Lens feeding mechanism

Abstract

The utility model relates to the technical field of lens feeding equipment, in particular to a lens feeding mechanism which comprises a feeding platform and a material disc, a lens containing groove used for vertically containing a lens is formed in the material disc, and the material disc is movably arranged on the feeding platform. The clamping mechanism is mounted on the feeding platform and is used for clamping the vertically placed lens from the lens placing groove by clamping the outer edge of the lens; and the lens bearing jig is used for bearing the lens clamped by the clamping mechanism. By clamping the outer edges of the lenses, the lenses which are vertically placed are directly picked up, and the situation that the lenses are not prone to being polluted during material taking is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of lens feeding equipment, in particular to a lens feeding mechanism. Background Art

[0002] Optical lenses need to be installed on the lens barrel of a lidar. During installation, glue needs to be applied between the lens and the lens barrel to achieve fixation.

[0003] In the current lens feeding mechanism during the automatic feeding process of lenses, multiple trays stacked with lenses are stacked together, and the lenses in the trays are in a horizontal state. The conveying device moves the trays stacked with lenses one by one to the picking area in the feeding mechanism, and the picking part picks up the materials. When all the lenses on one tray are taken out, the conveying device removes the empty tray and then moves other trays stacked with lenses from the stack of trays to the picking area. This feeding method has a complex structure and high cost. Moreover, in the current lens feeding process, a suction nozzle is used to pick up and feed the lenses placed in a horizontal state, and the feeding method using the suction nozzle is likely to contaminate the lens surface.

[0004] Currently, in order to place more lenses in the trays, lens manufacturers choose to place the lenses vertically. If the above-mentioned existing lens feeding mechanism is used for lens feeding, the vertically placed lenses need to be manually adjusted to a horizontal state before feeding. Such a feeding method wastes manpower and is not conducive to automated production. Therefore, the lens feeding mechanism still needs to be improved. Summary of the Utility Model

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art.

[0006] To this end, the utility model provides a lens feeding mechanism suitable for clamping vertically placed lenses. The lens feeding mechanism directly adopts a vertical feeding method by clamping the outer edge of the lens, avoiding contamination of the lens surface during feeding.

[0007] According to the lens feeding mechanism of the embodiment of the utility model, it includes:

[0008] A feeding platform, and

[0009] A tray, on which a lens placement groove for vertically placing lenses is provided, and the tray is movably arranged on the feeding platform;

[0010] A clamping mechanism, which is installed on the feeding platform and clamps the vertically placed lenses from the lens placement groove by clamping the outer edge of the lens;

[0011] A lens carrying fixture for receiving the lenses clamped by the clamping mechanism.

[0012] The beneficial effects of the present utility model are as follows: in this application, the outer edge of the lens is clamped by the clamping mechanism, and the vertical material taking method is directly adopted for the lens. This vertical lens clamping method can adapt to the current mainstream lens feeding scenarios and improve the lens loading efficiency; the lenses are stacked vertically on the tray, and the side edges of the lenses are clamped for feeding, which is not easy to contaminate the lens surface; and the method of using a tray movably arranged on the loading platform for feeding has a simple loading structure and is convenient for replacing and loading the tray.

[0013] According to an embodiment of the present utility model, the lens loading mechanism further includes: a slide plate and a loading box body. The loading box body is located above the loading platform. The slide plate penetrates through the side wall of the loading box body and is slidably arranged on the loading platform, and the tray is placed on the slide plate.

[0014] According to an embodiment of the present utility model, at least two slide plates are provided, and the two slide plates slide independently and are arranged side by side in the horizontal direction.

[0015] According to an embodiment of the present utility model, a plurality of vacuum suction nozzles are arranged on each slide plate, and the plurality of vacuum suction nozzles are used to fix the tray and detect whether the tray is placed flat.

[0016] According to an embodiment of the present utility model, a limiting plate is connected to one end of the slide plate close to the clamping mechanism. When the slide plate is pulled out, the limiting plate abuts against the inner side wall of the loading box body.

[0017] According to an embodiment of the present utility model, a pin hole is arranged on the slide plate, and a jacking member is arranged on the loading platform. The output end of the jacking member is connected with a pin shaft. After the slide plate slides to the loading position, the jacking member lifts the pin shaft and inserts it into the pin hole.

[0018] According to an embodiment of the present utility model, a photoelectric sensor is arranged on the loading platform, and a baffle is arranged on the slide plate. The baffle is used to cooperate with the photoelectric sensor to judge the position state of the slide plate.

[0019] According to an embodiment of the present utility model, the clamping mechanism includes a multi-axis robotic arm, a grasping mounting plate, and a lens grasping assembly. The multi-axis robotic arm is connected to the loading platform, the grasping mounting plate is connected to the output end of the multi-axis robotic arm, and the lens grasping assembly is mounted on the grasping mounting plate.

[0020] According to an embodiment of the present utility model, the lens grasping assembly includes a Z-axis driving member and a flexible clamping jaw. The Z-axis driving member is connected to the grasping mounting plate. The Z-axis driving member controls the flexible clamping jaw to move along the Z-axis direction and grasps the lens by clamping the outer edge of the lens.

[0021] According to an embodiment of the present utility model, a detection member is provided on the Z-axis driving member, and the detection member is used to detect the opening and closing state of the flexible clamping jaw.

[0022] Other features and advantages of the present utility model will be described in the following specification, and in part, will become apparent from the specification, or will be understood by implementing the present utility model. The objectives and other advantages of the present utility model are achieved and obtained by the structures specifically pointed out in the specification, claims, and drawings.

[0023] To make the above objectives, features, and advantages of the present utility model more obvious and understandable, the following specifically presents preferred embodiments and, in conjunction with the accompanying drawings, provides a detailed description as follows. Description of the Drawings

[0024] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0025] Figure 1 It is a schematic structural diagram of the lens loading mechanism in the present utility model.

[0026] Figure 2 It is a schematic structural diagram of the material tray in the present utility model.

[0027] Figure 3 It is a schematic structural diagram of the sliding plate in the present utility model.

[0028] Figure 4 It is a schematic structural diagram of the clamping component in the present utility model.

[0029] Figure 5 It is a schematic structural diagram of the lens grasping component in the present utility model.

[0030] In the figure: 1, loading platform; 2, sliding plate; 21, limiting plate; 22, pin hole; 23, lifting member; 24, retaining piece; 25, vacuum suction nozzle; 26, photoelectric sensor; 3, material tray; 4, clamping mechanism; 41, mounting seat; 42, multi-axis robotic arm; 43, lens grasping component; 431, Z-axis driving member; 432, flexible clamping jaw; 433, detection member; 5, loading box. Detailed Embodiments

[0031] The present utility model will now be further described in detail in conjunction with the drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, and therefore only showing the components related to the present utility model.

[0032] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0033] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0034] Referring to Figures 1-5 , a lens loading mechanism includes a loading platform 1, a sliding plate 2, a tray 3, and a clamping mechanism 4. A loading box body 5 is arranged on the loading platform 1. The front and rear sides of the loading box body 5 are provided with openings. The front opening of the loading box body 5 is the incoming direction of the lens barrel. A through port corresponding to the sliding plate 2 is arranged on the left side of the loading box body 5. A support frame is connected inside the loading box body 5. A guide rail is connected to the top of the support frame. The sliding plate 2 is slidably connected to the top of the support frame through the guide rail. The sliding plate 2 penetrates the through port, and the sliding plate 2 can be extracted from the loading box body 5 through the through port.

[0035] Referring to Figure 2 , a limiting plate 21 is connected to the right end of the sliding plate 2. When the sliding plate 2 is pulled out, the limiting plate 21 abuts against the inner side wall of the loading box body 5, so as to prevent the sliding plate 2 from being completely pulled out of the loading box body 5. At this time, the empty tray 3 can be stably taken off the sliding plate 2, and the tray 3 with lenses placed thereon can be placed on the sliding plate 2.

[0036] Referring to Figure 3, a pin hole 22 is provided on the skateboard 2, a lifting member 23 is connected to the side wall of the feeding box body 5 provided with a through port, the lifting member 23 is located below the through port, the output end of the lifting member 23 is connected with a pin shaft, when the skateboard 2 slides into the feeding box body 5 and reaches the feeding position, the lifting member 23 lifts the pin shaft and inserts it into the pin hole 22. A limiting plate 21 is connected to one end of the skateboard 2 opposite to its drawing-out direction, when the skateboard 2 is drawn out, the limiting plate 21 abuts against the inner side wall of the feeding box body 5.

[0037] As Figure 2 shown, the tray 3 is installed on the skateboard 2, at least two skateboards 2 are provided, the two skateboards 2 slide independently of each other and are arranged side by side in the horizontal plane, at least one tray 3 can be placed on each skateboard 2, a positioning strip is provided on the skateboard 2, and the positioning strip is used to frame the installation position of the tray 3. A number of lens placement grooves are provided on the tray 3, and the lenses are placed vertically on the tray 3. A plurality of vacuum suction nozzles 25 are connected to the bottom of the skateboard 2, a plurality of through holes are provided on the skateboard 2, the suction heads of the vacuum suction nozzles 25 are opposite to the through holes, the vacuum suction nozzles 25 are arranged towards the tray 3. When the tray 3 is placed on the skateboard 2, it sucks the tray 3 to keep the tray 3 stable and position the tray 3. The vacuum suction nozzles 25 can detect whether the tray 3 is placed stably. The plurality of vacuum suction nozzles 25 are arranged at the same height. According to the negative pressure feedback of each vacuum suction nozzle 25, it is judged whether each vacuum suction nozzle 25 sucks the bottom of the tray 3. If the negative pressure feedback of some vacuum suction nozzles 25 has a large difference from that of other vacuum suction nozzles 25, it is judged that the tray 3 is not placed flat.

[0038] As Figure 3 shown, a photoelectric sensor 26 is connected inside the feeding box body 5, and the photoelectric sensor 26 is electrically connected to the vacuum suction nozzle 25. Specifically, the photoelectric sensor 26 includes a transmitting end and a receiving end. A blocking piece 24 is connected to the skateboard 2. When the skateboard 2 is drawn out of the feeding box body 5, the blocking piece 24 moves between the transmitting end and the receiving end, blocking the receiving end from receiving the optical signal of the transmitting end. At this time, it is judged that the skateboard 2 is drawn out of the feeding box body 5 in place, and the control end controls the vacuum suction nozzle 25 to cut off the power. At this time, it is convenient for the operator to replace the tray 3 on the skateboard 2. When the skateboard 2 is moved, the blocking piece 24 moves out from between the transmitting end and the receiving end, and the vacuum suction nozzle 25 firmly adsorbs the tray 3 on the skateboard 2 to keep its stability.

[0039] As Figure 4As shown, the clamping mechanism 4 is arranged inside the loading box body 5. The clamping mechanism 4 includes a mounting base 41, a multi-axis robotic arm 42, a grasping mounting plate, and a lens grasping assembly 43. The mounting base 41 is located on the side of the sliding plate 2 where the limiting plate 21 is installed. The grasping mounting plate is installed on the mounting base 41 through the multi-axis robotic arm 42. The lens barrel grasping assembly and the lens grasping assembly 43 are both arranged on the grasping mounting plate. The multi-axis robotic arm 42 can drive the grasping mounting plate to move along the Z-axis direction and move within the XY plane. The multi-axis robotic arm 42 can control the lens grasping assembly 43 to grasp the lenses on the tray 3.

[0040] As Figure 5 shown, the lens grasping assembly 43 includes a Z-axis driving member 431 and a flexible clamping jaw 432. The Z-axis driving member 431 is a slide cylinder. The flexible clamping jaw 432 is connected to the slide cylinder. The slide cylinder controls the flexible clamping jaw 432 to move along the Z-axis direction. The lenses are placed vertically in the tray 3, making full use of the space of the tray 3 and increasing the single feeding quantity of the tray 3. A detection member 433 is also connected to the slide cylinder. The detection member 433 is used to detect whether the material is grasped, and judges the opening and closing state of the flexible clamping jaw 432 to realize the closed-loop of taking the lens. The detection member 433 can be a photoelectric sensor. In this embodiment, the flexible clamping jaw 432 has a special airbag structure, and different actions will occur with different internal and external pressure differences. Input positive pressure: the flexible clamping jaw 432 shows a tightening trend and adaptively wraps around the outer surface of the object to complete the grasping action. Input negative pressure: the flexible clamping jaw 432 opens to release the object, realizing internal support grasping.

[0041] The implementation principle of this application is as follows:

[0042] The lenses are vertically stacked in the tray 3. The sliding plate 2 is pulled out until the limiting plate 21 abuts against the inner wall of the loading box body 5. The baffle 24 on the sliding plate 2 moves between the transmitting end and the receiving end of the photoelectric sensor 26. Multiple trays 3 with lenses stacked are placed on the sliding plate 2, and then the sliding plate 2 is pushed back into the loading box body 5. The baffle 24 moves out from between the transmitting end and the receiving end of the photoelectric sensor 26. The vacuum suction nozzle 25 sucks the tray 3 to be fixed on the sliding plate 2 to ensure the stability of the sliding plate 2 during movement. The lens grasping assembly 43 clamps the lenses vertically placed on the tray 3. When the detection member 433 detects that there is material between the flexible clamping jaws 432 and judges that the flexible clamping jaws 432 are in a closed state, the multi-axis robotic arm 42 controls the lens grasping assembly 43 to move and transfer the lenses to the next process, so that the subsequent process can perform the bonding operation on the lenses.

[0043] In summary, in this application, multiple sliding plates 2 are provided, and multiple sliding plates 2 are used for feeding alternately. The feeding structure is simple, the operation is convenient, and it is convenient to replace and load the trays.

[0044] Adapted to the feeding method in which lens manufacturers place lenses vertically, in this application, the lenses are stacked vertically on the tray 3, and the outer edge of the lens is clamped by the cooperation of the proximity sensor and the flexible gripper 432, which not only improves the efficiency of lens loading, but also the flexible gripper 432 contacts the side of the lens and is not likely to contaminate the lens surface.

[0045] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0046] Taking the above ideal embodiment of the present utility model as an inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of the present utility model. The technical scope of the present utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A lens loading mechanism, characterized in that, including a loading platform (1), and a tray (3) provided with a lens placement groove for vertically placing lenses, and the tray (3) is movably arranged on the loading platform (1); a clamping mechanism (4) installed on the loading platform (1) and clamping a vertically placed lens from the placement groove by clamping the outer edge of the lens; a lens carrying fixture for receiving the lens clamped by the clamping mechanism (4).

2. The lens loading mechanism according to claim 1, wherein, The lens loading mechanism further includes: a slide plate (2) and a loading box body (5), the loading box body (5) is located above the loading platform (1), the slide plate (2) penetrates through the side wall of the loading box body (5) and is slidably arranged on the loading platform (1), and the tray (3) is placed on the slide plate (2).

3. The lens loading mechanism according to claim 2, wherein At least two slide plates (2) are provided, and the two slide plates (2) slide independently and are arranged side by side in the horizontal direction.

4. The lens loading mechanism according to claim 2, characterized in that, A plurality of vacuum suction nozzles (25) are arranged on each slide plate (2), and the plurality of vacuum suction nozzles (25) are used for fixing the tray (3) and detecting whether the tray (3) is placed flat.

5. The lens loading mechanism according to claim 2, wherein, A limiting plate (21) is connected to one end of the slide plate (2) close to the clamping mechanism (4), and when the slide plate (2) is pulled out, the limiting plate (21) abuts against the inner side wall of the loading box body (5).

6. The lens loading mechanism according to claim 2, wherein A pin hole (22) is arranged on the slide plate (2), and a lifting member (23) is arranged on the loading platform (1), and a pin shaft is connected to the output end of the lifting member (23). After the slide plate (2) slides to the loading position, the lifting member (23) lifts the pin shaft and inserts it into the pin hole (22).

7. The lens loading mechanism according to claim 2, characterized in that, A photoelectric sensor (26) is arranged on the loading platform (1), and a baffle (24) is arranged on the slide plate (2), and the baffle (24) is used to cooperate with the photoelectric sensor (26) to judge the position state of the slide plate (2).

8. The lens loading mechanism according to claim 1, wherein The clamping mechanism (4) includes a multi-axis robotic arm (42), a grasping mounting plate and a lens grasping assembly (43), the multi-axis robotic arm (42) is connected to the loading platform (1), the grasping mounting plate is connected to the output end of the multi-axis robotic arm (42), and the lens grasping assembly (43) is installed on the grasping mounting plate.

9. The lens loading mechanism according to claim 8, characterized in that, The lens grasping assembly (43) includes a Z-axis driving member (431) and a flexible clamping jaw (432), the Z-axis driving member (431) is connected to the grasping mounting plate, and the Z-axis driving member (431) controls the flexible clamping jaw (432) to move along the Z-axis direction and grasps the lens by clamping the outer edge of the lens.

10. The lens loading mechanism according to claim 9, wherein A detection member (433) is arranged on the Z-axis driving member, and the detection member (433) is used for detecting the opening and closing state of the flexible clamping jaw (432).

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