Device for detecting linearity of inner hole of steel pipe
A detection device and straightness technology, applied in the direction of angle/taper measurement, etc., can solve the problems of large limitations, false detection, missed detection, accuracy, authenticity, etc., to reduce processing requirements, improve accuracy, The effect of improving productivity
Inactive Publication Date: 2017-07-25
湖北加恒实业有限公司
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Problems solved by technology
This detection method is to indirectly measure the straightness of the inner hole of the steel pipe, which has great limitations. The accuracy and authenticity of the test results are greatly affected by whether the wall thickness of the steel pipe is uniform, and it is easy to cause false detection and missed detection.
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[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0025] refer to image 3 and Figure 4 , a steel pipe inner hole straightness detection device, including a slide rail 1, a slide block 2 arranged above the slide rail 1 and a dial gauge 3 arranged in the middle of the slide block 2, and a dial gauge 3 at one end of the slide rail 1 A push rod bracket 4 is arranged above, a rolling bearing 8 is arranged below the other end of the slide rail 1, an oblong hole 9 is arranged in the middle of the slide rail 1, an...
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The invention discloses a device for detecting the linearity of an inner hole of a steel pipe, and the device comprises a sliding rail, a sliding bock disposed above the sliding rail, and a dial indicator disposed at the central part of the sliding block. A push rod bracket is disposed above one end of the sliding rail, and a rolling bearing is disposed below the other end of the sliding rail. The central part of the sliding rail is provided with a long circular hole, and the lower end of the dial indicator passes through the long circuit hole. One end of the sliding block is connected with a push rod, and the push rod passes through the push rod bracket. When the device is in use, the sliding block is pushed to slide on the sliding rail through the push rod, and the lower end of the dial indicator abuts against the inner wall of the steel pipe, and the dial indicator measures the linearity of the inner hole of the steel pipe. The device is simple in structure, is low in cost, is convenient and reliable for use, improves the production efficiency, is more visual in detection result, and is high in detection precision.
Description
[0001] 【Technical field】 [0002] The invention relates to the technical field of product detection devices, in particular to a straightness detection device for inner holes of steel pipes. [0003] 【Background technique】 [0004] In the production and manufacture of steel pipes, some precise short steel pipes need to be tested for the straightness of the inner hole of the steel pipe. Place it radially and axially, then use a feeler gauge to detect the gap, and detect two or more directions in the cross-sectional direction to ensure a more accurate straightness value. Such as figure 1 and figure 2 As shown, the knife-edge steel ruler 01 is placed in the axial direction of the steel pipe 03, so that the lower end of the knife-edge steel ruler 01 is against the outer surface of the steel pipe 03, and the distance between the knife-edge steel ruler 01 and the steel pipe 03 is checked with a feeler gauge 02. Detect the gap between the knife-edge steel ruler 01 and rotate a cert...
Claims
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IPC IPC(8): G01B5/25
CPCG01B5/25
Inventor 王兴志
Owner 湖北加恒实业有限公司