Angle calibration device for electronic wrench
By designing an electronic wrench angle calibration device and adopting torque simulation and tilt adjustment mechanisms, the problem of insufficient applicability of existing devices in angle measurement was solved, and high-precision electronic wrench angle testing was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANGHAI UB MASCH CO LTD
- Filing Date
- 2026-01-16
- Publication Date
- 2026-04-10
AI Technical Summary
Existing electronic wrench testing devices have significant limitations in angle measurement, especially in their insufficient applicability to different types of electronic wrenches, which leads to errors in the starting point of angle measurement and affects the accuracy of the test.
An electronic wrench angle calibration device was designed, including a worktable, a wrench drive module, a torque simulation module, a monitoring module, and a control system. By simulating different threshold torques, the device uses a damper and a drive mechanism to achieve accurate angle measurement. Combined with a tilt adjustment mechanism to simulate different working conditions, the device ensures the accuracy and applicability of the test.
It enables high-precision angle calibration of different types of electronic wrenches, improves the accuracy and efficiency of testing, and meets the high standards of modern industrial testing.
Smart Images
Figure CN121829664A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of electronic wrench performance testing, and in particular to an electronic wrench angle calibration device. Background Technology
[0002] As a key tool in modern industrial assembly and maintenance, the torque output and angle control precision of electric wrenches directly determine the safety and reliability of bolted connections. With the continuous evolution of industry standards, higher requirements are being placed on the performance testing of electronic wrenches; for electronic wrenches with angle displays, the accuracy of the angle display needs to be tested.
[0003] According to industry standards, during the testing of electronic wrenches, the measurement of the operating angle is not calculated from the moment the wrench begins to rotate, but rather only after a specific threshold torque is reached. This simulates the critical point at which the bolt enters the elastic deformation stage during actual tightening. This is because, in actual bolt tightening, it is necessary to overcome the static friction between the threads and the gaps between the mating surfaces of the parts. When the torque reaches the threshold, it means that the bolt has truly entered the linear tensile tightening stage. This avoids measurement deviations caused by thread clearance or subjective operation.
[0004] Currently, torque and angle testing of electronic wrenches largely relies on manual handheld inspection or simple fixed devices for automated testing. While these methods can provide a rough verification of torque values, they have significant limitations in angle measurement. The threshold torque simulated in existing electronic testing devices is a constant value, typically designed for specific wrench models, lacking versatility and failing to meet the testing needs of different types of electronic wrenches. This can lead to errors in the starting point of angle measurement, thus affecting the accuracy of the test. Summary of the Invention
[0005] To achieve different threshold torques and improve the applicability of the device, this application provides an electronic wrench angle calibration device.
[0006] This application provides an electronic wrench angle calibration device, which adopts the following technical solution: The electronic wrench angle calibration device includes: Workbench, including brackets; The wrench drive module includes a test bracket and a first drive mechanism. The test bracket is used to assemble an electronic wrench, and the first drive mechanism is used to drive the test bracket to rotate. The torque simulation module includes a test spindle, a damper, and a second drive mechanism mounted on the bracket. One end of the test spindle has a test insertion hole. The damper includes a damping shaft, a damping housing, a brake disc, a brake fixed disc, and an adjusting disc slidably mounted within the damping housing. An elastic element is provided between the brake fixed disc and the adjusting disc. The damping shaft is coaxially fixed to the test spindle, with one end located within the damping housing. The brake fixed disc and the brake disc are coaxially sleeved on the damping shaft, and the brake disc can rotate synchronously with the damping shaft. The second drive mechanism is used to drive the adjusting disc to slide. The monitoring module includes an angle detector and a torque detector. The angle detector is used to monitor the rotation angle of the test spindle, and the torque detector is used to detect the torque of the test spindle. The control system is electrically connected to the monitoring module. When the torque detected by the torque detector reaches the threshold torque, it controls the angle detector to perform angle monitoring.
[0007] By adopting the above technical solution, during testing, the electronic wrench under test is mounted on the test bracket, and its output end is inserted into the test socket of the test spindle. The control system first instructs the second drive mechanism to operate, preset the threshold torque: the drive adjustment disc slides and compresses the elastic element, generating positive pressure between the brake fixed disc and the brake moving disc, thereby forming an adjustable friction torque on the damping shaft; since the damping shaft is coaxially fixed with the test spindle, this torque is converted into a threshold torque acting on the test spindle. Subsequently, the control system instructs the first drive mechanism to operate, driving the test bracket and the electronic wrench on it to rotate, thereby driving the test spindle to rotate against the simulated torque. The torque detector monitors the torque of the test spindle in real time. Once the preset threshold is reached, the angle detector is immediately triggered to start recording the rotation angle of the test spindle until the target angle is reached, completing one calibration. The target angle is compared and analyzed with the angle data displayed on the electric wrench. By automatically and accurately simulating the standard working condition of the electronic wrench starting to measure the angle after reaching the threshold torque through the torque simulation module, the accuracy, repeatability and high efficiency of the angle calibration results are fundamentally guaranteed.
[0008] Optionally, the test bracket includes a corner arm and a clamping member slidably disposed on the corner arm. A bushing is provided on the test spindle, and the bushing is rotatably connected to the test spindle. One end of the corner arm is sleeved on the bushing, and a fixing member for fixing the corner arm is provided on the bushing. The clamping component includes a clamping groove, a locking element, and a fastener. The locking element is used to lock the clamping groove, and the fastener is disposed on the clamping groove to abut against the electronic wrench.
[0009] By adopting the above technical solution, the bushing enables an indirect coaxial rotational connection between the angle arm and the test spindle. This ensures that the electronic wrench can transmit torque through the angle arm to drive the test spindle, while the fixing component maintains a fixed connection between the test bracket and the bushing, providing a stable structural foundation for accurate angle measurement after triggering the threshold torque. The handle of the electronic wrench is placed in the clamping slot, and the sliding clamping component moves it to the appropriate position. Then, the locking component is used to fix the relative position of the clamping slot and the angle arm. Tightening the fastener to press it against the handle of the electronic wrench completes the clamping of the electric wrench. This ensures that the axis of the electronic wrench and the axis of the test spindle maintain the correct relative position.
[0010] Optionally, the bracket is provided with a positioning element, which includes a positioning post and a positioning bolt. One end of the positioning bolt is threaded into the positioning post, and the other end of the positioning bolt is used to abut against the corner arm.
[0011] By adopting the above technical solution, additional, precisely adjustable support can be provided for the corner arm that may bend after bearing the wrench, effectively enhancing its rigidity, preventing deformation caused by its own weight or vibration, ensuring that the corner arm reliably maintains a horizontal or preset angle relative to the bracket, and guaranteeing the stability of the test benchmark.
[0012] Optionally, the first drive mechanism includes a first drive source and a first transmission assembly, wherein the first transmission assembly includes a first driving pulley, a first driven pulley, and a first synchronous belt; The first driven pulley is coaxially fixed to the outside of the bushing, and the first synchronous belt meshes with both the first driving pulley and the first driven pulley; The first drive source is electrically connected to the control system, and the first drive source is used to drive the first drive pulley to rotate.
[0013] By adopting the above technical solution, the first drive source is activated, driving the first active pulley to rotate. Through the meshing transmission of the first synchronous belt, since the first driven pulley is coaxially fixed on the bushing, it drives the bushing and the angle arm connected to the bushing to rotate, thereby realizing the rotational drive of the electronic wrench. The control system can achieve precise control of the rotational angular velocity of the test spindle by precisely controlling the rotational speed of the first drive source.
[0014] Optionally, the second drive mechanism includes a second drive source, a drive drum, an adjusting drum, and a second transmission assembly, wherein the drive drum is rotatably mounted on the bracket; One end of the adjusting cylinder is connected to the adjusting disk, and the adjusting cylinder is threaded into the driving rotating cylinder. The damping housing can restrict the rotation of the adjusting disk. The second transmission assembly includes a second driving pulley, a second driven pulley, and a second synchronous belt. The second driven pulley is sleeved and fixed outside the drive drum, and the second synchronous belt meshes with both the second driving pulley and the second driven pulley. The second drive source is electrically connected to the control system, and the second drive source is used to drive the second drive pulley to rotate.
[0015] By adopting the above technical solution, the control system commands the second drive source to operate according to the preset threshold torque value, driving the second active pulley to rotate, which in turn drives the second driven pulley and the drive drum to rotate via the second synchronous belt. Since the adjusting drum is threaded into the drive drum, and the damping housing restricts the rotation of the adjusting disc, it indirectly restricts the rotation of the adjusting drum. The second driven pulley drives the drive drum to rotate, causing the adjusting drum to move axially, pushing or pulling the adjusting disc, thereby compressing or releasing the elastic element, changing the normal pressure between the brake disc and the brake stationary disc, and ultimately precisely setting the torque value generated by the damper.
[0016] Optionally, the workbench further includes a base, the bracket is rotatably mounted on the base, and the base is provided with a tilt adjustment mechanism for driving the bracket to rotate.
[0017] By adopting the above technical solution, the tilt adjustment mechanism receives instructions from the control system and drives the bracket, along with its test spindle, damper, test support, and other components, to rotate relative to the base. This adjusts the entire test plane to a preset tilt angle, simulating the working state of the electronic wrench in different spatial orientations. This allows for comprehensive verification of the accuracy of angle measurements by the electronic wrench under different gravity postures, greatly improving the completeness and practicality of the calibration test.
[0018] Optionally, the bracket includes a tray, and the tilt adjustment mechanism includes a third drive source and a clamp for holding the tray; Two clamps are arranged opposite each other, and the clamps are rotatably mounted on the base. The third drive source is used to drive the clamps to rotate.
[0019] By adopting the above technical solution, two oppositely arranged clamps are used to hold the tray and are driven by the same drive source, ensuring the stability and rigidity of the tray during tilting and after tilting into place, preventing shaking, and accurately adjusting the angle of the tray.
[0020] Optionally, the control system includes: The parameter setting module is used to receive user input of threshold torque, target test angle, and preset angular velocity; The main control module is communicatively connected to the parameter setting module and is used to generate corresponding control commands based on the threshold torque, target test angle and preset angular velocity. The drive control module is communicatively connected to the main control module and is used to control the threshold torque applied to the test spindle by the torque simulation module according to the control command, and to control the first drive mechanism to drive the test spindle to rotate at a preset angular velocity. The data acquisition and processing module is electrically connected to the monitoring module.
[0021] By adopting the above technical solution, parameter setting, instruction generation, drive control and data acquisition and processing form a closed-loop control, which seamlessly integrates mechanical motion, parameter simulation and data measurement, ensuring that the test process is strictly executed according to the standard, completely eliminating errors caused by human intervention, and significantly improving test efficiency.
[0022] Optionally, the parameter setting module is also used to receive the tray tilt angle input by the user, and the drive control module is also electrically connected to the third drive source to control the third drive source to drive the tray to rotate to the corresponding angle.
[0023] By adopting the above technical solution and incorporating the pallet tilting function into the automated control, the equipment can automatically complete continuous calibration tests in multiple spatial postures according to the preset test plan, which greatly enhances the equipment's intelligent and batch testing capabilities.
[0024] Optionally, the control system further includes a result output module, which is electrically connected to the data acquisition and processing module and is used to output and store the angle calibration results.
[0025] By adopting the above technical solution, the data output and management functions have been improved. Through the result output module, calibration data can be directly displayed, stored, or printed, facilitating quality traceability, report generation, and data analysis, thus meeting the requirements of a modern quality management system.
[0026] In summary, this application includes at least one of the following beneficial effects: 1. This application drives the adjustment disc to slide through the second drive mechanism in the torque simulation module, so that the elastic element changes the pressure on the brake fixed disc and the brake moving disc, thereby realizing the loading of different threshold torques and greatly improving the adaptability of the device to different types of electronic wrenches. 2. In this application, the angle detector and torque detector of the monitoring module accurately monitor the rotation angle and torque of the test spindle, providing reliable and accurate reference data for the angle calibration output of the electronic wrench, so as to meet the high-precision testing needs of the industry; 3. The workbench bracket can be rotated via a tilt adjustment mechanism, and the parameter setting module can receive the tilt angle of the workbench, providing convenience for simulating the use of electronic wrenches under different working conditions and enhancing the authenticity of the test results. Attached Figure Description
[0027] Figure 1 This is a top view of the electronic wrench angle calibration device in the embodiments of this application; Figure 2 This is a front view schematic diagram of the electronic wrench angle calibration device in the embodiments of this application; Figure 3 This is a partial cross-sectional view of the electronic wrench angle calibration device in the embodiments of this application; Figure 4 This is a schematic diagram of the damping shell structure in an embodiment of this application; Figure 5 This is a schematic diagram of the brake disc structure in an embodiment of this application; Figure 6 This is a schematic diagram of the brake disc structure in an embodiment of this application; Figure 7 This is a schematic diagram of the clamping component in an embodiment of this application; Figure 8 This is a schematic diagram of the control mode of the electronic wrench angle calibration device in the embodiments of this application; Explanation of reference numerals in the attached diagram: 1. Workbench; 11. Bracket; 111. Pallet; 13. Base; 2. Wrench drive module; 21. Test bracket; 211. Angle arm; 212. Clamping component; 2121. Clamping groove; 2122. Locking component; 2123. Fastener; 2124. Adjustment port; 22. Fixing component; 23. First drive mechanism; 231. First drive source; 232. First transmission assembly; 2321. First driving pulley; 2322. First driven pulley; 2323. First synchronous belt; 3. Torque simulation module; 31. Damper; 311. Damping shaft; 312. Damping housing; 3121. Anti-rotation groove; 313. Brake moving disc; 314. Brake fixed disc; 315. Adjusting disc; 316. Elastic element; 32. Second drive mechanism; 321. Second drive source; 322. Drive drum; 323. Adjusting drum; 324. Second transmission assembly; 3241. Second driving pulley; 3242. Second driven pulley; 3243. Second synchronous belt; 33. Test spindle; 331. Test socket; 34. Bushing; 341. Flange; 4. Monitoring module; 41. Angle detector; 42. Torque detector; 5. Control system; 51. Parameter setting module; 52. Main control module; 53. Drive control module; 54. Data acquisition and processing module; 55. Result output module; 56. Power supply module.
[0028] 6. Positioning component; 61. Positioning pin; 62. Positioning bolt; 7. Tilting adjustment mechanism; 71. Fixture; 711. Clamping slot; 72. Third drive source; 73. Assembly bolt. Detailed Implementation
[0029] The following is in conjunction with the appendix Figure 1 -Appendix Figure 8 This application will be described in further detail.
[0030] The electronic wrench angle calibration device provided in this application includes a workbench 1, a wrench drive module 2, a torque simulation module 3, a monitoring module 4, and a control system 5. The workbench 1 provides a supporting foundation for the entire device. The wrench drive module 2 drives the electronic wrench to perform rotation tests. The torque simulation module 3 can simulate different threshold torques. The monitoring module 4 monitors the actual rotation angle and torque of the test. The control system 5 is electrically connected to the monitoring module 4. When the detected torque reaches the threshold torque, the control angle detector 41 is controlled to monitor the angle. This can accurately simulate the real tightening process and improve the test accuracy.
[0031] Reference Figure 1 and Figure 2 The workbench 1 includes a bracket 11 and a base 13. The bracket 11 is rotatably mounted on the base 13, and the base 13 is equipped with a tilt adjustment mechanism 7 for driving the bracket 11 to rotate. The base 13 serves to support other modules and provides a stable foundation for the entire device. The bracket 11 can be made of metal, such as aluminum alloy. The tilt adjustment mechanism 7 includes a third drive source 72 and a clamp 71. Two clamps 71 are arranged opposite each other. One clamp 71 is rotatably connected to the base 13 via a bearing seat. The third drive source 72 can be a servo motor. The third drive source 72 is fixed to the base frame via a support. The output end of the third drive source 72 is connected to a reducer, and the output end of the reducer is fixedly connected to the other clamp 71. In this embodiment, the clamp 71 is specifically cylindrical. The side wall of the clamp 71 has a clamping slot 711, and the clamp 71 is equipped with mounting bolts 73. The bracket 11 includes a support plate 111, which is located between two clamps 71. The side end of the support plate 111 is engaged in the clamping groove 711 of the adjacent clamp 71. The mounting bolt 73 passes through the clamping groove 711 and is threadedly connected to the clamp 71, realizing the detachable connection of the support plate 111 on the clamp 71. The third drive source 72 is electrically connected to the control system 5 (not shown in the figure). The motor drives the clamp 71 to rotate, which in turn drives the bracket 11 to rotate, realizing the tilt adjustment of the bracket 11.
[0032] Reference Figure 1 and Figure 3The torque simulation module 3 includes a test spindle 33, a damper 31, and a second drive mechanism 32, all mounted on the bracket 11. The test spindle 33 is rotatably connected to the bracket 111 via a bearing seat. One end of the test spindle 33 has a test socket 331, which can be a polygonal hole adapted to the output end of the electronic wrench. A bushing 34 is fitted around the test spindle 33 and is rotatably connected to the test spindle 33 via a bearing. The bushing 34 is specifically cylindrical.
[0033] Reference Figure 3 and Figure 4 The damper 31 includes a damping shaft 311, a damping housing 312, a brake moving disc 313, a brake fixed disc 314, and an adjusting disc 315 slidably disposed within the damping housing 312. The bracket 11 also includes a mounting support fixed to the support plate 111. The damping housing 312 is a cylindrical shell structure, with one end fixedly connected to the mounting support. One end of the damping shaft 311 is located inside the damping housing 312, and the other end passes through the mounting support and is rotatably connected to it. The damping shaft 311 and the damping housing 312 are coaxially arranged. An anti-rotation groove 3121 is provided on the inner sidewall of the damping housing 312, and multiple anti-rotation grooves 3121 are spaced apart around the axis of the damping housing 312. (Refer to...) Figure 3 and Figure 5 Both the moving brake disc 313 and the fixed brake disc 314 are sleeved on the outside of the damping shaft 311. Both are annular structures. The inner ring of the moving brake disc 313 is adapted to the cross-section of the damping shaft 311, and the area enclosed by the inner ring of the fixed brake disc 314 is larger than the cross-section of the damping shaft 311. The outer ring of the fixed brake disc 314 is adapted to the shape of the inner ring of the damping housing 312, thus allowing the damping housing 312 to restrict the rotation of the fixed brake disc 314. In this embodiment, refer to... Figure 3 and Figure 6 The damping shaft 311 has a cross-section that is a regular hexagon, and the inner ring of the brake disc 313 is also correspondingly a regular hexagon. When the damping shaft 311 rotates, the brake disc 313 can rotate synchronously with the damping shaft 311, while the brake fixed disc 314 can only slide along the damping housing 312. In this embodiment, two brake discs 313 and two brake fixed discs 314 are provided in the damping housing 312, and the brake discs 313 and 314 are arranged alternately.
[0034] In other embodiments, the inner ring of the damping housing 312 may also be configured as a positive polymorphic structure.
[0035] Reference Figure 3An adjusting disc 315 is fitted onto one end of the damping shaft 311 and slidably disposed within the damping housing 312. The adjusting disc 315 has the same structure as the brake fixed disc 314, allowing the damping housing 312 to restrict the rotation of the adjusting disc 315. An elastic element 316 connects the brake fixed disc 314 and the adjacent adjusting disc 315. The elastic element 316 can be a spring or a rubber rod. In this embodiment, six elastic elements 316 are spaced apart around the axis of the damping shaft 311. The damping shaft 311 is coaxially arranged with the test spindle 33, and a monitoring module 4 is connected between the damping shaft 311 and the test spindle 33. The monitoring module 4 includes an angle detector 41 and a torque detector 42. The angle detector 41 can be a photoelectric encoder and is coaxially mounted on one end of the test spindle 33 to monitor the rotation angle of the test spindle 33 in real time. The torque detector 42 is a dynamic torque sensor. The torque detector 42 is fixed between the angle detector 41 and the damping shaft 311 to detect the torque of the test spindle 33.
[0036] Reference Figure 1 and Figure 3 The second drive mechanism 32 includes a second drive source 321, a drive drum 322, an adjusting cylinder 323, and a second transmission assembly 324. The drive drum 322 is rotatably connected to the support plate 111 via a bearing seat. The adjusting cylinder 323 is threaded into the drive drum 322, and one end of the adjusting cylinder 323 is fixedly connected to the adjusting disc 315. The second transmission assembly 324 includes a second driving pulley 3241, a second driven pulley 3242, and a second synchronous belt 3243. The second driven pulley 3242 is sleeved on the outside of the drive drum 322 and fixedly connected to it. The second synchronous belt 3243 meshes with both the second driving pulley 3241 and the second driven pulley 3242. The second drive source 321 is fixed to the support plate 111 via a support. The second drive source 321 can be a servo motor, and its output end is coaxially fixed with the second driving pulley 3241. The second drive source 321 drives the second active pulley 3241 to rotate, which in turn drives the second driven pulley 3242 to rotate via the second synchronous belt 3243, thereby causing the drive drum 322 to rotate. The adjusting cylinder 323 is threadedly engaged with the drive drum 322, and the adjusting cylinder 323 pulls the adjusting disc 315 to slide, changing the compression of the elastic element 316, thereby achieving the loading of different threshold torques.
[0037] Reference Figure 1 and Figure 3The wrench drive module 2 includes a test bracket 21 and a first drive mechanism 23. The test bracket 21 includes a corner arm 211 and a clamping member 212. The corner arm 211 is a strip-shaped structure, with one end sleeved on a bushing 34. A fixing member 22 for fixing the corner arm 211 is provided on the bushing 34. In this embodiment, the fixing member 22 is a fixing nut, which is threaded onto the bushing 34. A flange 341 is integrally formed at one end of the bushing 34, and the corner arm 211 is located between the flange 341 and the fixing nut. By tightening the fixing nut, the corner arm 211 can be fixed to the bushing 34. (Refer to...) Figure 2 The support plate 111 is equipped with a positioning element 6, which includes a positioning post 61 and a positioning bolt 62. The positioning post 61 can be a cylindrical structure and is fixed to the support plate 111. One end of the positioning bolt 62 is threaded into the positioning post 61, and the other end abuts against the corner arm 211. Before fully tightening the fixing nut, the extension length of the positioning bolt 62 can be adjusted by rotating it, thereby positioning the corner arm 211 to ensure the accuracy of its position and further improve the accuracy of the test.
[0038] Reference Figure 1 and Figure 7 The clamping component 212 includes a clamping groove 2121, a locking component 2122, and a fastener 2123. The clamping groove 2121 has a U-shaped structure and is used to accommodate the electronic wrench. An adjustment port 2124 is provided on the clamping groove 2121, and the corner arm 211 passes through the adjustment port 2124, achieving a sliding connection between the clamping groove 2121 and the corner arm 211. The locking component 2122 is a locking bolt, which is threaded onto the clamping groove 2121; one end of the locking bolt is located inside the adjustment port 2124 and connected to a locking abutment. Tightening the locking bolt locks the position of the clamping groove 2121 on the corner arm 211.
[0039] Fastener 2123 includes a fine-tuning slider and a fastening bolt threaded onto the fine-tuning slider. The fine-tuning slider is slidably connected to the clamping groove 2121 via a slide rail. One end of the fastening bolt passes through the inside of the clamping groove 2121 and is connected to an abutment. The electronic wrench is fixed inside the clamping groove 2121, and the electronic wrench is secured on the angle arm 211 by rotating the fastening bolt. (Refer to...) Figure 1 and Figure 3The first drive mechanism 23 includes a first drive source 231 and a first transmission assembly 232. The first transmission assembly 232 includes a first driving pulley 2321, a first driven pulley 2322, and a first synchronous belt 2323. The first driven pulley 2322 is coaxially fixed to the outside of the bushing 34, and the first synchronous belt 2323 meshes with both the first driving pulley 2321 and the first driven pulley 2322. The first drive source 231 can be a motor, electrically connected to the control system 5. The motor drives the first driving pulley 2321 to rotate, which in turn drives the first driven pulley 2322 to rotate via the first synchronous belt 2323, thereby driving the bushing 34 and the angle arm 211 to rotate, thus realizing the rotation test of the electronic wrench.
[0040] Reference Figure 8 The control system 5 includes a parameter setting module 51, a main control module 52, a drive control module 53, a data acquisition and processing module 54, a result output module 55, and a power supply module 56. The parameter setting module 51 receives user-input parameters such as threshold torque, target test angle, preset angular velocity, and the tilt angle of the pallet 111. The main control module 52 is communicatively connected to the parameter setting module 51 and generates corresponding control commands based on the user-input parameters. The main control module 52 can be an industrial computer running dedicated control software, forming the control center of the control system 5. The parameter setting module 51 is configured as a screen function button electrically connected to the industrial computer.
[0041] The drive control module 53 is communicatively connected to the main control module 52. The servo drive module includes a first servo driver, a second servo driver, and a third servo driver. The first servo driver is electrically connected to the first drive source 231 and, according to control commands, controls the first drive mechanism 23 to drive the test spindle 33 to rotate at a preset angular velocity. The second servo driver is electrically connected to the second drive source 321 and, according to control commands, controls the torque simulation module 3 to load a threshold torque acting on the test spindle 33. The third servo driver is electrically connected to the third drive source 72 and, according to control commands, controls the third drive source 72 to drive the support plate 111 to rotate to a set angle. The data acquisition and processing module 54 is electrically connected to the monitoring module 4. The torque detector 42 acquires the actual torque signal of the spindle in real time, and the angle detector 41 acquires the angle signal of the spindle in real time. These signals are fed back to the industrial computer through the signal acquisition module. The software in the industrial computer compares the acquired actual torque value with the set threshold torque value in real time. When the actual torque value reaches the threshold torque, the software triggers the angle recording function and begins recording the angle value monitored by the angle detector 41 until the preset target angle point is reached. The data acquisition and processing module 54 compares and analyzes the acquired angle data with the angle data output by the wrench itself to obtain the calibration result. The result output module 55 is electrically connected to the data acquisition and processing module 54. The result output module 55 includes a data storage unit and a print output unit. The obtained calibration result is displayed on the screen of the industrial computer and saved through the data storage unit, or a paper report is generated through the print output unit. The power of the entire control system 5 is supplied by the power supply module 56.
[0042] The implementation principle of this embodiment is as follows: This electronic wrench angle calibration device, through the coordinated operation of its modules, can simulate different threshold torques to adapt to the testing requirements of different types of electronic wrenches. The control system 5 accurately controls the activation of the angle detector 41 based on the detection results of the torque detector 42, improving the accuracy of the test and the applicability of the device. The positioning component 6 enables precise positioning of the angle arm 211, making the electronic wrench's position more stable and accurate during testing, reducing test errors caused by deviations in the position of the angle arm 211. The tilt adjustment mechanism 7 allows the device to simulate different working scenarios, and users can adjust the tilt angle of the workbench 1 according to actual needs, further improving the device's applicability. Simultaneously, the reasonable arrangement and connection method of each module facilitates installation and maintenance, demonstrating good practicality and reliability.
[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. An electronic wrench angle calibration device, characterized in that, include: Workbench (1), including bracket (11); The wrench drive module (2) includes a test bracket (21) and a first drive mechanism (23). The test bracket (21) is used to assemble an electronic wrench, and the first drive mechanism (23) is used to drive the test bracket (21) to rotate. The torque simulation module (3) includes a test spindle (33), a damper (31), and a second drive mechanism (32) mounted on the bracket (11). One end of the test spindle (33) is provided with a test socket (331). The damper (31) includes a damping shaft (311), a damping housing (312), a brake disc (313) slidably mounted within the damping housing (312), a brake fixed disc (314), and an adjusting disc (315). The brake fixed disc (314) and the adjusting disc (315)... An elastic element (316) is provided between 315); the damping shaft (311) is coaxially fixed with the test main shaft (33), one end of the damping shaft (311) is located inside the damping housing (312), the brake fixed disc (314) and the brake moving disc (313) are coaxially sleeved on the damping shaft (311), the brake moving disc (313) can rotate synchronously with the damping shaft (311), and the second drive mechanism (32) is used to drive the adjustment disc (315) to slide; The monitoring module (4) includes an angle detector (41) and a torque detector (42). The angle detector (41) is used to monitor the rotation angle of the test spindle (33), and the torque detector (42) is used to detect the torque of the test spindle (33). The control system (5) is electrically connected to the monitoring module (4). When the torque detected by the torque detector (42) reaches the threshold torque, the control angle detector (41) is controlled to perform angle monitoring.
2. The electronic wrench angle calibration device according to claim 1, characterized in that, The test bracket (21) includes a corner arm (211) and a clamping member (212) slidably disposed on the corner arm (211). The test spindle (33) is covered with a bushing (34). The bushing (34) is rotatably connected to the test spindle (33). One end of the corner arm (211) is sleeved on the bushing (34). The bushing (34) is provided with a fixing member (22) for fixing the corner arm (211). The clamping member (212) includes a clamping groove (2121), a locking member (2122), and a fastener (2123). The locking member (2122) is used to lock the clamping groove (2121), and the fastener (2123) is disposed on the clamping groove (2121) to abut against the electronic wrench.
3. The electronic wrench angle calibration device according to claim 2, characterized in that, The bracket (11) is provided with a positioning element (6), which includes a positioning post (61) and a positioning bolt (62). One end of the positioning bolt (62) is threaded into the positioning post (61), and the other end of the positioning bolt (62) is used to abut against the corner arm (211).
4. The electronic wrench angle calibration device according to claim 2, characterized in that, The first drive mechanism (23) includes a first drive source (231) and a first transmission assembly (232). The first transmission assembly (232) includes a first drive pulley (2321), a first driven pulley (2322), and a first synchronous belt (2323). The first driven pulley (2322) is coaxially fixed to the outside of the bushing (34), and the first synchronous belt (2323) meshes with both the first driving pulley (2321) and the first driven pulley (2322). The first drive source (231) is electrically connected to the control system (5), and the first drive source (231) is used to drive the first drive pulley (2321) to rotate.
5. The electronic wrench angle calibration device according to claim 1, characterized in that, The second drive mechanism (32) includes a second drive source (321), a drive drum (322), an adjusting drum (323), and a second transmission assembly (324), wherein the drive drum (322) is rotatably mounted on the bracket (11); One end of the adjusting cylinder (323) is connected to the adjusting disk (315), and the adjusting cylinder (323) is threaded into the driving rotating cylinder (322). The damping housing (312) can restrict the rotation of the adjusting disk (315). The second transmission assembly (324) includes a second driving pulley (3241), a second driven pulley (3242), and a second synchronous belt (3243). The second driven pulley (3242) is sleeved and fixed outside the drive drum (322). The second synchronous belt (3243) meshes with both the second driving pulley (3241) and the second driven pulley (3242). The second drive source (321) is electrically connected to the control system (5), and the second drive source (321) is used to drive the second drive pulley (3241) to rotate.
6. The electronic wrench angle calibration device according to claim 1, characterized in that, The workbench (1) also includes a base (13), the bracket (11) is rotatably mounted on the base (13), and the base (13) is provided with a tilt adjustment mechanism (7) for driving the bracket (11) to rotate.
7. The electronic wrench angle calibration device according to claim 6, characterized in that, The bracket (11) includes a tray (111), and the tilt adjustment mechanism (7) includes a third drive source (72) and a clamp (71) for holding the tray (111). Two clamps (71) are arranged opposite each other. The clamps (71) are rotatably mounted on the base (13). The third drive source (72) is used to drive the clamps (71) to rotate.
8. The electronic wrench angle calibration device according to claim 7, characterized in that, The control system (5) includes: The parameter setting module (51) is used to receive the threshold torque, target test angle and preset angular velocity input by the user; The main control module (52) is connected in communication with the parameter setting module (51) and is used to generate corresponding control commands based on the threshold torque, target test angle and preset angular velocity. The drive control module (53) is connected in communication with the main control module (52) and is used to control the threshold torque of the torque simulation module (3) acting on the test spindle (33) according to the control command, and to control the first drive mechanism (23) to drive the test spindle (33) to rotate at a preset angular velocity. The data acquisition and processing module (54) is electrically connected to the monitoring module (4).
9. The electronic wrench angle calibration device according to claim 8, characterized in that: The parameter setting module (51) is also used to receive the tilt angle of the tray (111) input by the user. The drive control module (53) is also electrically connected to the third drive source (72) to control the third drive source (72) to drive the tray (111) to rotate to the corresponding angle.
10. The electronic wrench angle calibration device according to claim 8, characterized in that, The control system (5) further includes a result output module (55), which is electrically connected to the data acquisition and processing module (54) and is used to output and store angle calibration results.