CN114434141A - Camera module assembly equipment and assembly production line - Google Patents
Camera module assembly equipment and assembly production line Download PDFInfo
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- CN114434141A CN114434141A CN202011209472.XA CN202011209472A CN114434141A CN 114434141 A CN114434141 A CN 114434141A CN 202011209472 A CN202011209472 A CN 202011209472A CN 114434141 A CN114434141 A CN 114434141A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/10—Aligning parts to be fitted together
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/52—Devices for transferring articles or materials between conveyors i.e. discharging or feeding devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
- F16B11/006—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention provides a camera module assembling device, which comprises: a base; the first linear guide rail is used for conveying the carrier plate; and two assembly lines of focusing, the two assembly lines of focusing set up respectively in the both sides of first straight line guide rail, wherein every assembly line of focusing includes: a photosensitive assembly moving platform; a lens assembly moving platform; the photosensitive assembly detection processing mechanism and the focusing correction mechanism; the focusing correction mechanism comprises an inclination angle adjusting mechanism and a shooting head arranged on the inclination angle adjusting mechanism, the shooting head is suitable for shooting the lens assembly, and the inclination angle adjusting mechanism is suitable for moving in Rx and Ry directions. The photosensitive assembly moving platform comprises a first material carrying platform which is suitable for moving in the directions of an x axis, a y axis and a z axis. This application still provides corresponding module assembly production line of making a video recording. This application can promote the packaging efficiency of focusing, promotes the unit area output rate of making a video recording module production line.
Description
Technical Field
The invention relates to the technical field of camera modules, in particular to camera module assembling equipment and a camera module assembling production line assembled based on the camera module assembling equipment.
Background
With the popularization of mobile electronic devices, technologies related to camera modules applied to mobile electronic devices for helping users to obtain images (e.g., videos or images) have been rapidly developed and advanced, and in recent years, camera modules have been widely applied to various fields such as medical treatment, security, industrial production, and the like. In recent years, the imaging quality of the camera module is more and more demanded by users, and accordingly, the demand for the camera module with high imaging quality is higher. In addition, in order to meet various photographing requirements, more and more electronic terminals are provided with the array type camera module. The array camera module comprises at least two camera modules, and some camera modules even have four or five camera modules. This results in a sudden increase in the quality and quantity requirements of the camera modules, which presents challenges to the existing production capacity.
The camera module generally includes a photosensitive assembly and a lens assembly. The photosensitive assembly includes a photosensitive chip, sometimes referred to as an image sensor. The image sensor is attached to the circuit board, and the circuit board, the image sensor, the lens seat and other parts are arranged on the circuit board to form the photosensitive assembly. The lens assembly typically includes an optical lens. The conventional method for assembling a camera module generally includes prefabricating a lens assembly and a photosensitive assembly separately, and then assembling (e.g., attaching) the two together. In the assembling process, the relative position of the lens assembly and the photosensitive assembly, especially the relative position of the optical axis of the optical lens and the photosensitive element, has a decisive influence on the imaging quality of the camera module, and the lens assembly and the photosensitive element need to be accurately positioned relative to each other. In the low pixel camera module, the assembly and fixation of the two can be realized by adopting a mechanical alignment mode, but the positioning accuracy of the mode is not high, and the imaging quality is possibly negatively affected, so that the high-end product series of the camera module is often difficult to be used.
In order to realize the accurate positioning of the optical assembly and the photosensitive assembly, the relative positions of the photosensitive assembly and the lens assembly are adjusted and assembled by adopting an active calibration mode, so that the imaging quality of a finished camera module is improved. Specifically, one of an optical component or a photosensitive component of the module (i.e., a camera module) can be used as a reference, and the other component is actively adjusted, so that the normal of the photosensitive chip is parallel to the optical axis of the lens component, and the center of the photosensitive chip coincides with the optical center of the lens component, so that the four corners and the central field of view area of the module can reach the optimal imaging definition, thereby exerting the imaging quality of the module to the maximum extent and improving the imaging level. More specifically, one way of assembly is: the photosensitive assembly to be assembled can be fixed in place, the photosensitive chip is lit up, and the mechanical device clamps the lens assembly and adjusts in six degrees of freedom. The other assembling mode is as follows: the lens component is clamped and fixed, the photosensitive component is arranged on an adjusting platform capable of moving in multiple degrees of freedom, the relative position of the lens component relative to the photosensitive component is adjusted through running out of focus curves, the clear image center and the uniform resolution force at four corners of a picture are ensured, and the lens component is fixed (for example, bonded) on the photosensitive component at a proper position. The assembly mode based on the active calibration mode can effectively improve the imaging quality of products, however, the conventional active calibration mode completes the assembly of the optical component and the photosensitive component of a single module through a plurality of continuous steps, the production is long in time consumption and low in efficiency, the UPH is difficult to improve, and the UPH is difficult to adapt to the module production tasks with short time and large quantity.
On the other hand, the production process of the camera module comprises a plurality of process links, including SMT (electronic component is mounted on a circuit board), COB (chip mounting on a circuit board), AA (active calibration) and the like at the front end, and compared with other process links, the SMT and COB technologies are mature, so that the capacity is higher, and the AA process link often becomes the bottleneck of yield promotion in the whole manufacturing process, so that how to promote the AA assembly efficiency is one of the problems which need to be solved urgently at present.
Moreover, in order to realize the full automation of the module production process, the production equipment of each process link needs to be integrated together. This requires the assembly and wiring of existing individual pieces of equipment that independently complete a single process, i.e., the direct connection of production equipment in both the preceding and subsequent process steps. However, the time required for the different process steps is different, which requires a reasonable design and layout depending on the respective production efficiency of the different equipment. The long AA assembling time of the AA equipment results in a great difficulty in connecting the AA equipment with production equipment of other process links.
Disclosure of Invention
The present invention is directed to overcome the disadvantages of the prior art, and provides a camera module assembling apparatus and a camera module assembling line, which can overcome the above technical problems, improve the focusing and assembling efficiency of the photosensitive assembly and the lens assembly, and are suitable for realizing the automatic online production of the camera module.
In order to solve the above technical problem, the present invention provides a camera module assembling apparatus, which includes: a base; the first linear guide rail is arranged on the surface of the base and used for conveying a carrier plate, and the carrier plate is suitable for placing a plurality of photosensitive assemblies to be assembled or a plurality of lens assemblies to be assembled; and the two focusing assembly lines are respectively arranged on two sides of the first linear guide rail. Wherein each of the focus assembly lines comprises: the second linear guide rail is arranged on the base, is parallel to the first linear guide rail, and is sequentially provided with a first feeding and discharging station, a photosensitive assembly detection processing station, an assembling station and a second feeding and discharging station; the photosensitive assembly moving platform is arranged on the second linear guide rail and can move along the second linear guide rail in a section from the first loading and unloading station to the assembling station; the photosensitive assembly moving platform is provided with at least one first material carrying platform, and the first material carrying platform is suitable for moving in the directions of an x axis, a y axis and a z axis; the x axis and the y axis are both parallel to a reference surface of the base, the x axis direction is perpendicular to the second linear guide rail, the y axis direction is consistent with the direction of the second linear guide rail, and the z axis direction is perpendicular to the reference surface; the lens component moving platform is arranged on the second linear guide rail and can move along the second linear guide rail in a section from the second loading and unloading station to the assembling station; the lens assembly moving platform is provided with at least one second material carrying platform, and the second material carrying platform is suitable for moving in the directions of an x axis, a y axis and a z axis; the photosensitive assembly detection processing mechanism is used for identifying the position of a photosensitive center of the photosensitive assembly to be assembled according to the overlooking picture, obtaining the height of the photosensitive assembly to be assembled based on multi-point height measurement and calculating the inclination angle of the photosensitive assembly to be assembled relative to the reference surface; and a focusing correction mechanism mounted on the base and disposed at the assembly station, the focusing correction mechanism including an inclination adjustment mechanism and a pickup head mounted on the inclination adjustment mechanism, the pickup head being adapted to pick up the lens assembly, the inclination adjustment mechanism being adapted to move in Rx and Ry directions, wherein the Rx and Ry directions are rotation directions of rotating around an x-axis and rotating around a y-axis.
Wherein, the module equipment of making a video recording still includes: the first loading and unloading mechanism is arranged on the base and is arranged at the first loading and unloading station, and the first loading and unloading mechanism is suitable for moving a photosensitive assembly to be assembled to the first loading and unloading station and placing the photosensitive assembly on the photosensitive assembly moving platform; the second loading and unloading mechanism is arranged on the base and is arranged on the second loading and unloading station, and the second loading and unloading mechanism is suitable for moving the lens component to be assembled to the second loading and unloading station and placing the lens component on the lens component moving platform; the two focusing assembly lines share the same first loading and unloading mechanism; and the two focusing assembly lines share the same second loading and unloading mechanism.
The first feeding and discharging mechanism comprises a semi-finished product feeding mechanism and a finished product discharging mechanism, and the semi-finished product feeding mechanism and the finished product discharging mechanism are respectively provided with an independent track and a material intake head.
And the second feeding and discharging mechanism is used for feeding semi-finished products.
The first linear guide rail is provided with a plurality of carrier plate moving platforms, and each carrier plate moving platform is suitable for moving along the first linear guide rail under the driving of a transmission belt.
The first linear guide rail comprises a first section and a second section, wherein the first section and the second section are provided with independent transmission belts respectively so as to drive the support plate moving platforms installed on the first section and the second section to move.
The camera module assembling equipment further comprises a support plate circulation mechanism arranged on the base, and the support plate circulation mechanism is used for realizing circulation of the support plate between the first section and the second section.
The carrier plate circulating mechanism comprises a fifth linear guide rail and a carrier plate shooting head which is arranged on the fifth linear guide rail and can move along the fifth linear guide rail.
Wherein the carrier plate moving platforms of the first segment and the second segment are arranged at different heights.
The first section comprises a support and a track arranged at the top end of the support, and the carrier plate moving platform is in an inverted L shape and comprises a vertical part and a horizontal part; the vertical part is movably connected with the outer side surface of the track to slide along the track, and the horizontal part is arranged above the track and used for bearing the carrier plate; the bottom of the vertical portion is fixed to the conveyor belt.
The two outer side surfaces of the track are respectively provided with the inverted L-shaped carrier plate moving platform, and the horizontal parts of the two carrier plate moving platforms are staggered in height.
The lens component moving platform further comprises a reference photosensitive chip carrying platform, the reference photosensitive chip carrying platform is used for placing a standard reference photosensitive chip, and the reference photosensitive chip carrying platform is suitable for moving in the directions of an x axis, a y axis and a z axis; when the lens component moving platform moves to the assembling station, the shooting head shoots the lens component to be assembled, the standard reference photosensitive chip moves to the back focal position of the lens component to be assembled, and the back focal test is carried out on the lens component to be assembled so as to obtain the inclination angle of the lens component to be assembled relative to the reference plane and the optical center position of the lens component to be assembled.
The lens component moving platform further comprises a second photographing device which is suitable for photographing a bottom view sheet of the lens component to be assembled and identifying a rotation angle of the lens component to be assembled according to the bottom view sheet.
The lens assembly to be assembled comprises a motor and an optical lens mounted on the motor; the shooting head is an electrified clamping jaw which is suitable for clamping the lens assembly and electrically conducting the motor; the focusing correction mechanism also comprises a test target plate arranged above the shooting head and used for providing a test calibration pattern.
When the photosensitive assembly moving platform moves to the assembling station, moving the first carrying platform to perform translation adjustment on the photosensitive assembly according to the obtained photosensitive center position of the photosensitive assembly to be assembled and the obtained optical center position of the lens assembly to be assembled so as to enable the photosensitive center to be aligned with the optical center; the focusing correction mechanism is also used for moving the shooting head to adjust the inclination angle of the lens component to be assembled according to the obtained inclination angle of the lens component to be assembled relative to the reference surface and the obtained inclination angle of the photosensitive component to be assembled relative to the reference surface; and the focusing correction mechanism also comprises an exposure device which is used for exposing the glue on the surface of the photosensitive component to be assembled so as to solidify the glue, thereby connecting and fixing the photosensitive component to be assembled and the lens component to be assembled.
The photosensitive assembly detection processing station comprises a painting glue detection station and a photosensitive parameter test station; photosensitive assembly detects processing apparatus and constructs includes: the glue drawing detection mechanism is arranged on the base and is arranged at the glue drawing detection station, the glue drawing detection mechanism comprises a glue drawing device and a camera device, the glue drawing device is used for drawing glue on the surface of the photosensitive assembly to be assembled, the camera device is used for shooting an overlooking picture of the photosensitive assembly to be assembled, and the position of a photosensitive center of the photosensitive assembly to be assembled is identified according to the overlooking picture; and the photosensitive parameter testing mechanism is arranged on the base and is arranged at the photosensitive parameter testing station, and the photosensitive parameter testing mechanism comprises a multipoint height measuring device which is used for carrying out multipoint height measurement on the surface of the photosensitive component to be assembled so as to obtain the height of the photosensitive component to be assembled and calculate the inclination angle of the photosensitive component to be assembled relative to the reference surface.
According to another aspect of the present application, there is also provided a camera module assembly line, which includes: the photosensitive assembly assembling equipment is used for assembling the photosensitive assembly and putting the assembled photosensitive assembly into the photosensitive assembly carrier plate; the lens assembly assembling equipment is used for assembling the lens assembly and putting the assembled lens assembly into the lens assembly carrier plate; and any of the camera module assembly apparatus as described above; the photosensitive assembly assembling equipment and the lens assembly assembling equipment are respectively positioned at two ends of the first linear guide rail and respectively output the photosensitive assembly carrier plate and the lens assembly carrier plate to a carrier plate moving platform arranged on the first linear guide rail.
The number of the camera module assembly equipment is at least two, at least two camera module assembly equipment are spliced in parallel, and each focusing assembly line of each camera module assembly equipment runs in parallel; the photosensitive assembly carrier plate, the lens assembly carrier plate and a carrier plate for bearing finished products are circulated between the at least two camera module assembly devices through the first linear guide rail.
In each camera module assembly device, the first linear guide rail comprises a first section and a second section, and the first section and the second section are provided with independent transmission belts respectively so as to drive the carrier plate moving platforms arranged on the first section and the second section to move respectively; the camera module assembling equipment further comprises a carrier plate circulation mechanism arranged on the base, and the carrier plate circulation mechanism is used for realizing the circulation of the carrier plate between the first section and the second section; the carrier plate circulating mechanism comprises a fifth linear guide rail and a carrier plate shooting head which is arranged on the fifth linear guide rail and can move along the fifth linear guide rail; the photosensitive assembly carrier plate, the lens assembly carrier plate and a carrier plate used for bearing finished products are connected with the first linear guide rail through the first linear guide rail.
Compared with the prior art, the application has at least one of the following technical effects:
1. this application can promote the packaging efficiency that focuses of sensitization subassembly and camera lens subassembly.
2. This application is suitable for the automatic on-line production that realizes the module of making a video recording.
3. In some embodiments of the application, the photosensitive assembly to be assembled and the lens assembly to be assembled can be respectively and parallelly subjected to eccentric adjustment (namely shift adjustment) and tilt adjustment, and then the adjusted photosensitive assembly and the adjusted lens assembly are directly assembled, so that the production efficiency of the focusing assembly process link of the camera module is remarkably improved.
4. In some embodiments of the application, a plurality of focusing assembly stations can be arranged, and a plurality of focusing assembly devices can be connected in parallel, so that the production efficiency of focusing assembly links is improved in automatic connection production, and the requirement of large-scale production is met.
5. In some embodiments of the present application, the rotation and horizontal adjustment are divided into two adjustment mechanisms instead of the original six-free platform movement and adjustment, which can reduce the number of degrees of freedom of the adjustment mechanisms, and is helpful to reduce the poor product or the image quality reduction caused by the system error of the six-free platform.
6. In some embodiments of the application, the materials to be assembled are circulated between different stations and process links by utilizing the movement of the mobile platform on the same straight rail, so that the heights of the materials to be assembled in the front and rear process links are consistent, and the movement stroke is reduced.
7. In some embodiments of this application, can utilize product circulation mechanism, move the in-process of the first material loading level of sensitization subassembly from the magazine to the sensitization subassembly, the sensitization subassembly goes on simultaneously to the material loading process of next equipment, realizes the parallel work of many assembling equipment of focusing.
Drawings
Fig. 1 is a schematic block diagram illustrating an apparatus for assembling a camera module according to an embodiment of the present disclosure;
fig. 2 is a schematic perspective view illustrating a camera module assembling apparatus according to an embodiment of the present application;
FIG. 3 is a schematic perspective view of a photosensitive assembly moving platform in one embodiment of the present application;
FIG. 4 illustrates a perspective view of a lens assembly translation platform in one embodiment of the present application;
FIG. 5 is a schematic perspective view of a painting detection mechanism and a light sensing parameter testing mechanism according to an embodiment of the present application;
FIG. 6 illustrates a perspective view of a focus correction mechanism in one embodiment of the present application;
fig. 7 is a flowchart illustrating a camera module assembling method based on the camera module assembling apparatus according to an embodiment of the present application;
fig. 8 shows a perspective view of a camera module assembly device with a target in an embodiment of the present application;
FIG. 9 is a schematic top view of a layout of a camera module assembly line in one embodiment of the present application;
FIG. 10 illustrates a production line formed by splicing two of the focusing assembly apparatuses shown in FIG. 9 in parallel;
fig. 11 shows a schematic top view of a layout of a camera module assembly line in another embodiment of the present application;
fig. 12 is a schematic layout diagram of a camera module assembly line in which a plurality of focus assembly apparatuses are spliced in parallel according to an embodiment of the present application;
fig. 13 is a perspective view of a first linear guide rail and a carrier plate circulation mechanism according to an embodiment of the present application;
FIG. 14 illustrates a perspective view of a first section of a first linear guide rail in one embodiment of the present application;
FIG. 15 shows a schematic top view of a focus assembly apparatus in one embodiment of the present application;
FIG. 16 shows a schematic top view of a focus assembly apparatus with half-product and product flow paths marked out of the focus assembly line in one embodiment of the present application.
Detailed Description
For a better understanding of the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that the detailed description is merely illustrative of exemplary embodiments of the present application and does not limit the scope of the present application in any way. Like reference numerals refer to like elements throughout the specification. The expression "and/or" includes any and all combinations of one or more of the associated listed items.
It should be noted that the expressions first, second, etc. in this specification are used only to distinguish one feature from another feature, and do not indicate any limitation on the features. Thus, a first body discussed below may also be referred to as a second body without departing from the teachings of the present application.
In the drawings, the thickness, size, and shape of an object have been slightly exaggerated for convenience of explanation. The figures are purely diagrammatic and not drawn to scale.
It will be further understood that the terms "comprises," "comprising," "includes," "including," "has," "including," and/or "including," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Moreover, when a statement such as "at least one of" appears after a list of listed features, the entirety of the listed features is modified rather than modifying individual elements in the list. Furthermore, the use of "may" mean "one or more embodiments of the application" when describing embodiments of the application. Also, the term "exemplary" is intended to refer to an example or illustration.
As used herein, the terms "substantially," "about," and the like are used as terms of table approximation and not as terms of table degree, and are intended to account for inherent deviations in measured or calculated values that will be recognized by those of ordinary skill in the art.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The invention is further described below with reference to the accompanying drawings and specific embodiments.
The present application relates generally to apparatus and methods for assembling a lens assembly and a photosensitive assembly into a camera module. In one instance, the lens assembly may include a motor and an optical lens, and the optical lens may be mounted in a carrier of the motor, and the carrier may be controllably moved relative to a housing of the motor to achieve various functions such as auto-focus, optical zoom, or optical anti-shake. The photosensitive assembly generally includes a photosensitive chip and a circuit board, and may also be referred to as a circuit board assembly. The motor base of the lens assembly can be attached to the surface of the circuit board, so that the lens assembly and the photosensitive assembly are assembled into a complete camera module, and the camera module can have various functions of automatic focusing, optical zooming or optical anti-shaking and the like. In another case, the lens assembly may not have a motor, i.e. the optical lens alone constitutes the lens assembly. The bottom surface of the optical lens can be used as an attaching surface to be bonded with the surface of the circuit board, so that a complete fixed-focus camera module is assembled. For convenience of description, the attached surface of the lens assembly may be referred to herein as a second adhesive surface. In some embodiments, the photosensitive assembly may further include a filter assembly, and the filter assembly may include a lens holder and a filter mounted on the lens holder. The lens base can be a molded lens base directly formed on the surface of the circuit board, or can be formed in advance and then installed on the circuit board. The bottom surface of the lens base can be arranged on the surface of the circuit board. The top surface of the lens holder serves as an attachment surface (or referred to as a first bonding surface) to which the lens assembly is bonded. Namely, the top surface of the lens base is bonded with the motor base or the bottom surface of the optical lens to form a complete camera module.
Fig. 1 shows a block schematic diagram of a camera module assembling apparatus according to an embodiment of the present application. The camera module is formed by assembling two semi-finished products respectively provided with a photosensitive chip and a lens. Wherein the lens may be mounted within a motor for auto-focusing and/or anti-shake functions, such a semi-finished product may be referred to as a motor lens assembly. The photosensitive chip can be assembled with a circuit board, a lens base, a filter and necessary electronic components (such as a resistor, a capacitor and the like) to form a photosensitive assembly. In this embodiment, the camera module assembling device provides two parallel operating process flows, which are respectively used for testing and processing the photosensitive assembly and the motor lens assembly, and then the photosensitive assembly and the motor lens assembly are connected (for example, bonded) after being focused and corrected, so that the focusing assembling speed is increased, and the production efficiency is improved. Referring to fig. 1, in this embodiment, the photosensitive assembly may be loaded by the chip loading module, and after loading, the photosensitive assembly is placed on the first moving platform, and the first moving platform may have a three-axis driving mechanism with x, y, and z axes, so as to move in the three-axis directions. And a laser height measurement module, an upper camera visual detection module and a glue drawing module can be arranged above the first mobile platform so as to measure the deviation of the photosensitive center of the photosensitive chip, the inclination angle of the photosensitive chip and the height of the photosensitive chip. The motor lens assembly may be loaded by the motor loading module, and the loaded motor lens assembly is placed on the motor loading platform, and the motor loading platform may be integrated with a standard chip and a lower camera module on the same second mobile platform, and the second mobile platform may have three-axis driving mechanisms of x, y and z axes, so as to be movable in the three-axis directions. An electrified motor clamping jaw can be arranged above the second moving platform, and the electrified motor clamping jaw can clamp the motor lens assembly from the motor loading platform and electrify the motor. The powered motor jaws may have U, V, W three rotational directions of freedom of movement. Here, the U direction is a direction of rotation around the z axis and may be referred to as Rz, the V direction is a direction of rotation around the x axis and may be referred to as Rx, and the W direction is a direction of rotation around the y axis and may be referred to as Ry. In this embodiment, the z direction is a vertical direction, the x and y directions are both horizontal directions, and the x and y axes are perpendicular to each other (for the directions of the x, y and z axes, refer to fig. 2). Since the first moving platform can move only in the x-axis, y-axis and z-axis and the powered motor jaws can move only in the rotational direction (e.g., Rx and Ry directions) in this embodiment, the six-axis adjustment mechanism may not be required during the focus correction, thereby contributing to a reduction in the cost of the apparatus. Simultaneously, because six adjustment mechanism's function is decomposed to two adjustment mechanism that the degree of freedom is less (being less than six) and is executed parallelly, this embodiment still helps promoting adjustment mechanism at the moving speed of correction process under the prerequisite of guaranteeing the module of making a video recording formation of image quality, reduces the time that the correction process was shared, promotes production efficiency.
Further, fig. 2 shows a schematic perspective view of the camera module assembling apparatus according to an embodiment of the present application. Referring to fig. 2, in this embodiment, the camera module assembling apparatus includes: a base (not shown in fig. 2), a linear guide rail 10 installed on the base, a photosensitive assembly moving platform 20 and a lens assembly moving platform 30 installed on the linear guide rail 10, a first loading and unloading mechanism 40, a second loading and unloading mechanism 50, a photosensitive assembly detection processing mechanism 60 and a focusing correction mechanism 70 installed on the base. Wherein, the base can provide a reference surface for module equipment of making a video recording. Linear guide 10 install in the base, along linear guide 10 sets gradually first unloading station, photosensitive assembly detection and processing station, equipment station and the unloading station of second on. The photosensitive component moving platform 20 is mounted on the linear guide rail 10 and can move along the linear guide rail 10 in a section from the first loading and unloading station to the assembling station; the photosensitive assembly moving platform 20 has at least one first material stage 21 (refer to fig. 3, and fig. 3 shows a perspective view of the photosensitive assembly moving platform in an embodiment of the present application), and the first material stage 21 is adapted to move in the directions of an x axis, a y axis, and a z axis. Specifically, the first material stage 21 may be mounted on a three-axis adjusting mechanism 22, and the three-axis adjusting mechanism 22 may implement three-axis movement in the directions of the x-axis, the y-axis, and the z-axis. Wherein the x-axis and the y-axis are both parallel to the base plane of the base, the x-axis direction is perpendicular to the linear guide rail, the y-axis direction is consistent with the linear guide rail direction, and the z-axis direction is perpendicular to the base plane (refer to fig. 2 in combination). The lens assembly moving platform 30 is mounted on the linear guide rail 10 and can move along the linear guide rail 10 in a section from the second loading and unloading station to the assembling station; the lens module moving platform 30 has at least one second material stage 31, and the second material stage 31 is adapted to move in the directions of x-axis, y-axis and z-axis (refer to fig. 4 in combination, and fig. 4 shows a perspective view of the lens module moving platform in one embodiment of the present application). The first loading and unloading mechanism 40 is installed on the base and arranged on the first loading and unloading station, and the first loading and unloading mechanism 40 is suitable for moving the photosensitive assembly to be assembled to the first loading and unloading station and placing the photosensitive assembly on the photosensitive assembly moving platform 20. The second loading and unloading mechanism 50 is mounted on the base and disposed at the second loading and unloading station, and the second loading and unloading mechanism 50 is adapted to move the lens assembly to be assembled to the second loading and unloading station and place the lens assembly on the lens assembly moving platform 30. The photosensitive component detection processing mechanism 60 is configured to identify the position of the photosensitive center of the photosensitive component to be assembled according to the top view, obtain the height of the photosensitive component to be assembled based on multi-point height measurement, and calculate the inclination angle of the photosensitive component to be assembled with respect to the reference plane (i.e., tilt with respect to the reference plane). The focusing correction mechanism 70 is mounted on the base and disposed at the assembling station, and the focusing correction mechanism 70 includes a tilt angle adjusting mechanism and a pickup head mounted on the tilt angle adjusting mechanism, the pickup head is adapted to pick up the lens assembly, and the tilt angle adjusting mechanism is adapted to move in Rx and Ry directions, wherein the Rx and Ry directions are rotation directions rotating around an x-axis and a y-axis. In this embodiment, the sensitization center of sensitization subassembly detects and the inclination detects, can detect simultaneously with the light center of camera lens subassembly detects and the inclination detects to promote the parallelism of equipment operation, help improving the production of the module of making a video recording in unit interval. When the focusing assembly is performed, the lens assembly may be driven by the lens assembly moving platform 30 to move to the focusing correction station 70, and at this time, the lens assembly moving platform 30 and the focusing correction mechanism 70 may form a focusing detection light path for performing an open-figure detection on the lens assembly to obtain parameters such as an optical center and an inclination angle of the lens assembly. Meanwhile, the photosensitive assembly can slide along the linear guide rail 10 under the driving of the photosensitive assembly moving platform 20, and the photosensitive center detection and the inclination angle detection of the photosensitive assembly are completed at each corresponding station. Then, the lens module moving platform 30 moves to the second loading and unloading station to avoid the focusing correction station, and waits for the next lens module loading. The photosensitive assembly can be driven by the photosensitive assembly moving platform 20 to move to the focusing correction station, and the focusing correction mechanism 70 and the photosensitive assembly moving platform 20 complete correction together. Since the photosensitive-assembly moving stage 20 can move only in the x-axis, y-axis, and z-axis in this embodiment, and the pickup head of the focus correction mechanism 70 can move only in the rotational direction (for example, Rx and Ry directions), the six-axis adjustment mechanism may not be required during the focus correction, thereby contributing to a reduction in the apparatus cost. Simultaneously, because six adjustment mechanism's function is decomposed to two adjustment mechanism that the degree of freedom is less (being less than six) and is executed parallelly, this embodiment still helps promoting adjustment mechanism at the moving speed of correction process under the prerequisite of guaranteeing the module of making a video recording formation of image quality, reduces the time that the correction process was shared, promotes production efficiency.
For ease of understanding, a comparative example will be described below.
In order to realize the fast focusing assembly of the camera module, a fast focusing assembly system and method is proposed in chinese patent application 201910242171.8 (which is not published at the present application), which provides a photosensitive assembly carrier plate including a plurality of photosensitive assemblies, and the photosensitive assemblies are used for dispensing glue at the positions where the photosensitive assemblies are fixed with the lens assembly; acquiring performance parameters of the photosensitive assembly on the photosensitive assembly carrier plate; shooting the photosensitive assembly carrier plate through a first vision camera, and measuring position information, optical axis and optical center information and rotation data information of the photosensitive assembly on the photosensitive assembly carrier plate; measuring height information and inclination data information of a photosensitive element of the photosensitive assembly positioned on a photosensitive assembly carrier plate; providing a lens assembly carrier plate comprising a plurality of lens assemblies; acquiring performance parameters of the selected lens assembly; analyzing proper focusing assembly positions of the photosensitive assembly and the lens assembly according to the performance parameters of the photosensitive assembly and the performance parameters of the lens assembly, and assembling the photosensitive assembly and the lens assembly at corresponding positions; and pre-fixing the relative positions of the lens assembly and the corresponding photosensitive assembly. Compared with the existing AA assembly scheme (the assembly scheme based on active calibration), the comparative example can improve the focusing assembly efficiency of the camera module to some extent, but still has some disadvantages. On the one hand, in this comparison example, the camera lens subassembly is moved to the top of sensitization subassembly support plate by the motor test position by six degrees of freedom platform centre gripping, focuses the equipment, and six degrees of freedom platform precision requires highly, in the straight rail motion process, because inertial influence causes the precision decline of six degrees of freedom platforms easily to make subsequent adjustment equipment produce the deviation with the calculated value, make the relative position of the sensitization subassembly of the module of making a video recording and camera lens subassembly deviate. On the other hand, in this comparative example, since the photosensitive element and the lens element are exposed and pre-fixed, the glue on the photosensitive element adjacent to the carrier plate is affected, so that the glue curing affects the fixing adhesiveness. In the embodiment of the application, the original six-free platform is replaced by two mechanisms of tilt angle (tilt) adjustment and horizontal adjustment, so that the adjustment is more accurate and the structure is simpler; the straight rail motion of the mobile platform is utilized to complete different stations and process operations, the design can ensure that the heights of the front and rear process links are corresponding all the time, and meanwhile, the motion stroke is reduced, thereby being beneficial to improving the efficiency.
Further, in an embodiment of the present application, the first loading and unloading mechanism may have a first moving mechanism, and the first moving mechanism may be a loading and unloading mechanical arm or other mechanism capable of moving and moving the photosensitive assembly from the first loading and unloading position to the first loading and unloading position, and taking out the assembled finished product of the camera module from the first loading and unloading position, and then moving to the corresponding discharging position. The moving path of the first moving mechanism may be perpendicular to the linear guide. The layout mode can effectively improve the space utilization rate, so that the structure of the equipment is more compact. The second loading and unloading mechanism comprises a second moving mechanism, and the second moving mechanism is used for moving the lens assembly from the second feeding position to the second loading and unloading position. The moving path of the second moving mechanism may also be perpendicular to the linear guide. In this embodiment, because the finished product after the equipment is through the unloading of first unloading mechanism of going up, the unloading mechanism of going up of second can only be used for the material loading of lens subassembly, need not carry out the finished product unloading. Further, still referring to fig. 2, in the present embodiment, the first loading and unloading mechanism 40 may include a first loading mechanism 41 (i.e. a semi-finished product loading mechanism) and a first unloading mechanism 42 (i.e. a finished product unloading mechanism), where the first loading mechanism 41 is used for loading the photosensitive assemblies (i.e. moving from the carrier to the first material loading stage, where the carrier may carry a plurality of photosensitive assemblies to be assembled in an array). The first blanking mechanism 42 is used for blanking the finished camera module (moving out of the first material carrying platform). It should be noted that in other embodiments, the assembled finished product may be discharged through the second loading and unloading mechanism, and the first loading and unloading mechanism is only used for loading the photosensitive assembly, and finished product discharging is not required.
Further, referring to fig. 4 in combination, in an embodiment of the present application, the lens module moving platform 30 further includes a reference photosensitive chip carrier 32, the reference photosensitive chip carrier 32 is used for placing a standard reference photosensitive chip, and the reference photosensitive chip carrier 32 is adapted to move in the directions of the x-axis, the y-axis, and the z-axis. When the lens component moving platform 30 moves to the assembling station, the shooting head 71 of the focusing correction mechanism 70 shoots the lens component to be assembled from the second material carrying platform 31, the standard reference photosensitive chip moves to the back focus position of the lens component to be assembled, and the back focus test is performed on the lens component to be assembled to obtain the inclination angle of the lens component to be assembled relative to the reference surface. The standard reference photosensitive chip can be moved by moving the reference photosensitive chip carrier 32 to be located at a back focal position of the lens assembly captured by the capture head 71 of the focus correction mechanism 70 (refer to fig. 6, fig. 6 shows a schematic perspective view of the focus correction mechanism in an embodiment of the present application), so as to implement open view detection of the optical center and the tilt angle of the lens assembly. The lens module moving platform 30 may further include a second photographing device 33 adapted to photograph a bottom view sheet of the lens module to be assembled, and identify an optical center position of the lens module to be assembled and/or identify a rotation angle of the lens module to be assembled according to the bottom view sheet (the rotation angle refers to a rotation angle in a rotation degree of freedom in the xoy plane, i.e., an Rz rotation angle, where Rz represents a degree of freedom of movement about the z axis). An illuminating device 33a may be disposed above the second photographing device 33, and the illuminating device 33a may provide an annular light source to illuminate the subject while avoiding blocking of the imaging optical path of the second photographing device 33. The second material stage 31 has at least one lens block setting position 31a (the second material stage 31 in fig. 4 has three lens block setting positions) so as to fix or place the lens block to be assembled. The reference photosensitive chip stage 32 has at least one photosensitive chip setting bit 32a for fixing a standard reference photosensitive chip. The reference photosensitive chip carrier 32 may further be provided with one or more NG lens assembly setting positions 32b, and each NG lens assembly setting position may temporarily place one NG lens assembly for blanking and recycling. The NG lens assembly refers to a lens assembly that is determined to be unsuitable for assembling the camera module (for example, it is determined that the lens assembly cannot meet the predetermined imaging quality requirement through focus correction in the process of focus correction).
Further, in an embodiment of the present application, the lens assembly to be assembled may include a motor and an optical lens mounted to the motor; the intake head 71 is a powered gripper adapted to grip the lens assembly and electrically connect the motor. In this embodiment, the lens assembly moving platform 30 may also be referred to as a motor moving platform, and the lens assembly may also be referred to as a motor lens assembly. The motor moving platform is provided with a second material carrying platform 31 for placing the motor lens assembly, and the second material carrying platform 31 can be adjusted and moved in the directions of an x axis, a y axis and a z axis. A back focus module (e.g., the reference photosensitive chip carrier 32) may be further disposed on one side of the second material carrier 31, and is used for disposing a standard reference photosensitive chip. The back focus module can adjust and move in the directions of an x axis, a y axis and a z axis, when the focusing correction mechanism 70 clamps the motor lens component, the back focus test can be performed with a standard chip (namely, a standard reference photosensitive chip) on the lens component moving platform 30 through a voice coil motor moving at a high speed, acceleration of a high-speed camera and a hardware algorithm, so that the clear position of the standard chip relative to the lens component is quickly obtained, and the tilt and the correction parameters of the motor lens component are calculated. In this embodiment, the lens assembly moving platform 30 is further provided with a lower vision camera for taking the lower end face image of the motor lens assembly from bottom to top, i.e. shooting the bottom view film, so as to measure the lens optical center position of the motor lens assembly. The bottom view sheet may also be used to identify the rotation angle of the lens assembly. The rotation angle refers to a rotation angle on the xoy plane, i.e., a rotation angle in the Rz direction.
Further, fig. 8 shows a schematic perspective view of a camera module assembling apparatus with a target in an embodiment of the present application. Referring to fig. 8, in the present embodiment, the focusing mechanism 70 further includes a test target 72 disposed above the pick-up head 71 for providing a test calibration pattern. In this embodiment, the test target 72 has a large area, and thus the test target 72 is mounted on a separate stand. When the test target 72 has a small area, the test target 72 may be mounted on the riser 70a of the focus correction mechanism 70 (see fig. 6).
Further, in an embodiment of the present application, when the photosensitive component moving platform 20 moves to the assembling station, according to the obtained photosensitive center position of the photosensitive component to be assembled and the optical center position of the lens component to be assembled, the first material carrying table 21 is moved to perform translational adjustment on the photosensitive component so that the photosensitive center is aligned with the optical center; the focusing correction mechanism 70 is further configured to move the pickup head 71 to perform tilt adjustment on the lens assembly to be assembled according to the obtained tilt angle of the lens assembly to be assembled with respect to the reference surface and the tilt angle of the photosensitive assembly to be assembled with respect to the reference surface, so that the bottom surface of the lens assembly is parallel to the top surface of the photosensitive assembly. In this embodiment, the first material carrying table 21 has a photosensitive assembly setting position, and the photosensitive assembly setting position can be used to fix the photosensitive assembly to be assembled on the first material carrying table 21. In other embodiments, the first material stage 21 may also have a plurality of photosensitive assembly setting positions, so as to improve the parallelism of the focusing assembly process, or temporarily place a photosensitive assembly to be recovered (sometimes referred to as an NG photosensitive assembly) that is determined to be incapable of assembling the camera module.
Further, in an embodiment of the present application, the photosensitive assembly detection processing station includes a painting glue detection station and a photosensitive parameter testing station. The photosensitive assembly detection processing mechanism can comprise a painting detection mechanism and a photosensitive parameter testing mechanism. For saving space, light sensing component detects processing mechanism and drawing in this embodiment and glues detection mechanism and install through same riser in the base. Fig. 5 is a schematic perspective view illustrating a painting glue detecting mechanism and a photosensitive parameter testing mechanism according to an embodiment of the present application. Referring to fig. 5, in this embodiment, the glue detection mechanism is installed in the base and set up in glue detection station, glue detection mechanism includes glue device 61 and camera device 62, glue device 61 is used for glue the surface of waiting to assemble the photosensitive assembly, camera device 62 is used for shooting the overlook picture of waiting to assemble the photosensitive assembly, and according to overlook the picture discernment wait to assemble the position at the sensitization center of photosensitive assembly. An illuminating device 62a may be disposed below the camera device 62, and the illuminating device 62a may provide an annular light source to illuminate the object while avoiding blocking the imaging optical path of the camera device 62. Optionally, the glue painting device 61 includes a mechanical arm connected to a control center or another mechanical structure capable of achieving the same function, one end of the mechanical structure is provided with a UV glue dispensing syringe, and the control center controls the glue painting head to dispense glue and perform glue painting operation on the photosensitive assembly. The camera device 62 may be an upper camera device disposed at a height higher than the first material carrying platform, and the upper camera device may perform image shooting on the photosensitive assembly after painting, so as to perform painting and dirt detection. The photosensitive parameter testing mechanism is installed on the base and arranged at the photosensitive parameter testing station, and comprises a multipoint height measuring device 63 which is used for carrying out multipoint height measurement on the surface of the photosensitive component to be assembled so as to obtain the height of the photosensitive component to be assembled and calculate the inclination angle of the photosensitive component to be assembled relative to the reference surface. Referring to fig. 5, in the present embodiment, in the y-axis direction, the multi-point height measuring device 63, the painting device 61 and the camera device 62 are mounted on the same vertical plate 60a, and the multi-point height measuring device 63 is located between the painting device 61 and the camera device 62. It should be noted that in other embodiments of the present application, the multi-point altimeter 63 may be located in other suitable positions. For example, the multi-point altimeter 63 may be mounted separately on another independent riser.
Further, still referring to fig. 6, in an embodiment of the present application, the focusing correction mechanism 70 further includes an exposure device 73, configured to expose the glue on the surface of the photosensitive component to be assembled, so as to cure the glue, so as to connect and fix the photosensitive component to be assembled and the lens component to be assembled. The exposure device 73 may be an exposure lamp, and the exposure lamp is used to pre-fix the motor lens assembly and the photosensitive assembly in the proper relative position (i.e., the corrected relative position), so as to complete the packaging process of the camera module (i.e., complete the assembly of the camera module).
Further, fig. 13 is a schematic perspective view illustrating the first linear guide rail and the carrier plate circulation mechanism in an embodiment of the present application. Referring to fig. 13, in an embodiment of the present application, a carrier plate transfer mechanism may be further disposed on the base, and the carrier plate transfer mechanism may include a first linear guide 201 and a plurality of carrier plate moving platforms 202 mounted on the first linear guide 201. The carrier moving platform 202 may carry a tray (a tray may also be referred to as a carrier) containing a plurality of photosensitive assemblies to be assembled or a tray containing a plurality of lens assemblies to be assembled. In the foregoing, the photosensitive component moving platform and the lens component moving platform are also mounted on the linear guide, and for the convenience of distinction, the linear guide on which the photosensitive component moving platform and the lens component moving platform are mounted is referred to as a second linear guide 203. In this embodiment, the first linear guide 201 may be divided into two sections, one section is dedicated to moving the tray on which the photosensitive component is placed, and the other section is dedicated to moving the tray on which the lens component is placed. In yet another embodiment, the first linear guide 201 is parallel to the second linear guide 203. The first linear guide 201 may be a complete guide, and a plurality of carrier plate moving platforms may move within a complete stroke of the first linear guide 201.
Further, fig. 9 is a schematic top view showing a layout of a camera module assembly line in an embodiment of the present application. In this embodiment, first unloading mechanism of going up can include the support and install in the third linear guide 204 on support top, and can follow the photosensitive element that third linear guide 204 removed takes up the head, and this photosensitive element takes up the head and can take out photosensitive element from the charging tray, then moves it to first unloading station 211 of going up to place in the photosensitive element moving platform who is located second linear guide 203. The third linear guide 204 may be perpendicular to the first linear guide 201 and the second linear guide 203. Similarly, the second loading and unloading mechanism may include a rack and a fourth linear guide 205 mounted on the top of the rack, and a lens assembly taking head movable along the fourth linear guide 205, and the lens assembly taking head may take out the lens assembly from the tray, move it to the second loading and unloading station 212, and place it on the lens assembly moving platform located on the second linear guide 203. The fourth linear guide 205 may be perpendicular to the first linear guide 201 and the second linear guide 203.
Further, fig. 7 shows a flowchart of an image pickup module assembling method based on the image pickup module assembling apparatus in an embodiment of the present application, and referring to fig. 7, the assembling method includes:
And 2, moving the photosensitive assembly moving platform to a first feeding and discharging station, moving the photosensitive assembly to be assembled to the first feeding and discharging station from the first feeding position by the first feeding and discharging mechanism, and placing the photosensitive assembly on a first material carrying platform of the photosensitive assembly moving platform. The first material carrying platform can be provided with a first setting position, and the photosensitive assembly to be assembled can be fixed on the first material carrying platform.
And 4, after the glue is drawn, continuously moving the photosensitive assembly moving platform, so that the photosensitive assembly is arranged below the upper vision camera (namely, is moved to a photosensitive assembly parameter detection station), and the upper vision camera performs visual detection on the glue line and the dirt. Meanwhile, the upper vision camera also takes pictures to determine OC and rotation of the chip in the photosensitive assembly to obtain OC0And rotation0. Where OC denotes an optical center, which in this step refers to the center of the photosensitive region of the photosensitive assembly, and therefore may also be referred to as a photosensitive center, rotation denotes a rotation angle of the photosensitive assembly in a top view, i.e., a rotation angle in an Rz direction, and Rz denotes a degree of freedom of movement of rotation about the z axis.
And meanwhile, synchronously performing the steps 6-10 with the steps 1-5:
and 6, moving the support plate of the motor lens assembly to a second feeding position from the material box by the transmission mechanism.
And 7, moving the lens component moving platform to a second feeding and discharging station, and moving the motor lens component from the second feeding position by the second feeding and discharging mechanism and placing the motor lens component on a second material carrying platform on the lens component moving platform.
And 8, moving the lens component moving platform to enable the motor lens component to be located at the assembling station, moving a second material carrying platform on the lens component moving platform upwards, clamping the motor lens component by an electrified clamping jaw of the focusing correction mechanism, and electrifying the motor lens component.
And 9, moving the lens component moving platform to enable the lower vision camera to be positioned right below the clamped motor lens component, shooting the bottom of the motor by using the lower vision camera, and obtaining the rotation angle rotation of the motor lens component at the elevation angle according to the image1。
Steps 11-13 executed after steps 1-10 are all completed:
and step 11, moving the photosensitive assembly moving platform to an assembly station, so that the photosensitive assembly is positioned below the motor lens assembly.
And step 12, correcting the relative positions of the lens assembly and the photosensitive assembly and bonding the lens assembly and the photosensitive assembly. In particular, the (OC) can be calculated from software0-OC1)，(rotation0-rotation1)，(tilt0-tilt1)，(h0-h1) And (2) adjusting the active focusing device (in this embodiment, the active focusing device may be formed by a corrective focusing mechanism and an adjusting mechanism of the photosensitive component moving platform) according to the calculation result, so that the lens component is at a suitable position relative to the photosensitive component, performing glue pre-curing (for example, pre-curing UV glue through exposure), and fixing the relative positions of the lens component and the photosensitive component.
And step 13, moving the photosensitive assembly moving platform to drive the camera module finished product to move to a first loading and unloading station, and taking out the camera module finished product and moving the camera module finished product to a first unloading position by the first loading and unloading mechanism.
Because the module of making a video recording of this application need focus and rectify and accomplish the equipment again, consequently, can be called the module of making a video recording equipment of making a video recording of this application and focus equipment, or focus equipment for short hereinafter.
Further, still referring to fig. 9, in an embodiment of the present application, there is also provided a camera module assembling line based on the camera module focusing assembling apparatus, the line including a photosensitive component assembling apparatus 100, a camera module focusing assembling apparatus 200, and a lens component assembling apparatus 300. In the camera module focusing assembly apparatus 200, the first linear guide 201 may be disposed in a central region of the base, two sides of the first linear guide 201 may be respectively disposed with one second linear guide 203, and a focusing assembly line is disposed on each second linear guide 203, where the focusing assembly line is composed of the aforementioned modules of the focusing assembly process, specifically, the focusing assembly line includes: the optical lens module moving mechanism comprises a photosensitive module moving platform and a lens module moving platform which are arranged on a linear guide rail, a first feeding and discharging mechanism (only one track is drawn in fig. 9, and it should be noted that in some embodiments, the first feeding and discharging mechanism may comprise a semi-finished product feeding mechanism and a finished product discharging mechanism, which may have independent tracks respectively, and will not be described in detail below), a second feeding and discharging mechanism, a photosensitive module detection processing mechanism, and a focusing correction mechanism. The two focusing assembly lines may share the same first loading and unloading mechanism 40 and the same second loading and unloading mechanism 50. In each focusing assembly line, a first loading/unloading station 231, a photosensitive assembly detection processing station 232, an assembly station 233, and a second loading/unloading station 234 may be disposed along the second linear guide 203. Under the design scheme of this embodiment, the production efficiency of the assembly link of focusing can improve about one time, consequently can promote production efficiency effectively. Meanwhile, the first linear guide rail is arranged in the center, and the two sides of the first linear guide rail are respectively provided with a focusing assembly line, so that the space can be reasonably utilized, the layout of the equipment is more compact, and the yield per unit area is improved. Further, fig. 15 shows a schematic top view of a focus assembly apparatus in an embodiment of the present application. As can be seen, the first loading and unloading station 231, the photosensitive assembly detection processing station 232, the assembly station 233 and the second loading and unloading station 234 are sequentially arranged along the second linear guide. Still further, FIG. 16 shows a top view schematic of a focus assembly apparatus marking the semi-finished product and the finished product flow path of the focus assembly line in one embodiment of the present application. Wherein the semi-finished product refers to the photosensitive assembly and the lens assembly to be assembled. The finished product refers to the camera module after the assembly is completed. Referring to fig. 16, the photosensitive assembly and the lens assembly to be assembled enter the focusing assembly line from the left and right ends, respectively, the assembly is completed at the assembly station 233, and then the finished product is further circulated to the left and discharged from the left end of the focusing assembly line along the finished product circulation route. Note that, in the present embodiment, the semi-finished products (i.e., NG semi-finished products including the NG photosensitive assemblies and the NG lens assemblies) determined to be unable to be assembled may be discharged along the reverse path of the semi-finished product circulation route indicated in fig. 16. The finished product discharge position is also not limited to the left end of the device (i.e., the photosensitive assembly feed end), and in other embodiments, the finished product may also be discharged from the right end of the device (i.e., the lens assembly feed end).
Further, still referring to fig. 9, in an embodiment of the present application, a first magazine 235 and a second magazine 236 (refer to fig. 2 in combination) may be respectively disposed at both ends of the first linear guide 201, and the first magazine 235 and the second magazine 236 may be used for storing the carrier plate stack. The first storage bin 235 may be used to store a carrier stack formed by stacking the carrier of the photosensitive device to be assembled, and the second storage bin 236 may be used to store a carrier stack formed by stacking the carrier of the lens device to be assembled. The first and second magazines 235, 236 may have lift mechanisms and corresponding mechanisms to divert (e.g., eject directly from the magazine or transfer with a uptake mechanism) a carrier plate at the top of the carrier plate stack onto the carrier plate moving platform of the first linear guide rail 203.
Further, in an embodiment of the present application, a plurality of focusing assembly devices can be spliced in parallel, so that more focusing assembly lines are concentrated in the same production line, and the production capacity of the focusing assembly link is improved. FIG. 10 shows a production line formed by splicing two focusing assembly apparatuses shown in FIG. 9 in parallel. Referring to fig. 10, in the embodiment, four focusing assembly lines may be concentrated in the same production line, so as to increase the production capacity of the focusing assembly link to four times of the original capacity, thereby alleviating the bottleneck effect of the focusing assembly link, and making full use of the production capacities of the photosensitive assembly device 100 and the lens assembly device 300, thereby effectively increasing the unit area production rate of the production line.
Further, in an embodiment of the present application, another arrangement of the focusing assembly apparatus is also provided. Fig. 11 is a schematic top view showing a layout of a camera module assembly line according to another embodiment of the present application. Referring to fig. 11, in the present embodiment, the camera module assembling line includes a photosensitive-component assembling apparatus 100, a camera module focusing assembling apparatus 200, and a lens-component assembling apparatus 300. The difference with the embodiment of fig. 9 is that the first linear guide 201 may comprise two guide rail sections. For convenience of description, the two guide rail segments of the first linear guide rail 201 in this embodiment are respectively referred to as a first segment 201a and a second segment 201b, and the first segment 201a and the second segment 201b may be respectively provided with a conveying belt to drive the sliding blocks to slide, so that the carrier moving platform 202 may move along the first segment 201a and the second segment 201 b. As shown in fig. 13, the first segment 201a may extend to the outside of the base, so that the focus assembling apparatus of the present embodiment may perform product circulation with an adjacent apparatus in the production line. The adjacent equipment in the production line may be, for example, the photosensitive assembly assembling equipment 100, which may be used to assemble the photosensitive assemblies and place the assembled photosensitive assemblies into a carrier plate (or called a tray), and then place the carrier plate on the carrier plate moving platform 202 of the first segment 201a, so as to realize the circulation of the photosensitive assemblies between two adjacent equipments. Second section 201b may also extend to the outside of the base so that focus assembly device 200 of the present embodiment can be product-cycled with an adjacent device on the other side of the production line. Here, the adjacent device on the other side of the production line may be, for example, the lens assembly assembling device 300, which may be used to assemble the lens assembly and place the assembled lens assembly into a carrier plate (or called a tray), and then place the carrier plate on the carrier plate moving platform 202 of the second section 201b, so as to realize the circulation of the lens assembly between two adjacent devices. Note that after splicing, the adjacent focusing assembly apparatuses 200 may share the first segment 201a or the second segment 201b, that is, the adjacent focusing assembly apparatuses 200 may share the transportation rail of the photosensitive component carrier plate or may share the transportation rail of the lens component carrier plate.
Further, still referring to fig. 11, in an embodiment of the present application, a carrier plate circulation mechanism 220 may be further disposed on the base. The carrier board circulation mechanism 220 includes a fifth linear guide rail 206 and a carrier board pick-up head 207 mounted on the fifth linear guide rail 206 and movable along the fifth linear guide rail 206, wherein the carrier board pick-up head 207 (e.g. a carrier board suction cup) can pick up (e.g. suck) a carrier board to move the carrier board between the first section 201a and the second section 201b of the first linear guide rail 201.
Further, fig. 12 is a layout diagram of a camera module assembling line in which a plurality of focus assembling apparatuses are spliced in parallel according to an embodiment of the present application. Referring to fig. 12, in this embodiment, a carrier sheet circulation mechanism 220 may be further disposed on the base, the carrier sheet circulation mechanism 220 includes a fifth linear guide rail 206 and a carrier sheet pick-up head 207 mounted on the fifth linear guide rail 206 and movable along the fifth linear guide rail 206, and the carrier sheet pick-up head 207 (e.g., a carrier sheet suction cup) may pick up (e.g., suck) a carrier sheet to move the carrier sheet between the first section 201a and the second section 201b of the first linear guide rail 201. In this way, when a plurality of focus assembly apparatuses 200 are spliced in parallel, the carrier plate can be circulated between different focus assembly apparatuses 200. For example, the photosensitive device carrier can be moved from the first segment 201a to the second segment 201b of the first linear guide rail 201 by the carrier pick-up head of one focusing assembly apparatus, and then transferred to the first segment 201d of the first linear guide rail 201c of another adjacent focusing assembly apparatus 200b along the second segment 201b, when the photosensitive device carrier is at the first feeding position of another focusing assembly apparatus, the photosensitive device can be picked up by the first feeding and discharging mechanism of another focusing assembly apparatus 200b and moved to the focusing assembly line for assembly. Based on the thought, the circulation of the photosensitive assembly carrier plate and the lens assembly carrier plate between different focusing assembly devices can be realized. At both ends of the entire production line, the photosensitive-component assembling apparatus 100 and the lens-component assembling apparatus 300 may be arranged, respectively, to constitute a complete camera-module assembling production line. The focusing assembly equipment 200 of the embodiment has extremely strong expandability, and the production capacity of the focusing assembly link can be flexibly expanded through simple splicing, so that the main bottleneck of improving the production efficiency of the production line based on focusing assembly is overcome. And, because in the design of this embodiment, the base of adjacent equipment can be close to the concatenation, hardly leaves the gap, consequently very compact on the overall arrangement is favorable to promoting the unit area output capacity of making a video recording the module. Because the module of making a video recording often needs to produce in the dust-free workshop, the maintenance of dustless environment needs extra expense, consequently when the promotion unit area output capacity of production line, will very be favorable to promoting the economic benefits of this production line.
On the other hand, the focusing assembly equipment of the embodiment is convenient for parallel splicing, so that the number of the focusing assembly equipment in a single production line can be flexibly selected according to the production efficiency of the single focusing assembly line. For example, for lens assemblies with motors, whose focus assembly times are generally longer, a greater number of focus assembly devices may be selected for parallel connection. For lens assemblies without a motor, the focus assembly time is relatively short, so a smaller number of focus assembly devices, such as only one focus assembly device, may be used.
In some embodiments of the present application, the loading and unloading of the carrier plate may be accomplished without the use of silos (e.g., first silo 235 and second silo 236 as shown in fig. 9). For example, referring to fig. 11 and 12, in some embodiments, a carrier plate taking mechanism may be respectively disposed on the photosensitive component assembling apparatus 100 and the lens component assembling apparatus 300, and a carrier plate carrying the photosensitive component array or the lens component array may be directly placed on the carrier plate moving platform 202 on the first linear guide 201 by using the carrier plate taking mechanism. Then, the carrier moving platform 202 moves the carrier to the first carrier feeding/discharging station 237 or the second carrier feeding/discharging station 238, so as to couple 50 with the first loading/unloading mechanism 40 or the second loading/unloading mechanism, thereby loading/unloading the photosensitive module or the lens module.
Further, still referring to fig. 13, in the present embodiment, the first linear guide 201 includes a first segment 201a and a second segment 201b, and the first segment 201a and the second segment 201b respectively have carrier plate moving platforms 202a and 202 b. In this embodiment, the carrier plate moving platforms 202a and 202b of the first segment 201a and the second segment 201b may be disposed at different heights so as to avoid. The first section 201a and the second section 201b each have a bracket, the bracket 209a of the first section 201a may be disposed in the center of the guide rail (for example, may be disposed on the central axis of the first linear guide 201), and the bracket 209b of the second section 201b may be disposed on both sides of the guide rail (for example, may be disposed on both sides of the central axis of the first linear guide 201, and it should be noted that, for the sake of simplicity, not all the brackets 209b are indicated in fig. 13).
Further, fig. 14 shows a perspective view of a first section of a first linear guide in one embodiment of the present application. Referring to fig. 14, the first section 201a may include a bracket and a rail mounted on the top of the bracket, the rail may be connected to a carrier moving platform 202 at the side, and the carrier moving platform 202 may have an inverted "L" shape. The inverted "L" shaped carrier plate moving platform 202 may include a vertical portion 202a and a horizontal portion 202b, wherein the vertical portion 202a is movably connected to the outer side surface of the rail so as to slide along the rail, and the horizontal portion 202b is disposed above the rail. The bottom of the vertical portion 202a may be fixed to a transmission belt 208, and the transmission belt 208 may be driven by a power mechanism to move, so as to drive the carrier moving platform 202 to slide along the track. In this embodiment, two outer side surfaces of the rail may be respectively installed with one inverted "L" -shaped carrier plate moving platform 202, and the heights of the horizontal portions 202b of the two inverted "L" -shaped carrier plate moving platforms 202 may be staggered, so that the horizontal portions 202b (areas for carrying carrier plates) of the two inverted "L" -shaped carrier plate moving platforms 202 may be overlapped in a top view. In other words, the horizontal portions 202b of the two inverted "L" shaped carrier plate moving platforms 202 are located at different heights. Thus, both the two inverted L-shaped carrier plate moving platforms 202 can move within the complete stroke of the first segment, and the two inverted L-shaped carrier plate moving platforms 202 do not interfere with each other. The design can make the structure of the equipment more compact, and is favorable for improving the yield per unit area. Furthermore, because the positions of the two carrier plates can be overlapped in a top view angle, the carrier plate circulation mechanism does not have a track in the vertical direction (the vertical direction is a direction perpendicular to the first linear guide rail and parallel to the surface of the base), and the carrier plates on the two inverted L-shaped carrier plate moving platforms can be operated (for example, absorbed and placed, so that the carrier plates can be circulated among different sections), thereby further reducing the number of mechanisms and being more beneficial to improving the yield of unit area.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention may be modified or substituted with equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered by the scope of the claims of the present invention.
Claims (19)
1. The utility model provides a module equipment of making a video recording which characterized in that includes:
a base;
the first linear guide rail is arranged on the surface of the base and used for conveying a carrier plate, and the carrier plate is suitable for placing a plurality of photosensitive assemblies to be assembled or a plurality of lens assemblies to be assembled; and
two assembly lines of focusing, two assembly lines of focusing set up respectively in the both sides of first straight line guide rail, wherein every assembly line of focusing includes:
the second linear guide rail is arranged on the base, is parallel to the first linear guide rail, and is sequentially provided with a first feeding and discharging station, a photosensitive assembly detection processing station, an assembly station and a second feeding and discharging station along the second linear guide rail;
the photosensitive assembly moving platform is arranged on the second linear guide rail and can move along the second linear guide rail in a section from the first loading and unloading station to the assembling station; the photosensitive assembly moving platform is provided with at least one first material carrying platform, and the first material carrying platform is suitable for moving in the directions of an x axis, a y axis and a z axis; the x axis and the y axis are both parallel to a reference surface of the base, the x axis direction is perpendicular to the second linear guide rail, the y axis direction is consistent with the direction of the second linear guide rail, and the z axis direction is perpendicular to the reference surface;
the lens component moving platform is arranged on the second linear guide rail and can move along the second linear guide rail in a section from the second loading and unloading station to the assembling station; the lens assembly moving platform is provided with at least one second material carrying platform, and the second material carrying platform is suitable for moving in the directions of an x axis, a y axis and a z axis;
the photosensitive assembly detection processing mechanism is used for identifying the position of a photosensitive center of the photosensitive assembly to be assembled according to the overlooking picture, obtaining the height of the photosensitive assembly to be assembled based on multi-point height measurement and calculating the inclination angle of the photosensitive assembly to be assembled relative to the reference surface; and
and the focusing correction mechanism is arranged on the base and is arranged at the assembling station, and comprises an inclination angle adjusting mechanism and a shooting head arranged on the inclination angle adjusting mechanism, wherein the shooting head is suitable for shooting the lens assembly, and the inclination angle adjusting mechanism is suitable for moving in Rx and Ry directions, wherein the Rx and Ry directions are rotating directions rotating around an x axis and rotating around a y axis.
2. The camera module assembling apparatus according to claim 1, further comprising: the first loading and unloading mechanism is arranged on the base and is arranged at the first loading and unloading station, and the first loading and unloading mechanism is suitable for moving a photosensitive assembly to be assembled to the first loading and unloading station and placing the photosensitive assembly on the photosensitive assembly moving platform; the second loading and unloading mechanism is arranged on the base and is arranged on the second loading and unloading station, and the second loading and unloading mechanism is suitable for moving the lens component to be assembled to the second loading and unloading station and placing the lens component on the lens component moving platform;
the two focusing assembly lines share the same first loading and unloading mechanism; and the two focusing assembly lines share the same second loading and unloading mechanism.
3. The camera module assembling apparatus according to claim 1, wherein the first loading and unloading mechanism includes a semi-finished product loading mechanism and a finished product unloading mechanism, and the semi-finished product loading mechanism and the finished product unloading mechanism each have an independent rail and a material intake head.
4. The camera module assembling apparatus according to claim 1, wherein the second loading/unloading mechanism is used for loading a semi-finished product.
5. The camera module assembling apparatus according to claim 1, wherein the first linear guide is mounted with a plurality of carrier moving platforms, and each carrier moving platform is adapted to move along the first linear guide under the driving of a conveyor.
6. The camera module assembling apparatus according to claim 5, wherein the first linear guide comprises a first segment and a second segment, and the first segment and the second segment have independent transmission belts to respectively drive the carrier plate moving platforms mounted on the first segment and the second segment to move.
7. The camera module assembly apparatus of claim 5, further comprising a carrier plate circulation mechanism mounted to the base for effecting circulation of the carrier plate between the first section and the second section.
8. The camera module assembling apparatus according to claim 7, wherein the carrier transfer mechanism includes a fifth linear guide and a carrier pick-up head mounted on the fifth linear guide and movable along the fifth linear guide.
9. The camera module assembling apparatus according to claim 7, wherein the carrier plate moving platforms of the first section and the second section are disposed at different heights.
10. The camera module assembling apparatus according to claim 7, wherein the first section includes a stand and a rail mounted on a top end of the stand, the carrier moving platform has an inverted "L" shape and includes a vertical portion and a horizontal portion; the vertical part is movably connected with the outer side surface of the track to slide along the track, and the horizontal part is arranged above the track and used for bearing the carrier plate; the bottom of the vertical portion is fixed to the conveyor belt.
11. The camera module assembling apparatus according to claim 10, wherein one inverted "L" shaped carrier plate moving platform is installed on each of two outer side surfaces of the rail, and the horizontal portions of the two carrier plate moving platforms are staggered in height from each other.
12. The camera module assembly device of claim 1, wherein the lens assembly moving platform further comprises a reference photosensitive chip stage for placing a standard reference photosensitive chip, and the reference photosensitive chip stage is adapted to move in the x-axis, y-axis and z-axis directions; when the lens component moving platform moves to the assembling station, the shooting head shoots the lens component to be assembled, the standard reference photosensitive chip moves to the back focal position of the lens component to be assembled, and the back focal test is carried out on the lens component to be assembled so as to obtain the inclination angle of the lens component to be assembled relative to the reference plane and the optical center position of the lens component to be assembled.
13. The camera module assembly device of claim 12, wherein the lens module moving platform further comprises a second photographing device adapted to photograph a bottom view of the lens module to be assembled and to identify a rotation angle of the lens module to be assembled according to the bottom view.
14. The camera module assembly apparatus of claim 13, wherein the lens assembly to be assembled comprises a motor and an optical lens mounted to the motor; the shooting head is an electrified clamping jaw which is suitable for clamping the lens assembly and electrically conducting the motor; the focusing correction mechanism also comprises a test target plate arranged above the shooting head and used for providing a test calibration pattern.
15. The camera module assembling apparatus according to claim 13, wherein when the photosensitive assembly moving platform moves to the assembling station, the first stage is moved to perform translational adjustment on the photosensitive assembly so as to align the photosensitive center with the optical center according to the obtained photosensitive center position of the photosensitive assembly to be assembled and the obtained optical center position of the lens assembly to be assembled; the focusing correction mechanism is also used for moving the shooting head to adjust the inclination angle of the lens component to be assembled according to the obtained inclination angle of the lens component to be assembled relative to the reference surface and the obtained inclination angle of the photosensitive component to be assembled relative to the reference surface; and the focusing correction mechanism also comprises an exposure device which is used for exposing the glue on the surface of the photosensitive component to be assembled so as to solidify the glue, thereby connecting and fixing the photosensitive component to be assembled and the lens component to be assembled.
16. The camera module assembling apparatus according to claim 1, wherein the photosensitive assembly detection processing station includes a painting detection station and a photosensitive parameter test station;
photosensitive assembly detects processing apparatus and constructs includes: the glue drawing detection mechanism is arranged on the base and is arranged at the glue drawing detection station, the glue drawing detection mechanism comprises a glue drawing device and a camera device, the glue drawing device is used for drawing glue on the surface of the photosensitive assembly to be assembled, the camera device is used for shooting an overlooking picture of the photosensitive assembly to be assembled, and the position of a photosensitive center of the photosensitive assembly to be assembled is identified according to the overlooking picture; and
and the photosensitive parameter testing mechanism is arranged on the base and is arranged at the photosensitive parameter testing station, and the photosensitive parameter testing mechanism comprises a multipoint height measuring device which is used for carrying out multipoint height measurement on the surface of the photosensitive component to be assembled so as to obtain the height of the photosensitive component to be assembled and calculate the inclination angle of the photosensitive component to be assembled relative to the reference surface.
17. The utility model provides a module assembly manufacturing line makes a video recording which characterized in that includes:
the photosensitive assembly assembling equipment is used for assembling the photosensitive assembly and putting the assembled photosensitive assembly into the photosensitive assembly carrier plate;
the lens assembly assembling equipment is used for assembling the lens assembly and putting the assembled lens assembly into the lens assembly carrier plate; and
the camera module assembly device of any one of claims 1-16;
the photosensitive assembly assembling equipment and the lens assembly assembling equipment are respectively positioned at two ends of the first linear guide rail and respectively output the photosensitive assembly carrier plate and the lens assembly carrier plate to a carrier plate moving platform arranged on the first linear guide rail.
18. The camera module assembly production line of claim 17, wherein the number of the camera module assembly devices is at least two, at least two camera module assembly devices are spliced in parallel, and each focusing assembly line of each camera module assembly device runs in parallel; the photosensitive assembly carrier plate, the lens assembly carrier plate and a carrier plate for bearing finished products are circulated between the at least two camera module assembly devices through the first linear guide rail.
19. The camera module assembly line of claim 18, wherein in each camera module assembly apparatus, the first linear guide comprises a first section and a second section, and the first section and the second section have independent conveyor belts to respectively drive the carrier plate moving platforms mounted on the first section and the second section to move; the camera module assembling equipment further comprises a carrier plate circulation mechanism arranged on the base, and the carrier plate circulation mechanism is used for realizing the circulation of the carrier plate between the first section and the second section; the carrier plate circulating mechanism comprises a fifth linear guide rail and a carrier plate shooting head which is arranged on the fifth linear guide rail and can move along the fifth linear guide rail; the photosensitive assembly carrier plate, the lens assembly carrier plate and a carrier plate used for bearing finished products are connected with the first linear guide rail through the first linear guide rail.
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| CN202011209472.XA CN114434141B (en) | 2020-11-03 | 2020-11-03 | Camera module assembling equipment and assembling production line |
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