An assembly apparatus for a canned pump

Abstract

The application provides an assembling device for a canned motor pump, and belongs to the technical field of pump assembling devices. The device solves the problems of low assembling efficiency and poor quality in the prior art. The assembling device for the canned motor pump comprises a rack, a locating seat one, a thrust washer pressing head capable of assembling a thrust washer to a rotor when the rotor is placed on the locating seat one, a locating seat two, a first mechanical hand, a second mechanical hand, and an impeller pressing device for assembling an impeller to the rotor. The first mechanical hand can grab the rotor and place the rotor on the locating seat one, and can also grab the rotor with the assembled thrust washer on the locating seat one and place the rotor on the locating seat two. The first mechanical hand is also provided with an end cover clamping paw capable of grabbing the end cover, moving to the upper side of the locating seat two, and assembling the end cover to the rotor. The application improves the assembling efficiency of the canned motor pump and ensures the quality of the assembly.

Description

Technical Field

[0001] This invention belongs to the technical field of pump assembly equipment, and relates to an assembly equipment for a canned pump. Background Technology

[0002] A canned motor pump is a leak-free pump that integrates a canned motor and a pump. Its stator and rotor are isolated by non-magnetic, corrosion-resistant thin-walled sleeves, and the rotor is supported by front and rear bearings and immersed in the conveying medium. Therefore, no dynamic seals of any kind are required to prevent the conveyed medium from leaking outward.

[0003] The structure of the canned motor pump is as disclosed in the patent document for a single-phase pipeline canned electric pump (application number: 200810033367.8), including a pump body and a canned motor. The canned motor includes a stator, rotor, shaft, impeller, upper bearing housing, lower bearing housing, upper bearing, lower bearing, and a shielding sleeve. The stator and rotor are separated and shielded by the shielding sleeve. The shielding sleeve and the lower bearing housing are fitted with a stop joint, and a lower sealing gasket is provided in the middle to prevent water from entering the stator and protect the stator.

[0004] Canned motor pumps involve numerous components and require high assembly precision, making assembly quite challenging. Currently, the assembly process is primarily manual, with auxiliary equipment used only for specific steps. For example, when pressing the rotor into the housing, the required pressing force is difficult to achieve manually, necessitating the use of press-fitting equipment. Even with auxiliary equipment, which reduces assembly difficulty to some extent, the existing method still suffers from low automation. This results in wasted manpower, low assembly efficiency, and inconsistent assembly quality due to varying worker skill levels. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing an assembly device for canned motor pumps, which improves the assembly efficiency of canned motor pumps while ensuring assembly quality.

[0006] The objective of this invention can be achieved through the following technical solution: An assembly device for a canned motor pump, comprising a frame, characterized in that the frame is provided with a positioning seat 1 and a thrust washer pressing head that can assemble a thrust washer onto the rotor when a rotor is placed on the positioning seat 1. The assembly device further comprises a positioning seat 2, a first robotic arm, a second robotic arm, and an impeller pressing device for assembling an impeller onto the rotor. The first robotic arm can grasp the rotor and place it on the positioning seat 1, and can also grasp the rotor with the thrust washer assembled on the positioning seat 1 onto the positioning seat 2. The first robotic arm also has an end cover gripping claw that can grasp an end cover, move it above the positioning seat 2, and assemble the end cover onto the rotor. The second robotic arm can grasp the rotor with the end cover assembled on the positioning seat 2 into the impeller pressing device, and the second robotic arm also has an impeller gripping claw that can grasp the impeller and place it into the impeller pressing device.

[0007] During assembly, the first robotic arm first grabs the rotor and places it on positioning seat one. Positioning seat one can position the rotor. Then, the thrust washer pressing head puts the thrust washer on the rotor shaft. Then, the first robotic arm grabs the rotor with the thrust washer assembled on positioning seat one and puts it on positioning seat two. After that, the first robotic arm grabs the end cover and puts the end cover on the rotor shaft. After placing the end cover, it returns to its original position to start the next work cycle.

[0008] While the first robotic arm is working, the second robotic arm will first grab an impeller, then move to the top of the second positioning seat, grab the rotor with the end cover assembled on the second positioning seat, and grab it together with the impeller into the impeller pressing device. The impeller is then fitted onto the rotor shaft by the impeller pressing device, thus assembling the impeller and the rotor.

[0009] Clearly, in this assembly equipment, both the first and second robotic arms can complete multiple assembly actions. Through their coordinated and synchronized operation, not only is the assembly of multiple components of the canned motor pump automated, but assembly efficiency is also significantly improved. Furthermore, by specifically designing a thrust washer pressing head and an impeller pressing device to handle the pressing processes of the thrust washer and impeller, the quality of the pressing process is ensured, thereby guaranteeing the overall assembly quality of the canned motor pump. Moreover, the first and second robotic arms can work synchronously during the pressing process, allowing the equipment to complete more assembly actions per unit time, further enhancing assembly efficiency.

[0010] In the aforementioned assembly equipment for the canned pump, the second robotic arm also has a pressure sleeve. The second robotic arm can drive the pressure sleeve to move above the positioning seat 2 and press down the end cover above the positioning seat 2 so that the end cover is installed on the rotor.

[0011] There is a certain preload between the end cover and the rotor shaft, so a certain downward pressure is required to press it into place. At this time, by setting a pressure sleeve on the second robot arm, the second robot arm has three functions: gripping the impeller, gripping the rotor, and pressing the end cover. After the second robot arm moves above the positioning seat, the pressure sleeve can be used to press the end cover into place first, and then the rotor with the end cover assembled can be immediately gripped and placed into the impeller pressing device. This process can be completed quickly by adjusting the movement of the second robot arm. The operation time is short, which can improve the assembly efficiency of the equipment. At the same time, since the end cover is installed on the rotor, the assembly quality of the canned pump can be guaranteed.

[0012] In the aforementioned assembly equipment for the shielded pump, the frame is equipped with a thrust washer conveying track and a feeding cylinder. The piston rod of the feeding cylinder is horizontally arranged and a feeding plate is connected to the piston rod. The feeding plate is connected to the outlet end of the thrust washer conveying track, and the feeding cylinder can also drive the feeding plate to move directly below the thrust washer pressing head. The thrust washer pressing head can grab the thrust washer on the feeding plate and move downward to fit the thrust washer onto the rotor shaft.

[0013] The thrust washer conveying track continuously feeds thrust washers forward. When the feeding plate is empty, the track delivers the thrust washers to the feeding plate. Then, the piston rod of the feeding cylinder extends, moving the feeding plate directly below the thrust washer pressing head. The pressing head then grabs the thrust washers from the feeding plate and moves downwards to place them onto the rotor shaft. Simultaneously, the feeding cylinder retracts the feeding plate, and the conveying track replenishes the thrust washers onto the feeding plate again. This cycle repeats, achieving automatic feeding of thrust washers and improving the automation level and assembly efficiency of the equipment.

[0014] In the aforementioned assembly equipment for the canned pump, the assembly equipment for this canned pump also includes a third robotic arm, a discharge conveyor belt, and a feed conveyor track. The first robotic arm, the second robotic arm, and the third robotic arm are all equipped with rotor clamping claws. The third robotic arm can drive its rotor clamping claws to move between the impeller pressing device and the discharge conveyor belt. The feed conveyor track has several shielding sleeve positioning stations that can position the shielding sleeves.

[0015] Inside the impeller pressing device, after the impeller and rotor are assembled, the rotor gripper of the third robot can grip the assembled rotor and transfer it to the discharge conveyor belt. The discharge conveyor belt moves it out to the shielding sleeve assembly station, where it is assembled into the shielding sleeve manually or by the shielding sleeve assembly equipment. After assembly, it is placed on the shielding sleeve positioning station of the feeding conveyor track and transported to a position that can be grasped by the third robot.

[0016] In the aforementioned assembly equipment for the canned motor pump, the assembly equipment for this canned motor pump further includes a housing assembly conveying track, a housing positioning seat, and a fourth robotic arm. The housing assembly conveying track is used to convey the housing assembly formed by assembling the stator and the housing together. The fourth robotic arm can grab the housing assembly on the housing assembly conveying track and place it onto the housing positioning seat. The third robotic arm has a shielding sleeve clamping claw, and the third robotic arm can drive the shielding sleeve clamping claw to move between the feeding conveying track and the housing positioning seat.

[0017] The fourth robotic arm first grabs the housing assembly from the housing assembly conveyor track and then places it on the housing positioning seat. At the same time, the third robotic arm uses the shielded sleeve gripper to grab the component that is conveyed back from the feed conveyor track. This component is the assembly of the shielded sleeve, rotor, thrust washer and impeller. Then it moves to the housing positioning seat and presses the component into the housing assembly, completing the entire assembly process of this shielded pump assembly equipment.

[0018] Similarly, in this assembly equipment, the third and fourth robotic arms can also complete multiple assembly actions. Through the coordinated and synchronous work of the third and fourth robotic arms, not only is the automated assembly of multiple components of the canned pump achieved, but the assembly efficiency is also greatly improved.

[0019] In the aforementioned assembly equipment for the shielded pump, the fourth robotic arm has a rubber ring clamping claw. The rubber ring clamping claw has two symmetrical arc-shaped clamping plates that can approach or move away from each other. The concave surfaces of the two arc-shaped clamping plates face each other, and each arc-shaped clamping plate has a protruding support flange on its lower convex surface. When the two arc-shaped clamping plates approach each other, the rubber ring clamping claw can pass through the inner hole of the rubber ring. When the two arc-shaped clamping plates move away from each other, the support flanges at the lower ends of the two arc-shaped clamping plates can simultaneously support the rubber ring.

[0020] In the aforementioned assembly equipment for the shielded pump, the fourth robotic arm can drive the rubber ring clamping claw to extend into the stator of the housing assembly and, through the two arc-shaped clamping plates moving closer together, cause the rubber ring to fall into the rubber ring positioning groove at the bottom of the housing. After the rubber ring is released from the rubber ring clamping claw, the two arc-shaped clamping plates of the rubber ring clamping claw can also move away from each other so that the supporting flanges at the lower ends of the two arc-shaped clamping plates simultaneously support the bottom of the housing.

[0021] After the two arc-shaped clamping plates of the rubber ring clamping claw come together, they can penetrate into the inner hole of the rubber ring. Then, the two arc-shaped clamping plates open a certain distance, so that the supporting flanges at the lower end of each arc-shaped clamping plate simultaneously support the rubber ring, thereby clamping the rubber ring. Then, the rubber ring clamping claw moves above the housing assembly conveying track, so that the two clamping claws extend into the housing assembly. After that, the two arc-shaped clamping plates slightly come together to place the rubber ring in the rubber ring groove at the bottom of the housing. Finally, the two arc-shaped clamping plates open again, at which point the supporting flanges at the lower end of the two arc-shaped clamping plates can support the bottom of the housing, thus gripping the housing assembly.

[0022] Clearly, by adopting this structure, the rubber ring gripper not only enables the gripping and assembly of rubber rings, but also the picking and placing of housing components. Therefore, the rubber ring gripper achieves dual functionality. Moreover, when switching from the function of gripping and assembling rubber rings to the function of picking and placing housing components, the switch can be quickly achieved simply by controlling the opening and closing of the arc-shaped gripping plate. This not only makes the assembly efficiency high, but also ensures the quality of the assembly.

[0023] In the aforementioned assembly equipment for the shielded pump, the positioning seat one includes a main body, which has a horizontally arranged support plane for placing the rotor. The main body also has an arc-shaped limiting part that protrudes upward relative to the support plane. The frame also has an oil spraying component one that can spray oil toward the rotor when the rotor is placed on the support plane. The support plane has vertically arranged oil spraying holes. The positioning seat one is also connected to an oil spraying component two that can spray oil into the oil spraying holes.

[0024] This design allows the assembly equipment of this canned motor pump to also perform oil spray lubrication on the rotor. Oil spray component one is typically an oil nozzle, and oil spray component two is an oil spray connector, which is connected to the oil pump via a hose. During the assembly process, after the rotor is placed on the positioning seat one, the lower end of the shaft extends into the oil spray hole, and the lower end face of the rotor body abuts against the supporting plane. Then, oil spray component one sprays oil onto the rotor shaft for the first time. Afterward, the thrust washer pressing head clamps the thrust washer and moves it downward, fitting the thrust washer onto the rotor shaft, completing the thrust washer installation. After installation, the thrust washer pressing head moves upward to reset. Then, oil spray component one performs a second oil spray, while oil spray component two can simultaneously spray oil into the oil spray hole to lubricate the shaft.

[0025] Of course, in the above steps, the number of times the first and second oil sprayers are sprayed, as well as when the second oil sprayer is sprayed, can be flexibly adjusted.

[0026] While assembling the thrust washer and rotor manually is time-consuming and labor-intensive, the manual assembly process allows for easy rotation of the rotor for lubrication, thus ensuring effective lubrication. However, with the automated assembly in this device, ensuring proper lubrication of the shaft becomes more challenging. To address this, the assembly device incorporates vertical oil spray holes on the main body, along with a second oil sprayer capable of spraying oil into these holes. During the process of the first robotic arm clamping the rotor onto the positioning seat, when the lower end of the shaft moves to the upper opening of the oil spray hole but before the shaft fully penetrates it, a ring-shaped gap forms between the lower end of the shaft and the edge of the upper opening. At this point, the second oil sprayer can also spray oil into the hole. The oil atomizes as it passes through the gap, resulting in a smooth flow of lubricant between the lower end of the rotor body and the support. Oil mist forms between the planes, but due to the presence of the limiting part, it effectively blocks the oil mist, preventing it from easily dissipating outside the positioning seat. Instead, it effectively lubricates the lower end face of the rotor, improving the lubrication effect on the rotor. Furthermore, after this process, some oil adheres to the limiting part, flowing downwards to the supporting plane, maintaining a layer of oil on the supporting plane. This ensures good lubrication when the rotor body's end face contacts the supporting plane, further enhancing the rotor's lubrication effect. Once the rotor is placed on the supporting plane, the limiting part further restricts its movement, and the lower end of the shaft extends into the oil injection hole, thus also restricting the shaft. This design allows the rotor to be stably and accurately positioned on the supporting plane, ensuring the assembly accuracy and quality of the rotor and thrust washer.

[0027] Therefore, in this assembly device, the limiting part on the main body plays three roles: limiting, blocking oil mist, and allowing the oil to flow downward to the support plane. Through this design, the rotor and thrust washer can achieve automated assembly and improve assembly efficiency, while also ensuring assembly accuracy and greatly improving the lubrication effect on the rotor, so that the finally assembled canned pump has good working stability.

[0028] In the aforementioned canned motor pump assembly equipment, the discharge conveyor belt one is arranged parallel to the feed conveyor track below. This canned motor pump assembly equipment also includes a second discharge conveyor belt, which is arranged parallel to the housing assembly conveyor track below. This design saves equipment space, and the assembled product is ultimately output from the second discharge conveyor belt.

[0029] In the aforementioned assembly equipment for the canned pump, the assembly equipment for this canned pump further includes a rotor conveying track and a rubber ring conveying track. The first robotic arm picks up the rotor from the rotor conveying track, and the rubber ring gripper of the fourth robotic arm picks up the rubber ring from the rubber ring conveying track.

[0030] The rotor conveyor track is used to realize the automatic feeding of the rotor, and the rubber ring conveyor track is used to realize the automatic feeding of the rubber ring. This enables the assembly equipment to have a higher degree of automation, thereby improving the assembly efficiency.

[0031] Compared with existing technologies, the assembly equipment for this canned motor pump has the following advantages:

[0032] 1. In this assembly equipment, the first, second, third and fourth robotic arms can each complete multiple assembly actions. Through the coordinated and synchronous work of each robotic arm, not only is the automated assembly of multiple components of the canned pump achieved, but the assembly efficiency is also greatly improved.

[0033] 2. In this assembly device, the limiting part of the positioning seat one plays three roles: limiting, blocking oil mist, and allowing the oil to flow downward to the support plane. Through this design, the rotor and thrust washer can achieve automated assembly and improve assembly efficiency, while also ensuring assembly accuracy and greatly improving the lubrication effect on the rotor, so that the finally assembled canned pump has good working stability. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of the canned pump assembled by this assembly equipment.

[0035] Figure 2 This is a cross-sectional view of the canned pump assembled in this assembly equipment.

[0036] Figure 3 This is a top view of the assembled canned pump equipment.

[0037] Figure 4 This is a part of the canned motor pump assembly equipment. Figure 1 .

[0038] Figure 5 This is a structural diagram of the frame section in this canned motor pump assembly equipment.

[0039] Figure 6 yes Figure 5 Enlarged view of point A in the middle.

[0040] Figure 7 This is a cross-sectional view of the rotor after it has been placed on the positioning seat.

[0041] Figure 8 This is a cross-sectional view of the process of placing the rotor on the positioning seat.

[0042] Figure 9 This is a schematic diagram of the impeller pressing device.

[0043] Figure 10 This is a part of the canned motor pump assembly equipment. Figure 2 .

[0044] Figure 11 yes Figure 10 Enlarged view of point A in the middle.

[0045] Figure 12 This is a partial view of the first robotic arm.

[0046] Figure 13 This is a partial view of the second robotic arm.

[0047] Figure 14 This is a partial view of the third robotic arm.

[0048] Figure 15 This is a partial view of the fourth robotic arm.

[0049] Figure 16 This is a schematic diagram of the structure of the rubber ring clamping claw.

[0050] Figure 17 This is a cross-sectional view of the rubber ring clamping claws clamping the rotor body after the rubber ring is assembled inside the rotor body.

[0051] In the diagram, 1. Frame; 2. Positioning seat one; 2a. Main body; 2b. Support plane; 2c. Limiting part; 2d. Oil injection hole; 3. Thrust washer pressing head; 3a. Arc-shaped clamp; 4. Positioning seat two; 5. First robot arm; 6. Second robot arm; 7. Impeller pressing device; 71. Support seat; 72. Impeller positioning seat; 73. Press head; 8. End cover clamping claw; 9. Impeller clamping claw; 10. Pressing sleeve; 11. Thrust washer conveying track; 12. Feeding cylinder; 13. Feeding plate; 14. Third robot arm; 15. Discharge conveyor belt one; 16. Feeding conveyor track; 161. Shielding sleeve positioning station; 17. Rotor clamping claw; 17a. Rotor clamp Head; 17b, Stepped surface; 18, Shell assembly conveyor track; 19, Shell positioning seat; 20, Fourth robotic arm; 21, Shell assembly; 211, Rubber ring positioning groove; 22, Shielding sleeve clamping claw; 23, Rubber ring clamping claw; 231, Arc-shaped clamping plate; 232, Support flange; 24, Oil spraying part one; 25, Oil spraying part two; 26, Rotor conveyor track; 27, Rubber ring conveyor track; 28, Shell; 29, Stator; 30, Rotor; 301, Rotor body; 302, Rotating shaft; 31, Thrust washer; 32, End cover; 33, Impeller; 34, Rubber ring; 35, Shell clamping claw; 36, Gap; 37, Shielding sleeve; 38, Discharge conveyor belt two. Detailed Implementation

[0052] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0053] The assembly equipment for this canned motor pump is used to assemble, for example... Figure 1 and Figure 2 The canned motor pump shown includes a casing 28, a stator 29, a rotor 30, a thrust washer 31, an end cover 32, a shielding sleeve 37, an impeller 33, and a rubber ring 34. The rotor 30 includes a rotor body 301 and a shaft 302. Of course, in actual manufacturing, after the plate assembly equipment is completed, components such as inlet and outlet pipes need to be assembled for the canned motor pump to function properly.

[0054] like Figure 3 and Figure 4 The assembly equipment for this shielded pump includes a frame 1, on which a positioning seat 2 and a thrust washer press-fitting head 3 are provided, which can assemble the thrust washer 31 onto the rotor 30 when the rotor 30 is placed on the positioning seat 2. The assembly equipment also includes a positioning seat 4, a first robotic arm 5, a second robotic arm 6, and an impeller press-fitting device 7 for mounting the impeller 33 onto the shaft 302 of the rotor 30. The first robotic arm 5 can grasp the rotor 30 and place the rotor 30 onto the positioning seat 2, and can also press the positioning seat 31 onto the rotor 30. The rotor 30, with the thrust washer 31 assembled on the first seat 2, is gripped onto the second positioning seat 4. The first robotic arm 5 also has an end cover gripping claw 8 capable of gripping the end cover 32, moving it above the second positioning seat 4, and fitting the end cover 32 onto the rotor shaft 302 of the rotor 30. The second robotic arm 6 can grip the rotor 30 with the end cover 32 assembled on the second positioning seat 4 into the impeller pressing device 7. The second robotic arm 6 also has an impeller gripping claw 9 capable of gripping the impeller 33 and placing the impeller 33 into the impeller pressing device 7. Figure 13 As shown, the second robotic arm 6 also has a pressing sleeve 10. The second robotic arm 6 can drive the pressing sleeve 10 to move above the positioning seat 4 and press down the end cover 32 above the positioning seat 4 so that the end cover 32 is installed on the rotor 30.

[0055] like Figure 5 As shown, the frame 1 is provided with a thrust washer conveying track 11 and a horizontally arranged feeding cylinder 12. The piston rod of the feeding cylinder 12 is horizontally arranged and a feeding plate 13 is connected to the piston rod. The feeding plate 13 is connected to the outlet end of the thrust washer conveying track 11. The feeding cylinder 12 can also drive the feeding plate 13 to move directly below the thrust washer pressing head 3. The thrust washer pressing head 3 can grab the thrust washer 31 on the feeding plate 13 and move downward to put the thrust washer 31 onto the rotating shaft 302 of the rotor 30.

[0056] like Figure 6 and Figure 7As shown, the positioning seat 2 includes a main body 2a, which has a horizontally arranged support plane 2b for placing the rotor 30. The main body 2a also has an arc-shaped limiting part 2c that protrudes upward relative to the support plane 2b. The frame 1 is also provided with an oil spraying element 24 that sprays oil towards the rotor 30 when it is placed on the support plane 2b. The support plane 2b has a vertically arranged oil spraying hole 2d. The positioning seat 2 is also connected to an oil spraying element 25 that sprays oil into the oil spraying hole 2d. This design allows the assembly equipment of this shielded pump to also perform oil spraying lubrication on the rotor 30. The oil spraying element 24 is typically an oil nozzle, and the oil spraying element 25 is an oil spraying connector, which is connected to the oil pump via a hose.

[0057] In the specific assembly process, after the rotor 30 is placed on the positioning seat 2, the lower end of the shaft 302 extends into the oil injection hole 2d, and the lower end face of the rotor body 301 abuts against the support plane 2b. Then, the first oil sprayer 24 sprays oil towards the shaft 302 of the rotor 30 for the first time. After that, the thrust washer press-fit head 3 clamps the thrust washer 31 and moves it downward to put the thrust washer 31 onto the shaft 302 of the rotor 30, completing the installation of the thrust washer 31. After installation, the thrust washer press-fit head 3 moves upward to reset. Then, the first oil sprayer 24 sprays oil for the second time, and at the same time, the second oil sprayer 25 can spray oil into the oil injection hole 2d to lubricate the shaft 302.

[0058] Of course, in the above steps, the number of times oil is sprayed by oil spray component 24 and oil spray component 25, as well as when oil spray component 25 sprays oil, can be flexibly adjusted.

[0059] In this assembly device, by providing a vertical oil spray hole 2d on the main body 2a, and simultaneously providing an oil spraying component 25 capable of spraying oil into the oil spray hole 2d, during the process of the first robotic arm 5 clamping the rotor 30 and placing it onto the positioning seat 2, such as... Figure 8As shown, when the lower end of the rotating shaft 302 moves to the upper opening of the oil injection hole 2d but before the rotating shaft 302 extends into the oil injection hole 2d, an annular gap 36 is formed between the lower end of the rotating shaft 302 and the edge of the upper opening of the oil injection hole 2d. At this time, the second oil injection component 25 can also spray oil into the oil injection hole 2d. When the oil passes through the gap 36, it will produce an atomization effect, thus forming an oil mist between the lower end of the rotor body 301 and the supporting plane 2b. Due to the presence of the limiting part 2c, the limiting part 2c can form a blockage. The oil mist effect prevents it from easily dissipating outside the positioning seat 2, instead providing excellent lubrication to the lower end face of the rotor 30, thus improving the lubrication effect on the rotor 30. Furthermore, after this process, some oil adheres to the limiting part 2c, which flows downwards to the supporting plane 2b, maintaining a layer of oil on the supporting plane 2b. This ensures excellent lubrication when the end face of the rotor body 301 contacts the supporting plane 2b, further enhancing the lubrication effect of the rotor 30. Once the rotor 30 is placed on the supporting plane 2b, as... Figure 7 As shown, the limiting part 2c can also limit the rotor 30. At the same time, the lower end of the rotating shaft 302 extends into the oil injection hole 2d, so the oil injection hole 2d also limits the rotating shaft 302. This design allows the rotor 30 to be stably and accurately positioned on the support plane 2b, thereby ensuring the assembly accuracy and assembly quality of the rotor 30 and the thrust washer 31.

[0060] like Figure 9 As shown, the impeller pressing device 7 includes a support base 71 that can horizontally support the rotor 30. One side of the support base 71 is provided with an impeller positioning seat 72 that can position the impeller 33 and is concentrically arranged with the rotor 30. The second manipulator 6 can grasp the impeller 33 onto the impeller positioning seat 72. The other side of the support base 71 is provided with a pressing head 73. Both the support base 71 and the pressing head 73 can slide horizontally. After the support base 71 and the pressing head 73 move toward the positioning side of the impeller 33, the impeller 33 can be pressed onto the rotating shaft 302 of the rotor 30 by the pressure of the pressing head 73.

[0061] like Figure 3 and Figure 10 As shown, the assembly equipment for this shielded pump also includes a third robotic arm 14, a discharge conveyor belt 15, and a feed conveyor track 16. The first robotic arm 5, the second robotic arm 6, and the third robotic arm 14 all have rotor gripping claws 17. The third robotic arm 14 can drive its rotor gripping claws 17 to move between the impeller pressing device 7 and the discharge conveyor belt 15. Figure 11 As shown, the feeding conveying track 16 has several shielding sleeve positioning stations 161 that can position the shielding sleeve 37.

[0062] like Figure 10As shown, the assembly equipment for this shielded pump also includes a housing assembly conveying track 18, a housing positioning seat 19, and a fourth robotic arm 20. The housing assembly conveying track 18 is used to convey the housing assembly 21 formed by assembling the stator 29 and the housing 28 together. The fourth robotic arm 20 can grab the housing assembly 21 on the housing assembly conveying track 18 and place it onto the housing positioning seat 19. The third robotic arm 14 has a shielding sleeve clamping claw 22, and the third robotic arm 14 can drive the shielding sleeve clamping claw 22 to move between the feeding conveying track 16 and the housing positioning seat 19.

[0063] Furthermore, such as Figure 4 and Figure 10 As shown, the discharge conveyor belt 15 is arranged parallel to the bottom of the feed conveyor track 16. The assembly equipment of this shielded pump also includes a rotor conveyor track 26, a rubber ring conveyor track 27, and a discharge conveyor belt 38. The first robotic arm 5 grabs the rotor 30 from the rotor conveyor track 26, and the rubber ring gripper 23 of the fourth robotic arm 20 grabs the rubber ring 34 from the rubber ring conveyor track 27. The discharge conveyor belt 38 is arranged parallel to the bottom of the housing assembly conveyor track 18.

[0064] like Figure 12 As shown, the first robotic arm 5 has a rotor gripper 17 and an end cap gripper 8, as... Figure 13 As shown, the second robotic arm 6 has a rotor gripper 17, an impeller gripper 9, and a pressing sleeve 10, as... Figure 14 The third robotic arm 14 shown has a shielded gripper 22 and a rotor gripper 17, as shown. Figure 15 As shown, the fourth robotic arm 20 has a rubber ring gripper 23 and a housing gripper 35.

[0065] like Figure 16 and Figure 17 As shown, the rubber ring clamping claw 23 has two symmetrical arc-shaped clamping plates 231 that can approach or move away from each other. The concave surfaces of the two arc-shaped clamping plates 231 face each other, and each arc-shaped clamping plate 231 has a protruding support flange 232 on the outer convex surface at the lower end. When the two arc-shaped clamping plates 231 approach each other, the rubber ring clamping claw 23 can pass through the inner hole of the rubber ring 34. When the two arc-shaped clamping plates 231 move away from each other, the support flange 232 at the lower end of the two arc-shaped clamping plates 231 can simultaneously support the rubber ring 34.

[0066] like Figure 5As shown, the thrust washer pressing head 3 includes two symmetrically arranged arc-shaped clamping pieces 3a. The two arc-shaped clamping pieces 3a can open or close to each other, and when they close, they can horizontally clamp the thrust washer 31. At the same time, the frame 1 is also provided with a drive source for driving the thrust washer pressing head 3 to move up and down. When the thrust washer pressing head 3 moves downward, it can put the thrust washer 31 onto the rotating shaft 302 of the rotor 30. After the thrust washer 31 is installed, the thrust washer pressing head 3 moves upward to reset.

[0067] like Figure 12 As shown, the rotor clamping jaws 17 include two vertically aligned rotor chucks 17a. The two rotor chucks 17a can be opened or closed vertically. Both rotor chucks 17a have arc-shaped notches and stepped surfaces 17b, as shown. Figure 13 As shown, when the two rotor chucks 17a come together, the stepped surfaces 17b on the two rotor chucks 17a can respectively abut against the two end faces of the rotor 30, while the rotor 30 is located in the arc-shaped notch, thus clamping the rotor 30. When the two rotor chucks 17a open, the rotor 30 can be released. Of course, the rotor clamping claws 17 are not limited to this structure; they can also be other claw structures capable of clamping cylindrical structures.

[0068] like Figure 12 , Figure 13 , Figure 14 and Figure 15 As shown, the end cap clamping claw 8, impeller clamping claw 9, shielding sleeve clamping claw 22 and housing clamping claw 35 have similar clamping methods. They all include two clamping parts that can open or close to each other. When the two clamping parts close to each other, the clamping function can be realized.

[0069] The working principle of this assembly equipment is described below:

[0070] ①: The first robotic arm 5 picks up the rotor 30 and places it on the positioning seat 1 2. Then, the thrust washer pressing head 3 puts the thrust washer 31 on the rotating shaft 302 of the rotor 30. Then, the first robotic arm 5 picks up the rotor 30 with the thrust washer 31 assembled on the positioning seat 1 2 and puts it on the positioning seat 2 4. Then, the first robotic arm 5 picks up the end cover 32 and puts the end cover 32 on the rotating shaft 302 of the rotor 30. After placing the end cover 32, it returns to its original position to start the next work cycle.

[0071] While the first robotic arm 5 is working, the second robotic arm 6 will first grab an impeller 33, then move it above the second positioning seat 4, grab the rotor 30 with the end cover 32 assembled on the second positioning seat 4, and grab it together with the impeller 33 into the impeller pressing device 7. The impeller 33 is then fitted onto the rotating shaft 302 of the rotor 30 by the impeller pressing device 7, thus realizing the assembly of the impeller 33 and the rotor 30.

[0072] ② Inside the impeller pressing device 7, after the impeller 33 and rotor 30 are assembled, the rotor gripper 17 of the third robot 14 can grip the rotor 30 with the impeller 33 assembled and transfer it to the discharge conveyor belt 15. The discharge conveyor belt 15 moves it out to the shield sleeve 37 assembly station. It is assembled into the shield sleeve 37 by manual means or by the shield sleeve 37 assembly equipment. After assembly, it is placed on the shield sleeve positioning station 161 of the feeding conveyor track 16 and transported to a position that can be grasped by the third robot 14.

[0073] ③ The fourth robotic arm 20 first clamps the rubber ring 34 into the rubber ring conveying track 27. Specifically, the clamping method is as follows: the two arc-shaped clamping plates 231 of the rubber ring clamping claw 23 approach each other, allowing them to pass through the inner hole of the rubber ring 34. Then, the two arc-shaped clamping plates 231 open a certain distance, so that the supporting flanges 232 at the lower ends of the two arc-shaped clamping plates 231 simultaneously support the rubber ring 34, thus clamping it. Next, the rubber ring clamping claw 23 moves above the housing assembly conveying track 18, allowing the two clamping claws to extend into the housing assembly 21. Then, the two arc-shaped clamping plates 231 slightly approach each other to place the rubber ring 34 into the rubber ring 34 groove at the lower part of the housing 28. Finally, the two arc-shaped clamping plates 231 open again, as... Figure 17 As shown, at this time, the support flanges 232 at the lower ends of the two arc-shaped clamping plates 231 can support the bottom of the housing 28, thereby gripping the housing assembly 21 and gripping the housing assembly 21 onto the positioning seat of the housing 28.

[0074] ④ While step ③ is being performed, the third robotic arm 14 uses the shielded sleeve gripper 22 to grab the component that is being transported back from the feed conveyor track 16. This component is the assembly of the shielded sleeve 37, rotor 30, thrust washer 31, and impeller 33. Then it moves to the housing positioning seat 19 and presses the component into the housing assembly 21, thus completing the entire assembly process of the assembly equipment for this shielded pump.

[0075] ⑤ The fourth robotic arm 20 uses the housing gripper 35 to grab the pressed product and transfer it to the discharge conveyor belt 38 to discharge the product.

[0076] The pressing process of the thrust washer 31 is as follows: the thrust washer conveying track 11 continuously conveys the thrust washer 31 forward, so that when the feeding plate 13 is in an empty state, the thrust washer conveying track 11 can convey the thrust washer 31 onto the feeding plate 13. Then, the piston rod of the feeding cylinder 12 extends, causing the feeding plate 13 to move directly below the thrust washer pressing head 3. The thrust washer pressing head 3 can then grab the thrust washer 31 on the feeding plate 13 and move downward to fit the thrust washer 31 onto the rotating shaft 302 of the rotor 30. At the same time, the feeding cylinder 12 will drive the feeding plate 13 to retract and reset. At this time, the conveying track will replenish the thrust washer 31 into the feeding plate 13 again. This cycle is repeated to realize the automatic feeding of the thrust washer 31.

[0077] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0078] Although this article uses a lot of terms such as 1. frame; 2. positioning seat one; 2a. main body; 2b. support plane; 2c. limiting part; 2d. oil injection hole; 3. thrust washer pressing head; 4. positioning seat two; 5. first robot arm; 6. second robot arm; 7. impeller pressing device; 71. support seat; 72. impeller positioning seat; 73. pressing head; 8. end cover clamping claw; 9. impeller clamping claw; 10. pressing sleeve; 11. thrust washer conveying track; 12. feeding cylinder; 13. feeding plate; 14. third robot arm; 15. discharge conveyor belt one; 16. feeding conveying track; 161. shielding sleeve positioning station; 17. rotor clamping claw; 18. shell assembly conveying The following are some of the terms used: track; 19. housing positioning seat; 20. fourth robotic arm; 21. housing assembly; 211. rubber ring positioning groove; 22. shielding sleeve clamping claw; 23. rubber ring clamping claw; 231. arc-shaped clamping plate; 232. support flange; 24. oil spraying component one; 25. oil spraying component two; 26. rotor conveying track; 27. rubber ring conveying track; 28. housing; 29. ​​stator; 30. rotor; 301. rotor body; 302. rotating shaft; 31. thrust washer; 32. end cover; 33. impeller; 34. rubber ring; 35. housing clamping claw; 36. gap; 37. shielding sleeve; 38. discharge conveyor belt two, etc., but the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of the invention; interpreting them as any additional limitation would be contrary to the spirit of the invention.

Claims

1. An assembly apparatus for canned pumps comprising a frame (1), characterized in that, The rack (1) is provided with a positioning seat one (2) and a thrust washer pressing head (3) which can assemble the thrust washer (31) to the rotor (30) when the rotor (30) is placed on the positioning seat one (2), the assembly equipment further comprises a positioning seat two (4), a first mechanical hand (5), a second mechanical hand (6) and an impeller pressing device (7) for assembling the impeller (33) to the rotor (30), the first mechanical hand (5) can grab the rotor (30) and place the rotor (30) on the positioning seat one (2) and further grab the rotor (30) with the assembled thrust washer (31) on the positioning seat one (2) to the positioning seat two (4), the first mechanical hand (5) is further provided with an end cover clamping claw (8) which can grab the end cover (32) and move to the upper side of the positioning seat two (4) and assemble the end cover (32) to the rotor (30), the second mechanical hand (6) can grab the rotor (30) with the assembled end cover (32) on the positioning seat two (4) to the impeller pressing device (7), and the second mechanical hand (6) is further provided with an impeller clamping claw (9) which can grab the impeller (33) and place the impeller (33) in the impeller pressing device (7).

2. The assembling apparatus of a canned pump according to claim 1, characterized by The second mechanical hand (6) is further provided with a pressing sleeve (10), and the second mechanical hand (6) can drive the pressing sleeve (10) to move to the upper side of the positioning seat two (4) and press the end cover (32) on the upper side of the positioning seat two (4) so that the end cover (32) is installed in place on the rotor (30).

3. The assembling apparatus of a canned pump according to claim 1, wherein The rack (1) is provided with a thrust washer conveying track (11) and a feeding cylinder (12), the piston rod of the feeding cylinder (12) is horizontally arranged, and a feeding plate (13) is connected to the piston rod, the feeding plate (13) is connected to the outlet end of the thrust washer conveying track (11), and the feeding cylinder (12) can also drive the feeding plate (13) to move directly below the thrust washer pressing head (3), and the thrust washer pressing head (3) can grab the thrust washer (31) on the feeding plate (13) and then move downward to sleeve the thrust washer (31) on the rotating shaft (302) of the rotor (30).

4. The assembling apparatus of a canned pump according to claim 1 or 2 or 3, characterized in that, The assembly equipment of the screen pump further comprises a third mechanical hand (14), an outfeed conveying belt one (15), an infeed conveying track (16), the first mechanical hand (5), the second mechanical hand (6) and the third mechanical hand (14) are all provided with a rotor clamping claw (17), the third mechanical hand (14) can drive the rotor clamping claw (17) to move between the impeller pressing device (7) and the outfeed conveying belt one (15), and the infeed conveying track (16) is provided with a plurality of shield sleeve positioning stations (161) which can position the shield sleeve (37).

5. The assembling apparatus of a canned pump according to claim 4, wherein The assembling equipment of the shielding pump further comprises a casing assembly conveying track (18) for conveying the casing assembly (21) formed by assembling the stator (29) and the casing (28) together, a casing positioning seat (19) and a fourth mechanical arm (20) capable of grabbing the casing assembly (21) on the casing assembly conveying track (18) to the casing positioning seat (19).

6. The assembling apparatus of a canned pump according to claim 5, wherein The fourth mechanical arm (20) is provided with a rubber ring clamping jaw (23) having two mutually symmetrical and mutually approachable or mutually separable arc-shaped clamping plates (231), the inner concave surfaces of the two arc-shaped clamping plates (231) are opposite to each other, and the outer convex surfaces of the lower ends of the two arc-shaped clamping plates (231) are provided with protruding support flanges (232), the rubber ring clamping jaw (23) can pass through the inner hole of the rubber ring (34) after the two arc-shaped clamping plates (231) are approached to each other, and the support flanges (232) at the lower ends of the two arc-shaped clamping plates (231) can simultaneously support the rubber ring (34) after the two arc-shaped clamping plates (231) are separated from each other.

7. The assembling apparatus of a canned pump according to claim 6, characterized in that, The fourth mechanical arm (20) can drive the rubber ring clamping jaw (23) to extend into the stator (29) of the casing assembly (21) and make the rubber ring (34) fall into the rubber ring positioning groove (211) at the bottom of the casing (28) by approaching the two arc-shaped clamping plates (231) to each other, and the two arc-shaped clamping plates (231) of the rubber ring clamping jaw (23) can also be separated from each other to simultaneously support the bottom of the casing (28) by the support flanges (232) at the lower ends of the two arc-shaped clamping plates (231) after the rubber ring (34) is separated from the rubber ring clamping jaw (23).

8. The assembling apparatus of a canned pump according to claim 1 or 2 or 3, characterized in that, The positioning seat one (2) comprises a main body part (2a) provided with a horizontally arranged support plane (2b) for placing the rotor (30), and an arc-shaped limiting part (2c) protruding upward relative to the support plane (2b), the rack (1) is further provided with an oil injection part one (24) capable of injecting oil toward the rotor (30) when the rotor (30) is placed on the support plane (2b), and the support plane (2b) is provided with a vertically arranged oil injection hole (2d), and the positioning seat one (2) is further connected with an oil injection part two (25) capable of injecting oil into the oil injection hole (2d).

9. The assembling apparatus of a canned pump according to claim 5, wherein The outfeed conveying belt one (15) is arranged in parallel below the infeed conveying track (16), and the assembling equipment of the shielding pump further comprises an outfeed conveying belt two (38) arranged in parallel below the casing assembly conveying track (18).

10. The assembling apparatus of a canned pump according to claim 6, wherein The assembling device of the present shield pump further comprises a rotor conveying track (26) and a rubber ring conveying track (27), the first mechanical arm (5) picks up the rotor (30) from the rotor conveying track (26), and the rubber ring clamping jaw (23) of the fourth mechanical arm (20) picks up the rubber ring (34) from the rubber ring conveying track (27).

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