O-ring loading device and loading method

Abstract

This technical solution belongs to the technical field of submersible pump assembly equipment, specifically involving an O-ring feeding device and method. It includes a frame, an O-ring feeding device for conveying O-rings to an O-ring transfer device, an O-ring transfer device mounted on the frame with a clamping mechanism at its lower part for feeding the O-rings onto a support ring positioning device, a support ring positioning device located beside the O-ring transfer device for stretching and expanding the fed O-rings, and an expansion ring installation device located beside the support ring positioning device. The expansion ring installation device includes an expansion ring assembly at its lower part that expands the O-ring. The support ring positioning device first expands the O-ring and then releases it, allowing the O-ring to naturally rebound to its centered position using its own elasticity, thus determining the O-ring's positioning before installation. The expansion ring installation device slides through the installation assembly, fitting the O-ring onto the outside of a suitable oil pipe cover, improving installation efficiency.

Description

Technical Field

[0001] This technical solution relates to the field of submersible pump assembly equipment technology, specifically to an O-ring feeding device and feeding method. Background Technology

[0002] A submersible pump is a type of pump specifically designed for extracting and transporting water deep underground. It typically integrates the electric motor and the pump body into one unit.

[0003] Submersible pumps have a wide range of applications, including farmland irrigation and drainage, water circulation in industrial and mining enterprises, urban water supply and drainage systems, and sewage treatment. Before starting a submersible pump, a key step is to ensure that the suction pipe and the inside of the pump body are completely filled with liquid. The end also needs to be tightly sealed by the end cover. To further enhance the sealing effect, O-rings are often installed on the end cover for sealing.

[0004] To improve installation efficiency, O-rings are typically installed using automated mechanical installation. However, O-rings have a certain degree of elasticity and flexibility. Due to their special material, they are prone to positional deviation during automated feeding, making it difficult to accurately align with the installation position. This results in poor feeding and positioning, leading to low installation efficiency. Summary of the Invention

[0005] This technical solution aims to improve the problem of poor positioning effect during O-ring feeding due to the elasticity and flexibility of O-rings, resulting in low installation efficiency. It provides an O-ring feeding device and feeding method.

[0006] The purpose of this technical solution is achieved as follows:

[0007] An O-ring feeding device is used to fit O-rings onto the outside of a suitable oil tank lid. The device includes a frame and an O-ring feeding device mounted on the frame for storing and conveying O-rings.

[0008] The O-ring transfer device is mounted on the frame. The lower part of the O-ring transfer device is equipped with a clamping mechanism for clamping O-rings, which is used to clamp O-rings from the O-ring feeding device to the support ring positioning device.

[0009] A support ring positioning device is provided on the side of the support ring positioning device, which is used to stretch and position the O-ring clamped by the clamping mechanism;

[0010] An expansion ring installation device is disposed beside the support ring positioning device. The expansion ring installation device includes an expansion ring assembly, an installation assembly, and a drive assembly. The drive assembly drives the expansion ring assembly to expand the O-ring on the support ring positioning device, so that the installation assembly installs the O-ring onto the oil tank cover.

[0011] With the above technical solution, when the O-ring feeding device and feeding method are in normal use, the O-ring feeding device has O-ring material prepared on it. It drives the O-rings to be conveyed one by one to the preset position on the frame. The O-ring transfer device drives the clamping mechanism at its lower part to accurately clamp an O-ring located on the frame and transfer it to the support ring positioning device. The support ring positioning device then stretches and expands the O-ring and then releases it. Since the O-ring itself has a certain elasticity, it naturally rebounds to a position that is more central, thus determining the positioning of the O-ring before installation and improving the subsequent support ring accuracy.

[0012] The expansion ring installation device uses a drive assembly to drive the expansion ring assembly at its lower part to approach the O-ring on the support ring positioning device, thus expanding the O-ring. The O-ring has a certain elasticity. The drive assembly moves the expansion ring installation device close to the oil tank cover, and the installation assembly fits the O-ring onto the outside of the oil pipe cover, thereby completing the O-ring installation, improving the positioning effect during O-ring installation, and increasing installation efficiency.

[0013] Preferably, the support ring positioning device includes a mounting frame and a support ring assembly disposed on the mounting frame;

[0014] The upper end of the mounting frame has a material tray, and the material tray has several movable slots along the circumference. The support ring assembly is located at the lower part of the material tray.

[0015] The ring support assembly includes a ring support drive, a rotating shaft, and a ring support that slides below the movable groove. The rotating shaft is provided with threaded sections with opposite helical directions at both ends. There are two ring support members, each threadedly connected to a corresponding threaded section. Each ring support member has a ring support post, and the upper ends of the two ring support posts pass through the corresponding movable groove.

[0016] The support ring drive component drives the two support ring components to move closer or further apart through a rotating shaft, thereby achieving the positioning of the O-ring on the material tray.

[0017] With the above technical solution, after an O-ring is placed flat on the upper end face of the material tray of the mounting frame, both support rings pass upward through the movable groove of the material tray, thus positioning themselves inside the O-ring. The support ring drive drives the rotating shaft to rotate. Based on the fact that the two support rings are respectively engaged with the threaded sections at both ends of the rotating shaft with opposite helical directions, the two support rings slide synchronously in opposite directions. The two support rings located on opposite sides form balanced expansion force points on the O-ring at both ends, opening the O-ring to make its shape more stable and uniform. Moreover, the center of the O-ring is closer to the midpoint between the two support rings, ensuring the smoothness and efficiency of the O-ring opening process.

[0018] Preferably, the expansion ring mounting device further includes a second mounting frame, on which a sliding platform is slidably disposed, and on which a mounting base is slidably disposed, wherein the sliding direction of the sliding platform is perpendicular to the sliding direction of the mounting base.

[0019] The mounting base is provided with the expansion ring assembly and the mounting assembly. The driving assembly includes a sliding drive component one and a sliding drive component two. The sliding drive component one drives the sliding stage to move between a first position and a second position, and the sliding drive component two drives the mounting base to rise and fall.

[0020] Through the above technical solution, the sliding drive component one drives the sliding table to slide, thereby adjusting the position of the expansion ring assembly and the installation assembly in the horizontal direction, realizing repeated switching between the support ring positioning device and the oil tank cover. When the expansion ring assembly is located at the support ring positioning device, the sliding drive component two drives it downward to approach the O-ring to obtain the O-ring. When the expansion ring assembly is located at the oil tank cover, the sliding drive component two drives it downward to approach the oil tank cover, and the installation assembly installs the O-ring onto the oil tank cover. This provides better operational flexibility and improves installation efficiency.

[0021] Preferably, the expansion ring assembly includes an expansion ring base, which is rotatably disposed at the lower part of the mounting base, and the mounting base is provided with a rotation drive member for driving the expansion ring base to rotate;

[0022] The movable block is slidably disposed at the lower part of the expansion ring base. The movable block includes a plurality of movable blocks, and the positions of the movable blocks correspond one-to-one with the movable grooves. The lower end of the movable block protrudes with a movable column.

[0023] The expansion ring drive component, through a transmission structure, drives all the moving blocks to slide synchronously, causing the moving column to expand the O-ring outward.

[0024] Through the above technical solution, the rotating drive unit drives the expansion ring base to rotate and adjust around the axis, ensuring that the position of the movable column in each movable block can correspond one-to-one with the position of the movable slot. The expansion ring drive unit drives all movable blocks to slide outward. Based on the sliding direction of each movable block, it radiates outward from the axis of the expansion ring base, so that the O-ring is evenly spread open from the inside by the movable column, making the shape more stable and the tension more uniform. The O-ring fastening ring is fitted on the outside of all movable columns, thereby realizing the acquisition of O-rings and improving the installation accuracy and efficiency of O-rings.

[0025] Preferably, the mounting assembly includes a stripping drive and a stripping plate disposed at the output end of the stripping drive. The stripping plate is slidably connected to the expansion ring base, and the expansion ring base is provided with a guide post passing through the stripping plate to guide the sliding.

[0026] The stripping plate is provided with a plurality of stripping components, which are movably mounted on the movable block in a corresponding manner. Each stripping component is fitted with an elastic element, and the elastic force of the elastic element causes the stripping component to tend to press against the stripping plate.

[0027] The stripping drive unit drives the stripping plate to slide, thereby pushing all the stripping components to move synchronously, so that the lower end of the stripping component disengages the O-ring from the movable column.

[0028] With the above technical solution, when the expansion ring base approaches the oil tank cover to a specified height, the O-ring is wrapped around the fitting position. The ejector drive drives the ejector plate to slide, and the ejector plate overcomes the elastic force of the elastic element to compress the elastic element. Based on the sliding fitting connection between the ejector and the movable block, the ejector moves downward relative to the movable block until it is misaligned with the movable column. At this time, the lower end of the ejector can push against the O-ring on the movable column, disengaging the O-ring from the movable column, thereby achieving the ring being fitted around the outside of the oil tank cover.

[0029] Preferably, the transmission structure includes a first gear and a second gear rotatably mounted on the expansion ring base, and a spiral chassis. The first gear is located at the output end of the expansion ring drive component, the second gear meshes with the first gear, and the second gear is coaxially mounted with the spiral chassis.

[0030] The spiral chassis has several guide grooves, the positions of which correspond one-to-one with the movable blocks. The upper end of each movable block has a guide part located within the guide groove. The extension direction of the guide groove guides the guide part to move, thereby enabling the movable block to slide.

[0031] Through the above technical solution, the expansion ring drive component drives gear one to rotate from the output end. Based on the meshing of gear one and gear two, gear two is driven to rotate. The rotation of gear two drives the spiral chassis to rotate. By the different rotation directions of the spiral chassis, the guide grooves on the spiral chassis guide the guide part in opposite directions, thereby realizing the synchronous sliding of the moving blocks to converge or expand, and improving the accuracy of operation.

[0032] Preferably, the frame is provided with a material storage bin and an edge detection device. The material storage bin is connected to the discharge end of the O-ring feeding device, and the edge detection device is mounted above the material storage bin. The detection end of the edge detection device faces the material storage bin to identify the edge contour of the O-ring.

[0033] The O-ring transfer device includes a transfer drive, a first crank arm disposed at the output end of the transfer drive, and a second crank arm rotatably disposed at the other end of the first crank arm.

[0034] The clamping mechanism is provided at the end of the second crank arm, and the clamping mechanism is driven to rise and fall by the second crank arm through a screw structure.

[0035] Through the above technical solution, the material preparation bin is placed on the frame and has a box-shaped structure. The material preparation bin can accommodate the O-rings conveyed by the O-ring feeding device, preventing the O-rings from scattering randomly and providing convenience for subsequent detection and clamping operations. The edge detection device has the function of contour detection. Its detection end faces the O-rings on the frame. Based on the fact that the O-rings are linear rings, it can identify and capture the overall contour information of the O-rings, so that the clamping mechanism can clamp the edge of the O-rings, improving the accuracy and efficiency of O-ring clamping and feeding.

[0036] The transfer drive unit drives the first crank arm to rotate via its output end. Since the other end of the first crank arm is hinged to the second crank arm, the second crank arm can also rotate and adjust relative to it, forming a two-section crank arm swing structure. This provides a wider working range and greater flexibility in use. The second crank arm can drive the clamping mechanism to move above the material preparation bin or above the material tray to perform the operations of acquiring and placing O-rings, respectively. When the clamping mechanism reaches the predetermined position, the clamping drive unit drives its lower clamping mechanism to approach the O-ring. The clamping mechanism clamps the edge of the O-ring. At this time, the transfer drive unit drives the first and second crank arms to move, transferring the O-ring to the material tray to complete the transfer and installation of the O-ring. Throughout the process, the coordinated work of the transfer drive unit, the first crank arm, the second crank arm, and the clamping mechanism achieves precise clamping and transfer of the O-ring, further ensuring the accuracy and efficiency of installation.

[0037] Preferably, the O-ring feeding device includes a feeding mechanism and a shifting mechanism, wherein the shifting mechanism drives the feeding mechanism to move;

[0038] The shifting mechanism includes a first sliding cylinder, a slide table that slides on the frame, a second sliding cylinder, and a slide frame that slides on the slide table. The first sliding cylinder and the second sliding cylinder correspond one-to-one and drive the slide table and the slide frame to move respectively. The sliding direction of the slide table is perpendicular to the sliding direction of the slide frame.

[0039] The feeding mechanism includes an O-ring material rack mounted on the slide, a storage rod horizontally mounted on the O-ring material rack, and a feeding structure. Several O-rings are hung on the storage rod.

[0040] The feeding structure includes a feeding drive and a feeding plate slidably connected to the O-ring material rack. The feeding drive drives the feeding plate to slide along the length of the O-ring material rack to push the O-ring at the foremost end away from the storage rod.

[0041] Through the above technical solution, the O-ring feeding device is installed on the frame, and several O-rings are neatly hung on the storage rod in the feeding mechanism for storage. The first sliding cylinder drives the slide table to slide, which in turn drives the slide frame to move in the horizontal direction, while the second sliding cylinder drives the slide frame to slide, which in turn drives the feeding mechanism to move in the horizontal direction perpendicular to the sliding direction of the slide table. This realizes the position adjustment of the feeding mechanism between two axes, improves the positioning accuracy, and improves the flexibility of the feeding mechanism in two-dimensional plane movement.

[0042] When the front end of the storage rod is above the material preparation bin, the feeding drive drives the feeding plate to slide along the length of the O-ring material rack. This action causes the feeding plate to push the O-rings arranged on the storage rod forward, ensuring that the O-rings move forward step by step in a predetermined order and fall into the material preparation bin below (the material preparation bin is located on the frame and adjacent to the frame), thereby realizing continuous feeding of O-rings, automated operation, and improved production efficiency.

[0043] Preferably, the O-ring material rack is further provided with a material limiting structure, which includes a material limiting drive component and a material limiting plate that slides on the O-ring material rack. The material limiting plate is aligned with the end of the storage rod through the opening of the O-ring material rack.

[0044] The material limiting drive component drives the material limiting plate to move, thereby changing the clearance distance between the material limiting plate and the storage rod.

[0045] Through the above technical solution, the limiting drive component in the limiting structure drives the limiting plate to slide on the O-ring material rack, adjusting the gap between the limiting plate and the end of the storage rod. Through precise control, the supply of O-rings can be effectively controlled. When there is a gap, the O-rings can pass through, ensuring that an appropriate number of O-rings are pushed to the working area each time. When there is no gap, the O-rings are restricted from leaving the storage rod, thereby achieving precise and orderly management of O-ring replenishment and limiting.

[0046] Preferably, a feeding method, applied to the O-ring feeding device described above, includes the following steps:

[0047] S1. Initial feeding stage: The storage rod prepares O-rings, the storage rod moves towards the preparation bin, and the feeding plate pushes the O-rings into the preparation bin. The feeding of O-rings is completed.

[0048] S2. During the material transfer stage, the edge detection device detects and identifies the O-ring, and transmits the position information of the O-ring outline edge to the O-ring transfer device. The first and second curved arms rotate together until the clamping mechanism is directly above the O-ring. The clamping mechanism clamps the O-ring downwards, then moves upwards away from the material preparation hopper and transfers the O-ring to the material tray, completing the O-ring clamping action.

[0049] S3, the support ring stage, the support ring column of the support ring component slides in the movable groove, the two support ring columns move away from each other, the O-ring is stretched, the two support ring columns retract, and the O-ring maintains a relatively centered position.

[0050] S4, the expansion ring stage: after the expansion ring base moves to the top of the mounting frame, it moves closer to the material tray, so that several movable columns are embedded in the corresponding movable slots. The several movable columns slide in the movable slots. When all the movable columns move outward synchronously, they open up the O-ring located on the material tray.

[0051] S5, during the installation phase, the expansion ring base moves above the oil tank cover and brings the O-ring close to the outside of the oil tank cover. The stripper plate moves downward relative to the movable column. After the lower end face of the stripper 20 coincides with the lower end face of the movable column, it pushes the O-ring located outside the movable column to disengage. The O-ring is then tightly fitted onto the outside of the oil pipe cover, and the installation phase is complete.

[0052] The key and beneficial technical effects of this technical solution compared to existing technologies are:

[0053] 1. This technical solution sets up an O-ring feeding device, an O-ring transfer device, a support ring positioning device, and an expansion ring installation device. The O-ring feeding device feeds O-rings to the frame, the O-ring transfer device transfers O-rings to the support ring positioning device, the support ring positioning device pulls up and expands the O-rings to position them, and the expansion ring installation device expands the O-rings to move them and fits them on the outside of the oil tank cover. The positioning is more accurate and the installation efficiency is improved.

[0054] 2. This technical solution uses an edge detection device installed on the frame to identify the outline of the O-ring and determine its edge position. This ensures that the clamping mechanism in the O-ring transfer device can grasp the edge and move it, thereby improving the accuracy and efficiency of O-ring clamping and feeding. Attached Figure Description

[0055] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0056] Figure 2 This is a schematic diagram of the overall structure of the O-ring feeding device in the embodiment;

[0057] Figure 3 This is a schematic diagram of the overall structure of the feeding mechanism in the embodiment;

[0058] Figure 4 This is a schematic diagram of the overall structure of the edge detection device in the embodiment;

[0059] Figure 5 This is a partial exploded view of the support ring positioning device in the embodiment;

[0060] Figure 6This is a schematic diagram of the overall structure of the expansion ring mounting device in the embodiment;

[0061] Figure 7 This is a partial cross-sectional schematic diagram of the expansion ring mounting device in the embodiment;

[0062] Figure 8 This is a partial structural diagram of the transmission component in the embodiment;

[0063] Figure 9 This is a schematic diagram of the operating structure of the support ring assembly in the embodiment;

[0064] Figure 10 This is a schematic diagram of the operational structure of the installed components in the embodiment.

[0065] Reference numerals: 1. Frame; 2. O-ring feeding device; 21. Feeding mechanism; 211. O-ring material rack; 212. Storage rod; 213. Feeding structure; 2131. Feeding drive component; 2132. Feeding plate; 22. Shifting mechanism; 221. Sliding cylinder one; 222. Slide table; 223. Sliding cylinder two; 224. Slide frame; 3. O-ring transfer device; 31. Transfer drive component; 32. First crank arm; 33. Second crank arm; 4. Support ring positioning device; 41. Mounting frame one; 42. Support ring assembly; 421. Support ring drive component; 422. Support ring component; 423. Rotating shaft; 5. Expansion ring mounting device; 51. Expansion ring assembly; 511. Expansion ring base; 512. Movable block; 51 3. Expansion ring drive component; 52. Mounting assembly; 521. Stripping drive component; 522. Stripping plate; 53. Drive assembly; 531. Sliding drive component one; 532. Sliding drive component two; 54. Mounting bracket two; 6. Material tray section; 7. Movable groove; 8. Rotation drive component; 9. Guide column; 10. Support ring column; 11. Edge detection device; 13. Clamping mechanism; 14. Movable column; 15. Material limiting structure; 151. Material limiting drive component; 152. Material limiting plate; 17. Material preparation bin; 18. Sliding table; 19. Mounting base; 20. Stripping component; 23. Elastic component; 24. Transmission structure; 241. Gear one; 242. Gear two; 243. Spiral chassis; 25. Guide groove; 26. Guide section. Detailed Implementation

[0066] The specific implementation of this technical solution will be further described in detail below with reference to the accompanying drawings.

[0067] Example:

[0068] See Figure 1An O-ring feeding device is used to fit O-rings onto the outside of a suitable oil tank cap. The device includes a frame 1. In this embodiment, the frame 1 includes two frame parts placed adjacent to each other. It also includes an O-ring feeding device 2, an O-ring transfer device 3, a ring support positioning device 4, an expansion ring installation device 5, and an edge detection device 11. The O-ring feeding device 2 is installed on the rear frame part of the frame 1, the O-ring transfer device 3 and the edge detection device 11 are installed on the front frame part of the frame 1, and the ring support positioning device 4 and the expansion ring installation device 5 are installed on the side of the front frame 1.

[0069] See Figure 2 and Figure 3 The O-ring feeding device 2 includes a feeding mechanism 21 and a shifting mechanism 22. The shifting mechanism 22 drives the feeding mechanism 21 to move its position. In this embodiment, two sets of feeding mechanisms 21 are shown. The shifting mechanism 22 includes a sliding cylinder 221, a slide table 222, a sliding cylinder 223, and a slide frame 224. The slide table 222 is slidably installed on the upper surface of the frame 1 through a slide rail structure. Its sliding direction is horizontal. The sliding cylinder 221 is fixed on the frame 1 and its output shaft drives the slide table 222 to slide.

[0070] Two carriages 224 are spaced apart along the sliding direction of the slide table 222. Both carriages 224 are slidably mounted on the slide table 222 via a slide rail structure. Their sliding direction is perpendicular to the sliding direction of the slide table 222 in the horizontal direction. Two sliding cylinders 223 are installed on the slide table 222 corresponding to the two carriages 224. They drive the corresponding carriages 224 to slide, which in turn drives the feeding mechanism 21 on the carriages 224 to slide in the second direction. In conjunction with the first sliding cylinder 221, the feeding mechanism 21 is driven to slide in the first direction, thereby realizing the position change of the feeding mechanism 21 on the horizontal plane along the XY axis.

[0071] The feeding mechanism 21 includes an O-ring holder 211, a storage rod 212, and a feeding structure 213. The O-ring holder 211 is located at the upper end of the corresponding carriage 224 and has two forward-extending horizontal rods. The storage rod 212 is arranged horizontally parallel to the rods. O-rings are stored in the storage rod 212. O-rings of different sizes are hung on the storage rod 212. The feeding structure 213 includes a feeding drive 2131 and a feeding plate 2132. The feeding plate 2132 is sleeved on the O-ring holder. The two rods of the O-ring holder 211 are driven by the feeding drive 2131 to rotate the storage rod 212. The storage rod 212 is threadedly engaged with the feeding plate 2132, causing the feeding plate 2132 to move back and forth along the length of the storage rod 212, pushing all the O-rings on the storage rod 212 forward. The O-rings can disengage from the front end of the storage rod 212, thereby continuously feeding O-rings. Alternatively, the thread structure of the feeding plate 2132 can be matched with the distribution of O-rings to make the O-rings advance through the threads.

[0072] Each O-ring holder 211 is provided with a limiting structure 15, which is located on the front side of the corresponding storage rod 212. It includes a limiting drive 151 and a limiting plate 152. The O-ring holder 211 has a clearance opening for the limiting plate 152. The lower part of the limiting plate 152 passes through the clearance opening. The limiting plate 152 is set on the output shaft of the limiting drive 151 and slides relative to the O-ring holder 211. Its sliding direction is parallel to the sliding direction of the replenishing plate 2132. The limiting drive 151 drives the limiting plate 152 to slide. When the limiting plate 152 abuts against the end of the storage rod 212, it restricts the O-ring from leaving the storage rod 212. When the limiting plate 152 leaves the storage rod 212, a gap is left between the limiting plate 152 and the end of the storage rod 212 for the O-ring to pass through.

[0073] See Figure 4 The frame 1 is equipped with a material storage bin 17, which is box-shaped. The top of the material storage bin 17 is open and has no closed part. It is located below the discharge end of the O-ring feeding device 2 and can receive and accommodate the O-rings pushed out by the feeding plate 2132. The frame 1 is also equipped with an edge detection device 11, which is mounted above the material storage bin 17. In this embodiment, the edge detection device 11 is shown as consisting of a detection frame and a detection camera. The upper part of the edge detection device 11 extends above the material storage bin 17, and the detector faces the material storage bin 17 at the extended end to identify the outline of the O-rings in the material storage bin 17, determine the position of the edge line of the O-rings, and feed the information back to the O-ring transfer device 3.

[0074] The O-ring transfer device 3 is located beside the edge detection device 11. In this embodiment, a raised platform is installed between the O-ring transfer device 3 and the frame 1. The O-ring transfer device 3 includes a transfer drive 31, a first curved arm 32, and a second curved arm 33. The first curved arm 32 is located above the transfer drive 31, with one end mounted on the motor shaft of the transfer drive 31 and the other end hinged to one end of the second curved arm 33. The second curved arm 33 is located above the first curved arm 32, with a clamping mechanism 13 at its other end away from the hinge. The second curved arm 33 has a drive unit built into it to drive the clamping mechanism 13 to move up and down. The clamping mechanism 13 is preferably an electric gripper. The transfer drive 31 drives the first curved arm 32 and the second curved arm 33 to move together, thereby moving the clamping mechanism 13 to a designated position to open and close.

[0075] See Figure 5The support ring positioning device 4 is located next to the O-ring transfer device 3 and includes a mounting frame 41 and a support ring assembly 42. The mounting frame 41 includes three layers, and the four corners between adjacent layers are supported by pillars. The upper end of the mounting frame 41 has a material tray 6, and the upper end surface is used to place the O-rings to be clamped by the clamping mechanism 13. The material tray 6 has several movable grooves 7 through it. The multiple movable grooves 7 are distributed circumferentially around the axis of the material tray 6, and the length direction of each movable groove 7 radiates outward with the same axis.

[0076] The support ring assembly 42 is located at the lower part of the material tray 6. It includes a rotating shaft 423, a support ring drive 421, and a support ring 422. The rotating shaft 423 is provided with threaded sections with opposite helical directions at both ends. There are two support rings 422, which are threadedly connected to the corresponding threaded sections. The support ring 422 has a support ring post 10, which is fixed to the upper end face of the corresponding support ring 422. The two support ring posts 10 pass through the two movable grooves 7 on opposite sides and protrude from the material tray 6. The support ring drive 421 drives the rotating shaft 423 to rotate, so that the two support rings 422 slide synchronously, causing the support ring posts 10 to slide relative to each other along the corresponding movable grooves 7, moving closer or further away. The sliding of the two support ring posts 10 away from each other makes the stretching O-ring positioned.

[0077] See Figure 6 The expansion ring installation device 5 includes an expansion ring assembly 51, an installation assembly 52, a drive assembly 53, and a second installation frame 54. The second installation frame 54 is located next to the first installation frame 41. A sliding platform 18 is slidably disposed on one side of the second installation frame 54, and an installation seat 19 is slidably disposed on the side of the sliding platform 18 away from the second installation frame 54. The sliding direction of the sliding platform 18 is perpendicular to the sliding direction of the installation seat 19. The drive assembly 53 includes a first sliding drive component 531 and a second sliding drive component 532. The first sliding drive component 531 drives the sliding platform 18 to move between a first position and a second position. When in the first position, the installation seat 19 is located above the support ring positioning device 4. In the second position, it is located above the oil tank cover. The second sliding drive component 532 drives the installation seat 19 to move up and down.

[0078] See Figure 7 and Figure 9 The expansion ring assembly 51 is mounted on the mounting base 19. It includes an expansion ring base 511, a movable block 512 and an expansion ring drive 513. The expansion ring base 511 is rotatably connected to the bottom of the mounting base 19 and is disc-shaped. The mounting base 19 is provided with a rotation drive 8, the drive end of which is connected to the expansion ring base 511 to drive the expansion ring base 511 to rotate around the axial direction.

[0079] Several movable blocks 512 are slidably disposed on the lower part of the expansion ring base 511 via a slide rail structure. In this embodiment, six movable blocks 512 are shown. The six movable blocks 512 are distributed at intervals around the axial direction of the expansion ring base 511. The position of each movable block 512 corresponds to the position of the movable groove 7. Each movable block 512 has a movable column 14 protruding from its lower end. The cross-sectional dimensions of the movable column 14 match the groove width of the movable groove 7.

[0080] The expansion ring drive component 513 drives the movable block 512 to slide. Specifically, the drive mechanism employs a transmission structure 24 installed within the expansion ring base 511. Figure 8 As shown, it includes a first gear 241, a second gear 242, and a spiral base 243. The first gear 241 is located on the output shaft of the expansion ring drive 513 and is coaxial with it. The second gear 242 meshes with the first gear 241 and is coaxial with the spiral base 243. The spiral base 243 is located below the second gear 242. The expansion ring drive 513 is driven to rotate, and the spiral base 243 is driven to rotate through the first gear 241 and the second gear 242. The spiral base 243 is provided with a number of guide grooves 25. The positions of the guide grooves 25 correspond one-to-one with the movable blocks 512. Each movable block 512 has a guide part 26 at its upper end, which is located in the corresponding guide groove 25. The guide part 26 is guided to move in a preset direction through the arc extension direction of the guide groove 25, which drives all the movable blocks 512 to slide synchronously, so that the movable column 14 expands the O-ring outward.

[0081] See Figure 7 and Figure 10 The mounting assembly 52 includes a material ejection drive 521 and a material ejection plate 522. The material ejection plate 522 is located below the expansion ring base 511. The expansion ring base 511 has several guide posts 9 that pass through the material ejection plate 522 to guide its sliding movement. The material ejection plate 522 is mounted on the output shaft of the material ejection drive. Several material ejection components 20 are located below the material ejection plate 522. The positions of the material ejection components 20 correspond one-to-one with the movable blocks 512. Each material ejection component 20 is slidably fitted onto the corresponding movable block 512. Each material ejection component 20 is fitted with an elastic element 23. One end rests against the movable block 512, and the other end causes the elastic force to push the stripper 20 to tend to press against the lower end face of the stripper plate 522. When the stripper drive 521 drives the stripper plate 522, the stripper plate 522 slides down along the guide post 9. The stripper plate 522 overcomes the elastic force of each elastic element 23 and compresses the elastic element 23, so that all stripper elements 20 are pushed down synchronously. When the stripper 20 passes the movable block 512, its lower end pushes the O-ring. When the lower end face of the stripper 20 is lower than the movable block 512 in the horizontal direction, the O-ring is disengaged from the movable post 14.

[0082] The specific work process of this plan is as follows:

[0083] This technical solution prepares several O-rings on the O-ring feeding device 2, which drives the O-rings to be fed one by one to a preset position on the frame 1. The O-ring transfer device 3 drives its lower clamping mechanism 13 to accurately clamp an O-ring located on the frame 1 and transfer it to the support ring positioning device 4. The support ring positioning device 4 then stretches and expands the O-ring, and then releases the O-ring. Since the O-ring itself has a certain elasticity, it naturally rebounds to a more central position, thus determining the positioning of the O-ring before installation. The expansion ring installation device 5 drives its lower expansion ring assembly 51 to approach the O-ring on the support ring positioning device 4 and expand the O-ring. The O-ring has a certain elasticity, and the sliding drive component 532 drives the expansion ring installation device 5 to slide towards the oil tank cover. The expansion ring installation device 5 puts the O-ring on the outside of the suitable oil pipe cover, thereby completing the O-ring installation, improving the positioning effect during O-ring installation, and increasing installation efficiency.

[0084] A feeding method, applied to the O-ring feeding device described above, includes the following steps:

[0085] S1. In the initial feeding stage, O-rings are stored on the storage rod 212. The sliding cylinder 1 221 drives the slide table 222 to move horizontally along the first direction, and the sliding cylinder 223 drives the slide 224 to move along the second direction perpendicular to the first direction. The left and right positions and front and back positions of the feeding mechanism 21 are adjusted until the position of the front part of the storage rod 212 is directly above the position of the preparation bin 17. The limiting drive component 151 drives the limiting plate 152 to move. The limiting plate 152 slides forward along the storage rod 212, leaving a gap between the limiting plate 152 and the storage rod 212. The replenishing drive component 2131 drives the replenishing plate 2132 to slide along the O-ring rack 211. The replenishing plate 2132 applies a forward pushing force to all O-rings on the storage rod 212 until the frontmost O-ring falls into the preparation bin 17 through the gap. The output rate of O-rings is limited by controlling the size of the gap.

[0086] S3. During the material transfer stage, the edge detection device 11 performs detection and identification work, and performs contour scanning on the O-rings in the material preparation bin 17. This scanning process can accurately capture the position information of the edge of the O-ring and transmit this information to the O-ring transfer device 3. The transfer drive 31 drives the first crank arm 32 and the second crank arm 33 to rotate until the clamping mechanism 13 is directly above the position of the O-ring. The clamping mechanism 13 clamps the O-ring downwards and then moves it upwards away from the material preparation bin 17. The clamping mechanism 13 carries the O-ring to the material tray 6 and releases the O-ring, completing the O-ring clamping action.

[0087] S3, Supporting Ring Stage: The supporting ring drive 421 drives the two supporting rings 422 to move away from each other, and the two supporting ring columns 10 slide in the movable groove 7. The O-ring is stretched, and the two supporting ring columns 10 retract. Due to the elastic effect, the O-ring maintains a relatively centered position, thereby completing the accurate positioning of the O-ring on the material tray 6.

[0088] S4, during the expansion stage, the first sliding drive component 531 drives the sliding stage 18 to slide, so that the expansion ring base 511 is located directly above the material tray 6. The second sliding drive component 532 drives the expansion ring assembly 51 to approach the material tray 6. The movable columns 14 can all pass through the corresponding movable slots 7. The expansion ring drive component 513 drives all movable blocks 512 to expand outward synchronously through the transmission structure 24, thus opening up the O-ring located on the material tray 6.

[0089] S5. During the installation phase, the sliding drive component 531 drives the sliding table 521 to position the expansion ring base 511 directly above the oil tank cover. The O-ring is then brought close to the outside of the oil tank cover. The unloading drive component 521 drives the unloading plate 522 downward along the guide column 9, overcoming the elastic force of the elastic component 23 to push the unloading component 20. After the lower end face of the unloading plate 522 and the lower end face of the movable column 14 coincide, the O-ring located outside the movable column 14 is pushed out. The O-ring is then tightly fitted onto the outside of the oil pipe cover. The installation phase is now complete.

[0090] The foregoing has shown and described the basic principles, main features, and advantages of this technical solution. Those skilled in the art should understand that this technical solution is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this technical solution. Various changes and modifications can be made to this technical solution without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed technical solution. The scope of protection of this technical solution is defined by the appended claims and their equivalents.

Claims

1. An O-ring feeding device for fitting O-rings onto the outside of a suitable oil tank lid, characterized in that: Including racks, and also An O-ring feeding device, which is mounted on the frame, is used to store and transport O-rings; The O-ring transfer device is mounted on the frame. The lower part of the O-ring transfer device is equipped with a clamping mechanism for clamping O-rings, which is used to clamp O-rings from the O-ring feeding device to the support ring positioning device. A ring support positioning device is provided on the side of the O-ring transfer device for stretching and positioning the O-ring clamped by the clamping mechanism. The ring support positioning device includes a mounting frame, the upper end of which has a material tray, and the material tray has several movable grooves along the circumference. An expansion ring installation device is disposed beside the support ring positioning device. The expansion ring installation device includes an expansion ring assembly, an installation assembly, and a drive assembly. The drive assembly drives the expansion ring assembly to expand the O-ring on the support ring positioning device, so that the installation assembly installs the O-ring onto the oil tank cover. The expansion ring installation device also includes a second mounting frame. A sliding platform is slidably disposed on the second mounting frame, and a mounting seat is slidably disposed on the sliding platform. The sliding direction of the sliding platform is perpendicular to the sliding direction of the mounting seat. The expansion ring assembly and the installation assembly are disposed on the mounting seat. The drive assembly includes a first sliding drive component and a second sliding drive component. The first sliding drive component drives the sliding platform to move between a first position and a second position, and the second sliding drive component drives the mounting seat to rise and fall. The expansion ring assembly includes an expansion ring base, movable blocks, and an expansion ring drive component. The expansion ring base is rotatably disposed at the lower part of the mounting base. The mounting base is provided with a rotation drive component for driving the expansion ring base to rotate. The movable blocks are slidably disposed at the lower part of the expansion ring base. The movable blocks include a plurality of blocks, and the positions of the movable blocks correspond one-to-one with the distribution of the movable slots. The lower end of each movable block has a protruding movable column. The expansion ring drive component drives all the movable blocks to slide synchronously through a transmission structure, so that the movable column expands the O-ring outward. The installation assembly includes a stripping drive and a stripping plate disposed at the output end of the stripping drive. The stripping plate is slidably connected to the expansion ring base. The expansion ring base is provided with a guide post passing through the stripping plate to guide the sliding. The stripping plate is provided with a plurality of stripping components, each of which is movably disposed on the movable block. An elastic element is sleeved on each stripping component. The elastic force of the elastic element causes the stripping component to tend to press against the stripping plate. The stripping drive drives the stripping plate to slide, thereby pushing all the stripping components to move synchronously, so that the lower end of the stripping component disengages the O-ring from the movable post.

2. The O-ring feeding device according to claim 1, characterized in that: The support ring positioning device also includes a support ring assembly disposed at the lower part of the material tray. The support ring assembly includes a support ring drive, a rotating shaft, and a support ring component that slides below the movable groove. The rotating shaft is provided with threaded sections at both ends with opposite helical directions. There are two support ring components, and the support ring components are threadedly connected to the corresponding threaded sections. The support ring component has a support ring post, and the upper ends of the two support ring posts pass through the corresponding movable groove. The support ring drive component drives the two support ring components to move closer or further apart through a rotating shaft, thereby achieving the positioning of the O-ring on the material tray.

3. The O-ring feeding device according to claim 1, characterized in that: The transmission structure includes a first gear and a second gear rotatably mounted on the expansion ring base, and a spiral chassis. The first gear is located at the output end of the expansion ring drive component, the second gear meshes with the first gear, and the second gear is coaxially mounted with the spiral chassis. The spiral chassis has several guide grooves, the positions of which correspond one-to-one with the movable blocks. The upper end of each movable block has a guide part located within the guide groove. The extension direction of the guide groove guides the guide part to move, thereby enabling the movable block to slide.

4. The O-ring feeding device according to claim 1, characterized in that: The frame is equipped with a material storage bin and an edge detection device. The material storage bin is connected to the discharge end of the O-ring feeding device. The edge detection device is mounted above the material storage bin, and the detection end of the edge detection device faces the material storage bin to identify the edge contour of the O-ring. The O-ring transfer device includes a transfer drive, a first crank arm disposed at the output end of the transfer drive, and a second crank arm rotatably disposed at the other end of the first crank arm. The clamping mechanism is provided at the end of the second crank arm, and the clamping mechanism is driven to rise and fall by the second crank arm through a screw structure.

5. The O-ring feeding device according to claim 1, characterized in that: The O-ring feeding device includes a feeding mechanism and a shifting mechanism, wherein the shifting mechanism drives the feeding mechanism to move; The shifting mechanism includes a slide table that slides on the frame, a first sliding cylinder that drives the slide table to slide, a slide frame that slides on the slide table, and a second sliding cylinder that drives the slide frame to slide. The sliding direction of the slide table is perpendicular to the sliding direction of the slide frame. The feeding mechanism includes an O-ring material rack mounted on the slide, a storage rod horizontally mounted on the O-ring material rack, and a feeding structure. Several O-rings are hung on the storage rod. The feeding structure includes a feeding drive and a feeding plate slidably connected to the O-ring material rack. The feeding drive drives the feeding plate to slide along the length of the O-ring material rack to push the O-ring at the foremost end away from the storage rod.

6. The O-ring feeding device according to claim 5, characterized in that: The O-ring material rack is also provided with a material limiting structure, which includes a material limiting drive component and a material limiting plate that slides on the O-ring material rack. The material limiting plate is aligned with the end of the storage rod through the opening of the O-ring material rack. The material limiting drive component drives the material limiting plate to move, thereby changing the clearance distance between the material limiting plate and the storage rod.

7. A feeding method, characterized in that: The O-ring feeding device according to claim 1 includes the following steps: S1. Initial feeding stage: The storage rod prepares O-rings, the storage rod moves towards the preparation bin, and the feeding plate pushes the O-rings into the preparation bin. The feeding of O-rings is completed. S2. During the material transfer stage, the edge detection device detects and identifies the O-ring, and transmits the position information of the O-ring outline edge to the O-ring transfer device. The first and second curved arms rotate together until the clamping mechanism is directly above the O-ring. The clamping mechanism clamps the O-ring downwards, then moves upwards away from the material preparation hopper and transfers the O-ring to the material tray, completing the O-ring clamping action. S3, the support ring stage, the support ring column of the support ring component slides in the movable groove, the two support ring columns move away from each other, the O-ring is stretched, the two support ring columns retract, and the O-ring maintains a relatively centered position. S4, the expansion ring stage: after the expansion ring base moves to the top of the mounting frame, it moves closer to the material tray, so that several movable columns are embedded in the corresponding movable slots. The several movable columns slide in the movable slots. When all the movable columns move outward synchronously, they open up the O-ring located on the material tray. S5, during the installation phase, the expansion ring base moves above the oil tank cover and brings the O-ring close to the outside of the oil tank cover. The stripper plate moves downward relative to the movable column. After the lower end face of the stripper part and the lower end face of the movable column coincide, the O-ring located on the outside of the movable column is pushed to disengage. The O-ring is then tightly fitted onto the outside of the oil pipe cover. The installation phase is now complete.

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