Air conditioner frequency converter assembly PCBA board point glue turnover equipment

Abstract

The application discloses a PCBA board dispensing and overturning equipment based on an air conditioner frequency converter, relates to the technical field of PCBA board dispensing and overturning tools, and comprises a protective shell, a control terminal mounted on the protective shell, a mounting base mounted in the protective shell, two first guide rails and two second guide rails mounted on the top surface of the mounting base; the laser identifier is matched with a visual camera to realize automatic planning of a dispensing path; a dispensing valve cooperates with a six-axis mechanical arm to stably supply glue; a glue wiping assembly cleans a valve port, an electronic scale weighs residual glue, and a working procedure state is monitored; a fixed clamp that can slide and rotate protects a hose; through cooperation of a first DC motor, a clamping plate and a rubber soft wheel, eight connecting plate overturning is realized; through linkage of three lead screws, a second DC motor and a third DC motor, different specifications of PCBA boards are adapted; through cooperation of a plurality of limiting assemblies and a fixing assembly, stable large-scale processing is realized; and the problems of low dispensing precision, complicated plate overturning steps and poor linkage effect between procedures are solved.

Description

Technical Field

[0001] This invention relates to the field of PCBA board dispensing and flipping equipment, and in particular to a PCBA board dispensing and flipping device for air conditioner inverter assembly. Background Technology

[0002] In the assembly process of air conditioner inverter PCBA boards, the dispensing process is mainly used to fix and heat dissipate core components such as power modules and capacitors, while the flipping process provides the foundation for the processing of components such as double-sided drive chips and terminals. Both are key processes to ensure the bonding stability, heat dissipation reliability, and double-sided processing integrity of air conditioner inverter components. Especially for the batch processing of multi-panel boards (such as eight-panel boards) commonly seen in air conditioner inverter production, due to the characteristics of air conditioner inverter PCBA boards such as high circuit density, compact core component layout, large differences in board size corresponding to different power models, and stringent requirements for the precision of heat dissipation adhesive dots, higher demands are placed on the automation level, processing accuracy, and compatibility of the equipment. Currently, commonly used air conditioner inverter PCBA board dispensing and flipping equipment in the industry generally suffers from the following technical defects, seriously affecting the assembly quality and production efficiency of air conditioner inverters.

[0003] Firstly, existing equipment mostly relies on manual scanning to identify board models and manual calibration of glue dot positions. This is not only inefficient but also prone to glue dot misalignment due to human error. Some equipment equipped with vision recognition lacks a linkage and limiting structure with the conveyor line, causing the boards to wobble during inspection, further reducing positioning accuracy and affecting subsequent glue dosing quality. Secondly, traditional flipping mechanisms often use clamping or adsorption-based flipping solutions. Excessive clamping force can damage the PCBA board surface circuitry, while insufficient force can lead to board detachment or displacement. Furthermore, the lack of precise limiting and angle detection devices during the flipping process makes it difficult to guarantee a precise 180° flip, requiring manual re-inspection and adjustment, increasing process time. Additionally, the existing equipment's guide rails... The spacing is mostly fixed, only suitable for PCBA boards of a single specification. When dealing with boards of different sizes and quantities, special fixtures must be replaced or the equipment structure adjusted, which is cumbersome and results in long downtime. In addition, the glue supply hoses of the dispensing valves are mostly rigidly fixed, which are prone to bending and wear when the robotic arm moves, shortening their service life. Moreover, if residual glue is not cleaned in time, it will cause valve blockage, affecting the continuity of dispensing. Furthermore, there is a lack of effective connecting and limiting components between dispensing, flipping, and conveying processes. The boards are prone to sliding due to inertia when switching workstations, resulting in processing misalignment. At the same time, the fixing mechanisms of each process are independently controlled, making it impossible to achieve synchronous start and stop, which makes it difficult to form large-scale continuous processing and limits production efficiency. Therefore, the above problems need to be solved. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and propose a dispensing and flipping device for PCBA boards used in air conditioner inverter assembly.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a dispensing and flipping device for PCBA boards used in air conditioner inverter assembly, comprising a protective shell, a control terminal mounted on the protective shell, a mounting base mounted inside the protective shell, two first guide rails and two second guide rails mounted on the top surface of the mounting base, wherein a bracket and a transmission box are respectively mounted on the top surface of the mounting base, the bracket and the transmission box are located on both sides of the first guide rails, and a vision mechanism for visual imaging is mounted on the bracket; an adjustment mechanism for adjusting the distance between the two first guide rails and the two second guide rails is mounted inside the transmission box and on one side of the second guide rails. A flipping mechanism is installed between the first guide rail and the second guide rail. A dispensing mechanism is installed on the top surface of the mounting base. The dispensing mechanism is located on one side of the transmission box. Multiple sets of drive components that cooperate with the vision mechanism, the dispensing mechanism, and the flipping mechanism are installed on the first guide rail and the second guide rail. A first limiting component is installed between the vision mechanism and the dispensing mechanism, and between the dispensing mechanism and the flipping mechanism. A second limiting component is also installed between the dispensing mechanism and the flipping mechanism. A third limiting component is installed at the center of the flipping mechanism. A first fixing component and a second fixing component are installed on the first guide rail and the second guide rail, respectively.

[0006] Preferably, the vision mechanism includes a laser recognizer mounted in the middle of the support via a support plate, and a support frame is mounted on the top of the support, on which a vision camera is mounted, with the focus of the vision camera located on an eight-panel directly below.

[0007] Preferably, the flipping mechanism includes a first DC motor mounted on one side of the first guide rail, a rotating shaft rotatably connected to the lower end of the first guide rail, and two opposing clamping plates rotatably connected to the inner side of the first guide rail. Both ends of the two clamping plate rotating shafts and the rotating shaft are fixedly connected to first toothed pulleys. A first toothed belt is sleeved on the outer side of the upper and lower first toothed pulleys. A first tensioning wheel is provided on one side of the first toothed belt. The first tensioning wheel is rotatably connected to the inner side of the first guide rail, and the output end of the first DC motor is connected to one of the clamping plate rotating shafts through a coupling.

[0008] Preferably, the clamping plate has rectangular slots on both sides, the length of which is half the length of the eight-piece plate, and multiple rubber soft wheels are installed in the slots. A positioning detector is installed on the mounting base via a mounting block, and a positioning block that cooperates with the positioning detector is fixed to one side of the clamping plate.

[0009] Preferably, the dispensing mechanism includes a six-axis robotic arm mounted on the top surface of the mounting base, a glue tank, a glue supply control box, and a linear motor. The linear motor is equipped with a glue wiping assembly, the six-axis robotic arm is equipped with a protective assembly, and the output end of the six-axis robotic arm is equipped with a dispensing valve.

[0010] Preferably, the protection assembly includes a guide plate mounted on a six-axis robotic arm, a sliding base slidably connected to the guide plate, a fixing clamp rotatably connected to the sliding base, a pressure outlet at the lower end of the glue tank, a glue inlet pipe connected to the dispensing valve, and a flexible hose installed on the pressure outlet, the other end of the flexible hose passing through the fixing clamp and connected to the glue inlet pipe. The glue wiping assembly includes a sliding base plate mounted on a linear motor, and a glue wiper, a cup holder, and an electronic scale are respectively mounted on the sliding base plate.

[0011] Preferably, the first fixing component includes a slide rail and a mounting plate installed on one side of the first guide rail. A first cylinder is installed on the mounting plate, and a pressure plate is installed at the output end of the first cylinder. Guide blocks are fixedly connected to both sides of the bottom surface of the pressure plate. The guide blocks are slidably connected to the slide rail, and multiple pressure blocks are fixedly connected to the pressure plate at equal intervals. The second fixing component includes a second cylinder installed on the top surface of the second guide rail, and a clamping block is installed at the output end of the second cylinder.

[0012] Preferably, the adjustment mechanism includes two lead screws rotatably connected to one side of the first guide rail, one lead screw rotatably connected to one side of the second guide rail, a second DC motor and a third DC motor mounted on the top surface of the mounting base. The output ends of the second DC motor and the third DC motor are respectively connected to one end of the lead screw via couplings. The first guide rail and the second guide rail are threadedly connected to the lead screw on one side. A second toothed pulley is fixed to one end of the two lead screws on the first guide rail. A second toothed belt is sleeved on the outer side of the two second toothed pulleys. A second tensioning wheel that cooperates with the second toothed belt is rotatably connected to the top surface of the mounting base via a mounting plate.

[0013] Preferably, the second limiting component includes a first slider slidably connected to one side of the second guide rail, a pneumatic rotary valve is installed on the upper end of the first slider, and two L-shaped first stop rods are coaxially connected to the output end of the pneumatic rotary valve; the third limiting component includes a second slider slidably connected inside the mounting base, a fourth DC motor is installed on the upper end of the second slider, and two second stop rods are coaxially connected to the output end of the fourth DC motor; the first limiting component includes a third cylinder installed inside the mounting base, a baffle is installed on the output end of the third cylinder, and guide rods are provided on both sides of the piston rod of the third cylinder, one end of the guide rod is fixedly connected to the bottom surface of the baffle, and the other end of the guide rod is inserted into both sides of the third cylinder.

[0014] Preferably, the drive assembly includes a plurality of rollers rotatably connected to one side of the first guide rail and the second guide rail, a third tensioning wheel, and a fifth DC motor mounted on the other side of the first guide rail and the second guide rail. A conveyor belt is sleeved on the outer side of the plurality of rollers, and the output end of the fifth DC motor is connected to the shaft of one of the rollers via a coupling.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This invention, through the cooperation of a laser scanner and a vision camera, facilitates the scanning of QR codes on an eight-panel board to determine the board's model, while providing precise positional support for subsequent dispensing processes. This improves the accuracy of dispensing by the six-axis robotic arm and enables automatic dispensing path planning. The cooperation of the dispensing valve, six-axis robotic arm, glue tank, and glue supply control box 19 ensures a stable and continuous glue supply to the dispensing valve. Furthermore, the cooperation of an electronic scale and a glue wiping assembly facilitates cleaning of the dispensing valve's output end and periodically weighs the removed residual glue to determine if the dispensing process is functioning correctly. Finally, the sliding and rotating clamp allows the hose to slide and rotate accordingly as the six-axis robotic arm moves, preventing damage caused by squeezing the hose against the clamp and extending its lifespan.

[0017] 2. This invention facilitates the flipping of the eight-panel PCBA board through the cooperation of a first DC motor, clamping plate, and rubber soft wheels. Simultaneously, the rubber soft wheels prevent damage to the eight-panel PCBA board during flipping, thus achieving a quick flipping function. Furthermore, the cooperation of three lead screws, a second DC motor, and a third DC motor facilitates the movement of the first and second guide rails and clamping plate on one side to the other side, thereby adjusting the distance between the first and second guide rails and clamping plates on both sides, improving the applicability to PCBA boards, and achieving the function of preventing board jamming during parallel guide rail movement.

[0018] 3. The present invention, through the cooperation of the first limiting component, the second limiting component, the third limiting component, the first fixing component and the second fixing component, can fix and limit the PCBA boards at each workstation, avoid the accuracy problems caused by the movement of PCBA boards during processing, improve the processing accuracy, and thus realize the large-scale processing efficiency of dispensing and flipping PCBA boards used in the assembly of air conditioner inverters. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall appearance and structure of the device of the present invention;

[0021] Figure 2 This is a rear view schematic diagram of the overall appearance and structure of the device of the present invention;

[0022] Figure 3 This is a schematic diagram of the internal structure of the device of the present invention;

[0023] Figure 4 This is a rear view of the internal structure of the device of the present invention;

[0024] Figure 5 This is a schematic diagram of the dispensing mechanism of the present invention;

[0025] Figure 6 This is a schematic diagram of the first and second guide rail structures of the present invention;

[0026] Figure 7 This is a top view of the first and second guide rail structures of the present invention;

[0027] Figure 8 This is a schematic diagram of the adjustment mechanism structure of the present invention;

[0028] Figure 9 This is a schematic diagram of the flip-plate mechanism of the present invention;

[0029] Figure 10 This is a schematic diagram of the visual mechanism structure of the present invention;

[0030] Figure 11 This is a schematic diagram of the first fixing component structure of the present invention;

[0031] Figure 12 This is a schematic diagram of the six-axis robotic arm structure of the present invention;

[0032] Figure 13 This is a schematic diagram of the glue bucket structure of the present invention;

[0033] Figure 14 This is a schematic diagram of the dispensing valve structure of the present invention;

[0034] Figure 15 This is a schematic diagram of the first limiting component structure of the present invention;

[0035] Figure 16 This is a schematic diagram of the second limiting component structure of the present invention;

[0036] Figure 17 This is a schematic diagram of the third limiting component structure of the present invention;

[0037] Figure 18 This is a schematic diagram of the protective component structure of the present invention;

[0038] Figure 19 This is a schematic diagram of the second fixing component structure of the present invention;

[0039] Figure 20 This is a schematic diagram of the adhesive application assembly structure of the present invention;

[0040] Figure 21 This is a schematic diagram of the internal structure of the flip-plate mechanism of the present invention;

[0041] Figure 22 This is a top view of the internal structure of the flip-plate mechanism of the present invention;

[0042] Figure 23 For the present invention Figure 6 Enlarged schematic diagram of the structure at part A in the middle;

[0043] Figure 24 For the present invention Figure 22 Enlarged schematic diagram of the structure in part B.

[0044] In the diagram, the components are numbered as follows: 1. Protective shell; 2. Mounting base; 3. First guide rail; 4. Second guide rail; 5. Transmission box; 6. Bracket; 7. Laser identifier; 8. Support frame; 9. Vision camera; 10. First DC motor; 11. Clamping plate; 12. Rotating shaft; 13. First toothed belt; 14. First tensioning pulley; 15. Rubber flexible wheel; 16. Positioning detector; 17. Six-axis robotic arm; 18. Glue bucket; 19. Glue supply control box; 20. Linear motor; 21. Dispensing valve; 22. Guide plate; 23. Sliding base; 24. Fixing clamp; 25. Pressurized outlet; 26. Glue inlet tube; 27. Glue wiping device. 28. Sliding base plate; 29. ​​Cup holder; 30. First cylinder; 31. Pressure plate; 32. Pressure block; 33. Guide block; 34. Second DC motor; 35. Third DC motor; 36. Lead screw; 37. Second toothed belt; 38. Second tensioning wheel; 39. Second cylinder; 40. Clamping block; 41. Third cylinder; 42. Baffle; 43. First slider; 44. Pneumatic rotary valve; 45. First stop bar; 46. Second slider; 47. Fourth DC motor; 48. Second stop bar; 49. Fifth DC motor; 50. Roller; 51. Third tensioning wheel; 52. Conveyor belt; 53. Electronic scale. Detailed Implementation

[0045] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0046] Example 1: See Figures 1 to 24This invention discloses a dispensing and flipping device for PCBA boards used in air conditioner inverter assembly, comprising a protective shell 1, a control terminal mounted on the protective shell 1, a mounting base 2 mounted inside the protective shell 1, two first guide rails 3 and two second guide rails 4 mounted on the top surface of the mounting base 2, and brackets 6 and transmission boxes 5 respectively mounted on the top surface of the mounting base 2. The brackets 6 facilitate support for a laser identifier 7 and a vision camera 9, and allow adjustment of the height of the laser identifier 7 and the vision camera 9 according to positioning requirements. The brackets 6 and transmission boxes 5 are located on both sides of the first guide rails 3, and a vision mechanism for visual imaging is mounted on the brackets 6. The vision mechanism guides the initial entry of the eight-panel board into the first guide rail. The guide rail 3 scans the QR code on the eight-piece plate to identify its model. Simultaneously, it continuously photographs the eight-piece plate and transmits the data back to the control terminal for analysis. The control terminal then uses this information to drive the dispensing mechanism for dispensing. Inside the transmission box 5, on one side of the second guide rail 4, is an adjustment mechanism for adjusting the distance between the two first guide rails 3 and the two second guide rails 4. This mechanism adjusts the distance between the two first guide rails 3 and the two second guide rails 4 to prevent damage to the eight-piece plate from being too small, or to prevent the eight-piece plate from being transported if the distance is too large. A flipping mechanism is installed between the first guide rails 3 and the second guide rails 4, allowing the eight-piece plate to be flipped 180 degrees. This facilitates subsequent PCBA board processing. A dispensing mechanism is installed on the top surface of the mounting base 2, dispensing adhesive onto each sub-board of the eight-panel assembly. The dispensing mechanism is located on one side of the transmission box 5, and multiple sets of drive components are installed on the first guide rail 3 and the second guide rail 4, respectively cooperating with the vision mechanism, dispensing mechanism, and flipping mechanism. These drive components facilitate the movement of the eight-panel assembly on the first guide rail 3, clamping plate 11, and second guide rail 4. First limiting components are installed between the vision mechanism and the dispensing mechanism, and between the dispensing mechanism and the flipping mechanism. These first, second, and third limiting components can limit the movement of the eight-panel assembly after it reaches a designated position, preventing misalignment during dispensing and flipping. During the board-making process, external factors can cause the eight-panel board to shake, affecting the processing accuracy. A second limiting component is installed between the dispensing mechanism and the flipping mechanism, and a third limiting component is installed at the center of the flipping mechanism. A first fixing component and a second fixing component are respectively installed on the first guide rail 3 and the second guide rail 4. The eight-panel board can be positioned in a designated position through the first fixing component and the second fixing component. The vision mechanism includes a laser reader 7 installed in the middle of the bracket 6 through a support plate. The laser reader 7 facilitates the scanning of the QR code on the eight-panel board. A support frame 8 is installed at the top of the bracket 6. The support frame 8 facilitates the installation of the vision camera 9 and leaves space for the subsequent installation of other components.A vision camera 9 is installed on the support frame 8. The vision camera 9 takes pictures from top to bottom to determine the position where glue needs to be applied to the eight-panel structure. The pictures are transmitted back to the control terminal. The control terminal compares the pictures to determine the glue application position and then transmits electrical signals to the six-axis robotic arm 17. The six-axis robotic arm 17 then moves the glue dispensing valve 21 to perform glue dispensing. The focus of the vision camera 9 is located on the eight-panel structure directly below. The flipping mechanism includes a first DC motor 10 installed on one side of the first guide rail 3, a rotating shaft 12 rotatably connected to the lower end of the first guide rail 3, and two opposing clamping plates 11 rotatably connected to the inner side of the first guide rail 3. The first DC motor 10 drives the clamping plate 11 on one side to rotate. At the same time, the first toothed belt 13, the first toothed pulley, and the first tensioning wheel 14 drive the rotating shaft 12 to rotate. Then, the first toothed belt 13 and the first toothed pulley on the other side drive the two clamping plates 11 on both sides to rotate synchronously, thereby flipping the eight-panel structure. The two clamping plates 11 and the two ends of the rotating shaft 12 are fixedly connected to the first toothed pulleys. A first toothed belt 13 is sleeved on the outer side of the toothed pulley. A first tensioning pulley 14 is provided on one side of the first toothed belt 13. The first tensioning pulley 14 is rotatably connected to the inner side of the first guide rail 3. The output end of the first DC motor 10 is connected to the shaft of one of the clamping plates 11 through a coupling. The clamping plates 11 have rectangular slots on both sides, which facilitate the rotatable connection of rubber flexible wheels 15. At the same time, the height of the slots is the same as the height of the conveyor belt 52, which facilitates the eight-piece plate to enter the flipping position from the dispensing position. The length of the slots is half the length of the eight-piece plate. The eight-piece plate is in the drive group Driven by the component, half of the plate enters the flipping mechanism. Then, the drive motor stops, and simultaneously, the second and third limit components activate to limit the eight-plate connection, preventing subsequent plate slippage due to inertia and subsequent flipping failure. Multiple rubber wheels 15 are installed vertically within the slot, and a positioning detector 16 is mounted on the mounting base 2 via a mounting block. The positioning detector 16, in conjunction with the positioning block, determines whether the flipping mechanism has rotated 180 degrees. A positioning block, cooperating with the positioning detector 16, is fixedly connected to one side of the clamping plate 11.

[0047] Example 2: The technical solution is basically the same as that of Example 1, except that, as Figure 12 , Figure 13 , Figure 14As shown, the dispensing mechanism includes a six-axis robotic arm 17 mounted on the top surface of the mounting base 2, a glue tank 18, a glue supply control box 19, and a linear motor 20. The six-axis robotic arm 17 can drive the dispensing valve 21 to move in multiple directions, thereby driving the dispensing valve 21 to dispense glue precisely. A glue wiping component is installed on the linear motor 20, which can remove residual glue on the output end of the dispensing valve 21 when dispensing is paused, preventing the glue from solidifying and subsequent dispensing failures. A protective component is installed on the six-axis robotic arm 17, which allows the hose to rotate when the six-axis robotic arm 17 moves, reducing friction on the hose and improving its service life. Furthermore, the six-axis robotic arm 17... A dispensing valve 21 is installed at the outlet. The protective components include a guide plate 22 mounted on the six-axis robotic arm 17. The guide plate 22 allows the sliding base 23 to change position as the six-axis robotic arm 17 rotates and the hose position changes. The sliding base 23 is slidably connected to the guide plate 22, and a fixing clamp 24 is rotatably connected to the sliding base 23. The fixing clamp 24 differs from traditional fixing methods, allowing the hose to rotate and tilt, reducing the squeezing, friction, and bending at the contact point between the fixing clamp 24 and the hose, greatly extending the service life of the hose. A pressure outlet 25 is opened at the lower end of the glue tank 18, and a glue inlet pipe 26 is connected to the dispensing valve 21. A flexible hose is installed on the 5th, with the other end of the hose passing through the fixing clamp 24 and connecting to the glue inlet pipe 26. The glue-wiping assembly includes a sliding base plate 28 mounted on the linear motor 20. A glue wiper 27, a cup holder 29, and an electronic scale 53 are respectively mounted on the sliding base plate 28. The electronic scale 53 can periodically weigh the cup storing residual glue to determine whether the glue dispensing is normal during that period. The first fixing assembly includes a slide rail and a mounting plate mounted on one side of the first guide rail 3. A first cylinder 30 is mounted on the mounting plate. The first cylinder 30 facilitates the lifting and lowering of the pressure plate 31, thereby driving the pressure block 32 to press down on the periphery of the eight-panel joint. After the drive assembly stops operating, the eight-panel joint is... Fixed at this location to increase the stability of the eight-panel assembly during dispensing; a pressure plate 31 is installed at the output end of the first cylinder 30, and guide blocks 33 are fixedly connected to both sides of the bottom surface of the pressure plate 31. Through the guiding action of the guide blocks 33, the influence of lateral torque on the piston rod of the first cylinder 30 is reduced, and the piston rod is prevented from malfunctioning; the guide blocks 33 are slidably connected to the slide rail, and multiple pressure blocks 32 are fixedly connected at equal intervals on the pressure plate 31. The second fixing component includes a second cylinder 39 installed on the top surface of the second guide rail 4. The second cylinder 39 facilitates pushing the clamping block 40 to move inward, clamping and fixing the eight-panel assembly after flipping, and preventing the eight-panel assembly from moving before the drive component is started at this position;The output end of the second cylinder 39 is equipped with a clamping block 40. The adjustment mechanism includes two lead screws 36 rotatably connected to one side of the first guide rail 3, one lead screw 36 rotatably connected to one side of the second guide rail 4, a second DC motor 34 and a third DC motor 35 mounted on the top surface of the mounting base 2. By rotating the three lead screws 36, the first guide rail 3 and the second guide rail 4, which are threaded to them, are moved to the other side, thereby adjusting the distance between them. At the same time, since one side of the flipping mechanism is close to one end of the second guide rail 4, the clamping plate 11 will also move synchronously when the first guide rail 3 and the second guide rail 4 move. This avoids the impact of different spacing between the flipping mechanism and the two sides on the transmission of the eight-panel connection; the output ends of the second DC motor 34 and the third DC motor 35 are respectively connected to one end of the lead screw 36 through couplings, and one side of the first guide rail 3 and the second guide rail 4 are threadedly connected to the lead screw 36. A second toothed pulley is fixed to one end of each of the two lead screws 36 on the first guide rail 3, and a second toothed belt 37 is sleeved on the outer side of each of the two second toothed pulleys. A second tensioning wheel 38, which mates with the second toothed belt 37, is rotatably connected to the top surface of the mounting base 2 through a mounting plate. The two lead screws 36 on the first guide rail 3 are driven to rotate synchronously through the second toothed pulley, the second toothed belt 37, and the second tensioning wheel 38.

[0048] Example 3: The technical solution is basically the same as that of Example 1, except that, as Figure 15 , Figure 16 , Figure 17As shown, the second limiting component includes a first slider 43 slidably connected to one side of the second guide rail 4. The position of the output end of the pneumatic rotary valve 44 can be adjusted according to the processing and the size of the eight-piece plate. The pneumatic rotary valve 44 is installed on the upper end of the first slider 43. The pneumatic rotary valve 44 facilitates the rotation of the first stop rod 45, thereby separating the eight-piece plate being dispensed from the eight-piece plate being folded, preventing them from contacting or shifting. Two L-shaped first stop rods 45 are coaxially connected to the output end of the pneumatic rotary valve 44. The third limiting component includes a second slider 46 slidably connected inside the mounting base 2. The position of the output end of the fourth DC motor 47 can be changed by the second slider 46. The fourth DC motor 47 is installed on the upper end of the second slider 46. The fourth DC motor 47 facilitates the rotation of the second stop rod 48. The second stop rod 48 is located directly below the eight-piece plate to be folded. When the second stop rod 48 is activated, the folding mechanism cannot rotate, preventing the clamping plate 11 from folding the eight-piece plate due to inertia. When the output end of the fourth DC motor 47 is activated, the position of the folding mechanism cannot be adjusted according to the processing and the size of the eight-piece plate. Two second stop rods 48 are coaxially connected. The first limiting assembly includes a third cylinder 41 installed inside the mounting base 2. The position of the baffle 42 can be changed by the third cylinder 41. The baffle 42 is installed at the output end of the third cylinder 41. The baffle 42 can be raised when different eight-piece plates reach different workstations to avoid contact between adjacent eight-piece plates during processing at each workstation. Guide rods are provided on both sides of the piston rod of the third cylinder 41. One end of the guide rod is fixed to the bottom surface of the baffle 42, and the other end of the guide rod is inserted into the second stop rod. On both sides of the three cylinders 41, the drive assembly includes multiple rollers 50 rotatably connected to one side of the first guide rail 3 and the second guide rail 4, a third tensioning roller 51, and a fifth DC motor 49 installed on the other side of the first guide rail 3 and the second guide rail 4. The rollers 50, the third tensioning roller 51, and the fifth DC motor 49 facilitate the operation of the conveyor belt 52, thereby providing support for the transmission of the device. The conveyor belt 52 is sleeved on the outside of the multiple rollers 50, and the output end of the fifth DC motor 49 is connected to the shaft of one of the rollers 50 through a coupling.

[0049] Working principle: In this embodiment, the present invention also proposes a method for using a dispensing and flipping device for PCBA boards used in air conditioner inverter assembly, including the following steps:

[0050] Step 1: First, check whether the glue level in the glue tank 18 is sufficient. After ensuring that there are no abnormalities in any part of the equipment, turn on the power. Place the eight-piece plate to be processed at the starting end of the first guide rail 3. The control terminal drives the drive component on the first guide rail 3 to operate. The fifth DC motor 49 drives the roller 50 to rotate. Through the conveyor belt 52 sleeved on the outside of the roller 50, the eight-piece plate moves smoothly along the first guide rail 3 towards the vision mechanism, and the processing flow is started.

[0051] Step two: When the eight-piece plate moves to below the vision mechanism (corresponding area of ​​bracket 6), the third cylinder 41 in the first limiting component is activated, pushing the baffle 42 upward to block and limit the eight-piece plate, preventing it from moving further. At this time, the laser reader 7 installed on the middle support plate of bracket 6 scans the QR code on the eight-piece plate, identifies the model of the eight-piece plate, and transmits the information to the control terminal. Simultaneously, the vision camera 9 on the top support frame 8 of bracket 6 (focusing on the eight-piece plate below) takes a picture of the eight-piece plate and sends the image data to the control terminal. The control terminal determines the dispensing position of each plate through image analysis. After identification, the third cylinder 41 drives the baffle 42 downward, and the drive component continues to move the eight-piece plate into the dispensing area. At the same time, the next eight-piece plate enters the laser scanning area simultaneously, and the third cylinder 41 drives the baffle 42 upward again, realizing the isolation of the workstations of adjacent eight-piece plates and preventing subsequent eight-piece plates from interfering with the processing preparation of the front eight-piece plate.

[0052] Step 3: After the eight-piece plate enters the dispensing area, the first fixing component is activated—the first cylinder 30 on the mounting plate on one side of the first guide rail 3 pushes the pressure plate 31 down. The bottom surface of the pressure plate 31 slides smoothly along the slide rail through the guide block 33 (reducing the influence of lateral torque on the piston rod of the first cylinder 30). Finally, the eight-piece plate is pressed and fixed around its perimeter by multiple pressure blocks 32 fixed at equal intervals on the pressure plate 31. At this time, the drive component in this area stops operating to avoid damage to the bottom surface of the eight-piece plate due to friction. The control terminal drives the dispensing mechanism (installed on the top surface of the mounting base 2 and on one side of the transmission box 5) to work according to the dispensing position fed back by the vision mechanism: the six-axis robotic arm 17 drives the dispensing valve 21 to move, and the glue supply control box 19 controls the glue tank 18 to pass through the pressurized outlet 25. The hose and glue inlet tube 26 supply glue to the dispensing valve 21. Driven by the six-axis robotic arm 17, the dispensing valve 21 precisely dispenses glue to each sub-board on the eight-panel board. If the dispensing process needs to be paused, the linear motor 20 drives the glue wiping components (sliding base plate 28, glue wiper 27, cup holder 29, and electronic scale 53) mounted on it to move below the dispensing valve 21. The glue wiper 27 cleans the residual glue, the container in the cup holder 29 collects the residual glue, and the electronic scale 53 weighs the glue periodically to monitor the dispensing status. During this process, the protective components (guide plate 22, sliding base 23, and fixing clamp 24) on the six-axis robotic arm 17 can move with the six-axis robotic arm 17 to make the hose slide or rotate, reducing the friction between the two and extending the service life of the hose.

[0053] Step four: After dispensing, the first cylinder 30 of the first fixing component drives the pressure plate 31 to rise and reset, and the drive component starts again, driving the eight-panel structure to move towards the flipping mechanism (between the first guide rail 3 and the second guide rail 4); when half of the eight-panel structure enters the slot of the clamping plate 11 of the flipping mechanism (the slot length is half the length of the eight-panel structure, and the slot height is consistent with the height of the conveyor belt 52), the second limiting component is activated: the pneumatic rotary valve 44 at the upper end of the first slider 43 slidably connected to one side of the second guide rail 4 drives the two L-shaped first stop rods 45 to rotate to the rear of the eight-panel structure for limiting; at the same time, the third limiting component is activated: the fourth DC motor 47 at the upper end of the second slider 46 slidably connected inside the mounting base 2 drives the two second The stop lever 48 rotates to the bottom of the eight-plate joint for support and limitation, preventing the eight-plate joint from sliding due to inertia and causing the flipping mechanism to fail. Then the flipping mechanism is activated: the first DC motor 10 on one side of the first guide rail 3 drives the rotating shaft of one of the clamping plates 11 to rotate through the coupling. With the transmission of the first toothed pulleys fixed at both ends of the rotating shaft 12 and the first toothed belt 13 sleeved on the outside, and the first tensioning wheel 14 on one side of the first toothed belt 13, the rotating shaft 12 and the other clamping plate 11 are driven to rotate synchronously, realizing the 180-degree flipping of the eight-plate joint. During the flipping process, the positioning detector 16 mounted on the mounting base 2 through the mounting block detects the positioning block on one side of the clamping plate 11 to determine whether the flipping mechanism has rotated to the correct position (180 degrees).

[0054] Step 5: After the flip plate is in place, the fourth DC motor 47 of the third limiting component drives the second stop 48 to reset, and the pneumatic rotary valve 44 of the second limiting component drives the first stop 45 to reset. The drive component drives the flipped eight-piece plate to move onto the second guide rail 4. At this time, the second fixing component is activated: the second cylinder 39 on the top surface of the second guide rail 4 pushes the clamping block 40 to move inward, clamping and fixing the flipped eight-piece plate to ensure smooth subsequent conveying. Then the drive component is activated again, driving the eight-piece plate to be output smoothly along the second guide rail 4, completing the entire dispensing and flipping processing process. If different models of eight-piece plates need to be processed, the distance between the two first guide rails 3 and the two second guide rails 4 can be adjusted by adjusting the mechanism (the second DC motor 34, the third DC motor 35, the lead screw 36, the second toothed pulley, the second toothed belt 37, and the second tensioning wheel 38 inside the transmission box 5 and on one side of the second guide rail 4) to adapt to the processing requirements of eight-piece plates of different sizes.

[0055] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A dispensing and flipping device for PCBA boards used in air conditioner inverter assembly, comprising a protective shell (1), a control terminal mounted on the protective shell (1), a mounting base (2) mounted inside the protective shell (1), two first guide rails (3) and two second guide rails (4) mounted on the top surface of the mounting base (2), characterized in that: The mounting base (2) is equipped with a bracket (6) and a transmission box (5) on its top surface. The bracket (6) and the transmission box (5) are located on both sides of the first guide rail (3). A vision mechanism for visual imaging is installed on the bracket (6). An adjustment mechanism for adjusting the distance between the two first guide rails (3) and the two second guide rails (4) is installed inside the transmission box (5) and on one side of the second guide rail (4). A flipping mechanism is installed between the first guide rail (3) and the second guide rail (4). A dispensing mechanism is installed on the top surface of the mounting base (2). Multiple sets of drive components that cooperate with the vision mechanism, the dispensing mechanism and the flipping mechanism are installed on the first guide rail (3) and the second guide rail (4). A first limiting component is installed between the vision mechanism and the dispensing mechanism, and between the dispensing mechanism and the flipping mechanism. A second limiting component is also installed between the dispensing mechanism and the flipping mechanism. A third limiting component is installed at the center of the flipping mechanism. A first fixing component and a second fixing component are installed on the first guide rail (3) and the second guide rail (4). The flipping mechanism includes a first DC motor (10) installed on one side of the first guide rail (3), a rotating shaft (12) rotatably connected to the lower end of the first guide rail (3), and two opposing clamping plates (11) rotatably connected to the inner side of the first guide rail (3). The two clamping plates (11) and the rotating shaft (12) are both fixedly connected to the two ends of the shaft. The upper and lower first toothed pulleys are fitted with a first toothed belt (13). A first tensioning wheel (14) is provided on one side of the first toothed belt (13). The first tensioning wheel (14) is rotatably connected to the inner side of the first guide rail (3), and the output end of the first DC motor (10) is connected to the shaft of one of the clamping plates (11) through a coupling. The first fixing component includes a slide rail and a mounting plate mounted on one side of the first guide rail (3); The adjustment mechanism includes two lead screws (36) rotatably connected to one side of the first guide rail (3), one lead screw (36) rotatably connected to one side of the second guide rail (4), a second DC motor (34) and a third DC motor (35) mounted on the top surface of the mounting base (2). The output ends of the second DC motor (34) and the third DC motor (35) are respectively connected to one end of the lead screw (36) through couplings. The first guide rail (3) and the second guide rail (4) are threadedly connected to the lead screw (36) on one side. The two lead screws (36) on the first guide rail (3) are fixedly connected to one end of the second toothed pulley. The two second toothed pulleys are fitted with a second toothed belt (37) on the outside. The top surface of the mounting base (2) is rotatably connected to a second tensioning wheel (38) that matches the second toothed belt (37) through a mounting plate. The second limiting component includes a first slider (43) slidably connected to one side of the second guide rail (4), a pneumatic rotary valve (44) is installed on the upper end of the first slider (43), and two L-shaped first stop rods (45) are coaxially connected to the output end of the pneumatic rotary valve (44); the third limiting component includes a second slider (46) slidably connected inside the mounting base (2), a fourth DC motor (47) is installed on the upper end of the second slider (46), and two second stop rods (48) are coaxially connected to the output end of the fourth DC motor (47); the first limiting component includes a third cylinder (41) installed inside the mounting base (2), a baffle (42) is installed on the output end of the third cylinder (41), and guide rods are provided on both sides of the piston rod of the third cylinder (41). One end of the guide rod is fixed to the bottom surface of the baffle (42), and the other end of the guide rod is inserted into both sides of the third cylinder (41).

2. The dispensing and flipping equipment for PCBA boards used in air conditioner inverter assembly according to claim 1, characterized in that: The vision mechanism includes a laser recognition device (7) mounted in the middle of a support (6) via a support plate, and a support frame (8) is mounted on the top of the support (6), on which a vision camera (9) is mounted, with the focus of the vision camera (9) located on an eight-panel directly below.

3. The dispensing and flipping equipment for PCBA boards used in air conditioner inverter assembly according to claim 2, characterized in that: The clamping plate (11) has rectangular slots on both sides. The length of the slots is half the length of the eight-piece plate. Multiple rubber soft wheels (15) are installed in the slots. A positioning detector (16) is installed on the mounting base (2) via a mounting block. A positioning block that cooperates with the positioning detector (16) is fixed to one side of the clamping plate (11).

4. The dispensing and flipping equipment for PCBA boards used in air conditioner inverter assembly according to claim 1, characterized in that: The dispensing mechanism includes a six-axis robotic arm (17), a glue tank (18), a glue supply control box (19), and a linear motor (20) mounted on the top surface of the mounting base (2). The linear motor (20) is equipped with a glue wiping component, the six-axis robotic arm (17) is equipped with a protection component, and the output end of the six-axis robotic arm (17) is equipped with a dispensing valve (21).

5. The dispensing and flipping equipment for PCBA boards used in air conditioner inverter assembly according to claim 4, characterized in that: The protective assembly includes a guide plate (22) mounted on a six-axis robotic arm (17), a sliding base (23) slidably connected to the guide plate (22), a fixing clamp (24) rotatably connected to the sliding base (23), a pressure outlet (25) opened at the lower end of the glue tank (18), a glue inlet pipe (26) connected to the glue dispensing valve (21), and a hose installed on the pressure outlet (25). The other end of the hose passes through the fixing clamp (24) and connects to the glue inlet pipe (26). The glue wiping assembly includes a sliding base plate (28) mounted on a linear motor (20), and a glue wiper (27), a cup holder (29) and an electronic scale (53) are respectively mounted on the sliding base plate (28).

6. The dispensing and flipping equipment for PCBA boards used in air conditioner inverter assembly according to claim 4, characterized in that: The mounting plate is equipped with a first cylinder (30), and the output end of the first cylinder (30) is equipped with a pressure plate (31). Guide blocks (33) are fixedly connected to both sides of the bottom surface of the pressure plate (31). The guide blocks (33) are slidably connected to the slide rail, and multiple pressure blocks (32) are fixedly connected at equal intervals on the pressure plate (31). The second fixing component includes a second cylinder (39) that is mounted on the top surface of the second guide rail (4). The output end of the second cylinder (39) is equipped with a clamping block (40).

7. The dispensing and flipping equipment for PCBA boards used in air conditioner inverter assembly according to claim 1, characterized in that: The drive assembly includes a plurality of rollers (50) rotatably connected to one side of the first guide rail (3) and the second guide rail (4), a third tensioning roller (51), and a fifth DC motor (49) mounted on the other side of the first guide rail (3) and the second guide rail (4). A conveyor belt (52) is sleeved on the outside of the plurality of rollers (50), and the output end of the fifth DC motor (49) is connected to the shaft of one of the rollers (50) through a coupling.

Images