Bolt tightening device and method, and bolt tightening monitoring system and method
A technology of bolts and equipment, applied in metal processing equipment, design optimization/simulation, instruments, etc., to achieve the effect of improving reliability and realizing control
Active Publication Date: 2020-06-23
BEIJING FOTON CUMMINS ENGINE
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[0004] The object of the present invention is to provide a bolt tightening device and method and a bolt tightening monitoring system and method, which are used to solve the problem of accurately controlling the clamping force after the bolt is clamped
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[0017] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0018] figure 1 is a block diagram of the bolt tightening device provided by the present invention, such as figure 1 As shown, the bolt tightening equipment includes a data acquisition device and a control device. During the tightening process of the bolt, the data acquisition device collects the tightening angle of the bolt and the torque corresponding to the tightening angle at regular intervals, and the control device calculates the clamping force according to the tightening angle and torque collected by the data acquisition device. Angle, combined with the theoretical value of tightening angle obtained in advance, controls the tightening of bolts.
[0019...
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The invention relates to the technical field of bolt tightening and bolt tightening monitoring and discloses bolt tightening equipment and method and a bolt tightening monitoring system and method. The bolt tightening equipment comprises a data collection device and a control device, the data collection device collects tightening angle of a bolt and corresponding torque once every other regular time interval in the process of tightening the bolt, and the control device calculates angle of clamping force according to collected tightening angles and torque and combines with a tightening angle theoretical value acquired in advance to control tightening of the bolt. Final clamping force after the bolt is tightened can be controlled accurately through a pure angle control method, influence of friction coefficient of the bolt and a clamping member on final clamping force in conventional tightening methods is eliminated perfectly, the clamping force is controlled well, and product reliability of the manufacturing industry is improved.
Description
technical field [0001] The invention relates to bolt tightening and bolt tightening monitoring technology, in particular, to a bolt tightening device and method, and a bolt tightening monitoring system and method. Background technique [0002] The bolt axial force is the force generated during the process of tightening the nut so that the bolt is screwed into the threaded hole according to the bolt thread, and the elastic force generated by the bolt in the elastic range is the bolt clamping force. Since the clamping force cannot be intuitively controlled and monitored, the bolt clamping force is generally controlled indirectly by controlling the torque or controlling the angle during the production process. [0003] At present, the commonly used methods are pure torque control method and torque angle control method. The clamping force of the bolt after tightening obtained by the torque angle control method is more accurate than that obtained by the pure torque control method...
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IPC IPC(8): G06F30/20G06F119/14B23P19/06
Inventor 肖潮狄志慧耿立军
Owner BEIJING FOTON CUMMINS ENGINE