An instrument for analyzing the morphological characteristics of machine-made sand

Abstract

The present invention relates to the technical field of analytical instruments, and in particular to an instrument for analyzing the morphology characteristics of machine-made sand. The instrument comprises a control chassis, a control connection line, a height adjustment mechanism, a scanning motion mechanism, an optical measurement mechanism and a stage. One end of the control connection line is connected to the control chassis, and the height adjustment mechanism is connected to the other end of the control connection line. The height adjustment motor drives the height adjustment slider and the height adjustment block to slide up and down through the height adjustment screw to ensure the height adjustment in the vertical direction. The scanning lifting block can achieve vertical movement through the movement of the height adjustment slider. The accuracy of the focusing height affects the clarity and accuracy of each level in the imaging process. The up and down movement of the optical moving block is controlled by the scanning lifting block, which directly affects the height adjustment of the linear laser lens group and the imaging lens. The focusing position of the lens is ensured to be accurate through the movement in the vertical direction.

Description

Technical Field

[0001] The invention relates to the technical field of analytical instruments, and in particular to an instrument for analyzing the morphological characteristics of machine-made sand. Background Art

[0002] Domestic and foreign studies have shown that aggregate shape and surface characteristics, namely morphological characteristics, are important factors in determining the water demand of concrete mixtures. The morphological characteristics of aggregates are mainly granular. It has become a consensus in the civil industry that aggregate particles have a great influence on the performance of concrete. For example, the angularity of particles increases the compressive strength and flexural strength of concrete. Rough particles have a greater bonding force with cement slurry, which increases the strength of concrete, especially the flexural strength. Among them, the aggregate particle size of 2-5mm is an aggregate particle widely used in the civil construction industry. The study of the morphological characteristics of machine-made sand is very important. There are many methods to study the influence of the morphological characteristics of machine-made sand on the strength of concrete. Rapid scanning to obtain the three-dimensional particle shape and surface characteristics of machine-made sand, namely the 3D morphological characteristics of machine-made sand particles, is of great value and helps to improve the accuracy, precision, and efficiency of the analysis of the morphological characteristics of machine-made sand. At present, the morphological characteristics analysis equipment of machine-made sand is generally measured by contact. This measurement method has high requirements on the characteristics of the sample itself. When the size of the sample is small, the probe contacts the sample during the measurement process, which easily causes the sample to move, affecting the accuracy of the measurement result and resulting in low measurement accuracy. Summary of the invention

[0003] Based on this, it is necessary to provide an instrument for analyzing the morphological characteristics of machine-made sand to solve at least one of the technical problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A machine-made sand morphology characteristic analysis instrument comprises a control box, a control connection line, a height adjustment mechanism, a scanning motion mechanism, an optical measurement mechanism and a stage, one end of the control connection line is connected to the control box, the height adjustment mechanism is connected to the other end of the control connection line, the scanning motion mechanism is slidably mounted on one side wall of the height adjustment mechanism, the optical measurement mechanism comprises an optical moving component, an FPGA module, a short-wave laser, a linear laser lens group and two detection imaging components, the optical moving component is slidably mounted on a side wall of the scanning motion mechanism away from the height adjustment mechanism, An optical measurement cavity is opened at the bottom, the FPGA module is fixedly installed on the top of the optical measurement cavity, the short-wave laser is fixedly installed in the middle of the optical measurement cavity, and the short-wave laser is located below the FPGA module, the linear laser mirror group is fixedly installed at the bottom of the short-wave laser, the detection and imaging component is rotatably installed on one side wall of the optical measurement cavity, the two detection and imaging components are symmetrically arranged, and the two detection and imaging components are respectively located on both sides of the linear laser mirror group, the stage is fixedly installed at the bottom of the side wall of the height adjustment mechanism close to the height adjustment mechanism, and the machine-made sand to be analyzed is set on the top of the stage.

[0006] As a further improvement of the present invention, the height adjustment mechanism includes a height adjustment body, a height adjustment motor and a height adjustment screw. A height adjustment slot is provided on one side wall of the height adjustment body, a height limit slot is provided on one side wall of the height adjustment slot, a height motor slot is provided in the height adjustment body, and the height motor slot is located below the height adjustment slot. The height adjustment motor is fixedly installed in the height motor slot, and the output shaft of the height adjustment motor extends upward. The two ends of the height adjustment screw are respectively rotatably installed at the top and bottom of the height adjustment slot, and the output shaft of the height adjustment motor is fixedly connected to the bottom of the height adjustment screw.

[0007] As a further improvement of the present invention, the scanning motion mechanism includes a height adjustment slider, a height adjustment card block, a scanning lifting block, a scanning drive motor and a scanning drive screw. The height adjustment slider is threadedly installed on the side wall of the height adjustment screw, and the height adjustment slider is slidably set on the side wall of the height adjustment slide groove. The height adjustment card block is fixedly installed on one side wall of the height adjustment slider, and the height adjustment card block is slidably set on the side wall of the height limit slot. The scanning lifting block is fixedly installed on the side wall of the height adjustment slider away from the height adjustment card block. A scanning slide groove is provided on the side wall of the scanning lifting block away from the height adjustment body, and a scanning card slot is provided on the side wall of the scanning slide close to the height adjustment body. The scanning drive motor is fixedly installed at one end of the scanning card slot, one end of the scanning drive screw is rotatably installed on the end of the scanning card slot away from the scanning drive motor, and the other end of the scanning drive screw is fixedly installed on the output shaft of the scanning drive motor.

[0008] As a further improvement of the present invention, the optical moving assembly includes a scanning card block, a scanning slider and an optical moving block, the scanning card block is threadedly mounted on the side wall of the scanning drive screw, and the scanning card block is slidably set on the side wall of the scanning card slot, the scanning slider is fixedly mounted on the side wall of the scanning card block away from the height adjustment body, and the scanning slider is slidably set on the side wall of the scanning slide slot, the optical moving block is fixedly mounted on the side wall of the scanning slider away from the scanning card block, and the optical measurement cavity is opened at the bottom of the optical moving block.

[0009] As a further improvement of the present invention, the detection imaging component includes an adjustable connecting shaft, an image sensor, an imaging lens, a short-waveband filter and a data line. The adjustable connecting shaft is rotatably installed on a side wall of the optical measurement cavity, the image sensor is fixedly installed on one end of the adjustable connecting shaft, the imaging lens is fixedly installed on the bottom of the image sensor, the short-waveband filter is fixedly installed on the bottom of the imaging lens, and the two ends of the data line are respectively installed on the image sensor and the FPGA module, and the distance between the two imaging lenses gradually decreases in the vertical downward direction.

[0010] As a further improvement of the present invention, an angle adjustment component is provided in the optical moving block, an angle adjustment groove is provided in the optical moving block, and the angle adjustment groove is located on the side of the optical measuring cavity close to the height adjustment body, angle gear grooves are provided on the opposite side walls of the angle adjustment groove, and the end of the adjustment connecting shaft away from the image sensor extends into the angle gear groove, an angle motor groove is also provided in the optical moving block, and the angle motor groove is located above the angle adjustment groove, and the angle adjustment component is used to adjust the angles of the two imaging lenses.

[0011] As a further improvement of the present invention, the angle adjustment assembly includes an angle adjustment motor, an angle adjustment screw, an adjustment double-tooth plate, and two angle adjustment gears. The angle adjustment motor is fixedly mounted on the side wall of the angle motor slot, the bottom of the angle adjustment screw is rotatably mounted on the bottom of the angle adjustment slot, and the top of the angle adjustment screw extends upward and is fixedly connected to the output shaft of the angle adjustment motor. The adjustment double-tooth plate is threadedly mounted on the side wall of the angle adjustment screw, and the adjustment double-tooth plate is slidably set on the side wall of the angle adjustment slot, the two angle adjustment gears are respectively fixedly mounted on the ends of the two adjustment connecting shafts away from the image sensor, and the two angle adjustment gears are respectively located in the two angle gear slots, and the two angle adjustment gears are respectively meshed with the two sides of the adjustment double-tooth plate.

[0012] As a further improvement of the present invention, two fill light components are arranged in the scanning lifting block, and the two fill light components are symmetrically arranged, two fill light lifting grooves are arranged at the bottom of the scanning lifting block, a rack lifting groove is arranged at the top of the fill light lifting groove, a second gear groove is arranged on the side walls on which the two rack lifting grooves are close to each other, a first gear groove is arranged on the side walls on both sides of the height adjustment slider, a plurality of linkage gear grooves are arranged on the side walls on both sides of the height adjustment slide, and the plurality of linkage gear grooves on the same side are arranged at equal distances in the vertical direction.

[0013] As a further improvement of the present invention, the fill light assembly includes a fill light adjustment shaft, an active gear, a passive gear, a fill light rack, a fill light slider and a fill light lamp. One end of the fill light adjustment shaft is rotatably mounted on a side wall of the second gear groove away from the height adjustment body, and the other end of the fill light adjustment shaft passes through the scanning lifting block and the height adjustment slider and extends into the first gear groove. The active gear is fixedly mounted on an end of the fill light adjustment shaft away from the second gear groove, and the active gear is located in the first gear groove. The active gear is meshed with a corresponding number of linkage gear grooves. The passive gear is fixedly mounted on an end of the fill light adjustment shaft away from the first gear groove, and the passive gear is located in the second gear groove. The fill light rack is slidably mounted on the side wall of the rack lifting groove, and the fill light rack is meshed with the passive gear. The fill light slider is fixedly mounted on the bottom of the fill light rack, and the fill light slider is slidably set on the side wall of the fill light lifting groove, and the fill light lamp is fixedly mounted on the bottom of the fill light slider.

[0014] As a further improvement of the present invention, a lubrication receiving groove is provided in the height adjustment body, a sealing groove is provided on the top of the height adjustment body, and the sealing groove is connected to the lubrication receiving groove, a sealing block is installed in the sealing groove, two lubrication through grooves are provided at the bottom of one side wall of the lubrication receiving groove, a piston vertical groove is provided at one end of the lubrication through groove away from the lubrication receiving groove, a connecting vertical groove is provided at the bottom of the piston vertical groove, and the bottom of the connecting vertical groove is connected to the height adjustment slide groove, an L-shaped dropper is installed on the side wall of the piston vertical groove away from the lubrication through groove, and one end of the L-shaped dropper extends downward, and the L-shaped dropper The end away from the height adjustment body is located above the rack lifting groove, a piston slider is slidably installed in the piston vertical groove, a piston supporting rod is fixedly installed at the bottom of the piston slider, and the piston supporting rod is slidably set on the side wall connecting the vertical groove, the bottom of the piston supporting rod extends into the height adjustment slide groove, a reset spring is fixedly installed at the bottom of the piston slider, and the bottom of the reset spring is fixedly connected to the bottom of the piston vertical groove, the piston supporting rod is located on the inner side of the reset spring, a one-way valve is provided in the lubrication groove and the L-shaped dropper, and lubricant is provided on the top of the lubrication receiving groove and the piston vertical groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The height adjustment motor drives the height adjustment slider and the height adjustment block to slide up and down through the height adjustment screw to ensure the height adjustment in the vertical direction. The scanning lifting block can achieve vertical movement through the movement of the height adjustment slider. The accuracy of the focusing height affects the clarity and accuracy of each level in the imaging process. The up and down movement of the optical moving block is controlled by the scanning lifting block, which directly affects the height adjustment of the linear laser mirror group and the imaging lens. The focus position of the lens is ensured to be accurate through movement in the vertical direction. The angle adjustment motor can control the angle of the image sensor and the imaging lens through the angle adjustment screw, the double tooth plate, and the angle adjustment gear to make fine adjustments, so that the angle adjustment of the light path during imaging is more precise, ensuring that the angle and position of the imaging lens can be fine-tuned when needed, thereby improving the accuracy and consistency of imaging, and improving the clarity of the image and the accuracy of focusing.

[0017] 2. The scanning drive screw is driven to rotate by the scanning drive motor, so that the scanning card block and the scanning slider move laterally, thereby realizing the scanning movement of the optical moving block, which is helpful to obtain high-quality scanning images or data. The coordinated work of the scanning card block, the scanning slider and the optical moving block ensures that the two imaging lenses can fully scan the machine-made sand on the stage, which is very important for obtaining the morphological feature information of the machine-made sand in one scan, avoiding missed scans or omissions. A certain angle is formed between the two imaging lenses, and the vertical decrease in the distance between the two imaging lenses helps to optimize the imaging quality during the scanning process. The optimization of the angle and distance can reduce the aberration and distortion during imaging, increase the imaging capture area, and improve the clarity and accuracy of the image.

[0018] 3. By adjusting the position of the fill light and maintaining appropriate light intensity, the clarity of the image and visibility of details can be ensured. Especially when the external light is dim, the use of the fill light can compensate for the lack of light and maintain the brightness of the image. The up and down movement of the fill light can adjust the position of the light source to avoid the light source of the fill light moving a long distance following the optical moving block. The dynamic adjustment of the fill light can effectively avoid imaging exposure or darkening caused by excessive or weak light. The position of the fill light can be automatically adjusted according to the movement of the height adjustment slider to ensure moderate lighting and avoid affecting the image quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0020] Figure 2 is a schematic cross-sectional structure diagram of an optical measurement mechanism according to an embodiment of the present invention;

[0021] Figure 3 is another cross-sectional structural schematic diagram of an optical measuring mechanism according to an embodiment of the present invention;

[0022] Figure 4 It is a schematic cross-sectional structure diagram of an embodiment of the present invention without a control cabinet and control connection wires;

[0023] Figure 5 Another cross-sectional structural schematic diagram of an embodiment of the present invention without the control cabinet and the control connection line;

[0024] Figure 6 It is another cross-sectional structural schematic diagram of an embodiment of the present invention without the control cabinet and the control connection wires;

[0025] Figure 7 It is a schematic cross-sectional structure diagram of a height adjustment mechanism and a part of a scanning motion mechanism according to an embodiment of the present invention;

[0026] Figure 8 It is a schematic structural diagram of a height adjustment body and a fill light assembly according to an embodiment of the present invention;

[0027] Fig. 9 for Figure 4 A partial enlarged view of the middle A;

[0028] Fig.10 A schematic diagram of the internal structure of an optical measurement mechanism according to an embodiment of the present invention;

[0029] In the figure: 1. control chassis; 2. control connection line; 20. height adjustment mechanism; 30. scanning motion mechanism; 40. optical measurement mechanism; 3. stage; 41. optical moving component; 42. FPGA module; 43. short-wave laser; 44. linear laser mirror group; 45. detection imaging component; 411. optical measurement cavity; 101. machine-made sand; 21. height adjustment body; 22. height adjustment motor; 23. height adjustment screw; 211. height adjustment slide; 212. height limit card slot; 213. height motor slot; 31. height adjustment slider; 32. height adjustment card block; 33. scanning lifting block; 34. scanning drive motor; 35. scanning drive screw; 331. scanning slide; 332. scanning card slot; 412. scanning card block; 413. scanning slider; 414. optical moving block; 451. adjustment connecting shaft; 452. image sensor; 453. imaging lens; 454, short-wave filter; 455, data line; 50, angle adjustment assembly; 415, angle adjustment slot; 416, angle gear slot; 417, angle motor slot; 51, angle adjustment motor; 52, angle adjustment screw rod; 53, double tooth plate adjustment; 54, angle adjustment gear; 60, fill light assembly; 333, fill light lifting slot; 334, rack lifting slot; 335, second gear slot; 311, first gear slot; 214, linkage gear slot ; 61. Fill light adjustment shaft; 62. Active gear; 63. Passive gear; 64. Fill light rack; 65. Fill light slider; 66. Fill light; 215. Lubrication receiving groove; 216. Sealing groove; 71. Sealing block; 217. Lubrication through groove; 218. Piston vertical groove; 219. Connecting vertical groove; 72. L-shaped dropper; 73. Piston slider; 74. Piston holding rod; 75. Reset spring; 102. Linear laser light path; 103. Detection light path. DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0033] See also Figures 1 to 10 A machine-made sand morphology characteristic analysis instrument comprises a control box 1, a control connection line 2, a height adjustment mechanism 20, a scanning motion mechanism 30, an optical measurement mechanism 40 and a stage 3, one end of the control connection line 2 is connected to the control box 1, the height adjustment mechanism 20 is connected to the other end of the control connection line 2, the scanning motion mechanism 30 is slidably mounted on one side wall of the height adjustment mechanism 20, the optical measurement mechanism 40 comprises an optical moving component 41, an FPGA module 42, a short-wave laser 43, a linear laser lens group 44 and two detection imaging components 45, the optical moving component 41 is slidably mounted on the side wall of the scanning motion mechanism 30 away from the height adjustment mechanism 20, and the bottom of the optical moving component 41 is An optical measuring cavity 411 is opened in the part, an FPGA module 42 is fixedly installed on the top of the optical measuring cavity 411, a short-wave laser 43 is fixedly installed in the middle of the optical measuring cavity 411, and the short-wave laser 43 is located below the FPGA module 42, a linear laser lens group 44 is fixedly installed on the bottom of the short-wave laser 43, a detection and imaging component 45 is rotatably installed on one side wall of the optical measuring cavity 411, two detection and imaging components 45 are symmetrically arranged, and the two detection and imaging components 45 are respectively located on both sides of the linear laser lens group 44, a stage 3 is fixedly installed on the bottom of one side wall of the height adjustment mechanism 20 close to the height adjustment mechanism 20, and the top of the stage 3 is provided with machine-made sand 101 to be analyzed.

[0034] The height adjustment mechanism 20 includes a height adjustment body 21, a height adjustment motor 22 and a height adjustment screw 23. A height adjustment slot 211 is provided on one side wall of the height adjustment body 21, a height limit slot 212 is provided on one side wall of the height adjustment slot 211, a height motor slot 213 is provided in the height adjustment body 21, and the height motor slot 213 is located below the height adjustment slot 211, the height adjustment motor 22 is fixedly installed in the height motor slot 213, and the output shaft of the height adjustment motor 22 extends upward, the two ends of the height adjustment screw 23 are respectively rotatably installed on the top and bottom of the height adjustment slot 211, and the output shaft of the height adjustment motor 22 is fixedly connected to the bottom of the height adjustment screw 23.

[0035] The scanning motion mechanism 30 includes a height adjustment slider 31, a height adjustment block 32, a scanning lifting block 33, a scanning drive motor 34 and a scanning drive screw 35. The height adjustment slider 31 is threadedly mounted on the side wall of the height adjustment screw 23, and the height adjustment slider 31 is slidably arranged on the side wall of the height adjustment slot 211. The height adjustment block 32 is fixedly mounted on one side wall of the height adjustment slider 31, and the height adjustment block 32 is slidably arranged on the side wall of the height limit slot 212. The scanning lifting block 33 is fixedly mounted on the height adjustment screw 23. A scanning slot 331 is provided on the side wall of the slider 31 away from the height adjustment block 32, a scanning lifting block 33 is provided on the side wall away from the height adjustment body 21, a scanning slot 332 is provided on the side wall of the scanning slot 331 close to the height adjustment body 21, a scanning drive motor 34 is fixedly installed at one end of the scanning slot 332, one end of the scanning drive screw 35 is rotatably installed at the end of the scanning slot 332 away from the scanning drive motor 34, and the other end of the scanning drive screw 35 is fixedly installed on the output shaft of the scanning drive motor 34.

[0036] The optical moving assembly 41 includes a scanning card block 412, a scanning slider 413 and an optical moving block 414. The scanning card block 412 is threadedly installed on the side wall of the scanning drive screw 35, and the scanning card block 412 is slidably set on the side wall of the scanning card slot 332. The scanning slider 413 is fixedly installed on the side wall of the scanning card block 412 away from the height adjustment body 21, and the scanning slider 413 is slidably set on the side wall of the scanning slide slot 331. The optical moving block 414 is fixedly installed on the side wall of the scanning slider 413 away from the scanning card block 412. The optical measurement cavity 411 is opened at the bottom of the optical moving block 414.

[0037] The detection imaging component 45 includes an adjustment connecting shaft 451, an image sensor 452, an imaging lens 453, a short-wave filter 454 and a data line 455. The adjustment connecting shaft 451 is rotatably mounted on a side wall of the optical measurement cavity 411, the image sensor 452 is fixedly mounted on one end of the adjustment connecting shaft 451, the imaging lens 453 is fixedly mounted on the bottom of the image sensor 452, the short-wave filter 454 is fixedly mounted on the bottom of the imaging lens 453, and both ends of the data line 455 are respectively mounted on the image sensor 452 and the FPGA module 42, and the distance between the two imaging lenses 453 gradually decreases in the vertical downward direction.

[0038] An angle adjustment component 50 is provided in the optical moving block 414. An angle adjustment slot 415 is provided in the optical moving block 414, and the angle adjustment slot 415 is located on the side of the optical measuring cavity 411 close to the height adjustment body 21. Angle gear slots 416 are provided on the opposite side walls of the angle adjustment slot 415. The end of the adjustment connecting shaft 451 away from the image sensor 452 extends into the angle gear slot 416. An angle motor slot 417 is also provided in the optical moving block 414, and the angle motor slot 417 is located above the angle adjustment slot 415. The angle adjustment component 50 is used to adjust the angles of the two imaging lenses 453.

[0039] The angle adjustment assembly 50 includes an angle adjustment motor 51, an angle adjustment screw 52, ​​an adjustment double-tooth plate 53, and two angle adjustment gears 54. The angle adjustment motor 51 is fixedly installed on the side wall of the angle motor slot 417. The bottom of the angle adjustment screw 52 is rotatably installed on the bottom of the angle adjustment slot 415, and the top of the angle adjustment screw 52 extends upward and is fixedly connected to the output shaft of the angle adjustment motor 51. The adjustment double-tooth plate 53 is threadedly installed on the side wall of the angle adjustment screw 52, ​​and the adjustment double-tooth plate 53 is slidably set on the side wall of the angle adjustment slot 415. The two angle adjustment gears 54 are respectively fixedly installed on the ends of the two adjustment connecting shafts 451 away from the image sensor 452, and the two angle adjustment gears 54 are respectively located in the two angle gear slots 416, and the two angle adjustment gears 54 are respectively meshed with the two sides of the adjustment double-tooth plate 53.

[0040] Two fill light components 60 are arranged in the scanning lifting block 33, and the two fill light components 60 are symmetrically arranged. Two fill light lifting grooves 333 are provided at the bottom of the scanning lifting block 33, and a rack lifting groove 334 is provided at the top of the fill light lifting groove 333. A second gear groove 335 is provided on the side wall on which the two rack lifting grooves 334 are close to each other, a first gear groove 311 is provided on the side walls on both sides of the height adjustment slider 31, and a plurality of linkage tooth grooves 214 are provided on the side walls on both sides of the height adjustment slide 211, and the plurality of linkage tooth grooves 214 on the same side are arranged at equal distances in the vertical direction.

[0041] The fill light assembly 60 includes a fill light adjustment shaft 61, a driving gear 62, a driven gear 63, a fill light rack 64, a fill light slider 65 and a fill light lamp 66. One end of the fill light adjustment shaft 61 is rotatably mounted on a side wall of the second gear slot 335 away from the height adjustment body 21, and the other end of the fill light adjustment shaft 61 passes through the scanning lifting block 33 and the height adjustment slider 31 and extends into the first gear slot 311. The driving gear 62 is fixedly mounted on one end of the fill light adjustment shaft 61 away from the second gear slot 335, and the driving gear 62 is located in the first gear slot 311. Inside, the driving gear 62 is meshed with the corresponding several linkage tooth grooves 214, the passive gear 63 is fixedly installed on the end of the fill light adjustment shaft 61 away from the first gear groove 311, and the passive gear 63 is located in the second gear groove 335, the fill light rack 64 is slidably installed on the side wall of the rack lifting groove 334, and the fill light rack 64 is meshed with the passive gear 63, the fill light slider 65 is fixedly installed on the bottom of the fill light rack 64, and the fill light slider 65 is slidably set on the side wall of the fill light lifting groove 333, and the fill light lamp 66 is fixedly installed on the bottom of the fill light slider 65.

[0042] A lubrication receiving groove 215 is provided in the height adjustment body 21, a blocking groove 216 is provided on the top of the height adjustment body 21, and the blocking groove 216 is communicated with the lubrication receiving groove 215, a blocking block 71 is installed in the blocking groove 216, two lubrication grooves 217 are provided at the bottom of one side wall of the lubrication receiving groove 215, a piston vertical groove 218 is provided at one end of the lubrication groove 217 away from the lubrication receiving groove 215, a connecting vertical groove 219 is provided at the bottom of the piston vertical groove 218, and the bottom of the connecting vertical groove 219 is communicated with the height adjustment slide 211, an L-shaped dropper 72 is installed on the side wall of the piston vertical groove 218 away from the lubrication groove 217, and one end of the L-shaped dropper 72 extends downward, and the L-shaped dropper 72 The end away from the height adjustment body 21 is located above the rack lifting groove 334, and a piston slider 73 is slidably installed in the piston vertical groove 218. A piston supporting rod 74 is fixedly installed at the bottom of the piston slider 73, and the piston supporting rod 74 is slidably set on the side wall of the connecting vertical groove 219. The bottom of the piston supporting rod 74 extends into the height adjustment slide groove 211, and a return spring 75 is fixedly installed at the bottom of the piston slider 73, and the bottom of the return spring 75 is fixedly connected to the bottom of the piston vertical groove 218. The piston supporting rod 74 is located on the inner side of the return spring 75. Check valves are provided in the lubrication groove 217 and the L-shaped dropper 72, and lubricant is provided on the top of the lubrication receiving groove 215 and the piston vertical groove 218.

[0043] In one embodiment, the control chassis 1 is electrically connected to the height adjustment mechanism 20, the scanning motion mechanism 30 and the optical measurement mechanism 40 through the control connection line 2. The operator can drive the scanning motion mechanism 30 to move up and down by controlling the height adjustment mechanism 20. The scanning motion mechanism 30 can drive the optical measurement mechanism 40 to move up and down, thereby realizing the height adjustment of the linear laser mirror group 44 and the two detection imaging components 45, so that the linear laser mirror group 44 and the two detection imaging components 45 are located at a suitable horizontal height for analysis and measurement. By starting the scanning motion mechanism 30, the optical measurement mechanism 40 can be driven to move horizontally. When analyzing the machine-made sand 101, the optical measurement mechanism 40 is moved to the left by the scanning motion mechanism 30, and then the optical measurement mechanism 40 is driven to move to the right to scan the machine-made sand 101 on the stage 3. The two detection imaging components 45 are symmetrically arranged, and the two detection imaging components 45 form a certain angle. Through the two detection imaging components 45, more comprehensive machine-made sand morphology characteristics can be obtained, and imaging shadows can be reduced, so that it is more conducive to analyzing it and improving the accuracy of its analysis.

[0044] When in use, the operator starts the height adjustment motor 22, and the height adjustment motor 22 can drive the height adjustment screw 23 to rotate. The rotation of the height adjustment screw 23 can drive the height adjustment slider 31 to slide up and down. The height adjustment slider 31 can drive the height adjustment block 32 to slide up and down. At the same time, the height adjustment slider 31 can also drive the scanning lifting block 33 to slide up and down. The scanning lifting block 33 can drive the optical moving block 414 to move up and down through the scanning block 412 and the scanning slider 413. The optical moving block 414 can make the linear laser mirror group 44 and the two imaging lenses 453 move up and down, so as to adjust the horizontal height of the focus. After the focus height adjustment is completed, the operator can start the angle adjustment motor 51, and the angle adjustment motor 51 can drive the angle adjustment screw rod 52 to rotate. The angle adjustment screw rod 52 can drive the adjustment double tooth plate 53 to move up and down. The adjustment double tooth plate 53 can drive the angle adjustment gear 54 to rotate. The angle adjustment gear 54 can drive the adjustment connecting shaft 451 to rotate. The adjustment connecting shaft 451 can drive the image sensor 452 to rotate. The image sensor 45 2 can drive the imaging lens 453 to rotate, thereby realizing fine adjustment of the angle of the imaging lens 453, making the focusing more accurate and improving the accuracy of the analysis results. The height adjustment motor 22 drives the height adjustment slider 31 and the height adjustment block 32 to slide up and down through the height adjustment screw 23 to ensure the height adjustment in the vertical direction. The scanning lifting block 33 can realize vertical movement through the movement of the height adjustment slider 31. The accuracy of the focusing height affects the clarity and accuracy of each level in the imaging process. The up and down movement of the optical moving block 414 is controlled by the scanning lifting block 33, which directly affects the height adjustment of the linear laser lens group 44 and the imaging lens 453. The focus position of the lens is ensured to be accurate through the movement in the vertical direction. The angle adjustment motor 51 can control the angle of the image sensor 452 and the imaging lens 453 through the angle adjustment screw 52, ​​the adjustment double tooth plate 53, and the angle adjustment gear 54 to make fine adjustment, so that the angle adjustment of the light path during imaging is more accurate, ensuring that the angle and position of the imaging lens 453 can be fine-tuned when needed, thereby improving the accuracy and consistency of imaging, and improving the clarity of the image and the accuracy of focusing.

[0045] In one embodiment, after the focus adjustment is completed, the operator can start the scanning drive motor 34 in the forward direction, the scanning drive motor 34 can drive the scanning drive screw 35 to rotate forward, the scanning drive screw 35 can drive the scanning card block 412 to move leftward in the scanning card slot 332, the scanning card block 412 can drive the scanning slider 413 to move leftward in the scanning slide slot 331, the scanning slider 413 can drive the optical moving block 414 to move leftward, and the optical moving block 414 can synchronously drive the linear laser mirror group 44 and the two imaging lenses 453 to move leftward. When the optical moving block 414 moves to the maximum distance, the scanning drive motor 34 is started in the reverse direction, and the scanning drive motor 34 can drive the scanning drive screw 35 to rotate in the reverse direction, and the scanning drive screw 35 can drive the scanning card block 412 to move rightward in the scanning card slot 332, and the scanning card block 412 can drive the scanning slider 413 to move rightward in the scanning slide slot 331, and the scanning slider 413 can drive the optical moving block 414 to move rightward, and the optical moving block 414 can synchronously drive the linear laser lens group 44 and the two imaging lenses 453 to move rightward. The linear laser mirror group 44 and the two imaging lenses 453 simultaneously scan the machine-made sand 101 on the stage 3 during the rightward movement. A certain angle is formed between the two imaging lenses 453. The distance between the two imaging lenses 453 gradually decreases in the vertical downward direction. The scanning drive screw 35 is driven by the scanning drive motor 34 to rotate, so that the scanning block 412 and the scanning slider 413 are moved horizontally, thereby realizing the scanning movement of the optical moving block 414, which is helpful to obtain high-quality scanning images or data. The scanning block 412, The coordinated work of the scanning slider 413 and the optical moving block 414 ensures that the two imaging lenses 453 fully scan the machine-made sand 101 on the stage 3, which is crucial for obtaining the morphological feature information of the machine-made sand 101 in one scan and avoids missed scans or omissions. A certain angle is formed between the two imaging lenses 453, and the vertical decrease in the distance between the two imaging lenses 453 helps to optimize the imaging quality during the scanning process. The optimization of the angle and distance can reduce the aberration and distortion during imaging, increase the capture area of ​​the imaging, and improve the clarity and accuracy of the image.

[0046] For example, the short-wave laser 43 is shaped into a narrow line width linear laser optical path 102 with a length of 10 mm (in the Y direction) and a width of 10 μm (in the X direction) by a linear laser lens group 44. The linear laser lens group 44 is a lens group composed of optical elements such as cylindrical lenses. The linear laser optical path 102 has good energy uniformity along the length direction, i.e., the Y direction. The short-wave laser 43 is located at the center of the optical measurement cavity 411 and emits vertically downward. The linear laser optical path 102 is vertically projected from top to bottom onto the surface of the machine-made sand 101 on the stage 3, forming a direct structure in the line laser triangulation measurement method. A pair of low-magnification and large-depth-of-field imaging lenses 453 with the same specifications and attached short-wave filters 454 are respectively connected to a pair of image sensors 452 with the same specifications. The imaging lens 453 focuses on the line laser projected onto the surface, receives the laser signal reflected back from the surface of the machine-made sand 101 on the stage 3, and filters unnecessary image information. The two imaging lenses 453, The image sensors 452 are respectively located on the left and right sides of the short-wave laser 43. The two imaging lenses 453 and the two image sensors 452 are symmetrically distributed relative to the short-wave laser 43. The symmetrical optical-mechanical structure is used to form the same angle and the same focus to form a single-line binocular structure. The optical measurement mechanism 40 of the single-line binocular structure is installed on the scanning motion mechanism 30, and the scanning motion mechanism 30 is installed on the height adjustment mechanism 20, so that the optical measurement mechanism 40 is convenient to align the measured sample. The measured sample, that is, the machine-made sand 101 particles, is scattered on the surface of the stage 3 without contact or stacking. The height adjustment mechanism 20 adjusts the focusing height of the linear laser light path 102 to ensure that the surface of the machine-made sand 101 has a sufficient signal-to-noise ratio. The scanning motion mechanism 30 carries the single-line binocular optical measurement mechanism 40 to obtain the height fluctuation information of the upper surface of the machine-made sand 101 in a single scan along the X direction. Compared with the single-field two-dimensional imaging, it is more complete, and the details of the morphological features of the three-dimensional measurement are more accurate.

[0047] The three-dimensional measurement of the instrument adopts the principle of linear laser triangulation imaging. The linear laser mirror group 44 needs to be customized to make the linear laser weakly focused along the optical axis direction to form a linear laser optical path 102 with a longer focusing range to ensure that there is no obvious difference in the laser spot size within the full height range of the machine-made sand 101, so that the pixel resolution of the image sensor 452 remains consistent within the measurement range, reducing the distortion of three-dimensional morphology measurement. The length of the narrow line width linear laser optical path 102 determines the width of the field of view of a single measurement. The field width is divided by the number of pixels of the image sensor 452 to obtain the lateral measurement resolution of the instrument, while the longitudinal resolution depends on the optical magnification of the imaging lens 453, the angle between the image sensor 452 and the emission optical path of the short-wave laser 43, and the sampling accuracy of the linear laser optical path 102, such as 1 / 4 pixel, 1 / 16 pixel, etc.The imaging lens 453 has a low magnification and a greater depth of field, which can cover the 2-5mm size of the machine-made sand 101, so as to receive the reflected signal of the line laser on the surface of the machine-made sand 101 as completely as possible, and obtain the upper surface data. The original data of the three-dimensional morphological features comes from the lines formed by the light of the line laser irradiating on the surface of the object, which is reflected in the image as a group of discrete pixels. In order to capture an image that is conducive to contour extraction, we generally add a filter in front of the camera lens to only allow the short-wave laser to be reflected from the surface of the machine-made sand 101 and enter the image sensor 452. In the image captured by the image sensor 452, there is a relatively bright pixel in the picture, which represents the effective signal from the surface of the machine-made sand 101. The other surfaces not illuminated by the laser are very dark in the image (because there is no reflected light). By extracting the pixel coordinates on the line from the image sensor 452, the ups and downs of the morphological features on this vertical section are calculated according to the "triangulation method". By scanning along the X direction, the imaging lens 453 is used to form a detection light path 103. The two detection light paths 103 contribute to the two sides of the linear laser light path 102 respectively. Information, information complementarity reduces the scanning blind area. The artificial sand 101 has low reflectivity and a rough surface. Usually, there is no interference from secondary reflection in the line laser triangulation imaging, and no false image will be formed in the image sensor 452 of the instrument to affect the measurement accuracy. Since the detection light path 103 is at an angle with respect to the linear laser light path 102 and is inclined relative to the horizontal plane, once there is a raised obstruction on the reflection path of the traditional line laser triangulation measurement technology, the reflected laser line cannot enter the imaging system, thereby causing the signal pixel on the image sensor 452 to be missing, and the 3D image is finally calculated. The missing point cloud data affects the subsequent point cloud data analysis. The single-line binocular synchronous stitching solution complements the blind spots of the two detection light paths 103 along the X direction to eliminate the blind spots in the X scanning direction, so that more and more accurate morphological features can be obtained in a single scanning measurement. By utilizing the 3D point cloud data of the surface morphological features of the machine-made sand 101 combined with subsequent processing algorithms such as fitting and filtering, the three-dimensional sphericity coefficient, aspect ratio, and fullness ratio of the surface of the machine-made sand are obtained, which provides a more efficient and accurate technical means for analyzing the influence of the morphological features of the machine-made sand on the properties of concrete.

[0048] In another embodiment, when the external light environment is weak and affects the imaging, the operator can turn on the two fill-in lights 66 to increase the light intensity so as to make the image clearer and avoid the blurred imaging caused by the dark external light. In the process of height adjustment, when the height adjustment slider 31 moves upward, the fill-in lights 66, the linear laser lens group 44 and the two imaging lenses 453 will move upward away from the stage 3. The fill-in lights 66 moving away from the stage 3 will cause the light to become weaker. The height adjustment slider 31 can drive the fill-in light adjustment shaft 61 to move upward, and the fill-in light adjustment shaft 61 can drive the active gear 62 and the passive gear 63 to move upward. The active gear 62 can rotate through the corresponding plurality of linkage tooth grooves 214, and the active gear 6 2 rotation can drive the fill light adjustment shaft 61 to rotate, the fill light adjustment shaft 61 can drive the passive gear 63 to rotate, the passive gear 63 can drive the fill light rack 64 to move downward, the fill light rack 64 can drive the fill light slider 65 to move downward in the fill light lifting groove 333, the fill light slider 65 can drive the fill light lamp 66 to move downward, so that the fill light lamp 66 can move to the bottom of the fill light lifting groove 333, so that the light source of the fill light lamp 66 can move downward during the upward movement of the linear laser lens group 44 and the two imaging lenses 453, thereby reducing the shielding of the light source by the fill light lifting groove 333, improving the light intensity, and avoiding the fill light lamp 66 from being away from the stage 3, which will cause the light to become weak. When the height adjustment slider 31 moves downward, the height adjustment The slider 31 can drive the fill light adjustment shaft 61 to move downward, the fill light adjustment shaft 61 can drive the active gear 62 and the passive gear 63 to move downward, the active gear 62 can rotate in the opposite direction through the corresponding plurality of linkage tooth grooves 214, the rotation of the active gear 62 can drive the fill light adjustment shaft 61 to rotate in the opposite direction, the fill light adjustment shaft 61 can drive the passive gear 63 to rotate in the opposite direction, the passive gear 63 can drive the fill light rack 64 to move upward, the fill light rack 64 can drive the fill light slider 65 to move upward in the fill light lifting groove 333, the fill light slider 65 can drive the fill light lamp 66 to move upward, so that the fill light lamp 66 can move to the top of the fill light lifting groove 333, so that the linear laser lens group 44 and the two When the imaging lens 453 moves downward, the light source of the fill light 66 can move upward, increasing the shielding of the light source by the fill light lifting slot 333, reducing the light intensity, and preventing the fill light 66 from being too close to the stage 3, resulting in strong light and image exposure. By adjusting the position of the fill light 66, the appropriate light intensity is maintained to ensure the clarity of the image and the visibility of details. In particular, when the external light is dim, the use of the fill light 66 can compensate for the lack of light, so that the brightness of the image can be maintained. The up and down movement of the fill light 66 can adjust the position of the light source to avoid the light source of the fill light 66 following the optical moving block 414 to move a long distance. The dynamic adjustment of the fill light 66 can effectively avoid the imaging exposure or too dark phenomenon caused by too strong or too weak light.The position of the fill light 66 can be automatically adjusted according to the movement of the height adjustment slider 31 to ensure moderate illumination and avoid affecting the imaging quality.

[0049] In yet another embodiment, the height adjustment slider 31 moves upward for a certain distance and then moves further upward to abut against the piston abutting rod 74, and drives the piston abutting rod 74 to move upward. The piston abutting rod 74 can drive the piston slider 73 to move upward in the piston vertical groove 218. The upward movement of the piston slider 73 can squeeze the lubricant at the top of the piston vertical groove 218, so that the lubricant drips into the rack lifting groove 334 through the L-shaped dropper 72, so as to lubricate the fill light rack 64 and the passive gear 63, thereby improving the smoothness of the linkage. When the height adjustment slider 31 no longer abuts the piston abutting rod 74, the return tension spring 75 drives the piston slider 73 to move downward in the piston vertical groove 218, so that the lubricant in the lubrication receiving groove 215 enters the top of the piston vertical groove 218 through the lubrication through groove 217. The L-shaped dropper 72 and the one-way valve in the lubrication through groove 217 only allow the lubricant to flow in one direction. When the lubricant in the lubrication receiving groove 215 is less, the blocking block 71 can be opened to add lubricant to the lubrication receiving groove 215 through the blocking groove 216.

[0050] This case can achieve: 1. The height adjustment motor 22 drives the height adjustment slider 31 and the height adjustment block 32 to slide up and down through the height adjustment screw 23 to ensure the height adjustment in the vertical direction. The scanning lifting block 33 can achieve vertical movement through the movement of the height adjustment slider 31. The accuracy of the focusing height affects the clarity and accuracy of each level in the imaging process. The up and down movement of the optical moving block 414 is controlled by the scanning lifting block 33, which directly affects the height adjustment of the linear laser mirror group 44 and the imaging lens 453. The focus position of the lens is accurate through movement in the vertical direction. The angle adjustment motor 51 can control the angle of the image sensor 452 and the imaging lens 453 through the angle adjustment screw 52, ​​the adjusting double tooth plate 53, and the angle adjustment gear 54 to fine-tune the angle, so that the angle adjustment of the light path during imaging is more precise, ensuring that the angle and position of the imaging lens 453 can be fine-tuned when needed, thereby improving the accuracy and consistency of imaging, and improving the clarity of the image and the accuracy of focusing.

[0051] 2. The scanning drive screw 35 is driven to rotate by the scanning drive motor 34, so that the scanning card block 412 and the scanning slider 413 are moved laterally, thereby realizing the scanning movement of the optical moving block 414, which is helpful to obtain high-quality scanning images or data. The coordinated work of the scanning card block 412, the scanning slider 413 and the optical moving block 414 ensures that the two imaging lenses 453 fully scan the machine-made sand 101 on the stage 3, which is very important for obtaining the morphological feature information of the machine-made sand 101 in one scan, avoiding missed scans or omissions. A certain angle is formed between the two imaging lenses 453, and the vertical decrease in the distance between the two imaging lenses 453 helps to optimize the imaging quality during the scanning process. The optimization of the angle and distance can reduce the aberration and distortion during imaging, increase the imaging capture area, and improve the clarity and accuracy of the image.

[0052] 3. By adjusting the position of the fill light 66, the appropriate light intensity is maintained to ensure the clarity of the image and the visibility of details. Especially when the external light is dim, the use of the fill light 66 can compensate for the lack of light so that the brightness of the image can be maintained. The up and down movement of the fill light 66 can adjust the position of the light source to avoid the light source of the fill light 66 moving a long distance following the optical moving block 414. The dynamic adjustment of the fill light 66 can effectively avoid imaging exposure or darkening caused by excessive or weak light. The position of the fill light 66 can be automatically adjusted according to the movement of the height adjustment slider 31 to ensure moderate lighting and avoid affecting the imaging quality.

[0053] All possible combinations of the various technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above-described embodiments only express several embodiments of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, multiple variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. An instrument for analyzing the morphology characteristics of machine-made sand, characterized in that: The invention comprises a control box (1), a control connection line (2), a height adjustment mechanism (20), a scanning motion mechanism (30), an optical measurement mechanism (40) and a stage (3), wherein one end of the control connection line (2) is connected to the control box (1), the height adjustment mechanism (20) is connected to the other end of the control connection line (2), the scanning motion mechanism (30) is slidably mounted on a side wall of the height adjustment mechanism (20), the optical measurement mechanism (40) comprises an optical moving component (41), an FPGA module (42), a short-wave laser (43), a linear laser lens group (44) and two detection imaging components (45), the optical moving component (41) is slidably mounted on a side wall of the scanning motion mechanism (30) away from the height adjustment mechanism (20), and an optical measuring device (40) is provided at the bottom of the optical moving component (41). The optical measurement cavity (411) is provided with an FPGA module (42) fixedly mounted on the top of the optical measurement cavity (411); a short-wave laser (43) is fixedly mounted in the middle of the optical measurement cavity (411), and the short-wave laser (43) is located below the FPGA module (42); a linear laser mirror group (44) is fixedly mounted on the bottom of the short-wave laser (43); a detection imaging component (45) is rotatably mounted on a side wall of the optical measurement cavity (411); the two detection imaging components (45) are symmetrically arranged, and the two detection imaging components (45) are respectively located on both sides of the linear laser mirror group (44); a stage (3) is fixedly mounted on the bottom of a side wall of a height adjustment mechanism (20) close to the height adjustment mechanism (20); and machine-made sand (101) to be analyzed is arranged on the top of the stage (3); The height adjustment mechanism (20) comprises a height adjustment body (21), a height adjustment motor (22) and a height adjustment screw (23); a height adjustment slot (211) is provided on a side wall of the height adjustment body (21); a height limit slot (212) is provided on a side wall of the height adjustment slot (211); a height motor slot (213) is provided in the height adjustment body (21), and the height motor slot (213) is located below the height adjustment slot (211); the height adjustment motor (22) is fixedly installed in the height motor slot (213), and an output shaft of the height adjustment motor (22) extends upward; two ends of the height adjustment screw (23) are rotatably installed on the top and bottom of the height adjustment slot (211), respectively, and the output shaft of the height adjustment motor (22) is fixedly connected to the bottom of the height adjustment screw (23); The scanning motion mechanism (30) comprises a height adjustment slider (31), a height adjustment card block (32), a scanning lifting block (33), a scanning drive motor (34) and a scanning drive screw (35); the height adjustment slider (31) is threadedly mounted on the side wall of the height adjustment screw (23), and the height adjustment slider (31) is slidably disposed on the side wall of the height adjustment slide groove (211); the height adjustment card block (32) is fixedly mounted on one side wall of the height adjustment slider (31), and the height adjustment card block (32) is slidably disposed on the side wall of the height limit card groove (212); the scanning lifting block (33) is fixedly mounted on the height adjustment slider (31); A scanning slot (331) is provided on a side wall of the slider (31) away from the height adjustment block (32); a scanning lifting block (33) is provided on a side wall away from the height adjustment body (21); a scanning card slot (332) is provided on a side wall of the scanning slot (331) close to the height adjustment body (21); a scanning drive motor (34) is fixedly mounted on one end of the scanning card slot (332); one end of the scanning drive screw (35) is rotatably mounted on one end of the scanning card slot (332) away from the scanning drive motor (34); and the other end of the scanning drive screw (35) is fixedly mounted on an output shaft of the scanning drive motor (34); Two fill-light assemblies (60) are arranged in the scanning lifting block (33), and the two fill-light assemblies (60) are symmetrically arranged. Two fill-light lifting grooves (333) are arranged at the bottom of the scanning lifting block (33), and a rack lifting groove (334) is arranged at the top of the fill-light lifting groove (333). A second gear groove (335) is arranged on the side walls of the two rack lifting grooves (334) on the side close to each other. First gear grooves (311) are arranged on the side walls of the height adjustment slider (31), and a plurality of linkage tooth grooves (214) are arranged on the side walls of the height adjustment slide (211), and the plurality of linkage tooth grooves (214) on the same side are arranged at equal distances in the vertical direction. The fill light assembly (60) comprises a fill light adjustment shaft (61), a driving gear (62), a driven gear (63), a fill light rack (64), a fill light slider (65) and a fill light lamp (66), one end of the fill light adjustment shaft (61) is rotatably mounted on a side wall of the second gear groove (335) away from the height adjustment body (21), and the other end of the fill light adjustment shaft (61) passes through the scanning lifting block (33) and the height adjustment slider (31) and extends into the first gear groove (311), the driving gear (62) is fixedly mounted on one end of the fill light adjustment shaft (61) away from the second gear groove (335), and the driving gear (62) is located in the first gear groove (311). 1), a driving gear (62) meshes with a corresponding plurality of linkage tooth grooves (214), a passive gear (63) is fixedly mounted on an end of the fill light adjustment shaft (61) away from the first gear groove (311), and the passive gear (63) is located in the second gear groove (335), a fill light rack (64) is slidably mounted on a side wall of the rack lifting groove (334), and the fill light rack (64) meshes with the passive gear (63), a fill light slider (65) is fixedly mounted on the bottom of the fill light rack (64), and the fill light slider (65) is slidably arranged on the side wall of the fill light lifting groove (333), and a fill light (66) is fixedly mounted on the bottom of the fill light slider (65).

2. The machine-made sand morphology characteristic analysis instrument according to claim 1 is characterized in that: The optical moving assembly (41) comprises a scanning card block (412), a scanning slide block (413) and an optical moving block (414); the scanning card block (412) is threadedly mounted on the side wall of the scanning driving screw rod (35), and the scanning card block (412) is slidably arranged on the side wall of the scanning card slot (332); the scanning slide block (413) is fixedly mounted on the side wall of the scanning card block (412) away from the height adjustment body (21), and the scanning slide block (413) is slidably arranged on the side wall of the scanning slide slot (331); the optical moving block (414) is fixedly mounted on the side wall of the scanning slide block (413) away from the scanning card block (412); and the optical measuring cavity (411) is opened at the bottom of the optical moving block (414).

3. The machine-made sand morphology characteristic analysis instrument according to claim 2 is characterized in that: The detection imaging component (45) comprises an adjustment connection shaft (451), an image sensor (452), an imaging lens (453), a short-wave filter (454) and a data line (455); the adjustment connection shaft (451) is rotatably mounted on a side wall of the optical measurement cavity (411); the image sensor (452) is fixedly mounted on one end of the adjustment connection shaft (451); the imaging lens (453) is fixedly mounted on the bottom of the image sensor (452); the short-wave filter (454) is fixedly mounted on the bottom of the imaging lens (453); two ends of the data line (455) are respectively mounted on the image sensor (452) and the FPGA module (42); and the distance between the two imaging lenses (453) gradually decreases in a vertical downward direction.

4. The machine-made sand morphology characteristic analysis instrument according to claim 3 is characterized in that: An angle adjustment component (50) is arranged in the optical moving block (414); an angle adjustment slot (415) is provided in the optical moving block (414); the angle adjustment slot (415) is located on a side of the optical measuring cavity (411) close to the height adjustment body (21); angle gear slots (416) are provided on opposite side walls of the angle adjustment slot (415); an end of the adjustment connecting shaft (451) away from the image sensor (452) extends into the angle gear slot (416); an angle motor slot (417) is also provided in the optical moving block (414); the angle motor slot (417) is located above the angle adjustment slot (415); and the angle adjustment component (50) is used to adjust the angles of the two imaging lenses (453).

5. The machine-made sand morphology characteristic analysis instrument according to claim 4 is characterized in that: The angle adjustment assembly (50) comprises an angle adjustment motor (51), an angle adjustment screw rod (52), an adjustment double-tooth plate (53), and two angle adjustment gears (54); the angle adjustment motor (51) is fixedly mounted on the side wall of the angle motor slot (417); the bottom of the angle adjustment screw rod (52) is rotatably mounted on the bottom of the angle adjustment slot (415); the top of the angle adjustment screw rod (52) extends upward and is fixedly connected to the output shaft of the angle adjustment motor (51); the adjustment double-tooth plate (53) is threadedly mounted on the side wall of the angle adjustment screw rod (52); the adjustment double-tooth plate (53) is slidably arranged on the side wall of the angle adjustment slot (415); the two angle adjustment gears (54) are respectively fixedly mounted on one end of the two adjustment connecting shafts (451) away from the image sensor (452); the two angle adjustment gears (54) are respectively located in the two angle gear slots (416); and the two angle adjustment gears (54) are respectively meshed with two sides of the adjustment double-tooth plate (53).

6. The machine-made sand morphology characteristic analysis instrument according to claim 5 is characterized in that: A lubrication receiving groove (215) is provided in the height adjustment body (21), a blocking groove (216) is provided on the top of the height adjustment body (21), and the blocking groove (216) is communicated with the lubrication receiving groove (215), a blocking block (71) is installed in the blocking groove (216), two lubrication through grooves (217) are provided at the bottom of one side wall of the lubrication receiving groove (215), a piston vertical groove (218) is provided at one end of the lubrication through groove (217) away from the lubrication receiving groove (215), a connecting vertical groove (219) is provided at the bottom of the piston vertical groove (218), and the bottom of the connecting vertical groove (219) is communicated with the height adjustment slide groove (211), an L-shaped dropper (72) is installed on the side wall of the piston vertical groove (218) away from the lubrication through groove (217), and one end of the L-shaped dropper (72) extends downward, and the L-shaped dropper (72) is connected to the height adjustment slide groove (211). 2) one end away from the height adjustment body (21) is located above the rack lifting groove (334), a piston slider (73) is slidably installed in the piston vertical groove (218), a piston holding rod (74) is fixedly installed at the bottom of the piston slider (73), and the piston holding rod (74) is slidably arranged on the side wall of the connecting vertical groove (219), the bottom of the piston holding rod (74) extends into the height adjustment slide groove (211), a reset spring (75) is fixedly installed at the bottom of the piston slider (73), and the bottom of the reset spring (75) is fixedly connected to the bottom of the piston vertical groove (218), the piston holding rod (74) is located on the inner side of the reset spring (75), a one-way valve is arranged in the lubrication groove (217) and the L-shaped dropper (72), and lubricant is arranged at the top of the lubrication receiving groove (215) and the piston vertical groove (218).

Images