Camera module bonding fixture and camera module bonding equipment

Abstract

The present invention discloses a camera module bonding fixture, comprising a base positioning device, an electrical connection device, a fixture housing, and a base cavity member disposed on the fixture housing; the fixture housing has a cavity therein, the base cavity member is provided with a mounting groove for accommodating a module base of a camera module, and the mounting groove is provided with a clearance hole that connects the cavity with the outside; the base positioning device comprises a cavity pressing block disposed on the fixture housing and a first driving mechanism capable of driving the cavity pressing block to move; the electrical connection device is disposed in the cavity, the electrical connection device comprises a radio frequency pin connector and a second driving mechanism, and the camera module bonding fixture can limit the movement of the module base and can also connect or separate the radio frequency pin connector with the module electrical connector. The present invention also discloses a camera module bonding device, comprising a lens clamp and the above-mentioned camera module bonding fixture.

Description

Technical Field

[0001] The present invention relates to camera module processing, and in particular to a camera module bonding fixture and camera module bonding equipment. Background Art

[0002] Camera modules are important electronic devices for image capture. Smart phones, smart cars, robots and other smart terminals need to use camera modules to complete optical imaging, realize functions such as photography, information capture and analysis, and visual interaction, which has led to a significant increase in the demand for cameras. Figure 3 、 Figure 10 as well as Figure 11 As shown, the camera module 7 generally includes a lens 71 and a module base 72. The module base 72 is provided with a mounting hole 721 for connecting to the lens 71, and the lower part of the module base 72 is provided with a module electrical connector 722. When manufacturing the camera module 7, it is necessary to insert the lens 71 into the mounting hole 721 of the module base 72 and bond the two together. There are a variety of process options for bonding, such as the AA process. AA, whose full name is Active Alignment, is a technology for determining the relative positions of spare parts during assembly. This process can freely adjust the impact of assembly errors, thereby preventing the position of the image taken by the camera module after processing from deviating from the center of the picture and reducing the difference in clarity in each area. Therefore, the use of the AA process during bonding has become the current mainstream development trend. In order to efficiently manufacture camera modules through the AA process, it is necessary to design a camera module bonding fixture that is used in conjunction with the AA process. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a camera module bonding clamp that can limit the movement of the module base, and can also connect or separate the RF pin connector and the module electrical connector to realize the power on or off of the module base; the purpose of the present invention is also to provide a camera module bonding device that can cooperate with the AA device to bond the lens and the module base through the AA process.

[0004] A camera module bonding fixture in the present invention includes a base positioning device, an electrical connection device, a fixture housing, and a base cavity member provided on the fixture housing;

[0005] The fixture housing has a cavity inside, the base cavity is provided with a mounting groove for accommodating a module base of the camera module, and the mounting groove is provided with a through hole for connecting the cavity with the outside;

[0006] The base positioning device includes a cavity pressing block provided on the fixture housing and a first driving mechanism capable of driving the cavity pressing block to move, wherein the cavity pressing block is provided with a base exposed groove; when the first driving mechanism drives the cavity pressing block to move above the mounting groove, a clamping space for fixing the module base is formed between the cavity pressing block and the base cavity part, and the base exposed groove exposes the mounting hole of the module base; when the first driving mechanism drives the cavity pressing block away from the mounting groove, the module base can enter and exit the mounting groove;

[0007] The electrical connection device is arranged in the cavity, and the electrical connection device includes a radio frequency pin connector and a second driving mechanism. The radio frequency pin connector is located directly below the clearance via hole, and the second driving mechanism can drive the radio frequency pin connector to move in the up and down directions so that the radio frequency pin connector is close to or away from the clearance via hole.

[0008] Furthermore, the first driving mechanism includes a first cylinder, a first connecting block and two pressure block connecting seats, the first cylinder is arranged on one side of the fixture shell, the first connecting block is connected to the output shaft of the first cylinder, and the axis of the output shaft of the first cylinder is along the left and right direction; the two pressure block connecting seats are respectively connected to the front and rear sides of the cavity pressure block, and the first connecting block is connected to one of the pressure block connecting seats.

[0009] Furthermore, a guide rail is provided on the front and rear sides of the clamp housing respectively, the length directions of the two guide rails are both along the left and right directions, and the two pressure block connecting seats are respectively slidably connected to the two guide rails.

[0010] Furthermore, anti-fall-out limit pins are provided at both ends of the clamp housing corresponding to the two guide rails.

[0011] Furthermore, the second driving mechanism includes a second cylinder, a flexible floating joint and a connector mounting seat arranged in sequence from bottom to top, the axis of the output shaft of the second cylinder is along the up and down direction, and the RF pin connector is installed on the connector mounting seat.

[0012] Furthermore, a plurality of guide rods are provided on the connector mounting seat, and guide holes are respectively provided on the base cavity component at positions corresponding to the plurality of guide rods, and the axes of the guide rods and the guide holes are both along the up-down direction.

[0013] Furthermore, the second driving mechanism further includes a support plate connected to the lower portion of the second cylinder, and the support plate is connected to the fixture housing.

[0014] Furthermore, it also includes a storage seat for placing the lens of the camera module, the storage seat is connected to the fixture housing, and the storage seat is provided with a socket for inserting the lens.

[0015] Furthermore, the fixture shell includes a shell bottom plate, a shell upper seat and multiple shell side plates, and the multiple shell side plates are connected in sequence along the circumferential direction. The multiple shell side plates are all located between the shell bottom plate and the shell upper seat, and the shell upper seat is provided with a square hole for installing the base cavity part.

[0016] A camera module bonding device in the present invention comprises a lens clamp and the above-mentioned camera module bonding fixture, wherein the lens clamp is provided with a calibration block.

[0017] The beneficial effects of the present invention are:

[0018] 1. The camera module bonding fixture of the present invention can move the cavity pressing block through a first drive so that the cavity pressing block is located above the module base, thereby limiting the movement of the module base; and the first drive moves the cavity pressing block to expose the mounting slot, allowing the module base to enter and exit the mounting slot;

[0019] 2. The camera module bonding fixture of the present invention can move the RF pin connector closer to or away from the clearance hole through the second driving mechanism, thereby connecting or disconnecting the RF pin connector from the module electrical connector, thereby powering on or off the module base;

[0020] 3. The camera module bonding fixture of the present invention can ensure the accurate movement direction of the cavity pressing block and the connector mounting seat;

[0021] 4. The camera module bonding fixture of the present invention can prevent the pins from being damaged when the RF pin connector is connected to the module electrical connector;

[0022] 5. The storage seat of the camera module bonding fixture of the present invention can provide a temporary storage location for another lens to be bonded, preparing for the next bonding, which can improve the bonding efficiency;

[0023] 6. The camera module bonding device of the present invention can cooperate with the AA device to bond the lens and the module base through the AA process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to make the purpose, technical solutions and beneficial effects of the present invention more clear, the present invention provides the following drawings for illustration:

[0025] Figure 1 This is a schematic diagram of the structure of the camera module bonding fixture of the present invention;

[0026] Figure 2This is a second structural diagram of the camera module bonding fixture of the present invention;

[0027] Figure 3 A schematic diagram of the structure of the camera module bonding fixture of the present invention in which the lens and the module base are respectively installed;

[0028] Figure 4 This is one of the structural diagrams of the electrical connection device, the base cavity component and the housing bottom plate of the present invention;

[0029] Figure 5 This is the second structural diagram of the electrical connection device, the base cavity component and the housing bottom plate of the present invention;

[0030] Figure 6 It is a structural schematic diagram of the base cavity component of the present invention;

[0031] Figure 7 This is a schematic structural diagram of the housing upper seat of the present invention;

[0032] Figure 8 It is a structural schematic diagram of the camera module bonding device of the present invention;

[0033] Figure 9 This is a schematic structural diagram of the lens clamping claw and the lens of the present invention;

[0034] Figure 10 This is one of the structural diagrams of the camera module;

[0035] Figure 11 This is the second structural diagram of the camera module.

[0036] The following are marked in the accompanying drawings:

[0037] 1-base positioning device, 11-cavity pressure block, 111-base exposed groove, 12-first driving mechanism, 121-first cylinder, 122-first connecting block, 123-pressure block connecting seat, 124-guide rail, 125-anti-slip limit pin;

[0038] 2-electrical connection device, 21-RF pin connector, 22-second driving mechanism, 221-second cylinder, 222-flexible floating joint, 223-connector mounting seat, 224-guide rod, 225-support plate;

[0039] 3- fixture housing, 31- housing upper seat, 32- housing side plate, 33- housing bottom plate;

[0040] 4-base cavity, 41-mounting slot, 42-allowance hole, 43-guide hole;

[0041] 5- storage seat, 51- socket;

[0042] 6-lens clamp, 61-calibration block;

[0043] 7-camera module, 71-lens, 72-module base, 721-mounting hole, 722-module electrical connector. DETAILED DESCRIPTION

[0044] The technical solution of the present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0045] like Figure 1-Figure 7 As shown, a camera module bonding fixture in this embodiment includes a base positioning device 1, an electrical connection device 2, a fixture housing 3, and a base cavity member 4 provided on the fixture housing 3;

[0046] The fixture housing 3 has a cavity inside, and the base cavity 4 is provided with a mounting groove 41 for accommodating the module base 72 of the camera module 7, and the mounting groove 41 is provided with a through hole 42 for connecting the cavity with the outside;

[0047] The base positioning device 1 includes a cavity pressing block 11 provided on the fixture housing 3 and a first driving mechanism 12 capable of driving the cavity pressing block 11 to move, and a base exposed groove 111 is provided on the cavity pressing block 11; when the first driving mechanism 12 drives the cavity pressing block 11 to move above the mounting groove 41, a clamping space for fixing the module base 72 is formed between the cavity pressing block 11 and the base cavity part 4, and the base exposed groove 111 exposes the mounting hole 721 of the module base 72; when the first driving mechanism 12 drives the cavity pressing block 11 away from the mounting groove 41, the module base 72 can enter and exit the mounting groove 41;

[0048] The electrical connection device 2 is arranged in the cavity, and the electrical connection device 2 includes a radio frequency pin connector 21 and a second driving mechanism 22. The radio frequency pin connector 21 is located directly below the clearance hole 42. The second driving mechanism 22 can drive the radio frequency pin connector 21 to move in the up and down directions so that the radio frequency pin connector 21 is close to or away from the clearance hole 42.

[0049] During use, the cavity pressing block 11 is moved by the first driving mechanism 12 to expose the installation groove 41, and then the module base 72 of the camera module 7 is placed in the installation groove 41, and then the cavity pressing block 11 is moved by the first driving mechanism so that the cavity pressing block 11 is located above the module base 72, thereby limiting the movement of the module base 72, and then the RF pin connector 21 is moved close to the clearance hole by the second driving mechanism 22 until the RF pin connector 21 is connected to the module electrical connector 722, so that the module base 72 is powered on, providing a basis for the subsequent use of the AA process to bond the lens 71 and the module base 72; after the lens 71 and the module base 72 are bonded, the RF pin connector 21 and the module electrical connector 722 are separated by the second driving mechanism 22, and the cavity pressing block 11 is moved by the first driving mechanism 12 to expose the installation groove 41, so that the finished camera module 7 after bonding can be taken out from the installation groove 41.

[0050] In this embodiment, the first driving mechanism 12 includes a first cylinder 121, a first connecting block 122, and two pressure block connecting seats 123. The first cylinder 121 is arranged on one side of the clamp housing 3. The first connecting block 122 is connected to the output shaft of the first cylinder 121, and the axis of the output shaft of the first cylinder 121 is along the left-right direction. The two pressure block connecting seats 123 are respectively connected to the front and rear sides of the cavity pressure block 11, and the first connecting block 122 is connected to one of the pressure block connecting seats 123. Preferably, in this embodiment, a guide rail 124 is respectively provided on the front and rear sides of the clamp housing 3. The length directions of the two guide rails 124 are both along the left-right direction. The two pressure block connecting seats 123 are respectively slidably connected to the two guide rails 124.

[0051] The two pressure block connecting seats 123 and the cavity pressure block 11 are connected to form an inverted "U" shape. The output shaft of the first cylinder 121, the first connecting block 122, the pressure block connecting seat 123 and the cavity pressure block 11 are connected, which can ensure that the cavity pressure block 11 can move in the left and right directions when the output shaft of the first cylinder 121 is extended or retracted, thereby making the cavity pressure block 11 close to or away from the top of the installation groove 41. The two pressure block connecting seats 123 can ensure the accurate movement direction of the cavity pressure block 11.

[0052] In this embodiment, anti-escape limit pins 125 are provided at both ends of the two corresponding guide rails 124 on the clamp housing 3. The anti-escape limit pins 125 protrude from the wire rails and can prevent the pressure block connecting seat 123 from sliding out of the guide rails 124.

[0053] In this embodiment, the second drive mechanism 22 includes a second cylinder 221, a flexible floating joint 222, and a connector mounting seat 223, arranged sequentially from bottom to top. The axis of the output shaft of the second cylinder 221 is in the vertical direction, and the RF pin connector 21 is mounted on the connector mounting seat 223. The extension and retraction of the output shaft of the second cylinder 221 can drive the flexible floating joint 222 and the connector mounting seat 223 toward or away from the clearance hole 42, thereby enabling the connector mounting seat 223 to drive the RF pin connector 21 toward or away from the clearance hole 42, thereby achieving connection or separation between the RF pin connector 21 and the module electrical connector 722. The flexible floating joint 222 is made of an elastic material, such as rubber, which can prevent damage to the pins of the RF pin connector 21 when connected to the module electrical connector 722.

[0054] In this embodiment, the connector mounting base 223 is provided with a plurality of guide rods 224, and the base cavity member 4 is provided with guide holes 43 at positions corresponding to the plurality of guide rods 224. The axes of the guide rods 224 and guide holes 43 are both vertically aligned. The base cavity member 4 is fixed to the fixture housing 3. The guide holes 43 on the base cavity member 4 cooperate with the guide rods 224 on the connector mounting base 223 to ensure accurate movement of the connector mounting base 223, thereby preventing the RF pin connector 21 from shifting and thus failing to connect with the module electrical connector 722.

[0055] In this embodiment, the second driving mechanism 22 further includes a support plate 225 connected to the lower portion of the second cylinder 221 , and the support plate 225 is connected to the fixture housing 3 . The support plate 225 can provide a mounting position for the second cylinder 221 .

[0056] This embodiment also includes a storage seat 5 for placing the lens 71 of the camera module 7. The storage seat 5 is connected to the fixture housing 3 and is provided with a socket 51 for inserting the lens 71. The storage seat 5 and the second cylinder 221 are located on the front and rear sides of the fixture housing 3, respectively. During the AA bonding process, the storage seat 5 can provide a temporary storage location for the next lens 71 to be bonded. The other material transfer equipment can move the next lens 71 to be bonded to the storage seat 5 for use in preparation for the next bonding process, thereby improving bonding efficiency.

[0057] In this embodiment, the fixture housing 3 includes a housing bottom plate 33, a housing upper seat 31, and a plurality of housing side plates 32. The plurality of housing side plates 32 are sequentially connected in a circumferential direction and are located between the housing bottom plate 33 and the housing upper seat 31. The housing upper seat 31 is provided with a square hole for mounting the base cavity member 4. Preferably, there are four housing side plates 32, and the housing bottom plate 33, the housing upper seat 31, and the four housing side plates 32 form an octahedron. The base cavity member 4 and the guide rail 124 are both connected to the housing upper seat 31. The second cylinder 221 is connected to one of the housing side plates 32, the storage seat 5 is connected to the other housing side plate 32, and the support plate 225 is connected to the housing bottom plate 33.

[0058] like Figures 1-9 As shown, a camera module bonding device in this embodiment includes a lens clamp 6 and the aforementioned camera module bonding fixture. The lens clamp 6 is provided with a calibration block 61. The lens clamp 6 can be connected to the robot arm of the AA device. After the lens clamp 6 clamps the lens 71 located on the storage seat 5, the robot drives the lens clamp 6 to insert the mounting hole 721 on the module base 72. The calibration block 61 is provided with a calibration hole corresponding to the lens of the lens 71, which can serve as a reference for active alignment, facilitating the bonding of the lens 71 to the module base 72 through the AA process in conjunction with the AA device.

[0059] The working steps of the camera module bonding equipment are as follows:

[0060] S1, the first driving mechanism 12 moves the cavity pressing block 11 to expose the mounting groove 41;

[0061] S2, such as Figure 3 As shown, the module base 72 is placed into the installation slot 41 through a material transfer device for loading and feeding the module base 72;

[0062] S3, moving the cavity pressing block 11 through the first driving mechanism so that the cavity pressing block 11 is located above the mold base 72, thereby restricting the movement of the mold base 72;

[0063] S4, moving the RF pin connector 21 close to the clearance hole through the second driving mechanism 22 until the RF pin connector 21 is connected to the module electrical connector 722, thereby energizing the module base 72;

[0064] S5: After the lens clamp 6 grips the lens 71 on the storage seat 5, the robot arm of the AA device drives the lens clamp 6 to insert it into the mounting hole 721 on the module base 72. After insertion, the lens 71 is moved up and down to simulate the optimal height of the lens 71 before bonding. During this process, the material transfer device for loading and unloading the lens 71 moves another lens 71 to be bonded to the storage seat 5 for standby use.

[0065] S6, such as Figure 8 As shown, the RF pin connector 21 is separated from the module electrical connector 722 by the second driving mechanism 22, and the cavity pressing block 11 is moved by the first driving mechanism 12 to expose the mounting groove 41;

[0066] S7, using the material conveying equipment for unloading the finished camera module 7, the finished camera module 7 after bonding is removed from the mounting groove 41 and moved to the finished product storage position;

[0067] S8. Repeat S1-S7.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A camera module bonding fixture, characterized by: It comprises a base positioning device (1), an electrical connection device (2), a fixture housing (3), a base cavity (4) arranged on the fixture housing (3), and a storage seat (5) for accommodating a lens (71) of a camera module (7); The fixture housing (3) has a cavity inside, the base cavity (4) is provided with a mounting groove (41) for accommodating a module base (72) of a camera module (7), and the mounting groove (41) is provided with a clearance hole (42) for connecting the cavity with the outside; The base positioning device (1) includes a cavity pressing block (11) provided on the fixture housing (3) and a first driving mechanism (12) capable of driving the cavity pressing block (11) to move, and a base exposed groove (111) is provided on the cavity pressing block (11); when the first driving mechanism (12) drives the cavity pressing block (11) to move above the mounting groove (41), a clamping space for fixing the module base (72) is formed between the cavity pressing block (11) and the base cavity member (4), and the base exposed groove (111) exposes the mounting hole (721) of the module base (72); when the first driving mechanism (12) drives the cavity pressing block (11) away from the mounting groove (41), the module base (72) can enter and exit the mounting groove (41); The electrical connection device (2) is arranged in the cavity, and the electrical connection device (2) includes a radio frequency pin connector (21) and a second driving mechanism (22). The radio frequency pin connector (21) is located directly below the clearance hole (42). The second driving mechanism (22) can drive the radio frequency pin connector (21) to move in the up and down directions so that the radio frequency pin connector (21) approaches or moves away from the clearance hole (42). The second driving mechanism (22) comprises a second cylinder (221), a flexible floating joint (222), and a connector mounting seat (223) arranged in sequence from bottom to top, the axis of the output shaft of the second cylinder (221) is along the up-down direction, and the radio frequency pin connector (21) is mounted on the connector mounting seat (223); A plurality of guide rods (224) are provided on the connector mounting seat (223), and guide holes (43) are respectively provided at positions corresponding to the plurality of guide rods (224) on the base cavity member (4), wherein the axes of the guide rods (224) and the guide holes (43) are both in the up-down direction; The storage seat (5) is connected to the fixture housing (3), and a socket (51) for inserting a lens (71) is provided on the storage seat (5).

2. The camera module bonding fixture according to claim 1, wherein: The first driving mechanism (12) includes a first cylinder (121), a first connecting block (122) and two pressure block connecting seats (123), wherein the first cylinder (121) is arranged on one side of the clamp housing (3), the first connecting block (122) is connected to the output shaft of the first cylinder (121), and the axis of the output shaft of the first cylinder (121) is along the left-right direction; the two pressure block connecting seats (123) are respectively connected to the front and rear sides of the cavity pressure block (11), and the first connecting block (122) is connected to one of the pressure block connecting seats (123).

3. The camera module bonding fixture according to claim 2, wherein: A guide rail (124) is provided on the front and rear sides of the clamp housing (3), respectively. The length directions of the two guide rails (124) are both along the left and right directions. The two pressure block connecting seats (123) are respectively slidably connected to the two guide rails (124).

4. The camera module bonding fixture according to claim 3, wherein: Anti-fall-out limit pins (125) are provided at both ends of the clamp housing (3) corresponding to the two guide rails (124).

5. The camera module bonding fixture according to claim 1, wherein: The second driving mechanism (22) further comprises a support plate (225) connected to the lower portion of the second cylinder (221), and the support plate (225) is connected to the clamp housing (3).

6. The camera module bonding fixture according to claim 1, wherein: The clamp shell (3) includes a shell bottom plate (33), a shell upper seat (31) and a plurality of shell side plates (32), wherein the plurality of shell side plates (32) are connected in sequence along a circumferential direction, and the plurality of shell side plates (32) are all located between the shell bottom plate (33) and the shell upper seat (31), and the shell upper seat (31) is provided with a square hole for mounting the base cavity part (4).

7. A camera module bonding device, characterized in that: It comprises a lens clamp (6) and a camera module bonding fixture according to any one of claims 1 to 6, wherein a calibration block (61) is provided on the lens clamp (6).

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