WO2023129037A1

WO2023129037A1 - Automatic torque calibrator

Info

Publication number: WO2023129037A1
Application number: PCT/TR2022/051551
Authority: WO
Inventors: Ramazan KEREK; Mehmet Esat BÖLÜKBAŞI; Mustafa Çakmak; Haci Mehmet AKIN
Original assignee: Fnss Savunma Si̇stemleri̇ A.Ş.
Priority date: 2021-12-27
Filing date: 2022-12-21
Publication date: 2023-07-06

Abstract

The invention relates to the automatic torque calibrator used to calibrate the torque tool which measures torque. The invention more specifically relates to the automatic torque calibrator, which includes at least one user interface (10) that enables information about the torque tool to be recorded, a calibration procedure to be created, each step to be configured, the force value obtained for each step in the procedure to be stored in memory (13) and a calibration certificate after the operations are completed; at least one drive system (20) that allows the generated force to be generated at the desired time, at the desired speed and in the desired direction (clockwise and anti-clockwise), and at least once control unit that initiates calibration by communicating with the drive system (20) according to the procedure and ensures that it proceeds according to the procedure.

Description

AUTOMATIC TORQUE CALIBRATOR

TECHNICAL FIELD

The invention relates to the automatic torque calibrator used to calibrate the torque tool which measures torque.

The invention more specifically relates to the automatic torque calibrator, which includes at least one user interface that enables information about the torque tool to be recorded, a calibration procedure to be created, each step to be configured, the force value obtained for each step in the procedure to be stored in memory and a calibration certificate after the operations are completed; at least one drive system that allows the generated force to be generated at the desired time, at the desired speed and in the desired direction (clockwise and anti-clockwise), initiates calibration by communicating with the drive system according to the procedure and ensures that it proceeds according to the procedure.

PRIOR ART

Calibration is defined as the series of operations that form the relationship between the values indicated by a measuring instrument or measuring system or expressed by a criterion/scale under specified conditions and the device/system whose values are known as the measurement/reference values of that system. Calibration is not the process of adjusting a measuring instrument or assembly to give accurate results.

Calibration allows the scale, measuring instrument, or measuring system's error to be predicted or the marks on a specific scale to be attributed values. Calibration can also determine other metrological properties. The calibration result can be recorded with a document called a calibration certificate or calibration report. The measuring instrument or measuring device is tested using special equipment and its conformity with a reference instrument accepted as the original is recorded in a report or certificate which must state the instrument/device's make, model, serial number, and size of deviation. In addition, the certificate must contain the Report or Certificate number so the certificate can be traced.

Calibration is an experimental study and must meet all the requirements expected of an experiment study. In other words, it must be carried out by carefully and by people accustomed to careful and written study in a controlled environment; the report must contain the characteristics of the environment where the study was carried out, the equipment used, the method employed, measurement uncertainties, and the results.

If the calibration study determines that the instrument's error in measurement exceeds the limits specified in the process used or any relevant standards, adjustments are made to try and correct this error. But, the calibration must be repeated after the adjustment and the final status reported.

Measuring instruments are affected by the principles and technologies of measurement and use as well as the environment in which they are used and age overtime. Therefore, the calibration needs to be repeated periodically. These periods must be determined by experienced users taking into account the characteristics of the device and the usage conditions, and the frequency of this period must be stated in the calibration report.

The reason why calibration is an expectation of quality management systems is that it is a need for business enterprises. If there is a need to measure a size within a business enterprise, there is also a need to determine whether the measuring instrument used there measures to the required degree of accuracy.

Today's torque-metre calibration machine must be able to calibrate torque tools of all types and models and meet the ISO 6789 standard when performing the calibration. In the prior art, the operator applies force manually using wheels and gears during calibration. The measurement results obtained during calibration are kept manually. Therefore, calibration can take 4-5 hours to complete and the results are unstable due to the length of time. Furthermore, redaction errors occur because the results are kept manually.

In the prior art, calibration has long-term adverse effects on the operator's health (due to turning the wheel by hand).

In conclusion, the need for a new cost-efficient, useful, and practical torque calibrator to fix the aforementioned problems present in the prior art and the inadequacy of the available solutions have made it necessary to make an improvement in the relevant technical field.

PURPOSE OF THE INVENTION

The current invention relates to the automatic torque calibrator used to calibrate torque tools which measure torque, and has been developed to eliminate the aforementioned drawbacks and introduce new benefits to the relevant technical field.

The most important purpose of the invention is for the calibration process to be conducted easily, fully automatically, and in compliance with the ISO 6789 standard.

The other important purpose of the invention is to reduce the calibration time from 4- 5 hours to 1 hour as a result of automatic torque wrench cost-benefit analysis. This will create immense savings in terms of time and cost.

Another important purpose of the invention is to minimize the risk of redaction error by producing certificates automatically. The following figures and their detailed descriptions will make the invention's structural and characteristic features and its advantages easier to understand. Therefore, the assessment should be made by considering the images and their detailed descriptions.

FIGURES PROVIDED TO HELP UNDERSTAND THE INVENTION

FIGURE-1: A schematic diagram depicting said automatic torque calibrator's operation principle.

REFERENCE NUMBERS

10. User Interface

11. RS232 communication

12. USB to CAN

13. Internal Memory

30. Control Unit

40. Gauge

50. Power Supply

60. Emergency Button

70. Manual Control Button DETAILED DESCRIPTION OF THE INVENTION

This detailed description describes the preferred configurations of the automatic torque calibrator only for a better understanding of the subject matter and no limitations should be construed.

The power supply (50) is turned on to power the whole system in the automatic torque calibrator, the operation principle of which is shown in Figure 1 and which calibrates torque tools. Preferably, a 24-Volt power supply is used here. The information for the torque tool is recorded on the user interface (10) and the calibration procedure is created. The user interface (10) is user-friendly and is used to configure each step and manage all operations. The automatic torque calibrator control unit (30) starts the calibration according to the created procedure by communicating with the drive system (20) and ensures that it proceeds according to the procedure. Here, the drive system (20) ensures that the required force is generated at the required time, the required speed, and in the required direction (clockwise and anti-clockwise). The value for the force generated by the motion of the drive system (20) is transferred from the gauge (40), which measures it, to the user interface (10). The gauge (40) measures the force generated both in analogue and digital format. On the user interface (10), the force value obtained for each step of the procedure is stored in memory (13) and once the relevant operations are over, a calibration certificate is produced. Here, the control unit (30) carries out the commands it receives from the user interface (10). It precisely reads the information on the gauge (40) and commands the drive system (20). It also sends gauge (40) and drive system (20) data to the user interface (10). Communication between (10) the user interface and the control unit (30), takes place wirelessly (11) and via USB to CAN .(12) The system is stopped in an emergency by pressing the emergency button (60). The manual control button (70) is used to easily separate the torque tool from the system connection or to manually check its movement in any position. The scope of protection of this application has been specified in the claims section and cannot be limited to what is explained above for exemplary purposes. It is clear that a person skilled in the art can demonstrate the innovation provided in the invention by using similar structures and/or can apply these structures to other fields having similar purposes used in the relevant technique. It is therefore obvious that such structures will lack the criterion of innovation and particularly the criterion of exceeding the prior art.

Claims

CLAIMS - The invention relates to the automatic torque calibrator used to calibrate the torque tool which measures torque and is characterised as:

Having at least one user interface (10) which records information about the torque tool, creates the calibration procedure, allows each step to be configured, saves the force value obtained for each step to memory (13), and creates the calibration certificate once all the operations are complete;

At least one drive system (20) which provides the required force at the required speed and time and in the required direction (clockwise and anti-clockwise).

At least one control unit (30) which starts the calibration according to the created procedure by communicating with the drive system (20) and ensures that it proceeds according to the procedure - It is an automatic torque calibrator per Claim 1 and is characterised as having a gauge that measures the force generated in both analogue (40) and digital format and sends this information to the user interface. (10) - It is an automatic torque calibrator per Claim 1 and is characterised as having an emergency button (60) to stop the system in an emergency during calibration. - It is an automatic torque calibrator per Claim 1 and is characterised as having a manual control button (70), which is used to easily separate the torque tool from the system connection or to manually check its movement in any position.

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