Pump body transfer test system and test method

Abstract

According to the pump body transfer test system and test method provided by the invention, after the to-be-tested pump bodies are loaded orderly through the loading mechanism, the to-be-tested pump bodies are transferred into the connection transmission mechanism through the transfer mechanism; under cooperation of the connection transmission mechanism and the test mechanism, airtightness detection of a bottom gas path and a lateral gas path of a to-be-tested pump body is realized, the pressing assembly can fix the to-be-tested pump body, and the bottom plugging assembly and the lateral plugging assembly are used for plugging the bottom gas path and the lateral gas path of the to-be-tested pump body. The air tightness testing device is simple in structure and respectively connected with external air tightness testing equipment, can test a bottom air path under the condition that the motor is not electrified, and can test a lateral air path under the condition that the motor is electrified, so that a stable, efficient and accurate testing process is realized. Compared with the prior art, the full-process automation of the pump body from transferring to testing is achieved, and the pump body testing device has the advantages of being convenient to operate, high in detection precision, high in efficiency, suitable for batch continuous detection and the like.

Description

Technical Field

[0001] This invention relates to the field of testing technology, specifically to a pump body transfer testing system and testing method. Background Technology

[0002] To achieve coordinated power output and air circuit regulation, the pump body typically integrates core structures such as a motor, transmission mechanism, and air circuit channels. The air circuit system is specifically divided into a bottom air circuit and a side air circuit. The bottom air circuit is mainly used for pre-charging and pressure balancing during the pump body's static standby or initial start-up phase, which is the foundation for ensuring the smooth start-up of the pump body. The side air circuit needs to be deeply linked with the motor's working state. During the operation of the pump body driven by the motor, it realizes the precise distribution, pressure regulation, and sealing protection of high-pressure airflow, which directly affects the stability of the pump body's fluid delivery pressure and operational safety. Therefore, the sealing test of the bottom air circuit and the side air circuit is a key link to ensure the pump body's factory quality and avoid fluid leakage or air circuit failure during operation.

[0003] Based on the pump's design standards and actual operating conditions, the sealing tests for the bottom and side air passages need to be conducted under different conditions: For the bottom air passage, since it only functions under the pump's normal non-operating conditions, the sealing test must be completed under these conditions. Currently, the testing verifies whether there is gas leakage in the bottom air passage by simulating the pump's standby, storage, or assembly stages. If the bottom air passage seal fails, it can easily lead to slow pressure build-up during pump startup, and external impurities can enter the pump through leaks, causing wear on transmission components or motor overload during startup; for the side air passage... The working state of the air circuit is closely related to the operation of the motor. The vibration, speed fluctuation and internal pressure change of the pump body generated after the motor starts will directly affect the lateral air circuit. Therefore, a sealing test must be carried out under the motor working state to accurately simulate the dynamic pressure load and vibration environment borne by the lateral air circuit in actual operation. If there is a sealing defect in the lateral air circuit under this state, it will lead to high-pressure air leakage, which will not only reduce the pump fluid delivery efficiency and increase energy consumption, but may also trigger the pump shutdown protection due to a sudden drop in air circuit pressure, and even pose a risk of fluid leakage polluting the environment or causing safety accidents.

[0004] However, the industry currently lacks dedicated testing equipment for the sealing of the bottom and side air passages of pumps. Existing testing relies on general-purpose air passage testing instruments combined with temporary testing fixtures, which has significant technical limitations: testing the bottom air passage requires fixing the pump body, calibrating and connecting each bottom air passage interface one by one, and the accuracy of the test can be affected by interface misalignment or improper parameter settings; testing the side air passage requires repeating the above operations, as well as setting up an additional motor power supply system, speed control system and pump body fixing bracket to ensure stable operation of the pump body driven by the motor, while manually coordinating the synchronization of air passage testing and motor operation, making the operation process complex and time-consuming.

[0005] The shortcomings of this traditional testing method are particularly prominent: on the one hand, the testing efficiency is extremely low. The air circuit test of a single pump body requires multiple steps such as tooling setup, parameter adjustment, and state switching. The testing cycle is difficult to meet the high-efficiency testing requirements of mass production scenarios, resulting in an extended pump body delivery cycle. On the other hand, the testing accuracy is difficult to guarantee. Repeated connection of the air circuit interface is prone to problems such as poor sealing and gap deviation. Moreover, the synchronization between the motor's working state and the air circuit test cannot be accurately controlled, and it cannot truly reflect the air circuit sealing performance of the pump body under actual working conditions.

[0006] In summary, existing methods for testing the sealing performance of the bottom and side air passages of pumps can no longer meet the requirements of industrial production for testing efficiency, accuracy, and adaptability. Developing a dedicated device that can automatically adapt to the pump structure, accurately switch testing functions, and efficiently complete air passage sealing tests has become a pressing technical challenge for the pump manufacturing industry. Summary of the Invention

[0007] Therefore, the technical problem to be solved by the present invention is to overcome the problem of poor accuracy and efficiency in pump body airtightness testing in the prior art, and to provide a pump body transfer testing system and testing method.

[0008] To solve the above technical problems, the present invention provides a pump body transfer and testing system, comprising: a feeding mechanism, a transfer mechanism, a connecting and transmitting mechanism, and a testing mechanism. The feeding mechanism includes a transmission module and multiple first fixtures, which move along the transmission module, with the pump body to be tested located within the first fixtures. The connecting and transmitting mechanism includes a turntable and multiple second fixtures. The testing mechanism and the transfer mechanism are located on opposite sides of the connecting and transmitting mechanism. The turntable has multiple transfer stations, and the multiple second fixtures are respectively disposed in the multiple transfer stations. The transfer mechanism moves the pump body to be tested from the first fixtures to the second fixtures, and then transfers the pump body to be tested to the working range of the testing mechanism via the turntable. The testing mechanism includes a bottom sealing component, a side sealing component, a pressing component, and a circuit connection component. The bottom sealing component is configured to... The lateral sealing assembly is externally connected to an airtightness testing device. The bottom sealing assembly is located below the turntable and includes a first sealing driver and a first sealing column. The first sealing column moves vertically toward the bottom air passage of the pump body under test via the first sealing driver. The lateral sealing assembly is located on one side of the turntable and includes a second sealing driver and a second sealing column. The second sealing column moves horizontally toward the lateral air passage of the pump body under test via the second sealing driver. The pressure assembly is located above the turntable and includes a pressure driver and a pressure block. The pressure block moves toward the top surface of the pump body under test via the pressure driver. The circuit connection assembly includes a connection lifting driver and a connection component. The connection component is externally connected to a power supply device and can move toward the motor electrical interface of the pump body under test via the connection lifting driver.

[0009] In one embodiment of the present invention, the bottom sealing assembly includes a first bracket and a first mating nozzle. The first bracket is disposed at the bottom of the turntable, the first sealing actuator is disposed on the first bracket, and the first mating nozzle is disposed on the first sealing actuator and communicates with an airtightness testing device. The lateral sealing assembly includes a second bracket and a second mating nozzle. The second bracket is disposed on one side of the turntable, the second sealing actuator is disposed on the second bracket, and the second mating nozzle is disposed on the second sealing actuator and communicates with an airtightness testing device.

[0010] In one embodiment of the present invention, the bottom sealing assembly includes a docking platform located at the top of the first bracket and having a docking hole thereon. The first sealing column can pass through the docking hole and communicate with the bottom air passage of the pump body to be tested.

[0011] In one embodiment of the present invention, the testing mechanism further includes a frame, on which a first lifting module and a second lifting module are provided extending along its height direction, the lateral sealing assembly is connected to the frame, the pressing block moves along the first lifting module toward / away from the pump body to be tested, and the docking member moves along the second lifting module toward / away from the pump body to be tested.

[0012] In one embodiment of the present invention, the pressing assembly includes a pressing slide, the pressing driver is disposed on the top of the frame, the pressing slide is connected to the power output end of the pressing driver and slidably connected to the first lifting module, the pressing block is disposed on the pressing slide and has a contoured through groove in its middle; the circuit docking assembly includes a docking slide, a conductive member and a plug, the docking lifting driver is disposed on the top of the frame, the docking slide is connected to the power output end of the docking lifting driver and slidably connected to the second lifting module, the plug can be docked with an external power supply device, one end of the conductive member is connected to the plug and the other end is connected to the docking member, the docking member can pass through the contoured through groove and be electrically connected to the motor electrical interface of the pump body to be tested.

[0013] In one embodiment of the present invention, the transmission module is provided with multiple loading stations, and the loading mechanism further includes multiple lifting components. The multiple lifting components are correspondingly arranged below the multiple loading stations. Any lifting component includes a lifting driver and a pushing member. The pushing member is connected to the power output end of the lifting driver to lift the first fixture that has moved to the corresponding loading station until the first fixture is detached from the transmission module.

[0014] In one embodiment of the present invention, the feeding mechanism further includes a plurality of first detection components, which are correspondingly disposed on one side of a plurality of feeding stations. Each of the first detection components includes a first mounting frame, a first material detector, and a first attitude detector. The first mounting frame is connected to the outer wall of the transmission module. The first material detector and the first attitude detector are both disposed on the first mounting frame. The first material detector is disposed facing the support surface of the first fixture, and the first attitude detector is disposed above the first material detector. The interval between the detection height of the first attitude detector and the detection height of the first material detector is the same as the height of the pump body to be tested.

[0015] In one embodiment of the present invention, the transfer mechanism includes a robotic arm, a connecting frame, and at least one clamping component. The robotic arm is disposed between the feeding mechanism and the connecting and transferring mechanism. The connecting frame is disposed at the moving end of the robotic arm. At least one of the clamping components is disposed on the connecting frame to clamp the pump body to be tested.

[0016] In one embodiment of the present invention, the clamping assembly includes a positioning plate, a gripper driver, and two opening and closing grippers. The gripper driver is connected to the connecting frame, and the two opening and closing grippers are respectively connected to two power output ends of the gripper driver for relative opening and closing movement. The positioning plate is disposed on one side of the gripper driver, and a positioning pin is provided at its bottom. The positioning pin can be inserted into the first docking pin hole of the first fixture / the second docking pin hole of the second fixture.

[0017] In one embodiment of the present invention, each of the transfer stations is provided with a clearance opening, and the bottom of the second fixture is provided with an air passage clearance hole communicating with the clearance opening. The bottom air passage of the pump body to be tested passes through the air passage clearance hole and the clearance opening to the bottom of the turntable.

[0018] In one embodiment of the present invention, the connection and transmission mechanism includes a rotary driver and a second detection component. The rotary driver is connected to the center of the bottom surface of the turntable, and the second detection component is disposed at the center of the top surface of the turntable. The second detection component includes a second mounting bracket, a second material detector, and a second attitude detector. The second mounting bracket is connected to the turntable, and the second material detector and the second attitude detector are both disposed on the second mounting bracket. The second material detector is disposed facing the support surface of the second fixture, and the second attitude detector is disposed above the second material detector. The interval between the detection height of the second attitude detector and the detection height of the second material detector is the same as the height of the pump body to be tested.

[0019] In one embodiment of the present invention, the first sealing column is provided with a first sealing ring at its end, and the second sealing column is provided with a second sealing ring at its end; the pump body transfer test system further includes a machine base, a housing, and a control mechanism, the control mechanism being disposed inside the machine base, the housing being fastened to the edge of the machine base, and the feeding mechanism, the transfer mechanism, the connecting transmission mechanism, and the test mechanism being disposed on the machine base and respectively connected to the control mechanism.

[0020] This invention also provides a pump body transfer test method, which performs a pump body airtightness test using the aforementioned pump body transfer test system. The method includes: Step S1, feeding the pump body to be tested using a feeding mechanism; Step S2, transferring the pump body to be tested from the feeding mechanism to one side of the connecting transmission mechanism using a transfer mechanism; Step S3, moving the pump body to be tested to the working range of the test mechanism using a turntable connected to the transmission mechanism, while simultaneously transferring another pump body to be tested from the feeding mechanism to the other side of the connecting transmission mechanism; Step S4, first fixing the pump body to be tested using a pressing component, then sealing the bottom air passage of the pump body using a bottom sealing component, and simultaneously sealing the side air passage of the pump body using a side sealing component; Step S5, first performing an airtightness test on the bottom air passage of the pump body, then connecting the motor electrical interface of the pump body to an external power supply device using a circuit connection component, and performing an airtightness test on the side air passage of the pump body while it is powered on.

[0021] In one embodiment of the present invention, the pump body transfer test system performs synchronous testing on at least two pump bodies to be tested through at least two test mechanisms. The interval distance between test points of adjacent test mechanisms, the interval distance between two adjacent transfer stations on the turntable, the interval distance between two adjacent clamping components in the transfer mechanism, and the interval distance between two adjacent loading stations in the loading mechanism are all the same.

[0022] The technical solution of the present invention has the following advantages over the prior art: The pump body transfer testing system and method of this invention involves feeding the pump body to be tested in an orderly manner through a feeding mechanism, and then transferring the pump body to be tested to a connecting transmission mechanism through a transfer mechanism. With the cooperation of the connecting transmission mechanism and the testing mechanism, the airtightness of the bottom air passage and the side air passage of the pump body to be tested is detected. The pressing component can fix the pump body to be tested, and the bottom sealing component and the side sealing component are used to seal the bottom air passage and the side air passage of the pump body to be tested. They are respectively connected to external airtightness testing equipment. The bottom air passage can be tested when the motor is not powered on, and the side air passage can be tested when the motor is powered on, thereby achieving a stable, efficient and accurate testing process.

[0023] Compared with existing technologies, this application, on the one hand, forms an automated material flow chain through the cooperation of multiple structures, avoiding the positioning deviations and low efficiency problems that are prone to occur in traditional feeding and transfer, and improving the overall continuity and stability of operations; on the other hand, the testing mechanism, through the linkage of the bottom sealing component, the side sealing component and the air tightness testing equipment, can simultaneously perform sealing tests on the bottom and side air passages of the pump body, and with the auxiliary fixation of the pressing component, ensures the accuracy of sealing and the reliability of testing; at the same time, the circuit docking component can automatically complete the docking with the pump body motor electrical interface and realize power supply, integrating the air tightness testing of different air passages into the same system, solving the problems of complex operation and long time consumption caused by the separation of multiple devices and the dispersion of processes in traditional testing, and significantly improving testing efficiency and integration.

[0024] Overall, this application achieves full automation of the pump body from transportation to testing, and has the advantages of easy operation, high detection accuracy, high efficiency, and suitability for batch continuous testing. Attached Figure Description

[0025] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0026] Figure 1 This is a three-dimensional structural diagram of the pump body to be tested; Figure 2 This is a three-dimensional structural schematic diagram of the pump body transfer test system in a preferred embodiment of the present invention; Figure 3 yes Figure 2 A schematic diagram of the internal structure of the pump body transfer test system shown. Figure 4 yes Figure 3 The diagram shows a three-dimensional structure of the feeding mechanism, the transfer mechanism, the connecting and transmitting mechanism, and the testing mechanism in the pump body transfer test system. Figure 5 yes Figure 3 A three-dimensional structural diagram of the feeding mechanism in the pump body transfer test system shown. Figure 6 yes Figure 5 Enlarged structural diagram of point A in the feeding mechanism shown; Figure 7 yes Figure 3 A three-dimensional structural diagram of the transfer mechanism in the pump body transfer test system shown. Figure 8 yes Figure 7 A three-dimensional structural diagram of the connecting frame and clamping components in the transfer mechanism shown; Figure 9 yes Figure 3A three-dimensional structural diagram of the connection and transmission mechanism in the pump body transfer test system shown. Figure 10 yes Figure 4 A three-dimensional structural diagram of the bottom sealing component in the test mechanism shown; Figure 11 yes Figure 4 Enlarged structural diagram at point B; Figure 12 yes Figure 4 A three-dimensional structural diagram of the test mechanism shown, including the frame, lateral sealing assembly, circuit connection assembly, and pressure assembly. Figure 13 yes Figure 12 Side view of the frame, lateral sealing assembly, circuit connection assembly, and pressure assembly shown.

[0027] Explanation of reference numerals in the accompanying drawings: 100, housing; 200, machine base; 300, feeding mechanism; 310, transfer module; 320, first fixture; 321, first mating pin hole; 330, lifting assembly; 331, lifting driver; 340, first detection assembly; 341, first mounting bracket; 342, first material detector; 343, first attitude detector; 400, transfer mechanism; 410, robotic arm; 420, connecting frame; 4 30. Clamping assembly; 431. Positioning plate; 4311. Positioning pin; 432. Gripper driver; 433. Opening and closing gripper; 500. Connecting and transferring mechanism; 510. Turntable; 520. Second fixture; 521. Second docking pin hole; 530. Rotary driver; 540. Second detection assembly; 541. Second mounting bracket; 542. Second material detector; 543. Second attitude detector; 600. Testing mechanism; 610. Frame; 611. First lifting module; 612. Second lifting module; 620. Bottom sealing assembly; 621. First bracket; 622. First sealing actuator; 623. First sealing post; 6231. First sealing ring; 624. Docking platform; 6241. Docking hole; 625. First docking nozzle; 630. Lateral sealing assembly; 631. Second bracket; 632. Second sealing actuator; 633. Second sealing post; 6331. Second sealing ring 634. Sealing ring; 640. Second mating nozzle; 641. Circuit mating assembly; 642. Mating frame; 643. Mating lifting driver; 644. Plug; 645. Conductor; 646. Mating component; 650. Pressing assembly; 651. Pressing driver; 652. Pressing block; 6521. Contouring through groove; 653. Pressing slide; 700. Pump body to be tested; 710. Bottom air passage; 720. Side air passage; 730. Motor electrical interface. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0029] It should be noted that, see Figure 1 As shown, a conventional pump body under test includes a bottom air passage 710, a side air passage 720, and a motor electrical interface 730. The bottom air passage 710 and the side air passage 720 are the core channels for gas transmission or fluid control within the pump body; their sealing performance directly determines whether the pump body has a risk of leakage and are the core objects of airtightness testing. The motor electrical interface 730 is a key connection point for the pump body's power source, providing electrical energy to the pump motor through an external power supply device to drive the motor and achieve gas delivery through the air passage. It is also an important interface for verifying the pump body's circuit functions. Specifically, the side air passage 720 of a conventional pump body is usually linked to the internal air passage system driven by the motor. The side air passage 720 is only in a closed or open state when the motor is powered on. At this point, the actual sealing performance of the side air passage 720 can be truly reflected, and the test results are more in line with the actual operating conditions of the pump body. Therefore, this application conducts an airtightness test on the bottom air passage 710 when the motor is not powered on, and then conducts an airtightness test on the side air passage 720 when the motor is powered on, so as to highly adapt to the actual test requirements.

[0030] Example 1: See Figures 2 to 4As shown, this embodiment provides a pump body transfer testing system, which includes: a feeding mechanism 300, a transfer mechanism 400, a connecting transmission mechanism 500, and a testing mechanism 600. The feeding mechanism 300 includes a transmission module 310 and a plurality of first fixtures 320, which move along the transmission module 310, with the pump body 700 to be tested located within the first fixtures 320. The connecting transmission mechanism 500 includes a turntable 510 and a plurality of second fixtures 520. The testing mechanism 600 and the transfer mechanism 400 are respectively located within the connecting transmission mechanism 600. On both sides of the mechanism 500, the turntable 510 is provided with multiple transfer stations, and multiple second fixtures 520 are respectively set in the multiple transfer stations. After the transfer mechanism 400 moves the pump body 700 to be tested from the first fixture 320 to the second fixture 520, the turntable 510 transfers the pump body 700 to be tested to the working range of the testing mechanism 600. The testing mechanism 600 includes a bottom sealing component 620, a side sealing component 630, a pressing component 650, and a circuit connection component 640. The bottom sealing component 620 and the side sealing component 630 are respectively set in the second fixture 520. All the lateral sealing components 630 are externally connected to airtightness testing equipment. The bottom sealing component 620 is located below the turntable 510 and includes a first sealing actuator 622 and a first sealing post 623. The first sealing post 623 moves vertically toward the bottom air passage 710 of the pump body 700 under test via the first sealing actuator 622. The lateral sealing component 630 is located on one side of the turntable 510 and includes a second sealing actuator 632 and a second sealing post 633. The second sealing post 633 is connected to the second sealing actuator 622 via the second sealing actuator 622. 32. Moves horizontally toward the lateral air passage 720 of the pump body 700 under test; The pressure assembly 650 is disposed above the turntable 510, and includes a pressure driver 651 and a pressure block 652. The pressure block 652 moves toward the top surface of the pump body 700 under test through the pressure driver 651; The circuit docking assembly 640 includes a docking lifting driver 642 and a docking piece 645. The docking piece 645 is externally powered and can move toward the motor electrical interface 730 of the pump body 700 under test through the docking lifting driver 642.

[0031] The pump body transfer testing system described in this embodiment uses a feeding mechanism 300 to orderly feed the pump body 700 to be tested, and then a transfer mechanism 400 to transfer the pump body 700 to be tested to a connecting transmission mechanism 500. With the cooperation of the connecting transmission mechanism 500 and the testing mechanism 600, the air tightness of the bottom air passage 710 and the side air passage 720 of the pump body 700 to be tested is realized. The pressing component 650 can fix the pump body 700 to be tested, and the bottom sealing component 620 and the side sealing component 630 are used to seal the bottom air passage 710 and the side air passage 720 of the pump body 700 to be tested. They are respectively connected to external air tightness testing equipment. The bottom air passage 710 can be tested when the motor is not powered on, and the side air passage 720 can be tested when the motor is powered on, thereby realizing a stable, efficient and accurate testing process.

[0032] Furthermore, the pump body transfer testing system also includes a machine base 200, a housing 100, and a control mechanism. The control mechanism is located inside the machine base 200, and the housing 100 is fastened to the edge of the machine base 200. The feeding mechanism 300, the transfer mechanism 400, the connecting transmission mechanism 500, and the testing mechanism 600 are all located on the machine base 200 and are respectively connected to the control mechanism. In this embodiment, the machine tool 200 serves as a unified support platform, providing a stable installation benchmark for the feeding mechanism 300, the transfer mechanism 400, the connecting and transmitting mechanism 500, and the testing mechanism 600. This ensures the stable positional accuracy of each component during operation and avoids affecting the coordination accuracy due to vibration or displacement. The housing 100 is fastened to the edge of the machine tool 200, which not only effectively isolates dust, impurities, and interference from the external environment, protecting the cleanliness and operational safety of the internal mechanisms, but also forms a closed working space, reducing noise and operational risks. The control mechanism is integrated inside the machine tool 200 and connected to each actuator. Through unified programming and logic control, it achieves full-process automated collaboration, ensuring the consistency and efficiency of batch testing.

[0033] See Figure 5 and Figure 6 As shown, the feeding mechanism 300 is used to achieve the orderly supply of the pump body 700 to be tested. The transmission module 310 drives multiple first fixtures 320 to move continuously along a set path through stable power output, ensuring that the pump body enters the transfer range in a rhythmic manner. The first fixtures 320 accurately position and fix the pump body through a structure adapted to the shape of the pump body, avoiding posture confusion caused by vibration and offset during the transmission process. This provides a unified benchmark for the subsequent gripping by the transfer mechanism 400, reduces positioning deviation from the source, and ensures the efficiency and stability of the feeding process, which is the foundation for realizing full-process automation.

[0034] Furthermore, the transmission module 310 in this embodiment is provided with multiple loading stations, and the loading mechanism 300 also includes multiple lifting components 330. These lifting components 330 are correspondingly disposed below the multiple loading stations. Each lifting component 330 includes a lifting driver 331 and a pushing member. The pushing member is connected to the power output end of the lifting driver 331 to lift the first fixture 320 that has moved to the corresponding loading station until the first fixture 320 is detached from the transmission module 310. The multiple loading stations provide clear stopping points for the first fixture 320, ensuring that the pump body 700 to be tested can wait for transfer at a preset position according to the rhythm, avoiding transfer deviations caused by uncertain positions during transmission. Furthermore, when transferring multiple pump bodies, the stations can be used to determine the interval distance between adjacent pump bodies, so that it can adapt to the clamping action of the transfer mechanism 400. The lifting assembly 330 below each loading station drives the pushing component upward through the lifting driver 331, which can lift the first fixture 320 that has moved to the station and detach it from the transfer module 310. On the one hand, this can eliminate the impact of the vibration of the transfer module 310 during operation on the first fixture 320, ensuring the stability of the transfer mechanism 400 when gripping the pump body. On the other hand, it can physically isolate the first fixture 320 from the transfer module 310, preventing the fixture from moving accidentally with the transfer module 310 during the transfer process. This provides a reliable positioning guarantee for the transfer mechanism 400 to accurately grip the pump body and smoothly transfer it to the connecting transfer mechanism 500, further improving the accuracy and safety of the loading process.

[0035] Furthermore, the feeding mechanism 300 also includes a plurality of first detection components 340, which are respectively disposed on one side of a plurality of feeding stations. Each of the first detection components 340 includes a first mounting frame 341, a first material detector 342, and a first attitude detector 343. The first mounting frame 341 is connected to the outer wall of the transmission module 310. The first material detector 342 and the first attitude detector 343 are both disposed on the first mounting frame 341. The first material detector 342 is disposed facing the support surface of the first fixture 320, and the first attitude detector 343 is disposed above the first material detector 342. The interval between the detection height of the first attitude detector 343 and the detection height of the first material detector 342 is the same as the height of the pump body to be tested. Specifically, the first mounting bracket 341 provides a stable mounting platform for the first material detector 342 and the first attitude detector 343, ensuring that their detection directions are accurately aligned with the first fixture 320. The first material detector 342 faces the support surface of the first fixture 320, allowing it to directly detect whether the pump body 700 to be tested is placed inside the fixture, effectively preventing the "empty" first fixture 320 from entering subsequent processes and reducing invalid transfers. The first attitude detector 343 is positioned above it, and the height difference between the two detectors is consistent with the height of the pump body 700 to be tested. If the pump body is stably placed inside the fixture, the attitude detector can detect the top of the pump body; if the pump body is tilted, tipped over, or not fully placed in the fixture, the attitude detector quickly identifies abnormal pump body posture. The collaboration of these two detectors can pre-screen for empty or unqualified postures before transfer, avoiding problems such as failed subsequent transfer and grasping, misalignment of test components, etc., due to missing materials or posture deviations, further improving the reliability of the loading process and the smoothness of subsequent processes. In different implementations, the feeding mechanism 300 can be set with a corresponding number of feeding operations according to actual usage needs, and its transmission speed can also be adaptively adjusted according to actual usage needs. This invention does not impose specific limitations on this.

[0036] See Figure 7 and Figure 8 As shown, the function of the transfer mechanism 400 is to precisely connect the feeding mechanism 300 and the connecting transmission mechanism 500. By smoothly transferring the pump body 700 to be tested in the first fixture 320 to the second fixture 520 of the connecting transmission mechanism 500, it eliminates material transfer obstacles between different workstations, avoids the low efficiency and positioning error of traditional transfer, and ensures that the pump body has a consistent posture during the flow process.

[0037] Specifically, the transfer mechanism 400 includes a robotic arm 410, a connecting frame 420, and at least one clamping component 430. The robotic arm 410 is disposed between the feeding mechanism 300 and the connecting and transferring mechanism 500. The connecting frame 420 is disposed at the moving end of the robotic arm 410. At least one clamping component 430 is disposed on the connecting frame 420 to clamp the pump body 700 to be tested. Among them, the robotic arm 410 serves as the power and motion core, moving flexibly between the two via a preset trajectory. It can adjust its posture according to the position of the loading station and the transfer station of the turntable 510, ensuring accurate and efficient transfer path. The connecting frame 420 is fixed to the moving end of the robotic arm 410, providing a stable mounting base for the clamping component 430. Multiple clamping components 430 can be mounted as needed to achieve the transfer of one or more pumps at a time, improving the transfer cycle. The clamping component 430 directly acts on the pump 700 to be tested. Through a clamping structure adapted to the shape of the pump, it firmly fixes the pump without damaging it, preventing the pump from falling or shifting its posture during the transfer process.

[0038] Furthermore, in this embodiment, two clamping components 430 are provided. Each clamping component 430 includes a positioning plate 431, a gripper driver 432, and two opening and closing grippers 433. The gripper driver 432 is connected to the connecting frame 420. The two opening and closing grippers 433 are respectively connected to the two power output ends of the gripper driver 432 for relative opening and closing movement. The positioning plate 431 is disposed on one side of the gripper driver 432, and a positioning pin 4311 is provided at its bottom. The positioning pin 4311 can be inserted into the first docking pin hole 321 of the first fixture 320 / the second docking pin hole 521 of the second fixture 520. The gripper actuator 432 serves as the power source, driving the two opening and closing grippers 433 to open and close relative to each other. It is preferably a double-headed cylinder. The positioning plate 431 and the positioning pin 4311 at the bottom serve a positioning function. When gripping the pump body, the positioning pin 4311 can pass through the first docking pin hole 321 of the first fixture 320, ensuring that the opening and closing grippers 433 can accurately align with the pump body within the first fixture 320, preventing gripping deviation. When placing the pump body, the positioning pin 4311 can also cooperate with the second docking pin hole 521 of the second fixture 520, allowing the pump body to accurately fall into the preset position of the second fixture 520, preventing tilting after placement. This design of positioning before gripping / placing solves the positioning error problem that easily occurs in traditional gripping relying solely on gripper alignment. It provides a preliminary guarantee for the accurate docking of the subsequent testing mechanism 600 with the pump body's air and electrical interfaces, further improving the accuracy and stability of the transfer process.

[0039] See Figure 9As shown, the connecting transmission mechanism 500 is used for efficient scheduling and stable support of the pump body 700 to be tested. The turntable 510 drives the switching of multiple transfer stations by rotating, accurately transferring the pump body received from the transfer mechanism 400 to the working range of the testing mechanism 600. At the same time, the pump body that has completed testing can be moved to the next stage, realizing multi-station cyclic operation and greatly improving the testing cycle. The second fixture 520 fixes the pump body during the rotation of the turntable 510 and the testing process, ensuring that its position remains unchanged. It provides a rigid positioning reference for the sealing, circuit connection and other actions of the testing mechanism 600, and is the core carrier for realizing batch continuous testing.

[0040] Furthermore, each of the transfer stations in this embodiment is provided with a clearance opening, and the bottom of the second fixture 520 is provided with an air passage clearance hole communicating with the clearance opening. The bottom air passage 710 of the pump body 700 to be tested passes through the air passage clearance hole and the clearance opening to the bottom of the turntable 510. The clearance opening provides a vertical spatial channel in the transfer station, and the air passage clearance hole communicates with the clearance opening to form a path from the inside of the second fixture 520 to the bottom of the turntable 510. When the pump body 700 to be tested is placed on the second fixture 520, its bottom air passage 710 can extend through this path to below the turntable 510, which is exactly exposed within the working range of the bottom sealing component 620. This allows the first sealing post 623 of the bottom sealing component 620 to move smoothly upward in the vertical direction, accurately docking with and sealing the bottom air passage 710, without the need for additional adjustment of the pump body posture or disassembly of the fixture. This vertically integrated clearance design does not affect the fixing effect of the second fixture 520 on the pump body, and provides the necessary space for the inspection of the bottom air passage 710. It avoids the blockage of the sealing action by the turntable 510 or the fixture structure, and ensures the smooth implementation of the airtightness test of the bottom air passage 710.

[0041] Furthermore, the connection and transmission mechanism 500 includes a rotary driver 530 and a second detection component 540. The rotary driver 530 is connected to the center of the bottom surface of the turntable 510, and the second detection component 540 is disposed at the center of the top surface of the turntable 510. The second detection component 540 includes a second mounting bracket 541, a second material detector 542, and a second attitude detector 543. The second mounting bracket 541 is connected to the turntable 510, and the second material detector 542 and the second attitude detector 543 are both disposed on the second mounting bracket 541. The second material detector 542 is disposed facing the support surface of the second fixture 520, and the second attitude detector 543 is disposed above the second material detector 542. The interval between the detection height of the second attitude detector 543 and the detection height of the second material detector 542 is the same as the height of the pump body to be tested. The rotary driver 530 is connected to the center of the bottom surface of the turntable 510, providing stable and controllable rotational power to ensure stable cycle time for station switching. The second detection component 540 is located at the center of the top surface of the turntable 510 and is fixed by the second mounting bracket 541. Its second material detector 542 faces the support surface of the second fixture 520, which can detect whether the pump body has been successfully received in the fixture, preventing empty stations from entering the testing phase. The second attitude detector 543 is located above it, and the height difference between it and the material detector is equal to the height of the pump body under test by 700 mm, which can verify whether the pump body is placed stably in the second fixture 520. The two components work together to confirm the presence and attitude of the pump body before the turntable 510 rotates, preventing invalid tests and avoiding subsequent test component docking failures due to abnormal pump body attitude, further improving the reliability of the connection and transmission links and ensuring the smooth progress of the testing process.

[0042] Specifically, this embodiment has four transfer stations, which are arranged in pairs on opposite sides of the turntable 510. In different implementations, the specific number and arrangement of these stations can be adapted to actual usage needs, and the present invention does not impose specific limitations on this.

[0043] See Figures 10 to 13 As shown, the testing mechanism 600 achieves high-precision, integrated testing through the collaboration of multiple components. Among them, the bottom sealing component 620 drives the first sealing column 623 to move vertically with the help of the first sealing driver 622, accurately sealing the bottom air passage 710 of the pump body. With the help of external air tightness testing equipment, the sealing test of the bottom air passage 710 is completed when the motor is not powered on. Its vertical drive mode is adapted to the spatial position of the bottom interface, ensuring tight sealing, which is the basis for achieving accurate testing of the air passage.

[0044] Specifically, the bottom sealing assembly 620 includes a first bracket 621 and a first mating nozzle 625. The first bracket 621 is disposed at the bottom of the turntable 510, the first sealing actuator 622 is disposed on the first bracket 621, and the first mating nozzle 625 is disposed on the first sealing actuator 622 and communicates with the airtightness testing equipment. The first bracket 621 in the bottom sealing assembly 620 provides stable mounting support for the first sealing actuator 622, ensuring that it is fixed on the turntable 510. The preset position at the bottom is precisely aligned with the clearance opening of the transfer station and the air passage clearance hole of the second fixture 520; the first sealing driver 622 drives the first docking nozzle 625 to move vertically, so that the first docking nozzle 625 can pass through the clearance opening and the air passage clearance hole and fit tightly with the air passage 710 at the bottom of the pump body; at the same time, the first docking nozzle 625 is connected to the air tightness testing equipment, and the air tightness test can be performed directly after the sealing is completed, and the sealing status of the bottom air passage 710 is fed back in real time, realizing the integrated operation of sealing and testing.

[0045] Furthermore, the bottom sealing assembly 620 includes a docking platform 624, which is located at the top of the first bracket 621 and has a docking hole 6241. The first sealing column 623 can pass through the docking hole 6241 and communicate with the bottom air passage 710 of the pump body 700 to be tested. The docking platform 624 is fixed to the top of the first bracket 621, and its position is precisely aligned with the clearance opening on the turntable 510 and the air passage clearance hole of the second fixture 520. The docking hole 6241 provides a rigid guide channel for the first sealing column 623. When the first sealing actuator 622 drives the first sealing column 623 to rise, the first sealing column 623 first passes through the docking hole 6241, moves stably along a preset trajectory under the constraint of the hole wall, and then sequentially passes through the clearance opening of the turntable 510 and the air passage clearance hole of the second fixture 520, finally precisely docking with the bottom air passage 710 of the pump body. This design, through the guiding effect of the docking hole 6241, effectively counteracts the radial offset that the first sealing post 623 may experience during long-distance movement, ensuring its coaxiality with the bottom air passage 710 interface. At the same time, the docking platform 624 can provide some support for the first sealing post 623, reducing the shaking caused by contact force during sealing, significantly improving the sealing performance and repeatability accuracy of the bottom air passage 710, and providing additional assurance for the reliability of the airtightness test results.

[0046] Correspondingly, the lateral sealing assembly 630 drives the second sealing column 633 to move horizontally via the second sealing actuator 632, sealing the lateral air passage 720 of the pump body. Combined with an external airtightness testing device, the sealing performance of the lateral air passage 720 is tested while the motor is powered on. The lateral sealing assembly 630 includes a second bracket 631 and a second connecting nozzle 634. The second bracket 631 is disposed on one side of the turntable 510, the second sealing actuator 632 is disposed on the second bracket 631, and the second connecting nozzle 634 is disposed on the second sealing actuator 632 and connected to the airtightness testing device. The second bracket 631 fixes the second sealing actuator 632 to one side of the turntable 510, adapting to the horizontal layout of the pump body's side air passage 720; the second sealing actuator 632 drives the second docking nozzle 634 to move horizontally, accurately docking with the pump body's side air passage 720 interface; similarly, the second docking nozzle 634 is connected to the airtightness testing equipment, and when the motor is powered on and the side air passage 720 is in working condition, the airtightness test of the side air passage 720 can be completed quickly.

[0047] Furthermore, the testing mechanism 600 also includes a frame 610, on which a first lifting module 611 and a second lifting module 612 extending along its height direction are provided. The lateral sealing assembly is connected to the frame 610. The pressing block 652 moves along the first lifting module 611 toward / away from the pump body 700 to be tested, and the docking member 645 moves along the second lifting module 612 toward / away from the pump body 700 to be tested. Specifically, the frame 610, as the core support structure, not only fixes the position of the lateral sealing component, ensuring its alignment with the pump body's lateral air passage 720 on the turntable 510, but also provides a vertical installation reference for the first and second lifting modules 612. The first lifting module 611 extends along the height of the frame 610, providing rigid guidance for the movement of the lower pressure block 652, ensuring that the lower pressure block 652 maintains a vertical trajectory as it moves towards or away from the top surface of the pump body, preventing uneven clamping force or damage to the pump body due to misalignment. Similarly, the second lifting module 612 is also positioned along the height, providing precise guidance for the lifting of the docking piece 645, ensuring that the docking piece 645 can stably align with the pump body's motor electrical interface 730, achieving efficient and deviation-free docking. This modular design simplifies the overall layout of the test mechanism 600 and, through the guiding effect of the lifting module, significantly improves the repeatability of the actions of the pressing component 650 and the circuit docking component 640, ensuring the coordination and consistency of different test links and further optimizing the stability and efficiency of the test process.

[0048] Furthermore, in this embodiment, the first sealing post 623 is provided with a first sealing ring 6231 at its end, and the second sealing post 633 is provided with a second sealing ring 6331 at its end. Specifically, the first sealing ring 6231 at the end of the first sealing post 623 and the second sealing ring 6331 at the end of the second sealing post 633 are core components for ensuring the sealing performance of the pump body's air passage and ensuring the accuracy of the airtightness test results: when the first sealing post 623 is connected to the bottom air passage 710 of the pump body, the first sealing ring 6231 will undergo elastic deformation under the sealing pressure, tightly fitting the end face of the bottom air passage 710 interface, filling any small gaps that may exist between the interfaces, forming a reliable sealing surface, and preventing the test gas from leaking from the connection point; similarly, when the second sealing post 633 is connected to the lateral air passage 720, the second sealing ring 6331 will fit the lateral air passage 720 interface through elastic deformation, blocking the gas leakage channel. Both of them solve the problem of poor sealing caused by processing errors when metal or hard parts are connected by their own elastic properties, providing key sealing guarantee for the airtightness test of the bottom air passage 710 and the side air passage 720, which directly determines the authenticity and reliability of the test data. The present invention does not limit the specific materials of the first sealing ring 6231 and the second sealing ring 6331.

[0049] In this embodiment, the pressing component 650 is driven by the pressing driver 651 to press the pressing block 652 downward to press the top surface of the pump body. Its function is to counteract the thrust of the sealing component, prevent the pump body from shifting during the test, and ensure the precise fit between the sealing component and the air interface, and between the circuit connection component 640 and the electrical interface. This is an important guarantee for improving the detection accuracy.

[0050] Furthermore, the pressing assembly 650 includes a pressing slide 653, the pressing driver 651 is disposed on the top of the frame 610, the pressing slide 653 is connected to the power output end of the pressing driver 651 and is slidably connected to the first lifting module 611, the pressing block 652 is disposed on the pressing slide 653, and a contoured through groove 6521 is provided in the middle of the block. The lower slide 653 is connected to the power output end of the lower drive 651 and slides in cooperation with the first lifting module 611. The first lifting module 611 provides rigid guidance along the height direction of the frame 610, ensuring that the lower slide 653 maintains a vertical trajectory when moving the lower block 652, avoiding deviation that could lead to an imbalance in the clamping force. The contoured through groove 6521 in the middle of the lower block 652 is designed according to the top surface structure of the pump body 700 under test. When the lower block 652 presses against the pump body, the through groove can avoid the motor electrical interface 730 on the top surface of the pump body, applying pressure only to the rigid pressure-bearing area of ​​the pump body. This prevents damage to key components of the pump body and ensures that the clamping force is evenly transmitted, effectively offsetting the thrust of the sealing component and preventing the pump body from shifting. This provides a guarantee for the accuracy of subsequent air circuit sealing and circuit connection.

[0051] In this embodiment, the circuit docking assembly 640 drives the docking piece 645 to move through the docking lifting driver 642 set on the docking frame 641, automatically docking with the pump motor electrical interface 730 and connecting to external power supply. This not only provides the motor power-on conditions for the side air path 720 test, but also simultaneously detects the motor power-on status, realizing integrated testing of airtightness and circuit function. This avoids the efficiency loss caused by the traditional process dispersion and significantly improves the overall testing efficiency. Specifically, the circuit docking assembly 640 includes a docking slide, a conductive member 644, and a plug 643. The docking lifting driver 642 is disposed on the top of the frame 610. The docking slide is connected to the power output end of the docking lifting driver 642 and is slidably connected to the second lifting module 612. The plug 643 can be docked with an external power supply device. One end of the conductive member 644 is connected to the plug 643, and the other end is connected to the docking member 645. The docking member 645 can pass through the contoured through groove 6521 and be electrically connected to the motor electrical interface 730 of the pump body 700 to be tested.

[0052] Specifically, the circuit docking assembly 640, through the design of the docking carriage, the conductor 644, the plug 643, and the docking piece 645 adapted to the contoured through slot 6521, achieves precise and stable docking of the motor electrical interface 730, while forming efficient collaboration with the pressing assembly 650: the docking carriage is connected to the docking lifting driver 642 and slides along the second lifting module 612, which provides rigid guidance to ensure that the trajectory of the docking carriage driving the docking piece 645 to rise and fall is accurate and avoids deviation; the plug 643 is connected to the external power supply equipment, and the conductor 644 serves as the current transmission medium to stably transmit electrical energy to the docking piece 645; the docking piece 645 can pass through the contoured through slot 6521 in the middle of the pressing block 652. After the pressing block 652 presses the pump body, the docking piece 645 can avoid the obstruction of the pressing block 652 through the through slot and directly dock with the motor electrical interface 730 of the pump body, which does not require additional adjustment of the position of the pressing block 652 and ensures the continuity of the docking action. This design not only solves the problem of spatial interference between components, but also ensures the accuracy of the motor electrical interface 730 docking and the stability of power supply through the optimization of the guide structure and power transmission link, providing a reliable guarantee for the testing of the lateral air path 720.

[0053] Example 2: This embodiment provides a pump body transfer testing system, which performs pump body airtightness testing using the pump body transfer testing system described in Embodiment 1, and includes: Step S1: The pump body 700 to be tested is fed through the feeding mechanism 300; Step S2: The pump body 700 to be tested in the feeding mechanism 300 is transferred to the side of the connecting transmission mechanism 500 by the transfer mechanism 400. Step S3: The pump body 700 to be tested is moved to the working range of the testing mechanism 600 by the turntable 510 connected to the transmission mechanism 500. At the same time, the transfer mechanism 400 transfers another pump body 700 to be tested in the feeding mechanism 300 to the other side of the transmission mechanism 500. Step S4: First, fix the pump body 700 to be tested using the pressure component 650. Then, block the bottom air passage 710 of the pump body 700 to be tested using the bottom sealing component 620, and at the same time, block the side air passage 720 of the pump body using the side sealing component 630. Step S5: First, perform an airtightness test on the bottom air passage 710 of the pump body 700 to be tested. Then, connect the motor electrical interface 730 of the pump body 700 to be tested to an external power supply device through the circuit docking assembly 640. Perform an airtightness test on the side air passage 720 of the pump body 700 to be tested while it is powered on.

[0054] Furthermore, the pump body transfer testing system described in this embodiment performs synchronous testing on at least two pump bodies 700 to be tested through at least two testing mechanisms 600. The interval distance between the test points of adjacent testing mechanisms 600, the interval distance between two adjacent transfer stations on the turntable 510, the interval distance between two adjacent clamping components 430 in the transfer mechanism 400, and the interval distance between two adjacent loading stations in the loading mechanism 300 are all the same. Based on this, the loading mechanism 300 can output pump bodies at fixed intervals, and the clamping components 430 of the transfer mechanism 400 can simultaneously grab multiple pump bodies and accurately place them into the corresponding stations of the turntable 510. After the turntable 510 rotates, it can simultaneously send multiple pump bodies to the working range of different testing mechanisms 600, ultimately achieving synchronous testing of at least two pump bodies. This equidistant adaptation design completely eliminates the action delay between each link, maximizes the utilization of equipment resources, and significantly improves the testing efficiency of batch pump bodies, making it particularly suitable for large-scale industrial production scenarios.

[0055] In summary, compared with existing technologies, this application, on the one hand, forms an automated material flow chain through the cooperation of multiple structures, avoiding the positioning deviations and low efficiency problems that are prone to occur in traditional feeding and transfer, and improving the overall continuity and stability of operations; on the other hand, the testing mechanism 600, through the linkage of the bottom sealing component 620, the side sealing component 630 and the air tightness testing equipment, can simultaneously perform sealing tests on the bottom of the pump body and the side air passage 720, and with the auxiliary fixation of the pressing component 650, ensures the accuracy of sealing and the reliability of testing; at the same time, the circuit docking component 640 can automatically complete the docking with the pump body motor electrical interface 730 and realize power supply, integrating the air tightness testing of different air passages into the same system, solving the problems of complex operation and long time consumption caused by the separation of multiple devices and the dispersion of processes in traditional testing, and significantly improving testing efficiency and integration.

[0056] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A pump body transfer testing system, characterized in that: include: The feeding mechanism, transfer mechanism, connecting and transmitting mechanism, and testing mechanism are all included. The feeding mechanism includes a transmission module and multiple first fixtures. The multiple first fixtures move along the transmission module, and the pump body to be tested is located inside the first fixture. The connection and transmission mechanism includes a turntable and multiple second fixtures. The testing mechanism and the transfer mechanism are located on both sides of the connection and transmission mechanism. The turntable is provided with multiple transfer stations. Multiple second fixtures are respectively set in multiple transfer stations. After the transfer mechanism moves the pump body to be tested from the first fixture to the second fixture, it transfers the pump body to be tested to the working range of the testing mechanism through the turntable. The testing mechanism includes a bottom sealing assembly, a side sealing assembly, a downward pressure assembly, and a circuit connection assembly. Both the bottom sealing assembly and the side sealing assembly are externally connected to airtightness testing equipment. The bottom sealing assembly is located below the turntable and includes a first sealing driver and a first sealing column. The first sealing column moves vertically toward the bottom air passage of the pump under test via the first sealing driver. The side sealing assembly is located on one side of the turntable and includes a second sealing driver and a second sealing column. The second sealing column moves horizontally toward the side air passage of the pump under test via the second sealing driver. The downward pressure assembly is located above the turntable and includes a downward pressure driver and a downward pressure block. The downward pressure block moves toward the top surface of the pump under test via the downward pressure driver. The circuit connection assembly includes a connection lifting driver and a connection component. The connection component is externally powered and can move toward the motor electrical interface of the pump under test via the connection lifting driver.

2. The pump body transfer testing system according to claim 1, characterized in that: The bottom sealing assembly includes a first bracket and a first mating nozzle. The first bracket is disposed at the bottom of the turntable, the first sealing actuator is disposed on the first bracket, and the first mating nozzle is disposed on the first sealing actuator and is connected to the airtightness testing device. The lateral sealing assembly includes a second bracket and a second mating nozzle. The second bracket is disposed on one side of the turntable, the second sealing actuator is disposed on the second bracket, and the second mating nozzle is disposed on the second sealing actuator and is connected to the airtightness testing device.

3. The pump body transfer testing system according to claim 2, characterized in that: The bottom sealing assembly includes a docking platform located at the top of the first bracket, which has a docking hole. The first sealing column can pass through the docking hole and communicate with the bottom air passage of the pump body to be tested.

4. The pump body transfer testing system according to claim 1, characterized in that: The testing mechanism also includes a frame, on which a first lifting module and a second lifting module extend along its height direction. The lateral sealing component is connected to the frame. The pressing block moves along the first lifting module toward / away from the pump body to be tested, and the docking component moves along the second lifting module toward / away from the pump body to be tested.

5. The pump body transfer testing system according to claim 4, characterized in that: The pressing assembly includes a pressing slide, a pressing driver is disposed on the top of the frame, the pressing slide is connected to the power output end of the pressing driver and slidably connected to the first lifting module, and a pressing block is disposed on the pressing slide with a contoured through groove in its middle; the circuit docking assembly includes a docking slide, a conductive member and a plug, the docking lifting driver is disposed on the top of the frame, the docking slide is connected to the power output end of the docking lifting driver and slidably connected to the second lifting module, the plug can be connected to an external power supply device, one end of the conductive member is connected to the plug and the other end is connected to the docking member, and the docking member can pass through the contoured through groove and be electrically connected to the motor electrical interface of the pump body to be tested.

6. The pump body transfer testing system according to claim 1, characterized in that: The transmission module is provided with multiple loading stations, and the loading mechanism also includes multiple lifting components. The multiple lifting components are correspondingly arranged below the multiple loading stations. Each lifting component includes a lifting driver and a pushing component. The pushing component is connected to the power output end of the lifting driver to lift the first fixture that has moved to the corresponding loading station until the first fixture is detached from the transmission module.

7. The pump body transfer testing system according to claim 6, characterized in that: The feeding mechanism further includes multiple first detection components, which are correspondingly disposed on one side of multiple feeding stations. Each first detection component includes a first mounting frame, a first material detector, and a first attitude detector. The first mounting frame is connected to the outer wall of the transmission module. The first material detector and the first attitude detector are both disposed on the first mounting frame. The first material detector is disposed facing the support surface of the first fixture, and the first attitude detector is disposed above the first material detector. The interval between the detection height of the first attitude detector and the detection height of the first material detector is the same as the height of the pump body to be tested.

8. The pump body transfer testing system according to claim 1, characterized in that: The transfer mechanism includes a robotic arm, a connecting frame, and at least one clamping component. The robotic arm is disposed between the feeding mechanism and the connecting and transferring mechanism. The connecting frame is disposed at the moving end of the robotic arm. At least one of the clamping components is disposed on the connecting frame to clamp the pump body to be tested.

9. The pump body transfer testing system according to claim 8, characterized in that: The clamping assembly includes a positioning plate, a gripper driver, and two opening and closing grippers. The gripper driver is connected to the connecting frame, and the two opening and closing grippers are respectively connected to the two power output ends of the gripper driver to move relative to each other. The positioning plate is disposed on one side of the gripper driver, and a positioning pin is provided at its bottom. The positioning pin can be inserted into the first docking pin hole of the first fixture / the second docking pin hole of the second fixture.

10. The pump body transfer testing system according to claim 1, characterized in that: Each of the aforementioned transfer stations is provided with a clearance opening, and the bottom of the second fixture is provided with an air passage clearance hole that communicates with the clearance opening. The bottom air passage of the pump body to be tested passes through the air passage clearance hole and the clearance opening to the bottom of the turntable.

11. The pump body transfer testing system according to claim 1, characterized in that: The connection and transmission mechanism includes a rotary driver and a second detection component. The rotary driver is connected to the center of the bottom surface of the turntable, and the second detection component is disposed at the center of the top surface of the turntable. The second detection component includes a second mounting bracket, a second material detector, and a second attitude detector. The second mounting bracket is connected to the turntable, and the second material detector and the second attitude detector are both disposed on the second mounting bracket. The second material detector is disposed facing the support surface of the second fixture, and the second attitude detector is disposed above the second material detector. The interval between the detection height of the second attitude detector and the detection height of the second material detector is the same as the height of the pump body to be tested.

12. The pump body transfer testing system according to claim 1, characterized in that: The first sealing column is provided with a first sealing ring at its end, and the second sealing column is provided with a second sealing ring at its end; the pump body transfer test system also includes a machine base, a machine housing, and a control mechanism. The control mechanism is located inside the machine base, and the machine housing is fastened to the edge of the machine base. The feeding mechanism, the transfer mechanism, the connecting transmission mechanism, and the testing mechanism are all located on the machine base and are respectively connected to the control mechanism.

13. A pump body transfer test method, characterized in that: The pump body airtightness test is performed using the pump body transfer test system according to any one of claims 1 to 12, which includes: Step S1: The pump body to be tested is fed through the feeding mechanism; Step S2: Transfer the pump body to be tested in the feeding mechanism to the side connected to the transmission mechanism via the transfer mechanism; Step S3: Move the pump body to be tested to the working range of the testing mechanism via the turntable connected to the transmission mechanism. At the same time, the transfer mechanism transfers another pump body to be tested in the feeding mechanism to the other side of the connecting transmission mechanism. Step S4: First, fix the pump body to be tested using the pressure-down assembly, then seal the bottom air passage of the pump body to be tested using the bottom sealing assembly, and at the same time seal the side air passage of the pump body using the side sealing assembly. Step S5: First, perform an airtightness test on the bottom air passage of the pump body to be tested. Then, connect the motor electrical interface of the pump body to be tested to an external power supply device through the circuit connection assembly. Perform an airtightness test on the side air passage of the pump body to be tested while it is powered on.

14. The pump body transfer test method according to claim 13, characterized in that: The pump body transfer test system performs synchronous tests on at least two pump bodies to be tested through at least two test mechanisms. The interval distance between test points of adjacent test mechanisms, the interval distance between two adjacent transfer stations on the turntable, the interval distance between two adjacent clamping components in the transfer mechanism, and the interval distance between two adjacent loading stations in the loading mechanism are all the same.

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