A multifunctional detection line for a pump

Abstract

The present application relates to the technical field of pump detection, and more particularly to a multifunctional detection line for pumps, comprising a conveying mechanism, a performance testing unit, a flow testing unit, an air tightness testing unit and a sorting and discharging unit arranged in sequence along the conveying direction of the conveying mechanism, the conveying mechanism being used for conveying a carrier loaded with a pump; the performance testing unit being used for testing the performance parameters of the pump; the flow testing unit being used for testing the water flow of the pump; the air tightness testing unit being used for testing the air tightness of the pump; and the sorting and discharging unit being used for sorting and discharging the pump according to the test results. The pump is conveyed by the conveying mechanism, so that the pump is sequentially subjected to performance testing, flow testing and air tightness testing, and finally sorted by the sorting and discharging unit according to the test results, thereby realizing automatic testing of multiple performances and being conducive to improving efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pump detection, in particular to a multifunctional detection line for pumps. BACKGROUND

[0002] Pumps are devices that can drive fluids to move in a specific direction, and are widely used. Currently, pump detection is usually performed using one device for each detection item. For example, a Chinese invention patent with the patent number CN202011422114.7 discloses an automatic test table for comprehensive vertical pumps and a test method thereof, which realizes automatic detection of pumps and thus improves efficiency.

[0003] However, such a device still has the following problems: it can only complete one detection at a time and cannot continuously perform multiple different detections on pumps, so that there is still room for improvement in efficiency. SUMMARY

[0004] The present application provides a multifunctional detection line for pumps, which can continuously complete multiple detections on pumps and thus improves efficiency.

[0005] To solve the above technical problems, the present application adopts the following technical solutions:

[0006] The multifunctional detection line for pumps provided by the present application comprises a conveying mechanism, a performance test unit, a flow test unit, an air tightness test unit and a sorting and discharging unit arranged in sequence along the conveying direction of the conveying mechanism,

[0007] The conveying mechanism is used to convey a carrier loaded with a pump;

[0008] The performance test unit is used to test the performance parameters of the pump;

[0009] The flow test unit is used to test the water flow of the pump;

[0010] The air tightness test unit is used to test the air tightness of the pump;

[0011] The sorting and discharging unit is used to sort and discharge the pump according to the test results.

[0012] Further, the conveying mechanism comprises a feeding module, a first conveying module, a discharging module and a second conveying module, and the first conveying module and the second conveying module are both located between the feeding module and the discharging module;

[0013] The feeding module is used to convey the carrier loaded with the pump to the first conveying module, and to receive the empty carrier flowing back through the second conveying module;

[0014] The first conveying module is used to convey the carrier loaded with the pump to sequentially pass through the performance test unit, the flow test unit and the air tightness test unit.

[0015] The unloading module is used for receiving the carriers transported by the first transport module and moving the carriers unloaded from the sorting unloading unit to the second transport module;

[0016] The second transport module is used for moving the unloaded carriers to the loading module.

[0017] Further, the loading module comprises a loading table, a poking block, a pusher, a telescopic driver and a translation driver, the loading table is used for carrying the carriers, the translation driver is used for transporting the carriers transported by the second transport module to the loading table in a first direction, the poking block is used for the carriers and moves the carriers to the first transport module, the telescopic driver is used for driving the poking block to move back and forth in the first direction, and the pusher is used for driving the poking block to move back and forth in a second direction.

[0018] The first direction and the second direction are perpendicular to each other, and the second direction and the transport direction of the first transport module are parallel to each other.

[0019] Further, the first transport module comprises a base, a lifting limiter, a lifting positioner and two transport belt assemblies, the two transport belt assemblies are arranged in a spaced manner and are used for transporting the carriers, the base is provided with a limiting top plate for preventing the carriers from being lifted, the lifting limiter is located between the two transport belt assemblies, and the lifting limiter is used for lifting the rear stop carriers, and the lifting positioner is used for positioning and lifting the carriers stopped by the lifting limiter.

[0020] Further, the performance test unit comprises a plurality of performance test mechanisms arranged side by side, the performance test mechanism comprises a first pressing module, a sensing module, a first input module and a first output module, the first pressing module has a first conductive needle, and the working mode of the performance test mechanism comprises:

[0021] The first pressing module is driven to descend to press and fix the carrier with the pump to the transport mechanism, and the first conductive needle is electrically connected with the terminal of the pump;

[0022] The first input module and the first output module are respectively connected to the input port and the output port of the pump;

[0023] The first input module and the first output module are respectively switched to a specific state, and then the pump is powered through the first conductive needle, so that the pump works under specific conditions;

[0024] The sensing module is used for collecting parameters of the pump.

[0025] Further, the performance testing mechanism further comprises a water tank and a gas container, the sensing module comprises a first flow meter, a second flow meter and a gas pressure sensor, the first input module is connected with a first switch valve, the first input module is communicated with the water tank and the gas container through the switch valve, the second input module is connected with a second switch valve, the first output module is communicated with the second flow meter and the external atmosphere through the second switch valve; the first flow meter is arranged in the water tank, and the gas pressure sensor is arranged in the gas container; the second switch valve is provided with a closed port;

[0026] The performance parameter testing of the pump comprises load pressure testing, air pumping pressure testing and low-pressure water pumping testing of the pump.

[0027] Further, the performance testing of the pump comprises load pressure testing, air pumping pressure testing and low-pressure water pumping testing of the pump.

[0028] The first switch valve is controlled to communicate the first input module with the water tank;

[0029] The second switch valve is controlled to communicate the first output module with the closed port;

[0030] The first conductive needle is used to provide working voltage for the pump, so that the pump pumps water in the water tank until the pump cannot work due to water pressure, and the total amount of water pumped by the pump is obtained through the first flow meter;

[0031] The air pumping pressure testing of the pump comprises:

[0032] The first switch valve is controlled to communicate the first input module with the gas container;

[0033] The second switch valve is controlled to communicate the first output module with the external atmosphere;

[0034] The first conductive needle is used to provide working voltage for the pump, so that the pump works to pump air in the gas container and output to the external atmosphere; when the pump cannot work due to the pressure difference between the inside and outside of the gas container, the gas pressure value in the gas container is obtained through the gas pressure sensor;

[0035] The low-pressure water pumping testing of the pump comprises:

[0036] The first switch valve is controlled to communicate the first input module with the water tank;

[0037] The second switch valve is controlled to communicate the first output module with the second flow meter;

[0038] The first conductive needle is used to provide voltage lower than 220V for the pump, and then the value change of the first flow meter and / or the second flow meter is obtained to determine whether the pump successfully pumps water.

[0039] Further, the flow test unit comprises a plurality of flow test mechanisms arranged side by side, the flow test mechanism comprising a second pressing module, a second input module and a second output module, the second pressing module being provided with a second conductive needle, the second input module being communicated with a liquid tank, and the second output module being communicated with a third flow meter for obtaining the water pumping amount of the pump within a preset time.

[0040] Further, the air tightness test unit comprises a plurality of air tightness test mechanisms arranged side by side, the air tightness test mechanism comprising a third pressing module, a third input module and a third output module, the third pressing module being provided with a third conductive needle, the third input module being communicated with an air source, the third input module being provided with a fourth flow meter between the third input module and the air source, and the third output module being communicated with a fifth flow meter; the values measured by the fourth flow meter and the fifth flow meter are used to judge the air tightness of the pump.

[0041] Further, the sorting and discharging unit comprises a material moving module, a conveying module, a pump container, a pump pusher, a plurality of NG transmission modules and a plurality of qualified product transmission modules, the plurality of NG transmission modules and the plurality of qualified product transmission modules being arranged in sequence along the transmission direction of the conveying module, the material moving module being used to move the pump in the carrier to the pump container, and the conveying module being used to move the pump container, the pump pusher being installed on the pump container and being used to push the pump in the pump container away from the pump container.

[0042] The present application has the following advantages: the pump is transmitted by the transmission mechanism, so that the pump sequentially performs performance test, flow test and air tightness test, and finally the pump is sorted according to the test results by the sorting and discharging unit, thereby realizing automatic test of multiple performances and being beneficial to improving efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 The present application has the following advantages: the pump is transmitted by the transmission mechanism, so that the pump sequentially performs performance test, flow test and air tightness test, and finally the pump is sorted according to the test results by the sorting and discharging unit, thereby realizing automatic test of multiple performances and being beneficial to improving efficiency.

[0044] Figure 2 The present application has the following advantages: the pump is transmitted by the transmission mechanism, so that the pump sequentially performs performance test, flow test and air tightness test, and finally the pump is sorted according to the test results by the sorting and discharging unit, thereby realizing automatic test of multiple performances and being beneficial to improving efficiency.

[0045] Figure 3 The present application has the following advantages: the pump is transmitted by the transmission mechanism, so that the pump sequentially performs performance test, flow test and air tightness test, and finally the pump is sorted according to the test results by the sorting and discharging unit, thereby realizing automatic test of multiple performances and being beneficial to improving efficiency.

[0046] Figure 4 The present application has the following advantages: the pump is transmitted by the transmission mechanism, so that the pump sequentially performs performance test, flow test and air tightness test, and finally the pump is sorted according to the test results by the sorting and discharging unit, thereby realizing automatic test of multiple performances and being beneficial to improving efficiency.

[0047] Figure 5 The present application has the following advantages: the pump is transmitted by the transmission mechanism, so that the pump sequentially performs performance test, flow test and air tightness test, and finally the pump is sorted according to the test results by the sorting and discharging unit, thereby realizing automatic test of multiple performances and being beneficial to improving efficiency.

[0048] Figure 6 The present application has the following advantages: the pump is transmitted by the transmission mechanism, so that the pump sequentially performs performance test, flow test and air tightness test, and finally the pump is sorted according to the test results by the sorting and discharging unit, thereby realizing automatic test of multiple performances and being beneficial to improving efficiency.

[0049] Figure 7 The present application has the following advantages: the pump is transmitted by the transmission mechanism, so that the pump sequentially performs performance test, flow test and air tightness test, and finally the pump is sorted according to the test results by the sorting and discharging unit, thereby realizing automatic test of multiple performances and being beneficial to improving efficiency.

[0050] Figure 8 Schematic diagram of the flow test mechanism of the present application.

[0051] Figure 9 Schematic diagram of the air tightness test mechanism of the present application.

[0052] Figure 10 Schematic diagram of the sorting and discharging unit of the present application.

[0053] Figure 11 Schematic diagram of the carrier of the present application.

[0054] Reference signs: 1-transmission mechanism, 2-performance test unit, 3-flow test unit, 4-air tightness test unit, 5-sorting and discharging unit, 6-pump, 7-carrier, 11-feeding module, 12-first transmission module, 13-discharging module, 14-second transmission module, 20-performance test mechanism, 21-first pressing module, 22-sensing module, 23-first input module, 24-first output module, 25-first conductive needle, 26-water tank, 27-gas container, 28-first switching valve, 29-second switching valve, 30-flow test mechanism, 31-second pressing module, 32-second input module, 33-second output module, 34-second conductive needle, 35-third flow meter, 40-air tightness test mechanism, 41-third pressing module, 42-third input module, 43-third output module, 44-third conductive needle, 45-fourth flow meter, 46-fifth flow meter, 51-removing module, 52-conveying module, 53-pump container, 54-pump pusher, 55-NG transmission module, 56-qualified product transmission module, 71-positioning groove, 111-feeding table, 112-pushing block, 113-pusher, 114-telescopic driver, 115-translation driver, 116-positioning protrusion, 117-vacuum hole, 118-transition wheel, 121-base, 122-jacking limiter, 123-jacking positioner, 124-transmission belt assembly, 221-first flow meter, 222-second flow meter, 223-air pressure sensor, 511-X-axis driver, 512-pneumatic finger, 1231-translation cylinder, 1232-positioning seat, 1233-driving block, 1234-jacking block, 1235-first inclined surface, 1236-second inclined surface. DETAILED DESCRIPTION

[0055] For the convenience of those skilled in the art, the present application is further described below in conjunction with the embodiments and the accompanying drawings, and the content mentioned in the embodiments is not a limitation of the present application. The present application is described in detail below in conjunction with the accompanying drawings.

[0056] As Figures 1 to 11As shown, the multifunctional detection line of the pump provided by the application comprises a conveying mechanism 1, a performance test unit 2, a flow test unit 3, an air tightness test unit 4 and a sorting and discharging unit 5 are sequentially arranged along the conveying direction of the conveying mechanism 1,

[0057] The conveying mechanism 1 is used for conveying the carrier 7 loaded with the pump 6;

[0058] The performance test unit 2 is used for testing the performance parameters of the pump 6;

[0059] The flow test unit 3 is used for testing the water flow of the pump 6;

[0060] The air tightness test unit 4 is used for testing the air tightness of the pump 6;

[0061] The sorting and discharging unit 5 is used for sorting and discharging the pump 6 according to the test results.

[0062] In work, the pump 6 is placed in the carrier 7, the conveying mechanism 1 conveys the carrier 7 to sequentially pass through the performance test unit 2, the flow test unit 3 and the air tightness test unit 4, so as to sequentially test the performance parameters, the water flow and the air tightness of the pump 6, and the test results are uploaded to the upper computer (not shown in the figure) for storage. After all the tests are completed, the upper computer can sort and transfer the pump 6 by using the sorting and discharging unit 5 according to the test results, so that the qualified products and unqualified products are discharged separately, and the unqualified products with different unqualified reasons are also discharged separately, which is convenient for subsequent repair and processing of the pump 6.

[0063] By the application, various tests on the pump 6 can be completed, so that the pump 6 does not need to be moved for multiple times, and the efficiency is improved.

[0064] In the embodiment, the conveying mechanism 1 comprises a feeding module 11, a first conveying module 12, a discharging module 13 and a second conveying module 14, and the first conveying module 12 and the second conveying module 14 are both located between the feeding module 11 and the discharging module 13;

[0065] The feeding module 11 is used for conveying the carrier 7 loaded with the pump 6 to the first conveying module 12, and receiving the empty carrier 7 backflowing through the second conveying module 14;

[0066] The first conveying module 12 is used for conveying the carrier 7 loaded with the pump 6 to sequentially pass through the performance test unit 2, the flow test unit 3 and the air tightness test unit 4;

[0067] The discharging module 13 is used for receiving the carrier 7 conveyed by the first conveying module 12, and conveying the carrier 7 with the pump 6 removed by the sorting and discharging unit 5 to the second conveying module 14;

[0068] The second conveying module 14 is used for conveying the empty carrier 7 to the feeding module 11.

[0069] That is, the feeding module 11, the first conveying module 12, the discharging module 13 and the second conveying module 14 of the embodiment constitute a closed conveying loop, only the feeding module 11 exchanges the carrier 7 with the outside world, for example, the carrier 7 loaded with the pump 6 is handled by the robot of the outside world after the feeding module 11, and then the carrier 7 is moved to the first conveying module 12 through the feeding module 11, and then the carrier 7 is conveyed by the first conveying module 12 to pass through the performance test unit 2, the flow test unit 3, the air tightness test unit 4 and the sorting and discharging unit 5 in turn, and finally moves to the discharging module 13, and the pump 6 in the carrier 7 is taken out by the sorting and discharging unit 5 and sorted; the carrier 7 unloaded by the taken-out pump 6 is returned to the feeding module 11 by the second conveying module 14, and then handled by the robot of the outside world.

[0070] Through the setting of the conveying loop, the carrier 7 only interacts with the outside world at the feeding module 11, so that the overall structure of the conveying mechanism 1 is more simple, and the space requirement is small.

[0071] It should be noted that the above-mentioned interaction means that the robot of the outside world takes out the unloaded carrier 7 and puts it into the carrier 7 loaded with the pump 6, or the robot of the outside world puts the pump 6 into the unloaded carrier 7.

[0072] Specifically, the feeding module 11 includes a feeding table 111, a poking block 112, a pusher 113, a telescopic drive 114 and a translation drive 115, the feeding table 111 is used to carry the carrier 7, the translation drive 115 is used to convey the carrier 7 conveyed by the second conveying module 14 to the feeding table 111 to the first direction, the poking block 112 is used to abut against the carrier 7 and move the carrier 7 to the first conveying module 12, the telescopic drive 114 is used to drive the poking block 112 to move back and forth along the first direction, and the pusher 113 is used to drive the poking block 112 to move back and forth along the second direction.

[0073] The first direction and the second direction are perpendicular to each other, and the second direction and the conveying direction of the first conveying module 12 are parallel to each other.

[0074] Specifically, the pusher 113, the telescopic drive 114 and the translation drive 115 are preferably air cylinders or electric cylinders. After the empty carrier 7 is transported to the loading module 11 by the second transmission module 14, in order to avoid the next empty carrier 7, the empty carrier 7 is first moved along the first direction by the translation drive 115, so that the empty carrier 7 is dislocated from the output end of the second transmission module 14; and the next empty carrier 7 will also be pushed by the translation drive 115 after reaching the loading module 11, at this time the next empty carrier 7 will be pushed to abut the previous empty carrier 7 and move together, so that each empty carrier 7 maintains parallel attitude. Taking the above-mentioned interaction as an example of putting the pump 6 into the empty carrier 7, the robot puts the pump 6 into the empty carrier 7, and the pump 6 will be moved to the input end of the first transmission module 12 along with the continuous action of the translation drive 115, and then the telescopic drive 114 controls the push block 112 to extend along the first direction to the end of the carrier 7 away from the first transmission module 12, and then the pusher 113 controls the push block 112 to act along the second direction, and the carrier 7 is pushed into the first transmission module 12 by the push block 112, and the carrier 7 is moved by the first transmission module 12, achieving the effect of loading.

[0075] Through the setting of the loading module 11, the effect of automatically moving the carrier 7 in the carrier table is realized, and the carrier 7 can be moved in the loading table 111 by simple pneumatic device cooperation, which is compact and easy to control.

[0076] Specifically, one side of the loading table 111 is provided with a positioning protrusion 116, and at least one side of the bottom of the carrier 7 is provided with a positioning groove 71, and the positioning protrusion 116 and the positioning groove 71 are matched to realize the positioning of the carrier 7, so as to ensure that the attitudes of all carriers 7 are basically consistent, avoiding the mispositioning of the carrier 7.

[0077] In addition, the loading table 111 can be provided with a vacuum hole 117, and the positioning of the carrier 7 is completed by using the vacuum hole 117 to adsorb the carrier 7, that is, when the pump 6 is put into the carrier 7, the carrier 7 is fixed by using the vacuum hole 117 before being put in, so as to ensure that the carrier 7 will not deviate, ensuring the safety and stability of putting the pump 6. The cooperation of positioning and vacuum adsorption makes the position of the carrier 7 accurate, and also realizes the effect of accurately putting the pump 6 without vision.

[0078] In the embodiment, the loading table 111 is also provided with a transition wheel 118 connected with a motor, which is driven to rotate, so as to transmit the carrier 7 transmitted by the second transmission module 14 to abut against the positioning protrusion 116, ensuring the positioning of the carrier 7.

[0079] Specifically, the first transmission module 12 comprises a base 121, a lifting limiter 122 and a lifting positioner 123, and two transmission belt assemblies 124, the lifting limiter 122 and the lifting positioner 123 are arranged on the base 121, and the two transmission belt assemblies 124 are arranged in parallel and are used for transmitting the carriers 7, the base 121 is provided with a limiting top plate for preventing the carriers 7 from being buckled, the lifting limiter 122 is located between the two transmission belt assemblies 124, and the lifting limiter 122 is used for lifting the rear stop carriers 7, and the lifting positioner 123 is used for positioning the carriers 7 stopped by the lifting limiter 122.

[0080] In actual use, the lifting limiters 122 are preferably air cylinders or electric cylinders. The lifting positioners 123 and the lifting limiters 122 of the first transmission module 12 are multiple, and are used for corresponding performance detection units, flow test units 3 and air tightness test units 4. When the carriers 7 are about to be positioned, the lifting limiters 122 are actuated to protrude between the two transmission belt assemblies 124, so as to limit the movement of the carriers 7; then the lifting positioners 123 are actuated to realize the positioning and lifting of the carriers 7, so as to ensure the accuracy of the position of the carriers 7 during testing.

[0081] In the embodiment, the lifting positioner 123 comprises two positioning assemblies, each of the positioning assemblies comprises a translation air cylinder 1231, a positioning seat 1232, a lifting block 1234 and a driving block 1233, the driving block 1233 is connected to a piston rod of the translation air cylinder 1231, the driving block 1233 and the lifting block 1234 are movably arranged in the positioning seat 1232, the bottom of the lifting block 1234 is provided with a first inclined surface 1235, the top of the driving block 1233 is provided with a second inclined surface 1236, the first inclined surface 1235 and the second inclined surface 1236 are in abutment, and the driving block 1233 is driven by the translation air cylinder 1231 to move back and forth in a second direction to control the lifting block 1234 to rise and fall. That is, through the cooperation of the two positioning lifting blocks 1234, the effect of smoothly lifting the carriers 7 is realized, the carriers 7 are separated from the first transmission module 12 and can be detected, so as to avoid the interference of the action of the first transmission module 12 on the detection.

[0082] In the embodiment, the performance test unit 2 comprises multiple performance test mechanisms 20 arranged side by side, each of the performance test mechanisms 20 comprises a first pressing module 21, a sensing module 22, a first input module 23 and a first output module 24, the first pressing module 21 is provided with a first conductive pin 25, and the working mode of the performance test mechanism 20 comprises:

[0083] The first pressing module 21 is driven to descend to press and fix the carrier 7 provided with the pump 6 to the transmission mechanism 1, and the first conductive pin 25 is electrically connected to the terminal of the pump 6;

[0084] The first input module 23 and the first output module 24 are connected to the input port and the output port of the pump 6, respectively.

[0085] The first input module 23 and the first output module 24 are controlled to switch to a specific state, and then the pump 6 is powered through the first conductive needle 25, so that the pump 6 works under specific conditions;

[0086] The parameters of the pump 6 are collected by the sensing module 22.

[0087] During performance testing, the first pressure holding module 21 is lowered, and in addition to positioning the carrier 7 by cooperation of the first pressure holding module 21 and the jacking positioner 123, the first conductive needle 25 is also used to electrically connect the pump 6 in the carrier 7 to supply power to the pump 6, and then the sensing module 22, the first input module 23 and the first output module 24 are used to realize the working effect of the pump 6 under different conditions, so as to complete the performance test.

[0088] Specifically, the performance parameters of the pump 6 include the load pressure, the suction pressure and the low-pressure water suction performance of the pump 6. Therefore, the performance testing mechanism 20 further includes a water tank 26 and a gas container 27, the sensing module 22 includes a first flowmeter 221, a second flowmeter 222 and a gas pressure sensor 223, the first input module 23 is connected with a first switch valve 28, the first input module 23 is connected with the water tank 26 and the gas container 27 through the switch valve, the second input module 32 is connected with a second switch valve 29, and the first output module 24 is connected with the second flowmeter 222 and the outside atmosphere through the second switch valve 29; the first flowmeter 221 is arranged in the water tank 26, and the gas pressure sensor 223 is installed in the gas container 27; the second switch valve 29 is provided with a closed port.

[0089] The first switch valve 28 and the second switch valve 29 are preferably solenoid valves, and the action of the first switch valve 28 and the second switch valve 29 is used to control the devices connected by the first input module 23 and the first output module 24 respectively, so as to realize the suction effect of the pump 6 on the required fluid, and to realize multiple tests on the pump 6 by the performance testing mechanism 20, thereby improving the efficiency.

[0090] Specifically, the load pressure test mode of the pump 6 includes:

[0091] The first switch valve 28 is controlled to act, so that the first input module 23 is connected with the water tank 26;

[0092] The second switch valve 29 is controlled to act, so that the first output module 24 is connected with the closed port;

[0093] The first conductive needle 25 provides a working voltage for the pump 6, so that the pump 6 sucks the water in the water tank 26 until the pump 6 cannot work due to water pressure, and the total amount of water sucked by the pump 6 is obtained through the first flowmeter 221.

[0094] The load pressure is substantially the maximum output pressure at which the pump 6 can continue to pump water. The first output module 24 is closed, which means that the second switching valve 29 is switched to the closed end or switched to communicate with a small container. When the pump 6 is full, the water will also exert pressure on the pump 6, and the maximum pressure at which the pump 6 can continue to rotate is the test method of the load pressure of the pump 6.

[0095] The performance test of the pump 6 includes the load pressure test of the pump 6, the air pumping pressure test method of the pump 6, and the low-pressure water pumping test of the pump 6. The load pressure test of the pump 6 includes the air pumping pressure test method of the pump 6.

[0096] The first switching valve 28 is controlled to act so that the first input module 23 communicates with the gas container 27.

[0097] The second switching valve 29 is controlled to act so that the first output module 24 communicates with the outside atmosphere.

[0098] The first conductive needle 25 is used to provide a working voltage to the pump 6, so that the pump 6 acts to pump the air in the gas container 27 and output to the outside atmosphere. When the pump 6 cannot act due to the pressure difference between the inside and outside of the gas container 27, the gas pressure value in the gas container 27 is obtained by the gas pressure sensor 223.

[0099] The air pumping pressure test is mainly to test whether the pump 6 can continue to pump air when the air pressure value at the input end decreases. This method uses the pump 6 as a "vacuum pump 6" to pump the gas in the gas container 27 to reduce the air pressure value until the pump 6 cannot continue to pump air, which is the required parameter. The gas container 27 can communicate with a switch valve, which is closed during testing to prevent the gas container 27 from communicating with the outside / atmosphere, and opened after testing to restore the air pressure in the gas container 27 to normal, avoiding damage to the pump 6.

[0100] The low-pressure water pumping test of the pump 6 includes:

[0101] The first switching valve 28 is controlled to act so that the first input module 23 communicates with the water tank 26.

[0102] The second switching valve 29 is controlled to act so that the first output module 24 communicates with the second flow meter 222.

[0103] The first conductive needle 25 is used to provide a voltage lower than 220V to the pump 6, and then the value change of the first flow meter 221 and / or the second flow meter 222 is obtained to determine whether the pump 6 successfully pumps water.

[0104] The low-voltage water pumping test is to test whether the pump 6 can smoothly pump water under a voltage lower than 220V. The first conductive needle 25 is used to apply a test voltage, for example, 180V, to the pump 6, and then it is observed whether the pump 6 can smoothly pump the water in the water tank 26 and whether the flow rate meets the requirements, thereby completing the test.

[0105] It should be noted that the second flow meter 222 of the embodiment can be in communication with the water tank 26 through a conduit, so that the water used in the embodiment is continuously recycled, thereby ensuring safety.

[0106] In order to ensure efficiency, the number of performance test mechanisms 20 is not less than two, and is preferably 3-5 according to cost and efficiency. That is, the conveying mechanism 1 needs to convey the number of carriers 7 corresponding to the performance test mechanisms 20 at a time, so as to ensure test efficiency and synchronization of the action rhythm between different performance test mechanisms 20.

[0107] In the embodiment, the flow test unit 3 includes a plurality of flow test mechanisms 30 arranged side by side. The flow test mechanism 30 includes a second pressing module 31, a second input module 32, and a second output module 33. The second pressing module 31 has a second conductive needle 34. The second input module 32 is in communication with a liquid tank. The second output module 33 is in communication with a third flow meter 35. The third flow meter 35 is used to obtain the water pumping amount of the pump 6 within a preset time.

[0108] Similarly, the number of flow test mechanisms 30 is the same as that of performance test mechanisms 20. The flow test mechanism 30 is used to test whether the water pumped by the pump 6 within a preset time under normal voltage meets the requirements. Therefore, the third flow meter 35 is used to monitor the water flow within the preset time, thereby completing the test.

[0109] In the embodiment, the air tightness test unit 4 includes a plurality of air tightness test mechanisms 40 arranged side by side. The air tightness test mechanism 40 includes a third pressing module 41, a third input module 42, and a third output module 43. The third pressing module 41 has a third conductive needle 44. The third input module 42 is in communication with a gas source. The third input module 42 is provided with a fourth flow meter 45 between the third input module 42 and the gas source. The third output module 43 is in communication with a fifth flow meter 46. The values measured by the fourth flow meter 45 and the fifth flow meter 46 are used to judge the air tightness of the pump 6.

[0110] The air tightness test is used to test whether the pump 6 will leak when pumping air under normal voltage. Therefore, the fourth flow meter 45 and the fifth flow meter 46 are used to monitor the changes in the gas flow entering and leaving the pump 6, respectively, so as to judge whether the air tightness meets the requirements.

[0111] The first input module 23, the second input module 32 and the third input module 42 of the embodiment are basically the same in structure, and the first output module 24, the second output module 33 and the third output module 43 are basically the same in structure. Taking the first input module 23 as an example, it has a plurality of joints and an input driver, which is preferably a pneumatic cylinder or an electric cylinder, and controls the first joint to move towards the pump 6 to make the joint smoothly dock with the input end of the pump 6; and the joint is connected with different structures according to different test contents, which is a scheme that can be set by those skilled in the art according to the above description, and will not be described here.

[0112] Similarly, the first output module 24 is also similar in principle structure to the first input module 23, and will not be described here.

[0113] In the embodiment, the sorting and discharging unit 5 includes a moving module 51, a conveying module 52, a pump container 53, a pump pusher 54, a plurality of NG transmission modules 55 and a plurality of qualified product transmission modules 56, the plurality of NG transmission modules 55 and the plurality of qualified product transmission modules 56 are sequentially arranged along the conveying direction of the conveying module 52, the moving module 51 is used to move the pump 6 in the carrier 7 to the pump container 53, the conveying module 52 is used to move the pump container 53, and the pump pusher 54 is installed on the pump container 53 and is used to push the pump 6 in the pump container 53 away from the pump container 53.

[0114] The moving module 51 includes an X-axis driver 511 and a plurality of pneumatic fingers 512, the X-axis driver 511 is used to drive the plurality of pneumatic fingers 512 to move, and the plurality of pneumatic fingers 512 are respectively used to clamp the pump 6 on the carrier 7 and then move the pump 6 to the pump container 53 for placement; then the pump container 53 sequentially passes through the plurality of NG transmission modules 55 and the plurality of qualified product transmission modules 56 under the driving of the conveying module 52 (preferably a conventional linear driver), if there is an unqualified pump 6 in the detection, according to the unqualified parameter of the pump 6, the pump 6 is pushed into the corresponding NG transmission module 55 by the pump pusher 54 when passing through the NG transmission module 55, thereby realizing high-efficiency sorting.

[0115] Since the pump pusher 54 is preferably a pneumatic cylinder or an electric cylinder, and the sorting mainly pushes the pump 6 into the corresponding transmission module, the efficiency is very high, and the sorting efficiency of one sorting and discharging unit 5 can match three performance test mechanisms 20.

[0116] The NG transmission module 55 is preferably composed of a transmission belt and a box, and the pump 6 is pushed into the transmission belt, and the pump 6 is dropped into the box for recycling after being transmitted by the transmission belt.

[0117] The qualified product conveying module 56 is provided in plurality to allow multiple qualified pumps 6 to be discharged simultaneously to improve efficiency. The qualified product conveying module 56 includes a slide and a conveying belt. The slide is used to guide the pump 6 to be stably dropped on the conveying belt, and then the conveying belt is used to convey the pump 6 to the next station to ensure the safety of the pump 6.

[0118] Of course, the multiple qualified product conveying modules 56 can also convey pumps 6 of different flow rates respectively. That is, in the flow rate testing unit 3, the actual flow rate of the pump 6 can be measured, and then the pump 6 is sorted according to the flow rate to different qualified product conveying modules 56 for discharge. Thus, the present embodiment can complete the detection of multiple pumps 6 of similar shapes but different flow rates at one time, and the versatility is better.

[0119] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application is disclosed as above with a preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the present application to obtain equivalent embodiments. Any simple modification, equivalent change and modification made to the above embodiment according to the present application are within the scope of the present application.

Claims

1. A multi-functional testing line for a pump, characterized in that: The system includes a conveying mechanism, and along the conveying direction of the mechanism, a performance testing unit, a flow testing unit, an airtightness testing unit, and a sorting and unloading unit are arranged in sequence. The transmission mechanism is used to transfer the carrier for loading the pump; The performance testing unit is used to test the performance parameters of the pump; The flow test unit is used to test the water flow rate of the pump; The airtightness test unit is used to test the airtightness of the pump; The sorting and unloading unit is used to sort and unload materials from the pumps based on the test results; The transmission mechanism includes a feeding module, a first transmission module, a discharging module, and a second transmission module, with the first transmission module and the second transmission module both located between the feeding module and the discharging module; The loading module is used to transfer the pump-equipped vehicle to the first transfer module, and to receive the empty vehicle returning from the second transfer module; The first transmission module is used to transmit the vehicle equipped with the pump through the performance testing unit, the flow testing unit, and the airtightness testing unit in sequence. The unloading module is used to receive the carriers transmitted by the first transmission module and to transfer the unloaded carriers from the sorting and unloading unit to the second transmission module. The second transfer module is used to transfer the empty vehicle to the loading module; The performance testing unit includes multiple performance testing mechanisms arranged side by side. Each performance testing mechanism includes a first holding module, a sensing module, a first input module, and a first output module. The first holding module has a first conductive pin. The operating mode of the performance testing mechanism includes: The first holding module is driven to descend to hold and fix the carrier containing the pump to the transmission mechanism, and to make the first conductive pin electrically connected to the pump terminal. The first input module and the first output module are respectively connected to the pump's input port and output port; The first input module and the first output module are controlled to switch to specific states respectively, and then the pump is powered through the first conductor so that the pump can work under specific conditions. Pump parameters are collected using a sensing module.

2. The multi-functional testing line for the pump according to claim 1, characterized in that: The loading module includes a loading platform, a toggle block, a pusher, a telescopic driver, and a translation driver. The loading platform is used to carry the carrier. The translation driver is used to transfer the carrier from the second transmission module to the loading platform in the first direction. The toggle block is used to carry the carrier and move the carrier to the first transmission module. The telescopic driver is used to drive the toggle block to move back and forth in the first direction. The pusher is used to drive the toggle block to move back and forth in the second direction. The first direction and the second direction are perpendicular to each other, and the second direction is parallel to the transmission direction of the first transmission module.

3. The multi-functional testing line for pumps according to claim 1, characterized in that: The first transmission module includes a base, a lifting limiter and a lifting positioner both disposed on the base, and two transmission belt assemblies. The two transmission belt assemblies are spaced apart and used to transmit the vehicle. The base is provided with a limiting top plate to prevent the vehicle from tilting. The lifting limiter is located between the two transmission belt assemblies. The lifting limiter is used to stop the vehicle after it is raised, and the lifting positioner is used to position and lift the vehicle that is stopped by the lifting limiter.

4. The multi-functional testing line for the pump according to claim 1, characterized in that: The performance testing mechanism also includes a water tank and a gas container. The sensing module includes a first flow meter, a second flow meter, and a pressure sensor. The first input module is connected to a first switching valve, which connects the first input module to the water tank and the gas container respectively. The second input module is connected to a second switching valve, and the first output module connects the first output module to the second flow meter and the outside atmosphere respectively via the second switching valve. The first flow meter is installed in the water tank, and the pressure sensor is installed inside the gas container. The second switching valve has a closed port. The pump's performance parameters include its load pressure, pumping pressure, and low-pressure pumping performance.

5. The multi-functional testing line for the pump according to claim 1, characterized in that: The pump performance test includes pump load pressure test, pump air pressure test, and low-pressure water pumping test. The pump load pressure test includes: Control the first switching valve to connect the first input module to the water tank; Control the second switching valve to connect the first output module to the closed port; The first conductor provides the working voltage to the pump, causing the pump to draw water from the tank until the pump can no longer operate due to water pressure, and the total amount of water drawn by the pump is obtained through the first flow meter. Pump pumping pressure testing methods include: Control the first switching valve to connect the first input module to the gas container; Control the second switching valve to enable the first output module to connect with the outside atmosphere; The first conductor provides the operating voltage to the pump, causing the pump to operate to draw air from the gas container and output it to the outside atmosphere; when the pump cannot operate due to the pressure difference between the inside and outside of the gas container, the gas pressure value inside the gas container is obtained through the gas pressure sensor. The low-pressure pumping test of the pump includes: Control the first switching valve to connect the first input module to the water tank; Control the second switching valve to connect the first output module to the second flow meter; A voltage below 220V is supplied to the pump using a first conductive pin, and then the changes in the values ​​of the first flow meter and / or the second flow meter are obtained to determine whether the pump is pumping water smoothly.

6. The multi-functional testing line for the pump according to claim 1, characterized in that: The flow testing unit includes multiple flow testing mechanisms arranged side by side. Each flow testing mechanism includes a second pressure holding module, a second input module, and a second output module. The second pressure holding module has a second conductive needle. The second input module is connected to a liquid tank. The second output module is connected to a third flow meter. The third flow meter is used to obtain the amount of water pumped by the pump within a preset time.

7. The multi-functional testing line for pumps according to claim 1, characterized in that: The airtightness testing unit includes multiple airtightness testing mechanisms arranged side by side. Each airtightness testing mechanism includes a third pressure holding module, a third input module, and a third output module. The third pressure holding module has a third conductive needle. The third input module is connected to an air source. A fourth flow meter is installed between the third input module and the air source. The third output module is connected to a fifth flow meter. The airtightness of the pump is determined by the values ​​measured by the fourth and fifth flow meters respectively.

8. The multi-functional testing line for the pump according to claim 1, characterized in that: The sorting and unloading unit includes a material transfer module, a conveying module, a pump container, a pump pusher, several NG transfer modules, and several qualified product transfer modules. The several NG transfer modules and several qualified product transfer modules are arranged sequentially along the conveying direction of the conveying module. The material transfer module is used to transfer the pump in the carrier to the pump container. The conveying module is used to move the pump container. The pump pusher is installed in the pump container and is used to push the pump in the pump container away from the pump container.

Images