A camera active alignment device
By designing an active camera alignment device including a rotating device and a alignment mechanism, the problems of error superposition and space limitation in traditional technology are solved, and the precise alignment of the camera, the back cover and the P-plate are realized, and the operating accuracy is improved.
Patent Information
- Application Number
- CN202420524086.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-18
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-03-18
AI Technical Summary
During the traditional camera module packaging process, due to the superposition of errors in component assembly, the captured image deviates from the center of the picture, and the clarity is inconsistent, and the existing active alignment device has problems such as space limitations and insufficient driving mechanisms.
An active camera alignment device is designed. By setting a rotating device and a alignment mechanism on the base, the rotational motion is converted into linear motion to achieve accurate alignment of the camera, the back cover and the P plate. The device includes a rotating device, a center-adjusting translation block and an elastic press, and precise alignment adjustment is achieved through the coordination of the adjustment rod and the guide hole.
There is no need to add a new driving mechanism, which improves the operating accuracy, realizes the active alignment process of the camera's back cover, P-plate and lens, and solves the problems of error superposition and space limitations in traditional technology.
Smart Images
Figure CN222725989U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of camera processing tooling, in particular to an active camera alignment device. Background Art
[0002] Active alignment is used to ensure the relative position of components during assembly. During the camera module packaging process, multiple assemblies are required, and the cumulative errors of each assembly will lead to more and more product problems. Traditional threaded combination lenses cannot adjust for these errors, and the final result may cause the captured image to deviate from the center of the picture, and the clarity of different areas may vary.
[0003] The camera active alignment (AA) device is the core equipment to ensure the precise assembly of the lens and image sensor. It is an important equipment required for the assembly of the image sensor module. The current technology of actively aligning the integrated lens structure (lens and fixture integrated) to the P board has the following defects:
[0004] 1. The integrated lens is larger than the P-plate size, and the conventional flip pressing mechanism cannot be used to press the product, otherwise the product cannot be taken out after AA;
[0005] 2. The device is affected by the equipment space size and control, and it is difficult to add additional electric or pneumatic power;
[0006] 3. The product is small but has many components, which requires high protection of product components and high operability of coaxial plug-in by the staff. Utility Model Content
[0007] In order to solve the above problems, the utility model provides a camera active alignment device, which is implemented as follows:
[0008] A camera active alignment device, comprising:
[0009] A base, wherein a mounting groove is provided on the base, an alignment hole is provided in the mounting groove, and an assembly table for placing a camera is also provided on the base beside the mounting groove;
[0010] The alignment mechanism comprises:
[0011] A rotating device, the rotating device is rotatably arranged in the mounting groove, a pair of coaxial sliding grooves are symmetrically provided on the rotating device, an oblong guide hole is provided at a position corresponding to the sliding groove along an angle of 30 to 50 degrees with the radial direction on the rotating device, and a through hole is provided in the middle of the rotating device;
[0012] A positioning device, the positioning device comprises a centering translation block slidably arranged in the slide slot, a rear seat fixing block is sandwiched between the two centering translation blocks, an adjustment rod adapted to the oblong guide hole is arranged on the centering translation block, a side surface of the centering translation block close to the rear seat fixing block is also connected with an elastic pressure block through a clamping spring, and the upper end surface of the rear seat fixing block is connected to the P plate fixing block through a lifting spring;
[0013] When the rotating device rotates, the adjusting rod drives the centering translation block to slide horizontally along the oblong guide hole, the centering translation block lifts the rear seat fixed block to move vertically, and the centering translation block drives the elastic pressure block to adjust the horizontal position of the P plate fixed block.
[0014] As a further improvement, the oblong guide hole is an arc-shaped oblong hole.
[0015] As a further improvement, the centering translation block includes a moving part horizontally arranged in the slide groove, and one end of the moving part close to the rear seat fixing block is vertically folded upward to form a guide part, and a side surface of the guide part close to the rear seat fixing block is provided with an adjustment part adapted to the guide inclined surface, and the adjustment rod is arranged on the upper end surface of the moving part.
[0016] As a further improvement, a pick-up port is provided on the side wall of the assembly table away from the mounting groove. The robot extends into the assembly table through the pick-up port and then moves upward to take out the camera and place it on the lens P plate that has been inserted for active alignment.
[0017] The beneficial effects of the utility model are:
[0018] There is no need to add a new driving mechanism. By converting rotational motion into linear motion, the operating accuracy is improved and the active alignment process of the camera's back cover, P plate and lens is achieved. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model when assembled.
[0020] Figure 2 It is a schematic diagram of the overall explosion structure of the utility model.
[0021] Figure 3 It is a schematic diagram of the overall structure of the base of the utility model.
[0022] Figure 4 It is a schematic diagram of the overall structure of the rotating seat of the utility model.
[0023] Figure 5 It is a schematic diagram of the overall structure of the turntable of the utility model.
[0024] Figure 6 It is a schematic diagram of the overall structure of the P plate fixing block of the utility model.
[0025] Figure 7 It is a schematic diagram of the overall structure of the rear seat fixing block of the utility model.
[0026] Figure 8 It is a schematic diagram of the overall structure of the centering translation block of the utility model.
[0027] Fig. 9 It is a schematic diagram of the overall structure of the elastic pressing block of the utility model. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.
[0029] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.
[0030] A camera module active alignment device, comprising:
[0031] A base 1, wherein a mounting groove 12 is formed on the base 1, and a positioning hole 13 is formed in the mounting groove 12. An assembly table 11 for placing a camera 41 is also provided on the base 1 beside the mounting groove 12;
[0032] The rotating mechanism 2 comprises a rotating seat 21 embedded in the mounting groove 12, a fixing hole 211 is provided in the middle of the rotating seat 21, a pair of coaxial slide grooves 212 are symmetrically provided on the rotating seat 21, an annular turntable 22 is provided on the upper end surface of the rotating seat 21 for horizontal rotation, a rotating handle 222 is provided on the outer periphery of the turntable 22, and an oblong guide hole 221 is provided on the turntable 22 at a position corresponding to the slide groove 212 along an angle of 30 to 50 degrees with the radial direction;
[0033] The alignment mechanism 3 comprises:
[0034] A rear seat fixing block 31, the rear seat fixing block 31 and the fixing hole 211 are adapted and embedded on the rotating seat 21, a step portion 311 is provided in the middle of the rear seat fixing block 31, an assembly hole 312 is provided at the corresponding position of the step portion 311 and the fixing hole 211, and a guiding inclined surface 313 is respectively provided on the outer wall of the rear seat fixing block 31 and the two sliding grooves 212 on the same side;
[0035] The centering translation block 32 includes a moving portion 321 horizontally arranged in the slide groove 212, one end of the moving portion 321 close to the rear seat fixing block 31 is vertically folded upward to form a guide portion 322, and an adjusting portion 323 adapted to the guide inclined surface 313 is arranged on a side surface of the guide portion 322 close to the rear seat fixing block 31, and an adjusting rod 325 adapted to the guide hole 14 is extended upwardly from the moving portion 321;
[0036] A P-plate fixing block 34, the P-plate fixing block 34 is placed on the upper end surface of the rear seat fixing block 31, and a lifting spring 316 is provided between the P-plate fixing block 34 and the rear seat fixing block 31, and an accommodating hole 341 for accommodating the lens P-plate 42 is provided on the P-plate fixing block 34;
[0037] The elastic pressure block 33 is arranged on the upper end of the side surface of the guide portion 322 close to the rear seat fixing block 31 through a clamping spring 332, and the elastic pressure block 33 extends toward the direction close to the rear seat fixing block 31 to form a clamping portion 331 that can clamp the lens P plate 42.
[0038] If the radial angle between the guide hole 14 and the turntable 22 is too large, the centering translation block 32 will move a long distance when the turntable 22 rotates at a small angle, which does not meet the precision assembly requirements. If the radial angle between the guide hole 14 and the turntable 22 is too small, the turntable 22 needs to rotate at a large angle during active alignment, which does not meet the small space design requirements. Preferably, the radial angle between the guide hole 14 and the turntable 22 is 45°.
[0039] Preferably, the oblong guide hole 221 is an arc-shaped oblong hole.
[0040] Preferably, the inclination angles of the adjusting portion 323 and the guiding inclined surface 313 are 25-50°.
[0041] As a further improvement, the rotating seat 21 is a square base 1 adapted to the mounting groove 12, and at least four limit platforms 213 are provided on the upper end surface of the rotating seat 21, and each of the limit platforms 213 has a circular guide surface of the same arc on one side surface facing the inside.
[0042] As a further improvement, a plurality of guide holes 14 are provided in the installation groove 12 at the periphery of the alignment hole 13 and at a position not exceeding the projection of the fixing hole 211 on the upper end surface of the installation groove 12. A guide sleeve 314 is embedded in the guide hole 14. A guide rod 315 is movably arranged in the guide sleeve 314. The guide rod 315 passes through the rear seat fixing block 31 and at least partially extends out of the upper end surface of the rear seat fixing block 31. A lifting groove adapted to the guide rod 315 is provided on the lower end surface of the P plate fixing block 34. The portion of the guide rod 315 extending out of the rear seat fixing block 31 is at least partially accommodated in the lifting groove.
[0043] As a further improvement, the lifting spring 316 is wound around the outer circumference of the guide rod 315 .
[0044] As a further improvement, a positioning hole 324 is provided at the upper end of the guide portion 322 , and a positioning block 333 adapted to the positioning hole 324 is provided on a surface of the elastic pressure block 33 close to the centering translation block 32 .
[0045] As a further improvement, the rear lens cover 43 is placed on the step portion 311 of the rear seat fixing block 31 .
[0046] As a further improvement, a pick-up port is provided on the side wall of the assembly table 11 away from the mounting groove 12. The robot extends into the assembly table 11 through the pick-up port and then moves upward to take out the camera 41 and place it on the lens P plate 42 that has been inserted for active alignment.
[0047] As a further improvement, the outer periphery of the turntable 22 extends outward to form a protrusion, and a limiting block is provided on the limit platform 213 of the rotating seat 21. The protrusion will be blocked by the limiting block to prevent the staff from damaging the lens P plate 42 due to improper operation.
[0048] Working principle:
[0049] The staff manually places the lens P plate 42 in the receiving hole 341 of the P plate fixing block 34, and places the lens rear cover 43 in the rear seat fixing block 31, and rotates the rotating handle 222 of the turntable 22. The adjusting rod 325 on the centering translation block 32 moves horizontally with the rotation of the guide hole 14, and the elastic pressure block 33 moves toward the centering translation block 32 when the centering translation block 32 moves. Then, the rear seat fixing block 31 is lifted by the adjusting portion 323 of the centering translation block 32 and moves upward, thereby driving the lens P plate 42 to move upward, ensuring the consistent height of the P plate within the tolerance thickness, and ensuring the accuracy of active alignment. As the turntable 22 continues to move, the elastic pressure block 33 is limited by the lens P plate 42 and remains stationary. Through the compression of the lifting spring 316, the remaining part continues to lift, realizing the automatic insertion and power-on of the lens P plate 42 and the lens rear cover 43. After completion, the robot arm takes out the camera 41 to actively align the camera 41 with the lens P plate 42. After completion, remove the P plate fixing block 34 to take out the product.
[0050] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A camera active alignment device, characterized in that: include: A base, wherein a mounting groove is provided on the base, an alignment hole is provided in the mounting groove, and an assembly table for placing a camera is also provided on the base beside the mounting groove; The alignment mechanism comprises: A rotating device, the rotating device is rotatably arranged in the mounting groove, a pair of coaxial sliding grooves are symmetrically provided on the rotating device, an oblong guide hole is provided at a position corresponding to the sliding groove along an angle of 30 to 50 degrees with the radial direction on the rotating device, and a through hole is provided in the middle of the rotating device; A positioning device, the positioning device comprises a centering translation block slidably arranged in the slide slot, a rear seat fixing block is sandwiched between the two centering translation blocks, an adjustment rod adapted to the oblong guide hole is arranged on the centering translation block, a side surface of the centering translation block close to the rear seat fixing block is also connected with an elastic pressure block through a clamping spring, and the upper end surface of the rear seat fixing block is connected to the P plate fixing block through a lifting spring; When the rotating device rotates, the adjusting rod drives the centering translation block to slide horizontally along the oblong guide hole, the centering translation block lifts the rear seat fixed block to move vertically, and the centering translation block drives the elastic pressure block to adjust the horizontal position of the P plate fixed block.
2. A camera active alignment device as claimed in claim 1, characterized in that: The oblong guide hole is an arc-shaped oblong hole.
3. A camera active alignment device as claimed in claim 1, characterized in that: The centering translation block includes a moving part horizontally arranged in the slide groove, one end of the moving part close to the rear seat fixing block is vertically folded upward to form a guide part, and an adjustment part adapted to the guide inclined surface is arranged on a side surface of the guide part close to the rear seat fixing block, and the adjustment rod is arranged on the upper end surface of the moving part.
4. A camera active alignment device as claimed in claim 1, characterized in that: A take-out opening is provided on the side wall of the assembly table away from the mounting groove. The robot extends into the assembly table through the take-out opening and then moves upward to take out the camera and place it on the lens P plate that has been inserted for active alignment.