Rotary table type spray welding machine integrating AOI and automatic material transfer

Abstract

The present application relates to soldering machine technical field, especially to a kind of integrated AOI and automatic material transfer's carousel type spray soldering machine, including rack and first carousel rotatable in rack;And be used for the feeding station of feeding PCB in rack, be used for the spray station of spraying flux to PCB in rack, be used for the spray welding station of spray welding to PCB in rack, be used for the AOI detection station of detecting PCB in rack and be used for the unloading station of unloading PCB in rack, feeding station, spray station, spray welding station, AOI detection station and unloading station are set to first carousel outer side and sequentially interval setting along the counterclockwise rotation direction of first carousel;Compared with prior art, the time required for PCB to be stopped, moved out, handled and repositioned between each station is shortened, thereby realizing the quick connection between each station, so that the total utilization rate and unit between integrated AOI and automatic material transfer's carousel type spray soldering machine can be further improved.

Description

Technical Field

[0001] This invention relates to the field of soldering machine technology, and in particular to a rotary spray soldering machine that integrates AOI and automatic material transfer. Background Technology

[0002] In the relevant technical field, after components are inserted during the PCB board manufacturing process, they need to be soldered. The traditional processing method is to manually insert components and solder them manually. With the development of technology, processing methods with automated machine soldering have emerged.

[0003] In existing technologies, automated PCB soldering devices typically include a spraying mechanism, a soldering mechanism, and a clamping mechanism. The spraying and soldering mechanisms are spaced apart on the same straight line. The clamping mechanism holds the PCB and sequentially moves it to the spraying mechanism for flux spraying and then to the soldering mechanism for soldering. However, this method requires stopping, removing, transporting, and repositioning, resulting in significant time wastage due to the physical intervals between processes, severely limiting the production efficiency of the soldering equipment. Furthermore, the clamping mechanism is prone to misalignment during transport, leading to deviations in the soldering positions of subsequent PCBs, resulting in unreliable soldering and low yield rates.

[0004] Therefore, a new technical solution needs to be researched to address the above problems. Summary of the Invention

[0005] In view of this, the present invention addresses the deficiencies of the prior art by providing a rotary spray welding machine that integrates AOI and automatic material transfer, effectively solving the technical defects of low welding efficiency and low welding yield in the existing automatic welding devices for PCB boards.

[0006] This invention provides a rotary spray welding machine that integrates AOI and automatic material transfer, including a frame and a first rotary table rotatably mounted on the frame; It also includes a loading station for loading PCB boards, a spraying station for spraying flux onto PCB boards, a spraying station for spraying solder onto PCB boards, an AOI inspection station for inspecting PCB boards, and a loading station for unloading PCB boards. The loading station, spraying station, spraying station, AOI inspection station, and unloading station are located outside the first turntable and are arranged at intervals along the counterclockwise rotation direction of the first turntable. The first turntable is detachably equipped with multiple support fixtures for carrying PCB boards. These support fixtures are arranged in a circular array around the edge of the first turntable. When the first turntable rotates counterclockwise, it can sequentially guide the PCB boards into the loading station, spraying station, soldering station, AOI inspection station, and unloading station.

[0007] The beneficial effects of the rotary spray welding machine integrating AOI and automatic material transfer provided by the present invention are as follows: Firstly, by setting a first rotary table to drive multiple carrying fixtures to perform circumferential cyclic motion, multiple workstations such as feeding, spraying, spray welding, AOI inspection and unloading are arranged around the circumference of the rotary table and work synchronously. This structural setting can further shorten the physical interval time of the traditional linear layout workstations, and shorten the time required for stopping, moving out, handling and repositioning the PCB board between various workstations, thereby realizing rapid connection between various workstations, and further improving the overall utilization rate and unit output of the rotary spray welding machine integrating AOI and automatic material transfer. Secondly, by setting a support fixture on the first turntable, the PCB board is clamped and fixed in one go after being loaded into the support fixture from the loading station, and no repositioning is required until unloading; thereby providing a unified and stable coordinate reference for the processing and inspection of each station, fundamentally eliminating the cumulative error caused by repeated clamping and positioning, ensuring that the process path and parameters experienced by each PCB board are consistent, thereby improving the welding reliability, welding accuracy and welding yield. Thirdly, by integrating an AOI inspection station, the welding quality can be detected instantly and online after the spray welding operation is completed, achieving millisecond-level defective product identification and interception. Good and defective products can be screened and unloaded at the unloading station; there is no need to re-screen good and defective products in the future, thereby further improving production efficiency.

[0008] As a preferred embodiment, the support fixture includes A fixture base is detachably mounted on the first turntable; the fixture base has an upward-facing supporting cavity for supporting the PCB board, and a through hole penetrating the supporting cavity is provided on the lower surface of the fixture base; and, The fixture top plate is detachably mounted on the fixture base. The fixture top plate is located directly above the bearing cavity. After the PCB board is installed into the bearing cavity, the fixture top plate can be installed into the fixture base and abut against the upper surface of the PCB board, so that the pins of the PCB board or components are exposed in the cavity through hole.

[0009] As a preferred embodiment, the first turntable is provided with a plurality of first mounting recesses for mounting the bearing fixture on its periphery, and the bottom of the first turntable is provided with a clearance opening at the location of each first mounting recess, the clearance opening extending upward through the bottom of the first mounting recess. The first mounting cavity is provided with a first mounting post, and the fixture base is provided with a first mounting hole for the first mounting post to be inserted. The fixture base is provided with a second assembly post, and the fixture top plate is provided with a second assembly hole for the second assembly post to be inserted.

[0010] As a preferred embodiment, a first fixed plate is provided at the center of the frame, and a first turntable is rotatably mounted on the bottom of the first fixed plate; The bottom of the first fixed plate is equipped with a first drive motor, which is connected to the first turntable to drive the first turntable to rotate counterclockwise.

[0011] As a preferred embodiment, the spraying station is equipped with a spraying device, which includes... The first mounting bracket is fixedly mounted on the frame and located at the bottom of the first turntable; The first X-axis actuator is mounted on the first mounting bracket; The first Y-axis actuator is located at the first X-axis actuator; A first protective housing is disposed on the first X-axis actuator; and The first spray gun is located on the first X-axis actuator and inside the first protective housing; When the first turntable-linked PCB board enters the spraying station, the first X-axis actuator and the first Y-axis actuator can work together with the first spray gun to spray flux onto the PCB board.

[0012] As a preferred embodiment, the spray welding station includes a first spray welding station and a second spray welding station, which are arranged at intervals along the counterclockwise rotation direction of the first turntable. Both the first and second spray welding stations are equipped with spray welding devices, which include... The second mounting bracket is fixedly mounted on the frame and located at the bottom of the first turntable; The second X-axis actuator is located on the second mounting bracket; The second Y-axis actuator is located at the second X-axis actuator; The second Z-axis actuator is located at the second Y-axis actuator; A liquid storage tank is located on the second Z-axis actuator; and, The nozzle is located inside the liquid storage tank; The nozzle has an upward-facing outlet, and the storage tank is equipped with an electromagnetic pump that can pump molten solder from the bottom of the nozzle upwards and out of the outlet.

[0013] As a preferred embodiment, the outer surface of the nozzle is provided with an overflow guide sleeve, and the overflow guide sleeve is provided with a spiral guide plate, which extends in a spiral shape from top to bottom.

[0014] As a preferred option, the AOI inspection station is equipped with an AOI inspection device, which includes... The third mounting bracket is fixedly mounted on the frame and located at the bottom of the first turntable; The third X-axis actuator is located on the third mounting bracket; The third Y-axis actuator is located at the third X-axis actuator; The third Z-axis actuator is located at the third Y-axis actuator; and, The camera is located on the third Z-axis actuator; the camera moves in conjunction with the third X-axis actuator, the third Y-axis actuator, and the third Z-axis actuator.

[0015] As a preferred embodiment, the unloading station is equipped with an unloading execution device, which includes... The fourth mounting bracket is fixedly mounted on the frame and located next to the first turntable; The fourth X-axis actuator is located on the fourth mounting bracket; The fourth Z-axis actuator is located on the fourth X-axis actuator; The fifth Z-axis actuator is located at the fourth X-axis actuator and is spaced to the left and right of the fourth Z-axis actuator. The fourth Z-axis actuator is equipped with a first gripper cylinder, and the fifth Z-axis actuator is equipped with a second gripper cylinder.

[0016] As a preferred embodiment, the feeding device also includes a good product material conveying mechanism and a defective product storage box, which are mounted on the frame and located next to the fourth mounting frame. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the rotary spray welding machine integrating AOI and automatic material transfer provided in the embodiments of this application; Figure 2 yes Figure 1 A partial three-dimensional structural diagram of a rotary spray welding machine integrating AOI and automatic material transfer is shown. Figure 3 yes Figure 2 A partial three-dimensional structural diagram of a rotary spray welding machine integrating AOI and automatic material transfer is shown. Figure 4This is a front view of the first turntable of the rotary spray welding machine with integrated AOI and automatic material transfer shown in Figure 2. Figure 5 yes Figure 4 A three-dimensional structural diagram of the first turntable of the rotary spray welding machine integrating AOI and automatic material transfer is shown. Figure 6 yes Figure 5 A three-dimensional structural diagram of the support fixture for a rotary spray welding machine integrating AOI and automatic material transfer is shown. Figure 7 yes Figure 6 An exploded three-dimensional view of the support fixture of the rotary spray welding machine that integrates AOI and automatic material transfer. Figure 8 yes Figure 3 A three-dimensional structural diagram of the spraying device of a rotary spray welding machine integrating AOI and automatic material transfer is shown. Figure 9 yes Figure 8 Another perspective three-dimensional structural diagram of the spraying device of the rotary spray welding machine integrating AOI and automatic material transfer. Figure 10 yes Figure 3 The diagram shows a three-dimensional structural schematic of the spraying device of a rotary spraying welding machine that integrates AOI and automatic material transfer. Figure 11 yes Figure 10 Another perspective three-dimensional structural diagram of the spraying device of the rotary spraying welding machine integrating AOI and automatic material transfer. Figure 12 yes Figure 11 A cross-sectional view of the nozzle and overflow guide sleeve of the spraying device of the rotary spray welding machine with integrated AOI and automatic material transfer. Figure 13 yes Figure 3 A three-dimensional structural schematic diagram of the AOI inspection device of a rotary spray welding machine integrating AOI and automatic material transfer is shown. Figure 14 yes Figure 3 The diagram shows a three-dimensional structural schematic of the unloading execution device of a rotary spray welding machine that integrates AOI and automatic material transfer.

[0019] The following are the labeling elements in the figure: 100. Rotary spray welding machine integrating AOI and automatic material transfer; 101. Loading station; 102. Spraying station; 1031. First spray welding station; 1032. Second spray welding station; 104. AOI inspection station; 105. Unloading station; 10. Frame; 11. First fixed plate; 12. First drive motor; 13. First sensor; 20. First turntable; 21. Support fixture; 211. Fixture base; 212. Fixture top plate; 213. Support cavity; 214. Through hole in the cavity; 215. First assembly hole; 216. Second assembly post; 217. Second assembly hole; 22. First mounting cavity; 23. Clearance opening; 24. First assembly post; 30. Spraying device; 31. First mounting bracket; 32. First X-axis actuator; 33. First Y-axis actuator; 34. First protective shell; 35. First spray gun; 36. "U"-shaped mounting bracket; 361. Infrared detector; 40. Spray welding device; 41. Second mounting bracket; 42. Second X-axis actuator; 43. Second Y-axis actuator; 44. Second Z-axis actuator; 45. Liquid storage tank; 451. Electromagnetic pump; 46. Nozzle; 461. Liquid outlet; 462. Mounting base; 47. Overflow guide sleeve; 471. Spiral guide plate; 50. AOI inspection device; 51. Third mounting bracket; 52. Third X-axis actuator; 53. Third Y-axis actuator; 54. Third Z-axis actuator; 55. Camera; 56. Lamp cover; 60. Material feeding device; 61. Fourth mounting bracket; 62. Fourth X-axis actuator; 63. Fourth Z-axis actuator; 64. Fifth Z-axis actuator; 65. First gripper cylinder; 66. Second gripper cylinder; 67. Good product material conveying mechanism; 68. Defective product storage box; 200. PCB board; Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0021] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0022] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] Please refer to the following: Figures 1 to 14 The rotary spray welding machine 100 integrating AOI and automatic material transfer, as provided in the embodiments of this application, will now be described. The rotary spray welding machine 100 integrating AOI and automatic material transfer includes a frame 10 and a first rotary table 20.

[0026] The first turntable 20 is rotatably mounted on the frame 10. The turntable-type spray welding machine 100, which integrates AOI and automatic material transfer, also includes a loading station 101 mounted on the frame 10 for loading PCB board 200, a spraying station 102 mounted on the frame 10 for spraying flux onto PCB board 200, a spray welding station mounted on the frame 10 for spray welding onto PCB board 200, an AOI inspection station 104 mounted on the frame 10 for inspecting PCB board 200, and a unloading station 105 mounted on the frame 10 for unloading PCB board. The loading station 101, spraying station 102, spray welding station, AOI inspection station 104, and unloading station 105 are located outside the first turntable 20 and are arranged sequentially at intervals along the counterclockwise rotation direction of the first turntable 20. The first turntable 20 is detachably equipped with multiple support fixtures 21 for supporting the PCB board 200. The multiple support fixtures 21 are arranged in a circular array on the edge of the first turntable 20. When the first turntable 20 rotates counterclockwise, it can drive the PCB board 200 to enter the loading station 101, the spraying station 102, the spray welding station, the AOI inspection station 104 and the unloading station 105 in sequence.

[0027] Specifically, firstly, by setting a first turntable 20 to drive multiple carrier fixtures 21 to perform circumferential cyclic motion, multiple workstations such as loading, spraying, spray welding, AOI inspection, and unloading are arranged around the turntable and work synchronously. This structural arrangement can further shorten the physical interval time of traditional linear layout workstations and shorten the time required for stopping, removing, transporting, and repositioning PCB boards between workstations, thereby achieving rapid connection between workstations and further improving the overall utilization rate and unit output of the turntable spray welding machine 100 integrating AOI and automatic material transfer; secondly, by setting carrier fixtures 21 on the first turntable 20, PCB boards are loaded from the loading station 101 into the carrier fixtures 21. After one-time clamping and fixing, no repositioning is required until unloading. This provides a unified and stable coordinate reference for processing and inspection at each station, fundamentally eliminating the cumulative error caused by repeated clamping and positioning, ensuring that the process path and parameters of each PCB board are consistent, thereby improving welding reliability, welding accuracy and welding yield. Thirdly, by integrating AOI inspection station 104, welding quality can be detected instantly and online after the spray welding operation, achieving millisecond-level defective product identification and interception. Good and defective products can be screened and unloaded at unloading station 105. There is no need to re-screen good and defective products afterward, thereby further improving production efficiency.

[0028] Please refer to the following: Figures 2 to 7 In some embodiments, the support fixture 21 includes a fixture base 211 and a fixture top plate 212. The fixture base 211 is detachably mounted on the first turntable 20; the fixture base 211 has an upward-facing support cavity 213 for supporting the PCB board, and the lower surface of the fixture base 211 is provided with a cavity through hole 214 penetrating the support cavity 213; the fixture top plate 212 is detachably mounted on the fixture base 211; the fixture top plate 212 is located directly above the support cavity 213, and when the PCB board is inserted into the support cavity 213, the fixture top plate 212 can be inserted into the fixture base 211 and abut against the upper surface of the PCB board, so that the pins of the PCB board or components are exposed in the cavity through hole 214.

[0029] Specifically, the first turntable 20 has a plurality of first mounting cavities 22 for mounting the support fixture 21 on its periphery. The bottom of the first turntable 20 has a clearance opening 23 at the location of each first mounting cavity 22, and the clearance opening 23 extends upward through the bottom of the first mounting cavity 22. The first mounting cavity 22 is provided with a first mounting post 24, and the fixture base 211 is provided with a first mounting hole 215 for the first mounting post 24 to be inserted. The fixture base 211 is provided with a second mounting post 216, and the fixture top plate 212 is provided with a second mounting hole 217 for the second mounting post 216 to be inserted.

[0030] For example, after the first turntable 20 enters the loading station 101 in conjunction with a support fixture 21, the top plate 212 of the support fixture 21 that has entered the loading station 101 is moved vertically upward, so that the top plate 212 is disengaged from the fixture base 211; then the PCB board is installed one by one into the support cavity 213 on the fixture base 211, and the pins of the PCB board or the components supported on the PCB board are set downward, so that the pins can be exposed in the cavity through hole 214; then the top plate 212 is reinstalled into the fixture base 211, and the top plate 212 is used to abut against the PCB board and the components, so that the top plate 212 and the fixture base 211 are used to clamp and fix the PCB board and its associated components.

[0031] More specifically, the bottom of the fixture top plate 212 is detachably equipped with a stop pad 2121. After the PCB board and its accessories are installed into the bearing cavity 213, the fixture top plate 212 is installed into the fixture base 211. The stop pad can then abut against the upper surface of the PCB board and its accessories, thereby completing the clamping of the PCB board and its accessories. By changing the size of the stop pad according to different thicknesses and types of accessories, it can be adapted to the clamping operation of PCB boards and their accessories of different thicknesses, further enhancing its versatility.

[0032] Please refer to the following: Figures 2 to 5 A first fixed plate 11 is located at the center of the frame 10, and a first turntable 20 is rotatably mounted on the bottom of the first fixed plate 11. A first drive motor 12 is located at the bottom of the first fixed plate 11, and the first drive motor 12 is connected to the first turntable 20 to drive the first turntable 20 to rotate counterclockwise. Multiple first sensors 13 are provided on the upper surface edge of the first fixed plate 11. The number of first sensors 13 is equal to the number of workstations, that is, one first sensor 13 is configured for each workstation. When the carrying fixture 21 enters the corresponding workstation, the position of the carrying fixture 21 can be identified by the first sensor 13, and the first turntable 20 can be controlled to stop rotating, thereby completing the transfer of the PCB board from the previous workstation to the next workstation. This structural setting is simple and precise in control, which is conducive to further improving production efficiency and production yield.

[0033] It should be noted that the first drive motor 12 is a servo motor, which can improve the rotational accuracy of the first turntable 20.

[0034] Please refer to the following: Figures 1 to 3 as well as Figures 8 to 9In some embodiments, the spraying station 102 is equipped with a spraying device 30, which includes a first mounting frame 31, a first X-axis actuator 32, a first Y-axis actuator 33, a first protective shell 34, and a first spray gun 35. The first mounting frame 31 is fixedly mounted on the frame 10 and located at the bottom of the first turntable 20. The first X-axis actuator 32 is mounted on the first mounting frame 31, the first Y-axis actuator 33 is mounted on the first X-axis actuator 32, the first protective shell 34 is mounted on the first X-axis actuator 32, and the first spray gun 35 is mounted on the first X-axis actuator 32 and located inside the first protective shell 34. When the first turntable 20 drives the PCB board into the spraying station 102, the first X-axis actuator 32 and the first Y-axis actuator 33 can work together with the first spray gun 35 to spray flux onto the PCB board.

[0035] Specifically, both the first X-axis actuator 32 and the first Y-axis actuator 33 include a guide rail, a slider, a slide plate, and an actuator cylinder or actuator motor. The slide plate is slidably mounted on the guide rail via the slider, and the slide plate is driven to move along the extension direction of the guide rail by the actuator motor or actuator cylinder. Therefore, the guide rail of the first X-axis actuator 32 is mounted on the first mounting bracket 31, and the guide rail of the first Y-axis actuator 33 is mounted on the slide plate of the first X-axis actuator 32. The first protective shell 34 and the first spray gun 35 are mounted on the slide plate of the first Y-axis actuator 33, so that the first spray gun 35 and the first protective shell 34 move in the X-axis and Y-axis directions in conjunction with the first X-axis actuator 32 and the first Y-axis actuator 33, thereby adjusting the position of the first spray gun 35 relative to the PCB board so that the first spray gun 35 can spray flux onto the pins of the PCB board and its associated components.

[0036] It should be noted that the flux is rosin, and the first spray gun 35 is an electronic spray gun. The electronic spray gun can spray the flux upwards, so that the flux adheres to the pins of the PCB board and its associated components. Subsequently, the PCB board of the spraying station 102 can be directly transferred to the spraying station through the first turntable 20 for spraying and soldering operations.

[0037] More specifically, the slide plate of the first Y-axis actuator 33 is equipped with a U-shaped mounting bracket 36. The opening of the U-shaped mounting bracket 36 faces the first spray gun 35. Infrared detectors 361 are provided on the left and right sides of the U-shaped mounting bracket 36. The detection path of the infrared detectors 361 is perpendicular to the path of the first spray gun 35 spraying flux upwards. This allows the infrared detectors 361 to detect when the first spray gun 35 sprays flux upwards, thereby real-time monitoring of the working status of the first spray gun 35 spraying flux, thus improving the reliability and yield of the first spray gun 35 spraying flux.

[0038] Please refer to the following: Figures 1 to 3 as well as Figures 10 to 12In other embodiments, the spray welding station includes a first spray welding station 1031 and a second spray welding station 1032, which are arranged at intervals along the counterclockwise rotation direction of the first turntable 20. Both the first spray welding station 1031 and the second spray welding station 1032 are equipped with a spray welding device 40, which includes a second mounting frame 41, a second X-axis actuator 42, a second Y-axis actuator 43, a second Z-axis actuator 44, a liquid storage tank 45, and a nozzle 46. The second mounting frame 41 is fixedly mounted on the frame 10 and located at the bottom of the first turntable 20. The second X-axis actuator 42 is mounted on the second mounting frame 41, the second Y-axis actuator 43 is mounted on the second X-axis actuator 42, the second Z-axis actuator 44 is mounted on the second Y-axis actuator 43, the liquid storage tank 45 is mounted on the second Z-axis actuator 44, and the nozzle 46 is located inside the liquid storage tank 45. The nozzle 46 has its outlet 461 facing upwards, and the storage tank 45 is equipped with an electromagnetic pump 451. The electromagnetic pump 451 can make the molten solder flow upwards from the bottom of the nozzle 46 and flow out from the outlet 461.

[0039] For example, the second X-axis actuator 42, the second Y-axis actuator 43 and the second Z-axis actuator 44 are linked to move the liquid storage tank 45 in the X-axis, Y-axis and Z-axis directions, thereby adjusting the position of the nozzle 46 and the pins of the PCB board and its associated components. Then, the electromagnetic pump 451 delivers the molten solder in the liquid storage tank 45 from the bottom of the nozzle 46 upwards, so that the molten solder flows back downwards from the top of the nozzle 46. When the pin is close to the top of the nozzle 46, the pin can contact the molten solder on the top of the nozzle 46, thereby completing the soldering of the pin.

[0040] Specifically, the outer surface of the nozzle 46 is provided with an overflow guide sleeve 47, and the overflow guide sleeve 47 is provided with a spiral guide plate 471, which extends in a spiral shape from top to bottom. With this structure, after the molten solder is output from the outlet 461 at the top of the nozzle 46, it can flow downward along the surface of the spiral guide plate 471 and eventually flow back into the storage tank 45. This ensures that the molten solder flowing out of the outlet 461 at the top of the nozzle 46 will not fall directly downward from the top of the nozzle 46 and cause splashing, which can improve the cleanliness of the PCB board after soldering and obtain more uniform and consistent solder joints.

[0041] It should be noted that the second X-axis actuator 42, the second Y-axis actuator 43, and the second Z-axis actuator 44 all include guide rails, sliders, slide plates, and actuator motors or actuator cylinders. The slide plate is slidably mounted on the guide rail via the slider, and the slide plate is driven to move by the actuator motor or actuator cylinder. Therefore, the guide rail of the second Y-axis actuator 43 is mounted on the slide plate of the second X-axis actuator 42, and the guide rail of the second Z-axis actuator 44 is mounted on the slide plate of the second Y-axis actuator 43, thereby enabling the liquid storage tank 45 to move in the X, Y, and Z axes in conjunction with the second X-axis actuator 42, the second Y-axis actuator 43, and the second Z-axis actuator 44.

[0042] More specifically, the nozzle 46 is fixedly installed in the liquid storage tank 45 by the mounting base 462. The nozzle 46 extends upward and its top protrudes from the top of the liquid storage tank 45. The molten tin inside the liquid storage tank 45 can be driven by the electromagnetic pump 451 to enter from the bottom of the nozzle 46, flow upward and finally flow out from the liquid outlet 461 at the top of the nozzle 46.

[0043] Understandably, the storage tank 45 is equipped with a heating module for heating the molten tin (not shown in the figure).

[0044] Please refer to the following: Figures 1 to 3 as well as Figure 13 In some embodiments, the AOI inspection station 104 is equipped with an AOI inspection device 50, which includes a third mounting frame 51, a third X-axis actuator 52, a third Y-axis actuator 53, a third Z-axis actuator 54, and a camera 55. The third mounting frame 51 is fixedly mounted on the frame 10 and located at the bottom of the first turntable 20. The third X-axis actuator 52 is mounted on the third mounting frame 51, the third Y-axis actuator 53 is mounted on the third X-axis actuator 52, the third Z-axis actuator 54 is mounted on the third Y-axis actuator 53, and the camera 55 is mounted on the third Z-axis actuator 54. The camera 55 is moved by the linkage between the third X-axis actuator 52, the third Y-axis actuator 53, and the third Z-axis actuator 54.

[0045] It should be noted that the third X-axis actuator 52 has a similar structure to the second X-axis actuator 42, the third Y-axis actuator 53 has a similar structure to the second Y-axis actuator 43, and the third Z-axis actuator 54 has a similar structure to the second Z-axis actuator 44. All of them are designed to move a component along the X-axis, Y-axis, and Z-axis. Further details will not be provided here.

[0046] Specifically, it also includes a lampshade 56, which is fixedly mounted on the slide plate of the third Y-axis actuator 53. The lampshade 56 is located directly above the camera 55. The lampshade 56 has through holes that penetrate its upper and lower surfaces. The through holes are coaxial with the camera 55 and are spaced vertically. The lampshade 56 is equipped with a supplementary light to enhance the brightness, so that the camera 55 can more clearly capture the soldering quality of the pins of the PCB board and its associated components.

[0047] Please refer to Figures 1-4 and 5. In some embodiments, the unloading station 105 is provided with an unloading execution device 60, which includes a fourth mounting bracket 61, a fourth X-axis execution mechanism 62, a fourth Z-axis execution mechanism 63 and a fifth Z-axis execution mechanism 64. The fourth mounting bracket 61 is fixedly mounted on the frame 10 and located beside the first turntable 20. The fourth X-axis actuator 62 is mounted on the fourth mounting bracket 61. The fourth Z-axis actuator 63 is mounted on the fourth X-axis actuator 62. The fifth Z-axis actuator 64 is mounted on the fourth X-axis actuator 62 and is spaced apart from the fourth Z-axis actuator 63. The fourth Z-axis actuator 63 is equipped with a first gripper cylinder 65, and the fifth Z-axis actuator 64 is equipped with a second gripper cylinder 66.

[0048] Specifically, the fourth X-axis actuator 62 includes a slide rail, a slider, a slide plate, and an actuator motor. The slide plate is movably mounted on the slide rail via the slider, and is driven to move by the actuator motor. The fourth Z-axis actuator 63 and the fifth Z-axis actuator 64 are slide cylinders. The first gripper cylinder 65 is mounted on the slide plate of the fourth Z-axis actuator 63, and the second gripper cylinder 66 is mounted on the slide plate of the fifth Z-axis actuator 64, thereby driving the first gripper cylinder 65 to move up and down and the second gripper cylinder 66 to move up and down, respectively.

[0049] More specifically, the unloading execution device 60 also includes a good product material conveying mechanism 67 and a defective product storage box 68, which are located on the frame 10 and beside the fourth mounting frame 61. The first gripper cylinder 65 has two with a front-to-back spacing. When the fourth X-axis execution mechanism 62, in conjunction with the first gripper cylinder 65 and the second gripper cylinder 66, enters above the support fixture 21 of the first turntable 20, the second gripper cylinder 66 first clamps the fixture top plate 212 and removes it from the fixture base 211; then, the two first gripper cylinders 65 clamp the PCB board on the fixture base 211 one by one, and according to the detection result of the AOI inspection station 104, the PCB board of the first gripper cylinder 65 is transferred to the good product material conveying mechanism 67 or the defective product storage box 68.

[0050] The above are merely preferred embodiments of the present invention, and only specifically describe the technical principles of the present invention. These descriptions are only for explaining the principles of the present invention and should not be construed as limiting the scope of protection of the present invention in any way. Based on this explanation, any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention, as well as other specific embodiments of the present invention that can be conceived by those skilled in the art without creative effort, should be included within the scope of protection of the present invention.

Claims

1. A rotary spray welding machine integrating AOI and automatic material transfer, characterized in that, Includes a frame (10) and a first turntable (20) rotatably mounted on the frame (10); It also includes a loading station (101) set on the frame (10) for loading PCB boards, a spraying station (102) set on the frame (10) for spraying flux onto PCB boards, a spraying station set on the frame (10) for spraying solder onto PCB boards, an AOI inspection station (104) set on the frame (10) for inspecting PCB boards, and a unloading station (105) set on the frame (10) for unloading PCB boards. The loading station (101), spraying station (102), spraying station, AOI inspection station (104) and unloading station (105) are set on the outside of the first turntable (20) and are arranged at intervals along the counterclockwise rotation direction of the first turntable (20). The first turntable (20) is detachably equipped with multiple support fixtures (21) for carrying PCB boards. The multiple support fixtures (21) are arranged in a circular array on the edge of the first turntable (20). When the first turntable (20) rotates counterclockwise, it can link the PCB boards to enter the loading station (101), spraying station (102), spray welding station, AOI inspection station (104) and unloading station (105) in sequence.

2. The rotary spray welding machine integrating AOI and automatic material transfer according to claim 1, characterized in that, The support fixture (21) includes A fixture base (211) is detachably mounted on the first turntable (20); the fixture base (211) has an upward-facing support cavity (213) for supporting the PCB board, and a cavity through hole (214) penetrating the support cavity (213) is provided on the lower surface of the fixture base (211); and, The fixture top plate (212) is detachably mounted on the fixture base (211). The fixture top plate (212) is located directly above the bearing cavity (213). When the PCB board is installed into the bearing cavity (213), the fixture top plate (212) can be installed into the fixture base (211) and abut against the upper surface of the PCB board, so that the pins of the PCB board or components are exposed in the cavity through hole (214).

3. The rotary spray welding machine integrating AOI and automatic material transfer according to claim 2, characterized in that, The first turntable (20) has multiple first mounting cavities (22) on its periphery for mounting the bearing fixture (21). The bottom of the first turntable (20) has a clearance opening (23) at the location of each first mounting cavity (22), and the clearance opening (23) extends upward through the bottom of the first mounting cavity (22). The first mounting cavity (22) is provided with a first mounting post (24), and the fixture base (211) is provided with a first mounting hole (215) for the first mounting post (24) to be inserted. The fixture base (211) is provided with a second assembly post (216), and the fixture top plate (212) is provided with a second assembly hole (217) for the second assembly post (216) to be inserted.

4. The rotary spray welding machine integrating AOI and automatic material transfer according to any one of claims 1-3, characterized in that, The frame (10) has a first fixed plate (11) at its center, and the first turntable (20) is rotatably mounted on the bottom of the first fixed plate (11); The bottom of the first fixed disk (11) is provided with a first drive motor (12), which is connected to the first turntable (20) to drive the first turntable (20) to rotate counterclockwise.

5. The rotary spray welding machine integrating AOI and automatic material transfer according to any one of claims 1-3, characterized in that, The spraying station (102) is equipped with a spraying device (30), which includes: The first mounting bracket (31) is fixedly mounted on the frame (10) and located at the bottom of the first turntable (20); The first X-axis actuator (32) is mounted on the first mounting bracket (31); The first Y-axis actuator (33) is located on the first X-axis actuator (32); A first protective shell (34) is disposed on the first X-axis actuator (32); and, The first spray gun (35) is located in the first X-axis actuator (32) and inside the first protective shell (34); When the first turntable (20) drives the PCB board into the spraying station (102), the first X-axis actuator (32) and the first Y-axis actuator (33) can work together with the first spray gun (35) to spray flux onto the PCB board.

6. The rotary spray welding machine integrating AOI and automatic material transfer according to claim 5, characterized in that, The spray welding station includes a first spray welding station (1031) and a second spray welding station (1032). The first spray welding station (1031) and the second spray welding station (1032) are arranged at intervals along the counterclockwise rotation direction of the first turntable (20). Both the first spray welding station (1031) and the second spray welding station (1032) are equipped with a spray welding device (40), the spray welding device (40) includes The second mounting bracket (41) is fixedly mounted on the frame (10) and located at the bottom of the first turntable (20); The second X-axis actuator (42) is located on the second mounting bracket (41). The second Y-axis actuator (43) is located on the second X-axis actuator (42); The second Z-axis actuator (44) is located on the second Y-axis actuator (43); The liquid storage tank (45) is located on the second Z-axis actuator (44); and, The nozzle (46) is located inside the liquid storage tank (45); The nozzle (46) has its outlet (461) facing upwards, and the storage tank (45) is equipped with an electromagnetic pump (451). The electromagnetic pump (451) can make the molten tin flow upwards from the bottom of the nozzle (46) and out through the outlet (461).

7. The rotary spray welding machine integrating AOI and automatic material transfer according to claim 6, characterized in that, The nozzle (46) has an overflow guide sleeve (47) on its outer surface. The overflow guide sleeve (47) has a spiral guide plate (471) which extends spirally from top to bottom.

8. The rotary spray welding machine integrating AOI and automatic material transfer according to claim 6 or 7, characterized in that, The AOI inspection station (104) is equipped with an AOI inspection device (50), which includes... The third mounting bracket (51) is fixedly mounted on the frame (10) and located at the bottom of the first turntable (20); The third X-axis actuator (52) is located on the third mounting bracket (51); The third Y-axis actuator (53) is located on the third X-axis actuator (52); The third Z-axis actuator (54) is located at the third Y-axis actuator (53); and, The camera (55) is located on the third Z-axis actuator (54); the camera (55) is moved by the third X-axis actuator (52), the third Y-axis actuator (53) and the third Z-axis actuator (54).

9. The rotary spray welding machine integrating AOI and automatic material transfer according to claim 8, characterized in that, The unloading station (105) is equipped with an unloading execution device (60), which includes: The fourth mounting bracket (61) is fixedly mounted on the frame (10) and located beside the first turntable (20); The fourth X-axis actuator (62) is mounted on the fourth mounting bracket (61); The fourth Z-axis actuator (63) is located on the fourth X-axis actuator (62); The fifth Z-axis actuator (64) is located on the fourth X-axis actuator (62) and is spaced to the left and right of the fourth Z-axis actuator (63); The fourth Z-axis actuator (63) is equipped with a first gripper cylinder (65), and the fifth Z-axis actuator (64) is equipped with a second gripper cylinder (66).

10. The rotary spray welding machine integrating AOI and automatic material transfer according to claim 9, characterized in that, The feeding device (60) also includes a good product material conveying mechanism (67) and a defective product storage box (68), which are located on the frame (10) and next to the fourth mounting frame (61).

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