CN215103521U

CN215103521U - Rotatory tongs of lens vacuum coating machine lens frame

Info

Publication number: CN215103521U
Application number: CN202121431656.0U
Authority: CN
Inventors: 李时代
Original assignee: Danyang Dingxin Machinery Equipment Co ltd
Current assignee: Danyang Dingxin Machinery Equipment Co ltd
Priority date: 2021-06-26
Filing date: 2021-06-26
Publication date: 2021-12-10
Anticipated expiration: 2031-06-26

Abstract

The utility model relates to a lens frame rotary gripper of a lens vacuum coating machine, which comprises a main cavity top plate, wherein the top of the main cavity top plate is provided with an eccentric sleeve, a vertically rotating driving shaft and a gear sleeve are arranged in the eccentric sleeve, a pinion of the driving shaft is meshed with a gear wheel of the gear sleeve, the bottom of the gear sleeve is provided with an upper ring, the bottom of the upper ring is provided with a slide hole, the bottom of the main cavity top plate is provided with a plurality of fixed sliding plates and a chuck outer ring which is concentric with the upper ring and vertically ascends and descends, the bottom of a movable sliding plate at the bottom of the fixed sliding plates is provided with a clamping plate, the chuck and the chuck outer ring are both provided with matched conical surfaces, a tension spring is arranged between the chuck and the fixed sliding plates, the lens frame is hoisted and installed through a plurality of clamping plates which synchronously expand outwards and contract inwards or clamps, the upper ring drives the lens frame to rotate, the occupied volume of a vacuum chamber is reduced, the lens frame can be automatically driven under a vacuum environment, and the fixed disassembly and the rotation of the lens frame and the top of the coating machine can be realized, so as to carry out continuous feeding and discharging transfer coating in the vacuum chamber and improve the automation degree and coating efficiency of the lens vacuum coating machine.

Description

Rotatory tongs of lens vacuum coating machine lens frame

Technical Field

The utility model relates to a rotatory tongs of lens vacuum coating machine lens frame belongs to lens vacuum coating equipment technical field.

Background

The coating material under the vacuum environment is isolated and purely plated and shot on the surface of the lens by a vacuum coating machine under the vacuum environment to form an abrasion-resistant film, an antireflection film, an anti-pollution film and the like, so that abrasion-resistant scratches, refraction ghosts and dazzling phenomena of wearing the lens are improved, and higher definition is expressed. During film coating, a plurality of cleaned lenses are loaded on a lens frame and fed or transferred into a lens vacuum film coating chamber through a carrying platform, the lens frame is lifted by the carrying platform and then needs to be fixed on the top of a main cavity of a film coating machine and separated from the carrying platform, and time and labor are wasted due to manual installation, and the processing efficiency is affected due to the fact that the lens frame cannot be operated in a vacuum environment;

meanwhile, when the high-energy coating particles are plated and shot at the same point for a long time during coating, pits and even breakdown phenomena are easy to generate, and the rejection rate is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the defect of prior art, provide a rotatory tongs of lens vacuum coating machine lens frame, reduced to real empty room occupy the volume, can be under vacuum environment with the rotatory tongs automatic drive of machinery, realize the fixed dismouting and the rotation at lens frame and coating machine top to continuous coating film, improvement lens vacuum coating machine's degree of automation and coating film efficiency.

The utility model discloses a realize through following technical scheme:

a rotary gripper for a lens frame of a lens vacuum coating machine comprises a main cavity top plate, wherein an eccentric sleeve is arranged at the top of the main cavity top plate, an eccentrically and vertically rotating driving shaft and a gear sleeve positioned on one side of the driving shaft are arranged in the eccentric sleeve, a pinion is coaxially arranged at the bottom of the driving shaft, a large gear meshed with the pinion is arranged outside the gear sleeve, the bottom of the gear sleeve penetrates through the main cavity top plate and is provided with a concentric upper ring, and at least one sliding hole is formed in the bottom of the upper ring;

an inner sleeve is arranged in the gear sleeve, an upper sealing plate and a lower sealing plate are respectively fixed at two ends of the inner sleeve, an eccentric flange eccentrically connected with the bottom of the upper sealing plate is arranged at the top of the gear sleeve, and the lower sealing plate is in clearance fit with the bottom of the gear sleeve;

a horizontally arranged servo motor is arranged at the top of the gear sleeve, and a motor shaft of the servo motor and a driving shaft are respectively and coaxially provided with vertically meshed bevel gears;

the bottom of the top plate of the main cavity is provided with a plurality of fixed sliding plates and a chuck outer ring which is positioned outside the fixed sliding plates, concentric with the upper ring and vertically ascends and descends, the fixed sliding plates are arranged at intervals around the upper ring, the bottoms of the fixed sliding plates are provided with movable sliding plates in sliding fit, the bottoms of the movable sliding plates are provided with clamping plates, the outer ends of the clamping plates and the outer wall of the chuck outer ring are both provided with matched conical surfaces, and two sides of the outer ends of the clamping plates are provided with tension springs connected with the fixed sliding plates;

the top of the main cavity top plate is provided with a plurality of vertically arranged cylinders at intervals, and the end parts of cylinder rods of the cylinders penetrate through the main cavity top plate and are fixedly connected with the top of the outer ring of the chuck.

The utility model has the advantages that:

(1) the cylinder rod of the cylinder stretches and retracts to drive the chuck outer ring to vertically lift, a plurality of clamping plates are jacked outwards when the chuck outer ring descends, the clamping plates are matched with the conical surface of the chuck outer ring in the conical surface, the movable sliding plate is limited and guided by the sliding fit of the fixed sliding plate to move downwards, the movable sliding plate expands outwards towards the center of the upper ring and stretches the tension spring to give way for the gripper or relieve the gripper, and the clamping plates retract synchronously under the restoring tension of the tension spring when the chuck ascends and are matched with the fixed sliding plate through the conical surface so as to grip and hoist the lens frame;

(2) a motor shaft of a servo motor drives a driving shaft to rotate on the eccentric sleeve under the transmission of the engaged vertical bevel gear, and is engaged with a large gear of a gear sleeve through a small gear, and the driving gear is sleeved on the eccentric sleeve to rotate at a reduced speed, so that the upper ring is matched with a deflector rod at the end of the lens frame through a slide hole and integrally rotates at the top of the vacuum chamber, and the film coating uniformity is improved, and pits and even breakdown phenomena are avoided;

to sum up, through external drive, a plurality of splint expand outward in step before realizing the coating film, the centre gripping hoist and mount lens frame that contracts in, the lens frame that the upper circle drove hoist and mount during the coating film is rotatory, a plurality of splint expand outward behind the coating film and remove the centre gripping, compact structure, reduced the volume that occupies to real empty room, can be under vacuum environment with the rotatory tongs automatic drive of machinery, realize the fixed dismouting and the rotation at lens frame and coating machine top, so that carry out the business turn over material in succession in the vacuum chamber and transport the coating film, thereby improve lens vacuum coating machine's degree of automation and coating film efficiency.

Drawings

Fig. 1 is a front view of the lens frame of the present invention.

Fig. 2 is a top view structural diagram of the present invention.

Fig. 3 is a bottom perspective view of the present invention.

Fig. 4 is a bottom view of the present invention.

Fig. 5 is a side view structure diagram of the utility model omitting the tension spring.

Fig. 6 is a sectional structure view of the present invention.

The labels in the figure are: the main cavity roof 1, eccentric cover 2, drive shaft 3, gear housing 4, pinion 5, gear wheel 6, upper ring 7, slide opening 8, bulge loop 9, bearing 10, endotheca 11, go up shrouding 12 and lower shrouding 13, eccentric flange 14, servo motor 15, bevel gear 16, fixed slide 17, chuck outer loop 18, activity slide 19, splint 20, the conical surface 21, extension spring 22, chuck board 201, end plate 202, arc notch 23, cylinder 24, cylinder pole 25, lens frame 26, end 27, concave ring 28.

Detailed Description

The following describes the present invention with reference to the accompanying drawings.

A rotary gripper for a lens frame of a lens vacuum coating machine comprises a main cavity top plate 1, wherein an eccentric sleeve 2 is arranged at the top of the main cavity top plate 1, an eccentrically arranged and vertically rotating driving shaft 3 and a gear sleeve 4 positioned on one side of the driving shaft 3 are arranged in the eccentric sleeve 2, a pinion 5 is coaxially arranged at the bottom of the driving shaft 3, a large gear 6 meshed with the pinion 5 is arranged outside the gear sleeve 4, the bottom of the gear sleeve 4 penetrates through the main cavity top plate 1 and is provided with a concentric upper ring 7, at least one sliding hole 8 is arranged at the bottom of the upper ring 7, and the sliding hole 8 is of an arc structure communicated with the upper ring 7;

a convex ring 9 with the bottom in clearance fit with the eccentric sleeve 2 is arranged outside the gear sleeve 4, and a bearing 10 which is positioned at the top and the bottom of the large gear 6 and is matched with the gear sleeve 4 is arranged outside the convex ring 9;

an inner sleeve 11 is arranged in the gear sleeve 4, an upper sealing plate 12 and a lower sealing plate 13 are respectively fixed at two ends of the inner sleeve 11, an eccentric flange 14 eccentrically connected with the bottom of the upper sealing plate 12 is arranged at the top of the gear sleeve 4, and the lower sealing plate 13 is in clearance fit with the bottom of the gear sleeve 4;

a horizontally arranged servo motor 15 is arranged at the top of the gear sleeve 4, and a motor shaft of the servo motor 15 and the driving shaft 3 are respectively and coaxially provided with vertically meshed bevel gears 16;

the bottom of the top plate 1 of the main cavity is provided with a plurality of fixed sliding plates 17 and a chuck outer ring 18 which is positioned outside the fixed sliding plates 17, is concentric with the upper ring 7 and vertically ascends and descends, the fixed sliding plates 17 are arranged at intervals around the upper ring 7, the bottom of the fixed sliding plates 17 is provided with movable sliding plates 19 in sliding fit, the bottom of the movable sliding plates 19 is provided with clamping plates 20, the outer ends of the clamping plates 20 and the outer wall of the chuck outer ring 18 are both provided with matched conical surfaces 21, and two sides of the outer end of each clamping plate 20 are provided with tension springs 22 connected with the fixed sliding plates 17;

the clamping plate 20 comprises a clamping head plate 201 connected with the bottom of the movable sliding plate 19 and an end plate 202 vertically connected with the outer end portion of the clamping head plate 201, a conical surface 21 and a tension spring 22 are arranged on the end plate 202, an arc-shaped notch 23 concentric with the upper ring 7 is arranged at the inner end portion of the clamping head plate 201, a plurality of air cylinders 24 vertically arranged at intervals are arranged at the top of the main cavity top plate 1, and the end portions of air cylinder rods 25 of the air cylinders 24 penetrate through the main cavity top plate 1 and are fixedly connected with the top of the clamping head outer ring 18.

The utility model discloses a theory of operation does:

referring to the attached drawings, the top of a lens frame 26 is provided with an end 27 with a concave ring 28, when a lens to be coated is placed on the lens frame 26 and lifted to be close to a main cavity top plate 1 through a carrying platform, an air cylinder 24 is arranged at the top of the main cavity top plate 1 and extends through a pneumatic control air cylinder rod 25 to drive a collet outer ring 18 connected with the air cylinder rod 25 to vertically descend, and an end plate 202 of an outer top clamping plate 20, so that the clamping plate 20 moves outwards from the center of an upper ring 7 under the matching of a conical surface 21 of the end plate 202 and the conical surface 21 of the collet outer ring 18, is limited and guided under the sliding matching action of a movable sliding plate 19 and a fixed sliding plate 17, and a tension spring 22 is stretched to enable a plurality of clamping plates 20 to synchronously outwards expand under the driving of the collet outer ring 18 and be larger than the outer diameter of the end 27 of the lens frame 26;

a deflector rod which is in sliding fit with the sliding hole 8 is arranged on the end 27 of the lens frame 26, when the lens frame 26 lifted by the carrying platform continues to ascend, the deflector rod is inserted into the sliding hole 8, the sliding hole 8 is in an arc structure, so that the hole aligning is more convenient, the end 27 is contacted with the bottom of the upper ring 7, the cylinder rod 25 of the cylinder 24 contracts to drive the collet outer ring 18 to vertically ascend, the clamping plates 20 are matched with the conical surface 21 of the collet outer ring 18 through the conical surface 21 of the end plate 202 under the elastic restoring tension of the tension spring 22 between the end plate 202 and the fixed sliding plate 17, a plurality of clamping plates 20 are synchronously inwards contracted towards the center of the upper ring 7, the arc-shaped notch 23 at the inner end part of the clamping plate 201 is clamped with the concave ring 28 of the end 27 of the lens frame 26, and the grabbing and hoisting of the lens frame 26 is realized;

a motor shaft of a servo motor 15 drives a driving shaft 3 to rotate on an eccentric sleeve 2 under the transmission of a vertical bevel gear 16 which is meshed with the motor shaft, and the driving shaft is meshed with a large gear 6 of a gear sleeve 4 through a small gear 5, so that the gear sleeve 4 is driven to rotate on the eccentric sleeve 2 in a speed reduction way, the gear sleeve 4 is supported in the eccentric sleeve 2 through the clearance fit of the bottom of a convex ring 9 and the eccentric sleeve 2, the rotation coaxiality and the support stability are improved through a bearing 10, the inside of the gear sleeve is connected with an eccentric flange 14 at the top of the gear sleeve 4 through an upper seal plate 12, a lower seal plate 13 at the bottom of an inner sleeve 11 is in clearance fit with the gear sleeve 4, the sealing performance during film coating is ensured, the assembly and disassembly are convenient, the quality of the hollow gear sleeve 4 is solid and lighter when the hollow gear sleeve 4 is driven, and the energy-saving and the internal wiring installation are convenient;

during film coating, the driving gear sleeve 4 rotates, the slide hole 8 is matched with a deflector rod of the end 27 through the upper ring 7 which is positioned at the bottom of the top plate 1 of the main cavity, namely in the vacuum chamber, and the whole lens frame 26 is driven to rotate at the top of the vacuum chamber under the hanging of the gripping clamps of the plurality of clamping plates 20, so that the film coating uniformity is improved, and pits and even breakdown phenomena are avoided;

after coating, the carrying platform moves to the bottom of the lens frame 26, similarly, a cylinder rod 25 of the cylinder 24 extends, the plurality of clamping plates 20 are outwards expanded to remove the clamping of the end 27 of the lens frame 26 in the descending process of the chuck outer ring 18, and the deflector rod of the end 27 is separated from the sliding hole 8 of the upper ring 7 in the descending process of the carrying platform, so that integral discharging or transferring is facilitated;

in conclusion, the gear sleeve 4 is driven to rotate by the speed reduction of the internal rotation driving shaft 3 of the external eccentric sleeve 2, the chuck outer ring 18 is driven to lift by the air cylinder 24, the cooperation of the conical surface 21, the guide of the fixed sliding plate 17 and the movable sliding plate 19 and the elastic action of the tension spring 22 are realized, a plurality of clamping plates 20 before coating are synchronously expanded outwards and internally contracted to clamp and hoist the lens frame 26, the lens frame 26 hoisted by the upper ring 7 driven by the sliding hole 8 in coating is rotated to improve the coating uniformity, the clamping is relieved by expanding outwards the plurality of clamping plates 20 after coating, so that the lens frame 26 is separated from discharging or transferring, the structure is compact, the occupied volume of a vacuum chamber is reduced, the lens frame 26 is close to the top of the coating machine, the vacuum space is favorably and fully utilized, the vacuum energy consumption is saved, the efficiency is improved, the automatic driving can be realized by the mechanical rotation gripper in a vacuum environment, the fixed disassembly and the rotation of the lens frame 26 and the top of the coating machine are realized, so as to carry out continuous feeding and discharging coating in the vacuum chamber, thereby improving the automation degree and the coating efficiency of the lens vacuum coating machine.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A rotary gripper for a lens frame of a lens vacuum coating machine comprises a main cavity top plate (1), and is characterized in that an eccentric sleeve (2) is arranged at the top of the main cavity top plate (1), an eccentrically arranged and vertically rotating driving shaft (3) and a gear sleeve (4) positioned on one side of the driving shaft (3) are arranged in the eccentric sleeve (2), a pinion (5) is coaxially arranged at the bottom of the driving shaft (3), a gear wheel (6) meshed with the pinion (5) is arranged outside the gear sleeve (4), the bottom of the gear sleeve (4) penetrates through the main cavity top plate (1) and is provided with a concentric upper ring (7), and at least one sliding hole (8) is arranged at the bottom of the upper ring (7);

the utility model discloses a clamp, including main cavity roof (1), main cavity roof (1) bottom be equipped with a plurality of fixed slide (17), be located the concentric and vertical lift chuck outer loop (18) of fixed slide (17) outside and last circle (7), a plurality of fixed slide (17) set up around last circle (7) a week interval, fixed slide (17) bottom is equipped with sliding fit's activity slide (19), activity slide (19) bottom is equipped with splint (20), splint (20) outer end all is equipped with complex conical surface (21) with chuck outer loop (18) outer wall, and splint (20) outer end both sides are equipped with extension spring (22) that link to each other with fixed slide (17).

2. The rotary gripper for lens holder of vacuum lens coating machine according to claim 1, characterized in that a convex ring (9) whose bottom is in clearance fit with the eccentric sleeve (2) is provided outside the gear sleeve (4), and a bearing (10) which is located at the top and bottom of the bull gear (6) and is in fit with the gear sleeve (4) is provided outside the convex ring (9).

3. The rotary gripper for lens holder of vacuum lens coating machine according to claim 1, wherein an inner sleeve (11) is disposed in the gear sleeve (4), an upper sealing plate (12) and a lower sealing plate (13) are respectively fixed at two ends of the inner sleeve (11), an eccentric flange (14) eccentrically connected to the bottom of the upper sealing plate (12) is disposed at the top of the gear sleeve (4), and the lower sealing plate (13) is in clearance fit with the bottom of the gear sleeve (4).

4. The rotary gripper for lens frame of vacuum coating machine for lens of claim 1, wherein the slide hole (8) is of arc-shaped configuration which is concentric with the upper ring (7).

5. The rotary gripper for lens frame of vacuum coating machine for lens according to claim 1, wherein the clamping plate (20) comprises a clamping plate (201) connected to the bottom of the movable sliding plate (19), an end plate (202) vertically connected to the outer end of the clamping plate (201), and the tapered surface (21) and the tension spring (22) are disposed on the end plate (202).

6. The rotary gripper for lens frame of vacuum coating machine for lens of claim 5, characterized in that the inner end of the chuck plate (201) is provided with an arc-shaped notch (23) concentric with the upper ring (7).

7. The rotary gripper for lens holder of vacuum coating machine for lens according to any one of claims 1 to 6, characterized in that a horizontally disposed servo motor (15) is disposed on top of the gear sleeve (4), and vertically engaging bevel gears (16) are respectively coaxially disposed on a motor shaft of the servo motor (15) and the driving shaft (3).

8. The rotary gripper for lens holder of vacuum coating machine for lens according to any one of claims 1 to 6, characterized in that a plurality of vertically spaced cylinders (24) are disposed on the top of the main cavity top plate (1), and the ends of the cylinder rods (25) of the cylinders (24) pass through the main cavity top plate (1) and are fixedly connected to the top of the outer ring (18) of the collet.