A CCD imaging system for fully automatic FOB bonding machine

Abstract

The present invention relates to the technical field of FOB bonding machines, and discloses a fully automatic FOB bonding machine CCD imaging system, including a CCD imaging device and a light source, wherein the CCD imaging device is used to capture and identify LCD reference points on an LCD liquid crystal display screen, and an FPC is pre-bound on the LCD liquid crystal display screen, and the light source is located directly above the LCD reference points, and is used to provide corresponding vertical illumination for the CCD imaging device to capture and identify the LCD reference points. The fully automatic FOB bonding machine CCD imaging system of the present invention changes the alignment imaging mode of the equipment, from the original imaging capture of the FPC reference points bound on the LCD to directly capturing the LCD reference points on the LCD, and adds a downward light source during equipment object recognition, so as to realize that the lens of the CCD camera can effectively capture and identify the fixed Mark points on the LCD, so as to solve the frequent alarm of the equipment, reduce the process defects and material consumption caused by the equipment, and improve the equipment utilization rate, stability and yield rate.

Description

Technical Field

[0001] The invention relates to the technical field of FOB bonding machines, and in particular to a CCD imaging system of a fully automatic FOB bonding machine. Background Art

[0002] PCB (Printed Circuit Board), Chinese name is printed circuit board, also known as printed circuit board, commonly known as "hard board", is an important electronic component, a support for electronic components, and a carrier for electrical connection of electronic components. FPC (Flexible Printed Circuit), Chinese name is flexible circuit board, also known as flexible circuit board, commonly known as "soft board", is a highly reliable and excellently flexible printed circuit board made of polyimide or polyester film as a substrate. FOB (FPC on Board) hot pressing technology is to bind PCB and FPC through a fully automatic hot pressing binding machine, or to bind PCB to an LCD (liquid crystal display) pre-bound with FPC, which is an indispensable key link in the production of LCD display modules.

[0003] The FOB hot press machines used by various factories generally use the CCD camera on the machine to obtain the alignment mark point (reference point) and image it on the display screen. When bonding the PCB board, the FPC reference point (FPC Mark point) on the FPC (FPC is bonded on the LCD display) is imaged and aligned (such as Figure 1 ), and with strong light from both sides. Since FPC is too soft and easy to bend and deform, and the mark point of the identification point needs to be refracted by strong light to form an image, bending and deformation, dirty and irregular mark points, and tilted light source refraction are prone to occur during the bonding process of PCB boards, resulting in frequent equipment alarms, which seriously affects equipment production efficiency and product quality. Summary of the invention

[0004] In order to solve the technical problem that the CCD imaging equipment in the prior art is easily disturbed by the factors of FPC bending deformation, Mark point dirtiness and irregularity, and light source refraction tilt when grabbing and identifying the FPC reference points bound to the LCD, thereby affecting the equipment production efficiency and product quality, the present invention provides a fully automatic FOB bonding machine CCD imaging system.

[0005] The present invention is implemented by the following technical scheme: A fully automatic FOB bonding machine CCD imaging system, comprising:

[0006] A CCD imaging device is used to capture and identify LCD reference points on an LCD display screen, to which an FPC is pre-bound; and

[0007] The light source is located directly above the LCD reference point and is used to provide corresponding vertical illumination for the CCD imaging device to capture and identify the LCD reference point.

[0008] As a further improvement of the above solution, the CCD imaging device comprises a CCD camera, a bracket and an adjusting device, wherein the CCD camera is supported on the bracket, and the adjusting device is arranged on the bracket for adjusting the image capture angle of the CCD camera.

[0009] As a further improvement of the above scheme, the adjusting device includes a horizontal arm fixed on the bracket, a vertical plate is vertically arranged on the horizontal arm, a base is arranged above the horizontal arm, one end of the base is rotatably connected to the vertical plate, a pad is arranged on the top of the base, the CCD camera is detachably installed on the top of the pad, and an adjusting mechanism for adjusting the image capture angle of the CCD camera is arranged on the vertical plate.

[0010] As a further improvement of the above scheme, the adjustment mechanism includes a fixed plate parallel to the vertical plate, the fixed plate is arranged on the horizontal arm located on one side of the vertical plate, a screw rod is rotatably installed between the fixed plate and the vertical plate, a moving block matching with the screw rod is sleeved on the outer side of the screw rod, a first connecting rod is rotatably connected to the moving block, and one end of the first connecting rod is rotatably connected to the bottom of the base away from the vertical plate.

[0011] As a further improvement of the above solution, a drive motor is installed on the fixed plate, and the output shaft of the drive motor passes through the fixed plate and is fixedly connected to one end of the screw rod.

[0012] As a further improvement of the above scheme, the adjusting device also includes a cleaning mechanism, and the cleaning structure includes a flexible scraper, a transmission assembly and a driven assembly. A accommodating groove capable of accommodating the flexible scraper is provided on the top of the pad block. A hinge shaft is rotatably inserted into the base close to one end of the vertical plate, and the base is hinged to the vertical plate through the hinge shaft. The driven assembly and the transmission assembly are both arranged on the base, the driven assembly is driven by the hinge shaft, the input end of the transmission assembly is driven by the driven assembly, and the output end is used to drive the flexible scraper to reciprocate relative to the lens of the CCD camera.

[0013] As a further improvement of the above scheme, the driven component includes a first gear sleeved and fixed on the hinge shaft and a first synchronization shaft rotatably arranged on the base, and a second gear meshing with the first gear is sleeved and fixed on the first synchronization shaft, and the number of teeth of the first gear is greater than the number of teeth of the second gear.

[0014] As a further improvement of the above scheme, the transmission assembly includes a disc body sleeved and fixed on the first synchronous shaft and a third connecting rod radially fixed on the first synchronous shaft, an arc-shaped pressure plate concentric with the first synchronous shaft is fixed at one end of the third connecting rod, and an arc-shaped rack is arranged on the disc surface of the disc body located on the centrifugal side of the arc-shaped pressure plate;

[0015] A reel is elastically inserted vertically on the base, a synchronous block is sleeved and fixed on the reel and rotated synchronously with the reel, a shaft seat is fixed on the side of the synchronous block away from the base, a bearing is installed in the shaft seat, a fourth connecting rod perpendicular to the reel is clamped and fixed on the inner ring of the bearing, a pressure-bearing ball that contacts and extrudes with the arc-shaped pressure plate is fixed at one end of the fourth connecting rod, a third gear that matches with the arc-shaped rack is sleeved and fixed on the outer side of the fourth connecting rod, and a first bevel tooth is sleeved and fixed on the other end of the fourth connecting rod, a second synchronous shaft parallel to the hinge shaft is rotatably inserted on the base, and a cam and a second bevel tooth that matches with the first bevel tooth are sleeved and fixed on the second synchronous shaft respectively;

[0016] A second connecting rod is movably inserted at the bottom of the cushion block, one end of which extends into the receiving groove and is connected to the bottom of the flexible scraper, and the other end of which extends into the base and is equipped with a pressure wheel that matches the cam;

[0017] Wherein, when the pressure-bearing ball is not under pressure, the arc-shaped rack and the third gear are in a separated state, and the first bevel gear and the second bevel gear are in a separated state.

[0018] As a further improvement of the above scheme, a sliding groove connected to the accommodating groove is provided at the bottom of the cushion block, a slider is slidably connected in the sliding groove, the slider is sleeved and fixed on the outside of the second connecting rod, a spring is sleeved on the outside of the second connecting rod, and two sides of the spring are respectively fixed to the top of the slider and the corresponding groove wall of the sliding groove, and when the cam does not touch the pressure wheel, the spring is in a non-deformed state.

[0019] As a further improvement of the above scheme, two opposite ear seats are fixed on the base, and the opposite sides of the two ear seats have ear holes. The two ends of the reel are respectively rotatably inserted into the two ear holes, and the end of the reel is connected to the inner wall of the ear hole through a coil spring. When the arc-shaped pressure plate does not touch the pressure ball, the coil spring is in a non-deformed state.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The CCD imaging system of the fully automatic FOB bonding machine of the present invention changes the alignment imaging mode of the equipment, from the original imaging capture of the FPC reference points bound on the LCD to directly capturing the LCD reference points on the LCD, and adds a downward light source during equipment object recognition to enable the CCD camera lens to effectively capture and identify the fixed Mark points on the LCD, so as to solve the problem of frequent equipment alarms, reduce process defects and material loss caused by the equipment, and improve the equipment utilization rate, stability and yield rate.

[0022] The CCD imaging system of the fully automatic FOB bonding machine of the present invention can easily adjust the image capture angle of the CCD camera through the adjustment device to ensure accurate and stable capture of LCD reference points 2B at different positions, and can make the shooting angle of the CCD camera always align with the position in the direction of the LCD reference point 2B at the position to ensure the subsequent effective identification of the LCD reference point 2B.

[0023] The fully automatic FOB bonding machine CCD imaging system of the present invention, through the adjustment device and the cleaning mechanism in the adjustment device, can automatically realize the reciprocating scraping of dust and dirt attached to the lens by the flexible scraper whenever the image capture angle of the CCD camera is adjusted, so as to ensure the capture and recognition accuracy of the CCD camera 9. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the top view structure of the FOB bonding machine during CCD imaging in the prior art;

[0025] Figure 2 A schematic diagram of the top view of the CCD imaging system of the fully automatic FOB bonding machine provided by the present invention;

[0026] Figure 3 for Figure 1 A schematic diagram of the structure in which the CCD image device is in a horizontal state;

[0027] Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure of a CCD imaging device;

[0028] Figure 5 for Figure 3 A schematic diagram of the top view of the structure of the middle base and the vertical plate;

[0029] Figure 6 for Figure 4 The cross-sectional structure diagram of the CCD camera installed on the base and the pad;

[0030] Figure 7 for Figure 6 A schematic diagram of the structure of the driven component and part of the transmission component in a top view when they are not in a mating state;

[0031] Figure 8 for Figure 6 Schematic diagram of the cross-sectional structure of the flexible scraper and part of the transmission components on the pad;

[0032] Fig. 9 for Figure 4 A schematic diagram of the cross-sectional structure of the CCD image device in a tilted state;

[0033] Fig.10 for Fig. 9 Schematic diagram of the top view of the driven component and part of the transmission component in the unmatched state.

[0034] Description of main symbols:

[0035] 1. LCD display screen; 2A. FPC reference point; 2B. LCD reference point; 3. FPC; 4. CCD imaging device; 5. Light source; 6. Vertical plate; 7. Base; 8. Pad; 9. CCD camera; 10. Hinge shaft; 11. Screw rod; 12. Moving block; 13. First connecting rod; 14. Driving motor; 15. Slide groove; 16. Sliding block; 17. Second connecting rod; 18. Accommodating groove; 19. Flexible scraper; 20. First gear; 21. First synchronous shaft; 22. Third connecting rod; 23. Arc pressure plate; 24. Disk; 25. Arc rack; 26. Scroll; 27. Synchronous block; 28. Shaft seat; 29. ​​Fourth connecting rod; 30. Third gear; 31. Pressure ball; 32. Second bevel gear; 33. Cam; 34. Pressure wheel; 35. Second gear; 36. First bevel gear; 37. Second synchronous shaft. DETAILED DESCRIPTION

[0036] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0037] Example 1

[0038] Please combine Figures 2 to 3 The fully automatic FOB bonding machine CCD imaging system includes a CCD imaging device 4 and a light source 5. The CCD imaging device 4 is used to capture and identify an LCD reference point 2B on an LCD display screen 1, and an FPC 3 is pre-bound on the LCD display screen 1. The light source 5 is located directly above the LCD reference point 2B and is used to provide corresponding vertical illumination for the CCD imaging device 4 to capture and identify the LCD reference point 2B.

[0039] In order to reduce material consumption, improve production efficiency and utilization rate, the alignment imaging mode of the equipment is changed from the original imaging capture of FPC3 (FPC3 is pre-bonded on the LCD liquid crystal display screen 1) to capture of LCD reference point 2B (LCD Mark point). When the equipment recognizes the object, a downward light source 5 is added to enable the lens of the CCD camera 9 to capture and identify the LCD reference point 2B, thereby completely solving the problem of frequent equipment alarms, reducing the problem of poor process caused by the equipment, and improving the equipment utilization rate, stability and yield.

[0040] The CCD imaging device 4 includes a CCD camera 9, a bracket (not shown) and an adjusting device, and the CCD camera 9 is supported on the bracket. The CCD camera 9 is the abbreviation of a charge coupled device, which can convert light into electric charges and store and transfer the electric charges, and can also take out the stored electric charges to change the voltage. Therefore, it is an ideal CCD camera component. The CCD camera composed of it has the characteristics of small size, light weight, unaffected by magnetic fields, and anti-vibration and impact, and is widely used.

[0041] The CCD camera 9 in this embodiment is used to capture and identify the LCD reference point 2B on the LCD display screen 1. The CCD camera 9 can transmit the captured image information of the LCD reference point 2B on the LCD display screen 1 to the display screen with a processor at the back end for corresponding information processing and imaging, so as to realize the recognition and positioning of the LCD reference point 2B. The CCD camera 9 can be installed on the pad 8 by screws, and ensure that the shooting angle of the CCD camera 9 is aligned with the direction of the LCD reference point 2B.

[0042] The adjustment device is arranged on the bracket (not marked) and is used to adjust the image capture angle of the CCD camera 9 to ensure that when capturing LCD reference points 2B at different positions, the shooting angle of the CCD camera 9 can always be aligned with the position in the direction of the LCD reference point 2B at that position to ensure the subsequent recognition of the LCD reference point 2B.

[0043] The adjustment device includes a cross arm (not shown) fixed on the bracket, a vertical plate 6 is vertically arranged on the cross arm, a base 7 is arranged above the cross arm, one end of the base 7 is rotatably connected to the vertical plate 6, so that one end of the base 7 can rotate relatively around the vertical plate 6, thereby changing the inclination angle of the base 7. A cushion block 8 is arranged on the top of the base 7, and the cushion block 8 and the base 7 can be integrally formed. The CCD camera 9 is detachably mounted on the top of the cushion block 8, and the CCD camera 9 can be mounted on the cushion block 8 by screws. The vertical plate 6 is provided with an adjustment mechanism for adjusting the image capture angle of the CCD camera 9.

[0044] The adjustment mechanism includes a fixed plate (not shown) parallel to the vertical plate 6, the fixed plate is arranged on a horizontal arm located on one side of the vertical plate 6, a screw rod 11 is rotatably installed between the fixed plate and the vertical plate 6, and the two ends of the screw rod 11 are rotatably inserted on the opposite side walls of the vertical plate 6 and the fixed plate. A moving block 12 matching with the screw rod 11 is sleeved on the outer side of the screw rod 11, and a first connecting rod 13 is rotatably connected to the moving block 12, and one end of the first connecting rod 13 is rotatably connected to the bottom of the base 7 away from the vertical plate 6.

[0045] In this embodiment, when the screw rod 11 rotates, the movable block 12 can be threadedly engaged with it, and under the limiting action of the first connecting rod 13, the movable block 12 can move axially in the screw rod 11 and act on the first connecting rod 13 to change the inclination of the first connecting rod 13, thereby changing the inclination of the base 7, the cushion block 8 and the CCD camera 9.

[0046] A driving motor 14 is mounted on the fixed plate, and an output shaft of the driving motor 14 penetrates the fixed plate and is fixedly connected to one end of the screw rod 11. By controlling the output shaft of the driving motor 14 to rotate, the screw rod 11 can be automatically driven to rotate accordingly, which is convenient and quick.

[0047] Example 2

[0048] Please combine Figures 4 to 10 , this embodiment 2 is an improved solution of embodiment 1. In order to improve the clarity of the image captured by the CCD camera 9, this embodiment can automatically clean the lens of the CCD camera 9 every time the angle of the CCD camera 9 is adjusted, remove dust and dirt attached to the lens, and ensure the accuracy of capture and recognition. The specific solution is as follows:

[0049] The adjusting device also includes a cleaning mechanism, which includes a flexible scraper 19, a transmission assembly and a driven assembly. The flexible scraper 19 is an upright sheet structure, and the side facing the lens is a flexible scraping surface that matches the lens lens, and the other side is a mounting surface made of hard material.

[0050] A receiving groove 18 capable of accommodating the flexible scraper 19 is provided on the top of the pad 8, so that when the lens is not cleaned, the flexible scraper 19 can be completely accommodated in the receiving groove to prevent the flexible scraper 19 from interfering with the CCD camera 9's grasping and identifying operation of the LCD reference point 2B.

[0051] A hinge shaft 10 is rotatably inserted at one end of the base 7 close to the vertical plate 6, and the base 7 is hinged to the vertical plate 6 through the hinge shaft 10. In this embodiment, both ends of the hinge shaft 10 are fixed in a preset support seat (not shown) on the top of the vertical plate 6, so that the base 7 can rotate relative to the hinge shaft 10.

[0052] The driven component and the transmission component are both arranged on the base 7. The driven component is driven by the hinge shaft 10. The input end of the transmission component is driven by the driven component. The output end is used to drive the flexible scraper 19 to move back and forth relative to the lens of the CCD camera 9 to achieve effective cleaning of the lens.

[0053] The driven assembly includes a first gear 20 sleeved and fixed on the hinge shaft 10 and a first synchronizing shaft 21 rotatably arranged on the base 7. In this embodiment, since the first gear 20 is fixed on the hinge shaft 10, the first gear 20 is a fixed gear that does not move. A second gear 35 meshing with the first gear 20 is sleeved and fixed on the first synchronizing shaft 21, so that the base 7 rotates around the hinge shaft 10, and the second gear 35 can be rotated by meshing circumferentially around the first gear 20.

[0054] Since the number of teeth of the first gear 20 is greater than the number of teeth of the second gear 35, if the second gear 35 rotates a quarter of a circle along the outer circumference of the first gear 20, the second gear 35 will actually rotate multiple circles (the number of circles can be selected according to actual needs by selecting the first gear 20 and the second gear 35 with the corresponding number of teeth), so as to ultimately complete multiple cleanings for the lens during the angle adjustment process.

[0055] The transmission assembly includes a disc 24 sleeved and fixed on the first synchronization shaft 21 and a third connecting rod 22 radially fixed on the first synchronization shaft 21, and the third connecting rod 22 is located between the disc 24 and the second gear 35. In this embodiment, the second gear 35, the third connecting rod 22, and the disc 24 rotate synchronously through the first synchronization shaft 21.

[0056] An arc-shaped pressure plate 23 concentric with the first synchronous shaft 21 is fixed to one end of the third connecting rod 22 , and an arc-shaped rack 25 is provided on the disk surface of the disk body 24 located on the centrifugal side of the arc-shaped pressure plate 23 .

[0057] A reel 26 is elastically inserted vertically on the base 7, and a synchronous block 27 is sleeved and fixed on the reel 26 to rotate synchronously with it. Two opposite ear seats (not shown) are fixed on the base 7, and the opposite sides of the two ear seats have ear holes (not shown in the figure). The two ends of the reel 26 are respectively inserted and rotated in the two ear holes, and the end of the reel 26 is connected to the inner wall of the ear hole through a coil spring (not shown in the figure). When the arc-shaped pressure plate 23 does not contact the pressure-bearing ball 31, the coil spring is in a non-deformed state.

[0058] A shaft seat 28 is fixed to the side of the synchronization block 27 away from the base 7. A bearing (not shown) is installed in the shaft seat 28. A fourth connecting rod 29 perpendicular to the reel 26 is fixed to the inner ring of the bearing, so that the fourth connecting rod 29 can rotate relative to the shaft seat 28.

[0059] A pressure-bearing ball 31 that is in contact and extrusion fit with the arc-shaped pressure plate 23 is fixed at one end of the fourth connecting rod 29, a third gear 30 that matches with the arc-shaped rack 25 is sleeved and fixed on the outer side of the fourth connecting rod 29, a first bevel gear 36 is sleeved and fixed on the other end of the fourth connecting rod 29, and a second synchronous shaft 37 parallel to the hinge shaft 10 is rotatably inserted on the base 7, and a cam 33 and a second bevel gear 32 that matches with the first bevel gear 36 are respectively sleeved and fixed on the second synchronous shaft 37.

[0060] This embodiment provides that: when the pressure-bearing ball 31 is not under pressure, the arc-shaped rack 25 and the third gear 30 are in a separated state, and the first bevel gear 36 and the second bevel gear 32 are in a separated state, that is, when the angle of the CCD camera 9 is not adjusted, the distance between the pressure-bearing ball 31 and the base 7 is much larger than the distance between the first bevel gear 36 and the base 7, and the fourth connecting rod 29 as a whole is tilted with one end of the pressure-bearing ball 31 on it deviating from the base 7. When the arc-shaped pressure plate 23 contacts the pressure-bearing ball 31, it forces the pressure-bearing ball 31 to move toward the base 7, so that the fourth connecting rod 29 drives the shaft seat 28, the synchronous block 27 and the reel 26 to rotate synchronously (during which the reel spring is elastically deformed), and the third gear 30 moves to a position where it can mesh with the arc-shaped rack 25 that is about to rotate, and the first bevel gear 36 rotates to a position where it meshes with the second bevel gear 32, thereby realizing the rotation transmission of the second synchronous shaft 37 and the cam 33.

[0061] A second connecting rod 17 is movably inserted at the bottom of the pad block, one end of which extends into the receiving groove and is connected to the bottom of the flexible scraper 19, and the other end extends into the base 7 and is installed with a pressure wheel 34 that cooperates with the cam 33. In this embodiment, the end of the second connecting rod 17 extending into the receiving groove is fixedly connected to the mounting surface of the flexible scraper 19 to drive the flexible scraper 19 to move relative to the lens.

[0062] Furthermore, a slide groove 15 connected to the accommodating groove is opened at the bottom of the cushion block 8, and a slider 16 is slidably connected in the slide groove. The slider is sleeved and fixed on the outside of the second connecting rod 17. A spring (not marked) is sleeved on the outside of the second connecting rod 17. Both sides of the spring are respectively fixed to the top of the slider and the corresponding groove wall of the slide groove. When the cam 33 does not touch the pressure wheel 34, the spring is in a non-deformed state. When the pressure wheel 34 is not subjected to force, the flexible scraper 19 is always received in the accommodating groove to avoid interfering with the operation of the CCD camera 9.

[0063] The working principle of this embodiment is specifically as follows:

[0064] Each time the CCD camera 9 is adjusted to capture and identify the angle, the base 7 will rotate relative to the hinge shaft 10, so that the second gear 35 is meshed circumferentially around the first gear 20 and rotates for several circles.

[0065] During the weekly rotation of the second gear 35, it can drive the arc pressure plate 23 and the arc rack 25 to rotate synchronously through the first synchronization shaft 21. The arc pressure plate 23 will first rotate to contact the pressure-bearing ball 31 to move it toward the base 7, forcing the fourth connecting rod 29, the shaft seat 28, the synchronization block 27, and the reel 26 to deflect as a whole (the coil spring is deformed), so that the third gear 30 is deflected to a position where it can engage with the arc rack 25, and the first bevel tooth 36 is deflected to engage with the second bevel tooth 32. When the arc rack 25 rotates to the third gear 30, it will engage with the third gear 30 and drive the third gear 30 to rotate. The third gear 30 rotates synchronously through the fourth connecting rod 29, the first bevel tooth 36, the second bevel tooth 32, the second synchronization shaft 37, and the cam 33. When the arc-shaped pressure plate 23 rotates away from the pressure-bearing ball 31, the pressure-bearing ball 31 is no longer under pressure, and the reel 26 will drive the synchronization block 27, the shaft seat 28, the fourth connecting rod 29, and the pressure-bearing ball 31 to synchronously reset and deflect under the action of the elastic force of the coil spring (the pressure-bearing ball 31 will move away from the base 7 until it returns to its initial position). During this period, the third gear 30 will reset and can no longer mesh with the arc-shaped rack 25, and the first bevel tooth 36 will also reset and can no longer mesh with the second bevel tooth 32, so that the second bevel tooth 32, the second synchronization shaft 37, and the cam 33 will no longer rotate, and the cam 33 will no longer squeeze the pressure wheel 34, so that the flexible scraper 19 is always completely received in the accommodating groove to avoid interfering with the operation of the CCD camera 9.

[0066] This ensures that whenever the CCD camera 9 is adjusted, the cam 33 is driven to rotate circumferentially. When the convex end of the cam 33 rotates to the pressure wheel 34, it squeezes the pressure wheel 34, so that the pressure wheel 34 drives the second connecting rod 17, the slider and the flexible scraper 19 to move upward (spring compression). When the cam 33 is separated from the pressure wheel 34, the slider drives the second connecting rod 17, the pressure wheel 34 and the flexible scraper 19 to move downward under the action of the spring elastic force. With the circumferential rotation of the cam 33, the flexible scraper 19 can be reciprocated relative to the lens, thereby automatically cleaning the dirt on the lens whenever the angle of the CCD camera 9 is adjusted, thereby ensuring the capture and recognition accuracy of the CCD camera 9.

[0067] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A fully automatic FOB bonding machine CCD imaging system, characterized in that: include: A CCD imaging device is used to capture and identify LCD reference points on an LCD display screen, to which an FPC is pre-bound; and The light source is located directly above the LCD reference point and is used to provide corresponding vertical illumination for the CCD image device to capture and identify the LCD reference point.

2. The fully automatic FOB bonding machine CCD imaging system as claimed in claim 1, characterized in that: The CCD imaging device comprises a CCD camera, a bracket and an adjusting device. The CCD camera is supported on the bracket. The adjusting device is arranged on the bracket and is used for adjusting the image capturing angle of the CCD camera.

3. The fully automatic FOB bonding machine CCD imaging system as claimed in claim 2, characterized in that: The adjustment device includes a horizontal arm fixed on the bracket, a vertical plate is vertically arranged on the horizontal arm, a base is arranged above the horizontal arm, one end of the base is rotatably connected to the vertical plate, a pad is arranged on the top of the base, the CCD camera is detachably installed on the top of the pad, and an adjustment mechanism for adjusting the image capture angle of the CCD camera is arranged on the vertical plate.

4. The fully automatic FOB bonding machine CCD imaging system as claimed in claim 3, characterized in that: The adjustment mechanism includes a fixed plate parallel to the vertical plate, the fixed plate is arranged on the horizontal arm located on one side of the vertical plate, a screw rod is rotatably installed between the fixed plate and the vertical plate, a moving block matching with the screw rod is sleeved on the outer side of the screw rod, a first connecting rod is rotatably connected to the moving block, and one end of the first connecting rod is rotatably connected to the bottom of the base away from the vertical plate.

5. The fully automatic FOB bonding machine CCD imaging system as claimed in claim 4, characterized in that: A driving motor is installed on the fixing plate, and an output shaft of the driving motor passes through the fixing plate and is fixedly connected to one end of the screw rod.

6. The fully automatic FOB bonding machine CCD imaging system as claimed in claim 5, characterized in that: The adjusting device also includes a cleaning mechanism, and the cleaning structure includes a flexible scraper, a transmission assembly and a driven assembly. A accommodating groove capable of accommodating the flexible scraper is provided on the top of the pad block. A hinge shaft is rotatably inserted into the base close to one end of the vertical plate, and the base is hinged to the vertical plate through the hinge shaft. The driven assembly and the transmission assembly are both arranged on the base, the driven assembly is driven by the hinge shaft, the input end of the transmission assembly is driven by the driven assembly, and the output end is used to drive the flexible scraper to reciprocate relative to the lens of the CCD camera.

7. The fully automatic FOB bonding machine CCD imaging system as claimed in claim 6, characterized in that: The driven assembly includes a first gear sleeved and fixed on the hinge shaft and a first synchronization shaft rotatably arranged on the base, a second gear meshing with the first gear sleeved and fixed on the first synchronization shaft, and the number of teeth of the first gear is greater than that of the second gear.

8. The fully automatic FOB bonding machine CCD imaging system as claimed in claim 7, characterized in that: The transmission assembly includes a disc body sleeved and fixed on the first synchronous shaft and a third connecting rod radially fixed on the first synchronous shaft, an arc-shaped pressure plate concentric with the first synchronous shaft is fixed at one end of the third connecting rod, and an arc-shaped rack is arranged on the disc surface of the disc body located on the centrifugal side of the arc-shaped pressure plate; A reel is elastically inserted vertically on the base, a synchronous block is sleeved and fixed on the reel and rotated synchronously with the reel, a shaft seat is fixed on the side of the synchronous block away from the base, a bearing is installed in the shaft seat, a fourth connecting rod perpendicular to the reel is clamped and fixed on the inner ring of the bearing, a pressure-bearing ball that contacts and extrudes with the arc-shaped pressure plate is fixed at one end of the fourth connecting rod, a third gear that matches with the arc-shaped rack is sleeved and fixed on the outer side of the fourth connecting rod, and a first bevel tooth is sleeved and fixed on the other end of the fourth connecting rod, a second synchronous shaft parallel to the hinge shaft is rotatably inserted on the base, and a cam and a second bevel tooth that matches with the first bevel tooth are sleeved and fixed on the second synchronous shaft respectively; A second connecting rod is movably inserted at the bottom of the cushion block, one end of which extends into the receiving groove and is connected to the bottom of the flexible scraper, and the other end of which extends into the base and is equipped with a pressure wheel that matches the cam; Wherein, when the pressure-bearing ball is not under pressure, the arc-shaped rack and the third gear are in a separated state, and the first bevel gear and the second bevel gear are in a separated state.

9. The fully automatic FOB bonding machine CCD imaging system as claimed in claim 8, characterized in that: A sliding groove connected to the accommodating groove is provided at the bottom of the cushion block, a sliding block is slidably connected in the sliding groove, the sliding block is sleeved and fixed on the outer side of the second connecting rod, a spring is sleeved on the outer side of the second connecting rod, and two sides of the spring are respectively fixed to the top of the sliding block and the corresponding groove wall of the sliding groove, when the cam does not touch the pressure wheel, the spring is in a non-deformed state.

10. The fully automatic FOB bonding machine CCD imaging system as claimed in claim 8, characterized in that: Two opposite ear seats are fixed on the base, and the opposite sides of the two ear seats are provided with ear holes. The two ends of the reel are respectively rotatably inserted into the two ear holes, and the end of the reel is connected to the inner hole wall of the ear hole through a coil spring. When the arc-shaped pressure plate does not touch the pressure-bearing ball, the coil spring is in a non-deformed state.

Images