A machine for tin dipping of an electromagnetic coil

Abstract

The utility model belongs to the technical field of electromagnetic coil tin dipping, especially a kind of electromagnetic coil tin dipping machine, including rack, the top of the rack is equipped with rack shield around, the top of the rack is also respectively provided with carousel mechanism, feeding clamping positioning mechanism, soldering flux mechanism, tin dipping mechanism, bend foot mechanism, CCD detection mechanism, resistance detection mechanism and unloading mechanism.The electromagnetic coil tin dipping machine, the carousel mechanism of the application cooperates with the clamping positioning mechanism of annular array distribution, realizes multiple stations parallel operation, each procedure seamlessly links, and the beat is stable, can 24 hours continuous operation, and greatly improves the production capacity, and significantly reduces artificial dependence and operating intensity.Carousel divider ensures extremely high repeat positioning accuracy;Synchronous centering clamping mechanism makes coil positioning accurate;Stable soldering flux coating and automatic tin scraping tin furnace guarantee that tin dipping is uniform and consistent;Servo module driven bend foot mechanism realizes high precision and consistency of pin bending.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic coil tinning technology, and in particular to an electromagnetic coil tinning machine. Background Technology

[0002] As a core component of electronic devices, the soldering quality of electromagnetic coil leads directly affects conductivity and assembly reliability. Currently, traditional methods in coil soldering have many drawbacks and are difficult to adapt to the demands of large-scale, high-precision production. Specific technical problems are as follows: Firstly, the high degree of manual intervention leads to low efficiency and inconsistent quality. Most small and medium-sized manufacturers rely on manual labor to complete processes such as material loading, fluxing, tinning, and lead bending. Manual operation is easily affected by fatigue and experience, resulting in limited single-shift capacity and frequent problems such as inconsistent lead tinning depth, uneven tin layer thickness, and deviations in lead bending angle, leading to a high defect rate.

[0003] Secondly, the fragmented process leads to a broken workflow. Most existing equipment is a single-function model, requiring manual transfer of coils to different equipment for processing and testing. During the transfer process, coils are prone to being bumped or the pins are deformed. In addition, the waiting time for switching between workstations is long, which lengthens the overall production cycle and makes it impossible to form a continuous workflow.

[0004] Third, there is a disconnect between inspection and processing. In the traditional model, appearance and resistance inspection often lag behind the processing stage, and even rely on manual visual judgment, making it difficult to screen defective products in real time. This results in unqualified products flowing into subsequent assembly, increasing rework costs and delivery risks.

[0005] Therefore, an electromagnetic coil tinning machine is needed. Utility Model Content

[0006] Based on the existing technical problems, this utility model proposes an electromagnetic coil tinning machine.

[0007] The present invention discloses an electromagnetic coil tinning machine, which includes a frame, a frame cover installed around the top of the frame, and a turntable mechanism, a feeding clamping and positioning mechanism, a soldering mechanism, a tinning mechanism, a bending leg mechanism, a CCD detection mechanism, a resistance detection mechanism and a unloading mechanism respectively provided on the top of the frame. The turntable mechanism enables the electromagnetic coil to switch and adjust its circumferential direction during the tinning operation. The feeding, clamping, and positioning mechanism includes an action to clamp and position the electromagnetic coil. The welding assistance mechanism performs the welding assistance action before the electromagnetic coil is tinned and soldered. The tinning mechanism performs the tinning action on the electromagnetic coil; The bending mechanism enables the bending action of the electromagnetic coil after it has been tinned. The CCD inspection mechanism performs the visual inspection action after the bending operation; The resistance detection mechanism performs the action of resistance detection after the electromagnetic coil is tinned. The feeding mechanism performs the action of feeding qualified and unqualified products after electromagnetic coil detection.

[0008] Preferably, the turntable mechanism includes a turntable motor and a turntable divider mounted on the top mounting plate of the frame, wherein the output end of the turntable motor is mounted to the input end of the turntable divider, and a rotating turntable is mounted on the output end of the turntable divider; Multiple feeding and clamping positioning mechanisms are arranged in a circular array on the top of the rotating turntable. Each feeding and clamping positioning mechanism includes a clamping positioning seat mounted on the top of the rotating turntable. A clamping positioning guide rail is mounted on the surface of the clamping positioning seat. A clamping positioning slider is slidably inserted into the surface of the clamping positioning guide rail. The clamping positioning slider is limited and locked to the clamping positioning guide rail by screws. A clamping positioning connecting plate is mounted on the surface of the clamping positioning connecting plate. A U-shaped clamping seat is mounted on the surface of the U-shaped clamping seat. One side of the U-shaped clamping seat is rotatably connected to a bearing. A pneumatic clamping hand is mounted, with an electromagnetic coil manually installed on the surface of the pneumatic clamping hand. Gears are also mounted on the surface of the pneumatic clamping hand located inside the U-shaped clamping base. A drive slide is mounted on the top of the U-shaped clamping base, and a rack is slidably inserted into the inner wall of the drive slide. The tooth grooves on both sides of the bottom end of the rack mesh with the teeth of the two gears below. A double-acting cylinder is mounted on the top of the drive slide, and L-shaped connecting plates are mounted on the two telescopic ends of the double-acting cylinder. The bottoms of the two L-shaped connecting plates are fixedly mounted to the two ends of the rack.

[0009] Preferably, the fluxing mechanism includes a fluxing base frame mounted above the top mounting plate of the frame, a fluxing support seat mounted on the top of the fluxing base frame, and a flux tank mounted on the top of the fluxing support seat, with flux placed inside the flux tank; The soldering mechanism includes a soldering base plate mounted above the top mounting plate of the frame. A solder pot support block and a soldering support seat are respectively mounted on the top of the soldering base plate. A solder pot support plate is mounted on the top of each of the two solder pot support blocks. Solder pot heat insulation blocks are mounted at both ends of the top of each solder pot support plate. A solder pot assembly is mounted on the top of each of the two solder pot heat insulation blocks. The solder pot of the solder pot assembly melts the solder wire. A vertical solder scraping cylinder is mounted on the top side of one of the soldering support seats. A horizontal solder scraping cylinder is mounted on the telescopic end of the vertical solder scraping cylinder. A solder scraping heat insulation plate is mounted on the telescopic end of the horizontal solder scraping cylinder. A solder scraping heat insulation plate is mounted on the bottom end of the heat insulation plate. A solder scraper is located at the top of the solder pot assembly. A solder feeding assembly is installed on the top of another soldering support base to deliver solder wire into the solder pot assembly. A soldering detection cylinder is installed on the top of the last soldering support base. A soldering detection rod is installed at the telescopic end of the soldering detection cylinder, and a detection needle is installed at the bottom of one end of the detection rod. The detection needle detects the solder surface of the solder pot assembly. Soldering baffle cylinders are installed on both sides of the solder pot support plate, and soldering baffles are installed at the telescopic ends of both soldering baffle cylinders. The soldering baffles are located above the solder pot assembly.

[0010] Preferably, the bending mechanism includes a bending base plate mounted above the top mounting plate of the frame. A bending horizontal servo linear module is mounted at the top center of the bending base plate. A bending vertical servo linear module is mounted at the drive end of the bending horizontal servo linear module. A bending U-connecting plate is mounted at the drive end of the bending vertical servo linear module. Bending components are fixedly mounted at both ends of the U-shaped bending U-connecting plate. The bending components realize the bending action of the electromagnetic coil. A bending upright is mounted on the top surface of the bending base plate. A bending telescopic cylinder is mounted on the top of the bending upright. A bending rear top plate is mounted on the telescopic end of the bending telescopic cylinder. A rear top fixture is provided on the surface of the bending rear top plate. The rear top fixture contacts and presses the electromagnetic coil above the turntable mechanism for positioning.

[0011] Preferably, the CCD detection mechanism includes a CCD detection base plate mounted above the top mounting plate of the frame. Detection support plates are mounted at both ends of the top of the CCD detection base plate, and a detection top plate is mounted on the top of each of the two detection support plates. A detection horizontal servo linear module is mounted on the top of the detection top plate, and a CCD detection mounting frame is mounted on the drive end of the detection horizontal servo linear module. A CCD detection camera is mounted on the top side of the CCD detection mounting frame, and an adjusting guide rod is slidably inserted into one end of the top of the CCD detection mounting frame. The adjusting guide rod is locked to the surface of the CCD detection mounting frame by screws, and a detection light source is mounted on the bottom end of each of the two adjusting guide rods.

[0012] Preferably, the resistance detection mechanism includes resistance detection rods mounted above the mounting plate on the top of the frame. A resistance detection top plate is fixedly mounted on the top of each of the two resistance detection rods. A resistance voltage fixing plate is mounted on one end surface of the resistance detection top plate. A resistance detection horizontal cylinder is mounted on the bottom of the resistance voltage fixing plate. A resistance detection connecting plate is mounted on the telescopic end of the resistance detection horizontal cylinder. A resistance detection vertical cylinder is mounted on the bottom of the resistance detection connecting plate. A resistance detection mounting plate is mounted on the telescopic bottom end of the resistance detection vertical cylinder. Probe fixing blocks are linearly arrayed on the bottom of the resistance detection mounting plate, and resistance detection probes are mounted on the bottom of each of the multiple probe fixing blocks. An auxiliary telescopic cylinder is also installed on the top of the resistance detection top plate. An auxiliary adjustment plate is installed at the telescopic bottom of the auxiliary telescopic cylinder. Auxiliary guide rods are installed at both ends of the auxiliary adjustment plate. The arc surfaces of the auxiliary guide rods are slidably inserted into the surface of the resistance detection top plate. Air pipe connection pressure plates are installed at the bottom ends of the two auxiliary guide rods. An air pipe connector adapter plate is sealed and connected to the bottom of the air pipe connection pressure plate. The surface of the air pipe connector adapter plate is pneumatically connected to multiple drive bidirectional cylinders above the rotating turntable through air pipes.

[0013] Preferably, the unloading mechanism includes an unloading base plate mounted above the top mounting plate of the frame. A conveying assembly is mounted on the top of the unloading base plate. The conveying assembly is driven by a motor to move a conveyor belt. Unloading support seats are mounted at both ends of the top of the conveying assembly. Unloading cylinder fixing blocks are rotatably connected to the top sides of the two unloading support seats via bearings. One end of the unloading cylinder fixing block passes through and extends to one side of the unloading support seat. An angle driving cylinder is also fixedly mounted on the side of the unloading support seat. The telescopic end of the drive cylinder is hinged to one end of the feeding cylinder fixing block via a connecting rod. A feeding telescopic cylinder is installed on one side of the feeding cylinder fixing block. A feeding drive plate is installed on the telescopic end of the feeding telescopic cylinder. Feeding limit slide rods are installed at both ends of the feeding drive plate. The arc surfaces of the two feeding limit slide rods are slidably inserted into the surface of the feeding cylinder fixing block. A feeding rejection plate is fixedly installed at the other end of the two feeding limit slide rods. Feeding pneumatic grippers are installed at both ends of the bottom of the feeding rejection plate.

[0014] The beneficial effects of this utility model are as follows: This application's turntable mechanism, combined with a ring-array distributed clamping and positioning mechanism, enables multi-station parallel operation, seamless connection between processes, stable cycle time, and continuous 24-hour operation, significantly increasing production capacity and greatly reducing reliance on manual labor and operational intensity. The turntable divider ensures extremely high repeatability; the synchronous centering clamping mechanism ensures precise coil positioning; stable flux application and an automatic solder pot ensure uniform soldering; and the servo module-driven bending mechanism achieves high precision and consistency in pin bending. Integrated CCD vision inspection and resistance testing mechanisms enable online, non-destructive comprehensive screening of product appearance defects such as bending angles and solder layer quality, as well as electrical performance such as resistance and conductivity, achieving accurate quality judgment and data traceability, effectively preventing defective products from leaving the factory. Adjustable elements are designed in multiple mechanisms, such as the clamping slider and the detection light source, allowing the equipment to quickly adapt to the production needs of different specifications of electromagnetic coils, enhancing the flexibility of the production line. The frame cover ensures operational safety, and the robust structural foundation and mature pneumatic and mechanical transmission solutions ensure the stability and durability of the equipment under long-term high-load operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an electromagnetic coil tinning machine; Figure 2 A three-dimensional view of the frame structure of an electromagnetic coil tinning machine; Figure 3 A perspective view of the feeding mechanism of an electromagnetic coil tinning machine; Figure 4 A three-dimensional view of the CCD inspection mechanism of an electromagnetic coil tinning machine; Figure 5 A three-dimensional view of the detection light source structure of an electromagnetic coil tinning machine; Figure 6 A three-dimensional view of the bending mechanism of an electromagnetic coil tinning machine; Figure 7 A perspective view of the turntable mechanism of an electromagnetic coil tinning machine; Figure 8 A perspective view of the feeding, clamping, and positioning mechanism of an electromagnetic coil tinning machine; Figure 9 A perspective view of a U-shaped clamping base structure for an electromagnetic coil tinning machine; Figure 10 A perspective view of the soldering mechanism of an electromagnetic coil soldering machine; Figure 11 A three-dimensional view of the soldering mechanism of an electromagnetic coil soldering machine; Figure 12 A perspective view of a resistance detection mechanism for an electromagnetic coil tinning machine; Figure 13 This is a three-dimensional structural view of the conveying component of an electromagnetic coil tinning machine.

[0016] In the diagram: 1. Frame; 2. Frame cover; 3. Turntable mechanism; 31. Turntable motor; 32. Turntable divider; 33. Rotary turntable; 4. Loading, clamping, and positioning mechanism; 41. Clamping and positioning seat; 42. Clamping and positioning guide rail; 43. Clamping and positioning slider; 44. Clamping and positioning connecting plate; 45. U-shaped clamping seat; 46. Clamping pneumatic gripper; 47. Gear; 48. Drive slide; 49. Rack; 410. Drive bidirectional cylinder; 411. L-shaped connecting plate; 5. Soldering mechanism; 51. Soldering base frame; 52. Soldering support seat; 53. Flux tank; 6. Soldering mechanism; 61. 62. Solder pot base plate; 63. Solder pot support block; 64. Solder pot support base; 65. Solder pot support plate; 66. Solder pot heat insulation block; 67. Solder pot assembly; 68. Vertical solder scraper cylinder; 69. Horizontal solder scraper cylinder; 60. Solder scraper heat insulation plate; 610. Solder scraper sheet; 611. Solder feeding assembly; 612. Solder pot detection cylinder; 613. Solder pot detection rod; 614. Detection needle; 615. Solder pot baffle cylinder; 616. Solder pot baffle; 71. Bend mechanism; 72. Bend base plate; 73. Horizontal servo linear module; 74. Vertical servo linear module; 75. U-shaped connecting plate; 76. Bent-leg assembly; 77. Bent-leg upright; 78. Bent-leg telescopic cylinder; 79. Bent-leg rear top plate; 80. Rear top fixture; 81. CCD detection mechanism; 82. CCD detection base plate; 83. Detection support plate; 84. Detection top plate; 85. Detection horizontal servo linear module; 86. CCD detection mounting frame; 87. CCD detection camera; 88. Adjustment guide rod; 99. Detection light source; 90. Resistance detection mechanism; 91. Resistance detection rod; 92. Resistance detection top plate; 93. Resistance voltage fixing plate; 94. Resistance detection horizontal cylinder; 95. Resistance detection connecting plate; 96. Resistance detection... 97. Vertical cylinder; 98. Resistance detection mounting plate; 99. Probe fixing block; 90. Resistance detection probe; 910. Auxiliary telescopic cylinder; 911. Auxiliary adjustment plate; 912. Auxiliary guide rod; 913. Air pipe connection pressure plate; 914. Air pipe connector adapter plate; 10. Unloading mechanism; 101. Unloading base plate; 102. Conveying assembly; 103. Unloading support seat; 104. Unloading cylinder fixing block; 105. Angle drive cylinder; 106. Unloading telescopic cylinder; 107. Unloading drive plate; 108. Unloading limit slide bar; 109. Unloading rejection plate; 1010. Unloading pneumatic gripper. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Reference Figures 1-13An electromagnetic coil tinning machine includes a frame 1, with a frame cover 2 installed around the top of the frame 1. The top of the frame 1 is also provided with a turntable mechanism 3, a feeding and clamping positioning mechanism 4, a soldering mechanism 5, a tinning mechanism 6, a bending mechanism 7, a CCD detection mechanism 8, a resistance detection mechanism 9, and a unloading mechanism 10.

[0019] The turntable mechanism 3 enables the electromagnetic coil to switch and adjust its circumferential direction during the tinning operation. The turntable mechanism 3 includes a turntable motor 31 and a turntable divider 32 mounted on the top mounting plate of the frame 1. The output end of the turntable motor 31 is mounted on the input end of the turntable divider 32, and a rotating turntable 33 is mounted on the output end of the turntable divider 32.

[0020] Specifically, the turntable mechanism 3 enables the circumferential adjustment of the electromagnetic coil during the soldering operation. This means that the position of the electromagnetic coil can be flexibly adjusted according to production needs to adapt to different soldering, fluxing, and other processes. This design greatly improves the adaptability and flexibility of the equipment, enabling it to handle electromagnetic coils of different specifications or types. The addition of the turntable divider 32 precisely divides the turntable into multiple angular positions, achieving precise positioning and adjustment of the electromagnetic coil. The output of the turntable divider 32 precisely controls the position of the rotating turntable 33, ensuring that each electromagnetic coil is processed at the correct angle, thereby improving operational accuracy and reliability.

[0021] The feeding clamping and positioning mechanism 4 includes the action of clamping and positioning the electromagnetic coil; multiple feeding clamping and positioning mechanisms 4 are arranged in a circular array on the top of the rotating turntable 33. Each feeding clamping and positioning mechanism 4 includes a clamping and positioning seat 41 installed on the top of the rotating turntable 33. A clamping and positioning guide rail 42 is installed on the surface of the clamping and positioning guide rail 42. A clamping and positioning slider 43 is slidably inserted into the surface of the clamping and positioning guide rail 42. The clamping and positioning slider 43 is limited and locked to the clamping and positioning guide rail 42 by screws. A clamping and positioning connecting plate 44 is installed on the surface of the clamping and positioning connecting plate 44. A U-shaped clamping seat 45 is installed on the surface of the clamping and positioning connecting plate 44. One side of the U-shaped clamping seat 45 is open. A pneumatic clamping hand 46 is rotatably connected via a bearing. An electromagnetic coil is manually installed on the surface of the pneumatic clamping hand 46. Gears 47 are also installed on the surface of the U-shaped clamping seat 45 located inside the U-shaped clamping hand 46. A drive slide 48 is installed on the top of the U-shaped clamping seat 45. A rack 49 is slidably inserted into the inner wall of the drive slide 48. The tooth grooves on both sides of the bottom end of the rack 49 mesh with the teeth of the two gears 47 below. A double-acting cylinder 410 is installed on the top of the drive slide 48. L-shaped connecting plates 411 are installed on the two telescopic ends of the double-acting cylinder 410. The bottoms of the two L-shaped connecting plates 411 are fixedly installed to the two ends of the rack 49.

[0022] Specifically, the pneumatic clamping hand 46 achieves clamping action through pneumatic drive, providing stable and uniform clamping force to firmly fix the electromagnetic coil and prevent the coil from loosening or shifting during subsequent processes such as soldering and bending. The clamping and positioning slider 43 can slide along the clamping and positioning guide rail 42, and its position can be adjusted by locking with screws. Combined with the U-shaped clamping base and the pneumatic clamping hand, it can adapt to the clamping needs of electromagnetic coils of different sizes and lengths, improving the versatility of the equipment. The driving bidirectional cylinder 410 drives the rack 49 to slide along the driving slide 48 through the L-shaped connecting plate. The rack 49 meshes with the gear 47 on the clamping pneumatic clamping hand 46, converting linear motion into the rotational motion of the gear 47. Multiple clamping and positioning mechanisms are distributed in a ring array on the top of the rotating turntable 33, precisely cooperating with the intermittent operation of the turntable to complete the clamping, processing, and testing processes of multiple coils simultaneously, realizing multi-station parallel operation.

[0023] The fluxing mechanism 5 performs the fluxing action before the electromagnetic coil is tinned and soldered; the fluxing mechanism 5 includes a fluxing base frame 51 installed above the top mounting plate of the frame 1, a fluxing support seat 52 installed on the top of the fluxing base frame 51, a flux tank 53 installed on the top of the fluxing support seat 52, and flux placed inside the flux tank 53.

[0024] Specifically, the flux tank 53 directly carries the flux. When the turntable moves the coil to this station, the coil pins can be precisely immersed in the flux in the tank, achieving uniform coating. The flux can remove the oxide layer on the pin surface and reduce the surface tension of the molten solder, creating conditions for a tight bond between the molten solder layer and the pins during subsequent soldering, reducing problems such as cold solder joints and false solder joints.

[0025] The tinning mechanism 6 performs the tinning action of the electromagnetic coil. The tinning mechanism 6 includes a tinning base plate 61 installed above the top mounting plate of the frame 1. Tin pot support blocks 62 and tinning support seats 63 are respectively installed on the top of the tinning base plate 61. Tin pot support plates 64 are installed on the top of each of the two tin pot support blocks 62. Tin pot heat insulation blocks 65 are installed at both ends of the top of the tin pot support plates 64. Tin pot assembly 66 is installed on the top of each of the two tin pot heat insulation blocks 65. The tin pot of the tin pot assembly 66 performs the action of melting the tin wire. A vertical tin scraping cylinder 67 is installed on the top side of one of the tinning support seats 63. A horizontal tin scraping cylinder 68 is installed at the telescopic top of the vertical tin scraping cylinder 67. A tin scraping heat insulation plate 69 is installed at the telescopic end of the horizontal tin scraping cylinder 68. A tin scraping heat insulation plate 69 is installed at the bottom of the tin scraping heat insulation plate 69. A solder scraper 610 is installed on top of the solder pot assembly 66. A solder feeding assembly 611 is installed on top of another soldering support 63. The solder feeding assembly 611 delivers solder wire into the solder pot of the solder pot assembly 66. A soldering detection cylinder 612 is installed on top of the last soldering support 63. A soldering detection rod 613 is installed on the telescopic top of the soldering detection cylinder 612. A detection needle 614 is installed on the bottom of one end of the soldering detection rod 613. The detection needle 614 detects the solder surface of the solder pot of the solder pot assembly 66. Soldering baffle cylinders 615 are installed on both sides of the solder pot support plate 64. Soldering baffles 616 are installed on the telescopic ends of the two soldering baffle cylinders 615. The soldering baffles 616 are located above the solder pot of the solder pot assembly 66.

[0026] Specifically, the solder pot assembly 66 melts the solder wire through heating. The solder pot insulation block 65 reduces heat transfer to the solder pot support plate 64 and the frame 1, preventing damage to surrounding components due to high temperatures. It also maintains a stable temperature inside the solder pot, ensuring the molten solder is in the optimal soldering state. The solder feeding assembly 611 automatically feeds the solder wire into the solder pot, eliminating the need for frequent manual replenishment. Combined with the continuous heating of the solder pot, it ensures a continuous supply of molten solder, preventing interruptions in soldering due to insufficient solder and improving production efficiency. The soldering detection cylinder 612 drives the detection needle 614 to detect the solder surface height in the solder pot in real time, providing timely feedback on the remaining molten solder. This allows the solder feeding assembly 611 to accurately replenish the solder, ensuring consistent soldering depth for each coil and preventing issues such as excessively thin or thick solder layers. The horizontal solder scraping cylinder 68 and the vertical solder scraping cylinder 67 work together to drive the solder scraper 610 to reciprocate across the surface of the molten solder, removing the oxide layer and slag from the surface of the molten solder. This ensures the purity of the molten solder, resulting in more uniform soldering of the coil leads and reducing defects such as cold solder joints and slag inclusions.

[0027] The bending mechanism 7 realizes the bending action of the electromagnetic coil after tinning; the bending mechanism 7 includes a bending base plate 71 installed above the top mounting plate of the frame 1, a bending horizontal servo linear module 72 installed at the top center of the bending base plate 71, a bending vertical servo linear module 73 installed at the drive end of the bending horizontal servo linear module 72, a bending U-connecting plate 74 installed at the drive end of the bending vertical servo linear module 73, and a bending U-shaped connecting plate 74 fixedly installed at both ends of the bending U-shaped connecting plate 74. The bending assembly 75 realizes the bending action of the electromagnetic coil. A bending upright 76 is installed on the top surface of the bending base plate 71, a bending telescopic cylinder 77 is installed on the top of the bending upright 76, a bending rear top plate 78 is installed at the telescopic end of the bending telescopic cylinder 77, and a rear top fixture 79 is provided on the surface of the bending rear top plate 78. The rear top fixture 79 contacts and presses the electromagnetic coil above the turntable mechanism 3 for positioning.

[0028] Specifically, the two sets of bending components 75 are symmetrically installed, which can simultaneously or independently complete the bending of the leads on both sides of the coil; the bending extension cylinder 77 drives the rear jig 79 to press the coil forward, forming a bidirectional positioning with the clamping mechanism on the turntable, firmly fixing the coil position and preventing the coil from shifting or shaking during bending; the servo module responds quickly and moves smoothly, and the bending action is precisely connected with the intermittent operation of the turntable. When the turntable sends the coil to the bending station, the positioning, bending and resetting actions can be completed quickly without affecting the overall production process.

[0029] The CCD inspection mechanism 8 performs the appearance inspection action after the bending operation; the CCD inspection mechanism 8 includes a CCD inspection base plate 81 installed above the top mounting plate of the frame 1. Inspection support plates 82 are installed at both ends of the top of the CCD inspection base plate 81. Inspection top plates 83 are installed on the top of the two inspection support plates 82. Inspection horizontal servo linear module 84 is installed on the top of the inspection top plate 83. CCD inspection mounting frame 85 is installed at the drive end of the inspection horizontal servo linear module 84. CCD inspection camera 86 is installed on the top side of the CCD inspection mounting frame 85. Adjustment guide rod 87 is slidably inserted into one end of the top of the CCD inspection mounting frame 85. The adjustment guide rod 87 is locked to the surface of the CCD inspection mounting frame 85 by screw limit. Inspection light source 88 is installed at the bottom end of the two adjustment guide rods 87.

[0030] Specifically, the detection horizontal servo linear module 84 drives the CCD inspection camera to move horizontally, which can cover the appearance inspection needs of different areas of the coil. With the camera's high-definition imaging capability, it can clearly capture various appearance defects such as pin bending angle deviation, uneven solder layer, deformation, and scratches. Two sets of adjustment guide rods 87 can independently adjust the height and position of the detection light source 88 and fix it with screws. The illumination angle can be flexibly adjusted according to the coil specifications and inspection focus, reducing shadow interference and improving the clarity and accuracy of defect identification.

[0031] The resistance detection mechanism 9 realizes the resistance detection action after the electromagnetic coil is tinned; the resistance detection mechanism 9 includes a resistance detection rod 91 installed above the top mounting plate of the frame 1, a resistance detection top plate 92 is fixedly installed at the top of each of the two resistance detection rods 91, a resistance voltage fixing plate 93 is installed on one end surface of the resistance detection top plate 92, a resistance detection horizontal cylinder 94 is installed at the bottom of the resistance voltage fixing plate 93, a resistance detection connecting plate 95 is installed at the telescopic end of the resistance detection horizontal cylinder 94, a resistance detection vertical cylinder 96 is installed at the bottom of the resistance detection connecting plate 95, a resistance detection mounting plate 97 is installed at the telescopic bottom end of the resistance detection vertical cylinder 96, a probe fixing block 98 is linearly arrayed at the bottom of the resistance detection mounting plate 97, and a resistance detection probe 99 is installed at the bottom of each of the multiple probe fixing blocks 98. An auxiliary telescopic cylinder 910 is also installed on the top of the resistance detection top plate 92. An auxiliary adjustment plate 911 is installed at the telescopic bottom of the auxiliary telescopic cylinder 910. An auxiliary guide rod 912 is installed at both ends of the auxiliary adjustment plate 911. The arc surface of the auxiliary guide rod 912 is slidably inserted into the surface of the resistance detection top plate 92. An air pipe connecting pressure plate 913 is installed at the bottom of the two auxiliary guide rods 912. An air pipe connector adapter plate 914 is sealed and connected to the bottom of the air pipe connecting pressure plate 913. The surface of the air pipe connector adapter plate 914 is pneumatically connected to multiple drive bidirectional cylinders 410 above the rotating turntable 33 through air pipes.

[0032] Specifically, the horizontal cylinder 94 and the vertical cylinder work together to precisely adjust the horizontal position and vertical height of the resistance detection probe 99, ensuring that the probe can accurately contact the detection point of the coil pin and avoid detection errors caused by contact deviation. Multiple probes are distributed in a linear array, which can simultaneously detect the resistance value of multiple pins of the coil, quickly determine the continuity of the coil, and whether there are electrical defects such as poor soldering. The detection efficiency is high and the results are reliable, preventing unqualified products from flowing into subsequent stages.

[0033] The auxiliary telescopic cylinder 910 drives the air pipe connecting pressure plate 913 to seal and connect with the air pipe connector adapter plate 914. It supplies air to the bidirectional cylinder on the rotating turntable 33 through the air pipe, realizing the dynamic pneumatic connection between the fixed pneumatic source and the rotating component. It can continuously provide power to the clamping mechanism without interrupting the turntable operation.

[0034] The unloading mechanism 10 performs the action of unloading qualified and unqualified products after electromagnetic coil detection. The unloading mechanism 10 includes an unloading base plate 101 installed above the top mounting plate of the frame 1. A conveying assembly 102 is installed on the top of the unloading base plate 101. The conveying assembly 102 is driven by a motor to transmit the movement of the conveyor belt. Unloading support seats 103 are installed at both ends of the top of the conveying assembly 102. Unloading cylinder fixing blocks 104 are rotatably connected to the top sides of the two unloading support seats 103 through bearings. One end of the unloading cylinder fixing block 104 passes through and extends to one side of the unloading support seat 103. An angle is also fixedly installed on the side of the unloading support seat 103. Angle drive cylinder 105 is provided. The telescopic end of angle drive cylinder 105 is hinged to one end of unloading cylinder fixing block 104 via a connecting rod. Unloading telescopic cylinder 106 is installed on one side of unloading cylinder fixing block 104. Unloading drive plate 107 is installed on the telescopic end of unloading telescopic cylinder 106. Unloading limit slide rods 108 are installed at both ends of unloading drive plate 107. The arc surfaces of the two unloading limit slide rods 108 are slidably inserted into the surface of unloading cylinder fixing block 104. Unloading rejection plate 109 is fixedly installed at the other end of the two unloading limit slide rods 108. Unloading pneumatic grippers 1010 are installed at both ends of the bottom of unloading rejection plate 109.

[0035] Specifically, the angle-driven cylinder 105 rotates the unloading cylinder fixing block 104 via a connecting rod, which can flexibly adjust the gripping angle of the unloading pneumatic gripper 1010. Combined with the unloading telescopic cylinder 106 driving the gripper to extend and retract, it can accurately grip the coils on the turntable, preventing gripping deviation or dropping. For qualified and unqualified products, the unloading position can be switched through the control system to achieve automatic sorting and unloading, completely eliminating the mixing problem that may occur during manual sorting and ensuring product batch purity. The conveying component 102 drives the conveyor belt to operate continuously via a motor, quickly transporting the unloaded coils to the designated area. Combined with the gripper's rapid gripping and releasing actions, it can efficiently connect the CCD detection and resistance detection processes without slowing down the overall production cycle.

[0036] This application's turntable mechanism 3, in conjunction with a ring-array distributed clamping and positioning mechanism, enables multi-station parallel operation, seamless connection between processes, stable cycle time, and continuous 24-hour operation, significantly increasing production capacity and substantially reducing reliance on manual labor and operational intensity. The turntable divider 32 ensures extremely high repeatability; the synchronous centering clamping mechanism ensures precise coil positioning; stable flux application and an automatic solder pot ensure uniform soldering; and the servo-module driven bending mechanism 7 achieves high precision and consistency in pin bending. The integrated CCD vision inspection and resistance detection mechanism 9 can comprehensively screen product appearance defects such as bending angles and solder layer quality, as well as electrical performance such as resistance and conductivity, online and non-destructively, achieving accurate quality judgment and data traceability, effectively preventing defective products from leaving the factory. Multiple mechanisms, such as the clamping slider and the detection light source 88, are designed with adjustable links, allowing the equipment to quickly adapt to the production needs of electromagnetic coils of different specifications, enhancing the flexibility of the production line. The frame cover 2 ensures operational safety, and the solid structural foundation and mature pneumatic and mechanical transmission solutions ensure the stability and durability of the equipment under long-term high-load operation.

[0037] Working principle: The operator manually places the electromagnetic coil onto the pneumatic clamp 46 of the loading and clamping positioning mechanism 4 on the turntable. During the fluxing operation, the bidirectional cylinder 410 is driven to move, and through the gear 47-rack 49 linkage mechanism, the two pneumatic clamps are synchronously driven to rotate, so that the end of the electromagnetic coil that needs to be coated with flux is rotated to a vertical position.

[0038] The turntable motor 31 starts, driving the turntable divider 32. The divider converts the continuous rotation of the motor into precise intermittent indexing motion, causing the rotating turntable 33 to rotate by a fixed angle each time, such as 90°, 120°, etc., depending on the number of workstations, accurately transporting the fixture holding the coil to the next workstation. The divider provides rigid locking during the stationary period to ensure that there is no shaking during processing.

[0039] The coil is transported to station 5 of the fluxing mechanism by a turntable. At this time, the coil leads move downwards and are immersed in flux tank 53 containing flux to ensure that the lead surface is evenly coated with a layer of flux to remove the oxide layer and improve the subsequent soldering effect.

[0040] The coil enters station 6 of the soldering mechanism. First, the soldering detection cylinder 612 drives the detection pin 614 to descend, detecting the level of molten solder in the solder pot and ensuring a stable level. The solder feeding assembly 611 automatically replenishes solder wire into the solder pot. The vertical and horizontal cylinders of the solder scraping mechanism drive the solder scraper 610 to scrape away oxide residue from the surface of the molten solder. Subsequently, the coil leads are immersed in the pure molten solder, completing the soldering process. The soldering baffle cylinder 615 can drive the baffle to isolate the solder pot when needed, reducing heat loss and oxidation.

[0041] The tinned coil enters the bending mechanism at station 7. The bending extension cylinder 77 drives the rear jig 79 forward, cooperating with the clamping mechanism on the turntable to firmly clamp and position the coil from both ends. Subsequently, the bending assembly 75, driven by the servo linear module, moves forward and performs a precise bending action, bending the coil leads into a predetermined shape.

[0042] At station 8 of the CCD inspection mechanism, the horizontal servo linear module 84 drives the CCD inspection camera 86 to move above the coil. With the assistance of an adjustable light source, it takes high-definition pictures of the bending angle, solder joint appearance, etc., and the image processing system automatically determines whether there are any appearance defects. At station 9 of the resistance inspection mechanism, the resistance inspection cylinder group drives the array of inspection probes to descend and reliably contact the coil pins, automatically measuring the resistance value and determining whether the electrical performance is qualified.

[0043] Finally, the coil is transferred to the unloading mechanism 10. The control system issues a command based on the previous detection results. The angle drive cylinder 105 cooperates with the unloading telescopic cylinder 106 to drive the unloading pneumatic gripper 1010 to grab the coil. For qualified and unqualified products, by changing the release position or direction of the gripper, they are placed in different areas of the conveyor belt or different collection boxes, achieving automatic sorting.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An electromagnetic coil tinning machine, comprising a frame (1), characterized in that: The top of the frame (1) is equipped with a frame cover (2), and the top of the frame (1) is also provided with a turntable mechanism (3), a feeding clamping and positioning mechanism (4), a soldering mechanism (5), a tinning mechanism (6), a bending leg mechanism (7), a CCD detection mechanism (8), a resistance detection mechanism (9), and a unloading mechanism (10). The turntable mechanism (3) enables the electromagnetic coil to switch and adjust its circumferential direction during the tinning operation; The feeding and clamping positioning mechanism (4) includes the action of clamping and positioning the electromagnetic coil; The soldering assist mechanism (5) performs the soldering assist action before the electromagnetic coil is tinned and soldered; The tinning mechanism (6) performs the tinning action on the electromagnetic coil; The bending mechanism (7) realizes the bending action of the electromagnetic coil after it is tinned; The CCD inspection mechanism (8) performs the appearance inspection action after the bending operation; The resistance detection mechanism (9) performs the action of resistance detection after the electromagnetic coil is tinned; The feeding mechanism (10) performs the action of feeding qualified and unqualified products after electromagnetic coil detection.

2. The electromagnetic coil tinning machine according to claim 1, characterized in that: The turntable mechanism (3) includes a turntable motor (31) and a turntable divider (32) mounted on the top mounting plate of the frame (1). The output end of the turntable motor (31) is mounted on the input end of the turntable divider (32), and a rotating turntable (33) is mounted on the output end of the turntable divider (32). Multiple loading clamping and positioning mechanisms (4) are arranged in a circular array on the top of the rotating turntable (33). Each loading clamping and positioning mechanism (4) includes a clamping and positioning seat (41) installed on the top of the rotating turntable (33). A clamping and positioning guide rail (42) is installed on the surface of the clamping and positioning seat (41). A clamping and positioning slider (43) is slidably inserted into the surface of the clamping and positioning guide rail (42). The clamping and positioning slider (43) is locked to the clamping and positioning guide rail (42) by screws. A clamping and positioning connecting plate (44) is installed on the surface of the clamping and positioning connecting plate (44). A U-shaped clamping seat (45) is installed on the surface of the clamping and positioning connecting plate (44). A clamping pneumatic clamp is rotatably connected to one side of the U-shaped clamping seat (45) through a bearing. The hand (46) and the electromagnetic coil are manually installed on the surface of the clamping pneumatic clamp (46). The clamping pneumatic clamp (46) is located on the surface inside the U-shaped clamping seat (45) and a gear (47) is also installed. A drive slide (48) is installed on the top of the U-shaped clamping seat (45). A rack (49) is slidably inserted into the inner wall of the drive slide (48). The tooth grooves on both sides of the bottom end of the rack (49) mesh with the teeth of the two gears (47) below. A drive double-acting cylinder (410) is installed on the top of the drive slide (48). An L-shaped connecting plate (411) is installed on the two telescopic ends of the drive double-acting cylinder (410). The bottom of the two L-shaped connecting plates (411) is fixedly installed to the two ends of the rack (49).

3. The electromagnetic coil tinning machine according to claim 1, characterized in that: The fluxing mechanism (5) includes a fluxing bottom frame (51) installed above the top mounting plate of the frame (1), a fluxing support base (52) is installed on the top of the fluxing bottom frame (51), a flux tank (53) is installed on the top of the fluxing support base (52), and the flux is placed inside the flux tank (53). The tinning mechanism (6) includes a tinning base plate (61) mounted on the top mounting plate of the frame (1). Tinning base plate (61) has a tin furnace support block (62) and a tinning support seat (63) mounted on its top. Tin furnace support plates (64) are mounted on the top of each of the two tin furnace support blocks (62). Tin furnace heat insulation blocks (65) are mounted at both ends of the top of each of the tin furnace support plates (64). Tin furnace assemblies (66) are mounted on the top of each of the two tin furnace heat insulation blocks (65). The tin furnace assembly (66) melts the tin wire. A vertical tin scraping cylinder (67) is mounted on the top side of one of the tinning support seats (63). A horizontal tin scraping cylinder (68) is mounted on the telescopic top of the vertical tin scraping cylinder (67). A tin scraping heat insulation plate (69) is mounted on the telescopic end of the horizontal tin scraping cylinder (68). A tin scraping blade (610) is mounted on the bottom end of the tin scraping heat insulation plate (69). The solder scraper (610) is located on the top of the solder pot assembly (66). A solder feeding assembly (611) is installed on the top of another soldering support (63). The solder feeding assembly (611) delivers solder wire into the solder pot of the solder pot assembly (66). A soldering detection cylinder (612) is installed on the top of the last soldering support (63). A soldering detection rod (613) is installed on the telescopic top of the soldering detection cylinder (612). A detection needle (614) is installed at the bottom of one end of the soldering detection rod (613). The detection needle (614) detects the solder surface of the solder pot of the solder pot assembly (66). Soldering baffle cylinders (615) are installed on both sides of the solder pot support plate (64). Soldering baffles (616) are installed on the telescopic ends of the two soldering baffle cylinders (615). The soldering baffles (616) are located above the solder pot of the solder pot assembly (66).

4. The electromagnetic coil tinning machine according to claim 1, characterized in that: The bending mechanism (7) includes a bending base plate (71) mounted above the top mounting plate of the frame (1). A bending horizontal servo linear module (72) is mounted at the top center of the bending base plate (71). A bending vertical servo linear module (73) is mounted at the drive end of the bending horizontal servo linear module (72). A bending U-connecting plate (74) is mounted at the drive end of the bending vertical servo linear module (73). Bending components are fixedly mounted at both ends of the U-shaped bending U-connecting plate (74). 75), the bent foot assembly (75) realizes the bending action of the electromagnetic coil. A bent foot upright (76) is installed on the top end surface of the bent foot base plate (71). A bent foot telescopic cylinder (77) is installed on the top of the bent foot upright (76). A bent foot rear top plate (78) is installed on the telescopic end of the bent foot telescopic cylinder (77). A rear top fixture (79) is provided on the surface of the bent foot rear top plate (78). The rear top fixture (79) contacts and presses the electromagnetic coil above the turntable mechanism (3) for positioning.

5. The electromagnetic coil tinning machine according to claim 1, characterized in that: The CCD detection mechanism (8) includes a CCD detection base plate (81) installed above the top mounting plate of the frame (1). Detection support plates (82) are installed at both ends of the top of the CCD detection base plate (81). Detection top plates (83) are installed on the top of the two detection support plates (82). A detection horizontal servo linear module (84) is installed on the top of the detection top plate (83). A CCD detection mounting frame (85) is installed at the drive end of the detection horizontal servo linear module (84). A CCD detection camera (86) is installed on the top side of the CCD detection mounting frame (85). An adjustment guide rod (87) is slidably inserted into one end of the top of the CCD detection mounting frame (85). The adjustment guide rod (87) is locked to the surface of the CCD detection mounting frame (85) by screw limit. Detection light sources (88) are installed at the bottom ends of the two adjustment guide rods (87).

6. The electromagnetic coil tinning machine according to claim 2, characterized in that: The resistance detection mechanism (9) includes a resistance detection rod (91) mounted on the top mounting plate of the frame (1). A resistance detection top plate (92) is fixedly mounted on the top of each of the two resistance detection rods (91). A resistance voltage fixing plate (93) is mounted on one end surface of the resistance detection top plate (92). A resistance detection horizontal cylinder (94) is mounted on the bottom of the resistance voltage fixing plate (93). A resistance detection connecting plate (95) is mounted on the telescopic end of the resistance detection horizontal cylinder (94). A resistance detection vertical cylinder (96) is mounted on the bottom of the resistance detection connecting plate (95). A resistance detection mounting plate (97) is mounted on the telescopic bottom end of the resistance detection vertical cylinder (96). A probe fixing block (98) is linearly arrayed on the bottom of the resistance detection mounting plate (97). A resistance detection probe (99) is mounted on the bottom of each of the multiple probe fixing blocks (98). An auxiliary telescopic cylinder (910) is also installed on the top of the resistance detection top plate (92). An auxiliary adjustment plate (911) is installed at the telescopic bottom end of the auxiliary telescopic cylinder (910). An auxiliary guide rod (912) is installed at both ends of the auxiliary adjustment plate (911). The arc surface of the auxiliary guide rod (912) is slidably inserted into the surface of the resistance detection top plate (92). An air pipe connection pressure plate (913) is installed at the bottom end of the two auxiliary guide rods (912). An air pipe connector adapter plate (914) is sealed and transferred to the bottom of the air pipe connection pressure plate (913). The surface of the air pipe connector adapter plate (914) is pneumatically connected to multiple drive bidirectional cylinders (410) above the rotating turntable (33) through an air pipe.

7. The electromagnetic coil tinning machine according to claim 1, characterized in that: The feeding mechanism (10) includes a feeding base plate (101) mounted on the top mounting plate of the frame (1). A conveying assembly (102) is mounted on the top of the feeding base plate (101). The conveying assembly (102) is driven by a motor to transmit motion via a conveyor belt. Feeding support seats (103) are mounted on both ends of the top of the conveying assembly (102). Feeding cylinder fixing blocks (104) are rotatably connected to the top sides of the two feeding support seats (103) via bearings. One end of the feeding cylinder fixing block (104) passes through and extends to one side of the feeding support seat (103). An angle driving cylinder (105) is also fixedly mounted on the side of the feeding support seat (103). The telescopic end of the cylinder (105) is hinged to one end of the feeding cylinder fixing block (104) via a connecting rod. A feeding telescopic cylinder (106) is installed on one side of the feeding cylinder fixing block (104). A feeding drive plate (107) is installed on the telescopic end of the feeding telescopic cylinder (106). Feeding limit slide rods (108) are installed at both ends of the feeding drive plate (107). The arc surfaces of the two feeding limit slide rods (108) are slidably inserted into the surface of the feeding cylinder fixing block (104). A feeding rejection plate (109) is fixedly installed at the other end of the two feeding limit slide rods (108). Feeding pneumatic grippers (1010) are installed at both ends of the bottom of the feeding rejection plate (109).

Images