An assembly jig and multi-lens camera

Abstract

The application relates to an assembling jig and a multi-lens camera, which comprises a platform assembly, a pre-ejecting assembly and a clasp spring assembly; the platform assembly is used for abutting against an upper shell of the multi-lens camera; the pre-ejecting assembly is installed on the platform assembly and is used for pre-ejecting the lens module to be inserted into the upper shell; the clasp spring assembly comprises a movable mode slidably installed on the platform assembly and a plurality of elastic pieces fixedly connected to the movable mode and used for being inserted between the upper shell and a first ring body of the lens module; the elastic piece has a first abutting part used for abutting against the first ring body upward and a second abutting part located below the first abutting part and used for abutting against the upper shell downward. The lens module and the upper shell are pressed tightly by the extrusion of the elastic piece in the clasp spring assembly, and the lens module and the upper shell are not easily deviated in the subsequent laser welding process, so that the assembling precision is ensured.

Description

Technical Field

[0001] This utility model relates to the field of vehicle-mounted product technology, and in particular to an assembly fixture and a multi-view camera. Background Technology

[0002] Existing multi-camera systems require connecting the lens module to the upper housing during assembly. This connection is typically achieved using either threaded fastening or adhesive filling. The former necessitates pre-drilling threaded holes in both components, requiring the sequential installation of multiple lens modules. This method is inefficient, the threaded structure encroaches on the camera's internal space, and due to structural tolerances, assembly precision is low, leading to issues like lens module tilting or loosening. The latter method, where adhesive deformation during curing also affects assembly precision. While laser welding can achieve a connection with higher overall structural strength, the melting action at the lens module and upper housing connection point introduces a risk of misalignment, which is uncontrollable and unpredictable. Utility Model Content

[0003] Given the problem of insufficient assembly precision between the lens module and the upper housing in the assembly process of existing multi-camera systems, it is necessary to provide an assembly fixture and a multi-camera system.

[0004] According to one aspect of this application, an assembly fixture is provided for assembling an upper housing and multiple lens modules of a multi-view camera, comprising: a platform assembly, a pre-mounting assembly, and a retaining spring assembly; wherein, the platform assembly is used to abut against the upper housing; the pre-mounting assembly is mounted on the platform assembly and is used to pre-mount the lens modules for insertion into the upper housing; the retaining spring assembly includes a movable mold slidably mounted on the platform assembly and multiple spring pieces fixedly connected to the movable mold and used to insert between the upper housing and the first ring body of the lens modules, the spring pieces having a first abutting portion for abutting upward against the first ring body and a second abutting portion located below the first abutting portion for abutting downward against the upper housing.

[0005] With this configuration, after the lens module is inserted into the upper housing, the two abutting parts of the spring plate apply pressure to the lens module and the upper housing, which can firmly press the lens module against the inner wall of the upper housing, so that a stable abutting state is formed between the lens module and the upper housing. In the subsequent laser welding process, it can overcome the "pulling" effect of the welding area on the lens module, avoid the lens module tilting or deviating relative to the upper housing, and ensure assembly accuracy.

[0006] In one embodiment, to further improve assembly accuracy, the spring includes a connecting plate fixedly connected to the movable module and a pair of locking teeth spaced apart on the connecting plate; the distance between the two locking teeth is greater than the outer diameter of the lens module barrel.

[0007] With this configuration, the two locking teeth abut against the first ring body from both sides of the lens barrel, resulting in balanced force on the lens module and minimal offset, which helps improve assembly accuracy.

[0008] In one embodiment, the snap-fit ​​teeth include a first extension, a bent section, and a second extension that extend sequentially from the connecting plate. The bent section protrudes upward from the first extension and the second extension to form the first abutment portion. The first extension and / or the second extension is used to abut downward against the upper housing and form the second abutment portion.

[0009] With this configuration, the bent section and the two extended sections form a triangular structure as the three fulcrums of the locking teeth, resulting in a stable force system and ensuring stable support between the lens module and the upper housing.

[0010] In one embodiment, the first extension has a first plane for abutting against the upper housing, and the second extension has a second plane for abutting against the upper housing; the first plane and the second plane are arranged coplanarly.

[0011] This design, with its surface-fitting method, further enhances the stability of the connection between the lens module and the upper housing.

[0012] In one embodiment, the pre-top assembly includes a pre-top base fixedly connected to the platform assembly, a floating top movably mounted vertically on the pre-top base, and a first reset spring connected to the pre-top base and the floating top, the floating top being used to abut against the lens module.

[0013] With this configuration, under the action of the first return spring, the floating top applies an active thrust to the lens module. On the one hand, it can form a pre-tightening force between the lens module and the upper housing. On the other hand, it can compensate for the structural tolerances of the lens module itself during production, ensuring contact between the lens module and the upper housing. It also ensures that the slot formed between the first ring on the outer side of the lens barrel and the surface of the upper housing has sufficient spacing, facilitating the subsequent insertion of the spring.

[0014] In one embodiment, the platform assembly includes a platform base and a guide bracket mounted on the platform base; the platform base has a first bearing area corresponding to the upper housing and a plurality of second bearing areas sequentially corresponding to the plurality of lens modules; the guide bracket is mounted on the platform base and has a plurality of first guide ends and a plurality of second guide ends, the plurality of first guide ends being arranged around the first bearing area to form a first receiving groove in the first bearing area for accommodating the upper housing, and the plurality of second guide ends being arranged around the second bearing area to form a second receiving groove in the second bearing area for accommodating the lens modules.

[0015] With this configuration, the two receiving slots correspond to the lens module and the upper housing respectively, providing guidance for placing the lens module and the upper housing on the platform assembly, so that the lens module corresponds to the lens mounting hole on the upper housing, and the lens barrel can smoothly extend upward through the lens mounting hole.

[0016] In one embodiment, the guide bracket is vertically movably mounted to the platform assembly, and at least one second guide end has an abutment surface extending beyond the first bearing area for abutting the upper housing.

[0017] With this configuration, the second guide end can still contact the upper housing vertically. After assembly, the assembled lens module and upper housing can be easily pushed out of the assembly fixture by lifting the guide bracket.

[0018] In one embodiment, the guide bracket includes a synchronization plate disposed below the platform base, a first guide post fixedly connected to the synchronization plate and providing a first guide end, and a second guide post fixedly connected to the synchronization plate and providing a second guide end; the assembly fixture also includes an adapter fixedly connected to the platform base and located below the synchronization plate, and a second return spring with its two ends respectively abutting against the synchronization plate and the adapter.

[0019] This design, with the help of the second reset spring, allows the assembled camera semi-finished product to be automatically ejected, which helps improve assembly efficiency.

[0020] In one embodiment, the platform assembly further includes a spring pin mounted on the platform base for abutting the side of the synchronization plate away from the adapter base.

[0021] With this setup, the spring pin can temporarily hold the synchronization plate in place, fixing the position of the upper housing and eliminating the need for manual pressing to keep it stationary. After assembly, releasing the spring pin releases the guide bracket, automatically pushing out the semi-finished camera, simplifying manual assembly.

[0022] In one embodiment, the platform component also has a positioning hole located in the second bearing area, the positioning hole being used to accommodate the power socket of the lens module; the size of the second receiving slot is larger than the size of the circuit board in the lens module.

[0023] This design allows the lens module to be positioned using the positioning holes when placed on the assembly fixture, further simplifying the assembly process.

[0024] According to another aspect of this application, this application also provides a multi-view camera, including: a housing, multiple lens modules, and multiple spring contacts; wherein, the housing has multiple lens mounting holes; the lens modules include a photosensitive component, a lens barrel disposed in the photosensitive path of the photosensitive component, and a lens group installed in the lens barrel, the lens barrel includes a barrel body passing through the lens mounting holes and a first ring body, a second ring body, and a third ring body arranged sequentially along the axial direction of the barrel body, the second ring body being welded to the housing, and the third ring body abutting against the inner wall of the housing; the two ends of the spring contacts abut against the first ring body and the housing respectively along the axial direction of the barrel body; the multi-view camera satisfies: d1≤d2≤d0<d3, where d0 is the inner diameter of the lens mounting holes, d1 is the outer diameter of the first ring body, d2 is the outer diameter of the second ring body, and d3 is the outer diameter of the third ring body.

[0025] This design uses the squeezing action of the spring sheet to pre-tighten the lens module and the upper housing. Whether the assembly is done by glue or laser welding, this pre-tightening action can overcome deformation during the assembly process, thereby improving assembly accuracy.

[0026] In one embodiment, the side of the second ring body facing the first ring body is flush with the outer wall of the outer casing.

[0027] With this configuration, during the laser welding process, the edge of the second ring is more likely to melt and fill the gap between the second ring and the inner wall of the lens mounting hole, thus forming a stable weld.

[0028] In one embodiment, the photosensitive component has a roll adjustment hole; the housing includes an upper housing, a lower housing covering the upper housing, and a roll adjustment post extending from the upper housing to the lower housing, the end of the adjustment post near the lower housing being tapered and inserted into the roll adjustment hole.

[0029] With this configuration, during the assembly of the upper housing with multiple lens modules, the roll angle of the lens modules can be corrected by the cooperation of the roll adjustment hole and the roll adjustment column with a tapered head, thereby improving the assembly accuracy. Attached Figure Description

[0030] Figure 1 This application provides a schematic diagram of the structure of a multi-view camera and an assembly fixture in one embodiment.

[0031] Figure 2 A schematic diagram of the assembled structure of the lens module, upper housing, and spring clip of a multi-view camera in one embodiment provided in this application;

[0032] Figure 3 for Figure 2 A schematic diagram of the lens module in the multi-view camera shown;

[0033] Figure 4 for Figure 2 The diagram shows the structure of the upper housing in the multi-view camera from a first-view perspective.

[0034] Figure 5 for Figure 4 The diagram shown is a structural schematic of the upper shell from a second perspective.

[0035] Figure 6 This is a schematic diagram of the assembly fixture in one embodiment provided in this application;

[0036] Figure 7 for Figure 6 A schematic diagram of the snap ring assembly in the assembly fixture shown;

[0037] Figure 8 for Figure 6 The diagram shows the structure of the platform base and the fixed mold in the assembly fixture.

[0038] Figure 9 for Figure 6 A schematic diagram of the guide bracket in the assembly fixture shown;

[0039] Figure 10 for Figure 6 The diagram shows the structure of the adapter in the assembly fixture.

[0040] Figure 11 for Figure 6 A schematic diagram of the spring pin structure in the assembly fixture shown;

[0041] Figure 12 for Figure 1 A schematic diagram of the planar structure of the multi-view camera, platform components, and pre-top components in the structure shown;

[0042] Figure 13 for Figure 12 The structure shown is a cross-sectional view along the AA direction.

[0043] Figure label:

[0044] 10. Platform component; 11. Platform base; 1101. First bearing area; 1102. Second bearing area; 1103. Opening slot; 1104. Positioning hole; 1105. Positioning protrusion; 1106. First guide hole; 1107. Second guide hole; 12. Guide bracket; 121. Synchronization plate; 12101. Limiting hole; 12102. Track hole; 122. First guide post; 123. Second guide post; 124. First wedge block; 13. Spring pin; 131. Connecting block; 132. Second wedge block; 133. Handle rod; 14. Fixed mold; 141. Slide groove;

[0045] 20. Pre-top assembly; 21. Pre-top base; 22. Floating roof;

[0046] 30. Snap ring assembly; 31. Movable mold; 3101. Protrusion; 3102. Handle hole; 32. Spring piece; 321. Connecting plate; 322. Snap-fit ​​tooth; 3221. First extension section; 3222. Bending section; 3223. Second extension section;

[0047] 40. Adapter assembly; 41. Adapter base; 42. Track post; 43. Limiting post;

[0048] 50. Upper housing; 501. Lens mounting hole; 502. Snap-fit ​​hole; 503. Roll adjustment post; 504. Extension post;

[0049] 60. Lens module; 601. Slot; 61. Photosensitive component; 6101. Roll adjustment hole; 62. Lens barrel; 621. Barrel body; 622. First ring body; 623. Second ring body; 624. Third ring body; 63. Power socket; 64. Weld body. Detailed Implementation

[0050] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0051] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0053] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0054] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0055] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0056] Following 2006, in-vehicle cameras began to develop rapidly, with subsequent development of streaming media cameras, left and right rearview mirror cameras, π-mirror cameras, panoramic module cameras, DMS (Driver Monitor System), OMS (Occupancy Monitoring System), and finally the latest ADAS autonomous driving module cameras. The types and functions of cameras saw significant development in the early 21st century. As technology continues to evolve and iterate, the quality of cameras becomes particularly important for the overall evaluation of a car. By the 2020s, the pace of progress in camera technology will gradually slow down, entering a period of maturity.

[0057] Existing multi-camera systems require the lens module to be connected to the upper housing as a semi-finished product during assembly. The lens module and upper housing are typically fixed using either threaded fastening or adhesive filling. The former requires pre-drilled threaded holes on both, necessitating the sequential installation of multiple lens modules, resulting in low assembly efficiency. The threaded structure also encroaches on the internal space of the camera, and due to structural tolerances, assembly precision is not high. Uneven stress on the housing can also occur when tightening bolts, all of which can lead to lens module tilting or loosening in multi-camera systems. The latter method, where adhesive deformation during curing, also affects assembly precision. Laser welding can also achieve a connection with higher overall structural strength; however, the melting effect at the lens module and upper housing connection point carries the risk of misalignment, which is difficult to control.

[0058] Therefore, it is necessary to provide an assembly fixture and a multi-view camera that can improve the assembly accuracy between the lens module 60 and the upper housing 50 in a multi-view camera.

[0059] like Figures 2 to 5 As shown, according to one embodiment provided in this application, this application provides a multi-view camera, specifically a tri-view camera. For example... Figure 2As shown, the multi-view camera includes a housing, multiple lens modules 60, and multiple spring clips 32. The housing has multiple lens mounting holes 501. Each lens module 60 includes a photosensitive component 61, a lens barrel 62 disposed along the photosensitive path of the photosensitive component 61, and a lens assembly mounted in the lens barrel 62. The lens barrel 62 includes a barrel body 621 passing through the lens mounting holes 501 and a first ring 622, a second ring 623, and a third ring 624 arranged sequentially along the axial direction of the barrel body 621. The second ring body 623 is welded to the outer shell, and the third ring body 624 abuts against the inner wall of the outer shell; the spring piece 32 has a first abutting part that abuts upward against the first ring body 622 and a second abutting part located below the first abutting part and abutting downward against the upper shell 50; the multi-view camera satisfies: d1≤d2≤d0<d3, where d0 is the inner diameter of the lens mounting hole 501, d1 is the outer diameter of the first ring body 622, d2 is the outer diameter of the second ring body 623, and d3 is the outer diameter of the third ring body 624. It is worth noting that before the welding operation is performed between the lens module 60 and the upper housing 50, the spring 32 has already been inserted into the slot 601 formed between the first ring body 622 and the outer surface of the upper housing 50, and applies a compressive force to the first ring body 622 and the upper housing 50, so that there is a stable pre-tightening force between the lens module 60 and the upper housing 50. This pre-tightening force is sufficient to overcome the pulling effect of the weld seam on the lens module 60 during the welding process, thereby ensuring that the position between the lens module 60 and the upper housing 50 is consistent before and after welding, and improving the assembly accuracy of the multi-view camera.

[0060] like Figure 2 and Figure 3 As shown, the side of the second ring 623 facing the first ring 622 is flush with the outer wall of the housing. During laser welding, the edge of the second ring 623 melts more easily and fills the gap between the second ring 623 and the inner wall of the lens mounting hole 501, thus forming a stable weld. To illustrate the welding relationship more clearly, Figure 3 The weld body 64 shown is in Figure 2 The corresponding position protrudes upward from the surface of the upper shell 50, and the two weld bodies 64 are symmetrically arranged on both sides of the lens barrel 62, which helps to balance the welding stress distribution on the stressed lens barrel 62.

[0061] like Figure 3 and Figure 5As shown, the photosensitive component 61 has a roll adjustment hole 6101; the housing includes an upper housing 50, a lower housing covering the upper housing 50, and a roll adjustment post 503 extending from the upper housing 50 to the lower housing. The end of the adjustment post near the lower housing is tapered and inserted into the roll adjustment hole 6101. During the assembly of the upper housing 50 with multiple lens modules 60, the roll angle of the lens modules 60 can be corrected by the cooperation of the roll adjustment hole 6101 and the roll adjustment post 503 with the tapered head, thereby improving the assembly accuracy. Furthermore, considering the structural tolerances of the upper housing 50, the roll adjustment hole 6101 in this embodiment is an oblong hole and extends radially along the lower cylindrical power socket 63.

[0062] This application also provides an assembly fixture, which also includes a spring clip 32. The spring clip 32 provides preload force during the assembly step of assembling the lens module 60 and the upper housing 50 into a multi-view camera semi-finished product, facilitating subsequent laser welding. It is understood that the multi-view camera semi-finished product assembled by this assembly fixture does not include the spring clip 32.

[0063] Please refer to the following: Figure 1 , Figure 6 and Figure 7 Specifically, the assembly fixture provided in this application includes a platform assembly 10, a pre-lifting assembly 20, and a retaining spring assembly 30; wherein, the platform assembly 10 is used to abut against the upper housing 50; the pre-lifting assembly 20 is installed on the platform assembly 10 and is used to pre-lift the lens module 60 to insert into the upper housing 50; the retaining spring assembly 30 includes a movable mold 31 slidably installed on the platform assembly 10 and a plurality of spring pieces 32 fixedly connected to the movable mold 31 and used to insert between the upper housing 50 and the first ring body 622 of the lens module 60, the spring pieces 32 having a first abutting portion for abutting upward against the first ring body 622 and a second abutting portion located below the first abutting portion for abutting downward against the upper housing 50. In this way, after the lens module 60 is inserted into the upper housing 50, the two abutting parts of the spring 32 apply pressure to the lens module 60 and the upper housing 50, which can firmly press the lens module 60 against the inner wall of the upper housing 50, so that a stable abutting state is formed between the lens module 60 and the upper housing 50. In the subsequent laser welding process, the "pulling" effect of the welding area on the lens module 60 can be overcome, and the lens module 60 is prevented from tilting or deviating relative to the upper housing 50, thus ensuring the assembly accuracy.

[0064] like Figure 6As shown, specifically, the spring piece 32 includes a connecting plate 321 fixedly connected to the movable mold 31 and a pair of locking teeth 322 spaced apart on the connecting plate 321; the distance between the two locking teeth 322 is greater than the outer diameter of the barrel 621 of the lens module 60, that is, the spring piece 32 has a U-shaped structure, and the two locking teeth 322 respectively abut against the first ring body 622 from both sides of the lens barrel 62, so that the lens module 60 is subjected to balanced force and has a small offset, which is beneficial to improving assembly accuracy. Furthermore, the locking teeth 322 are composed of three parts that extend in sequence: a first extension section 3221, a bent section 3222, and a second extension section 3223. The bent section 3222 protrudes upward from the first extension section 3221 and the second extension section 3223 to form a first abutment portion, and the first extension section 3221 and / or the second extension section 3223 are used to abut downward against the upper housing 50 to form a second abutment portion. The bent section 3222 and the two extended sections form a triangular structure as the three fulcrums of the locking teeth 322, ensuring a stable force system and guaranteeing stable support between the lens module 60 and the upper housing 50. Furthermore, the first extended section 3221 has a first plane for abutting against the upper housing 50, and the second extended section 3223 has a second plane for abutting against the upper housing 50; the first and second planes are arranged coplanarly, and this surface-fitting method further enhances the stability of the support between the lens module 60 and the upper housing 50.

[0065] In one embodiment provided in this application, the spring sheet 32 ​​is made of 60Mn spring steel, which forms a "tempered troostite" structure after medium-temperature tempering. Its yield strength is at least 800 MPa, and its elastic limit is between 650 MPa and 750 MPa. The spring sheet 32 ​​thus produced has high elastic limit and yield strength, and hardly undergoes plastic deformation under repeated loading, meeting the requirement of providing stable preload force for the spring sheet 32 ​​in the assembly fixture of this application. After surface treatment (such as shot peening or phosphating), the spring sheet 32 ​​exhibits good fatigue performance, with a fatigue limit (symmetrical cycle) reaching 350 MPa to 400 MPa, suitable for medium loads and medium to low cycle counts (10... 5 -10 7 The spring 32 is designed for spring applications involving multiple cycles. Further testing showed that the elongation after fracture is ≥9% and the impact energy is ≥30J, which can prevent the spring 32 from "brittle fracture" when subjected to impact or overload. The spring 32 provided in this application also has a reasonable hardness matching. The hardness of the spring 32 meets the hardness range of (HRC38-45), taking into account both "wear resistance" (avoiding wear from contact between the spring and other parts) and "machinability" (allowing for subsequent processing such as drilling and grinding).

[0066] It is understood that in other embodiments, the snap-fit ​​tooth 322 also includes a guide section extending upwardly from the second extension section 3223. Providing a guide section at the end of the snap-fit ​​tooth 322 can make the snap-fit ​​tooth 322 more securely abut against the upper housing 50 and reduce debris generated by scratches.

[0067] like Figure 6 As shown, optionally, the bent segment 3222 is arc-shaped and the bent segment 3222 transitions smoothly with the first extension segment 3221 and the second extension segment 3223 on both sides.

[0068] Please refer to the following: Figure 7 and Figure 8 The assembly fixture also includes a fixed mold 14 fixedly mounted on the side of the platform base 11. The fixed mold 14 has two opposing grooves 141, and the movable mold 31 has protrusions 3101 installed in the grooves 141 on both sides. A guide ramp is also provided at the entrance of the groove 141 to facilitate the insertion of the protrusions 3101. Figure 7 As shown, the movable module 31 also has a handle hole 3102 for easy push-pull operation.

[0069] like Figure 6 , Figure 12 and Figure 13 As shown, the pre-top assembly 20 includes a pre-top seat 21 fixedly connected to the platform assembly 10, a floating top 22 vertically movably mounted on the pre-top seat 21, and a first return spring (not shown) connecting the pre-top seat 21 and the floating top 22. The floating top 22 is used to abut against the lens module 60. Under the abutment of the first return spring, the floating top 22 applies an active thrust to the lens module 60. On the one hand, it can form a pre-tightening force between the lens module 60 and the upper housing 50. On the other hand, it can compensate for the structural tolerances of the lens module 60 itself during production, ensuring contact between the lens module 60 and the upper housing 50. It also ensures that the slot 601 formed between the first ring 622 on the outer side of the lens barrel 62 and the surface of the upper housing 50 has sufficient spacing to facilitate the subsequent insertion of the spring 32.

[0070] To improve assembly efficiency, the platform component 10 in the assembly fixture provided in this application specifically includes a platform base 11 and a guide bracket 12. Please refer to the following: Figure 1 , Figure 6 , Figure 8 and Figure 9 ,like Figure 8As shown, the platform base 11 has a first bearing area 1101 corresponding to the upper housing 50 and a plurality of second bearing areas 1102 sequentially corresponding to the plurality of lens modules 60; the guide bracket 12 is mounted on the platform base 11 and has a plurality of first guide ends and a plurality of second guide ends. The plurality of first guide ends are arranged around the first bearing area 1101 to form a first receiving groove for accommodating the upper housing 50 in the first bearing area 1101, and the plurality of second guide ends are arranged around the second bearing area 1102 to form a second receiving groove for accommodating the lens module 60 in the second bearing area 1102. The two types of receiving grooves correspond to the lens module 60 and the upper housing 50, respectively, providing guidance for placing the lens module 60 and the upper housing 50 on the platform assembly 10, so that the lens module 60 corresponds to the lens mounting hole 501 on the upper housing 50, and the lens barrel 62 can smoothly extend upward out of the lens mounting hole 501.

[0071] Furthermore, to facilitate the removal of the assembled multi-camera semi-finished product, the guide bracket 12 is vertically and movably mounted on the platform assembly 10. At least one second guide end has an abutment surface extending beyond the first bearing area 1101, which abuts against the upper housing 50. With this configuration, the second guide end can also contact the upper housing 50 vertically. After assembly, the assembled lens module 60 and upper housing 50 can be easily ejected from the assembly fixture by lifting the guide bracket 12.

[0072] To achieve automatic pop-up of the multi-camera semi-finished product, the guide bracket 12 includes a synchronization plate 121 located below the platform base 11, a first guide post 122 fixedly connected to the synchronization plate 121 and providing a first guide end, and a second guide post 123 fixedly connected to the synchronization plate 121 and providing a second guide end; such as Figure 6 and Figure 10 As shown, the assembly fixture also includes an adapter 41 fixedly connected to the platform base 11 and located below the synchronization plate 121, and a second return spring (not shown) whose two ends respectively abut against the synchronization plate 121 and the adapter 41. For details, please refer to... Figure 8 and Figure 9 In this embodiment, the platform base 11 has a first guide hole 1106 and a second guide hole 1107. The first guide post 122 of the guide bracket 12 passes through the first guide hole 1106, and the second guide post 123 of the guide bracket 12 passes through the second guide hole 1107. That is, the platform base 11 itself serves as the sliding track of the guide bracket 12. It is worth noting that the platform base 11 has an opening slot 1103 for accommodating the synchronization plate 121, and the adapter seat 41 covers the slot below the platform base 11.

[0073] To further simplify operation, the platform assembly 10 also includes a spring pin 13 mounted on the platform base 11. The spring pin 13 is used to abut against the side of the synchronization plate 121 away from the adapter base 41. Specifically, as shown... Figure 9 and Figure 11 As shown, the guide also includes a pair of first wedge blocks 124 fixed at both ends of the synchronization plate 121. The spring pin 13 is specifically composed of a connecting block 131, a second wedge block 132, and a handle rod 133. The connecting block 131 is fixedly connected to the platform base 11 and provides a track for the handle rod 133 to slide. The second wedge block 132 is fixed to the end of the handle rod 133 and abuts against the first wedge block 124 in a vertical fit. When the guide bracket 12 is pressed, the inclined surfaces of the two wedge blocks contact and misalign. When it falls a certain distance, the spring pin 13 can temporarily hold the synchronization plate 121. At this time, the position of the upper housing 50 is fixed, and there is no need for manual pressing to keep the upper housing 50 stationary. After subsequent assembly, releasing the spring pin 13 can release the guide bracket 12, thereby automatically pushing out the camera semi-finished product, simplifying the manual assembly operation.

[0074] like Figure 4 As shown, optionally, the upper housing 50 is further provided with two extension posts 504 on its upper side. The assembly fixture is also equipped with a clamping block (not shown in the figure) that engages with the extension posts 504. It is understood that the clamping block has an extension hole that engages with the extension post 504. The top of the extension post 504 is also tapered to guide the extension post 504 smoothly into the extension hole. Optionally, the inner side of the upper housing 50 is also provided with a snap-fit ​​hole 502, further referenced... Figure 6 The platform base 11 is also provided with a positioning protrusion 1105. When the upper housing 50 is placed in the first bearing area 1101, the snap-fit ​​hole 502 of the upper housing 50 engages with the positioning protrusion 1105 to keep the upper housing 50 in a fixed position during the assembly process.

[0075] Furthermore, to increase the installation accuracy of the lens module 60, the platform assembly 10 also has a positioning hole 1104 located in the second bearing area 1102. The positioning hole 1104 is used to accommodate the power socket 63 of the lens module 60; the size of the second receiving slot is larger than the size of the circuit board in the lens module 60. In this way, when the lens module 60 is placed on the assembly fixture, it can be positioned with the help of the positioning hole 1104, further simplifying the assembly process.

[0076] Please refer to the following: Figure 9 and Figure 10 To make the guide bracket 12 slide more smoothly, the adapter assembly 40 includes an adapter base 41, multiple track posts 42 and multiple limiting posts 43 fixedly connected to the adapter base 41. The track posts 42 are fixedly connected to the platform base 11. The top of the limiting post 43 is provided with an outwardly flared head. The synchronous plate 121 of the guide bracket 12 is provided with a track hole 12102 and a limiting hole 12101 that cooperate with the track post 42. The limiting hole 12101 is also provided with a stop step that cooperates with the outwardly flared head at the top of the limiting post 43.

[0077] For example, based on the structure of the assembly fixture and the multi-view camera described above, the assembly operation process of the multi-view camera provided in this application is as follows:

[0078] First, place multiple lens modules 60 in the second receiving slot of the platform assembly 10, ensuring that the power socket 63 below the lens module 60 is inserted into the positioning hole 1104 of the platform base 11. At this time, the floating top 22 of the pre-top assembly 20 supports the third ring body 624 of the lens barrel 62.

[0079] Then the upper housing 50 is placed in the second receiving slot of the platform assembly 10, at which point the second guide post 123 of the guide bracket 12 contacts the upper housing 50.

[0080] Next, press the upper housing 50 (this step can be achieved with the help of a pressure block (not shown)) until the spring pin 13 locks the fixing plate of the guide bracket 12. In this step, the roll adjustment pin 503 of the upper housing 50 is inserted into the roll adjustment hole 6101 of the lens module 60 to adjust the roll angle of the lens module 60. The snap-fit ​​hole 502 of the upper housing 50 is inserted and engaged with the positioning protrusion 1105 on the platform base 11 to fix the position of the upper housing 50. The upper housing 50 abuts against the third ring 624 of the lens module 60 to form a preliminary pre-tightening force, ensuring that the first ring 622 on all lens barrels 62 fully extends out of the lens mounting hole 501.

[0081] The spring clip assembly 30 is further pushed so that the spring piece 32 is inserted into the slot 601 between the first ring body 622 and the surface of the upper housing 50, so that there is sufficient preload between the lens module 60 and the upper housing 50.

[0082] Finally, laser welding is performed to fix the lens module 60 to the upper housing 50 and form a multi-view camera semi-finished product.

[0083] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0084] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An assembly fixture for assembling the upper housing (50) and multiple lens modules (60) of a multi-view camera, characterized in that, include: Platform component (10) for abutting the upper housing (50); A pre-mounting assembly (20), mounted on the platform assembly (10) and used to pre-mount the lens module (60) for insertion into the upper housing (50); and, The snap ring assembly (30) includes a movable mold (31) slidably mounted on the platform assembly (10) and a plurality of spring pieces (32) fixedly connected to the movable mold (31) and used for insertion between the upper housing (50) and the lens module (60). The spring pieces (32) have a first abutting portion for abutting upward against the first ring body (622) and a second abutting portion located below the first abutting portion for abutting downward against the upper housing (50).

2. The assembly fixture according to claim 1, characterized in that, The spring (32) includes a connecting plate (321) fixedly connected to the movable module (31) and a pair of locking teeth (322) spaced apart on the connecting plate (321); the distance between the two locking teeth (322) is greater than the outer diameter of the barrel (621) of the lens module (60).

3. The assembly fixture according to claim 2, characterized in that, The snap-fit ​​tooth (322) includes a first extension section (3221), a bent section (3222), and a second extension section (3223) extending sequentially from the connecting plate (321). The bent section (3222) protrudes upward from the first extension section (3221) and the second extension section (3223) to form the first abutment portion. The first extension section (3221) and / or the second extension section (3223) are used to abut downward against the upper housing (50) and form the second abutment portion.

4. The assembly fixture according to claim 3, characterized in that, The first extension (3221) has a first plane for abutting against the upper housing (50), and the second extension (3223) has a second plane for abutting against the upper housing (50); the first plane and the second plane are arranged coplanarly.

5. The assembly fixture according to claim 1, characterized in that, The pre-top assembly (20) includes a pre-top seat (21) fixedly connected to the platform assembly (10), a floating top (22) movably mounted on the pre-top seat (21) in the vertical direction, and a first reset spring connected to the pre-top seat (21) and the floating top (22). The floating top (22) is used to abut against the lens module (60).

6. The assembly fixture according to claim 1, characterized in that, The platform assembly (10) includes a platform base (11) and a guide bracket (12) mounted on the platform base (11). The platform base (11) has a first bearing area (1101) corresponding to the upper housing (50) and a plurality of second bearing areas (1102) corresponding to the plurality of lens modules (60) in sequence. The guide bracket (12) is mounted on the platform base (11) and has a plurality of first guide ends and a plurality of second guide ends. The plurality of first guide ends are arranged around the first bearing area (1101) to form a first receiving groove in the first bearing area (1101) for accommodating the upper housing (50). The plurality of second guide ends are arranged around the second bearing area (1102) to form a second receiving groove in the second bearing area (1102) for accommodating the lens module (60).

7. The assembly fixture according to claim 6, characterized in that, The guide bracket (12) is vertically movably mounted on the platform assembly (10), and at least one of the second guide ends has an abutment surface extending beyond the first bearing area (1101) for abutting the upper housing (50).

8. The assembly fixture according to claim 7, characterized in that, The guide bracket (12) includes a synchronization plate (121) disposed below the platform base (11), a first guide post (122) fixedly connected to the synchronization plate (121) and providing the first guide end, and a second guide post (123) fixedly connected to the synchronization plate (121) and providing the second guide end. The assembly fixture also includes an adapter (41) fixedly connected to the platform base (11) and located below the synchronization plate (121), and a second return spring with its two ends respectively abutting against the synchronization plate (121) and the adapter (41).

9. The assembly fixture according to claim 8, characterized in that, The platform assembly (10) also includes a spring pin (13) mounted on the platform base (11), the spring pin (13) being used to abut against the side of the synchronization plate (121) away from the adapter base (41).

10. The assembly fixture according to claim 6, characterized in that, The platform component (10) also has a positioning hole (1104) located in the second bearing area (1102), the positioning hole (1104) is used to accommodate the power socket (63) of the lens module (60); the size of the second receiving slot is larger than the size of the circuit board in the lens module (60).

11. A multi-view camera, characterized in that, include: The housing has multiple lens mounting holes (501). Multiple lens modules (60), each lens module (60) includes a photosensitive component (61), a lens barrel (62) disposed in the photosensitive path of the photosensitive component (61), and a lens group installed in the lens barrel (62). The lens barrel (62) includes a barrel body (621) passing through the lens mounting hole (501) and a first ring body (622), a second ring body (623), and a third ring body (624) spaced apart on the outer periphery of the barrel body (621). The second ring body (623) is welded to the outer shell, and the third ring body (624) abuts against the inner wall of the outer shell. Multiple spring clips (32), each spring clip (32) having a first abutting portion that abuts upward against the first ring body (622) and a second abutting portion located below the first abutting portion and abutting downward against the outer shell; The multi-view camera satisfies: d1≤d2≤d0<d3, where d0 is the inner diameter of the lens mounting hole (501), d1 is the outer diameter of the first ring body (622), d2 is the outer diameter of the second ring body (623), and d3 is the outer diameter of the third ring body (624).

12. The multi-view camera according to claim 11, characterized in that, The side of the second ring (623) facing the first ring (622) is flush with the outer wall of the outer shell.

13. The multi-view camera according to claim 12, characterized in that, The photosensitive component (61) has a roll adjustment hole (6101). The outer casing includes an upper casing (50), a lower casing covering the upper casing (50), and a roll adjustment post (503) extending from the upper casing (50) to the lower casing. The end of the adjustment post near the lower casing is tapered and inserted into the roll adjustment hole (6101).

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