Fixing structure for plastic lens

Abstract

A fixing structure for plastic lenses relates to the technical field of plastic lens fixing and comprises a rack, a supporting unit is mounted in the middle of the rack, a station adjusting mechanism is mounted on the inner side of the top of the rack, a side plate is fixed to the side face of a movable part of the station adjusting mechanism, and a lifting mechanism is mounted at the bottom of the side plate. A vacuumizing pump and a connecting base are arranged on the lifting portion of the lifting mechanism, the connecting base is rotationally connected with a connecting pipe through a bearing, the bottom end of the connecting pipe is fixedly communicated with a suction cup, the top of the connecting pipe is rotationally connected with an air port of the vacuumizing pump, and a vertical base is fixed to the top of the connecting base. According to the fixing structure for the plastic lens, the trouble that a worker needs to move the station of the plastic lens back and forth is avoided, meanwhile, the trouble that a clamping block and a clamping groove need to be frequently buckled or separated is avoided, time and labor are saved, and therefore the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic lens fixing, in particular to a fixing structure for plastic lenses. Background Art

[0002] Plastic lenses usually need to be polished before molding, and the plastic lenses need to be fixed during polishing;

[0003] In the prior art, the patent with the authorization publication number CN 219380348 U discloses a lens processing and fixing mechanism. When the lens needs to be polished, the lens is first sucked by a suction cup, and then the suction cup is placed into a card slot through a card block, and then the cylinder is started to extend, and the cylinder pushes the fixing block to move downward, so that the fixing block squeezes and fixes the lens, and then the motor is started, the motor drives the base to rotate, and the base drives the suction cup to rotate through the card block and the card slot, and the suction cup drives the lens to rotate, and then the grinder body is started to grind the lens. When the first grinding is completed, the grinder body is closed, the lens connected to the suction cup is taken out, and after the lens inspection is completed, the lens is put into the card slot again through the card block on the suction cup, so that the position of the lens can be made the same as the original one. The lens needs to be taken out every time it is inspected, and after the inspection is completed, the worker needs to put the suction cup into the card slot through the card block again. Such reciprocating operation is time-consuming and labor-intensive, thereby reducing the processing efficiency. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a fixing structure for plastic lenses, which avoids the trouble of workers moving the plastic lens workstations back and forth. At the same time, it avoids the trouble of frequently engaging or separating the card block and the card slot, saving time and labor, thereby improving the processing efficiency and effectively solving the problems in the background technology.

[0005] In order to achieve the purpose of the utility model, the utility model adopts the following technical solutions:

[0006] A fixing structure for plastic lenses comprises a frame, a supporting unit is installed in the middle of the frame, a station adjustment mechanism is installed on the inner side of the top of the frame, a side plate is fixed to the side of the movable part of the station adjustment mechanism, a lifting mechanism is installed at the bottom of the side plate, a vacuum pump and a connecting seat are respectively provided on the lifting parts of the lifting mechanism, the connecting seat is rotatably connected to a connecting pipe through a bearing, a suction cup is connected and fixed to the bottom end of the connecting pipe, the top of the connecting pipe is rotatably connected to the air port position of the vacuum pump, a stand is fixed on the top of the connecting seat, a driving mechanism for driving the connecting pipe to rotate is installed on the stand, a PLC controller is installed on the side of the frame, the PLC controller is electrically connected to an external power supply, and the vacuum pump is electrically connected to the PLC controller.

[0007] Furthermore, the workstation adjustment mechanism includes a guide rail and a linear motor, the end of the guide rail is fixedly connected to the frame, the linear motor is assembled on the guide rail, the side plate is fixed to the side of the linear motor, and the linear motor is electrically connected to the PLC controller.

[0008] Furthermore, the lifting mechanism includes an electric push rod and a connecting frame, the electric push rod is installed at the bottom of the side panel, the connecting frame is fixed to the telescopic end of the electric push rod, the vacuum pump is installed at the horizontal end of the connecting frame, the connecting seat is fixed to the vertical end of the connecting frame, and the electric push rod is electrically connected to the PLC controller.

[0009] Furthermore, the driving mechanism includes a servo motor, a worm wheel and a worm, the worm wheel is sleeved and fixed on the connecting tube, the worm is rotatably mounted on the stand, the worm is meshed with the worm wheel, the servo motor is mounted on the side of the stand, the output shaft of the servo motor is fixedly connected to the end of the worm, and the servo motor is electrically connected to the PLC controller.

[0010] Furthermore, the support unit includes a support platform and a rotating shaft, and the support platform is rotatably installed in the middle of the frame via the rotating shaft.

[0011] Furthermore, the support unit also includes a rib plate, and the rib plate is fixed at the connection between the support platform and the rotating shaft.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the fixing structure for plastic lenses has the following advantages: the plastic lenses are fixed by suction cups, the working height of the plastic lenses is adjusted by a lifting mechanism, and the plastic lenses are moved from a grinding station to a testing station by a station adjustment mechanism, which avoids the trouble of workers moving the plastic lens stations back and forth. At the same time, it avoids the trouble of frequently engaging or separating the card block and the card slot, saving time and effort, thereby improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at point A;

[0015] Figure 3 It is a schematic diagram of the three-dimensional bottom structure of the utility model.

[0016] In the figure: 1-frame, 2-PLC controller, 3-station adjustment mechanism, 31-guide rail, 32-linear motor, 4-lifting mechanism, 41-electric push rod, 42-connecting frame, 5-driving mechanism, 51-servo motor, 52-worm gear, 53-worm, 6-support unit, 61-support table, 62-rib plate, 63-rotating axis, 7-suction cup, 8-connecting pipe, 9-bearing, 10-vacuum pump, 11-connecting seat, 12-stand, 13-side plate. DETAILED DESCRIPTION

[0017] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0018] See also Figure 1-3 The present embodiment provides a technical solution: a fixing structure for a plastic lens, comprising a frame 1, a supporting unit 6 is installed in the middle of the frame 1, a station adjustment mechanism 3 is installed on the inner side of the top of the frame 1, a side plate 13 is fixed on the side of the movable part of the station adjustment mechanism 3, a lifting mechanism 4 is installed on the bottom of the side plate 13, and a vacuum pump 10 and a connecting seat 11 are respectively provided on the lifting parts of the lifting mechanism 4, the connecting seat 11 is rotatably connected to a connecting pipe 8 through a bearing 9, a suction cup 7 is connected and fixed to the bottom end of the connecting pipe 8, the top of the connecting pipe 8 is rotatably connected to the air port position of the vacuum pump 10, a stand 12 is fixed on the top of the connecting seat 11, and a driving mechanism 5 for driving the connecting pipe 8 to rotate is installed on the stand 12, a PLC controller 2 is installed on the side of the frame 1, the PLC controller 2 is electrically connected to an external power supply, the vacuum pump 10 is electrically connected to the PLC controller 2, the vacuum pump 10 provides vacuum adsorption force for the suction cup 7 through the connecting pipe 8, and the plastic lens is adsorbed and fixed by the suction cup 7.

[0019] The station adjustment mechanism 3 includes a guide rail 31 and a linear motor 32. The end of the guide rail 31 is fixedly connected to the frame 1. The linear motor 32 is assembled on the guide rail 31. The side plate 13 is fixed on the side of the linear motor 32. The linear motor 32 is electrically connected to the PLC controller 2. After polishing is completed, the plastic lens is lifted from the support unit 6 under the drive of the lifting mechanism 4. Then, the linear motor 32 performs linear motion on the guide rail 31, thereby moving the plastic lens to the detection station. After the detection is completed, the linear motor 32 returns to its original position. At this time, the position of the plastic lens is the same as before when it is placed again, which avoids the trouble of workers moving the plastic lens station back and forth. At the same time, it avoids the trouble of frequently engaging or separating the card block and the card slot, saving time and effort, thereby improving the processing efficiency.

[0020] The lifting mechanism 4 includes an electric push rod 41 and a connecting frame 42. The electric push rod 41 is installed at the bottom of the side panel 13. The connecting frame 42 is fixed to the telescopic end of the electric push rod 41. The vacuum pump 10 is installed at the horizontal end of the connecting frame 42. The connecting seat 11 is fixed to the vertical end of the connecting frame 42. The electric push rod 41 is electrically connected to the PLC controller 2. The telescopic end of the electric push rod 41 drives the connecting seat 11 to perform lifting and lowering movements through the connecting frame 42, thereby adjusting the working height of the plastic lens, placing and fixing the plastic lens on the support table 61, and ensuring the rationality of the design.

[0021] The driving mechanism 5 includes a servo motor 51, a worm wheel 52 and a worm 53. The worm wheel 52 is sleeved and fixed on the connecting tube 8. The worm 53 is rotatably installed on the stand 12. The worm 53 is meshed with the worm wheel 52. The servo motor 51 is installed on the side of the stand 12. The output shaft of the servo motor 51 is fixedly connected to the end of the worm 53. The servo motor 51 is electrically connected to the PLC controller 2. The output shaft of the servo motor 51 drives the worm 53 to rotate. The worm 53 is meshed with the worm wheel 52. The worm wheel 52 drives the suction cup 7 to rotate through the connecting tube 8, thereby rotating the plastic lens to cooperate with the external grinding equipment to grind the plastic lens. At the same time, when performing detection work, the rotation also facilitates the detection work.

[0022] The support unit 6 includes a support platform 61 and a rotating shaft 63. The support platform 61 is rotatably mounted in the middle of the frame 1 via the rotating shaft 63. The support platform 61 is used to support the plastic lens and cooperate with the rotation and grinding operation of the plastic lens by rotating.

[0023] The support unit 6 further includes a rib plate 62 , which is fixed at the connection between the support platform 61 and the rotating shaft 63 . The rib plate 62 is used to increase the connection strength between the support platform 61 and the rotating shaft 63 .

[0024] The working principle of a fixing structure for a plastic lens provided by the utility model is as follows: a vacuum pump 10 provides a vacuum adsorption force for a suction cup 7 through a connecting pipe 8, and the plastic lens is adsorbed and fixed by the suction cup 7. The telescopic end of the electric push rod 41 drives the connecting seat 11 to move up and down through the connecting frame 42, so as to adjust the working height of the plastic lens, and the plastic lens is placed and fixed on the supporting platform 61. The output shaft of the servo motor 51 drives the worm 53 to rotate, and the worm 53 is meshed with the worm wheel 52. The worm wheel 52 drives the suction cup 7 to rotate through the connecting pipe 8, so that the plastic lens rotates, so as to cooperate with the external grinding equipment to grind the plastic lens. After the grinding is completed, the plastic lens is lifted from the supporting platform 61 under the drive of the lifting mechanism 4, and then, the linear motor 32 performs a linear motion on the guide rail 31, so as to move the plastic lens to the detection station. After the detection is completed, the linear motor 32 returns to the original position. At this time, the position of the plastic lens is the same as the original position when it is placed again.

[0025] It is worth noting that the components disclosed in the above embodiments are all universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods. The PLC controller 2 is powered by an external power supply, and the PLC controller 2 model can be ES. The top of the connecting pipe 8 and the air port position of the vacuum pump 10 can be rotatably connected through a rotating joint, and the support table 61 can adopt a flexible workbench and a rubber structure, and its support surface adopts a flexible panel.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances, for example, the rotational connection can be a rotational connection through a bearing.

[0027] The parts of the present invention that are not described in detail are prior art. Although the present invention is specifically demonstrated and introduced in conjunction with the preferred implementation scheme, there are many methods and ways to implement the technical solution. The above is only a preferred implementation scheme of the present invention. However, technical personnel in the relevant field should understand that various changes can be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined in the attached claims, which are all within the scope of protection of the present invention.

Claims

1. A fixing structure for a plastic lens, comprising a frame (1), characterized in that: A support unit (6) is installed in the middle of the frame (1); a workstation adjustment mechanism (3) is installed on the inner side of the top of the frame (1); a side plate (13) is fixed on the side of the movable part of the workstation adjustment mechanism (3); a lifting mechanism (4) is installed on the bottom of the side plate (13); a vacuum pump (10) and a connecting seat (11) are respectively provided on the lifting parts of the lifting mechanism (4); the connecting seat (11) is rotatably connected to a connecting pipe (8) through a bearing (9); a suction cup (7) is connected and fixed to the bottom end of the connecting pipe (8); the top of the connecting pipe (8) is rotatably connected to the air port position of the vacuum pump (10); a stand (12) is fixed on the top of the connecting seat (11); a driving mechanism (5) for driving the connecting pipe (8) to rotate is installed on the stand (12); a PLC controller (2) is installed on the side of the frame (1); the PLC controller (2) is electrically connected to an external power supply; and the vacuum pump (10) is electrically connected to the PLC controller (2).

2. A fixing structure for a plastic lens according to claim 1, characterized in that: The workstation adjustment mechanism (3) comprises a guide rail (31) and a linear motor (32), the end of the guide rail (31) is fixedly connected to the frame (1), the linear motor (32) is mounted on the guide rail (31), the side plate (13) is fixed to the side of the linear motor (32), and the linear motor (32) is electrically connected to the PLC controller (2).

3. The fixing structure for a plastic lens according to claim 1, characterized in that: The lifting mechanism (4) comprises an electric push rod (41) and a connecting frame (42), the electric push rod (41) being mounted on the bottom of the side plate (13), the connecting frame (42) being fixed to the telescopic end of the electric push rod (41), the vacuum pump (10) being mounted on the horizontal end of the connecting frame (42), the connecting seat (11) being fixed to the vertical end of the connecting frame (42), and the electric push rod (41) being electrically connected to the PLC controller (2).

4. The fixing structure for a plastic lens according to claim 1, characterized in that: The driving mechanism (5) comprises a servo motor (51), a worm wheel (52) and a worm (53); the worm wheel (52) is sleeved and fixed on the connecting tube (8); the worm (53) is rotatably mounted on the stand (12); the worm (53) is meshed with the worm wheel (52); the servo motor (51) is mounted on a side of the stand (12); an output shaft of the servo motor (51) is fixedly connected to an end of the worm (53); and the servo motor (51) is electrically connected to a PLC controller (2).

5. The fixing structure for a plastic lens according to claim 1, characterized in that: The support unit (6) comprises a support platform (61) and a rotating shaft (63); the support platform (61) is rotatably mounted in the middle of the frame (1) via the rotating shaft (63).

6. A fixing structure for a plastic lens according to claim 5, characterized in that: The support unit (6) further comprises a rib plate (62), wherein the rib plate (62) is fixed at the connection between the support platform (61) and the rotating shaft (63).

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