Automatic turnover device for coating workpiece barrel

Abstract

The utility model discloses an automatic turnover device for a coating workpiece barrel, which comprises a rack, a workpiece barrel is arranged in the rack, a plurality of workpiece frames capable of freely rotating by 180 degrees are hung on the outer wall of the workpiece barrel, workpieces are hung in the workpiece frames, and the bottom ends of the workpiece frames penetrate through the bottom of the workpiece barrel and are connected with first clamping seats; a top motor capable of enabling the workpiece barrels to rotate is arranged on the top of the machine frame, three sets of power rotating mechanisms are arranged at the bottom of the machine frame, and under rotation of the top motor, any three adjacent workpiece frames can freely turn over through the corresponding sets of power rotating mechanisms. According to the utility model, the coating of two surfaces is continuously completed after one-time vacuumizing, so that the treatment time is greatly saved, the movement of a workpiece in the coating process is reduced, and the pollution and pause caused by intermediate steps are avoided, thereby improving the efficiency and quality of the whole production process, and being suitable for being widely applied to the production of optical parts.

Description

Technical Field

[0001] This utility model relates to the field of lens coating production technology, specifically to an automatic flipping device for coated workpiece barrels. Background Technology

[0002] In the coating process of optical components, many key components, such as cut-off filters and beam splitters, require coatings on both surfaces to meet specific optical performance requirements. For example, lenses typically require anti-reflective coatings on both surfaces to ensure good image quality and high transmittance. The traditional coating method involves placing the component in a sputtering chamber, depositing a film on one side, removing it, and then placing it back in for the other side. While this method achieves the coating requirements, it is time-consuming and inefficient. Specifically, each coating process requires removing the component from the fixture, performing vacuuming, and heating, a process that takes at least an hour, or even longer, especially for large components. Repeating this process to complete the coating of each component often takes several hours, significantly impacting production efficiency. Designing a device that can coat both sides of an optical component in a single vacuuming operation would significantly improve coating efficiency and production line efficiency. Utility Model Content

[0003] To meet the above technical requirements, the purpose of this utility model is to provide an automatic flipping device for coated workpiece barrels. This device can complete the coating of two surfaces continuously after one vacuuming, which greatly saves processing time, reduces the movement of workpieces during the coating process, avoids pollution and downtime caused by intermediate steps, and thus improves the efficiency and quality of the overall production process. It is suitable for widespread application in the production of optical parts.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an automatic flipping device for coated workpiece barrels, comprising a frame, a workpiece barrel inside the frame, multiple workpiece frames capable of rotating freely by 180 degrees hanging on the outer wall of the workpiece barrel, workpieces hanging inside the workpiece frames, and a first retaining seat connected to the bottom of the workpiece frame passing through the bottom of the workpiece barrel; a top motor capable of rotating the workpiece barrel is provided at the top of the frame, and three sets of power rotation mechanisms are respectively provided at the bottom of the frame. Under the rotation of the top motor, any three adjacent workpiece frames can be freely flipped through their respective sets of power rotation mechanisms; the power rotation mechanism includes a lifting cylinder, a bottom motor, and a... A support base is provided for the lifting cylinder and the bottom motor. The top of the cylinder rod of the lifting cylinder is equipped with a universal structure. From bottom to top, a first gear and a second bracket that can match and engage with the first bracket are sequentially fitted onto the outside of the universal structure. The output end of the base motor is equipped with a second gear that meshes with the first gear. The cylinder rod of the lifting cylinder extends to engage the first bracket and the second bracket. The bottom motor sequentially drives the second gear, the first gear, and the universal structure to rotate, which can sequentially satisfy the free rotation of three workpiece frames by 180 degrees. The outer wall of the workpiece barrel is set to movably hang a workpiece frames. When the top motor works, it drives the workpiece barrel to rotate by an angle of 360 / a each time.

[0005] Furthermore, the universal structure includes a universal coupling connected to the top of the cylinder rod of the lifting cylinder and a universal shaft connected to the universal coupling. Under the action of external force, the universal shaft can rotate freely on the universal coupling. The first gear and the second locator are sleeved on the outer wall of the universal shaft from bottom to top. A sleeve is also movably sleeved on the outer wall of the universal shaft between the first gear and the second locator. A support plate and a fixed plate are respectively fixedly sleeved on the outside of the sleeve. The support plate is connected to the support seat by a tie rod, and the fixed plate is fixed to the bottom surface of the frame. A connecting column is also provided at the top of the universal shaft, and the second locator is set on the universal shaft close to the connecting column.

[0006] The workpiece barrel consists of a top plate, a bottom plate, and several workpiece frames located between the top and bottom plates. Each workpiece frame has a rotating shaft at both its upper and lower ends, which can rotate freely on the top and bottom plates respectively. The first clamping seat is sleeved on the rotating shaft located at the bottom of the workpiece frame. The end of the rotating shaft is also provided with a slot for matching and connecting to the connecting column. Several connecting supports are also provided between the top and bottom plates inside the workpiece barrel. The output end of the top motor passes through the top of the frame and connects to the top plate of the workpiece barrel.

[0007] The top of the frame is also equipped with a positioning cylinder. Positioning holes are evenly distributed on the surface of the top plate near each workpiece frame. When the workpiece frame is flipped, the cylinder rod of the positioning cylinder passes through the top of the frame and extends into the positioning hole to fulfill the positioning function.

[0008] Each lifting cylinder and bottom motor in the power rotation mechanism can work independently.

[0009] This utility model is used for the coating process of workpieces. The workpieces are hung in the workpiece frame and both sides of the workpieces need to be coated. In actual work, after coating one side of all the workpieces in the workpiece frame, they need to be flipped over and coated on the other side. This utility model meets the above technical requirements.

[0010] In practical work, since the distance between each workpiece frame is small, when flipping a workpiece in any workpiece frame, it is necessary to first rotate the two adjacent workpiece frames of the workpiece frame 90 degrees clockwise, then rotate the middle workpiece frame 180 degrees, and then flip the two adjacent workpiece frames 90 degrees to restore the original state. This method is used to flip each workpiece 180 degrees.

[0011] The specific working process is as follows: When the outer surface of the workpiece on the workpiece barrel is coated, the workpiece corresponding to the upper part of the middle power rotation mechanism is selected as the first workpiece to be flipped. The cylinder rod of the positioning cylinder at the top of the frame extends and is inserted into the positioning hole below the cylinder rod, which plays a positioning role for the entire workpiece barrel. The lifting cylinder in the three power rotation mechanisms is started until the connecting column on the universal joint is connected to the slot. Then the bottom motors on both sides are started, and the second gear and the first gear mesh and drive. At this time, the second chuck and the first chuck mesh together under the action of rotational force, which starts to drive the two adjacent workpiece frames of the workpiece to be flipped to rotate clockwise until they rotate 90 degrees. After completion, the middle bottom motor is started and rotated 180 degrees clockwise according to the above principle, so that the workpiece to be flipped completes a 180-degree flip. At this time, the bottom motors on both sides rotate 90 degrees counterclockwise, so that the two adjacent workpieces return to their original positions.

[0012] After the flipping is completed, the positioning cylinder rod retracts, and the top motor rotates 18 degrees. One of the two original adjacent workpieces becomes the new workpiece to be flipped, while the workpiece that has already been flipped becomes the adjacent workpiece of the new workpiece to be flipped. According to the above working principle, the two adjacent workpieces are rotated 90 degrees clockwise, and then the new workpiece to be flipped is flipped 180 degrees. The workpieces on both sides are then rotated 90 degrees to return to their original positions. In this way, all the workpieces are flipped 180 degrees in sequence, and then the coating is performed.

[0013] Before the top motor rotates 360° / a each time, the cylinder rod of the positioning cylinder needs to retract; after the top motor rotates 360° / a each time, the cylinder rod of the positioning cylinder begins to extend.

[0014] The beneficial effects of this invention are as follows: For each workpiece, it ensures that the surface is flipped under vacuum, preventing the entry of oxygen and other gases during the coating process, thus guaranteeing the quality of the coating layer; the workpiece cylinder is used to load multiple surfaces for simultaneous coating, improving equipment utilization and production efficiency; by continuously completing the coating of two surfaces after one vacuuming, this device greatly saves processing time, reduces workpiece movement during the coating process, and avoids contamination and downtime caused by intermediate steps, thereby improving the efficiency and quality of the overall production process, and is suitable for widespread application in the production of optical components. Attached Figure Description

[0015] The structure and features of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 yes Figure 1 A schematic diagram of the structure from another direction.

[0018] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.

[0019] Figure 4 yes Figure 1 A schematic diagram of the structure from another direction.

[0020] Figure 5 yes Figure 4 Enlarged view of the top of the machine frame and the top of the workpiece barrel.

[0021] Figure 6 yes Figure 1 A schematic diagram of the structure after removing the bottom of the rack.

[0022] Figure 7 yes Figure 6 A partially enlarged schematic diagram of the central power rotation mechanism and the bottom of the workpiece barrel.

[0023] Figure 8 This is a flowchart illustrating the process of rotating a workpiece by 180 degrees in this utility model.

[0024] Figure 9 This is a plan view of the power rotation mechanism in this utility model.

[0025] Appendix Figure 1-9In the middle, 1. Frame; 2. Positioning cylinder; 3. Top motor; 4. Workpiece barrel; 5. Power rotation mechanism; 6. Rotating shaft; 7. Workpiece; 8. Workpiece frame; 9. Connecting support; 10. Cylinder rod of positioning cylinder; 11. First clamping seat; 12. Support seat; 13. Bottom motor; 14. Lifting cylinder; 15. First gear; 16. Second gear; 17. Sleeve; 18. Second clamping seat; 19. Fixing plate; 20. Support plate; 21. Positioning hole; 22. Tie rod; 23. Universal coupling; 24. Universal shaft; 25. Connecting column. Detailed Implementation

[0026] Appendix Figure 1-9 This is one embodiment of the present invention, disclosing an automatic flipping device for a coated workpiece barrel 4, including a frame 1, inside which a workpiece barrel 4 is disposed, and 20 workpiece frames 7 capable of rotating freely by 180 degrees are hung on the outer wall of the workpiece barrel 4, with workpieces 7 hanging inside the workpiece frames 7, and the bottom end of the workpiece frames 7 passing through the bottom of the workpiece barrel 4 and connected to a first card seat 11; a top motor 3 capable of rotating the workpiece barrel 4 is provided at the top of the frame 1, and three sets of power rotation mechanisms 5 are respectively provided at the bottom of the frame 1. Under the rotation of the top motor 3, any three adjacent workpiece frames 7 can be freely flipped by their respective sets of power rotation mechanisms 5; the power rotation mechanism 5 includes a lifting cylinder 14, a bottom motor 13, and a device for placing the lifting cylinder 14. The bottom motor 13 has a support base 12, and the top of the cylinder rod of the lifting cylinder 14 is provided with a universal structure. The universal structure is fitted with a first gear 15 and a second card seat 18 that can match and engage with the first card seat 11 from bottom to top. The output end of the base motor is provided with a second gear 16 that meshes with the first gear 15. The cylinder rod of the lifting cylinder 14 extends to make the first card seat 11 and the second card seat 18 mesh together. The bottom motor 13 drives the second gear 16, the first gear 15 and the universal structure to rotate in sequence, which can satisfy the three workpiece frames 7 to rotate freely 180 degrees in sequence. If 20 workpiece frames 7 are movably hung on the outer wall of the workpiece barrel 4, then the top motor 3 drives the workpiece barrel 4 to rotate by 18 degrees each time it works.

[0027] In practical operation, since the distance between each workpiece frame 7 is small, when flipping any workpiece 7 in any workpiece frame 7, it is necessary to first rotate the two adjacent workpiece frames 7 clockwise by 90 degrees, then rotate the middle workpiece frame 7 by 180 degrees, and then flip the two adjacent workpiece frames 7 by 90 degrees to restore the original state. The workpiece 7 is flipped 180 degrees one by one in this way. Each lifting cylinder 14 and bottom motor 13 in the power rotation mechanism 5 can work independently.

[0028] The universal joint structure includes a universal coupling 23 connected to the top of the cylinder rod of the lifting cylinder 14 and a universal shaft 24 connected to the universal coupling 23. Under the action of external force, the universal shaft 24 can rotate freely on the universal coupling 23. The first gear 15 and the second locating seat 18 are sleeved on the outer wall of the universal shaft 24 from bottom to top. A sleeve 17 is also movably sleeved between the first gear 15 and the second locating seat 18 on the outer wall of the universal shaft 24. A support plate 20 and a fixing plate 19 are respectively fixedly sleeved on the outside of the sleeve 17. The support plate 20 is connected to the support base 12 through a tie rod 22. The fixing plate 19 is fixed to the bottom surface of the frame 1. A connecting column 25 is also provided at the top of the universal shaft 24. The second locating seat 18 is set on the universal shaft 24 near the connecting column 25.

[0029] The workpiece barrel 4 is composed of a top plate, a bottom plate, and several workpiece frames 7 located between the top plate and the bottom plate. The upper and lower ends of the workpiece frames 7 are provided with rotating shafts 6 that can rotate freely on the top plate and the bottom plate, respectively. The first clamping seat 11 is sleeved on the rotating shaft 6 located at the bottom end of the workpiece frame 7. The end of the rotating shaft 6 is also provided with a slot that matches and connects with the connecting column 25. Several connecting supports 9 are also provided between the top plate and the bottom plate inside the workpiece barrel 4. The output end of the top motor 3 passes through the top of the frame 1 and is connected to the top plate of the workpiece barrel 4.

[0030] The top of the frame 1 is also equipped with a positioning cylinder 2. The top plate surface is evenly distributed with positioning holes 21 near each workpiece frame 7. When the workpiece frame 7 is flipped, the cylinder rod of the positioning cylinder 2 passes through the top of the frame 1 and extends into the positioning hole 21 to satisfy the positioning function.

[0031] The specific working process is as follows: When the outer surface of the workpiece 7 on the workpiece barrel 4 is coated, the workpiece 7 located above the power rotation mechanism 5 in the middle is selected as the first workpiece 7 to be flipped. The cylinder rod of the positioning cylinder 2 at the top of the frame 1 extends and is inserted into the positioning hole 21 below the cylinder rod of the positioning cylinder 2, which plays a positioning role for the entire workpiece barrel 4. The lifting cylinder 14 in the three power rotation mechanisms 5 is started until the connecting column 25 on the universal shaft 24 is connected to the slot. Then the bottom motors 13 on both sides are started, and the second gear 16 and the first gear 15 are engaged in transmission. At this time, the second clasp 18 and the first clasp 11 are engaged together under the action of rotational force, which starts to drive the two adjacent workpiece frames 7 of the workpiece to be flipped to rotate clockwise until they are flipped 90 degrees. After completion, the bottom motor 13 in the middle is started and rotated 180 degrees clockwise according to the above principle, so that the workpiece 7 to be flipped completes the 180-degree flip. At this time, the bottom motors 13 on both sides rotate 90 degrees counterclockwise, so that the two adjacent workpieces 7 return to their original positions.

[0032] After the above flipping is completed, the cylinder rod of the positioning cylinder 2 retracts. After the top motor 3 rotates 10 degrees, one of the two original adjacent workpieces 7 becomes the new workpiece 7 to be flipped, while the workpiece 7 that has been flipped becomes the adjacent workpiece 7 of the new workpiece 7 to be flipped. According to the above working principle, the two adjacent workpieces 7 are rotated 90 degrees clockwise, and then the new workpiece 7 to be flipped is flipped 180 degrees. The workpieces 7 on both sides are then rotated 90 degrees in the opposite direction to return to their original positions. In this way, all the workpieces 7 are flipped 180 degrees in sequence, and then the coating is performed.

[0033] Before the top motor 3 rotates 18 degrees each time, the cylinder rod of the positioning cylinder 2 needs to retract. After the top motor 3 rotates 18 degrees each time, the cylinder rod of the positioning cylinder 2 begins to extend.

[0034] See appendix Figure 8 The attached diagram shows a schematic of three adjacent workpieces 7 being flipped. This is a bottom view. The middle disk 1 is the workpiece 7 to be flipped, and the other two are adjacent workpieces 7. The first picture shows the workpiece 7 before flipping. The second picture shows the two adjacent workpieces 7 having rotated 90 degrees clockwise. The third picture shows the middle workpiece 7 having rotated 180 degrees clockwise. The fourth picture shows the two adjacent workpieces 7 having rotated 90 degrees counterclockwise as required and returned to their original positions.

[0035] The above are only some specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. An automatic flipping device for a coated workpiece barrel, comprising a frame, a workpiece barrel inside the frame, multiple workpiece frames capable of rotating freely 180 degrees hanging on the outer wall of the workpiece barrel, workpieces hanging inside the workpiece frames, and a first retaining seat connected to the bottom of the workpiece frame passing through the bottom of the workpiece barrel; a top motor for rotating the workpiece barrel is provided at the top of the frame, and three sets of power rotation mechanisms are provided at the bottom of the frame, wherein any three adjacent workpiece frames can be freely flipped by their respective sets of power rotation mechanisms when the top motor rotates; the power rotation mechanism includes a lifting cylinder, a bottom motor, and a mechanism for holding the lifting cylinder and the bottom motor. The machine's support base has a universal joint structure at the top of the cylinder rod of the lifting cylinder. From bottom to top, a first gear and a second locking seat that can engage with the first locking seat are sequentially fitted onto the outside of this universal joint structure. The output end of the base motor has a second gear that meshes with the first gear. The cylinder rod of the lifting cylinder extends to engage the first and second locking seats. The bottom motor sequentially drives the second gear, the first gear, and the universal joint structure to rotate, enabling the three workpiece frames to rotate freely 180 degrees. The outer wall of the workpiece barrel is designed to movably hang 'a' workpiece frames. When the top motor operates, it rotates the workpiece barrel by an angle of 360 / a each time.

2. The automatic flipping device for coated workpiece barrels according to claim 1, characterized in that: The universal joint structure includes a universal coupling connected to the top of the cylinder rod of the lifting cylinder and a universal shaft connected to the universal coupling. Under the action of external force, the universal shaft can rotate freely on the universal coupling. The first gear and the second locator are sleeved on the outer wall of the universal shaft from bottom to top. A sleeve is also movably sleeved on the outer wall of the universal shaft between the first gear and the second locator. A support plate and a fixed plate are respectively fixedly sleeved on the outside of the sleeve. The support plate is connected to the support seat by a tie rod, and the fixed plate is fixed to the bottom surface of the frame. A connecting column is also provided at the top of the universal shaft, and the second locator is set on the universal shaft near the connecting column.

3. The automatic flipping device for coated workpiece barrels according to claim 1, characterized in that: The workpiece barrel consists of a top plate, a bottom plate, and several workpiece frames located between the top and bottom plates. Each workpiece frame has a rotating shaft at both its upper and lower ends, which can rotate freely on the top and bottom plates respectively. The first clamping seat is sleeved on the rotating shaft located at the bottom of the workpiece frame. The end of the rotating shaft is also provided with a slot for matching and connecting to the connecting column. Several connecting supports are also provided between the top and bottom plates inside the workpiece barrel. The output end of the top motor passes through the top of the frame and connects to the top plate of the workpiece barrel.

4. The automatic flipping device for coated workpiece barrels according to claim 3, characterized in that: The top of the frame is also equipped with a positioning cylinder. Positioning holes are evenly distributed on the surface of the top plate near each workpiece frame. When the workpiece frame is flipped, the cylinder rod of the positioning cylinder passes through the top of the frame and extends into the positioning hole to fulfill the positioning function.

5. The automatic flipping device for coated workpiece barrels according to claim 1, characterized in that: Each lifting cylinder and bottom motor in the power rotation mechanism can work independently.

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