A device for detecting internal and external defects of metal materials

Abstract

The present invention discloses a device for detecting internal and external defects of metal materials, which belongs to the technical field of detection equipment; it includes a base plate, a cover, a clamping mechanism, a conveying mechanism and a detection mechanism; the clamping mechanism is installed on the conveying mechanism, and the clamping mechanism includes two symmetrically arranged clamping arms, each of the clamping arms is provided with two symmetrically arranged clamping rods, and a suction cup is fixedly installed on the clamping rod, and the suction cup is used to clamp the metal material. The conveying mechanism is movably installed on the base plate, and the conveying mechanism is used to drive the clamping mechanism and the metal material to be detected to move. The detection mechanism is installed on the base plate, and the detection mechanism includes a transmitter and a receiver, and the transmitter and the receiver are used to detect the metal material. The present invention automatically completes the detection of internal and external defects of metal materials through the clamping mechanism, the conveying mechanism and the detection mechanism, and has a simple structure and convenient operation.

Description

Technical Field

[0001] The invention belongs to the technical field of detection equipment, and in particular relates to a device for detecting internal and external defects of metal materials. Background Art

[0002] In today's manufacturing and engineering fields, quality control of metal materials is crucial. Defects in metal materials not only affect their mechanical properties, corrosion resistance and fatigue strength, but may also cause serious safety accidents during use. Therefore, how to accurately and efficiently detect internal and external defects in metal materials has become a hot issue of concern in the industry.

[0003] Traditional metal material defect detection methods mainly include ultrasonic testing, X-ray testing, magnetic particle testing, and liquid penetrant testing. These methods have their own advantages and disadvantages, but most technologies can only target defects in specific directions or specific types, making it difficult to achieve comprehensive and three-dimensional detection. For example, ultrasonic testing usually focuses on the detection of internal defects, while surface defects may be overlooked. In addition, many traditional methods require high professional skills of operators, and the detection process is also cumbersome, resulting in low detection efficiency.

[0004] With the rise of Industry 4.0 and smart manufacturing, detection technology urgently needs to be combined with advanced information technology and intelligent technology. Multi-directional detection technology has emerged to provide more comprehensive and accurate defect information. The core of this technology is to monitor and analyze metal materials in real time from different angles through a variety of sensors and detection methods. Through the comprehensive use of optical imaging, laser scanning, infrared detection and other means, it can effectively identify various defects such as tiny cracks, pores, inclusions, etc. in the material, thereby improving the sensitivity and reliability of defect detection.

[0005] At present, although there are some multi-directional detection equipment on the market, they generally have problems such as high cost, complex equipment, and limited scope of application. Therefore, the development of a new type of metal material internal and external defect detection device can reduce equipment costs and improve ease of use while ensuring detection accuracy, which has broad application prospects and market demand. Summary of the invention

[0006] In view of the above technical problems, the technical solution adopted by the present invention is: a metal material internal and external defect detection device, including a base plate, a cover; also includes a clamping mechanism, a conveying mechanism and a detection mechanism; the cover is fixedly mounted on the base plate.

[0007] The clamping mechanism is installed on the conveying mechanism, and the clamping mechanism includes two symmetrically arranged clamping arms, each of the clamping arms is provided with two symmetrically arranged clamping rods, and a suction cup is fixedly installed on the clamping rod, and the suction cup is used to clamp the metal material.

[0008] The conveying mechanism is movably mounted on the bottom plate, and is used to drive the clamping mechanism and the metal material to be detected to move.

[0009] The detection mechanism is installed on the bottom plate, and comprises a transmitter and a receiver, and the transmitter and the receiver are used for detecting metal materials.

[0010] Furthermore, a clamping motor is fixedly installed on the clamping arm, and a cylindrical gear is fixedly connected to the output shaft of the clamping motor. The cylindrical gear meshes with an incomplete gear rotatably installed on the clamping arm, and the incomplete gear meshes with a driving gear fixedly installed on the central shaft. The central shaft is rotatably installed on the clamping arm, and both ends of the central shaft are respectively connected to one end of two rotating rods one through universal joints, and the other end of the rotating rod one is connected to one end of the rotating rod two through a universal joint, and a bevel gear one is fixedly installed on the other end of the rotating rod two, and the bevel gear one meshes with a bevel gear two rotatably installed on the clamping arm, and the bevel gear two forms a spline with the clamping rod, and a reset spring one is arranged between the bevel gear two and the clamping rod, and the rotating rod one and the rotating rod two are rotatably installed on the clamping arm.

[0011] Furthermore, the clamping mechanism also includes a middle block, both sides of the middle block are fixedly connected to the two clamping arms respectively, and the middle block is connected to the conveying mechanism.

[0012] Furthermore, the conveying mechanism includes a conveying frame, a one-way rack and four linearly arranged guide rails, the guide rails are fixedly mounted on the base plate, the conveying frame slides with the guide rails, a rotating shaft is rotatably mounted on the conveying frame, one end of the rotating shaft is fixedly connected to the middle block, the other end of the rotating shaft is fixedly connected to the one-way gear, the one-way rack slides with the stop block, and a reset spring 2 is arranged between the one-way rack and the stop block, and when the one-way gear contacts the one-way rack, the one-way gear and the one-way rack form a ratchet pawl cooperation.

[0013] Furthermore, the conveying mechanism also includes a double-axis motor fixedly mounted on the conveying frame, and one end of a belt assembly is respectively connected to the output shafts at both ends of the double-axis motor, and the other end of the belt assembly is connected to a conveying gear rotatably mounted on the conveying frame, and the conveying gear is meshed with a conveying rack fixedly mounted on the base plate.

[0014] Furthermore, the detection mechanism also includes a transposition frame, on which two symmetrically arranged sliding frames are slidably mounted, and a bidirectional lead screw is rotatably mounted on the sliding frame, and the bidirectional lead screw is threadedly engaged with the slider, one slider is fixedly connected to the receiver, and the other slider is fixedly connected to the transmitter, and each of the bidirectional lead screws is fixedly mounted with a bevel gear six, and the bevel gear six is ​​meshed with the bevel gear five, and the bevel gear five is rotatably mounted on a connecting plate, and the connecting plate is fixedly connected to the protruding end of the cylinder, and the connecting plate is connected to the sliding frame, and the cylinder is fixedly mounted on the transposition frame.

[0015] Furthermore, the detection mechanism also includes a spline shaft rotatably mounted on the transposition frame, the two ends of the spline shaft respectively form a spline fit with two bevel gears five, and a bevel gear four is fixedly mounted on the spline shaft, the bevel gear four is meshingly matched with the bevel gear three, and the bevel gear three is connected to a power source.

[0016] Furthermore, the power source includes a detection motor fixedly installed inside the protective cover, the protective cover is fixedly installed on the base plate, one end of the belt assembly 2 is connected to the output shaft of the detection motor, the other end of the belt assembly 2 is connected to a worm rotatably installed on the protective cover, the worm is meshed with the worm wheel, the worm wheel is fixedly connected to the transmission shaft, the transmission shaft is rotatably installed on the protective cover, the bevel gear 3 is fixedly connected to the transmission shaft, and the transposition frame is fixedly connected to the transmission shaft.

[0017] Furthermore, the detection mechanism also includes an upper baffle and a lower baffle that are symmetrically arranged, and the upper baffle and the lower baffle are slidably matched with the cover, and the two sides of the upper baffle and the lower baffle are respectively threadedly matched with two double-headed threaded rods, and the two ends of the double-headed threaded rod are provided with threads with opposite rotation directions. The cylinder is rotatably mounted on the base plate, and the two double-headed threaded rods are connected by a belt assembly, and one double-headed threaded rod is connected to the opening and closing motor.

[0018] Compared with the prior art, the present invention has the following advantages: (1) The present invention automatically detects internal and external defects of metal materials through a clamping mechanism, a conveying mechanism and a detection mechanism, and has a simple structure and is easy to operate; (2) When the metal material is detected by the detection mechanism, the metal material can be detected in all directions through the horizontal movement and rotational movement of the transmitter and the receiver, thereby improving the detection efficiency and accuracy; (3) When the metal material is detected, the clamping rod can be controlled to rotate through the clamping motor so that the opening of the metal material is facing the transmitter, thereby completing the detection of the inside of the metal material. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 for Figure 1 Schematic diagram of the remaining structures after omitting the cover.

[0021] Figure 3 It is a schematic diagram of the clamping mechanism structure.

[0022] Figure 4 It is a partial cross-sectional view of the clamping structure.

[0023] Figure 5 for Figure 4 Schematic diagram of the local enlarged structure at point A in the middle.

[0024] Figure 6 for Figure 4 Schematic diagram of the local enlarged structure at point B in the middle.

[0025] Figure 7 It is a schematic diagram of the conveying mechanism structure.

[0026] Figure 8 for Figure 7 Schematic diagram of the partial enlarged structure at point C in the middle.

[0027] Fig. 9 for Figure 7 Schematic diagram of the local enlarged structure at point D in the middle.

[0028] Fig.10 This is a schematic diagram of the remaining structure of the detection mechanism after omitting the protective cover.

[0029] Fig.11 Schematic diagram of the partial structure of the detection mechanism Figure 1 .

[0030] Fig.12 for Fig.11 Schematic diagram of the local enlarged structure at point E in the middle.

[0031] Fig.13 Schematic diagram of the partial structure of the detection mechanism Figure 2 .

[0032] Figure numerals: 1-base plate; 2-cover; 3-clamping mechanism; 301-middle block; 302-clamping arm; 303-clamping motor; 304-incomplete gear; 305-driving gear; 306-central axis; 307-rotating rod one; 308-rotating rod two; 309-bevel gear one; 310-bevel gear two; 311-clamping rod; 312-reset spring one; 313-suction cup; 4-conveying mechanism; 401-conveying frame; 402-rotating shaft; 403-dual-axis motor; 404-belt assembly one; 405-conveying gear; 406-conveying rack; 407-guide rail; 408-one-way gear; 409-one-way Rack; 410-block; 411-reset spring 2; 5-detection mechanism; 501-protection cover; 502-detection motor; 503-belt assembly 2; 504-worm; 505-worm wheel; 506-bevel gear 3; 507-bevel gear 4; 508-spline shaft; 509-transposition rack; 510-transmitter; 511-receiver; 512-cylinder; 513-connecting plate; 514-bevel gear 5; 515-bevel gear 6; 516-bidirectional lead screw; 517-slider; 518-upper baffle; 519-lower baffle; 520-opening and closing motor; 521-double-headed threaded rod; 522-belt assembly 3. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example: Figure 1 — Fig.13 The device for detecting internal and external defects of metal materials shown in the figure comprises a base plate 1 and a cover 2; further comprising a clamping mechanism 3, a conveying mechanism 4 and a detecting mechanism 5; the cover 2 is fixedly mounted on the base plate 1.

[0035] The clamping mechanism 3 is installed on the conveying mechanism 4. The clamping mechanism 3 includes two symmetrically arranged clamping arms 302. Each clamping arm 302 is provided with two symmetrically arranged clamping rods 311. A suction cup 313 is fixedly installed on the clamping rod 311. The suction cup 313 is used to clamp metal materials.

[0036] A clamping motor 303 is fixedly mounted on the clamping arm 302, and a cylindrical gear is fixedly connected to the output shaft of the clamping motor 303. The cylindrical gear meshes with an incomplete gear 304 rotatably mounted on the clamping arm 302, and the incomplete gear 304 meshes with a driving gear 305 fixedly mounted on a central shaft 306. The central shaft 306 is rotatably mounted on the clamping arm 302, and both ends of the central shaft 306 are respectively connected to one end of two rotating rods 307 through universal joints. The rotating rods 307 are connected to the clamping arm 302 through universal joints. The other end of 07 is connected to one end of the rotating rod 308 through a universal joint. The other end of the rotating rod 308 is fixedly installed with a bevel gear 309. The bevel gear 309 is meshed with the bevel gear 310 rotatably installed on the clamping arm 302. The bevel gear 310 forms a spline fit with the clamping rod 311, and a return spring 312 is arranged between the bevel gear 310 and the clamping rod 311. The rotating rod 307 and the rotating rod 308 are rotatably installed on the clamping arm 302.

[0037] The clamping mechanism 3 further includes a middle block 301 , two sides of the middle block 301 are fixedly connected to two clamping arms 302 respectively, and the middle block 301 is connected to the conveying mechanism 4 .

[0038] The conveying mechanism 4 is movably mounted on the bottom plate 1 , and is used to drive the clamping mechanism 3 and the metal material to be detected to move.

[0039] The conveying mechanism 4 includes a conveying frame 401, a one-way rack 409 and four linearly arranged guide rails 407, the guide rails 407 are fixedly installed on the base plate 1, the conveying frame 401 slides with the guide rails 407, a rotating shaft 402 is rotatably installed on the conveying frame 401, one end of the rotating shaft 402 is fixedly connected to the middle block 301, the other end of the rotating shaft 402 is fixedly connected to the one-way gear 408, the one-way rack 409 slides with the stop block 410, and a reset spring 2 411 is arranged between the one-way rack 409 and the stop block 410, when the one-way gear 408 contacts the one-way rack 409, the one-way gear 408 and the one-way rack 409 form a ratchet pawl cooperation.

[0040] The conveying mechanism 4 also includes a dual-axis motor 403 fixedly mounted on the conveying frame 401, and one end of a belt assembly 404 is respectively connected to the output shafts at both ends of the dual-axis motor 403, and the other end of the belt assembly 404 is connected to a conveying gear 405 rotatably mounted on the conveying frame 401, and the conveying gear 405 is meshed with a conveying rack 406 fixedly mounted on the base plate 1.

[0041] Specifically, the belt assembly 404 includes two pulleys and a belt, the two pulleys are connected by the belt, one pulley is installed on the output shaft of the belt assembly 404, and the other pulley is fixedly connected to the conveying gear 405, so that when the output shaft drives the pulley to rotate, the pulley drives the other pulley connected to the conveying gear 405 to rotate through the belt, thereby causing the conveying gear 405 to rotate on the conveying frame 401.

[0042] The detection mechanism 5 is installed on the base plate 1 . The detection mechanism 5 includes a transmitter 510 and a receiver 511 . The transmitter 510 and the receiver 511 are used to detect metal materials.

[0043] The detection mechanism 5 also includes a transposition frame 509, on which two symmetrically arranged sliding frames are slidably mounted, and a bidirectional lead screw 516 is rotatably mounted on the sliding frame, and the bidirectional lead screw 516 is threadedly engaged with a slider 517, one slider 517 is fixedly connected to a receiver 511, and the other slider 517 is fixedly connected to a transmitter 510, and each bidirectional lead screw 516 is fixedly mounted with a bevel gear six 515, and the bevel gear six 515 is meshed with a bevel gear five 514, and the bevel gear five 514 is rotatably mounted on a connecting plate 513, and the connecting plate 513 is fixedly connected to the protruding end of the cylinder 512, and the connecting plate 513 is connected to the sliding frame, and the cylinder 512 is fixedly mounted on the transposition frame 509.

[0044] The detection mechanism 5 also includes a spline shaft 508 rotatably mounted on a transposition frame 509, and both ends of the spline shaft 508 respectively form a spline fit with two bevel gears 514, and a bevel gear 4 507 is fixedly mounted on the spline shaft 508, and the bevel gear 4 507 is meshed with the bevel gear 3 506, and the bevel gear 3 506 is connected to a power source.

[0045] The power source includes a detection motor 502 fixedly installed inside the protective cover 501, the protective cover 501 is fixedly installed on the base plate 1, one end of the belt assembly 2 503 is connected to the output shaft of the detection motor 502, the other end of the belt assembly 2 503 is connected to a worm 504 rotatably installed on the protective cover 501, the worm 504 is meshed with a worm wheel 505, the worm wheel 505 is fixedly connected to the transmission shaft, the transmission shaft is rotatably installed on the protective cover 501, the bevel gear 3 506 is fixedly connected to the transmission shaft, and the transposition frame 509 is fixedly connected to the transmission shaft.

[0046] The detection mechanism 5 also includes a symmetrically arranged upper baffle 518 and a lower baffle 519, which are slidably matched with the cover 2, and the upper baffle 518 and the lower baffle 519 are respectively threadedly matched with two double-headed threaded rods 521 on both sides, and the two ends of the double-headed threaded rod 521 are provided with threads with opposite rotation directions. The cylinder 512 is rotatably installed on the base plate 1, and the two double-headed threaded rods 521 are connected by a belt assembly 3 522, and one double-headed threaded rod 521 is connected to the opening and closing motor 520.

[0047] Specifically, Fig.13 As shown, one end of the belt assembly 4 is connected to the output shaft of the opening and closing motor 520, and the other end of the belt assembly 4 is connected to the double-headed threaded rod 521. The belt assembly 3 and the belt assembly are the same as the belt assembly 1 and the belt assembly 2, and both include two pulleys and a belt, and the pulleys are connected by belts. This belongs to the prior art for those skilled in the art and can be adopted and implemented.

[0048] Working principle: When testing metal materials, first fix the metal materials on the two clamping arms 302. Specifically, pull the two clamping rods 311 on the clamping arms 302 away from each other, so that the part of the clamping rods 311 located inside the clamping arms 302 is gradually reduced, thereby increasing the distance between the two clamping rods 311, thereby making it easier to put the metal materials in (such as Figure 2 As shown, the left clamping arm 302 is in a state of clamping a metal material. When the metal material is located between the two suction cups 313, the two clamping rods 311 are loosened. At this time, the clamping rods 311 move toward each other under the elastic force of the return spring 1 312, and finally the suction cup 313 fixedly connected to the clamping rod 311 is pressed against the surface of the metal material. In this way, the clamping of the metal material is completed. Since the metal material is added between the two suction cups 313, the return spring 1 312 cannot be restored to its original length at this time, that is, the return spring 1 312 will be compressed and always maintain elastic force, so that when the metal material is tested, the return spring 1 312 can assist the suction cup 313 to clamp the metal material. At the same time, since there are two clamping arms 302, two metal materials can be clamped at one time.

[0049] After the metal material is clamped, the double-axis motor 403 fixedly mounted on the conveying frame 401 is started, and the output shafts on both sides of the double-axis motor 403 drive the belt assembly 1 404 to move, so that the belt assembly 1 404 drives the conveying gear 405 to rotate on the conveying frame 401. Since the conveying gear 405 is meshed with the conveying rack 406 fixedly mounted on the bottom plate 1, when the conveying gear 405 rotates, the conveying gear 405 rolls along the conveying rack 406, that is, the conveying gear 405 drives the conveying frame 401 to move toward the side close to the cover 2. During the movement of the conveying frame 401, the one-way gear 408 moves with the conveying frame 401, that is, the one-way gear 408 first gradually approaches the one-way rack 409, and then the one-way gear 408 contacts the one-way rack 409, and finally the one-way gear 408 leaves the one-way rack 409. When the one-way gear 408 is in contact with the one-way rack 409, the one-way gear 408 and the one-way rack 409 form a ratchet pawl match, that is, when the movement direction of the one-way gear 408 is away from the cover 2, at this time, when the one-way gear 408 is in contact with the one-way rack 409, the one-way gear 408 will mesh with the one-way rack 409, so that under the action of the one-way rack 409, the one-way gear 408 will rotate, thereby rotating the shaft 402. The purpose of doing this is that when the conveying frame 401 moves to the side away from the cover 2, it represents the position at which the conveying frame 401 is located. The metal material clamped on the clamping arm 302 inside the cover 2 has completed the inspection, and the metal material that has completed the inspection needs to be moved out of the cover 2. The one-way rack 409 drives the rotation of the one-way gear 408, so that the metal material to be inspected on the other clamping arm 302 can be rotated 180 degrees, so that when the conveying frame 401 slides to the side close to the cover 2, it can enter the cover 2 for inspection. At the same time, by rotating 180 degrees, it is easy to take down the metal material that has completed the inspection and re-clamp an uninspected metal material. Therefore, when the conveying frame 401 moves to the side close to the cover 2, the unloading and loading of a metal material that has completed the inspection is completed, and at the same time, the process of the metal material on the other clamping arm 302 entering the cover 2 is completed. Therefore, when the conveying frame 401 moves close to the side of the cover 2, the one-way gear 408 and the one-way rack 409 will not mesh, and under the action of the one-way gear 408, the one-way rack 409 compresses the second return spring 411 and approaches the stopper 410. When the one-way gear 408 leaves the one-way rack 409, the one-way rack 409 is reset under the action of the second return spring 411. During the movement of the conveying frame 401, the guide rail 407 that slides with the conveying frame 401 plays a guiding role.

[0050] In the process of the clamping arm 302 driving the metal material to be detected to enter the cover 2, the opening and closing motor 520 fixedly installed inside the cover 2 is started, so that the opening and closing motor 520 drives a double-threaded rod 521 to rotate through the belt assembly 4, and the rotating double-threaded rod 521 drives another double-threaded rod 521 to rotate through the belt assembly 3 522. Since the threads at both ends of the double-threaded rod 521 are in opposite directions, when the double-threaded rod 521 rotates, the upper baffle 518 and the lower baffle 519 will slide along the cover 2 in opposite directions, that is, the upper baffle 518 and the lower baffle 519 are away from each other, so that the clamping arm 302 can enter the cover 2 and reach the specified position. Then the opening and closing motor 520 is reversed, so that the upper baffle 518 and the lower baffle 519 are close to and in contact with each other, and a closed space is formed by the cover 2, the upper baffle 518 and the lower baffle 519 to prevent the external light from affecting the detection result. Of course, after the clamping arm 302 enters the designated position in the cover 2, the dual-axis motor 403 enters a stopped state.

[0051] After the clamping arm 302 brings the metal material to the designated position, the two cylinders 512 fixedly mounted on the transposition frame 509 are started, so that the cylinders 512 drive the connecting plate 513 to move, and the connecting plate 513 drives the sliding frame to move, so that the sliding frame can slide along the transposition frame 509, and at this time, the distance between the transmitter 510 and the receiver 511 and the surface of the metal material can be adjusted, so as to complete the detection more accurately. Since the bevel gear 5 514 forms a spline fit with the spline shaft 508, the bevel gear 5 514 will not interfere with the movement of the sliding frame and the connecting plate 513.

[0052] After the height adjustment of the transmitter 510 and the receiver 511 is completed, the detection motor 502 fixedly installed in the protective cover 501 is started, so that the output shaft of the detection motor 502 drives the worm 504 to rotate through the belt assembly 2 503. At this time, the worm 504 rotates on the protective cover 501, and the worm wheel 505 meshing with the worm 504 drives the rotating shaft to rotate. During the rotation of the rotating shaft, the transposition frame 509 fixedly connected to the rotating shaft will rotate, and the bevel gear 3 506 will also rotate. When the bevel gear 3 506 rotates, the bevel gear 3 506 causes the bevel gear 4 507 to rotate, thereby causing the spline shaft 508 to rotate, and then the bevel gear 5 514 connected at both ends of the spline shaft 508 will drive the bevel gear 6 515 to rotate. Bevel gear six 515 causes the bidirectional lead screw 516 to rotate, and then the two sliders 517 will respectively drive the receiver 511 and the transmitter 510 to slide along the axial direction of the bidirectional lead screw 516. Since the bidirectional lead screw 516 is provided with bidirectional threads, the receiver 511 and the transmitter 510 can move back and forth to complete the detection, and at the same time cooperate with the transposition frame 509 to drive the transmitter 510 and the receiver 511 to rotate, so that the transmitter 510 and the receiver 511 can complete a comprehensive detection of the metal material.

[0053] In addition, when testing metal materials, the clamping motor 303 fixedly installed inside the clamping arm 302 can be started to drive the driving gear 305 to rotate intermittently through the incomplete gear 304, so that the central shaft 306 rotates intermittently on the clamping arm 302. When the center shaft 306 rotates, the center shaft 306 drives the rotating rod 1 307 to rotate on the clamping arm 302 through the universal joint, and the rotating rod 1 307 drives the rotating rod 2 308 to rotate on the clamping arm 302 through the universal joint. At this time, the bevel gear 1 309 on the rotating rod 2 308 drives the bevel gear 2 310 to rotate. Since the bevel gear 2 310 is splined with the clamping rod 311, the clamping rod 311 will also rotate. In this way, the clamping rod 311 can drive the metal material to rotate 90 degrees, so that one end of the metal material opens toward the transmitter 510, thereby completing the detection of the inside of the metal material through the transmitter 510 and the receiver 511. In this way, the transmitter 510 and the receiver 511 realize the full detection of the inside and outside of the metal material, thereby improving the detection range and accuracy.

Claims

1. A metal material internal and external defect detection device, comprising a base plate (1) and a cover (2), characterized in that: It also includes a clamping mechanism (3), a conveying mechanism (4) and a detection mechanism (5); the cover (2) is fixedly mounted on the base plate (1); The clamping mechanism (3) is installed on the conveying mechanism (4), and the clamping mechanism (3) comprises two symmetrically arranged clamping arms (302), each of the clamping arms (302) is provided with two symmetrically arranged clamping rods (311), and a suction cup (313) is fixedly mounted on the clamping rod (311), and the suction cup (313) is used to clamp the metal material; The conveying mechanism (4) is movably mounted on the bottom plate (1), and the conveying mechanism (4) is used to drive the clamping mechanism (3) and the metal material to be tested to move; The detection mechanism (5) is installed on the base plate (1), and the detection mechanism (5) comprises a transmitter (510) and a receiver (511), and the transmitter (510) and the receiver (511) are used to detect metal materials; A clamping motor (303) is fixedly mounted on the clamping arm (302), and a cylindrical gear is fixedly connected to the output shaft of the clamping motor (303). The cylindrical gear meshes with an incomplete gear (304) rotatably mounted on the clamping arm (302), and the incomplete gear (304) meshes with a driving gear (305) fixedly mounted on a central shaft (306). The central shaft (306) is rotatably mounted on the clamping arm (302), and both ends of the central shaft (306) are respectively connected to one end of two rotating rods (307) through universal joints. The rotating rods (307) are connected to the driving gears (305) of the clamping arm (302). The other end of the rotating rod (307) is connected to one end of the rotating rod (308) through a universal joint, and the other end of the rotating rod (308) is fixedly mounted with a bevel gear (309), and the bevel gear (309) is meshed with a bevel gear (310) rotatably mounted on the clamping arm (302), and the bevel gear (310) and the clamping rod (311) form a spline fit, and a return spring (312) is provided between the bevel gear (310) and the clamping rod (311), and the rotating rod (307) and the rotating rod (308) are rotatably mounted on the clamping arm (302); The clamping mechanism (3) further comprises a middle block (301), two sides of the middle block (301) are respectively fixedly connected to two clamping arms (302), and the middle block (301) is connected to the conveying mechanism (4).

2. A metal material internal and external defect detection device as claimed in claim 1, characterized in that: The conveying mechanism (4) comprises a conveying frame (401), a one-way rack (409) and four linearly arranged guide rails (407), wherein the guide rails (407) are fixedly mounted on the bottom plate (1), the conveying frame (401) and the guide rails (407) are slidably matched, a rotating shaft (402) is rotatably mounted on the conveying frame (401), one end of the rotating shaft (402) is fixedly connected to the intermediate block (301), and the other end of the rotating shaft (402) is fixedly connected to the one-way gear (408), the one-way rack (409) and the stop block (410) are slidably matched, and a second return spring (411) is provided between the one-way rack (409) and the stop block (410), and when the one-way gear (408) contacts the one-way rack (409), the one-way gear (408) and the one-way rack (409) form a ratchet pawl match.

3. A metal material internal and external defect detection device as claimed in claim 2, characterized in that: The conveying mechanism (4) further comprises a double-axis motor (403) fixedly mounted on the conveying frame (401), one end of a belt assembly (404) being respectively connected to output shafts at both ends of the double-axis motor (403), the other end of the belt assembly (404) being connected to a conveying gear (405) rotatably mounted on the conveying frame (401), and the conveying gear (405) being meshed with a conveying rack (406) fixedly mounted on the bottom plate (1).

4. A metal material internal and external defect detection device as claimed in claim 3, characterized in that: The detection mechanism (5) further comprises a transposition frame (509), on which two symmetrically arranged sliding frames are slidably mounted, on which a bidirectional lead screw (516) is rotatably mounted, the bidirectional lead screw (516) being threadedly engaged with a slider (517), one slider (517) being fixedly connected to a receiver (511), and the other slider (517) being fixedly connected to a transmitter (510), and each bidirectional lead screw (516) being fixedly mounted with a bevel gear six (515), the bevel gear six (515) being meshed with a bevel gear five (514), the bevel gear five (514) being rotatably mounted on a connecting plate (513), the connecting plate (513) being fixedly connected to an extended end of a cylinder (512), and the connecting plate (513) being connected to the sliding frame, and the cylinder (512) being fixedly mounted on the transposition frame (509).

5. A metal material internal and external defect detection device as claimed in claim 4, characterized in that: The detection mechanism (5) further comprises a spline shaft (508) rotatably mounted on a transposition frame (509), the two ends of the spline shaft (508) respectively forming a spline fit with two bevel gears five (514), and a bevel gear four (507) is fixedly mounted on the spline shaft (508), the bevel gear four (507) is meshingly matched with a bevel gear three (506), and the bevel gear three (506) is connected to a power source.

6. A metal material internal and external defect detection device as claimed in claim 5, characterized in that: The power source comprises a detection motor (502) fixedly mounted inside the protective cover (501); the protective cover (501) is fixedly mounted on the base plate (1); one end of a second belt assembly (503) is connected to the output shaft of the detection motor (502); the other end of the second belt assembly (503) is connected to a worm (504) rotatably mounted on the protective cover (501); the worm (504) is meshed with a worm wheel (505); the worm wheel (505) is fixedly connected to a transmission shaft; the transmission shaft is rotatably mounted on the protective cover (501); a third bevel gear (506) is fixedly connected to the transmission shaft; and the transposition frame (509) is fixedly connected to the transmission shaft.

7. A metal material internal and external defect detection device as claimed in claim 6, characterized in that: The detection mechanism (5) further comprises an upper baffle (518) and a lower baffle (519) which are symmetrically arranged, wherein the upper baffle (518) and the lower baffle (519) are slidably matched with the cover (2), and the two sides of the upper baffle (518) and the lower baffle (519) are respectively threadedly matched with two double-headed threaded rods (521), and the two ends of the double-headed threaded rod (521) are provided with threads with opposite rotation directions, and the cylinder (512) is rotatably mounted on the bottom plate (1), and the two double-headed threaded rods (521) are connected via a belt assembly three (522), and one double-headed threaded rod (521) is connected to the opening and closing motor (520).

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