A carousel-type monitoring glass replacement device

Abstract

The utility model provides a kind of rotary table type monitoring glass replacement device, including lower shell, rotary table, rotary drive mechanism, jaw and upper shell, wherein rotary table is horizontally installed in lower shell, surface is equipped with discharge station and multiple standby stations, the position of discharge station corresponding discharge port is designed with gap, it is convenient for glass accurate positioning to fall down.Rotary table is driven by belt by servo motor, realizes continuous operation, and improves replacement efficiency.Jaw realizes vertical motion by screw rod lifting mechanism, and is driven rotating clamping by rotary cylinder again.The replacement device provided by the utility model is compact in overall structure, high in cycle degree, can be adapted to vacuum plating equipment in existing market, and the replacement of workpiece is completed under the premise of not stopping.

Description

Technical Field

[0001] This utility model relates to an auxiliary device for a coating machine, and in particular to a rotary monitoring glass replacement device. Background Technology

[0002] Vacuum coating technology can be used to manufacture various optical components containing materials with high transparency, high reflectivity, and low scattering, such as lenses, filters, etc. The thickness of the thin film layer on the surface of an optical component is closely related to its performance. Vacuum coating machines provide the optics industry with an efficient and stable coating solution, reducing interference with the coating through a vacuum environment and improving the quality and performance of optical components. To produce high-precision optical thin film layers with specific thicknesses, optical devices are needed to control the thickness of the film layer. However, this optical control device does not act directly on the substrate to be coated; instead, it needs to be applied to the surface of specially designed monitoring glass, which needs to be replaced during the coating process. In existing technologies, replacing the coating glass usually requires stopping the vacuum coating machine and transferring the glass from the coating chamber to the atmosphere, which severely affects the operating efficiency and continuity of the vacuum coating machine. Furthermore, replacing the glass in the atmosphere can cause contamination of the coating glass surface due to particle impact, thus affecting the final coating quality. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a rotary monitoring glass replacement device, including a lower housing with a material inlet at the bottom that communicates with the carrier chamber;

[0004] A turntable is rotatably disposed inside the lower housing. The surface of the turntable is provided with a discharge station and at least one standby station. The discharge station is provided with a notch corresponding to the position of the material outlet.

[0005] A rotary drive mechanism, connected to the center of the turntable, is used to drive the turntable to rotate;

[0006] The gripper is positioned above the turntable and directly opposite the feed inlet, and is used to transfer the workpiece on the turntable.

[0007] The upper housing is connected above the lower housing, and a lead screw lifting mechanism is provided inside it, which drives the gripper to move vertically.

[0008] Furthermore, the lower housing includes a base and a top cover that is detachably mounted on the base, and the top cover and the base are detachably fixed together by a threaded connector.

[0009] Furthermore, the rotary drive mechanism is driven by a servo motor, the fixed end of which is connected to the outside of the lower housing, and the central shaft of the turntable is connected to the servo motor for transmission.

[0010] Furthermore, the drive end of the servo motor is fitted with a drive wheel, and the central shaft of the turntable is fitted with a driven wheel. The drive wheel and the driven wheel are connected by a transmission belt.

[0011] Furthermore, the upper housing is provided with a top plate and a bottom plate, the screw lifting mechanism is connected to the top plate, the top plate and the bottom plate are fixedly connected to the inner side of the upper housing, and the driving end of the screw lifting mechanism is connected to a lifting plate.

[0012] Furthermore, the lifting plate is provided with a rotary clamping mechanism, and the side of the clamping jaw is provided with a clamping hole. The clamping jaw is connected to the drive end of the rotary clamping mechanism, and the workpiece is clamped by the drive of the rotary clamping mechanism.

[0013] Furthermore, the lead screw lifting mechanism includes a lead screw motor fixedly connected to the top plate, a transmission lead screw connected to the drive end of the lead screw motor, and a lifting plate being drivenly connected to the transmission lead screw.

[0014] Furthermore, the rotary clamping mechanism includes a rotating shaft, a bellows sleeved on the outside of the rotating shaft, and a gripper connected to the bottom of the rotating shaft. The rotating shaft is driven to rotate by a rotary cylinder. The bellows is connected between the lifting plate and the base plate.

[0015] Furthermore, the lifting unit also includes a guide rod, the upper part of which is connected to the top plate, and the bottom of which is slidably connected to the lifting plate.

[0016] This invention provides a rotary monitoring glass replacement device, comprising a lower housing, a rotary disk, a rotary drive mechanism, grippers, and an upper housing. The rotary disk is horizontally installed inside the lower housing, and its surface has a discharge station and multiple standby stations. The discharge station has a notch corresponding to the material inlet, facilitating precise glass positioning and descent. The rotary disk is driven by a servo motor via belt, enabling continuous operation and improving replacement efficiency. The grippers achieve vertical movement via a screw lifting mechanism, and are then driven by a rotary cylinder to rotate and clamp the glass. The replacement device provided by this invention has a compact overall structure, high cycle efficiency, and is compatible with existing vacuum coating equipment, allowing for workpiece replacement without stopping the entire machine. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a rotary monitoring glass replacement device according to the present invention;

[0018] Figure 2 This is a schematic diagram of the upper part of the base;

[0019] Figure 3 This is a schematic diagram showing the connection between the rotary drive mechanism and the base;

[0020] Figure 4 This is a structural diagram of the lifting unit;

[0021] Figure 5 This is a schematic diagram of the grippers rotating to hold the workpiece.

[0022] Reference numerals: 1. Lower housing; 2. Turntable; 3. Feed port; 4. Notch; 5. Gripper; 6. Base; 7. Top cover; 8. Connecting flange; 9. Servo motor; 10. Drive wheel; 11. Driven wheel; 12. Transmission belt; 13. Top plate; 14. Bottom plate; 15. Lifting plate; 16. Clamping hole; 17. Lead screw motor; 18. Transmission lead screw; 19. Rotary shaft; 20. Bellows; 21. Guide rod; 22. Monitoring glass; 23. Rotary cylinder; 24. Upper housing.

[0023] Discharge station A, standby station B. Detailed Implementation

[0024] like Figure 1 The rotary monitoring glass replacement device shown includes a lower housing 1, a rotary disk 2 rotatably disposed within the lower housing 1, and a rotary drive mechanism for rotating the rotary disk 2. The surface of the rotary disk 2 has a discharge station A and at least one standby station B around its rotation center. The number of standby stations B is set according to actual needs; in this embodiment, it includes seven standby stations B. Each standby station B has a square slot for placing the monitoring glass 22. The replacement device can be installed in different areas of the vacuum coating machine, such as in the loading chamber of the transport carrier or in the process chamber. In this embodiment, the lower housing 1 is connected to the carrier chamber of the vacuum coating equipment, and the monitoring glass 22 is transferred from the surfaces of various carriers within the carrier chamber.

[0025] The bottom of the lower housing 1 has a material inlet 3 that communicates with the carrier chamber. The material inlet 3 is directly opposite the placement position of the monitoring glass 22 inside the carrier chamber. The discharge station A has a notch 4 at the position corresponding to the material inlet 3. The size of the notch 4 matches the shape and size of the monitoring glass 22, allowing the monitoring glass 22 to pass through the notch 4 stably. When the discharge station A rotates to above the material inlet 3 under the drive of the rotary drive mechanism, the monitoring glass 22 to be replaced can be vertically moved through the notch 4 and the material inlet 3, moving back and forth between the lower housing 1 and the interior of the carrier chamber. The lower housing 1 ensures the isolation of the interior area of ​​the carrier chamber from the external atmosphere, and the entire replacement process of the monitoring glass 22 can be carried out in the vacuum environment of the carrier chamber.

[0026] The vertical movement of the monitoring glass 22 relies on the gripper 5 inside the lower housing 1. The gripper 5 is connected to the output end of a lifting unit, positioned above the turntable 2 and directly opposite the material inlet 3 at the bottom of the lower housing 1. When the standby station B is above the material inlet 3, the gripper 5 is fixed to the turntable 2 and moves the monitoring glass 22. When the discharge station A rotates to above the material inlet 3, the gripper 5, driven by the lifting unit, vertically passes through the notch 4 and the material inlet 3, gripping or releasing the monitoring glass 22 from the carrier compartment.

[0027] The lower housing 1 includes a base 6 and a top cover 7 detachably mounted on top of the base 6. The top cover 7 and the base 6 are detachably fixed together by threaded connections. Opening the top cover 7 allows for easy adjustment and maintenance of the turntable 2 inside the lower housing 1 and the material on the turntable 2. The base 6 has mounting holes for docking with the carrier chamber. In this embodiment, the mounting holes can be located at the bottom of the base 6, with the entire replacement device fixedly mounted on the top of the carrier chamber. A connecting flange 8 extending into the carrier chamber is provided at the material inlet 3, so that the lower housing 1 communicates with the interior of the carrier chamber only at the material inlet 3. Alternatively, the entire replacement device can be installed inside the carrier chamber, with the lower housing 1 serving as a support for the turntable 2 within the carrier chamber. The installation position of the replacement device may affect the system layout, but both can achieve automated material exchange inside the vacuum coating machine.

[0028] Specifically, the rotary drive mechanism is driven by a servo motor 9. The fixed end of the servo motor 9 is connected to the outside of the lower housing 1, and the drive end of the servo motor 9 is fitted with a drive wheel 10. One end of the central shaft of the turntable 2 extends out of the bottom of the lower housing 1 and a driven wheel 11 is provided at the end of the central shaft. The drive wheel 10 and the driven wheel 11 transmit the rotational stroke through a transmission belt 12.

[0029] The lifting unit includes an upper housing 24, which is connected above the lower housing 1. A connecting opening for the gripper 5 to pass through is provided at the connection point between the upper housing 24 and the lower housing 1. The gripper 5 is located above the feed inlet 3. The upper housing 24 contains a top plate 13, a bottom plate 14, and a screw lifting mechanism connected to the top plate 13. The top plate 13 and the bottom plate 14 are fixedly connected to the inner side of the upper housing 1. A lifting plate 15 is connected to the drive end of the screw lifting mechanism. A rotating clamping mechanism is provided on the lifting plate 15, and the gripper 5 is connected to the drive end of the rotating clamping mechanism.

[0030] The gripper 5 has a clamping hole 16 on its side, corresponding to the clamping part on the workpiece. During the rotation of the gripper 5, the clamping part will engage with the clamping hole 16, thereby achieving the clamping of the workpiece. The lead screw lifting mechanism controls the vertical linear movement of the gripper 5, and the rotary clamping mechanism controls the torsional movement of the gripper 5, forming a clamping system that combines lifting and rotation functions.

[0031] Specifically, the screw lifting mechanism includes a screw motor 17 fixedly connected to the top plate 13, a transmission screw 18 connected to the drive end of the screw motor 17, and a lifting plate 15 drivenly connected to the transmission screw 18. The vertical movement of the lifting plate 15 and the rotary clamping mechanism is controlled by the rotation of the screw motor 17. The rotary clamping mechanism includes a rotating shaft 19, a bellows 20 sleeved on the outside of the rotating shaft 19, and a gripper 5 connected to the bottom of the rotating shaft 19. The rotating shaft 19 is driven to rotate by a rotary cylinder 23. The bellows 20 is connected between the lifting plate 15 and the bottom plate 14, providing elastic support for the vertical movement of the rotary clamping mechanism and ensuring the stability of the lifting and lowering movement of the gripper 5.

[0032] Furthermore, the lifting unit also includes a guide rod 21. The upper part of the guide rod 21 is connected to the top plate 13, and the bottom of the guide rod 21 is slidably connected to the lifting plate 15. The guide rod 21 and the screw lifting mechanism form a compound kinematic pair, which simultaneously constrains the radial degree of freedom of the bellows 20, and only retains the axial lifting and rotational degrees of freedom around the axis to ensure stability during the movement.

[0033] Combined with appendix Figures 1 to 5 The working process of this embodiment is as follows: the gripper 5 is located above the material outlet 3, the turntable 2 rotates to move the workpiece of the standby station B to the position of the material outlet 3, the gripper 5 rotates from the square groove to pick up the spare monitoring glass 22; control the turntable 2 to rotate until the discharge station A is aligned with the material outlet 3, the gripper 5 descends through the notch 4, and takes out the old glass from the carrier chamber or puts the new glass into the carrier.

[0034] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A rotary monitoring glass replacement device, characterized in that: It includes a lower shell (1), the bottom of which is provided with a material port (3) that communicates with the carrier chamber; A turntable (2) is rotatably disposed inside the lower housing (1). The surface of the turntable (2) is provided with a discharge station and at least one standby station. The discharge station is provided with a notch (4) corresponding to the position of the material outlet (3). A rotary drive mechanism is connected to the center of the turntable (2) and is used to drive the turntable (2) to rotate; The gripper (5) is positioned above the turntable (2) and directly opposite the feed inlet (3) for transferring the workpiece on the turntable; The upper housing (24) is connected above the lower housing (1), and a screw lifting mechanism is provided inside it. The screw lifting mechanism drives the gripper (5) to move vertically.

2. The rotary monitoring glass replacement device as described in claim 1, characterized in that: The lower housing (1) includes a base (6) and a top cover (7) that is detachably mounted on the base (6). The top cover (7) and the base (6) are detachably fixed together by a threaded connector.

3. The rotary monitoring glass replacement device as described in claim 1, characterized in that: The rotary drive mechanism is driven by a servo motor (9), the fixed end of which is connected to the outside of the lower housing (1), and the central shaft of the turntable (2) is connected to the servo motor (9) for transmission.

4. The rotary monitoring glass replacement device as described in claim 3, characterized in that: The drive end of the servo motor (9) is fitted with a drive wheel (10), and the center shaft of the turntable (2) is fitted with a driven wheel (11). The drive wheel (10) and the driven wheel (11) are connected by a transmission belt (12).

5. The rotary monitoring glass replacement device as described in claim 1, characterized in that: The upper housing (24) is provided with a top plate (13) and a bottom plate (14). The screw lifting mechanism is connected to the top plate (13). The top plate (13) and the bottom plate (14) are fixedly connected to the inside of the upper housing (24). The driving end of the screw lifting mechanism is connected to a lifting plate (15).

6. The rotary monitoring glass replacement device as described in claim 5, characterized in that: The lifting plate (15) is provided with a rotary clamping mechanism. The side of the clamping claw (5) is provided with a clamping hole (16). The clamping claw (5) is connected to the drive end of the rotary clamping mechanism and clamps the workpiece by driving the rotary clamping mechanism.

7. The rotary monitoring glass replacement device as described in claim 6, characterized in that: The screw lifting mechanism includes a screw motor (17) fixedly connected to the top plate (13), a transmission screw (18) connected to the drive end of the screw motor (17), and a lifting plate (15) being connected to the transmission screw (18).

8. The rotary monitoring glass replacement device as described in claim 7, characterized in that: The rotating clamping mechanism includes a rotating shaft (19), a bellows (20) sleeved on the outside of the rotating shaft (19), and a gripper (5) connected to the bottom of the rotating shaft (19). The rotating shaft (19) is driven to rotate by a rotating cylinder (23). The bellows (20) is connected between the lifting plate (15) and the base plate (14).

9. A rotary monitoring glass replacement device as described in claim 6, characterized in that: It also includes a guide rod (21), the upper part of which is connected to the top plate (13), and the bottom of which is slidably connected to the lifting plate (15).

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