A visual inspection device for appearance defects of a piezoresistor

Abstract

The application provides a kind of visual detection device for appearance defect of piezoresistor, it relates to piezoresistor appearance defect detection technical field, including: detection installation unit, defect detection unit, separation collection unit and rotation protection unit;The defect detection unit is installed on the detection installation unit;The separation collection unit is equipped with two groups, and two groups of separation collection units are installed on the detection installation unit;The rotation protection unit is equipped with two groups, and two groups of rotation protection units are installed on the detection installation unit;The external air enters the defect detection frame through a circle of air inlet slot holes, and then is discharged through the auxiliary fan, which automatically cleans the piezoresistor at the detection position, preventing the piezoresistor from adhering to the outer wall of the piezoresistor;Solved the problem that when the piezoresistor appearance detection has defects, the outer wall of the piezoresistor cannot be automatically cleaned first, and the piezoresistor is detected again, which affects the appearance defect detection precision of the piezoresistor.

Description

Technical Field

[0001] This invention belongs to the field of varistor appearance defect detection technology, and more specifically, relates to a visual inspection device for varistor appearance defects. Background Technology

[0002] As a key overvoltage protection component in electronic circuits, the appearance quality of varistors directly determines their performance and operational safety. Surface defects such as cracks, damage, and burning often lead to problems such as unstable electrical performance, premature breakdown, or even thermal runaway. Traditional manual inspection is inefficient, prone to missed detections, and difficult to meet the precision requirements of mass production.

[0003] The currently used visual inspection devices for varistor appearance defects still have the following problems: 1. Industrial cameras are generally fixedly installed, so workers cannot know when there is a problem with the working camera; 2. When a varistor has an appearance defect, it is not possible to automatically clean the outer wall of the varistor before performing a second inspection, which affects the accuracy of the appearance defect detection; 3. Varistors with appearance defects need to be manually separated by workers, and it is not possible to automatically separate and collect varistors with defects. Summary of the Invention

[0004] This disclosure relates to a visual inspection device for appearance defects of varistors, comprising an inspection and installation unit, a defect detection unit, a separation and collection unit, and a rotation protection unit. When the switched industrial camera fails to detect an appearance defect, it indicates that the former industrial camera is damaged, facilitating timely replacement by the operator. External air enters the defect detection frame through a ring of air inlets and is then exhausted through an auxiliary fan, automatically cleaning the varistor at the inspection location and preventing debris from adhering to its outer wall. An intelligent controller extends the output shafts of two electric telescopic rods, causing two separation and collection blades to automatically cut off the leads of the varistor. This solves the problems of operators being unable to detect defects in the working camera, being unable to automatically clean the outer wall of the varistor before secondary inspection, and being unable to automatically separate and collect defective varistors.

[0005] This invention provides a visual inspection device for appearance defects of varistors, comprising: an inspection and mounting unit, a defect detection unit, a separation and collection unit, and a rotation protection unit; the defect detection unit is mounted on the inspection and mounting unit and is used to detect whether there are appearance defects in the varistor; the separation and collection unit comprises two sets, both mounted on the inspection and mounting unit, and is used to separate varistors with unqualified appearance, and also to collect the separated unqualified varistors; the rotation protection unit comprises two sets, both mounted on the inspection and mounting unit, and is used to prevent accidental injury to personnel during the rotation of the defect detection unit; an intelligent controller is mounted on the right side of the inspection and mounting unit, and the intelligent controller is used to control the defect detection unit and the two sets of separation and collection units.

[0006] In at least some embodiments, the detection mounting unit includes: a detection mounting frame and an arc-shaped extrusion strip; a mounting hole is provided at the bottom corner of the detection mounting frame; two arc-shaped extrusion strips are provided, and the two arc-shaped extrusion strips are fixedly mounted on the detection mounting frame, and both ends of the two arc-shaped extrusion strips are inclined structures.

[0007] In at least some embodiments, the defect detection unit includes: a servo motor, a defect detection frame, and a mounting bracket; the servo motor is fixedly mounted on the top of the detection mounting bracket and is electrically connected to the intelligent controller; the defect detection frame is fixedly mounted on the output shaft of the servo motor and has a ring of air inlet slots; there are two mounting brackets, and the two mounting brackets are fixedly mounted on the bottom of the defect detection frame.

[0008] In at least some embodiments, the defect detection unit further includes: an industrial camera and an auxiliary fan; there are two industrial cameras, and the two industrial cameras are fixedly mounted on two mounting brackets; the auxiliary fan is fixedly mounted inside the defect detection frame, and the auxiliary fan is electrically connected to the intelligent controller.

[0009] In at least some embodiments, the defect detection unit further includes: a control button a and a hollow pressing tube; the control button a is fixedly installed inside the defect detection frame and is electrically connected to the intelligent controller; the hollow pressing tube is slidably installed on the defect detection frame, and the bottom of the hollow pressing tube is fixedly connected to the control button a, and the top of the hollow pressing tube is a hemispherical structure.

[0010] In at least some embodiments, the separation and collection unit includes: an inclined guide shaft, a separation and collection blade, and an electric telescopic rod; there are two inclined guide shafts, and the two inclined guide shafts are slidably mounted on the detection mounting frame; the separation and collection blade is fixedly mounted on the inner end of the two inclined guide shafts, and the separation and collection blade has an inclined guide hole; the electric telescopic rod is fixedly mounted on the detection mounting frame, and the output shaft of the electric telescopic rod is fixedly connected to the separation and collection blade, and the electric telescopic rod is electrically connected to the intelligent controller.

[0011] In at least some embodiments, the separation and collection unit further includes: a rectangular collection box and a circular positioning shaft; the rectangular collection box is slidably mounted on the separation and collection blade, and the top of the rectangular collection box has four arc-shaped connecting slots; the circular positioning shaft is slidably mounted on the separation and collection blade, and the circular positioning shaft is inserted into one of the arc-shaped connecting slots.

[0012] In at least some embodiments, the separation and collection unit further includes: a circular connecting plate a and a reset spring; the circular connecting plate a is fixedly mounted on a circular positioning shaft; the reset spring is sleeved on the outside of the circular positioning shaft, and both ends of the reset spring are fixedly connected to the separation and collection blade and the circular connecting plate a.

[0013] In at least some embodiments, the rotating protection unit includes: a circular connecting shaft, a rotating protection frame, and a connecting pin; there are two circular connecting shafts, and the two circular connecting shafts are rotatably mounted on the detection mounting frame; the rotating protection frame is fixedly mounted on the two circular connecting shafts; the connecting pin is slidably mounted on the rotating protection frame, and the inner end of the connecting pin is inserted into the detection mounting frame.

[0014] In at least some embodiments, the rotating protection unit further includes: a circular connecting plate b, a support spring, and a control button b; the circular connecting plate b is fixedly installed outside the connecting pin; the support spring is sleeved outside the connecting pin and is located between the rotating protection frame and the circular connecting plate b; the control button b is fixedly installed inside the detection mounting frame and is electrically connected to the intelligent controller.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In this invention, images are acquired by two industrial cameras equipped with dedicated light sources. Combined with intelligent detection algorithms, various minor appearance defects can be quickly and accurately identified. This significantly improves detection efficiency and accuracy, and enables fully automated quality inspection, preventing defective products from entering application scenarios and ensuring the safe and reliable operation of subsequent electronic equipment. When one of the industrial cameras detects an appearance defect in the varistor, the intelligent controller controls the output shaft of the servo motor to rotate half a turn, causing the two industrial cameras to automatically switch positions. If the switched industrial camera also detects the appearance defect, it indicates that the varistor does not meet the appearance requirements. If the switched industrial camera does not detect the appearance defect, it indicates that the former industrial camera is damaged, facilitating timely replacement by the staff. In addition, when the intelligent controller controls the output shaft of the servo motor to rotate, one of the arc-shaped extrusion strips can squeeze the hollow pressing tube downwards a certain distance, so that the hollow pressing tube presses the control button a; when the control button a is in the pressed state, the intelligent controller controls the auxiliary fan to work, and the external air enters the defect detection frame through a ring of air inlet slots, and then is discharged through the auxiliary fan, which plays an automatic cleaning role for the varistor at the detection position and prevents the outer wall of the varistor from being attached with debris.

[0016] 2. In this invention, the four inclined guide shafts guide the two separating and collecting blades; when the varistor has an appearance defect, the intelligent controller controls the output shafts of the two electric telescopic rods to extend, so that the two separating and collecting blades automatically cut off the pins of the varistor. In addition, the cut varistor can enter one of the rectangular collection boxes, which plays a role in collecting varistors with defects in appearance, making it easier for staff to centrally process defective varistors; the setting of two circular positioning shafts plays a role in the elastic positioning of the two rectangular collection boxes, which is conducive to the separation or connection of the rectangular collection boxes and the separation collection knife.

[0017] 3. In this invention, the two supporting springs provide elastic limiting for the two connecting pins, preventing them from falling off under normal conditions. When the inner ends of the two connecting pins are inserted into the inspection mounting frame, they automatically press the two control buttons b. At this time, the intelligent controller can control the servo motor to work, ensuring that the defect inspection frame will not injure personnel when it rotates. When the inner ends of the two connecting pins are not simultaneously inserted into the inspection mounting frame, the two control buttons b cannot be pressed at the same time. In this case, the intelligent controller cannot control the servo motor to work, and the intelligent controller will emit an alarm sound. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0019] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0020] In the attached diagram: Figure 1 A three-dimensional structural schematic diagram of the present invention is shown; Figure 2 A schematic diagram of the structure of the detection and installation unit of the present invention is shown; Figure 3 The present invention is shown. Figure 1 A schematic diagram of the bottom view structure; Figure 4 A schematic diagram of the defect detection unit of the present invention is shown; Figure 5 The present invention is shown. Figure 1 A schematic diagram of the transverse center section structure; Figure 6 The present invention is shown. Figure 5 A magnified schematic diagram of a portion of region A in the middle; Figure 7 A schematic diagram of the separation and collection unit of the present invention is shown; Figure 8 The present invention is shown. Figure 5 A magnified schematic diagram of a portion of region B in the middle; Figure 9 The present invention is shown. Figure 1 A schematic diagram of the longitudinal center section structure; Figure 10 The present invention is shown. Figure 9 A magnified schematic diagram of the structure of region C in the middle.

[0021] List of reference numerals in the attached diagram: 100. Inspection and installation unit; 101. Inspection and installation bracket; 102. Arc-shaped extrusion strip; 200. Defect detection unit; 201. Servo motor; 202. Defect detection frame; 2021. Air inlet slot; 203. Mounting bracket; 204. Industrial camera; 205. Auxiliary fan; 206. Control button a; 207. Hollow pressing tube; 300. Separation and collection unit; 301. Inclined guide shaft; 302. Separation and collection knife; 3021. Inclined guide hole; 303. Electric telescopic rod; 304. Rectangular collection box; 3041. Arc-shaped connecting groove; 305. Circular positioning shaft; 306. Circular connecting plate a; 307. Reset tension spring; 400. Rotary protective unit; 401. Circular connecting shaft; 402. Rotary protective frame; 403. Connecting pin; 404. Circular connecting plate b; 405. Support spring; 406. Control button b; 500. Intelligent controller. Detailed Implementation

[0022] To make the objectives, solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Unless otherwise stated, the terms used herein have their ordinary meanings in the art. The same reference numerals in the drawings represent the same parts.

[0023] Example: Please refer to Figures 1 to 10 As shown: This invention provides a visual inspection device for appearance defects of varistors, comprising: an inspection and mounting unit 100, a defect detection unit 200, a separation and collection unit 300, and a rotation protection unit 400; the defect detection unit 200 is mounted on the inspection and mounting unit 100 and is used to detect whether there are appearance defects in the varistor; two sets of separation and collection units 300 are provided, and the two sets of separation and collection units 300 are mounted on the inspection and mounting unit 100, and are used to separate varistors with unqualified appearance, and also to collect the separated unqualified varistors; two sets of rotation protection units 400 are provided, and the two sets of rotation protection units 400 are mounted on the inspection and mounting unit 100, and are used to prevent accidental injury to personnel during the rotation of the defect detection unit 200; an intelligent controller 500 is installed on the right side of the inspection and mounting unit 100, and the intelligent controller 500 is used to control the defect detection unit 200 and the two sets of separation and collection units 300.

[0024] In this embodiment of the disclosure, such as Figure 2 , Figure 4 and Figure 6 As shown, the testing installation unit 100 includes: a testing installation frame 101 and an arc-shaped extrusion strip 102; a mounting hole is provided at the bottom corner of the testing installation frame 101; there are two arc-shaped extrusion strips 102, and the two arc-shaped extrusion strips 102 are fixedly installed on the testing installation frame 101, and both ends of the two arc-shaped extrusion strips 102 are inclined structures.

[0025] The defect detection unit 200 includes: a servo motor 201, a defect detection frame 202, and mounting brackets 203; the servo motor 201 is fixedly mounted on the top of the detection mounting frame 101, and the servo motor 201 is electrically connected to the intelligent controller 500; the defect detection frame 202 is fixedly mounted on the output shaft of the servo motor 201, and a ring of air inlet slots 2021 is formed on the defect detection frame 202; two mounting brackets 203 are provided, and the two mounting brackets 203 are fixedly mounted on the bottom of the defect detection frame 202; the defect detection unit 200 also includes: an industrial camera 204 and an auxiliary fan 205; two industrial cameras 204 are provided, and the two auxiliary fans 205 are fixedly mounted on the bottom of the defect detection frame 202. An industrial camera 204 is fixedly mounted on two mounting brackets 203; an auxiliary fan 205 is fixedly mounted inside the defect detection frame 202 and is electrically connected to the intelligent controller 500; the defect detection unit 200 also includes: a control button a206 and a hollow pressing tube 207; the control button a206 is fixedly mounted inside the defect detection frame 202 and is electrically connected to the intelligent controller 500; the hollow pressing tube 207 is slidably mounted on the defect detection frame 202, and the bottom of the hollow pressing tube 207 is fixedly connected to the control button a206, and the top of the hollow pressing tube 207 is a hemispherical structure.

[0026] The specific functions of the inspection mounting unit 100 and the defect detection unit 200 are as follows: Since two mounting brackets 203 are fixedly installed at the bottom of the defect detection frame 202, and two industrial cameras 204 are fixedly installed on the two mounting brackets 203, images are acquired by the two industrial cameras 204 equipped with dedicated light sources. Combined with intelligent detection algorithms, various minor appearance defects can be quickly and accurately identified, significantly improving inspection efficiency and accuracy, and enabling fully automated quality inspection. This prevents defective products from entering the application scenario and ensures the safe and reliable operation of subsequent electronic equipment. Furthermore, since the servo motor 201 is fixedly installed on the inspection mounting unit 200... The top of the mounting bracket 101 and the defect detection bracket 202 are fixedly installed on the output shaft of the servo motor 201. When one of the industrial cameras 204 detects a defect in the appearance of the varistor, the intelligent controller 500 controls the output shaft of the servo motor 201 to rotate half a turn, so that the two industrial cameras 204 automatically switch positions. When the switched industrial camera 204 also detects a defect in the appearance, it means that the varistor does not meet the appearance requirements; when the switched industrial camera 204 does not detect a defect in the appearance, it means that the former industrial camera 204 is damaged, which is conducive to timely replacement by the staff. Furthermore, since two arc-shaped extrusion strips 102 are fixedly installed on the detection mounting frame 101, and the bottom of the hollow pressing tube 207 is fixedly connected to the control button a206, and the top of the hollow pressing tube 207 is a hemispherical structure, when the intelligent controller 500 controls the output shaft of the servo motor 201 to rotate, one of the arc-shaped extrusion strips 102 can squeeze the hollow pressing tube 207 to move downward a certain distance, so that the hollow pressing tube 207 presses the control button a206; and since a ring of air inlet slots 2021 is opened on the defect detection frame 202, and the auxiliary fan 205 is fixedly installed inside the defect detection frame 202, when the control button a206 is in the pressed state, the intelligent controller 500 controls the auxiliary fan 205 to work, and the external air enters the defect detection frame 202 through the ring of air inlet slots 2021, and then is discharged through the auxiliary fan 205, which plays an automatic cleaning role for the varistor at the detection position and prevents the outer wall of the varistor from being attached with debris.

[0027] In this embodiment of the disclosure, such as Figure 7 and Figure 8 As shown, the separation and collection unit 300 includes: an inclined guide shaft 301, a separation and collection blade 302, and an electric telescopic rod 303; two inclined guide shafts 301 are provided, and the two inclined guide shafts 301 are slidably mounted on the detection mounting frame 101; the separation and collection blade 302 is fixedly mounted on the inner end of the two inclined guide shafts 301, and the separation and collection blade 302 is provided with an inclined guide hole 3021; ​​the electric telescopic rod 303 is fixedly mounted on the detection mounting frame 101, and the output shaft of the electric telescopic rod 303 is fixedly connected to the separation and collection blade 302, and the electric telescopic rod 303 is electrically connected to the intelligent controller 500; the separation and collection unit 300 also includes: a rectangular collection box 3 04 and a circular positioning shaft 305; a rectangular collection box 304 is slidably mounted on the separating collection knife 302, and the top of the rectangular collection box 304 has four arc-shaped connecting grooves 3041; the circular positioning shaft 305 is slidably mounted on the separating collection knife 302, and the circular positioning shaft 305 is inserted into one of the arc-shaped connecting grooves 3041; the separating collection unit 300 also includes: a circular connecting plate a306 and a reset spring 307; the circular connecting plate a306 is fixedly mounted on the circular positioning shaft 305; the reset spring 307 is sleeved on the outside of the circular positioning shaft 305, and the two ends of the reset spring 307 are fixedly connected to the separating collection knife 302 and the circular connecting plate a306.

[0028] The specific functions of the two sets of separation and collection units 300 are as follows: Since the four inclined guide shafts 301 are slidably mounted on the detection mounting frame 101, and the two separation and collection blades 302 are fixedly mounted on the inner ends of the four inclined guide shafts 301, they play a guiding role for the two separation and collection blades 302; Since the two electric telescopic rods 303 are fixedly mounted on the detection mounting frame 101, and the output shafts of the two electric telescopic rods 303 are fixedly connected to the two separation and collection blades 302, when there is a defect in the appearance of the varistor, the intelligent controller 500 controls the output shafts of the two electric telescopic rods 303 to extend, so that the two separation and collection blades 302 automatically cut off the pins of the varistor; Furthermore, because the two separating and collecting blades 302 are respectively provided with inclined guide holes 3021, and the two rectangular collecting boxes 304 are slidably installed on the two separating and collecting blades 302, and the two rectangular collecting boxes 304 are connected to the two inclined guide holes 3021, the cut varistor can enter one of the rectangular collecting boxes 304, which plays a collecting role for varistors with appearance defects, making it convenient for staff to centrally process the defective varistors; and because the top of the two rectangular collecting boxes 304 is respectively provided with four arc-shaped connecting grooves 3041, and the two circular positioning shafts 305 are inserted into the corresponding arc-shaped connecting grooves 3041, and the two ends of the two reset tension springs 307 are fixedly connected to the separating and collecting blades 302 and the two circular connecting plates a306, the two rectangular collecting boxes 304 play an elastic positioning role, which is conducive to the separation or connection of the rectangular collecting boxes 304 and the separating and collecting blades 302.

[0029] In this embodiment of the disclosure, such as Figure 1 and Figure 10 As shown, the rotation protection unit 400 includes: a circular connecting shaft 401, a rotation protection frame 402, and a connecting pin 403; there are two circular connecting shafts 401, and the two circular connecting shafts 401 are rotatably mounted on the detection mounting frame 101; the rotation protection frame 402 is fixedly mounted on the two circular connecting shafts 401; the connecting pin 403 is slidably mounted on the rotation protection frame 402, and the inner end of the connecting pin 403 is inserted into the detection mounting frame 101; the rotation protection unit 400 also includes: a circular connecting plate b404, a support spring 405, and a control button b406; the circular connecting plate b404 is fixedly mounted on the outside of the connecting pin 403; the support spring 405 is sleeved on the outside of the connecting pin 403, and the support spring 405 is located between the rotation protection frame 402 and the circular connecting plate b404; the control button b406 is fixedly mounted inside the detection mounting frame 101, and the control button b406 is electrically connected to the intelligent controller 500.

[0030] The specific functions of the two sets of rotating protective units 400 are as follows: because the four circular connecting shafts 401 are rotatably mounted on the detection mounting frame 101, and the two rotating protective frames 402 are fixedly mounted on the four circular connecting shafts 401, the two rotating protective frames 402 have a rotating effect; and because the two connecting pins 403 are slidably mounted on the two rotating protective frames 402, and the inner ends of the two connecting pins 403 are inserted into the detection mounting frame 101, they play a limiting role for the two rotating protective frames 402 after rotation. Furthermore, because the two circular connecting plates b404 are fixedly installed on the outside of the two connecting pins 403, and the two support springs 405 are sleeved on the outside of the two connecting pins 403, and the two support springs 405 are located between the two rotating protective frames 402 and the two circular connecting plates b404, they play an elastic limiting role for the two connecting pins 403, preventing the two connecting pins 403 from falling off under normal conditions; and because the two control buttons b406 are fixedly installed inside the detection mounting bracket 101, when the two connecting pins 403 are inside... When the two connecting pins 403 are inserted into the inspection mounting bracket 101, the two connecting pins 403 automatically press the two control buttons b406. At this time, the intelligent controller 500 can control the servo motor 201 to work, ensuring that the defect inspection bracket 202 will not injure the staff when it rotates. When the inner ends of the two connecting pins 403 are not inserted into the inspection mounting bracket 101 at the same time, the two control buttons b406 cannot be pressed at the same time. At this time, the intelligent controller 500 cannot control the servo motor 201 to work, and the intelligent controller 500 will sound an alarm.

[0031] The specific usage and function of this embodiment are as follows: In use, the present invention first fixes the detection mounting bracket 101 to the varistor production line with bolts, aligning the two industrial cameras 204 with the varistor to be tested, while ensuring that the pins of the varistor to be tested are between the two separating collection blades 302. Then, the intelligent controller 500 is connected to an external power supply, and the two industrial cameras 204 are connected to the corresponding external control system. The operator pulls the two connecting pins 403 outwards, and then rotates the two rotating protective brackets 402 ninety degrees, so that the inner ends of the two connecting pins 403 are inserted into the detection mounting bracket 101. The two cameras are then... The rotating protective frame 402 serves as a limit switch. When the inner ends of the two connecting pins 403 are inserted into the inspection mounting frame 101, the two connecting pins 403 automatically press the two control buttons b406. At this time, the intelligent controller 500 can control the servo motor 201 to work, ensuring that the defect detection frame 202 will not injure personnel when it rotates. When one of the industrial cameras 204 detects a defect in the appearance of the varistor, the intelligent controller 500 controls the output shaft of the servo motor 201 to rotate half a turn, causing the two industrial cameras 204 to automatically switch positions. When the switched industrial camera 204 also detects the defect... When an appearance defect is found at a certain location, it indicates that the varistor does not meet the appearance requirements. If the switched industrial camera 204 does not detect the appearance defect, it indicates that the former industrial camera 204 is damaged, which is beneficial for timely replacement by the staff. When the intelligent controller 500 controls the output shaft of the servo motor 201 to rotate, one of the arc-shaped extrusion strips 102 can extrude the hollow pressing tube 207 downwards by a certain distance, causing the hollow pressing tube 207 to press the control button a206. When the control button a206 is in the pressed state, the intelligent controller 500 controls the auxiliary fan 205 to work, and the outside air passes through a circle. Air enters the defect detection rack 202 through the inlet slot 2021 and is then discharged through the auxiliary fan 205, which automatically cleans the varistor at the detection position and prevents debris from adhering to the outer wall of the varistor. When the varistor has a defect, the intelligent controller 500 controls the output shafts of the two electric telescopic rods 303 to extend, so that the two separating collection blades 302 automatically cut off the leads of the varistor. The cut-off varistor can enter one of the rectangular collection boxes 304, which collects the varistor with defects and makes it easier for staff to centrally process the defective varistor.

[0032] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0033] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0034] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A visual inspection device for appearance defects of varistors, comprising: The system comprises a detection and installation unit (100), a defect detection unit (200), a separation and collection unit (300), and a rotation protection unit (400); characterized in that the defect detection unit (200) is installed on the detection and installation unit (100) and is used to detect whether there are defects in the appearance of the varistor; the separation and collection unit (300) is provided in two sets, and the two sets of separation and collection units (300) are installed on the detection and installation unit (100), and the two sets of separation and collection units (300) are used to separate varistors with unqualified appearance, and The two sets of separation and collection units (300) are also used to collect the unqualified varistors after separation; there are two sets of rotating protection units (400), and the two sets of rotating protection units (400) are installed on the detection installation unit (100). The two sets of rotating protection units (400) are used to prevent the defect detection unit (200) from accidentally injuring the staff during rotation; an intelligent controller (500) is installed on the right side of the detection installation unit (100). The intelligent controller (500) is used to control the defect detection unit (200) and the two sets of separation and collection units (300).

2. The visual inspection device for appearance defects of a varistor according to claim 1, characterized in that, The detection mounting unit (100) includes: a detection mounting frame (101) and an arc-shaped extrusion strip (102); the detection mounting frame (101) has a mounting hole at the bottom corner; there are two arc-shaped extrusion strips (102), and the two arc-shaped extrusion strips (102) are fixedly mounted on the detection mounting frame (101), and both ends of the two arc-shaped extrusion strips (102) are inclined structures.

3. The visual inspection device for appearance defects of a varistor according to claim 2, characterized in that, The defect detection unit (200) includes: a servo motor (201), a defect detection frame (202), and a mounting bracket (203); the servo motor (201) is fixedly installed on the top of the detection mounting frame (101), and the servo motor (201) is electrically connected to the intelligent controller (500); the defect detection frame (202) is fixedly installed on the output shaft of the servo motor (201), and a ring of air inlet slots (2021) is opened on the defect detection frame (202); there are two mounting brackets (203), and the two mounting brackets (203) are fixedly installed on the bottom of the defect detection frame (202).

4. The visual inspection device for appearance defects of a varistor according to claim 1, characterized in that, The defect detection unit (200) further includes an industrial camera (204) and an auxiliary fan (205); there are two industrial cameras (204), and the two industrial cameras (204) are fixedly installed on two mounting brackets (203); the auxiliary fan (205) is fixedly installed inside the defect detection frame (202), and the auxiliary fan (205) is electrically connected to the intelligent controller (500).

5. The visual inspection device for appearance defects of a varistor according to claim 3, characterized in that, The defect detection unit (200) further includes: a control button a (206) and a hollow pressing tube (207); the control button a (206) is fixedly installed inside the defect detection frame (202), and the control button a (206) is electrically connected to the intelligent controller (500); the hollow pressing tube (207) is slidably installed on the defect detection frame (202), and the bottom of the hollow pressing tube (207) is fixedly connected to the control button a (206), and the top of the hollow pressing tube (207) is a hemispherical structure.

6. The visual inspection device for appearance defects of a varistor according to claim 2, characterized in that, The separation and collection unit (300) includes: an inclined guide shaft (301), a separation and collection blade (302), and an electric telescopic rod (303); there are two inclined guide shafts (301), and the two inclined guide shafts (301) are slidably mounted on the detection mounting frame (101); the separation and collection blade (302) is fixedly mounted on the inner end of the two inclined guide shafts (301), and the separation and collection blade (302) is provided with an inclined guide hole (3021); the electric telescopic rod (303) is fixedly mounted on the detection mounting frame (101), and the output shaft of the electric telescopic rod (303) is fixedly connected to the separation and collection blade (302), and the electric telescopic rod (303) is electrically connected to the intelligent controller (500).

7. The visual inspection device for appearance defects of a varistor according to claim 6, characterized in that, The separation and collection unit (300) further includes: a rectangular collection box (304) and a circular positioning shaft (305); the rectangular collection box (304) is slidably mounted on the separation and collection blade (302), and the top of the rectangular collection box (304) is provided with four arc-shaped connecting grooves (3041); the circular positioning shaft (305) is slidably mounted on the separation and collection blade (302), and the circular positioning shaft (305) is inserted into one of the arc-shaped connecting grooves (3041).

8. The visual inspection device for appearance defects of a varistor according to claim 7, characterized in that, The separation and collection unit (300) further includes: a circular connecting plate a (306) and a reset spring (307); the circular connecting plate a (306) is fixedly installed on the circular positioning shaft (305); the reset spring (307) is sleeved on the outside of the circular positioning shaft (305), and the two ends of the reset spring (307) are fixedly connected to the separation and collection blade (302) and the circular connecting plate a (306).

9. The visual inspection device for appearance defects of a varistor according to claim 2, characterized in that, The rotating protective unit (400) includes: a circular connecting shaft (401), a rotating protective frame (402), and a connecting pin (403); there are two circular connecting shafts (401), and the two circular connecting shafts (401) are rotatably mounted on the detection mounting frame (101); the rotating protective frame (402) is fixedly mounted on the two circular connecting shafts (401); the connecting pin (403) is slidably mounted on the rotating protective frame (402), and the inner end of the connecting pin (403) is inserted into the detection mounting frame (101).

10. A visual inspection device for appearance defects of a varistor according to claim 9, characterized in that, The rotating protective unit (400) further includes: a circular connecting plate b (404), a support spring (405), and a control button b (406); the circular connecting plate b (404) is fixedly installed on the outside of the connecting pin (403); the support spring (405) is sleeved on the outside of the connecting pin (403), and the support spring (405) is located between the rotating protective frame (402) and the circular connecting plate b (404); the control button b (406) is fixedly installed inside the detection mounting frame (101), and the control button b (406) is electrically connected to the intelligent controller (500).

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