Cement strength testing device

Abstract

The present invention belongs to the technical field of cement testing, and specifically refers to a cement strength testing device, including a base frame, a fixture switching assembly, a cement block moving assembly and a pressure assembly. The switching rotating motor can drive the switching arc plate to rotate, realize the automatic switching of the anti-flexure testing fixture and the anti-compression testing fixture, and automatically complete the testing process of the anti-flexure strength and anti-compression strength of the cement block through the mobile manipulator, saving the steps of manual assembly and disassembly of the testing cement block; when the testing cement block is undergoing compressive strength testing, the anti-splash protective cloth cover can automatically fall and surround the anti-compression testing fixture, limiting the splash range of debris when the testing cement block is damaged by pressure, protecting the safety of the experimenter; the rotating cleaning brush can automatically clean the anti-flexure testing fixture and the anti-compression testing fixture respectively, and the testing cement block damaged in the anti-compression testing fixture can also be automatically dumped into the debris collection box below, realizing the technical effect of automatically cleaning cement debris.

Description

Technical Field

[0001] The invention belongs to the technical field of cement detection, and specifically refers to a cement strength detection device. Background Art

[0002] Cement strength testing is an important method for evaluating cement quality. It reflects the ability of hardened cement stone to withstand external damage. Cement mortar strength testing is a common method for evaluating cement strength. It mainly determines the strength grade of cement by measuring the compressive strength and flexural strength of cement mortar specimens. When conducting cement mortar strength testing, it is necessary to prepare cement mortar specimens using standard test molds, and perform flexural and compressive strength tests on cement mortar specimens using flexural testing machines and compression testing machines.

[0003] In the existing cement mortar strength test process, the experimenter needs to manually place the cement mortar specimen into the flexural testing machine and the compression testing machine. After the flexural testing machine destroys a cement mortar specimen, the experimenter also needs to manually remove the cement mortar specimen broken into two sections and place them separately into the compression testing machine for compressive strength testing. The testing machine may cause damage to the experimenter's hands, which is very dangerous. In addition, the process of manually taking the cement mortar specimen is time-consuming and laborious. After the cement mortar specimen is destroyed by the compression testing machine, the splashing cement residue may cause harm to the experimenter, and the debris needs to be manually cleaned up.

[0004] Therefore, it is necessary to propose a cement strength detection device to solve the technical problems existing in the existing cement strength detection process. Summary of the invention

[0005] The present invention overcomes the shortcomings of the prior art and provides a cement strength testing device. An experimenter places a testing cement block on a cement block rack, and the testing cement block is automatically moved to an anti-flexure testing fixture and an anti-compression testing fixture by a mobile manipulator. The experimenter does not need to move the testing cement block by hand, thereby ensuring the safety of the experimenter and saving manpower. The switching rotating motor can drive the switching arc plate to rotate, so that the anti-flexure testing fixture and the anti-compression testing fixture are moved to the upper end of the pressure-bearing column in turn, realizing the automatic switching of the anti-flexure testing fixture and the anti-compression testing fixture, and automatically completing the testing process of the anti-flexure strength and the anti-compression strength of the testing cement block by the mobile manipulator, thus saving the steps of manually assembling and disassembling the testing cement block. When the testing cement block is undergoing an anti-flexure strength test, the mobile manipulator is placed at both ends of the testing cement block to ensure the stability of the position of the testing cement block after being folded and damaged. When the testing cement block is undergoing a compressive strength test, the anti-splash protective cloth cover can automatically drop and surround the anti-compression testing fixture to limit the splash range of debris when the testing cement block is compressed and damaged, thereby protecting the safety of the experimenter.

[0006] The technical solution adopted by the present invention is as follows: The present invention provides a cement strength detection device, including a base frame, a cement block placing platform is provided on one side of the base frame, a pressure column is provided at the center of the upper wall of the base frame, a clamp switching assembly is movably provided above the pressure column, a pressure assembly is movably provided above the clamp switching assembly, a cement block moving assembly is movably provided above the cement block placing platform, a control panel is provided on the edge of the cement block placing platform away from the base frame, and a debris collection box is symmetrically and movably provided on the upper wall of the base frame.

[0007] Among them, the fixture switching assembly includes an anti-bending detection fixture, an anti-compression detection fixture, a switching arc plate and a swing rod. The lower end of the swing rod is symmetrically rotated and arranged on the side wall of the pressure-bearing column. The switching arc plate is connected between the upper ends of the swing rod. The lower wall of the switching arc plate is arranged in contact with the upper end surface of the pressure-bearing column. The anti-bending detection fixture and the anti-compression detection fixture are respectively arranged at the two ends of the upper wall of the switching arc plate. A switching rotating motor is provided in the pressure-bearing column. The output end of the switching rotating motor is connected to the lower end of the swing rod. When the swing rod swings, the anti-bending detection fixture and the anti-compression detection fixture are respectively moved to the upper end of the pressure-bearing column.

[0008] Furthermore, the cement block moving assembly includes a mechanical arm moving frame, a mobile mechanical arm and a mobile mechanical arm, the mechanical arm moving frame is movably arranged on the upper wall of the cement block placing table, the mobile mechanical arm is slidably arranged on the inner side of the mechanical arm moving frame, the number of the mobile mechanical arms is two, and the mobile mechanical arms are respectively arranged at one end of the mobile mechanical arm close to the clamp switching assembly, the mobile mechanical arm includes a side limit plate, a clamping plate, an upper limit plate, a double-threaded screw and a third screw, the side limit plate is fixedly arranged at one end of the mobile mechanical arm close to the clamp switching assembly, the clamping plates are symmetrically opened and closed on the opposite side walls of the two side limit plates, the upper limit plate is slidably arranged above the clamping plate, the double-threaded screw is respectively arranged on the opposite side walls of the two side limit plates, the third screw is arranged above the double-threaded screw, and the directions of the threads at both ends of the side walls of the double-threaded screw are opposite.

[0009] Furthermore, the opposite side walls of the symmetrical clamping plate are respectively provided with clamping conveying rollers in an array, the lower end of one end of the clamping conveying roller is provided with a conveying motor, the output end of the conveying motor is connected to the lower end of the clamping conveying roller, and the outer wall of the clamping conveying roller is surrounded by a clamping conveying belt.

[0010] Furthermore, a lower limit plate is provided at the lower end of the side limit plate, the clamping plate is arranged above the lower limit plate, a clamping arm is provided at one end of the clamping plate close to the side limit plate, a clamping sliding block is provided at the end of the clamping arm, the clamping sliding block is symmetrically sleeved on the side walls of the double-threaded screw, the clamping sliding blocks are respectively threadedly connected to the side walls at both ends of the double-threaded screw in opposite directions of the thread, a clamping motor is provided at the end of the double-threaded screw, the output end of the clamping motor is connected to the end of the double-threaded screw, the upper wall of the upper limit plate is provided with a limit plate supporting arm, the end of the limit plate supporting arm is provided with a limit sliding block, the limit sliding block is sleeved on the side wall of the third screw, the limit sliding block is threadedly connected to the third screw, the upper end of the third screw is provided with a third motor, and the output end of the third motor is connected to the end of the third screw.

[0011] Furthermore, a screw connecting block is provided at the center of the upper end of the robotic arm moving frame, and a second screw is symmetrically connected between the screw connecting block and the inner side wall of the robotic arm moving frame, the upper ends of the mobile robotic arms are respectively sleeved on the side walls of the symmetrical second screw, and the upper ends of the mobile robotic arms are respectively threadedly connected to the second screw, and a second motor is symmetrically provided in the screw connecting block, and the output ends of the second motor are respectively connected to the ends of the symmetrical second screw.

[0012] Furthermore, the anti-bending detection fixture comprises an anti-bending upper fixture seat, an anti-bending lower fixture seat, an anti-bending connecting arm, an anti-bending upper pressure plate, an anti-bending lower pressure plate and an anti-bending bottom plate, the anti-bending lower fixture seat is arranged at one end of the switching arc plate, the anti-bending upper fixture seat is arranged above the anti-bending lower fixture seat, the anti-bending connecting arm is connected between the anti-bending upper fixture seat and the anti-bending lower fixture seat, the anti-bending upper pressure plate is movably arranged above the anti-bending upper fixture seat, the lower wall center of the anti-bending upper pressure plate is provided with an anti-bending connecting shaft, and the anti-bending connecting shaft passes through It is arranged at the center of the upper wall of the anti-bending upper clamp seat, and the anti-bending lower pressure plate is arranged at the lower end of the anti-bending connecting shaft. An upper pressure strip is arranged at the center of the lower wall of the anti-bending lower pressure plate. An anti-bending arc guide strip is arranged at one end of the side wall of the anti-bending lower pressure plate close to the cement block placement table. The lower end of the side wall of the upper pressure strip and the lower end of the anti-bending arc guide strip are located in the same horizontal plane. The anti-bending bottom plate is arranged on the upper wall of the anti-bending lower clamp seat, and the upper wall of the anti-bending bottom plate is symmetrically provided with lower pressure strips. A first limit spring is connected between the anti-bending lower pressure plate and the anti-bending upper clamp seat.

[0013] Furthermore, the compression detection fixture includes an upper compression fixture seat, a lower compression fixture seat, a compression connecting arm, an upper compression plate, a compression coupling, a lower compression plate, a second limit spring and a compression bottom plate. The lower compression fixture seat is arranged at the other end of the switching arc plate. The structural relationship of the upper compression fixture seat, the lower compression fixture seat, the compression connecting arm, the upper compression plate, the compression coupling, the lower compression plate, the second limit spring and the compression bottom plate is respectively connected to the upper anti-bending fixture seat, the lower anti-bending fixture seat, the anti-bending coupling, the second limit spring and the compression bottom plate. The connecting arm, the anti-bending upper pressure plate, the anti-bending connecting shaft, the anti-bending lower pressure plate, the first limit spring and the anti-bending bottom plate have the same structural relationship. The side wall of the anti-bending lower pressure plate is provided with an anti-bending arc guide strip at one end close to the cement block placement table, and the lower end of the anti-bending arc guide strip is located in the same horizontal plane as the lower wall of the anti-bending lower pressure plate; when the anti-bending detection fixture and the anti-bending detection fixture are respectively located at the upper end of the pressure column, the upper wall of the lower limit plate is respectively located in the same horizontal plane as the upper end of the side wall of the lower pressure strip and the upper wall of the anti-bending bottom plate.

[0014] Furthermore, the pressure assembly includes a lifting cross bar, an anti-splash protective cloth cover, a hydraulic pressure column and a wire winding roller, the lifting cross bar is movably arranged above the clamp switching assembly, an upper support plate is provided at the center of the lower wall of the lifting cross bar, the anti-splash protective cloth cover is movably arranged on the lower wall of the upper support plate, the hydraulic pressure column is arranged at the center of the lower wall of the upper support plate, the hydraulic pressure column is arranged in the anti-splash protective cloth cover, the wire winding roller is symmetrically arranged on both sides of the anti-splash protective cloth cover, the wire winding roller is arranged on the lower wall of the lifting cross bar, the lower end of the anti-splash protective cloth cover is provided with a lower support ring, the side wall of the wire winding roller is wound with a pulling wire, the ends of the pulling wire are respectively fixed at the two ends of the lower support ring, the end of the wire winding roller is provided with a wire winding motor, and the output end of the wire winding motor is connected to the end of the wire winding roller.

[0015] Furthermore, a hydraulic lifting rod is symmetrically provided on the upper wall of the base frame, and the output end of the hydraulic lifting rod is connected to the lower wall of the lifting cross bar, and the upper wall of the cement block placing platform is symmetrically provided with a first screw rod and a first sliding rod, and the lower end of the mechanical arm moving frame is respectively sleeved on the side walls of the first screw rod and the first sliding rod, and the lower end of the mechanical arm moving frame is threadedly connected to the first screw rod, and the end of the first screw rod is provided with a first motor, and the output end of the first motor is connected to the end of the first screw rod, and the upper wall of the cement block placing platform is symmetrically provided with a cement block frame plate near the edge of the clamp switching component, and the upper wall array of the cement block frame plate is provided with a detection cement block, and the upper wall of the cement block frame plate and the upper wall of the lower limit plate are located in the same horizontal plane, and the side wall of the cement block placing platform near the clamp switching component is symmetrically provided with a rotating cleaning brush, and a cleaning brush motor is provided at the end of the rotating shaft of the rotating cleaning brush, and the output end of the cleaning brush motor is connected to the end of the rotating shaft of the rotating cleaning brush, and when the swing rod swings, the rotating cleaning brush is respectively engaged in the anti-bending detection fixture and the anti-compression detection fixture.

[0016] Furthermore, a main controller is provided under the cement block placement table, and the hydraulic lifting rod, the first motor, the cleaning brush motor, the switching rotation motor, the second motor, the conveying motor, the clamping motor, the third motor, the hydraulic pressure column, the winding motor and the control panel are electrically connected to the main controller respectively.

[0017] Furthermore, the model of the main controller is Huichuan AM600 series PLC controller, the clamping conveyor belt is made of anti-slip rubber material, the anti-splash protective cloth cover is made of high-strength polyester fiber cloth, and the test cement block is a cement mortar specimen prepared by the same standard test mold.

[0018] The beneficial effects achieved by the present invention using the above structure are as follows:

[0019] (1) The experimenter places the test cement block on the cement block rack, and the test cement block is automatically moved to the flexural test fixture and the compression test fixture by the mobile robot. The experimenter does not need to move the test cement block by hand, which ensures the safety of the experimenter and saves manpower.

[0020] (2) The switching rotating motor can drive the switching arc plate to rotate, so that the flexural test fixture and the compressive test fixture are moved to the upper end of the pressure column in turn, realizing the automatic switching of the flexural test fixture and the compressive test fixture. The mobile manipulator first moves the test cement block into the flexural test fixture for flexural strength testing. After the test cement block is flexed and damaged, the mobile manipulator places the test cement block broken into two sections in the compressive test fixture in turn for compressive strength testing, realizing the technical effect of automatically completing the flexural strength and compressive strength testing process of the test cement block, saving the steps of manual assembly and disassembly of the test cement block;

[0021] (3) When the mobile manipulator moves the test cement block to the anti-bending test fixture and the anti-compression test fixture respectively, the anti-bending arc guide bar and the anti-compression arc guide bar help the test cement block to be smoothly inserted into the anti-bending test fixture and the anti-compression test fixture;

[0022] (4) When testing the flexural strength of the cement block, the mobile manipulator is placed at both ends of the cement block to ensure the stability of the position of the cement block after it is broken by bending, so as to facilitate the mobile manipulator to re-grip the cement block that has been broken into two parts by bending;

[0023] (5) When testing the compressive strength of cement blocks, the anti-splash protective cloth cover can automatically drop and surround the compressive testing fixture to limit the splash area of ​​debris when the cement blocks are under pressure and protect the safety of the experimenters. The cement debris automatically falls into the debris collection box below, which is easy to clean;

[0024] (6) During the switching process of the arc plate rotation, the rotating cleaning brush will automatically clean the anti-bending test fixture and the compression test fixture respectively. The damaged test cement blocks in the compression test fixture can also be automatically dumped into the debris collection box below, achieving the technical effect of automatically cleaning the cement debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A first structural schematic diagram of a cement strength detection device provided by the present invention;

[0026] Figure 2 A second structural schematic diagram of a cement strength detection device provided by the present invention;

[0027] Figure 3 It is a structural schematic diagram of the base frame, cement block placement table, cement block frame plate, rotating cleaning brush and pressure column;

[0028] Figure 4 It is a structural schematic diagram of the fixture switching component;

[0029] Figure 5 It is a structural schematic diagram of the anti-bending test fixture;

[0030] Figure 6 It is a structural schematic diagram of the compression test fixture;

[0031] Figure 7 A schematic diagram of the structure of a rotating cleaning brush and a fixture switching assembly;

[0032] Figure 8 It is a structural schematic diagram of the cement block moving assembly;

[0033] Fig. 9 is a first structural schematic diagram of a mobile manipulator;

[0034] Fig.10 is a second structural schematic diagram of the mobile manipulator;

[0035] Fig.11 It is a schematic diagram of the structure of the clamping plate, the clamping arm and the clamping conveying roller;

[0036] Fig.12 A schematic diagram of the structure of the mobile manipulator, the flexural strength testing fixture and the testing cement block when testing the flexural strength of the cement block;

[0037] Fig.13 It is a structural schematic diagram of the pressure component;

[0038] Fig.14 This is a schematic diagram of the structure when the splash protection cover is fully deployed.

[0039] Among them, 1. base frame, 11. cement block placement table, 12. hydraulic lifting rod, 13. first screw rod, 131. first motor, 14. first sliding rod, 15. cement block frame, 16. rotating cleaning brush, 161. cleaning brush motor, 17. pressure column, 2. fixture switching assembly, 21. anti-bending detection fixture, 211. anti-bending upper fixture seat, 212. anti-bending lower fixture seat, 213. anti-bending connecting arm, 214. anti-bending upper pressure plate, 2141. anti-bending coupling, 215. anti-bending lower pressure plate , 2151, upper pressure strip, 2152, anti-bending arc guide strip, 2153, first limit spring, 216, anti-bending bottom plate, 2161, lower pressure strip, 22, anti-compression detection fixture, 221, anti-compression upper fixture seat, 222, anti-compression lower fixture seat, 223, anti-compression connecting arm, 224, anti-compression upper pressure plate, 2241, anti-compression coupling, 225, anti-compression lower pressure plate, 2251, anti-compression arc guide strip, 2252, second limit spring, 226, anti-compression bottom plate, 23, switch arc plate, 24, swing rod, 25, switch rotating motor, 3, cement block moving assembly, 31, mechanical arm moving frame, 311, screw rod connecting block, 312, second screw rod, 313, second motor, 32, mobile mechanical arm, 33, mobile manipulator, 331, side limit plate, 3311, lower limit plate, 332, clamping plate, 3321, clamping arm, 3322, clamping sliding block, 3323, clamping conveyor roller, 3324, conveying motor, 3325, clamping conveyor belt, 333, upper limit plate, 33 31. Limit plate support arm, 3332. Limit sliding block, 334. Double-threaded screw, 3341. Clamping motor, 335. Third screw, 3351. Third motor, 4. Pressure assembly, 41. Lifting cross bar, 411. Upper support plate, 42. Anti-splash protective cloth cover, 421. Lower support ring, 43. Hydraulic pressure column, 44. Winding roller, 441. Pulling line, 442. Winding motor, 5. Control panel, 51. Main controller, 6. Detection cement block, 7. Debris collection box. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0041] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0042] See also Figure 1 , Figure 2 and Figure 3 In this embodiment, a cement strength detection device comprises a base frame 1, a fixture switching assembly 2, a cement block moving assembly 3 and a pressure assembly 4. A cement block placing platform 11 is provided on one side of the base frame 1, a pressure column 17 is provided at the center of the upper wall of the base frame 1, the fixture switching assembly 2 is movably arranged above the pressure column 17, the pressure assembly 4 is movably arranged above the fixture switching assembly 2, the cement block moving assembly 3 is movably arranged above the cement block placing platform 11, a control panel 5 is provided on the edge of one side of the cement block placing platform 11 away from the base frame 1, a main controller 51 is provided below the cement block placing platform 11, and a slag collecting box 7 is symmetrically and movably provided on the upper wall of the base frame 1;

[0043] A hydraulic lifting rod 12 is symmetrically provided on the upper wall of the base frame 1, and the output end of the hydraulic lifting rod 12 is connected to the pressure component 4; a first screw rod 13 and a first sliding rod 14 are symmetrically provided on the upper wall of the cement block placing platform 11; a first motor 131 is provided at the end of the first screw rod 13; the output end of the first motor 131 is connected to the end of the first screw rod 13; a cement block frame plate 15 is symmetrically provided on the edge of the upper wall of the cement block placing platform 11 near the clamp switching component 2; a detection cement block 6 is provided on the upper wall array of the cement block frame plate 15; a rotating cleaning brush 16 is symmetrically provided on the side wall of the cement block placing platform 11 near the clamp switching component 2; a cleaning brush motor 161 is provided at the end of the rotating shaft of the rotating cleaning brush 16; and the output end of the cleaning brush motor 161 is connected to the end of the rotating shaft of the rotating cleaning brush 16.

[0044] like Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, the fixture switching assembly 2 includes an anti-bending detection fixture 21, an anti-compression detection fixture 22, a switching arc plate 23 and a swing rod 24. The lower end of the swing rod 24 is symmetrically rotated and arranged on the side wall of the pressure-bearing column 17. The switching arc plate 23 is connected between the upper ends of the swing rod 24. The lower wall of the switching arc plate 23 is fitted with the upper end surface of the pressure-bearing column 17. The anti-bending detection fixture 21 and the anti-compression detection fixture 22 are respectively arranged at the two ends of the upper wall of the switching arc plate 23. A switching rotating motor 25 is provided in the pressure-bearing column 17. The output end of the switching rotating motor 25 is connected to the lower end of the swing rod 24. When the swing rod 24 swings, the anti-bending detection fixture 21 and the anti-compression detection fixture 22 are respectively moved to the upper end of the pressure-bearing column 17, and the rotating cleaning brush 16 is respectively engaged in the anti-bending detection fixture 21 and the anti-compression detection fixture 22.

[0045] The anti-bending detection fixture 21 includes an anti-bending upper fixture seat 211, an anti-bending lower fixture seat 212, an anti-bending connecting arm 213, an anti-bending upper pressure plate 214, an anti-bending lower pressure plate 215 and an anti-bending bottom plate 216. The anti-bending lower fixture seat 212 is arranged at one end of the switching arc plate 23, the anti-bending upper fixture seat 211 is arranged above the anti-bending lower fixture seat 212, the anti-bending connecting arm 213 is connected between the anti-bending upper fixture seat 211 and the anti-bending lower fixture seat 212, the anti-bending upper pressure plate 214 is arranged above the anti-bending upper fixture seat 211 for upward and downward movement, and an anti-bending connecting shaft 2141 is arranged at the center of the lower wall of the anti-bending upper pressure plate 214, and the anti-bending connecting shaft 2141 passes through the anti-bending The upper clamp seat 211 is arranged at the center of the upper wall, the anti-bending lower pressure plate 215 is arranged at the lower end of the anti-bending connecting shaft 2141, an upper pressure strip 2151 is arranged at the center of the lower wall of the anti-bending lower pressure plate 215, and an anti-bending arc guide strip 2152 is arranged at one end of the side wall of the anti-bending lower pressure plate 215 close to the cement block placement platform 11, and the lower end of the side wall of the upper pressure strip 2151 and the lower end of the anti-bending arc guide strip 2152 are located in the same horizontal plane, the anti-bending bottom plate 216 is arranged on the upper wall of the anti-bending lower clamp seat 212, and the upper wall of the anti-bending bottom plate 216 is symmetrically provided with lower pressure strips 2161, and a first limit spring 2153 is connected between the anti-bending lower pressure plate 215 and the anti-bending upper clamp seat 211;

[0046] The compression detection fixture 22 includes an upper compression fixture seat 221, a lower compression fixture seat 222, a compression connecting arm 223, an upper compression plate 224, a compression connecting shaft 2241, a lower compression plate 225, a second limit spring 2252 and a compression bottom plate 226. The lower compression fixture seat 222 is arranged at the other end of the switching arc plate 23. The upper compression fixture seat 221, the lower compression fixture seat 222, the compression connecting arm 223, the upper compression plate 224, the compression connecting shaft 2241, the lower compression plate 225, the second limit spring The structural relationship between 2252 and the anti-compression bottom plate 226 is respectively the same as the structural relationship between the anti-flexure upper clamp seat 211, the anti-flexure lower clamp seat 212, the anti-flexure connecting arm 213, the anti-flexure upper pressure plate 214, the anti-flexure connecting shaft 2141, the anti-flexure lower pressure plate 215, the first limit spring 2153 and the anti-flexure bottom plate 216. The side wall of the anti-flexure lower pressure plate 225 is close to the cement block placement platform 11. One end is provided with an anti-compression arc guide bar 2251, and the lower end of the anti-compression arc guide bar 2251 is located in the same horizontal plane as the lower wall of the anti-flexure lower pressure plate 225.

[0047] like Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown, the cement block moving assembly 3 includes a mechanical arm moving frame 31, a mobile mechanical arm 32 and a mobile mechanical hand 33. The mechanical arm moving frame 31 is movably arranged on the upper wall of the cement block placing platform 11. The lower ends of the mechanical arm moving frame 31 are respectively sleeved on the side walls of the first screw rod 13 and the first sliding rod 14. The lower ends of the mechanical arm moving frame 31 are threadedly connected to the first screw rod 13. The mobile mechanical arm 32 is slidably arranged on the inner side of the mechanical arm moving frame 31. There are two mobile mechanical arms 32. The mobile mechanical hands 33 are respectively arranged at one end of the mobile mechanical arm 32 close to the clamp switching assembly 2. The mobile mechanical hands 33 It includes a side limit plate 331, a clamping plate 332, an upper limit plate 333, a double-threaded screw rod 334 and a third screw rod 335. The side limit plate 331 is fixedly arranged at one end of the mobile mechanical arm 32 close to the clamp switching component 2, the clamping plates 332 are symmetrically opened and closed and arranged on the opposite side walls of the two side limit plates 331, the upper limit plate 333 is slidably arranged above the clamping plate 332, the double-threaded screw rod 334 is respectively arranged on the opposite side walls of the two side limit plates 331, the third screw rod 335 is arranged above the double-threaded screw rod 334, and the threads at both ends of the side walls of the double-threaded screw rod 334 are in opposite directions;

[0048] The opposite side walls of the symmetrical clamping plate 332 are respectively provided with clamping conveying rollers 3323 in an array, and a conveying motor 3324 is provided at the lower end of one end of the clamping conveying roller 3323. The output end of the conveying motor 3324 is connected to the lower end of the clamping conveying roller 3323, and a clamping conveying belt 3325 is provided around the outer wall of the clamping conveying roller 3323.

[0049] A lower limit plate 3311 is provided at the lower end of the side limit plate 331, and the upper wall of the cement block frame plate 15 and the upper wall of the lower limit plate 3311 are located in the same horizontal plane. The clamping plate 332 is arranged above the lower limit plate 3311, and a clamping arm 3321 is provided at one end of the clamping plate 332 close to the side limit plate 331. A clamping sliding block 3322 is provided at the end of the clamping arm 3321. The clamping sliding block 3322 is symmetrically sleeved on the side wall of the double-threaded screw rod 334, and the clamping sliding block 3322 is respectively threadedly connected to the side walls of the double-threaded screw rod 334 at both ends in opposite directions of the thread. A clamping motor 3341 is provided at the end of the screw rod 334, and the output end of the clamping motor 3341 is connected to the end of the double-thread screw rod 334. A limit plate support arm 3331 is provided on the upper wall of the upper limit plate 333, and a limit sliding block 3332 is provided at the end of the limit plate support arm 3331. The limit sliding block 3332 is sleeved on the side wall of the third screw rod 335, and the limit sliding block 3332 is threadedly connected to the third screw rod 335. A third motor 3351 is provided at the upper end of the third screw rod 335, and the output end of the third motor 3351 is connected to the end of the third screw rod 335.

[0050] When the anti-bending test fixture 21 and the anti-compression test fixture 22 are respectively located at the upper end of the pressure-bearing column 17, the upper wall of the lower limit plate 3311 is respectively located at the same horizontal plane as the upper end of the side wall of the lower pressure strip 2161 and the upper wall of the anti-compression bottom plate 226;

[0051] A screw connecting block 311 is provided at the center of the upper end of the robotic arm moving frame 31, and a second screw 312 is symmetrically connected between the screw connecting block 311 and the inner side wall of the robotic arm moving frame 31, and the upper ends of the mobile robotic arms 32 are respectively sleeved on the side walls of the symmetrical second screw 312, and the upper ends of the mobile robotic arms 32 are respectively threadedly connected with the second screw 312, and a second motor 313 is symmetrically provided in the screw connecting block 311, and the output ends of the second motor 313 are respectively connected to the ends of the symmetrical second screw 312.

[0052] like Fig.13 and Fig.14As shown, the pressure assembly 4 includes a lifting cross bar 41, an anti-splash protective cloth cover 42, a hydraulic pressure column 43 and a winding roller 44. The lifting cross bar 41 is movably arranged above the clamp switching assembly 2, and the output end of the hydraulic lifting rod 12 is connected to the lower wall of the lifting cross bar 41. An upper support plate 411 is arranged at the center of the lower wall of the lifting cross bar 41. The anti-splash protective cloth cover 42 is movably arranged on the lower wall of the upper support plate 411. The hydraulic pressure column 43 is arranged at the center of the lower wall of the upper support plate 411. 3 is arranged in the splash-proof protective cloth cover 42, the winding roller 44 is symmetrically arranged on both sides of the splash-proof protective cloth cover 42, the winding roller 44 is arranged on the lower wall of the lifting cross bar 41, the lower end of the splash-proof protective cloth cover 42 is provided with a lower support ring 421, the side wall of the winding roller 44 is wound with a pulling wire 441, the ends of the pulling wire 441 are respectively fixed at the two ends of the lower support ring 421, and the end of the winding roller 44 is provided with a winding motor 442, and the output end of the winding motor 442 is connected to the end of the winding roller 44.

[0053] like Figure 1-Figure 14 As shown, the hydraulic lifting rod 12, the first motor 131, the cleaning brush motor 161, the switching rotation motor 25, the second motor 313, the conveying motor 3324, the clamping motor 3341, the third motor 3351, the hydraulic pressure column 43, the winding motor 442 and the control panel 5 are electrically connected to the main controller 51 respectively.

[0054] Working principle and working steps:

[0055] Cement strength testing usually uses the mortar method, which is to mix cement and standard sand in a certain proportion, add an appropriate amount of water, use a standard test mold to make a cement mortar specimen, and after curing under specified conditions, measure its compressive and flexural strength after a specified time (such as 3 days and 28 days). The standard specimen size of the cement mortar strength test is a prism of 40mm×40mm×160mm. Generally, the flexural strength of the cement mortar specimen is tested first, and the specimen is broken into two sections by bending. Then the two sections are tested for compressive strength separately. The number of cement mortar specimens prepared by the same standard test mold is usually three.

[0056] Before the test begins, the experimenter takes out three cured test cement blocks 6 and places them on the cement block rack 15. Positioning lines can be marked on the side walls of the cement block rack 15. When placing the test cement blocks 6, the experimenter can align the test cement blocks 6 with the positioning lines to ensure the uniformity of the positions of the test cement blocks 6, making it convenient for the subsequent mobile manipulator 33 to accurately fix the test cement blocks 6. After the test cement blocks 6 are placed, the experimenter starts the test process through the control panel 5.

[0057] When the detection starts, the main controller 51 will control the first motor 131 to start and drive the first screw rod 13 to rotate, and the lower end of the robot arm moving frame 31 moves with the rotation of the first screw rod 13. The main controller 51 makes the robot arm moving frame 31 drive the mobile manipulator 33 to move to the two ends of the front end detection cement block 6 according to the system preset instructions. At the same time, the symmetrical second motor 313 is started synchronously to rotate the symmetrical second screw rod 312. The symmetrical mobile robot arm 32 moves synchronously toward the position of the detection cement block 6 under the rotation of the second screw rod 312 until the two ends of the detection cement block 6 are respectively extended between the symmetrical clamping plates 332 on both sides, and the lower wall of the detection cement block 6 will be placed on the lower limit plate 3311, and the side walls of the detection cement block 6 and the side limit plates 331 on both sides are aligned. When the cement block 6 is in contact with the symmetrical surface, the third motor 3351 starts to drive the third screw rod 335 to rotate, so that the limit sliding block 3332 moves downward, thereby causing the limit plate support arm 3331 to drive the upper limit plate 333 to move downward, and the upper limit plate 333 descends and presses against the upper wall of the cement block 6. At this time, the cement block 6 is fixed by the mobile manipulators 33 on both sides, and the first motor 131 starts again, so that the cement block 6 moves toward the direction of the clamp switching assembly 2 driven by the mobile manipulator 33.

[0058] The flexural strength test of the cement block 6 is first performed. In the initial state, the flexural testing fixture 21 is first located at the upper end of the pressure column 17. In the initial state, the flexural lower pressure plate 215 tends to slide downward under the action of gravity, and the first limit spring 2153 limits the position of the flexural lower pressure plate 215. At this time, the distance between the flexural lower pressure plate 215 and the flexural bottom plate 216 is smaller than the height of the tested cement block 6. As the mobile manipulator 33 approaches Near, the detection cement block 6 and the clamping plate 332 first contact the anti-bending guide bar 2152, and under the push of the detection cement block 6 and the clamping plate 332, the anti-bending guide bar 2152 drives the anti-bending lower pressure plate 215 to rise until the detection cement block 6 slides between the anti-bending lower pressure plate 215 and the anti-bending bottom plate 216. At this time, the upper wall of the detection cement block 6 contacts the upper pressure bar 2151, and the lower wall of the detection cement block 6 contacts the lower pressure bar 2161. After the detection cement block 6 is placed , the upper limit plate 333 moves away from the upper wall of the detection cement block 6 under the control of the third motor 3351, the second motor 313 controls the moving mechanical arms 32 to move away from each other, and at the same time, the conveying motor 3324 controls the clamping conveying roller 3323 at the end to rotate, and the clamping conveying roller 3323 drives the clamping conveyor belt 3325 to move. As the symmetrical moving mechanical arms 32 move away from each other, the clamping conveyor belt 3325 will roll on the side wall of the detection cement block 6, and under the clamping action of the symmetrical clamping conveyor belt 3325, the position of the detection cement block 6 remains unchanged, and the symmetrical side limit plates 331 will move away from the side walls of the detection cement block 6 respectively, but it is necessary to ensure that the two ends of the lower wall of the detection cement block 6 are still overlapped on the lower limit plates 3311 on both sides, and then the clamping plate 332 moves away from the side wall of the detection cement block 6 under the control of the clamping motor 3341, but it is necessary to ensure that the clamping conveyor belt 3325 and the side wall of the detection cement block 6 maintain a small distance, such as Fig.12 Status shown.

[0059] At this time, the main controller 51 controls the hydraulic lifting rod 12 to start, so that the pressure assembly 4 descends, and the hydraulic pressure column 43 moves to the upper wall position close to the anti-bending upper pressure plate 214, and then the hydraulic pressure column 43 starts, and the lower wall of the hydraulic pressure column 43 contacts the upper wall of the anti-bending upper pressure plate 214, and applies pressure to the anti-bending upper pressure plate 214. The pressure applied by the hydraulic pressure column 43 is transmitted to the anti-bending lower pressure plate 215 through the anti-bending upper pressure plate 214 via the anti-bending connecting shaft 2141, and the cement block 6 is detected to be bent under the pressure of the upper pressure strip 2151 and the lower pressure strip 2161. As the hydraulic pressure column 43 applies pressure, the pressure on the upper pressure strip 2151 and the lower pressure strip 2161 are bent. The pressure gradually increases, and the bending force on the test cement block 6 gradually increases until the test cement block 6 reaches the maximum flexural bearing capacity and breaks. At this time, the changes in the pressure applied by the hydraulic pressure column 43 and the maximum flexural pressure value applied to the test cement block 6 will also be recorded by the main controller 51, and a detailed data chart will be displayed to the experimenter on the control panel 5. The pressure value applied by the hydraulic pressure column 43 can be obtained through the pressure detector. The technical principle of the pressure detector and the recording process of the pressure detector detection data by the main controller 51 are well-known existing technologies and will not be described in detail here.

[0060] The detection cement block 6 is broken into two sections after being compressed and damaged. Under normal circumstances, the two sections of the detection cement block 6 will tilt due to the lack of constraints at both ends. However, at this time, the detection cement block 6 that is compressed and damaged into two sections will always remain in a horizontal state under the limitation of the clamping plate 332 and the lower limit plate 3311, ensuring the stability of the position of the detection cement block 6 after being folded and damaged, making it convenient for the mobile manipulator 33 to re-grip the detection cement block 6 that is folded and damaged into two sections. At this time, the clamping motor 3341 controls the symmetrical clamping plates 332 to approach each other, and makes the clamping conveyor belt 3325 re-clamp the side walls of the two sections of the detection cement block 6. At the same time, the clamping conveyor belt 3325, under the control of the conveying motor 3324, moves the detection cement block 6 towards the direction close to the side limit plate 331, so that the side wall of the detection cement block 6 is in contact with the side limit plate 331, and the upper limit plate 333 is lowered again to contact the upper wall of the detection cement block 6.

[0061] The inspection cement block 6 which is broken into two sections is clamped and fixed by the mobile manipulators 33 on both sides respectively. At this time, the first motor 131 is restarted to control the mechanical arm moving frame 31 to move away from the clamp switching component 2, and the two sections of the inspection cement block 6 clamped in the mobile manipulators 33 on both sides are separated from the anti-bending inspection clamp 21. The inspection cement block 6 always remains horizontal under the clamping action of the clamping conveyor belt 3325. After the mobile manipulator 33 moves away from the clamp switching component 2 to a certain distance, the switching rotating motor 25 is started and drives the swing rod 24 to swing, and the switching arc plate 23 is moved in the bearing The upper end of the pressure column 17 rotates, the anti-bending detection fixture 21 leaves the upper end of the pressure column 17, and the anti-compression detection fixture 22 moves to the upper end of the pressure column 17. At this time, the rotating cleaning brush 16 on one side will extend into the anti-bending detection fixture 21, and the cleaning brush motor 161 will start automatically, driving the rotating cleaning brush 16 to rotate, and automatically cleaning the dust particles remaining in the anti-bending detection fixture 21 due to the damage of the cement block 6 being bent, thereby reducing the tedious steps of manual cleaning, and the dust particles swept away by the rotating cleaning brush 16 will fall into the debris collection box 7 below.

[0062] At this time, the mobile robotic arm 32 on one side moves in the direction away from the mobile robotic arm 32 on the other side under the control of the second motor 313, and the first motor 131 is started again to make the robotic arm moving frame 31 move toward the direction of the fixture switching assembly 2, and one side half-section detection cement block 6 will be driven by the mobile robotic arm 33 to be stuck in the pressure-resistant detection fixture 22, and the detection cement block 6 and the clamping plate 332 first contact the pressure-resistant arc guide bar 2251 in the same way, and make the pressure-resistant lower pressure plate 225 rise, and the detection cement block 6 is stuck between the pressure-resistant lower pressure plate 225 and the pressure-resistant bottom plate 226, but at this time the detection cement block 6 is only about half the length, and the center position of the half-section detection cement block 6 is not aligned with the center of the lower wall of the pressure-resistant lower pressure plate 225, so the pressure-resistant lower pressure plate 225 cannot detect the water The mud block 6 undergoes effective compression resistance detection. At this time, the conveying motor 3324 will start, driving the clamping conveyor belt 3325 to move. Under the friction and rolling action of the clamping conveyor belt 3325, the detection cement block 6 will move in the direction away from the side limit plate 331. The clamping conveyor belt 3325 controls the moving distance of the half-section detection cement block 6 to be one-fourth of the length of the complete detection cement block 6, so that the center position of the detection cement block 6 can be roughly aligned with the center of the lower wall of the pressure-resistant lower pressure plate 225, thereby ensuring the accuracy of the compressive strength test results. After the positioning of the detection cement block 6 is completed, the clamping plate 332 and the upper limit plate 333 are separated from the detection cement block 6, and the mobile manipulator 33 is driven by the mobile manipulator arm 32 to move away from the detection cement block 6, and the manipulator arm moving frame 31 is away from the clamp switching assembly 2.

[0063] The compressive strength test process is similar to the flexural strength test process, that is, the hydraulic pressure column 43 applies pressure to the anti-pressure upper platen 224, and the anti-pressure lower platen 225 applies pressure to the test cement block 6 until the pressure applied on the test cement block 6 reaches its maximum compressive bearing capacity, the test cement block 6 will be destroyed, and the compressive strength value of the test cement block 6 will also be recorded by the main controller 51 and displayed on the control panel 5. During this process, the debris generated when the test cement block 6 is broken may splash around, causing harm to the surrounding experimenters, posing a safety hazard. Therefore, when performing the compressive strength test, the winding motor 442 will start to control the winding roller 44 to rotate, and the pulling line 441 will be released from the winding roller. The lower support ring 421 gradually descends with the release of the pulling line 441, so that the folded anti-splash protective cloth cover 42 gradually unfolds and surrounds the compression test fixture 22. Fig.14 In the state shown, the splashing debris generated when the cement block 6 is compressed and damaged is blocked by the anti-splashing protective cloth cover 42 and falls into the debris collection box 7 below.

[0064] After the testing cement block 6 on one side is damaged by pressure, the switching rotating motor 25 is restarted to make the compression testing fixture 22 leave the upper end of the pressure-bearing column 17. During the tilting process of the compression testing fixture 22, the damaged testing cement block 6 remnants clamped in the compression testing fixture 22 will automatically dump into the debris collection box 7 below. The rotating cleaning brush 16 on one side is inserted into the compression testing fixture 22 to clean the compression testing fixture 22. After the compression testing fixture 22 is cleaned, the switching rotating motor 25 is restarted to make the compression testing fixture 22 rotate back to the upper end of the pressure-bearing column 17, and another section of the testing cement block 6 is fixed. The mobile manipulator 33 of block 6 moves to the middle position of the robot arm moving frame 31, and the mobile manipulator 33 on the other side where the test cement block 6 is not fixed moves toward the end of the robot arm moving frame 31. The mobile manipulator 33 controls another section of the test cement block 6 to be clamped into the anti-flexure test fixture 21, and repeats the above-mentioned compressive strength test steps to complete the complete compressive and flexural strength test process of the test cement block 6. The strength test process of the other two test cement blocks 6 can be carried out in the same way. After the test is completed, the experimenter removes the debris collection box 7 and cleans up the cement debris in the debris collection box 7.

[0065] The above is the overall workflow of the present invention, and you can repeat this step next time you use it.

[0066] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0067] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A cement strength testing device, comprising a base frame (1), wherein one side of the base frame (1) is provided with a cement block placement platform (11), characterized in that: A pressure column (17) is provided at the center of the upper wall of the base frame (1), a fixture switching assembly (2) is movably provided above the pressure column (17), a pressure assembly (4) is movably provided above the fixture switching assembly (2), a cement block moving assembly (3) is movably provided above the cement block placement platform (11), a control panel (5) is provided on the edge of one side of the cement block placement platform (11) away from the base frame (1), and a debris collection box (7) is symmetrically movably provided on the upper wall of the base frame (1), wherein the fixture switching assembly (2) comprises an anti-bending detection fixture (21), an anti-compression detection fixture (22), a switching arc plate (23) and a swing rod (24), and the swing rod (2 4) is symmetrically rotatably arranged on the side wall of the pressure-bearing column (17), the switching arc plate (23) is connected between the upper ends of the swing rod (24), the lower wall of the switching arc plate (23) is arranged in contact with the upper end surface of the pressure-bearing column (17), the anti-bending detection fixture (21) and the anti-compression detection fixture (22) are respectively arranged at the two ends of the upper wall of the switching arc plate (23), the pressure-bearing column (17) is provided with a switching rotating motor (25), the output end of the switching rotating motor (25) is connected to the lower end of the swing rod (24), when the swing rod (24) swings, the anti-bending detection fixture (21) and the anti-compression detection fixture (22) are respectively moved to the upper end of the pressure-bearing column (17).

2. A cement strength detection device according to claim 1, characterized in that: The cement block moving assembly (3) comprises a mechanical arm moving frame (31), a mobile mechanical arm (32) and a mobile mechanical hand (33); the mechanical arm moving frame (31) is movably arranged on the upper wall of the cement block placing platform (11); the mobile mechanical arm (32) is slidably arranged on the inner side of the mechanical arm moving frame (31); the number of the mobile mechanical arms (32) is two; the mobile mechanical hands (33) are respectively arranged at one end of the mobile mechanical arms (32) close to the clamp switching assembly (2); the mobile mechanical hands (33) comprise a side limit plate (331), a clamping plate (332), an upper limit plate (333), a double thread The screw rod (334) and the third screw rod (335) are fixedly arranged at one end of the mobile mechanical arm (32) close to the clamp switching assembly (2), the clamping plates (332) are symmetrically opened and closed on the opposite side walls of the two side limit plates (331), the upper limit plate (333) is slidably arranged above the clamping plates (332), the double-threaded screw rod (334) is respectively arranged on the opposite side walls of the two side limit plates (331), the third screw rod (335) is arranged above the double-threaded screw rod (334), and the threads at both ends of the side wall of the double-threaded screw rod (334) are in opposite directions.

3. A cement strength detection device according to claim 2, characterized in that: The symmetrical side walls opposite to each other of the clamping plate (332) are respectively provided with clamping conveying rollers (3323) in an array, a conveying motor (3324) is provided at the lower end of one end of the clamping conveying roller (3323), an output end of the conveying motor (3324) is connected to the lower end of the clamping conveying roller (3323), and a clamping conveying belt (3325) is provided around the outer wall of the clamping conveying roller (3323).

4. A cement strength detection device according to claim 3, characterized in that: A lower limit plate (3311) is provided at the lower end of the side limit plate (331), the clamping plate (332) is provided above the lower limit plate (3311), a clamping arm (3321) is provided at one end of the clamping plate (332) close to the side limit plate (331), a clamping sliding block (3322) is provided at the end of the clamping arm (3321), the clamping sliding block (3322) is symmetrically sleeved on the side wall of the double-threaded screw rod (334), the clamping sliding block (3322) is respectively threadedly connected to the side walls of the double-threaded screw rod (334) at both ends in opposite thread directions, and a clamping motor (3321) is provided at the end of the double-threaded screw rod (334). 341), the output end of the clamping motor (3341) is connected to the end of the double-threaded lead screw (334), the upper wall of the upper limit plate (333) is provided with a limit plate support arm (3331), the end of the limit plate support arm (3331) is provided with a limit sliding block (3332), the limit sliding block (3332) is sleeved on the side wall of the third lead screw (335), the limit sliding block (3332) is threadedly connected to the third lead screw (335), the upper end of the third lead screw (335) is provided with a third motor (3351), and the output end of the third motor (3351) is connected to the end of the third lead screw (335).

5. A cement strength detection device according to claim 4, characterized in that: A screw rod connection block (311) is provided at the center of the upper end of the mechanical arm moving frame (31), a second screw rod (312) is symmetrically connected between the screw rod connection block (311) and the inner side wall of the mechanical arm moving frame (31), the upper ends of the mobile mechanical arms (32) are respectively sleeved on the side walls of the symmetrical second screw rods (312), the upper ends of the mobile mechanical arms (32) are respectively threadedly connected to the second screw rods (312), a second motor (313) is symmetrically provided in the screw rod connection block (311), and the output ends of the second motors (313) are respectively connected to the ends of the symmetrical second screw rods (312).

6. A cement strength detection device according to claim 5, characterized in that: The anti-bending detection fixture (21) comprises an anti-bending upper fixture seat (211), an anti-bending lower fixture seat (212), an anti-bending connecting arm (213), an anti-bending upper pressure plate (214), an anti-bending lower pressure plate (215) and an anti-bending bottom plate (216); the anti-bending lower fixture seat (212) is arranged at one end of the switching arc plate (23); the anti-bending upper fixture seat (211) is arranged above the anti-bending lower fixture seat (212); the anti-bending connecting arm (213) is connected between the anti-bending upper fixture seat (211) and the anti-bending lower fixture seat (212); the anti-bending upper pressure plate (214) is arranged above the anti-bending upper fixture seat (211) and is movable up and down; an anti-bending connecting shaft (2141) is provided at the center of the lower wall of the anti-bending upper pressure plate (214); the anti-bending connecting shaft (2141) penetrates The anti-bending upper clamp seat (211) is arranged at the center of the upper wall, the anti-bending lower pressure plate (215) is arranged at the lower end of the anti-bending connecting shaft (2141), an upper pressure strip (2151) is arranged at the center of the lower wall of the anti-bending lower pressure plate (215), an anti-bending arc guide strip (2152) is arranged at one end of the side wall of the anti-bending lower pressure plate (215) close to the cement block placement platform (11), the lower end of the side wall of the upper pressure strip (2151) and the lower end of the anti-bending arc guide strip (2152) are located in the same horizontal plane, the anti-bending bottom plate (216) is arranged on the upper wall of the anti-bending lower clamp seat (212), the upper wall of the anti-bending bottom plate (216) is symmetrically provided with lower pressure strips (2161), and a first limit spring (2153) is connected between the anti-bending lower pressure plate (215) and the anti-bending upper clamp seat (211).

7. A cement strength detection device according to claim 6, characterized in that: The anti-compression detection fixture (22) comprises an anti-compression upper fixture seat (221), an anti-compression lower fixture seat (222), an anti-compression connecting arm (223), an anti-compression upper pressure plate (224), an anti-compression connecting shaft (2241), an anti-compression lower pressure plate (225), a second limit spring (2252) and an anti-compression bottom plate (226); the anti-compression lower fixture seat (222) is arranged at the other end of the switching arc plate (23); the anti-compression upper fixture seat (221), the anti-compression lower fixture seat (222), the anti-compression connecting arm (223), the anti-compression upper pressure plate (224), the anti-compression connecting shaft (2241), the anti-compression lower pressure plate (225), the second limit spring (2252) and the anti-compression bottom plate (226); The structural relationship between the positioning spring (2252) and the anti-compression bottom plate (226) is respectively the same as the structural relationship between the anti-bending upper clamp seat (211), the anti-bending lower clamp seat (212), the anti-bending connecting arm (213), the anti-bending upper pressure plate (214), the anti-bending connecting shaft (2141), the anti-bending lower pressure plate (215), the first limiting spring (2153) and the anti-bending bottom plate (216); an anti-compression arc guide bar (2251) is provided at one end of the side wall of the anti-compression lower pressure plate (225) close to the cement block placement platform (11); and the lower end of the anti-compression arc guide bar (2251) and the lower wall of the anti-compression lower pressure plate (225) are located on the same horizontal plane; When the anti-bending detection fixture (21) and the anti-compression detection fixture (22) are respectively located at the upper end of the pressure-bearing column (17), the upper wall of the lower limit plate (3311) is respectively located at the same horizontal plane as the upper end of the side wall of the lower pressure strip (2161) and the upper wall of the anti-compression bottom plate (226).

8. A cement strength detection device according to claim 7, characterized in that: The pressure assembly (4) comprises a lifting cross bar (41), an anti-splash protection cloth cover (42), a hydraulic pressure column (43) and a winding roller (44); the lifting cross bar (41) is movably arranged above the clamp switching assembly (2); an upper support plate (411) is arranged at the center of the lower wall of the lifting cross bar (41); the anti-splash protection cloth cover (42) is movably arranged on the lower wall of the upper support plate (411); the hydraulic pressure column (43) is arranged at the center of the lower wall of the upper support plate (411); the hydraulic pressure column (43) is arranged inside the anti-splash protection cloth cover (42). The wire winding roller (44) is symmetrically arranged on both sides of the splash-proof protective cloth cover (42), the wire winding roller (44) is arranged on the lower wall of the lifting cross bar (41), the lower end of the splash-proof protective cloth cover (42) is provided with a lower support ring (421), the side wall of the wire winding roller (44) is wound with a pulling wire (441), the ends of the pulling wire (441) are respectively fixedly arranged at the two ends of the lower support ring (421), the end of the wire winding roller (44) is provided with a wire winding motor (442), and the output end of the wire winding motor (442) is connected to the end of the wire winding roller (44).

9. A cement strength detection device according to claim 8, characterized in that: The upper wall of the base frame (1) is symmetrically provided with a hydraulic lifting rod (12), the output end of the hydraulic lifting rod (12) is connected to the lower wall of the lifting cross bar (41), the upper wall of the cement block placement platform (11) is symmetrically provided with a first screw rod (13) and a first slide rod (14), the lower end of the mechanical arm moving frame (31) is respectively sleeved on the side walls of the first screw rod (13) and the first slide rod (14), the lower end of the mechanical arm moving frame (31) is threadedly connected to the first screw rod (13), the end of the first screw rod (13) is provided with a first motor (131), the output end of the first motor (131) is connected to the end of the first screw rod (13), the upper wall of the cement block placement platform (11) is close to the clamp switching assembly ( 2) is symmetrically provided with cement block racks (15), the upper wall array of the cement block racks (15) is provided with detection cement blocks (6), the upper wall of the cement block racks (15) and the upper wall of the lower limit plate (3311) are located in the same horizontal plane, the cement block placement table (11) is symmetrically provided with a rotating cleaning brush (16) on the side wall close to the fixture switching component (2), the rotating shaft end of the rotating cleaning brush (16) is provided with a cleaning brush motor (161), the output end of the cleaning brush motor (161) is connected to the rotating shaft end of the rotating cleaning brush (16), and when the swing rod (24) swings, the rotating cleaning brush (16) is respectively engaged in the anti-bending detection fixture (21) and the anti-compression detection fixture (22).

10. A cement strength detection device according to claim 9, characterized in that: A main controller (51) is provided below the cement block placement platform (11); the hydraulic lifting rod (12), the first motor (131), the cleaning brush motor (161), the switching rotation motor (25), the second motor (313), the conveying motor (3324), the clamping motor (3341), the third motor (3351), the hydraulic pressure column (43), the winding motor (442) and the control panel (5) are respectively electrically connected to the main controller (51).

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