AF camera module automatic focusing machine
By introducing an electric telescopic rod-driven cover plate sliding clamping assembly and an adaptive clamping system into the AF camera module autofocusing machine, the problem of focusing parameter failure caused by the position movement of the camera module during rotation is solved, achieving efficient and stable focusing operation and simple equipment maintenance.
Patent Information
- Application Number
- CN202520161857.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-01-24
AI Technical Summary
During the manufacturing process of AF camera modules, the camera modules are easily affected by interference factors during rotation, which can cause positional shifts, resulting in the failure of focus parameters and reduced focusing efficiency.
An automatic focusing machine is adopted, which includes a worktable, fixing parts, cover plate, clamping components and power components. The cover plate is driven to slide by an electric telescopic rod. Combined with the adaptive clamping of the clamping rod and compression spring, it can achieve precise centering and stable clamping of the camera module. Rubber sleeves are used to avoid scratches and support quick replacement of the rubber sleeves.
It improves focusing accuracy and stability, increases the efficiency of the focusing process, simplifies equipment maintenance, and reduces downtime caused by replacing the rubber sleeve.
Smart Images
Figure CN223928405U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of camera module processing, and in particular to an AF camera module automatic focusing machine. Background Technology
[0002] An AF (Auto-Focus) camera module autofocus system is a device specifically designed for automatically adjusting the focus of a camera module. Through precise mechanical movement and an optical detection system, it can quickly and accurately adjust the lens focal length of the camera module, ensuring sharp images are captured.
[0003] During the AF processing, the state of the camera module has a complex impact on the focusing process. Due to the needs of the processing technology or equipment operation, the camera module often needs to be rotated during the AF processing. During the rotation, the module is easily affected by various factors, such as the centrifugal force generated by the rotation and the friction between the module and the processing equipment.
[0004] These interference factors are very likely to cause the camera module to move. During the focusing process, the focusing system needs a relatively stable target to accurately adjust the focal length. However, the unexpected movement of the module makes the originally set focusing parameters invalid, and the focusing system has to re-detect and adjust, thereby reducing the focusing efficiency. To solve this problem, an AF camera module autofocusing machine is proposed. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides an AF camera module autofocus machine, which aims to improve the problem in the prior art that "unexpected movement of the module causes the originally set focus parameters to fail, and the focus system has to re-detect and adjust, thereby reducing the focusing efficiency".
[0006] To achieve the above objectives, this utility model adopts the following technical solution: an AF camera module automatic focusing machine, including a worktable, a fixing component is provided on the inner side of the worktable, a cover plate is provided on the upper side of the fixing component, and a centering mechanism is provided on the outer side of the fixing component. The centering mechanism includes a clamping assembly and a power assembly. The clamping assembly includes a moving plate, which is slidably connected to the inner wall of the fixing component. A guide groove is provided through the upper side of the moving plate, and a connecting cylinder is fixedly connected to the lower side of the moving plate. A clamping rod is slidably connected to the inner wall of the connecting cylinder, and the clamping rod and the connecting cylinder are elastically connected by a compression spring.
[0007] As a further description of the above technical solution:
[0008] The power assembly includes an electric telescopic rod, which is disposed on the inner wall of the rear side of the fixing member. The output shaft of the electric telescopic rod is fixedly connected to the rear part of the cover plate. A sliding groove is provided on the upper side of the fixing member. The cover plate slides on the inner wall of the sliding groove. A guide member is slidably connected to the inner wall of the sliding groove. A sliding rod is fixedly connected to the rear side of the guide member. The rear side of the sliding rod slides on the lower inner wall of the cover plate. The lower side of the guide member slides on the inner wall of the guide groove.
[0009] As a further description of the above technical solution:
[0010] The inner wall of the fixing component is provided with a stabilizing rod, and the movable plate slides through the outer side of the movable plate.
[0011] As a further description of the above technical solution:
[0012] The rear side of the guide groove is inclined.
[0013] As a further description of the above technical solution:
[0014] The clamping rod slides on the inner wall of the fixing member. There are two sets of clamping rods, and the two sets of clamping rods are symmetrically arranged with the center line of the fixing member as the axis of symmetry.
[0015] As a further description of the above technical solution:
[0016] The slide groove is provided in two sets, and the two sets of slide groove are respectively arranged on the left and right sides of the fixing member.
[0017] As a further description of the above technical solution:
[0018] An auxiliary component is provided on the outside of the clamping rod. The auxiliary component includes a rubber sleeve that is fitted onto the outside of the clamping rod. A bolt is provided through the upper side of the rubber sleeve, and the lower side of the bolt is threaded to the upper inner wall of the clamping rod.
[0019] As a further description of the above technical solution:
[0020] The sleeve is made of rubber.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, the movement of the cover plate drives two sets of clamping rods to clamp and center the camera module, and the compression spring performs adaptive adjustment, so that the entire focusing system can cope with a variety of camera modules of different specifications, improving the focusing accuracy, stability and efficiency of the entire focusing process.
[0023] 2. In this utility model, by using the auxiliary components and clamping rods together, when it is necessary to maintain or replace the rubber sleeve on the clamping rod, the limiting position of the rubber sleeve can be quickly released by rotating the bolt, thereby enabling rapid replacement, improving the overall efficiency of equipment maintenance, and reducing equipment downtime caused by rubber sleeve maintenance and replacement. Attached Figure Description
[0024] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;
[0025] Figure 2 This is a three-dimensional structural diagram of the fixing component and the cover plate in this utility model;
[0026] Figure 3 This is a three-dimensional structural diagram of the guide member and slide rod in this utility model;
[0027] Figure 4 This is a three-dimensional cross-sectional view of the fixing component from the right side in this utility model.
[0028] Figure 5 This is a top view of the three-dimensional structure of the fixing component in this utility model;
[0029] Figure 6 This is a three-dimensional structural diagram showing the disassembled clamping rod and compression spring in this utility model.
[0030] Legend:
[0031] 1. Workbench; 2. Fixing component; 3. Cover plate; 31. Electric telescopic rod; 32. Guide component; 33. Slide groove; 41. Moving plate; 42. Guide groove; 43. Connecting cylinder; 44. Clamping rod; 45. Compression spring; 51. Rubber sleeve; 52. Bolt; 6. Slide rod. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Reference Figure 1 - Figure 3This utility model provides an embodiment of an AF camera module autofocus machine, including a worktable 1, which is the basic support structure of the entire autofocus machine. A fixing member 2 is provided on the inner side of the worktable 1 to support the camera module for focusing. A cover plate 3 is provided on the upper side of the fixing member 2. Driven by an electric telescopic rod 31, the cover plate 3 can slide within the groove 33 of the fixing member 2 to limit the upper and lower sides of the camera module. The cover plate 3 also has a transparent window for calibration. A centering mechanism is provided on the outer side of the fixing member 2. The centering mechanism includes a clamping component and a power component. The clamping component includes a moving plate. 41 is used to drive the connecting cylinder 43 to move. The moving plate 41 is slidably connected to the inner wall of the fixing member 2 to ensure stable movement during operation. A guide groove 42 is provided through the upper side of the moving plate 41. The rear side of the guide groove 42 is inclined. When the guide member 32 slides in it, the moving plate 41 will move towards the middle of the fixing member 2 due to the existence of the inclined part. This realizes the clamping and centering action of the clamping rod 44 on the camera module. This enables the entire focusing system to cope with various camera modules of different specifications, improving the accuracy, stability and efficiency of the focusing process.
[0034] Reference Figure 1 , Figure 2 and Figure 4 A connecting cylinder 43 is fixedly connected to the lower side of the movable plate 41, providing a sliding space for the clamping rod 44. Through its cooperation with the clamping rod 44 and the action of the compression spring 45, the clamping rod 44 can elastically extend and retract within a certain range, thus adaptively clamping camera modules of different sizes or with certain positional deviations. The clamping rod 44 is slidably connected to the inner wall of the connecting cylinder 43. Driven by the movable plate 41 and adjusted elastically by the compression spring 45, it can stably and adaptively clamp the camera module from both sides, accurately holding the module... Positioned in the center to ensure accurate focusing, the clamping rod 44 and the connecting cylinder 43 are elastically connected by a compression spring 45. One side is fixedly connected to the outside of the clamping rod 44, and the other side is fixedly connected to the inner wall of the connecting cylinder 43, which plays the role of elastic connection between the clamping rod 44 and the connecting cylinder 43. When the clamping rod 44 is subjected to external forces, such as changes in the size or position of the camera module, the compression spring 45 can absorb these changes through its own extension and contraction, so that the clamping rod 44 always maintains a suitable clamping force, avoiding damage to the camera module, and ensuring the centering effect.
[0035] Reference Figure 1 - Figure 3The power component includes an electric telescopic rod 31, which can precisely extend and retract according to a control signal. By driving the cover plate 3 to slide within the groove 33 of the fixing member 2, it provides the necessary power to the centering mechanism, realizing automatic centering of the camera module. This allows the entire focusing system to handle various camera modules of different specifications, improving the accuracy, stability, and efficiency of the entire focusing process. The electric telescopic rod 31 is located on the rear inner wall of the fixing member 2. The rear side of the output shaft of the electric telescopic rod 31 is fixedly connected to the rear of the cover plate 3. The upper side of the fixing member 2 has a groove 33. The cover plate 3 slides on the inner wall of the groove 33. A guide member 32 is slidably connected to the inner wall of the groove 33, connecting the slide rod 6 and the moving plate 41. Driven by the cover plate 3, it slides along the inner wall of the groove 33 and, through cooperation with the guide groove 42 on the moving plate 41, converts the linear motion of the cover plate 3 into the horizontal movement of the moving plate 41, thereby precisely controlling the clamping and centering action of the clamping rod 44, improving the accuracy, stability, and efficiency of the entire focusing process.
[0036] Reference Figure 4 - Figure 6 A sliding rod 6 is fixedly connected to the rear side of the guide member 32. When the cover plate 3 is reset, the guide member 32 can be reset, thereby driving the centering mechanism to reset. The rear side of the sliding rod 6 slides on the lower inner wall of the cover plate 3, and the lower side of the guide member 32 slides on the inner wall of the guide groove 42. A stabilizing rod is provided on the inner wall of the fixing member 2. The moving plate 41 slides through the outer side of the moving plate 41 to improve the stability of the moving plate 41. The clamping rod 44 slides on the inner wall of the fixing member 2. Two sets of clamping rods 44 are provided. The two sets of clamping rods 44 are symmetrically arranged with the center line of the fixing member 2 as the axis of symmetry. Two sets of sliding grooves 33 are provided. The two sets of sliding grooves 33 are respectively provided on the left and right sides of the fixing member 2.
[0037] Reference Figure 5 and Figure 6 An auxiliary component is provided on the outside of the clamping rod 44. The auxiliary component includes a rubber sleeve 51, which is fitted onto the outside of the clamping rod 44. The rubber sleeve 51 is made of rubber and acts as a soft buffer layer when clamping the camera module, preventing the clamping rod 44 from directly contacting the module and causing scratches or damage to its surface. At the same time, it increases the friction between the clamping rod 44 and the module, making the clamping more stable and preventing the module from shifting during focusing. A bolt 52 is provided through the upper side of the rubber sleeve 51, and the lower side of the bolt 52 is threaded to the upper inner wall of the clamping rod 44. When the rubber sleeve 51 needs maintenance and replacement, the limit on the rubber sleeve 51 can be quickly released by rotating the bolt 52, making it convenient for operators to remove the old rubber sleeve 51 and replace it with a new one, thus improving the convenience of equipment maintenance.
[0038] Working principle: When focusing, the electric telescopic rod 31 starts to extend and retract according to the control signal. The output shaft of the electric telescopic rod 31 pushes the cover plate 3 and slides on the inner wall of the slide groove 33. The slide rod 6 is fixedly connected to the rear side of the two sets of guide members 32, which drives the lower side of the guide member 32 to slide on the inner wall of the guide groove 42 that is opened through the upper side of the moving plate 41.
[0039] The two sets of movable plates 41 slide horizontally on the inner wall of the fixed member 2, and are displaced toward the middle of the fixed member 2. At this time, the connecting cylinder 43 moves with the movable plates 41, and the clamping rod 44, which is slidably connected to the inner wall of the connecting cylinder 43, begins to move under the action of the compression spring 45.
[0040] When the clamping rod 44 is subjected to external forces such as changes in the size or positional deviation of the camera module, the compression spring 45 will absorb these changes through its own extension and contraction, so that the clamping rod 44 always maintains a suitable clamping force, accurately positions the camera module in the center position, achieves centering, and ensures the accuracy of the entire focusing process.
[0041] When the rubber sleeve 51 needs maintenance or replacement, the limit on the rubber sleeve 51 can be quickly released by rotating the bolt 52 that is threaded through the upper side of the rubber sleeve 51 and connected to the upper inner wall of the clamping rod 44. This makes it convenient for operators to remove the old rubber sleeve 51 and replace it with a new one, thus improving the convenience of equipment maintenance.
[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An AF camera module automatic focusing machine, comprising a workbench (1), characterized in that: The inside of the workbench (1) is provided with a fixing part (2), the upper side of the fixing part (2) is provided with a cover plate (3), the outer side of the fixing part (2) is provided with a centering mechanism, the centering mechanism comprises a clamping assembly and a power assembly, the clamping assembly comprises a moving plate (41), the moving plate (41) is slidably connected to the inner wall of the fixing part (2), the upper side of the moving plate (41) is provided with a guide groove (42), the lower side of the moving plate (41) is fixedly connected with a connecting barrel (43), the inner wall of the connecting barrel (43) is slidably connected with a clamping rod (44), and the clamping rod (44) is elastically connected with the connecting barrel (43) through a compression spring (45). 2.The AF camera module automatic focusing machine of claim 1, wherein: The power assembly comprises an electric telescopic rod (31), the electric telescopic rod (31) is arranged on the rear inner wall of the fixing part (2), the rear side of the output shaft of the electric telescopic rod (31) is fixedly connected to the rear part of the cover plate (3), the upper side of the fixing part (2) is provided with a sliding groove (33), the cover plate (3) slides in the inner wall of the sliding groove (33), the inner wall of the sliding groove (33) is slidably connected with a guide piece (32), the rear side of the guide piece (32) is fixedly connected with a sliding rod (6), the rear side of the sliding rod (6) slides in the lower inner wall of the cover plate (3), and the lower side of the guide piece (32) slides in the inner wall of the guide groove (42). 3.The AF camera module automatic focusing machine of claim 1, wherein: The inner wall of the fixing part (2) is provided with a stabilizing rod, and the moving plate (41) slides outside the moving plate (41).
4. The AF camera module automatic focusing machine of claim 1, wherein: The rear side of the guide groove (42) is inclined.
5. The AF camera module automatic focusing machine of claim 1, wherein: The clamping rod (44) slides in the inner wall of the fixing part (2), the clamping rod (44) is provided with two groups, and the two groups of clamping rods (44) are symmetrically arranged with the center line of the fixing part (2) as the axis of symmetry.
6. The AF camera module automatic focusing machine of claim 2, wherein: The sliding groove (33) is provided with two groups, and the two groups of sliding grooves (33) are arranged on the left and right sides of the fixing part (2) respectively.
7. The AF camera module automatic focusing machine of claim 1, wherein: The outer side of the clamping rod (44) is provided with an auxiliary assembly, the auxiliary assembly comprises a rubber sleeve (51), the rubber sleeve (51) is sleeved on the outer side of the clamping rod (44), the upper side of the rubber sleeve (51) is provided with a bolt (52), and the lower side of the bolt (52) is threadedly connected to the inner wall of the upper part of the clamping rod (44). 8.The AF camera module automatic focusing machine of claim 7, wherein: The rubber sleeve (51) is made of rubber material.