Optical lens grabbing device

Abstract

The utility model belongs to the field of optical lens processing, and provides an optical lens grabbing device which comprises a machine table, a pair of movable sliding frames are arranged on the machine table, a lifting plate capable of moving up and down is arranged on the sliding frames, an adjusting plate is vertically arranged on the lifting plate in a sliding mode, and the adjusting plate is arranged on the machine table in a sliding mode. Two sets of adjusting grooves are formed in the adjusting plate, each adjusting groove is downwards and inwards obliquely formed, a sliding rail is arranged on the lifting plate, pulleys corresponding to the adjusting grooves are arranged on the sliding rail, and the pulleys penetrate out of the corresponding adjusting grooves and then are provided with supports. When the device is used for transferring optical lens blanks with different specifications, the position of each suction cup can be adjusted, so that the suction cups are always adsorbed to the axis positions of the optical lens blanks, if the optical lens blanks with large diameters need to be adsorbed, the adjusting plate moves upwards, and under the guide of the adjusting groove, the suction cups are moved upwards; the pulleys located in the adjusting grooves all slide outwards by a small distance, and at the moment, the gap between the adjacent suction cups becomes large.

Description

Technical Field

[0001] The utility model belongs to the field of optical lens processing, and in particular relates to an optical lens grabbing device. Background Art

[0002] Optical glass is a mixture of high-purity oxides of silicon, boron, sodium, potassium, zinc, lead, magnesium, calcium, and barium, mixed according to a specific formula. It is melted at high temperature in a platinum crucible and stirred using ultrasound to remove air bubbles. The glass is then slowly cooled over a long period of time to prevent internal stress within the glass. After cooling, the glass blocks are measured using optical instruments to verify that their purity, transparency, uniformity, refractive index, and dispersion meet specifications. Qualified glass blocks are heated and forged into optical lens blanks. These blanks are then moved along a sorting conveyor toward the discharge position, where they are arranged in rows. Once in position, an optical lens gripper is used to grab and transfer the corresponding blanks.

[0003] Existing optical lens gripping devices typically use suction cups to hold optical lens blanks. If the diameter of the optical lens blank varies, the suction cup's position will vary, resulting in an inability to consistently and stably hold the lens blank. Furthermore, the suction cup's mounting position in existing optical lens gripping devices is generally not adjustable, resulting in poor adaptability. Utility Model Content

[0004] In view of the above problems, the purpose of the present invention is to provide an optical lens grasping device, aiming to solve the problem of poor adaptability of the existing optical lens grasping device.

[0005] The utility model adopts the following technical solutions:

[0006] The optical lens grasping device includes a machine platform, a pair of movable slides are provided on the machine platform, a lifting plate that can move up and down is provided on the slide, an adjustment plate is provided on the lifting plate for vertical sliding, two groups of adjustment slots are provided on the adjustment plate, each adjustment slot is downward and tilted inward, a slide rail is provided on the lifting plate, a pulley is provided on the slide rail corresponding to each adjustment slot, the pulley passes through the corresponding adjustment slot and is provided with a bracket, a suction cup is provided downwardly on the bracket, and an adjustment cylinder for driving the adjustment plate to move vertically is also provided on the slide.

[0007] Furthermore, the inclination angles of the adjustment slots in each group of adjustment slots increase from outside to inside.

[0008] Furthermore, a lifting cylinder is provided on the slide, a slide is slidably provided on the lifting cylinder, a lifting plate is provided on the slide, and a driving shaft of the lifting cylinder is connected to the slide.

[0009] Furthermore, the machine is provided with a pair of slides, on which the slides are provided, and the machine is provided with a driving mechanism for driving the slide to slide, the driving mechanism includes a mounting frame, a screw rod is rotatably provided in the mounting frame, a screw rod sleeve is sleeved on the screw rod, the screw rod sleeve passes through the mounting frame and is connected to the slide, and the mounting frame is also provided with a driving motor for driving the screw rod to rotate.

[0010] The beneficial effect of the present invention is that when the device is used to transfer optical lens blanks of different specifications, in order to ensure stability during transfer, the position of each suction cup can be adjusted to ensure that the suction cup can always be adsorbed on the axial position of the optical lens blank. For example, when an optical lens blank with a larger diameter is to be adsorbed, the adjusting cylinder drives the adjusting plate to move upward a short distance. When the adjusting plate moves upward, under the guidance of the adjusting groove, the pulleys located in the adjusting groove slide outward a short distance, and the gap between adjacent suction cups becomes larger. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is an overall diagram of an optical lens grabbing device provided by the utility model.

[0012] Figure 2 The utility model provides a schematic diagram of the suction cup installation. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not intended to limit the utility model.

[0014] In order to illustrate the technical solution of the present invention, specific embodiments are provided below.

[0015] For the sake of convenience, only the parts related to the embodiments of the present invention are shown.

[0016] Combine Figure 1-2 As shown, the optical lens grasping device includes a machine 1, a pair of movable slides 2 are provided on the machine 1, a lifting plate 3 that can move up and down is provided on the slide 2, an adjustment plate 4 is provided on the lifting plate 3 for vertical sliding, two groups of adjustment slots 5 are provided on the adjustment plate 4, each adjustment slot 5 is downward and inclined inward, a slide rail 6 is provided on the lifting plate 3, a pulley 7 is provided on the slide rail 6 corresponding to each adjustment slot 5, the pulley 7 passes through the corresponding adjustment slot 5 and is provided with a bracket 8, a suction cup 9 is provided downwardly on the bracket 8, and an adjustment cylinder 10 for driving the adjustment plate 4 to move vertically is also provided on the slide 2.

[0017] In this embodiment, an optical lens sorting conveyor line is provided at the front end of the optical lens grabbing device. During the actual production process, qualified glass blocks are heated and forged into optical lens blanks. After cooling, the optical lens blanks fall onto the optical lens sorting conveyor line, which arranges the optical lens blanks in a row. When the rows of optical lens blanks are transported toward the discharge position, the optical lens sorting conveyor line stops conveying them. At this time, the grabbing device grabs all the optical lens blanks at the discharge position and transfers them to a tray at the rear for stacking.

[0018] When the rows of optical lens blanks are transported toward the discharge position and moved into position, the number of optical lens blanks located in the discharge position is the same as the number of suction cups, and the suction cups are arranged relative to the corresponding optical lens blanks. When the gripping device is used to transfer the optical lens blanks, the lifting plate first moves downward until the suction cups come into contact with the corresponding optical lens blanks directly below them. The suction cups adsorb the optical lens blanks, and the lifting plate moves upward and resets. Then the slide moves backward to the corresponding position directly above the tray, and the lifting plate moves downward until the transferred optical lens blanks fall onto the tray. Finally, the suction cups cancel their adsorption of the optical lens blanks, and the optical lens blanks fall onto the tray. The slide moves forward to prepare to transfer the next group of optical lens blanks.

[0019] As a priority structure, such as Figure 1 The adjustment slots in each set of adjustment slots 4 have increasing inclination angles from the outside to the inside. Optical lens blanks are generally circular, and different sizes of optical lens blanks have different diameters. When using this device to transfer optical lens blanks of different sizes, the position of each suction cup can be adjusted to ensure stability during transfer, ensuring that the suction cup is always attached to the axis of the optical lens blank.

[0020] To absorb a larger diameter optical lens blank, the adjustment cylinder drives the adjustment plate upward a short distance. As the adjustment plate moves upward, guided by the adjustment slots, the pulleys within the slots slide outward a short distance, increasing the gap between adjacent suction cups. Because the adjustment slots are evenly distributed and their angles increase from outside to inside within the same group, all suction cups move the same distance via the pulleys when the adjustment plate moves vertically, resulting in a consistent gap between adjacent suction cups.

[0021] In this structure, the carriage 2 is equipped with a lifting cylinder 11, on which a slide plate 12 is slidably mounted. The slide plate 12 is mounted on the lifting plate 3. The drive shaft of the lifting cylinder 11 is connected to the slide plate 12. When the lifting plate needs to move vertically, the lifting cylinder drives the slide plate to move vertically, and the lifting plate mounted on the slide plate moves vertically synchronously.

[0022] In addition, if Figure 1 A pair of slides 13 are provided on the machine 1, and the slides 13 are jointly provided with the slide 2. The machine 1 is provided with a driving mechanism for driving the slide 2 to slide, and the driving mechanism includes a mounting frame 14, and a screw rod (obstructed in the figure) is rotatably provided in the mounting frame 14, and a screw rod sleeve 15 is sleeved on the screw rod, and the screw rod sleeve 15 passes through the mounting frame and is connected to the slide 2. The mounting frame 14 is also provided with a driving motor 16 for driving the screw rod to rotate.

[0023] When the slide moves forward and backward, the drive motor drives the screw to rotate. When the screw rotates, the screw sleeve moves along the length direction of the screw. Driven by the screw sleeve, the slide moves forward and backward along the length direction of the screw. After moving into place, the drive motor stops rotating.

[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An optical lens grabbing device, characterized in that: The optical lens grasping device includes a machine platform, a pair of movable slides are provided on the machine platform, a lifting plate that can move up and down is provided on the slide, an adjustment plate is provided on the lifting plate for vertical sliding, two groups of adjustment slots are provided on the adjustment plate, each adjustment slot is downward and tilted inward, a slide rail is provided on the lifting plate, a pulley is provided on the slide rail corresponding to each adjustment slot, the pulley passes through the corresponding adjustment slot and is provided with a bracket, a suction cup is provided downwardly on the bracket, and an adjustment cylinder for driving the adjustment plate to move vertically is also provided on the slide.

2. An optical lens gripping device as claimed in claim 1, characterized in that: The inclination angles of the adjustment slots in each group of adjustment slots increase from outside to inside.

3. The optical lens gripping device according to claim 2, wherein: The slide is provided with a lifting cylinder, a slide is slidably provided on the lifting cylinder, a lifting plate is provided on the slide, and a driving shaft of the lifting cylinder is connected to the slide.

4. An optical lens gripping device as claimed in claim 3, characterized in that: A pair of slides are provided on the machine platform, and the slides are jointly provided on the slides. A driving mechanism for driving the slide to slide is provided on the machine platform, and the driving mechanism includes a mounting frame, a screw rod is rotatably provided in the mounting frame, a screw rod sleeve is sleeved on the screw rod, the screw rod sleeve passes through the mounting frame and is connected to the slide, and the mounting frame is also provided with a driving motor for driving the screw rod to rotate.

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