters, the width parameters of the weld gap are acquired. According to the weld gap measurement device and the method, the weld gap detection efficiency can be improved, and detection accuracy is also improved.

Description

technical field [0001] The invention relates to the technical field of chemical fiber equipment manufacturing, in particular to a measuring device and method for a weld gap. Background technique [0002] In the prior art, the spinning box is an important spinning part of chemical fiber equipment, which includes many key technical requirements. Among them, the welded joint between the melt pipeline in the spinning box and the tube plate of the pump seat must not only be able to withstand 35MPa High pressure, and the gap of the pipe body welding machine cannot exceed 1mm. Weld seam strength can be achieved through reasonable welding process. The size of the welding gap directly affects whether the equipment can spin normally. Therefore, it is particularly important to check the gap after welding. See figure 1 , when the melt pipeline 1 and the pump base 2 are welded, whether the pipe body of the melt pipeline 1 is inserted into the bottom of the slit of the pump base 2, and w...

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Problems solved by technology

[0003] In this way, when detecting the weld gap 3, it can only be detected from the inside of the melt pipeline 1, and the inner diameter of the melt pipeline 1 is usually only about 8mm, and the length is 100-500mm, and there are multiple 90-degree angles. The bend is such that when inspecting the weld gap 3, an endoscope is usually used for inspection, but when transported into the melt line 1, the endoscope is small and mounted to the melt line Step 1 is cumbersome, and the data collected through the endoscope will be somewhat distorted, resulting in low detection efficiency and low detection accuracy

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