Lens pressing device

Abstract

The invention provides a lens pressing device, and belongs to the technical field of machinery. The problem of poor stability in the prior art is solved. The lens pressing device comprises a rack, the rack is provided with an operation platform, the operation platform comprises a first operation part and a second operation part which are adjacent left and right in the horizontal direction, the first operation part is used for positioning and placing a workpiece, the second operation part is used for placing a lens, and the lens pressing device further comprises a grabbing assembly arranged at the second operation part. The grabbing assembly can grab the lens at the second working part and install the lens at the first working part, the installation position of the lens at the first working part is A, the position of the lens temporarily stored at the second working part is B, and A and B are adjacent front and back. The lens pressing device is high in stability.

Description

Technical Field

[0001] The present invention belongs to the technical field of machinery and relates to a lens pressing device. Background Art

[0002] In the operation process of installing a lens on a corresponding workpiece, due to the relatively large dimensional tolerance of the current workpiece in shape processing, when using the product shape for positioning, the lens assembly yield is relatively low.

[0003] Now, by using two concentric circles of the lens in the product to position the concentric circles, the cumulative tolerance of the product is reduced, thereby increasing the product assembly yield.

[0004] Chinese Patent Publication No. CN217502212U discloses a lens pressing device for a tablet computer, including a positioning module, an upper pressing module, and a jacking module. The positioning module includes a positioning plate, a vacuum chuck, a positioning block, and a side push cylinder. The telescopic end of the side push cylinder points to the positioning block. The positioning plate is provided with a receiving groove that matches the lens frame of the tablet computer, and the receiving groove has a through hole that matches the lens hole of the lens frame. The upper pressing module includes a heating block and a guide rail assembly that drives the heating block to move above the receiving groove. The heating block is elastically connected to the guide rail assembly. The jacking module is arranged below the positioning plate and includes a pressing block driven by a jacking cylinder to press against the receiving groove. The pressing block is elastically connected to the driving end of the jacking cylinder. The heating block of the lower pressing module and the pressing block of the jacking module provided in the present invention can press and support the lens frame fittings, improving the pressing and curing effect.

[0005] It can be seen that the above patent only solves the pressing of the lens and the workpiece. In the overall operation process, the lens needs to be manually placed additionally, and its automation degree is not high, and the corresponding operation efficiency is also relatively low. Manually placing the lens not only cannot guarantee the finished product rate, but also has certain safety hazards during the operation process. Summary of the Invention

[0006] The purpose of the present invention is to provide a lens pressing device that can automatically and accurately install a lens on a workpiece in view of the above problems existing in the prior art.

[0007] The purpose of the present invention can be achieved by the following technical solutions: A lens pressing device includes a frame. It is characterized in that the frame has an operation platform. The operation platform includes operation part one and operation part two adjacent to each other in the left-right horizontal direction. Operation part one is used for positioning and placing the workpiece, and operation part two is used for placing the lens. It also includes a grasping assembly arranged at operation part two. The grasping assembly can grasp the lens at operation part two and install it at operation part one. The installation position of the lens at operation part one is A, and the temporary storage position of the lens at operation part two is B. A and B are adjacent to each other front and back.

[0008] In the above lens pressing device, A is located at the front of Working Unit 1, and B is located at the front of Working Unit 2.

[0009] In the above lens pressing device, on Working Unit 1, there are several protruding limiting edges 1 in the transverse direction and several protruding limiting edges 2 in the longitudinal direction. It also includes a positioning component 1 and a positioning component 2 connected to Working Unit 1. The above positioning component 1 is adjacent to the limiting edge 1 on the left and right, and the above positioning component 2 is adjacent to the limiting edge 2 in the front and back.

[0010] In the above lens pressing device, the positioning component 1 includes a driving part 1 and a pressing block 1. The driving part 1 is fixedly connected to Working Unit 1, and the above pressing block 1 is connected to the driving part 1. The driving part 1 can drive the pressing block 1 to move left and right relative to the limiting edge 1.

[0011] In the above lens pressing device, the positioning component 2 includes a driving part 2 and a pressing block 2. The driving part 2 is fixedly connected to Working Unit 1, and the above pressing block 2 is connected to the driving part 2. The driving part 2 can drive the pressing block 2 to move back and forth relative to the limiting edge 2.

[0012] In the above lens pressing device, the grasping component includes a bracket, a guide rail, a slider, and an adsorption mechanism. The above bracket is fixedly connected to the upper part of Working Unit 2. The above guide rail is horizontally arranged on the bracket. The above slider is connected to the guide rail, and the above adsorption mechanism is fixedly connected to the slider.

[0013] In the above lens pressing device, the adsorption mechanism includes a vacuum suction rod, a lifting block, and a driving part 3. The above driving part 3 is fixedly connected to the slider. The above lifting block is connected to the driving part 3 and the driving part 3 can drive the lifting block to move up and down horizontally. The above vacuum suction rod is fixedly connected to the lower part of the lifting block.

[0014] In the above lens pressing device, a proximity switch 1 and a proximity switch 2 are fixedly connected to the bracket. The above proximity switch 1 and proximity switch 2 are respectively located at both ends of the guide rail. When the slider moves and triggers the proximity switch 1, the above adsorption mechanism is directly above position B of Working Unit 2. When the slider moves and triggers the proximity switch 2, the above adsorption mechanism is directly above position A of Working Unit 1.

[0015] In the above lens pressing device, it also includes a driving part 4 and a pressing plate. The above driving part 4 is fixedly connected to Working Unit 2. The above pressing plate is located at the upper part of Working Unit 2 and the inner end of the pressing plate is connected to the driving part 4. The outer end of the pressing plate is directly above position A of Working Unit 1.

[0016] In the above lens pressing device, the outer end of the pressing plate has a through calibration hole. A calibration component is also fixedly connected to Working Unit 2. The calibration component can perform position calibration on the lens located at the calibration hole.

[0017] In the above lens pressing device, the calibration assembly includes a fifth driving member, a calibration needle, a guiding cylinder, and a spring. The guiding cylinder is fixedly connected to the lower part of the second working unit. The middle part of the calibration needle is disposed inside the guiding cylinder. The lower end of the calibration needle extends out of the guiding cylinder. The fifth driving member is fixedly connected to the machine frame and is movably connected to the lower end of the calibration needle. The spring is sleeved on the calibration needle, and two ends of the spring respectively act on the calibration needle and the guiding cylinder. Under the elastic force of the spring, the upper end of the calibration needle has a tendency to extend into the calibration hole.

[0018] In the above lens pressing device, the fifth driving member includes a cylinder and a pulling plate. The cylinder is fixedly connected to the machine frame. The pulling plate is transversely disposed, and the inner end of the pulling plate is fixedly connected to the piston rod of the cylinder. The outer end of the pulling plate has a through connection hole. The calibration needle is disposed through the connection hole of the pulling plate. The lower end of the calibration needle has a protruding retaining edge, and the retaining edge has a tendency to abut against the outer end of the pulling plate.

[0019] Compared with the prior art, during the operation of placing the lens on the workpiece in the present lens pressing device, the lens and the workpiece are mainly stably pressed and assembled by the adsorption assembly and the calibration assembly. The degree of automation during the assembly operation is high. Moreover, since the workpiece is independently positioned, the assembly quality can be guaranteed. Fundamentally, the problem of low yield rate of lens assembly caused by the influence of the workpiece shape during positioning of the workpiece is solved.

[0020] Meanwhile, the first working unit and the second working unit at the working platform are adjacently disposed. That is to say, the positioning of the workpiece and the arrangement of the adsorption assembly are relatively independent. Therefore, the whole device has a compact structure and high practical value. Description of the Drawings

[0021] Figure 1 is a three-dimensional structural schematic diagram of the present lens pressing device.

[0022] Figure 2 is a three-dimensional structural schematic diagram of the present lens pressing device when the workpiece is not installed.

[0023] Figure 3 is a cross-sectional structural schematic diagram of the present lens pressing device.

[0024] In the figure, 1. Machine frame; 2. First working unit; 2a. First limiting edge; 2b. Second limiting edge; 3. First driving member; 4. First pressing block; 5. Second driving member; 6. Second pressing block; 7. Second working unit; 8. Support; 9. Guide rail; 10. Slide block; 11. Vacuum suction rod; 12. Lifting block; 13. Third driving member; 14. First proximity switch; 15. Second proximity switch; 16. Fourth driving member; 17. Pressing plate; 17a. Calibration hole; 18. Fifth driving member; 18a. Cylinder; 18b. Pulling plate; 19. Calibration needle; 19a. Retaining edge; 20. Guiding cylinder; 21. Spring; 22. Lens; 23. Workpiece. Detailed Embodiments

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] It should be noted that when a component is referred to as being "installed on" another component, it can be directly installed on the other component or there may also be an intermediate component. When a component is considered to be "arranged on" another component, it can be directly arranged on the other component or there may be an intermediate component at the same time. When a component is considered to be "fixed to" another component, it can be directly fixed to the other component or there may be an intermediate component at the same time.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more of the related listed items.

[0028] As Figure 1 and Figure 2 and Figure 3 As shown, the lens pressing device includes a frame 1, and the frame 1 has a working platform. The working platform includes a first working part 2 and a second working part 7 adjacent to each other in the left-right horizontal direction. The first working part 2 is used for positioning and placing a workpiece, and the second working part 7 is used for placing a lens 22. It further includes a grasping component arranged at the second working part. The above-mentioned grasping component can grasp the lens at the second working part and install it at the first working part. The installation position of the lens at the first working part is A, and the temporary storage position of the lens at the second working part is B. The above A and B are adjacent to each other front and back.

[0029] A is located at the front part of the first working part 2, and B is located at the front part of the second working part 7.

[0030] Although the first working part 2 and the second working part 7 are located at the same working platform, their functions and roles are independent of each other. Through the interaction of the grasping component on the first working part 2 and the second working part 7, the lens is finally stably pressed and connected to the workpiece.

[0031] Specifically, the position B at the second working part 7 is used for temporarily storing the lens 22. The lens at the position B is grasped by the grasping component, and the grasped lens 22 is conveyed to the position A of the first working part.

[0032] Since the first working unit 2 can stably position the workpiece 23, and the position A on the workpiece 23 is the installation position of the lens 22, the lens 22 can be quickly and accurately installed on the workpiece 23 by the grasping component.

[0033] The positions A and B are arranged front and back, and the grasping component only needs to translate linearly to complete the installation operation.

[0034] The first working unit 2 has a plurality of protruding limiting edges 2a in the horizontal direction and a plurality of protruding limiting edges 2b in the vertical direction. It also includes a first positioning component and a second positioning component connected to the first working unit 2. The first positioning component is adjacent to the limiting edge 2a on the left and right, and the second positioning component is adjacent to the limiting edge 2b in the front and back.

[0035] The first positioning component includes a first driving part 3 and a first pressing block 4. The first driving part 3 is fixedly connected to the first working unit 2, and the first pressing block 4 is connected to the first driving part 3. The first driving part 3 can drive the first pressing block 4 to move left and right relative to the limiting edge 2a.

[0036] The second positioning component includes a second driving part 5 and a second pressing block 6. The second driving part 5 is fixedly connected to the first working unit 2, and the second pressing block 6 is connected to the second driving part 5. The second driving part 5 can drive the second pressing block 6 to move back and forth relative to the limiting edge 2b.

[0037] The left and right sides of the workpiece 23 are respectively pressed tightly by the limiting edge 2a and the first pressing block 4, and the front and back sides of the workpiece 23 are respectively pressed tightly by the limiting edge 2b and the second pressing block 6. It can be seen that the four sides of the workpiece 23 are respectively limited, and finally the workpiece 23 can be stably positioned at the first working unit 2.

[0038] The grasping component includes a bracket 8, a guide rail 9, a slider 10 and an adsorption mechanism. The bracket 8 is fixedly connected to the upper part of the second working unit 7. The guide rail 9 is horizontally arranged on the bracket 8. The slider 10 is connected to the guide rail 9. The adsorption mechanism is fixedly connected to the slider 10.

[0039] Of course, there is a driving part on the bracket 8 for driving the slider 10. When the driving part drives the slider 10 to translate along the guide rail 9, the adsorption mechanism located on the slider 10 moves together. Finally, the left and right movement of the adsorption mechanism is realized, and the lens 22 at position B is stably transported to position A by the adsorption mechanism.

[0040] The adsorption mechanism includes a vacuum suction rod 11, a lifting block 12 and a third driving part 13. The third driving part 13 is fixedly connected to the slider 10. The lifting block 12 is connected to the third driving part 13 and the third driving part 13 can drive the lifting block 12 to translate up and down. The vacuum suction rod 11 is fixedly connected to the lower part of the lifting block 12.

[0041] In the initial state, the vacuum suction rod 11 is above position B and position A. After the vacuum suction rod 11 is directly above position B, the third driving member 13 drives the lifting block 12 to move downward, and the vacuum suction rod 11 located on the lifting block 12 moves downward together. The downward-moving vacuum suction rod 11 completes the adsorption operation on the lens 22.

[0042] After the lens 22 is adsorbed, the entire adsorption mechanism moves upward. When the lens 22 to be adsorbed moves to directly above position A, the adsorption mechanism moves downward, so as to stably install the lens 22 on the workpiece 23 at position A.

[0043] A proximity switch one 14 and a proximity switch two 15 are fixedly connected to the bracket 8. The proximity switch one 14 and the proximity switch two 15 are respectively located at both ends of the guide rail 9. When the slider 10 moves and triggers the proximity switch one 14, the above adsorption mechanism is directly above the working part two B position. When the slider 10 moves and triggers the proximity switch two 15, the above adsorption mechanism is directly above the working part one A position.

[0044] After the slider 10 triggers the corresponding proximity switch, the adsorption action of the adsorption mechanism is realized and the installed action of the adsorbed lens 22 is completed.

[0045] It further includes a fourth driving member 16 and a pressing plate 17. The fourth driving member 16 is fixedly connected to the working part two 7. The pressing plate 17 is located above the working part two 7 and the inner end of the pressing plate 17 is connected to the fourth driving member 16. The outer end of the pressing plate 17 is directly above the working part one A position.

[0046] In the initial state, the pressing plate 17 moves upward. After the workpiece 23 is installed at the working part one 2, the fourth driving member 16 drives the pressing plate 17 to move downward, and the workpiece 23 is tightly pressed by the pressing plate 17 to prevent the workpiece 23 from loosening during the installation operation.

[0047] The outer end of the pressing plate 17 has a through calibration hole 17a. A calibration component is also fixedly connected to the working part two 7. The calibration component can perform position calibration on the lens 22 located at the calibration hole 17a.

[0048] By appropriately calibrating the position of the lens 22 through the calibration component, it is ensured that the lens 22 can be accurately installed on the workpiece 23.

[0049] The calibration component includes a fifth driving member 18, a calibration needle 19, a guiding cylinder 20, and a spring 21. The guiding cylinder 20 is fixedly connected to the lower part of the second operating unit 7. The middle part of the calibration needle 19 is arranged inside the guiding cylinder 20, and the lower end of the calibration needle 19 extends out of the guiding cylinder 20. The fifth driving member 18 is fixedly connected to the frame 1 and is movably connected to the lower end of the calibration needle 19. The spring 21 is sleeved on the calibration needle 19, and the two ends of the spring 21 respectively act on the calibration needle 19 and the guiding cylinder 20. Under the elastic force of the spring 21, the upper end of the calibration needle 19 has a tendency to extend into the calibration hole 17a.

[0050] In the initial state, under the elastic force of the spring 21, the upper end of the calibration needle 19 is located inside the calibration hole 17a, and during the pressing process, the lens 22 can gradually contact the workpiece 23, avoiding the skew of the lens 22 during the installation process.

[0051] The fifth driving member 18 includes a cylinder 18a and a pulling plate 18b. The cylinder 18a is fixedly connected to the frame 1. The pulling plate 18b is arranged horizontally, and the inner end of the pulling plate 18b is fixedly connected to the piston rod of the cylinder 18a. The outer end of the pulling plate 18b has a through connection hole, and the calibration needle 19 is arranged at the connection hole of the pulling plate 18b. The lower end of the calibration needle 19 has a protruding stop edge 19a, and the stop edge 19a has a tendency to abut against the outer end of the pulling plate 18b.

[0052] After the lens 22 and the workpiece 23 are pressed together, the fifth driving member 18 drives the pulling plate 18b to move downward, and the pulling plate 18b pulls the calibration needle 19 to move downward, so that the calibration needle can stably disengage from the formed workpiece.

[0053] During the operation of placing the lens into the workpiece by this lens pressing device, the lens and the workpiece are stably pressed and assembled mainly by the adsorption component and the calibration component. The degree of automation during the assembly operation is high, and since the workpiece is independently positioned, the assembly quality can be guaranteed. Fundamentally, it solves the problem of low yield rate of lens assembly caused by the influence of the workpiece shape on the positioning of the workpiece.

[0054] At the same time, the first operating unit and the second operating unit at the operating platform are arranged adjacent to each other. That is to say, the positioning of the workpiece and the setting of the adsorption component are relatively independent. Therefore, the whole device has a compact structure and high practical value.

[0055] It can be seen that although the positioning components one and two of this device are used to position the workpiece, the calibration hole of the pressing plate is always directly above the position A of the workpiece. Therefore, under the action of the pressing plate, the lens can be stably installed at the position A of the workpiece. That is, even if the actual installation position has an offset due to the processing dimensions of the workpiece itself after positioning. Under the action of the calibration hole of the pressing plate and the calibration component, the lens can be stably installed at the set position of the workpiece, effectively improving its installation yield rate.

[0056] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as falling within the scope described in this specification.

[0057] Those of ordinary skill in the art of this technology should recognize that the above embodiments are only used to illustrate the present invention, rather than to limit the present invention. As long as it is within the scope of the spirit of the present invention, appropriate changes and variations made to the above embodiments fall within the scope of protection required by the present invention.

Claims

1. A lens pressing device, comprising a frame (1), characterized in that: The frame (1) has a working platform, the working platform comprising a working section 1 (2) and a working section 2 (7) adjacent to each other in the horizontal direction, the working section 1 (2) being used to position and place a workpiece (23), the working section 2 (7) being used to place a lens (22), and further comprising a grabbing assembly arranged at the working section 2 (7), the grabbing assembly being capable of grabbing the lens (22) at the working section 2 (7) and installing it at the working section 1 (2), the installation position of the lens (22) at the working section 1 (2) being A, the position of the lens (22) temporarily stored at the working section 2 (7) being B, and the A and B being adjacent to each other front and back.

2. The lens pressing device according to claim 1, characterized in that: The A is located at the front of the working part 1 (2), and the B is located at the front of the working part 2 (7).

3. The lens pressing device according to claim 2, characterized in that: The working part 1 (2) has a plurality of protruding limit edges 1 (2a) in the transverse direction, and a plurality of protruding limit edges 2 (2b) in the longitudinal direction, and further comprises a positioning assembly 1 and a positioning assembly 2 connected to the working part 1 (2), wherein the positioning assembly 1 is adjacent to the limit edge 1 (2a) in the left and right directions, and the positioning assembly 2 is adjacent to the limit edge 2 (2b) in the front and back directions.

4. The lens pressing device according to claim 3, characterized in that: The positioning assembly 1 comprises a driving member 1 (3) and a pressing block 1 (4), wherein the driving member 1 (3) is fixedly connected to the working portion 1 (2), and the pressing block 1 (4) is connected to the driving member 1 (3), and the driving member 1 (3) can drive the pressing block 1 (4) to move left and right relative to the limiting edge 1 (2a).

5. The lens pressing device according to claim 4, characterized in that: The positioning assembly 2 comprises a driving member 2 (5) and a pressing block 2 (6). The driving member 2 (5) is fixedly connected to the working part 1 (2). The pressing block 2 (6) is connected to the driving member 2 (5). The driving member 2 (5) can drive the pressing block 2 (6) to move forward and backward relative to the limiting edge 2 (2b).

6. The lens pressing device according to claim 5, characterized in that: The grabbing assembly comprises a bracket (8), a guide rail (9), a slider (10) and an adsorption mechanism, wherein the bracket (8) is fixedly connected to the upper part of the second working part (7), the guide rail (9) is transversely arranged on the bracket (8), the slider (10) is connected to the guide rail (9), and the adsorption mechanism is fixedly connected to the slider (10).

7. The lens pressing device according to claim 6, characterized in that: The adsorption mechanism comprises a vacuum suction rod (11), a lifting block (12) and a third driving member (13); the third driving member (13) is fixedly connected to the slider (10); the lifting block (12) is connected to the third driving member (13) and the third driving member (13) can drive the lifting block (12) to move vertically; the vacuum suction rod (11) is fixedly connected to the lower part of the lifting block (12).

8. The lens pressing device according to claim 7, characterized in that: The bracket (8) is fixedly connected with a proximity switch 1 (14) and a proximity switch 2 (15). The proximity switch 1 (14) and the proximity switch 2 (15) are respectively located at two ends of the guide rail (9). When the slider (10) moves and triggers the proximity switch 1 (14), the adsorption mechanism is located directly above the position B of the operating part 2. When the slider moves and triggers the proximity switch 2 (15), the adsorption mechanism is located directly above the position A of the operating part 1.

9. The lens pressing device according to claim 8, characterized in that: It also includes a driving member four (16) and a pressure plate (17), wherein the driving member four (16) is fixedly connected to the working part two (7), the pressure plate (17) is located on the upper part of the working part two (7), and the inner end of the pressure plate (17) is connected to the driving member four (16), and the outer end of the pressure plate (17) is located directly above the position A of the working part one.

10. The lens pressing device according to claim 9, characterized in that: The outer end of the pressing plate (17) has a penetrating correction hole (17a), and the second operating portion (7) is also fixedly connected with a correction component, which can perform position correction on the lens (22) located at the correction hole (17a).

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