LED lamp bead gold thread welding quality tracing device based on machine vision

Abstract

The invention relates to the technical field of LED lamp bead processing and detection, and discloses an LED lamp bead gold thread welding quality tracing device based on machine vision, which comprises a shell, a detection platform is rotatably mounted in the middle of the shell, an electric sliding table and a continuous shooting camera are arranged above the detection platform, and a placement groove for fixing an LED lamp strip is formed in the upper surface of the detection platform. A translation plate is slidably installed on the electric sliding table, the continuous shooting camera is located in the center of the bottom of the translation plate, a line height camera is further arranged at the bottom of the translation plate, rotating shafts are fixedly installed on the two sides of the detection platform, and an indexing mechanism is arranged on the machine shell, connected with the rotating shafts and used for driving the detection platform to overturn when the line height camera works; when detection begins, the detection platform is perpendicular to 90 degrees, and when the detection platform is overturned to be horizontal, the continuous shooting camera carries out shooting detection. According to the scheme, manual visual inspection of the line height of the lamp bead is simulated, the line height camera is matched with the continuous shooting camera, multi-angle multifunctional detection is achieved, and the detection accuracy of the LED lamp bead bonding wire is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of LED lamp bead processing and detection, and in particular to a device for tracing the quality of gold wire welding of LED lamp beads based on machine vision. Background Art

[0002] Among the related technologies, gold wire welding of LED lamp beads is the core process technology in LED packaging. Its essence is to achieve electrical connectivity and mechanical fixation between the LED chip electrodes and the bracket pins through metal wires. Welding defects may cause micron-level contact failure. Inspection can identify hidden dangers such as cold soldering and breakage. Therefore, inspection after gold wire welding is the core link of LED packaging quality control.

[0003] Because the gold wires of LED lamp beads are extremely fine, machine vision inspection technology has been widely used in this field. By combining industrial cameras with sensors, it utilizes microscopic imaging and image analysis to achieve micron-level inspection accuracy. Machine vision replaces traditional microscopic visual inspection, effectively reducing manual inspection errors, recording gold wire parameters, and enabling data traceability. Furthermore, LED lamp beads are currently often used in combination in the form of light strips. To accommodate the demands of large-scale production, inspection technology has shifted from single-bead inspection to simultaneous inspection of multiple beads in arrays. A common approach is to use a linear array camera coupled with a uniform motion platform for continuous scanning, capturing information about the solder wires of multiple beads simultaneously.

[0004] The proper wire height for LED lamp beads ensures a good electrical connection between the chip and the bracket pins. Improper height can lead to poor contact, increased resistance, or even open circuits, affecting the normal operation of the lamp beads. Due to the dense arrangement of LED lamp beads, the camera's imaging angle of the side of the lamp beads when photographed from a bird's-eye view is limited, resulting in inaccurate wire height data analysis and unable to meet the requirements of high-precision quality inspection. Therefore, this does not meet existing needs. To address this, we have proposed a machine vision-based device for tracing the quality of LED lamp bead gold wire welding. Summary of the Invention

[0005] The present invention provides a device for tracing the quality of gold wire welding of LED lamp beads based on machine vision. The device can use two cameras to cooperate in multi-angle visual inspection of a rectangular array of LED lamp beads to achieve high-precision quality inspection requirements. It solves the problem mentioned in the above background technology that due to the dense arrangement of LED lamp beads, the imaging angle of the camera to the side of the lamp beads under the overhead perspective is limited, resulting in the analyzed line height data being inaccurate and unable to meet the high-precision quality inspection requirements.

[0006] In order to achieve the above-mentioned purpose, the present disclosure provides a device for tracing the quality of gold wire welding of LED lamp beads based on machine vision, comprising a housing, a detection platform is rotatably installed in the middle of the housing, an electric slide and a continuous shooting camera are arranged above the detection platform, a placement groove for fixing the LED light strip is opened on the upper surface of the detection platform, a translation plate is slidably installed on the electric slide, the continuous shooting camera is located at the bottom center of the translation plate, a line height camera is also arranged at the bottom of the translation plate, rotating shafts are fixedly installed on both sides of the detection platform, a dividing mechanism is provided on the housing, and the dividing mechanism is connected to the rotating shaft, which is used to drive the detection platform to flip when the line height camera is working; When the detection starts, the detection platform is 90° vertical. When the detection platform is flipped to the horizontal position, the continuous shooting camera performs shooting detection.

[0007] Optionally, a plurality of adsorption holes are provided in the placement groove for adsorbing the LED light strip in the placement groove.

[0008] Optionally, the indexing mechanism includes a reduction motor installed on the side of the casing, the output shaft of the reduction motor is connected to the drive shaft, a track cam is fixedly installed in the middle of the drive shaft, a dividing plate is fixedly installed on the end of the rotating shaft, the dividing plate is coaxially connected to the rotating shaft, and a plurality of dividing wheels are installed on the side of the dividing plate away from the rotating shaft, and the plurality of dividing wheels are distributed in a circular array, a spiral track groove is opened on the surface of the track cam, and the dividing wheel slides in cooperation with the spiral track groove.

[0009] Optionally, a linear track groove is further provided on the track cam surface, and the linear track groove is located in the middle of the spiral track groove. When the index wheel is located in the linear track groove, the index plate stops flipping for cooperation detection.

[0010] Optionally, a hydraulic cylinder is installed on the housing, and a crank mechanism is provided on the indexing plate, for driving the hydraulic cylinder to operate when the indexing plate rotates; The line height camera includes a camera housing, a line height unit slidingly engaged with the bottom of the camera housing, a hydraulic chamber opened inside the camera housing, and a hydraulic piston working inside the hydraulic chamber. The top of the hydraulic chamber is connected to an oil inlet pipe, and the bottom of the hydraulic chamber is connected to an oil return pipe. The oil inlet pipe is connected to the top of the hydraulic cylinder, and the oil return pipe is connected to the tail end of the hydraulic cylinder.

[0011] Optionally, the crank mechanism includes a crank shaft eccentrically mounted on the dividing plate, a connecting arm is rotatably connected to the crank shaft, a piston straight arm is rotatably connected to the end of the connecting arm, and the piston straight arm is slidably plugged into the hydraulic cylinder; when the dividing plate rotates, the hydraulic pressure in the hydraulic cylinder and the hydraulic chamber is changed to achieve adjustment of the height of the line height unit.

[0012] Optionally, a connecting column is installed on the side wall of the hydraulic piston away from the oil inlet pipe, and the connecting column is connected to the line height unit. The line height unit is configured as a multi-lens camera module for photographing the welding line heights of multiple LED lamp beads in each row.

[0013] Optionally, a fixed rack is fixedly installed on the top of the casing, and the fixed rack is located above the translation plate. A transposition gear is rotatably installed on the top of the translation plate, and the transposition gear is engaged with the fixed rack. A transposition disk is rotatably installed on the bottom of the translation plate, and the transposition disk and the transposition gear are coaxially arranged and fixedly connected. A camera mounting bracket is installed on the side of the continuous shooting camera, and the camera mounting bracket is fixedly installed on the bottom of the translation plate. A transposition plate is connected to the side of the transposition disk, and the line height camera is installed at the bottom of the transposition plate.

[0014] Optionally, a limiting groove is provided at the bottom of the translation plate, the shifting plate is slidably engaged with the limiting groove, the limiting groove is set as a 180° arc groove, the limiting groove is coaxially arranged with the shifting gear, and the end points of the limiting groove are not on the symmetry line of the detection platform.

[0015] Optionally, a pipe bracket is installed on the side wall of the fixed rack.

[0016] Through the above technical solution, the machine vision-based LED lamp bead gold wire welding quality tracing device provided by the present disclosure is used: at the beginning of the inspection, the side of the LED lamp beads in the top row faces the line height camera, so that the information of the welding line height can be clearly captured for inspection and analysis. Through the setting of the dividing mechanism, the reduction motor drives the translation plate to rotate at a fixed point, and the rotation angle is the same, so that the line height camera corresponds to the side of each row of LED lamp beads, thereby simulating manual visual inspection of the lamp bead line height. The line height camera cooperates with the continuous shooting camera to realize multi-angle and multi-functional detection, thereby improving the detection accuracy of the LED lamp bead welding line.

[0017] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings: Figure 1 This is a schematic diagram of the overall axial side structure at the beginning of the detection of the present invention.

[0019] Figure 2 For the present invention Figure 1 The schematic diagram of the indexing mechanism and crank mechanism is enlarged at A.

[0020] Figure 3 For the present invention Figure 1 The enlarged line at point B shows the schematic diagram of the unit structure.

[0021] Figure 4 It is a schematic diagram of the overall explosion structure of the present invention.

[0022] Figure 5 This is a schematic diagram of the overall oblique side structure of the present invention when detecting half of the device.

[0023] Figure 6 This is a schematic diagram of the overall axial side structure of the present invention when half of the detection is performed.

[0024] Figure 7 For the present invention Figure 6 The enlarged line at point C shows the schematic diagram of the unit structure.

[0025] Figure 8 It is a schematic diagram of the three-dimensional structure of the indexing mechanism of the present invention.

[0026] Figure 9 It is a schematic structural diagram of the indexing wheel of the present invention.

[0027] Figure 10 It is a schematic diagram of the cross-sectional structure of the indexing wheel and crank mechanism of the present invention.

[0028] Figure 11 It is a schematic diagram of the structure of the continuous shooting camera and the line height camera when the continuous shooting detection starts in the present invention.

[0029] Figure 12 It is a schematic diagram of the structure of the continuous shooting camera and the line height camera when the continuous shooting detection of the present invention ends.

[0030] Figure 13 This is a schematic diagram of the cross-sectional structure of the line height camera of the present invention.

[0031] Explanation of reference numerals: 110, housing; 120, detection platform; 121, placement groove; 122, adsorption hole; 130, electric slide; 140, translation plate; 150, rotating shaft; 160, indexing plate; 161, indexing wheel; 170, reduction motor; 171, driving shaft; 180, track cam; 181, spiral track groove; 182, linear track groove; 210, continuous shooting camera; 220, line height camera; 221, phase Casing; 222, line height unit; 223, hydraulic chamber; 224, hydraulic piston; 225, connecting column; 230, transposition plate; 240, transposition disk; 250, camera mounting bracket; 260, limiting slide; 310, crank shaft; 320, connecting arm; 330, piston straight arm; 340, hydraulic cylinder; 510, fixed rack; 520, transposition gear; 610, oil inlet pipe; 620, oil return pipe; 630, pipe bracket. DETAILED DESCRIPTION

[0032] To make the above-mentioned objects, features, and advantages of the present disclosure more clearly understood, specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present disclosure. However, the present disclosure can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without violating the scope of the present disclosure. Therefore, the present disclosure is not limited to the specific embodiments disclosed below.

[0033] In the description of the present disclosure, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply 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 a limitation on the present disclosure. The terms "first" and "second" are used to distinguish one element from another and do not have sequentiality or importance. In addition, when the following description refers to the drawings, the same figure marks in different drawings represent the same or similar elements, which are not repeated in this disclosure.

[0034] In this disclosure, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components, unless otherwise expressly limited. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on specific circumstances.

[0035] According to some embodiments of the present disclosure, a device for tracing the quality of LED lamp bead gold wire welding based on machine vision is provided, referring to Figures 1-13As shown in , the machine vision-based LED lamp bead gold wire welding quality tracing device includes a housing 110, a detection platform 120 is rotatably installed in the middle of the housing 110, an electric slide 130 and a continuous shooting camera 210 are arranged above the detection platform 120, a placement groove 121 for fixing the LED light strip is opened on the upper surface of the detection platform 120, a translation plate 140 is slidably installed on the electric slide 130, the continuous shooting camera 210 is located at the bottom center of the translation plate 140, and a line height camera 220 is also arranged at the bottom of the translation plate 140. The line height unit 222 is configured as a multi-lens camera module for capturing the welding wire height of multiple LED lamp beads in each row. The multi-lens module covers multiple lamp beads in a single row to ensure the capture accuracy of the side welding wire height. Rotating shafts 150 are fixedly installed on both sides of the detection platform 120, and a dividing mechanism is provided on the housing 110. The dividing mechanism is connected to the rotating shaft 150 and is used to drive the detection platform 120 to flip when the line height camera 220 is working.

[0036] When the inspection begins, the inspection platform 120 is vertical at 90°. When the inspection platform 120 is flipped to be horizontal, the continuous shooting camera 210 performs shooting inspection.

[0037] In addition, the electric slide 130 is fixedly installed above the casing 110. The electric slide 130 is configured as a screw slide. Several adsorption holes 122 are provided in the placement groove 121 for adsorbing the LED light strip in the placement groove 121. An air pump is installed on the side of the translation plate 140, and the air pump is connected to the adsorption hole.

[0038] Thus, by providing placement slots 121 on the translation plate 140, the LED light strip can be placed in the placement slots 121. The air pump and adsorption holes 122 cooperate to secure the LED light strip to the translation plate 140. This prevents the LED light strip from falling and remains stable and stable when the translation plate 140 is at a 90-degree angle or during rotation. This, combined with the line height camera 220 and the continuous shooting camera 210, enables multi-angle and multi-functional inspection, improving the accuracy of LED lamp bead solder wire inspection.

[0039] Furthermore, the indexing mechanism includes a reduction motor 170 installed on the side of the housing 110, the output shaft of the reduction motor 170 is connected to the drive shaft 171, a track cam 180 is fixedly installed in the middle of the drive shaft 171, a dividing plate 160 is fixedly installed at the end of the rotating shaft 150, the dividing plate 160 is coaxially connected to the rotating shaft 150, and a plurality of dividing wheels 161 are installed on the side of the dividing plate 160 away from the rotating shaft 150. The plurality of dividing wheels 161 are distributed in a circular array, and a spiral track groove 181 is opened on the surface of the track cam 180, and the dividing wheel 161 slides in cooperation with the spiral track groove 181.

[0040] See Figure 9A linear track groove 182 is also provided on the surface of the track cam 180. The linear track groove 182 is located in the middle of the spiral track groove 181. When the indexing wheel 161 is located in the linear track groove 182, the indexing plate 160 stops flipping for cooperation detection.

[0041] Specifically, the rotating shaft 150 is on the central axis of the translation plate 140, see Figure 1 and Figure 8 When the track cam 180 rotates, the spiral track groove 181 engages with the indexing wheel 161, which can drive the indexing wheel 161 to move, thereby driving the indexing plate 160 to rotate, causing the angle of the translation plate 140 to rotate. In this embodiment, the LED lamp beads are arranged in 8 rows, and there are 16 indexing wheels 161.

[0042] Through the above technical solution, the machine vision-based LED lamp bead gold wire welding quality traceability device provided by the present disclosure is used. At the beginning of the inspection, the side of the top row of LED lamp beads faces the line height camera 220, so that the information of the welding line height can be clearly captured for inspection and analysis. Through the setting of the indexing mechanism, the reduction motor 170 drives the translation plate 140 to rotate at a fixed point, and the rotation angle is the same, so that the line height camera 220 corresponds to the side of each row of LED lamp beads, thereby simulating manual visual inspection of the lamp bead line height. In this embodiment, the LED lamp beads are arranged in 8 rows and the indexing wheel 161 is provided with 16. Therefore, the indexing plate 160 rotates 22.5 degrees each time and becomes horizontal in the middle. At this time, the electric slide 130 drives the translation plate 140 to move, and during the movement, the continuous shooting camera 210 performs a top-down inspection of the LED lamp beads to achieve a front-view inspection of the lamp bead welding line. When the continuous shooting camera 210 completes the inspection, the indexing plate 160 continues to rotate and the line height camera 220 continues to shoot the side of the LED lamp beads for inspection.

[0043] It should be noted that if the LED strip being inspected is too wide, the reduction motor 170 can be stopped when the translation plate 140 is flipped to a horizontal position, providing sufficient time for the continuous shooting camera 210 to operate. Both the line height camera 220 and the continuous shooting camera 210 are existing industrial cameras.

[0044] In some embodiments of the present disclosure, reference Figures 1-13As shown in the figure, a fixed rack 510 is fixedly installed above the housing 110, and the fixed rack 510 is located above the translation plate 140. A transposition gear 520 is rotatably installed on the top of the translation plate 140, and the transposition gear 520 is engaged with the fixed rack 510. A transposition disk 240 is rotatably installed at the bottom of the translation plate 140, and the transposition disk 240 and the transposition gear 520 are coaxially arranged and fixedly connected. A camera mounting bracket 250 is installed on the side of the continuous shooting camera 210, and the camera mounting bracket 250 is fixedly installed on the bottom of the translation plate 140. A transposition plate 230 is connected to the side of the transposition disk 240, and the line height camera 220 is installed at the bottom of the transposition plate 230.

[0045] For details, see Figure 5 A limiting groove 260 is provided at the bottom of the translation plate 140, and the shifting plate 230 slides and engages with the limiting groove 260. The limiting groove 260 is set as a 180° arc groove. The limiting groove 260 is coaxially arranged with the shifting gear 520, and the end points of the limiting groove 260 are not on the symmetry line of the translation plate 140.

[0046] So, see Figure 11 and Figure 12 By ensuring that the end points of both ends of the limiting slide 260 are not on the symmetry line of the translation plate 140 and taking the vertical plane where the rotating shaft 150 is located as the reference plane, the line height camera 220 is located opposite to the row of LED lamp beads to be measured. This setting can make the angle of the line height camera 220 relative to the LED lamp beads more inclined, so that its detection angle of view is located between the two rows of LED lamp beads, reducing the obstruction of the upper row of lamp beads to the row to be measured, better capturing the pattern on the side of the lamp beads, and improving the accuracy of the wire height detection.

[0047] Furthermore, at the start of the inspection, the translation plate 140 is positioned at a 90° vertical position. Throughout the inspection process, the translation plate 140 rotates 180°, so at the end of the inspection, the translation plate 140 is also at a 90° vertical position. Since all LEDs are located on the same side of the translation plate 140, if the front-to-back position of the line height camera 220 remains unchanged, during the second half of the inspection, the line height camera 220 will be positioned on the same side of the row of LEDs being tested, using the vertical plane of the rotation axis 150 as the reference plane. This significantly changes the inspection parameters, resulting in a difference in viewing angle, making the data from the entire inspection process incomparable.

[0048] Through the cooperation of the fixed rack 510 and the transposition gear 520, when the electric slide 130 is running, the transposition disk 240 and the transposition plate 230 rotate 180°, and the position of the line height camera 220 relative to the translation plate 140 changes, so that the line height camera 220 moves from one side above the rotating shaft 150 to the other side opposite. In this way, the relative observation angle of the line height camera 220 to the LED lamp beads does not change, and the detection of the second half is kept as consistent as possible with the detection of the first half, thereby improving the uniformity of the data and the accuracy of the detection results.

[0049] Furthermore, a hydraulic cylinder 340 is installed on the housing 110 , and a crank mechanism is provided on the indexing plate 160 for driving the hydraulic cylinder 340 to operate when the indexing plate 160 rotates.

[0050] See Figure 13 The line height camera 220 includes a camera housing 221, a line height unit 222 that slides and engages with the bottom of the camera housing 221, a hydraulic chamber 223 defined within the camera housing 221, and a hydraulic piston 224 operating within the hydraulic chamber 223. An oil inlet pipe 610 is connected to the top of the hydraulic chamber 223, and an oil return pipe 620 is connected to the bottom of the hydraulic chamber 223. The oil inlet pipe 610 is connected to the top of the hydraulic cylinder 340, and the oil return pipe 620 is connected to the rear end of the hydraulic cylinder 340. Both the oil inlet pipe 610 and the oil return pipe 620 are configured as hoses. A pipe bracket 630 is mounted on the side wall of the fixed rack 510. The pipe bracket 630 is used to fix the height of the oil inlet pipe 610 and the oil return pipe 620 to prevent line entanglement.

[0051] Among them, see Figure 10 The crank mechanism includes a crank shaft 310 eccentrically mounted on the dividing plate 160, and a connecting arm 320 is rotatably connected to the crank shaft 310. The end of the connecting arm 320 is rotatably connected to a piston straight arm 330, and the piston straight arm 330 is slidably plugged into the hydraulic cylinder 340; when the dividing plate 160 rotates, the hydraulic pressure in the hydraulic cylinder 340 and the hydraulic chamber 223 is changed to achieve the adjustment of the height of the line height unit 222.

[0052] In addition, a connecting column 225 is installed on the side wall of the hydraulic piston 224 away from the oil inlet pipe 610. The connecting column 225 is connected to the line height unit 222. When the hydraulic piston 224 moves, it can directly drive the line height unit 222 to move.

[0053] Through the setting of the hydraulic mechanism, when the dividing plate 160 rotates, the hydraulic pressure is used to change the height of the line height unit 222. Every time the dividing plate 160 rotates one gear, the line height unit 222 drops one gear, thereby compensating for the drop in the position of the LED lamp beads caused by the flipping of the translation plate 140. Through the characteristics of the crank mechanism, when the dividing plate 160 rotates more than 90°, the piston straight arm 330 changes from pushing to pulling, so that the line height unit 222 begins to rise, thereby corresponding to the position of the LED lamp beads in the second half of the detection, further improving the uniformity of the data and improving the accuracy of the detection.

[0054] It should be noted that the hydraulic cylinder 340 and the hydraulic chamber 223 are both existing technologies and will not be described in detail here.

[0055] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0056] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0057] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A machine vision-based LED lamp bead gold wire welding quality tracing device, comprising a housing (110), a detection platform (120) rotatably mounted in the middle of the housing (110), an electric slide (130) and a continuous shooting camera (210) being arranged above the detection platform (120), characterized in that: The upper surface of the detection platform (120) is provided with a placement groove (121) for fixing the LED light strip, the electric slide (130) is slidably mounted with a translation plate (140), the continuous shooting camera (210) is located at the bottom center of the translation plate (140), and the bottom of the translation plate (140) is also provided with a line height camera (220), the two sides of the detection platform (120) are fixedly mounted with a rotating shaft (150), the housing (110) is provided with a dividing mechanism, the dividing mechanism is connected to the rotating shaft (150), and is used to drive the detection platform (120) to flip when the line height camera (220) is working; When the detection starts, the detection platform (120) is 90° vertical, and when the detection platform (120) is flipped to be horizontal, the continuous shooting camera (210) performs shooting detection.

2. The device for tracing the quality of LED lamp bead gold wire welding based on machine vision according to claim 1 is characterized in that: A plurality of adsorption holes (122) are provided in the placement groove (121) for adsorbing the LED light strip in the placement groove (121).

3. The device for tracing the quality of gold wire welding of LED lamp beads based on machine vision according to claim 1 is characterized in that: The indexing mechanism comprises a reduction motor (170) mounted on the side of the housing (110), the output shaft of the reduction motor (170) is connected to a drive shaft (171), a track cam (180) is fixedly mounted in the middle of the drive shaft (171), a dividing plate (160) is fixedly mounted on the end of the rotating shaft (150), the dividing plate (160) is coaxially connected to the rotating shaft (150), a plurality of dividing wheels (161) are mounted on the side of the dividing plate (160) away from the rotating shaft (150), the plurality of dividing wheels (161) are distributed in a circumferential array, a spiral track groove (181) is opened on the surface of the track cam (180), and the dividing wheel (161) is in sliding engagement with the spiral track groove (181).

4. The device for tracing the quality of gold wire welding of LED lamp beads based on machine vision according to claim 3 is characterized in that: A linear track groove (182) is further provided on the surface of the track cam (180), and the linear track groove (182) is located in the middle of the spiral track groove (181). When the index wheel (161) is located in the linear track groove (182), the index plate (160) stops turning for cooperation detection.

5. The device for tracing the quality of gold wire welding of LED lamp beads based on machine vision according to claim 3 is characterized in that: A hydraulic cylinder (340) is mounted on the housing (110), and a crank mechanism is provided on the indexing plate (160) for driving the hydraulic cylinder (340) to operate when the indexing plate (160) rotates; The line height camera (220) includes a camera housing (221), a line height unit (222) slidably engaged with the bottom of the camera housing (221), a hydraulic chamber (223) opened inside the camera housing (221), and a hydraulic piston (224) operating inside the hydraulic chamber (223). The top of the hydraulic chamber (223) is connected to an oil inlet pipe (610), and the bottom of the hydraulic chamber (223) is connected to an oil return pipe (620). The oil inlet pipe (610) is connected to the top of the hydraulic cylinder (340), and the oil return pipe (620) is connected to the tail end of the hydraulic cylinder (340).

6. The device for tracing the quality of gold wire welding of LED lamp beads based on machine vision according to claim 5 is characterized in that: The crank mechanism comprises a crank shaft (310) eccentrically mounted on the indexing plate (160), a connecting arm (320) being rotatably connected to the crank shaft (310), a piston straight arm (330) being rotatably connected to the end of the connecting arm (320), and the piston straight arm (330) being slidably plugged into the hydraulic cylinder (340); when the indexing plate (160) rotates, the hydraulic pressure in the hydraulic cylinder (340) and the hydraulic chamber (223) is changed, thereby achieving height adjustment of the line height unit (222).

7. The device for tracing the quality of gold wire welding of LED lamp beads based on machine vision according to claim 6, characterized in that: A connecting column (225) is installed on the side wall of the hydraulic piston (224) away from the oil inlet pipe (610), and the connecting column (225) is connected to the line height unit (222). The line height unit (222) is configured as a multi-lens camera module for photographing the height of the welding lines of multiple LED lamp beads in each row.

8. The device for tracing the quality of gold wire welding of LED lamp beads based on machine vision according to claim 1 is characterized in that: A fixed rack (510) is fixedly installed on the top of the housing (110), and the fixed rack (510) is located above the translation plate (140). A transposition gear (520) is rotatably installed on the top of the translation plate (140), and the transposition gear (520) is engaged with the fixed rack (510). A transposition disk (240) is rotatably installed on the bottom of the translation plate (140), and the transposition disk (240) and the transposition gear (520) are coaxially arranged and fixedly connected. A camera mounting frame (250) is installed on the side of the continuous shooting camera (210), and the camera mounting frame (250) is fixedly installed on the bottom of the translation plate (140). A transposition plate (230) is connected to the side of the transposition disk (240), and the line height camera (220) is installed on the bottom of the transposition plate (230).

9. The device for tracing the quality of gold wire welding of LED lamp beads based on machine vision according to claim 8, characterized in that: A limiting slide groove (260) is provided at the bottom of the translation plate (140), the shifting plate (230) is slidably engaged with the limiting slide groove (260), the limiting slide groove (260) is configured as a 180° arc-shaped slide groove, the limiting slide groove (260) is coaxially arranged with the shifting gear (520), and the end points of the limiting slide groove (260) are not on the symmetry line of the detection platform (120).

10. The device for tracing the quality of LED lamp bead gold wire welding based on machine vision according to claim 8, characterized in that: A pipe bracket (630) is installed on the side wall of the fixed rack (510).

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