A pressure-contact disconnect device

By using a press-touch disconnect device during the image sensor packaging process, measuring the bottom surface height of the lens and performing system compensation, the problem of inconsistent clamping height of the traditional jaw is solved, and a fast and efficient active alignment process is achieved.

CN111891496BActive Publication Date: 2025-05-06ZHUHAI CITY GUANGHAOJIE PRECISION MACHINERY
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Patent Information

Application Number
CN202010888590.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-08-28
Publication Date
2025-05-06
Estimated Expiration
2040-08-28

AI Technical Summary

Technical Problem

During the packaging process of image sensors, the traditional jaw clamping height is inconsistent, which makes it difficult to accurately adjust the relative positioning of the lens and the image sensor, affecting production efficiency.

Method used

A pressure-contact disconnection device is designed, and the system compensation is achieved by setting a pressure plate on the external jaws, and using a floating structure and compression spring, combining the disconnection signals of the upper and lower silver contacts, the bottom surface height of the lens is measured to achieve system compensation.

Benefits of technology

The device can simply grasp the bottom height of the lens, quickly complete the active alignment process, save time, improve production efficiency, and improve economic benefits.

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    Figure CN111891496B_ABST
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Abstract

The present invention aims to provide a pressure-touch disconnection device with a simple structure, capable of controlling the lens clamping height, saving AA time and improving production efficiency. The present invention comprises a fixed seat arranged on an active alignment module, a floating seat is arranged on the fixed seat in a floating manner through a floating structure, a lens placement seat is arranged on the floating seat, the lens placement seat cooperates with a pressure plate arranged on an external clamping claw, an upper silver contact is arranged on one side of the floating seat, a lower silver contact is arranged on the side of the fixed seat close to the upper silver contact, and the upper silver contact cooperates with the lower silver contact. The present invention can be applied to the technical field of automation equipment.
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Description

Technical Field

[0001] The present invention relates to the technical field of automation equipment, and in particular to a pressure-contact disconnecting device. Background Art

[0002] With the development of science and technology, the precision requirements for products during production are getting higher and higher. With the continuous increase in the resolution of image sensors and the continuous reduction in the size of single pixels, the accuracy requirements for the relative positioning of lenses and image sensors are getting higher and higher, and the current traditional packaging equipment can no longer meet them. The active calibration technology of the AA (full name is Active Alignment, which is a technology for determining the relative position of parts during assembly) process can correct the mechanical tolerance of each component to ensure the imaging quality of the camera and the consistency of the product.

[0003] In order to complete the AA process, the distance between the LENS and the sensor needs to be constantly fine-tuned during the AA process. Since the clamping height of the clamp is inconsistent each time, the lens clamping height cannot be predicted before AA, and multiple adjustments are required during AA, affecting production efficiency. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a pressure-touch disconnection device which has a simple structure, can control the lens clamping height, save AA time and improve production efficiency.

[0005] The technical solution adopted by the present invention is: the present invention includes a fixed seat arranged on an active alignment module, a floating seat is floatingly arranged on the fixed seat through a floating structure, a lens placement seat is arranged on the floating seat, the lens placement seat cooperates with a pressure plate arranged on an external clamp, an upper silver contact is arranged on one side of the floating seat, a lower silver contact is arranged on the side of the fixed seat close to the upper silver contact, and the upper silver contact cooperates with the lower silver contact.

[0006] Furthermore, the floating structure includes a connecting guide rail, a slider and a compression spring. The connecting guide rail is fixedly arranged on the fixed seat, the slider is slidably arranged on the connecting guide rail, the floating seat is fixedly connected to the slider, the upper end of the compression spring cooperates with the floating seat, and the lower end of the compression spring cooperates with the fixed seat.

[0007] Furthermore, a spring mounting seat is also provided on the fixing seat, a first countersunk hole is provided on the spring mounting seat, and the lower end of the compression spring is located in the first countersunk hole.

[0008] Furthermore, a second countersunk hole is provided at the lower end of the floating seat, and the upper end of the compression spring is sleeved in the second countersunk hole.

[0009] Furthermore, a lens placement position is provided on the lens placement seat.

[0010] Furthermore, the contact surfaces of the upper silver contact and the lower silver contact are both arc surfaces.

[0011] Furthermore, the upper silver contact is arranged on the fixed seat through an upper fixed block, and the lower silver contact is arranged on the floating seat through a lower fixed block. Both the upper fixed block and the lower fixed block are provided with a card slot, and the upper silver contact and the lower silver contact are embedded in the upper fixed block or the lower fixed block through the card slot.

[0012] Furthermore, both groove edges of the slot are provided with fixing screw holes, and the center lines of the fixing screw holes are perpendicular to the slot.

[0013] Furthermore, the active alignment module is provided with a mounting vertical plate, the mounting vertical plate is provided with a slide rail, the slide rail is slidably matched with a sliding block, the fixed seat is fixedly provided on the sliding block, and the mounting vertical plate is also provided with a lifting cylinder, and the output end of the lifting cylinder is fixedly connected to the fixed seat.

[0014] Furthermore, a connecting air nozzle is provided at the lower end of the lens placement seat, and the connecting air nozzle is connected to the lens placement position through an internal air path, and the connecting air nozzle is externally connected to negative pressure.

[0015] The beneficial effects of the present invention are as follows: a pressure plate is arranged on the external clamping jaw. When in use, the external clamping jaw moves the pressure plate to the position of the lens on the lens placement seat, and then drives the external clamping jaw to move up or down as a whole by moving the fixed seat upward, so that the pressure plate slowly contacts the upper surface of the lens. When the pressing pressure generated is greater than the floating force of the floating structure, the floating seat will move down along the connecting guide rail, and the connection between the lower silver contact and the upper silver contact will be disconnected. At this time, the IO signal will be transmitted to the industrial control system to record the rising height of the fixed seat or the downward distance of the external clamping jaw, so as to measure the height of the bottom surface of the lens, thereby performing system compensation and accelerating the AA process. As can be seen from the above, the overall structure of the present invention is simple, and the bottom surface height of the lens can be grasped, thereby performing compensation, accelerating the speed of AA, saving time, improving work efficiency, and enhancing economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the present invention from another angle;

[0018] Figure 3 yes Figure 2 A magnified view of part A;

[0019] Figure 4 It is a three-dimensional structural schematic diagram of a part of the structure of the present invention;

[0020] Figure 5 It is a three-dimensional structural schematic diagram of a partial structure of the present invention from another angle;

[0021] Figure 6 It is an exploded view of a part of the structure of the present invention;

[0022] Figure 7 It is an exploded view of a part of the structure of the present invention from another angle. DETAILED DESCRIPTION

[0023] like Figures 1 to 7 As shown, in this embodiment, the present invention includes a fixed seat 2 arranged on an active alignment module 1, a floating seat 4 is floatingly arranged on the fixed seat 2 through a floating structure 3, a lens placement seat 5 is arranged on the floating seat 4, the lens placement seat 5 is matched with a pressure plate 7 arranged on an external clamp 6, an upper silver contact 8 is arranged on one side of the floating seat 4, a lower silver contact 9 is arranged on the side of the fixed seat 2 close to the upper silver contact 8, and the upper silver contact 8 matches with the lower silver contact 9. The active alignment module 1 is used for carrying out AA work and performing AA work on the lens; the fixed seat 2 is arranged on the active alignment module 1 and is used for installing other components; the floating structure 3 is arranged on the fixed seat 2, so that the floating seat 4 obtains a floating effect, and a lens placement seat 5 is arranged on the floating seat 4, and the lens placement seat 5 is used for placing the lens; the external clamping claw 6 is used for clamping the lens, and the pressing plate 7 is used for contacting with the lens and applying force, and the upper silver contact 8 and the lower silver contact 9 are in contact under the action of the floating structure 3, which can be used to determine the position of the lens. When in use, the external clamp 6 moves the pressing plate 7 to the position of the lens on the lens placement seat 5, and then drives the fixing seat 2 to move up or press down the external clamp 6 as a whole, so that the pressing plate 7 slowly contacts the upper surface of the lens. When the pressing pressure generated is greater than the floating force of the floating structure 3, the floating seat 4 will move down, and the connection between the lower silver contact 9 and the upper silver contact 8 will be disconnected. At this time, the IO signal will be transmitted to the industrial control system to record the rising height of the fixing seat 2 or the downward moving distance of the external clamp 6, so as to measure the height of the bottom surface of the lens, thereby performing system compensation and accelerating the AA process. As can be seen from the above, the overall structure of the present invention is simple, the bottom surface height of the lens can be grasped, and compensation can be performed to accelerate the speed of AA, save time, improve work efficiency, and enhance economic benefits.

[0024] In this embodiment, the floating structure 3 includes a connecting rail 31, a slider 32 and a compression spring 33. The connecting rail 31 is fixedly arranged on the fixed seat 2, the slider 32 is slidably arranged on the connecting rail 31, the floating seat 4 is fixedly connected to the slider 32, the upper end of the compression spring 33 cooperates with the floating seat 4, and the lower end of the compression spring 33 cooperates with the fixed seat 2. The floating structure 3 adopts the connecting rail 31 and the slider 32 to achieve the sliding effect, so the sliding effect is good and the sliding precision is high, and the floating is achieved by the elasticity of the compression spring 33. When the pressing plate 7 is pressed down or the fixed seat 2 is moved up, when the pressing force is greater than the elastic force of the compression spring 33, the connection between the upper silver contact 8 and the lower silver contact 9 will be disconnected, thereby judging the height of the lens, so as to facilitate system compensation.

[0025] In this embodiment, a spring mounting seat 10 is further provided on the fixed seat 2, and a first countersunk hole 11 is provided on the spring mounting seat 10, and the lower end of the compression spring 33 is located in the first countersunk hole 11, and a second countersunk hole 12 is provided at the lower end of the floating seat 4, and the upper end of the compression spring 33 is sleeved in the second countersunk hole 12. By respectively opening the first countersunk hole 11 and the second countersunk hole 12 on the fixed seat 2 and the floating seat 4 to place the compression spring 33, the compression spring 33 can be well limited, and the compression spring 33 is not completely fixed, so it is easy to repair and replace. In actual applications, a spring with appropriate elastic force can be selected according to actual needs.

[0026] In this embodiment, a lens placement position 13 is provided on the lens placement seat 5. The lens placement position 13 is provided to facilitate the placement of the lens, so that the lens remains stable when placed, thereby ensuring the AA effect.

[0027] In this embodiment, the contact surfaces of the upper silver contact 8 and the lower silver contact 9 are both arc surfaces. The two contact end surfaces are smooth arc surfaces, which can effectively prevent wear and ensure contact conduction.

[0028] In this embodiment, the upper silver contact 8 is arranged on the fixed seat 2 through the upper fixing block 14, and the lower silver contact 9 is arranged on the floating seat 4 through the lower fixing block 15. The upper fixing block 14 and the lower fixing block 15 are both provided with a card slot 16, and the upper silver contact 8 and the lower silver contact 9 are both embedded in the upper fixing block 14 or the lower fixing block 15 through the card slot 16. The upper silver contact 8 is embedded in the upper fixing block 14 through the card slot 16, and the lower silver contact 9 is embedded in the lower fixing block 15 through the card slot 16. By means of embedding, the upper silver contact 8 and the lower silver contact 9 can be conveniently maintained and replaced.

[0029] In this embodiment, both sides of the slot 16 are provided with fixing screw holes 17, and the center line of the fixing screw hole 17 is perpendicular to the slot 16. The upper silver contact 14 and the lower silver contact 15 can be fixed by fastening screws through the fixing screw holes 17 to ensure that they will not fall off.

[0030] In this embodiment, the active alignment module 1 is provided with a mounting vertical plate 18, a slide rail 19 is provided on the mounting vertical plate 18, a sliding block 20 is slidably matched on the sliding rail 19, the fixed seat 2 is fixedly provided on the sliding block 20, and a lifting cylinder 21 is also provided on the mounting vertical plate 18, and the output end of the lifting cylinder 21 is fixedly connected to the fixed seat 2. The fixed seat 2 is slidably provided on the mounting vertical plate 18 through the sliding block 20 and the slide rail 19, and is driven by the lifting cylinder 21 to move up and down.

[0031] In this embodiment, a connecting air nozzle 22 is provided at the lower end of the lens placement seat 5, and the connecting air nozzle 22 is connected to the lens placement position 13 through an internal air path, and the connecting air nozzle 22 is externally connected to negative pressure. The connecting air nozzle 22 is externally connected to a vacuum generator, so that the lens placed on the lens placement position 13 can be firmly sucked, thereby achieving fixation.

[0032] The working process of the present invention is as follows: when the lens needs to be grasped, the external clamp moves to the position of the lens on the lens placement seat, the lifting cylinder is driven, and the fixed seat drives the whole to rise, and the pressure plate slowly contacts the upper surface of the lens. When pressing occurs, when the pressing force is greater than the supporting force that the spring can provide, the lens placement seat will move down along the connecting guide rail, and the contact between the upper silver contact and the lower silver contact will be disconnected. Then, the IO signal is transmitted to the industrial control system, and the rising height of the fixed seat at this time is recorded. The height of the bottom surface of the lens can be measured, and system compensation is performed to quickly complete the AA process.

[0033] Although the embodiments of the present invention are described with practical solutions, they do not constitute limitations on the meaning of the present invention. For those skilled in the art, it is obvious to modify the implementation scheme and combine it with other solutions based on this description.

Claims

1. A pressure-touch disconnection device, comprising a fixing seat (2) arranged on an active alignment module (1), characterized in that: A floating seat (4) is provided on the fixed seat (2) in a floating manner through a floating structure (3); a lens placement seat (5) is provided on the floating seat (4); the lens placement seat (5) cooperates with a pressure plate (7) provided on the external clamping claw (6); an upper silver contact (8) is provided on one side of the floating seat (4); a lower silver contact (9) is provided on the side of the fixed seat (2) close to the upper silver contact (8); the upper silver contact (8) cooperates with the lower silver contact (9); the floating structure (3) comprises a connecting rail (31), a slider (32) and a compression spring (33); the connecting rail (31) is fixedly provided on the fixed seat (2); the slider (32) is slidably provided on the connecting rail (31); the floating seat (4) is fixedly connected to the slider (32); the upper end of the compression spring (33) cooperates with the floating seat (4); and the lower end of the compression spring (33) is provided on the floating seat (4). The upper silver contact (8) is arranged on the fixed seat (2) through an upper fixed block (14), and the lower silver contact (9) is arranged on the floating seat (4) through a lower fixed block (15). The upper fixed block (14) and the lower fixed block (15) are both provided with a slot (16), and the upper silver contact (8) and the lower silver contact (9) are both embedded in the upper fixed block (14) or The lower fixed block (15) is provided with a mounting vertical plate (18) on the active alignment module (1), a slide rail (19) is provided on the mounting vertical plate (18), a sliding block (20) is slidably matched on the slide rail (19), the fixed seat (2) is fixedly arranged on the sliding block (20), and a lifting cylinder (21) is also provided on the mounting vertical plate (18), and the output end of the lifting cylinder (21) is fixedly connected to the fixed seat (2).

2. A pressure-contact disconnecting device according to claim 1, characterized in that: A spring mounting seat (10) is also provided on the fixing seat (2), and a first countersunk hole (11) is provided on the spring mounting seat (10), and the lower end of the compression spring (33) is located in the first countersunk hole (11).

3. A pressure-contact disconnecting device according to claim 1, characterized in that: A second countersunk hole (12) is provided at the lower end of the floating seat (4), and the upper end of the compression spring (33) is sleeved in the second countersunk hole (12).

4. A pressure-contact disconnecting device according to claim 1, characterized in that: The lens placement seat (5) is provided with a lens placement position (13).

5. A pressure-contact disconnecting device according to claim 1, characterized in that: The contact surfaces of the upper silver contact (8) and the lower silver contact (9) are both arc surfaces.

6. A pressure-contact disconnecting device according to claim 1, characterized in that: Both groove edges of the clamping groove (16) are provided with fixing screw holes (17), and the center lines of the fixing screw holes (17) are perpendicular to the clamping groove (16).

7. A pressure-contact disconnecting device according to claim 4, characterized in that: A connecting air nozzle (22) is provided at the lower end of the lens placement seat (5); the connecting air nozzle (22) is connected to the lens placement position (13) via an internal air path; and the connecting air nozzle (22) is externally connected to negative pressure.

Citation Information

Patent Citations

  • Mark welding set fast

    CN205817034U

  • Pressure contact disconnecting device

    CN212862115U