Sensing instrument for measuring toughness of fiber metal laminated plate

Abstract

The invention relates to the technical field of material mechanical property testing, in particular to a fiber metal laminated plate toughness measurement sensing instrument which comprises a bottom frame, a mounting frame is arranged at the top of the bottom frame, fixing seats are mounted on the lower portions of the two sides of the mounting frame, and a fixing roller is rotatably mounted between the fixing seats. Sliding seats are slidably mounted on the upper portions of the two sides of the mounting frame, and a lifting roller is rotatably mounted between the sliding seats. A first motor is installed on the sliding seat on one side, an output shaft of the first motor is connected with a rotating shaft of the lifting roller, an electric push rod is installed on the top of the installation frame, a piston rod of the electric push rod is connected with the sliding seat on the same side, and a detection mechanism is arranged on the installation frame. According to the invention, automatic rolling and conveying, surface scrap cleaning, scrap mass weighing and fracture damage optical scanning detection of the laminated plate after bending pressure testing are integrated, so that full-process automation of toughness evaluation is realized, and comprehensiveness and accuracy of laminated plate testing are improved.

Description

Technical Field

[0001] This invention relates to the field of material mechanical property testing technology, specifically to a sensing instrument for measuring the toughness of fiber-reinforced metal laminates. Background Technology

[0002] Fiber-reinforced metal laminates are advanced hybrid composite materials made by alternating layers of thin metal sheets (such as aluminum alloys, magnesium alloys, or titanium alloys) and fiber-reinforced composite materials (such as aramid fibers, glass fibers, etc.). These materials combine the high toughness and good electrical and thermal conductivity of metals with the high specific strength, fatigue resistance, and impact resistance of fiber-reinforced composites, thus showing broad application prospects in aerospace, rail transportation, automotive manufacturing, and high-end protective equipment. To ensure their reliability and safety in practical engineering applications, accurately assessing the toughness of fiber-reinforced metal laminates is a crucial step in material performance testing.

[0003] Currently, conventional mechanical property testing largely relies on universal testing machines. Loads are applied through three- or four-point bending to obtain the material's load and displacement response during the stress process, thus indirectly reflecting its toughness level. However, existing toughness testing methods based on universal testing machines have several shortcomings: First, the testing methods can only provide macroscopic mechanical response data (such as pressure and overall bending deformation), and cannot perform real-time, accurate detection and quantification of microscopic damage inside or on the surface of the bending area of ​​the specimen, leading to biases in the assessment of the material's true toughness. Second, when a specimen fractures, the resulting debris or spalling material usually remains attached to the specimen or is scattered on the test platform. Existing equipment lacks a corresponding debris collection and weighing mechanism, making it difficult to further quantify the degree of material damage through parameters such as mass loss. This makes it difficult for traditional testing methods to comprehensively and objectively reflect the damage evolution behavior and toughness characteristics of fiber-reinforced metal laminates under complex loads. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a sensor for measuring the toughness of fiber-reinforced metal laminates.

[0005] The technical implementation of this invention is as follows: A sensor for measuring the toughness of fiber-reinforced metal laminates includes a base frame, a mounting frame, a fixed roller, and a lifting roller. The mounting frame is fixedly mounted on the top of the base frame. Fixed seats are fixedly mounted on the lower parts of both sides of the mounting frame. A fixed roller is rotatably mounted between the two fixed seats. Sliding seats are slidably mounted on the upper parts of both sides of the mounting frame. A lifting roller is rotatably mounted between the two sliding seats. The lifting roller and the fixed roller cooperate to roll-press and convey the laminate after bending pressure testing. The invention also includes a first motor and an electric push rod. The first motor is mounted on one of the sliding seats, and the output shaft of the first motor is connected to the rotating shaft of the lifting roller. Electric push rods are fixedly mounted on the top of both sides of the mounting frame. The electric push rods... The stopper rod is connected to the sliding seat on the same side. The mounting frame is equipped with a detection mechanism for detecting the laminate. The detection mechanism includes a mounting plate, an annular guide frame, an optical scanning module, and a toothed belt. The mounting plate is fixedly connected to the mounting frame. An annular guide frame is fixedly installed at the bottom of the mounting plate. A guide groove is opened on the inner side of the annular guide frame. The optical scanning module is slidably installed in the guide groove of the annular guide frame. A driving component for driving the optical scanning module is installed on the mounting plate. A scraping mechanism is installed on the side of the mounting frame away from the detection mechanism. The scraping mechanism is used to scrape off the debris or spalling material on the surface of the bent laminate after it breaks. A weighing component is installed on the bottom frame near the scraping mechanism. The weighing component is used to weigh the mass of the laminate production debris or spalling material during the toughness test.

[0006] Optionally, a toothed belt is rotatably mounted on one side of the annular guide frame, and a toothed groove is provided around the periphery of the toothed belt. The toothed belt is connected to the optical scanning module. The driving component consists of a second motor and gears. The second motor is symmetrically fixedly mounted on both sides of the mounting plate. A gear is fixedly connected to the output shaft of the second motor. The gear and the toothed groove on the toothed belt mesh with each other. The second motor drives the toothed belt to rotate through gear meshing. The rotation of the toothed belt will drive the optical scanning module to slide along the guide groove of the annular guide frame, so that the optical scanning module can perform a full scan of the laminate.

[0007] Optionally, the chip scraping mechanism includes an upper baffle frame, a chip guide hopper, and a scraper. The upper baffle frame is fixedly connected between two sliding seats on both sides. The upper baffle frame is located on the side of the mounting frame away from the detection mechanism. A chip guide hopper is fixedly installed on the side of the mounting frame near the upper baffle frame. The chip guide hopper is located directly below the upper baffle frame. A gap is provided between the upper baffle frame and the chip guide hopper for the laminate to pass through. A scraper is installed between the upper baffle frame and the chip guide hopper. The scraper is used to scrape off debris or flaking material from the surface of the laminate.

[0008] Optionally, the weighing component includes a fixing block, a weighing instrument, and a material cylinder. The fixing block is located on the bottom frame near the chip guide hopper, and the weighing instrument is fixedly mounted on the fixing block. The material cylinder for collecting debris or flaking is placed on the weighing instrument. The discharge port at the bottom of the chip guide hopper guides the material cylinder. The weighing pan of the weighing instrument is equipped with a limiting component for stabilizing and limiting the material cylinder. The material cylinder collects the debris or flaking that falls off the laminate during the toughness bending test. The material cylinder is then placed on the weighing instrument and limited by the limiting component. When the laminate passes through the scraping mechanism, the scraper scrapes off the debris or flaking from the surface of the laminate. The scraped debris or flaking falls into the material cylinder. Finally, the total mass of the debris or flaking from the laminate is weighed using the weighing instrument, providing an important indicator for subsequent evaluation of the material's damage tolerance and safety.

[0009] Optionally, a vibration motor is fixedly installed on the outer wall of the chip guide hopper. The vibration motor is used to vibrate the chip guide hopper at high frequency so that the debris or flaking material attached to the inner wall of the chip guide hopper can fall into the material cylinder for weighing.

[0010] Optionally, the limiting component includes a positioning block, a guide block, a limiting block, and a first spring. A positioning block adapted to the material cylinder is fixedly provided on one side of the weighing pan of the weighing instrument, and a guide block is fixedly provided on the other side of the weighing pan of the weighing instrument. A limiting block is slidably connected to the guide block, and a first spring is provided between the guide block and the limiting block. The material cylinder placed on the weighing instrument will be clamped and fixed by the positioning block and the limiting block under the elastic force of the first spring, so that the material cylinder can be weighed stably on the weighing instrument and the accuracy of the weighing data can be improved.

[0011] Optionally, a push-pull mechanism is slidably provided on the bottom frame. The push-pull mechanism is used to unlock the weighing component's limit on the material cylinder. The push-pull mechanism includes a mounting block, a guide rod, a push frame, and a second spring. The mounting block is fixedly provided on the bottom plate inside the bottom frame. The guide rod is fixedly connected to the mounting block. The push frame is slidably connected to the guide rod. The second spring is provided between the push frame and the mounting block. One end of the push frame is close to and used to push the limit block.

[0012] Optionally, a triangular plate is provided at one end of the push frame near the first motor, and the inclined surface of the triangular plate slides in contact with the sliding seat. When the electric push rod drives the sliding seat and the lifting roller to lift for feeding, the sliding seat moves upward and presses against the inclined surface of the triangular plate, causing the push frame to slide along the guide rod against the elastic force of the second spring, thereby pushing the limiting block and releasing the locking of the material cylinder. When the electric push rod drives the sliding seat and the lifting roller to descend for scanning the laminate, the sliding seat moves downward and disengages from the triangular plate, and the push frame resets under the action of the second spring, no longer pushing the limiting block, thereby relocking the material cylinder by the limiting block.

[0013] The present invention has the following advantages:

[0014] 1. This invention integrates automatic roller conveying of laminates after bending pressure testing, surface debris cleaning, debris mass weighing, and optical scanning detection of fracture damage into one unit, realizing full automation of the toughness assessment process and improving the comprehensiveness and accuracy of laminate testing.

[0015] 2. The present invention uses electric push rods on both sides to synchronously drive the sliding seat to rise and fall, which can flexibly and accurately adjust the distance between the fixed roller and the lifting roller according to the thickness of the laminate, ensuring stable clamping and uniform roller pressure for samples of different specifications, and avoiding slippage or damage during the test.

[0016] 3. The present invention is equipped with a scraping mechanism to effectively scrape off surface debris or flaking material during the transmission of the laminate. It works in conjunction with a chip guide hopper with a vibrating motor to prevent debris from adhering and ensure that all debris falls into the material cylinder. The mass of the flaking material is quantitatively measured by a high-precision weighing instrument, providing key data support for assessing the material damage tolerance and safety. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a schematic diagram of the base frame, mounting bracket, fixed roller, lifting roller, and detection mechanism of the present invention.

[0019] Figure 3 This diagram shows the connection relationship between the mounting frame, fixed roller, lifting roller, and electric push rod of the present invention.

[0020] Figure 4 This diagram shows the connection relationship between the mounting plate, the annular guide frame, the optical scanning module, and the toothed belt of this invention.

[0021] Figure 5 This is a schematic diagram showing the relationship between the mounting frame, upper baffle, chip guide hopper, and weighing component of the present invention.

[0022] Figure 6 This is a three-dimensional structural diagram of the upper baffle, chip guide hopper, scraper, and vibrating motor of the present invention.

[0023] Figure 7 This is a diagram showing the specific fit between the weighing component and the limiting component of this invention.

[0024] Figure 8 This is a diagram showing the positional relationship between the bottom frame, sliding seat, limiting block, and push frame of the present invention.

[0025] Figure 9 This is a diagram showing the connection relationships of specific components of the push-pull mechanism of the present invention.

[0026] The meanings of the reference numerals in the figure are as follows: 100: laminated plate, 1: base frame, 2: mounting frame, 3: fixed roller, 31: fixed seat, 4: lifting roller, 41: sliding seat, 42: first motor, 5: electric push rod, 6: detection mechanism, 61: mounting plate, 62: annular guide frame, 63: optical scanning module, 64: toothed belt, 7: driving component, 71: second motor, 72: gear, 8: chip scraping mechanism, 81: upper baffle, 82: chip guide hopper, 83: scraper, 9: weighing component, 91: fixed block, 92: weighing instrument, 93: material cylinder, 10: vibrating motor, 11: limiting component, 111: positioning block, 112: guide block, 113: limiting block, 114: first spring, 12: push-pull mechanism, 121: mounting block, 122: guide rod, 123: push frame, 124: second spring, 125: triangular plate. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. It is hereby declared that the directional terms such as up, down, left, right, front, back, inside, and outside used in this text are based solely on the accompanying drawings and are not intended to specifically limit the invention.

[0028] A sensor instrument for measuring the toughness of fiber-reinforced metal laminates, such as... Figures 1-5 As shown, the system includes a base frame 1, a mounting bracket 2, a fixed roller 3, and a lifting roller 4. The mounting bracket 2 is fixedly mounted on the top of the base frame 1. Fixed seats 31 are fixedly mounted on the lower parts of both sides of the mounting bracket 2. A fixed roller 3 is rotatably mounted between the two fixed seats 31. Sliding seats 41 are slidably mounted on the upper parts of both sides of the mounting bracket 2. A lifting roller 4 is rotatably mounted between the two sliding seats 41. The lifting roller 4 and the fixed roller 3 cooperate to roll-press and convey the laminate 100 that has undergone bending pressure testing. The system also includes a first motor 42 and an electric push rod 5. The first motor 42 is mounted on one side of the sliding seat 41, and the output shaft of the first motor 42 is connected to the rotating shaft of the lifting roller 4. Electric push rods 5 are fixedly mounted on the top of both sides of the mounting bracket 2. The piston rod of the electric push rod 5 is connected to the sliding seat 41 on the same side. The mounting bracket 2 is equipped with… A detection mechanism 6 is provided for detecting the laminate 100. The detection mechanism 6 includes a mounting plate 61, an annular guide frame 62, an optical scanning module 63, and a toothed belt 64. The mounting plate 61 is fixedly connected to the mounting frame 2. The annular guide frame 62 is fixedly installed at the bottom of the mounting plate 61. A guide groove is opened on the inner side of the annular guide frame 62. The optical scanning module 63 is slidably installed in the guide groove of the annular guide frame 62. A driving component 7 for driving the optical scanning module 63 is provided on the mounting plate 61. A scraping mechanism 8 is provided on the side of the mounting frame 2 away from the detection mechanism 6. The scraping mechanism 8 is used to scrape off the debris or peeling material on the surface of the bent laminate 100 after it breaks. A weighing component 9 is provided on the side of the bottom frame 1 near the scraping mechanism 8. The weighing component 9 is used to weigh the mass of the debris or peeling material produced by the laminate 100 during the toughness test.

[0029] like Figure 3 and Figure 4 As shown, a toothed belt 64 is rotatably mounted on one side of the annular guide frame 62. A toothed groove is provided around the toothed belt 64. The toothed belt 64 is connected to the optical scanning module 63. The driving component 7 consists of a second motor 71 and a gear 72. The second motor 71 is symmetrically fixedly mounted on both sides of the mounting plate 61. The gear 72 is fixedly connected to the output shaft of the second motor 71. The gear 72 and the toothed groove on the toothed belt 64 mesh with each other.

[0030] The second motor 71 drives the toothed belt 64 to rotate through the meshing of the gear 72. The rotation of the toothed belt 64 will drive the optical scanning module 63 to slide along the guide groove of the annular guide frame 62, so that the optical scanning module 63 can perform a full scan of the laminate 100.

[0031] like Figure 1 , Figure 5 and Figure 6 As shown, the chip scraping mechanism 8 includes an upper baffle 81, a chip guide hopper 82, and a scraper 83. The upper baffle 81 is fixedly connected between the two sliding seats 41. The upper baffle 81 is located on the side of the mounting frame 2 away from the detection mechanism 6. The chip guide hopper 82 is fixedly installed on the side of the mounting frame 2 near the upper baffle 81. The chip guide hopper 82 is located directly below the upper baffle 81. A gap is provided between the upper baffle 81 and the chip guide hopper 82 for the laminate 100 to pass through. The scraper 83 is provided between the upper baffle 81 and the chip guide hopper 82. The scraper 83 is used to scrape off the debris or peeling material on the surface of the laminate 100.

[0032] like Figure 5 and Figure 7 As shown, the weighing component 9 includes a fixing block 91, a weighing instrument 92, and a material cylinder 93. The fixing block 91 is provided on the side of the bottom frame 1 near the chip guide hopper 82. The weighing instrument 92 is fixedly installed on the fixing block 91. The material cylinder 93, which collects debris or flaking material, is placed on the weighing instrument 92. The discharge port at the bottom of the chip guide hopper 82 guides the material cylinder 93. The weighing pan of the weighing instrument 92 is provided with a limiting component 11 for stabilizing and limiting the material cylinder 93.

[0033] The material barrel 93 collects the debris or flaking material that falls off the laminate 100 during the toughness and bending test. The material barrel 93 is then placed on the weighing instrument 92 and limited by the limiting member 11. When the laminate 100 passes through the scraping mechanism 8, the scraper 83 scrapes off the debris or flaking material on the surface of the laminate 100. The scraped debris or flaking material will fall into the material barrel 93. Finally, the total mass of the debris or flaking material that fell off the laminate 100 is weighed by the weighing instrument 92. This provides an important indicator for the subsequent evaluation of the material's damage tolerance and safety.

[0034] like Figure 5 and Figure 6As shown, a vibration motor 10 is fixedly installed on the outer wall of the chip guide hopper 82. The vibration motor 10 is used to vibrate the chip guide hopper 82 at high frequency so that the debris or flaking material attached to the inner wall of the chip guide hopper 82 can fall into the material cylinder 93 for weighing.

[0035] When using this measuring sensor, first remove the barrel 93 from the weighing instrument 92, then use the barrel 93 to collect the debris that fell off the laminate 100 due to breakage during the bending pressure test. After collection, put the barrel 93 back onto the weighing instrument 92. Then, based on the thickness of the laminate 100 sample that has completed the bending pressure test and has broken, control and start the electric push rod 5. The electric push rod 5 synchronously drives the sliding seats 41 on both sides to rise synchronously, thereby widening the gap between the lifting roller 4 and the fixed roller 3. Then, put the sample laminate 100 into the scraping mechanism 8 from one side, so that the sample laminate 100 passes through the cleaning channel formed by the upper baffle 81 and the chip guide hopper 82, and is initially placed on the fixed roller 3. Subsequently, control the electric push rod 5 to drive the sliding seat 41 to descend, so that the lifting roller 4 presses down smoothly, precisely pressing the sample between the fixed roller 3 and the lifting roller 4, forming a stable clamping and conveying state. Then, start the first motor 42, which drives the lifting roller 4 to rotate actively. The lifting roller 4 drives the sample laminate... The plate 100 is transported at a constant speed toward the detection mechanism 6 on the other side of the mounting frame 2. During the sample transport process, the scraper 83 between the baffle frame and the chip guide hopper 82 continuously scrapes the surface of the sample laminate 100, removing the debris or fiber flakes generated during the bending and fracture of the sample laminate 100 that have not completely fallen off. The scraped debris is collected by gravity through the inclined surface of the chip guide hopper 82 and finally falls through the discharge port at the bottom of the chip guide hopper 82 into the material cylinder that has been pre-placed on the weighing pan of the weighing instrument 92. Within 93, to ensure complete debris collection, the vibration motor 10 installed on the outer wall of the chip guide hopper 82 can be activated to shake off the fine debris attached to the inner wall through high-frequency micro-vibration. At the same time, the front end of the sample laminate 100 is smoothly conveyed by rollers through the inner ring space of the annular guide frame 62 until the fracture damage area of ​​the sample laminate 100 is completely located at the central scanning position of the annular guide frame 62. Then, the first motor 42 stops running, ready to measure the fracture section of the sample laminate 100.

[0036] like Figure 5 and Figure 7 As shown, the limiting component 11 includes a positioning block 111, a guide block 112, a limiting block 113, and a first spring 114. A positioning block 111 adapted to the material cylinder 93 is fixedly provided on one side of the weighing pan of the weighing instrument 92, and a guide block 112 is fixedly provided on the other side of the weighing pan of the weighing instrument 92. A limiting block 113 is slidably connected on the guide block 112, and a first spring 114 is provided between the guide block 112 and the limiting block 113.

[0037] The material cylinder 93 placed on the weighing instrument 92 will be clamped and fixed by the positioning block 111 and the limiting block 113 under the elastic force of the first spring 114, so that the material cylinder 93 can be weighed stably on the weighing instrument 92 and the accuracy of the weighing data can be improved.

[0038] like Figure 1 , Figure 8 and Figure 9 As shown, a push-pull mechanism 12 is slidably arranged on the bottom frame 1. The push-pull mechanism 12 is used to unlock the weighing component 9 from limiting the material cylinder 93. The push-pull mechanism 12 includes a mounting block 121, a guide rod 122, a push frame 123, and a second spring 124. The mounting block 121 is fixedly arranged on the bottom plate inside the bottom frame 1. The guide rod 122 is fixedly connected to the mounting block 121. The push frame 123 is slidably connected to the guide rod 122. The second spring 124 is arranged between the push frame 123 and the mounting block 121. One end of the push frame 123 is close to and used to push the limiting block 113.

[0039] like Figure 8 and Figure 9 As shown, a triangular plate 125 is provided at one end of the push frame 123 near the first motor 42, and the inclined surface of the triangular plate 125 slides in contact with the sliding seat 41.

[0040] When the electric push rod 5 drives the sliding seat 41 and the lifting roller 4 to lift for feeding, the sliding seat 41 moves upward to press the inclined surface of the triangular plate 125, causing the push frame 123 to slide along the guide rod 122 against the elastic force of the second spring 124, thereby pushing the limiting block 113 and releasing the locking of the material cylinder 93; when the electric push rod 5 drives the sliding seat 41 and the lifting roller 4 to descend to transfer the laminate 100 for scanning, the sliding seat 41 moves downward to disengage from the triangular plate 125, and the push frame 123 resets under the action of the second spring 124, no longer pushing the limiting block 113, thereby relocking the material cylinder 93 by the limiting block 113.

[0041] When the sample laminate 100 stops being conveyed and the fractured section aligns with the annular guide frame 62, the second motor 71 is started. The gear 72 on the output shaft of the second motor 71 rotates accordingly. Through the meshing of the gear 72 with the toothed groove of the toothed belt 64, the entire toothed belt 64 is driven to move along the trajectory of the annular guide frame 62. Since the optical scanning module 63 is fixed to the toothed belt 64 and slidably embedded in the guide groove of the annular guide frame 62, it is driven by the toothed belt 64 to perform a uniform circumferential scan around the stationary fractured section of the sample, thereby completely acquiring the panoramic three-dimensional morphology or high-resolution image data of the fracture surface. At the same time, the operator reads the total mass data of the debris displayed on the weighing instrument 92. The mass data is combined with the fracture morphology data acquired by the optical scanning module 63 to jointly constitute the evaluation of the sample. The key quantitative indicators of toughness, damage evolution behavior and damage tolerance of fiber metal laminate 100 are scanned. After the second motor 71 stops, the electric push rod 5 is controlled again to lift the sliding seat 41 and the lifting roller 4 to release the sample. At this time, the rising sliding seat 41 will squeeze the inclined surface of the triangular plate 125 connected to the end of the push frame 123 of the push-pull mechanism 12, forcing the push frame 123 to slide along the guide rod 122 towards the mounting block 121 and compress the second spring 124. The far end of the push frame 123 will push the limiting block 113 on the weighing pan of the weighing instrument 92, so that the limiting block 113 slides along the guide block 112 and compresses the first spring 114, thereby releasing the lateral clamping force on the material cylinder 93. At this time, the operator can easily take out the weighed material cylinder 93.

[0042] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A sensor for measuring the toughness of fiber-metal laminate, comprising a base frame (1), a mounting frame (2) fixedly mounted on the base frame (1), fixed seats (31) fixedly connected to the lower parts of both sides of the mounting frame (2), a fixed roller (3) rotatably mounted between the fixed seats (31), and sliding seats (41) slidably connected to the upper parts of both sides of the mounting frame (2), and a lifting roller (4) rotatably mounted between the sliding seats (41). Its characteristics are, A first motor (42) is installed on one side of the sliding seat (41). The output shaft of the first motor (42) is connected to the rotating shaft of the lifting roller (4). An electric push rod (5) is installed on the top of the mounting frame (2). The piston rod of the electric push rod (5) is connected to the sliding seat (41) on the same side. A detection mechanism (6) is provided on the mounting frame (2). The detection mechanism (6) includes a mounting plate (61), an annular guide frame (62), an optical scanning module (63), and a toothed belt (64). The mounting plate (61) is fixedly connected to the mounting bracket (2). The annular guide frame (62) is fixedly provided at the bottom of the mounting plate (61). A guide groove is provided on the inner side of the annular guide frame (62). The optical scanning module (63) is slidably arranged in the guide groove of the annular guide frame (62). A driving component (7) for driving the optical scanning module (63) is provided on the mounting plate (61). The mounting frame (2) is provided with a scraping mechanism (8) on one side. The scraping mechanism (8) is used to scrape off the debris or peeling material on the surface of the bent laminate (100) after it breaks. The bottom frame (1) is provided with a weighing component (9) on the side near the scraping mechanism (8).

2. The fiber-reinforced metal laminate toughness measuring sensor according to claim 1, characterized in that, A toothed belt (64) is rotatably provided on one side of the annular guide frame (62). A toothed groove is provided around the periphery of the toothed belt (64). The toothed belt (64) is connected to the optical scanning module (63). The driving component (7) is composed of a second motor (71) and a gear (72). The second motor (71) is symmetrically fixedly installed on both sides of the mounting plate (61). A gear (72) is fixedly connected to the output shaft of the second motor (71). The toothed groove on the gear (72) meshes with the toothed belt (64).

3. The fiber-reinforced metal laminate toughness measuring sensor according to claim 1, characterized in that, The chip scraping mechanism (8) includes an upper baffle (81), a chip guide hopper (82), and a scraper (83). The upper baffle (81) is fixedly connected between two sliding seats (41). The upper baffle (81) is located on the side of the mounting frame (2) away from the detection mechanism (6). The mounting frame (2) is fixedly provided with a chip guide hopper (82) on the side close to the upper baffle (81). The chip guide hopper (82) is located directly below the upper baffle (81). A gap is provided between the upper baffle (81) and the chip guide hopper (82) for the laminate (100) to pass through. A scraper (83) is provided between the upper baffle (81) and the chip guide hopper (82).

4. The fiber-reinforced metal laminate toughness measuring sensor according to claim 1, characterized in that, The weighing component (9) includes a fixing block (91), a weighing instrument (92), and a material cylinder (93). The fixing block (91) is provided on the side of the bottom frame (1) near the chip guide hopper (82). The weighing instrument (92) is fixedly installed on the fixing block (91). The material cylinder (93) is placed on the weighing instrument (92). The discharge port at the bottom of the chip guide hopper (82) guides the material cylinder (93). The weighing pan of the weighing instrument (92) is provided with a limiting component (11) for stabilizing and limiting the material cylinder (93).

5. A fiber-reinforced metal laminate toughness measuring sensor according to claim 3, characterized in that, A vibration motor (10) is fixedly installed on the outer wall of the chip guide bucket (82).

6. A fiber-reinforced metal laminate toughness measuring sensor according to claim 4, characterized in that, The limiting component (11) includes a positioning block (111), a guide block (112), a limiting block (113), and a first spring (114). The weighing pan of the weighing instrument (92) is fixedly provided with a positioning block (111) adapted to the material cylinder (93) on one side, and a guide block (112) is fixedly provided on the other side of the weighing pan of the weighing instrument (92). The limiting block (113) is slidably connected on the guide block (112), and the first spring (114) is provided between the guide block (112) and the limiting block (113).

7. A fiber-reinforced metal laminate toughness testing sensor according to claim 1, characterized in that, A push-pull mechanism (12) is slidably provided on the bottom frame (1). The push-pull mechanism (12) is used to unlock the weighing component (9) from limiting the material cylinder (93). The push-pull mechanism (12) includes a mounting block (121), a guide rod (122), a push frame (123), and a second spring (124). The mounting block (121) is fixedly provided on the bottom plate inside the bottom frame (1). The guide rod (122) is fixedly connected to the mounting block (121). The push frame (123) is slidably connected to the guide rod (122). A second spring (124) is provided between the push frame (123) and the mounting block (121). One end of the push frame (123) is close to and used to push the limiting block (113).

8. A fiber-reinforced metal laminate toughness testing sensor according to claim 7, characterized in that, A triangular plate (125) is provided at one end of the push frame (123) near the first motor (42), and the inclined surface of the triangular plate (125) slides in contact with the sliding seat (41).

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