Multifunctional visual inspection device for earplug processing

Abstract

The invention relates to the technical field of earplug processing visual inspection, and discloses a multifunctional visual inspection device for earplug processing, which comprises a base, a hollow shaft is rotatably connected to the base, a turntable is fixed on the hollow shaft, a plurality of arc-shaped tooth blocks are rotatably connected to the turntable, hollow rods are rotatably connected to the arc-shaped tooth blocks, and the hollow rods are fixed on the turntable. A hollow rod is arranged on the rotating disc, a vacuum suction cup is connected to the hollow rod, a connecting plate is arranged above the rotating disc, a dust hood is rotationally arranged on the connecting plate, a first abutting rod is fixed to the connecting plate, a plurality of banister brush blocks are fixed in the dust hood, and a detection camera is arranged on one side of the rotating disc; in the earplug detection process, dust and impurities attached to the detection earplugs can be sucked away, when the dust suction hood and the banister brush block rotate synchronously, the attached stubborn impurities can be brushed away, and therefore the cleaning effect on the detection earplugs and the detection precision are further improved.

Description

Technical Field

[0001] This invention relates to the field of visual inspection technology for earplug processing, specifically a multifunctional visual inspection device for earplug processing. Background Technology

[0002] Earplugs, especially silent earplugs used in high-end audio equipment, hearing aids, or as accessories for precision consumer electronics, have their appearance quality directly impacting user experience and product value. These products are typically small, finely crafted, and often made of dark, highly reflective, or soft, porous materials. During the manufacturing process, the surface of earplugs is highly susceptible to the accumulation of micro-contaminants such as dust, fibers, and mold release agent residue due to demolding, transportation, and environmental factors, potentially resulting in various appearance defects such as burrs, scratches, dents, and missing material.

[0003] Currently, the industry widely adopts automated optical inspection devices based on machine vision to replace manual visual inspection in order to improve inspection efficiency and consistency. However, existing earplug visual inspection devices are usually single-function and have significant limitations. Dust and fibers adhering to their surfaces are similar to the features of real pits and black spots in the image, causing the system to generate a large number of "false alarms" and judge qualified products as defective products. This makes the inspection results unable to truly reflect the process level. Hard particles that are not removed may scratch the product surface during subsequent handling or inspection, causing secondary damage. Summary of the Invention

[0004] This invention provides a multifunctional visual inspection device for earplug processing. It can remove dust and impurities adhering to the earplugs being inspected. When the dust suction hood and soft brush block rotate synchronously, stubborn impurities can be brushed away, thereby further improving the cleaning effect and inspection accuracy of the earplugs. This solves the problems mentioned in the background art, where existing earplug visual inspection devices typically have limited functionality and significant limitations. The dust and fibers adhering to their surfaces resemble real pits and black spots in the image, leading to numerous false alarms and misclassifying qualified products as defective. This results in inspection results that do not accurately reflect the process level, and unremoved hard particles may scratch the product surface during subsequent handling or inspection, causing secondary damage.

[0005] The present invention provides the following technical solution: a multifunctional visual inspection device for earplug processing, comprising a base, a hollow shaft rotatably connected to the base, a turntable fixed on the hollow shaft, a plurality of arc-shaped toothed blocks rotatably connected to the turntable, a hollow rod rotatably connected to the arc-shaped toothed blocks, a vacuum suction cup connected to the hollow rod, a connecting plate provided above the turntable, a dust suction hood rotatably mounted on the connecting plate, and a first abutting rod fixed on the connecting plate, a plurality of soft brush blocks fixed inside the dust suction hood, and an inspection camera provided on one side of the turntable; A movable first abutment bracket is provided below the first abutment rod, and one end of the first abutment bracket abuts against the second abutment rod. A first mounting seat is fixed on the base, and a light shield is fixed on the first mounting seat.

[0006] As an optional embodiment of the multifunctional visual inspection device for earplug processing described in this invention, wherein: an L-shaped bracket is fixed on the base, a first electric push rod is fixed on the L-shaped bracket, the piston rod of the first electric push rod is elastically connected to the connecting plate through a first spring, a first servo motor for driving the dust collection cover to rotate is fixed on the connecting plate, a second servo motor for driving the hollow shaft to rotate is fixed on the base, a second electric push rod is fixed on the base, and the piston rod of the second electric push rod is fixedly connected to the inspection camera.

[0007] As an optional embodiment of the multifunctional visual inspection device for earplug processing described in this invention, wherein: a plurality of positioning wedges are slidably connected to the vacuum suction cup, an annular plate is connected to the positioning wedges, the annular plate is elastically connected to the positioning wedges by a second spring, and the hollow shaft is connected to the hollow rod by an air supply hose.

[0008] As an optional embodiment of the multifunctional visual inspection device for earplug processing described in this invention, wherein: an abutment head is provided below the connecting plate, the abutment head is elastically connected to the first abutment rod through a third spring, and a first abutment wedge is fixed on the piston rod of the first electric push rod.

[0009] As an optional embodiment of the multifunctional visual inspection device for earplug processing described in this invention, wherein: the arc-shaped toothed block is meshed with a first rack, a first sliding bracket is fixed on the first rack, the first sliding bracket is elastically connected to the turntable via a fourth spring, two guide blocks are fixed on the base, the first abutting bracket is elastically connected to one of the guide blocks via a fifth spring, and the second abutting rod is slidably connected to the first mounting base.

[0010] As an optional solution of the multifunctional visual inspection device for earplug processing described in this invention, wherein: a gear is fixed on the hollow rod, a second rack is provided on one side of the turntable, the second rack is elastically connected to the light shield through a sixth spring, and one end of the second rack abuts against a first rocker plate, the first rocker plate being rotatably connected to the first mounting base.

[0011] As an optional embodiment of the multifunctional visual inspection device for earplug processing described in this invention, wherein: the other end of the first rocker plate abuts against a second abutting bracket, the second abutting bracket is slidably connected to another guide block, and a third abutting rod is fixed on the piston rod of the first electric push rod.

[0012] As an optional embodiment of the multifunctional visual inspection device for earplug processing described in this invention, wherein: a mounting block is fixed on the light shield, an L-shaped abutment block is slidably connected to the mounting block, an abutment strip is abutted on the L-shaped abutment block, the abutment strip is fixed on the second rack, a second rocker is rotatably connected to the mounting block, a torsion spring is connected between the second rocker and the abutment strip, and one end of the second rocker abuts against the L-shaped abutment block.

[0013] As an optional embodiment of the multifunctional visual inspection device for earplug processing described in this invention, wherein: a second mounting base is fixed on the base, a fourth abutment rod is slidably connected to the second mounting base, a first L-shaped pressure block is fixed on the fourth abutment rod, and a second abutment wedge is fixed to one end of the second abutment bracket.

[0014] As an optional embodiment of the multifunctional visual inspection device for earplug processing described in this invention, wherein: a third mounting base is fixed on the base, a fifth abutment rod is slidably connected to the third mounting base, a second L-shaped pressure block is fixed on the fifth abutment rod, a third abutment bracket is abutted on the fifth abutment rod, a second sliding bracket is fixed on the base, the third abutment bracket is elastically connected to the second sliding bracket through a seventh spring, and a sixth abutment rod is fixed on the inspection camera.

[0015] The present invention has the following beneficial effects:

[0016] 1. In this multi-functional visual inspection device for earplug processing, the earplug can be adsorbed and fixed by a vacuum suction cup so that the turntable on the hollow shaft can drive the earplug to rotate and move to different work positions during the inspection process. The height of the dust suction hood on the connecting plate can be adjusted by the first electric push rod so that the dust suction hood can be fitted onto the corresponding earplug. The dust suction hood is connected to the dust collection equipment and can remove dust and impurities attached to the earplug being inspected. Through the cooperation of the soft brush block on the dust suction hood and the first servo motor, the dust suction hood and the soft brush block rotate synchronously, which can brush away stubborn impurities, thereby further improving the cleaning effect and inspection accuracy of the earplug being inspected. The camera automatically acquires images of the earplug surface and uses a built-in algorithm to identify and classify defects such as scratches, burrs, stains, and dimensional deviations in real time to determine whether the product is qualified. The light shield provides a stable and clean optical imaging environment for the earplug inspection process, thereby ensuring inspection accuracy. When several positioning wedges on the annular plate slide on the vacuum suction cup, the earplug in the adsorbed state can be automatically positioned so that the center of the earplug is consistent with the center of the vacuum suction cup, which can avoid secondary damage to the product and reduce the dead corners of the soft brush block cleaning the circumference of the earplug.

[0017] 2. In this multi-functional visual inspection device for earplug processing, the cooperation of the arc-shaped toothed block, the first toothed rack, and the first sliding bracket enables the vacuum suction cup to deflect during the inspection process, thereby adjusting the inspection angle of the earplug and increasing the inspection coverage area. The cooperation of the gear on the hollow rod and the second toothed rack causes the earplug to rotate during the inspection process, so that the surface of the earplug can be fully inspected, improving the inspection quality. With the cooperation of the mounting block, L-shaped abutment block, abutment strip, and the second rocker plate on the light shield, the earplug can achieve the purpose of automatically retracting several positioning wedges into the vacuum suction cup before rotation, so as to reduce the blind spots of inspection and further improve the inspection quality and accuracy of product appearance defects. When the first electric push rod initially extends, it causes the contact head to contact the first contact bracket, so that the second contact rod pushes the first rack to move, causing the arc-shaped toothed block to automatically deflect so that the earplug can be deflected above the light shield for visual inspection. When the first electric push rod extends again, it can achieve the purpose of the third contact rod contacting the second contact bracket. With the cooperation of the second rocker plate, the second rack drives the gear to rotate so that the earplug can rotate automatically during the detection process, further reducing the detection blind spot.

[0018] 3. In this multi-functional visual inspection device for earplug processing, the second contact wedge on the second contact bracket can contact the fourth contact rod, causing it to slide on the second mounting base. When the earplug passes the inspection, it pushes the corresponding first rack, causing the vacuum suction cup to deflect along with the earplug. At the same time, the first L-shaped pressure block on the fourth contact rod can squeeze the air supply hose corresponding to the vacuum suction cup to prevent air flow, so that the qualified earplugs are automatically unloaded. The sixth contact rod on the detection camera can contact the third contact bracket, causing the third contact bracket to automatically contact the fifth contact rod, so that the fifth contact rod can slide on the third mounting base. When the earplug fails the test, it pushes the corresponding first rack, causing the vacuum suction cup and the earplug to deflect. The second L-shaped pressure block on the fifth contact rod squeezes the corresponding air supply hose to prevent air flow, so that the failed earplug is automatically unloaded. Attached Figure Description

[0019] Figure 1 This is one of the three-dimensional structural schematic diagrams of the present invention.

[0020] Figure 2 This is the second three-dimensional structural schematic diagram of the present invention.

[0021] Figure 3 This is a cross-sectional view of the structure of the present invention.

[0022] Figure 4 This is a schematic diagram of the turntable structure of the present invention.

[0023] Figure 5 This is a schematic diagram of the dust cover structure of the present invention.

[0024] Figure 6 This is one of the schematic diagrams of the light-shielding plate structure of the present invention.

[0025] Figure 7 This is the second schematic diagram of the light-shielding plate structure of the present invention.

[0026] Figure 8 for Figure 3 Enlarged view of point A in the middle.

[0027] Figure 9 for Figure 6 Enlarged view of section B in the middle.

[0028] In the diagram: 1. Base; 2. Hollow shaft; 3. Turntable; 4. Arc-shaped toothed block; 5. Hollow rod; 6. Vacuum suction cup; 7. Dust collection hood; 8. Soft brush block; 9. Connecting plate; 10. First contact rod; 11. Detection camera; 12. First contact bracket; 121. Second contact rod; 13. First mounting base; 14. Light shield; 15. L-shaped bracket; 16. First electric push rod; 17. First spring; 18. First servo motor; 19. Second servo motor; 20. Positioning wedge; 21. Annular plate; 22. Second spring; 23. Air supply hose; 24. Contact head; 25. Third spring; 26. First contact wedge; 27. Second electric push rod; 28. 29. First sliding bracket; 30. Fourth spring; 31. Guide block; 32. Fifth spring; 33. Gear; 34. First rack; 35. Sixth spring; 36. First rocker; 37. Second abutting bracket; 38. Third abutting rod; 39. Mounting block; 40. L-shaped abutting block; 41. Abutting strip; 42. Second rocker; 43. Torsion spring; 44. Second mounting base; 45. Fourth abutting rod; 46. First L-shaped pressure block; 47. Second abutting wedge; 48. Third mounting base; 49. Fifth abutting rod; 50. Second L-shaped pressure block; 51. Third abutting bracket; 52. Second sliding bracket; 53. Seventh spring; 54. Sixth abutting rod; 55. Second rack. 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 to 9A multifunctional visual inspection device for earplug processing includes a base 1, a hollow shaft 2 rotatably connected to the base 1, a turntable 3 fixed on the hollow shaft 2, a plurality of arc-shaped toothed blocks 4 rotatably connected to the turntable 3, a hollow rod 5 rotatably connected to the arc-shaped toothed blocks 4, a vacuum suction cup 6 connected to the hollow rod 5, a connecting plate 9 above the turntable 3, a dust suction hood 7 rotatably connected to the connecting plate 9, and a first contact rod 10 fixed on the connecting plate 9. A plurality of soft brush blocks 8 are fixed inside the dust suction hood 7, and an inspection camera 11 is provided on one side of the turntable 3. Below the first contact rod 10, there is a movable first contact bracket 12. One end of the first contact bracket 12 abuts against the second contact rod 121. A first mounting seat 13 is fixed on the base 1, and a light shield 14 is fixed on the first mounting seat 13.

[0031] An L-shaped bracket 15 is fixed on the base 1, and a first electric push rod 16 is fixed on the L-shaped bracket 15. The piston rod of the first electric push rod 16 is elastically connected to the connecting plate 9 through a first spring 17. A first servo motor 18 that drives the dust collection cover 7 to rotate is fixed on the connecting plate 9. A second servo motor 19 that drives the hollow shaft 2 to rotate is fixed on the base 1. A second electric push rod 27 is fixed on the base 1, and the piston rod of the second electric push rod 27 is fixedly connected to the detection camera 11.

[0032] Several positioning wedges 20 are slidably connected to the vacuum suction cup 6. An annular plate 21 is connected to the positioning wedge 20. The annular plate 21 is elastically connected to the positioning wedge 20 through the second spring 22. The hollow shaft 2 is connected to the hollow rod 5 through the air supply hose 23.

[0033] A contact head 24 is provided below the connecting plate 9. The contact head 24 is elastically connected to the first contact rod 10 through the third spring 25, and a first contact wedge 26 is fixed on the piston rod of the first electric push rod 16.

[0034] refer to Figures 1 to 8During testing, the lower end of the hollow shaft 2 is connected to a vacuum pump via a rotary joint. Through the cooperation of the hollow shaft 2, the air supply hose 23, and the hollow rod 5, the air inside the vacuum suction cup 6 is rapidly reduced, creating a partial vacuum to attract the earplug to be tested. The second servo motor 19 drives the hollow shaft 2 and the turntable 3 to rotate synchronously, causing the earplug to be tested to move directly under the dust collection hood 7. The first electric push rod 16 is activated, and its piston rod moves the connecting plate 9 downwards, causing the dust collection hood 7 to fit over the corresponding earplug. At this time, the first... The abutting rod 10 rests against the base 1. When the piston rod of the first electric push rod 16 continues to extend, the first abutting wedge 26 on the piston rod of the first electric push rod 16 can move down and abut against the abutting head 24. The piston rod of the first electric push rod 16 slides on the connecting plate 9. The first spring 17 stores force, causing the abutting head 24 to abut against the annular plate 21, so that the annular plate 21 drives several positioning wedges 20 to slide on the vacuum suction cup 6. The second spring 22 stores force so that the center of the earplug is consistent with the center of the vacuum suction cup 6, reducing the dead angle of the soft brush block 8 cleaning the circumferential surface of the earplug. The first servo motor 18 drives the dust collection hood 7 and several soft brush blocks 8 to rotate, so that the soft brush blocks 8 can brush away the impurities and dust attached to the earplugs. At the same time, the upper end of the dust collection hood 7 is connected to the vacuuming equipment through a rotary joint, so that the brushed dust and impurities can be sucked up in time, improving the accuracy of product inspection. When the cleaned earplugs are inspected, the second electric push rod 27 adjusts the movement of the inspection camera 11, so that the inspection camera 11 moves to the preset inspection height. The built-in light of the inspection camera 11 is turned on, and the light shield 14 can ensure a stable and pure optical imaging environment during the earplug inspection. The inspection camera 11 can automatically acquire the surface image of the earplugs, and through the built-in algorithm, identify and classify defects such as scratches, burrs, stains, and dimensional deviations in real time and automatically, and determine whether the product is qualified.

[0035] Example 2 is an improvement upon Example 1. For details, please refer to [link / reference]. Figures 1 to 9 The arc-shaped toothed block 4 is meshed with the first rack 33, and the first sliding bracket 28 is fixed on the first rack 33. The first sliding bracket 28 is elastically connected to the turntable 3 through the fourth spring 29. Two guide blocks 30 are fixed on the base 1. The first abutting bracket 12 is elastically connected to one of the guide blocks 30 through the fifth spring 31. The second abutting rod 121 is slidably connected to the first mounting base 13.

[0036] A gear 32 is fixed on the hollow rod 5. A second rack 54 is provided on one side of the turntable 3. The second rack 54 is elastically connected to the light shield 14 through the sixth spring 34. One end of the second rack 54 abuts against the first rocker plate 35. The first rocker plate 35 is rotatably connected to the first mounting base 13.

[0037] The other end of the first rocker 35 abuts against the second abutting bracket 36, which is slidably connected to another guide block 30. A third abutting rod 37 is fixed on the piston rod of the first electric push rod 16.

[0038] A mounting block 38 is fixed on the light-shielding plate 14. An L-shaped abutment block 39 is slidably connected to the mounting block 38. An abutment strip 40 is abutted on the L-shaped abutment block 39. The abutment strip 40 is fixed on the second rack 54. A second rocker plate 41 is rotatably connected to the mounting block 38. A torsion spring 42 is connected between the second rocker plate 41 and the abutment strip 40, and one end of the second rocker plate 41 abuts against the L-shaped abutment block 39.

[0039] refer to Figures 1 to 9 The earplug is elongated. To perform comprehensive testing and reduce blind spots, when the first contact rod 10 moves down, it contacts the first contact bracket 12, causing one side of the first contact bracket 12 to slide on one of the guide blocks 30. The fourth spring 29 stores force, causing one end of the first contact bracket 12 to contact the second contact rod 121, causing the second contact rod 121 to move vertically on the first mounting base 13. This pushes the first rack 33 corresponding to the earplug in the testing state to move, causing the first sliding bracket 28 of the first rack 33 to slide on the turntable 3. The fifth spring 31 stores force, causing... The arc-shaped toothed block 4 drives the hollow rod 5, the vacuum suction cup 6, and the earplug being detected to deflect synchronously to directly above the light shield 14. When the piston rod of the first electric push rod 16 extends for the second time, the third abutting rod 37 abuts against the second abutting bracket 36, causing the second abutting bracket 36 to slide on another guide block 30. One end of the second abutting bracket 36 pushes the first rocker plate 35 to deflect, causing the first rocker plate 35 to push the second rack 54 to move upward. This achieves the purpose of the second rack 54 meshing with the gear 32 to drive the hollow rod 5 to rotate, causing the earplug being detected to rotate automatically and increasing the detection coverage area. When the second rack 54 moves upward, it can drive the abutment strip 40 to move synchronously, so that the abutment strip 40 can abut against the L-shaped abutment block 39, causing the L-shaped abutment block 39 to slide within the mounting block 38 on the light shield 14. This allows the L-shaped abutment block 39 to push the second rocker plate 41 to deflect on the mounting block 38. The torsion spring 42 stores force, causing the other end of the second rocker plate 41 to push the annular piece 21 to move, so that several positioning wedges 20 automatically retract into the vacuum suction cup 6. When the detection camera 11 takes pictures of the circumferential surface of the earplug, it can avoid the phenomenon of earplug obstruction, thereby reducing the blind spots of detection and further improving the detection quality and accuracy of product appearance defects.

[0040] Example 3 is an improvement upon Example 1. For details, please refer to [link / reference]. Figures 1 to 9A second mounting base 43 is fixed on the base 1. A fourth abutment rod 44 is slidably connected to the second mounting base 43. A first L-shaped pressure block 45 is fixed on the fourth abutment rod 44. A second abutment wedge block 46 is fixed to one end of the second abutment bracket 36.

[0041] A third mounting base 47 is fixed on the base 1. A fifth abutment rod 48 is slidably connected to the third mounting base 47. A second L-shaped pressure block 49 is fixed on the fifth abutment rod 48. A third abutment bracket 50 is abutted on the fifth abutment rod 48. A second sliding bracket 51 is fixed on the base 1. The third abutment bracket 50 is elastically connected to the second sliding bracket 51 through a seventh spring 52. A sixth abutment rod 53 is fixed on the detection camera 11.

[0042] refer to Figures 1 to 3 When qualified earplugs are unloaded, the second contact wedge 46 on the second contact bracket 36 can contact the fourth contact rod 44 during the movement, causing the fourth contact rod 44 to slide on the second mounting base 43, pushing the first rack 33 corresponding to the qualified earplug to slide, causing the arc-shaped toothed block 4 to drive the vacuum suction cup 6 and the qualified earplug to automatically deflect. At the same time, the second L-shaped pressure block 49 on the fourth contact rod 44 squeezes the air supply hose 23 during the upward movement to prevent air flow. The vacuum suction cup 6 loses its suction force, allowing the qualified earplugs to be unloaded automatically. When unloading defective earplugs, the second electric push rod 27 moves the detection camera 11 downward, causing the sixth abutment rod 53 to contact the third abutment bracket 50. This causes the third abutment bracket 50 to slide on the second sliding bracket 51. The seventh spring 52 stores power, and the third abutment bracket 50 contacts the fifth abutment rod 48, causing the fifth abutment rod 48 to slide on the third mounting base 47. This pushes the first rack 33 corresponding to the defective earplug to slide, causing the arc-shaped toothed block 4 to drive the vacuum suction cup 6 and the defective earplug to automatically deflect. At the same time, the second L-shaped pressure block 49 on the fifth abutment rod 48 squeezes the air supply hose 23 during its upward movement to prevent airflow. The vacuum suction cup 6 loses its suction force, allowing the defective earplugs to be automatically unloaded.

[0043] The detection camera 11, the first electric push rod 16, the first servo motor 18, the second servo motor 19, and the second electric push rod 27 are all electrically connected to the controller via wires.

[0044] 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.

[0045] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A multifunctional visual inspection device for earplug processing, comprising a base (1), characterized in that: A hollow shaft (2) is rotatably connected to the base (1), a turntable (3) is fixed on the hollow shaft (2), a number of arc-shaped toothed blocks (4) are rotatably connected to the turntable (3), a hollow rod (5) is rotatably connected to the arc-shaped toothed blocks (4), a vacuum suction cup (6) is connected to the hollow rod (5), a connecting plate (9) is provided above the turntable (3), a dust suction hood (7) is rotatably connected to the connecting plate (9), and a first abutting rod (10) is fixed on the connecting plate (9). A number of soft brush blocks (8) are fixed inside the dust suction hood (7), and a detection camera (11) is provided on one side of the turntable (3). A movable first abutment bracket (12) is provided below the first abutment rod (10), and one end of the first abutment bracket (12) abuts against the second abutment rod (121). A first mounting seat (13) is fixed on the base (1), and a light shield (14) is fixed on the first mounting seat (13).

2. The multifunctional visual inspection device for earplug processing according to claim 1, characterized in that: An L-shaped bracket (15) is fixed on the base (1), and a first electric push rod (16) is fixed on the L-shaped bracket (15). The piston rod of the first electric push rod (16) is elastically connected to the connecting plate (9) through a first spring (17). A first servo motor (18) that drives the dust cover (7) to rotate is fixed on the connecting plate (9). A second servo motor (19) that drives the hollow shaft (2) to rotate is fixed on the base (1). A second electric push rod (27) is fixed on the base (1), and the piston rod of the second electric push rod (27) is fixedly connected to the detection camera (11).

3. The multifunctional visual inspection device for earplug processing according to claim 1, characterized in that: A number of positioning wedges (20) are slidably connected to the vacuum suction cup (6). An annular plate (21) is connected to the positioning wedge (20). The annular plate (21) is elastically connected to the positioning wedge (20) through a second spring (22). The hollow shaft (2) is connected to the hollow rod (5) through an air supply hose (23).

4. The multifunctional visual inspection device for earplug processing according to claim 2, characterized in that: The connecting plate (9) is provided with an abutment (24) below it. The abutment (24) is elastically connected to the first abutment rod (10) through a third spring (25), and a first abutment wedge (26) is fixed on the piston rod of the first electric push rod (16).

5. The multifunctional visual inspection device for earplug processing according to claim 2, characterized in that: The arc-shaped toothed block (4) is meshed with a first rack (33), and a first sliding bracket (28) is fixed on the first rack (33). The first sliding bracket (28) is elastically connected to the turntable (3) through a fourth spring (29). Two guide blocks (30) are fixed on the base (1). The first abutting bracket (12) is elastically connected to one of the guide blocks (30) through a fifth spring (31). The second abutting rod (121) is slidably connected to the first mounting base (13).

6. The multifunctional visual inspection device for earplug processing according to claim 5, characterized in that: A gear (32) is fixed on the hollow rod (5). A second rack (54) is provided on one side of the turntable (3). The second rack (54) is elastically connected to the light shield (14) through a sixth spring (34). One end of the second rack (54) abuts against a first rocker plate (35). The first rocker plate (35) is rotatably connected to the first mounting base (13).

7. The multifunctional visual inspection device for earplug processing according to claim 6, characterized in that: The other end of the first rocker (35) abuts against a second abutting bracket (36), the second abutting bracket (36) is slidably connected to another guide block (30), and a third abutting rod (37) is fixed on the piston rod of the first electric push rod (16).

8. The multifunctional visual inspection device for earplug processing according to claim 7, characterized in that: A mounting block (38) is fixed on the light-shielding plate (14). An L-shaped abutment block (39) is slidably connected to the mounting block (38). An abutment strip (40) abuts the L-shaped abutment block (39). The abutment strip (40) is fixed on the second rack (54). A second rocker plate (41) is rotatably connected to the mounting block (38). A torsion spring (42) is connected between the second rocker plate (41) and the abutment strip (40). One end of the second rocker plate (41) abuts the L-shaped abutment block (39).

9. The multifunctional visual inspection device for earplug processing according to claim 7, characterized in that: A second mounting base (43) is fixed on the base (1), a fourth abutment rod (44) is slidably connected on the second mounting base (43), a first L-shaped pressure block (45) is fixed on the fourth abutment rod (44), and a second abutment wedge (46) is fixed at one end of the second abutment bracket (36).

10. The multifunctional visual inspection device for earplug processing according to claim 1, characterized in that: A third mounting base (47) is fixed on the base (1). A fifth abutment rod (48) is slidably connected to the third mounting base (47). A second L-shaped pressure block (49) is fixed on the fifth abutment rod (48). A third abutment bracket (50) abuts on the fifth abutment rod (48). A second sliding bracket (51) is fixed on the base (1). The third abutment bracket (50) is elastically connected to the second sliding bracket (51) through a seventh spring (52). A sixth abutment rod (53) is fixed on the detection camera (11).

Images