An airtightness testing device and method for industrial drainage pumps.

Abstract

This invention discloses an airtightness testing device and method for industrial drainage pumps, relating to the technical field of airtightness testing devices, and particularly to the technical field of drainage pumps and airtightness testing in conjunction with production. It includes a component damage testing unit, a pump casing airtightness testing unit, a machine casing airtightness testing unit, an assembly unit, a whole machine airtightness testing unit, a multi-level sorting unit, a disassembly unit, a testing and acquisition module, and a testing and analysis module. This invention realizes an integrated workflow for airtightness testing, multi-level screening, assembly, component recycling, and packaging during the production process of exhaust pumps, thereby improving the quality of products leaving the factory, reducing component wear, and achieving more accurate airtightness through multiple testing and screening. Furthermore, by collecting, operating, calculating, and comparing information during the integrated production and testing process of exhaust pumps, a comprehensive rectification text for manufactured components is generated, reducing component wear during production and improving production efficiency.

Description

Technical Field

[0001] This invention relates to the field of airtightness testing devices, and more particularly to an airtightness testing device and testing method for industrial drainage pumps. Background Technology

[0002] Industrial drainage pumps generally refer to those used in industrial water treatment. They are well-matched with equipment, of high quality and performance, and meet industrial-grade production standards. They are often called "industrial water pumps" or "liquid pumps, water pumps, or water pumps." They are machines that transport or pressurize liquids. If the airtightness of the water pump is not good, insufficient power or liquid leakage from the pump may occur when the pump is transporting liquids, affecting the use of the pump and even creating safety hazards.

[0003] Existing equipment has some shortcomings. Often, the airtightness of industrial drainage pumps is tested on the pump casing and machine housing before assembly. The machine housing is not the outer shell of the motor, but rather the housing that protects the motor, encloses it, and is fixedly connected to the pump casing. Alternatively, the entire pump is tested after assembly. The testing methods are relatively simple, cannot be linked with production equipment, and require multiple tests, resulting in low testing accuracy. This leads to a high rate of pump repairs after leaving the factory, affecting the relationship between the company and its customers and causing a decline in economic benefits. At the same time, the connection between the motor and the pump casing, and between the machine housings, is sealed by components such as sealing rings. When the sealing rings are of poor quality, such as surface cracking or internal bubbling, the durability of the components decreases, the aging of the components accelerates, and the drainage pump is prone to water ingress and damage, affecting the product qualification rate.

[0004] To address the aforementioned technical shortcomings, a solution is proposed. Summary of the Invention

[0005] The purpose of this invention is to achieve an integrated workflow for airtightness testing, multi-level screening, assembly, component recycling, and packaging during the production of exhaust pumps. This is achieved by setting up a component damage detection unit, a pump casing airtightness detection unit, a machine casing airtightness detection unit, an assembly unit, a whole machine airtightness detection unit, a multi-level sorting unit, a disassembly unit, and in conjunction with a detection and data acquisition module and a detection and analysis module. This improves the quality of products leaving the factory, enhances the efficiency of testing and assembly, reduces component wear, and allows for more accurate airtightness testing through multiple screening and detection processes. Furthermore, it integrates information collection and processing during the integrated production and testing process of exhaust pumps. The process involves calculation and comparison to generate a comprehensive rectification text for manufactured components. This facilitates the resetting and repositioning of each unit by the testing department personnel, adjustment of its technical parameters, and maintenance and correction of the components in each unit. This reduces component wear during production, improves production efficiency, and solves the problem that traditional airtightness testing equipment often tests the airtightness of the drainage pump before or after assembly, resulting in inaccurate airtightness testing, inability to make overall evaluation of parts in the same batch, and easy high wear and tear on components. At the same time, it also solves the problem that traditional testing equipment is too singular and segmented, and cannot simultaneously perform assembly of drainage pumps and airtightness testing of drainage pumps.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An airtightness testing device for industrial drainage pumps, based on a local area network signal connection to a server, includes:

[0008] The component damage detection unit is used to detect the degree of damage to components and send qualified components to the assembly unit. The component damage detection unit is equipped with an ultrasonic detector to detect the degree of cracking in the internal gaps of the components.

[0009] The pump casing air tightness testing unit is used to test the air tightness of the pump casing and screen qualified pump casings before sending them to the assembly unit.

[0010] The housing airtightness testing unit is used to test the airtightness of the housing and screen qualified housings before sending them to the assembly unit.

[0011] The assembly unit is used to receive qualified pump casings, housings and parts and assemble them into a complete machine, and also sends the complete machine to the airtightness testing unit.

[0012] The whole machine airtightness testing unit is used to detect and analyze the airtightness of the whole machine and control the operation of the multi-stage sorting unit;

[0013] The multi-level sorting unit is used to adapt to the whole machine airtightness detection unit to screen the whole machine, and to allocate unqualified whole machines to the splitting unit, and send qualified whole machines to the packaging unit for packaging.

[0014] The splitting unit is used to split up the defective whole machine and generate parts, pump housings and machine housings, and send them to the parts damage detection unit, pump housing airtightness detection unit and machine housing airtightness detection unit respectively.

[0015] The component damage detection unit, pump housing airtightness detection unit, and housing airtightness detection unit respectively receive the components, pump housing, and housing, conduct separate re-inspections, and then resend the qualified components, pump housing, and housing to the assembly unit.

[0016] The server is equipped with:

[0017] The detection and acquisition module is used to collect the airtightness test data of the unit and send it to the detection and analysis module. The airtightness test data of the unit consists of the average pass rate of component damage collected by the component damage detection unit, the pass rate of pump casing airtightness test collected by the pump casing airtightness detection unit, the pass rate of casing airtightness test collected by the housing airtightness detection unit, and the pass rate of whole machine airtightness test collected by the whole machine airtightness detection unit.

[0018] The detection and analysis module is used to receive the airtightness test data of the unit and analyze and calculate it to obtain the component differential loss percentage and the comprehensive rectification text of the manufactured component. It also sends the generated comprehensive rectification text of the manufactured component to the terminal of the detection department for display through the component execution unit.

[0019] Furthermore, the working steps of the detection and analysis module are as follows:

[0020] Sa: The detection and analysis module receives the average pass rate of component damage collected by the component damage detection unit, the pass rate of pump casing airtightness collected by the pump casing airtightness detection unit, the pass rate of machine casing airtightness collected by the machine casing airtightness detection unit, and the pass rate of whole machine airtightness collected by the whole machine airtightness detection unit, and calibrates them as Q, W, E, and R respectively, and then applies the formula... The comprehensive evaluation factor A for product airtightness was obtained.

[0021] e1, e2, e3, e4, e5 and e6 are weight correction factors. The weight correction factors make the calculated results closer to the true value, and e5 is less than e4, less than e1, less than e2, less than e3 and less than e6. e1+e2+e3+e4+e5+e6=5.34.

[0022] Sb: Compare the generated product airtightness comprehensive evaluation impact factor A with the warning value a:

[0023] When A is greater than a, a component-wide early warning alarm signal is generated; otherwise, no component early warning alarm signal is generated.

[0024] Sc: After a component-wide early warning alarm signal is generated, the component's differentiated wear percentage is obtained. The system also edits the comprehensive rectification text for manufactured components and sends it to the testing department terminal through the component execution unit. When the testing department personnel see the comprehensive rectification text for manufactured components, they reset each unit, adjust its technical parameters, and maintain and correct the components of each unit, thereby reducing component wear and tear during the production process and improving production efficiency.

[0025] Furthermore, the comprehensive rectification text for the manufacturing components states that "the airtightness loss of the industrial drainage pump is B, and the wear rate of its production line components is high, requiring technical adjustments and maintenance of each unit of the production line."

[0026] Furthermore, the airtightness testing unit of the whole machine includes a testing box, a sealing partition, a booster, a gas flow detector, and a magnetic detector. The booster is located at the top of the testing box, and the sealing partition is fixedly installed inside the testing box. The sealing partition and the testing box cooperate to form a solution chamber located on the bottom surface of the sealing partition and a testing chamber located on the top surface of the sealing partition. The sealing partition is provided with a testing gas pipe, which connects the testing chamber and the solution chamber respectively. The bottom end of the testing gas pipe is located at the bottom of the solution chamber.

[0027] The gas flow detector and magnetic detector are both located on the outside of the detection chamber. The gas flow detector is connected to the solution chamber through a pipe. The magnetic detector is electrically connected to an airtight magnetic plate, which is fixed inside the detection chamber. The airtight magnetic plate has a magnetic emission plate and a magnetic induction plate, which are fitted together with a gap. An electric turntable is installed at the center of the top surface of the sealing partition. A locking assembly for locking and fixing the whole machine is installed around the electric turntable. A left telescopic guide tube and a right telescopic guide tube are symmetrically arranged on the top wall of the detection chamber. The left telescopic guide tube is connected to the booster through a guide tube. A clamping plate is fixed at the center of the top wall of the detection chamber. The clamping plate has symmetrical clamping hooks, which pass through the ends of the left and right telescopic guide tubes respectively.

[0028] Furthermore, both the left and right telescopic conduits are equipped with clamping rings that fit the clip hooks at their ends.

[0029] Furthermore, the locking assembly includes a tube body, a lead screw, a swivel ring, a nut seat, and a connecting rod. The tube body is fixedly mounted on the outer end of the electric turntable. The lead screw is rotatably mounted inside the tube body. The top end of the lead screw penetrates the inner wall of the tube body and extends to its exterior, where it is fixedly connected to the swivel ring. The tube body has a slide rail. The connecting rod penetrates the slide rail of the tube body and extends to its interior, where it is threaded onto the outer end of the lead screw. The bottom end of the lead screw, away from the tube body, is fixedly mounted on a locking lug adapted to an industrial drainage pump.

[0030] Furthermore, the server also includes a graded detection module, which receives the airtightness detection status information from the whole machine airtightness detection unit and generates a first qualified product control signal, a second qualified product control signal, a first unqualified product control signal, or a second unqualified product control signal through operation. It also sends these signals to the component execution unit. The component execution unit receives the qualified and unqualified product control signals and controls the multi-level sorting unit to perform sorting. Specifically, the multi-level sorting unit delivers qualified products to the packaging unit for packaging and encapsulation, and sends unqualified products to the splitting unit for disassembly and recycling.

[0031] Furthermore, the detection and acquisition module is also used to collect the airtightness detection status information of the whole machine airtightness detection unit and send it to the graded detection module; wherein the airtightness detection status information of the whole machine airtightness detection unit consists of the gas flow sensing value sensed in real time by the gas flow detector and the magnetic flux sensing value sensed by the magnetic detector.

[0032] Furthermore, the working steps of the graded detection module are as follows:

[0033] Sa: The real-time gas flow sensing value of the gas flow detector and the magnetic flux sensing value of the magnetic detector are respectively calibrated as M and N;

[0034] Sb: Compare the real-time gas flow sensing value M of the gas flow detector with the preset value 0. When M is greater than 0, a first unqualified product control signal is generated; when M is equal to 0, a first qualified product control signal is generated.

[0035] Sc: After the first qualified finished product control signal is generated, the magnetic flux N sensed by the magnetic detector is obtained, and then the formula is used... The average magnetic throughput C of multiple sets of magnetic throughput N is obtained, where i is a non-zero positive integer. C is compared with a preset value c. If C is less than c, a second unqualified product control signal is generated; otherwise, a second qualified product control signal is generated.

[0036] Sd: Sends the generated first non-conforming product control signal, second non-conforming product control signal, or second conforming product control signal to the component execution unit.

[0037] A testing method for an airtightness testing device for industrial drainage pumps, the specific working steps of which are as follows:

[0038] Step 1: Classify the purchased or manufactured components into parts, pump housings, and machine housings. Then, conduct preliminary airtightness tests on the classified parts, pump housings, and machine housings through the parts damage detection unit, pump housing airtightness detection unit, and machine housing airtightness detection unit, and record the results to generate the pass rate. Then, send the qualified parts, pump housings, and machine housings to the assembly unit to assemble them into finished products. The airtightness of the parts, pump housings, and machine housings is initially screened to improve the yield rate when they are assembled into the whole machine.

[0039] Step 2: After assembling the parts into a complete machine, transport it to the airtightness testing unit via conveyor belt to test the airtightness of the complete machine. Connect the left and right telescopic pipes of the airtightness testing unit to the inlet and outlet of the complete machine, respectively. Then start the booster to pressurize the machine.

[0040] When the airtightness of the whole machine is not good, the pressure of the whole machine is leaked out, and then enters the solution chamber through the detection air tube, causing bubbles to be generated in the solution chamber. After the air pressure in the solution chamber changes, the gas flows out from the gas flow detector. At this time, the detection and acquisition module collects the gas flow sensing value sensed by the gas flow detector in real time and sends it to the graded detection module to determine that the whole machine is unqualified and generate the first unqualified product control signal.

[0041] When the airtightness of the whole machine is good, the pressure of the whole machine will not leak out, thus generating the first qualified control signal. After the first qualified control signal is generated, the magnetic detector is started to send and sense the magnetic flux through the airtight magnetic plate and record it. Then, the electric turntable is started to rotate and drive the whole machine to move its position, so that the magnetic detector records multiple sets of magnetic flux. Then, the detection and acquisition module sends the magnetic flux sensed by the magnetic detector to the grading detection module. The grading detection module calculates the average magnetic flux through multiple sets of magnetic flux and then compares the average magnetic flux with the preset value to generate the second unqualified product control signal or the second qualified control signal.

[0042] Step 3: After generating the first non-conforming product control signal, the second non-conforming product control signal, or the second conforming product control signal, send them to the component execution unit;

[0043] Step 3: After the first non-conforming product control signal is generated, the component execution unit determines that the whole machine is a non-conforming product, and then controls the whole machine airtightness detection unit to send the whole machine to the multi-level sorting unit, and then controls the multi-level sorting unit to send the whole machine to the splitting unit.

[0044] When the second non-conforming product control signal is generated, the component execution unit determines that the whole machine is a non-conforming product, and then controls the multi-level sorting unit to send the whole machine to the splitting unit;

[0045] After the second qualified finished product control signal is generated, the component execution unit determines that the whole machine is a qualified finished product, and then controls the multi-level sorting unit to send the whole machine to the packaging unit for packaging and boxing.

[0046] Step 4: When the defective complete machine arrives at the disassembly unit, the disassembly unit disassembles the complete machine into parts, pump housings and machine housings. The sorted parts, pump housings and machine housings are then transported back to the parts damage detection unit, pump housing airtightness detection unit and machine housing airtightness detection unit for re-inspection. Qualified parts are screened out, thereby recycling and reusing the parts and reducing consumption costs.

[0047] Step 5: Resend the qualified parts to the assembly unit for assembly, and then repeat steps 1 and 4 to complete the cyclic airtightness test and cooperate with the production assembly of the drainage pump until all the parts of the same batch purchased are used up and packaged.

[0048] Step Six: The detection and acquisition module collects the airtightness test data of the unit and sends it to the detection and analysis module. The detection and analysis module receives the airtightness test data of the unit, performs calibration calculations on the internal data, and finally generates the component differential wear percentage and the comprehensive rectification text of the manufactured component. Then, the generated comprehensive rectification text of the manufactured component is sent to the terminal of the detection department through the component execution unit for display. When the personnel of the detection department see the comprehensive rectification text of the manufactured component, they reset each unit, adjust its technical parameters, and maintain and correct the components of each unit, thereby reducing the wear of components during the production process and improving production efficiency.

[0049] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0050] (1) This invention, by setting up a component damage detection unit, a pump casing airtightness detection unit, a machine casing airtightness detection unit, an assembly unit, a whole machine airtightness detection unit, a multi-level sorting unit, a disassembly unit, and cooperating with a detection acquisition module and a detection analysis module, realizes an integrated workflow for airtightness detection and multi-level screening, assembly, component recycling and packaging during the exhaust pump production process. This improves the quality of the enterprise's products leaving the factory, enhances the efficiency of detection and assembly work, reduces component wear, and makes the airtightness detection more accurate through multiple detection and screening. Furthermore, it collects, operates, and calculates information during the integrated production and detection process of the exhaust pump. The calculation and comparison process generates a comprehensive rectification text for manufactured components, facilitating the resetting and adjustment of each unit by the testing department personnel, adjusting its technical parameters, and maintaining and correcting the components of each unit. This reduces component wear during production, improves production efficiency, and solves the problem that traditional airtightness testing equipment often tests the airtightness of the drainage pump before or after assembly, resulting in inaccurate airtightness testing, inability to make overall evaluations of parts in the same batch, and easy high wear and tear on components. At the same time, it also solves the problem that traditional testing equipment is too singular and segmented, and cannot simultaneously perform assembly of drainage pumps and drainage pump airtightness testing.

[0051] (2) By setting up a whole machine airtightness detection unit, a detection acquisition module and a graded detection module, the present invention performs multiple tests on the whole machine in the whole machine airtightness detection unit, thereby improving the intelligence of the production line and the accuracy of the test. Attached Figure Description

[0052] Figure 1 A schematic diagram of the structure of the present invention is shown;

[0053] Figure 2 A schematic diagram of the process of the present invention is shown;

[0054] Figure 3 A cross-sectional view of the overall airtightness testing unit is shown;

[0055] Figure 4 It shows Figure 3 A magnified view of part A;

[0056] Figure 5 An enlarged cross-sectional view of the latch assembly is shown;

[0057] Legend: 1. Detection box; 2. Sealing partition; 3. Electric turntable; 4. Locking assembly; 5. Booster; 6. Gas flow detector; 7. Airtight magnetic plate; 8. Magnetic detector; 9. Left telescopic tube; 10. Right telescopic tube; 11. Detection gas tube; 12. Clamping plate; 13. Clamping hook; 14. Clamping ring; 401. Tube body; 402. Lead screw; 403. Rotary ring; 404. Nut seat; 405. Connecting rod; 406. Locking protrusion. Detailed Implementation

[0058] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0059] Please see Figure 1 - Figure 5 The present invention provides a technical solution:

[0060] An airtightness testing device for industrial drainage pumps, based on a local area network signal connection to a server, includes:

[0061] The component damage detection unit is used to detect the degree of damage to components and send qualified components to the assembly unit. The component damage detection unit is equipped with an ultrasonic testing instrument, which detects the degree of cracking in the internal gaps of the components. Ultrasonic testing (UT) is a type of non-destructive testing that uses ultrasonic technology.

[0062] The pump casing air tightness testing unit is used to test the air tightness of the pump casing and screen qualified pump casings before sending them to the assembly unit.

[0063] The housing airtightness testing unit is used to test the airtightness of the housing and screen qualified housings before sending them to the assembly unit.

[0064] Both the housing airtightness testing unit and the housing airtightness testing unit use an ultrasonic testing instrument to test the airtightness of the housing and pump housing, and to detect the degree of damage to the housing and pump housing.

[0065] The assembly unit is used to receive qualified pump casings, housings and parts and assemble them into a complete machine, and also sends the complete machine to the airtightness testing unit.

[0066] The whole machine airtightness testing unit is used to detect and analyze the airtightness of the whole machine and control the operation of the multi-stage sorting unit;

[0067] The multi-level sorting unit is used to adapt to the whole machine airtightness detection unit to screen the whole machine, and to allocate unqualified whole machines to the splitting unit, and send qualified whole machines to the packaging unit for packaging.

[0068] The disassembly unit is used to disassemble defective complete machines and generate parts, pump housings, and machine housings, which are then sent to the parts damage detection unit, pump housing airtightness detection unit, and machine housing airtightness detection unit, respectively. The disassembly unit can also be used to manually remove visible damaged parts.

[0069] The component damage detection unit, pump housing airtightness detection unit, and housing airtightness detection unit respectively receive the components, pump housing, and housing, conduct separate re-inspections, and then resend the qualified components, pump housing, and housing to the assembly unit.

[0070] The server is equipped with:

[0071] The detection and acquisition module is used to collect the airtightness test data of the unit and send it to the detection and analysis module; the detection and acquisition module is also used to collect the airtightness test status information of the whole machine airtightness test unit and send it to the graded detection module; the airtightness test data of the unit consists of the average pass rate of component damage degree collected by the component damage degree test unit, the pass rate of pump casing airtightness test collected by the pump casing airtightness test unit, the pass rate of casing airtightness test collected by the casing airtightness test unit, and the pass rate of whole machine airtightness test collected by the whole machine airtightness test unit; while the airtightness test status information of the whole machine airtightness test unit consists of the gas flow sensing value sensed in real time by the gas flow detector 6 and the magnetic flux sensing value sensed by the magnetic detector 8.

[0072] The detection and analysis module is used to receive the airtightness test data of the unit and analyze and calculate it to obtain the component differential loss percentage and the comprehensive rectification text of the manufactured component. It also sends the generated comprehensive rectification text of the manufactured component to the terminal of the detection department for display through the component execution unit.

[0073] The graded detection module is used to receive the airtightness detection status information of the whole machine airtightness detection unit and generate a first qualified product control signal, a second qualified product control signal, a first unqualified product control signal, or a second unqualified product control signal through operation. It also sends the first qualified product control signal, the second qualified product control signal, the first unqualified product control signal, or the second unqualified product control signal to the component execution unit.

[0074] The component execution unit receives control signals for qualified and unqualified finished products and controls the multi-level sorting unit to work and sort. Specifically, the multi-level sorting unit works by conveying qualified finished products to the packaging unit for packaging and sealing, and sending unqualified finished products to the splitting unit for splitting and recycling.

[0075] The airtightness testing unit includes a testing chamber 1, a sealing partition 2, a booster 5, a gas flow detector 6, and a magnetic detector 8. The booster 5 is located at the top of the testing chamber 1. The sealing partition 2 is fixedly installed inside the testing chamber 1. The sealing partition 2 and the testing chamber 1 cooperate to form a solution chamber located on the bottom surface of the sealing partition 2 and a testing chamber located on the top surface of the sealing partition 2. A testing gas pipe 11 is provided on the sealing partition 2. The testing gas pipe 11 passes through and connects the testing chamber and the solution chamber respectively. The bottom end of the testing gas pipe 11 is the bottom of the solution chamber.

[0076] Gas flow detector 6 and magnetic detector 8 are both located on the outside of detection box 1. Gas flow detector 6 is connected to solution chamber through pipe. Magnetic detector 8 is electrically connected to airtight magnetic plate 7. Airtight magnetic plate 7 is fixed inside detection box 1 and is equipped with magnetic emission plate and magnetic induction plate. Magnetic emission plate and magnetic induction plate are fitted with a gap. Electric turntable 3 is installed at the center of the top surface of sealing partition 2. Locking assembly 4 for locking and fixing the whole machine is installed around the electric turntable 3. Left telescopic guide tube 9 and right telescopic guide tube 10 are symmetrically arranged on the top wall of detection box 1. Left telescopic guide tube 9 is connected to booster 5 through guide tube. Clamping plate 12 is fixed at the center of the top wall of detection box 1. Clamping plate 12 is symmetrically equipped with clamping hooks 13. Clamping hooks 13 pass through the ends of left telescopic guide tube 9 and right telescopic guide tube 10 respectively. Clamping rings 14 adapted to clamping hooks 13 are provided at the ends of left telescopic guide tube 9 and right telescopic guide tube 10.

[0077] The locking assembly 4 includes a tube body 401, a lead screw 402, a swivel ring 403, a nut seat 404, and a connecting rod 405. The tube body 401 is fixedly installed at the outer end of the electric turntable 3. The lead screw 402 is rotatably installed inside the tube body 401. The top end of the lead screw 402 penetrates the inner wall of the tube body 401 and extends to its outside, and is fixedly connected to the swivel ring 403. The tube body 401 has a slide rail. The connecting rod 405 penetrates the slide rail of the tube body 401 and extends to its inside, and is threadedly sleeved on the outer end of the lead screw 402. The bottom end of the lead screw 402 away from the tube body 401 is fixedly installed at a locking protrusion 406 that is adapted to the installation hole of the industrial drainage pump. The locking protrusion 406 is embedded in the installation hole of the industrial drainage pump to fix it.

[0078] Working principle:

[0079] Step 1: Classify the purchased or manufactured components into parts, pump housings, and machine housings. Then, conduct preliminary airtightness tests on the classified parts, pump housings, and machine housings through the parts damage detection unit, pump housing airtightness detection unit, and machine housing airtightness detection unit, and record the results to generate the pass rate. Then, send the qualified parts, pump housings, and machine housings to the assembly unit to assemble them into finished products. The airtightness of the parts, pump housings, and machine housings is initially screened to improve the yield rate when they are assembled into the whole machine.

[0080] Step 2: After assembling the parts into a complete machine, transport it to the airtightness testing unit of the complete machine via conveyor belt to perform an airtightness test on the complete machine. Connect the left telescopic pipe 9 and the right telescopic pipe 10 of the airtightness testing unit to the water inlet and water outlet of the complete machine, respectively. Then start the booster 5 to pressurize the machine.

[0081] When the airtightness of the whole machine is not good, the pressure of the whole machine is leaked out, and then enters the solution chamber through the detection air pipe 11, causing the solution in the solution chamber to generate bubbles. Then the gas pressure in the solution chamber changes and flows out from the gas flow detector 6. At this time, the detection acquisition module collects the gas flow sensing value sensed by the gas flow detector 6 in real time and sends it to the graded detection module to determine that the whole machine is unqualified and generate the first unqualified finished product control signal.

[0082] When the airtightness of the whole machine is intact, the pressure of the whole machine will not leak out, thus generating the first qualified control signal. After the first qualified control signal is generated, the magnetic detector 8 is started to send and sense the magnetic flux through the airtight magnetic plate 7 and record it. Then, the electric turntable 3 is started to rotate and drive the whole machine to move its position, so that the magnetic detector 8 records multiple sets of magnetic flux. Then, the detection and acquisition module sends the magnetic flux sensed by the magnetic detector 8 to the grading detection module. The grading detection module calculates the average magnetic flux through multiple sets of magnetic flux and then compares the average magnetic flux with the preset value to generate the second unqualified product control signal or the second qualified control signal. After the first unqualified product control signal, the second unqualified product control signal, or the second qualified control signal is generated, it is sent to the component execution unit.

[0083] The specific workflow of the grading detection module is as follows:

[0084] Sa: The gas flow sensing value sensed in real time by the gas flow detector 6 and the magnetic flux sensing value sensed by the magnetic detector 8 are respectively calibrated as M and N;

[0085] Sb: Compare the gas flow sensing value M sensed in real time by the gas flow detector 6 with the preset value 0. When M is greater than 0, a first unqualified product control signal is generated. When M is equal to 0, a first qualified product control signal is generated.

[0086] Sc: After the first qualified finished product control signal is generated, the magnetic flux N sensed by the magnetic detector 8 is obtained, and then the formula is used... The average magnetic throughput C of multiple sets of magnetic throughput N is obtained, where i is a non-zero positive integer. C is compared with a preset value c. If C is less than c, a second unqualified product control signal is generated; otherwise, a second qualified product control signal is generated. A larger average magnetic throughput C indicates that there are more gaps and the emitted magnetic wires cannot pass through.

[0087] Sd: Sends the generated first non-conforming product control signal, second non-conforming product control signal, or second conforming product control signal to the component execution unit;

[0088] Step 3: After the first non-conforming product control signal is generated, the component execution unit determines that the whole machine is a non-conforming product, and then controls the whole machine airtightness detection unit to send the whole machine to the multi-level sorting unit, and then controls the multi-level sorting unit to send the whole machine to the splitting unit.

[0089] When the second non-conforming product control signal is generated, the component execution unit determines that the whole machine is a non-conforming product, and then controls the multi-level sorting unit to send the whole machine to the splitting unit;

[0090] After the second qualified finished product control signal is generated, the component execution unit determines that the whole machine is a qualified finished product, and then controls the multi-level sorting unit to send the whole machine to the packaging unit for packaging and boxing.

[0091] Step 4: When the defective complete machine arrives at the disassembly unit, the disassembly unit disassembles the complete machine into parts, pump housings and machine housings. The sorted parts, pump housings and machine housings are then transported back to the parts damage detection unit, pump housing airtightness detection unit and machine housing airtightness detection unit for re-inspection. Qualified parts are screened out, thereby recycling and reusing the parts and reducing consumption costs.

[0092] Step 5: Resend the qualified parts to the assembly unit for assembly, and then repeat steps 1 and 4 to complete the cyclic airtightness test and cooperate with the production assembly of the drainage pump until all the parts purchased in the same batch are used up and packaged; thereby improving the product yield and enhancing the company's sales quality.

[0093] Step Six: The detection and acquisition module collects the airtightness test data of the unit and sends it to the detection and analysis module. The detection and analysis module receives the airtightness test data of the unit, performs calibration calculations on the internal data, and finally generates the component differential wear percentage and the comprehensive rectification text of the manufacturing component. Then, the generated comprehensive rectification text of the manufacturing component is sent to the terminal of the detection department through the component execution unit for display. When the personnel of the detection department see the comprehensive rectification text of the manufacturing component, they reset each unit, adjust its technical parameters, and maintain and correct the components of each unit, thereby reducing the wear of components during the production process and improving production efficiency.

[0094] The specific working steps of the detection and analysis module are as follows:

[0095] Sa: The detection and analysis module receives the average pass rate of component damage collected by the component damage detection unit, the pass rate of pump casing airtightness collected by the pump casing airtightness detection unit, the pass rate of machine casing airtightness collected by the machine casing airtightness detection unit, and the pass rate of whole machine airtightness collected by the whole machine airtightness detection unit, and calibrates them as Q, W, E, and R respectively, and then applies the formula... The comprehensive evaluation factor A for product airtightness was obtained.

[0096] e1, e2, e3, e4, e5 and e6 are weight correction factors. The weight correction factors make the calculated results closer to the true value, and e5 is less than e4, less than e1, less than e2, less than e3 and less than e6. e1+e2+e3+e4+e5+e6=5.34.

[0097] Sb: Compare the generated product airtightness comprehensive evaluation impact factor A with the warning value a:

[0098] When A is greater than a, a component-wide early warning alarm signal is generated; otherwise, no component early warning alarm signal is generated.

[0099] Sc: After a component-wide early warning alarm signal is generated, the component's differentiated wear percentage is obtained. The system then edits a comprehensive rectification text for manufactured components and sends it to the testing department terminal via the component execution unit. When the testing department personnel see the comprehensive rectification text, they reset each unit, adjust its technical parameters, and maintain and correct the components in each unit, thereby reducing component wear during production and improving production efficiency. The comprehensive rectification text for manufactured components states: "The airtightness loss of the industrial drainage pump is B. The wear of its production line components is relatively high, and technical adjustments and maintenance of each unit in the production line are required."

[0100] In summary, this invention, by setting up a component damage detection unit, a pump casing airtightness detection unit, a machine casing airtightness detection unit, an assembly unit, a whole machine airtightness detection unit, a multi-level sorting unit, a disassembly unit, and cooperating with a detection acquisition module and a detection analysis module, realizes an integrated workflow for airtightness detection, multi-level screening, assembly, component recycling, and packaging during the exhaust pump production process. This improves the quality of products leaving the factory, enhances the efficiency of detection and assembly work, and reduces component wear. By collecting, running, calculating, and comparing information during the integrated production and detection process of the exhaust pump, a comprehensive rectification text for manufactured components is generated, facilitating the testing department personnel to reset and adjust the technical parameters of each unit and maintain and correct the components of each unit, thereby reducing component wear during production and improving production efficiency. Furthermore, by setting up a whole machine airtightness detection unit, a detection acquisition module, and a graded detection module, the whole machine within the whole machine airtightness detection unit is tested multiple times, improving the intelligence of the production line and the accuracy of detection.

[0101] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An air tightness detection device for an industrial drainage pump, which is connected to a server based on a LAN signal, characterized in that, include: The component damage detection unit is used to detect the degree of damage to components and send qualified components to the assembly unit. The component damage detection unit is equipped with an ultrasonic detector, which is used to detect the degree of cracking in the internal gaps of the components. The pump casing air tightness testing unit is used to test the air tightness of the pump casing and screen qualified pump casings before sending them to the assembly unit. The housing airtightness testing unit is used to test the airtightness of the housing and screen qualified housings before sending them to the assembly unit. The assembly unit is used to receive qualified pump casings, housings and parts and assemble them into a complete machine, and also sends the complete machine to the airtightness testing unit. The whole machine airtightness testing unit is used to detect and analyze the airtightness of the whole machine and control the operation of the multi-stage sorting unit; The multi-level sorting unit is used to adapt to the whole machine airtightness detection unit to screen the whole machine, and to allocate unqualified whole machines to the splitting unit, and send qualified whole machines to the packaging unit for packaging. The splitting unit is used to split up the defective whole machine and generate parts, pump housings and machine housings, and send them to the parts damage detection unit, pump housing airtightness detection unit and machine housing airtightness detection unit respectively. The component damage detection unit, pump housing airtightness detection unit, and housing airtightness detection unit respectively receive the components, pump housing, and housing, re-inspect them, and resend the qualified components, pump housing, and housing to the assembly unit. The server is equipped with: The detection and acquisition module is used to collect the airtightness test data of the unit and send it to the detection and analysis module. The airtightness test data of the unit consists of the average pass rate of component damage collected by the component damage detection unit, the pass rate of pump casing airtightness test collected by the pump casing airtightness detection unit, the pass rate of casing airtightness test collected by the housing airtightness detection unit, and the pass rate of whole machine airtightness test collected by the whole machine airtightness detection unit. The detection and analysis module is used to receive the airtightness test data of the unit and analyze and calculate it to obtain the component differential loss percentage and the comprehensive rectification text of the manufactured component. It also sends the generated comprehensive rectification text of the manufactured component to the terminal of the detection department for display through the component execution unit. The working steps of the detection and analysis module are as follows: Sa: The detection and analysis module receives the average pass rate of component damage collected by the component damage detection unit, the pass rate of pump casing airtightness collected by the pump casing airtightness detection unit, the pass rate of machine casing airtightness collected by the machine casing airtightness detection unit, and the pass rate of whole machine airtightness collected by the whole machine airtightness detection unit, and calibrates them as Q, W, E, and R respectively, and then applies the formula... The comprehensive evaluation factor A for the airtightness of the product was obtained. Among them, e1, e2, e3, e4, e5 and e6 are weight correction factors. The weight correction factors make the calculated results closer to the true value, and e5 is less than e4, less than e1, less than e2, less than e3 and less than e6. e1+e2+e3+e4+e5+e6=5.

34. Sb: Compare the generated product airtightness comprehensive evaluation impact factor A with the warning value a: When A is greater than a, a component-wide early warning alarm signal is generated; otherwise, no component early warning alarm signal is generated. Sc: After a component-wide early warning alarm signal is generated, the component's differentiated wear percentage is obtained. The system compiles and edits the comprehensive rectification text for manufactured components, and sends it to the testing department terminal through the component execution unit. When the testing department personnel see the comprehensive rectification text for manufactured components, they reset each unit, adjust its technical parameters, and maintain and correct the components of each unit, thereby reducing the wear and tear of components during the production process and improving production efficiency. The comprehensive rectification document for the manufactured components states that "the airtightness loss of the industrial drainage pump is B, and the wear rate of its production line components is high, requiring technical adjustments and maintenance of each unit of the production line." The airtightness testing unit includes a testing chamber, a sealing partition, a booster, a gas flow detector, and a magnetic detector. The booster is located at the top of the testing chamber, and the sealing partition is fixedly installed inside the testing chamber. The sealing partition and the testing chamber cooperate to form a solution chamber located on the bottom surface of the sealing partition and a testing chamber located on the top surface of the sealing partition. A testing gas pipe is provided on the sealing partition. The testing gas pipe passes through and connects the testing chamber and the solution chamber respectively, and the bottom end of the testing gas pipe is the bottom of the solution chamber. The gas flow detector and magnetic detector are both located on the outside of the detection box. The gas flow detector is connected to the solution chamber through a pipe. The magnetic detector is electrically connected to an airtight magnetic plate. The airtight magnetic plate is fixed inside the detection box and has a magnetic emission plate and a magnetic induction plate. The magnetic emission plate and the magnetic induction plate are fitted together with a gap. An electric turntable is installed at the center of the top surface of the sealing partition. A locking assembly for locking and fixing the whole machine is installed around the electric turntable. A left telescopic guide tube and a right telescopic guide tube are symmetrically arranged on the top wall of the detection box. The left telescopic guide tube is connected to the booster through a guide tube. A clamping plate is fixed at the center of the top wall of the detection box. The clamping plate has symmetrical clamping hooks. The clamping hooks pass through the ends of the left telescopic guide tube and the right telescopic guide tube respectively. The locking assembly includes a tube body, a lead screw, a swivel ring, a nut seat, and a connecting rod. The tube body is fixedly mounted on the outer end of the electric turntable. The lead screw is rotatably mounted inside the tube body. The top end of the lead screw penetrates the inner wall of the tube body and extends to its outside, where it is fixedly connected to the swivel ring. The tube body has a slide rail. The connecting rod penetrates the slide rail of the tube body and extends to its inside, where it is threaded onto the outer end of the lead screw. A locking lug adapted to an industrial drainage pump is fixedly mounted at the bottom end of the lead screw away from the tube body. The detection and acquisition module is also used to collect the air tightness detection status information of the whole machine air tightness detection unit and send it to the graded detection module; the air tightness detection status information of the whole machine air tightness detection unit consists of the gas flow sensing value sensed in real time by the gas flow detector and the magnetic flux sensing value sensed by the magnetic detector.

2. The airtightness testing device for an industrial drainage pump according to claim 1, characterized in that, Both the left and right telescopic conduits are equipped with clamping rings at their ends that fit the clip hooks.

3. The airtightness testing device for an industrial drainage pump according to claim 1, characterized in that, The server also includes a graded detection module, which receives airtightness detection information from the whole machine airtightness detection unit and generates a first qualified product control signal, a second qualified product control signal, a first unqualified product control signal, or a second unqualified product control signal through operation. It also sends these signals to the component execution unit. The component execution unit receives the qualified and unqualified product control signals and controls the multi-level sorting unit to perform sorting. Specifically, the multi-level sorting unit transports qualified products to the packaging unit for packaging and encapsulation, and sends unqualified products to the splitting unit for disassembly and recycling.

4. The airtightness testing device for an industrial drainage pump according to claim 3, characterized in that, The working steps of the graded detection module are as follows: Sa: The real-time gas flow sensing value of the gas flow detector and the magnetic flux sensing value of the magnetic detector are respectively calibrated as M and N; Sb: Compare the real-time gas flow sensing value M of the gas flow detector with the preset value 0. When M is greater than 0, a first unqualified product control signal is generated; when M is equal to 0, a first qualified product control signal is generated. Sc: After the first qualified finished product control signal is generated, the magnetic flux N sensed by the magnetic detector is obtained, and then the formula is used... The average magnetic throughput C of multiple sets of magnetic throughput N is obtained, where i is a non-zero positive integer. C is compared with a preset value c. If C is less than c, a second unqualified product control signal is generated; otherwise, a second qualified product control signal is generated. Sd: Sends the generated first non-conforming product control signal, second non-conforming product control signal, or second conforming product control signal to the component execution unit.

5. A testing method for an airtightness testing device for an industrial drainage pump as described in any one of claims 1-4, characterized in that, The specific work steps are as follows: Step 1: Classify the purchased or manufactured components into parts, pump housings, and machine housings. Then, conduct preliminary airtightness tests on the classified parts, pump housings, and machine housings through the parts damage detection unit, pump housing airtightness detection unit, and machine housing airtightness detection unit, and record the results to generate the pass rate. Then, send the qualified parts, pump housings, and machine housings to the assembly unit to assemble them into finished products. The airtightness of the parts, pump housings, and machine housings is initially screened to improve the yield rate when they are assembled into the whole machine. Step 2: After assembling the parts into a complete machine, transport it to the airtightness testing unit via conveyor belt to test the airtightness of the complete machine. Connect the left and right telescopic pipes of the airtightness testing unit to the inlet and outlet of the complete machine, respectively. Then start the booster to pressurize the machine. When the airtightness of the whole machine is not good, the pressure of the whole machine is leaked out, and then enters the solution chamber through the detection air tube, causing bubbles to be generated in the solution chamber. After the air pressure in the solution chamber changes, the gas flows out from the gas flow detector. At this time, the detection and acquisition module collects the gas flow sensing value sensed by the gas flow detector in real time and sends it to the graded detection module to determine that the whole machine is unqualified and generate the first unqualified product control signal. When the airtightness of the whole machine is good, the pressure of the whole machine will not leak out, thus generating the first qualified control signal. After the first qualified control signal is generated, the magnetic detector is started to send and sense the magnetic flux through the airtight magnetic plate and record it. Then, the electric turntable is started to rotate and drive the whole machine to move its position, so that the magnetic detector records multiple sets of magnetic flux. Then, the detection and acquisition module sends the magnetic flux sensed by the magnetic detector to the grading detection module. The grading detection module calculates the average magnetic flux through multiple sets of magnetic flux and then compares the average magnetic flux with the preset value to generate the second unqualified product control signal or the second qualified control signal. Step 3: After generating the first non-conforming product control signal, the second non-conforming product control signal, or the second conforming product control signal, send them to the component execution unit; Step 3: After the first non-conforming product control signal is generated, the component execution unit determines that the whole machine is a non-conforming product, and then controls the whole machine airtightness detection unit to send the whole machine to the multi-level sorting unit, and then controls the multi-level sorting unit to send the whole machine to the splitting unit. When the second non-conforming product control signal is generated, the component execution unit determines that the whole machine is a non-conforming product, and then controls the multi-level sorting unit to send the whole machine to the splitting unit; After the second qualified finished product control signal is generated, the component execution unit determines that the whole machine is a qualified finished product, and then controls the multi-level sorting unit to send the whole machine to the packaging unit for packaging and boxing. Step 4: When the defective complete machine arrives at the disassembly unit, the disassembly unit disassembles the complete machine into parts, pump housings and machine housings. The sorted parts, pump housings and machine housings are then transported back to the parts damage detection unit, pump housing airtightness detection unit and machine housing airtightness detection unit for re-inspection. Qualified parts are screened out, thereby recycling and reusing the parts and reducing consumption costs. Step 5: Resend the qualified parts to the assembly unit for assembly, and then repeat steps 1 and 4 to complete the cyclic airtightness test and cooperate with the production assembly of the drainage pump until all the parts of the same batch purchased are used up and packaged. Step Six: The detection and acquisition module collects the airtightness test data of the unit and sends it to the detection and analysis module. The detection and analysis module receives the airtightness test data of the unit, performs calibration calculations on the internal data, and finally generates the component differential wear percentage and the comprehensive rectification text of the manufactured component. Then, the generated comprehensive rectification text of the manufactured component is sent to the terminal of the detection department through the component execution unit for display. When the personnel of the detection department see the comprehensive rectification text of the manufactured component, they reset each unit, adjust its technical parameters, and maintain and correct the components of each unit, thereby reducing the wear of components during the production process and improving production efficiency.

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