Capacitor surface defect detection device

Abstract

The invention discloses a capacitor surface defect detection device, and relates to the technical field of capacitor surface defect detection, the capacitor surface defect detection device comprises an illumination box and suspension mechanisms, a transmission belt is arranged in the illumination box in a penetrating manner, the suspension mechanisms are distributed on the surface of the transmission belt at equal intervals, and a transverse elastic piston rod is arranged on the side surface of the bottom of an oil liquid box in a penetrating manner. According to the capacitor surface defect detection device, the capacitor bodies are clamped in a flexible suspension manner, so that the capacitor bodies can be transmitted and moved in an assembly line manner, each capacitor body is shot twice, and in the shooting process of the two sides, the vertical elastic piston rods are pressed downwards by the pressure applying slope pieces along with the movement of the capacitor bodies; the flexible cotton sleeve is arranged on the connecting shaft, so that the connecting shaft carries the flexible cotton sleeve to rotate so as to change the clamping part of the capacitor body, and therefore, comprehensive scratch detection of the capacitor body can be realized by shooting the image for the second time and detecting the exposed original clamping part, and missing detection caused by the fact that the clamping part shields the scratch can be prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of capacitor surface defect detection, and in particular to a capacitor surface defect detection device. Background Art

[0002] The length, width and height of film capacitors can reach 200mm×100mm×300mm. The main purpose of surface defect detection of film capacitors is to ensure the quality and reliability of the product to prevent the film capacitors from affecting product quality due to surface scratches, breakage and other reasons.

[0003] When using an optical camera to inspect scratches on both sides of a capacitor, the capacitor must either be turned over, which requires a turning device or manual clamping, which can easily cause mechanical scratches on the capacitor surface. Alternatively, the capacitor must be clamped and suspended, and two optical cameras relatively disposed are used to simultaneously inspect scratches on both sides of the suspended capacitor. However, when the capacitor is suspended, the clamping method will partially block the capacitor surface, making it difficult to inspect the blocked area.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a capacitor surface defect detection device is proposed. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a capacitor surface defect detection device, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a capacitor surface defect detection device, comprising an illumination box and a suspension mechanism, a conveyor belt is passed through the interior of the illumination box, and the suspension mechanism is equidistantly distributed on the surface of the conveyor belt, the suspension mechanism comprises an oil box, a vertical elastic piston rod, a roller, a transverse elastic piston rod, a rack, a gear, a connecting shaft, a flexible cotton sleeve, a connecting frame, a micro push rod and a pressure slope, a vertical elastic piston rod is passed through the top of the oil box, and the top of the vertical elastic piston rod is connected to a roller, a transverse elastic piston rod is passed through the bottom side of the oil box, and racks are arranged on both sides of the transverse elastic piston rod, gears are arranged on the sides of the rack, and a connecting shaft is fixed to the bottom of the gear, the outer wall of the connecting shaft is sleeved with a flexible cotton sleeve, the top surface of the gear is rotatably connected to a connecting frame, and a micro push rod is connected to the middle of the side of the connecting frame, and a pressure slope is arranged on the top of the inner wall of the illumination box.

[0007] Furthermore, there are two micro push rods in total, and the micro push rods are symmetrically fixed to the bottom surface of the oil box.

[0008] Furthermore, a capacitor body is arranged between the flexible cotton sleeves, and the right side of the capacitor body protrudes from the side surface of the flexible cotton sleeve on the right side.

[0009] Furthermore, the bottom surface of the pressure ramp is at a height lower than the top surface of the roller, and the roller and the pressure ramp are distributed on the same straight line.

[0010] Furthermore, a first optical camera is fixedly disposed on one side of the light box, and a second optical camera is fixedly disposed on the other side of the light box.

[0011] Furthermore, a background plate assembly is arranged inside the light box, and the background plate assembly includes a first background plate and a second background plate, and the first background plate and the second background plate are symmetrically distributed about the central axis of the pressure slope member.

[0012] Furthermore, the background plate assembly also includes a first shooting hole, and the first shooting hole is opened on the surface of the first background plate.

[0013] Furthermore, two first shooting holes are provided, and the shooting range of the first optical camera simultaneously accommodates the two first shooting holes.

[0014] Furthermore, the background plate assembly also includes a second shooting hole, and the second shooting hole is opened on the surface of the second background plate.

[0015] Furthermore, two second shooting holes are provided, and the second shooting holes and the first shooting holes are staggered, and the shooting range of the second optical camera accommodates two second shooting holes at the same time.

[0016] The present invention provides a capacitor surface defect detection device, which has the following beneficial effects:

[0017] 1. The capacitor surface defect detection device, by clamping the capacitor body in a flexible suspension manner, can be transported and moved in an assembly line manner, and can simultaneously perform scratch detection on both sides to greatly improve the detection efficiency. In addition, the present invention shoots each capacitor body twice. During the shooting process on both sides, the vertical elastic piston rod is pressed down by the pressure slope member as the capacitor body moves, so that the connecting shaft carries the flexible cotton sleeve to rotate to change the clamping position of the capacitor body. Therefore, by shooting the image for the second time and detecting the original clamping position that has been exposed, the comprehensive scratch detection of the capacitor body can be achieved to prevent the clamping position from blocking the scratch and causing missed detection.

[0018] 2. The capacitor surface defect detection device sets a first background plate and a second background plate on both sides of the pressure slope, and the capacitor body is located between the first background plate and the second background plate for transmission, so that the capacitor body is photographed when passing through the first shooting hole and the second shooting hole in sequence, and when the first optical camera and the second optical camera are shooting, the opposite light source is blocked by the non-hole parts of the first background plate and the second background plate, which is beneficial to prevent the opposite light source from interfering with the imaging effect, so as to improve the imaging clarity in disguise. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the external structure of an illumination box of a capacitor surface defect detection device of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of an oil box of a capacitor surface defect detection device of the present invention;

[0021] Figure 3 This is a schematic diagram of the flexible cotton sleeve structure of a capacitor surface defect detection device of the present invention;

[0022] Figure 4 This is a schematic diagram of the first background plate structure of a capacitor surface defect detection device of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of a second background plate of a capacitor surface defect detection device according to the present invention;

[0024] Figure 6 The present invention is a schematic diagram of the structure of a pressure slope member of a capacitor surface defect detection device.

[0025] In the figure: 1. light box; 2. conveyor belt; 3. suspension mechanism; 301. oil box; 302. vertical elastic piston rod; 303. roller; 304. transverse elastic piston rod; 305. rack; 306. gear; 307. connecting shaft; 308. flexible cotton sleeve; 309. connecting frame; 310. micro push rod; 311. pressure slope; 4. capacitor body; 5. first optical camera; 6. second optical camera; 7. background plate assembly; 701. first background plate; 702. second background plate; 703. first shooting hole; 704. second shooting hole. DETAILED DESCRIPTION

[0026] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] like Figure 1-Figure 6As shown, the present invention provides a technical solution: a capacitor surface defect detection device, including an illumination box 1 and a suspension mechanism 3, a conveyor belt 2 is penetrated inside the illumination box 1, and the suspension mechanism 3 is equidistantly distributed on the surface of the conveyor belt 2, and the suspension mechanism 3 includes an oil box 301, a vertical elastic piston rod 302, a roller 303, a transverse elastic piston rod 304, a rack 305, a gear 306, a connecting shaft 307, a flexible cotton sleeve 308, a connecting frame 309, a micro push rod 310 and a pressure slope 311, a vertical elastic piston rod 302 is penetrated on the top of the oil box 301, and the top of the vertical elastic piston rod 302 is connected to the roller 303, a transverse elastic piston rod 304 is penetrated on the side of the bottom of the oil box 301, and racks 305 are arranged on both sides of the transverse elastic piston rod 304, and gears 306 are arranged on the side of the rack 305, and A connecting shaft 307 is fixed to the bottom of the gear 306, and a flexible cotton sleeve 308 is sleeved on the outer wall of the connecting shaft 307. A connecting frame 309 is rotatably connected to the top surface of the gear 306, and a micro push rod 310 is connected to the middle part of the side of the connecting frame 309. A pressure slope 311 is provided on the top of the inner wall of the illumination box 1. There are two micro push rods 310 in total, and the micro push rods 310 are symmetrically fixed to the bottom surface of the oil box 301. A capacitor body 4 is provided between the flexible cotton sleeves 308, and the right side of the capacitor body 4 protrudes from the side surface of the flexible cotton sleeve 308 on the right side. The bottom surface of the pressure slope 311 is at a height lower than the top surface of the roller 303, and the roller 303 and the pressure slope 311 are distributed on the same straight line. A first optical camera 5 is fixedly provided on one side of the illumination box 1, and a second optical camera 6 is fixedly provided on the other side of the illumination box 1.

[0028] The specific operation is as follows: first, the capacitor body 4 to be inspected for scratches needs to be suspended and clamped. Specifically, the capacitor body 4 is manually erected in the loading area so that its top is located between the connecting shafts 307. At this time, the micro push rod 310 is extended to make the opposite connecting shafts 307 close to each other, thereby flexibly clamping the top of the capacitor body 4 through the flexible cotton sleeve 308. At this time, it should be noted that when clamping, the right side of the capacitor body 4 should be obviously protruding from the side of the flexible cotton sleeve 308 on the right side;

[0029] Then, the suspended and clamped capacitor body 4 is sent to the inside of the light box 1 by the conveyor belt 2, and then the first optical camera 5 and the second optical camera 6 take the first pictures of both sides of the capacitor body 4 in turn;

[0030] After the first shooting, the capacitor body 4 and the oil box 301 continue to be transported. When the roller 303 contacts the pressure slope 311, the pressure slope 311 applies downward pressure to the roller 303 so that the vertical elastic piston rod 302 is pressed into the oil box 301, thereby causing the transmission medium inside the oil box 301 to push the horizontal elastic piston rod 304 and the rack 305 to extend, thereby driving the gear 306 to rotate through the translational rack 305, and the relatively distributed gears 306 transmit to each other, thereby causing the connecting shaft 307 to carry the flexible cotton sleeve 308 while keeping the capacitor body 4 clamped and driving the capacitor body 4 to transmit, thereby changing the clamping position;

[0031] After the clamping part of the capacitor body 4 is moved and changed, the first optical camera 5 and the second optical camera 6 take a second shot of both sides of the capacitor body 4 in sequence, and the images taken twice are uploaded to the image processing host. The image processing host performs scratch detection on both sides of the capacitor body 4 taken for the first time, which naturally avoids the clamping part in the first shooting. When the image processing host performs scratch detection on both sides of the capacitor body 4 taken for the second time, since the clamping part changes, it focuses on whether there are scratches at the original clamping part in the detection image.

[0032] Based on the above description, the present invention flexibly suspends and clamps the capacitor body 4 so that it can be transported and moved in an assembly line manner, and can simultaneously perform scratch detection on both sides to greatly improve the detection efficiency. In addition, the present invention photographs each capacitor body 4 twice, and during the photographing process on both sides, the vertical elastic piston rod 302 is pressed down by the pressure slope 311 as the capacitor body 4 moves, so that the connecting shaft 307 carries the flexible cotton sleeve 308 to rotate to change the clamping part of the capacitor body 4, thereby achieving comprehensive scratch detection of the capacitor body 4 by taking the image for the second time and detecting the original clamping part that has been exposed, so as to prevent the clamping part from blocking the scratches and causing missed detection.

[0033] like Figure 1-Figure 6As shown, a background plate assembly 7 is provided inside the illumination box 1, and the background plate assembly 7 includes a first background plate 701 and a second background plate 702, and the first background plate 701 and the second background plate 702 are symmetrically distributed about the central axis of the pressure slope 311, and the background plate assembly 7 also includes a first shooting hole 703, and the first background plate 701 has a first shooting hole 703 on its surface, and two first shooting holes 703 are provided, and the first optical camera 5 simultaneously accommodates two first shooting holes 703, and the background plate assembly 7 also includes a second shooting hole 704, and the second background plate 702 has a second shooting hole 704 on its surface, and two second shooting holes 704 are provided, and the second shooting hole 704 is staggered with the first shooting hole 703, and the second optical camera 6 simultaneously accommodates two second shooting holes 704 within its shooting range;

[0034] The specific operation is as follows: after the capacitor body 4 enters the light box 1, both sides thereof need to be illuminated to provide a good detection environment, resulting in the first optical camera 5 and the second optical camera 6 being relatively arranged to be easily affected by the opposite light source in the imaging effect. For this reason, a first background plate 701 and a second background plate 702 are arranged on both sides of the pressure slope 311. The surfaces of the first background plate 701 and the second background plate 702 are provided with first shooting holes 703 and second shooting holes 704 with staggered distribution. The specific distribution according to the transmission line is as follows: the first shooting hole 703, the second shooting hole 704, the first shooting hole 703, and the second shooting hole 704;

[0035] The first optical camera 5 and the second optical camera 6 are wide-angle cameras, and there will be an angle tilt when imaging, so the image processing host needs to perform angle compensation. Image angle compensation is a prior art. When the first optical camera 5 captures one side of the complete capacitor body 4 through the first shooting hole 703, since the other side of the capacitor body 4 is the second background plate 702, it is possible to avoid the irradiation of the opposite light source interfering with the imaging effect of the first optical camera 5. Similarly, when the second optical camera 6 captures one side of the complete capacitor body 4 through the second shooting hole 704, since the other side of the capacitor body 4 is the first background plate 701, it is possible to avoid the irradiation of the opposite light source interfering with the imaging effect of the second optical camera 6.

[0036] Based on the above description, the present invention sets a first background plate 701 and a second background plate 702 on both sides of the pressure slope 311, and the capacitor body 4 is located between the first background plate 701 and the second background plate 702 for transmission, so that the capacitor body 4 is photographed when passing through the first shooting hole 703 and the second shooting hole 704 in sequence, and when the first optical camera 5 and the second optical camera 6 shoot, the opposite light source is blocked by the non-hole parts of the first background plate 701 and the second background plate 702, which is beneficial to prevent the opposite light source from interfering with the imaging effect, so as to improve the imaging clarity in disguise.

[0037] In summary, when the capacitor surface defect detection device is used, the capacitor body 4 to be inspected for scratches needs to be suspended and clamped first. Specifically, the capacitor body 4 is manually erected in the loading area so that its top is located between the connecting shafts 307. At this time, the micro push rod 310 is extended to make the relative connecting shafts 307 close to each other, thereby flexibly clamping the top of the capacitor body 4 through the flexible cotton sleeve 308. At this time, it should be noted that the right side of the capacitor body 4 should obviously protrude from the side of the flexible cotton sleeve 308 when clamping.

[0038] Then, the suspended and clamped capacitor body 4 is sent to the inside of the light box 1 by the conveyor belt 2, and then the first optical camera 5 and the second optical camera 6 take the first pictures of both sides of the capacitor body 4 in turn;

[0039] After the first shooting, the capacitor body 4 and the oil box 301 continue to be transported. When the roller 303 contacts the pressure slope 311, the pressure slope 311 applies downward pressure to the roller 303 so that the vertical elastic piston rod 302 is pressed into the oil box 301, thereby causing the transmission medium inside the oil box 301 to push the horizontal elastic piston rod 304 and the rack 305 to extend, thereby driving the gear 306 to rotate through the translational rack 305, and the relatively distributed gears 306 transmit to each other, thereby causing the connecting shaft 307 to carry the flexible cotton sleeve 308 while keeping the capacitor body 4 clamped and driving the capacitor body 4 to transmit, thereby changing the clamping position;

[0040] After the clamping part of the capacitor body 4 is moved and changed, the first optical camera 5 and the second optical camera 6 take a second shot of both sides of the capacitor body 4 in sequence, and the images taken twice are uploaded to the image processing host. The image processing host performs scratch detection on both sides of the capacitor body 4 taken for the first time, which naturally avoids the clamping part in the first shooting. When the image processing host performs scratch detection on both sides of the capacitor body 4 taken for the second time, since the clamping part changes, it focuses on whether there are scratches at the original clamping part in the detection image.

[0041] A first background plate 701 and a second background plate 702 are provided on both sides of the pressure slope member 311. The surfaces of the first background plate 701 and the second background plate 702 are provided with first shooting holes 703 and second shooting holes 704 which are staggered and distributed. The distribution of the first shooting hole 703, the second shooting hole 704, the first shooting hole 703, and the second shooting hole 704 are arranged in the following order according to the specific distribution of the transmission line;

[0042] The first optical camera 5 and the second optical camera 6 are wide-angle cameras, and there will be an angle tilt when imaging, so the image processing host needs to perform angle compensation. Image angle compensation is a prior art. When the first optical camera 5 captures one side of the complete capacitor body 4 through the first shooting hole 703, since the other side of the capacitor body 4 is the second background plate 702, it is possible to avoid the irradiation of the opposite light source interfering with the imaging effect of the first optical camera 5. Similarly, when the second optical camera 6 captures one side of the complete capacitor body 4 through the second shooting hole 704, since the other side of the capacitor body 4 is the first background plate 701, it is possible to avoid the irradiation of the opposite light source interfering with the imaging effect of the second optical camera 6.

[0043] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A capacitor surface defect detection device, comprising an illumination box (1) and a suspension mechanism (3), characterized in that: The interior of the illumination box (1) is provided with a conveyor belt (2), and the suspension mechanism (3) is equidistantly distributed on the surface of the conveyor belt (2). The suspension mechanism (3) comprises an oil box (301), a vertical elastic piston rod (302), a roller (303), a transverse elastic piston rod (304), a rack (305), a gear (306), a connecting shaft (307), a flexible cotton sleeve (308), a connecting frame (309), a micro push rod (310) and a pressure slope (311). The top of the oil box (301) is provided with a vertical elastic piston rod (302), and the top of the vertical elastic piston rod (302) is connected to a roller. (303), a transverse elastic piston rod (304) is passed through the side of the bottom of the oil box (301), and racks (305) are arranged on both sides of the transverse elastic piston rod (304), a gear (306) is arranged on the side of the rack (305), and a connecting shaft (307) is fixed to the bottom of the gear (306), the outer wall of the connecting shaft (307) is sleeved with a flexible cotton sleeve (308), the top surface of the gear (306) is rotatably connected to a connecting frame (309), and a micro push rod (310) is connected to the middle of the side of the connecting frame (309), and a pressure slope (311) is arranged on the top of the inner wall of the light box (1).

2. A capacitor surface defect detection device according to claim 1, characterized in that: A total of two micro push rods (310) are provided, and the micro push rods (310) are symmetrically fixed to the bottom surface of the oil box (301).

3. A capacitor surface defect detection device according to claim 1, characterized in that: A capacitor body (4) is arranged between the flexible cotton sleeves (308), and the right side of the capacitor body (4) protrudes from the side surface of the flexible cotton sleeve (308) on the right side.

4. A capacitor surface defect detection device according to claim 1, characterized in that: The bottom surface of the pressure slope (311) is located at a height lower than the top surface of the roller (303), and the roller (303) and the pressure slope (311) are distributed on the same straight line.

5. The capacitor surface defect detection device according to claim 1, characterized in that: A first optical camera (5) is fixedly arranged on one side of the illumination box (1), and a second optical camera (6) is fixedly arranged on the other side of the illumination box (1).

6. A capacitor surface defect detection device according to claim 5, characterized in that: A background plate assembly (7) is arranged inside the illumination box (1), and the background plate assembly (7) comprises a first background plate (701) and a second background plate (702), wherein the first background plate (701) and the second background plate (702) are symmetrically arranged about the central axis of the pressure slope (311).

7. A capacitor surface defect detection device according to claim 6, characterized in that: The background plate assembly (7) further comprises a first shooting hole (703), and the first background plate (701) is provided with the first shooting hole (703) on its surface.

8. A capacitor surface defect detection device according to claim 7, characterized in that: Two of the first shooting holes (703) are provided, and the shooting range of the first optical camera (5) simultaneously accommodates the two first shooting holes (703).

9. A capacitor surface defect detection device according to claim 8, characterized in that: The background plate assembly (7) further comprises a second shooting hole (704), and the second shooting hole (704) is provided on the surface of the second background plate (702).

10. A capacitor surface defect detection device according to claim 9, characterized in that: Two second shooting holes (704) are provided, and the second shooting holes (704) and the first shooting holes (703) are staggered in distribution, and the shooting range of the second optical camera (6) simultaneously accommodates the two second shooting holes (704).

Images