A kind of rivet nut leak detection machine

Abstract

The present invention relates to the technical field of rivet nut processing, and specifically discloses a rivet nut leak detector, including a leak detector body, a movable positioning tool is provided on the top of the leak detector body, a top plate is installed on the top of the leak detector body, the top plate is provided with an automatic feeding mechanism, a detection mechanism is provided on the top of the top plate, a placement plate is installed on the top of the movable positioning tool, the placement plate is provided with an automatic discharge mechanism, and the automatic feeding mechanism includes a box body, a first inclined plate and a second inclined plate are installed in the box body, and two feeding tubes are installed at the bottom of the box body. In the invention, the rivet nuts can be placed in the box body through the provided feeding mechanism, and the rivet nuts can be sorted through a plurality of mechanisms provided in the box body, so that they are automatically discharged from the feeding tube into the placement slot, and the rivet nuts do not need to be placed in the placement slot one by one manually, thereby improving the detection efficiency and adapting to the automatic detection of large quantities of rivet nuts.

Description

Technical Field

[0001] The invention relates to a leak detector, in particular to a rivet nut leak detector, and belongs to the technical field of rivet nut processing. Background Art

[0002] Pull rivet nuts, also known as rivet nuts, pull caps, instant pull caps, are used in the fastening field of various metal plates, pipes and other manufacturing industries. They are widely used in the assembly of electromechanical and light industrial products such as automobiles, aviation, instruments, furniture, and decoration. They are developed to solve the shortcomings of easy melting of welding nuts on metal sheets and thin tubes, and easy slipping of tapping internal threads. They do not require tapping internal threads, do not require welding nuts, have strong riveting efficiency, and are easy to use. The safety of pull rivet nuts is related to our life safety, so we must know whether the quality of pull rivet nuts after production and processing is qualified, so it is particularly important to detect pull rivet nuts before use.

[0003] In the prior art, the inspection of rivet nuts is generally performed by the naked eye of the staff. Manual inspection cannot achieve consistency in the inspection standards for some dirty rivet nuts, and is prone to false inspections, missed inspections, etc. Although there are a small number of inspection devices in the prior art that can automatically inspect rivet nuts, the loading of the inspection equipment is still done manually by placing the rivet nuts one by one on the tooling of the inspection equipment. After the inspection of the rivet nuts by the inspection equipment, the rivet nuts are manually removed one by one, so that the work efficiency is still not improved and it is unable to adapt to the inspection of large quantities of rivet nuts. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings in the prior art and to provide a rivet nut leak detection machine.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A rivet nut leak detector comprises a leak detector body, a movable positioning fixture is slidably provided on the top of the leak detector body, a top plate is also installed on the top of the leak detector body through a plurality of connecting columns, an automatic feeding mechanism is provided on the top of one end of the top plate close to the movable positioning fixture, a detection mechanism is provided on the top of one end of the top plate away from the movable positioning fixture, a placement plate is rotatably installed on the top of the movable positioning fixture, and an automatic discharging mechanism is provided at one end of the placement plate, the automatic feeding mechanism comprises a box body installed on the top of the top plate through a support rod, a first inclined plate and a second inclined plate are installed in sequence inside the box body from top to bottom, and two feeding pipes are installed at the bottom of the box body.

[0007] Optionally, a filter plate is hinged on the inner top of the box, and a guide plate with an inclined bottom surface is installed at the bottom. A drive motor is installed on the outer wall of one side of the box. One end of the filter plate hinge shaft passes through the box and is coaxially connected to the output end of the drive motor. A vibration motor is installed between the bottom of the box and the top of the top plate.

[0008] Optionally, a partition is installed inside the first inclined plate, and the interior of the first inclined plate is divided into two guide grooves by the partition.

[0009] Optionally, a partition is installed on the top of the higher end of the second inclined plate, and the partition is close to the lower end of the first inclined plate. Two groups of rotating rollers are symmetrically installed inside the second inclined plate, and openings are provided between each group of rotating rollers. The opening at the lower end of each group of rotating rollers is larger than the high end. A guide member in an upward protruding shape is installed inside the second inclined plate between the two groups of rotating rollers.

[0010] Optionally, the rotating shafts of the two groups of rotating rollers are equipped with sliders, and grooves for the sliding of the sliders are opened inside the opposite ends of the second inclined plate, a dual-axis motor is installed in one of the grooves, and the two output ends of the dual-axis motor are coaxially connected with double-headed screws, and the ends of the two double-headed screws away from the dual-axis motor respectively pass through two sliders close to them, and a sliding rod is installed in the other groove, and both ends of the sliding rod pass through the sliders at the other ends of the two groups of rotating shafts.

[0011] Optionally, a length detector is installed on the inner bottom surface of the box near the two feeding pipes, two telescopic cylinders are installed on the top of the top plate near the box, and the protruding ends of the two telescopic cylinders pass through the box and are connected to arc-shaped electromagnets, two guide plates are also installed in an inclined state on the inner bottom surface of the box near the two feeding pipes, discharge pipes are installed on the outer wall of the lower end of the box near the two guide plates, and collection boxes are placed on the top of the top plate near the two discharge pipes.

[0012] Optionally, the automatic discharging mechanism includes two placement slots opened inside the placement plate, the bottoms of the two feeding tubes are respectively located directly above the two placement slots, two inclined hanging rods are installed inside the two placement slots, a baffle is rotatably installed at the lower end of the placement plate close to the hanging rod, the bottom end of the baffle is fixedly connected with a bent portion bent toward the placement plate, the top of the baffle is connected to a magnet block, and a start button and a display screen are installed at the top edge of the top plate.

[0013] Optionally, an electric telescopic rod is installed at a position near the baffle at the bottom of the top plate, and the protruding end of the electric telescopic rod is connected to a magnetic plate. The top of the magnetic block is magnetically adsorbed to the bottom of the magnetic plate, and a collecting mechanism for collecting the rivet nuts after detection is provided at a position near the baffle at the top of the leak detector body.

[0014] Optionally, the collecting mechanism includes a collecting trough installed on the top of the leak detector body through two support rods, the feeding end of the collecting trough is close to the lower end of the hanging rod, and the discharging end of the collecting trough extends to the inside of the leak detector body.

[0015] Optionally, buffer plates are symmetrically installed at the feed end and the discharge end of the collecting trough, a buffer spring is connected between the buffer plate and the collecting trough, a buffer pad is bonded to the outer wall of the buffer plate on the side away from the collecting trough, a collection box is slidably installed inside the leak detector body, and the discharge end of the collecting trough is located directly above the collection box.

[0016] The beneficial effects of the present invention are:

[0017] 1. In the present invention, a large number of rivet nuts to be inspected can be placed in a box through a feeding mechanism, and the disordered rivet nuts are sorted out through a plurality of mechanisms arranged in the box, so that they are automatically discharged from a feeding pipe into a placement slot of a placement plate, and then the placement plate is driven by a movable positioning tool to move to the bottom of the inspection mechanism for inspection. There is no need to manually place the rivet nuts one by one in the placement slot, thereby improving the inspection efficiency and adapting to the automatic inspection of large quantities of rivet nuts.

[0018] 2. In the invention, the two sets of rotating rollers arranged inside the second inclined plate can automatically arrange the rivet nuts, and in the process of the rivet nuts moving downward in the opening between the two rotating rollers, the rivet nuts that do not meet the specifications in size are automatically removed; and the length detector and the telescopic cylinder and other mechanisms arranged in the box body can remove the rivet nuts that do not meet the specifications in length, so that the device can automatically remove the rivet nuts that do not meet the specifications in size and length before detecting the rivet nuts, thereby avoiding the problem that the device needs to spend a lot of time to detect a large number of rivet nuts later, thereby reducing the detection efficiency.

[0019] 3. In the invention, by setting up an automatic discharging mechanism, after the detection mechanism completes the detection of the rivet nuts, the movable positioning tooling can drive the placement plate to reset, and the motor can drive the placement plate to rotate a certain angle, so that the baffle at the lower end of the placement slot is automatically opened after the placement plate is rotated, and the rivet nuts after detection in the placement slot are automatically discharged into the collecting slot and then into the collection box for collection, thereby realizing the functions of automatic discharging and collection, so that after the rivet nut detection is completed, the staff does not need to manually take out the rivet nuts one by one, and the feeding mechanism can further improve the detection efficiency of the rivet nuts, and realize the rapid detection of the rivet nuts. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the overall structure of a rivet nut leak detection machine proposed by the present invention;

[0022] Figure 2 for Figure 1 A schematic diagram of the structure from another angle;

[0023] Figure 3 It is a structural cross-sectional view of the leak detector body of the present invention;

[0024] Figure 4 It is a structural cross-sectional view of the box body in the present invention;

[0025] Figure 5 for Figure 4 Structural sectional view of the bottom of the middle box;

[0026] Figure 6 is a schematic structural diagram of the first inclined plate in the present invention;

[0027] Figure 7 It is a schematic structural diagram of the second inclined plate and the rotating roller in the present invention;

[0028] Figure 8 It is a schematic diagram of the structure of the placement plate, the magnetic plate and the baffle in the present invention.

[0029] In the figure: 1. Leak detector body; 2. Detection mechanism; 3. Display screen; 4. Movable positioning tooling; 5. Start button; 6. Box body; 7. Top plate; 8. Collecting tank; 9. Driving motor; 10. Magnetic plate; 11. Hanging rod; 12. Placement plate; 13. Placement tank; 14. Collecting box; 15. Filter plate; 16. Guide plate; 17. Feeding pipe; 18. First inclined plate; 19. Second inclined plate; 20. Telescopic cylinder; 21. Vibration motor; 22. Collecting box; 23. Discharge pipe; 24. Length detector; 25. Electric telescopic rod; 26. Baffle; 27. Buffer plate; 28. Buffer spring; 29. ​​Rotating roller; 30. Guide groove; 31. Guide; 32. Double-axis motor; 33. Double-headed screw; 34. Sliding block; 35. Arc electromagnet. Implementation

[0030] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than 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.

[0031] Reference Figure 1-Figure 8A rivet nut leak detector comprises a leak detector body 1, a movable positioning tool 4 is slidably provided on the top of the leak detector body 1, a top plate 7 is also installed on the top of the leak detector body 1 through a plurality of connecting columns, an automatic feeding mechanism is provided on the top of one end of the top plate 7 close to the movable positioning tool 4, a detection mechanism 2 is provided on the top of the end of the top plate 7 away from the movable positioning tool 4, a placing plate 12 is rotatably installed on the top of the movable positioning tool 4, and an automatic discharging mechanism is provided at one end of the placing plate 12, the automatic feeding mechanism comprises a box body 6 installed on the top of the top plate 7 through a support rod, a first inclined plate 18 and a second inclined plate 19 are installed in sequence from top to bottom inside the box body 6, and two feeding pipes 17 are installed at the bottom of the box body 6.

[0032] As a technical optimization solution of the present invention, a filter plate 15 is hinged on the inner top of the box body 6, and a guide plate 16 with an inclined bottom surface is installed at the bottom thereof. A drive motor 9 is installed on the outer wall of one side of the box body 6. One end of the hinge shaft of the filter plate 15 passes through the box body 6 and is coaxially connected to the output end of the drive motor 9. A vibration motor 21 is installed between the bottom of the box body 6 and the top of the top plate 7. When the processed rivet nut is placed in the box body 6, the rivet nut first falls on the top of the filter plate 15, and the vibration motor 21 at the bottom of the box body 6 can be started to drive the box body 6 and the rivet nut on the top of the filter plate 15 to vibrate together, so as to shake off a small amount of dust and processing debris on the surface and inside of the rivet nut. This part of the dust and debris will naturally pass through the filter plate 15 and fall on the top of the guide plate 16. Since the guide plate 16 is installed at the bottom of the filter plate 15 in an inclined state, the dust and debris will slide toward the lower end of the guide plate 16 after falling on the top of the guide plate 16 until the dust and debris are automatically discharged from the lower end of the guide plate 16, thereby facilitating the automatic cleaning of the small amount of dust and debris on the surface or inside of the processed rivet nut, and avoiding the rivet nut with dust and debris on the surface or inside from being misjudged as an unqualified product by the detection mechanism 2 when the rivet nut enters the placement plate 12 for detection, thereby reducing the detection efficiency of the leak detector and increasing the production cost.

[0033] As a technical optimization solution of the present invention, a partition is installed inside the first inclined plate 18, and the interior of the first inclined plate 18 is divided into two guide grooves 30 by the partition.

[0034] As a technical optimization solution of the present invention, a partition is installed on the top of the higher end of the second inclined plate 19, and the partition is close to the lower end of the first inclined plate 18. Two groups of rotating rollers 29 are symmetrically installed inside the second inclined plate 19, and openings are provided between each group of rotating rollers 29. The opening at the lower end of each group of rotating rollers 29 is larger than the higher end. A guide member 31 in an upward protruding shape is installed inside the second inclined plate 19 and between the two groups of rotating rollers 29. After cleaning the dust and debris on the surface or inside of the rivet nut, the driving motor 9 can drive the hinge shaft of the filter plate 15 to rotate, thereby driving the filter plate 15 to rotate toward the inside of the box body 6, and discharge the rivet nut with the dust and debris on its top to the top of the first inclined plate 18. The rivet nut falling on the top of the first inclined plate 18 will slide downward along the lower end of the inclined surface of the first inclined plate 18, and in the process of the rivet nut sliding downward, the rivet nut sliding downward will be automatically separated into the guide groove 30 by the provided partition and slide down to the inside of the second inclined plate 19, so as to facilitate the guidance of the rivet nut sliding downward, so that it can accurately fall on the top of the two groups of rotating rollers 29 of the second inclined plate 19, and the rotating rollers 29 in rotation make the rivet nut automatically fall into the opening between the two rotating rollers 29. Since the second inclined plate 19 is also inclined, the rivet nut falling in the opening of the two rotating rollers 29 will be affected by its own gravity, so that the larger end of the rivet nut The rivet nut is arranged upward with the small end facing downward, and is neatly arranged in the opening of the two rotating rollers 29 and slides downward toward the lower end; and because the lower ends of the two rotating rollers 29 are inclined toward the ends away from each other, the lower end of the opening between the two rotating rollers 29 will be larger than the higher end. If the rivet nut deviates during the production process, causing the large end to be larger or smaller than the specification, when it falls into the opening of the two rotating rollers 29 and moves slowly downward, when the large end of the rivet nut is smaller, it will automatically fall down from the opening when it moves downward in the opening to a position close to the feeding tube 17. When the large end of the rivet nut is larger, it will move downward in the opening and will fall down only after passing through the feeding tube 17, so that the rivet nuts that do not meet the specifications in size cannot accurately fall into the feeding tube 17, thereby automatically removing the rivet nuts that do not meet the specifications in size, avoiding the need for subsequent leak detector body 1 to spend time on detecting them, and improving the detection efficiency of the leak detector body 1.

[0035] As a technical optimization scheme of the present invention, the rotating shafts of the two groups of rotating rollers 29 are both equipped with sliders 34, and grooves for the sliders 34 to slide are provided inside the opposite ends of the second inclined plate 19, wherein a double-shaft motor 32 is installed in one of the grooves, and the two output ends of the double-shaft motor 32 are coaxially connected with double-headed screws 33, and the ends of the two double-headed screws 33 away from the double-shaft motor 32 respectively pass through the two sliders 34 close to them, and a slide bar is installed in the other groove, and the two ends of the slide bar pass through the sliders 34 at the other ends of the two groups of rotating shafts. By respectively arranging the slide bar and the double-shaft motor 32 in the two grooves of the second inclined plate 19, when the leak detector body 1 detects rivet nuts of different sizes, the double-shaft motor 32 can be started to drive the double-headed screws 33 connected to its two output ends to rotate together, and the spacing between the two groups of rotating rollers 29 on the outer walls of the two double-headed screws 33 can be adjusted, so that the two groups of rotating rollers 29 can adapt to the transportation and screening of rivet nuts of different sizes, thereby improving the overall practicality of the device.

[0036] As a technical optimization scheme of the present invention, a length detector 24 is installed on the inner bottom surface of the box body 6 near the two feeding pipes 17, two telescopic cylinders 20 are installed on the top of the top plate 7 near the box body 6, and the protruding ends of the two telescopic cylinders 20 pass through the box body 6 and are connected to arc-shaped electromagnets 35, and two guide plates are installed in an inclined state on the inner bottom surface of the box body 6 near the two feeding pipes 17, and discharge pipes 23 are installed on the outer wall of the lower end of the box body 6 near the two guide plates, and collection boxes 22 are placed on the top of the top plate 7 near the two discharge pipes 23. In addition to a small number of rivet nuts that do not meet the specifications in size, there will also be a small number of rivet nuts that do not meet the specifications in length after processing. When the rivet nut falls on the higher end of the opening between the two rotating rollers 29 and moves slowly to the lower end, when the rivet nut moves to a position close to the feeding tube 17, the rivet nut falling in the opening is detected by the length detector 24. After the rivet nut whose length does not meet the specifications is found, the signal will be transmitted to the main controller, and the main controller will control the extended end of the telescopic cylinder 20 to extend, drive the arc electromagnet 35 at the extended end to move to the position of the unqualified rivet nut and abut against the rivet nut, so that the arc electromagnet 35 is energized to be magnetically attracted to the rivet nut, and the rivet nut that is magnetically attracted to the arc electromagnet 35 is retracted by the extended end of the telescopic cylinder 20 to move to the end position of the lower end of the rotating roller 29, and then the arc electromagnet 35 is controlled by the main controller to be de-energized, so that the magnetic attraction effect between the rivet nut and the arc electromagnet 35 is lost, and the rivet nut whose length does not meet the specifications will automatically The rivet nuts that do not meet the specifications and fall into the openings of the two rotating rollers 29 will automatically fall down to the guide plate and be discharged from the two discharge pipes 23 to the two collection boxes 22, so as to facilitate the automatic collection of the rivet nuts that do not meet the specifications. The length detector 24 in the present application is an inductive sensor in the prior art, and the model of the inductive sensor is IFFM. The inductive sensor is a mutual inductive sensor, which can convert the geometric changes of non-electrical physical quantities such as length, inner diameter, outer diameter, non-parallelism, non-verticality, eccentricity, ellipticity, etc. caused by tiny mechanical quantities such as displacement, vibration, and pressure into tiny changes in electrical signals, and convert them into electrical parameters for measurement. It is a highly sensitive sensor with a series of advantages such as simple and reliable structure, large output power, strong anti-impedance ability, low requirements on the working environment, and good stability. Therefore, it is widely used in various engineering physical quantity detection and automatic control systems.

[0037] As a technical optimization scheme of the present invention, the automatic discharging mechanism includes two placement grooves 13 opened inside the placement plate 12, the bottoms of the two feeding pipes 17 are respectively located directly above the two placement grooves 13, and two inclined hanging rods 11 are installed inside the two placement grooves 13. A baffle 26 is rotatably installed at the lower end of the placement plate 12 close to the hanging rod 11, and the bottom end of the baffle 26 is fixedly connected with a bent portion bent toward the placement plate 12. A magnet block is connected to the top of the baffle 26, and a start button 5 and a display screen 3 are installed at the top edge of the top plate 7.

[0038] As a technical optimization scheme of the present invention, an electric telescopic rod 25 is installed at the bottom of the top plate 7 near the baffle 26, and the protruding end of the electric telescopic rod 25 is connected to the magnetic plate 10. The top of the magnet block is magnetically adsorbed to the bottom of the magnetic plate 10, and a collecting mechanism for collecting the rivet nuts after detection is provided at the top of the leak detector body 1 near the baffle 26. After the rivet nuts are sorted and removed through the openings of the two rotating rollers 29, the rivet nuts that meet the specifications will automatically fall from the opening into the feeding tube 17, and fall into the placement groove 13 of the placement plate 12 through the feeding tube 17. Since two inclined hanging rods 11 are provided in the placement groove 13, after the rivet bolt falls into the placement groove 13, it will automatically fall into the gap between the two hanging rods 11, and slowly slide downward along the lower end of the hanging rod 11, so that the rivet nuts that fall subsequently can be automatically and neatly arranged in the gap between the two hanging rods 11; in the placement After the rivet nuts in the placement slot 13 are inspected and unqualified products are manually taken out, the movable positioning tool 4 is controlled to move to a position close to the collecting slot 8, and the motor drives the placement plate 12 to rotate a certain angle toward the collecting slot 8, so that the magnet block on the top of the baffle 26 at the lower end of the placement slot 13 is separated from the magnetic plate 10, and the baffle 26 automatically rotates downward and opens after not being magnetically attracted by the magnetic plate 10, so that the rivet nuts inside the placement slot 13 are automatically discharged from the lower end of the hanging rod 11, realizing the function of automatic material discharge, so that the workers can After the inspection of the rivet nuts is completed, the workers do not need to manually take out the rivet nuts one by one. The feeding mechanism can further improve the inspection efficiency of the rivet nuts and realize the rapid inspection of the rivet nuts. When the next batch of rivet nuts are inspected, the baffle 26 is still in the downward rotation and opening state, and the extended end of the electric telescopic rod 25 can be controlled to extend downward, driving the bottom end of the magnetic plate 10 to move to the top of the magnetic block, and making the magnetic block magnetically adsorbed with the magnetic plate 10 again, thereby driving the baffle 26 to reset, so that the bending part at the bottom of the baffle 26 is aligned with the magnetic plate 10. The top of the placement plate 12 is abutted, limiting the baffle 26 to only rotate upward to a horizontal state, and re-blocking the opening of the lower end of the placement slot 13, and then the motor controls the placement plate 12 to rotate and reset again, and the rivet nuts continue to be discharged into the placement slot 13 by the feeding pipe 17; while the movable positioning tooling 4 drives the placement plate 12 to move together, the magnet block on the top of the baffle 26 is always magnetically adsorbed to the bottom of the magnetic plate 10, ensuring that it can always block the opening position of the placement slot 13, and it can be opened only after the detection is completed in conjunction with the rotation of the placement plate 12.

[0039] As a technical optimization solution of the present invention, the collection mechanism includes a collection trough 8 installed on the top of the leak detector body 1 through two support rods, the feed end of the collection trough 8 is close to the lower end of the hanging rod 11, and the discharge end of the collection trough 8 extends to the inside of the leak detector body 1.

[0040] As a technical optimization scheme of the present invention, buffer plates 27 are symmetrically installed at the feed end and the discharge end of the collecting trough 8, a buffer spring 28 is connected between the buffer plate 27 and the collecting trough 8, a buffer pad is bonded to the outer wall of the buffer plate 27 away from the collecting trough 8, and a collection box 14 is slidably installed inside the leak detector body 1, and the discharge end of the collecting trough 8 is located directly above the collecting box 14. After the placement plate 12 rotates downward toward one end of the collecting slot 8 to discharge the qualified rivet nuts in the placement slot 13 into the collecting slot 8, the rivet nut slides downward along the collecting slot 8 and hits the buffer pad of the buffer plate 27 during the sliding process. The buffer pad is made of soft material to prevent the rivet nut from directly contacting the buffer plate 27 and causing damage. After the rivet nut hits the buffer plate 27, the buffer pad can reduce a certain impact force. After the buffer plate 27 is hit, the buffer spring 28 is compressed to further buffer the impact force, so as to prevent the rivet nut from sliding too fast and the impact force being too large when entering the collection box 14 through the collection slot 8, resulting in severe collision with the inner wall of the collection box 14, causing damage and continuous noise.

[0041] In the present invention, when the staff needs to use the device to detect the rivet nuts, after placing a large number of rivet nuts in the box body 6, the rivet nuts fall on the top of the filter plate 15, and the vibration of the rivet nuts can be started by the vibration motor 21 to shake off a small amount of dust and processing debris on the surface and inside of the rivet nuts. This part of the dust and debris will naturally pass through the filter plate 15 and fall on the top of the guide plate 16, and will be automatically discharged from the lower end of the guide plate 16, so as to facilitate the automatic cleaning of the small amount of dust and debris on the surface or inside of the processed rivet nuts.

[0042] After cleaning the dust and debris on the surface or inside of the rivet nut, the driving motor 9 drives the filter plate 15 to rotate, discharges the rivet nuts on the top thereof to the top of the first inclined plate 18, and slides down to the opening between the two rotating rollers 29. When the rivet nut falls into the opening of the two rotating rollers 29 and moves slowly downward, when the larger end of the rivet nut is smaller, it will automatically fall down from the opening when it moves downward in the opening to a position close to the feeding tube 17. When the larger end of the rivet nut is larger, it will move downward in the opening and will not fall down until it passes through the feeding tube 17, so that the rivet nuts that do not meet the specifications cannot fall accurately into the feeding tube 17, thereby automatically removing the rivet nuts that do not meet the specifications.

[0043] In addition, there will be a small number of rivet nuts that do not meet the specifications in length among the processed rivet nuts. When the rivet nuts fall into the openings of the two rotating rollers 29 and move slowly, the rivet nuts that fall into the openings are detected by the length detector 24. After the rivet nuts whose lengths do not meet the specifications are found, the extended end of the telescopic cylinder 20 extends to drive the arc-shaped electromagnet 35 to be energized and magnetically attracted to the rivet nuts, and the extended end of the telescopic cylinder 20 is retracted to drive the rivet nuts to fall downward to the top of the guide plate, and are discharged from the discharge pipe 23 to the collection box 22 for collection; and the rivet nuts that do not meet the specifications and fall into the openings of the two rotating rollers 29 will also automatically fall downward to the guide plate and be discharged from the two discharge pipes 23 to the two collection boxes 22, so as to facilitate the automatic collection of the rivet nuts that do not meet the specifications.

[0044] After the rivet nuts are sorted and removed through the openings of the two rotating rollers 29, the rivet nuts that meet the specifications will automatically fall from the opening into the feeding tube 17, and automatically and neatly arrange in the gap between the two hanging rods 11 through the feeding tube 17. At this time, the staff can press the start button 5 to make the movable positioning tooling 4 drive the placement plate 12 to move to the bottom of the detection mechanism 2 to automatically detect the rivet nuts. Since the feeding tube 17 is provided with an automatic valve inside, the feeding tube 17 can be automatically blocked when the placement plate 12 moves to the bottom of the detection mechanism 2 to avoid the feeding tube 1 The rivet nuts in the slot 13 continue to fall downward, and there are still rivet nuts to be detected in the openings of the two rotating rollers 29 at this time. In order to prevent them from continuing to fall into the feeding tube 17, the telescopic cylinder 20 can be started to extend its extended end in the box body 6, and the arc-shaped electromagnet 35 at the extended end abuts against the rivet nut in the opening, which can block the subsequent rivet nuts. The detection status of the rivet nuts in the placement slot 13 can be clearly observed from the display screen 3. Qualified rivet nuts will be displayed in green on the display screen 3, and unqualified rivet nuts will be displayed in red on the display screen 3 and an alarm will be sounded.

[0045] After the rivet nuts in the placement groove 13 are inspected, the movable positioning tooling 4 drives the placement plate 12 to reset, and the unqualified products therein are manually taken out. Then the placement plate 12 can be driven by the motor to rotate toward the collecting groove 8, so that the magnetic block of the baffle 26 is separated from the magnetic plate 10, and the baffle 26 is rotated downward to open. The rivet nuts can be discharged into the collecting groove 8 and enter the collection box 14 for collection, which is convenient for subsequent staff to take.

[0046] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A rivet nut leak detector, comprising a leak detector body (1), characterized in that: A movable positioning fixture (4) is slidably provided on the top of the leak detector body (1), and a top plate (7) is also installed on the top of the leak detector body (1) via a plurality of connecting columns. An automatic feeding mechanism is provided on the top of one end of the top plate (7) close to the movable positioning fixture (4), and a detection mechanism (2) is provided on the top of one end of the top plate (7) away from the movable positioning fixture (4). A placement plate (12) is rotatably installed on the top of the movable positioning fixture (4), and an automatic discharge mechanism is provided at one end of the placement plate (12). The automatic feeding mechanism comprises a box body (6) installed on the top of the top plate (7) via a support rod, and a first inclined plate (18) and a second inclined plate (19) are installed in sequence from top to bottom inside the box body (6), and two feeding pipes (17) are installed at the bottom of the box body (6); A filter plate (15) is hingedly connected to the inner top of the box (6), and a guide plate (16) with an inclined bottom surface is installed at the bottom thereof; a drive motor (9) is installed on an outer wall of one side of the box (6); one end of the hinge shaft of the filter plate (15) passes through the box (6) and is coaxially connected to the output end of the drive motor (9); and a vibration motor (21) is installed between the bottom of the box (6) and the top of the top plate (7); A partition is installed inside the first inclined plate (18), and the interior of the first inclined plate (18) is divided into two guide grooves (30) by the partition; A partition is installed at the top of the higher end of the second inclined plate (19), and the partition is close to the lower end of the first inclined plate (18); two groups of rotating rollers (29) are symmetrically installed inside the second inclined plate (19), and an opening is provided between each group of rotating rollers (29); the opening at the lower end of each group of rotating rollers (29) is larger than the opening at the higher end; and a guide member (31) in an upwardly protruding shape is installed inside the second inclined plate (19) and between the two groups of rotating rollers (29); The rotating shafts of the two groups of rotating rollers (29) are both equipped with sliders (34), and grooves for the sliders (34) to slide are provided inside the opposite ends of the second inclined plate (19), wherein a double-axis motor (32) is installed in one of the grooves, and the two output ends of the double-axis motor (32) are coaxially connected to double-headed screws (33), and the ends of the two double-headed screws (33) away from the double-axis motor (32) respectively pass through two sliders (34) close thereto, and a slide rod is installed in the other groove, and the two ends of the slide rod pass through the slides (34) at the other ends of the two groups of rotating shafts; A length detector (24) is installed on the inner bottom surface of the box body (6) near the two feeding pipes (17), two telescopic cylinders (20) are installed at the top of the top plate (7) near the box body (6), and the extended ends of the two telescopic cylinders (20) pass through the box body (6) and are connected to arc-shaped electromagnets (35), and two guide plates are installed in an inclined state on the inner bottom surface of the box body (6) near the two feeding pipes (17), and the outer wall of the box body (6) near the lower end of the two guide plates is installed with a discharge pipe (23), and a collection box (22) is placed on the top of the top plate (7) near the two discharge pipes (23); The automatic material discharge mechanism comprises two placement grooves (13) opened inside the placement plate (12), the bottoms of the two feeding pipes (17) are respectively located directly above the two placement grooves (13), two inclined hanging rods (11) are installed inside the two placement grooves (13), a baffle (26) is rotatably installed at the lower end of the placement plate (12) close to the hanging rod (11), the bottom end of the baffle (26) is fixedly connected to a bent portion bent toward the placement plate (12), the top of the baffle (26) is connected to a magnet block, and a start button (5) and a display screen (3) are installed at the top edge of the top plate (7); An electric telescopic rod (25) is installed at a position near the baffle (26) at the bottom of the top plate (7), and the extended end of the electric telescopic rod (25) is connected to a magnetic plate (10), the top of the magnetic block is magnetically adsorbed to the bottom of the magnetic plate (10), and a collecting mechanism for collecting the rivet nuts after detection is provided at a position near the baffle (26) at the top of the leak detector body (1).

2. A rivet nut leak detection machine according to claim 1, characterized in that: The collecting mechanism comprises a collecting trough (8) mounted on the top of the leak detector body (1) via two supporting rods, the feeding end of the collecting trough (8) being close to the lower end of the hanging rod (11), and the discharging end of the collecting trough (8) extending into the interior of the leak detector body (1).

3. The rivet nut leak detection machine according to claim 2, characterized in that: Buffer plates (27) are symmetrically mounted at the inlet and outlet ends of the collecting trough (8); a buffer spring (28) is connected between the buffer plate (27) and the collecting trough (8); a buffer pad is bonded to the outer wall of the buffer plate (27) on a side away from the collecting trough (8); a collecting box (14) is slidably mounted inside the leak detector body (1); and the outlet end of the collecting trough (8) is located directly above the collecting box (14).

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