Positioning mechanism and method for hot-pressing assembly of camera module

Abstract

The invention relates to the technical field of camera assembly equipment, in particular to a positioning mechanism and method for hot-pressing assembly of a camera module, the positioning mechanism comprises a lower box seat, an upper box body and a working platform, the working platform is sequentially provided with a manipulator assembly and a base, the base is placed on the base, and an electric push cylinder is fixedly mounted at the end of the manipulator assembly; a piston rod of the electric push cylinder extends outwards and is fixedly connected with a Z-axis mounting block, the Z-axis mounting block is sleeved with an X-axis lifting seat, the X-axis lifting seat is sleeved with a main assembling seat, a Y-axis moving seat is slidably mounted at the lower end of the main assembling seat in a limiting mode, an upper pressing plate is arranged on the Y-axis moving seat, and four sets of preset grooves are symmetrically formed in the working platform relative to the base. A group of hinging seats are arranged in each group of preset grooves, main pressing arms are mounted on the hinging seats, and an auxiliary positioning assembly is further arranged on the base; alignment and fixation can be completed in one-time operation, the adjusting and aligning time is shortened, and therefore the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of camera assembly equipment, and in particular to a positioning mechanism and method for hot pressing assembly of a camera module. Background Art

[0002] With the rapid development of electronic products and smart devices, camera modules play an increasingly important role in various applications; traditional camera module assembly methods mostly use mechanical fixing or glue bonding. These methods are relatively simple in operation process, but there are many shortcomings. For example, mechanical fixing methods are difficult to ensure the precise alignment of the lens and the base, which can easily lead to a decrease in optical performance; while glue bonding may be affected by environmental factors such as temperature and humidity, resulting in insufficient bonding strength, and even falling off or deformation, which in turn affects the quality and market competitiveness of the product.

[0003] Therefore, the AA glue hot-pressing assembly technology has gradually attracted the attention of the industry. This method pre-coats the AA glue between the base and the lens, and then uses UV light for preliminary positioning to achieve the initial fixing strength; then, it is completely cured by heating to achieve stable bonding strength. This mechanism ensures that the glue can achieve the best bonding effect in a short time and meet the needs of long-term use.

[0004] However, in actual applications, since AA glue is applied on the base, the position of the lens needs to be repeatedly adjusted and then aligned and pressed with the base before it can be fixed by UV light irradiation. Repeated adjustment of the lens position can easily lead to inaccurate alignment, especially during manual operation. It not only increases the complexity of the operation and may lead to low assembly efficiency, but it is also often difficult to ensure precise alignment between the lens and the base, which will directly affect the imaging quality of the camera module. Summary of the invention

[0005] The object of the present invention is to provide a positioning mechanism and method for hot pressing assembly of a camera module to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a positioning mechanism for hot-pressing assembly of a camera module, comprising a lower box seat, an upper box body, and a working platform arranged between the lower box seat and the upper box body, the working platform is sequentially provided with a manipulator assembly and a base, a base is placed on the base, a group of UV light source assemblies are arranged at the four corners of the base, an electric push cylinder is fixedly installed at the end of the manipulator assembly, the piston rod of the electric push cylinder extends outward and is fixedly connected to a Z-axis mounting block, the outer part of the Z-axis mounting block is sleeved with an X-axis hanging seat, the outer part of the X-axis hanging seat is sleeved with a main assembly seat, the lower end of the main assembly seat is limitedly slidably installed with a Y-axis moving seat, The Y-axis moving seat is driven by the driven component to move up and down in a straight line, which is used to push the lens to dock with the base; four groups of upper pressure plates distributed in a circular array are arranged on the Y-axis moving seat, and multiple groups of upper pressure plates are driven by the driving component and perform radial synchronous movement, which are used to press or loosen the lens; the working platform is symmetrically provided with four groups of preset grooves about the base, and each group of preset grooves is provided with a group of hinged seats, and the upper limit rotation of the hinged seats is provided with main pressure arms, and multiple groups of main pressure arms are driven by the pushing component and perform 90° up and down flipping movement, which are used to calibrate and position the main assembly seat; the driven component is provided with a power source by the pushing component; an auxiliary positioning component is also provided on the base, which is used to calibrate and position the base.

[0007] Preferably, the Z-axis mounting block is slidably installed in the X-axis lifting seat, and Z-axis balance springs are fixedly arranged on both horizontal sides of the Z-axis mounting block; the X-axis lifting seat is slidably installed on the main assembly seat, and X-axis balance springs are fixedly arranged on both front and rear sides of the X-axis lifting seat.

[0008] Preferably, the top of the Y-axis moving seat is protrudingly provided with an outer edge, the lower end of the outer edge is fixedly provided with a Y-axis return spring, and rectangular grooves are provided at both ends of the Y-axis moving seat, and lateral inclined grooves are provided on both sides of the rectangular groove, and lateral push columns are inserted in the lateral inclined grooves, the lateral push columns are fixedly connected to the connecting plate, and the connecting plate is limitedly slidably installed in the main assembly seat, and the end of the connecting plate away from the lateral push column extends out of the main assembly seat and is connected to the driven component.

[0009] Preferably, the driven assembly includes a transverse push plate, a driven seat, a cylindrical pin, a vertical push strip, a matching spring, an L-shaped push strip, a vertical rack and a spur gear. The driven seat and the L-shaped push strip are both limitedly slidably installed in the main pressure arm. One end of the transverse push plate is fixedly connected to the driven seat, and the other end of the transverse push plate extends into the main assembly seat and abuts against the connected lateral push column. A driving inclined groove for accommodating the cylindrical pin is provided on the driven seat. One end of the vertical push strip is fixedly connected to the cylindrical pin, and the other end of the vertical push strip is fixedly connected to the L-shaped push strip. The matching spring is fixedly arranged on the upper end surface of the L-shaped push strip.

[0010] Preferably, the end of the main pressure arm is rotatably mounted on the hinge seat through the center axis, and a spur gear is rotatably mounted in the hinge seat. The spur gear is fixedly sleeved on the center axis, and the spur gear is meshingly connected to the vertical rack. One end of the vertical rack extends into the main pressure arm and is connected to the L-shaped push bar, and the other end of the vertical rack extends into the working platform and is connected to the pushing assembly.

[0011] Preferably, the pushing assembly includes a connecting frame, a rotating screw and a No. 2 motor. The connecting frame is installed on the working platform with limited sliding. An internal screw hole for accommodating the rotating screw is opened in the middle of the connecting frame. The end of the rotating screw is fixedly connected to the output end of the No. 2 motor, and the lower end of the vertical rack is fixedly connected to the connecting frame.

[0012] Preferably, a placement groove for accommodating a driving assembly is provided inside the Y-axis moving seat, and the driving assembly includes a No. 1 motor, a rotating disk and a toggle column. The output shaft of the No. 1 motor is coaxially and fixedly connected to the rotating disk. The rotating disk is penetrated by four groups of arc grooves distributed in a circular array. One end of the toggle column is inserted into the arc groove, and the other end of the toggle column is fixedly connected to the translation plate.

[0013] Preferably, one end of the translation plate is slidably mounted on the lower end surface of the Y-axis moving seat, and the other end of the translation plate is fixedly connected to the upper pressing plate, and a blocking bar is protrudingly provided on the side wall of the upper pressing plate.

[0014] Preferably, the auxiliary positioning assembly includes a lower pressure plate, a limit block and a resistance spring. The lower pressure plate is limited and slidably installed on the base. Both ends of the side walls of the lower pressure plate are fixedly connected to the limit blocks, and the end of the limit block away from the base is fixedly connected to the resistance spring.

[0015] A camera module hot pressing assembly method, using a positioning mechanism for hot pressing assembly of the camera module, the method comprising the following steps: S1: Place the base to be assembled on the base, and evenly apply AA glue on the surface of the base; then start the driving assembly to drive multiple groups of upper pressing plates to clamp and fix the lens to be assembled, so that the lens can move as a whole with the Y-axis moving base; S2: Then the main assembly seat and the lens are transported as a whole to the top of the base by the robot assembly, and the Y-axis moving seat and the lens are driven by the electric push cylinder to move downward for a distance and then remain stationary; S3: Next, by turning on the No. 2 motor, and under the action of the push assembly and the driven assembly, the main pressing arm is rotated upward 90° and then remains stationary, so as to align and calibrate the main assembly seat; at the same time, the Y-axis moving seat is forced to move the lens downward to be pressed together with the base; finally, the AA glue between the lens and the base is irradiated and fixed by the UV light source assembly.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention provides four groups of main pressing arms that can perform 90° up-and-down flipping movements to quickly center and position the main assembly seat, thereby realizing position calibration of the lens and the base, and provides a Y-axis moving seat to drive the lens to move downward, so that the lens can be stably docked with the base along the calibrated position. Different from the existing assembly positioning mechanism, the present invention can complete the alignment and fixation in one operation, and can move downward for pressing after precise centering, so that the fluidity of the glue during pressing is better, and the gap between the lens and the base can be filled more effectively, reducing the waste of glue and improving the bonding strength.

[0017] 2. Through the design of the follower seat, cylindrical pin, vertical push bar, matching spring, L-shaped push bar, vertical rack and spur gear, the driving force of the second motor can be converted into the driving force for the main pressure arm and the horizontal push plate in turn, and the horizontal push plate can adaptively perform telescopic movement as the position of the main pressure arm changes. When the main pressure arm rotates 90° upward and remains stationary, the horizontal push plate can extend outward and push the connecting plate. This arrangement can ensure that the lens can only be moved down and pressed after it is aligned with the base position, thereby greatly reducing the deviation between the lens and the base and improving the overall centering accuracy.

[0018] 3. The present invention can convert the driving force of the No. 1 motor into the radial synchronous movement of the multiple sets of translation plates by arranging a rotating disk, a toggle column and using them in conjunction with multiple sets of arc grooves, so that the multiple sets of upper pressing plates can clamp and fix the lens in advance, which is convenient for the lens to move as a whole with the Y-axis moving seat; and by arranging a limit block on the base and using it in conjunction with a resisting spring, the lower pressing plate can quickly further center and calibrate the base while the main pressing arm rotates upward to press and position the main assembly seat, and by applying pressure with multiple lower pressing plates distributed at different positions, more uniform force transmission can be achieved, avoiding damage to the base due to excessive local pressure, thereby ensuring the stability and reliability of assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the connection between the lower box seat and the working platform of the present invention.

[0021] Figure 3 It is a connection diagram of the manipulator assembly, the electric push cylinder and the main assembly seat of the present invention.

[0022] Figure 4 It is a three-dimensional schematic diagram of the electric push cylinder and the main assembly seat of the present invention.

[0023] Figure 5 It is a schematic cross-sectional view of the main assembly seat, the Y-axis moving seat and the main pressing arm of the present invention.

[0024] Figure 6 It is a schematic cross-sectional view of the main assembly seat of the present invention.

[0025] Figure 7 It is an exploded schematic diagram of the Z-axis mounting block, the X-axis lifting seat, the main assembly seat and the Y-axis moving seat of the present invention.

[0026] Figure 8 It is a schematic diagram of the Y-axis moving base and the driving assembly of the present invention.

[0027] Fig. 9 It is a schematic diagram of the driven component and the pushing component of the present invention.

[0028] Fig.10 It is an exploded schematic diagram of the main pressure arm and the driven assembly of the present invention.

[0029] In the figure: 1. Lower box seat; 2. Upper box body; 3. Working platform; 4. Base; 5. UV light source assembly; 6. Manipulator assembly; 7. Electric push cylinder; 8. Z-axis mounting block; 9. Z-axis balance spring; 10. X-axis lifting seat; 11. X-axis balance spring; 12. Main assembly seat; 13. Y-axis moving seat; 1301. Rectangular groove; 1302. Lateral inclined groove; 14. Y-axis reset spring; 15. No. 1 motor; 16. Rotating disk; 17. Arc groove; 18. Toggle column; 19. Translation plate; 20. Upper pressure plate; 21. Lateral push column; 22. Connecting plate; 23. Horizontal push plate; 24. Follower seat; 25. Driving inclined groove; 26. Cylindrical pin; 27. Vertical push bar; 28. Matching spring; 29. ​​L-shaped push bar; 30. Vertical rack; 31. Spur gear; 32. Center axis; 33. Articulated seat; 34. Main pressure arm; 35. Connecting frame; 36. Rotating screw; 37. No. 2 motor; 38. Lower pressure plate; 39. Limit block; 40. Resistance spring; 41. Base; 42. Lens. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figures 1 to 10The present invention provides a technical solution: a positioning mechanism for hot pressing assembly of a camera module, comprising a lower box seat 1, an upper box body 2, and a working platform 3 arranged between the lower box seat 1 and the upper box body 2, the working platform 3 is sequentially provided with a manipulator assembly 6 and a base 4, a base 41 is placed on the base 4, and a group of UV light source assemblies 5 are arranged at the four corners of the base 41, an electric push cylinder 7 is fixedly installed at the end of the manipulator assembly 6, the piston rod of the electric push cylinder 7 extends outward and is fixedly connected with a Z-axis mounting block 8, the outer sleeve of the Z-axis mounting block 8 is sleeved with an X-axis hanging seat 10, the outer sleeve of the X-axis hanging seat 10 is sleeved with a main assembly seat 12, the lower end of the main assembly seat 12 is limited and slidably installed with a Y-axis moving seat 13, and the Y-axis moving seat 13 is driven by a driven The component is pushed to move up and down in a straight line, which is used to push the lens 42 to dock and press against the base 41; four groups of upper pressure plates 20 distributed in a circular array are arranged on the Y-axis moving seat 13, and multiple groups of upper pressure plates 20 are driven by the driving component and perform radial synchronous movement, which are used to press or loosen the lens 42; the working platform 3 is symmetrically provided with four groups of preset grooves about the base 4, and each group of preset grooves is provided with a group of hinged seats 33, and the upper limit rotation of the hinged seats 33 is equipped with main pressure arms 34, and multiple groups of main pressure arms 34 are driven by the pushing component and perform 90° up and down flipping movement, which is used to calibrate and position the main assembly seat 12; the driven component is powered by the pushing component; an auxiliary positioning component is also provided on the base 4, which is used to calibrate and position the base 41.

[0032] Furthermore, the present invention arranges four groups of main pressing arms 34 that can perform 90° up and down flipping movements to quickly center and position the main assembly seat 12, thereby realizing position calibration of the lens 42 and the base 41, and arranges a Y-axis moving seat 13 to drive the lens 42 to move downward, so that the lens 42 can be stably docked with the base 41 along the calibrated position. Different from the existing assembly positioning mechanism, the present invention can complete the alignment and fixation in one operation, and can move down and press after precise centering, so that the glue has better fluidity during pressing, and can more effectively fill the gap between the lens 42 and the base 41, thereby reducing the waste of glue and improving the bonding strength.

[0033] like Figure 6 as well as Figure 7 As shown, the Z-axis mounting block 8 is slidably installed in the X-axis hanging seat 10, and the Z-axis balance springs 9 are fixedly arranged on both horizontal sides of the Z-axis mounting block 8; the X-axis hanging seat 10 is slidably installed on the main assembly seat 12, and the X-axis balance springs 11 are fixedly arranged on the front and rear sides of the X-axis hanging seat 10.

[0034] Furthermore, by setting the Z-axis balance spring 9, the Z-axis mounting block 8 can be located in the center position of the X-axis lifting seat 10 without being affected by external forces, and by setting the X-axis balance spring 11, the X-axis lifting seat 10 can be located in the center position of the main assembly seat 12 without being affected by external forces; the advantage of such a setting is that the main assembly seat 12 can not only move stably with the electric push cylinder 7, but also adjust its position under the push of the main pressure arm 34.

[0035] like Figure 6-Figure 8 As shown, the top of the Y-axis moving seat 13 is protrudingly provided with an outer edge, the lower end of the outer edge is fixedly provided with a Y-axis reset spring 14, and rectangular grooves 1301 are provided at both ends of the Y-axis moving seat 13, and lateral inclined grooves 1302 are provided on both sides of the rectangular groove 1301, and lateral push pins 21 are inserted into the lateral inclined grooves 1302, and the lateral push pins 21 are fixedly connected to the connecting plate 22, and the connecting plate 22 is limitedly slidably installed in the main assembly seat 12, and the end of the connecting plate 22 away from the lateral push pin 21 extends out of the main assembly seat 12 and is connected to the driven component.

[0036] Furthermore, by setting the Y-axis return spring 14, the lateral push column 21 and the connecting plate 22 for use in conjunction with the lateral inclined groove 1302, the driving force of the lateral push plate 23 can be converted into a linear up and down movement of the Y-axis moving seat 13, so that the lens 42 moves down and is pressed against the base 41.

[0037] like Figure 9-10 As shown, the driven assembly includes a transverse push plate 23, a driven seat 24, a cylindrical pin 26, a vertical push strip 27, a matching spring 28, an L-shaped push strip 29, a vertical rack 30 and a spur gear 31. The driven seat 24 and the L-shaped push strip 29 are both limitedly slidably installed in the main pressure arm 34. One end of the transverse push plate 23 is fixedly connected to the driven seat 24, and the other end of the transverse push plate 23 extends into the main assembly seat 12 and abuts against the connected lateral push column 21. A driving inclined groove 25 for accommodating the cylindrical pin 26 is provided on the driven seat 24. One end of the vertical push strip 27 is fixedly connected to the cylindrical pin 26, and the other end of the vertical push strip 27 is fixedly connected to the L-shaped push strip 29. The matching spring 28 is fixedly arranged on the upper end surface of the L-shaped push strip 29. The end of the main pressure arm 34 is rotatably mounted on the hinge seat 33 through the central axis 32. A spur gear 31 is rotatably mounted in the hinge seat 33. The spur gear 31 is fixedly sleeved on the central axis 32. The spur gear 31 is meshed and connected to the vertical rack 30. One end of the vertical rack 30 extends into the main pressure arm 34 and is connected to the L-shaped push bar 29. The other end of the vertical rack 30 extends into the working platform 3 and is connected to the pushing assembly.

[0038] Furthermore, through the design of the driven seat 24, cylindrical pin 26, vertical push bar 27, matching spring 28, L-shaped push bar 29, vertical rack 30 and spur gear 31, the driving force of the second motor 37 can be converted into the driving force for the main pressure arm 34 and the horizontal push plate 23 in turn, and the horizontal push plate 23 can adaptively perform telescopic movement as the position of the main pressure arm 34 changes. When the main pressure arm 34 rotates upward 90° and remains stationary, the horizontal push plate 23 can extend outward and push the connecting plate 22. This arrangement can ensure that the lens 42 can only be moved down and pressed after it is aligned with the base 41, thereby greatly reducing the deviation between the lens 42 and the base 41 and improving the overall centering accuracy.

[0039] like Figure 9-10 As shown, the pushing assembly includes a connecting frame 35, a rotating screw 36 and a second motor 37. The connecting frame 35 is installed on the working platform 3 with limited sliding. An internal screw hole for accommodating the rotating screw 36 is opened in the middle of the connecting frame 35. The end of the rotating screw 36 is fixedly connected to the output end of the second motor 37, and the lower end of the vertical rack 30 is fixedly connected to the connecting frame 35.

[0040] Specifically, the second motor 37 is turned on to drive the rotating screw 36 to rotate. Under the screwing action of the internal and external threads, the connecting frame 35 is forced to drive the vertical rack 30 to move upward. The vertical paper strip acts on the spur gear 31, so that the central shaft 32 is forced to drive the main pressure arm 34 to rotate 90° upward, thereby aligning and calibrating the main assembly seat 12. like Figure 9-10 As shown, a placement slot for accommodating the drive assembly is provided inside the Y-axis moving seat 13, and the drive assembly includes a No. 1 motor 15, a rotating disk 16, and a toggle column 18. The output shaft of the No. 1 motor 15 is coaxially fixedly connected to the rotating disk 16. Four groups of arc grooves 17 distributed in a circular array are provided through the rotating disk 16. One end of the toggle column 18 is inserted into the arc groove 17, and the other end of the toggle column 18 is fixedly connected to the translation plate 19. One end of the translation plate 19 is limitedly slidably installed on the lower end surface of the Y-axis moving seat 13, and the other end of the translation plate 19 is fixedly connected to the upper pressing plate 20, and a stop bar is protrudingly provided on the side wall of the upper pressing plate 20.

[0041] Furthermore, by setting a rotating disk 16 and a toggle column 18 for use with multiple groups of arc grooves 17, the driving force of the No. 1 motor 15 can be converted into radial synchronous movement of multiple groups of translation plates 19, so that multiple groups of upper pressure plates 20 can pre-clamp and fix the lens 42, making it convenient for the lens 42 to move as a whole along the Y-axis moving seat 13.

[0042] like Figure 9-10As shown, the auxiliary positioning assembly includes a lower pressure plate 38, a limit block 39 and a resistance spring 40. The lower pressure plate 38 is slidably installed on the base 4. Both ends of the side walls of the lower pressure plate 38 are fixedly connected to the limit blocks 39. The end of the limit block 39 away from the base 41 is fixedly connected to the resistance spring 40.

[0043] Furthermore, by providing a limit block 39 and a resistance spring 40 on the base 4 for use in conjunction, the lower pressure plate 38 can quickly align and calibrate the base 41 while the main pressure arm 34 rotates upward to press and position the main assembly seat 12, and by applying pressure through multiple lower pressure plates 38 distributed at different positions, more uniform force transmission can be achieved, avoiding damage to the base 41 due to excessive local pressure, thereby ensuring the stability and reliability of the assembly.

[0044] When the present invention is in use: first, AA glue is evenly coated on the surface of the base 41 placed on the base 4, and then the No. 1 motor 15 is turned on to drive the rotating disk 16 to rotate, and the arc groove 17 on the rotating disk 16 acts on the toggle column 18, so that the toggle column 18 is forced to drive multiple groups of translation plates 19 to perform radial synchronous movement, so that multiple groups of upper pressure plates 20 pre-clamp and fix the lens 42, which is convenient for the lens 42 to move as a whole with the Y-axis moving seat 13; then, the main assembly seat 12 and the lens 42 are transported as a whole to the top of the base 4 through the manipulator assembly 6, and the Y-axis moving seat 13 and the lens 42 are driven by the electric push cylinder 7 to move downward for a distance and then remain motionless. At this time, the lens 42 is not in contact with the base 41; then, the No. 2 motor 37 is turned on to drive the rotating screw 36 to rotate, and under the screwing action of the internal and external threads, the connecting frame 35 is forced to drive the vertical rack 30 to move upward, and the vertical paper strip acts The main pressing arm 34 is driven by the spur gear 31 to rotate the central axis 32 upward by 90°, thereby calibrating the main assembly seat 12; as the vertical rack 30 continues to move upward, it is disengaged from the spur gear 31 and extends into the main pressing arm 34 to push the L-shaped push bar 29 upward; at this time, the main pressing arm 34 remains stationary under the clamping action of the vertical rack 30, while the L-shaped push bar 29 squeezes the matching spring 28 and pushes the vertical push bar 27 upward, and the vertical push bar 27 is The cylindrical pin 26 acts on the driving inclined groove 25, so that the driven seat 24 is forced to drive the lateral push plate 23 to extend outward, so that the lateral push plate 23 extends into the main assembly seat 12 and pushes on the connecting plate 22, and the lateral push column 21 on the connecting plate 22 acts on the lateral inclined groove 1302, so that the Y-axis moving seat 13 is forced to drive the lens 42 to move downward and press it with the base 41, and finally the AA glue between the lens 42 and the base 41 is irradiated and fixed by the UV light source assembly 5.

[0045] A camera module hot pressing assembly method, using a positioning mechanism for hot pressing assembly of the camera module, the method comprising the following steps: S1: Place the base 41 to be assembled on the base 4, and evenly apply AA glue on the surface of the base 41; then start the driving assembly to drive multiple groups of upper pressing plates 20 to clamp and fix the lens 42 to be assembled, so that the lens 42 can move as a whole with the Y-axis moving base 13; S2: Then, the main assembly seat 12 and the lens 42 are transported as a whole to the top of the base 4 by the robot assembly 6, and the Y-axis moving seat 13 and the lens 42 are driven by the electric push cylinder 7 to move downward for a distance and then remain stationary; S3: Next, by turning on the No. 2 motor 37, and under the action of the pushing assembly and the driven assembly, the main pressing arm 34 is rotated upward by 90° and then remains stationary, so as to align and calibrate the main assembly seat 12; at the same time, the Y-axis moving seat 13 is forced to drive the lens 42 to move downward together with the base 41 for pressing; finally, the AA glue between the lens 42 and the base 41 is irradiated and fixed by the UV light source assembly 5.

[0046] Through the above method, the overall performance and reliability of the camera module can be improved.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning mechanism for hot pressing assembly of a camera module, comprising a lower box seat (1), an upper box body (2), and a working platform (3) arranged between the lower box seat (1) and the upper box body (2), wherein the working platform (3) is provided with a manipulator assembly (6) and a base (4) in sequence, and characterized in that: A base (41) is placed on the base (4), and a group of UV light source components (5) are arranged at four corners of the base (41). An electric push cylinder (7) is fixedly installed at the end of the manipulator component (6), and the piston rod of the electric push cylinder (7) extends outward and is fixedly connected to a Z-axis mounting block (8). The outer part of the Z-axis mounting block (8) is sleeved with an X-axis hanging seat (10), and the outer part of the X-axis hanging seat (10) is sleeved with a main assembly seat (12). A Y-axis moving seat (13) is slidably installed at the lower end of the main assembly seat (12), and the Y-axis moving seat (13) is driven by a driven component to move up and down in a straight line, and is used to push the lens (42) and the base (41) to dock and press tightly; four groups of upper pressing plates (20) distributed in a ring array are arranged on the Y-axis moving seat (13), and the multiple groups of upper pressing plates (20) are driven by a driving component and move radially synchronously, and are used to press or release the lens (42); The working platform (3) is symmetrically provided with four groups of pre-set grooves with respect to the base (4), each group of pre-set grooves is provided with a group of hinged seats (33), and the hinged seats (33) are provided with main pressure arms (34) for upper limit rotation. The multiple groups of main pressure arms (34) are driven by a pushing assembly and perform a 90° up and down turning movement, so as to calibrate and position the main assembly seat (12); the driven assembly is powered by the pushing assembly; and an auxiliary positioning assembly is also provided on the base (4) for calibrating and positioning the base (41).

2. A camera module hot pressing assembly positioning mechanism according to claim 1, characterized in that: The Z-axis mounting block (8) is slidably mounted in the X-axis hanging seat (10) in a limited position, and Z-axis balance springs (9) are fixedly arranged on both horizontal sides of the Z-axis mounting block (8); the X-axis hanging seat (10) is slidably mounted on the main assembly seat (12), and X-axis balance springs (11) are fixedly arranged on both front and rear sides of the X-axis hanging seat (10).

3. A camera module hot pressing assembly positioning mechanism according to claim 2, characterized in that: The top of the Y-axis moving seat (13) is provided with an outer edge protruding therefrom, and a Y-axis return spring (14) is fixedly provided at the lower end of the outer edge. A rectangular groove (1301) is provided at both left and right ends of the Y-axis moving seat (13). Both sides of the rectangular groove (1301) are provided with lateral inclined grooves (1302). A lateral push column (21) is inserted into the lateral inclined groove (1302). The lateral push column (21) is fixedly connected to a connecting plate (22). The connecting plate (22) is limitedly slidably installed in the main assembly seat (12), and one end of the connecting plate (22) away from the lateral push column (21) protrudes out of the main assembly seat (12) and is connected to the driven component.

4. A camera module hot pressing assembly positioning mechanism according to claim 3, characterized in that: The driven assembly comprises a transverse push plate (23), a driven seat (24), a cylindrical pin (26), a vertical push strip (27), a matching spring (28), an L-shaped push strip (29), a vertical rack (30) and a spur gear (31). The driven seat (24) and the L-shaped push strip (29) are both limitedly slidably mounted in the main pressure arm (34). One end of the transverse push plate (23) is fixedly connected to the driven seat (24). The other end of the transverse push plate (23) extends into the main assembly seat (12) and abuts against the lateral push column (21). The driven seat (24) is provided with a driving inclined groove (25) for accommodating the cylindrical pin (26). One end of the vertical push strip (27) is fixedly connected to the cylindrical pin (26). The other end of the vertical push strip (27) is fixedly connected to the L-shaped push strip (29). The matching spring (28) is fixedly arranged on the upper end surface of the L-shaped push strip (29).

5. A camera module hot pressing assembly positioning mechanism according to claim 4, characterized in that: The end of the main pressure arm (34) is rotatably mounted on the hinge seat (33) via the central shaft (32); a spur gear (31) is rotatably mounted in the hinge seat (33); the spur gear (31) is fixedly sleeved on the central shaft (32); the spur gear (31) is meshedly connected to the vertical rack (30); one end of the vertical rack (30) extends into the main pressure arm (34) and is abutted against the L-shaped push bar (29); the other end of the vertical rack (30) extends into the working platform (3) and is connected to the push assembly.

6. A camera module hot pressing assembly positioning mechanism according to claim 5, characterized in that: The pushing assembly comprises a connecting frame (35), a rotating screw rod (36) and a second motor (37); the connecting frame (35) is slidably mounted on the working platform (3) in a limited position; an inner screw hole for accommodating the rotating screw rod (36) is provided in the middle of the connecting frame (35); the end of the rotating screw rod (36) is fixedly connected to the output end of the second motor (37); and the lower end of the vertical rack (30) is fixedly connected to the connecting frame (35).

7. The camera module hot pressing assembly positioning mechanism according to claim 1, characterized in that: The Y-axis moving seat (13) is provided with a placement groove for accommodating a driving component. The driving component comprises a No. 1 motor (15), a rotating disk (16) and a toggle column (18). The output shaft of the No. 1 motor (15) is coaxially fixedly connected to the rotating disk (16). The rotating disk (16) is provided with four groups of arc grooves (17) distributed in a circular array. One end of the toggle column (18) is inserted into the arc groove (17), and the other end of the toggle column (18) is fixedly connected to the translation plate (19).

8. The camera module hot pressing assembly positioning mechanism according to claim 7, characterized in that: One end of the translation plate (19) is slidably mounted on the lower end surface of the Y-axis moving seat (13), and the other end of the translation plate (19) is fixedly connected to the upper pressing plate (20). A stop bar is protrudingly provided on the side wall of the upper pressing plate (20).

9. The camera module hot pressing assembly positioning mechanism according to claim 1, characterized in that: The auxiliary positioning assembly comprises a lower pressing plate (38), a limit block (39) and a resisting spring (40); the lower pressing plate (38) is slidably mounted on the base (4) in a limited manner; both ends of the side wall of the lower pressing plate (38) are fixedly connected to the limit block (39); and one end of the limit block (39) away from the base (41) is fixedly connected to the resisting spring (40).

10. A camera module hot pressing assembly method, using the camera module hot pressing assembly positioning mechanism according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: S1: placing the base (41) to be assembled on the base (4), and evenly coating the surface of the base (41) with AA glue; then starting the driving assembly to drive the plurality of upper pressing plates (20) to clamp and fix the lens (42) to be assembled, so that the lens (42) can move as a whole along the Y-axis moving seat (13); S2: Then, the main assembly seat (12) and the lens (42) are transported as a whole to the top of the base (4) by the robot assembly (6), and the Y-axis moving seat (13) and the lens (42) are driven by the electric push cylinder (7) to move downward for a certain distance and then remain stationary; S3: Next, by turning on the No. 2 motor (37), and under the action of the push assembly and the driven assembly, the main pressing arm (34) is rotated upward by 90° and then remains stationary, so as to perform centering calibration on the main assembly seat (12); at the same time, the Y-axis moving seat (13) is forced to drive the lens (42) to move downward together with the base (41) for pressing; finally, the AA glue between the lens (42) and the base (41) is irradiated and fixed by the UV light source assembly (5).

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