Automobile oil pump and assembling method

Abstract

The invention discloses an automobile oil pump which comprises a pump body. The pump cover is arranged on the pump body and used for sealing the pump body, forming a complete engine oil flowing space and meanwhile providing an external connecting port. The rotor is arranged in the pump body, the center of the rotor is matched with the transmission shaft, and the rotor is driven by the transmission shaft to rotate and matched with the multiple blades and the swing ring to achieve suction and extrusion of engine oil; the blades are arranged around the rotor by a circle, are arranged in the grooves of the rotor, slide in the grooves and rotate along with the rotor, and are attached to the inner wall of the swing ring, so that the volume between the adjacent blades is changed, and oil pumping is realized; the transmission shaft penetrates through the pump body, is connected with a power source and is used for driving the rotor to rotate. The method has the beneficial effects that the production efficiency and cost are improved, the equipment purchase and maintenance cost is reduced, the failure rate is low, the service life is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile manufacturing, and more particularly, to an automobile oil pump and an assembly method thereof. Background Art

[0002] In the field of automobile manufacturing, the oil pump, as a core component of the engine lubrication system, plays a decisive role in the normal operation of the engine. The existing assembly technology of automobile oil pumps has the following deficiencies. On the one hand, in the manual assembly mode, from the positioning and installation of parts to the overall debugging, it mainly relies on manual operations. When pressing some key parts, such as bowl-shaped plugs and pin sleeves, it is difficult for manual operations to ensure that the pressure and displacement accuracy of each pressing are consistent, which results in uneven product quality. On the other hand, for the detection of the opening and closing states of the solenoid valve, simple electrical testing methods are mostly used, and it is impossible to comprehensively obtain the performance data of the solenoid valve under different working conditions, making it difficult to ensure its stable and reliable operation in the complex automobile operating environment. When detecting the end face clearance values between the end face of the pump body pump chamber and the swing ring, rotor, and vane, the accuracy also fails to meet the increasing performance requirements of modern engines for oil pumps. Moreover, due to the lack of a data collection and management system, the recording of assembly data is incomplete and inaccurate. Once quality problems occur in the product, it is very difficult to quickly and accurately trace back to the specific assembly links and responsible persons, which is not conducive to timely problem-solving and improvement of the production process. In addition, the connection between each process is not tight enough, resulting in a long production cycle and unable to meet the large-scale and high-efficiency production requirements of the automobile manufacturing industry. And there are also deficiencies in the anti-error measures of the existing technology. The phenomena of missing or overloading product parts often occur, which not only affects the product quality but also may lead to increased subsequent rework and repair costs. For key links such as screw tightening and seal ring installation, there is a lack of effective anti-error mechanisms, making it difficult to ensure that each product meets the quality standards. These defects restrict the production quality and efficiency of automobile oil pumps. Summary of the Invention

[0003] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide an automobile oil pump and an assembly method that can effectively solve the above-mentioned technical problems.

[0004] To achieve the above object, the present invention provides an automotive oil pump, comprising a pump body; a pump cover disposed on the pump body for closing the pump body to form a complete oil flow space and providing an external connection interface at the same time; a rotor disposed in the pump body, the center of which is matched with a transmission shaft and rotates driven by the transmission shaft, and cooperates with a plurality of blades and a swing ring to realize the suction and discharge of oil; each blade is arranged around the rotor, disposed in the groove of the rotor and slides in the groove, and rotates with the rotor. By fitting with the inner wall of the swing ring, the volume between adjacent blades is changed to realize oil pumping; the swing ring is disposed in the pump body and located outside the rotor, and the inner wall thereof is in contact and cooperation with the blades to change the working volume of the blades and is used for adjusting the output flow rate of the oil pump; the transmission shaft penetrates the pump body and is connected to a power source and is used for driving the rotor to rotate; a sliding seal is disposed in the pump body and is used in cooperation with the swing ring.

[0005] Further, it further comprises a solenoid valve disposed on one side of the pump body for controlling the on-off of the circuit and adjusting the working state of the oil pump; a solenoid valve wire plug connected to the solenoid valve for realizing the connection between the solenoid valve and the outside and transmitting control signals. Further, it further comprises a pilot valve filter screen and a filter screen cover disposed at the inlet of the oil passage in the pump body for filtering the oil entering the oil pump; the filter screen cover is disposed on the pump body, and a filter screen is disposed on the filter screen cover, and the filter screen is used for filtering the oil. Further, an installation cavity is disposed on the pump body, and a steel ball and a valve seat are disposed in the installation cavity, and a safety valve spring is disposed between the steel ball and the valve seat. Further, the pump body further comprises an adjusting spring and an adjusting valve core, and the adjusting valve core changes its position under the action of the adjusting spring for adjusting the pressure and flow rate of the oil. Further, there are two retaining rings in the swing ring, and each retaining ring is respectively located at the upper and lower ends of the rotor, and the number of the blades is seven, and each retaining ring is located between each blade. Further, an inner groove is formed in the pump body, and an outer groove is formed in the outer wall of the swing ring, and a sliding pin is located between the inner groove and the outer groove for restricting the movement track of the swing ring. Further, two positioning pin holes are formed in the pump cover, and two positioning pins matched with the positioning pin holes are disposed on the pump body for positioning during the assembly of the pump body and the pump cover; a sealing ring installation groove is formed at the oil outlet, and a sealing ring is disposed in the sealing ring installation groove and is installed at the oil outlet of the pump body for sealing the oil outlet; a first bowl-shaped plug and a second bowl-shaped plug are press-fitted into the holes of the pump body for plugging the pump body to prevent oil leakage.

[0006] Assembly method of an automotive oil pump, comprising: S1. Pump body marking; S11: Manually pick up the pump body and install it on the coding fixture. Start the coding station with both hands to perform coding. S12: After coding, scan the QR code on the pump body, and upload the data to the server for one-to-one correspondence with the batch information. S13: Pre-assemble four screws and the pilot valve filter screen. S14: The cylinder that pushes out the barcode scanner retracts, waiting for manual removal. S15: Install the solenoid valve on the detection fixture, start the detection station with both hands. After the detection is completed, if the detection is qualified, the barcode scanner scans and uploads the qualified information, and put the coded pump body and the qualified solenoid valve into the in-line fixture. If the detection is unqualified, alarm, the solenoid valve information is not uploaded, and it is put into the non-conforming product box.

[0007] S2. Press-fit the second cup plug and detect the pilot valve filter screen; S21: The in-line blocking cylinder extends to stop the in-line fixture at a fixed position on the conveyor. The photoelectric switch senses the in-line fixture, and the in-line barcode scanner scans the traceability code of the workpiece. If it is unqualified, the data of the workpiece is locked, the six-axis robot manipulator does not pick up the workpiece, the blocking cylinder retracts, and the in-line fixture continues to flow on the conveyor to the next station. S22: The six-axis manipulator sequentially picks up the workpieces on the conveyor and places them on the positioning fixture. The clamping cylinder clamps the workpiece, the wedge-shaped cylinder pushes the leveling fixture to support the workpiece, and the manipulator moves away. S23: The electric cylinder descends to press-fit the second cup plug, and at the same time the laser sensor detects the presence of the filter screen, and then rises after the press-fitting. S24: Enter the pressure and displacement data into the traceability code to form a pressure-displacement curve, and determine whether it is qualified. S25: The six-axis manipulator first grabs the workpiece on the fixture, the clamping cylinder and the wedge-shaped cylinder release the workpiece, and then the six-axis manipulator places the workpiece into the in-line tray. The in-line cylinder retracts, and the workpiece is transported by the conveyor to the next station, and the manipulator stands by to grab. S26: After the workpiece is taken away, the finger cylinder of the feeding mechanism clamps the second cup plug at the outlet of the feeder and sends it below the press head. The vacuum press head sucks the second cup plug and waits for press-fitting, and the finger cylinder retracts. S27: The equipment for unqualified products automatically alarms, and the products cannot be put on the line for the second time. The equipment for products put on the line for the second time automatically alarms when recognized. S28: The data is automatically uploaded to the server for one-to-one correspondence with the batch information.

[0008] S3. Press-fit the first bowl-shaped plug: S31: The line blocking cylinder ejects, causing the in-process tooling to stop at a fixed position on the conveyor. The photoelectric switch senses the in-process tooling, and the in-line barcode scanner scans the traceability code of the workpiece. If it is unqualified, the data of this workpiece is locked, the six-axis robot manipulator does not pick up the part, the blocking cylinder retracts, and the in-process tooling continues to flow on the conveyor to the next station; S32: The six-axis manipulator sequentially picks up the workpieces on the conveyor, places them on the positioning tooling, the clamping cylinder clamps the workpiece, the wedge-shaped cylinder pushes the leveling tooling to support the workpiece, and the manipulator moves away; S33: The electric cylinder descends, and after the first bowl-shaped plug is press-fitted, it rises; S34: The pressure and displacement data are entered into the traceability code to form a pressure-displacement curve, and it is determined whether it is qualified; S35: The six-axis manipulator first grabs the workpiece on the tooling, the clamping cylinder and the wedge-shaped cylinder release the workpiece, and then the six-axis manipulator places the workpiece into the in-line tray. The in-line cylinder retracts, and the workpiece is transported to the next station by the conveyor, and the manipulator stands by to pick up; S36: After the workpiece is taken away, the finger cylinder of the feeding mechanism grabs the first bowl-shaped plug at the outlet of the feeder, sends it under the press head, and the vacuum press head sucks the first bowl-shaped plug and waits for press-fitting, and the finger cylinder retracts; S37: The equipment for unqualified products automatically alarms, and the products cannot be put on the line for the second time. The equipment for products put on the line for the second time automatically alarms when recognized; S38: The data is automatically uploaded to the server and corresponds one by one with the batch information;

[0009] S4. Press-fit the pin bushing: S41: The blocking cylinder ejects, the in-process tooling stops at a fixed position on the conveyor. The photoelectric switch senses the in-process tooling, the photoelectric switch senses the workpiece, the barcode scanner works to scan the code, and it is determined whether the traceability data of the workpiece is locked. If there is unqualified data in the previous station, the manipulator does not pick up the part, the blocking cylinder retracts, and the in-process tooling continues to flow on the conveyor to the next station; S42: When the traceability data of the workpiece is not locked, the manipulator grabs the workpiece on the conveyor and places it on the workpiece positioning tooling at the press-fitting station, the fixture is released, and the manipulator moves away;

[0010] S43: The photoelectric switch inside the equipment detects that the workpiece is placed in place, the press works and reads the press-fitting force values and displacements of 2 pin bushings respectively, and feeds back the force value displacement curve; S44: After the press-fitting is completed, the force value and displacement data are entered into the process code, and it is determined whether the force value, displacement, and force value displacement curve are qualified; S45: When the traceability data of the workpiece is qualified, the manipulator grabs the workpiece on the tooling and puts it back on the conveyor, the blocking cylinder retracts, and the workpiece is transported to the next station by the conveyor; if the traceability data of the workpiece is unqualified, the manipulator grabs the workpiece on the tooling and puts it back on the conveyor, the blocking cylinder retracts, and the workpiece is transported to the next station by the conveyor;

[0011] S51: The blocking cylinder extends, the traveling fixture stops at the fixed position on the conveyor, the photoelectric switch senses the traveling fixture, the photoelectric switch senses the workpiece, the barcode scanner works to scan the code, and it is determined whether the workpiece traceability data is locked. If there is unqualified data in the previous station, the gantry robot does not pick up the workpiece, the blocking cylinder retracts, and the traveling fixture continues to flow on the conveyor to the next station; S52: If the workpiece traceability data is not locked, the gantry robot picks up the workpiece on the conveyor and places it on the positioning fixture at the plug tightening station. The truss fixture loosens and the gantry robot moves away; S53: The photoelectric switch inside the equipment detects that the workpiece is placed in place, the clamping cylinder clamps, and the three-axis servo tightening machine works and reads the tightening torque and angle of 2 plugs respectively; S54: The flipping cylinder works, and the fixture flips 90°. The three-axis servo tightening machine works and reads the tightening torque and angle of 2 plugs respectively; S55: After tightening is completed, the pressing cylinder loosens, the flipping cylinder returns to its original position, and the torque and angle data of 4 plugs are entered into the process code, and it is determined whether the torque and angle are qualified; S56: If the workpiece traceability data is qualified, the gantry robot picks up the workpiece on the fixture and puts it back on the conveyor, the blocking cylinder retracts, and the workpiece is transported to the next station with the conveyor. If the workpiece traceability data is unqualified, the robot picks up the workpiece on the fixture and puts it back on the conveyor, the blocking cylinder retracts, and the workpiece is transported to the next station with the conveyor;

[0012] S6. Press-fit the rotor S61: The line blocking cylinder extends to stop the traveling fixture at the fixed position on the conveyor line. The photoelectric switch senses the traveling fixture, and the on-line barcode scanner scans the traceability code of the workpiece; S62: The three-axis gantry robot picks up the rotor and places it inside the press-fit fixture; S63: The three-axis gantry robot picks up the guide sleeve and places it on the press-fit fixture;

[0013] S64: The three-axis gantry robot picks up the transmission shaft and places it inside the guide sleeve, and the gantry robot moves away; S65: The cylinder pushes the press-fit fixture into the press-fit station; S66: The electric cylinder descends to press-fit the transmission shaft into the rotor and resets after pressing; S67: The pressure and displacement data are entered into the traceability code to form a pressure-displacement curve, and it is determined whether it is qualified;

[0014] S68: The cylinder pulls the press-fit fixture back to its original position; S69: The three-axis gantry robot picks up the guide sleeve and places it inside the placement seat; The three-axis gantry robot picks up the press-fitted rotor assembly and places it on the line tray. The line blocking cylinder retracts, and the workpiece is conveyed to the next station with the conveyor line, and the robot automatically enters the next cycle of press-fitting work.

[0015] S7, assemble pump chamber components and safety valve; S71: Spring force detection: S711: The spring feeder feeds automatically, the photoelectric switch of the spring detection machine senses the adjustment spring, the light curtain is unobstructed, the equipment automatically detects, the spring force value is unqualified, the unqualified material channel cylinder works, and the adjustment spring falls into the unqualified product box. Manual intervention presses reset, the unqualified material channel cylinder returns to its original position, and the next adjustment spring is automatically fed to detect; if the spring force value detection is qualified, the cylinder pushes the tooling to the qualified material channel hole, the qualified material channel cylinder works, and the adjustment spring falls into the qualified product box. The qualified product box is equipped with a photoelectric switch on both sides of the falling channel and the bottom, which can detect the adjustment spring falling from the qualified product channel until it falls to the bottom of the qualified product box. The spring force value and displacement data are uploaded to the traceability system for temporary storage; S72: Adjustment spring press installation: S721: The blocking cylinder is pushed out, the accompanying tooling stops at a fixed position on the conveyor, the photoelectric switch senses the accompanying tooling, and the photoelectric switch senses the workpiece , the barcode scanner scans the workpiece process code to determine whether the workpiece traceability data is locked, and at the same time detects whether the rotor assembly and the solenoid valve are present. If there is unqualified data in the previous station, the workpiece is manually taken and placed in the unqualified product box, the blocking cylinder is retracted, and the accompanying tooling continues to flow on the conveyor belt to the next station; S722: The workpiece traceability data is not locked, the traceability system extracts the force value and displacement data of the two adjustment springs and enters the process code, manually takes the workpiece on the conveyor, places it on the positioning tooling, and manually places the detected adjustment spring to the corresponding position; S723: The photoelectric switch in the equipment detects that the workpiece is in place, the light curtain is not blocked, and the equipment is manually started with both hands, the pressing cylinder is clamped, and the spring cylinder works; S724: The adjustment spring is pushed out in place, and the assembly information is entered into the process code; S725: The workpiece traceability data is qualified, the workpiece is manually placed in the tooling on the conveyor, the conveyor start button is activated with both hands, the blocking cylinder is retracted, and the workpiece is transported to the next station with the conveyor. S726: The workpiece traceability data is unqualified, and the workpiece is manually placed in the unqualified product box.

[0016] S8, pre-installed pump cover S81: The line body blocks the cylinder from pushing out, so that the accompanying tooling stops at a fixed position on the conveyor, the photoelectric switch senses the accompanying tooling, the online barcode scanner scans the traceability code of the workpiece, and at the same time detects the presence of the rotor assembly and the solenoid valve; S82: The automatic feeder feeds the adjusting spring into the spring pressure detection device, automatically detects the elastic force of the adjusting spring and then pushes out the adjusting spring; S83: Manually remove the workpiece on the conveyor line, put it into the tooling, and the tooling cylinder clamps the workpiece; S84: Manually put the retaining ring into the pump cavity, triggering the visual first inspection to see if the pump cavity is missing the retaining ring; S85: Manually install the regulating valve core, regulating spring, rotor assembly, blades, etc.; S86: Trigger the visual second inspection to see if the pump cavity is missing the regulating valve core, regulating spring, rotor assembly, blades, and positioning pins; S87: Manually install the pump cover and pre-install a screw; S88: The tooling cylinder loosens the workpiece, and the workpiece is manually removed and placed in the line body tray;

[0017] S9. Tightening the pump cover S91: The line blocking cylinder extends to stop the accompanying tooling at a fixed position on the conveyor. The photoelectric switch senses the accompanying tooling, and the in-line barcode scanner scans the traceability code of the workpiece. If it is unqualified, the data of this workpiece is locked, the truss manipulator does not pick up the part, the blocking cylinder retracts, and the accompanying tooling continues to flow on the conveyor to the next station. S92: The truss manipulator picks up the workpiece on the conveyor and places it on the screw-tightening tooling. The fixture is released, the tooling cylinder clamps the workpiece, and the manipulator moves away. S93: The three-axis tightening shaft sucks a screw at the outlet of the screw feeder, moves above the specified threaded hole, descends and tightens the screw. S94: Repeat step S93. After tightening 5 screws, the tooling cylinder is released, and the torque and angle data are entered into the traceability code to determine whether it is qualified. S95: The tooling cylinder releases the workpiece. The truss manipulator picks up the workpiece on the tooling and places it in the in-line tray. The in-line cylinder retracts, and the workpiece is transported to the next station by the conveyor. The manipulator waits to pick up.

[0018] S101: The line blocking cylinder extends to stop the accompanying tooling at a fixed position on the conveyor. The photoelectric switch senses the accompanying tooling, and the in-line barcode scanner scans the traceability code of the workpiece. If it is unqualified, the data of this workpiece is locked, the truss manipulator does not pick up the part, the blocking cylinder retracts, and the accompanying tooling continues to flow on the conveyor to the next station. S102: The truss manipulator picks up the workpiece on the conveyor and places it on the inspection tooling. The fixture is released, the tooling cylinder clamps the workpiece, and the manipulator moves away. S103: The pressing cylinder extends to seal the workpiece and supply air. S104: The air supply pressure and swing displacement induction data are entered into the traceability code to determine whether it is qualified. S105: The tooling cylinder releases the workpiece. The truss manipulator picks up the workpiece on the tooling and places it in the in-line tray. The in-line cylinder retracts, and the workpiece is transported to the next station by the conveyor. The manipulator waits to pick up.

[0019] S111: The in-line blocking cylinder extends, stopping the carrier tooling at a fixed position on the conveyor. The photoelectric switch senses the carrier tooling. The in-line barcode scanner scans the traceability code of the workpiece. If it is unqualified, the data of this workpiece is locked, the truss manipulator does not pick up the part, the blocking cylinder retracts, and the carrier tooling continues to move on the conveyor to the next station; S112: The truss manipulator picks up the workpiece on the conveyor and places it on the inspection tooling. The fixture releases, the tooling cylinder clamps the workpiece, and the manipulator moves away; S113: The photoelectric switch inside the equipment senses that the workpiece is placed in place. The cylinder moves left to the performance test working position. The pressing part cylinder presses the part. The rear cylinder drives the motor, torque sensor, and drive head to move forward. The motor starts, and the initial torque at two rotational speeds of the workpiece and the vacuum degree at one rotational speed are respectively detected; S114: After the performance test is completed, the forward moving cylinder retracts to its original position, the pressing part cylinder returns to its original position. The data of the initial torque at two rotational speeds and the vacuum degree at one rotational speed are entered into the process code, and it is determined whether the torque and vacuum degree are qualified; S115: If the workpiece traceability data is qualified, the truss manipulator picks up the workpiece on the tooling and returns it to the conveyor. The blocking cylinder retracts, and the workpiece is transported to the next station by the conveyor;

[0020] S12. Assemble the solenoid valve and tighten the screw, press-fit the oil inlet filter cover + filter; S121: The in-line blocking cylinder extends, stopping the carrier tooling at a fixed position on the conveyor. The photoelectric switch senses the carrier tooling. The in-line barcode scanner scans the traceability code of the workpiece. If it is unqualified, the data of this workpiece is locked, the blocking cylinder retracts, and the carrier tooling continues to move on the conveyor to the next station. At the same time, it is detected whether there is a solenoid valve; S122: Manually pick up the workpiece, assemble the solenoid valve, pre-install the screw, and then place it on the tooling; S123: Manually install the oil inlet filter, manually adsorb the filter cover on the pressing head tooling, press the start button with both hands, the electric cylinder descends, and press-fits the oil inlet filter cover; S124: The pressure and displacement data are entered into the traceability code, forming a pressure-displacement curve, and it is determined whether it is qualified; S125: At the same time, the screw tightening machine tightens the screw and monitors data such as torque. After completion, the screw tightening machine returns to the zero position, the automatic press head rises. The unqualified pump body alarms, prompting the operator to take the part to the unqualified box; S126: If the product at this station is qualified, remind the operator to take the product and place it on the transfer tooling plate; S127: The data is automatically uploaded to the server and corresponds to the batch information one by one.

[0021] Furthermore, it also includes S13, assembly coding and visual inspection; S131: the line body blocks the cylinder and pushes it out, so that the accompanying tooling stops at a fixed position on the conveyor, the photoelectric switch senses the accompanying tooling, and the online scanner scans the traceability code of the workpiece; qualified products are lifted up by the lifting mechanism, if unqualified, the workpiece data is locked, the lifting mechanism does not move, the blocking cylinder is withdrawn, and the accompanying tooling continues to flow to the next station on the conveyor belt; S132: the coding machine codes the qualified products at the upper station, the cylinder pushes out the scanner to scan the assembly code, and the data is uploaded; S133: the lifting mechanism descends and flows to the visual inspection station, and the camera automatically identifies the product sealing ring, solenoid valve and other external parts for leak detection; S134: qualified pump bodies flow to the lower station for offline packaging, and unqualified products alarm the lower station and enter the unqualified conveyor belt position; S135: data is automatically uploaded to the server and corresponds to batch information.

[0022] The beneficial effects of the present invention are as follows: the automobile oil pump and the assembly method have remarkable effects in terms of product quality, production efficiency and cost, equipment adaptability, etc., specifically including: 1) improving product performance, comprehensive detection functions, such as solenoid valves, component leakage prevention and multiple installation, and spring detection, etc., with data tracing, quality problems can be quickly located and handled in time; 2) the pump body and assembly traceability code are bound to the assembly data, quality control and problem investigation are strengthened, traceability requirements are met, and a variety of error prevention measures are taken, such as preventing errors such as secondary online, missing parts, multiple installations, and missing screws, reducing the defective rate and ensuring smooth production; 3) the semi-automatic flexible production line is equipped with multiple special equipment, manipulators and conveyors, which work together according to the program, with a production cycle of 60 seconds / piece, and only 5 assembly personnel are required, which greatly improves production efficiency, reduces labor and time costs, and closely connects each process, reducing material waiting and transportation time. In addition, the production line can be produced on the same line, and the tooling fixtures can be quickly replaced and accurately positioned, which improves the versatility and utilization of equipment and reduces equipment procurement and maintenance costs; it also has the beneficial effects of low failure rate, extended service life and reduced maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a specific implementation mode of the present invention.

[0024] Figure 2 It is a three-dimensional structural schematic diagram of the present invention.

[0025] Figure 3 yes Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0026] Figure 4 It is a structural schematic diagram of the pump cover in the present invention.

[0027] Figure 5 It is a structural schematic diagram of the pump body in the present invention.

[0028] Figure 6 It is a schematic structural diagram of the structure without a pump cover in the present invention.

[0029] Figure 7 is Figure 6 The partial enlarged structural diagram at position B in

[0030] Figure 8 It is a schematic structural diagram of components such as the rotor located inside the swing ring.

[0031] Figure 9 It is a schematic structural diagram of the solenoid valve.

[0032] Figure 10 It is another three-dimensional structural schematic diagram of the present invention.

[0033] Figure 11 It is a sectional structural schematic diagram of the present invention.

[0034] Figure 12 It is a schematic structural diagram of the assembly inspection line for the assembly of the automotive oil pump in the present invention. Detailed implementation manners

[0035] As Figures 1 to 12 shown, an automotive oil pump includes a pump body 1; a pump cover 2, which is arranged on the pump body 1 and is used to seal the pump body 1 to form a complete oil flow space and at the same time provide an external connection interface; a rotor 7, which is arranged inside the pump body 1, the center of which is matched with a transmission shaft 8 and rotates under the drive of the transmission shaft 8, and is matched with a plurality of blades 9 and a swing ring 10 to realize the suction and discharge of oil; each blade 9 is arranged around the rotor 7 in a circle, is arranged in the groove of the rotor 7 and slides in the groove, and rotates with the rotor 7. By fitting with the inner wall of the swing ring 10, the volume between adjacent blades 9 is changed to realize oil pumping; the swing ring 10 is arranged inside the pump body 1 and is located outside the rotor 7, and the inner wall thereof is in contact and cooperation with the blade 9 to change the working volume of the blade 9 and is used to adjust the output flow of the oil pump; the transmission shaft 8 penetrates through the pump body 1 and is connected to a power source and is used to drive the rotor 7 to rotate; a sliding seal 11 is arranged inside the pump body 1 and is used in cooperation with the swing ring 10.

[0036] In the present invention, it further includes a solenoid valve 3, which is arranged on one side of the pump body 1 and is used to control the on-off of the circuit and adjust the working state of the oil pump; a solenoid valve wire plug 6, which is connected to the solenoid valve 3 and is used to realize the connection between the solenoid valve 3 and the outside and transmit control signals. A pilot valve filter screen 101 and a filter screen cover 12 are arranged at the inlet of the oil passage in the pump body 1 and are used to filter the oil entering the oil pump; block impurities and protect other components; the filter screen cover 12 is arranged on the pump body 1, and a filter screen 13 is arranged on the filter screen cover 12, and the filter screen 13 is used to filter the oil. An installation cavity 15 is arranged on the pump body 1, a steel ball 16 and a valve seat 17 are arranged in the installation cavity 15, and a safety valve spring 18 is arranged between the steel ball 16 and the valve seat 17. When the oil pressure is too high, the steel ball compresses the safety valve spring under the action of the oil pressure and opens the pressure relief channel to prevent the system pressure from being too high. The pump body 1 further includes an adjusting spring 19 and an adjusting valve core 20, which are installed in the oil pressure adjusting structure inside the pump body. According to the working conditions of the engine, the adjusting valve core 20 changes its position under the action of the adjusting spring 19 and is used to adjust the pressure and flow rate of the oil. There are two retaining rings 21 inside the swing ring 10, and each retaining ring 21 is located at the upper and lower ends of the rotor 7 respectively. The number of vanes 9 is seven, and each retaining ring 21 is located between each of the vanes 9. An inner groove 23 is formed in the pump body 1, an outer groove 22 is formed in the outer wall of the swing ring 10, and a sliding pin 26 is located between the inner groove 23 and the outer groove 22 and is used to limit the movement track of the swing ring 10. Two positioning pin holes 27 are formed in the pump cover 2, and two positioning pins 28 that cooperate with the positioning pin holes 27 are arranged on the pump body 1 and are used for positioning when the pump body 1 and the pump cover 2 are assembled; a sealing ring installation groove 30 is formed at the oil outlet, and a sealing ring 29 is arranged in the sealing ring installation groove 30 and is installed at the oil outlet of the pump body 1 and is used to seal the oil outlet; prevent oil leakage and ensure the output pressure of the oil pump. A first bowl-shaped plug 103 and a second bowl-shaped plug 105 are press-fitted into the holes of the pump body 1 and are used to block the pump body 1 to prevent oil leakage.

[0037] The assembly method of the automotive oil pump in the present invention includes: S1. Marking the pump body

[0038] S11: Manually pick up the pump body 1 and install it on the coding fixture; Start the coding station with both hands to perform coding; S12: After coding, the cylinder pushes out the barcode scanner to scan the QR code of the pump body 1, and the data is uploaded to the server and corresponds one by one with the batch information; Among them, the batch information is a key data set for managing and tracing the production batches of oil pumps, covering multiple aspects such as production time, production location, production equipment, etc. Specifically, there is production time and shift information: The batch information will record the production time of the oil pump, accurate to the year, month, day, and even the specific shift. By recording the production time, the enterprise can clearly understand the product production situation in different time periods. If product quality problems are found during subsequent inspections or use, the products of the same batch can be quickly located based on the production time, facilitating measures such as recall and improvement. Production location information: Indicates the production location of the oil pump. For large automobile manufacturing enterprises, there may be multiple production bases. Defining the production location helps the enterprise understand the production quality differences in different production areas, analyze the impact of regional factors on product quality, and also facilitates accurately locating the source of problems and implementing targeted quality control when problems occur. Production equipment information: Includes the key equipment number or name used to produce this batch of oil pumps. The performance and accuracy of different equipment may vary. Recording the production equipment information can quickly determine whether it is caused by equipment failure or accuracy problems when product quality problems occur, so as to promptly maintain, adjust, or replace the equipment to ensure the stability of subsequent product quality. Raw material batch information: The production of oil pumps involves various raw materials, such as pump body materials, seal materials, etc. The batch information will be associated with the batch numbers of the raw materials, so that the source and quality inspection situation of the raw materials can be traced. If there are quality defects in a certain batch of raw materials, the batches of oil pumps affected can be quickly determined to prevent unqualified products from entering the market. S13: Pre-assemble four screws 100 and the pilot valve filter 101; S14: The cylinder that pushes out the barcode scanner retracts and waits for manual removal; During the manual picking process, the operator can also conduct a preliminary visual inspection of the pump body to check whether the coding is clear, whether the pre-assembled parts are installed in place, etc. If problems are found, they can be handled in a timely manner to ensure product quality. S15: Install the solenoid valve 3 on the detection fixture, start the detection station with both hands. After the detection is completed, if the detection is qualified, the barcode scanner scans and uploads the qualified information, and the coded pump body 1 and the qualified solenoid valve 3 are placed into the in-line fixture; if the detection is unqualified, an alarm is given, the solenoid valve information is not uploaded, and it is placed into the non-conforming product box; S2: Press-fit the second cup-shaped plug 105 (Ф16 cup-shaped plug), pilot valve filter detection 101;

[0039] S21: The line blocking cylinder extends, stopping the accompanying tooling at a fixed position on the conveyor. The photoelectric switch senses the accompanying tooling, and the in-line barcode scanner scans the traceability code of the workpiece (the workpiece refers to the semi-finished automotive oil pump undergoing the assembly process). If it is unqualified, the data of the workpiece is locked, the six-axis robotic manipulator does not pick up the workpiece, the blocking cylinder retracts, and the accompanying tooling continues to move on the conveyor to the next station; S22: The six-axis manipulator sequentially picks up the workpieces on the conveyor, places them on the positioning tooling, the clamping cylinder clamps the workpiece, the wedge-shaped cylinder pushes the leveling tooling to support the workpiece, and the manipulator moves away; S23: The electric cylinder descends to press-fit the second bowl-shaped plug 105 (the finger cylinder picks it up from the automatic feeder, and the second bowl-shaped plug 105 is pre-adsorbed on the press head). At the same time, the laser sensor detects the presence of the filter screen and rises after pressing; S24: The pressure and displacement data are entered into the traceability code to form a pressure-displacement curve and determine whether it is qualified; (100% online real-time detection of the press force value, displacement, and monitoring of the force-position curve. The press force, displacement, and curve can all be set with control ranges); S25: The six-axis manipulator first grabs the workpiece on the tooling, the clamping cylinder and the wedge-shaped cylinder release the workpiece, and then the six-axis manipulator places the workpiece into the in-line tray. The in-line cylinder retracts, and the workpiece is transported to the next station by the conveyor, and the manipulator stands by to pick up; S26: After the workpiece is taken away, the finger cylinder of the feeding mechanism clamps the Φ16 second bowl-shaped plug 105 at the outlet of the feeder, sends it below the press head, and the vacuum press head sucks the Ф16 second bowl-shaped plug 105 and waits for pressing, and the finger cylinder retracts; S27: The equipment for unqualified products automatically alarms, and the products cannot be put on the line for the second time. The equipment for products put on the line for the second time automatically alarms when recognized; S28: The data is automatically uploaded to the server and corresponds one by one with the batch information;

[0040] S3. Press-fit the first bowl-shaped plug 103 (Ф10 bowl-shaped plug); S31: The line blocking cylinder ejects, causing the in-process fixture to stop at a fixed position on the conveyor. The photoelectric switch senses the in-process fixture, and the in-line barcode scanner scans the traceability code of the workpiece. If it is unqualified, the data of this workpiece is locked, the six-axis robot manipulator does not pick up the part, the blocking cylinder retracts, and the in-process fixture continues to flow on the conveyor to the next station; S32: The six-axis manipulator sequentially picks up the workpieces on the conveyor, places them on the positioning fixture, the clamping cylinder clamps the workpiece, the wedge-shaped cylinder pushes the leveling fixture to support the workpiece, and the manipulator moves away; S33: The electric cylinder descends to press-fit the first bowl-shaped plug 103 (the finger cylinder picks it up from the automatic feeder, and the bowl-shaped plug is adsorbed on the pressure head in advance), and rises after the press-fitting; S34: The pressure and displacement data are entered into the traceability code to form a pressure-displacement curve, and it is determined whether it is qualified; (100% online real-time detection of the press-fitting force value, displacement, and monitoring of the force-position curve. The press-fitting force, displacement, and curve can all be set with a control range); S35: The six-axis manipulator first grabs the workpiece on the fixture, the clamping cylinder and the wedge-shaped cylinder release the workpiece, and then the six-axis manipulator places the workpiece into the in-line tray. The in-line cylinder retracts, and the workpiece is transported to the next station by the conveyor, and the manipulator stands by to pick up; S36: After the workpiece is taken away, the finger cylinder of the feeding mechanism clamps the first bowl-shaped plug 103 at the outlet of the feeder, sends it under the press head, and the vacuum press head sucks the Ф10 first bowl-shaped plug 103 and waits for press-fitting, and the finger cylinder retracts; S37: The equipment automatically alarms for unqualified products, and the products cannot be put back online. The equipment automatically alarms when the products are put back online for the second time; S38: The data is automatically uploaded to the server and corresponds to the batch information one by one;

[0041] S4. Press-fit the pin bushing 500; S41: The blocking cylinder ejects, the in-process fixture stops at a fixed position on the conveyor. The photoelectric switch senses the in-process fixture, the photoelectric switch senses the workpiece, the barcode scanner works to scan the code, and it is determined whether the traceability data of the workpiece is locked. If there is unqualified data in the previous station, the manipulator does not pick up the part, the blocking cylinder retracts, and the in-process fixture continues to flow on the conveyor to the next station; S42: When the traceability data of the workpiece is not locked, the manipulator grabs the workpiece on the conveyor and places it on the workpiece positioning fixture at the press-fitting station. The fixture is released and the manipulator moves away; S43: The photoelectric switch inside the equipment detects that the workpiece is placed in place, the press works and reads the press-fitting force values and displacements of 2 pin bushings 500 respectively, and feeds back the force value-displacement curve; S44: After the press-fitting is completed, the force value and displacement data are entered into the process code, and it is determined whether the force value, displacement, and force value-displacement curve are qualified; S45: If the traceability data of the workpiece is qualified, the manipulator grabs the workpiece on the fixture and puts it back on the conveyor. The blocking cylinder retracts, and the workpiece is transported to the next station by the conveyor; if the traceability data of the workpiece is unqualified, the manipulator grabs the workpiece on the fixture and puts it back on the conveyor. The blocking cylinder retracts, and the workpiece is transported to the next station by the conveyor; at the same time, if the workpiece is unqualified, the alarm can also be cancelled through manual intervention;

[0042] S5, M6 screw plug assembly; S51: The blocking cylinder is pushed out, the accompanying tooling stops at a fixed position on the conveyor, the photoelectric switch senses the accompanying tooling, the photoelectric switch senses the workpiece, the barcode scanner works to scan the code, and determines whether the workpiece traceability data is locked. If there is unqualified data in the previous station, the truss manipulator does not grab the workpiece, the blocking cylinder returns, and the accompanying tooling continues to flow on the conveyor belt to the next station; S52: The workpiece traceability data is not locked, the truss manipulator grabs the workpiece on the conveyor, places it on the positioning tooling at the screw plug tightening station, the truss fixture is released, and the truss manipulator moves away; S53: The photoelectric switch in the equipment detects that the workpiece is in place, the clamping cylinder is clamped, the three-axis servo tightening machine works and reads 2 screw plugs respectively The tightening torque and angle of the tooling are determined by the following methods: S54: the flip cylinder works, the tooling is flipped 90°, the three-axis servo tightening machine works and reads the tightening torque and angle of the two screw plugs respectively; S55: the tightening is completed, the pressing cylinder is released, the flip cylinder returns to its original position, and the torque and angle data of the four screw plugs are entered into the process code to determine whether the torque and angle are qualified; S56: if the workpiece traceability data is qualified, the truss manipulator grabs the workpiece on the tooling, puts it back on the conveyor, retracts the blocking cylinder, and the workpiece is transported to the next station with the conveyor; if the workpiece traceability data is unqualified, the manipulator grabs the workpiece on the tooling, puts it back on the conveyor, retracts the blocking cylinder, and the workpiece is transported to the next station with the conveyor; if the workpiece is unqualified, the alarm can be released through manual intervention;

[0043] S6, press-fit rotor 7 (inner rotor); S61: The line body blocks the cylinder from pushing out, so that the accompanying tooling stops at a fixed position on the conveyor line, the photoelectric switch senses the accompanying tooling, and the online barcode scanner scans the traceability code of the workpiece; S62: The three-axis truss manipulator grabs the rotor and places it in the press-fit tooling (the rotor is in the swing plate, and the array position is grabbed); S63: The three-axis truss manipulator grabs the guide sleeve and places it on the press-fit tooling (the guide sleeve is in the guide sleeve placement seat, and the fixed position is grabbed); S64: The three-axis truss manipulator grabs the transmission shaft and puts it into the guide sleeve, and the truss manipulator moves away (the transmission shaft is in the swing plate, Array position grab); S65: The cylinder pushes the press-fitting tooling into the press-fitting station; S66: The electric cylinder descends, presses the transmission shaft into the rotor, and resets after pressing; S67: The pressure and displacement data are entered into the traceability code to form a pressure-displacement curve, and determine whether it is qualified; S68: The cylinder pulls the press-fitting tooling back to its original position; S69: The three-axis truss manipulator grabs the guide sleeve into the placement seat; The three-axis truss manipulator grabs the pressed rotor assembly and puts it into the line body tray, the line body blocks the cylinder to retract, and the workpiece is transported to the next station along the conveyor line, and the manipulator automatically enters the next cycle of pressing work.

[0044] S7. Assemble the pump chamber assembly and the safety valve; S71: Spring force value detection (1 spring detection press on each side of the equipment): S711: The spring feeder automatically feeds the spring. When the photoelectric switch of the spring detection machine senses the adjusting spring 19 and there is no obstruction in the light curtain, the equipment automatically detects. If the spring force value is unqualified, the cylinder of the unqualified chute works, and the adjusting spring 19 falls into the unqualified product box. Manually intervene to press the reset button, and the cylinder of the unqualified chute returns to its original position, and then automatically feeds and detects the next adjusting spring 19. If the spring force value detection is qualified, the cylinder pushes the tooling out to the qualified chute hole, and the cylinder of the qualified chute works, and the adjusting spring 19 falls into the qualified product box. The qualified product box is equipped with opposed photoelectric switches on both sides of the falling channel and the bottom, which can detect the adjusting spring 19 falling from the qualified chute to the bottom of the qualified product box, and the spring force value and displacement data are uploaded to the traceability system for temporary storage; S72: Press-fit the adjusting spring: S721: The blocking cylinder ejects, and the traveling tooling stops at a fixed position on the conveyor. When the photoelectric switch senses the traveling tooling and the workpiece, the barcode scanner works to scan the process code of the workpiece, determine whether the traceability data of the workpiece is locked, and at the same time detect the presence of the rotor assembly and the solenoid valve. If there is unqualified data at the previous station, manually pick up the workpiece and put it into the unqualified product box, the blocking cylinder retracts, and the traveling tooling continues to flow on the conveyor to the next station; S722: When the traceability data of the workpiece is not locked, the traceability system extracts the force value and displacement data of 2 adjusting springs 19 and enters them into the process code. Manually pick up the workpiece on the conveyor and place it on the positioning tooling, and manually place the detected adjusting spring 19 in the corresponding position; S723: When the photoelectric switch inside the equipment detects that the workpiece is placed in place and there is no obstruction in the light curtain, manually start the equipment with both hands, the pressing cylinder clamps, and the spring ejecting cylinder works; S724: The adjusting spring 19 is ejected in place, and the assembly information is entered into the process code; S725: When the traceability data of the workpiece is qualified, manually put the workpiece into the tooling on the conveyor, start the conveyor start button with both hands, the blocking cylinder retracts, and the workpiece is transported to the next station by the conveyor. S726: When the traceability data of the workpiece is unqualified, manually put the workpiece into the unqualified product box.

[0045] S8, Pre-assembled pump cover 2, end face clearance detection, identification of missing parts; S81: The line body blocking cylinder ejects to stop the accompanying tooling at a fixed position on the conveyor. The photoelectric switch senses the accompanying tooling, and the on-line barcode scanner scans the traceability code of the workpiece. At the same time, it detects whether there are rotor components and solenoid valves (if the barcode scanning is unqualified, manually put it into the non-conforming product box); S82: The automatic feeder sends the adjusting spring 19 into the spring pressure detection device, automatically detects the elastic force of the adjusting spring 19 and then ejects the adjusting spring 19; S83: Manually remove the workpiece on the conveyor line and put it into the tooling, and the tooling cylinder clamps the workpiece; S84: Manually put the retaining ring into the pump cavity, and trigger the vision to detect for the first time whether the pump cavity is missing the retaining ring; S85: Manually install the regulating valve core, adjusting spring 19, rotor assembly, vane (after manually removing the vane, the vane automatic feeder pushes the vane into the material box); S86: Trigger the vision to detect for the second time whether the pump cavity is missing the regulating valve core, adjusting spring 19, rotor assembly, vane, positioning pin; S87: Manually install the pump cover 2 and pre-assemble one screw; S88: The tooling cylinder releases the workpiece, and the operator removes the workpiece and puts it into the line tray;

[0046] S9, Tighten the pump cover; S91: The line body blocking cylinder ejects to stop the accompanying tooling at a fixed position on the conveyor. The photoelectric switch senses the accompanying tooling, and the on-line barcode scanner scans the traceability code of the workpiece; if it is unqualified, lock the data of this workpiece, the truss manipulator does not grab the part, the blocking cylinder retracts, and the accompanying tooling continues to flow on the conveyor belt to the next station; S92: The truss manipulator grabs the workpiece on the conveyor and places it on the screw-tightening tooling. The fixture is released, the tooling cylinder clamps the workpiece, and the manipulator moves away; S93: The three-axis tightening shaft sucks (magnetically) the screw at the outlet of the screw feeder, moves above the specified threaded hole, descends and tightens the screw; S94: Repeat step S93. After tightening 5 screws, the tooling cylinder is released, and the torque and angle data are entered into the traceability code to determine whether it is qualified; S95: The tooling cylinder releases the workpiece, the truss manipulator grabs the workpiece on the tooling and places it in the line tray, the line cylinder retracts, and the workpiece is transported to the next station by the conveyor, and the manipulator stands by to grab;

[0047] S10, pilot valve starting pressure, swing ring swing detection; S101: the line body blocking cylinder pushes out, so that the accompanying tooling stops at a fixed position on the conveyor, the photoelectric switch senses the accompanying tooling, the online barcode scanner scans the traceability code of the workpiece; if it is unqualified, the workpiece data is locked, the truss manipulator does not grab the workpiece, the blocking cylinder retreats, and the accompanying tooling continues to flow on the conveyor belt to the next station; S102: the truss manipulator grabs the workpiece on the conveyor and places it on the inspection tooling, the clamp is released, the tooling cylinder clamps the workpiece, and the manipulator moves away; S103: the clamping cylinder is pushed out, the workpiece is sealed and ventilated; S104: the ventilation pressure and swing displacement sensing data are entered into the traceability code to determine whether it is qualified; S105: the tooling cylinder releases the workpiece, the truss manipulator grabs the workpiece on the tooling and puts it in the line body tray, the line body cylinder retracts, the workpiece is transported to the next station with the conveyor, and the manipulator waits for grabbing;

[0048] S11, assembly torque and vacuum degree detection; S111: The line body blocks the cylinder from pushing out, causing the accompanying tooling to stop at a fixed position on the conveyor, the photoelectric switch senses the accompanying tooling, and the online barcode scanner scans the traceability code of the workpiece; if it is unqualified, the workpiece data is locked, the truss robot does not grab the workpiece, the blocking cylinder is withdrawn, and the accompanying tooling continues to flow on the conveyor belt to the next station; S112: The truss robot grabs the workpiece on the conveyor and places it on the inspection tooling, the fixture is released, the tooling cylinder clamps the workpiece, and the robot moves away; S113: The photoelectric switch in the equipment detects that the workpiece is in place, and the cylinder moves left to the performance test workstation Position, the pressing cylinder presses the workpiece, the rear cylinder drives the motor, torque sensor and drive head forward, the motor starts, and the initial torque of the workpiece at two speeds and the vacuum at one speed are detected respectively; S114: After the performance test is completed, the forward cylinder returns to its original position, the pressing cylinder returns to its original position, the initial torque at two speeds and the vacuum at one speed are entered into the process code to determine whether the torque and vacuum are qualified; S115: The workpiece traceability data is qualified, the truss manipulator grabs the workpiece on the tooling, puts it back on the conveyor, the blocking cylinder retracts, and the workpiece is transported to the next station along the conveyor; (whether the workpiece data is unqualified, whether manual intervention will be required to release the alarm, the plan is to be determined)

[0049] S12. Assemble the solenoid valve, tighten the screws, press-fit the oil inlet filter cover + filter; S121: The line blocking cylinder extends to stop the traveling fixture at a fixed position on the conveyor. The photoelectric switch senses the traveling fixture, and the on-line barcode scanner scans the traceability code of the workpiece. If it is unqualified, the data of the workpiece is locked, the blocking cylinder retracts, and the traveling fixture continues to flow on the conveyor to the next station. At the same time, check whether the solenoid valve exists; S122: Manually pick up the workpiece, assemble the solenoid valve, pre-install the screws, and then place it on the fixture; S123: Manually install the oil inlet filter, manually adsorb the filter cover on the press head fixture, press the start button with both hands, the electric cylinder descends, and press-fit the oil inlet filter cover; S124: Enter the pressure and displacement data into the traceability code to form a pressure-displacement curve, and determine whether it is qualified; (100% on-line real-time detection of the press-fit force value, displacement, and monitoring of the force-position curve. The press-fit force, displacement, and curve can all set the control range); S125: At the same time, the screw tightening machine tightens the screws and monitors data such as torque. After completion, the screw tightening machine returns to the zero position, the automatic press head rises, the unqualified pump body alarms, and prompts the operator to pick up the part to the unqualified box; S126: If the product at this station is qualified, remind the operator to pick up the product and place it on the transfer fixture plate; S127: The data is automatically uploaded to the server and corresponds to the batch information one by one.

[0050] It also includes S13. Assemble the assembly code and visual inspection; S131: The line blocking cylinder extends to stop the traveling fixture at a fixed position on the conveyor. The photoelectric switch senses the traveling fixture, and the on-line barcode scanner scans the traceability code of the workpiece; The qualified product is lifted by the lifting mechanism. If it is unqualified, the data of the workpiece is locked, the lifting mechanism does not move, the blocking cylinder retracts, and the traveling fixture continues to flow on the conveyor to the next station; S132: The coding machine prints the assembly code on the qualified product of the previous station, the cylinder pushes out the barcode scanner to scan the assembly code, and the data is uploaded; S133: The lifting mechanism descends and transfers to the visual inspection station. The camera automatically identifies external parts such as the product seal ring and solenoid valve for leak detection; S134: The qualified pump body transfers to the next station and is offline for packaging, and the unqualified product alarms and enters the unqualified conveyor belt position at the next station; S135: The data is automatically uploaded to the server and corresponds to the batch information one by one.

[0051] The present invention also includes 1.2 equipment operating environment requirements:

[0052] Equipment ambient temperature: 0~45℃ without freezing. Ambient relative humidity: below 90% without condensation. Power supply requirements: Three-phase 380V±10% 50HZ. Supply air source: 0.45MPa~0.7MPa stable oil-free and water-free clean compressed air. Ground wire requirements: Equipped with a weak current ground wire. Equipment assembly site: The ground is flat, covering an area of 11*7 meters. (The equipment needs to enter the elevator, with a height limit <1.9m, width limit <1.8m, and length limit <2.1m); 200. Double-speed chain conveyor; 300. Packing area

[0053] The present invention is used for the assembly and inspection of the G4J15 oil pump. It consists of 13 integrated special equipment, 2 six-axis manipulators, 6 gantry manipulators, a speed chain conveyor, and a flat belt offline conveyor, meeting the requirements of assembly and inspection after QR code scanning for this project. The standard configuration includes 4 operating personnel + 1 offline packaging personnel. The oil pump and its parts are positioned on the equipment manually; the employees and the equipment complete the work of taking out, moving, and positioning and installing the components according to the technological process and the set program; after the oil pump completes the processes such as assembly and inspection according to the product process requirements, it is manually packaged and stored in the warehouse. This production line is a semi-automatic flexible production line. After starting the equipment, the equipment completes the actions according to the set program. The production beat for the workpiece to go offline is 60 seconds per piece. Party A adds precise positioning holes to the product, and subsequent positioning is based on the precise positioning holes.

[0054] 1.3 The list of main components is shown in Table 1

[0055]

[0056] Table 1 The anti-mistake list of the G4J15 oil pump assembly line is shown in Table 2

[0057]

[0058]

[0059]

[0060]

[0061] Table 2

[0062] I. Basic functions of the product:

[0063] 1. The product pump body and assembly traceability code (QR code or other forms) is engraved, and all assembly data is bound on the assembly line and traceable after the product is taken offline. 2. Detection, judgment, and traceability of the opening and closing of the product solenoid valve. 3. Interference press-fitting of the product rotor with the shaft, locating pin sleeve, Φ10 second bowl-shaped plug, Φ16 first bowl-shaped plug, oil passage filter screen, and oil suction port filter screen cover, and real-time detection, judgment, and traceability of pressure and displacement (value / curve) during the press-fitting process. 4. Detection, judgment, and traceability of the end face clearance values between the end face of the product pump body pump cavity and the swing ring, rotor, and vane. 5. Detection, judgment, and traceability of anti-leakage, overloading, and the state where part or all of the sealing ring is not properly installed in the sealing groove for the product oil passage filter screen, bowl-shaped plug, pin sleeve, rotor, shaft, swing ring, vane, retaining ring, spring, steel ball, sealing ring, pin, solenoid valve, screw, etc. 6. Real-time detection, judgment, and traceability of the three types of springs of the product. 7. Quantitative oil injection within the product pump cavity range. 8. Tightening of the product screw plug, solenoid valve screw, and pump cover screw, and real-time detection, judgment, and traceability of the torque value and angle value during the tightening process. 9. Real-time detection, judgment, and traceability of the opening pressure of the product pilot valve. 10. Real-time detection, judgment, and traceability of the swing of the product swing ring in place. 11. Real-time detection, judgment, and traceability of the starting torque (rotation speed, torque value) of the product assembly. 12. Real-time detection, judgment, and traceability of the vacuum degree (rotation speed, vacuum degree value) of the product assembly. 13. Automatic offline placement of the product.

[0064] II. Product anti-mistake requirements:

[0065] 1. Anti-mistake for the product's second online operation, that is, the product QR code cannot be used for repeated online actions. 2. Anti-mistake for missing or overloading of product parts. 3. Anti-mistake for the state where part or all of the product sealing ring is not properly installed in the sealing groove. 4. Anti-mistake for missing tightening of single or multiple product screws. 5. Anti-mistake for missing or skipping assembly procedures for the product.

[0066] III. Requirements for the number of production personnel and production rhythm of the product:

[0067] Assembly personnel: 5 people (including assembly, offline, inspection, and packaging); Assembly rhythm: 60 seconds per piece (qualified for offline).

[0068] IV. Interchangeability requirements:

[0069] The assembly line should at least be prepared for the co-line function with at least 1 other similar product. The tooling fixtures for product positioning, placement, grasping, transfer, etc. within the line should all have quick-change functions and accurate positioning.

[0070] V. Other requirements

[0071] 1. The product shall not have abnormalities such as internal jamming and abnormal wear due to assembly line reasons; 2. The product shall not have abnormalities such as appearance bumps, scratches, dents, and color changes due to assembly line reasons; 3. The product shall not have abnormal cleanliness due to assembly line reasons; 4. The product shall not have abnormalities such as difficult or impossible traceability of each assembly data due to assembly line reasons.

Claims

1. An automotive oil pump, characterized in that: It includes a pump body (1); A pump cover (2) is arranged on the pump body (1) to close the pump body (1) and form a complete engine oil flow space, and at the same time provide an external connection interface; A rotor (7) is arranged in the pump body (1), the center of which is matched with a transmission shaft (8) and rotates driven by the transmission shaft (8), and cooperates with a plurality of blades (9) and a swing ring (10) to realize the suction and discharge of engine oil; Each blade (9) is arranged around the rotor (7) in a circle, is arranged in a groove of the rotor (7) and slides in the groove, and rotates with the rotor (7). By fitting with the inner wall of the swing ring (10), the volume between adjacent blades (9) is changed to realize the pumping of engine oil; The swing ring (10) is arranged in the pump body (1) and is located outside the rotor (7). The inner wall is in contact and cooperation with the blade (9) to change the working volume of the blade (9) and is used to adjust the output flow of the oil pump; The transmission shaft (8) penetrates the pump body (1) and is connected to a power source and is used to drive the rotor (7) to rotate; A sliding seal (11) is arranged in the pump body (1) and is used in cooperation with the swing ring (10).

2. The automotive oil pump according to claim 1, characterized in that: It further includes a solenoid valve (3) arranged on one side of the pump body (1) to control the on-off of the circuit and adjust the working state of the oil pump; A solenoid valve wire plug (6) is connected to the solenoid valve (3) to realize the connection between the solenoid valve (3) and the outside and transmit control signals.

3. The automotive oil pump according to claim 2, characterized in that: It further includes a pilot valve filter screen (101) and a filter screen cover (12) arranged at the inlet of the oil passage in the pump body (1) to filter the engine oil entering the oil pump; the filter screen cover (12) is arranged on the pump body (1), and a filter screen (13) is arranged on the filter screen cover (12), and the filter screen (13) is used to filter the engine oil.

4. The automotive oil pump according to claim 3, wherein: An installation cavity (15) is arranged on the pump body (1), a steel ball (16) and a valve seat (17) are arranged in the installation cavity (15), and a safety valve spring (18) is arranged between the steel ball (16) and the valve seat (17).

5. The automotive oil pump according to claim 4, characterized in that: The pump body (1) further includes an adjusting spring (19) and an adjusting valve core (20). The adjusting valve core (20) changes its position under the action of the adjusting spring (19) to adjust the pressure and flow of the engine oil.

6. The automotive oil pump according to claim 5, characterized in that: There are two retaining rings (21) in the swing ring (10). Each retaining ring (21) is respectively located at the upper and lower ends of the rotor (7), and the number of the blades (9) is seven. Each retaining ring (21) is located between each blade (9).

7. The automotive oil pump according to claim 6, characterized in that: An inner groove (23) is formed in the pump body (1), an outer groove (22) is formed in the outer wall of the swing ring (10), and a sliding pin (26) is located between the inner groove (23) and the outer groove (22) to limit the movement track of the swing ring (10).

8. The automotive oil pump according to claim 1, characterized in that: Two positioning pin holes (27) are provided on the pump cover (2), and two positioning pins (28) that cooperate with the positioning pin holes (27) are provided on the pump body (1) for positioning during the assembly of the pump body (1) and the pump cover (2); A sealing ring installation groove (30) is provided at the oil outlet, and a sealing ring (29) is arranged in the sealing ring installation groove (30) and installed at the oil outlet of the pump body (1) to seal the oil outlet; The first bowl-shaped plug (103) and the second bowl-shaped plug (105) are press-fitted into the holes of the pump body (1) to block the pump body (1) to prevent oil leakage.

9. The assembly method of the automotive oil pump according to claim 8, characterized in that, Including: S1. Pump body marking S11: Manually pick up the pump body (1) and install it on the coding fixture; Start the coding station with both hands to perform coding; S12: After coding, scan the QR code of the pump body (1), and upload the data to the server to correspond to the batch information one by one; S13: Pre-install four screws (100) and the pilot valve filter (101); S14: The cylinder of the barcode scanner retracts and waits for manual removal; S15: Install the solenoid valve (3) on the detection fixture, start the detection station with both hands, and after the detection is completed, if the detection is qualified, the barcode scanner scans and uploads the qualified information, and put the coded pump body (1) and the qualified solenoid valve (3) into the line fixture; If the detection is unqualified, an alarm is given, the solenoid valve information is not uploaded, and it is put into the non-conforming product box; S2. Press-fit the second bowl-shaped plug (105) and detect the pilot valve filter (101) S21: The line blocking cylinder ejects, so that the accompanying fixture stops at a fixed position on the conveyor. The photoelectric switch senses the accompanying fixture, and the on-line barcode scanner scans the traceability code of the workpiece. If it is unqualified, the data of the workpiece is locked, the six-axis robot manipulator does not grasp the workpiece, the blocking cylinder retracts, and the accompanying fixture continues to flow on the conveyor to the next station; S22: The six-axis manipulator sequentially grabs the workpieces on the conveyor, places them on the positioning fixture, the clamping cylinder clamps the workpiece, the wedge-shaped cylinder pushes the leveling fixture to support the workpiece, and the manipulator moves away; S23: The electric cylinder descends to press-fit the second bowl-shaped plug (105), and at the same time the laser sensor detects the presence of the filter, and rises after pressing; S24: Enter the pressure and displacement data into the traceability code to form a pressure-displacement curve and determine whether it is qualified; S25: The six-axis manipulator first grabs the workpiece on the fixture, the clamping cylinder and the wedge-shaped cylinder release the workpiece, and then the six-axis manipulator places the workpiece into the line tray. The line cylinder retracts, and the workpiece is transported to the next station by the conveyor, and the manipulator waits to grab; S26: After the workpiece is taken away, the finger cylinder of the feeding mechanism grabs the second bowl-shaped plug (105) at the outlet of the feeder, sends it under the press head, and the vacuum press head sucks the second bowl-shaped plug (105) and waits for press-fitting, and the finger cylinder retracts; S27: The equipment for unqualified products automatically alarms, and the products cannot be put on the line for the second time. The equipment for products put on the line for the second time automatically alarms when recognized; S28: The data is automatically uploaded to the server to correspond to the batch information one by one; S3. Press-fit the first bowl-shaped plug (103) S31: The in-line blocking cylinder extends, stopping the carrier fixture at a fixed position on the conveyor. The photoelectric switch senses the carrier fixture, and the in-line barcode scanner scans the traceability code of the workpiece. If it is unqualified, the data of this workpiece is locked, the six-axis robotic manipulator does not pick up the workpiece, the blocking cylinder retracts, and the carrier fixture continues to move on the conveyor to the next station; S32: The six-axis manipulator sequentially picks up the workpieces on the conveyor, places them on the positioning fixture, the clamping cylinder clamps the workpiece, the wedge-shaped cylinder pushes the leveling fixture to support the workpiece, and the manipulator moves away; S33: The electric cylinder descends, presses the first bowl-shaped plug (103), and then ascends after pressing; S34: The pressure and displacement data are entered into the traceability code, forming a pressure-displacement curve, and it is determined whether it is qualified; S35: The six-axis manipulator first grabs the workpiece on the fixture, the clamping cylinder and the wedge-shaped cylinder release the workpiece, and then the six-axis manipulator places the workpiece into the in-line tray. The in-line cylinder retracts, and the workpiece is transported to the next station by the conveyor, and the manipulator stands by to pick up; S36: After the workpiece is taken away, the finger cylinder of the loading mechanism clamps the first bowl-shaped plug (103) at the outlet of the feeder, sends it under the press head, the vacuum press head sucks the first bowl-shaped plug (103), waits for pressing, and the finger cylinder retracts; S37: The equipment for unqualified products automatically alarms, and the products cannot be put on the line for the second time. The equipment for products put on the line for the second time automatically alarms when recognized; S38: The data is automatically uploaded to the server and corresponds one by one with the batch information; S4. Press the pin sleeve (500) S41: The blocking cylinder extends, stopping the carrier fixture at a fixed position on the conveyor. The photoelectric switch senses the carrier fixture, the photoelectric switch senses the workpiece, the barcode scanner works to scan the code, and it is determined whether the traceability data of the workpiece is locked. If there is unqualified data in the previous station, the manipulator does not pick up the workpiece, the blocking cylinder retracts, and the carrier fixture continues to move on the conveyor to the next station; S42: If the traceability data of the workpiece is not locked, the manipulator picks up the workpiece on the conveyor and places it on the workpiece positioning fixture at the pressing station. The fixture is released and the manipulator moves away; S43: The photoelectric switch inside the equipment detects that the workpiece is placed in place, the press works and reads the pressing force values and displacements of the 2 pin sleeves (500) respectively, and feeds back the force value-displacement curve; S44: After pressing is completed, the force value and displacement data are entered into the process code, and it is determined whether the force value, displacement, and force value-displacement curve are qualified; S45: If the traceability data of the workpiece is qualified, the manipulator picks up the workpiece on the fixture and puts it back on the conveyor. The blocking cylinder retracts, and the workpiece is transported to the next station by the conveyor. If the traceability data of the workpiece is unqualified, the manipulator picks up the workpiece on the fixture and puts it back on the conveyor. The blocking cylinder retracts, and the workpiece is transported to the next station by the conveyor; S51: The blocking cylinder extends, stopping the carrier fixture at a fixed position on the conveyor. The photoelectric switch senses the carrier fixture, the photoelectric switch senses the workpiece, the barcode scanner works to scan the code, and it is determined whether the traceability data of the workpiece is locked. If there is unqualified data in the previous station, the gantry manipulator does not pick up the workpiece, the blocking cylinder retracts, and the carrier fixture continues to move on the conveyor to the next station; S52: The workpiece traceability data is not locked, the truss manipulator grabs the workpiece on the conveyor and places it on the positioning fixture of the screw plug tightening station, the truss fixture is released, and the truss manipulator moves away; S53: The photoelectric switch in the equipment detects that the workpiece is in place, the clamping cylinder clamps, the three-axis servo tightening machine works and reads the tightening torque and angle of the two screw plugs respectively; S54: The flip cylinder works, the tooling flips 90°, the three-axis servo tightening machine works and reads the tightening torque and angle of the two screw plugs respectively; S55: After tightening is completed, the pressing cylinder is loosened, the cylinder is turned back to its original position, and the torque and angle data of the four screw plugs are entered into the process code to determine whether the torque and angle are qualified; S56: If the workpiece traceability data is qualified, the truss manipulator grabs the workpiece on the tooling, puts it back on the conveyor, retracts the blocking cylinder, and the workpiece is transported to the next station along the conveyor. If the workpiece traceability data is unqualified, the manipulator grabs the workpiece on the tooling, puts it back on the conveyor, retracts the blocking cylinder, and the workpiece is transported to the next station along the conveyor; S6, press-fit rotor (7) S61: The line body blocks the cylinder from pushing out, so that the accompanying tooling stops at a fixed position on the conveyor line, the photoelectric switch senses the accompanying tooling, and the online barcode scanner scans the traceability code of the workpiece; S62: The three-axis truss manipulator grabs the rotor and places it in the press tooling; S63: The three-axis truss manipulator grabs the guide sleeve and places it on the press tooling; S64: The three-axis truss manipulator grabs the transmission shaft and puts it into the guide sleeve, and the truss manipulator moves away; S65: The cylinder pushes the press fitting into the press fitting station; S66: The electric cylinder descends, presses the transmission shaft into the rotor, and resets after press-fitting; S67: Enter the pressure and displacement data into the traceability code to form a pressure-displacement curve and determine whether it is qualified; S68: The cylinder pulls the press fitting back to its original position; S69: The three-axis truss robot grabs the guide sleeve and puts it into the placement seat; the three-axis truss robot grabs the pressed rotor assembly and puts it into the line body tray, the line body blocking cylinder retracts, the workpiece is transferred to the next station along the conveyor line, and the robot automatically enters the next cycle pressing work. S7. Assemble pump chamber components and safety valve S71: Spring force detection: S711: The spring feeder feeds automatically, the photoelectric switch of the spring detection machine senses the adjustment spring (19), the light curtain is unobstructed, the equipment automatically detects, the spring force value is unqualified, the unqualified material channel cylinder works, and the adjustment spring (19) falls into the unqualified product box. Manual intervention presses reset, the unqualified material channel cylinder returns to its original position, and the next adjustment spring (19) is automatically fed and tested; if the spring force value is qualified, the cylinder pushes the tooling to the qualified material channel hole, the qualified material channel cylinder works, and the adjustment spring (19) falls into the qualified material box. The qualified material box is equipped with a photoelectric switch on both sides of the drop channel and the bottom, which can detect the adjustment spring (19) falling from the qualified material channel until it falls to the bottom of the qualified material box. The spring force value and displacement data are uploaded to the traceability system for temporary storage; S72: Adjustment spring press: S721: The blocking cylinder ejects, the accompanying tooling stops at the fixed position of the conveyor, the photoelectric switch senses the accompanying tooling, the photoelectric switch senses the workpiece, the barcode scanner works to scan the process code of the workpiece, determines whether the traceability data of the workpiece is locked, and at the same time detects the presence of the rotor assembly and the solenoid valve. If there is unqualified data at the previous station, the operator takes the part and puts it into the non-conforming product box, the blocking cylinder retracts, and the accompanying tooling continues to flow on the conveyor to the next station; S722: The traceability data of the workpiece is not locked. The traceability system extracts the force value and displacement data of 2 adjusting springs (19) and enters them into the process code. The operator takes the workpiece on the conveyor and places it on the positioning tooling, and the operator places the detected adjusting springs (19) in the corresponding positions; S723: The photoelectric switch inside the equipment detects that the workpiece is placed in place and the light curtain is unobstructed. The operator starts the equipment with both hands, the pressing part cylinder clamps, and the spring ejecting cylinder works; S724: The adjusting spring (19) ejects in place, and the assembly information is entered into the process code; S725: The traceability data of the workpiece is qualified. The operator puts the workpiece into the tooling on the conveyor, starts the conveyor start button with both hands, the blocking cylinder retracts, and the workpiece is transported to the next station by the conveyor. S726: The traceability data of the workpiece is unqualified. The operator puts the workpiece into the non-conforming product box. S8. Pre-assemble the pump cover (2) S81: The line blocking cylinder ejects, making the accompanying tooling stop at the fixed position of the conveyor. The photoelectric switch senses the accompanying tooling, and the on-line barcode scanner scans the traceability code of the workpiece, and at the same time detects the presence of the rotor assembly and the solenoid valve; S82: The automatic feeder sends the adjusting spring (19) into the spring pressure detection device, automatically detects the elastic force of the adjusting spring (19) and then ejects the adjusting spring (19); S83: The operator removes the workpiece on the conveyor and puts it into the tooling, and the tooling cylinder clamps the workpiece; S84: The operator puts the retaining ring into the pump cavity, triggering the vision to detect for the first time whether the retaining ring is missing in the pump cavity; S85: The operator installs the regulating valve core, adjusting spring (19), rotor assembly, vane; S86: Trigger the vision to detect for the second time whether the regulating valve core, adjusting spring (19), rotor assembly, vane, and positioning pin are missing in the pump cavity; S87: The operator installs the pump cover (2) and pre-installs one screw; S88: The tooling cylinder releases the workpiece, and the operator removes the workpiece and puts it into the line tray; S9. Tighten the pump cover S91: The line blocking cylinder ejects, making the accompanying tooling stop at the fixed position of the conveyor. The photoelectric switch senses the accompanying tooling, and the on-line barcode scanner scans the traceability code of the workpiece; if it is unqualified, the data of the workpiece is locked, the truss manipulator does not grab the part, the blocking cylinder retracts, and the accompanying tooling continues to flow on the conveyor to the next station; S92: The truss manipulator grabs the workpiece on the conveyor, places it on the screw tightening tooling, the fixture releases, the tooling cylinder clamps the workpiece, and the manipulator moves away; S93: The three-axis tightening shaft sucks the screw at the screw feeder outlet, moves above the specified threaded hole, descends and tightens the screw; S94: Repeat step S93. After tightening 5 screws, the tooling cylinder releases, and the torque and angle data are entered into the traceability code to determine whether it is qualified; S95: The tooling cylinder releases the workpiece, and the truss manipulator grabs the workpiece on the tooling and places it into the in-line tray. The in-line cylinder retracts, and the workpiece is transported to the next station by the conveyor. The manipulator stands by to grab. S101: The in-line blocking cylinder extends to stop the accompanying tooling at a fixed position on the conveyor. The photoelectric switch senses the accompanying tooling. The in-line barcode scanner scans the traceability code of the workpiece. If it is unqualified, the data of this workpiece is locked, the truss manipulator does not grab the workpiece, the blocking cylinder retracts, and the accompanying tooling continues to flow on the conveyor to the next station. S102: The truss manipulator grabs the workpiece on the conveyor and places it on the inspection tooling. The fixture releases, the tooling cylinder clamps the workpiece, and the manipulator moves away. S103: The pressing cylinder extends to seal the workpiece and supply air. S104: The air supply pressure and swing displacement induction data are entered into the traceability code, and it is determined whether it is qualified. S105: The tooling cylinder releases the workpiece, and the truss manipulator grabs the workpiece on the tooling and places it into the in-line tray. The in-line cylinder retracts, and the workpiece is transported to the next station by the conveyor. The manipulator stands by to grab. S111: The in-line blocking cylinder extends to stop the accompanying tooling at a fixed position on the conveyor. The photoelectric switch senses the accompanying tooling. The in-line barcode scanner scans the traceability code of the workpiece. If it is unqualified, the data of this workpiece is locked, the truss manipulator does not grab the workpiece, the blocking cylinder retracts, and the accompanying tooling continues to flow on the conveyor to the next station. S112: The truss manipulator grabs the workpiece on the conveyor and places it on the inspection tooling. The fixture releases, the tooling cylinder clamps the workpiece, and the manipulator moves away. S113: The photoelectric switch inside the equipment detects that the workpiece is placed in place. The cylinder moves left to the performance test working position. The pressing cylinder presses the workpiece. The rear cylinder drives the motor, torque sensor, and drive head to move forward. The motor starts, and the initial torque at two rotational speeds of the workpiece and the vacuum degree at one rotational speed are detected respectively. S114: After the performance test is completed, the forward cylinder retracts to the original position, and the pressing cylinder returns to the original position. The initial torque at two rotational speeds and the vacuum degree data at one rotational speed are entered into the process code, and it is determined whether the torque and vacuum degree are qualified. S115: If the workpiece traceability data is qualified, the truss manipulator grabs the workpiece on the tooling, puts it back on the conveyor, the blocking cylinder retracts, and the workpiece is transported to the next station by the conveyor. S12. Assemble the solenoid valve, screw in the screw, press-fit the oil inlet filter cover + filter S121: The in-line blocking cylinder extends to stop the accompanying tooling at a fixed position on the conveyor. The photoelectric switch senses the accompanying tooling. The in-line barcode scanner scans the traceability code of the workpiece. If it is unqualified, the data of this workpiece is locked, the blocking cylinder retracts, and the accompanying tooling continues to flow on the conveyor to the next station. At the same time, it is detected whether there is a solenoid valve. S122: Manually pick up the workpiece, assemble the solenoid valve, pre-install the screw, and then place it on the tooling. S123: Manually install the oil inlet filter, manually adsorb the filter cover on the pressing head tooling, press the start button with both hands, and the electric cylinder descends to press-fit the oil inlet filter cover. S124: The pressure and displacement data are entered into the traceability code to form a pressure-displacement curve, and it is determined whether it is qualified. S125: At the same time, the screw tightening machine tightens the screws and monitors the torque and other data. After completion, the screw tightening machine returns to zero position, the pressure head of the automatic press rises, and an alarm is sounded for unqualified pump bodies, prompting manual pickup to the unqualified box; S126: The product of this station is qualified, and the worker is reminded to take the product and place it on the flow tooling board; S127: The data is automatically uploaded to the server and corresponds to the batch information one by one.

10. An assembling method of an automotive oil pump as described in claim 9, characterized in that, Also includes S13, assembly coding and visual inspection S131: The line body blocks the cylinder from pushing out, causing the accompanying tooling to stop at a fixed position on the conveyor. The photoelectric switch senses the accompanying tooling, and the online barcode scanner scans the traceability code of the workpiece. Qualified products are lifted up by the lifting mechanism. If they are unqualified, the data of the workpiece is locked, the lifting mechanism does not move, the blocking cylinder is retracted, and the accompanying tooling continues to flow on the conveyor belt to the next station. S132: The coding machine codes the qualified products at the upper station, the cylinder pushes out the barcode scanner to scan the assembly code, and the data is uploaded; S133: The lifting mechanism descends and flows to the visual inspection station, where the camera automatically identifies the product's sealing ring, solenoid valve and other external parts for leak detection; S134: Qualified pump bodies flow to the next station for packaging, and unqualified products are sent to the unqualified conveyor belt position after an alarm is issued; S135: The data is automatically uploaded to the server and corresponds to the batch information one by one.

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