Automatic water detection performance detection equipment for drainage pump

Abstract

The application discloses a kind of automatic water detection performance detection equipment of drainage pump, including conveying line assembly, feeding and discharging handling mechanism, positioning conductive mechanism, water detection station mechanism and workpiece handling mechanism;Conveying line assembly is used to convey the tool plate that is loaded with drainage pump, feeding and discharging handling mechanism realizes the transfer of tool plate between conveying line and detection station, positioning conductive mechanism is accurately positioned to tool plate and is automatically powered for drainage pump by conductive contact mode, workpiece handling mechanism completes the bidirectional transfer of drainage pump between tool plate and water detection station, water detection station mechanism can carry out performance detection to drainage pump, and after detection is completed, residual moisture in pump cavity is automatically pumped out by negative pressure vacuum generator.The realization of drainage pump water detection whole process unmanned operation eliminates the interference of human factors on detection result, and detection data is stable and reliable, residual moisture is completely treated, power line damage in handling process is avoided, detection capacity is greatly improved, and enterprise production cost is reduced.

Description

Technical Field

[0001] This invention relates to the technical field of drainage pump performance testing equipment, and more specifically, to automatic water performance testing equipment for drainage pumps. Background Technology

[0002] As a core component in household appliances, industrial water supply and drainage, and HVAC systems, the head, flow rate, and pressure of drainage pumps directly determine the quality and reliability of the product. In the large-scale production of drainage pumps, water performance testing is an essential and crucial step to screen out substandard products and ensure the consistency of product quality before they leave the factory.

[0003] Currently, most water performance testing of drainage pumps in the industry is carried out using semi-automatic equipment or single-station, single-function equipment. This type of equipment typically requires multiple operators. After manually moving the drainage pump to the testing station, the power cord is manually connected, the pump outlet is sealed, and then the water supply system is started for performance testing. After testing, the drainage pump needs to be manually removed from the station, and compressed air is used to dry any remaining moisture inside the pump chamber. Finally, qualified and unqualified pumps are moved to their respective areas.

[0004] With the continuous growth of market demand for drainage pumps, the existing testing methods have low integration, low production efficiency, high personnel input, high manufacturing costs, and lack of high-efficiency production capacity, which can no longer meet the requirements of modern large-scale production. Therefore, it is urgent to improve them. Summary of the Invention

[0005] The automatic water performance testing equipment for drainage pumps provided by this invention aims to overcome common industry defects such as low integration, high reliance on manual labor, poor stability of test data, incomplete removal of residual moisture in the pump cavity, easy damage to power cords during product handling, and insufficient testing capacity per station. This invention provides a fully automated testing equipment with a reasonable structure and reliable operation. It achieves unmanned operation throughout the entire process, from tooling plate conveying and positioning, automatic power supply, workpiece transfer, performance parameter testing, removal of residual moisture in the pump cavity, and automatic separation of qualified and unqualified products. This fundamentally eliminates the interference of human factors on the test results, significantly improves testing efficiency and product quality consistency, and reduces enterprise production and manufacturing costs.

[0006] To achieve the above objectives, the present invention provides the following technical solution: Automatic water performance testing equipment for drainage pumps, including Conveyor assembly for conveying tooling plates carrying drainage pumps; The loading and unloading handling mechanism is used to transfer tooling plates between the conveyor assembly and the inspection station, and to return qualified products to the conveyor assembly and transfer unqualified products to the defective product storage line according to the inspection results. The positioning conductive mechanism is used to accurately position the tooling plate transferred to the testing station and automatically supply power to the drainage pump on the tooling plate through conductive contact. The water testing station mechanism is used to test the head, flow rate and pressure performance of the drainage pump, and automatically drain the residual water in the drainage pump cavity after the test is completed. The workpiece handling mechanism is used to bidirectionally clamp and transfer the drainage pump between the tooling plate and the water inspection station mechanism.

[0007] Furthermore, the tooling plate is equipped with a workpiece positioning seat, a connector assembly, and conductive copper pillars. The workpiece positioning seat is fixed on one side of the tooling plate, the connector assembly is used for the drain pump terminal wiring, and the conductive copper pillars are electrically connected to the connector assembly to make contact with the positioning conductive mechanism to achieve power supply.

[0008] Furthermore, the loading and unloading handling mechanism includes a moving base plate, a primary lifting cylinder, a secondary lifting cylinder, and a lifting seat. The primary lifting cylinder is fixedly installed on the moving base plate and is connected to the secondary lifting cylinder to drive its movement. The secondary lifting cylinder is connected to the lifting seat to drive its lifting position. The lifting seat is equipped with a support guide block, and the tooling plate is equipped with a corresponding support guide groove. The support guide block and the support guide groove cooperate to lift the tooling plate. The moving base plate is equipped with a guide rail, and the lifting seat is equipped with a guide slider. The lifting seat moves along the guide rail via the guide slider.

[0009] Furthermore, the loading and unloading conveying mechanism is connected to a translation unit, which is used to drive the loading and unloading conveying mechanism to move horizontally. The translation unit includes a fixed base, a moving plate, a moving guide rail and a drive source. The drive source is installed on the fixed base, and the power output end of the drive source is connected to the moving plate for transmission, which is used to drive the moving plate to move along the moving guide rail. The loading and unloading conveying mechanism is fixedly installed on the moving plate and moves with the moving plate.

[0010] Furthermore, the positioning conductive mechanism includes a telescopic pallet and a telescopic cylinder. The telescopic pallet is equipped with a sliding block and is mounted on a sliding track via the sliding block. The telescopic cylinder is connected to the telescopic pallet and is used to drive the telescopic pallet to reciprocate along the sliding track. The telescopic pallet is used to support the tooling plate. The telescopic pallet is provided with a positioning post, and the tooling plate is provided with a corresponding positioning sleeve. The positioning post and the positioning sleeve cooperate to achieve precise positioning of the telescopic pallet and the tooling plate.

[0011] Furthermore, the positioning conductive mechanism also includes a conductive drive cylinder and a conductive probe. The conductive drive cylinder is connected to the conductive probe and is used to drive the conductive probe to move to abut against the conductive copper pillar. The conductive probe and the conductive copper pillar are adapted to achieve automatic power supply.

[0012] Furthermore, the water inspection station mechanism includes a water tank, a lifting plate, a lifting cylinder, and a negative pressure vacuum generator. The water tank is used to hold water, the lifting plate is equipped with a water inlet storage seat, the water inlet storage seat is equipped with a workpiece positioning ring, the drainage pump is installed in the water inlet storage seat and positioned by the workpiece positioning ring, the lifting cylinder is connected to the lifting plate for driving the lifting plate to switch between the inspection position and the drainage position, so that the water inlet of the drainage pump is immersed in or removed from the liquid surface in the water tank, and the negative pressure vacuum generator is connected to the drainage pipe of the drainage pump through a triangular valve, which is used to drain the residual water in the drainage pump chamber. The triangular valve is used to switch between the drainage mode and the negative pressure water suction mode to realize the connection between inspection drainage and residual water drainage.

[0013] Furthermore, the water inspection station mechanism also includes a sealing cylinder, a sealing head, a workpiece clamping cylinder, and a workpiece clamping plate. The sealing cylinder is connected to the sealing head, and the sealing cylinder drives the sealing head to seal the outlet of the drainage pump. The workpiece clamping cylinder is connected to the workpiece clamping plate, and the workpiece clamping cylinder drives the workpiece clamping plate to clamp the drainage pump.

[0014] Furthermore, the workpiece handling mechanism includes an X-axis linear motor module, a Y-axis servo module, an auxiliary linear guide, a Z-axis lifting servo mechanism, a workpiece servo rotation mechanism, a clamping station gripper, a workpiece clamping block, and a discharge cylinder. The Y-axis servo module is connected to the X-axis linear motor module, and the X-axis linear motor module drives the Y-axis servo module to reciprocate along the auxiliary linear guide. The Z-axis lifting servo mechanism is mounted on the Y-axis servo module and reciprocates along the extension direction of the Y-axis servo module. The workpiece servo rotation mechanism is mounted on the Z-axis lifting servo mechanism and is connected to the clamping station gripper to drive the clamping station gripper to rotate. The clamping station gripper drives the workpiece clamping block to hold the drainage pump. The discharge cylinder is located above the clamping station gripper to assist in unloading and ensure that the drainage pump is placed stably.

[0015] Furthermore, it also includes a power cord auxiliary unit, which is used to restrict the power cord of the drain pump and prevent damage to the power cord. It includes a power cord pushing cylinder and a cable support plate. The output end of the power cord pushing cylinder is connected to the cable support plate, which is used to push the drain pump power cord. The tooling plate is provided with a cable stop plate, which is used to restrict the position of the drain pump power cord.

[0016] The beneficial effects of this invention are as follows: This invention automatically completes all processes, including tooling plate conveying, precise positioning, automatic power supply, workpiece handling, performance testing, residual moisture removal, and qualified / unqualified product sorting, through the coordinated operation of conveyor line components, loading and unloading handling mechanisms, positioning and conductive mechanisms, workpiece handling mechanisms, and water inspection station mechanisms. The entire process requires no manual intervention, and a single device can replace multiple operators, significantly reducing labor intensity and labor costs.

[0017] This invention achieves power supply through the automatic contact between the conductive probe of the positioning conductive mechanism and the conductive copper column of the tooling plate, eliminating the need for manual wiring; in conjunction with the sealing cylinder driving the sealing head to achieve automatic sealing of the water outlet, it completely eliminates the influence of human factors on the test results, fundamentally ensuring the accuracy and consistency of test data such as head, flow rate, pressure, and operating current, and effectively avoiding the problems of missed detection and false detection.

[0018] After the invention is tested, it automatically switches to negative pressure water suction mode through a triangular valve. The strong negative pressure generated by the negative pressure vacuum generator can suck away and discharge the residual water inside the pump chamber, solving the problem of residual water corroding the pump body and contaminating the motor and production line.

[0019] This invention features a dedicated power cord auxiliary unit. Before transporting the tooling plate, the power cord drives the cylinder to move the power cord support plate to a safe position. This, combined with the cable retainer on the tooling plate, limits the power cord's movement, effectively preventing it from being scratched, pulled, or squeezed during transport and ensuring the product's electrical safety and lifespan. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the automatic water performance testing equipment for drainage pumps according to the present invention.

[0021] Figure 2 For the present invention Figure 1 A schematic diagram of the structure after the outer frame is hidden.

[0022] Figure 3 This is a schematic diagram of the loading / unloading conveying mechanism, translation unit, and tooling plate in this invention.

[0023] Figure 4 This is a schematic diagram of the loading / unloading conveying mechanism and the power cord auxiliary unit in this invention.

[0024] Figure 5 This is a schematic diagram of the tooling plate in this invention.

[0025] Figure 6 This is a schematic diagram of the tooling plate from another perspective in this invention.

[0026] Figure 7 This is a schematic diagram of the positioning conductive mechanism in this invention.

[0027] Figure 8 This is a schematic diagram of the water inspection station mechanism and water tank in this invention.

[0028] Figure 9 This is a schematic diagram of the water inspection station mechanism in this invention.

[0029] Figure 10 This is a schematic diagram of the workpiece handling mechanism in this invention.

[0030] In the diagram: 1-Conveyor line assembly; 2-Tooling plate; 21-Workpiece positioning seat; 22-Connector assembly; 23-Conductive copper pillar; 24-Support guide groove; 25-Positioning sleeve; 26-Wire stop plate; 3- Loading and unloading handling mechanism; 31- Moving base plate; 32- Lifting primary cylinder; 33- Lifting secondary cylinder; 34- Lifting seat; 35- Support guide block; 36- Guide rail; 37- Guide slider; 38- Fixed base; 39- Moving plate; 4-Positioning conductive mechanism; 41-Telescopic tray; 42-Telescopic cylinder; 43-Sliding block; 44-Sliding track; 45-Positioning column; 46-Conductive drive cylinder; 47-Conductive probe; 5-Water inspection station mechanism; 51-Water tank; 52-Lifting plate; 53-Lifting cylinder; 54-Water inlet storage seat; 55-Workpiece positioning ring; 56-Sealing cylinder; 57-Sealing head; 58-Workpiece clamping cylinder; 59-Workpiece clamping plate; 6-Workpiece handling mechanism; 61-X-axis linear motor module; 62-Y-axis servo module; 63-Auxiliary linear guide; 64-Z-axis lifting servo mechanism; 65-Workpiece servo rotation mechanism; 66-Clamping station pneumatic gripper; 67-Workpiece clamping block; 68-Feeding cylinder; 7-Power cord auxiliary unit; 71-Power cord push cylinder; 72-Cable support plate. Detailed Implementation

[0031] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0032] like Figures 1 to 10 As shown, this invention presents an automatic water performance testing device for drainage pumps. The device employs a modular design and mainly consists of five parts: a conveyor line assembly 1, a loading / unloading mechanism 3, a positioning and conductive mechanism 4, a water testing station mechanism 5, and a workpiece handling mechanism 6. These mechanisms work collaboratively through an electrical control system to achieve fully automated operation of the drainage pump water performance testing process.

[0033] The overall workflow of this invention is as follows: After the equipment is started, the fixture plate 2 carrying the drainage pump to be tested is transported from the upstream production line to the testing inlet position of the conveyor assembly 1. The loading and unloading conveying mechanism 3 moves the fixture plate 2 from the conveyor assembly 1 to the testing station, and the positioning conductive mechanism 4 accurately positions the fixture plate 2 and automatically supplies power to the drainage pump. Subsequently, the workpiece conveying mechanism 6 clamps the drainage pump from the fixture plate 2 and transfers it to the water testing station mechanism 5. The water testing station mechanism 5 clamps and positions the drainage pump, seals the outlet, and then immerses the drainage pump inlet in the liquid surface, starts the drainage pump to pump water, and after the pumping stabilizes, tests and records performance parameters such as head, flow rate, pressure, and operating current. After the performance test is completed, the water testing station mechanism 5 automatically switches to the negative pressure suction mode to completely drain the residual water in the drainage pump chamber. Finally, the workpiece handling mechanism 6 puts the inspected drainage pump back into the tooling plate 2. According to the inspection results, the loading and unloading handling mechanism 3 sends the tooling plate 2 carrying qualified products back to the conveyor assembly 1 to flow to the downstream process, and moves the tooling plate 2 carrying unqualified products to the defective product storage line.

[0034] The fixture plate 2 serves as the carrier and conveying platform for the drainage pump. Its surface is equipped with a workpiece positioning seat 21, a connector assembly 22, and conductive copper pillars 23. The workpiece positioning seat 21 is fixed to one side of the fixture plate 2, and its shape is adapted to the bottom contour of the drainage pump for precise positioning. The connector assembly 22 is located beside the workpiece positioning seat 21 and is used to connect to the power terminal of the drainage pump. The conductive copper pillars 23 are installed at one end of the fixture plate 2 and are electrically connected to the connector assembly 22 via internal wires, serving as the external power supply interface for the drainage pump. The entire surface of the fixture plate 2 is treated with insulation, waterproofing, and rust prevention to withstand humid testing environments and prevent leakage and corrosion. A wire guide plate 26 is also installed on the fixture plate 2 to restrict the position of the drainage pump power cord, preventing displacement and tangling during transport.

[0035] The conveyor assembly 1 adopts a roller or belt conveyor structure to transport the tooling plate 2 carrying the drainage pump from the upstream production line to the inspection area, and to transport the qualified tooling plate 2 to the downstream production line. The conveyor assembly 1 is equipped with a photoelectric sensor to detect the position of the tooling plate 2. When the tooling plate 2 reaches the inspection inlet position, the photoelectric sensor sends a signal to the control system to control the loading and unloading conveying mechanism 3 to start.

[0036] The loading and unloading conveying mechanism 3 mainly consists of a moving base plate 31, a primary lifting cylinder 32, a secondary lifting cylinder 33, a lifting seat 34, and a translation unit. The primary lifting cylinder 32 is fixedly mounted on the moving base plate 31, with one end connected to the cylinder body of the secondary lifting cylinder 33, driving the secondary lifting cylinder 33 to perform primary lifting motion. The piston rod of the secondary lifting cylinder 33 is connected to the lifting seat 34, driving the lifting seat 34 to perform secondary lifting motion, thus achieving the lifting and lowering of the tooling plate 2. The lifting seat 34 is equipped with a support guide block 35, and the bottom of the tooling plate 2 is correspondingly equipped with a support guide groove 24. The support guide block 35 cooperates with the support guide groove 24 to stably lift the tooling plate 2, preventing tilting and swaying during lifting. The moving base plate 31 is equipped with a guide rail 36, and the lifting seat 34 is equipped with a guide slider 37. The lifting seat 34 moves up and down along the guide rail 36 via the guide slider 37, ensuring the smoothness of the lifting motion.

[0037] The loading / unloading conveying mechanism 3 is mounted on a translation unit, which drives the mechanism 3 to move horizontally between the conveyor assembly 1, the inspection station, and the defective product storage line. The translation unit includes a fixed base 38, a moving plate 39, a moving guide rail, and a drive source. The drive source can be a servo motor or a cylinder, mounted on the fixed base 38, with its power output connected to the moving plate 39. The moving plate 39 is mounted on the moving guide rail via a slider. The base plate 31 of the loading / unloading conveying mechanism 3 is fixedly mounted on the moving plate 39 and moves reciprocally along the moving guide rail together with the moving plate 39.

[0038] The loading and unloading conveying mechanism 3 also integrates a power cord auxiliary unit 7, which includes a power cord push cylinder 71 and a cable support plate 72. The power cord push cylinder 71 is fixedly mounted on the lifting base 34, and its output end is connected to the cable support plate 72. Before lifting the tooling plate 2, the power cord push cylinder 71 drives the cable support plate 72 to extend forward, pushing the power cord of the drain pump to a safe position to prevent the power cord from being scratched, pulled, or squeezed during the handling process.

[0039] The positioning conductive mechanism 4 includes a telescopic pallet 41, a telescopic cylinder 42, a positioning column 45, a conductive drive cylinder 46, and a conductive probe 47. The telescopic pallet 41 is mounted on a sliding track 44 via a sliding block 43. The piston rod of the telescopic cylinder 42 is connected to the telescopic pallet 41 and is used to drive the telescopic pallet 41 to reciprocate along the sliding track 44, thereby extending and retracting the telescopic pallet 41. When the loading and unloading conveying mechanism 3 moves the tooling plate 2 above the inspection station, the telescopic pallet 41 extends below the tooling plate 2, and the lifting seat 34 descends to place the tooling plate 2 on the telescopic pallet 41.

[0040] The upper surface of the telescopic pallet 41 is provided with multiple positioning posts 45, and the bottom of the tooling plate 2 is provided with multiple positioning sleeves 25. When the tooling plate 2 is placed on the telescopic pallet 41, the positioning posts 45 are inserted into the positioning sleeves 25 to achieve precise positioning between the telescopic pallet 41 and the tooling plate 2, ensuring the accuracy of subsequent conductive contact and workpiece handling.

[0041] A conductive drive cylinder 46 and a conductive probe 47 are mounted on one side above the telescopic support plate 41. The piston rod of the conductive drive cylinder 46 is connected to the mounting base of the conductive probe 47, and is used to drive the conductive probe 47 to move towards the fixture plate 2. After the fixture plate 2 is positioned, the conductive drive cylinder 46 drives the conductive probe 47 to move, so that the top of the conductive probe 47 is in close contact with the conductive copper post 23 at the bottom of the fixture plate 2, realizing automatic conduction between the external power supply and the drainage pump without manual wiring.

[0042] The water testing station mechanism 5 is the core testing unit of the equipment. The water testing station mechanism 5 includes a water tank 51 and a liquid level balancing water supply and circulation system. The liquid level balancing water supply and circulation system is connected to the water tank 51 and can automatically replenish and adjust the water volume in the water tank 51 to maintain a constant liquid level in the water tank 51 and ensure the consistency of testing conditions. In this embodiment, the water tank 51 is equipped with 12 independent water testing stations. The 12 water testing stations operate synchronously and independently, and the testing process of each water testing station does not interfere with each other. It can simultaneously perform performance testing and residual water drainage operations on 12 drainage pumps.

[0043] The water inspection station mechanism 5 includes a lifting plate 52, a lifting cylinder 53, a water inlet storage seat 54, a workpiece positioning ring 55, a workpiece clamping cylinder 58, a workpiece clamping plate 59, a sealing cylinder 56, a sealing head 57, and a negative pressure vacuum generator. The lifting plate 52 is installed inside the water tank 51. The piston rod of the lifting cylinder 53 is connected to the lifting plate 52 for transmission, driving the lifting plate 52 to switch up and down between the inspection position and the drainage position. The water inlet storage seat 54 is fixedly installed on the lifting plate 52. The top of the water inlet storage seat 54 is provided with a workpiece positioning ring 55, the shape of which is adapted to the contour of the water inlet of the drainage pump for precise positioning of the drainage pump. The workpiece clamping cylinder 58 and the workpiece clamping plate 59 are located beside the water inlet storage seat 54. The workpiece clamping cylinder 58 drives the workpiece clamping plate 59 to clamp and fix the drainage pump placed on the water inlet storage seat 54. The sealing cylinder 56 and the sealing head 57 are located on one side of the water inlet storage seat 54. The sealing cylinder 56 drives the sealing head 57 to extend forward and seal the outlet of the drainage pump.

[0044] The three ports of the angle valve are connected to the drain pipe of the drain pump, the drain pipeline, and the negative pressure vacuum generator, respectively. During the performance testing phase, the angle valve switches to drain mode, and the water pumped by the drain pump flows back to the water tank 51 through the drain pipeline, forming a circulating water supply. During the residual water removal phase, the angle valve automatically switches to negative pressure suction mode, and the negative pressure vacuum generator starts, creating a strong negative pressure in the drain pipeline to remove residual water from the drain pump chamber. The workpiece handling mechanism 6 adopts a four-axis coordinate robot structure, which can realize linear motion in the X, Y and Z directions and rotational motion around the Z axis, and can accurately transfer the drainage pump between the tooling plate 2 and any water inspection station.

[0045] The four-axis coordinate robot mainly consists of an X-axis linear motor module 61, a Y-axis servo module 62, an auxiliary linear guide rail 63, a Z-axis lifting servo mechanism 64, a workpiece servo rotation mechanism 65, a gripper 66, a workpiece clamping block 67, and a feeding cylinder 68. The X-axis linear motor module 61 is arranged along the length of the equipment. The Y-axis servo module 62 is mounted on the X-axis linear motor module 61 and the auxiliary linear guide rail 63 via a slider. The X-axis linear motor module 61 drives the Y-axis servo module 62 to reciprocate along the X-axis. The Z-axis lifting servo mechanism 64 is mounted on the Y-axis servo module 62 via a slider. The Y-axis servo module 62 drives the Z-axis lifting servo mechanism 64 to reciprocate along the Y-axis. The workpiece servo rotation mechanism 65 is installed at the bottom of the Z-axis lifting servo mechanism 64, and its output shaft is connected to the mounting base of the gripper 66, used to drive the gripper 66 to rotate around the Z-axis to adjust the angle of the drainage pump. The two jaws of the gripper 66 at the clamping station are each equipped with a workpiece clamping block 67. The workpiece clamping block 67 is made of flexible material, which can firmly clamp the drainage pump without damaging the pump body surface. The discharge cylinder 68 is located above the gripper 66 at the clamping station, and its piston rod extends downward. When it is necessary to release the drainage pump, the discharge cylinder 68 is activated to help push the drainage pump away from the workpiece clamping block 67, ensuring that the drainage pump can be placed stably on the tooling plate 2 or the water inlet storage seat 54.

[0046] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. Automatic water performance testing equipment for drainage pumps, including Conveyor assembly for conveying tooling plates carrying drainage pumps; Its features are: Also includes The loading and unloading conveying mechanism is used to transfer the tooling plate between the conveyor assembly and the inspection station, and to return qualified products to the conveyor assembly and transfer unqualified products to the defective product storage line according to the inspection results. A positioning conductive mechanism is used to accurately position the tooling plate transferred to the testing station and automatically supply power to the drainage pump on the tooling plate through conductive contact. The water testing station mechanism is used to test the head, flow rate and pressure performance of the drainage pump, and automatically drain the residual water in the drainage pump cavity after the test is completed. The workpiece handling mechanism is used to bidirectionally clamp and transfer the drainage pump between the tooling plate and the water inspection station mechanism.

2. The automatic water performance testing equipment for drainage pumps according to claim 1, characterized in that: The tooling plate is provided with a workpiece positioning seat, a connector assembly and a conductive copper pillar. The workpiece positioning seat is fixed to one side of the tooling plate. The connector assembly is used for the drain pump terminal wiring. The conductive copper pillar is electrically connected to the connector assembly and is used to contact the positioning conductive mechanism to achieve power conduction.

3. The automatic water performance testing equipment for drainage pumps according to claim 1, characterized in that: The loading and unloading conveying mechanism includes a moving base plate, a primary lifting cylinder, a secondary lifting cylinder, and a lifting seat. The primary lifting cylinder is fixedly installed on the moving base plate and is connected to the secondary lifting cylinder to drive its movement. The secondary lifting cylinder is connected to the lifting seat to drive its lifting position. The lifting seat is provided with a support guide block, and the tooling plate is provided with a corresponding support guide groove. The support guide block and the support guide groove cooperate to lift the tooling plate. The moving base plate is provided with a guide rail, and the lifting seat is equipped with a guide slider. The lifting seat moves along the guide rail via the guide slider.

4. The automatic water performance testing equipment for drainage pumps according to claim 1, characterized in that: The loading and unloading conveying mechanism is connected to a translation unit, which is used to drive the loading and unloading conveying mechanism to move horizontally. The translation unit includes a fixed base, a movable plate, a movable guide rail, and a drive source. The drive source is installed on the fixed base, and the power output end of the drive source is connected to the movable plate for driving the movable plate to move along the movable guide rail. The loading and unloading conveying mechanism is fixedly installed on the movable plate and moves with the movable plate.

5. The automatic water performance testing equipment for drainage pumps according to claim 1, characterized in that: The positioning conductive mechanism includes a telescopic support plate and a telescopic cylinder. The telescopic support plate is equipped with a sliding block and is mounted on a sliding track via the sliding block. The telescopic cylinder is connected to the telescopic support plate and is used to drive the telescopic support plate to reciprocate along the sliding track. The telescopic support plate is used to support the tooling plate. The telescopic support plate is provided with a positioning post, and the tooling plate is provided with a corresponding positioning sleeve. The positioning post and the positioning sleeve cooperate to achieve precise positioning of the telescopic support plate and the tooling plate.

6. The automatic water performance testing equipment for drainage pumps according to claim 2, characterized in that: The positioning conductive mechanism further includes a conductive drive cylinder and a conductive probe. The conductive drive cylinder is connected to the conductive probe and is used to drive the conductive probe to move to abut against the conductive copper pillar. The conductive probe and the conductive copper pillar are adapted to achieve automatic power supply.

7. The automatic water performance testing equipment for drainage pumps according to claim 1, characterized in that: The water inspection station mechanism includes a water tank, a lifting plate, a lifting cylinder, and a negative pressure vacuum generator. The water tank is used to hold water. The lifting plate is equipped with a water inlet storage seat, and the water inlet storage seat is equipped with a workpiece positioning ring. A drainage pump is installed in the water inlet storage seat and positioned by the workpiece positioning ring. The lifting cylinder is drivenly connected to the lifting plate and is used to drive the lifting plate to switch between the inspection position and the drainage position, so that the water inlet of the drainage pump is immersed in or detached from the liquid surface in the water tank. The negative pressure vacuum generator is connected to the drainage pipe of the drainage pump through a triangular valve and is used to drain the residual water in the drainage pump chamber. The triangular valve is used to switch between drainage mode and negative pressure water suction mode to realize the connection between inspection drainage and residual water drainage.

8. The automatic water performance testing equipment for drainage pumps according to claim 1, characterized in that: The water inspection station mechanism also includes a sealing cylinder, a sealing head, a workpiece clamping cylinder, and a workpiece clamping plate. The sealing cylinder is connected to the sealing head, and the sealing cylinder drives the sealing head to seal the outlet of the drainage pump. The workpiece clamping cylinder is connected to the workpiece clamping plate, and the workpiece clamping cylinder drives the workpiece clamping plate to clamp the drainage pump.

9. The automatic water performance testing equipment for drainage pumps according to claim 1, characterized in that: The workpiece handling mechanism includes an X-axis linear motor module, a Y-axis servo module, an auxiliary linear guide rail, a Z-axis lifting servo mechanism, a workpiece servo rotation mechanism, a clamping station gripper, a workpiece clamping block, and a discharge cylinder. The Y-axis servo module is connected to the X-axis linear motor module, and the X-axis linear motor module drives the Y-axis servo module to reciprocate along the auxiliary linear guide rail. The Z-axis lifting servo mechanism is mounted on the Y-axis servo module and reciprocates along the extension direction of the Y-axis servo module. The workpiece servo rotation mechanism is mounted on the Z-axis lifting servo mechanism and is connected to the clamping station gripper to drive the clamping station gripper to rotate. The clamping station gripper drives the workpiece clamping block to hold the drainage pump. The discharge cylinder is located above the clamping station gripper to assist in unloading and ensure that the drainage pump is placed stably.

10. The automatic water performance testing equipment for drainage pumps according to claim 1, characterized in that: It also includes a power cord auxiliary unit, which is used to restrict the power cord of the drain pump and prevent damage to the power cord. It includes a power cord pushing cylinder and a cable support plate. The output end of the power cord pushing cylinder is connected to the cable support plate. The cable support plate is used to push the drain pump power cord. The tooling plate is provided with a cable baffle plate, which is used to restrict the position of the drain pump power cord.

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