Intelligent testing device for mechanical properties of resin anchor rod body
By designing an intelligent testing device, the detection of anchor bolts is automated and data is adaptively linked, solving the problems of low efficiency and safety hazards in traditional testing, improving testing efficiency and data accuracy, and eliminating safety hazards.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- COAL SCI (BEIJING) TESTING TECH CO LTD
- Filing Date
- 2026-05-15
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional anchor bolt testing relies on manual operation, resulting in low testing efficiency, data being affected by human factors, and a safety hazard of nuts exploding and causing injury.
Design an intelligent testing device for the mechanical properties of resin anchor bolts, including a double-layer movable anchor bolt hopper, a universal testing machine, a truss, a double-claw manipulator, a waste trolley, and a control cabinet, to achieve automated testing and adaptive data linkage, avoiding manual intervention and safety hazards.
The entire process of anchor bolt inspection is automated, which improves inspection efficiency, reduces labor intensity, ensures the accuracy of test data, and eliminates safety hazards.
Smart Images
Figure CN122385346A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of testing technology for resin anchor bolts used in mining, specifically to an intelligent testing device for the mechanical properties of resin anchor bolts. Background Technology
[0002] As a core component of the coal mine roadway support system, the quality of anchor bolts is directly related to production safety. Therefore, it is crucial to test their mechanical properties. According to relevant standards, the mechanical properties of the bolt material and the load-bearing efficiency coefficient of the nut assembly are key items that must be tested.
[0003] Currently, the testing of these key performance indicators mainly relies on manual operation of testing equipment. In the conventional testing process, inspectors need to complete a series of steps, such as coding, installing, inputting parameters, executing tests, and disassembling the samples one by one. This operating mode not only leads to low overall testing efficiency and consumes a lot of manpower, but the accuracy of the test results is also affected by human factors such as the operator's skill level and experience. Especially when testing the load-bearing efficiency coefficient of nut assemblies, it is necessary to first manually calculate based on the maximum force measured by the rod test, and then manually input the results into the subsequent testing system. This process increases the possibility of data errors. Phenomena such as nut cracking and splashing during the test pose a direct mechanical impact safety hazard to on-site operators. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this application provides an intelligent testing device for the mechanical properties of resin anchor bolts, which solves the problems of low testing efficiency, data being affected by human factors, and safety hazards such as nut explosions causing injury in traditional anchor bolt testing due to reliance on manual operation.
[0005] To achieve the above objectives, this application provides the following technical solution: an intelligent testing device for the mechanical properties of a resin anchor bolt, comprising:
[0006] A double-layered movable anchor bolt hopper serves as the layout center of the testing device, used for staggered storage and provision of anchor bolt body and tail nut assembly samples; The first universal testing machine is installed on the right side of the double-layer movable anchor bolt hopper and is used to perform tensile tests to test the mechanical properties of the anchor bolt body. The second universal testing machine is installed on the left side of the double-layer movable anchor bolt hopper and is used to test the nut bearing efficiency coefficient of the anchor bolt tail assembly. The truss is centrally installed at the front of the double-layer movable anchor bolt silo, serving as the physical load-bearing frame and the carrier for three-dimensional spatial motion execution. The dual-claw manipulator is installed at the bottom of the vertical main beam of the truss and is driven by the truss to perform reciprocating material handling between various workstations, used to grab or release samples; The first waste trolley and the second waste trolley are respectively placed in front of the first universal testing machine and the second universal testing machine, and are used to receive and transfer the waste after the test is completed; The control cabinet is located next to the support beam on one side of the truss. It contains a central control system, which serves as the logic operation and control hub and is communicatively connected to the first universal testing machine, the second universal testing machine, and the truss. An air pump, located at the rear of the control cabinet, is used to provide pneumatic power for the operation of the testing device.
[0007] Preferably, the truss includes support beams and main beams along the x, y, and z axes. A first servo motor is fixedly connected to the top of the x-axis main beam, and a first rack is installed at the output end of the first servo motor. A first slide rail is fixedly connected to the top of the truss, and the first rack is slidably connected to the middle of the first slide rail. A second servo motor is fixedly connected to the outer side of the y-axis main beam, and a second rack is installed at the output end of the second servo motor. A second slide rail is installed at the top of the truss, and the second rack is slidably connected to the middle of the second slide rail. A third servo motor is fixedly connected to the end of the z-axis main beam, and a third rack is installed at the output end of the third servo motor. A third slide rail is installed on the rear side of the truss, and the third rack is slidably connected to the middle of the third slide rail.
[0008] Preferably, the dual-claw manipulator includes a fixed plate, which is fixedly connected to the bottom of the Z-axis main beam. A first cylinder and a second cylinder are respectively installed on the rear side of the fixed plate. An upper claw is fixedly connected to the output end of the first cylinder, and a lower claw is fixedly connected to the output end of the second cylinder. A first limit switch is installed on the outside of the first cylinder, and a second limit switch is installed on the outside of the second cylinder. A third cylinder is installed at the bottom of the fixed plate.
[0009] Preferably, the first universal testing machine includes a first lower crossbeam, which is installed on the rear side of the truss. A first loading cylinder is fixedly connected to the top of the first lower crossbeam. A first upper crossbeam is installed on the outer side of the first loading cylinder. A first upper flat-push jaw is provided at the bottom of the first upper crossbeam. The first upper flat-push jaw is installed on the outer side of the first loading cylinder. A first force sensor is installed on the inner side of the first upper flat-push jaw. A first upper jaw solenoid valve is installed on the outer side of the first upper flat-push jaw. A first lower flat-push jaw is installed at the top of the first lower crossbeam. A first displacement sensor is installed on the inner side of the first lower flat-push jaw. A first lower jaw solenoid valve is installed on the outer side of the first lower flat-push jaw.
[0010] Preferably, a first measurement and control software is provided on the right side of the truss, and a first integrated hydraulic control system is installed on the top of the first measurement and control software.
[0011] Preferably, the second universal testing machine includes a second loading cylinder, which is installed on the left side of the truss. A second lower crossbeam is installed on the top of the second loading cylinder, and a second upper crossbeam is installed on the top of the second lower crossbeam. A second displacement sensor is fixedly connected to the middle of the second upper crossbeam, and a second upper wedge jaw is fixedly connected to the bottom of the second displacement sensor. A second force sensor is installed on the inner side of the second upper wedge jaw, and a second upper jaw solenoid valve is installed inside the second upper wedge jaw. A second lower jaw solenoid valve is installed in the middle of the second loading cylinder, and a second lower wedge jaw is fixedly connected to the top of the second lower jaw solenoid valve.
[0012] Preferably, the double-layer movable anchor bolt hopper includes a frame, which is located in the middle of the truss. An upper tray and a lower tray are respectively installed on the top of the frame. Multiple anchor bolt slots are fixedly connected to the top of both the upper and lower trays. A first linear guide rail and a second linear guide rail are fixedly connected to both sides of the frame. The upper tray and the lower tray are slidably connected to the outer sides of the first and second linear guide rails, respectively. A fourth cylinder and a fifth cylinder are respectively installed on both sides of the frame. A third limit switch and a fourth limit switch are installed on the outer side of the frame. Two directional wheels are installed at the bottom of the frame. Two third omnidirectional wheels are fixedly connected to the side of the frame away from the two directional wheels. A positioning device including a first frame is installed at the bottom of the frame. The first frame is located on one side of the truss. A first drawer is slidably connected to the rear side of the first frame. Multiple first omnidirectional wheels are fixedly connected to the bottom of the first frame.
[0013] Preferably, the first waste trolley includes a first frame, which is disposed on one side of the truss. A first drawer is slidably connected to the rear side of the first frame, and a plurality of first casters are fixedly connected to the bottom of the first frame.
[0014] Preferably, the second waste trolley includes a second frame, which is disposed on the other side of the truss. A second drawer is slidably connected to the rear side of the second frame, and a plurality of second casters are fixedly connected to the bottom of the second frame.
[0015] Preferably, a second integrated hydraulic control system is provided on the outside of the truss, a second measurement and control software is installed on the outside of the second integrated hydraulic control system, a nut and washer test fixture is installed on the top of the second loading cylinder, and a loading cylinder unloading valve is installed on the bottom of the second loading cylinder.
[0016] This application provides an intelligent testing device for the mechanical properties of resin anchor bolts. It has the following beneficial effects: 1. This application realizes the automation of the entire process of anchor bolt testing, improves inspection efficiency and reduces labor intensity. By setting up a truss and a double-claw manipulator at its bottom, combined with a double-layer mobile anchor bolt hopper as the layout center, the testing device can automatically complete the positioning, gripping, spatial transfer, posture switching and clamping operations of the anchor bolt body and tail nut assembly. The inspector only needs to place the samples in the tray slots in advance and set the parameters in the control cabinet. The equipment can then continuously and automatically complete the operation of multiple sets of samples under the drive of the main control system and the air pump, reducing manual intervention and cumbersome loading and unloading links.
[0017] 2. This application improves the objectivity and accuracy of test data and constructs an intelligent collaborative mechanism between multi-process testing. The internal control system of the device connects the first universal testing machine and the second universal testing machine for communication. After the first universal testing machine completes the tensile test of the anchor rod body mechanical properties, the system can automatically extract the maximum force data fed back by the tension sensor and directly calculate and generate the termination conditions required for the second universal testing machine to perform the nut bearing efficiency test. This adaptive linkage of data between workstations avoids the operational errors caused by the traditional manual reading of the maximum force, manual calculation of bearing capacity and re-entry of parameters, and ensures the reliability of the test results.
[0018] 3. This application overcomes the coordination problem of unloading fractured specimens and resetting the equipment, and fundamentally eliminates safety hazards in the testing process. In response to the problem that the crossbeam of the testing machine deviates from its original position due to excessive elongation after the anchor bolt breaks, and that conventional robotic arms have difficulty picking up the material, this device is designed with a step-by-step control logic in which the double-claw robotic arm first grabs the waste material from the lower flat-pushing jaws, and then grabs the waste material from the upper jaws after the loading cylinder is unloaded and reset. This ensures smooth automated material cleaning. In conjunction with the automatic material receiving of the first and second waste carts, physical isolation between the human and machine areas is achieved, preventing personnel from suffering mechanical injuries caused by the flying debris from the exploding nuts during the test. Attached Figure Description
[0019] Figure 1 This is a perspective view of the present application; Figure 2 This is a structural schematic diagram of the truss and dual-claw manipulator of this application; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the structure of the first universal testing machine of this application; Figure 5 This is a schematic diagram of the structure of the second universal testing machine of this application; Figure 6 This is a structural schematic diagram of the double-layer movable anchor bolt silo of this application; Figure 7 This is a schematic diagram of the structure of the first waste trolley in this application.
[0020] Among them, 1. Truss; 11. First servo motor; 12. First rack; 13. First slide rail; 14. Second servo motor; 15. Second rack; 16. Second slide rail; 17. Third servo motor; 18. Third rack; 19. Third slide rail; 2. Double-jaw manipulator; 21. Upper jaw; 22. Lower jaw; 23. Fixing plate; 24. First cylinder; 25. Second cylinder; 26. Third cylinder; 27. First limit switch; 28. Second limit switch; 3. First Universal Testing Machine; 31. First Upper Crossbeam; 32. First Lower Crossbeam; 33. First Loading Cylinder; 34. First Upper Push Jaw; 35. First Lower Push Jaw; 36. First Upper Jaw Solenoid Valve; 37. First Lower Jaw Solenoid Valve; 38. First Force Sensor; 39. First Displacement Sensor; 310. First Integrated Hydraulic Control System; 311. First Measurement and Control Software; 4. Second Universal Testing Machine; 41. Second Upper Crossbeam; 42. Second Lower Crossbeam; 43. Second 44. Loading cylinder; 45. Second upper wedge jaw; 46. Second lower wedge jaw; 47. Second upper jaw solenoid valve; 48. Second lower jaw solenoid valve; 49. Second force sensor; 40. Second displacement sensor; 410. Loading cylinder unloading valve; 411. Nut washer test fixture; 412. Second integrated hydraulic control system; 413. Second measurement and control software; 5. Double-layer movable anchor bolt hopper; 51. Frame; 52. Upper pallet; 53. Lower pallet; 54. Anchor bolt slot; 55. First linear guide rail; 56. Second linear guide rail; 57. Fourth cylinder; 58. Fifth cylinder; 59. Third limit switch; 510. Fourth limit switch; 511. Positioning device; 512. Directional wheel; 513. Third omnidirectional wheel; 6. First waste trolley; 61. First drawer; 62. First frame; 63. First omnidirectional wheel; 7. Second waste trolley; 71. Second drawer; 72. Second frame; 73. Second omnidirectional wheel; 8. Control cabinet; 9. Air pump. Detailed Implementation
[0021] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0022] Please see the appendix Figure 1 - Appendix Figure 7 This application provides an intelligent testing device for the mechanical properties of resin anchor bolts, comprising: The double-layer movable anchor bolt hopper 5 serves as the layout center of the testing device, used for staggered storage and provision of anchor bolt body and tail nut assembly samples; The first universal testing machine 3 is installed on the right side of the double-layer movable anchor bolt hopper 5 and is used to perform tensile tests to test the mechanical properties of the anchor bolt body. The second universal testing machine 4 is installed on the left side of the double-layer movable anchor bolt hopper 5 and is used to test the nut bearing efficiency coefficient of the anchor bolt tail assembly. Truss 1 is centrally installed on the front side of the double-layer movable anchor bolt silo 5, serving as the physical load-bearing frame and the carrier for three-dimensional spatial motion execution. The dual-claw manipulator 2 is installed at the bottom of the vertical main beam of the truss 1. Driven by the truss 1, it performs reciprocating material handling between various workstations and is used to grab or release samples. The first waste trolley 6 and the second waste trolley 7 are placed in front of the first universal testing machine 3 and the second universal testing machine 4, respectively, to receive and transfer the waste after the test. The control cabinet 8 is located next to the support beam on one side of the truss 1. It contains a central control system, which serves as the logic operation and control hub and is connected to the first universal testing machine 3, the second universal testing machine 4 and the truss 1. Air pump 9, located at the rear of control cabinet 8, is used to provide pneumatic power for the operation of the testing device.
[0023] Truss 1 includes support beams and main beams along the x, y, and z axes. A first servo motor 11 is fixedly connected to the top of the x-axis main beam, and a first rack 12 is installed at the output end of the first servo motor 11. A first slide rail 13 is fixedly connected to the top of truss 1, and the first rack 12 is slidably connected to the middle of the first slide rail 13. A second servo motor 14 is fixedly connected to the outer side of the y-axis main beam, and a second rack 15 is installed at the output end of the second servo motor 14. A second slide rail 16 is installed at the top of truss 1, and the second rack 15 is slidably connected to the middle of the second slide rail 16. A third servo motor 17 is fixedly connected to the end of the z-axis main beam, and a third rack 18 is installed at the output end of the third servo motor 17. A third slide rail 19 is installed on the rear side of truss 1, and the third rack 18 is slidably connected to the middle of the third slide rail 19. The central control system issues action commands to control the truss 1 to move in three-dimensional space: the first servo motor 11 drives the first rack 12 to slide in the middle of the first slide rail 13 to achieve x-axis translation; the second servo motor 14 drives the second rack 15 to slide in the middle of the second slide rail 16 to achieve y-axis translation; the third servo motor 17 drives the third rack 18 to slide in the middle of the third slide rail 19 to achieve z-axis lifting.
[0024] The dual-claw manipulator 2 includes a fixed plate 23, which is fixedly connected to the bottom of the Z-axis main beam. A first cylinder 24 and a second cylinder 25 are respectively installed on the rear side of the fixed plate 23. The output end of the first cylinder 24 is fixedly connected to the upper claw 21, and the output end of the second cylinder 25 is fixedly connected to the lower claw 22. A first limit switch 27 is installed on the outside of the first cylinder 24, and a second limit switch 28 is installed on the outside of the second cylinder 25. A third cylinder 26 is installed at the bottom of the fixed plate 23. The dual-claw manipulator 2 is moved to the corresponding gripping point on the lower tray 53. The first cylinder 24 and the second cylinder 25 on the rear side of the fixing plate 23 drive the upper claw 21 and the lower claw 22 to clamp the anchor rod body in a horizontal position. The clamping status is fed back in real time by the first limit switch 27 and the second limit switch 28. If the clamp is empty, an alarm is triggered. After successful gripping, the third cylinder 26 at the bottom is activated to rotate the dual-claw manipulator 2 by 90°, so that the sample changes from a horizontal position to the vertical position required for testing.
[0025] In a preferred embodiment of this application, the first universal testing machine 3 includes a first lower crossbeam 32, which is installed on the rear side of the truss 1. A first loading cylinder 33 is fixedly connected to the top of the first lower crossbeam 32. A first upper crossbeam 31 is installed on the outer side of the first loading cylinder 33. A first upper flat push jaw 34 is provided at the bottom of the first upper crossbeam 31. The first upper flat push jaw 34 is installed on the outer side of the first loading cylinder 33. A first force sensor 38 is installed on the inner side of the first upper flat push jaw 34. A first upper jaw solenoid valve 36 is installed on the outer side of the first upper flat push jaw 34. A first lower flat push jaw 35 is installed on the top of the first lower crossbeam 32. A first displacement sensor 39 is installed on the inner side of the first lower flat push jaw 35. A first lower jaw solenoid valve 37 is installed on the outer side of the first lower flat push jaw 35. The main control system controls the operation of the first upper jaw solenoid valve 36 and the first lower jaw solenoid valve 37, causing the first upper horizontal push jaw 34 and the first lower horizontal push jaw 35, located on the top of the first lower crossbeam 32, to clamp the sample. The robot arm releases and then withdraws. The right side of the truss 1 is equipped with the first measurement and control software 311, and the top of the first measurement and control software 311 is equipped with the first integrated hydraulic control system 310. Data is collected in real time by the first force sensor 38 and the first displacement sensor 39 to calculate indicators such as yield strength and tensile strength. After the rod breaks, the measured maximum force data will be fed back to the main control system in real time.
[0026] The second universal testing machine 4 includes a second loading cylinder 43, which is installed on the left side of the truss 1. A second lower crossbeam 42 is installed on the top of the second loading cylinder 43, and a second upper crossbeam 41 is installed on the top of the second lower crossbeam 42. A second displacement sensor 49 is fixedly connected to the middle of the second upper crossbeam 41, and a second upper wedge jaw 44 is fixedly connected to the bottom of the second displacement sensor 49. A second force sensor 48 is installed on the inner side of the second upper wedge jaw 44, and a second upper jaw solenoid valve 46 is installed inside the second upper wedge jaw 44. A second lower jaw solenoid valve 47 is installed in the middle of the second loading cylinder 43, and a second lower wedge jaw 45 is fixedly connected to the top of the second lower jaw solenoid valve 47. The truss 1 drives the dual-claw manipulator 2 to sequentially grab the corresponding anchor bolt tail assembly from the hopper and push it horizontally into the nut washer test fixture 411 located on top of the second loading cylinder 43. The main control system controls the second upper jaw solenoid valve 46 and the second lower jaw solenoid valve 47 to actuate, so that the second upper wedge jaw 44 and the second lower wedge jaw 45 at the bottom clamp the sample. A second integrated hydraulic control system 412 is set on the outside of the truss 1, and a second measurement and control software 413 is installed on the outside of the second integrated hydraulic control system 412. The nut washer test fixture 411 is installed on the top of the second loading cylinder 43, and a loading cylinder unloading valve 410 is installed on the bottom of the second loading cylinder 43. In a preferred embodiment of this application, the double-layer movable anchor bolt hopper 5 includes a frame 51, which is located in the middle of the truss 1. An upper tray 52 and a lower tray 53 are respectively installed on the top of the frame 51. Multiple anchor bolt slots 54 are fixedly connected to the top of both the upper tray 52 and the lower tray 53. A first linear guide rail 55 and a second linear guide rail 56 are fixedly connected to both sides of the frame 51. The upper tray 52 and the lower tray 53 are slidably connected to the outside of the first linear guide rail 55 and the second linear guide rail 56, respectively. A fourth cylinder 57 and a fifth cylinder 58 are respectively installed on both sides of the frame 51. The outer side is equipped with a third limit switch 59 and a fourth limit switch 510. The bottom of the frame 51 is equipped with two directional wheels 512. The side of the frame 51 away from the two directional wheels 512 is fixedly connected with two third universal wheels 513. The bottom of the frame 51 is equipped with a positioning device 511. The double-claw manipulator 2 takes samples in sequence according to the sample placement order of the double-layer moving anchor bolt hopper 5. After all the samples in the lower tray 53 are taken, the fourth cylinder 57 and the fifth cylinder 58 drive the upper tray 52 to switch positions with the lower tray 53. The working status of the tray is detected by the third limit switch 59 and the fourth limit switch 510.
[0027] The first waste trolley 6 includes a first frame 62, which is located on one side of the truss 1. A first drawer 61 is slidably connected to the rear of the first frame 62, and multiple first casters 63 are fixedly connected to the bottom of the first frame 62. The second waste trolley 7 includes a second frame 72, which is located on the other side of the truss 1. A second drawer 71 is slidably connected to the rear of the second frame 72, and multiple second casters 73 are fixedly connected to the bottom of the second frame 72. Workers can push the waste trolley using the first casters 63 and the second casters 73 to pull out the first drawer 61 on the first frame 62 and the second drawer 71 on the second frame 72 to dump the waste.
[0028] Working principle: Before the test begins, the inspectors first place multiple sets, such as 30 sets, of anchor rod body and tail nut assembly samples in the sample preparation area, and place them alternately in the anchor rod slots 54 of the upper tray 52 and lower tray 53 on the top of the frame 51 of the double-layer mobile anchor rod hopper 5 according to the test sequence. Then, the double-layer mobile anchor rod hopper 5 is pushed into the test area in the center of the equipment layout by the bottom directional wheel 512 and the third universal wheel 513, and fixed by the positioning device 511.
[0029] The operator turns on the main control system inside the control cabinet 8, and the air pump 9 at the rear provides pneumatic power to the entire system. After inputting the sample number, specifications and corresponding load-bearing efficiency coefficient and other configuration parameters into the main control system, the system enters the automatic testing process.
[0030] The central control system issues action commands to control the truss 1 to move in three-dimensional space: the first servo motor 11 at the top of the x-axis main beam drives the first rack 12 to slide in the middle of the first slide rail 13 to achieve x-axis translation; the second servo motor 14 on the outer side of the y-axis main beam drives the second rack 15 to slide in the middle of the second slide rail 16 to achieve y-axis translation; the third servo motor 17 at the end of the z-axis main beam drives the third rack 18 to slide in the middle of the third slide rail 19 to achieve z-axis lifting; thereby driving the bottom double-claw manipulator 2 to move to the corresponding gripping point of the lower tray 53. The first cylinder 24 and the second cylinder 25 on the rear side of the fixed plate 23 drive the upper claw 21 and the lower claw 22 to clamp the anchor rod body in a horizontal posture. The clamping status is fed back in real time by the first limit switch 27 and the second limit switch 28. If the clamp is empty, an alarm is triggered. After successful gripping, the bottom third cylinder 26 is activated to rotate the double-claw manipulator 2 by 90°, so that the sample changes from a horizontal posture to the vertical posture required for testing.
[0031] Truss 1 drives the double-jaw manipulator 2 to push the vertical rod horizontally into the first universal testing machine 3 on the right. The main control system controls the first upper jaw solenoid valve 36 and the first lower jaw solenoid valve 37 to actuate, so that the first upper horizontal push jaw 34 and the first lower horizontal push jaw 35 set on the top of the first lower crossbeam 32 clamp the sample. After the manipulator releases, it retracts. The main control system sends the test parameters to the first measurement and control software 311, which controls the first integrated hydraulic control system 310 to drive the first loading cylinder 33, which drives the first upper crossbeam 31 to rise to conduct the rod tensile test. During the test, the first force sensor 38 and the first displacement sensor 39 collect data in real time and calculate indicators such as yield strength and tensile strength. After the rod breaks, the measured maximum force data will be fed back to the main control system in real time.
[0032] The main control system calculates the maximum force obtained from the previous test in combination with the bearing efficiency coefficient, and uses it as the test termination condition for the second universal testing machine 4 on the left. The truss 1 drives the double-claw manipulator 2 to grab the corresponding anchor bolt tail assembly from the hopper in sequence and push it into the nut washer test fixture 411 located on top of the second loading cylinder 43. The main control system controls the second upper jaw solenoid valve 46 and the second lower jaw solenoid valve 47 to actuate, so that the second upper wedge jaw 44 and the second lower wedge jaw 45 at the bottom clamp the sample. The second measurement and control software 413 drives the second loading cylinder 43 to perform the loading test between the second lower crossbeam 42 and the second upper crossbeam 41 through the second integrated hydraulic control system 412. The test data is collected by the second force sensor 48 and the second displacement sensor 49.
[0033] While the nut test is being conducted, the system processes the scrap material from the broken rod in parallel. Addressing the issues of high elongation after the rod breaks and difficulty in retrieving material due to the testing machine's crossbeam not being in its original position, this device employs a step-by-step gripping and resetting logic: the dual-jaw manipulator 2 first moves to the first lower horizontal jaw 35, where the lower jaw 22 grips the lower half of the broken scrap material, and the jaws release to remove the scrap material; subsequently, the central control system sends a signal, the first loading cylinder 33 unloads, and the first upper crossbeam 31 resets to its initial position; after resetting, the manipulator repeats the same process... The process grabs the upper half of the waste material at the first upper flat push jaw 34. The removed waste material is transferred by the robot to the top of the first waste trolley 6 and the second waste trolley 7 on the front side of the testing machine for unloading. The operator can push the waste trolley through the first universal wheel 63 and the second universal wheel 73 to pull out the first drawer 61 on the first frame 62 and the second drawer 71 on the second frame 72 to dump the waste material. After testing the waste material of the second universal testing machine 4, the loading cylinder is reset through the loading cylinder unloading valve 410.
[0034] The dual-claw manipulator 2 performs cyclical movements according to the above process. After all the samples in the lower tray 53 have been taken, the fourth cylinder 57 and the fifth cylinder 58 on both sides of the double-layer moving anchor bolt hopper 5 are activated, driving the upper tray 52 and the lower tray 53 to slide along the first linear guide rail 55 and the second linear guide rail 56 to exchange their upper and lower positions. The operation status is monitored in real time by the third limit switch 59 and the fourth limit switch 510. After the tray is changed, the system continues to perform the gripping and testing cycle until all batches of samples have been tested in an unmanned and fully automatic manner.
[0035] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An intelligent testing device for the mechanical properties of a resin anchor bolt, characterized in that, include: The double-layer movable anchor bolt hopper (5) serves as the layout center of the test device, used for staggered storage and provision of anchor bolt body and tail nut assembly samples; The first universal testing machine (3) is installed on the right side of the double-layer movable anchor bolt hopper (5) and is used to perform tensile tests to test the mechanical properties of the anchor bolt body; The second universal testing machine (4) is installed on the left side of the double-layer movable anchor bolt hopper (5) and is used to test the nut bearing efficiency coefficient of the anchor bolt tail assembly. The truss (1) is centrally installed on the front side of the double-layer movable anchor hopper (5) as a physical load-bearing frame and a three-dimensional space motion execution carrier; The dual-claw manipulator (2) is installed at the bottom of the vertical main beam of the truss (1) and is driven by the truss (1) to perform material handling reciprocating motion between each workstation for gripping or releasing samples. The first waste trolley (6) and the second waste trolley (7) are placed in front of the first universal testing machine (3) and the second universal testing machine (4), respectively, to receive and transfer the waste after the test. The control cabinet (8) is located next to the support beam on one side of the truss (1). It is equipped with a central control system, which serves as the logic operation and control hub and is connected to the first universal testing machine (3), the second universal testing machine (4) and the truss (1) in communication. An air pump (9) is located on the rear side of the control cabinet (8) and is used to provide pneumatic power for the operation of the test device.
2. The intelligent testing device for the mechanical properties of resin anchor bolts according to claim 1, characterized in that, The truss (1) includes a support beam and main beams for the x, y, and z axes. A first servo motor (11) is fixedly connected to the top of the main beam for the x axis. A first rack (12) is installed at the output end of the first servo motor (11). A first slide rail (13) is fixedly connected to the top of the truss (1). The first rack (12) is slidably connected to the middle of the first slide rail (13). A second servo motor (14) is fixedly connected to the outer side of the main beam for the y axis. A second rack (15) is installed at the output end of the second servo motor (14). A second slide rail (16) is installed at the top of the truss (1). The second rack (15) is slidably connected to the middle of the second slide rail (16). A third servo motor (17) is fixedly connected to the end of the main beam for the z axis. A third rack (18) is installed at the output end of the third servo motor (17). A third slide rail (19) is installed on the rear side of the truss (1). The third rack (18) is slidably connected to the middle of the third slide rail (19).
3. The intelligent testing device for the mechanical properties of resin anchor bolts according to claim 1, characterized in that, The dual-claw manipulator (2) includes a fixed plate (23), which is fixedly connected to the bottom of the z-axis main beam. A first cylinder (24) and a second cylinder (25) are respectively installed on the rear side of the fixed plate (23). An upper claw (21) is fixedly connected to the output end of the first cylinder (24), and a lower claw (22) is fixedly connected to the output end of the second cylinder (25). A first limit switch (27) is installed on the outside of the first cylinder (24), and a second limit switch (28) is installed on the outside of the second cylinder (25). A third cylinder (26) is installed at the bottom of the fixed plate (23).
4. The intelligent testing device for the mechanical properties of resin anchor bolts according to claim 1, characterized in that, The first universal testing machine (3) includes a first lower crossbeam (32), which is installed on the rear side of the truss (1). A first loading cylinder (33) is fixedly connected to the top of the first lower crossbeam (32). A first upper crossbeam (31) is installed on the outside of the first loading cylinder (33). A first upper flat push jaw (34) is provided at the bottom of the first upper crossbeam (31). The first upper flat push jaw (34) is installed on the outside of the first loading cylinder (33). A first force sensor (38) is installed on the inside of the first upper flat push jaw (34). A first upper jaw solenoid valve (36) is installed on the outside of the first upper flat push jaw (34). A first lower flat push jaw (35) is installed on the top of the first lower crossbeam (32). A first displacement sensor (39) is installed on the inside of the first lower flat push jaw (35). A first lower jaw solenoid valve (37) is installed on the outside of the first lower flat push jaw (35).
5. The intelligent testing device for the mechanical properties of resin anchor bolts according to claim 1, characterized in that, The right side of the truss (1) is provided with a first measurement and control software (311), and the top of the first measurement and control software (311) is equipped with a first integrated hydraulic control system (310).
6. The intelligent testing device for the mechanical properties of resin anchor bolts according to claim 1, characterized in that, The second universal testing machine (4) includes a second loading cylinder (43), which is installed on the left side of the truss (1). A second lower crossbeam (42) is installed on the top of the second loading cylinder (43), and a second upper crossbeam (41) is installed on the top of the second lower crossbeam (42). A second displacement sensor (49) is fixedly connected to the middle of the second upper crossbeam (41), and a second upper wedge jaw (44) is fixedly connected to the bottom of the second displacement sensor (49). A second force sensor (48) is installed on the inner side of the second upper wedge jaw (44), and a second upper jaw solenoid valve (46) is installed inside the second upper wedge jaw (44). A second lower jaw solenoid valve (47) is installed in the middle of the second loading cylinder (43), and a second lower wedge jaw (45) is fixedly connected to the top of the second lower jaw solenoid valve (47).
7. The intelligent testing device for the mechanical properties of resin anchor bolts according to claim 1, characterized in that, The double-layer movable anchor bolt hopper (5) includes a frame (51), which is located in the middle of the truss (1). An upper tray (52) and a lower tray (53) are respectively installed on the top of the frame (51). Multiple anchor bolt slots (54) are fixedly connected to the top of the upper tray (52) and the lower tray (53). A first linear guide rail (55) and a second linear guide rail (56) are fixedly connected to both sides of the frame (51). The upper tray (52) and the lower tray (53) are slidably connected to the first linear guide rail (55) and the second linear guide rail (56). Outside the linear guide rail (55) and the second linear guide rail (56), a fourth cylinder (57) and a fifth cylinder (58) are respectively installed on both sides of the frame (51). A third limit switch (59) and a fourth limit switch (510) are installed on the outside of the frame (51). Two directional wheels (512) are installed at the bottom of the frame (51). Two third universal wheels (513) are fixedly connected to the side of the frame (51) away from the two directional wheels (512). A positioning device (511) is installed at the bottom of the frame (51).
8. The intelligent testing device for the mechanical properties of resin anchor bolts according to claim 1, characterized in that, The first waste trolley (6) includes a first frame (62), which is disposed on one side of the truss (1). A first draw plate (61) is slidably connected to the rear side of the first frame (62), and a plurality of first casters (63) are fixedly connected to the bottom of the first frame (62).
9. The intelligent testing device for the mechanical properties of resin anchor bolts according to claim 1, characterized in that, The second waste trolley (7) includes a second frame (72), which is located on the other side of the truss (1). A second drawer (71) is slidably connected to the rear side of the second frame (72), and a plurality of second casters (73) are fixedly connected to the bottom of the second frame (72).
10. The intelligent testing device for the mechanical properties of resin anchor bolts according to claim 6, characterized in that, The truss (1) is provided with a second integrated hydraulic control system (412) on the outside, and a second measurement and control software (413) is installed on the outside of the second integrated hydraulic control system (412). A nut washer test fixture (411) is installed on the top of the second loading cylinder (43), and a loading cylinder unloading valve (410) is installed on the bottom of the second loading cylinder (43).