Full-automatic torque sensor calibration device and calibration system
Through the fully automatic torque sensor calibration device, the torque sensor is directly loaded using the servo control system, which solves the problems of slow loading speed and limited calibration range in the prior art, and achieves efficient and fast torque sensor calibration.
Patent Information
- Application Number
- CN202411993531.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-03-04
AI Technical Summary
The existing torque calibration machine methods are limited by the number of weights and loading methods, and can only complete the calibration of specific torque values, which is slow to load, resulting in low efficiency.
It adopts a fully automatic torque sensor calibration device, including a mobile cabinet, an electric control system, a loading transmission system and an adjustable reaction force device. The servo control system is used to directly load the torque sensor to achieve fully automatic calibration.
Improves the efficiency of torque sensor calibration, broadens the calibration range, avoids the problem of slow loading, and achieves fast and accurate calibration of torque sensors.
Smart Images

Figure CN119555278A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of torque calibration, and in particular to a fully automatic torque sensor calibration device and a calibration system. Background Art
[0002] Torque standard machine: a device that uses the lever weight loading principle to generate standard torque and calibrate products such as torque sensors or standard torque wrenches with torque sensors. Standard torque wrench: A device used to generate standard torque and calibrate a torque wrench tester with a torque sensor.
[0003] In the patents entitled "A torque standard machine for torque sensor calibration, publication number CN112985690A" and "Self-calibration method and torque test method thereof, publication number CN114264406A", it is proposed to use a torque standard (base) machine or a loading device to calibrate the sensor. However, the torque calibration machine method is limited by the number of weights and the loading method, and can only complete the calibration of a specific torque value. In addition, the loading speed is slow, resulting in low efficiency. Therefore, a fully automatic torque sensor calibration device and calibration system are proposed. Summary of the invention
[0004] The object of the present invention is to provide a fully automatic torque sensor calibration device and calibration system to solve the problems raised in the above background technology.
[0005] To achieve the above object, the present invention provides the following technical solutions: a fully automatic torque sensor calibration device, comprising a mobile cabinet, an electric control system is installed inside the mobile cabinet, a power supply module is installed inside the mobile cabinet, a loading transmission system is fixedly connected to the mobile cabinet, the loading transmission system also includes a mechanical transmission mechanism and an adjustable reaction force device, and a collection system is installed on the mechanical transmission mechanism; Wherein, the mechanical transmission structure includes a servo motor, the servo motor is fixedly connected to the mobile cabinet, the mobile cabinet is fixedly connected to a carrying box, the interior of the carrying box is fixedly connected to a sensor base via screws, the output shaft of the servo motor is fixedly connected to a lead screw, one end of the lead screw away from the servo motor is rotatably connected to the interior of the sensor base, the exterior of the lead screw is movably connected to a swing rod via a universal shaft, and one end of the swing rod away from the lead screw is sleeved on the exterior of the sensor base; The adjustable reaction force device comprises two fixing seats, both of which are fixedly connected to the carrying box, two guide rods are fixedly connected to one side adjacent to the two fixing seats, a slider is slidably connected to the outside of the guide rod, two reaction force arms are fixedly connected to the slider, and the two reaction force arms are staggered; Among them, the acquisition system includes a measured torque sensor, which is movably connected to the sensor base. A standard torque wrench is clamped on the measured torque sensor, and one end of the standard torque wrench away from the measured torque sensor is clamped between the two reaction arms.
[0006] Preferably, the reaction arm is rectangular, a plurality of positioning grooves are provided on the outside of the rectangular reaction arm, and the opening positions of the positioning grooves of two rectangular reaction arms are arranged opposite to each other.
[0007] Preferably, elastic and wear-resistant rubber is integrally formed inside the positioning groove.
[0008] Preferably, a triangular abutment plate is fixedly connected to a side of the elastic wear-resistant rubber away from the positioning groove.
[0009] Preferably, a display interaction system is installed on the mobile cabinet, and the display interaction system includes a touch display, and the touch display is installed on the mobile cabinet by screws. A keyboard and mouse are installed inside the mobile cabinet, and a hand control box module is installed outside the mobile cabinet.
[0010] Preferably, the electric control system includes an industrial computer and a servo drive, and the industrial computer and the servo drive are both installed inside the mobile cabinet. The industrial computer and the servo drive are both electrically connected to the keyboard, mouse, touch display and hand control box module, and the power supply module is respectively electrically connected to the industrial computer, servo drive, keyboard, mouse, touch display and hand control box module.
[0011] Preferably, a moving hole matching the guide rod is formed on the outside of the sliding block, and the inner wall of the moving hole and the outer wall of the guide rod are both configured as rough surfaces.
[0012] Preferably, a storage cavity is opened inside the elastic wear-resistant rubber, and the storage cavity is filled with electrorheological fluid. The triangular abutment plate located inside the positioning groove is divided into an upper connecting block and a lower connecting block. The upper connecting block is made of an electromagnet, and the lower connecting block is made of an iron adsorption block.
[0013] The present invention also provides a fully automatic torque sensor calibration system, including: an industrial computer, a level conversion module, a power control module, a touch display, a keyboard and a mouse, an adjustable reaction force device, a standard torque wrench, a servo driver, a servo motor, a mechanical transmission mechanism, an abnormal protection device, and a torque sensor to be measured; Among them, the industrial computer and servo drive are used for the control of the entire system and data processing, judging the current calibration status and outputting the servo motor control signal; Among them, the mechanical transmission mechanism and the adjustable reaction force device are used to receive the control signals loaded by the industrial computer and the servo driver, transmit the output torque of the servo motor to the torque sensor to be measured, and calibrate the standard torque wrench; Among them, the standard torque wrench and the abnormal protection device are used to detect the actual torque value applied to the torque sensor under test, and compare it with the output of the torque sensor under test to obtain the calibration result; Among them, the touch display, keyboard and mouse, and hand control box modules are used to display the loading process and perform signal human-computer interaction; Among them, the level conversion module and the power control module are used to supply power to each component.
[0014] Preferably, the full amount detected by the torque sensor is divided into 20%, 40%, 60%, 80% and 100%.
[0015] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, a standard torque wrench is used to realize full-automatic calibration of a torque sensor, so that the standard torque wrench can not only calibrate a torque wrench tester, but also calibrate a torque sensor, thereby expanding the application scope of the standard torque wrench.
[0016] In the present invention, a servo control system is used to directly load the torque sensor, thereby avoiding the problem of slow loading when the torque sensor is calibrated using a torque standard (reference) machine, and improving product calibration efficiency.
[0017] In the present invention, a servo control system is used to directly load the torque sensor. The torque loading process changes continuously and the torque calibration point can be changed arbitrarily, which solves the problem that only specific torque values can be calibrated when the torque sensor is calibrated using a torque standard (reference) machine, and broadens the calibration range. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is one of the three-dimensional structural schematic diagrams of an embodiment of the present invention; Figure 2 This is a second schematic diagram of a three-dimensional structure in an embodiment of the present invention; Figure 3 The third schematic diagram of the three-dimensional structure in the embodiment of the present invention; Figure 4 Schematic diagram of the structure of the lead screw and the swing rod in the embodiment of the present invention; Figure 5 It is a front view structural schematic diagram of an embodiment of the present invention; Figure 6 It is a schematic structural diagram of a square reaction arm and a positioning groove in an embodiment of the present invention; Figure 7 It is a structural schematic diagram of a triangular abutment plate in an embodiment of the present invention; Figure 8 A schematic diagram of the composition of a fully automatic torque sensor calibration system according to an embodiment of the present invention; Fig. 9 Schematic diagram of the system operation flow of the fully automatic torque sensor calibration system in an embodiment of the present invention; Fig.10 Schematic diagram of the information judgment process of the fully automatic torque sensor calibration system in an embodiment of the present invention; Fig.11 Schematic diagram of the detection process of the fully automatic torque sensor calibration system in an embodiment of the present invention.
[0019] In the figure: 1. Mobile cabinet; 2. Electric control system; 201. Industrial computer; 202. Servo drive; 3. Loading transmission system; 300. Fixed seat; 301. Guide rod; 302. Slider; 303. Reaction arm; 304. Positioning groove; 305. Elastic wear-resistant rubber; 306. Triangular abutment plate; 3001. Rocker; 3002. Sensor base; 3003. Lead screw; 3004. Servo motor; 4. Acquisition system; 401. Standard torque wrench; 402. Measured torque sensor; 501. Keyboard and mouse; 502. Touch display; 503. Hand control box module. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.
[0021] Embodiment 1: Figure 1 As shown, the present application is a fully automatic torque sensor calibration device, including a mobile cabinet 1, an electric control system 2 is installed inside the mobile cabinet 1, a power supply module 6 is installed inside the mobile cabinet 1, a loading transmission system 3 is fixedly connected to the mobile cabinet 1, the loading transmission system 3 also includes a mechanical transmission mechanism and an adjustable reaction force device, and a collection system 4 is installed on the mechanical transmission mechanism; The mechanical transmission structure includes a servo motor 3004, which is fixedly connected to the mobile cabinet 1, and a carrying box is fixedly connected to the mobile cabinet 1. The interior of the carrying box is fixedly connected to the sensor base 3002 by screws, and the output shaft of the servo motor 3004 is fixedly connected to a lead screw 3003, and one end of the lead screw 3003 away from the servo motor 3004 is rotatably connected to the interior of the sensor base 3002, and the outside of the lead screw 3003 is movably connected to a swing rod 3001 through a universal shaft, and one end of the swing rod 3001 away from the lead screw 3003 is sleeved to the outside of the sensor base 3002; The adjustable reaction force device includes two fixed seats 300, both of which are fixedly connected to the carrying box, two guide rods 301 are fixedly connected to the adjacent sides of the two fixed seats 300, a slider 302 is slidably connected to the outside of the guide rod 301, and two reaction force arms 303 are fixedly connected to the slider 302, and the two reaction force arms 303 are staggered; Among them, the acquisition system 4 includes a measured torque sensor 402, which is movably connected to the sensor base 3002, and a standard torque wrench 401 is clamped on the measured torque sensor 402. The end of the standard torque wrench 401 away from the measured torque sensor 402 is clamped between the two reaction arms 303.
[0022] Specifically, the electric control system 2 includes an industrial computer 201 and a servo drive 202, both of which are installed inside the mobile cabinet 1, and both of which are electrically connected to the keyboard, mouse 501, touch display 502 and hand control box module 503. The power supply module 6 is electrically connected to the industrial computer 201, the servo drive 202, the keyboard, mouse 501, the touch display 502 and the hand control box module 503, respectively, and the industrial computer 201, the servo drive 202, the keyboard, mouse 501, the touch display 502 and the hand control box module 503 are powered by the power supply module 6.
[0023] Specifically, during use, the staff connects the measured torque sensor 402 in series with the sensor base 3002, and fixes the measured torque sensor 402 on the sensor base 3002. After the fixation is completed, the output side of the standard torque wrench 401 is plugged into the measured torque sensor 402, and the other end of the standard torque wrench 401 is clamped between the two reaction arms 303. Before clamping the standard torque wrench 401 between the two reaction arms 303, the staff can manually adjust the position of the slider 302 on the guide rod 301 according to the length of the standard torque wrench 401. When the slider 302 is adjusted to a suitable position, the slider 302 will drive the reaction arm 303 to move to a specified position, thereby adapting to the placement of standard torque wrenches 401 of different lengths. After the placement is completed, the power supply module 6 is turned on to ensure that the entire system and the measured torque sensor 402 are working normally. The clockwise loading direction of the torque sensor 402 is selected so that there is a certain gap between the standard torque wrench 401 and the two reaction arms 303. If the standard torque wrench 401 is subjected to force, the electronic hand wheel on the manual control box module 503 adjusts the spacing to ensure that the standard torque wrench 401 is not subjected to force.
[0024] Specifically, a moving hole matching the guide rod 301 is opened on the outside of the slider 302, and the inner wall of the moving hole and the outer wall of the guide rod 301 are both set to a rough surface. By setting the rough surface, it can be ensured that when the slider 302 slides on the guide rod 301, the rough surface can increase the friction between the slider 302 and the guide rod 301, thereby avoiding the slider 302 from sliding randomly on the reaction arm 303.
[0025] like Figure 1 - Figure 3 As shown, a display interaction system is installed on the mobile cabinet 1, and the display interaction system includes a touch display 502, which is installed on the mobile cabinet 1 by screws. A keyboard and mouse 501 is installed inside the mobile cabinet 1, and a hand control box module 503 is installed outside the mobile cabinet 1.
[0026] Specifically, during the torque calibration process, the torque information collected by the sensor base 3002 is displayed through the touch display 502, the system is interacted with through the keyboard and mouse 501, and the start, stop and speed of the servo motor 3004 are controlled through the manual control box module 503.
[0027] Specifically, during the detection process, after the standard torque wrench 401 is placed, the servo motor 3004 is started to drive the screw 3003 to rotate. When the screw 3003 rotates, it will drive one end of the rocker 3001 to translate on the screw 3003. During the translation process, the rocker 3001 will twist the sensor base 3002, driving the sensor base 3002 and the torque sensor 402 to be measured to rotate to generate a certain torque. When the torque sensor 402 to be measured generates a certain torque, the torque information will be collected through the sensor base 3002. The sensor base 3002 is integrated with a torque data collector, which collects the generated torque information. After the collection is completed, the servo motor 3004 is adjusted to continue to rotate or pause, so as to calibrate the torque sensor 402 to be measured.
[0028] The technical solution in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: relative to the prior art, in the present application, the lead screw 3003 is driven to rotate by the servo motor 3004 as a whole, and during the rotation of the lead screw 3003, the pendulum rod 3001 is driven to twist the sensor base 3002, and in the process of twisting the sensor base 3002, the calibration work of the measured torque sensor 402 or the standard torque wrench 401 can be displayed step by step, and the calibration work is no longer limited by the number of weights and the loading method, thereby improving the loading speed and enhancing the calibration efficiency.
[0029] Embodiment 2: Considering that the two rod-shaped reaction arms 303 may cause the standard torque wrench 401 to move up and down between the two reaction arms 303 due to the gradually increasing torque during the process of limiting the standard torque wrench 401, the present application proposes the following technical solutions to solve the above technical problems, specifically: like Figure 6 As shown, the reaction arm 303 is rectangular, and a plurality of positioning grooves 304 are formed on the outside of the reaction arm 303 in the long direction, and the opening positions of the positioning grooves 304 of the two rectangular reaction arms 303 are arranged opposite to each other.
[0030] Specifically, during use, a plurality of positioning grooves 304 are provided on the outside of the two reaction arms 303, and the standard torque wrench 401 can be clamped and limited by the setting of the positioning grooves 304. When the standard torque wrench 401 is clamped and limited, it is possible to avoid the standard torque wrench 401 from shaking and becoming unstable between the two reaction arms 303 due to the change in force direction caused by the increase in torque.
[0031] Furthermore, an elastic wear-resistant rubber 305 is integrally formed inside the positioning groove 304 .
[0032] Specifically, the elastic wear-resistant rubber 305 can be provided to deform when the larger standard torque wrench 401 is inserted into the interior of the positioning groove 304, so that the slightly larger standard torque wrench 401 can be smoothly inserted into the interior of the positioning groove 304. After being inserted into the interior of the positioning groove 304, the elastic wear-resistant rubber 305 can also increase the friction between the standard torque wrench 401 and the elastic wear-resistant rubber 305, thereby further reducing the up and down shaking of the standard torque wrench 401.
[0033] The technical solution in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: relative to the first embodiment, in the present embodiment, the standard torque wrench 401 can be clamped and limited by the square reaction arm 303 in conjunction with the positioning groove 304 provided on the outside. In the process of clamping and limiting, the instability caused by the increase of stress when the standard torque wrench 401 is clamped between the two reaction arms 303 can be avoided.
[0034] Embodiment 3 Considering that during use, since the elastic wear-resistant rubber 305 is soft as a whole, the standard torque wrench 401 will be displaced due to the increase of torque when the soft elastic wear-resistant rubber 305 is clamped with the standard torque wrench 401, and when the standard torque wrench 401 is displaced, the correction of the torque will be further affected. In view of the above technical problems, the present application proposes the following technical solutions to solve the above technical problems, specifically: like Figure 7 As shown, a triangular abutting plate 306 is fixedly connected to one side of the elastic wear-resistant rubber 305 away from the positioning groove 304 .
[0035] Specifically, during use, when the standard torque wrench 401 is inserted into the interior of the positioning groove 304, the two triangular abutment plates 306 on the upper and lower sides will clamp the standard torque wrench 401, and because the triangular abutment plates 306 are triangular in shape and are tilted as a whole, after the side in contact with the standard torque wrench 401 abuts against the standard torque wrench 401, the obtuse end of the triangular abutment plate 306 away from the standard torque wrench 401 will be supported on the hard part of the reaction arm 303, forming a lever as a whole, and when the standard torque wrench 401 is forced to move to the left and right sides, the support points formed by the obtuse ends will drive the other two ends of the triangular abutment plates 306 to further abut and limit the standard torque wrench 401, thereby further reducing the movement of the standard torque wrench 401.
[0036] The technical solution in the above-mentioned embodiment of the present application has at least the following technical effects or advantages: relative to the second embodiment, in the present embodiment, through the setting of the triangular abutment plate 306, when the standard torque wrench 401 is clamped between the two triangular abutment plates 306, the two triangular abutment plates 306 will form a support point with the reaction arm 303, and when the standard torque wrench 401 is subjected to force and moves, the standard torque wrench 401 will be further abutted and limited, thereby ensuring that the standard torque wrench 401 will not move excessively during the overall calibration process.
[0037] Embodiment 4: The present invention also provides a fully automatic torque sensor calibration system, including: an industrial computer 201, a level conversion module, a power control module, a touch display 502, a keyboard and mouse 501, an adjustable reaction force device, a standard torque wrench 401, a servo driver 202, a servo motor 3004, a mechanical transmission mechanism, an abnormal protection device, and a torque sensor 402 to be measured; Among them, the industrial computer 201 and the servo driver 202 are used for the control of the entire system and data processing, judging the current calibration state, and outputting the servo motor 3004 control signal; Among them, the mechanical transmission mechanism and the adjustable reaction force device are used to receive the control signal loaded by the industrial computer 201 and the servo driver 202, transmit the output torque of the servo motor 3004 to the torque sensor 402 to be measured, and calibrate the standard torque wrench 401; The standard torque wrench 401 and the abnormal protection device are used to detect the actual torque value applied to the torque sensor 402 under test, and compare it with the output of the torque sensor 402 under test to obtain the calibration result; Among them, the touch display 502, keyboard and mouse 501 and hand control box module 503 are used for displaying the loading process and performing signal human-computer interaction; Among them, the level conversion module and the power control module are used to supply power to each component.
[0038] Specifically, before the calibration test, the product model, product range, product number and accuracy level of the standard torque wrench 401 are obtained. After confirmation by the calibration personnel, the basic information of the torque meter to be tested is added to the loading setting control, including the product name, product model, product number, inspection unit, product range, product accuracy and calibration points. After all the setting information is completed, the system automatically calculates the standard torque point that needs to be calibrated according to the product range and calibration points, and displays it in the corresponding position. After the calibration personnel confirm the standard torque point, the system completes the pre-loading preparation, selects the calibration direction, and clicks the start loading button. The system performs the pre-loading step according to the requirements of the "JJG557-2011 Standard Torque Meter Calibration Procedure", automatically loads to the maximum range of the sensor to be tested and maintains it for 30 seconds. After the time is reached, the system automatically unloads until the standard torque wrench 401 is free of force, indicating that the unloading is completed. After waiting for 30 seconds, the pre-loading operation continues. The pre-loading step can be completed by cycling the loading process three times. After the preloading is completed, the system will automatically unload to the zero point, and a zero point calibration dialog box will pop up to remind the calibrator to adjust the zero point of the torque sensor under test. After the adjustment, click Finish to enter the step-by-step calibration phase of the torque sensor under test 402. Further, after starting the step-by-step calibration steps of the measured torque sensor 402, the system loads according to the calculated first standard torque point, and the servo system loads the measured torque sensor 402 according to the preset loading curve to ensure that there is no impact when the measured torque sensor 402 is loaded to the standard torque point. When the standard torque value changes within a range of less than ±0.03% within 10 seconds, it is considered that the standard torque value has been reached. At this time, the system emits a "beep" sound, and pops up the first and first point measured torque input dialog box. At this time, fill in the torque value of the measured torque sensor 402, and click Finish to enter the second standard torque point calibration. The calibration process is the same as the first standard torque point calibration until the calibration of the maximum range standard point is completed. After the calibration is completed, the system automatically unloads to the zero point, and after 30 seconds, the system emits a "beep" sound, and pops up the zero torque input dialog box. After the calibrator enters the zero point torque value of the measured torque sensor 402, the system completes the first calibration process and starts the second calibration; Furthermore, the system repeats the calibration process twice to complete the second and third calibrations. After the three calibrations are completed, the system automatically calculates the detection indication of the current calibration direction. The calculation results include zero return error, repeatability, and relative error. Click the Save button to save the current direction record.
[0039] Furthermore, after completion, select another calibration direction, the system automatically resets the current parameters and generates a standard torque calibration point. The calibration process is the same as the first calibration process. After both directions are calibrated, the system automatically stores and generates a test report. The calibrator can view the test data and calibration report of the torque sensor under test on the search interface. The search interface has a query condition box reserved for conditional queries based on date, number, model and other information. The search interface has a delete control reserved. Select the data to be deleted and click Delete to delete the corresponding record.
[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A fully automatic torque sensor calibration device, comprising a mobile cabinet (1), an electric control system (2) installed inside the mobile cabinet (1), and a power supply module (6) installed inside the mobile cabinet (1), characterized in that: The mobile cabinet (1) is fixedly connected to a loading transmission system (3), the loading transmission system (3) further comprising a mechanical transmission mechanism and an adjustable reaction force device, and a collection system (4) is installed on the mechanical transmission mechanism; The mechanical transmission structure comprises a servo motor (3004), the servo motor (3004) being fixedly connected to the mobile cabinet (1), the mobile cabinet (1) being fixedly connected to a carrying box, the interior of the carrying box being fixedly connected to a sensor base (3002) via screws, the output shaft of the servo motor (3004) being fixedly connected to a lead screw (3003), one end of the lead screw (3003) being away from the servo motor (3004) being rotatably connected to the interior of the sensor base (3002), the exterior of the lead screw (3003) being movably connected to a swing rod (3001) via a universal shaft, and one end of the swing rod (3001) being away from the lead screw (3003) being sleeved onto the exterior of the sensor base (3002); The adjustable reaction force device comprises two fixing seats (300), the two fixing seats (300) are fixedly connected to the carrying box, two guide rods (301) are fixedly connected to adjacent sides of the two fixing seats (300), a slider (302) is slidably connected to the outside of the guide rod (301), two reaction force arms (303) are fixedly connected to the slider (302), and the two reaction force arms (303) are staggered; The acquisition system (4) comprises a measured torque sensor (402), the measured torque sensor (402) being movably connected to the sensor base (3002), a standard torque wrench (401) being clamped onto the measured torque sensor (402), and an end of the standard torque wrench (401) away from the measured torque sensor (402) being clamped between the two reaction arms (303).
2. A fully automatic torque sensor calibration device according to claim 1, characterized in that: The reaction arm (303) is rectangular in shape, and a plurality of positioning grooves (304) are provided on the outside of the reaction arm (303) in the long direction, and the opening positions of the positioning grooves (304) of the two rectangular reaction arms (303) are arranged opposite to each other.
3. A fully automatic torque sensor calibration device according to claim 2, characterized in that: The interior of the positioning groove (304) is integrally formed with elastic wear-resistant rubber (305).
4. A fully automatic torque sensor calibration device according to claim 3, characterized in that: A triangular abutment plate (306) is fixedly connected to a side of the elastic wear-resistant rubber (305) away from the positioning groove (304).
5. A fully automatic torque sensor calibration device according to claim 4, characterized in that: The mobile cabinet (1) is equipped with a display interaction system, the display interaction system comprising a touch display (502), the touch display (502) being mounted on the mobile cabinet (1) by means of screws, a keyboard and mouse (501) being mounted inside the mobile cabinet (1), and a hand control box module (503) being mounted outside the mobile cabinet (1).
6. A fully automatic torque sensor calibration device according to claim 5, characterized in that: The electric control system (2) comprises an industrial computer (201) and a servo drive (202); the industrial computer (201) and the servo drive (202) are both installed inside the mobile cabinet (1); the industrial computer (201) and the servo drive (202) are both electrically connected to the keyboard and mouse (501), the touch display (502) and the hand control box module (503); and the power supply module (6) is electrically connected to the industrial computer (201), the servo drive (202), the keyboard and mouse (501), the touch display (502) and the hand control box module (503), respectively.
7. The fully automatic torque sensor calibration device according to claim 1, characterized in that: A moving hole matching the guide rod (301) is provided on the outside of the sliding block (302), and the inner wall of the moving hole and the outer wall of the guide rod (301) are both configured as rough surfaces.
8. The fully automatic torque sensor calibration device according to claim 3, characterized in that: A storage cavity is provided inside the elastic wear-resistant rubber (305), and the storage cavity is filled with electrorheological fluid. The triangular abutment plate (306) located inside the positioning groove (304) is divided into an upper connection block and a lower connection block. The upper connection block is made of an electromagnet, and the lower connection block is made of an iron adsorption block.
9. A fully automatic torque sensor calibration system, using a fully automatic torque sensor calibration device according to any one of claims 1 to 8, characterized in that: include: Industrial computer (201), level conversion module, power control module, touch display (502), keyboard and mouse (501), adjustable reaction force device, standard torque wrench (401), servo driver (202), servo motor (3004), mechanical transmission mechanism, abnormal protection device, and measured torque sensor (402); The industrial computer (201) and the servo driver (202) are used for controlling the entire system and processing data, determining the current calibration state, and outputting a control signal for the servo motor (3004); The mechanical transmission mechanism and the adjustable reaction force device are used to receive control signals loaded by the industrial computer (201) and the servo driver (202), transmit the output torque of the servo motor (3004) to the torque sensor (402) to be measured, and calibrate the standard torque wrench (401); The standard torque wrench (401) and the abnormal protection device are used to detect the actual torque value applied to the torque sensor (402) to be measured, and compare it with the output of the torque sensor (402) to be measured to obtain a calibration result; The touch display (502), keyboard and mouse (501) and hand control box module (503) are used for displaying the loading process and performing signal human-computer interaction; Among them, the level conversion module and the power control module are used to supply power to each component.
10. A fully automatic torque sensor calibration system according to claim 9, characterized in that: The full amount detected by the torque sensor under test is divided into 20%, 40%, 60%, 80% and 100%.
Citation Information
Patent Citations
Torque standard machine for calibrating torque sensor
CN112985690A
Self-calibration couple type torque standard machine, self-calibration method thereof and torque testing method
CN114264406A