A torque wrench automatic detection system and detection method

Abstract

The invention discloses an automatic torque wrench detecting system and method. The automatic torque wrench detecting system comprises a standard torque gauge, a working table, an executing mechanism and an electrical control system. The standard torque gauge is connected with the electrical control system through a signal line, and the electrical control system exerts torque on the executing mechanism by driving a servo motor. The executing mechanism comprises a planetary reducer arranged in a reducer cabinet, a fixed guide rail fixed onto the working table a sliding guide rail and a sliding baffle, wherein the sliding guide rail and the sliding baffle are arranged on the fixed guide rail. The electrical control system comprises an electrical control cabinet and an industrial personal computer cabinet, a displayer, a support and a manual operation platform, wherein the electrical control cabinet and the industrial personal computer control cabinet are arranged below the working table, the displayer and the support are fixed onto the working table and the manual operation platform is arranged on the front side of the working table. The torque wrench detecting system which is accurate and efficient is developed, and can detect the value of torque borne by a wrench in real time and send the value to an electrical control system to drive the servo motor so as to drive the reducer to exert torque.

Description

technical field [0001] The invention relates to an automatic detection system and detection method for a torque wrench, which can be used to complete automatic verification, calibration and testing of the torque wrench. Background technique [0002] A torque wrench is a tightening measuring instrument with a torque measuring mechanism. It is used to tighten bolts and nuts and can measure the torque value during tightening. Therefore, it is an important instrument for controlling assembly accuracy; according to the power used Source, torque wrench is generally divided into four categories: manual, electric, pneumatic and hydraulic; among them, manual torque wrench is the most widely used because of its simple structure, low price and convenient use. [0003] With the development of my country's industry, the technical level of industrial production is getting higher and higher, and the requirements for product quality are getting higher and higher, which makes the requirement...

AI Technical Summary

Problems solved by technology

[0005] (1) The labor intensity is high. Each loading must be done manually by turning the handwheel. When verifying a large-range torque wrench (such as 3000Nm), the handwheel is very heavy, and the tester needs to have great arm strength and strong endurance.

[0006] (2) The repeatability of the indication value is poor, and the error of the indication value is large. Every time the verification reaches the peak value or the predetermined torque value, the handwheel must be stopped. The verification personnel are different, the operating habits are different, and the personal reaction speed is different, which will bring about the verification. error

[0007] (3) Single function This kind of calibrating instrument often adopts a single range setting, that is, one calibrating instrument is equipped with only one torque standard instrument. If you want to meet the calibration of all torque wrenches in the range of 10Nm to 3000Nm, you must configure A series of calibration instruments, the total purchase price is high, and it takes up a lot of space in the laboratory

[0008] (4) It is inconvenient to trace the source of the value. Since this type of device usually adopts a single-chip microcomputer system, there is no independent calibrated secondary instrument, so the standard torque meter on the device can only be removed and sent for inspection separately. The meter does not match, the connection is inconvenient and will introduce errors

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