Dual-acupoint screw sleeve ring device

Abstract

The utility model relates to a kind of double acupoint screw sleeve ring devices, the double acupoint screw sleeve ring device includes O-ring loading mechanism, screw loading mechanism, carousel mechanism and sleeve ring mechanism;The screw loading mechanism includes second conveying component, second material taking table, second material taking component and distributing component, the second conveying component is used to provide screw, and the screw is conveyed to the second material taking table, the distributing component is used to push one or two screws to material taking station;The sleeve ring mechanism is divided into at least two groups, at least two groups The sleeve ring mechanism is arranged on the carousel mechanism in the circumferential direction, each sleeve ring mechanism is sequentially driven by the carousel mechanism to pass through O-ring loading station and screw loading station, and the number of each sleeve ring mechanism is two.The double acupoint screw sleeve ring device can adjust the number of screw sleeve ring in single time.

Description

Technical Field

[0001] This utility model relates to the field of screw assembly technology, and in particular to a double-cavity screw ring device. Background Technology

[0002] O-rings are rubber seals with a circular cross-section. They are called O-rings because of their O-shaped cross-section. They are used to seal various fluids such as oil, water, and gas. The common method is to fit them onto sealing connectors, such as screws.

[0003] In the assembly process of O-rings onto screws, the screw-O-ring coupling process faces technical bottlenecks such as difficulty in the elastic expansion of O-rings and low assembly accuracy. Traditional screw coupling equipment generally suffers from structural design flaws when handling O-ring expansion, resulting in the O-rings failing to expand evenly or be stably positioned, leading to high screw insertion resistance and a high coupling failure rate. Furthermore, screw assembly is usually done in batches, and the process requirements vary each time. For example, some processes require coupling one screw at a time, while others, to increase coupling speed, couple screws are coupled simultaneously.

[0004] How to automate the change in the number of screws assembled in a single operation for the same device is also a problem that needs to be solved. Utility Model Content

[0005] In view of this, the present invention provides a dual-aperture screw ring fitting device to solve the problem of automatic screw and O-ring fitting.

[0006] To achieve the above objectives, the technical solution of this utility model is to provide a dual-cavity screw ring feeding device, comprising: an O-ring feeding mechanism, a screw feeding mechanism, a turntable mechanism, and a ring feeding mechanism; the screw feeding mechanism includes a second conveying component, a second feeding platform, a second feeding component, and a distributing component; the second conveying component provides the screw and conveys it to the second feeding platform; the distributing component pushes one or two screws to the feeding station; the ring feeding mechanism is divided into at least two groups, and the at least two groups of rings... The mechanism is circumferentially mounted on the turntable mechanism. Each group of the ring-feeding mechanisms passes sequentially through the O-ring feeding station and the screw feeding station under the drive of the turntable mechanism. Each group of ring-feeding mechanisms consists of two units. The second material-taking component is used to transport the screw at the material-taking station to the ring-feeding mechanism at the screw feeding station. The O-ring feeding mechanism is used to transport the O-ring to the ring-feeding mechanism at the O-ring feeding station. Each group of ring-feeding mechanisms is used to fit the O-ring onto the screw at the screw feeding station.

[0007] Preferably, the O-ring feeding mechanism includes a first conveying component, a first picking platform, and a first picking component. The first conveying component is used to provide O-rings and convey the O-rings to the first picking platform. The first picking component is used to convey the O-rings from the first picking platform to the ring-feeding mechanism.

[0008] Preferably, the first material handling component includes a material handling module and a material handling gripper. The material handling gripper is connected to the material handling module, and the material handling module drives the material handling gripper to clamp the O-ring at the first material handling platform onto the ring-jointing mechanism.

[0009] Preferably, the material distribution assembly includes a feeding slide, a material distribution block, and a material distribution cylinder. The feeding slide is disposed at one end of the second conveying assembly. The material distribution block is slidably connected to the feeding slide and has two material distribution slots. The material distribution cylinder drives the material distribution block to slide on the feeding slide, so that the two material distribution slots pass through the second conveying assembly in sequence, so as to convey one or two screws to the material picking station through the two material distribution slots.

[0010] Preferably, the turntable mechanism includes a turntable body and a turntable drive component. The ring-jointing mechanism is disposed on the turntable body. The turntable body is connected to the turntable drive component. The turntable drive component drives the turntable body to rotate so that the ring-jointing mechanism passes sequentially through the O-ring feeding station and the screw feeding station.

[0011] Preferably, the ring-jointing mechanism includes a loading plate, a ring-jointing assembly, a ring-expanding drive, and a ring-removing drive. The loading plate has a through-hole and a ring-expanding groove. The ring-expanding groove is located around the mounting hole and communicates with the mounting hole. The mounting hole is used to accommodate a screw. The ring-jointing assembly is disposed in the ring-expanding groove, and one end extends out of the ring-expanding groove in a direction away from the ring-expanding groove. The ring-expanding drive is used to drive the ring-jointing assembly to move in the ring-expanding groove in a direction away from the mounting hole to open the O-ring. The ring-removing drive is connected to the loading plate and drives the loading plate to reciprocate in a direction perpendicular to the ground to push the O-ring from the ring-jointing assembly onto the screw in the mounting hole.

[0012] Preferably, the ring assembly includes at least two ring grippers, at least two ring sliders, and a ring fixing block. One end of each of the at least two ring grippers is connected to one of the at least two ring sliders. The end of each ring gripper away from the ring slider extends in a direction away from the ring slider and passes through the ring expansion groove. The ring fixing block is provided with at least two ring sliding grooves, the direction of which is parallel to the ring expansion groove. At least two ring sliders are located in the at least two ring sliding grooves and slide in cooperation with the ring sliding grooves. The ring expansion drive is used to drive the ring sliders to slide in the ring sliding grooves.

[0013] Preferably, the ring expansion drive includes a ring expansion cylinder and a ring expansion push rod. One end of the ring expansion push rod is connected to the output end of the ring expansion cylinder, and the end of the push rod away from the ring expansion cylinder is tapered. A through hole is provided on the ring fixing block, and the through hole communicates with the ring sliding groove. The tapered end of the ring expansion push rod is inserted into the through hole.

[0014] Preferably, the uncoil driving component includes an uncoil cylinder and an uncoil push rod. One end of the uncoil push rod is connected to the output end of the uncoil cylinder, and the end away from the uncoil cylinder is connected to the loading plate, so as to push the loading plate to move in a direction perpendicular to the ground under the drive of the uncoil cylinder.

[0015] Preferably, the dual-cavity screw ring assembly further includes a detection mechanism and a feeding mechanism. The detection mechanism is located at the detection station and is used to detect the O-ring assembly with the screw. The feeding mechanism is located at the feeding station and is used to remove the screw with the O-ring completed from the O-ring mechanism.

[0016] Compared with the prior art, the dual-cavity screw ring device provided by this utility model has the following beneficial effects:

[0017] The quantity of O-rings conveyed to the picking station by the material distribution component in a single operation is matched with the corresponding quantity. One or two screws are then conveyed to the ring mechanism by the second picking component, thereby adjusting the number of assembly and realizing the adjustment of the number of screws assembled in a single operation according to assembly requirements. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of a dual-aperture screw ring device provided by this utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the O-ring feeding mechanism;

[0020] Figure 3 for Figure 1 A schematic diagram of the screw feeding mechanism;

[0021] Figure 4 for Figure 1 A schematic diagram of the turntable mechanism;

[0022] Figure 5 for Figure 1 A schematic diagram of the ring-tossing mechanism;

[0023] Figure 6 for Figure 5 Schematic diagram of the loading plate structure;

[0024] Figure 7 for Figure 5 Schematic diagram of the middle ring assembly;

[0025] Figure 8 for Figure 5 Schematic diagram of the structure of the expansion ring drive component;

[0026] Figure 9 for Figure 5 Schematic diagram of the disengagement drive component;

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. O-ring feeding mechanism; 11. First conveying assembly; 12. First picking platform; 13. First picking assembly; 131. Picking module; 132. Picking gripper; 2. Screw feeding mechanism; 21. Second conveying assembly; 22. Second picking platform; 24. Distributing assembly; 241. Feeding slide; 242. Distributing block; 2421. Distributing trough; 243. Distributing cylinder; 3. Turntable mechanism; 31. Turntable body; 32. Turntable drive component; 4. Ring-jointing mechanism; 41. Loading plate; 411. Assembly hole; 412. 413. Ring expansion groove; 42. Support rod; 421. Ring assembly; 421. Ring clamp; 4211. Support block; 4212. Connecting block; 422. Ring slide groove; 4221. Guide rail boss; 423. Ring fixing block; 4231. Ring slide groove; 4232. Through hole; 43. Ring expansion drive component; 431. Ring expansion cylinder; 432. Ring expansion push rod; 4321. Receiving hole; 4322. Inclined groove; 44. Ring release drive component; 441. Ring release cylinder; 442. Ring release push rod; 5. Detection mechanism; 6. Material feeding mechanism. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] Please see Figures 1-9This utility model provides a dual-cavity screw ring device, including an O-ring feeding mechanism 1, a screw feeding mechanism 2, a turntable mechanism 3, and a ring-ringing mechanism 4;

[0031] The screw feeding mechanism 2 includes a second conveying component 21, a second feeding platform 22, a second feeding component (not shown in the figure), and a distributing component 24. The second conveying component 22 is used to provide the screw and convey the screw to the second feeding platform 22. The distributing component 24 is used to push one or two screws to the feeding station.

[0032] The ring-flipping mechanism 4 is divided into at least two groups. At least two groups of ring-flipping mechanisms 4 are arranged circumferentially on the turntable mechanism 3. Each group of ring-flipping mechanisms 4 passes through the O-ring feeding station and the screw feeding station in sequence under the drive of the turntable mechanism 3. The number of ring-flipping mechanisms 4 in each group is two.

[0033] The second material handling component is used to transport the screw at the material handling station to the ring feeding mechanism 4 at the screw feeding station. The O-ring feeding mechanism 1 is used to transport the O-ring to the ring feeding mechanism 4 at the O-ring feeding station. Each ring feeding mechanism 4 is used to put the O-ring on the screw at the screw feeding station.

[0034] Specifically, firstly, the O-ring feeding mechanism 1 automatically feeds the O-rings to the ring-fitting mechanism 4 located at the O-ring feeding station on the turntable mechanism 3. Then, the turntable mechanism 3 rotates and feeds the ring-fitting mechanism 4 with the O-rings to the screw feeding station. Then, the screw feeding mechanism 2 feeds the screw to the ring-fitting mechanism 4. Finally, the ring-fitting mechanism 4 fits the O-rings onto the screw, completing the assembly of the screw and the O-rings.

[0035] It is understandable that the number of O-rings provided by the O-ring feeding mechanism 1 in a single operation is the same as the number of screws conveyed by the material distribution component 24 to the material picking station in a single operation. During the feeding process, the O-ring feeding mechanism 1 can transfer the O-rings from the O-ring feeding mechanism 1 to the ring-forming mechanism 4 with the help of any structure such as a robotic arm.

[0036] In one embodiment, the O-ring feeding mechanism 1 includes a first conveying component 11, a first picking platform 12, and a first picking component 13. The first conveying component 11 is used to provide O-rings and convey them to the first picking platform 12. The first picking component 13 is used to convey the O-rings from the first picking platform 12 to the ring-fitting mechanism 4.

[0037] Specifically, the first conveying component 11 is a combination of a vibratory plate and a linear vibrator. After the O-ring is placed in the vibratory plate, it is vibrated out from the vibratory plate onto the linear vibrator and then conveyed to the first material handling platform 12 by the linear vibrator.

[0038] It is understandable that the first conveying component 11 can also be any other structure, as long as it can convey the O-ring to the first picking table 12.

[0039] Furthermore, the first material handling component 13 includes a material handling module 131 and a material handling gripper 132. The material handling gripper 132 is connected to the material handling module 131. The material handling module 131 drives the material handling gripper 132 to clamp the O-ring at the first material handling platform onto the ring-jointing mechanism 4.

[0040] Understandably, the gripper 132 expands the O-ring by external support to grip it using friction. The gripping module 131 can have any structure, as long as it can drive the gripper 132.

[0041] In one embodiment, the material distribution assembly 24 includes a feeding slide 241, a material distribution block 242, and a material distribution cylinder 243. The feeding slide 241 is disposed at one end of the second conveying assembly 21. The material distribution block 242 is slidably connected to the feeding slide 241 and has two material distribution grooves 2421 disposed thereon. The material distribution cylinder 243 drives the material distribution block 242 to slide on the feeding slide 241, so that the two material distribution grooves 2421 pass through the second conveying assembly 21 in sequence, so as to convey one or two screws to the material picking station through the two material distribution grooves 2421.

[0042] Specifically, the second conveying component 21 can also be a combination of a vibratory feeder and a linear driver. After the screw is placed into the vibratory feeder, it vibrates out from the vibratory feeder onto the linear vibrator and is conveyed to the second material handling table 22 by the linear vibrator.

[0043] Understandably, the second conveying component 21 can also be any other mechanism, as long as it can convey the screw to the second picking platform 22. The second picking component can be any structure such as a robotic arm, as long as it can grasp the screw and convey it to the ring mechanism 4.

[0044] To illustrate with a specific example, when a screw needs to be transported to the picking station, the second conveying assembly 21 transports the screw to the picking platform 22. Then, the distributing cylinder 243 drives the distributing block 242 to slide on the distributing slide 241, so that the first distributing groove 2421 is positioned corresponding to the picking platform 22. At this point, the screw on the picking platform 22 can be pushed into the first distributing groove 2421 by any means, such as a push rod, a paddle, or manual pushing. Next, the distributing cylinder 243 continues to push the distributing block 242 to slide, causing the distributing groove 2421 to move along with the screw within it. This continues until the screw in the first distributing groove 2421 reaches the picking station. The second picking assembly can then remove the screw and transport it to one of the sets of ring-jointing mechanisms 4 at the screw loading station.

[0045] When the predetermined quantity is two, after the second conveying assembly 21 conveys the screw to the picking platform 22, the distributing cylinder 243 drives the distributing block 242 to slide on the distributing slide 241, so that the first distributing slot 2421 is located at the corresponding position on the picking platform 22. At this time, the screw on the picking platform 22 can be pushed into the first distributing slot 2421 by any means such as push rod, paddle, or manual pushing. Then, the distributing cylinder 243 continues to push the distributing block 242 to slide until the second distributing slot 2421 is located at the corresponding position on the picking platform 22, and repeats the above action of pushing the screw to push the screw from the picking platform 22 into the second distributing slot 2421. The distributing cylinder 243 pushes the distributing block 242 to slide again until the screws in both distributing slots 2421 have moved to the picking position. The second picking assembly can take out the two screws and convey them to the two ring mechanisms 4 at the screw loading position.

[0046] It should be noted that the spacing between the two material distribution slots 2421 must be compatible with the second material handling component, so that the second material handling component can remove the screws from both material distribution slots 2421 at once. The material handling station can be set on the moving path of the material distribution block 242, and the specific setting can be determined according to the sliding formation of the material distribution block 242 and the moving formation of the second material handling component, and is not limited here.

[0047] In one embodiment, the turntable mechanism 3 includes a turntable body 31 and a turntable drive 32. The ring-feeding mechanism 4 is disposed on the turntable body 31. The turntable body 31 is connected to the turntable drive 32. The turntable drive 32 drives the turntable body 31 to rotate so that the ring-feeding mechanism 4 passes through the O-ring feeding station and the screw feeding station in sequence.

[0048] In one embodiment, the ring-flipping mechanism 4 includes a loading plate 41, a ring-flipping assembly 42, a ring-expanding drive 43, and a ring-removing drive 44. The loading plate 41 has a through-hole assembly hole 411 and a ring-expanding groove 412. The ring-expanding groove 412 is located around the assembly hole 411 and communicates with the assembly hole 411. The assembly hole 411 is used to accommodate the screw.

[0049] The ring assembly 42 is disposed in the ring expansion groove 412, and one end extends out of the ring expansion groove 412 in a direction away from the ring expansion groove 412. The ring expansion drive 43 is used to drive the ring assembly 42 to move in the ring expansion groove 412 in a direction away from the mounting hole 411 to expand the O-ring.

[0050] The release drive 44 is connected to the loading plate 41 to drive the loading plate 41 to reciprocate in a direction perpendicular to the ground to push the O-ring from the ring assembly 42 onto the screw in the mounting hole 411.

[0051] Understandably, when assembling the screw and O-ring, the O-ring can first be placed on the end of the O-ring assembly 42 away from the loading plate 41. The O-ring assembly 42 is then moved away from the mounting hole 411 within the O-ring groove 412 by the O-ring expansion drive 43 to expand the O-ring. Next, the screw is inserted into the mounting hole 411, and then the O-ring release drive 44 drives the mounting plate 1 upward, pushing the O-ring off the O-ring assembly 42 so that the O-ring is fitted onto the screw, completing the assembly of the screw and O-ring.

[0052] It should be noted that the expansion ring drive component 43 can be of any structure, as long as it can drive the ring assembly 42 to slide within the expansion ring groove 412 to open the O-ring fitted on the end of the ring assembly 42 away from the loading plate 41.

[0053] When the release drive 44 drives the loading plate 41 to move away from the ground, it can push the O-ring off the ring assembly 1, thereby allowing the O-ring to be fitted onto the screw. To make the O-ring more easily detach from the ring assembly 42, a paddle can be provided on the loading plate 41. The specific setting is not limited, as long as the O-ring can be pushed off the ring assembly 42 when the loading plate 41 moves away from the ground.

[0054] In one embodiment, the expansion groove 412 is a cross groove, and the ring assembly 42 moves along the expansion groove 412 in four directions away from the mounting hole 411 to expand the O-ring.

[0055] It is understandable that expanding the O-ring requires support from at least two directions. However, support from only two directions can easily cause the O-ring to deform into an elliptical shape, interfering with the insertion of the screw into the mounting hole 411. Therefore, in this embodiment, the expansion groove 412 is provided with a cross groove, so that the O-ring assembly 42 supports the O-ring from four directions, ensuring that the screw can be smoothly inserted into the mounting hole 411.

[0056] It should be noted that the expansion groove 412 can also be any other shape, as long as the ring assembly 42 can slide inside it to expand the O-ring.

[0057] In one embodiment, the ring assembly 42 includes at least two ring grippers 421, at least two ring sliders 422, and a ring fixing block 423. One end of each of the at least two ring grippers 421 is connected to at least two ring sliders 422, and the other end, away from the ring sliders 422, extends in a direction away from the ring sliders 422 and passes through the ring expansion groove 412. The ring fixing block 423 is provided with at least two ring sliding grooves 4231, the direction of which is parallel to the ring expansion groove 412. At least two ring sliders 422 are located in at least two ring sliding grooves 4231 and slide in cooperation with the ring sliding grooves 4231. The ring expansion drive member 43 is used to drive the ring sliders 422 to slide in the ring sliding grooves 4231.

[0058] Understandably, the expansion ring drive 43 drives the ring slider 422 to slide back and forth in the ring groove 4231. The ring slider 422, through its connection with the ring clamp 421, drives the ring clamp 421 to move, so that one end of the ring clamp 421 passes through the expansion ring groove 412 and moves in the direction closer to or away from the mounting hole 411 in the expansion ring groove 412, so as to open the O-ring.

[0059] It should be noted that after the first material handling component 13 picks up the O-ring, it places the O-ring onto at least two ring clamping jaws 421. After the second material handling component picks up the screw, it places the screw between at least two ring clamping jaws 421.

[0060] Preferably, there are four ring clamps 421, four ring grooves 22, and four ring grooves 4231.

[0061] Furthermore, the ring clamp 421 includes a support block 4211 and a connecting block 4212. The connecting block 4212 is connected to the ring slider 422. The support block 4211 is connected to the end of the connecting block 4212 away from the ring slider 422 and is located inside the ring expansion groove 412, extending away from the connecting block 4212 to the outside of the ring expansion groove 412.

[0062] It is understandable that the support block 4211 is linked with the ring slider 422 through the connecting block 4212, so that it can move in the ring groove 412 under the drive of the ring expansion drive 43, so as to expand the O-ring.

[0063] Furthermore, a limiting boss is provided at the opening on the side away from the bottom of the ring groove 4231. The limiting boss is located on the sidewalls on opposite sides of the opening, and the limiting bosses on both sides extend toward each other. The shape of the ring slider 422 is adapted to the shape of the ring groove 4231 to limit the displacement of the ring slider 422 in the ring groove 4231 in the direction away from the bottom of the ring groove 4231.

[0064] It is understandable that by limiting the displacement of the ring slider 422 in the ring groove 4231 away from the bottom of the ring groove 4231 by the limiting boss, when the loading plate 41 moves away from the ring fixing block 423 under the drive of the ring release drive member 44, so as to push the O-ring off the support block 4211, it can be avoided that the O-ring drives the support block 4211 to move away from the ring groove 4231, thereby pulling the ring slider 422 out from the opening of the ring groove 4231 through linkage.

[0065] In one embodiment, the ring expansion drive 43 includes a ring expansion cylinder 431 and a ring expansion push rod 432. One end of the ring expansion push rod 432 is connected to the output end of the ring expansion cylinder 431, and the end away from the ring expansion cylinder 431 is tapered. A through hole 4232 is provided on the ring fixing block 423. The through hole 4232 communicates with the ring sliding groove 4231, and the tapered end of the ring expansion push rod 432 is inserted into the through hole 4232.

[0066] Understandably, after the O-ring is placed on the support block 4211 of the ring clamp 421, when the ring expansion cylinder 431 pushes the ring expansion push rod 432 to move towards the ring fixing block 423, the ring expansion push rod 432 squeezes the ring slider 422 in the ring groove 4231 in a direction away from the through hole 4232 through its conical end. This causes the support block 4211 to move in the ring expansion groove 412 in a direction away from the assembly hole 411, so as to use the support block 4211 to expand the O-ring and realize the ring expansion, so that the screw can be inserted into the assembly hole 411 later.

[0067] It should be noted that an elastic element can be provided on the ring slider 422, or an external force can be directly applied to the ring slider 422 in the direction of the through hole 4232, so that when the ring slider 422 expansion push rod 432 stops squeezing the ring slider 422, the ring slider 422 moves in the direction of the through hole 4232 under the action of elastic force or external force. That is, several support blocks 4211 move closer to each other so that the next O-ring can be fitted onto the support block 4211.

[0068] Furthermore, the tapered end of the expansion ring push rod 432 is provided with a receiving hole 4321, which is concentric with the assembly hole 411.

[0069] Understandably, the receiving hole 4321 is used to accommodate a long screw. When the screw is long, it can be inserted into both the mounting hole 411 and the receiving hole 4321 at the same time. The receiving hole 4321 can be used to ensure that the movement of the expansion ring push rod 432 does not interfere with the screw.

[0070] Furthermore, a groove 4322 is provided on the surface of the tapered end of the expansion ring push rod 432, and guide grooves are provided on the two side walls of the groove 4322. The side of the ring slider 422 close to the expansion ring push rod 432 is adapted to the shape of the groove 4322, and guide rail bosses 4221 are provided on the opposite sides of this side. The guide rail bosses 4221 slide in cooperation with the guide grooves.

[0071] It is understandable that the sliding engagement between the guide groove and the guide rail boss 4221 guides the sliding of the ring push rod 432 in the ring slide groove 4231.

[0072] In one embodiment, the uncoil drive 44 includes an uncoil cylinder 441 and an uncoil push rod 442. One end of the uncoil push rod 442 is connected to the output end of the uncoil cylinder 441, and the other end away from the uncoil cylinder 441 is connected to the loading plate 41 so as to push the loading plate 41 to move in a direction perpendicular to the ground under the drive of the uncoil cylinder 441.

[0073] In this embodiment, a support rod 413 is provided on the loading plate 41. The support rod 413 is slidably connected to the turntable body 31 to support the loading plate 41 and not interfere with the movement of the loading plate 41 driven by the uncoiling cylinder 441. The turntable body 31 is provided with a first driving hole and a second driving hole. The ring fixing block 423 of the ring assembly 42 is provided in the first driving hole, and the first driving hole and the through hole 4232 are concentric. The ring expanding push rod 432 of the ring expanding drive member 43 passes through the first driving hole and the through hole 4232 to squeeze the ring sliding block 422. The uncoiling cylinder 441 of the uncoiling drive member 44 is connected to the turntable body 31, and the uncoiling push rod 442 passes through the second driving hole.

[0074] In one embodiment, the dual-cavity screw ring assembly further includes a detection mechanism 5 and a feeding mechanism 6. The detection mechanism 5 is located at the detection station and is used to detect the assembly of the O-ring with the screw, that is, whether the O-ring is fitted into the groove of the screw. The feeding mechanism 6 is located at the feeding station and is used to remove the screw with the ring assembled from the ring assembly mechanism 4.

[0075] Understandably, the turntable body 31 drives each set of ring-loading mechanisms 4 to pass through the O-ring feeding station, screw feeding station, inspection station and unloading station in sequence.

[0076] It should be noted that the unloading mechanism 6 includes an unloading gripping component and a material bin. When the turntable body 31 rotates the assembled screw to the unloading station, the unloading gripping component picks up the screw and puts it into the material bin to complete the unloading. There are two material bins, and the material bins are equipped with sensors to detect whether the material bins are full.

[0077] The working principle of this utility model is as follows: In the initial state, the support blocks 4211 of the two ring-fitting mechanisms 4 in a set are respectively in a position close to each other. At this time, one or two O-rings are taken out and fitted onto the support blocks 4211 of the two ring-fitting mechanisms to complete the O-ring loading. Then, the ring-expanding cylinder 431 pushes the ring-expanding push rod 432 to move away from the ground. The inclined groove 4322 on the conical end of the ring-expanding push rod 432 pushes the ring-fitting slider 422 to move away from the through hole 4232. The ring-fitting slider 422 drives the support block 4211 to move away from the assembly hole 411 in the ring-expanding groove 412 through the connecting block 4212, so as to open the O-ring through the support block 4211. Then, the feeding assembly 24 conveys one or two screws to the picking station, and the second picking assembly places one or two screws into the assembly hole 411. The ring release cylinder 441 drives the loading plate 41 to move away from the ground to push the O-ring off the support block 4211, thereby allowing the O-ring to be fitted onto the screw, completing the assembly of the screw and the O-ring. After assembly, the inspection mechanism 5 determines whether the O-ring is in the screw groove by acquiring an image of the screw, and picks up the unqualified ones and puts them into the unqualified box. When the turntable body 31 rotates the assembled screw to the unloading station, the unloading gripping assembly picks up the screw and puts it into the material box, completing the unloading.

[0078] Compared with the prior art, the dual-cavity screw ring device provided by this utility model adapts the quantity of O-rings conveyed to the picking station by the material distribution component to match the corresponding quantity, so that one or two screws can be conveyed into the ring mechanism by the second picking component, thereby adjusting the number of assembly and realizing the adjustment of the number of screws assembled at one time according to the assembly requirements.

[0079] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A dual-aperture screw ring device for assembling O-rings onto a screw, characterized in that, include: O-ring feeding mechanism, screw feeding mechanism, turntable mechanism and ring feeding mechanism; The screw feeding mechanism includes a second conveying component, a second feeding platform, a second feeding component, and a distributing component. The second conveying component is used to provide the screw and convey the screw to the second feeding platform. The distributing component is used to push one or two screws to the feeding station. The ring-feeding mechanism is divided into at least two groups, and the at least two groups of ring-feeding mechanisms are arranged circumferentially on the turntable mechanism. Each group of ring-feeding mechanisms passes sequentially through the O-ring feeding station and the screw feeding station under the drive of the turntable mechanism, and the number of ring-feeding mechanisms in each group is two. The second material picking component is used to transport the screw at the material picking station to the ring-feeding mechanism at the screw feeding station. The O-ring feeding mechanism is used to transport the O-ring to the ring-feeding mechanism at the O-ring feeding station. Each group of ring-feeding mechanisms is used to put the O-ring onto the screw at the screw feeding station.

2. The dual-aperture screw ring device as described in claim 1, characterized in that: The O-ring feeding mechanism includes a first conveying component, a first picking platform, and a first picking component. The first conveying component is used to provide O-rings and convey the O-rings to the first picking platform. The first picking component is used to convey the O-rings from the first picking platform to the ring-feeding mechanism.

3. The dual-aperture screw ring device as described in claim 2, characterized in that: The first material handling component includes a material handling module and a material handling gripper. The material handling gripper is connected to the material handling module, and the material handling module drives the material handling gripper to clamp the O-ring at the first material handling platform onto the ring-jointing mechanism.

4. The dual-aperture screw ring device as described in claim 1, characterized in that: The material distribution assembly includes a feeding slide, a material distribution block, and a material distribution cylinder. The feeding slide is located at one end of the second conveying assembly. The material distribution block is slidably connected to the feeding slide and has two material distribution slots. The material distribution cylinder drives the material distribution block to slide on the feeding slide, so that the two material distribution slots pass through the second conveying assembly in sequence, so that one or two screws can be conveyed to the material picking station through the two material distribution slots.

5. The dual-aperture screw ring device as described in claim 1, characterized in that: The turntable mechanism includes a turntable body and a turntable drive component. The ring-jointing mechanism is disposed on the turntable body. The turntable body is connected to the turntable drive component. The turntable drive component drives the turntable body to rotate so that the ring-jointing mechanism passes sequentially through the O-ring feeding station and the screw feeding station.

6. The dual-aperture screw ring device as described in claim 1, characterized in that: The ring-flipping mechanism includes a loading plate, a ring-flipping assembly, a ring-expanding drive component, and a ring-removing drive component. The loading plate has a through-hole and a ring-expanding groove. The ring-expanding groove is located around the mounting hole and communicates with the mounting hole. The mounting hole is used to accommodate the screw. The ring assembly is disposed in the expansion groove, and one end extends out of the expansion groove in a direction away from the expansion groove. The expansion drive is used to drive the ring assembly to move in the expansion groove in a direction away from the mounting hole to expand the O-ring. The release drive is connected to the loading plate and drives the loading plate to reciprocate in a direction perpendicular to the ground to push the O-ring from the ring assembly onto the screw in the mounting hole.

7. The dual-aperture screw ring device as described in claim 6, characterized in that: The ring assembly includes at least two ring grippers, at least two ring sliders, and a ring fixing block. One end of each of the at least two ring grippers is connected to one of the at least two ring sliders. The end of each ring gripper away from the ring slider extends in a direction away from the ring slider and passes through the ring expansion groove. The ring fixing block is provided with at least two ring sliding grooves, the direction of which is parallel to the ring expansion groove. At least two ring sliders are located in the at least two ring sliding grooves and slide in cooperation with the ring sliding grooves. The ring expansion drive is used to drive the ring sliders to slide within the ring sliding grooves.

8. The dual-aperture screw ring device as described in claim 7, characterized in that: The ring expansion drive includes a ring expansion cylinder and a ring expansion push rod. One end of the ring expansion push rod is connected to the output end of the ring expansion cylinder, and the end away from the ring expansion cylinder is tapered. A through hole is provided on the ring fixing block, and the through hole communicates with the ring sliding groove. The tapered end of the ring expansion push rod is inserted into the through hole.

9. The dual-aperture screw ring device as described in claim 7, characterized in that: The uncoil drive includes an uncoil cylinder and an uncoil push rod. One end of the uncoil push rod is connected to the output end of the uncoil cylinder, and the other end away from the uncoil cylinder is connected to the loading plate, so as to push the loading plate to move in a direction perpendicular to the ground under the drive of the uncoil cylinder.

10. The dual-aperture screw ring device as described in claim 1, characterized in that: The dual-cavity screw ring assembly also includes a detection mechanism and a feeding mechanism. The detection mechanism is located at the detection station and is used to detect the O-ring assembly with the screw. The feeding mechanism is located at the feeding station and is used to remove the screw with the O-ring completed from the O-ring mechanism.

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