Camera module jig

Abstract

The embodiment of the utility model discloses a camera module jig. The camera module jig comprises a base plate, at least one clamping assembly and at least one limiting piece, the base plate is provided with at least one containing groove, each containing groove is internally provided with a bearing platform and a positioning table, each limiting piece comprises a moving part and two oppositely-arranged extending parts, and limiting grooves are formed among the two extending parts, the moving parts and the top faces of the positioning tables. Through the limiting of the limiting groove, the positioning of the flexible circuit board is realized, so that the processing precision of the flexible circuit board can be controlled within the same tolerance range, the precision requirement in the subsequent process is met, and the yield is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of camera processes, and particularly relates to a jig for a camera module. Background Art

[0002] When installing and assembling the shielding cover of a mobile phone camera module, a jig for the camera module needs to be used to carry the camera module to perform the automated operation of the shielding cover installation and assembly project. The camera module to be processed includes a voice coil motor and a flexible circuit board connected to the side of the voice coil motor, and connection contacts are arranged on the flexible circuit board. To ensure the process accuracy, it is necessary to position the camera module to reduce the influence of errors on the product. The existing jig for the camera module mainly positions the camera module by positioning the voice coil motor. However, due to the flexible characteristics of the flexible circuit board, during the process of positioning the voice coil motor, the flexible circuit board will be driven to have position offset and warping, and it is difficult to follow the voice coil motor to achieve positioning, resulting in difficult alignment of the connection contacts and large errors in subsequent processes, causing poor testing and affecting the product yield. Summary of the Utility Model

[0003] In view of this, the purpose of the utility model is to provide a jig for a camera module, which realizes the positioning of the flexible circuit board, enables its processing accuracy to be controlled within the same tolerance range, meets the accuracy requirements in subsequent processes, and improves the yield.

[0004] The embodiment of the utility model provides a jig for a camera module, including:

[0005] A substrate is provided with at least one placement groove, and each placement groove is provided with a bearing platform and a positioning platform. The positioning platform protrudes from one side of the bearing platform, and adsorption holes are formed on the positioning platform. The bearing platform and the positioning platform divide the placement groove into a positioning groove and two relatively arranged sliding grooves. The two sliding grooves are relatively arranged on both sides of the bearing platform, and the positioning groove is located outside the positioning platform;

[0006] At least one set of clamping components, each set of clamping components includes two clamping pieces, which are respectively slidably arranged in the corresponding sliding grooves. Each set of clamping components moves towards the bearing platform to fix the voice coil motor of the camera module on the bearing platform;

[0007] At least one limiting piece is movably arranged longitudinally on the positioning platform. The limiting piece includes a moving part and two extending parts arranged on the same side of the moving part. The two extending parts are relatively arranged, and a limiting groove for fixing the flexible circuit board of the camera module is formed between the two extending parts, the moving part and the top surface of the positioning platform.

[0008] Optionally, the top surface position of the limiting piece is higher than the top surface position of the positioning platform.

[0009] Optionally, an elastic member is further disposed in the positioning groove, and the elastic member is located below the moving portion.

[0010] Optionally, the positioning platform includes a base platform and an adsorption platform. The adsorption platform is disposed on the top of the base platform, and its outer contour is consistent with the contour of the limiting groove. The base platform forms a stepped shape with the adsorption platform on both sides in the length direction of the adsorption platform.

[0011] Optionally, the two extension portions are located on the upper part of the base platform and are respectively disposed on both sides of the adsorption platform along the length direction. The limiting member slides in the positioning groove along the height direction of the adsorption platform.

[0012] Optionally, the jig further includes a limiting piece connected to the substrate. The limiting piece is located above the moving portion to limit the moving portion.

[0013] Optionally, an avoidance groove is formed in the positioning platform.

[0014] Optionally, a guiding post is further disposed in the positioning groove. The top end of the guiding post penetrates through the elastic member and extends into the moving portion to guide the movement of the limiting member.

[0015] Optionally, the carrying platform is arranged in imitation of the voice coil motor, and the positioning platform is arranged in imitation of the flexible circuit board.

[0016] Optionally, each clamping member has two clamping arms arranged vertically, and the two clamping arms respectively extend along the side direction of the carrying platform.

[0017] An embodiment of the present invention provides a camera module jig, including a substrate, at least one set of clamping components and at least one limiting member. The substrate is provided with at least one placement groove. Each placement groove is provided with a carrying platform and a positioning platform. The limiting member includes a moving portion and two oppositely arranged extension portions. A limiting groove is formed between the two extension portions, the moving portion and the top surface of the positioning platform. Through the limitation of the limiting groove, the positioning of the flexible circuit board is realized, so that the processing accuracy can be controlled within the same tolerance range, meeting the accuracy requirements in subsequent processes and improving the yield. Description of the Drawings

[0018] Through the following description of the embodiments of the present invention with reference to the drawings, the above and other objects, features and advantages of the present invention will become more clear. In the drawings:

[0019] Figure 1 is a three-dimensional structural schematic diagram of a placement groove in an embodiment of the present invention;

[0020] Figure 2Schematic diagram of the planar structure of a placement groove according to an embodiment of the present utility model;

[0021] Figure 3 Schematic diagram of the structure of a placement groove after removing the limiting piece according to an embodiment of the present utility model;

[0022] Figure 4 Schematic diagram of the structure of a placement groove after removing the limiting piece and the limiting member according to an embodiment of the present utility model;

[0023] Figure 5 Schematic cross-sectional view according to an embodiment of the present utility model;

[0024] Figure 6 Top view of the overall structure according to an embodiment of the present utility model;

[0025] Figure 7 Schematic diagram of the positional relationship between a placement groove and a camera module according to an embodiment of the present utility model.

[0026] Description of reference numerals:

[0027] 1 - Substrate; 11 - Placement groove; 12 - Carrying platform; 13 - Sliding groove; 14 - Positioning table; 141 - Clearance groove; 142 - Base; 143 - Adsorption table; 15 - Positioning groove; 16 - Adsorption hole; 2 - Clamping member; 21 - Clamping arm; 31 - Guide post; 32 - Elastic member; 33 - Limiting member; 331 - Extension part; 332 - Moving part; 34 - Limiting piece; 4 - Voice coil motor; 5 - Flexible circuit board. Detailed implementation manners

[0028] The following describes the present application based on embodiments, but the present application is not limited to these embodiments. In the following detailed description of the present application, some specific details are described in detail. Those skilled in the art can fully understand the present application without the description of these details. In order to avoid obscuring the essence of the present application, well-known methods, processes, procedures, elements, and circuits are not described in detail.

[0029] In addition, those of ordinary skill in the art should understand that the drawings provided herein are all for illustrative purposes and are not necessarily drawn to scale.

[0030] Unless otherwise clearly defined and limited, the terms "installation", "connection", "attachment", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] For ease of description, spatially relative terms such as "inner", "outer", "below", "beneath", "lower", "above", "upper", etc. are used herein to describe the relationship of one element or feature illustrated in the figures with another element or feature. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, an element described as "below" or "beneath" another element or feature will then be positioned "above" that other element or feature. Thus, the exemplary term "below" can encompass both the orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0032] Unless the context clearly requires otherwise, the words such as "including", "comprising", etc. throughout the application document shall be interpreted in an inclusive sense rather than an exclusive or exhaustive sense; that is, it is the meaning of "including but not limited to".

[0033] In the description of this application, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, in the description of this application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0034] The camera module to which the shielding cover is to be installed includes a voice coil motor and a flexible circuit board connected to the side of the voice coil motor. Connection contacts and other electronic structures are provided on the flexible circuit board for achieving electrical connection in subsequent processes. For facilitating automated operations and ensuring process accuracy, the camera module needs to be placed on a camera module fixture and positioned and fixed. A suction nozzle is used to move the camera assembly. For example, four local suction nozzles are provided on the voice coil motor and two local suction nozzles are provided on the flexible circuit board to move the camera assembly as a whole.

[0035] When placing a camera module, the camera module is usually positioned by using a positioning voice coil motor. However, when positioning the voice coil motor, due to the flexible characteristics of the flexible circuit board, the flexible circuit board will shift and warp after being driven, affecting the flatness. The connection contacts and other electronic structures provided on the flexible circuit board will also shift due to the deformation of the flexible circuit board and it is difficult to follow the voice coil motor for positioning. At the same time, the shift of the connection contact position will affect the subsequent structure mounting and process. Therefore, it is necessary to position the flexible circuit board first to control the processing accuracy and improve the yield.

[0036] Figure 7 It is a schematic diagram of the positional relationship between a placement groove and a camera module according to an embodiment of the present application. Refer to Figure 1 、 Figure 2 、 Figure 6 and Figure 7 The camera module fixture of the embodiment of the present utility model includes a substrate 1, at least one set of clamping components, and at least one limiting member 33. Among them, the substrate 1 is used to place the camera module to be processed. The clamping components slide on the substrate 1 to limit the voice coil motor of the camera module. The limiting member 33 is arranged on the substrate 1 and is used to position the flexible circuit board of the camera module. The camera module fixture positions the camera module placed in the substrate 1 through the clamping components and the limiting member 33, improves the processing accuracy, and further improves the product yield.

[0037] At least one placement groove 11 is provided on the substrate 1. According to the actual situation, multiple placement grooves 11 can be provided on the substrate 1 to accommodate more camera modules, as shown in Figure 6 . Refer to Figure 1 、 Figure 2 、 Figure 7 The number of the clamping components and the limiting member 33 increases or decreases following the number of the placement grooves 11, so that for each placement groove 11, there is a set of clamping components and a limiting member 33 to position the camera module. According to the actual situation and the shape of the flexible circuit board, the number of the limiting members 33 can be adjusted to one, two or more to achieve better positioning. A bearing platform 12 and a positioning platform 14 are arranged in each placement groove 11. The bearing platform 12 is used to place and carry the voice coil of the motor, and the positioning platform 14 is used to position and carry the flexible circuit board. Among them, the bearing platform 12 is arranged in imitation of the voice coil motor, and the positioning platform 14 is arranged in imitation of the flexible circuit board, so as to facilitate more precise position adjustment of the camera module. According to the actual situation, through holes can be opened on the bearing platform 12 and inside the substrate 1 and connected to an external air pump, a vacuum pumping device, etc. for adsorption, or adsorption can be carried out by means of magnetic attraction, etc. to position and fix the voice coil motor and improve the processing accuracy and product yield.

[0038] Figure 5 isFigure 2 The structure is a cross-sectional view along the AA direction. The carrying platform 12 and the positioning platform 14 divide the placement groove 11 into a positioning groove 15 and two oppositely arranged sliding grooves 13, as shown in FIG. Figure 5 、 Figure 7 As shown, two sliding grooves 13 are positioned opposite each other on either side of the support platform 12. Depending on the actual situation, the two sliding grooves 13 can be positioned opposite each other for better positioning. The sliding grooves 13 accommodate the clamping assembly, which slides within the sliding grooves 13 to position the voice coil motor, improving processing accuracy and product yield.

[0039] Reference Figure 1 、 Figure 2 、 Figure 7 , the positioning platform 14 is protruding from one side of the carrying platform 12, and is used to place the flexible circuit board and position it. The positioning platform 14 is provided with an adsorption hole 16. According to actual conditions, the adsorption hole 16 can be connected to an external air pump, a vacuum device, etc. through a channel in the substrate 1, so that the adsorption hole 16 can adsorb and position the flexible circuit board to improve processing accuracy and product yield. Since the flexible circuit board has connection contacts and other electronic structures, there are local height differences on its surface. When adsorption is performed, the height difference between different parts will cause gaps to appear between the flexible circuit board 5 and the surface of the positioning platform 14 and the adsorption hole 16, resulting in vacuum leakage, which affects the adsorption effect. In order to avoid the influence of vacuum leakage on the positioning of the flexible circuit board 5, according to actual conditions, the position of the adsorption hole 16 is adjusted to a structure that avoids the vacuum leakage position to achieve better positioning and improve the processing accuracy and product yield of subsequent processes.

[0040] Reference Figures 3 - 5 、 Figure 7 , the positioning groove 15 is located on the outside of the positioning platform 14. The position of the positioning groove 15 can be determined according to the position of the flexible circuit board in different camera modules in actual conditions. The positioning groove 15 is used to accommodate the limiter 33 and enable it to position the flexible circuit board. An elastic member 32 and a guide column 31 are also provided in the positioning groove 15. The elastic member 32 is located below the moving portion 332 of the limiter 33 and is used to provide elastic force for the movement of the limiter 33. According to actual conditions, the elastic member 32 can be a spring, an elastic ring or other structure. The top of the guide column 31 passes through the elastic member 32 and extends into the moving portion 332 to guide the movement of the limiter 33. In other words, the movement of the limiter 33 is carried out along the guide column 31, avoiding the problem that the moving direction of the limiter 33 is offset and the flexible circuit board cannot be normally limited, thereby improving the processing accuracy.

[0041] Reference Figure 2 、 Figure 7, each set of clamping assemblies includes two clamping members 2, which are respectively slidably arranged in corresponding sliding grooves 13 and are used to limit and fix the motor voice coil. According to the actual situation, the clamping members 2 can be made to slide along the sliding grooves 13 by connecting moving structures such as cylinders and push rods. After connecting the external moving structure, each set of clamping assemblies can move towards the bearing platform 12 and fix the voice coil motor of the camera module on the bearing platform 12, while completing the positioning of the voice coil motor. Each clamping member 2 has two clamping arms 21 arranged vertically, and the two clamping arms 21 respectively extend along the side direction of the bearing platform 12. According to the actual situation, when the clamping member 2 moves to the end of the sliding groove 13 close to the bearing platform 12, the two clamping arms 21 are respectively parallel to the edge of the bearing platform 12 and are close to the edge of the bearing platform 12, so that the voice coil motor is limited and fixed in the bearing platform 12.

[0042] Refer to Figures 2 - 4 , Figure 7 , the limiting member 33 is movably arranged longitudinally on the positioning table 14 and is used to limit the flexible circuit board. The limiting member 33 includes a moving part 332 and two extending parts 331 arranged on the same side of the moving part 332, and the two extending parts 331 are arranged oppositely. According to the actual situation, the two extending parts 331 can be designed to be bent towards the opposite side and together with the moving part 332 form a C-shaped structure, or fillets can be provided inside the two extending parts 331 to better accommodate the flexible circuit board. A limiting groove for fixing the flexible circuit board is formed between the two extending parts 331, the moving part 332 and the top surface of the positioning table 14. According to the actual situation, the shape of the limiting groove is set to be similar to the shape of the flexible circuit board to better accommodate the flexible circuit board 5, achieve effective positioning, and improve the subsequent processing accuracy and product yield.

[0043] Refer to Figure 3 , Figure 4 , Figure 7, the positioning table 14 includes a base 142 and a suction table 143, and the top surface position of the limiting member 33 is higher than the top surface position of the positioning table 14. Among them, the suction table 143 is arranged on the top of the base 142, and the size of the suction table 143 is smaller than that of the base 142, and its outer contour is consistent with the contour of the limiting groove. For the limiting member 33, its two extending portions 331 are located in the upper part of the base 142 and are respectively arranged on both sides of the suction table 143 along the length direction. That is to say, the two extending portions 331 of the limiting member 33 form an enclosure for the suction table 143. At the same time, the limiting member 33 can also slide in the positioning groove 15 along the height direction of the suction table 143. The base 142 forms a step with the suction table 143 on both sides in the length direction of the suction table 143. That is to say, the base 142 can limit the movement of the limiting member 33. When the limiting member 33 moves down until its lower surface contacts the upper surface of the base 142, the limiting member 33 cannot continue to move down, avoiding excessive downward movement of the limiting member 33 to compress the elastic member 32, so that the elastic rebound force of the elastic member 32 is too large and affects the flexible circuit board.

[0044] Referring to Figures 3 - 5 and Figure 7 , when using a suction nozzle to place the camera module, since a plurality of local suction nozzles are provided on the voice coil motor 4 and the flexible circuit board 5, when the suction nozzle presses down, the outside of the suction nozzle first contacts the limiting member 33 higher than the top surface of the positioning table 14. As the suction nozzle continues to press down, the limiting member 33 is pressed and moves down, and its top surface is in the same plane as the top surface of the positioning table 14. At this time, the flexible circuit board 5 contacts the top surface of the positioning table 14. Then, the suction nozzle is lifted to separate the flexible circuit board 5 from the suction nozzle, and the limiting member 33 rebounds elastically provided by the elastic member 32. At this time, the top surface of the limiting member 33 is higher than the top surface of the positioning table 14 again. The limiting groove formed by it, the lower top surface of the suction nozzle, and the end of the voice coil motor 4 connected to the flexible circuit board 5 jointly limit the flexible circuit board 5, so that the flexible circuit board 5 is positioned to the target position, that is, the limiting groove. The flexible circuit board 5 is adsorbed through the adsorption hole 16. At this time, the suction nozzle can be completely removed, and finally the positioning of the flexible circuit board 5 is completed. After the positioning of the flexible circuit board 5 is completed, the clamping assembly is used to position the voice coil motor 4, and finally the overall positioning of the camera module is realized, improving the processing accuracy and product yield.

[0045] Such as Figure 2 , Figure 3 , Figure 7 , in some embodiments, an avoidance groove 141 is provided on the positioning table 14 for avoiding electronic structures such as contacts on the flexible circuit board. Since operations such as extrusion and adsorption will occur when positioning the flexible circuit board, it is necessary to avoid the electronic structures of the flexible circuit board to prevent them from being damaged, thus affecting subsequent processing and product yield.

[0046] In some embodiments, such as Figure 2, the camera module fixture further includes a limiting piece 34. The limiting piece 34 is located above the moving part 332 and limits the moving part 332. When the moving part 332 is pushed upward by the elastic force of the elastic member 32, the limiting piece 34 blocks the moving part 332 to prevent it from flying out of the positioning groove 15. The edge of the limiting piece 34 is connected to the substrate 1, fixing its position and not being affected by structures such as the limiting member 33. According to the actual situation, the limiting piece 34 can be fixed by structures such as bolts, so that the limiting piece 34 can effectively limit the moving part 332 and prevent the camera module from being damaged during positioning.

[0047] The embodiment of the present application provides a camera module fixture. The camera module fixture includes a substrate, at least one set of clamping components and at least one limiting member. The substrate is provided with at least one placement groove, and each placement groove is provided with a bearing platform and a positioning table. The limiting member includes a moving part and two oppositely arranged extending parts. A limiting groove is formed between the two extending parts, the moving part and the top surface of the positioning table. Through the limitation of the limiting groove, the positioning of the flexible circuit board is realized, so that its processing accuracy can be controlled within the same tolerance range, meeting the accuracy requirements in subsequent processes and improving the yield.

[0048] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various modifications and changes can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A camera module fixture, characterized in that, The fixture includes: A substrate (1) provided with at least one placement groove (11). Each placement groove (11) is provided with a bearing platform (12) and a positioning platform (14). The positioning platform (14) protrudes from one side of the bearing platform (12). An adsorption hole (16) is formed on the positioning platform (14). The bearing platform (12) and the positioning platform (14) divide the placement groove (11) into a positioning groove (15) and two oppositely arranged sliding grooves (13). The two sliding grooves (13) are oppositely arranged on both sides of the bearing platform (12). The positioning groove (15) is located outside the positioning platform (14); At least one set of clamping components. Each set of clamping components includes two clamping members (2) respectively slidably arranged in the corresponding sliding grooves (13). Each set of clamping components moves towards the bearing platform (12) to fix the voice coil motor (4) of the camera module on the bearing platform (12); At least one limiting member (33) movably arranged longitudinally on the positioning platform (14). The limiting member (33) includes a moving part (332) and two extending parts (331) arranged on the same side of the moving part (332). The two extending parts (331) are oppositely arranged. A limiting groove for fixing the flexible circuit board (5) of the camera module is formed between the two extending parts (331), the moving part (332) and the top surface of the positioning platform (14).

2. The jig according to claim 1, characterized in that, The top surface position of the limiting member (33) is higher than the top surface position of the positioning platform (14).

3. The jig according to claim 1, characterized in that, An elastic member (32) is further arranged in the positioning groove (15). The elastic member (32) is located below the moving part (332).

4. The jig according to claim 1, wherein The positioning platform (14) includes a base platform (142) and an adsorption platform (143). The adsorption platform (143) is arranged on the top of the base platform (142), and its outer contour is consistent with the contour of the limiting groove. The base platform (142) forms a stepped shape with the adsorption platform (143) on both sides in the length direction of the adsorption platform (143).

5. The jig according to claim 4, wherein The two extending parts (331) are located in the upper part of the base platform (142) and are respectively arranged on both sides of the adsorption platform (143) in the length direction. The limiting member (33) slides in the positioning groove (15) along the height direction of the adsorption platform (143).

6. The jig according to claim 1, wherein The fixture further includes a limiting piece (34) connected to the substrate (1). The limiting piece (34) is located above the moving part (332) to limit the moving part (332).

7. The jig according to claim 1, characterized in that, An avoidance groove (141) is formed on the positioning platform (14).

8. The jig according to claim 3, characterized in that, A guiding post (31) is further arranged in the positioning groove (15). The top end of the guiding post (31) penetrates through the elastic member (32) and extends into the moving part (332) to guide the movement of the limiting member (33).

9. The jig according to claim 1, wherein, The bearing platform (12) is arranged in imitation of the voice coil motor (4), and the positioning platform (14) is arranged in imitation of the flexible circuit board (5).

10. The jig according to claim 1, characterized in that, Each of the clamping members (2) has two vertically arranged clamping arms (21), and the two clamping arms (21) respectively extend along the side direction of the bearing platform (12).

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