Automatic verification and analysis device and method for torque wrench

Abstract

The invention discloses an automatic verification and analysis device and method for a torque wrench. The device comprises an automatic torque detection module and a main control computer which are integrated on a vehicle body; according to the automatic torque detection module, a plurality of driving mechanisms are fixedly installed in a vehicle body, a driving shaft of each driving mechanism is connected with the first end of a torque sensor, and the second end of each torque sensor is connected with a calibration adapter; each calibration adapter penetrates through the working table, is exposed out of the working table and is used for twisting the driving head of the torque wrench; the limiting mechanism is in sliding connection with the vehicle body, partially penetrates through the working table, is exposed out of the working table and is used for limiting rotation of an operating handle of the torque wrench; the main control computer is connected with the driving mechanism, the torque sensor and the limiting mechanism, controls the driving mechanism to finally twist the driving head of the torque wrench, and collects torque information, measured by the torque sensor, of the driving mechanism at the same time. According to the invention, torque wrenches of different sizes and different models can be automatically detected, and the detection efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of torque wrench calibration, and particularly relates to an automatic torque wrench calibration and analysis device and method. Background Art

[0002] Nuclear power plants have clear requirements for the use of torque wrenches. Before personnel receive and return tools from the tool library, they need to calibrate the torque wrenches. Only after passing the calibration can they be used or returned. However, the existing torque wrenches are all manually detected, with low detection efficiency and inaccurate detection data. This not only increases the labor intensity of people, but also requires the use of supporting detection equipment for torque wrenches of different sizes, increasing the detection cost. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an automatic torque wrench calibration and analysis device and method.

[0004] The technical solution adopted by the present invention to solve its technical problem is: an automatic torque wrench calibration and analysis device, including a vehicle body with a workbench surface, a torque automatic detection module, and a main control machine. The torque automatic detection module and the main control machine are both integrated on the vehicle body, and the main control machine is connected to and controls the torque automatic detection module.

[0005] The torque automatic detection module includes a plurality of driving mechanisms, a plurality of torque sensors, a plurality of calibration adapters, and a limiting mechanism. The plurality of driving mechanisms are fixedly installed inside the vehicle body. The driving shaft of each driving mechanism is connected to the first end of the torque sensor, the second end of each torque sensor is connected to the calibration adapter, and each calibration adapter penetrates through the workbench surface and is exposed outside the workbench surface to twist the driving head of the torque wrench. The limiting mechanism is slidably connected to the vehicle body and partially penetrates through the workbench surface and is exposed outside the workbench surface to limit the rotation of the operating handle of the torque wrench.

[0006] The main control machine is respectively connected to the driving mechanism, the torque sensor, and the limiting mechanism, and controls the driving mechanism to finally twist the driving head of the torque wrench, and simultaneously collects the torque information of the driving mechanism measured by the torque sensor.

[0007] In some embodiments, the driving mechanism includes a driving motor. The driving shaft of the driving motor is connected to the first end of the torque sensor through a first coupling, and the second end of the torque sensor is connected to the calibration adapter through a second coupling.

[0008] In some embodiments, the driving mechanism also includes a first synchronous wheel, a second synchronous wheel, a first synchronous belt, a rotating shaft, a moving block and at least one thrust rod. The driving shaft of the driving motor is connected to the first synchronous wheel, the first synchronous wheel is connected to the second synchronous wheel through the first synchronous belt, the rotating shaft is connected to the second synchronous wheel and rotates with the second synchronous wheel; the moving block is screwed to the rotating shaft, the free end of the thrust rod is connected to the moving block, and is connected to the moving block in a radial sliding connection along the rotating shaft, and the second end of the thrust rod is connected to the torque sensor through the first coupling to drive the torque sensor to rotate.

[0009] In some embodiments, the moving block includes a moving body and a screw block, the screw block is fixedly connected to the moving body, and the screw block is screwed to the rotating shaft;

[0010] The movable body is provided with a mounting hole and a first through hole. The mounting hole is for the free end of the thrust rod to be slidably inserted. The first through hole is for the rotating shaft to pass through and the diameter of the first through hole is larger than the diameter of the rotating shaft.

[0011] In some embodiments, the limiting mechanism includes a lateral movement component, an up and down movement component and a reaction force member, the lateral movement component is respectively connected to the vehicle body and the up and down movement component to drive the up and down movement component to move laterally; the up and down movement component partially passes through the outside of the work surface and is fixedly connected to the reaction force member to drive the reaction force member to move up and down; the reaction force member is arranged outside the work surface to abut the operating handle of the torque wrench.

[0012] In some embodiments, the lateral movement assembly includes a first driving member, a lead screw, a sliding member, a first slider, a first slide rail and two limiting members. The driving shaft of the first driving member is connected to the lead screw to drive the lead screw to rotate; the sliding member is threadedly connected to the lead screw and fixedly connected to the first slider to drive the first slider to move. The first slider is slidably connected to the first slide rail, and the two limiting members are respectively arranged at opposite ends of the length direction of the first slide rail to limit the first slider.

[0013] In some embodiments, the up-and-down moving assembly includes a second driving member, an adapter assembly, a second slider, and a second slide rail, wherein the second slide rail is fixedly connected to the first slider, and the second slider is slidably connected to the second slide rail; the second driving member is fixedly mounted on the first slider, and the driving shaft of the second driving member is connected to the adapter assembly, the adapter assembly changes the driving direction of the second driving member and is connected to the second slider to drive the second slider to move, and the reaction member is fixedly connected to the second slider;

[0014] The length of the second slide rail is perpendicular to the length direction of the first slide rail.

[0015] In some embodiments, the adapter assembly includes a bracket, a third synchronous wheel, a fourth synchronous wheel, a second synchronous belt, a transmission screw, a nut and a connecting piece. The bracket is fixedly connected to the first slider, the second driving member is fixedly mounted on the bracket, the driving shaft of the second driving member is connected to the third synchronous wheel, the fourth synchronous wheel is connected to the third synchronous wheel through the second synchronous belt, the transmission screw is connected to the fourth synchronous wheel and rotates with the fourth synchronous wheel, the nut is connected to the transmission screw, and the connecting piece is fixedly connected to the nut and the second slider respectively to drive the second slider to move.

[0016] In some embodiments, the work surface is provided with a through hole, and the through hole extends in the same direction as the moving direction of the lateral moving component.

[0017] In some embodiments, the reaction member includes a fixed column and a baffle, the upper portion of the fixed column is fixedly connected to the baffle, and the lower portion of the fixed column passes through the through hole and is fixedly connected to the up and down moving component for lifting and lowering the baffle.

[0018] In some embodiments, the baffle is provided with at least one slot for receiving the operating handle of the torque wrench.

[0019] In some embodiments, the vehicle body includes a box body, multiple supporting legs, multiple running wheels and several push rods, the work surface is the top plate of the box body, multiple supporting legs are symmetrically connected to the bottom of the box body, multiple running wheels are symmetrically installed at the bottom of the box body and each running wheel is provided with a foot brake; the push rod is fixedly connected to the upper part or top of the box body (11) for easy handholding.

[0020] In some embodiments, the vehicle body also includes a power box, a power switch, a power indicator light and a power socket. The power box is arranged inside the box and is respectively connected to the main control machine, the drive mechanism, the torque sensor and the limit mechanism; the power switch, the power indicator light and the power socket are respectively connected to the power box and are respectively arranged on the external sides of the box.

[0021] In some embodiments, the calibration adapter includes four, namely, a 3000NM standard positioning conversion head, a 1000NM standard positioning conversion head, a 100NM standard positioning conversion head, and a 10NM standard positioning conversion head;

[0022] The number of the torque sensors is the same as the number of the calibration adapters.

[0023] In some embodiments, it further includes an identity authentication module, which is connected to the main controller and is disposed on the workbench surface;

[0024] And / or, it further includes a tool identification module, which is connected to the main controller and is disposed on the workbench surface.

[0025] In some embodiments, the identity authentication module includes a monitoring camera and a card reader for identifying operator information, and the tool identification module includes a barcode scanner for identifying the information of the torque wrench. The card reader, the identity recognition device and the monitoring camera are respectively connected to the main controller to ensure the matching between the operator and the torque wrench.

[0026] The present invention also constructs a method for automatically calibrating and analyzing a torque wrench, which uses the above-mentioned torque wrench automatic calibration and analysis device, and includes:

[0027] S1: Identify the identity information of the operator through the monitoring camera and the card reader, and use the barcode scanner to scan the label of the torque wrench to identify the tool information of the torque wrench;

[0028] Wherein, the tool information at least includes the measuring range of the torque wrench;

[0029] S2: If the identity information matches the tool information, the main controller opens the operation permission; if the identity information does not match the tool information, the main controller restricts the operation;

[0030] S3: According to the measuring range, connect the driving head of the torque wrench to the matching calibration adapter, and adjust the position of the limiting mechanism to adapt to the operating handle of the torque wrench, and place the operating handle on the limiting mechanism;

[0031] S4: The operator operates the main controller to start the driving mechanism to twist the driving head of the torque wrench, and at the same time the torque sensor records the torque information of the driving mechanism, and the limiting mechanism restricts the rotation of the operating handle of the torque wrench;

[0032] S5: The torque sensor synchronously uploads the torque information to the main controller for storage and observation.

[0033] By implementing the present invention, the following beneficial effects are achieved:

[0034] The automatic calibration and analysis device for torque wrenches of the present invention includes a vehicle body with a workbench surface, a torque automatic detection module, and a main control machine. The torque automatic detection module and the main control machine are both integrated on the vehicle body, and the main control machine is connected to and controls the torque automatic detection module. The torque automatic detection module includes a number of driving mechanisms, a number of torque sensors, a number of calibration adapters, and a limiting mechanism. The number of driving mechanisms is fixedly installed inside the vehicle body. The driving shaft of each driving mechanism is connected to the first end of the torque sensor, the second end of each torque sensor is connected to the calibration adapter, and each calibration adapter penetrates through the workbench surface and is exposed outside the workbench surface for connecting the driving head of the torque wrench. The limiting mechanism is slidably connected to the vehicle body and partially penetrates through the workbench surface and is exposed outside the workbench surface for connecting the operating handle of the torque wrench to achieve limiting. The main control machine is respectively connected to the driving mechanism, the torque sensor, and the limiting mechanism, and controls the driving mechanism to finally drive the driving head of the torque wrench to rotate, and at the same time collects the torque information of the driving mechanism measured by the torque sensor. The present invention uses the driving mechanism to drive the driving head of the torque wrench to perform a twisting action, and restricts the circumferential movement of the operating handle of the torque wrench through the limiting mechanism. At the same time, the torque sensor is used to collect the output torque information of the driving mechanism in real time, and this output torque information is used as the actual output torque value of the torque wrench. The limiting mechanism adopts an adjustable structure design, and its constraint range has a linear adaptation relationship with the length of the torque wrench handle, and can be compatible with torque wrenches of different nominal size specifications. The present invention effectively solves the drawback of customizing tooling for different specifications of torque wrenches in the traditional detection scheme, enables the detection system to have flexible adaptation capabilities, significantly improves the detection efficiency, and reduces the equipment purchase and operation and maintenance costs.

[0035] The automatic calibration analysis method of the torque wrench of the present invention uses an automatic calibration analysis device for the torque wrench, including: S1: Identify the identity information of the operator through a monitoring camera and a card reader, and use a barcode scanner to scan the label of the torque wrench to identify the tool information of the torque wrench; wherein, the tool information at least includes the measuring range of the torque wrench; S2: If the identity information matches the tool information, the main control machine opens the operation permission; if the identity information does not match the tool information, the main control machine restricts the operation; S3: According to the measuring range, connect the driving head of the torque wrench to a matching calibration adapter, and adjust the position of the limiting mechanism to adapt to the operating handle of the torque wrench, and place the operating handle on the limiting mechanism; S4: The operator operates the main control machine to start the driving mechanism to twist the driving head of the torque wrench, and at the same time the torque sensor records the torque information of the driving mechanism, and the limiting mechanism restricts the rotation of the operating handle of the torque wrench; S5: The torque sensor synchronously uploads the torque information to the main control machine for storage and observation. After the operator and the torque wrench are matched, automatic detection is carried out, which improves the accuracy and reliability of the torque calibration of the torque wrench, improves the detection efficiency, and reduces the labor cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The present invention will be further described below in conjunction with the drawings and embodiments. In the drawings:

[0037] Figure 1 is a schematic structural diagram of an automatic calibration analysis device for a torque wrench according to an embodiment of the present invention;

[0038] Figure 2 is Figure 1 the internal structural diagram of the automatic calibration analysis device for the torque wrench in;

[0039] Figure 3 is Figure 2 the structural diagram of the torque automatic detection module in;

[0040] Figure 4 is Figure 3 the first structural diagram of the driving mechanism in;

[0041] Figure 5 is Figure 3 the second structural diagram of the driving mechanism in;

[0042] Figure 6 is Figure 5 the structural diagram of the moving block in;

[0043] Figure 7 is Figure 3 the structural diagram of the limiting mechanism in;

[0044] Figure 8 isFigure 7 Schematic structural diagram of the lateral movement component in

[0045] Figure 9 is Figure 7 Schematic structural diagram of the vertical movement component in

[0046] Figure 10 is Figure 9 Schematic structural diagram of the adapter component in

[0047] Figure 11 is Figure 7 Schematic structural diagram of the reaction force member in

[0048] Wherein, 1 - vehicle body, 11 - box body, 111 - workbench surface, 112 - through hole, 12 - support leg, 13 - power switch, 14 - power indicator light, 15 - power socket, 16 - storage drawer, 2 - torque automatic detection module, 21 - driving mechanism, 211 - driving motor, 212 - first synchronous pulley, 213 - second synchronous pulley, 214 - rotating shaft, 215 - moving block, 2151 - moving body, 2152 - screwed block, 2153 - mounting hole, 2154 - first through hole, 216 - thrust rod, 22 - torque sensor, 23 - calibration adapter, 24 - limiting mechanism, 241 - lateral movement component, 2411 - first driving member, 2412 - lead screw, 2413 - sliding member, 2414 - first slider, 2415 - first slide rail, 2416 - limiting member, 242 - vertical movement component, 2421 - second driving member, 2422 - adapter component, 2422-1 - bracket, 2422-2 - third synchronous pulley, 2422-3 - fourth synchronous pulley, 2422-4 - transmission screw, 2422-5 - nut, 2422-6 - connecting member, 2423 - second slider, 2424 - second slide rail, 243 - reaction force member, 2431 - fixed column, 2432 - baffle plate, 2433 - slotted opening, 3 - main control machine, 31 - display, 32 - label printer, 33 - keyboard, 3,4 - mouse, 4 - tool identification module. Detailed implementation manners

[0049] For a clearer understanding of the technical features, objectives, and effects of the present invention, the detailed implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0050] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other.

[0051] In the description of the invention, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, terms such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0052] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, a chemical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific circumstances.

[0053] See Figure 1 and Figure 2 , an embodiment of the present invention discloses a torque wrench automatic calibration and analysis device, including a vehicle body 1 with a workbench surface 111, a torque automatic detection module 2, and a main control machine 3. The torque automatic detection module 2 and the main control machine 3 are both integrated on the vehicle body 1, and the main control machine 3 is connected to and controls the torque automatic detection module 2. Among them, the vehicle body 1 serves as the load-bearing main body of the entire device, providing the installation and support basis for other components, and ensuring the stability and integrity of the equipment.

[0054] See together Figure 3 , the torque automatic detection module 2 includes a number of driving mechanisms 21, a number of torque sensors 22, a number of calibration adapters 23, and a limiting mechanism 24. The number of driving mechanisms 21 is fixedly installed inside the vehicle body 1. The driving shaft of each driving mechanism 21 is connected to the first end of the torque sensor 22. The second end of each torque sensor 22 is connected to the calibration adapter 23. Each calibration adapter 23 penetrates through the workbench surface 111 and is exposed outside the workbench surface 111 for connecting the driving head of the torque wrench. The limiting mechanism 24 is slidably connected to the vehicle body 1 and partially penetrates through the workbench surface 111 and is exposed outside the workbench surface 111 for connecting the operating handle of the torque wrench to achieve limiting.

[0055] The main control unit 3 is respectively connected to the driving mechanism 21, the torque sensor 22 and the limiting mechanism 24, and controls the driving head of the torque wrench to rotate by finally driving the driving mechanism 21, while collecting the torque information of the driving mechanism 21 measured by the torque sensor 22. As the control center of the device, the main control unit 3 receives the signals transmitted from components such as the torque sensor 22, processes and analyzes them, and controls the operation of the driving mechanism 21 to realize the automatic control of the torque calibration process.

[0056] Among them, the driving mechanism 21 provides power for the calibration of the torque wrench, drives the driving head of the torque wrench to twist, and simulates the torque application process in actual work. The torque sensor 22 is used to detect the torque value borne by the torque wrench in real time, and converts the detected signal into an electrical signal and transmits it to the main control unit 3 for processing and analysis. The torque sensor 22 can be a high-precision static torque sensor 22. The calibration adapter 23 is used to connect the driving head of the torque wrench and the torque sensor 22 to ensure the accurate transmission and detection of torque. Different specifications of calibration adapters can adapt to driving heads of torque wrenches with different sizes. The limiting mechanism 24 is used to limit the movement range of the torque wrench to prevent damage such as overload or collision during the operation of the equipment, and at the same time ensure the accuracy and stability of torque application.

[0057] The present invention uses the driving mechanism 21 to drive the driving head of the torque wrench to perform a twisting action, and restricts the circumferential movement of the operating handle of the torque wrench through the limiting mechanism 24, without manually twisting the operating handle as in the prior art, thereby improving the degree of automation. At the same time, the torque sensor 22 is used to collect the output torque information of the driving mechanism 21 in real time, and this output torque information is used as the actual output torque value of the torque wrench. The limiting mechanism 24 adopts an adjustable structure design, and its constraint range has a linear adaptation relationship with the length of the torque wrench handle, and can be compatible with torque wrenches of different nominal size specifications. The present invention effectively solves the drawback of customizing tooling for torque wrenches of different specifications in traditional detection schemes, enables the detection system to have flexible adaptation capabilities, significantly improves the detection efficiency, and reduces the equipment purchase and operation and maintenance costs.

[0058] See together Figure 4 , in some embodiments, the driving mechanism 21 includes a driving motor 211. The driving shaft of the driving motor 211 is connected to the first end of the torque sensor 22 through a first coupling, and the second end of the torque sensor 22 is connected to the calibration adapter 23 through a second coupling. Among them, the driving motor 211 provides rotational power and is the core component of the driving mechanism 21. It converts electrical energy into mechanical energy and drives the entire driving mechanism 21 to operate.

[0059] Specifically, the drive motor 211 drives the first coupling to rotate, the first coupling drives the torque sensor 22 to rotate, the torque sensor 22 continues to drive the second coupling to rotate, and the second coupling finally drives the calibration adapter 23 to rotate. When the torque wrench is connected to the calibration adapter 23, the calibration adapter 23 is used to twist the drive head of the torque wrench. This drive mechanism 21 is applicable to calibrating adapters 23 and torque wrenches with relatively small torques, such as 10NM standard positioning adapters, 100NM standard positioning adapters, etc. Among them, the dimensions of the calibration adapter 23 and the drive head of the torque wrench must be precisely matched to ensure that the drive head of the torque wrench can be firmly installed on the calibration adapter 23 and will not loosen or slip when the calibration adapter 23 applies torque, thus ensuring the accuracy of torque transmission.

[0060] See also Figure 5 In some embodiments, the drive mechanism 21 further includes a first synchronous pulley 212, a second synchronous pulley 213, a first synchronous belt, a rotating shaft 214, a moving block 215, and at least one thrust rod 216. The drive shaft of the drive motor 211 is connected to the first synchronous pulley 212, the first synchronous pulley 212 is connected to the second synchronous pulley 213 through the first synchronous belt, and the rotating shaft 214 is connected to the second synchronous pulley 213 and rotates with the second synchronous pulley 213. The moving block 215 is screwed to the rotating shaft 214, the free end of the thrust rod 216 is connected to the moving block 215 and is slidably connected to the moving block 215 along the radial direction of the rotating shaft 214, and the second end of the thrust rod 216 is connected to the torque sensor 22 through the first coupling. Among them, the drive motor 211 serves as a power source, transmits power to the moving block 215 through the first synchronous pulley 212, the second synchronous pulley 212, and the rotating shaft 214, and then drives the thrust rod 216 to push the drive head of the torque wrench to rotate. The moving block 215 moves under the drive of the rotating shaft 214, pushes the thrust rod 216 to apply torque to the drive head of the torque wrench, and at the same time realizes precise position control through cooperation with the rotating shaft 214.

[0061] Specifically, the length direction of the thrust rod 216 is perpendicular to the length direction of the rotating shaft 214. The driving motor 211 drives the first synchronous pulley 212 to rotate. The first synchronous pulley 212 drives the second synchronous pulley 213 to rotate through the first synchronous belt. The second synchronous pulley 213 further drives the rotating shaft 214 to rotate. The rotating shaft 214 drives the moving block 215 to move, converting the rotational motion into a lateral movement. The moving block 215 drives the torque sensor 22 to rotate through the thrust rod 216. The torque sensor 22 continues to drive the second coupling to rotate. The second coupling finally drives the calibration adapter 23 to rotate. When the torque wrench is connected to the calibration adapter 23, the calibration adapter 23 can twist the driving head of the torque wrench. This driving mechanism 21 can increase the output torque of the driving motor 211 and is applicable to the calibration adapter 23 and torque wrench that require a large torque to be twisted, such as 1000 NM standard positioning adapters, 3000 NM standard positioning adapters, etc. The first synchronous belt is not shown in the figure.

[0062] See also Figure 6 , in some embodiments, the moving block 215 includes a moving body 2151 and a screwing block 2152. The screwing block 2152 is fixedly connected to the moving body 2151, and the screwing block 2152 is screwed to the rotating shaft 214. The moving body 2151 is provided with a mounting hole 2153 and a first through hole 2154. The mounting hole 2153 is for the free end of the thrust rod 216 to slide and insert. The first through hole 2154 is for the rotating shaft 214 to pass through, and the diameter of the first through hole 2154 is larger than the diameter of the rotating shaft 214. The screwing block 2152 cooperates with the rotating shaft 214 to achieve precise position control. Among them, the screwing block 2152 is provided with an internal thread hole and is screwed to the rotating shaft 214. The screwing block 2152 can be arranged on the end face of the moving body 2151. For example, it can be arranged on any one of the opposite end faces of the moving body 2151 along the axial direction of the rotating shaft 214. The first through hole 2154 is used to avoid the rotating shaft 214. The size of the mounting hole 2153 matches the width and height of the thrust rod 216. For example, the width of the mounting hole 2153 is slightly larger than the width of the thrust rod 216, and the height of the mounting hole 2153 is slightly larger than the height of the thrust rod 216, to avoid the movement and rotation of the thrust rod 216.

[0063] See also Figure 7, in some embodiments, the limiting mechanism 24 includes a lateral movement component 241, a vertical movement component 242, and a reaction force member 243. The lateral movement component 241 is respectively connected to the vehicle body 1 and the vertical movement component 242 to drive the vertical movement component 242 to move laterally. A part of the vertical movement component 242 extends out of the workbench surface 111 and is fixedly connected to the reaction force member 243 to drive the reaction force member 243 to move vertically. The reaction force member 243 is arranged outside the workbench surface 111 for abutting against the operating handle of the torque wrench. Among them, the lateral movement component 241 is used to drive the vertical movement component 242 and the reaction force member 243 to move laterally, and can adjust the distance between the reaction force member 243 and the calibration adapter 23, that is, to adapt to the operating handles of torque wrenches with different lengths. The vertical movement component 242 is used to drive the reaction force member 243 to move vertically, and can adjust the relative height between the reaction force member 243 and the calibration adapter 23, that is, to adapt to the operating handles of torque wrenches with different heights. The reaction force member 243 provides a reverse acting force during the torque application process to ensure the stability and accuracy of the torque application and prevent the torque wrench from shaking during rotation.

[0064] Refer to together Figure 8 , in some embodiments, the lateral movement component 241 includes a first driving member 2411, a lead screw 2412, a sliding member 2413, a first slider 2414, a first slide rail 2415, and two limiting members 2416. The driving shaft of the first driving member 2411 is connected to the lead screw 2412 to drive the lead screw 2412 to rotate. The sliding member 2413 is screwed to the lead screw 2412 and fixedly connected to the first slider 2414 to drive the first slider 2414 to move. The first slider 2414 is slidably connected to the first slide rail 2415, and the two limiting members 2416 are respectively arranged at opposite ends in the length direction of the first slide rail 2415 to limit the first slider 2414. Among them, the first driving member 2411 drives the lead screw 2412 to rotate, the lead screw 2412 drives the sliding member 2413 to move, and the sliding member 2413 drives the first slider 2414 to move along the first slide rail 2415. The length direction of the lead screw is the same as the length direction of the first slide rail 2415. The two limiting members 2416 define the movement range of the first slider 2414 to prevent the first slider 2414 from detaching from the slide rail.

[0065] Refer to together Figure 9, in some embodiments, the up-and-down moving component 242 includes a second driving member 2421, a transfer component 2422, a second slider 2423 and a second slide rail 2424. The second slide rail 2424 is fixedly connected to the first slider 2414, and the second slider 2423 is slidably connected to the second slide rail 2424. The second driving member 2421 is fixedly installed on the first slider 2414, and the driving shaft of the second driving member 2421 is connected to the transfer component 2422. The transfer component 2422 changes the driving direction of the second driving member 2421 and is connected to the second slider 2423 to drive the second slider 2423 to move. The reaction member 243 is fixedly connected to the second slider 2423. The length direction of the second slide rail 2424 is perpendicular to that of the first slide rail 2415. Wherein, the second driving member 2421 drives the transfer component 2422 to rotate, and the transfer component 2422 converts the rotational motion of the second driving member 2421 into a linear motion, thereby driving the second slider 2423 to move along the second slide rail 2424. The second slider 2423 drives the reaction member 243 to rise or fall to achieve leveling.

[0066] Refer to together Figure 10 , in some embodiments, the transfer component 2422 includes a bracket 2422-1, a third synchronous pulley 2422-2, a fourth synchronous pulley 2422-3, a second synchronous belt, a transmission screw 2422-4, a nut 2422-5 and a connecting member 2422-6. The bracket 2422-1 is fixedly connected to the first slider 2414. The second driving member 2421 is fixedly installed on the bracket 2422-1. The driving shaft of the second driving member 2421 is connected to the third synchronous pulley 2422-2. The fourth synchronous pulley 2422-3 is connected to the third synchronous pulley 2422-2 through the second synchronous belt. The transmission screw 2422-4 is connected to the fourth synchronous pulley 2422-3 and rotates with the fourth synchronous pulley 2422-3. The nut 2422-5 is connected to the transmission screw 2422-4. The connecting member 2422-6 is fixedly connected to the nut 2422-5 and the second slider 2423 respectively to drive the second slider 2423 to move. Wherein, the bracket 2422-1 is used to fix the second driving member 2421, the third synchronous pulley 2422-2, the fourth synchronous pulley 2422-3 and the transmission screw 2422-4. The second driving member 2421 drives the third synchronous pulley 2422-2 to rotate. The third synchronous pulley 2422-2 drives the fourth synchronous pulley 2422-3 to rotate through the second synchronous belt. The fourth synchronous pulley 2422-3 drives the transmission screw 2422-4 to rotate. The transmission screw 2422-4 drives the nut 2422-5 and the connecting member 2422-6 to move synchronously. The connecting member 2422-6 drives the second slider 2423 to move along the second slide rail 2424. The second slider 2423 drives the reaction member 243 to rise or fall to achieve leveling. The second synchronous belt is not shown in the figure.

[0067] In some embodiments, the workbench surface 111 is provided with a through hole 112 which extends in the same direction as the moving direction of the lateral moving assembly 241. The through hole 112 is used to avoid the reaction force member 243 and provide a moving space for the reaction force member 243.

[0068] Refer to Figure 11 , in some embodiments, the reaction force member 243 includes a fixing column 2431 and a baffle 2432. The upper part of the fixing column 2431 is fixedly connected to the baffle 2432, and the lower part of the fixing column 2431 passes through the through hole 112 and is fixedly connected to the vertical moving assembly 242 for lifting and lowering the baffle 2432.

[0069] In some embodiments, the baffle 2432 is provided with at least one slot 2433 for the operating handle of the torque wrench to be placed in. The slot 2433 opens upward for easy placement of the torque wrench.

[0070] As Figure 1 and Figure 2 shown, in some embodiments, the vehicle body 1 includes a box body 11, a plurality of feet 12, a plurality of traveling wheels and several push rods. The workbench surface 111 is the top plate of the box body 11. The plurality of feet 12 are symmetrically connected to the bottom of the box body 11. The plurality of traveling wheels are symmetrically installed at the bottom of the box body 11 and each traveling wheel is provided with a foot brake. The push rod is fixedly connected to the upper part or the top of the box body 11 for easy holding. The push rod can be used for an operator to hold and apply force to push the vehicle body 1 forward. The box body 11 protects various components inside the equipment from damage caused by external factors such as dust and moisture, and can also play a certain electromagnetic shielding role to reduce the influence of external electromagnetic interference on the equipment accuracy. The workbench surface 111 provides a flat and stable operation platform for the calibration operation of the torque wrench, facilitating the placement of tools such as the torque wrench, the reaction force member 243 and the calibration adapter 23, and facilitating the operation of the operator. The feet 12 are used to adjust the height and levelness of the vehicle body. By adjusting the height of the feet 12, the attitude of the vehicle body can be changed, so that the equipment can remain stable in different working sites and ensure the accuracy of torque calibration. The traveling wheels, the foot brakes and the feet 12 can facilitate the movement and stable placement of the vehicle body 1 to improve its overall flexibility. The traveling wheels, the foot brakes and the push rod are not shown in the figure.

[0071] In some embodiments, the vehicle body 1 further includes a power supply box, a power switch 13, a power indicator light 14, and a power socket 15. The power supply box is disposed inside the box body 11 and is respectively connected to the main control unit 3, the driving mechanism 21, the torque sensor 22, and the limiting mechanism 24. The power switch 13, the power indicator light 14, and the power socket 15 are respectively connected to the power supply box and are respectively disposed on the outer side surface of the box body 11. Among them, the power switch 13 controls the on and off of the power supply of the device. The power indicator light 14 facilitates the operator to determine whether the device is normally powered. The power socket 15 provides an external power supply interface for the device, enabling the device to access the commercial power supply for operation. The power socket 15 is a telescopic power socket 15. Connect the power socket 15 to the power supply, and then turn on the power switch 13. When the power indicator light 14 lights up, the entire device is powered on. Among them, the power supply box is not shown in the figure.

[0072] In some embodiments, the vehicle body 1 further includes a plurality of storage drawers 16. The storage drawers 16 are slidably connected to the box body 11 to facilitate the placement of tools. The storage drawers 16 can facilitate the placement of common tools such as torque wrenches by personnel, so as to expand the diversity of the overall functions, facilitate the operator to access and manage the tools, and keep the workbench surface 111 clean and tidy. Among them, the storage drawers 16 are generally disposed at the lower part of the box body 11 and avoid the structural settings of the torque automatic detection module 2.

[0073] In some embodiments, the main control unit 3 includes a display 31 and a label printer 32. The display 31 is connected to the label printer 32, and the display 31 is further respectively connected to a keyboard 33 and a mouse 34. Among them, the display 31, the label printer 32, the keyboard 33, and the mouse 34 are respectively disposed on the workbench surface 111. The main control unit 3 is connected through components such as the display 31, the label printer 32, the keyboard 33, and the mouse 34 to realize human-machine interaction; at the same time, it communicates with each sensor and the driving mechanism 21 in the torque automatic detection module 2 to control the operation of the device. Among them, the display 31 is used to display information such as the operation status of the device and the torque detection result, facilitating the operator to observe and monitor the operation of the device. The label printer 32 prints labels of the torque calibration result according to the instructions of the main control unit, facilitating the identification and management of the calibrated torque wrench.

[0074] In some embodiments, the calibration adapter 23 includes four components, namely, a 3000 NM calibration positioning adapter, a 1000 NM calibration positioning adapter, a 100 NM calibration positioning adapter, and a 10 NM calibration positioning adapter. The number of torque sensors 22 is the same as that of the calibration adapters 23. The 3000 NM calibration positioning adapter and the 1000 NM calibration positioning adapter are arranged on the same side of the vehicle body 1 and need to be used in cooperation with the thrust rod 216. The 100 NM calibration positioning adapter and the 10 NM calibration positioning adapter are arranged on the other side of the vehicle body 1 and can be directly connected to the drive motor 211. It can be understood that in some other embodiments, the number and models of the calibration adapters 23 can be adjusted according to actual needs, and the present invention does not limit this here.

[0075] In some embodiments, the torque wrench automatic calibration and analysis device further includes an identity authentication module. The identity authentication module is connected to the main control unit 3 and is arranged on the workbench surface 111. The identity authentication module can be used to confirm the identity information of the operator. Among them, the identity authentication module is not shown in the figure.

[0076] In some embodiments, the torque wrench automatic calibration and analysis device further includes a tool identification module 4. The tool identification module 4 is connected to the main control unit 3 and is arranged on the workbench surface 111. The tool identification module 4 can be used to confirm the information of the torque wrench.

[0077] In some embodiments, the torque wrench automatic calibration and analysis device further includes an identity authentication module and a tool identification module 4. The identity authentication module and the tool identification module 4 are respectively connected to the main control unit 3 and are arranged on the workbench surface 111. The identity authentication module can be used to confirm the identity information of the operator, and the tool identification module 4 can be used to confirm the information of the torque wrench and, through the main control unit 3, confirm whether the identity information of the operator corresponds and matches the information of the torque wrench. It can be understood that when the torque wrench is issued, the identity information of the operator and the information of the issued torque wrench have been stored in the system. And when the torque wrench is recycled and calibrated after use, the identity information of the original operator is matched again to standardize the operation.

[0078] In some embodiments, the identity authentication module includes a monitoring camera and a card reader for identifying the operator's information. The tool identification module 4 includes a barcode scanner for identifying the information of the torque wrench. The card reader, the identity identification device, and the monitoring camera are respectively connected to the main control unit 3 to ensure the matching of the operator and the torque wrench. Among them, the card reader checks the work card of the certified operator, and the monitoring camera confirms the operator. Only after the person and certificate authentication is passed can the main control unit 3 open the operation permission for the inspection work, and the barcode scanner performs barcode authentication on the torque wrench.

[0079] The torque wrench automatic calibration and analysis method of the present invention is as follows. Using the torque wrench automatic calibration and analysis device of any of the above embodiments, it includes:

[0080] S1: The operator's identity information is identified through a surveillance camera and a card reader. A barcode scanner is used to scan the torque wrench label to identify the torque wrench's tool information. This tool information includes at least the torque wrench's range. The card reader verifies the operator's ID card, and the surveillance camera confirms the operator and identifies their portrait. Tool information may also include the torque wrench's model, representative number, and other information. This information can be configured to uniquely identify the tool. At least the torque wrench's range is displayed on the display for the operator to observe.

[0081] S2: If the identity information matches the tool information, the host computer 3 grants the operating authority. If the identity information does not match the tool information, the host computer 3 restricts the operation. The matching of identity information and tool information means that the operator's work card information, the operator's portrait information, and the torque wrench's tool information are the same as those originally recorded in the host computer 3. The host computer 3 grants the operating authority only after the identity information and tool information match. Conversely, if the operator's work card information, the operator's portrait information, and the torque wrench's tool information are consistent with those originally recorded in the host computer 3, for example, if the operator's work card does not match the operator's portrait information, the operator's work card does not match the torque wrench's tool information, or the operator's portrait information does not match the torque wrench's tool information, then the host computer 3 restricts the operation.

[0082] S3: Connect the torque wrench's drive head to the matching calibration adapter 23 according to the measuring range, adjust the position of the limit mechanism 24 to accommodate the torque wrench's operating handle, and place the operating handle on the limit mechanism 24. For example, if the torque wrench's measuring range is 10 NM, place the torque wrench's drive head on the 10 NM calibration adapter; if the torque wrench's measuring range is 1000 NM, place the torque wrench's drive head on the 1000 NM calibration adapter.

[0083] The structure of the limit assembly is described above. The method for adjusting the position of the limit mechanism 24 is as follows: operate the main control unit 3 to start the first driving member 2411. The first driving member 2411 drives the lead screw 2412 to rotate. The lead screw 2412 drives the sliding member 2413 to move. The sliding member 2413 drives the first slider 2414 to move along the first slide rail 2415. The distance between the reaction member 243, the baffle 2432, and the calibration adapter 23 can be adjusted to adapt to the length of the operating handle. Continue to start the second driving member 2421. The second driving member 2421 drives the adapter assembly 2422 to rotate. The adapter assembly 2422 converts the rotational motion of the second driving member 2421 into linear motion, thereby driving the second slider 2423 to move along the second slide rail 2424. The second slider 2423 drives the baffle 2432 of the reaction member 243 to rise or fall to achieve leveling and adapt to the height of the operating handle.

[0084] S4: The operator operates the main control unit 3 to start the driving head of the driving mechanism 21 of the torque wrench. Meanwhile, the torque sensor 22 records the torque information of the driving mechanism 21, and the limiting mechanism 24 restricts the rotation of the operating handle of the torque wrench. Among them, by twisting the driving head of the torque wrench through the driving mechanism 21, there is no need to manually twist the operating handle as in the prior art, which improves the degree of automation.

[0085] S5: The torque sensor 22 synchronously uploads the torque information to the main control unit 3 for storage and observation. The main control unit 3 includes a display 31 and a label printer 32. The torque information detected by the torque sensor 22 is transmitted to the display 31 for display, and at the same time, it is printed out by the label printer 32 for the operator to observe. The main control unit 3 can automatically compare the torque information to determine whether it is accurate with the originally recorded information. The operator can also compare according to the torque information and the originally recorded information. If it is found that the torque information is inaccurate, the operator can manually calibrate it and then continue to use the torque wrench automatic calibration and analysis device for calibration. Repeat this process until the torque information is accurate and can be stored in the warehouse.

[0086] By implementing the present invention, the following beneficial effects are achieved:

[0087] The torque wrench automatic calibration and analysis device of the present invention uses the driving mechanism 21 to drive the driving head of the torque wrench to perform a twisting action, and restricts the circumferential movement of the operating handle of the torque wrench through the limiting mechanism 24. At the same time, the torque sensor 22 is used to collect the output torque information of the driving mechanism 21 in real time, and this output torque information is used as the actual output torque value of the torque wrench. The limiting mechanism 24 adopts an adjustable structure design, and its constraint range has a linear adaptation relationship with the length of the torque wrench handle, and can be compatible with torque wrenches of different nominal size specifications. The present invention effectively solves the drawback of customizing tooling for torque wrenches of different specifications in the traditional detection scheme, enables the detection system to have flexible adaptation capabilities, significantly improves the detection efficiency, and reduces the equipment purchase and operation and maintenance costs.

[0088] The torque wrench automatic calibration and analysis method of the present invention uses the torque wrench automatic calibration and analysis device. After the operator and the torque wrench are matched, automatic detection is performed, which improves the accuracy and reliability of the torque calibration of the torque wrench, improves the detection efficiency, and reduces the labor cost.

[0089] It can be understood that the above embodiments only represent the preferred embodiments of the present invention, and the description thereof is relatively specific and detailed. However, it should not be construed as a limitation on the scope of the patent for the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, the above embodiments or technical features can be freely combined, and several deformations and improvements can also be made. These all belong to the protection scope of the present invention, that is, the embodiments described in "in some embodiments" can be freely combined with any of the above or below embodiments. Therefore, all equivalent transformations and modifications made to the scope of the claims of the present invention shall fall within the scope covered by the claims of the present invention.

Claims

1. An automatic calibration and analysis device for a torque wrench, characterized in that, It includes a vehicle body (1) provided with a workbench surface (111), a torque automatic detection module (2) and a main control unit (3). The torque automatic detection module (2) and the main control unit (3) are both integrated on the vehicle body (1), and the main control unit (3) is connected to the torque automatic detection module (2) and controls the torque automatic detection module (2). The torque automatic detection module (2) includes a number of driving mechanisms (21), a number of torque sensors (22), a number of calibration adapters (23) and a limiting mechanism (24). The number of driving mechanisms (21) are fixedly installed inside the vehicle body (1). The driving shaft of each driving mechanism (21) is connected to the first end of the torque sensor (22). The second end of each torque sensor (22) is connected to the calibration adapter (23). Each calibration adapter (23) penetrates through the workbench surface (111) and is exposed outside the workbench surface (111) to twist the driving head of the torque wrench. The limiting mechanism (24) is slidably connected to the vehicle body (1) and partially penetrates through the workbench surface (111) and is exposed outside the workbench surface (111) to limit the rotation of the operating handle of the torque wrench. The main control unit (3) is respectively connected to the driving mechanism (21), the torque sensor (22) and the limiting mechanism (24), and controls the driving mechanism (21) to finally twist the driving head of the torque wrench, and at the same time collects the torque information of the driving mechanism (21) measured by the torque sensor (22).

2. The torque wrench automatic calibration analysis device according to claim 1, characterized in that The driving mechanism (21) includes a driving motor (211). The driving shaft of the driving motor (211) is connected to the first end of the torque sensor (22) through a first coupling. The second end of the torque sensor (22) is connected to the calibration adapter (23) through a second coupling.

3. The torque wrench automatic calibration and analysis device according to claim 2, characterized in that, The driving mechanism (21) further includes a first synchronous pulley (212), a second synchronous pulley (213), a first synchronous belt, a rotating shaft (214), a moving block (215) and at least one thrust rod (216). The driving shaft of the driving motor (211) is connected to the first synchronous pulley (212). The first synchronous pulley (212) is connected to the second synchronous pulley (213) through the first synchronous belt. The rotating shaft (214) is connected to the second synchronous pulley (213) and rotates with the second synchronous pulley (213). The moving block (215) is screwed to the rotating shaft (214). The free end of the thrust rod (216) is connected to the moving block (215) and is slidably connected to the moving block (215) along the radial direction of the rotating shaft (214). The second end of the thrust rod (216) is connected to the torque sensor (22) through the first coupling to drive the torque sensor (22) to rotate.

4. The torque wrench automatic calibration and analysis device according to claim 3, characterized in that The moving block (215) comprises a moving body (2151) and a screw-connecting block (2152), wherein the screw-connecting block (2152) is fixedly connected to the moving body (2151), and the screw-connecting block (2152) is screw-connected to the rotating shaft (214); The movable body (2151) is provided with a mounting hole (2153) and a first through hole (2154), wherein the mounting hole (2153) is for the free end of the thrust rod (216) to be slidably inserted, and the first through hole (2154) is for the rotating shaft (214) to pass through, and the diameter of the first through hole (2154) is larger than the diameter of the rotating shaft (214).

5. The torque wrench automatic calibration and analysis device according to claim 1, characterized in that, The limiting mechanism (24) comprises a lateral movement component (241), an up-down movement component (242) and a reaction member (243); the lateral movement component (241) is connected to the vehicle body (1) and the up-down movement component (242) respectively, and is used to drive the up-down movement component (242) to move lateral; the up-down movement component (242) partially passes through the outside of the working table (111) and is fixedly connected to the reaction member (243), and is used to drive the reaction member (243) to move up and down; the reaction member (243) is arranged outside the working table (111) and is used to abut against the operating handle of the torque wrench.

6. The torque wrench automatic calibration and analysis device according to claim 5, characterized in that, The transverse movement assembly (241) includes a first driving member (2411), a lead screw (2412), a sliding member (2413), a first slider (2414), a first slide rail (2415) and two limiting members (2416). The driving shaft of the first driving member (2411) is connected to the lead screw (2412) to drive the lead screw (2412) to rotate; the sliding member (2413) is screwed to the lead screw (2412) and fixedly connected to the first slider (2414) to drive the first slider (2414) to move. The first slider (2414) is slidably connected to the first slide rail (2415). The two limiting members (2416) are respectively arranged at opposite ends of the length direction of the first slide rail (2415) to limit the first slider (2414).

7. The torque wrench automatic calibration and analysis device according to claim 6, characterized in that The up-and-down moving component (242) includes a second driving member (2421), a switching component (2422), a second slider (2423) and a second slide rail (2424), wherein the second slide rail (2424) is fixedly connected to the first slider (2414), and the second slider (2423) is slidably connected to the second slide rail (2424); the second driving member (2421) is fixedly mounted on the first slider (2414), and the driving shaft of the second driving member (2421) is connected to the switching component (2422), the switching component (2422) changes the driving direction of the second driving member (2421) and is connected to the second slider (2423) to drive the second slider (2423) to move, and the reaction member (243) is fixedly connected to the second slider (2423); The length of the second slide rail (2424) and the length direction of the first slide rail (2415) are perpendicular to each other.

8. The torque wrench automatic calibration and analysis device according to claim 7, characterized in that, The adapter assembly (2422) includes a bracket (2422-1), a third synchronous wheel (2422-2), a fourth synchronous wheel (2422-3), a second synchronous belt, a transmission screw (2422-4), a nut (2422-5) and a connecting member (2422-6). The bracket (2422-1) is fixedly connected to the first slider (2414). The second driving member (2421) is fixedly mounted on the bracket (2422-1). The driving shaft of the second driving member (2421) is connected to the third synchronous wheel (2422-2). Then, the fourth synchronous wheel (2422-3) is connected to the third synchronous wheel (2422-2) through the second synchronous belt, the transmission screw (2422-4) is connected to the fourth synchronous wheel (2422-3) and rotates with the fourth synchronous wheel (2422-3), the nut (2422-5) is connected to the transmission screw (2422-4), and the connecting member (2422-6) is fixedly connected to the nut (2422-5) and the second slider (2423) respectively to drive the second slider (2423) to move.

9. The torque wrench automatic calibration and analysis device according to claim 5, wherein The work surface (111) is provided with a through hole (112), and the through hole (112) extends in the same direction as the moving direction of the transverse moving component (241).

10. The torque wrench automatic calibration and analysis device according to claim 9, wherein, The reaction member (243) includes a fixed column (2431) and a baffle (2432), wherein the upper portion of the fixed column (2431) is fixedly connected to the baffle (2432), and the lower portion of the fixed column (2431) passes through the through hole (112) and is fixedly connected to the up-and-down moving assembly (242) for lifting and lowering the baffle (2432).

11. The torque wrench automatic calibration and analysis device according to claim 10, wherein The baffle (2432) is provided with at least one slot (2433) for receiving the operating handle of the torque wrench.

12. The torque wrench automatic calibration and analysis device according to any one of claims 1-11, characterized in that, The vehicle body (1) comprises a box body (11), a plurality of supporting legs (12), a plurality of running wheels and a plurality of push rods; the work surface (111) is the top plate of the box body (11); the plurality of supporting legs (12) are symmetrically connected to the bottom of the box body (11); the plurality of running wheels are symmetrically installed at the bottom of the box body (11) and each of the running wheels is provided with a foot brake; the push rod is fixedly connected to the upper part or top of the box body (11) for easy handholding.

13. The torque wrench automatic calibration analysis device according to claim 12, characterized in that, The vehicle body (1) further comprises a power supply box, a power switch (13), a power indicator light (14) and a power socket (15); the power supply box is arranged inside the box (11) and is respectively connected to the main control machine (3), the driving mechanism (21), the torque sensor (22) and the limit mechanism (24); the power switch (13), the power indicator light (14) and the power socket (15) are respectively connected to the power supply box and are respectively arranged on the external side of the box (11).

14. The torque wrench automatic calibration and analysis device according to any one of claims 1-11, characterized in that, The calibration adapter (23) includes four parts, namely a 3000 NM calibration position conversion head, a 1000 NM calibration position conversion head, a 100 NM calibration position conversion head, and a 10 NM calibration position conversion head; The number of the torque sensors (22) is the same as that of the calibration adapter (23).

15. The torque wrench automatic calibration and analysis device according to any one of claims 1-11, characterized in that, It further includes an identity authentication module, which is connected to the main control unit (3) and is arranged on the workbench surface (111); And / or, it further includes a tool identification module (4), which is connected to the main control unit (3) and is arranged on the workbench surface (111).

16. The torque wrench automatic calibration and analysis device according to claim 15, characterized in that, The identity authentication module includes a monitoring camera and a card swiping machine for identifying operator information. The tool identification module (4) includes a barcode scanner for identifying the torque wrench information. The card swiping machine, the identity recognition device, and the monitoring camera are respectively connected to the main control unit (3) to ensure the matching of the operator and the torque wrench.

17. An automatic calibration analysis method for a torque wrench, characterized in that, Using the torque wrench automatic calibration and analysis device according to claim 16, comprising: S1: Identify the identity information of the operator through the monitoring camera and the card swiping machine, and scan the label of the torque wrench with the barcode scanner to identify the tool information of the torque wrench; Wherein, the tool information at least includes the range of the torque wrench; S2: If the identity information matches the tool information, the main control unit (3) opens the operation permission; if the identity information does not match the tool information, the main control unit (3) restricts the operation; S3: According to the range, connect the driving head of the torque wrench to the matching calibration adapter (23), and adjust the position of the limit mechanism (24) to adapt to the operating handle of the torque wrench, and place the operating handle on the limit mechanism (24); S4: The operator operates the main control unit (3) to start the driving mechanism (21) to twist the driving head of the torque wrench. At the same time, the torque sensor (22) records the torque information of the driving mechanism (21), and the limit mechanism (24) restricts the rotation of the operating handle of the torque wrench; S5: The torque sensor (22) synchronously uploads the torque information to the main control unit (3) for storage and observation.

Images