Automatic detection system for folding and compression resistance of test body

Abstract

The utility model relates to cement performance detection technical field, concretely relates to a kind of test body bending and compression resistance automatic detection system.A kind of test body bending and compression resistance automatic detection system, comprising: test body access device, including support assembly, support assembly is suitable for placing the test body to be detected;Bending detection device, bending detection device has bending detection position, with test body access device corresponding arrangement, support assembly is driven to move towards bending detection device, bending detection device is suitable for carrying out pressure break to the test body to be detected in bending detection position, support assembly is driven to move again half test body from bending detection position.The utility model provides a kind of test body bending and compression resistance automatic detection system, to solve the problem that traditional mode carries out bending detection test before and after, personnel places the test body to be detected or takes out bending station, there is security risk, the whole test process is slow, increases personnel workload, and the problem of low efficiency.

Description

Technical Field

[0001] This utility model relates to the field of cement performance testing technology, specifically to an automatic testing system for the flexural and compressive strength of test specimens. Background Technology

[0002] Cement mortar is a type of viscous mortar made by mixing cement, water, and sand in a certain proportion. The purpose of cement mortar strength testing is to evaluate the quality and performance of cement and to determine the suitability and safety of the material in construction and engineering applications. The cement strength value is obtained by conducting flexural and compressive tests on cement mortar specimens using a flexural and compressive strength tester.

[0003] The strength testing of cement mortar is specified by GB / T17671-2021 Cement Mortar Strength Test Method (ISO Method). In the traditional method of flexural strength testing, personnel place or remove the test specimens to be tested at the flexural strength station, which poses a safety hazard. The entire testing process is slow, increases the workload of personnel, and has low efficiency. Utility Model Content

[0004] In view of this, the present invention provides an automatic testing system for the flexural and compressive strength of test specimens, in order to solve the problems of safety hazards, slow testing speed, increased workload and low efficiency caused by personnel placing or removing the test specimens before and after the flexural strength test in the traditional method.

[0005] In a first aspect, this utility model provides an automatic testing system for the flexural and compressive strength of test specimens, comprising:

[0006] A test specimen loading and unloading device, the test specimen loading and unloading device including a support assembly, the support assembly being adapted to place a test specimen to be tested;

[0007] A flexural strength testing device is provided corresponding to the specimen entry and exit device. The flexural strength testing device has a flexural strength testing position. The support component is driven to move toward the flexural strength testing device to move the specimen to be tested into the flexural strength testing position. The flexural strength testing device is adapted to break the specimen to be tested at the flexural strength testing position. After being broken, the specimen to be tested becomes two half specimens. The support component is then driven to move the half specimens out of the flexural strength testing position.

[0008] The automated method enables the transport of test subjects before and after the flexural strength test, eliminating the need for personnel to manually place or remove the test subjects from the flexural strength testing position. The automated transport of test subjects ensures the safety of the operation process, reduces the workload of personnel, and improves the efficiency of the test.

[0009] In one optional embodiment, the flexural strength testing device includes a flexural pressure block and a flexural bearing block, with a flexural strength testing position formed between the flexural pressure block and the flexural bearing block. The flexural bearing block moves relative to the support component at the flexural strength testing position to separate the test object from the support component. The relative movement of the flexural pressure block and the flexural bearing block is used to break the test object.

[0010] The specimen entry and exit device includes a base, which is connected to a support assembly. The support assembly includes a support plate, one end of which is provided with at least two spaced slots. The flexural bearing block includes at least two spaced flexural extensions, with one slot corresponding to one flexural extension. The flexural bearing block is driven to move the flexural extension into or out of the slot.

[0011] In one optional embodiment, the support assembly further includes a first positioning block and a second positioning block. The support plate includes a first side plate, a second side plate, and a main plate. The first side plate and the second side plate are disposed on the same side and are respectively located at the same end of the main plate. A first slot is formed between the first side plate and the main plate, and a second slot is formed between the second side plate and the main plate. Two corresponding first positioning blocks are provided on the first side plate, and two corresponding second positioning blocks are provided on the second side plate. The first positioning blocks and the second positioning blocks are used to position the test object.

[0012] In one optional embodiment, the specimen entry and exit device further includes a power component, which includes a drive member, a slider, and a slide rail. The drive member is fixedly mounted on the base, the slide rail is mounted on the base, the slider is fixedly connected to the support plate, the slider is adapted to the slide rail, and the drive member is adapted to drive the slider to move along the slide rail.

[0013] In one optional embodiment, the support assembly further includes a first bracket, which is fixedly connected to a first side plate. The first bracket includes two correspondingly arranged bent portions, each of which is provided with a first position sensor. The space between the two first position sensors is suitable for placing the test subject.

[0014] In one optional embodiment, the support assembly further includes a first position detector and a second position detector, which are arranged along the length direction of the base. A first position detection piece is provided on the side of the support plate, and the first and second position detectors are used to sense the position of the first position detection piece.

[0015] In an alternative embodiment, the device further includes a specimen calibration device disposed downstream of the flexural strength testing device, the specimen calibration device including a calibration plate adapted to place a half specimen.

[0016] In one optional embodiment, the specimen correction device includes a supporting base plate and a bearing rod. The bearing rod is provided between the supporting base plate and the correction plate. The correction plate is provided with at least one set of correction blocks. The set of correction blocks includes two vertically arranged correction blocks and one horizontal correction block. The two vertical correction blocks and the one horizontal correction block form a "U"-shaped receiving space to accommodate the half specimen.

[0017] In one alternative embodiment, the correction plate is inclined relative to the horizontal direction towards the bottom of the "U"-shaped receiving space, and / or, at least the lateral correction block is an elastic structure or has an elastic layer on its surface.

[0018] In one alternative embodiment, a compression testing device is also included, which is located downstream of the specimen calibration device. The compression testing device includes a lifting platform adapted to hold a half-section specimen.

[0019] In one optional embodiment, the compressive strength testing device further includes a first column and an upper pressure plate, wherein the upper pressure plate is correspondingly arranged with the lifting support platform and is connected to the first column.

[0020] In one optional embodiment, the device further includes a power housing and a robotic arm. The power housing includes a housing plate, on which the specimen entry / exit device, bending strength detection device, specimen correction device, and compression strength detection device are respectively arranged. A controller is provided inside the housing, and the controller is connected to the drive unit, the robotic arm, the first position sensor, the first position detector, and the second position detector. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of an automatic testing system for the flexural and compressive strength of a test specimen according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the specimen entry / exit device and the flexural strength testing device according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram showing the cooperation of the base, support assembly, and power assembly in an embodiment of this utility model;

[0025] Figure 4 This is a schematic diagram from another perspective showing the cooperation of the base, support assembly, and power assembly in an embodiment of the present utility model.

[0026] Figure 5 This is a schematic diagram of the support component according to an embodiment of the present utility model;

[0027] Figure 6 This is a schematic diagram of the first bracket and the first position sensor according to an embodiment of the present utility model;

[0028] Figure 7 This is a schematic diagram of the support plate according to an embodiment of the present utility model;

[0029] Figure 8 This is a schematic diagram of the flexural strength testing device according to an embodiment of the present invention;

[0030] Figure 9 This is a schematic diagram from another perspective of the flexural strength testing device according to an embodiment of the present invention;

[0031] Figure 10 This is a schematic diagram of two half-section specimens placed in the specimen calibration device according to an embodiment of the present invention.

[0032] Figure 11 This is a schematic diagram of a half-section of a test specimen placed in the test specimen calibration device according to an embodiment of the present invention.

[0033] Figure 12 This is a schematic diagram of the compressive strength testing device according to an embodiment of the present invention;

[0034] Figure 13 This is a schematic diagram of the compressive strength testing device according to an embodiment of the present invention from another perspective;

[0035] Figure 14 This is a schematic diagram showing the connection between the top plate, power component, and fixing plate in an embodiment of the present invention.

[0036] Explanation of reference numerals in the attached drawings: 1. Power housing; 2. Specimen entry / exit device; 201. Base; 20101. Top plate; 202. Power assembly; 20201. Drive component; 202011. Moving part; 20202. First support; 20203. Second support; 20204. Slider; 20205. Slide rail; 20206. Limit adjustment component; 203. Support assembly; 20301. Support plate; 203011. Main plate; 203012. First side plate; 203013. Second side plate; 203014. First opening 203015, Second empty slot; 203016, Connecting section; 20302, Height adjustment component; 20303, Height adjustment plate; 20304, Fixing plate; 20305, First bracket; 203051, Bending part; 203052, Horizontal part; 20306, Second bracket; 20307, ​​First position sensor; 20308, Second position sensor; 20309, First position detection piece; 20310, First position detector; 20311, First adjusting seat; 20312, Second position detector; 203 13. Second adjusting seat; 20314. First positioning block; 20315. Second positioning block; 20316. Third positioning block; 3. Bending resistance testing device; 301. Fixed seat; 302. Second column; 303. Bending resistance pressure block; 30301. Pressure application part; 304. Protective cover; 305. Lifting column; 306. Bending resistance bearing block; 30601. Bending resistance extension part; 307. Upper limit sensor; 308. Lower limit sensor; 309. Second position detection piece; 4. Specimen correction device; 401. Support base plate; 402. Correction plate ; 40201, Detection hole; 403, Bearing rod; 404, Third position sensor; 405, Calibration block group; 40501, Vertical calibration block; 40502, Horizontal calibration block; 5, Compression testing device; 501, Lifting bearing platform; 502, Upper pressure fixture; 503, First column; 504, Third position detection piece; 505, Guide cover; 506, Specimen sensor; 507, Third position detector; 508, Second fixed seat; 509, Waste outlet; 510, Fourth position detector; 6, Test specimen to be tested; 7, Half specimen. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0038] The following is combined with Figures 1 to 14The following describes embodiments of the present invention.

[0039] According to an embodiment of the present invention, an automatic testing system for the flexural and compressive strength of test specimens is provided, comprising:

[0040] The test subject entry and exit device 2 includes a support component 203, on which the test subject 6 to be tested is placed;

[0041] The flexural strength testing device 3 is provided in correspondence with the specimen entry and exit device 2. The flexural strength testing device 3 has a flexural strength testing position. The support component 203 is driven to move the specimen 6 to be tested into the flexural strength testing position. The flexural strength testing device 3 is adapted to break the specimen 6 to be tested at the flexural strength testing position. After being broken, the specimen 6 becomes two half specimens 7. The support component 203 is driven to move the half specimens 7 out of the flexural strength testing position.

[0042] The automated method enables the transport of the test specimen 6 before and after the flexural strength test, eliminating the need for manual placement and removal of the specimen from the testing position. This automated transport ensures operational safety, reduces workload, and improves testing efficiency. In this embodiment, the test specimen 6 is a cement mortar specimen.

[0043] In one embodiment, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 8 As shown, the flexural strength testing device 3 includes a flexural pressure block 303 and a flexural bearing block 306. A flexural strength testing position is formed between the flexural pressure block 303 and the flexural bearing block 306. The flexural bearing block 306 moves relative to the support assembly 203 at the flexural strength testing position to separate the test object 6 from the support assembly 203. The relative movement of the flexural pressure block 303 and the flexural bearing block 306 is used to break the test object 6. The test object 6 is separated from the support assembly 203 by the flexural bearing block 306, and the test object 6 is supported by the flexural bearing block 306. The relative movement of the flexural pressure block 303 and the flexural bearing block 306 is used to break the test object 6 to perform a flexural strength test.

[0044] In one embodiment, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 and Figure 8As shown, the specimen entry / exit device 2 includes a base 201, which is connected to a support assembly 203. The support assembly 203 includes a support plate 20301, one end of which has at least two spaced-apart slots. The flexural pressure-bearing block 306 includes at least two spaced-apart flexural extensions 30601, with one slot corresponding to one flexural extension 30601. The flexural pressure-bearing block 306 is driven to move the flexural extensions 30601 into or out of the slots. By extending the flexural extensions 30601 into the slots, the at least two flexural extensions 30601 cause the test specimen 6 to separate from the support plate 20301, and then the flexural pressure-bearing block 306 moves the test specimen 6 toward the flexural pressure-bearing block 303. When the test specimen 6 is broken by the flexural pressure block 303 and the flexural bearing block 306, the test specimen 6 becomes two halves 7. The flexural bearing block 306 then moves the halves 7 away from the flexural pressure block 303 until the halves 7 fall onto the support plate 20301. The support plate 20301 then moves the halves 7 out of the flexural strength testing device 3. It should be noted that in this embodiment, there are two halves 7.

[0045] In this embodiment, as Figure 8 , Figure 9 As shown, the space between the flexural pressure block 303 and the flexural bearing block 306 is the flexural strength testing position. The flexural strength testing device 3 includes a lifting column 305 and a fixed base 301. The fixed base 301 is sleeved on the outer periphery of the lifting column 305. The top of the lifting column 305 is fixedly connected to the bottom of the flexural bearing block 306, and the lifting column 305 drives the flexural bearing block 306 to rise or fall. Figure 8 , Figure 9 As shown, the fixing base 301 is also provided with two second columns 302, and a space for accommodating the bending and bearing block 306 is formed between the two second columns 302. Figure 8 , Figure 9 As shown, the tops of the two second columns 302 are provided with anti-bending pressure blocks 303, and the anti-bending pressure blocks 303 are fixedly connected to the second columns 302 to maintain a static position. Figure 8 As shown, the bending resistance and pressure-bearing block 306 has two bending resistance extensions 30601, and the two bending resistance extensions 30601 are spaced apart. The pressure-applying part 30301 of the bending resistance and pressure-applying block 303 is located between the two bending resistance extensions 30601, and the pressure-applying part 30301 is located in the middle position between the two bending resistance extensions 30601. The pressure-applying part 30301 applies pressure toward the test object 6 to break the test object 6 from the middle position.

[0046] In this embodiment, as Figure 8 , Figure 9As shown, a lower limit sensor 308 and an upper limit sensor 307 are sequentially arranged along the height direction on a second column 302, with the upper limit sensor 307 positioned higher than the lower limit sensor 308. A protective cover 304 with an opening is fitted around the outer periphery of the lifting column 305. The opening of the protective cover 304 facilitates the entry and exit of the test object 6 and prevents debris generated by the test object 6 during the test from splashing everywhere. A second position detection piece 309 is provided on the outer wall of the protective cover 304. The position of the second position detection piece 309 is detected by the upper limit sensor 307 or the lower limit sensor 308 to determine the position of the flexural extension 30601 of the flexural bearing block 306. It should be noted that a first pressure sensor is provided at the bottom of the lifting column 305. The first pressure sensor detects the pressure change value applied by the lifting column 305 to record the flexural strength value of the test object 6. When the lower limit sensor 308 detects the second position detection piece 309, the top surface of the lifting column 305 is at its lowest position, and the anti-bending extension part 30601 has not yet extended into the empty slot. After the test object 6 enters the anti-bending detection position, the lifting column 305 rises, causing the anti-bending extension part 30601 to extend into the empty slot. The test object 6 is supported by the anti-bending pressure block 306. The anti-bending pressure block 303 remains stationary, and the anti-bending pressure block 306 rises until the test object 6 is broken. The lifting column 305 descends to place the half-section specimen 7 on the support plate. The bending extension 30601 leaves the empty slot and is located below the support plate 20301. It stops when the lower limit sensor 308 senses the second position detection piece 309. The upper limit sensor 307 is used to prevent the second position detection piece 309 from rising excessively. Under normal detection conditions, the height of the second position detection piece 309 will not exceed the upper limit sensor 307. If it does, the lifting column 305 stops rising.

[0047] In one embodiment, such as Figure 4 , Figure 5 and Figure 7As shown, the support assembly 203 further includes a first positioning block 20314 and a second positioning block 20315. The support plate 20301 includes a first side plate portion 203012, a second side plate portion 203013, and a main plate portion 203011. The first side plate portion 203012 and the second side plate portion 203013 are disposed on the same side and are located at the same end of the main plate portion 203011. The first side plate portion 203012 and the second side plate portion 203013 are respectively connected by a connecting section 20301. The test object 6 is connected to the main board 203011. A first slot 203014 is formed between the first side plate 203012 and the main board 203011, and a second slot 203015 is formed between the second side plate 203013 and the main board 203011. The first side plate 203012 is provided with two corresponding first positioning blocks 20314, and the second side plate 203013 is provided with two corresponding second positioning blocks 20315. The first positioning blocks 20314 and the second positioning blocks 20315 are used to position the test object 6. The positioning of the test object 6 is achieved by the two corresponding first positioning blocks 20314 and the two corresponding second positioning blocks 20315. It should be noted that the test object 6 in this embodiment is rectangular, and one flexural extension portion 30601 is correspondingly arranged with the first slot 203014. The width of the flexural extension portion 30601 is smaller than the width of the first slot 203014 to facilitate insertion into the first slot 203014. The other flexural extension portion 30601 is correspondingly arranged with the second slot 203015. The width of the flexural extension portion 30601 is smaller than the width of the second slot 203015 to facilitate insertion into the second slot 203015. Figure 5 As shown, a third positioning block 20316 is also provided on the second side plate 203013. The length direction of the third positioning block 20316 is perpendicular to the length direction of the second positioning block 20315. The two second positioning blocks 20315 and the third positioning block 20316 cooperate to form a "U" shaped receiving space to position and limit the test object 6 from three directions. The upper part of the first positioning block 20314, the second positioning block 20315 and the third positioning block 20316 is inclined to facilitate the sliding of the test object 6 into it.

[0048] In one embodiment, such as Figure 3 , Figure 4 , Figure 14As shown, the specimen entry / exit device 2 also includes a power assembly 202. The power assembly 202 includes a drive component 20201, a slider 20204, and a slide rail 20205. The drive component 20201 is fixedly mounted on the base 201, and the slide rail 20205 is mounted on the top plate 20101 of the base 201. The slider 20204 is fixedly connected to the support assembly 203, and the slider 20204 is adapted to the slide rail 20205. The drive component 20201 is adapted to drive the slider 20204 to move along the slide rail 20205. Specifically, the drive component 20201 is a pneumatic rod, and both ends of the pneumatic rod are fixed to the top plate 20101 of the base 201 via a first support 20202. Figure 14 As shown, the moving parts 202011 of the slider 20204 and the drive member 20201 are respectively connected to the support assembly 203 so that the drive member 20201 drives the support assembly 203 to move along the slide rail 20205.

[0049] In this embodiment, such as 3, Figure 4 and Figure 14 As shown, the support assembly 203 also includes a fixed plate 20304 and a height adjusting plate 20303 arranged along the height direction. The bottom surface of the fixed plate 20304 is connected to the moving part 202011 and the slider 20204 of the drive component 20201 respectively via fasteners. The top surface of the height adjusting plate 20303 is fitted to the bottom surface of the support plate 20301 via fasteners, and the end of the support plate 20301 facing away from the first side plate 203012 is fixedly connected to the height adjusting plate 20303. Specifically, the fasteners are bolts. Figure 3 and Figure 4 As shown, several height adjusting members 20302 are provided between the fixed plate 20304 and the height adjusting plate 20303. By rotating the height adjusting members 20302, the fixed plate 20304 is kept stationary, the height of the height adjusting plate 20303 is adjusted, and thus the height of the support plate 20301 is adjusted. Figure 3 , Figure 4 and Figure 14 As shown, the slide rail 20205 is fixed to the top plate 20101 of the base 201. A second support 20203 is provided at each end of the slide rail 20205, which fixes the slide rail 20205. Each second support 20203 is provided with a limiting adjustment component 20206, which restricts the movement of the fixing plate 20304 between the two second supports 20203. The limiting adjustment component 20206 can be adjusted by rotation. Specifically, the limiting adjustment component 20206 is a bolt.

[0050] In one embodiment, such as Figure 4 , Figure 5 and Figure 6As shown, the support assembly 203 also includes a first bracket 20305, which is fixedly connected to the first side plate portion 203012. The first bracket 20305 includes two correspondingly arranged bent portions 203051, each bent portion 203051 being provided with a first position sensor 20307. The space between the two first position sensors 20307 is suitable for placing the test object 6 to be inspected. Figure 6 As shown, the first bracket 20305 also includes a horizontal portion 203052, and the two bent portions 203051 are connected by the horizontal portion 203052. A first position sensor 20307 is provided to sense whether a test object 6 is placed on the first side plate portion 203012. It should be noted that the horizontal portion 203052 and the bottom of the first side plate portion 203012 are fixedly connected by fasteners. Specifically, the fasteners are bolts.

[0051] In this embodiment, as Figure 4 , Figure 5 and Figure 6 As shown, the support assembly 203 also includes a second bracket 20306, which is fixedly connected to the second side plate portion 203013. The second bracket 20306 includes two correspondingly arranged bent portions 203051, each bent portion 203051 being provided with a second position sensor 20308. The space between the two second position sensors 20308 is suitable for placing the test object 6 to be inspected. Figure 6 As shown, the second bracket 20306 also includes a horizontal portion 203052. The two bent portions 203051 are connected by the horizontal portion 203052. A second position sensor 20308 is provided to sense whether the test object 6 is placed on the second side plate portion 203013. The first bracket 20305 and the second bracket 20306 are exactly the same size. The first position sensor 20307 and the second position sensor 20308 work together to comprehensively determine whether the position of the test object 6 is correct. It should be noted that the horizontal portion 203052 and the bottom of the second side plate portion 203013 are fixedly connected by fasteners. Specifically, the fasteners are bolts.

[0052] In this embodiment, as Figure 2 , Figure 4As shown, the support assembly 203 also includes a first position detector 20310 and a second position detector 20312. The first position detector 20310 and the second position detector 20312 are arranged along the length direction of the base 201. A first position detection piece 20309 is provided on the side of the support plate 20301. The first position detector 20310 and the second position detector 20312 are used to sense the position of the first position detection piece 20309. To fix the first position detector 20310 and the second position detector 20312, a first adjustment seat 20311 and a second adjustment seat 20313 are also fixed to the top plate 20101 of the base 201. The first position detector 20310 and the first adjustment seat 20311 are correspondingly arranged and slidably connected, and the two are connected by magnetic attraction, snap-fit, or other means (this application does not make specific limitations). The second position detector 20312 and the second adjustment seat 20313 are correspondingly arranged and slidably connected, and the two are connected by magnetic attraction, snap-fit, or other means (this application does not make specific limitations). It should be noted that both the first position detector 20310 and the second position detector 20312 are provided with a "U"-shaped notch. When the first position detection piece 20309 is located within the "U"-shaped notch, either the first position detector 20310 or the second position detector 20312 will detect the position of the first position detection piece 20309. Furthermore, when the first position detection piece 20309 is located within the first detector, the sample loading / unloading device 2 is in the loading position; when the second position detection piece 309 is located within the second detector, the sample loading / unloading device 2 is in the flexural strength detection position.

[0053] In one embodiment, such as Figure 1 , Figure 10 and Figure 11 As shown, the device also includes a specimen correction device 4, which is located downstream of the flexural strength testing device 3. The specimen correction device 4 includes a correction plate 402, on which a half-section specimen 7 is placed. By placing the half-section specimen 7 on the correction plate 402, the radius of the specimen is corrected by the correction plate 402, preparing it for the next test. It should be noted that in this embodiment, "downstream" refers to the direction of movement of the test specimen 6 or the half-section specimen 7. The specimen correction device 4 is located downstream of the flexural strength testing device 3, meaning that the test specimen 6 is broken into a half-section specimen 7 by the flexural strength testing device 3 before reaching the specimen correction device 4.

[0054] In one embodiment, such as Figure 1 , Figure 10 and Figure 11As shown, the specimen correction device 4 includes a supporting base plate 401 and a bearing rod 403. The bearing rod 403 is provided between the supporting base plate 401 and the correction plate 402. The correction plate 402 is provided with at least one set of correction block groups 405. The correction block group 405 includes two correspondingly arranged vertical correction blocks 40501 and one horizontal correction block 40502. The two vertical correction blocks 40501 and one horizontal correction block 40502 form a "U"-shaped receiving space to accommodate half of the specimen 7. Figure 10 , Figure 11 As shown, there are two sets of correction block groups 405. Each set of correction block groups 405 corresponds to a half-section specimen 7 and is supported by a bearing rod 403 on the correction plate 402.

[0055] In one embodiment, such as Figure 1 , Figure 10 and Figure 11 As shown, the correction plate 402 is inclined relative to the bottom of the "U"-shaped receiving space, and the transverse correction block 40502 is an elastic structure or has an elastic layer on its surface. The correction plate 402 is inclined relative to the bottom of the "U"-shaped receiving space to utilize gravity, allowing the half-substance 7 to slowly fall into the "U"-shaped space formed by the correction block assembly 405, and also facilitating correction. To prevent rigid collision between the half-substance 7 and the correction block assembly 405, the correction block assembly 405 is made of elastic or flexible soft blocks, or the surface of the transverse correction block 4002 has an elastic layer. To facilitate detection of the presence of the half-substance 7, such as... Figure 10 , Figure 11 As shown, the calibration plate 402 is provided with a detection hole 40201, and the support base plate 401 is provided with a third position sensor 404. The third position sensor 404 sends a signal through the detection hole 40201 to sense whether a half specimen 7 is placed on the calibration plate 402. One third position sensor 404 corresponds to one detection hole 40201, and one detection hole 40201 corresponds to a set of calibration block groups 405.

[0056] In one embodiment, such as Figure 1 , Figure 12 , Figure 13 As shown, it also includes a compression testing device 5, which is located downstream of the specimen correction device 4. The compression testing device 5 includes a lifting support platform 501, which is adapted to place the half-section specimen 7. The half-section specimen 7 is placed on the lifting support platform 501 to provide support.

[0057] In one embodiment, such as Figure 1 , Figure 12 , Figure 13As shown, the compressive strength testing device 5 also includes a first column 503 and an upper pressure plate 502. The upper pressure plate 502 is correspondingly arranged with the lifting support platform 501 and is connected to the first column 503. The upper pressure plate 502 is fixedly connected to the first column 503. The upper pressure plate 502 and the lifting support platform 501 work together (the upper pressure plate 502 remains stationary while the lifting support platform 501 moves) to perform a compressive strength test on the half-section specimen 7. A second pressure sensor is provided at the bottom of the lifting support platform 501 to sense the pressure change value applied by the lifting support platform 501 and record the compressive strength value of the half-section specimen 7. Figure 12 , Figure 13 As shown, a guide cover 505 is provided on the outer periphery of the lifting platform 501. A specimen sensor 506 is respectively provided on the inner side wall of the guide cover 505 to detect whether the half-specimen 7 is placed on the lifting platform 501. Figure 13 As shown, the guide cover 505 also includes a waste outlet 509 to discharge the crushed pieces outside after the half-section specimen 7 has undergone the compression test. A third position detection plate 504 is provided on the outer wall of the guide cover 505. A third position detector 507 and a fourth position detector 510 are respectively installed on two corresponding first columns 503. The third position detector 507 and the fourth position detector 510 jointly detect the third position detection plate 504. It should be noted that the third position detection plate 504 is in the initial position when it is between the third position detector 507 and the fourth position detector 510. After the half-section specimen 7 is placed, the lifting platform 501 drives the half-section specimen 7 to rise. The upper pressure fixture 502 and the lifting platform 501 cooperate to conduct the compression test on the half-section specimen 7. After the test is completed, the lifting platform 501 returns to the initial position.

[0058] In one embodiment, such as Figure 1As shown, it also includes a power housing 1 and a robotic arm. The power housing 1 includes a housing plate, on which the specimen entry / exit device 2, the bending strength detection device 3, the specimen correction device 4, and the compression strength detection device 5 are respectively arranged. The power housing 1 is equipped with a controller, which is connected to the drive component 20201, the robotic arm, the first position sensor 20307, ​​the first position detector 20310, and the second position detector 20312. The robotic arm is equipped with a camera. The robotic arm realizes the placement of the test specimen 6, the grasping and movement of the half specimen 7, and the power housing 1 provides power and control. It should be noted that the support base plate 401 and the correction plate 402 form an angle with the housing plate, and the support base plate 401 and the correction plate 402 are arranged parallel to each other. In addition, the controller is connected to the lifting platform 501, the lifting column 305, the second position sensor 20308, the third position sensor 404, the upper limit sensor 307, the lower limit sensor 308, the third position detector 507, the fourth position detector 510, and the test subject sensor 506, respectively. The power box 1 provides the lifting column 305 and the lifting platform 501 with the power to rise or fall.

[0059] A method for using an automatic testing system for the flexural and compressive strength of test specimens includes the following steps:

[0060] (1) When the test body 6 meets the test requirements, the test body entry and exit device 2 is in the loading state. The first position detection piece 20309 is located in the "U" shaped notch of the first position detector 20310. The robotic arm places the test body 6 on the support plate 20301, so that the first position sensor 20307 and the second position sensor 20308 respectively sense the test body 6. The moving part 202011 of the drive member 20201 drives the fixed plate 20304 and the slider 20204 to move along the slide rail 20205. The first position detection piece 20309 separates from the first position detector 20310 until the first position detection piece 20309 enters the "U" shaped notch of the second position detector 20312. The drive member 20201 stops working, and the test body 6 is in the bending resistance test position.

[0061] (2) The controller issues a command, the lifting column 305 rises and drives the anti-bending extension part 30601 to extend into the first empty slot 203014 or the second empty slot 203015. The anti-bending pressure block 306 carries the test body 6 to be tested. The anti-bending pressure block 303 remains stationary and the anti-bending pressure block 306 rises until the test body 6 is crushed. After the first pressure sensor records the pressure change value and transmits it to the controller, the lifting column 305 descends and places the half test body 7 on the support plate 20301. The anti-bending extension part 30601 leaves the empty slot and is located below the support plate 20301. It stops when the lower limit sensor 308 senses the second position detection piece 309.

[0062] (3) The moving part 202011 of the driving member 20201 drives the fixed plate 20304 and the slider 20204 to move along the slide rail 20205. The first position detection piece 20309 separates from the second position detector 20312 until the first position detection piece 20309 enters the "U" shaped notch of the first position detector 20310. The driving member 20201 stops working and the specimen entry and exit device 2 is in the loading state.

[0063] (4) The robotic arm picks up two half specimens 7 and transports them to the “U”-shaped space formed by the calibration block group 405. The third position sensor 404 senses whether the half specimen 7 is placed on the calibration plate 402 and transmits the signal to the controller.

[0064] (5) After the calibration is completed, the robotic arm picks up a half specimen 7 and places it on the lifting platform 501. The specimen sensor 506 detects whether there is a half specimen 7. After it is determined that there is a half specimen 7, the lifting platform 501 drives the half specimen 7 to rise. The upper pressure plate 502 and the lifting platform 501 work together to conduct a compressive strength test on the half specimen 7. After the test is completed, the half specimen 7 is compressed into a block and flows out through the waste outlet 509. The lifting platform 501 then falls back to the initial position. The robotic arm picks up another half specimen 7 and puts it into the compressive strength testing device 5 for testing. The second pressure sensor senses the pressure change value applied by the lifting platform 501 and transmits it to the controller to record the compressive strength value of the half specimen 7.

[0065] It should be noted that the entire device in this application is an automated process. While the half-section specimen 7 formed by the previous test specimen 6 is undergoing a compressive strength test, the next test specimen 6 is undergoing a flexural strength test, so as to achieve a highly efficient and automated process.

[0066] The automatic testing system for flexural and compressive strength of the test specimen provided by this utility model has the following advantages: (1) It realizes the transportation of the test specimen 6 before and after the flexural test through automation, avoiding the need for personnel to manually place or remove the test specimen 6 from the flexural test position. The automated transportation of the test specimen 6 ensures the safety of the operation process and improves the test efficiency; (2) It integrates functions such as flexural strength, correction, compressive strength, and control, realizes the automation of flexural and compressive strength tests, effectively improves the testing efficiency, and reduces the overall area occupied by the equipment; (3) Through the setting of the correction plate 402 and the correction block group 405, it realizes the automatic correction and positioning of the half-section test specimen 7, which facilitates accurate subsequent handling and placement; (4) By setting the first pressure sensor to sense the flexural pressure and the second pressure sensor to sense the compressive pressure, and transmitting the data to the controller, it realizes the automatic recording and statistics of test data; (5) Through The test subject 6 is positioned by the first positioning block 20314, the second positioning block 20315 and the third positioning block 20316. The presence of the test subject 6 is detected by the first position sensor 20307 and the second position sensor 20308. The test subject 6 is automatically transported by the first position detection piece 20309. (6) The lifting column 305 is controlled by the cooperation of the upper limit sensor 307, the lower limit sensor 308 and the second position detection piece 309 to avoid the lifting column 305 from rising too high. (7) The test subject sensor 506 detects whether the test subject is placed on the lifting platform 501. The lifting platform 501 is controlled by the cooperation of the third position detector 507, the fourth position detector 510 and the third position detection piece 504. (8) The test subject is transported by a robotic arm throughout the process, realizing automated transport.

[0067] As an alternative implementation, the number of calibration block groups 405 on the calibration plate 402 may be one, three, four or even more.

[0068] As an alternative implementation, the drive component 20201 can also be a hydraulic telescopic component or an electric telescopic component, which drives the slider 20204 and the support component 203 to move through the telescopic end of the telescopic component.

[0069] As an alternative implementation, the correction plate 402 is inclined relative to the bottom of the "U"-shaped receiving space, or the transverse correction block 40502 is an elastic structure or has an elastic layer on its surface.

[0070] As an alternative implementation, the material of the correction block group 405 may also be metal, or the vertical correction block 40501 may be made of metal and the horizontal correction block 40502 may be an elastic structure (i.e., the material of the horizontal correction block 40502 may be an elastic material).

[0071] As an alternative implementation, in order to reduce the amount of friction between the correction block group 405 and the half specimen 7, the surfaces of the vertical correction block 40501 and the horizontal correction block 40502 that contact the half specimen 7 are provided with balls or rollers.

[0072] As an alternative implementation, to facilitate more accurate correction of the position of the half specimen 7, one or two vertical correction blocks 40501 in the correction block group 405 can be movable. After the half specimen 7 slides down and contacts the horizontal correction block 40502, the movable vertical correction block 40501 is clamped (in this application, the clamping method of the correction plate 402 on the vertical correction block 40501 is not limited, and can be magnetic, bolted, snap-fit, etc.).

[0073] As an alternative implementation, the flexural bearing block 306 may also be provided with a gripper, scraper or other mechanism to separate the test body 6 from the support component 203 when the test body 6 reaches the flexural testing position (e.g., the gripper places the test body 6 on the flexural bearing block 306, or the scraper scrapes the test body 6 onto the flexural bearing block 306).

[0074] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An automatic testing system for the flexural and compressive strength of test specimens, characterized in that, include: The test specimen entry and exit device (2) includes a support component (203) on which the test specimen (6) to be tested is placed; A flexural strength testing device (3) is provided corresponding to the specimen entry and exit device (2). The flexural strength testing device (3) has a flexural strength testing position. The support component (203) is driven to move toward the flexural strength testing device (3) to move the test specimen (6) to be tested into the flexural strength testing position. The flexural strength testing device (3) is adapted to break the test specimen (6) to be tested at the flexural strength testing position. After being broken, the test specimen (6) to be tested becomes two half specimens (7). The support component (203) is driven to move the half specimens (7) out of the flexural strength testing position.

2. The automatic testing system for flexural and compressive strength of specimens according to claim 1, characterized in that, The bending resistance testing device (3) includes a bending resistance pressure block (303) and a bending resistance bearing block (306). A bending resistance testing position is formed between the bending resistance pressure block (303) and the bending resistance bearing block (306). The bending resistance bearing block (306) moves relative to the support component (203) at the bending resistance testing position to separate the test object (6) from the support component (203). The bending resistance pressure block (303) and the bending resistance bearing block (306) move relative to each other to break the test object (6).

3. The automatic testing system for the flexural and compressive strength of specimens according to claim 2, characterized in that, The specimen entry and exit device (2) includes a base (201), which is connected to a support assembly (203). The support assembly (203) includes a support plate (20301), one end of which is provided with at least two spaced slots. The flexural bearing block (306) includes at least two spaced flexural extensions (30601), with one slot corresponding to one flexural extension (30601). The flexural bearing block (306) is driven to move the flexural extension (30601) into or out of the slot.

4. The automatic testing system for flexural and compressive strength of specimens according to claim 3, characterized in that, The support assembly (203) further includes a first positioning block (20314) and a second positioning block (20315). The support plate (20301) includes a first side plate portion (203012), a second side plate portion (203013), and a main plate portion (203011). The first side plate portion (203012) and the second side plate portion (203013) are disposed on the same side. The first side plate portion (203012) and the second side plate portion (203013) are respectively located at the same end of the main plate portion (203011). The first side plate portion (203012) A first slot (203014) is formed between the second side plate (203013) and the main board (203011), and a second slot (203015) is formed between the second side plate (203013) and the main board (203011). The first side plate (203012) is provided with two corresponding first positioning blocks (20314), and the second side plate (203013) is provided with two corresponding second positioning blocks (20315). The first positioning blocks (20314) and the second positioning blocks (20315) are used to position the test object (6) to be tested.

5. The automatic testing system for flexural and compressive strength of specimens according to claim 3, characterized in that, The test specimen entry and exit device (2) further includes a power component (202), which includes a drive component (20201), a slider (20204), and a slide rail (20205). The drive component (20201) is fixedly mounted on the base (201), and the slide rail (20205) is mounted on the base (201). The slider (20204) is fixedly connected to the support component (203), and the slider (20204) is adapted to the slide rail (20205). The drive component (20201) is adapted to drive the slider (20204) to move along the slide rail (20205).

6. The automatic testing system for flexural and compressive strength of specimens according to claim 4, characterized in that, The support assembly (203) further includes a first bracket (20305), which is fixedly connected to the first side plate (203012). The first bracket (20305) includes two correspondingly arranged bending portions (203051), each of which is provided with a first position sensor (20307). The two first position sensors (20307) are suitable for placing the test object (6) to be tested.

7. The automatic testing system for flexural and compressive strength of specimens according to claim 6, characterized in that, The support assembly (203) further includes a first position detector (20310) and a second position detector (20312), which are arranged along the length of the base (201). A first position detection piece (20309) is provided on the side of the support plate (20301). The first position detector (20310) and the second position detector (20312) are used to sense the position of the first position detection piece (20309).

8. The automatic testing system for flexural and compressive strength of specimens according to any one of claims 1-7, characterized in that, It also includes a specimen correction device (4), which is located downstream of the flexural strength testing device (3). The specimen correction device (4) includes a correction plate (402), which is suitable for placing a half specimen (7).

9. The automatic testing system for flexural and compressive strength of specimens according to claim 8, characterized in that, The specimen correction device (4) includes a supporting base plate (401) and a bearing rod (403). The bearing rod (403) is provided between the supporting base plate (401) and the correction plate (402). The correction plate (402) is provided with at least one set of correction blocks (405). The correction block set (405) includes two vertical correction blocks (40501) and one horizontal correction block (40502) arranged in a corresponding manner. The two vertical correction blocks (40501) and the one horizontal correction block (40502) form a "U" shaped receiving space to receive the half specimen (7).

10. The automatic testing system for flexural and compressive strength of specimens according to claim 9, characterized in that, The correction plate (402) is inclined relative to the horizontal direction of the bottom of the "U"-shaped receiving space, and / or at least the transverse correction block (40502) is an elastic structure or has an elastic layer on its surface.

11. The automatic testing system for flexural and compressive strength of specimens according to claim 8, characterized in that, It also includes a compression testing device (5), which is located downstream of the specimen correction device (4). The compression testing device (5) includes a lifting support platform (501), which is suitable for placing a half specimen (7).

12. The automatic testing system for flexural and compressive strength of specimens according to claim 11, characterized in that, The pressure testing device (5) further includes a first column (503) and an upper pressure plate (502). The upper pressure plate (502) is correspondingly arranged with the lifting support platform (501), and the upper pressure plate (502) is connected to the first column (503).

13. The automatic testing system for flexural and compressive strength of specimens according to claim 11, characterized in that, It also includes a power box (1) and a robotic arm. The power box (1) includes a box plate. The specimen entry and exit device (2), the bending resistance detection device (3), the specimen correction device (4) and the compression resistance detection device (5) are respectively arranged on the box plate. The power box (1) is equipped with a controller. The controller is connected to the drive unit (20201), the robotic arm, the first position sensor (20307), the first position detector (20310) and the second position detector (20312) respectively.

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