An earphone charging box surface flaw detection device

Abstract

This invention discloses a device for detecting surface defects in earphone charging cases, relating to the field of earphone charging case surface inspection. It solves the problem of existing inspection devices being unable to perform multi-angle inspections of charging cases. The device includes: a drive base and a conveyor belt installed inside the drive base; two drive motors are fixedly installed on the outside of the drive base; multiple charging cases are arranged on the top of the conveyor belt; and two laser detection probes are arranged on the top of the drive base. It also includes: a positioning mechanism for positioning, clamping, and rotating the charging cases for inspection. The positioning mechanism is installed on the top of the drive base and includes a U-shaped frame positioned above the drive base. This invention uses a multi-point clamping and positioning method to clamp, position, and lift the charging case body. During the movement of the charging case body, it rotates, allowing the two laser detection probes to perform multi-angle inspections of the charging case body, thereby improving the inspection efficiency of the charging case body.

Description

Technical Field

[0001] This invention relates to the field of surface inspection of earphone charging cases, specifically to a device for detecting surface defects in earphone charging cases. Background Technology

[0002] The earphone charging case is a portable charging device designed specifically for Bluetooth earphones. It is usually a small box-shaped design that integrates charging circuitry and a battery. It is used to store and provide power to the Bluetooth earphones. When the user's Bluetooth earphones run out of power, they only need to put the earphones into the charging case and secure them with magnets or slots to start the charging process automatically. No additional operation is required, which greatly simplifies the user experience.

[0003] Currently, the detection of surface defects in headphone charging cases during production mainly relies on manual visual inspection or traditional optical inspection equipment. While manual inspection methods are flexible, they suffer from low efficiency, strong subjectivity, and high failure rates due to fatigue, making them unsuitable for large-scale production. Traditional optical inspection equipment typically uses fixed cameras, but due to the complex features of the charging case surface, such as curved surfaces and reflective areas, single-angle shooting cannot fully cover all inspection areas, easily leading to missed defects. Furthermore, existing inspection equipment generally lacks high-precision positioning mechanisms, causing the charging case to shift position during inspection, further affecting inspection accuracy. These technical deficiencies mainly stem from the fact that existing equipment cannot achieve multi-angle, all-round image acquisition and lacks a stable and reliable positioning mechanism, thus restricting the improvement of inspection accuracy and efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a device for detecting surface defects in earphone charging cases, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A device for detecting surface defects in an earphone charging case includes: a drive base and a conveyor belt installed inside the drive base; two drive motors, each cooperating with the conveyor belt, are fixedly installed on the outside of the drive base; multiple charging case bodies are equidistantly distributed on the top of the conveyor belt; and two symmetrically distributed laser detection probes are installed on the top of the drive base. The device also includes: a positioning mechanism for positioning, clamping, and rotating the charging case bodies; the positioning mechanism is installed on the top of the drive base, and includes components positioned above the drive base. The system includes a U-shaped frame for positioning and clamping the charging case body; a pushing mechanism for comprehensive inspection of the charging case body, the pushing mechanism being installed inside the U-shaped frame and including a baffle frame that can push the charging case body horizontally; and a cleaning mechanism for cleaning dust from the surface of the charging case body, the cleaning mechanism being installed above the U-shaped frame and including a nozzle that can spray air to remove dust from the charging case body.

[0007] Preferably, the positioning mechanism further includes a mounting bracket fixedly installed on the top of the drive seat. Four symmetrically distributed slides are fixedly installed on the inner side of the mounting bracket, and a movable plate is slidably installed between the four slides. Two symmetrically distributed electric telescopic rods are fixedly installed on the top of the drive seat, and the bottom ends of the electric telescopic rods are fixedly connected to the top of the movable plate. The laser detection probe is installed on the bottom of the movable plate. The U-shaped frame has a hollow structure, and two symmetrically distributed U-shaped frames are fixedly installed on the outer side of the U-shaped frame. An electric push rod is fixedly installed on the outer side of the U-shaped frame, and a pusher is slidably installed on the inner side of the U-shaped frame. One end of the rod is fixedly connected to the outer side of the push frame. A first elastic pressure rod and four second elastic pressure rods distributed symmetrically in a central manner are fixedly installed on the outer side of the push frame. The first elastic pressure rod is located between the four second elastic pressure rods. Both the first elastic pressure rod and the second elastic pressure rod are slidably installed on the inner side of the U-shaped frame. A rotating cylinder is fixedly installed on the outer side of the U-shaped frame. A sleeve rod is rotatably installed on the outer side of the rotating cylinder. The sleeve rod is fixedly installed at the bottom of the moving plate. An L-shaped support plate is fixedly installed on the inner side of the mounting frame. A rack is fixedly installed on the outer side of the L-shaped support plate. A gear that meshes with the rack is fixedly installed on the outer side of the rotating cylinder.

[0008] Preferably, the pushing mechanism further includes a prismatic rod fixedly installed on the side of the baffle away from the charging box body. The prismatic rod is slidably installed on the inner side of the rotating cylinder. The baffle has a hollow structure. A tension spring is fixedly installed between the side of the baffle near the U-shaped frame and the inner side of the U-shaped frame. A spherical abutment is fixedly installed at the end of the prismatic rod away from the baffle. A groove for limiting the sliding of the spherical abutment is opened at the end of the rotating cylinder away from the baffle. Two symmetrically distributed positioning frames are fixedly installed on the inner side of the mounting frame. A baffle is fixedly installed between the two positioning frames. The baffle is located directly above the spherical abutment, and the bottom of the baffle has an inclined structure. Pressure balls are rotatably installed at the ends of the first elastic pressure rod and the second elastic pressure rod away from the pushing frame.

[0009] Preferably, the cleaning mechanism further includes a telescopic airbag fixedly installed between the movable plate and the mounting frame, the nozzle fixedly installed at the bottom of the movable plate, the nozzle being connected to the telescopic airbag via a hose, a protective frame fixedly installed at the top of the movable plate, the telescopic airbag being located inside the protective frame, a plurality of equally spaced baffles fixedly installed at the top of the protective frame, the baffles slidingly penetrating the top of the mounting frame, a limit frame being provided at the top of the mounting frame, and the baffles being fixedly installed at the bottom of the limit frame.

[0010] Preferably, a detection host is fixedly installed on the top of the movable plate, and the laser detection probe is connected to the detection host through the movable plate.

[0011] Preferably, a support cylinder is slidably installed on the outer side of both the first elastic pressure rod and the second elastic pressure rod, and the support cylinder is fixedly installed on the inner side of the U-shaped frame.

[0012] Preferably, a stop plate is provided below the gear, a locking tooth is fixedly installed on the inner side of the stop plate, a first sliding rod is fixedly installed on the top of the stop plate, the first sliding rod is slidably installed on the inner side of the L-shaped support plate, and a spring is fixedly installed between the top end of the first sliding rod and the inner side of the L-shaped support plate.

[0013] Preferably, a limiting block is fixedly installed at one end of the first slide rod near the spring, and a sliding cavity is provided on the inner side of the L-shaped support plate for the limiting block to slide in a limited manner.

[0014] Preferably, a fixing plate is fixedly installed on the inner side of the mounting bracket, and four second sliding rods arranged in a rectangular array are slidably installed on the outer side of the fixing plate. A protective plate is fixedly installed between the four second sliding rods, and the bottom of the protective plate and the baffle are on the same horizontal line. An adjusting screw is rotatably installed on the side of the protective plate near the fixing plate, and a screw cylinder that cooperates with the adjusting screw is fixedly installed on the outer side of the fixing plate.

[0015] Preferably, the side of the protective plate away from the adjusting screw is made of rubber.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. This invention, through a positioning mechanism, enables the conveyor belt to sequentially transport multiple charging box bodies, and keeps the charging box bodies on the inner side of the U-shaped frame. The charging box bodies are clamped, positioned, and lifted using a multi-point clamping positioning method. During the movement of the charging box bodies, they are in a rotating state, allowing two laser detection probes to detect the charging box bodies from multiple angles, thereby improving the detection efficiency of the charging box bodies.

[0018] 2. The present invention uses a pushing mechanism to move the spherical block to the outside of the baffle during the upward movement of the U-shaped frame. The spherical block can then push the baffle frame to move via the prismatic rod, causing the charging box body to move along the outside of the pressure ball and change the clamping point of the pressure ball on the charging box body. This achieves the effect of comprehensive inspection of the charging box body and prevents any omissions.

[0019] 3. The present invention, through a cleaning mechanism, can compress the telescopic airbag during the upward movement of the moving plate. The air inside the telescopic airbag can be discharged downward from the nozzle to clean the charging box body in the rotating state by jet cleaning, preventing impurities and dust on the surface of the charging box body from affecting the accuracy of the laser detection probe, thereby improving the accuracy of the detection of the charging box body. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the mounting frame and movable plate structure in this invention;

[0022] Figure 3 This is a schematic diagram of the sleeve rod and U-shaped frame structure in this invention;

[0023] Figure 4 for Figure 3 Enlarged structural diagram of area A in the middle;

[0024] Figure 5 This is a schematic diagram of the structure of the marking strip and the drive seat in this invention;

[0025] Figure 6 This is a schematic diagram of the abutment plate and locking teeth structure in this invention;

[0026] Figure 7 This is a schematic diagram of the baffle frame and spherical abutment structure in this invention;

[0027] Figure 8This is a schematic diagram of the protective plate and adjusting screw structure in this invention.

[0028] In the diagram: 1. Drive base; 2. Conveyor belt; 3. Drive motor; 4. Charging box body; 5. Laser detection probe; 6. U-shaped frame; 7. Baffle frame; 8. Nozzle; 9. Mounting bracket; 10. Slide carriage; 11. Moving plate; 12. Electric telescopic rod; 13. U-shaped frame; 14. Electric push rod; 15. Push frame; 16. First elastic pressure rod; 17. Second elastic pressure rod; 18. Rotary drum; 19. Sleeve rod; 20. L-shaped support plate; 21. Rack; 22. Gear 23. Wheel; 24. Prism-shaped rod; 25. Tension spring; 26. Spherical stop block; 27. Positioning frame; 28. Baffle; 29. ​​Pressure ball; 30. Telescopic airbag; 31. Protective frame; 32. Stop bar; 33. Limiting frame; 34. Detection host; 35. Support cylinder; 36. Stop plate; 37. Clamping tooth; 38. First slide rod; 39. Spring; 40. Limiting block; 41. Fixing plate; 42. Second slide rod; 43. Protective plate; 44. Adjusting screw; 45. Screw barrel. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figures 1-8 The diagram illustrates a device for detecting surface defects in an earphone charging case. It includes a drive base 1 and a conveyor belt 2 installed inside the drive base 1. The conveyor belt 2 transports the earphone charging case to be inspected at a constant speed. Two drive motors 3, each cooperating with the conveyor belt 2, are fixedly installed on the outside of the drive base 1, providing power to the conveyor belt 2. Multiple charging case bodies 4 are equidistantly distributed on the top of the conveyor belt 2, allowing the conveyor belt 2 to transport the charging case bodies 4. Two symmetrically distributed laser detection probes 5 are installed on the top of the drive base 1, used to detect surface defects in the charging case bodies 4 on the conveyor belt 2. The device also includes a positioning mechanism for positioning, clamping, and rotating the charging case bodies 4, which is installed on the top of the drive base 1.

[0031] The positioning mechanism includes a U-shaped frame 6 positioned above the drive base 1, which can position and clamp the charging box body 4. The positioning mechanism also includes a mounting bracket 9 fixedly installed on the top of the drive base 1. Four symmetrically distributed slides 10 are fixedly installed on the inner side of the mounting bracket 9, and a movable plate 11 is slidably installed between the four slides 10. Two symmetrically distributed electric telescopic rods 12 are fixedly installed on the top of the drive base 1. The bottom end of the electric telescopic rod 12 is fixedly connected to the top of the movable plate 11, allowing the electric telescopic rod 12 to drive the movable plate 11 to move vertically up and down along the outer side of the slides 10. A laser detection probe 5 is installed at the bottom of the movable plate 11. The U-shaped frame 6 has a hollow structure, increasing the detection surface of the laser detection probe 5 on the charging box body 4. The outer side of the U-shaped frame 6... Two symmetrically distributed U-shaped frames 13 are fixedly installed. An electric push rod 14 is fixedly installed on the outer side of the U-shaped frame 13, and a push frame 15 is slidably installed on the inner side of the U-shaped frame 13. One end of the electric push rod 14 is fixedly connected to the outer side of the push frame 15. A first elastic pressure rod 16 and four centrally symmetrically distributed second elastic pressure rods 17 are fixedly installed on the outer side of the push frame 15, with the first elastic pressure rod 16 located between the four second elastic pressure rods 17. The first elastic pressure rod 16 and the second elastic pressure rods 17 are slidably installed on the inner side of the U-shaped frame 6, so that the electric push rod 14 pushes the first elastic pressure rod 16 and the second elastic pressure rods 17 closer to the charging box body 4 through the push frame 15. The first elastic pressure rod 16 abuts against the outer side of the charging box body 4, while the four second elastic pressure rods 17 abut against the charging box body 4. The rounded corners of the charging box body 4 are used for positioning and clamping. A rotating cylinder 18 is fixedly installed on the outer side of the U-shaped frame 6, and a sleeve rod 19 is rotatably installed on the outer side of the rotating cylinder 18. The sleeve rod 19 is fixedly installed at the bottom of the moving plate 11, so that when the moving plate 11 moves, the sleeve rod 19 can pull the rotating cylinder 18 upward. The rotating cylinder 18 drives the U-shaped frame 6 to move synchronously, causing the charging box body 4 to move upward. An L-shaped support plate 20 is fixedly installed on the inner side of the mounting frame 9, and a rack 21 is fixedly installed on the outer side of the L-shaped support plate 20. A gear 22 that meshes with the rack 21 is fixedly installed on the outer side of the rotating cylinder 18, so that when the rotating cylinder 18 moves upward, the gear 22 can contact the rack 21. The rack 21 can then drive the U-shaped frame 6 to rotate through the gear 22 and the rotating cylinder 18, causing the charging box body 4 to move upward. Two laser detection probes 5 perform multi-angle detection on the charging box body 4. A detection host 33 is fixedly installed on the top of the moving plate 11. The laser detection probes 5 are connected to the detection host 33 through the moving plate 11, allowing the laser detection probes 5 to transmit detection data to the detection host 33. The detection host 33 compiles the detection data of the charging box body 4. Support cylinders 34 are slidably installed on the outer sides of the first elastic pressure rod 16 and the second elastic pressure rod 17. The support cylinders 34 are fixedly installed on the inner side of the U-shaped frame 6 to improve the stability of the movement of the first elastic pressure rod 16 and the second elastic pressure rod 17. A stop plate 35 is provided below the gear 22. A locking tooth 36 is fixedly installed on the inner side of the stop plate 35. When the gear 22 contacts the locking tooth 36, the locking tooth 36 can lock the gear 22.A first sliding rod 37 is fixedly installed on the top of the abutment plate 35. The first sliding rod 37 is slidably installed on the inner side of the L-shaped support plate 20. A spring 38 is fixedly installed between the top of the first sliding rod 37 and the inner side of the L-shaped support plate 20. When the gear 22 moves upward and approaches the L-shaped support plate 20, the spring 38 pulls the first sliding rod 37 upward. The first sliding rod 37 drives the abutment plate 35 to move synchronously, so that the locking teeth 36 inside the abutment plate 35 keeps locking the gear 22. When the gear 22 is close to the rack 21, the abutment plate 35 contacts the bottom end of the L-shaped support plate 20, and the gear 22 can move away from the abutment plate 35. The locking teeth 36 can release the lock on the gear 22. A limiting block 39 is fixedly installed on the end of the first sliding rod 37 near the spring 38. A sliding cavity is opened on the inner side of the L-shaped support plate 20 for the limiting block 39 to slide, so that the limiting block 39 provides auxiliary support for the first sliding rod 37.

[0032] Example 2: Please refer to Figures 1-8This embodiment further illustrates Example 1. The pushing mechanism shown in the figure includes a baffle 7 disposed inside the U-shaped frame 6. The baffle 7 can push the charging box body 4 to move horizontally. The pushing mechanism also includes a prismatic rod 23 fixedly installed on the side of the baffle 7 away from the charging box body 4. The prismatic rod 23 is slidably installed on the inner side of the rotating cylinder 18. The baffle 7 has a hollow structure. A tension spring 24 is fixedly installed between the side of the baffle 7 near the U-shaped frame 6 and the inner side of the U-shaped frame 6. A spherical abutment 25 is fixedly installed at the end of the prismatic rod 23 away from the baffle 7. A groove for limiting the sliding of the spherical abutment 25 is opened at the end of the rotating cylinder 18 away from the baffle 7. The inner side of the mounting frame 9 is fixedly installed with... There are two symmetrically distributed positioning frames 26, with a baffle 27 fixedly installed between them. The baffle 27 is located directly above the spherical abutment 25, and its bottom is inclined. When the rotating cylinder 18 moves upward, it can cause the spherical abutment 25 on the prismatic rod 23 to contact the inclined surface of the baffle 27. When the spherical abutment 25 moves to the side of the baffle 27, the reaction force of the baffle 27 on the spherical abutment 25 pushes the prismatic rod 23 to move along the inner side of the rotating cylinder 18. The prismatic rod 23 can then push the baffle frame 7, causing the baffle frame 7 to stretch the tension spring 24. The baffle frame 7 can then push the charging box body 4 to move. Both the first elastic pressure rod 16 and the second elastic pressure rod 17 have pressure balls 28 rotatably mounted at their ends away from the pusher 15. When the baffle 7 pushes the charging box body 4 to move, the charging box body 4 can move along the outside of the pressure balls 28, changing the clamping position of the charging box body 4 and achieving a comprehensive inspection of the charging box body 4. A fixing plate 40 is fixedly installed on the inner side of the mounting bracket 9. Four second sliding rods 41 arranged in a rectangular array are slidably installed on the outer side of the fixing plate 40. A protective plate 42 is fixedly installed between the four second sliding rods 41, and the bottom of the protective plate 42 is on the same horizontal line as the baffle 27. When the charging box body 4 moves, the protective plate 42 can provide support for the charging box. The side of the main body 4 away from the retaining frame 7 provides protection to prevent it from falling off. An adjusting screw 43 is rotatably installed on the side of the protective plate 42 near the fixing plate 40. A screw cylinder 44 that cooperates with the adjusting screw 43 is fixedly installed on the outer side of the fixing plate 40. The operator can rotate the adjusting screw 43 to move it along the inner side of the screw cylinder 44. Under the limit of the second slide rod 41, the adjusting screw 43 can pull the protective plate 42 to move horizontally, so that the position of the protective plate 42 can be adjusted according to the length of the charging box body 4. The side of the protective plate 42 away from the adjusting screw 43 is made of rubber to provide cushioning protection for the displacement of the charging box body 4.

[0033] Example 3: Please refer to Figures 1-3This embodiment further illustrates other embodiments. The cleaning mechanism shown in the figure includes a nozzle 8 disposed above the U-shaped frame 6. The nozzle 8 can spray air to remove dust from the charging box body 4. The cleaning mechanism also includes a telescopic airbag 29 fixedly installed between the moving plate 11 and the mounting frame 9. The nozzle 8 is fixedly installed at the bottom of the moving plate 11. The nozzle 8 is connected to the telescopic airbag 29 through a hose. When the moving plate 11 moves, it can compress the telescopic airbag 29, causing the air inside the telescopic airbag 29 to be discharged from the nozzle 8 through the hose. The nozzle 8 can then spray air onto the charging box body 4, facilitating the cleaning of dust on the surface of the charging box body 4 and preventing impurities or dust on the surface of the charging box body 4 from affecting the accuracy of the laser detection probe 5. Furthermore, a one-way air intake valve is provided on the top of the telescopic airbag 29, allowing outside air to be drawn into the telescopic airbag 29 through the one-way air intake valve when the moving plate 11 moves downward. A protective frame 30 is fixedly installed on the top of the moving plate 11, and the telescopic airbag 29 is located inside the protective frame 30. Multiple equally spaced baffles 31 are fixedly installed on the top of the protective frame 30. The baffles 31 slide through the top of the mounting frame 9. A limit frame 32 is provided on the top of the mounting frame 9, and the baffles 31 are fixedly installed at the bottom of the limit frame 32. When the moving plate 11 moves upward, the baffles 31 can be moved along the inner side of the mounting frame 9 through the protective frame 30, so that the baffles 31 keep protecting the telescopic airbag 29 and prevent the telescopic airbag 29 from tilting.

[0034] Working principle: First, the operator places the charging box body 4 to be tested onto the conveyor belt 2 in sequence, and starts the drive motor 3, causing the drive motor 3 to drive the conveyor belt 2 to rotate and move. The conveyor belt 2 moves the first charging box body 4 to the inside of the U-shaped frame 6. At this time, the drive motor 3 stops running, and the two electric push rods 14 run. The electric push rods 14 push the push frame 15 to move along the inside of the U-shaped frame 13. The push frame 15 pushes the first elastic pressure rod 16 and the four second elastic pressure rods 17 close to the charging box body 4. The four second elastic pressure rods 17 abut against the rounded corners of the charging box body 4 through the pressure ball 28, while the first elastic pressure rod 16 abuts against the outside of the charging box body 4 through the pressure ball 28, completing the clamping and positioning of the charging box body 4. Subsequently, the electric telescopic rod 12 operates, pulling the moving plate 11 upward along the outer side of the slide 10. The moving plate 11, through the sleeve rod 19, pulls the rotating cylinder 18 upward and compresses the telescopic airbag 29, causing the air inside the airbag 29 to be discharged through the hose from the nozzle 8. The nozzle 8 sprays air to clean the charging box body 4. The rotating cylinder 18 drives the U-shaped frame 6 upward, causing the charging box body 4 inside the U-shaped frame 6 to move upward. When the gear 22 contacts the rack 21 on the L-shaped support plate 20, the rack 21 drives the rotating cylinder 18 to rotate through the gear 22, causing the rotating cylinder 18 to rotate during its upward movement. The rotating cylinder 18 drives the U-shaped frame 6 to rotate synchronously, causing the charging box body 4 to rotate synchronously. As the device rotates, the detection host 33 activates two laser detection probes 5 to inspect the surface defects of the rotating charging box body 4. Simultaneously, the nozzle 8 thoroughly cleans the rotating charging box body 4, preventing dust and impurities from affecting the accuracy of the laser detection probes 5. Then, the prismatic rod 23 inside the rotating cylinder 18 contacts the inclined surface of the baffle 27. When the spherical abutment 25 moves to the side of the baffle 27, the reaction force of the baffle 27 on the spherical abutment 25 pushes the prismatic rod 23 along the inner side of the rotating cylinder 18. The prismatic rod 23 drives the baffle frame 7 to move synchronously, stretching the tension spring 24. The baffle frame 7 then pushes the charging box body 4. The pressure ball 28 is moved and the clamping point of the charging box body 4 is changed, so that the laser detection probe 5 can fully detect the charging box body 4. Then, the electric telescopic rod 12 pushes the moving plate 11 downward to reset, so that the charging box body 4 comes into contact with the conveyor belt 2 again. The electric push rod 14 pulls the first elastic pressure rod 16 and the second elastic pressure rod 17 away from the charging box body 4 through the push frame 15. Finally, the electric telescopic rod 12 pulls the moving plate 11 upward again, so that the U-shaped frame 6 is away from the charging box body 4, so that the conveyor belt 2 transports the detected charging box body 4 and moves the next charging box body 4 to be detected to the bottom of the U-shaped frame 6, thereby achieving the effect of full detection and facilitating continuous detection of the charging box body 4.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for detecting surface defects in an earphone charging case, characterized in that, include: The drive base and the conveyor belt installed inside the drive base are equipped with two drive motors fixedly installed on the outside of the drive base. Multiple charging box bodies are set on the top of the conveyor belt, and two laser detection probes are set on the top of the drive base. Also includes: A positioning mechanism is used for positioning, clamping, and rotating the charging case body. The positioning mechanism is mounted on the top of the drive base and includes a U-shaped frame positioned above the drive base, which clamps and positions the charging case body. The positioning mechanism also includes a mounting bracket mounted on the top of the drive base. Four slides are fixedly mounted on the inner side of the mounting bracket, and a movable plate is slidably mounted between the four slides. Two electric telescopic rods are fixedly mounted on the top of the drive base, with their bottom ends fixedly connected to the top of the movable plate. A laser detection probe is mounted on the bottom of the movable plate. Two U-shaped frames are fixedly mounted on the outer side of the U-shaped frame, with electric push rods mounted on the outer side of the U-shaped frames. A pusher is slidably mounted on the inner side of the U-shaped frames, with one end of the electric push rod fixedly connected to the outer side of the pusher. A first elastic pressure rod is fixedly mounted on the outer side of the pusher. Four second elastic pressure rods are provided, with the first elastic pressure rod located between the four second elastic pressure rods. Both the first and second elastic pressure rods are slidably installed on the inner side of the U-shaped frame. A rotating cylinder is fixedly installed on the outer side of the U-shaped frame, and a sleeve rod is rotatably installed on the outer side of the rotating cylinder. The sleeve rod is installed at the bottom of the movable plate. An L-shaped support plate is fixedly installed on the inner side of the mounting frame, and a rack is installed on the outer side of the L-shaped support plate. A gear is fixedly installed on the outer side of the rotating cylinder, and a stop plate is provided below the gear. A locking tooth is fixedly installed on the inner side of the stop plate, and a first sliding rod is fixedly installed on the top of the stop plate. The first sliding rod is slidably installed on the inner side of the L-shaped support plate, and a spring is fixedly installed between the top of the first sliding rod and the inner side of the L-shaped support plate. A limit block is fixedly installed at the end of the first sliding rod near the spring, and a sliding cavity for the limit block to slide is opened on the inner side of the L-shaped support plate. The pushing mechanism is used to perform a comprehensive inspection of the charging box body. The pushing mechanism is installed on the inside of the U-shaped frame and includes a baffle frame set on the inside of the U-shaped frame. The baffle frame can push the charging box body to move horizontally. The cleaning mechanism is used to clean the dust on the surface of the charging case. The cleaning mechanism is installed above the U-shaped frame and includes a nozzle set above the U-shaped frame. The nozzle can spray air to remove dust from the charging case.

2. The device for detecting surface defects in an earphone charging case according to claim 1, characterized in that: The pushing mechanism also includes a prismatic rod installed on one side of the baffle frame. The prismatic rod is slidably installed on the inner side of the rotating drum. A tension spring is fixedly installed between one side of the baffle frame and the inner side of the U-shaped frame. A spherical abutment is fixedly installed at one end of the prismatic rod. A groove for limiting the sliding of the spherical abutment is opened at one end of the rotating drum. Two positioning frames are fixedly installed on the inner side of the mounting frame. A baffle is fixedly installed between the two positioning frames. The bottom of the baffle has an inclined structure. A pressure ball is rotatably installed at one end of both the first elastic pressure rod and the second elastic pressure rod.

3. The device for detecting surface defects in an earphone charging case according to claim 1, characterized in that: The cleaning mechanism also includes a telescopic airbag fixedly installed between the movable plate and the mounting frame. The nozzle is installed at the bottom of the movable plate and is connected to the telescopic airbag through a hose. A protective frame is installed on the top of the movable plate. Multiple baffles are fixedly installed on the top of the protective frame. The baffles slide through the top of the mounting frame. A limit frame is provided on the top of the mounting frame, and the baffles are installed at the bottom of the limit frame.

4. The device for detecting surface defects in an earphone charging case according to claim 1, characterized in that: The top of the movable plate is equipped with a detection host, and the laser detection probe is connected to the detection host through the movable plate.

5. The device for detecting surface defects in an earphone charging case according to claim 1, characterized in that: Both the first and second elastic pressure rods have support cylinders slidably installed on their outer sides, and the support cylinders are installed on the inner side of the U-shaped frame.

6. The device for detecting surface defects in an earphone charging case according to claim 2, characterized in that: A fixing plate is fixedly installed on the inner side of the mounting bracket, and four second sliding rods are slidably installed on the outer side of the fixing plate. A protective plate is fixedly installed between the four second sliding rods. An adjusting screw is rotatably installed on one side of the protective plate, and a screw cylinder that cooperates with the adjusting screw is fixedly installed on the outer side of the fixing plate.

7. The device for detecting surface defects in an earphone charging case according to claim 6, characterized in that: One side of the protective plate is made of rubber.

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