Bolt fastening system and achieving method thereof

A fastening and bolting technology, applied in the bolt fastening system and its realization field, can solve the problems of inability to ensure the reliability of bolt locking, inability to record the locking parameters, and low precision of the effective locking force, so as to avoid bolt locking. The tightening force is not up to standard, avoiding bolt omission, and the effect of complete functions

Active Publication Date: 2014-01-08
SICHUAN TERFIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a bolt fastening system and its implementation method, which mainly solves the problems in the prior art that the accura

Method used

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  • Bolt fastening system and achieving method thereof
  • Bolt fastening system and achieving method thereof
  • Bolt fastening system and achieving method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] Example 1

[0032] In order to improve the locking accuracy of the bolt by the hydraulic torque wrench, the present invention provides a torque wrench that can detect the output torque and bolt rotation angle when the bolt is tightened, and the output of the torque wrench is controlled by a controller. A detection device that measures the rotation angle during bolt tightening, and transmits the detection result of the detection device to such Figure 7 The controller shown is a control system composed of industrial touch screen, pressure sensor, temperature sensor, liquid level sensor, printer, data storage, etc. connected to the controller to achieve effective improvement of locking accuracy. The system supports torque control method, torque -Rotation angle control method, yield point control method, seating point-rotation angle control method, after verification, can change the tightening accuracy of the torque wrench from the original 25% increased to 8% or higher, thr...

Example Embodiment

[0035] Example 2

[0036] Such as Figure 3~4 As shown, the difference between this embodiment and embodiment 1 is that a ring-shaped magnetic scale 3 is installed on the extension of the ratchet wheel 2, and a bolt hole is machined near the ratchet wheel 2, and the magnetic sensor 4 is installed on the torque wrench housing through a magnetic sensor mounting bolt , The magnetic sensor 4 detects the rotation of the ring magnetic scale 3 and provides the rotation angle parameter of the bolt to the controller.

Example Embodiment

[0037] Example 3

[0038] Such as Figure 5~6 As shown, the square-drive torque wrench 7 in this embodiment is improved on the basis of the existing square-drive torque wrench 1. The installation threaded hole is machined on the housing, and the encoder installation cover is connected with the encoder installation cover fixing bolts. The square-drive torque wrench is connected. The encoder 9 is installed in the encoder mounting cover and fixed by the encoder fixing bolt. The encoder shaft is connected to the drive shaft 8 of the square-drive torque wrench 7 through the encoder connection key 10, and The rotational motion of the drive shaft 8 is transmitted to the encoder 9, and the drive shaft lock cap is connected with the drive shaft 8 through threads, so that the drive shaft spline is always reliably connected with the square-drive torque wrench ratchet spline, and the torque wrench ratchet is driven at the same time. With the rotation of the bolt and the rotation of the enco...

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Abstract

The invention discloses a bolt fastening system and an achieving method thereof. The bolt fastening system mainly solves the technical problems that in the prior art, the effective bolt locking force accuracy is low, the locking parameters cannot be recorded, and the bolt locking reliability cannot be guaranteed. The bolt fastening system comprises a torque wrench and is characterized by further comprising a detecting device, a controller, a data storer, a printing machine and an industrial control touch panel. The detecting device is arranged on the torque wrench and used for measuring a rotation angle when the torque wrench fastens a bolt, the controller is used for analyzing the rotating angle detected by the detecting device to obtain bolt locking rotating angle parameters, and the data storer, the printing machine and the industrial control touch panel are respectively connected with the controller. By means of the technical scheme, the bolt fastening system achieves the purpose of being higher in accuracy, stronger in reliability and higher in practical value and popularizing valve.

Description

technical field [0001] The invention relates to a bolt fastening system, in particular to a bolt fastening system and its realization method. Background technique [0002] At present, hydraulic tensioners or hydraulic torque wrenches are mostly used for bolt fastening work with large torques. In applications, hydraulic tensioners are only suitable for working conditions where a certain length of screw is exposed and there is a certain space on the exposed side of the screw. Although The tensioner has high bolt locking accuracy, but due to the limitation of its working conditions, it is not applicable in many working conditions; another bolt locking method is the hydraulic torque wrench, the current hydraulic torque wrench can output torque control in 3%, but because the bolt needs to overcome the friction force during the fastening process, according to the bolt quality and lubrication conditions, the friction force of the thread pair and the bolt head will consume 85%-9...

Claims

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Application Information

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IPC IPC(8): B23P19/06
CPCB23P19/06
Inventor 王友张文凯
Owner SICHUAN TERFIC TECH CO LTD
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