A glue filling device for direct current contactor production

Abstract

This invention relates to the technical field of DC contactor production, and in particular to a glue-dispensing device for DC contactor production. The device includes a glue-dispensing machine, a three-axis robotic arm installed inside the glue-dispensing machine, and a tray for loading DC contactors. The glue-dispensing machine is equipped with a swing-sweeping air assembly, which is used to blow-dry and clean the DC contactors before glue dispensing. The swing-sweeping air assembly includes a push frame and an arc-shaped push rod. Arc-shaped push rods are fixedly installed at both ends of the push frame via arc-shaped rods, and arc-shaped push blocks are movably connected to the arc-shaped push rods. This invention, through the cooperation of a locking support assembly and a swing-sweeping air assembly, achieves comprehensive and stable clamping and thorough cleaning, thus ensuring process quality. The swing-sweeping airflow covers a larger lateral area, and through continuous reciprocating motion, ensures that each workpiece surface is swept multiple times and from multiple angles by the airflow, significantly improving the uniformity and thoroughness of cleaning.

Description

Technical Field

[0001] This invention relates to the technical field of DC contactor manufacturing, and in particular to a glue-drinking device for DC contactor manufacturing. Background Technology

[0002] In the high-quality potting production of DC contactors, the high standard of workpiece cleaning and the precise and stable fixation of the carrier are two fundamental technological challenges. The potting process of DC contactors is mainly used to achieve the sealing of the coil and the shell, the insulation and fixation of internal components, heat dissipation, and dust and moisture protection. The uniformity of the adhesive, the absence of voids in the filling, and the precise coverage directly determine the electrical safety performance and long-term service life of the product. However, the quality of this core process is highly dependent on the cleaning process during potting.

[0003] Traditional cleaning methods often employ air nozzles with fixed directions and angles for blowing, resulting in rigid airflow coverage that cannot adapt to workpiece arrangement. This easily creates cleaning dead zones on complex contactor surfaces and densely arranged tray arrays, leading to dust, electrostatically adsorbed microparticles, and potential moisture being encapsulated internally after adhesive application. This severely affects adhesive adhesion and dielectric strength. Increasing air pressure to enhance cleaning power can easily cause displacement of small workpieces, even blowing particles into more precise contact gaps or coil gaps, causing potential malfunctions. Although manual spot checks or auxiliary wiping have been introduced, these methods are inefficient, lack standardized practices, and may introduce secondary contamination such as fibers or oil stains. They cannot meet the stringent requirements of automated production lines for cycle time and consistency. Furthermore, traditional tray positioning methods lack precision and cannot effectively constrain micro-swaying under vibration and airflow, leading to defects such as adhesive path deviation and uneven adhesive distribution. These defects severely affect product consistency and reliability, reducing the quality of DC contactor adhesive application. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, the present invention provides a glue-drinking device for the production of DC contactors.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a glue-dispensing device for DC contactor production, comprising a glue-dispensing machine, a three-axis manipulator installed inside the glue-dispensing machine, and a tray for loading DC contactors. The glue-dispensing machine is provided with a swing-sweeping air assembly, which is used to blow dry and clean the DC contactors before glue dispensing.

[0006] The oscillating air-sweeping assembly includes a push frame and an arc-shaped push rod. Arc-shaped push rods are fixedly installed at both ends of the push frame via arc-shaped rods, and arc-shaped push blocks are movably connected to the arc-shaped push rods.

[0007] The push frame is equipped with a fixed turbulence component, which disturbs and disperses the gas ejected by the swing sweeping component, and disperses, dries and cleans the DC contactors around the tray. The fixed turbulence component includes an air supply duct and an arc-shaped cover plate.

[0008] The dispensing machine is also equipped with a fixed-point pushing component, which is used to limit the position of the tray around the tray. The fixed-point pushing component includes a support base plate and a support rotating rod.

[0009] The support rod is also equipped with a locking support component, which is used to lock and limit the tray, and to limit and clamp the tray. The locking support component includes a rotating gear and a fixed rack.

[0010] As a preferred embodiment of the present invention, the three-axis manipulator drives the dispensing head to move on the top of the support tray. The dispensing machine is equipped with a material tank containing adhesive for supplying the dispensing head. The swinging air-sweeping assembly also includes a loop swing rod. A push frame is fixedly installed inside the dispensing machine via a base plate, and a rotary motor is fixedly installed on the top of the dispensing machine. A rotating plate is fixedly installed at the output end of the rotary motor, and a rotating column is fixedly installed on the rotating plate. The size of the rotating column matches that of the loop swing rod, and the rotating column moves within the loop swing rod. A movable cleaning seat is fixedly installed on the side of the arc-shaped push block near the support tray. Several first nozzles are evenly installed on the side of the movable cleaning seat away from the push frame, and a telescopic conduit is connected to the top of the movable cleaning seat.

[0011] An arc-shaped moving block is slidably arranged inside the push frame. A T-shaped slider is fixedly installed on the top of the arc-shaped moving block. The top of the T-shaped slider is fixedly installed on the bottom of the spiral swing rod. A push groove is opened on the top of the push frame. The size of the push groove matches the T-shaped slider, and the T-shaped slider moves in the push groove. A spiral push block is movably sleeved at the bottom of the spiral swing rod. A connecting rod is fixedly installed on the side of the spiral push block near the arc-shaped push rod. The connecting rod is movably connected to the arc-shaped push block.

[0012] As a preferred technical solution of the present invention, the dispensing machine is equipped with an air supply tube fixedly installed inside by a side plate. The fixed turbulence assembly also includes a fixed spraying seat fixedly installed at both ends of the arc-shaped push rod. The fixed spraying seat has a number of second nozzles evenly installed on the side near the support tray. The top of the fixed spraying seat is fixedly installed with an arc-shaped cover plate, and the arc-shaped cover plate is evenly provided with a number of arc-shaped slots.

[0013] Piston rods are fixedly installed at both ends of the arc-shaped moving block, and the piston rods extend through into the interior of the air supply duct. A piston plate is movably installed inside the air supply duct, and the piston plate is fixedly installed with the piston rod. An air inlet pipe and an air outlet pipe are fixedly installed at the end of the air supply duct away from the push frame, and the air outlet pipe is connected to the fixed spray seat and the telescopic guide pipe.

[0014] As a preferred embodiment of the present invention, the top of the tray is evenly provided with a plurality of placement slots, and a fixed suction cup is fixedly installed at the bottom of each placement slot. The fixed suction cups fix the DC contactor. The fixed-point pushing assembly also includes a support block that is movable on the top of the support base plate. First swing arms are fixedly installed at both ends of the support rotating rod. The first swing arms are movably connected to the drive arm. A triangular fixing plate is fixedly installed on the top of the support base plate. A triangular swing arm is movably connected to the top of the triangular fixing plate, and the triangular swing arm is movably connected to the drive arm. A fixed sliding groove is provided on the top of the support base plate. A fixed slider is slidably connected in the fixed sliding groove, and the support block is fixedly installed on the top of the fixed slider.

[0015] The bottom of the triangular swing arm is provided with an arc-shaped swing groove. Both ends of the support block are fixedly installed with arc-shaped drive rods, and the size of the arc-shaped drive rods matches the arc-shaped swing grooves. The arc-shaped drive rods move in the arc-shaped swing grooves. An arc-shaped fixed-point rod is fixedly installed on the side of the support block away from the first swing arm. A servo motor is also fixedly installed inside the dispensing machine, and the support rotating rod is fixedly installed at the output end of the servo motor.

[0016] As a preferred embodiment of the present invention, the tray has arc-shaped fixed holes on both sides, the arc-shaped fixed holes are matched in size with the arc-shaped fixed rods, and the arc-shaped fixed rods move inside the arc-shaped fixed holes. The locking support assembly also includes an arc-shaped locking rod. Rotary gears are fixedly installed at the middle of the support rods. A limiting base plate is fixedly installed inside the dispensing machine. A limiting groove is opened on the top of the limiting base plate. A limiting slider is slidably connected in the limiting groove. A fixing rack is fixedly installed on the top of the limiting slider, and the fixing rack is movably meshed with the rotating gears.

[0017] Each of the fixed racks has an arc-shaped locking rod fixedly installed at one end near the support plate. Arc-shaped locking grooves matching the size of the arc-shaped locking rods are opened at the center of both sides of the support plate, and the arc-shaped locking rods move in the arc-shaped locking grooves.

[0018] Compared with the prior art, the beneficial effects that this invention can achieve are:

[0019] In this invention, the rotational motion of the rotary motor in the oscillating sweeping assembly is converted into the regular oscillation of the cleaning nozzle, achieving dynamic sweeping cleaning of the workpiece surface. This allows the high-pressure airflow to repeatedly cover the entire tray area in a fan-shaped pattern. Compared to a fixed nozzle, this significantly improves the uniformity and thoroughness of cleaning. Furthermore, its fully automatic operation completely replaces traditional manual wiping or blowing, ensuring consistency and high efficiency in the pretreatment process. This provides a stable and reliable clean substrate for subsequent adhesive application. Compared to the cleaning dead zones and airflow blind spots present with fixed nozzles, this invention achieves fan-shaped reciprocating coverage through oscillating sweeping, significantly improving uniformity and eliminating dead zones. Compared to manual wiping or blowing, automated operation ensures high consistency and efficiency in the pretreatment process, completely eliminating human error.

[0020] In this invention, the reciprocating kinetic energy of the core moving component of the swing-type air-sweeping assembly is used to drive the piston air pump, generating auxiliary cleaning airflow without the need for an additional power source. This achieves energy reuse and system simplification. The fixed turbulence assembly, through its unique arc-shaped cover slot design, disperses the concentrated air column into a gentle and widely covering diffused turbulence. This airflow effectively covers and cleans the edge area of ​​the tray, forming a dynamic-static complementarity with the main air-sweeping assembly, further eliminating cleaning blind spots. At the same time, its gentle characteristics avoid impacting or interfering with precision workpieces or fixed components. Compared with the traditional method that requires an additional air pump or air source, this invention utilizes the reciprocating kinetic energy of the swing-type assembly to drive the piston air pump, achieving energy reuse and simplifying the system structure. Meanwhile, the fixed turbulence assembly, through its slot design, transforms the concentrated air column into a gentle diffused turbulence, avoiding the impact of direct airflow on precision components and effectively covering edge blind spots.

[0021] In this invention, a high-precision, high-rigidity workpiece positioning and clamping system is constructed through the synergistic action of the fixed-point pushing component and the locking support component. The multi-stage linkage mechanism driven by the servo motor can accurately convert rotational motion into the linear insertion action of the arc-shaped fixed-point rod, realizing fast and accurate automated positioning of the pallet with high repeatability and completely eliminating human placement errors. Subsequently, through the gear and rack mechanism driven by the same power source, the locking rod completes the rigid clamping of the pallet from another direction, realizing a dual constraint mechanism of positioning first and then locking. This ensures that the pallet is completely fixed in both horizontal and rotational degrees of freedom, forming a stable process benchmark. Compared with the large errors and insufficient rigidity of manual placement or simple stop block positioning, this invention uses a servo motor-driven multi-stage linkage and gear and rack mechanism to achieve dual constraints of positioning first and then locking, with repeatability down to the millimeter level, and ensures that both horizontal and rotational degrees of freedom are completely fixed, forming a stable process benchmark.

[0022] In this invention, the combination of the locking support component and the swing-sweeping component achieves comprehensive and stable clamping and thorough cleaning, ensuring process quality. After the tray is rigidly locked, the coordinate relationship between the workpiece array on it and the three-axis robot remains unchanged throughout the dispensing process, fundamentally eliminating dispensing path deviations caused by vibration. Combined with the clean and dry surface provided by the previous process, the dispensing position, shape, and sealing effect of each batch of products are highly repeatable, significantly improving the overall consistency and long-term reliability of the products. This is particularly suitable for applications with stringent safety requirements. Compared to path deviations caused by workpiece vibration or incomplete cleaning during traditional dispensing processes, this invention, through rigid locking and thorough cleaning, ensures a constant coordinate relationship between the workpiece and the robot, and highly repeatable dispensing position, shape, and sealing effect, greatly improving product consistency and long-term reliability.

[0023] In this invention, the oscillating airflow allows the airflow to cover a larger lateral area, and through continuous reciprocating motion, it ensures that each workpiece surface is swept multiple times and from multiple angles by the airflow. This avoids cleaning shadows or dead corners that may be caused by a fixed airflow direction, significantly improving the uniformity and thoroughness of cleaning. The oscillating airflow simulates the action of manual "fanning," and the airflow has a more "peeling" effect on the surface, which can more effectively blow away light debris and dust. At the same time, the dynamic airflow helps to break the static boundary layer of the air on the workpiece surface, accelerates moisture evaporation, and has higher drying efficiency, providing a stable and reliable drying substrate for subsequent glue application. Compared with a fixed airflow nozzle, the oscillating airflow achieves multiple multi-angle sweeping through reciprocating motion, eliminating cleaning shadows, and the dynamic airflow breaks the static boundary layer of the surface, accelerating moisture evaporation and having higher drying efficiency. The airflow peeling effect that simulates manual fanning can more effectively remove light debris.

[0024] In this invention, the fixed turbulence assembly mechanically couples the cleaning air source generator with the drive mechanism of the oscillating sweeping assembly. No additional motor or air pump is needed to specifically generate this auxiliary airflow; the air pump can be driven solely by the system's existing reciprocating mechanical energy. This greatly simplifies the equipment structure and reduces manufacturing costs and energy consumption. The oscillating sweeping assembly provides a dynamic, directional, concentrated airflow, effectively removing surface deposits; while the fixed turbulence assembly provides a static, continuously spreading diffused airflow, effectively covering edge dead zones and settling fine dust. The two, one dynamic and one static, one sweeping and one covering, form a perfect complementary cleaning strategy, ensuring that all workpieces on the tray from the center to the edge are effectively processed, eliminating cleaning blind spots. The curved cover plate with slotted design transforms the strong, direct airflow that could potentially impact or interfere with precision electronic components or pre-applied semi-finished products into a gentle, diffused airflow. This not only avoids the risk of workpiece displacement or tiny particles being blown into deeper crevices due to excessive airflow, but also makes the drying process more uniform and gradual, preventing problems caused by rapid localized surface water loss. It is more suitable for the environmental requirements of precision electronic manufacturing. Traditional multi-air source cleaning systems are complex, energy-intensive, and the strong, direct airflow can easily damage precision workpieces. This invention drives the air pump through mechanical coupling, requiring no additional power, and adopts a dynamic-static complementary strategy: the oscillating airflow directionally removes adhering substances, while the diffused turbulence covers the edges, providing a gentle and thorough experience, perfectly suited to the precision manufacturing environment.

[0025] In this invention, the positioning process is fully automated and programmed using a servo motor. Compared to manual placement or simple stopper limiting, its repeatability can reach millimeter or even sub-millimeter level, completely eliminating positional deviations caused by inconsistent human operation. This lays the most solid foundation for the consistency of the subsequent glue-filling path and significantly improves the quality stability of mass production. The positioning method, which involves inserting arc-shaped rods from both sides simultaneously, combined with the fixed suction cup at the bottom of the tray, forms a stable constraint of "two-point positioning on the side and suction on the bottom." This constraint method is much more reliable than single-sided pushing or positioning based solely on friction. It can effectively resist slight vibrations or lateral forces that may occur during cleaning (sweeping) or glue-filling head movement, ensuring that the workpiece tray remains stationary throughout the entire processing, thereby guaranteeing the absolute accuracy of the glue-filling trajectory. Compared to the low accuracy and poor vibration resistance of manual placement or single-sided limiting, this invention achieves sub-millimeter repeatability positioning through a servo motor. Combined with the simultaneous insertion of positioning rods from both sides and suction on the bottom, it forms a stable constraint of "two-point positioning + suction on the bottom," effectively resisting vibrations and lateral forces during cleaning and glue-filling processes, ensuring absolute trajectory accuracy. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2This is a schematic diagram of the dispensing machine structure of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of the three-axis manipulator of the present invention;

[0029] Figure 4 This is a schematic diagram of the pallet feeding structure of the present invention;

[0030] Figure 5 This is a schematic diagram of the structure of the pallet of the present invention;

[0031] Figure 6 This is a schematic diagram of the air supply duct of the present invention;

[0032] Figure 7 This is a schematic diagram of the structure of the spiral swing rod of the present invention;

[0033] Figure 8 This is a schematic diagram of the arc-shaped moving block of the present invention;

[0034] Figure 9 This is a schematic diagram of the structure of the supporting base plate of the present invention;

[0035] Figure 10 This is a schematic diagram of the fixed rack structure of the present invention.

[0036] The components include: 10. Dispensing machine; 11. Three-axis robot; 12. Dispensing tank; 13. Dispensing head; 14. Support tray; 15. Placement slot; 16. Fixed suction cup; 17. Arc-shaped fixing hole; 18. Arc-shaped locking slot; 19. Arc-shaped fixing rod; 20. Push frame; 21. Arc-shaped rod; 22. Arc-shaped push rod; 23. Arc-shaped push block; 24. Movable cleaning seat; 25. First nozzle; 26. Telescopic guide tube; 27. Push chute; 28. Base plate; 30. Rotary motor; 31. Rotating plate; 32. Rotating column; 33. U-shaped swing rod; 34. U-shaped push block; 35. Connecting rod; 40. Fixed spray seat; 41. Second nozzle; 4 2. Arc-shaped cover plate; 43. Arc-shaped slot; 50. Air supply duct; 51. Side plate; 52. Arc-shaped moving block; 53. Piston rod; 54. Piston plate; 55. T-shaped slider; 56. Air inlet pipe; 57. Air outlet pipe; 60. Support base plate; 61. Triangular fixing plate; 62. Triangular swing arm; 63. Drive arm; 64. First swing arm; 65. Arc-shaped swing groove; 66. Fixed slide groove; 67. Fixed slider; 68. Support block; 69. Arc-shaped drive rod; 70. Servo motor; 71. Limiting base plate; 72. Limiting slide groove; 73. Limiting slider; 74. Fixed rack; 75. Rotary gear; 76. Arc-shaped locking rod; 77. Support rotating rod. Detailed Implementation

[0037] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0038] Example: Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, a dispensing device for DC contactor production includes a dispensing machine 10, a three-axis robot 11 installed inside the dispensing machine 10, and a tray 14 for loading DC contactors. The dispensing machine 10 has a swing-sweeping assembly inside, used to dry and clean the DC contactors before dispensing. The swing-sweeping assembly includes a push frame 20 and an arc-shaped push rod 22. The push frame 20 has arc-shaped push rods 22 fixedly mounted at both ends via arc-shaped rods 21. Arc-shaped push blocks 23 are movably connected to the arc-shaped push rods 22. The three-axis robot 11 drives the dispensing head 13 to move on top of the tray 14. A reagent tank 12 is installed on the dispensing machine 10, and the reagent tank 12 contains a dispensing container. The head 13 supplies the adhesive liquid. The swing sweeping assembly also includes a loop swing rod 33. The dispensing machine 10 is fixedly installed with a push frame 20 through a base plate 28. A rotary motor 30 is fixedly installed on the top of the dispensing machine 10. A rotating plate 31 is fixedly installed at the output end of the rotary motor 30. A rotating column 32 is fixedly installed on the rotating plate 31. The rotating column 32 is matched in size with the loop swing rod 33. The rotating column 32 moves inside the loop swing rod 33. A movable cleaning seat 24 is fixedly installed on the side of the arc-shaped push block 23 near the support tray 14. Several first nozzles 25 are evenly installed on the side of the movable cleaning seat 24 away from the push frame 20. A telescopic conduit 26 is connected to the top of the movable cleaning seat 24.

[0039] See Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 8An arc-shaped moving block 52 is slidably arranged inside the push frame 20. A T-shaped slider 55 is fixedly installed on the top of the arc-shaped moving block 52. The top of the T-shaped slider 55 is fixedly installed on the bottom of the loop swing rod 33. A push groove 27 is opened on the top of the push frame 20. The push groove 27 matches the size of the T-shaped slider 55, and the T-shaped slider 55 moves in the push groove 27. A loop push block 34 is movably sleeved at the bottom of the loop swing rod 33. A connecting rod 35 is fixedly installed on the side of the loop push block 34 near the arc push rod 22. The connecting rod 35 is movably connected to the arc push block 23.

[0040] See Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 8 After the rotary motor 30 starts, its output shaft drives the rotating plate 31 and the rotating column 32 fixed to the edge of the rotating plate 31 to perform uniform circular motion. The cylindrical structure of the rotating column 32 is precisely embedded inside a rectangular loop-shaped swing rod 33 frame. When the rotating column 32 moves in a circular motion with the motor, its cylindrical surface will periodically contact the inner long side of the loop-shaped swing rod 33 frame and apply a thrust. Since the loop-shaped swing rod 33 itself is constrained by the structure below, the circular motion of the rotating column 32 is converted into the reciprocating linear motion of the loop-shaped swing rod 33 along its length in the horizontal plane. Linear motion is directly transmitted to the T-shaped slider 55 through a rigid connection at its bottom. The vertical part of the T-shaped slider 55 is fixed to the bottom of the boom 33, and its protruding horizontal part, i.e. the top of the "T", is embedded in the push groove 27 specially opened at the top of the push frame 20. The push groove 27 plays a precise guiding and limiting role for the movement of the T-shaped slider 55, ensuring that the T-shaped slider 55 and all its subsequent components can only move strictly along the straight trajectory specified by the groove. The arc-shaped motion block 52, which is fixedly connected to the bottom of the T-shaped slider 55, also slides precisely left and right in the channel inside the push frame 20.

[0041] See Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 8To convert the linear motion back into the desired oscillation, the mechanism includes a loop-shaped push block 34, which is movably fitted onto the bottom of the loop-shaped oscillating rod 33. On one side of the loop-shaped push block 34, it is movably connected to the arc-shaped push block 23 via a connecting rod 35. The arc-shaped push block 23 is in turn movably connected to the fixed arc-shaped push rod 22. When the loop-shaped oscillating rod 33 drives the T-shaped slider 55 and the arc-shaped moving block 52 in linear motion, the mechanism linked to the arc-shaped moving block 52 drives the loop-shaped push block 34 to slide on the loop-shaped oscillating rod 33. The linear sliding of the loop-shaped push block 34 pushes the arc-shaped push block 23 via the connecting rod 35. Since one end of the arc-shaped push block 23 is restricted to sliding on the arc-shaped push rod 22, and the other end is connected to the movable cleaning seat 24... The fixed position forces the movable cleaning seat 24 to reciprocate at a certain angle around the connection point with the arc-shaped push rod 22. Ultimately, the multiple first nozzles 25 fixedly installed on the movable cleaning seat 24 swing with the swing of the cleaning seat. These nozzles are connected to the air outlet pipe 57 of the air supply duct 50 through the telescopic conduit 26, continuously spraying dry and clean compressed air. Thus, the originally static airflow becomes a dynamic sweeping fan-shaped air curtain, which blows evenly and sequentially over the surface of each DC contactor on the tray 14 and its loading slot, effectively removing dust, electrostatically adsorbed microparticles, and any moisture that may be present. The air inlet pipe 56 is connected to a drying and purification device to ensure that the air entering the air supply duct 50 is dry and pure, providing a guarantee for subsequent cleaning.

[0042] See Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 8 The push frame 20 is equipped with a fixed turbulence component, which disturbs and disperses the gas sprayed by the swing sweeping component, and disperses, dries and cleans the DC contactors around the tray 14. The fixed turbulence component includes an air supply duct 50 and an arc-shaped cover plate 42. The air supply duct 50 is fixedly installed inside the glue dispensing machine 10 through the side plate 51. The fixed turbulence component also includes a fixed spray seat 40 fixedly installed at both ends of the arc-shaped push rod 22. Several second nozzles 41 are evenly installed on the side of the fixed spray seat 40 near the tray 14. An arc-shaped cover plate 42 is fixedly installed on the top of the fixed spray seat 40, and several arc-shaped slots 43 are evenly opened on the arc-shaped cover plate 42.

[0043] Piston rods 53 are fixedly installed at both ends of the arc-shaped moving block 52, and the piston rods 53 extend through into the interior of the air supply duct 50. A piston plate 54 is movably arranged inside the air supply duct 50, and the piston plate 54 is fixedly installed with the piston rod 53. An air inlet pipe 56 and an air outlet pipe 57 are fixedly installed at the end of the air supply duct 50 away from the push frame 20, and the air outlet pipe 57 is connected to the fixed spray seat 40 and the telescopic guide pipe 26.

[0044] See Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 8 Inside the air supply duct 50, a piston plate 54 is fixedly connected to the end of each piston rod 53. The outer edge of the piston plate 54 maintains a tight dynamic seal with the inner wall of the air supply duct 50, which is usually achieved through a sealing ring. Therefore, the reciprocating linear motion of the arc-shaped moving block 52 is directly converted into the reciprocating piston motion of the piston plate 54 in the cavity of the air supply duct 50 without loss through the piston rod 53. Its working state is similar to that of a double-piston rod 53 cylinder or a manual air pump. When the piston plate 54 is pulled towards the push... When the moving frame 20 moves in the direction of the piston plate 54, the volume of the cavity behind the piston plate 54 increases, forming a negative pressure. At this time, the one-way valve on the air inlet pipe 56, which is connected to the external clean air source or filtered ambient air, opens, and the external air is drawn into the air supply pipe 50. When the piston plate 54 is pushed away from the moving frame 20, the piston plate 54 compresses the air behind it, and the air pressure in the cavity increases. At this time, the one-way valve of the air inlet pipe 56 closes, and the one-way valve of the air outlet pipe 57 is opened, and the compressed air is pumped out through the air outlet pipe 57.

[0045] See Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 7 and Figure 8 The air outlet pipe 57 is connected to the fixed spray seat 40, which is fixedly installed at both ends of the arc-shaped push rod 22. Compressed air is delivered here and sprayed out from multiple second nozzles 41 evenly distributed on the fixed spray seat 40. However, the airflow does not directly hit the workpiece here, but undergoes a key "morphological transformation". Above each second nozzle, there is an arc-shaped cover plate 42. Multiple arc-shaped slots 43 are precisely machined on the cover plate. When the columnar airflow with high speed and directionality is concentrated and sprayed from the second nozzles 41, it hits the inner wall of the arc-shaped cover plate 42 and is forced to squeeze out from these arc-shaped slots 43. The flow collides with the arc surface, and the direction of momentum is changed. The narrow arc-shaped slots 43 have a shearing effect on the airflow, which disrupts its laminar flow state. After passing through the slot, the airflow is guided by the arc surface of the slot and disperses in different directions, and mixes violently with the surrounding still air.

[0046] See Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 9 and Figure 10The dispensing machine 10 is also equipped with a fixed-point pushing component, which is used to limit the positioning of the tray 14 around the perimeter. The fixed-point pushing component includes a supporting base plate 60 and a supporting rotating rod 77. Several placement slots 15 are evenly opened on the top of the tray 14, and a fixed suction cup 16 is fixedly installed at the bottom of each placement slot 15. The fixed suction cup 16 fixes the DC contactor. The fixed-point pushing component also includes a supporting block 68 that moves on the top of the supporting base plate 60. First swing arms 64 are fixedly installed at both ends of the supporting rotating rod 77. The first swing arms 64 are movably connected to the driving arm 63. A triangular fixing plate 61 is fixedly installed on the top of the supporting base plate 60. A triangular swing arm 62 is movably connected to the top of the triangular fixing plate 61, and the triangular swing arm 62 is movably connected to the driving arm 63. A fixed sliding groove 66 is opened on the top of the supporting base plate 60. A fixed slider 67 is slidably connected in the fixed sliding groove 66, and the supporting block 68 is fixedly installed on the top of the fixed slider 67.

[0047] See Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 9 and Figure 10 The bottom of the triangular swing arm 62 is provided with an arc-shaped swing groove 65. Both ends of the support block 68 are fixedly installed with arc-shaped drive rods 69, and the size of the arc-shaped drive rods 69 matches the arc-shaped swing groove 65. The arc-shaped drive rods 69 move in the arc-shaped swing groove 65. An arc-shaped fixed point rod 19 is fixedly installed on the side of the support block 68 away from the first swing arm 64. A servo motor 70 is also fixedly installed inside the glue dispensing machine 10, and the support rotating rod 77 is fixedly installed at the output end of the servo motor 70.

[0048] See Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 9 and Figure 10 After the servo motor 70 starts, it drives the support rod 77 fixed at its output end to rotate. The two ends of the support rod 77 are symmetrically fixed with first swing arms 64. When the support rod 77 rotates, the two first swing arms 64 swing synchronously, becoming the input link of the entire motion chain. The end of each first swing arm 64 is movably connected to one end of a drive arm 63 through a hinge. The other end of the drive arm 63 is also connected to the movable end of a triangular swing arm 62 through a hinge. The fixed end vertex of the triangular swing arm 62 is movably connected to the triangular fixed plate 61 fixed on the support base plate 60 through a rotating shaft. This allows the triangular swing arm 62 to swing freely around the hinge point. Therefore, the reciprocating swing of the first swing arm 64 is transmitted and converted into the reciprocating swing motion of the triangular swing arm 62 around its fixed hinge point through the push and pull of the drive arm 63.

[0049] See Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 9 and Figure 10 At one end of the triangular swing arm 62 near the support block 68, a specific arc-shaped swing groove 65 is provided. Simultaneously, at each end of the support block 68, which can slide along the support base plate 60, an arc-shaped drive rod 69 is fixedly installed. The end of this drive rod is typically a cylindrical pin precisely inserted into the aforementioned arc-shaped swing groove 65, forming a "curved groove and cylindrical pin" motion structure. When the triangular swing arm 62 swings, the curved surface of the arc-shaped swing groove 65 at its bottom drives the inserted arc-shaped drive rod 69 to move. Since the support block 68 is strictly constrained within the fixed sliding groove 66 of the support base plate 60 via the fixed slider 67 at its bottom, the force exerted by the arc-shaped swing groove 65 on the arc-shaped drive rod 69 is decomposed, ultimately resulting in a single... The force is converted into a thrust that drives the support block 68 to make precise linear motion along the fixed slide 66. Finally, the arc-shaped fixed point rod 19, which is fixedly installed on the front side of the support block 68 away from the first swing arm 64, is smoothly and precisely inserted into the arc-shaped fixed point hole 17 corresponding to the side of the support plate 14 as the support block 68 moves forward in a straight line. Through the synchronous action of the symmetrical mechanism on both sides, the two arc-shaped fixed point rods 19 are inserted into the positioning hole of the support plate 14 from both sides at the same time, completing the precise limiting and fixing of it in the X and Y directions in the horizontal plane. At this time, the spatial position of the DC contactor array adsorbed by the fixed suction cup 16 on the support plate 14 is uniquely determined and an accurate correspondence is established with the motion coordinate system of the three-axis robot arm 11 on the dispensing machine 10.

[0050] See Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 9 and Figure 10 The support rod 77 is also equipped with a locking support assembly, which is used to lock and limit the tray 14 and clamp the tray 14. The locking support assembly includes a rotating gear 75 and a fixed rack 74. Arc-shaped fixed holes 17 are opened on both sides of the tray 14. The arc-shaped fixed holes 17 are matched with the size of the arc-shaped fixed rod 19, and the arc-shaped fixed rod 19 moves inside the arc-shaped fixed hole 17. The locking support assembly also includes an arc-shaped locking rod 76. The rotating gear 75 is fixedly installed at the middle of the support rod 77. A limiting base plate 71 is fixedly installed inside the dispensing machine 10. A limiting groove 72 is opened on the top of the limiting base plate 71. A limiting slider 73 is slidably connected in the limiting groove 72. A fixed rack 74 is fixedly installed on the top of the limiting slider 73, and the fixed rack 74 is movably meshed with the rotating gear 75.

[0051] The fixed rack 74 is fixedly installed with an arc-shaped locking rod 76 at one end near the support tray 14. Arc-shaped locking grooves 18 matching the size of the arc-shaped locking rods 76 are opened at the center of both sides of the support tray 14, and the arc-shaped locking rods 76 move in the arc-shaped locking grooves 18.

[0052] See Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 8 and Figure 9 The rotating gear 75 and the fixed rack 74 maintain precise meshing. The bottom of the fixed rack 74 is connected to the limiting base plate 71 via the limiting slider 73. The limiting base plate 71 is fixed inside the dispensing machine 10, and its top surface is machined with a limiting groove 72. The limiting slider 73 is embedded in this groove and is strictly restricted to sliding horizontally along the length of the groove. The fixed rack 74 is upright and fixed to the top of the limiting slider 73. Therefore, the rotational motion of the rotating gear 75 is converted into the precise horizontal linear motion of the fixed rack 74 together with the limiting slider 73 along the limiting groove 72 without deviation through the meshing of the gear and rack. The rotation direction of the gear determines whether the fixed rack 74 moves forward or backward.

[0053] At one end of each fixed rack 74 facing the support tray 14, an arc-shaped locking rod 76 is rigidly connected. The arc surface of the arc-shaped locking rod 76 is precisely designed. As the fixed rack 74 moves forward in a straight line, the arc-shaped locking rod 76 moves smoothly in the horizontal direction. Its front end is precisely inserted into the specially machined arc-shaped locking groove 18 on the side of the support tray 14. The arc-shaped fixing rod 19 of the fixed point push assembly on both sides is inserted into the arc-shaped fixing hole 17 on the side of the support tray 14 to limit it. The cooperation between the arc-shaped locking rod 76 and the arc-shaped locking groove 18 effectively prevents the support tray 14 from rotating or warping slightly around any axis. This is ensured by the gravity of the bottom of the support tray 14 itself and the adsorption force provided by the fixed suction cup 16 in the placement groove 15.

[0054] Working principle: The tray 14, equipped with a DC contactor, is horizontally pushed to the bottom working area of ​​the three-axis robot 11. When the tray 14 reaches the halfway position, the control system automatically triggers the first nozzle 25 and the second nozzle 41 to start working (as shown in the attached diagram of the instruction manual). Figure 4 The system blows clean the surface of the tray and the DC contactor to remove dust. Simultaneously, the three-axis robot 11 moves the nozzle along a preset trajectory with multiple degrees of freedom, gradually covering the entire tray area. Once the tray 14 is fully inside the robot's working area (as shown in the attached diagram), the cleaning process continues. Figure 5 The nozzles have completed multi-angle and all-round coverage cleaning of all DC contactors, effectively avoiding the problem of dust accumulation in remote dead corners caused by fixed nozzles, ensuring thorough, uniform and residue-free cleaning.

[0055] After the rotary motor 30 fixed at the top of the glue dispensing machine 10 is started, it drives the rotary plate 31 at its output end and the rotary column 32 fixed on the rotary plate 31 to rotate at a constant speed. The rotary column 32 is nested in the frame of the loop swing rod 33, and its rotational motion is converted into a periodic pushing and pulling action on the loop swing rod 33. A T-shaped slider 55 is fixed at the bottom of the loop swing rod 33. The T-shaped slider 55 is constrained in the pushing groove 27 at the top of the push frame 20, so that the swing of the loop swing rod 33 is precisely guided into a horizontal linear reciprocating motion. The T-shaped slider 55 is fixed to the arc-shaped moving block 52, thereby driving the arc-shaped moving block 52 to slide synchronously left and right inside the push frame 20. The arc-shaped moving block 52 drives the loop swing rod 33 to move synchronously through the T-shaped slider 55, and the loop push block 34 is sleeved on the loop swing rod 33. This series of linkage mechanisms ultimately transmits and converts the swing of the loop swing rod 33 into the reciprocating swing of the movable cleaning seat 24.

[0056] Multiple first nozzles 25 are evenly arranged on the movable cleaning seat 24 and are connected to the air outlet pipe 57 of the air supply duct 50 through the telescopic conduit 26 to continuously obtain high-pressure gas. When the movable cleaning seat 24 swings left and right under mechanical drive, the airflow it sprays out is like a fan, dynamically sweeping across the surface of the DC contactor mounted on the tray 14, effectively blowing away dust, debris and moisture, and providing a clean and dry substrate surface for subsequent glue dispensing.

[0057] When the arc-shaped moving block 52 is driven to reciprocate left and right, the piston rods 53 fixed at both ends of it move synchronously, driving the piston plate 54 located inside the air supply duct 50 to perform piston movement. When the piston plate 54 moves away from the air inlet pipe 56, it draws external air into the air supply duct 50 through the air inlet pipe 56; when it moves closer to the air inlet pipe 56, it forces the compressed air inside the duct out through the air outlet pipe 57. The airflow from the air outlet pipe 57 is transported to the fixed spray seats 40 fixedly installed at both ends of the arc-shaped push rod 22. The fixed spray seats 40 are installed on the side facing the support tray 14. There are multiple second nozzles 41, and the top of the fixed spray seat 40 is covered by an arc-shaped cover plate 42 and an arc-shaped slot 43. The concentrated airflow sprayed from the second nozzles 41 must pass through these arc-shaped slots 43 before being ejected. The special arc shape of the slots has a collision, cutting and guiding effect on the direct airflow, breaking it into a softer turbulent flow with a wider diffusion range. This dispersed airflow can cover the DC contactor located at the edge area of ​​the support tray 14 from more angles, forming a complementary cleaning and drying effect with the swing sweeping assembly, ensuring no dead angles.

[0058] When the servo motor 70 starts, it drives the support rod 77 to rotate. The first swing arm 64, which is fixed at both ends of the support rod 77, swings accordingly. The drive arm 63 pulls the triangular swing arm 62 to swing around its hinge point on the triangular fixed plate 61. The arc-shaped swing groove 65 at the bottom of the triangular swing arm 62 constrains the arc-shaped drive rod 69 fixed at both ends of the support block 68, thereby converting the swing of the triangular swing arm 62 into the linear motion of the support block 68 in the fixed slide groove 66 of the support base plate 60.

[0059] When the support block 68 moves toward the support tray 14, the arc-shaped positioning rod 19 installed at its front end is precisely inserted into the corresponding arc-shaped positioning hole 17 on the side of the support tray 14, completing the initial positioning of the support tray 14 in the horizontal plane and ensuring that its position relative to the glue dispensing machine 10 and the three-axis robot 11 is uniquely determined.

[0060] A rotating gear 75 is fixed in the middle section of the supporting rotating rod 77. When the supporting rotating rod 77 rotates, the rotating gear 75 rotates synchronously. The rotating gear 75 meshes with the fixed rack 74 installed on the limiting slider 73. The limiting slider 73 is constrained in the limiting groove 72 of the limiting base plate 71 and can only move in a straight line. Therefore, the rotation of the gear drives the rack to move in a straight line. An arc-shaped locking rod 76 is installed at the end of the fixed rack 74. Under the transmission of the gear and rack, the arc-shaped locking rod 76 moves horizontally and is inserted into the arc-shaped locking groove 18 pre-designed on the other side of the support tray 14. Thus, the support tray 14 is limited in the horizontal direction by the arc-shaped fixed point rods 19 and the arc-shaped locking rod 76 on both sides from different positions, and is fixed in the vertical direction by the fixed suction cup 16, realizing all-round rigid locking and completely eliminating any slight displacement or vibration that may occur during the glue pouring process.

[0061] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A glue filling device for direct current contactor production, comprising a glue filling machine (10), a three-axis mechanical hand (11) arranged in the glue filling machine (10), and a supporting tray (14) for loading the direct current contactor, characterized in that, The dispensing machine (10) is equipped with a swing-sweeping air assembly, which is used to blow dry and clean the DC contactor before dispensing. The swing sweeping assembly includes a push frame (20) and an arc-shaped push rod (22). The push frame (20) has an arc-shaped push rod (22) fixedly installed at both ends by an arc-shaped rod (21). The arc-shaped push rod (22) is movably connected to an arc-shaped push block (23). The push frame (20) is equipped with a fixed turbulence component. The fixed turbulence component disturbs and disperses the gas ejected by the swing sweeping component, and disperses, dries and cleans the DC contactors around the tray (14). The fixed turbulence component includes an air supply duct (50) and an arc-shaped cover plate (42). The dispensing machine (10) is also equipped with a fixed-point pushing component, which is used to limit the position of the tray (14) at fixed points. The fixed-point pushing component includes a support base plate (60) and a support rotating rod (77). The support rod (77) is also provided with a locking support assembly. The locking support assembly is used to lock and limit the support tray (14) and limit and clamp the support tray (14). The locking support assembly includes a rotating gear (75) and a fixed rack (74). The three-axis robot (11) drives the dispensing head (13) to move on the top of the support tray (14). The dispensing machine (10) is equipped with a material tank (12). The material tank (12) contains adhesive liquid for supplying the dispensing head (13). The swing sweeping assembly also includes a spiral swing rod (33). The dispensing machine (10) is fixedly installed with a push frame (20) through a base plate (28). The dispensing machine (10) is fixedly installed with a rotary motor (30) at the top of the inner part. The output end of the rotary motor (30) is fixedly installed with a rotating plate (31). The rotating plate (31) is fixedly installed with a rotating column (32). The rotating column (32) matches the size of the spiral swing rod (33). The rotating column (32) moves inside the spiral swing rod (33). The arc-shaped push block (23) has a movable cleaning seat (24) fixedly installed on the side near the support tray (14). The movable cleaning seat (24) has several first nozzles (25) evenly installed on the side away from the push frame (20), and the top of the movable cleaning seat (24) is connected to a telescopic conduit (26). An arc-shaped moving block (52) is slidably arranged inside the push frame (20). A T-shaped slider (55) is fixedly installed on the top of the arc-shaped moving block (52). The top of the T-shaped slider (55) is fixedly installed on the bottom of the boom swing rod (33). A push groove (27) is opened on the top of the push frame (20). The push groove (27) matches the size of the T-shaped slider (55), and the T-shaped slider (55) moves in the push groove (27). A loop-shaped push block (34) is movably sleeved at the bottom of the loop-shaped swing rod (33). A connecting rod (35) is fixedly installed on the side of the loop-shaped push block (34) near the arc-shaped push rod (22). The connecting rod (35) is movably connected to the arc-shaped push block (23).

2. The glue filling device for producing a DC contactor according to claim 1, characterized in that, The dispensing machine (10) has an air supply tube (50) fixedly installed inside via a side plate (51). The fixed turbulence assembly also includes a fixed spraying seat (40) fixedly installed at both ends of the arc-shaped push rod (22). The fixed spraying seat (40) has several second nozzles (41) evenly installed on one side near the support tray (14). The top of each fixed spraying base (40) is fixedly installed with an arc-shaped cover plate (42), and the arc-shaped cover plate (42) is evenly provided with several arc-shaped slots (43).

3. The glue filling device for producing a DC contactor of claim 2, wherein The two ends of the arc-shaped moving block (52) are fixedly installed with piston rods (53), and the piston rods (53) extend through into the interior of the air supply duct (50). A piston plate (54) is movably arranged inside the air supply duct (50), and the piston plate (54) is fixedly installed with the piston rod (53). The air supply duct (50) has an air inlet pipe (56) and an air outlet pipe (57) fixedly installed at the end away from the push frame (20), and the air outlet pipe (57) is connected to the fixed spray seat (40) and the telescopic conduit (26).

4. The glue-dispensing device for DC contactor production according to claim 1, characterized in that, The top of the tray (14) is evenly provided with several placement slots (15), and a fixed suction cup (16) is fixedly installed at the bottom of each placement slot (15). The fixed suction cup (16) fixes the DC contactor. The fixed point push assembly also includes a support block (68) that moves on the top of the support base plate (60). The two ends of the support rotating rod (77) are fixedly installed with first swing arms (64). The first swing arms (64) are movably connected to the drive arm (63). The top of the support base plate (60) is fixedly installed with a triangular fixing plate (61). The top of the triangular fixing plate (61) is movably connected to a triangular swing arm (62), and the triangular swing arm (62) is movably connected to the drive arm (63). The top of the support base plate (60) is provided with a fixed slide groove (66), and a fixed slider (67) is slidably connected in the fixed slide groove (66), and the support block (68) is fixedly installed at the top of the fixed slider (67).

5. A glue-dispensing device for DC contactor production according to claim 4, characterized in that, The bottom of the triangular swing arm (62) is provided with an arc-shaped swing groove (65), and both ends of the support block (68) are fixedly installed with arc-shaped drive rods (69), and the size of the arc-shaped drive rods (69) matches the arc-shaped swing groove (65). The arc-shaped drive rods (69) move in the arc-shaped swing groove (65). The support block (68) has an arc-shaped fixed rod (19) fixedly installed on the side away from the first swing arm (64). The glue dispensing machine (10) also has a servo motor (70) fixedly installed inside, and the support rotating rod (77) is fixedly installed at the output end of the servo motor (70).

6. The glue-dispensing device for DC contactor production according to claim 5, characterized in that, The support tray (14) has arc-shaped fixed holes (17) on both sides. The arc-shaped fixed holes (17) are matched with the size of the arc-shaped fixed rod (19), and the arc-shaped fixed rod (19) moves inside the arc-shaped fixed hole (17). The locking support assembly also includes an arc-shaped locking rod (76), and a rotating gear (75) is fixedly installed at the middle end of the support rotating rod (77). The glue dispensing machine (10) has a fixed base plate (71) installed inside. A limit groove (72) is opened on the top of the limit base plate (71). A limit slider (73) is slidably connected in the limit groove (72). A fixed rack (74) is fixedly installed on the top of the limit slider (73), and the fixed rack (74) is in active engagement with the rotating gear (75).

7. A glue-dispensing device for DC contactor production according to claim 6, characterized in that, The fixed rack (74) is fixedly installed with an arc-shaped locking rod (76) at one end near the support plate (14). An arc-shaped locking groove (18) matching the size of the arc-shaped locking rod (76) is opened at the center of both sides of the support plate (14), and the arc-shaped locking rod (76) moves in the arc-shaped locking groove (18).

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