An auxiliary device for automated assembly of aerospace parts

Abstract

This invention discloses an auxiliary device for automated assembly of aerospace parts in the field of automated assembly technology. It includes a conveyor frame, with fixed frames fixedly connected to both sides of the front end of the conveyor frame. Feeding plates are slidably connected inside each of the two fixed frames. A material distribution and transport component is provided on the feeding plate. By employing this material distribution and transport component, when transporting parts installed inside pallets, it is not necessary to manually place stacked pallets onto the conveyor frame sequentially. Instead, multiple pallets are directly placed above the feeding plate and transported sequentially under the drive of the material distribution and transport component. Whether transporting the bottom pallet by the feeding plate or the top pallet by the connecting plate, the pallets slide slowly down the inclined wall, maintaining stability throughout the transport process. This achieves both automated pallet transport and ensures stability during pallet transport.

Description

Technical Field

[0001] This invention relates to the field of automated assembly technology, specifically to an auxiliary device for the automated assembly of aerospace parts. Background Technology

[0002] Automated assembly refers to an assembly technology that replaces manual labor with automated machinery. Automated assembly technology uses robots as assembly machinery and requires flexible peripheral equipment. During the assembly process, automated assembly can complete the following operations: part transfer, positioning and connection; fixing parts to each other by press fitting or fastening screws and nuts; assembly dimension control and ensuring the quality of part connection or fixing; conveying assembled parts or products and packaging or stacking them in containers, etc.

[0003] When automating the assembly of aerospace parts, the number of parts is large and the assembly is complex. When assembling small parts, in order to ensure the uniformity of the parts' positions, a pallet fixing method is often used. That is, multiple identical parts are placed inside a pallet and installed by a robotic arm. The pallets are stacked to save space. However, during installation, multiple pallets need to be manually placed one by one on the transport equipment for transportation. This placement method lacks automated auxiliary devices.

[0004] Based on this, the present invention designs an auxiliary device for automated assembly of aerospace parts, in order to solve the problem mentioned above that there is a lack of auxiliary devices for automated placement and transportation of parts held on pallets. Summary of the Invention

[0005] The purpose of this invention is to provide an auxiliary device for the automated assembly of aerospace parts, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an auxiliary device for automated assembly of aerospace parts, comprising a conveyor frame, wherein fixed frames are fixedly connected to both sides of the front end of the conveyor frame, and feeding plates are slidably connected inside the two fixed frames, and a material distribution and transportation component is provided on the feeding plate, the material distribution and transportation component being used to transport multi-layer parts in layers.

[0007] As a further embodiment of the present invention, the material distribution and transportation assembly includes a plug-in plate, which is slidably disposed inside the fixed frame. A first rack is embedded in the top of the feeding plate. A connecting plate is fixedly connected inside the fixed frame. A transmission gear for meshing with the first rack is rotatably connected to the right end of the connecting plate. A third rack that meshes with the transmission gear from above is fixedly connected to the bottom end of the plug-in plate.

[0008] As a further embodiment of the present invention, a second rack is provided at the left end of the third rack, a slider is fixedly connected to the top end of the second rack, a slide rod is fixedly connected inside the plug-in plate, the slider is slidably sleeved on the outside of the slide rod, a second spring for slider reset is sleeved on the slide rod, a feeding turntable is rotatably connected to the bottom right side of the plug-in plate, a ratchet is fixedly connected to the front end of the feeding turntable, a pawl that engages with the ratchet is slidably connected inside the plug-in plate, a first spring for pawl reset is fixedly connected inside the plug-in plate, a transmission frame is provided at the bottom of the plug-in plate, a sliding block for sliding connection with the plug-in plate is fixedly connected to the transmission frame, the rear end of the transmission frame is fixedly connected to the side wall of the second rack, a rotating block that can contact the ratchet is rotatably connected to the right end of the transmission frame, and a torsion spring for its reset is fixedly connected inside the rotating block.

[0009] As a further embodiment of the present invention, a support plate is fixedly connected to the front end of the fixing frame, a second driving cylinder is fixedly connected to the fixing frame, a fixing plate is fixedly connected to the output end of the second driving cylinder, a third driving cylinder is fixedly connected to the fixing plate, a clamping plate is provided on the right side of the fixing plate, and the output end of the third driving cylinder is fixedly connected to the clamping plate.

[0010] As a further embodiment of the present invention, a first driving cylinder is fixedly connected to the left end of the fixed frame, and the output end of the first driving cylinder is fixedly connected to the side wall of the feeding plate.

[0011] As a further embodiment of the present invention, the feeding plate is provided with a groove for docking with the feeding turntable, and both the plug-in plate and the right side wall of the feeding plate are smooth inclined walls.

[0012] As a further embodiment of the present invention, the plane containing the upper surface of the support plate is at the same horizontal plane as the upper surface of the feeding plate, and a groove is provided at the rear end of the support plate.

[0013] As a further embodiment of the present invention, a connecting strip is fixedly connected to the front end of the pawl, the front end of the connecting strip passes through the plug plate and is disposed in front of the plug plate, and an inclined protrusion is fixedly connected inside the fixing frame.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. This invention employs a material distribution and transportation component. When transporting parts installed inside pallets, it eliminates the need to manually place stacked pallets onto the conveyor frame sequentially. Instead, multiple pallets are placed directly above the feeding plate and transported sequentially under the drive of the material distribution and transportation component. Whether transporting the bottom pallet from the feeding plate or the top pallet from the connecting plate, the pallets slide slowly down the inclined wall, maintaining stability throughout the transportation process. This prevents pallets from falling from the feeding plate onto the conveyor frame or directly from the top of the connecting plate onto the top of the feeding plate. The impact force of such an impact would alter the orientation of the parts inside the pallet, causing problems with proper alignment when the robotic arm picks them up. This method of transportation fundamentally solves the problem of pallets falling directly, achieving both automated pallet transportation and ensuring stability during transport. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 A schematic diagram of the structure of the clamping plate, the second drive cylinder, the fixing plate, and the third drive cylinder;

[0018] Figure 3 This is a schematic diagram of the fixed frame structure;

[0019] Figure 4 This is a schematic diagram of the material distribution and transportation component structure;

[0020] Figure 5 This is a schematic diagram of the feeding plate structure;

[0021] Figure 6 This is a schematic diagram of the bottom structure of the plug-in board;

[0022] Figure 7 Experimental question: Partial cross-sectional structure of the front side of the plug-in plate;

[0023] Figure 8 for Figure 7 Enlarged structural diagram at point A in the middle;

[0024] Figure 9 This is a schematic diagram of a partial cross-sectional view of the left side of the connector plate;

[0025] Figure 10 for Figure 9 Enlarged structural diagram at point B.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Conveyor frame; 2. Support plate; 3. Fixing frame; 4. Feeding plate; 5. Clamping plate; 6. First drive cylinder; 7. Second drive cylinder; 8. Fixing plate; 9. Third drive cylinder; 10. Insert plate; 11. Connecting plate; 12. Groove; 13. Transmission gear; 14. First rack; 15. Transmission frame; 16. Sliding block; 17. Second rack; 18. Third rack; 19. Feeding turntable; 20. First spring; 21. Pawl; 22. Connecting bar; 23. Rotating block; 24. Ratchet; 25. Slider; 26. Slide bar; 27. Second spring. Detailed Implementation

[0028] Please see Figure 1-10 The present invention provides a technical solution: an auxiliary device for automated assembly of aerospace parts, including a conveyor frame 1, with fixed frames 3 fixedly connected to both sides of the front end of the conveyor frame 1, and feeding plates 4 slidably connected inside the two fixed frames 3, with a material distribution and transportation component provided on the feeding plate 4, the material distribution and transportation component being used to transport multi-layer parts in layers.

[0029] When the above solution is put into practical use, during the automated assembly of parts, the pallets containing the parts are stacked together and placed on top of the feeding plate 4. The feeding plates 4 on both sides retract into the fixed frame 3, while the material distribution and transportation components are inserted into the pallets for support. This causes the bottom pallet to gradually detach from the feeding plate 4 until it contacts the conveyor frame 1 and is then transported by the conveyor frame 1. The upper pallets are supported by the extended material distribution and transportation components. After the bottom pallet has been transported by the conveyor frame 1, the feeding plate 4 is reset, and the material distribution and transportation components retract into the fixed frame 3, causing the pallets to detach from the material distribution and transportation components and fall back onto the feeding plate 4 for support. This process is repeated to transport all the pallets sequentially through the conveyor frame 1. The purpose of this is to eliminate the need to manually place the stacked pallets onto the conveyor frame 1 sequentially when transporting parts installed inside the pallets. Instead, multiple pallets are placed directly on top of the feeding plate 4 and transported sequentially by the material distribution and transportation components.

[0030] As a further embodiment of the present invention, the material conveying assembly includes a plug-in plate 10, which is slidably disposed inside a fixed frame 3. A first rack 14 is embedded in the top of the feeding plate 4. A connecting plate 11 is fixedly connected inside the fixed frame 3. A transmission gear 13 for meshing with the first rack 14 is rotatably connected to the right end of the connecting plate 11. A third rack 18 that meshes with the transmission gear 13 from above is fixedly connected to the bottom end of the plug-in plate 10. A second rack 17 is disposed at the left end of the third rack 18. A slider 25 is fixedly connected to the top end of the second rack 17. A sliding rod 26 is fixedly connected inside the plug-in plate 10. The slider 25 is slidably sleeved on the outside of the sliding rod 26. A second spring 27 for resetting the slider 25 is sleeved on the sliding rod 26. A feeding turntable 19 is rotatably connected to the bottom right side of the plug-in plate 10. A ratchet 24 is fixedly connected to the front end of the feeding turntable 19. A pawl 21 that engages with the ratchet 24 is slidably connected inside the plug-in plate 10. The insert plate 10 has a first spring 20 fixedly connected inside for resetting the pawl 21. The bottom of the insert plate 10 is provided with a transmission frame 15. The transmission frame 15 has a sliding block 16 fixedly connected to it for sliding connection with the insert plate 10. The rear end of the transmission frame 15 is fixedly connected to the side wall of the second rack 17. The right end of the transmission frame 15 is rotatably connected to a rotating block 23 that can contact the ratchet 24. The rotating block 23 has a torsion spring fixedly connected inside for resetting. The left end of the fixed frame 3 is fixedly connected to a first driving cylinder 6. The output end of the first driving cylinder 6 is fixedly connected to the side wall of the feeding plate 4. The feeding plate 4 has a groove 12 for docking with the feeding turntable 19. The right side walls of the insert plate 10 and the feeding plate 4 are smooth inclined walls. The front end of the pawl 21 is fixedly connected to a connecting strip 22. The front end of the connecting strip 22 passes through the insert plate 10 and is located in front of the insert plate 10. The fixed frame 3 has an inclined protrusion fixedly connected inside.

[0031] When the above scheme is put into actual use, when the first drive cylinder 6 drives the feeding plate 4 to retract into the fixed frame 3, the first rack 14 inside the top of the feeding plate 4 will drive the transmission gear 13 to rotate. The rotation of the transmission gear 13 will drive the third rack 18 to rotate. The third rack 18 will drive the plug plate 10 to slide outward of the fixed frame 3. When the feeding plate 4 retracts into the fixed frame 3, the plug plate 10 gradually extends outward. The distance between the plug plate 10 and the top of the feeding plate 4 is exactly the thickness of the tray. The tray is generally made of soft plastic, so that the plug plate 10 can be directly inserted into the tray. The bottom tray is supported by the feeding plate 4, while the upper trays are all supported by the plug plate 10.

[0032] As the feeding plate 4 continues to slide, the pallet gradually comes into contact with the inclined surface of the feeding plate 4, and the pallet gradually slides down the inclined surface until the pallet completely detaches from the contact with the feeding plate 4, so that the feeding plate 4 falls on the conveyor frame 1 and is transported with the conveyor frame 1.

[0033] During the sliding process, the feeding plate 4 drives the insertion plate 10 to slide through the meshing of the transmission gear 13 and the third rack 18. When the insertion plate 10 slides to the position where the third rack 18 disengages from the transmission gear 13, i.e., the second rack 17 is engaged with the transmission gear 13, since the second rack 17 is slidably positioned at the bottom of the insertion plate 10 and there is a gap between the second rack 17 and the third rack 18, when the transmission gear 13 drives the second rack 17 to slide, the second rack 17 will compress the second spring 27 and drive the transmission frame 15 to slide. The transmission frame 15 drives the ratchet 24 to rotate through the rotating block 23 at the right end. When the second rack 17 slides to the position where it engages with the transmission gear 13, the second rack 17 will compress the second spring 27 and drive the transmission frame 15 to slide. The transmission frame 15 drives the ratchet 24 to rotate through the rotating block 23 at the right end. When the drive gear 13 disengages, the second rack 17 will be reset under the elastic force of the second spring 27. Then the drive gear 13 continues to rotate and meshes with the second rack 17, causing the second rack 17 to drive the feeding plate 19 to reciprocate. The ratchet 24 is driven to rotate gradually through the rotating block 23. Due to the limiting effect of the pawl 21, the feeding plate 19 rotates gradually with the ratchet 24 and will not reset. The feeding plate 19 rotates gradually along the groove 12 to a position horizontal to the inclined surface of the feeding plate 4. When the feeding plate 19 rotates to a position horizontal to the plane where the inclined surface of the feeding plate 4 is located, the feeding plate 4 has also completed the transportation of the pallet.

[0034] At this time, the first drive cylinder 6 drives the feeding plate 4 to reset. The feeding plate 4 slides to the outside of the fixed frame 3. The first rack 14 drives the transmission gear 13 to rotate. The rotation of the transmission gear 13 drives the second rack 17 to slide. Due to the sliding in the opposite direction, the second rack 17 can no longer slide at the bottom of the insertion plate 10. The second rack 17 drives the insertion plate 10 to slide together. When the transmission gear 13 disengages from the second rack 17 and meshes with the third rack 18, it also drives the insertion plate 10 to slide. In this way, the tray on the insertion plate 10 will gradually slide along the inclined wall of the feeding turntable 19 to the top of the feeding plate 4.

[0035] As the connector plate 10 gradually slides into the fixed frame 3 and the pallet has moved onto the feeding plate 4, the connecting strip 22 on the connector plate 10 gradually slides to the position where it contacts the protrusion inside the fixed frame 3. As it slides, it gradually slides upwards along the protrusion, causing the connecting strip 22 to drive the pawl 21 to slide upwards synchronously. A strong spring for resetting the feeding turntable 19 is fixedly connected to the bottom of the connector plate 10. When the pawl 21 disengages from the ratchet 24, the strong spring will drive the feeding turntable 19 to reset, thus completing one pallet transfer cycle. The advantage of this is that, regardless of whether the feeding plate 4 is on the pallet... The transport of the bottom pallet and the transport of the top pallet from the connector plate 10 are both carried out by the pallets slowly sliding down the inclined wall. The pallets remain stable throughout the transport process to prevent them from falling from the feeding plate 4 onto the conveyor frame 1 or from falling directly from the top of the connector plate 10 onto the top of the feeding plate 4. The impact force of the impact would change the orientation of the parts inside the pallet, which would cause problems with the alignment of the parts when the robotic arm picks them up. This method of transport can fundamentally solve the problem of the pallet falling directly, thus achieving automatic pallet transport and ensuring the stability of the pallet during transport.

[0036] As a further embodiment of the present invention, a support plate 2 is fixedly connected to the front end of the fixing frame 3, a second driving cylinder 7 is fixedly connected to the fixing frame 3, a fixing plate 8 is fixedly connected to the output end of the second driving cylinder 7, a third driving cylinder 9 is fixedly connected to the fixing plate 8, a clamping plate 5 is provided on the right side of the fixing plate 8, and the output end of the third driving cylinder 9 is fixedly connected to the clamping plate 5.

[0037] When the above solution is put into actual use, when the stacked pallets are placed on the feeding plate 4, the pallets are first placed on the support plate 2. The third drive cylinder 9 is started to clamp and align the pallets through the clamping plates 5 on both sides. Then the second drive cylinder 7 is started to drive the clamping plates 5 to slide, and the pallets are slid from the support plate 2 to the feeding plate 4, thereby completing the loading of the pallets.

[0038] As a further embodiment of the present invention, the plane on which the upper end face of the support plate 2 is located is at the same horizontal plane as the upper end face of the feeding plate 4, and a groove is provided at the rear end of the support plate 2;

[0039] When the above scheme is put into actual use, the fact that they are on the same plane allows for direct horizontal transportation. The groove on the back side of the support plate 2 creates a certain gap between the support plate 2 and the feeding plate 4, ensuring that the pallet can be completely detached from the support plate 2 after the material is pushed.

[0040] Working principle: The pallet is placed above the support plate 2. The third drive cylinder 9 is activated to clamp and align the pallet using the clamping plates 5 on both sides. Then, the second drive cylinder 7 is activated to slide the clamping plates 5, moving the pallet from the support plate 2 to above the feeding plate 4. When the first drive cylinder 6 moves the feeding plate 4 back into the fixed frame 3, the first rack 14 inside the top of the feeding plate 4 drives the transmission gear 13 to rotate. The rotation of the transmission gear 13 in turn drives the third rack 18 to rotate, which in turn drives the insertion plate 10 to slide outward from the fixed frame 3. As the feeding plate 4 retracts into the fixed frame 3, the insertion plate 10 gradually extends outward. The distance between the insertion plate 10 and the top of the feeding plate 4 is exactly the thickness of the pallet. The pallet is generally made of soft plastic. The material is designed so that the insert plate 10 can be directly inserted into the tray. The bottom tray is supported by the feeding plate 4, while the upper trays are all supported by the insert plate 10. As the feeding plate 4 continues to slide, the tray gradually contacts the inclined surface of the feeding plate 4, causing the tray to gradually slide down the inclined surface until the tray completely disengages from the feeding plate 4. The feeding plate 4 then falls above the conveyor frame 1 and is transported with the conveyor frame 1. During the sliding process, the feeding plate 4 drives the insert plate 10 to slide through the meshing of the transmission gear 13 and the third rack 18. When the insert plate 10 slides to the position where the third rack 18 disengages from the transmission gear 13, i.e., the second rack 17 engages with the transmission gear 13, the second rack 17 is slidably positioned at the bottom of the insert plate 10, and... There is a gap between the second rack 17 and the third rack 18. When the transmission gear 13 drives the second rack 17 to slide, the second rack 17 will compress the second spring 27 and drive the transmission frame 15 to slide. The transmission frame 15 drives the ratchet 24 to rotate through the rotating block 23 at the right end. When the second rack 17 slides to the position where it is disengaged from the transmission gear 13, it will be driven to reset by the elastic force of the second spring 27. Then the transmission gear 13 continues to rotate and mesh with the second rack 17, so that the second rack 17 drives the feeding plate 19 to reciprocate. The rotating block 23 drives the ratchet 24 to rotate gradually. Due to the limiting effect of the pawl 21, the feeding plate 19 rotates gradually with the ratchet 24 and will not reset. The feeding plate 19 moves along... The groove 12 gradually rotates to a position horizontal with the inclined surface of the feeding plate 4. When the feeding turntable 19 rotates to a position horizontal with the plane containing the inclined surface of the feeding plate 4, the feeding plate 4 has completed the transport of the pallet. At this time, the first drive cylinder 6 drives the feeding plate 4 to reset. The feeding plate 4 then slides outwards towards the fixed frame 3, driving the transmission gear 13 to rotate via the first rack 14. The rotation of the transmission gear 13 drives the second rack 17 to slide. Due to the sliding in the opposite direction, the second rack 17 can no longer slide at the bottom of the insertion plate 10, causing the second rack 17 to slide along with the insertion plate 10. When the transmission gear 13 disengages from the second rack 17 and engages with the third rack 18, it also drives the insertion plate 10 to slide. Thus, the pallet on the insertion plate 10...The feed plate 10 will gradually slide along the inclined wall of the feed turntable 19 to the top of the feed plate 4. As the insert plate 10 gradually slides into the fixed frame 3 and the tray has moved onto the feed plate 4, the connecting strip 22 on the insert plate 10 will gradually slide to the position where it contacts the protrusion inside the fixed frame 3. With this sliding motion, it will gradually slide upwards along the protrusion, causing the connecting strip 22 to drive the pawl 21 to slide upwards synchronously. A strong spring for resetting the feed turntable 19 is fixedly connected to the bottom of the insert plate 10. When the pawl 21 disengages from the ratchet 24, the strong spring will drive the feed turntable 19 to reset.

Claims

1. An auxiliary device for automated assembly of aerospace parts, comprising a conveyor frame (1), characterized in that: The front sides of the conveyor frame (1) are respectively fixedly connected to the fixed frame (3), and the two fixed frames (3) are respectively slidably connected to the feeding plate (4). The feeding plate (4) is provided with a material distribution and transportation component, which is used to transport multi-layer parts in layers. The material distribution and transportation assembly includes a plug plate (10), which is slidably disposed inside the fixed frame (3). A first rack (14) is embedded in the top of the feeding plate (4). A connecting plate (11) is fixedly connected inside the fixed frame (3). A transmission gear (13) for meshing with the first rack (14) is rotatably connected to the right end of the connecting plate (11). A third rack (18) that meshes with the transmission gear (13) from above is fixedly connected to the bottom end of the plug plate (10). The third rack (18) has a second rack (17) at its left end. A slider (25) is fixedly connected to the top of the second rack (17). A slide rod (26) is fixedly connected inside the plug plate (10). The slider (25) is slidably sleeved on the outside of the slide rod (26). A second spring (27) for resetting the slider (25) is sleeved on the slide rod (26). A feeding turntable (19) is rotatably connected to the bottom right side of the plug plate (10). A ratchet (24) is fixedly connected to the front end of the feeding turntable (19). A ratchet (24) is slidably connected inside the plug plate (10) to the ratchet (25). 24) The pawl (21) is connected to the plug plate (10). A first spring (20) for resetting the pawl (21) is fixedly connected inside the plug plate (10). A transmission frame (15) is provided at the bottom of the plug plate (10). A sliding block (16) for sliding connection with the plug plate (10) is fixedly connected on the transmission frame (15). The rear end of the transmission frame (15) is fixedly connected to the side wall of the second rack (17). A rotating block (23) that can contact the ratchet (24) is rotatably connected to the right end of the transmission frame (15). A torsion spring for resetting the rotating block (23) is fixedly connected inside the rotating block (23).

2. The auxiliary device for automated assembly of aerospace parts according to claim 1, characterized in that: The front end of the fixed frame (3) is fixedly connected to a support plate (2), a second drive cylinder (7) is fixedly connected to the fixed frame (3), a fixed plate (8) is fixedly connected to the output end of the second drive cylinder (7), a third drive cylinder (9) is fixedly connected to the fixed plate (8), a clamping plate (5) is provided on the right side of the fixed plate (8), and the output end of the third drive cylinder (9) is fixedly connected to the clamping plate (5).

3. The auxiliary device for automated assembly of aerospace parts according to claim 1, characterized in that: The left end of the fixed frame (3) is fixedly connected to the first driving cylinder (6), and the output end of the first driving cylinder (6) is fixedly connected to the side wall of the feeding plate (4).

4. The auxiliary device for automated assembly of aerospace parts according to claim 1, characterized in that: The feeding plate (4) has a groove (12) for docking with the feeding turntable (19), and the right side wall of the plug plate (10) and the feeding plate (4) are both smooth inclined walls.

5. An auxiliary device for automated assembly of aerospace parts according to claim 2, characterized in that: The plane on the upper surface of the support plate (2) is at the same level as the upper surface of the feeding plate (4), and a groove is provided at the rear end of the support plate (2).

6. The auxiliary device for automated assembly of aerospace parts according to claim 1, characterized in that: The front end of the pawl (21) is fixedly connected to a connecting strip (22), the front end of the connecting strip (22) passes through the plug plate (10) and is located in front of the plug plate (10), and the fixed frame (3) is fixedly connected to an inclined protrusion.

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