A visual inspection device for motor coils

Abstract

The present invention relates to the field of motor technology, and discloses a visual inspection device for motor coils, comprising a bottom plate, a detection mechanism is arranged above the bottom plate, and a loading and unloading mechanism is arranged above the detection mechanism; the detection mechanism comprises a fixed cylinder, the bottom surface of the fixed cylinder is fixedly connected to the upper end surface of the bottom plate, the outer surface of the fixed cylinder is sleeved with a thrust bearing, the upper end surface of the outer ring of the thrust bearing is fixedly connected to a rotating table, and the upper end surface of the rotating table is fixedly connected to a camera. The visual inspection device for motor coils can use a camera to cooperate with the rotation of a clamping column and a rotating table to realize image acquisition of different positions of a motor coil, without using multiple cameras and multiple image comparison devices to shoot different positions of the motor coil, which greatly reduces the cost of visual inspection of motor coils and improves the practicality and work efficiency of the visual inspection device for motor coils.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to a visual detection device for motor coils. Background Art

[0002] A coil usually refers to a ring-shaped wire winding. The most common coil applications include motors, inductors, transformers, and ring antennas. As an important component of the motor, after the coil winding work is completed, in order to ensure that the subsequent coil can work normally, it is usually necessary to perform a visual quality inspection on the outside of the motor coil to check whether the motor coil has a post-winding error or the insulating paint of the winding copper wire is damaged. In order to reduce the labor intensity of the staff, the original manual visual inspection by the staff was changed to taking photos of different positions of the motor coil with a camera and performing comparative inspection with image comparison equipment, which greatly improved the visual inspection efficiency of the motor coil.

[0003] When using the existing visual inspection device for motor coils, it is usually necessary to use multiple cameras to capture different positions of the motor coil, and cooperate with image comparison equipment to perform synthetic comparison inspection on the images of different positions of the motor coil, which greatly increases the cost of the motor coil inspection device and the difficulty of controlling the device. The inspection process is long, which affects the practicality and work efficiency of the motor coil visual inspection device. At the same time, due to the setting of multiple cameras, when visual inspection of motor coils of different specifications is required, multiple cameras need to be repeatedly debugged, which limits the assembly efficiency of the motor coil visual inspection device.

[0004] Therefore, it is necessary to provide a visual inspection device for motor coils to solve the problem that the existing motor coil visual inspection device uses multiple cameras for inspection, resulting in poor inspection efficiency. Summary of the invention

[0005] The main purpose of the present invention is to provide a visual inspection device for motor coils, aiming to solve the technical problems mentioned in the above background technology.

[0006] The present invention adopts the following technical solutions:

[0007] A visual inspection device for a motor coil comprises a bottom plate and a detection mechanism arranged on the upper surface of the bottom plate, wherein a loading and unloading mechanism is arranged above the detection mechanism;

[0008] The detection mechanism includes a fixed cylinder fixedly arranged on the upper end surface of the bottom plate, the fixed cylinder is rotatably connected to a rotating platform, and the inner wall of the fixed cylinder is fixedly connected to a gear ring, a connecting rod is passed through the rotating platform, the bottom end of the connecting rod is fixedly connected to a large gear, the large gear is meshed with the gear ring, and the connecting rod is connected to a clamping column for installing a motor coil, wherein the upper end surface of the rotating platform is provided with a camera facing the clamping column, when the rotating platform is rotated, the clamping column rotates, and the camera and the clamping column revolve synchronously;

[0009] The loading and unloading mechanism is provided with a moving block for pushing the clamping column so that the clamping column can complete loading and unloading.

[0010] Furthermore, a thrust bearing is sleeved on the outer surface of the fixed cylinder, the upper end surface of the outer ring of the thrust bearing is fixedly connected to the rotating table, a stepping motor is arranged below the rotating table, and the output end of the stepping motor power is connected to the bottom surface of the rotating table;

[0011] A transmission groove is opened on the upper end surface of the rotating table, and the connecting rod is passed through the transmission groove. The top end of the connecting rod is fixedly connected with a first transmission gear, and the first transmission gear is arranged inside the transmission groove. The outer surface of the first transmission gear is meshed and connected with a second transmission gear. The upper end surface of the second transmission gear is fixedly connected with a fixing rod, and the top end of the fixing rod is fixedly connected to the bottom surface of the clamping column.

[0012] Furthermore, the loading and unloading mechanism comprises a support frame, which is arranged above the rotating table, and the bottom surface of the support frame is fixedly connected to two electric push rods, and the bottom end of each electric push rod is fixedly connected to the upper end surface of the rotating table;

[0013] The support frame is slidably connected to the moving block, and the moving block is internally rotatably connected with a stepped seat, and the bottom surface of the stepped seat is fixedly connected to the upper end surface of the clamping column, and the support frame is internally rotatably connected with a first screw, and the first screw is threadedly connected to the inner wall of the moving block. A rotating motor is provided on one side of the support frame, and the output end of the rotating motor power is fixedly connected to one end of the first screw, the inner top wall of the clamping column is fixedly connected with a servo motor, and the output end of the servo motor power is fixedly connected with a second screw, and the second screw is threadedly connected with a moving seat, and the moving seat is slidably connected to the inside of the clamping column, and the outer surface of the moving seat and the outer surface of the clamping column are jointly movably hinged with four movable frames, and each of the movable frames is movably connected with a clamping plate at one end away from the clamping column.

[0014] Furthermore, a loading rack is fixedly connected to the upper end surface of the bottom plate, the loading rack is arranged on one side of the detection mechanism, and a unloading rack is arranged on the side of the detection mechanism away from the loading rack;

[0015] The camera is threadedly connected with four fixing bolts, the bottom end of each fixing bolt penetrates into the interior of the rotating platform, and each fixing bolt is threadedly connected with the rotating platform.

[0016] Furthermore, a stabilizing seat is fixedly connected to one side of the stepping motor, and the bottom surface of the stabilizing seat is fixedly connected to the upper end surface of the bottom plate. Two positioning blocks are fixedly connected to the side of the support frame facing the rotating motor, and a positioning column is slidably connected inside the positioning block, and the bottom end of the positioning column is fixedly connected to the upper end surface of the rotating table.

[0017] Furthermore, outer surfaces of the two electric push rods are fixedly connected with stabilizing rings, and bottom surfaces of the two stabilizing rings are fixedly connected to the upper end surface of the rotating table.

[0018] Furthermore, a positioning seat is fixedly connected to the upper end surface of the rotating motor, and one side of the positioning seat is fixedly connected to the supporting frame.

[0019] Furthermore, a reinforcement ring is fixedly connected to the outer surface of the fixing rod, and the upper end surface of the reinforcement ring is fixedly connected to the bottom surface of the clamping column.

[0020] Furthermore, the outer surface of the clamping column is fixedly connected to a toothed disk, the outer surface of the toothed disk is meshingly connected to a clamping frame, one side of the clamping frame is fixedly connected to two limit rods, both of which are slidably connected to the inside of the moving block, the outer surfaces of the two limit rods are sleeved with compression springs, both of which are fixedly connected to the moving block, the upper end surface of the rotating table is fixedly connected to the limit frame, and the left ends of the two limit rods are in contact with the right side surface of the limit frame.

[0021] Furthermore, two reinforcing ribs are fixedly connected to one side of the limiting frame, and the bottom surfaces of the two reinforcing ribs are fixedly connected to the upper end surface of the rotating table.

[0022] Beneficial effects:

[0023] In the present invention, by setting up a detection mechanism, a camera can be used to cooperate with the rotation of the clamping column and the rotating table to realize image acquisition of different positions of a motor coil, without using multiple cameras and image comparison equipment to shoot different positions of the motor coil, which greatly reduces the cost of visual detection of the motor coil, improves the practicality and work efficiency of the motor coil visual detection device, and makes the automatic operation performance of the motor coil visual detection device more superior. By setting up a loading and unloading mechanism, the loading and unloading of the motor coil can be completed without affecting the smooth visual detection of the motor coil, so that the motor coil visual detection device can not only perform visual detection of the motor coil at a lower cost when in use, but also automatically load and unload, further increasing the practicality and automation performance of the motor coil visual detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional diagram of the base plate of the present invention;

[0025] Figure 2 is a three-dimensional diagram of the fixing cylinder of the present invention;

[0026] Figure 3 A perspective view of a cross-sectional view of a rotating table of the present invention;

[0027] Figure 4 is a three-dimensional diagram of the electric push rod of the present invention;

[0028] Figure 5 A perspective view of a cross-sectional view of a support frame of the present invention;

[0029] Figure 6 A perspective view of a cross-sectional view of a moving block of the present invention;

[0030] Figure 7 A perspective view of a cross-sectional view of a clamping column of the present invention;

[0031] Among them: 1. Bottom plate; 2. Detection mechanism; 201. Fixed cylinder; 202. Thrust bearing; 203. Turntable; 204. Camera; 205. Clamping column; 206. Gear ring; 207. Stepper motor; 208. Transmission slot; 209. Connecting rod; 210. Big gear; 211. First transmission gear; 212. Second transmission gear; 213. Fixed rod; 3. Loading and unloading mechanism; 301. Support frame; 302. Electric push rod; 303. Moving block; 304. Step seat; 305, first screw; 306, rotating motor; 307, servo motor; 308, second screw; 309, moving seat; 310, movable frame; 311, clamping plate; 4, loading rack; 5, unloading rack; 6, fixing bolt; 7, stabilizing seat; 8, positioning block; 9, positioning column; 10, stabilizing ring; 11, positioning seat; 12, reinforcement ring; 13, gear disc; 14, clamping frame; 15, limiting rod; 16, compression spring; 17, limiting frame; 18, reinforcing rib.

[0032] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0033] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0037] Reference Figures 1 to 7 The present invention proposes a visual inspection device for a motor coil, comprising a bottom plate 1, a detection mechanism 2 is arranged above the bottom plate 1, and a loading and unloading mechanism 3 is arranged above the detection mechanism 2;

[0038] The detection mechanism 2 includes a fixed cylinder 201, the bottom surface of the fixed cylinder 201 is fixedly connected to the upper end surface of the bottom plate 1, the outer surface of the fixed cylinder 201 is sleeved with a thrust bearing 202, the upper end surface of the outer ring of the thrust bearing 202 is fixedly connected to a rotating table 203, the upper end surface of the rotating table 203 is fixedly connected to a camera 204, a clamping column 205 is arranged above the rotating table 203, and the clamping column 205 is arranged on the right side of the camera 204, the inner wall of the fixed cylinder 201 is fixedly connected to a gear ring 206, and a stepping motor 207 is arranged below the rotating table 203, and the output end of the stepping motor 207 power is connected to the bottom surface of the rotating table 203. A transmission groove 208 is provided on the upper end surface of the rotating table 203, and a connecting rod 209 is rotatably connected inside the rotating table 203. The bottom end of the connecting rod 209 is fixedly connected to a large gear 210, and the outer surface of the large gear 210 is meshed with the inner wall of the ring gear 206. The top of the connecting rod 209 is fixedly connected to a first transmission gear 211, and the first transmission gear 211 is arranged inside the transmission groove 208. The outer surface of the first transmission gear 211 is meshed with a second transmission gear 212. The upper end surface of the second transmission gear 212 is fixedly connected to a fixing rod 213, and the top end of the fixing rod 213 is fixedly connected to the bottom surface of the clamping column 205.

[0039] The upper end surface of the base plate 1 is fixedly connected to a loading rack 4, which is arranged on the right side of the detection mechanism 2. The upper end surface of the base plate 1 is fixedly connected to a unloading rack 5, which is arranged on the left side of the detection mechanism 2. The loading rack 4 can be used to place motor coils, and the positioning pins on the loading rack 4 are used to locate the position of the motor coil to ensure that each loaded motor coil is located at the same angle and position. The unloading rack 5 can assist in unloading the motor coils that have been tested.

[0040] The camera 204 is threadedly connected with four fixing bolts 6, and the bottom end of each fixing bolt 6 passes through the interior of the rotating table 203. Each fixing bolt 6 is threadedly connected to the rotating table 203. The fixing bolts 6 can further fix the position of the camera 204 on the rotating table 203, increase the firmness of the camera 204 when in use, and ensure that the camera 204 can smoothly capture the image of the motor coil.

[0041] One side of the stepper motor 207 is fixedly connected to a stabilizing seat 7, and the bottom surface of the stabilizing seat 7 is fixedly connected to the upper end surface of the base plate 1. The stabilizing seat 7 can improve the connection tightness between the stepper motor 207 and the base plate 1, which not only locates the position of the stepper motor 207, but also ensures that the stepper motor 207 can smoothly drive the rotating table 203 to rotate.

[0042] The outer surface of the fixing rod 213 is fixedly connected with a reinforcement ring 12, and the upper end surface of the reinforcement ring 12 is fixedly connected to the bottom surface of the clamping column 205. The reinforcement ring 12 can increase the connection firmness between the fixing rod 213 and the clamping column 205, making it difficult for the fixing rod 213 to separate from the clamping column 205, thereby increasing the reliability of the use of the fixing rod 213.

[0043] The specific implementation of this embodiment is as follows: the power provided by the stepper motor 207 cooperates with the fixation of the stabilizing seat 7 and the base plate 1, as well as the fixation of the fixing cylinder 201 and the rotation of the thrust bearing 202, so as to drive the rotating table 203 to rotate. When the rotating table 203 rotates, the large gear 210 can be driven to rotate through the connecting rod 209. Since the large gear 210 is meshed with the gear ring 206, when the large gear 210 rotates, the connecting rod 209 and the first transmission gear 211 can be driven to rotate. When the first transmission gear 211 rotates, the clamping column 205 can be driven to rotate through the second transmission gear 212, the fixing rod 213 and the reinforcement ring 12. Then, when the rotating table 203 rotates 180 degrees to move the motor coil from the loading position to the unloading position, the clamping column 205 can rotate. The motor coil 206 can be rotated 360 degrees, and by utilizing the characteristics of the stepper motor 207, it can be rotated by a small angle each time and stop to allow the camera 204 to shoot the rotated motor coil until all positions outside the motor coil are shot without blind spots. At this time, the camera 204 is connected to the image comparison device for electrical signal connection to realize the visual inspection of the motor coil, so that the motor coil visual inspection device can use only one camera 204 to realize image collection of different positions of a motor coil, and there is no need to use multiple cameras 204 and multiple image comparison devices to shoot different positions of the motor coil for comparison, which greatly reduces the cost of motor coil visual inspection, improves the practicability and work efficiency of the motor coil visual inspection device, and makes the automatic operation performance of the motor coil visual inspection device more superior.

[0044] See also Figure 1-7 The loading and unloading mechanism 3 includes a support frame 301, which is arranged above the rotating table 203. Two electric push rods 302 are fixedly connected to the bottom surface of the support frame 301. The bottom end of each electric push rod 302 is fixedly connected to the upper end surface of the rotating table 203. The support frame 301 is internally slidably connected to a moving block 303. The moving block 303 is internally rotatably connected to a stepped seat 304. The bottom surface of the stepped seat 304 is fixedly connected to the upper end surface of the clamping column 205. The support frame 301 is internally rotatably connected to a first screw 305. The first screw 305 is threadedly connected to the inner wall of the moving block 303. A rotating motor 306 is provided on one side of the frame 301, and the output end of the rotating motor 306 power is fixedly connected to one end of the first screw 305, and the inner top wall of the clamping column 205 is fixedly connected to a servo motor 307, and the output end of the servo motor 307 power is fixedly connected to a second screw 308, and the second screw 308 is threadedly connected to a movable seat 309, and the movable seat 309 is slidably connected to the inside of the clamping column 205. The outer surface of the movable seat 309 and the outer surface of the clamping column 205 are jointly movably hinged with four movable frames 310, and each movable frame 310 is movably connected to a clamping plate 311 at one end facing away from the clamping column.

[0045] Two positioning blocks 8 are fixedly connected to one side of the support frame 301 facing the rotating motor, and positioning columns 9 are slidably connected inside the two positioning blocks 8. The bottom ends of the two positioning columns 9 are fixedly connected to the upper end surface of the rotating table 203. By sliding the positioning columns 9 inside the positioning blocks 8, the stability of the support frame 301 when moving up and down can be increased, making it less likely for the support frame 301 to deviate during the up and down movement, thereby ensuring the stable operation of the support frame 301.

[0046] The outer surfaces of the two electric push rods 302 are fixedly connected with stabilizing rings 10, and the bottom surfaces of the two stabilizing rings 10 are fixedly connected to the upper end surface of the rotating table 203. The stabilizing rings 10 can increase the stability of the electric push rods 302, make the connection between the electric push rods 302 and the rotating table 203 less likely to loosen, and increase the reliability of the use of the electric push rods 302.

[0047] The upper end surface of the rotating motor 306 is fixedly connected with a positioning seat 11, and one side of the positioning seat 11 is fixedly connected to the left side surface of the support frame 301. The positioning seat 11 can locate the position of the rotating motor 306, increase the connection tightness between the rotating motor 306 and the support frame 301, and ensure that the rotating motor 306 can operate stably.

[0048] The outer surface of the clamping column 205 is fixedly connected to a toothed disc 13, and the outer surface of the toothed disc 13 is meshedly connected to a clamping frame 14. One side of the clamping frame 14 is fixedly connected to two limit rods 15, and the two limit rods 15 are slidably connected to the inside of the moving block 303. The outer surfaces of the two limit rods 15 are sleeved with compression springs 16, and the two compression springs 16 are fixedly connected to the left side of the moving block 303. The upper end surface of the rotating table 203 is fixedly connected to the limit frame 17, and the left ends of the two limit rods 15 are in contact with the right side of the limit frame 17. The elastic force provided by the compression spring 16 cooperates with the limit rod 15 to provide a leftward thrust for the clamping frame 14, so that the clamping frame 14 and the toothed disk 13 remain engaged, which can prevent the clamping column 205 from rotating. When the clamping column 205 moves to the left until the limit rod 15 contacts the limit frame 17, the limit frame 17 can push the limit rod 15 to move to the right as the clamping column 205 moves, and forces the compression spring 16 to contract. At this time, the clamping frame 14 is disengaged from the toothed disk 13, so that the clamping column 205 can be positioned or released as needed.

[0049] Two reinforcing ribs 18 are fixedly connected to one side of the limit frame 17, and the bottom surfaces of the two reinforcing ribs 18 are fixedly connected to the upper end surface of the rotating table 203. The reinforcing ribs 18 can increase the connection firmness between the limit frame 17 and the rotating table 203, making it difficult for the limit frame 17 to deform during use, thereby improving the bearing capacity of the limit frame 17.

[0050] The specific implementation of this embodiment is as follows: the power provided by the rotating motor 306 is used in conjunction with the support frame 301 to drive the first screw 305 to rotate. When the first screw 305 rotates, it can drive the moving block 303 to move left and right inside the support frame 301, until the moving block 303 drives the clamping column 205 to move above the loading rack 4, the electric push rod 302 contracts, drives the support frame 301 and the clamping column 205 to move downward, so that the clamping column 205 is inserted into the hollow part in the middle of the motor coil, and then the servo motor 307 drives the second screw 308 to rotate, which can drive the moving seat 309 to move downward. At this time, the activity of the movable frame 310 can force the four clamping plates 311 to expand outward. , and then clamp the motor coil from the inside, so that the motor coil can achieve the clamping work without blocking the external structure of the motor coil, ensuring the normal progress of the visual inspection work, and then the electric push rod 302 pushes the support frame 301 upward, and the rotating motor 306 rotates in the opposite direction, driving the moving block 303 to slide to the left until the second transmission gear 212 slides inside the transmission groove 208 to engage with the first transmission gear 211. At this time, the limit frame 17 can push the limit rod 15 to move right with the movement of the clamping column 205, and force the compression spring 16 to contract, and let the clamping frame 14 disengage from the toothed disc 13, so that the clamping column 205 can rotate under the limit of the stepped seat 304, so that the motor coil can Perform rotational visual inspection. When the rotating table 203 rotates 180 degrees to complete the visual inspection work, and the clamping column 205 drives the motor coil to be located above the unloading rack 5, the electric push rod 302 contracts again, driving the support frame 301 to move downward until the motor coil is placed on the unloading rack 5, and then the servo motor 307 reverses to make the clamping plate 311 loosen the fixation of the motor coil to complete the unloading work. Then the stepper motor 207 reverses 180 degrees to drive the support frame 301 and the clamping column 205 to restore their initial positions. When the clamping column 205 moves to the left to load the motor coil, the limit rod 15 will be out of contact with the limit frame 17. At this time, the elastic force provided by the compression spring 16 will push the limit The rod 15 and the clamping frame 14 move to the left until the clamping frame 14 re-engages with the toothed disc 13, so that the clamping column 205 will not rotate during the loading process, thereby preventing the clamping column 205 from rotating during the loading process, causing the position of the motor coil to change, affecting the smooth progress of the subsequent image comparison visual inspection work, so that the motor coil visual inspection device can complete the loading and unloading of the motor coil without affecting the smooth visual inspection of the motor coil, so that the motor coil visual inspection device can not only perform visual inspection of the motor coil at a lower cost when in use, but also can automatically load and unload, further increasing the practicality and automation performance of the motor coil visual inspection device.

[0051] The working principle of the present invention is as follows: when in use, the camera 204, the stepper motor 207, the electric push rod 302, the rotary motor 306 and the servo motor 307 are first connected to the external power supply and the controller, and the camera 204 is connected to the image comparison device through a signal line. When the motor coil needs to be visually inspected, the position of the motor coil is located by using the positioning pin on the loading rack 4. The power provided by the rotary motor 306 cooperates with the support frame 301 to drive the first screw 305 to rotate. When the first screw 305 rotates, it can drive the moving block 303 to move left and right inside the support frame 301, until the moving block 303 drives the clamping column 205 to move above the loading rack 4, the electric push rod 302 contracts, drives the support frame 301 and the clamping column 205 to move downward, so that the clamping column 205 is inserted into the hollow part in the middle of the motor coil, and then the servo motor 307 drives the second screw 3 08 is rotated, which can drive the moving seat 309 to move downward. At this time, the movement of the movable frame 310 can force the four clamping plates 311 to expand outward, and then clamp the motor coil from the inside, so that the motor coil can achieve the clamping work without blocking the external structure of the motor coil, ensuring the normal progress of the visual inspection work. Then the electric push rod 302 pushes the support frame 301 upward, and the rotating motor 306 rotates in the opposite direction, driving the moving block 303 to slide to the left until the second transmission gear 212 slides inside the transmission groove 208 to engage with the first transmission gear 211. At this time, the limiting frame 17 can push the limiting rod 15 to move rightward with the movement of the clamping column 205, and force the compression spring 16 to contract, and let the clamping frame 14 disengage from the toothed disc 13, so that the clamping column 205 can rotate under the limit of the stepped seat 304, so that the motor coil can be rotated for visual inspection;

[0052] The power provided by the stepper motor 207 cooperates with the fixation of the stabilizing seat 7 and the base plate 1, as well as the fixation of the fixing cylinder 201 and the rotation of the thrust bearing 202, so as to drive the rotating table 203 to rotate. When the rotating table 203 rotates, the large gear 210 can be driven to rotate through the connecting rod 209. Since the large gear 210 is meshed with the gear ring 206, when the large gear 210 rotates, the connecting rod 209 and the first transmission gear 211 can be driven to rotate. When the first transmission gear 211 rotates, the clamping column 205 can be driven to rotate through the second transmission gear 212, the fixing rod 213 and the reinforcement ring 12. Then, when the rotating table 203 rotates 180 degrees, the motor After the coil moves from the loading position to the unloading position, the clamping column 205 can rotate 360 ​​degrees. By utilizing the characteristics of the stepping motor 207, it can rotate only a small angle each time and stop to allow the camera 204 to shoot the rotated motor coil until all positions outside the motor coil are shot without blind spots. At this time, the camera 204 is connected to the image comparison device through electrical signals to realize visual inspection of the motor coil, so that the motor coil visual inspection device can use only one camera 204 to realize image acquisition of different positions of a motor coil, without using multiple cameras 204 and multiple image comparison devices to shoot different positions of the motor coil and compare them;

[0053] When the rotating table 203 rotates 180 degrees to complete the visual inspection work, and the clamping column 205 drives the motor coil to be located above the unloading rack 5, the electric push rod 302 contracts again, driving the support frame 301 to move downward until the motor coil is placed on the unloading rack 5, and then the servo motor 307 reverses to make the clamping plate 311 loosen the fixation of the motor coil to complete the unloading work, and then the stepper motor 207 reverses 180 degrees to drive the support frame 301 and the clamping column 205 to restore their initial positions. When the clamping column 205 moves to the left to load the motor coil, the limit rod 15 will be out of contact with the limit frame 17. At this time, the elastic force provided by the compression spring 16 will push the limit rod 15 and the clamping column 205 to the original position. The connecting frame 14 moves to the left until the clamping frame 14 and the toothed disc 13 are re-engaged, so that the clamping column 205 will not rotate during the loading process, thereby preventing the clamping column 205 from rotating during the loading process, causing the position of the motor coil to change, affecting the smooth progress of the subsequent image comparison visual inspection work, so that the motor coil visual inspection device can complete the loading and unloading of the motor coil without affecting the smooth visual inspection of the motor coil, so that the motor coil visual inspection device can not only perform visual inspection of the motor coil at a lower cost when in use, but also can automatically load and unload, further increasing the practicality and automation performance of the motor coil visual inspection device.

[0054] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A visual inspection device for motor coils, characterized in that: It comprises a bottom plate (1) and a detection mechanism (2) arranged on the upper end surface of the bottom plate (1), and a loading and unloading mechanism (3) is arranged above the detection mechanism (2); The detection mechanism (2) comprises a fixed cylinder (201) fixedly arranged on the upper end surface of the base plate (1), the fixed cylinder (201) being rotatably connected to a rotating platform (203), and the inner wall of the fixed cylinder (201) being fixedly connected to a gear ring (206), a connecting rod (209) passing through the rotating platform (203), a large gear (210) being fixedly connected to the bottom end of the connecting rod (209), the large gear (210) being meshed with the gear ring (206), and the connecting rod (209) being connected to a clamping column (205) for mounting a motor coil, wherein a camera (204) facing the clamping column (205) is arranged on the upper end surface of the rotating platform (203), and when the rotating platform (203) is rotated, the clamping column (205) rotates, and the camera (204) and the clamping column (205) revolve synchronously; The loading and unloading mechanism (3) is provided with a moving block (303) for pushing the clamping column (205) so that the clamping column (205) can complete loading and unloading; The outer surface of the fixed cylinder (201) is sleeved with a thrust bearing (202); the upper end surface of the outer ring of the thrust bearing (202) is fixedly connected to the rotating table (203); a stepping motor (207) is arranged below the rotating table (203); and the output end of the power of the stepping motor (207) is connected to the bottom surface of the rotating table (203); The upper end surface of the rotating table (203) is provided with a transmission groove (208), the transmission groove (208) is penetrated by the connecting rod (209), the top end of the connecting rod (209) is fixedly connected to a first transmission gear (211), the first transmission gear (211) is arranged on the upper end surface of the transmission groove (208), the first transmission gear (211) is meshingly connected to a second transmission gear (212), the upper end surface of the second transmission gear (212) is fixedly connected to a fixing rod (213), and the top end of the fixing rod (213) is fixedly connected to the bottom surface of the clamping column (205); The loading and unloading mechanism (3) further comprises a support frame (301), wherein the support frame (301) is arranged above the rotating table (203), and two electric push rods (302) are fixedly connected to the bottom surface of the support frame (301), and the bottom end of each electric push rod (302) is fixedly connected to the upper end surface of the rotating table (203); The support frame (301) is slidably connected to the moving block (303); the moving block (303) is internally rotatably connected to a stepped seat (304); the bottom surface of the stepped seat (304) is fixedly connected to the upper end surface of the clamping column (205); the support frame (301) is internally rotatably connected to a first screw rod (305); the first screw rod (305) is threadedly connected to the inner wall of the moving block (303); a rotating motor (306) is provided on one side of the support frame (301); the output end of the rotating motor (306) is fixedly connected to one end of the first screw rod (305). The inner top wall of the clamping column (205) is fixedly connected to a servo motor (307), the output end of the servo motor (307) is fixedly connected to a second screw rod (308), the second screw rod (308) is threadedly connected to a movable seat (309), the movable seat (309) is slidably connected to the inside of the clamping column (205), the outer surface of the movable seat (309) and the outer surface of the clamping column (205) are jointly movably hinged to four movable frames (310), and each of the movable frames (310) is movably connected to a clamping plate (311) at one end away from the clamping column.

2. A visual inspection device for motor coils according to claim 1, characterized in that: A loading rack (4) is fixedly connected to the upper end surface of the bottom plate (1); the loading rack (4) is arranged on one side of the detection mechanism (2); and a unloading rack (5) is arranged on the side of the detection mechanism (2) away from the loading rack (4); The camera (204) is threadedly connected to four fixing bolts (6), the bottom end of each fixing bolt (6) penetrates into the interior of the rotating platform (203), and each fixing bolt (6) is threadedly connected to the rotating platform (203).

3. The visual inspection device for motor coils according to claim 1, characterized in that: A stabilizing seat (7) is fixedly connected to one side of the stepping motor (207), and the bottom surface of the stabilizing seat (7) is fixedly connected to the upper end surface of the bottom plate (1); Two positioning blocks (8) are fixedly connected to one side of the support frame (301) facing the rotating motor (306), a positioning column (9) is slidably connected inside the positioning block (8), and the bottom end of the positioning column (9) is fixedly connected to the upper end surface of the rotating table (203).

4. The visual inspection device for motor coils according to claim 1, characterized in that: The outer surfaces of the two electric push rods (302) are both fixedly connected to a stabilizing ring (10), and the bottom surfaces of the two stabilizing rings (10) are both fixedly connected to the upper end surface of the rotating platform (203).

5. The visual inspection device for motor coils according to claim 1, characterized in that: A positioning seat (11) is fixedly connected to the upper end surface of the rotating motor (306), and one side of the positioning seat (11) is fixedly connected to the support frame (301).

6. The visual inspection device for motor coils according to claim 1, characterized in that: A reinforcement ring (12) is fixedly connected to the outer surface of the fixing rod (213), and the upper end surface of the reinforcement ring (12) is fixedly connected to the bottom surface of the clamping column (205).

7. The visual inspection device for motor coils according to claim 1, characterized in that: The outer surface of the clamping column (205) is fixedly connected to a toothed disc (13), and the outer surface of the toothed disc (13) is meshingly connected to a clamping frame (14). One side of the clamping frame (14) is fixedly connected to two limit rods (15), and the two limit rods (15) are slidably connected to the inside of the moving block (303). The outer surfaces of the two limit rods (15) are sleeved with compression springs (16), and the two compression springs (16) are fixedly connected to the moving block (303). The upper end surface of the rotating table (203) is fixedly connected to the limit frame (17), and the left ends of the two limit rods (15) are in contact with the right side surface of the limit frame (17).

8. The visual inspection device for motor coils according to claim 7, characterized in that: Two reinforcing ribs (18) are fixedly connected to one side of the limiting frame (17), and the bottom surfaces of the two reinforcing ribs (18) are fixedly connected to the upper end surface of the rotating platform (203).

Images