Automatic turnover device for coating workpiece barrel

Abstract

The automatic turnover device 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 to be connected with first clamping bases; 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 invention, 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] The present invention relates to the technical field of lens coating production, and in particular to an automatic turning device for a coating workpiece barrel. Background Art

[0002] In the coating process for optical components, many key components, such as cutoff filters and beamsplitters, require coating on both surfaces to meet specific optical performance requirements. For example, lenses often require anti-reflection coatings on both surfaces to ensure excellent image quality and high transmittance. The traditional coating method involves placing the component in a sputtering chamber, depositing the film on one side first, then removing it and placing it back in for coating on the other side. While this method can achieve the desired coating results, it is time-consuming and inefficient. Specifically, each coating cycle requires removing the component from the fixture and undergoing vacuuming, heating, and other process steps. This entire process can take at least an hour, or even longer, especially for large components. Repeating this process to coat 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 step would significantly improve coating efficiency and production line efficiency. Summary of the Invention

[0003] In order to meet the above technical requirements, the purpose of the present invention is to provide an automatic turning device for a coating workpiece barrel. The device greatly saves processing time by continuously completing the coating of two surfaces after one vacuuming, reduces the movement of the workpiece during the coating process, and avoids the pollution and pauses caused by the intermediate steps, thereby improving the efficiency and quality of the overall production process. It is suitable for wide application in the production of optical parts.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an automatic turning device for a coating workpiece barrel, comprising a frame, a workpiece barrel is arranged inside the frame, a plurality of workpiece frames that can freely rotate 180 degrees are hung on the outer wall of the workpiece barrel, a workpiece is hung inside the workpiece frame, and the bottom end of the workpiece frame passes through the bottom of the workpiece barrel and is connected to a first clamping seat; a top motor that can rotate the workpiece barrel is provided on the top of the frame, and three groups of power rotation mechanisms are provided at the bottom of the frame. When the top motor rotates, any three adjacent workpiece frames can be freely turned over by their respective corresponding groups of power rotation mechanisms; the power rotation mechanism includes a lifting cylinder, a bottom motor and a cylinder for placing A lifting cylinder and a support base for the bottom motor are arranged, a universal structure is provided at the top end of the cylinder rod of the lifting cylinder, a first gear and a second holder that can be matched and engaged with the first holder are sequentially sleeved on the outside of the universal structure from bottom to top, and a second gear that is meshed with the first gear is provided at the output end of the base motor; the cylinder rod of the lifting cylinder is extended to mesh the first holder and the second holder together, and the bottom motor drives the second gear, the first gear and the universal structure to rotate in turn, which can satisfy the three workpiece frames to freely flip 180 degrees in turn; the outer wall of the workpiece barrel is set to movably hang a workpiece frame, and when the top motor is working, the workpiece barrel is driven to rotate at an angle of 360 / a each time.

[0005] Furthermore, the universal structure includes a universal coupling connected to the top end 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 clamping seat are sleeved on the outer wall of the universal shaft from bottom to top, and a sleeve is movably sleeved on the outer wall of the universal shaft between the first gear and the second clamping seat, and a support plate and a fixed plate are fixedly sleeved on the outside of the sleeve respectively, the support plate and the support seat are connected by a pull rod, and the fixed plate is fixed to the bottom surface of the frame; a connecting column is also provided at the top end of the universal shaft, and the second clamping seat is arranged on the universal shaft close to the connecting column.

[0006] The workpiece barrel is composed of a top plate, a bottom plate and several workpiece frames arranged between the top plate and the bottom plate. The upper and lower ends of the workpiece frame are provided with rotating shafts that can rotate freely on the top plate and the bottom plate respectively. The first clamping seat is sleeved on the rotating shaft at the bottom end of the workpiece frame, and the end of the rotating shaft is also provided with a slot hole that matches the connecting column; several connecting supports are also provided between the top plate and the bottom plate inside the workpiece barrel; the output end of the top motor passes through the top of the frame and is connected to the top plate of the workpiece barrel.

[0007] A positioning cylinder is also provided on the top of the frame, and 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 meet the positioning function.

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

[0009] The present invention 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 the workpieces in all the workpiece frames, they need to be turned over and coated on the other side. The above technical requirements are met by the present invention.

[0010] In the specific operation of the present invention, since the distance between each workpiece frame is small, when flipping the workpiece in any workpiece frame, it is necessary to first rotate the two adjacent workpiece frames 90 degrees in the forward direction, then rotate the workpiece frame in the middle 180 degrees, and then flip the two adjacent workpiece frames 90 degrees and restore them to their original state. According to this method, the workpieces are flipped 180 degrees one by one.

[0011] The specific working process is: 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, and the positioning cylinder rod on the top of the frame is extended and inserted into the positioning hole below the positioning cylinder rod at this time, which plays a positioning role for the entire workpiece barrel; start the lifting cylinders in the three power rotation mechanisms until the connecting column on the universal shaft is connected to the slot hole, and then start the bottom motors on both sides, and the second gear and the first gear are engaged for transmission. At this time, the second card holder and the first card holder are engaged together under the action of the rotational force, and begin to drive the two adjacent workpiece frames to be flipped clockwise until they are flipped 90 degrees. After completion, start the bottom motor in the middle and rotate 180 degrees clockwise according to the above principle to make the workpiece to be flipped complete a 180-degree flip. At this time, the bottom motors on both sides rotate 90 degrees counterclockwise to return the two adjacent workpieces to their original positions.

[0012] After the above flipping is completed, the positioning cylinder rod retracts, and after the top motor rotates 18 degrees, one of the original two adjacent workpieces becomes the new workpiece to be flipped, and the workpiece that has been flipped before becomes the adjacent 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 reversed 90 degrees and returned to their original positions. In this way, all the workpieces are flipped 180 degrees in turn, and then the coating is carried out.

[0013] Each time before the top motor rotates 360 / a, the cylinder rod of the positioning cylinder needs to be retracted. Each time after the top motor rotates 360 / a, the cylinder rod of the positioning cylinder begins to extend.

[0014] The beneficial effects of the present invention are: for each workpiece, it can ensure that the surface is flipped under a vacuum state, avoiding the entry of oxygen and other gases during the coating process, thereby ensuring the quality of the film layer; the workpiece drum is used to load multiple surfaces for simultaneous coating, thereby improving the utilization rate and production efficiency of the equipment; the device continuously completes the coating of two surfaces after one evacuation, greatly saving processing time, reducing the movement of the workpiece during the coating process, avoiding pollution and pauses caused by intermediate steps, thereby improving the efficiency and quality of the overall production process, and is suitable for wide application in the production of optical parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The structure and features of the present invention are further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is a structural schematic diagram of the present invention.

[0017] Figure 2 yes Figure 1 Schematic diagram of the structure in another direction.

[0018] Figure 3 yes Figure 2 A local enlarged schematic diagram of point A in the middle.

[0019] Figure 4 yes Figure 1 Schematic diagram of the structure in another direction.

[0020] Figure 5 yes Figure 4 A partial enlarged schematic diagram of the top of the middle frame and the top of the workpiece barrel.

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

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

[0023] Figure 8 It is a schematic diagram of the process of rotating a workpiece 180 degrees in the present invention.

[0024] Figure 9 It is a plan view of the power rotation mechanism of the present invention.

[0025] Attachment Figure 1-9Among them, 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. pull rod; 23. universal joint; 24. universal shaft; 25. connecting column. DETAILED DESCRIPTION

[0026] Attachment Figure 1-9 The invention is an embodiment of the present invention, which discloses an automatic turning device for a coating workpiece barrel 4, comprising a frame 1, a workpiece barrel 4 is provided inside the frame 1, 20 workpiece frames 7 that can freely rotate 180 degrees are hung on the outer wall of the workpiece barrel 4, workpieces 7 are hung inside the workpiece frames 7, and the bottom ends of the workpiece frames 7 pass through the bottom of the workpiece barrel 4 and are connected to a first clamping seat 11; a top motor 3 that can rotate the workpiece barrel 4 is provided on the top of the frame 1, and three groups of power rotation mechanisms 5 are provided at the bottom of the frame 1. When the top motor 3 rotates, any three adjacent workpiece frames 7 can be freely turned over by their respective corresponding groups of power rotation mechanisms 5; the power rotation mechanism 5 includes a lifting cylinder 14, a bottom motor 13 and a cylinder for placing the lifting cylinder 14 and The support base 12 of the bottom motor 13 and the top of the cylinder rod of the lifting cylinder 14 are provided with a universal structure, and the outside of the universal structure is sequentially sleeved with a first gear 15 and a second holder 18 that can be matched and engaged with the first holder 11 from bottom to top, and the output end of the base motor is provided with a second gear 16 that is meshed with the first gear 15; the cylinder rod of the lifting cylinder 14 is extended to mesh the first holder 11 and the second holder 18 together, and the bottom motor 13 drives the second gear 16, the first gear 15 and the universal structure to rotate in turn, which can satisfy the three workpiece frames 7 to freely flip 180 degrees in turn; it is set that 20 workpiece frames 7 are movably attached to the outer wall of the workpiece barrel 4, so that the top motor 3 drives the workpiece barrel 4 to rotate by an angle of 18 degrees each time when it is working.

[0027] In the specific operation of the present invention, since the distance between each workpiece frame 7 is small, when flipping the workpiece 7 in any workpiece frame 7, it is necessary to first rotate the two adjacent workpiece frames 7 forward 90 degrees, then rotate the workpiece frame 7 in the middle 180 degrees, and then flip the two adjacent workpiece frames 7 90 degrees, and then restore them to their original state. According to this method, the workpieces 7 are flipped 180 degrees one by one; each lifting cylinder 14 and the bottom motor 13 in the power rotation mechanism 5 can work independently.

[0028] The universal structure includes a universal coupling 23 connected to the top end 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 cardan 18 are sleeved on the outer wall of the universal shaft 24 from bottom to top, and the outer wall of the universal shaft 24 is also movably sleeved with a sleeve 17 between the first gear 15 and the second cardan 18. The outside of the sleeve 17 is also fixedly sleeved with a support plate 20 and a fixed plate 19. The support plate 20 is connected to the support seat 12 by a pull rod 22, and the fixed 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, and the second cardan 18 is arranged on the universal shaft 24 close to the connecting column 25.

[0029] The workpiece barrel 4 is composed of a top plate, a bottom plate and several workpiece frames 7 arranged between the top plate and the bottom plate. The upper and lower ends of the workpiece frame 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 at the bottom end of the workpiece frame 7. The end of the rotating shaft 6 is also provided with a slot hole that matches 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] A positioning cylinder 2 is also provided on the top of the frame 1, and positioning holes 21 are evenly distributed on the top plate surface 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 meet 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 corresponding to the upper part of the middle power rotating mechanism 5 is selected as the first workpiece 7 to be flipped, and the cylinder rod of the positioning cylinder 2 on the top of the frame 1 is extended and inserted into the positioning hole 21 below the cylinder rod of the positioning cylinder 2 at this time, which plays a positioning role for the entire workpiece barrel 4; the lifting cylinder 14 in the three power rotating mechanisms 5 is started until the connecting column 25 on the universal joint 24 is connected with the slot hole, and then the bottom motor 13 on both sides is started, and the second gear 16 and the first gear 15 are engaged for transmission. At this time, the second clamping seat 18 is engaged with the first clamping seat 11 under the action of the rotational force, and begins to drive the two adjacent workpiece frames 7 of the workpiece 7 to be flipped clockwise until it flips 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 a 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, and after being rotated 10 degrees by the top motor 3, one of the original two adjacent workpieces 7 becomes the new workpiece 7 to be flipped, and the workpiece 7 that has been flipped before becomes the adjacent workpiece 7 of the new workpiece 7 to be flipped. According to the above working principle, the current 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 reversed 90 degrees and returned to their original positions. In this way, all the workpieces 7 are flipped 180 degrees in turn, and then the coating is carried out.

[0033] Each time before the top motor 3 rotates 18 degrees, the cylinder rod of the positioning cylinder 2 needs to be retracted, and each time after the top motor 3 rotates 18 degrees, the cylinder rod of the positioning cylinder 2 begins to extend.

[0034] See attached Figure 8 , the accompanying figure shows a schematic diagram of the flipping of three adjacent workpieces 7. This is in the upward state. The No. 1 disk in the middle is the workpiece 7 to be flipped, and the other two are adjacent workpieces 7. The first picture shows before flipping, the second picture shows that the two adjacent workpieces 7 have been rotated 90 degrees clockwise, the third picture shows that the workpiece 7 in the middle has been rotated 180 degrees clockwise, and the fourth picture shows that the two adjacent workpieces 7 have been rotated 90 degrees counterclockwise as required and returned to their original positions.

[0035] The above are only some specific implementation methods of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. An automatic turning device for a coating workpiece barrel, comprising a frame, a workpiece barrel arranged inside the frame, a plurality of workpiece frames which can freely rotate 180 degrees are mounted on the outer wall of the workpiece barrel, a workpiece is mounted inside the workpiece frame, and the bottom end of the workpiece frame passes through the bottom of the workpiece barrel and is connected to a first clamping seat; a top motor which can rotate the workpiece barrel is arranged on the top of the frame, and three sets of power rotating mechanisms are respectively arranged at the bottom of the frame. When the top motor rotates, any three adjacent workpiece frames can be freely turned over by their respective corresponding sets of power rotating mechanisms; the power rotating mechanism comprises a lifting cylinder, a bottom motor and a cylinder for placing the lifting cylinder and the bottom motor The support base of the machine, a universal structure is set at the top of the cylinder rod of the lifting cylinder, and the outside of the universal structure is sequentially sleeved with a first gear and a second clamping seat that can be matched with the first clamping seat from bottom to top, and the output end of the base motor is provided with a second gear that is meshed with the first gear; the cylinder rod of the lifting cylinder is extended to mesh the first clamping seat and the second clamping seat together, and the bottom motor drives the second gear, the first gear and the universal structure to rotate in turn, which can satisfy the three workpiece frames to flip freely 180 degrees in turn; the outer wall of the workpiece barrel is set to movably hang a workpiece frame, and when the top motor is working, the workpiece barrel is driven to rotate at an angle of 360 / a each time.

2. The automatic turning device for coating workpiece barrel according to claim 1 is characterized in that: The universal structure includes a universal coupling connected to the top end 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 clamping seat are sleeved on the outer wall of the universal shaft from bottom to top, and a sleeve is movably sleeved on the outer wall of the universal shaft between the first gear and the second clamping seat. A support plate and a fixed plate are fixedly sleeved on the outside of the sleeve respectively. The support plate and the support seat are connected by a pull rod, and the fixed plate is fixed to the bottom surface of the frame; a connecting column is also provided at the top end of the universal shaft, and the second clamping seat is arranged on the universal shaft close to the connecting column.

3. The automatic turning device for coating workpiece barrel according to claim 1 is characterized in that: The workpiece barrel is composed of a top plate, a bottom plate and several workpiece frames arranged between the top plate and the bottom plate. The upper and lower ends of the workpiece frame are provided with rotating shafts that can rotate freely on the top plate and the bottom plate respectively. The first clamping seat is sleeved on the rotating shaft at the bottom end of the workpiece frame, and the end of the rotating shaft is also provided with a slot hole that matches the connecting column; several connecting supports are also provided between the top plate and the bottom plate inside the workpiece barrel; the output end of the top motor passes through the top of the frame and is connected to the top plate of the workpiece barrel.

4. The automatic turning device for coating workpiece barrel according to claim 3 is characterized in that: A positioning cylinder is also provided on the top of the frame, and 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 meet the positioning function.

5. The automatic turning device for coating workpiece barrel according to claim 1 is characterized in that: Each lifting cylinder and bottom motor in the power rotation mechanism can work independently.

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