An automated assembly line for miniature water pumps

Abstract

This invention discloses an automated assembly line for miniature water pumps. The miniature water pump includes a top cover, a valve plate, a valve seat, an umbrella valve, and a base, arranged sequentially. The umbrella valve includes an umbrella cap and a valve stem connected to the bottom of the umbrella cap. The valve seat has an installation through hole for the valve stem to pass through. The assembly line includes an umbrella loading device, a cap fitting device, and a base mounting device arranged sequentially. The umbrella loading device includes an umbrella releasing mechanism and a pull rod device. The umbrella releasing mechanism picks up the umbrella valve and inserts the end of the valve stem into the installation through hole. The pull rod device pulls out the valve stem located inside the installation through hole. The direction in which the valve stem is inserted into the installation through hole is the same as the direction in which it is pulled out. The cap fitting device picks up the valve plate and attaches it to the top cover or valve seat, and then fastens the top cover and valve seat together. The base mounting device securely connects the valve seat and the base. This invention enables automated assembly of the miniature water pump, improving assembly speed and production efficiency, and reducing the likelihood of missing components during assembly.

Description

Technical Field

[0001] This invention relates to the field of assembly equipment technology, and in particular to an automated assembly line for miniature water pumps. Background Technology

[0002] There is a diaphragm-type micro water pump that needs to be assembled. The specific structure of the micro water pump to be assembled is as follows: Figure 1-9 As shown, the umbrella valve and the valve plate control one-way flow. The umbrella valve is installed on the valve seat on the side facing the base. The diameter of the valve stem of the umbrella valve is increased to prevent the umbrella valve from falling off after the valve stem passes through the mounting hole. The valve plate is installed on the valve seat on the side facing the upper cover. Both the valve seat and the upper cover are provided with grooves that match the shape of the valve plate.

[0003] Currently, the miniature water pump is still assembled manually, which is slow and inefficient, and lacks corresponding automated equipment to assist production. In addition, the miniature water pump has a large number of parts, making it easy to miss parts during assembly. Summary of the Invention

[0004] The purpose of this invention is to provide an automated assembly line for micro water pumps, so as to realize the automated assembly of micro water pumps.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] An automated assembly line for assembling miniature water pumps includes a top cover, a valve plate, a valve seat, an umbrella valve, and a base arranged sequentially. The umbrella valve includes an umbrella cap and a valve stem connected to the bottom of the umbrella cap. The valve seat has an installation through hole through which the valve stem can pass. The line includes an umbrella loading device, a cap fitting device, and a base mounting device arranged sequentially. The umbrella loading device includes an umbrella releasing mechanism and a pull rod device. The umbrella releasing mechanism is used to pick up the umbrella valve and send the end of the valve stem into the installation through hole. The pull rod device is used to pull out the valve stem located inside the installation through hole. The direction in which the valve stem is sent into the installation through hole is the same as the direction in which it is pulled out of the installation through hole. The cap fitting device is used to pick up the valve plate and install it onto the top cover or valve seat, and to fasten the top cover and valve seat together. The base mounting device is used to fix the valve seat and the base together.

[0007] Furthermore, the umbrella-loading device also includes a valve seat vibratory plate, a flexible vibratory plate, a first shifting mechanism, and a valve seat feeding mechanism. The valve seat vibratory plate is used for feeding valve seats, and the flexible vibratory plate is used for feeding umbrella valves. The bottom of the plate has multiple material-filling holes for the valve rod to fall vertically into. The pull rod device is a vacuum adsorption device, and the adsorption position corresponds to the end of the mounting through hole. The first shifting mechanism is used to receive the valve seats output by the valve seat vibratory plate and sequentially send the valve seats to positions corresponding to the umbrella-loading mechanism, the pull rod device, and the valve seat feeding mechanism. The valve seat feeding mechanism is connected to the cap-fitting device.

[0008] Furthermore, a welding device is provided between the cover fitting device and the base mounting device. The welding device is an ultrasonic welding machine, used to weld and fix the cover and the valve seat.

[0009] Furthermore, the outer side of the top cover is provided with a water inlet and a water outlet. The water inlet is unidirectionally connected to the outer side of the valve seat through an umbrella-shaped valve, and the water outlet is unidirectionally connected to the outer side of the valve seat through a valve plate. The rear end of the welding device is successively provided with a first airtightness detection device and a second airtightness detection device. One of the first airtightness detection device and the second airtightness detection device vents air to the water inlet to detect the airtightness of the cavity between the top cover and the valve seat, and the other vents air to the water outlet to detect the airtightness of the valve plate.

[0010] Furthermore, it also includes a dust removal mechanism, which is used to block the water outlet and ventilate the water inlet to blow out the dust between the top cover and the valve seat.

[0011] Furthermore, the base has a motor shaft connection hole at its bottom. The base mounting device includes a base feeding mechanism, a grease dispensing mechanism, a second shifting mechanism, and a front-end feeding mechanism. The base feeding mechanism outputs the base and sends it to the second shifting mechanism. The second shifting mechanism sequentially sends the base to positions corresponding to the grease dispensing mechanism and the front-end feeding mechanism. When the base corresponds to the grease dispensing mechanism, the side of the base away from the valve seat faces the grease dispensing mechanism. When it corresponds to the front-end feeding mechanism, the side of the base that mates with the valve seat faces the front-end feeding mechanism. The grease dispensing mechanism dispenses grease into the motor shaft connection hole. The front-end feeding mechanism mounts the already fixed top cover and valve seat onto the top of the base.

[0012] Furthermore, the second switching mechanism includes a first turntable, a second turntable, and a flipping mechanism. The first turntable is used to receive the base and send the base to a position corresponding to the grease dispensing mechanism and the flipping mechanism. The flipping mechanism is used to clamp the base and flip the base to the second turntable. The second turntable is used to receive the base and send the base to a position corresponding to the front-end feeding mechanism.

[0013] Furthermore, it also includes a displacement detection device, which is used to detect the displacement between the top surface of the upper cover and the bottom surface of the valve seat, as well as the displacement between the top surface of the upper cover and the bottom surface of the base.

[0014] Furthermore, it also includes a finished product arrangement mechanism and a batch unloading mechanism. The finished product arrangement mechanism includes an unloading robot, a discharge platform, a material-pushing plate, and a plate-shifting mechanism. The unloading robot is used to grip the micro water pump and deliver it to the top of the discharge platform. The material-pushing plate is set on the top of the discharge platform and has multiple material-pushing slots on the side facing the micro water pump, allowing the micro water pump to enter. The material-pushing slots are arranged in a straight line at equal intervals. The plate-shifting mechanism is used to drive the material-pushing plate to translate along the arrangement direction of the material-pushing slots and to translate in a horizontal direction perpendicular to the arrangement direction of the material-pushing slots. The batch unloading mechanism includes two long strip-shaped clamping plates. The two clamping plates are arranged opposite each other, and their length direction is consistent with the arrangement direction of the micro water pumps. They can approach each other to clamp the micro water pumps.

[0015] Furthermore, after the base is installed with the equipment, a crispy tray receiving mechanism is provided. The crispy tray receiving mechanism includes an empty tray limiting frame, a horizontal conveyor line, a receiving tray limiting frame, a lifting mechanism, and multiple layers of crispy trays for storing micro water pumps. The empty tray limiting frame and the receiving tray limiting frame are spaced apart at the top of the horizontal conveyor line, and a gap is left between them to allow a single layer of crispy trays to pass through. Both the empty tray limiting frame and the receiving tray limiting frame are rectangular frames with a bottom that allows crispy trays to enter and exit. The lifting mechanism is used to lift the crispy trays located inside and at the bottom of the receiving tray limiting frame layer by layer.

[0016] The present invention has the following beneficial effects:

[0017] 1. This production line automatically installs umbrella valves and valve plates by sequentially connecting umbrella-mounting equipment, cover-fitting equipment, and base-installing equipment, and combines the top cover, valve seat, and base to achieve automated assembly of the micro water pump, improve the assembly speed and production efficiency of the micro water pump, and make it less likely for omissions to occur during the assembly process.

[0018] 2. During the assembly process, a displacement detection device, a first airtightness detection device, and a second airtightness detection device are installed to ensure that each component is installed in place and that the airtightness performance meets the requirements, thus guaranteeing the quality of the assembly and helping to distinguish defective products.

[0019] 3. The production line uses a finished product arrangement mechanism and a batch feeding mechanism to arrange and output the assembled miniature water pumps. With the addition of a tray receiving mechanism, the miniature water pumps can be directly collected and stored after assembly, thereby improving production efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the valve seat facing the base side of the present invention.

[0021] Figure 2 This is a schematic diagram of the valve seat facing the upper cover side of the present invention.

[0022] Figure 3 This is a schematic diagram of the umbrella-shaped valve structure of the present invention.

[0023] Figure 4 This is a schematic diagram of the valve seat structure with an umbrella-shaped valve according to the present invention.

[0024] Figure 5 This is a schematic diagram of the valve plate structure of the present invention.

[0025] Figure 6 This is a schematic diagram of the upper cover structure of the present invention.

[0026] Figure 7 This is a schematic diagram of the combined structure of the top cover, valve plate and valve seat of the present invention.

[0027] Figure 8 This is a schematic diagram of the base structure of the present invention.

[0028] Figure 9 This is a schematic diagram of the micro water pump structure to be assembled according to the present invention.

[0029] Figure 10 This is a schematic diagram of the production line structure of the present invention.

[0030] Figure 11 This is a schematic diagram of a portion of the umbrella-loading device of the present invention.

[0031] Figure 12 This is a schematic diagram of the flexible vibratory disk and parachute robot structure of the present invention.

[0032] Figure 13 This is a schematic diagram of the umbrella turnover mechanism of the present invention.

[0033] Figure 14 This is a schematic diagram of the cover fitting device of the present invention.

[0034] Figure 15 This is a schematic diagram of part of the welding and testing equipment of the present invention.

[0035] Figure 16 This is a schematic diagram of the first airtightness detection mechanism of the present invention.

[0036] Figure 17 This is a schematic diagram of the base mounting device structure of the present invention.

[0037] Figure 18 This is a schematic diagram of the flipping mechanism of the present invention.

[0038] Figure 19 This is a schematic diagram of the finished product arrangement mechanism of the present invention.

[0039] Figure 20This is a schematic diagram of the batch feeding mechanism of the present invention.

[0040] Figure 21 This is a schematic diagram of the crispy tray receiving mechanism of the present invention.

[0041] Explanation of main component symbols: 1. Miniature water pump; 11. Top cover; 111. Water inlet; 112. Water outlet; 12. Valve plate; 13. Valve seat; 131. Mounting through hole; 14. Umbrella valve; 141. Umbrella cap; 142. Valve stem; 15. Base; 151. Motor shaft connection hole; 2. Umbrella loading equipment; 21. Flexible vibratory feeder; 211. Material preparation hole; 22. Umbrella transfer robot; 23. Umbrella turnover mechanism; 231. Material discharge hole; 24. Umbrella placement mechanism; 25. Valve seat vibratory feeder; 26. Umbrella suction platform; 27. First transfer mechanism; 28. Valve seat unloading mechanism; 3. Top cover fitting equipment; 31. Valve seat loading mechanism; 32. Valve plate vibratory feeder; 33. Valve plate loading robot; 34. Top cover vibratory feeder; 35. Top cover loading robot. 4. Welding testing equipment; 41. Welding device; 42. Displacement detection device; 43. Dust removal mechanism; 44. First airtightness detection device; 45. Second airtightness detection device; 5. Base installation equipment; 51. Base feeding mechanism; 52. Grease dispensing mechanism; 53. Second transfer mechanism; 531. First turntable; 532. Second turntable; 533. Tilting mechanism; 54. Front-end feeding mechanism; 6. Finished product arrangement mechanism; 61. Unloading robot; 62. Discharge platform; 63. Material feeding plate; 631. Material feeding groove; 64. Plate transfer mechanism; 7. Batch unloading mechanism; 71. Clamping plate; 8. Crispy tray receiving mechanism; 81. Empty tray limiting frame; 82. Horizontal conveyor line; 83. Receiving tray limiting frame; 84. Lifting mechanism; 85. Crispy tray. Detailed Implementation

[0042] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0043] like Figure 10-21 As shown, this invention discloses an automated assembly line for micro water pumps, used to assemble micro water pumps 1, such as... Figure 1-9As shown, the miniature water pump 1 includes a top cover 11, a valve plate 12, a valve seat 13, an umbrella valve 14, and a base 15 arranged sequentially. The umbrella valve 14 includes an umbrella cap 141 and a valve stem 142 connected to the bottom of the umbrella cap 141. The valve seat 13 has a mounting through hole 131 through which the valve stem 142 can pass. The assembly line includes an umbrella loading device 2, a cap fitting device 3, and a base mounting device 5 arranged sequentially. The umbrella loading device 2 includes an umbrella releasing mechanism 24 and a pull rod device. 4 is used to pick up the umbrella valve 14 and send the end of the valve stem 142 into the mounting through hole 131. The pull rod device is used to pull out the valve stem 142 located inside the mounting through hole 131. The direction in which the valve stem 142 is sent into the mounting through hole 131 is the same as the direction in which it is pulled out of the mounting through hole 131. The cover fitting device 3 is used to pick up the valve plate 12 and install it onto the upper cover 11 or valve seat 13, and to fasten and fix the upper cover 11 and valve seat 13 together. The base mounting device 5 is used to fix and connect the valve seat 13 and the base 15.

[0044] The umbrella-loading device 2 also includes a valve seat vibrating plate 25, a flexible vibrating plate 21, a first shifting mechanism 27, and a valve seat unloading mechanism 28. The valve seat vibrating plate 25 is used to feed the valve seat 13, and the flexible vibrating plate 21 is used to feed the umbrella valve 14. The bottom of the plate is provided with multiple material holes 211 for the valve rod 142 to fall vertically into. The pull rod device is a vacuum adsorption device, and the adsorption position corresponds to the end of the mounting through hole 131. The first shifting mechanism 27 includes multiple movable grippers to receive the valve seat 13 output by the valve seat vibrating plate 25 and send the valve seat 13 to the positions corresponding to the umbrella-releasing mechanism 24, the pull rod device, and the valve seat unloading mechanism 28 in sequence. The valve seat unloading mechanism 28 is connected to the cap-fitting device 3 to send the valve seat 13 with the umbrella valve 14 installed to the cap-fitting device 3 for the next step of assembly.

[0045] Ideally, the umbrella-releasing mechanism 24 and the pull rod device should be positioned vertically opposite each other, acting simultaneously on the valve seat 13 for high assembly efficiency. A suction platform 26 can be installed between the umbrella-releasing mechanism 24 and the pull rod device to hold the valve seat 13, facilitating the installation of the umbrella valve 14. When the length of the valve stem 142 of the umbrella valve 14 is sufficient, and its end protrudes from the mounting through hole 131 after insertion, the pull rod device can use movable grippers to grasp the end of the valve stem 142 and pull it to assemble it into place. When a vacuum adsorption device is used for the pull rod device, the length limitation of the valve stem 142 is less significant. When equipped with the suction platform 26, the pull rod device must be connected to the bottom of the suction platform 26.

[0046] When the distance between the umbrella-laying mechanism 24 and the flexible vibrating plate 21 is large, an umbrella-transferring robot 22 and an umbrella turnover mechanism 23 can be added for transfer to assist in discharging the material to the umbrella-laying mechanism 24. The umbrella-transferring robot 22 has a suction nozzle to pick up the sorted, vertically positioned umbrella valves 14 from the material-laying hole 211 and send them to the corresponding material discharge hole 231 at the top of the umbrella turnover mechanism 23. Then, the umbrella turnover mechanism 23 sends the umbrella valves 14 it carries to the bottom of the umbrella-laying mechanism 24 for the umbrella-laying mechanism 24 to pick up.

[0047] The cover-feeding device 3 includes a valve seat feeding mechanism 31, a valve plate vibrating plate 32, a valve plate feeding robot 33, a cover vibrating plate 34, a cover feeding robot 35, and a turntable. The valve seat feeding mechanism 31 is used to pick up the valve seat 13 output from the umbrella-feeding device 2, and flip the side of the valve seat 13 away from the base 15 upwards and send it to the top of the turntable. After the turntable receives the valve seat 13, it is sequentially sent to the positions corresponding to the valve plate feeding robot 33 and the cover feeding robot 35. The valve plate vibrating plate 32 is also a flexible vibrating plate, which can vibrate and flatten the valve plate 12 for easy picking. The valve plate feeding robot 33 is used to pick up the valve plate 12 from the valve plate vibrating plate 32 and send it to the valve seat 13. The cover feeding robot 35 is used to pick up the cover 11 from the cover vibrating plate 34 and send it to the top of the valve seat 13 and install the cover 11 downwards. After the cover 11 and the valve seat 13 are fastened together, it is flipped over again and sent to the welding and testing device 4.

[0048] The welding testing equipment 4 is connected between the cover fitting equipment 3 and the base mounting equipment 5, and includes a welding device 41. The welding device 41 is used to weld and fix the upper cover 11 and the valve seat 13. The welding device 41 is preferably an ultrasonic welding machine, which is convenient for automated operation. During welding, ultrasonic waves can be transmitted through the welding head to glue the joint surfaces between the upper cover 11 and the valve seat 13 together.

[0049] The outer side of the top cover 11 is provided with a water inlet 111 and a water outlet 112. The water inlet 111 is unidirectionally connected to the outer side of the valve seat 13 via an umbrella valve 14, and the water outlet 112 is unidirectionally connected to the outer side of the valve seat 13 via a valve plate 12. The unidirectional connection paths of the two are different and opposite in direction. Correspondingly, the welding testing equipment 4 also includes a first airtightness testing device 44 and a second airtightness testing device 45 located at the rear end of the welding device 41 and arranged sequentially. One of the first airtightness testing device 44 and the second airtightness testing device 45 vents air to the water inlet 111 to test the airtightness of the cavity between the top cover 11 and the valve seat 13, and the other vents air to the water outlet 112 to test the airtightness of the valve plate 12. When performing airtightness testing, all other parts communicating with the outside must be sealed.

[0050] As an example, such as Figure 15 , 16As shown, the first airtightness testing device 44 is connected to the water outlet 112 of the upper cover 11 to test the airtightness of the valve plate 12 installation. During the test, the side of the valve seat 13 facing away from the upper cover 11 is sealed. The second airtightness testing device 44 is connected to the water inlet 111 of the upper cover 11 and air is introduced through the water inlet 111 to test the airtightness of the cavity between the upper cover 11 and the valve seat 13, that is, to test the airtightness of the weld between the upper cover 11 and the valve seat 13. During the test, the side of the valve seat 13 facing away from the upper cover 11 is also sealed.

[0051] The welding testing equipment 4 also includes a dust removal mechanism 43, which is used to block the water outlet 112 and vent air to the water inlet 111 to blow out the dust between the upper cover 11 and the valve seat 13, that is, to blow out the dust in the internal cavity of the upper cover 11 and the valve seat 13 after welding, so as to make the internal cavity unobstructed and clean. The dust removal mechanism 43 is located before the first airtightness detection device 44.

[0052] The base 15 has a motor shaft connection hole 151 at its bottom, through which it can be connected to a motor drive. To ensure smooth motor drive, grease needs to be applied into the motor shaft connection hole 151 for lubrication. Simultaneously, for the final assembly step, a base mounting device 5 is installed at the rear end of the welding and testing equipment 4. This base mounting device 5 includes a base loading mechanism 51, a grease application mechanism 52, a second shifting mechanism 53, and a front loading mechanism 54. The base loading mechanism 51 includes a conveyor line and a robotic arm for outputting the base 15 and delivering it to the second shifting mechanism 53. The second shifting mechanism 53 sequentially sends the base 15 to positions corresponding to the grease application mechanism 52 and the front loading mechanism 54. When the base 15 corresponds to the grease application mechanism 52, the side of the base 15 facing away from the valve seat 13... The side of the base 15 that mates with the valve seat 13 faces the grease dispensing mechanism 52, that is, the side with the motor shaft connection hole 151 faces the grease dispensing mechanism 52. When corresponding to the front feeding mechanism 54, the side of the base 15 that mates with the valve seat 13 faces the front feeding mechanism 54. The grease dispensing mechanism 52 is used to dispense grease into the motor shaft connection hole 151. The front feeding mechanism 54 includes a conveyor line and a robot arm that are connected to the welding and testing equipment 4. It is used to install the top cover 11 and the valve seat 13, which have been fixed together and tested, onto the top of the base 15.

[0053] When the base 15 corresponds to the grease dispensing mechanism 52 and the front-end feeding mechanism 54, their upward-facing end faces are different. To facilitate the transfer and flipping of the base 15, the second transposition mechanism 53 includes a first turntable 531, a second turntable 532, and a flipping mechanism 533. The first turntable 531 receives the base 15 and delivers it to the position corresponding to the grease dispensing mechanism 52 and the flipping mechanism 533. The flipping mechanism 533 includes rotatable grippers for gripping the base 15 and flipping it (rotating 180°) to the second turntable 532. The second turntable 532 receives the base 15 and delivers it to the position corresponding to the front-end feeding mechanism 54. The first turntable 531 and the second turntable 532 rotate simultaneously but in opposite directions.

[0054] The assembly line also includes a displacement detection device 42, which is used to detect the displacement between the top surface of the upper cover 11 and the bottom surface of the valve seat 13, as well as the displacement between the top surface of the upper cover 11 and the bottom surface of the base 15. That is, the displacement detection device 42 can be installed between the welding device 41 and the dust removal mechanism 43, or after the front-end feeding mechanism 54. When the displacement detection device 42 is installed between the welding device 41 and the dust removal mechanism 43, the displacement between the top surface of the upper cover 11 and the bottom surface of the valve seat 13 can be used to determine whether the upper cover 11 and the valve seat 13 are properly fitted. When the displacement detection device 42 is installed after the front-end feeding mechanism 54, the displacement between the top surface of the upper cover 11 and the bottom surface of the base 15 can be used to determine whether the valve seat 13 and the base 15 are properly fitted, ensuring the quality of the assembly.

[0055] The assembly line also includes a finished product arrangement mechanism 6 and a batch unloading mechanism 7. The finished product arrangement mechanism 6 includes an unloading robot 61, a discharge platform 62, a material-pulling plate 63, and a plate-shifting mechanism 64. The unloading robot 61 is used to clamp the micro water pump 1 and send it to the top of the discharge platform 62. The material-pulling plate 63 is set on the top of the discharge platform 62, and has multiple material-pulling slots 631 on the side facing the micro water pump 1, which can be entered by the micro water pump 1. The material-pulling slots 631 are arranged in a straight line at equal intervals. The plate-shifting mechanism 64 is used to drive the material-pulling plate 63 to move horizontally along the arrangement direction of the material-pulling slots 631 and horizontally along the horizontal direction perpendicular to the arrangement direction of the material-pulling slots 631. The batch unloading mechanism 7 includes two long strip clamping plates 71. The two clamping plates 71 are arranged opposite each other, and their length direction is consistent with the arrangement direction of the micro water pump 1. They can approach each other to clamp the micro water pump 1. Multiple micro water pumps 1 can be clamped simultaneously between the two clamping plates 71. Multiple vertical through slots that are adapted to the shape of the micro water pumps 1 can be opened on the clamping plates 71 to better clamp them. Each vertical through slot is set along the length of the clamping plate 71, and the spacing should be equal to the arrangement spacing of the micro water pumps 1 on the discharge platform 62.

[0056] After the finished product arrangement mechanism 6 and the batch unloading mechanism 7 are connected to the base mounting equipment 5, during unloading, the miniature water pumps 1 assembled by the base mounting equipment 5 are picked up one by one by the unloading robot 61 and sent to the discharge platform 62. Then, the moving plate mechanism 64 drives the material-pulling plate 63 to approach the miniature water pumps 1 and simultaneously put all the miniature water pumps 1 on the discharge platform 62 into each material-pulling groove 631. Then, the material-pulling plate 63 moves horizontally along the arrangement direction of the material-pulling groove 631, while simultaneously moving each miniature water pump 1 away from the loading robot until the entire row of miniature water pumps 1 is filled and then the batch unloading mechanism 7 picks up the unloaded material.

[0057] After the finished product arrangement mechanism 6 and the batch feeding mechanism 7, a crispy tray receiving mechanism 8 is connected. The crispy tray receiving mechanism 8 includes an empty tray limiting frame 81, a horizontal conveyor line 82, a receiving tray limiting frame 83, a lifting mechanism 84, and multiple layers of crispy trays 85 for storing the micro water pump 1. The empty tray limiting frame 81 and the receiving tray limiting frame 83 are spaced apart on the top of the horizontal conveyor line 82, and there is a gap between them that allows a single layer of crispy trays 85 to pass through. Both the empty tray limiting frame 81 and the receiving tray limiting frame 83 are rectangular frames with a bottom that allows the crispy trays 85 to enter and exit. The lifting mechanism 84 is used to lift the crispy trays 85 located inside and at the bottom of the receiving tray limiting frame 83 layer by layer.

[0058] When the crispy tray receiving mechanism 8 is in operation, it first outputs a layer of crispy trays 85 from the bottom of the empty tray limiting frame 81. The output crispy trays 85 are transported by the horizontal conveyor line 82. During the transport process, the batch feeding mechanism 7 can pick up the assembled miniature water pumps 1 in batches and send them to the crispy trays 85 until the crispy trays 85 are full. After the crispy trays 85 are full of miniature water pumps 1, they are sent to the bottom of the receiving limit frame 83 by the horizontal conveyor line 82, and then lifted up and stored in the receiving limit frame 83 by the lifting mechanism 84. After a certain period of time, the multiple trays of miniature water pumps 1 in the receiving frame can be manually collected.

[0059] In summary, this assembly line can automatically assemble the miniature water pump 1 through multiple processing steps via umbrella assembly equipment 2, cap fitting equipment 3, welding and testing equipment 4, base installation equipment 5, finished product arrangement mechanism 6, batch unloading mechanism 7, and crispy tray receiving mechanism 8. This process effectively improves the assembly efficiency of the miniature water pump 1, accelerates the production process, and reduces labor costs. Multiple testing devices are installed during the assembly process to ensure assembly quality and a low defect rate.

[0060] Although the invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail to the invention without departing from the spirit and scope of the invention as defined in the appended claims are within the scope of protection of the invention.

Claims

1. An automated assembly line for assembling miniature water pumps, the miniature water pump comprising, in sequence, an upper cover, a valve plate, a valve seat, an umbrella valve, and a base, the umbrella valve comprising an umbrella cap and a valve stem connected to the bottom of the umbrella cap, the valve seat having an installation through hole through which the valve stem can pass, characterized in that: The umbrella equipment, the cover equipment and the base installation equipment are sequentially connected, the umbrella equipment includes an umbrella mechanism and a pull rod device, the umbrella mechanism is used to suck the umbrella valve and send the valve rod end into the installation hole, the pull rod device is used to pull out the valve rod inside the installation hole, the direction of the valve rod sent into the installation hole is the same as the direction of the valve rod pulled out of the installation hole, the cover equipment is used to suck the valve sheet to the upper cover or the valve seat and to buckle and fix the upper cover and the valve seat, the base installation equipment is used to fix the valve seat and the base; The welding device is arranged between the cover equipment and the base installation equipment, the welding device is an ultrasonic welding machine, and is used to weld and fix the upper cover and the valve seat; The welding device rear end is sequentially provided with a first air tightness detection device and a second air tightness detection device, one of the first air tightness detection device and the second air tightness detection device is used to ventilate the water inlet interface to detect the air tightness of the cavity between the upper cover and the valve seat, and the other is used to ventilate the water outlet interface to detect the air tightness of the valve sheet.

2. The automatic assembly line for micro water pumps according to claim 1, characterized in that: The umbrella equipment further includes a valve seat vibration disc, a flexible vibration disc, a first transposition mechanism and a valve seat blanking mechanism, the valve seat vibration disc is used for valve seat feeding, the flexible vibration disc is used for umbrella valve feeding, and a plurality of whole material holes corresponding to the vertical falling of the valve rod are formed in the disc bottom, the pull rod device is a vacuum adsorption device, and the adsorbed position corresponds to the end of the installation hole, the first transposition mechanism is used to receive the valve seat output by the valve seat vibration disc, and sequentially sends the valve seat to positions corresponding to the umbrella mechanism, the pull rod device and the valve seat blanking mechanism, and the valve seat blanking mechanism is connected with the cover equipment.

3. The automatic assembly line for micro water pumps according to claim 1, characterized in that: A dust removal mechanism is further included, the dust removal mechanism is used to block the water outlet interface and ventilate the water inlet interface to blow off the dust between the upper cover and the valve seat.

4. The automatic assembly line for micro water pumps according to claim 1, characterized in that: The base bottom is provided with a motor shaft connecting hole, the base installation equipment includes a base feeding mechanism, a grease applying mechanism, a second transposition mechanism and a front end feeding mechanism, the base feeding mechanism is used to output the base and send the base to the second transposition mechanism, the second transposition mechanism is used to sequentially send the base to positions corresponding to the grease applying mechanism and the front end feeding mechanism, when the base corresponds to the grease applying mechanism, the side of the base away from the valve seat faces the grease applying mechanism, and when the base corresponds to the front end feeding mechanism, the side of the base matched with the valve seat faces the front end feeding mechanism, the grease applying mechanism is used to apply grease into the motor shaft connecting hole, and the front end feeding mechanism is used to install the upper cover and the valve seat fixed with each other to the top of the base.

5. The automatic assembly line for micro water pumps according to claim 4, characterized in that: The second transposition mechanism includes a first rotary disc, a second rotary disc and a turnover mechanism, the first rotary disc is used to receive the base and send the base to positions corresponding to the grease applying mechanism and the turnover mechanism, the turnover mechanism is used to clamp the base and send the base to the second rotary disc after turning over, and the second rotary disc is used to receive the base and send the base to a position corresponding to the front end feeding mechanism.

6. The automatic assembly line for micro water pumps according to claim 1, characterized in that: The displacement detection device is used to detect the displacement between the top end surface of the upper cover and the bottom end surface of the valve seat, and the displacement between the top end surface of the upper cover and the bottom end surface of the base.

7. The automatic assembly line for micro water pumps according to claim 1, characterized in that: The finished product arrangement mechanism comprises a discharging manipulator, a discharging platform, a poking plate and a plate moving mechanism. The discharging manipulator is used to clamp the micro water pump and send it to the top of the discharging platform. The poking plate is arranged on the top of the discharging platform and is provided with a plurality of poking grooves for the micro water pump on the side facing the micro water pump. The poking grooves are arranged in a straight line at equal intervals. The plate moving mechanism is used to drive the poking plate to translate along the arrangement direction of the poking grooves and to translate along the horizontal direction perpendicular to the arrangement direction of the poking grooves. The batch discharging mechanism comprises two long clamping plates. The two clamping plates are oppositely arranged and have the same length direction as the arrangement direction of the micro water pump and can clamp the micro water pump by approaching each other.

8. The automatic assembly line for micro water pumps according to claim 1, characterized in that: The base mounting device is provided with a brittle disc collecting mechanism. The brittle disc collecting mechanism comprises an empty disc limiting frame, a horizontal conveying line, a disc collecting limiting frame, a lifting mechanism and a plurality of brittle discs for storing the micro water pump. The empty disc limiting frame and the disc collecting limiting frame are arranged at the top of the horizontal conveying line at intervals and leave a spacing between the horizontal conveying line for the single-layer brittle disc. The empty disc limiting frame and the disc collecting limiting frame are both rectangular frames with the bottom for the brittle disc to enter and exit. The lifting mechanism is used to lift the brittle discs in the disc collecting limiting frame and at the bottom layer by layer.

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