A PSA attaching apparatus for a circuit board

Abstract

The application discloses a PSA attaching device for a circuit board, which comprises a rack, a mounting plate arranged on the rack, a pressure maintaining carrier, a flow channel assembly, a jacking assembly and a suction assembly arranged on the rack. The suction assembly comprises a suction plate for sucking PSA and a suction servo motor for adjusting the position of the suction plate relative to the PSA, and the suction plate is connected with the suction servo motor. A first detection device is arranged on the rack and used for detecting the position of the PSA to be attached. A second detection device is arranged on the rack and used for detecting the position of the PSA sucked by the suction plate. A third detection device is arranged on the rack and used for detecting the position of the circuit board in the bearing groove. In the above manner, the PSA can be stably and accurately attached to the circuit board, and the working efficiency and the attachment yield of the PSA are improved.

Description

Technical Field

[0001] This invention relates to the field of circuit board mounting, and in particular to a PSA mounting device for circuit boards. Background Technology

[0002] During the manufacturing process of circuit boards, a layer of PSA (pressure-sensitive adhesive) film is usually applied before the circuit board is installed. This film is used for dust prevention, oxidation prevention, and static electricity prevention. It mainly plays a protective role and facilitates the subsequent assembly or fixing of the circuit board.

[0003] Currently, the process of attaching PSAs to circuit boards is mainly achieved manually. First, the circuit board to which the PSA needs to be attached is placed in a fixture, and then the PSA is manually attached to the surface of the circuit board through the fixture. However, this manual attachment method leads to poor adhesion between the PSA and the circuit board. For some slender circuit boards, manual attachment can easily result in bending or attachment beyond the outer edge of the circuit board, thus affecting the product yield or even causing product scrap. In addition, the manual attachment method has low work efficiency. Summary of the Invention

[0004] The main technical problem solved by this invention is to provide a PSA bonding device for circuit boards, which can stably and accurately bond PSAs onto circuit boards, thereby improving the efficiency and yield of PSA bonding.

[0005] To solve the above-mentioned technical problems, one technical solution adopted by the present invention is: to provide a PSA mounting device for circuit boards, comprising: a frame, on which a mounting plate is disposed;

[0006] Pressure holding carrier is used to support the circuit board to be processed. The pressure holding carrier has a support groove that matches the circuit board.

[0007] The flow channel assembly, mounted on the mounting plate, is used to guide the pressure-holding carrier into the frame. The flow channel assembly includes a left limiting plate and a right limiting plate, which are used to support the pressure-holding carrier.

[0008] The lifting assembly is located below the pressure holding carrier and is used to lift the pressure holding carrier in the flow channel assembly; the suction assembly is located on the frame and includes a suction plate for suctioning the PSA and a suction servo motor for adjusting the position of the suction plate relative to the PSA, and the suction plate is connected to the suction servo motor.

[0009] The first detection device is used to detect the position of the PSA to be attached, and the first detection device is mounted on the frame; the second detection device is used to detect the position of the PSA adsorbed by the suction plate, and the second detection device is mounted on the frame.

[0010] The third detection device is used to detect the position of the circuit board in the bearing groove. The third detection device is set on the frame.

[0011] Preferably, the support groove is provided with an adsorption hole, and the lifting assembly includes a lifting cylinder and a lifting adsorption plate connected to the lifting cylinder. The lifting adsorption plate is provided with a lifting adsorption positioning block that cooperates with the support groove, and the lifting adsorption positioning block is provided with a lifting adsorption head for adsorbing the circuit board.

[0012] Preferably, the lifting adsorption positioning block includes a first positioning part and a second positioning part, the pressure holding carrier includes a carrier plate, the bearing groove is disposed on the carrier plate, the first positioning part abuts against the lower side of the carrier plate, the second positioning part cooperates with the adsorption hole, and the lifting adsorption head is disposed on the second positioning part.

[0013] Preferably, the flow channel assembly includes a track support block disposed on the left and right limiting plates for supporting the position of the pressure-holding carrier. A support block blocking strip extends upward on one side of the track support block. Flow channel pressure strips are disposed on the left and right limiting plates for restricting the position of the pressure-holding carrier. A gap is left between the flow channel pressure strips and the pressure-holding carrier.

[0014] Preferably, the suction servo motor is connected to a second suction fixing plate, a side slider is connected to the second suction fixing plate, an elastic plate is provided on the side slider, an elastic element is provided between the second suction fixing plate and the elastic plate, and the suction plate is located at the end of the elastic plate away from the elastic element.

[0015] Preferably, the width adjustment assembly includes an adjustment slide rail mounted on the mounting plate, an adjustment slider that slides and cooperates with the adjustment slide rail, and an adjustment connecting plate mounted on the adjustment slider. The adjustment connecting plate is connected to the corresponding left or right limit plate. Adjustment support plates are provided at both ends of the adjustment slide rail. Adjustment rods are fixedly connected to the adjustment support plates. Locking sleeves are provided on the adjustment rods and are connected to the adjustment connecting plates.

[0016] Preferably, the mounting plate is provided with a first linear motor module and a second linear motor module, the first linear motor module and the second linear motor module are connected to a suction support frame, the suction support frame is provided with a transverse linear motor module, the transverse linear motor module is provided with a longitudinal linear motor module, and the suction component is provided on the longitudinal linear motor module.

[0017] Preferably, a feeding device is provided on the frame, and a first inspection area for placing the PSA to be attached is provided on one side of the feeding device. The first inspection device includes a first CCD vision inspection camera and a first fixed bracket arranged facing the first inspection area. The first CCD vision inspection camera is mounted on the first fixed bracket, and the first fixed bracket is mounted on the frame.

[0018] Preferably, the second detection device includes a second CCD visual inspection camera and a second fixed bracket. The second CCD visual inspection camera is mounted on the second fixed bracket, which is mounted on a mounting plate. The second CCD visual inspection camera is positioned between the first detection area and the flow channel assembly.

[0019] Preferably, a top inspection bracket is provided on the frame, and the third inspection device includes a third CCD vision inspection camera and a third fixed bracket that are positioned facing the pressure-holding carrier. The third CCD vision inspection camera is mounted on the third fixed bracket, and the third fixed bracket is mounted on the top inspection bracket.

[0020] The beneficial effects of this invention are as follows: the circuit board to be attached with a PSA is carried into the flow channel assembly by the pressure-holding carrier, and then into the frame. The position of the pressure-holding carrier is controlled by the cooperation of the flow channel assembly and the lifting assembly. The position of the PSA to be attached is detected by the first detection device, which facilitates the adsorption assembly to adsorb the PSA. The position of the circuit board is accurately determined by the third detection device, and the position of the adsorbed PSA is corrected by the second detection device. Thus, the adsorption assembly places the PSA on the circuit board, and the PSA is adsorbed onto the circuit board. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a PSA mounting device for a circuit board according to the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of a PSA mounting device for a circuit board after the frame is removed, according to the present invention.

[0023] Figure 3 This is a schematic diagram of the pressure-holding carrier of a PSA mounting device for a circuit board according to the present invention;

[0024] Figure 4 This is a schematic diagram of the flow channel assembly and width adjustment assembly of a PSA mounting device for a circuit board according to the present invention.

[0025] Figure 5 This is a schematic diagram of the track support block of a PSA mounting device for a circuit board according to the present invention.

[0026] Figure 6 This is a schematic diagram of the flow channel pressure strip of a PSA mounting device for a circuit board according to the present invention;

[0027] Figure 7 This is a schematic diagram of the lifting assembly of a PSA mounting device for a circuit board according to the present invention;

[0028] Figure 8 This is a schematic diagram of the lifting adsorption plate of a PSA bonding device for a circuit board according to the present invention;

[0029] Figure 9 yes Figure 8 Enlarged diagram of section A in the middle;

[0030] Figure 10 This is a schematic diagram of the first detection area position of a PSA bonding device for a circuit board according to the present invention;

[0031] Figure 11 This is a schematic diagram of the suction component of a PSA bonding device for a circuit board according to the present invention;

[0032] Figure 12 This is a schematic diagram of the structure of the suction plate of the PSA bonding device for a circuit board according to the present invention;

[0033] The components in the attached diagram are labeled as follows:

[0034] 1. Flow channel assembly; 11. Left limiting plate; 12. Right limiting plate; 13. Conveyor wheel; 14. Track support block; 141. Support block blocking strip; 15. Flow channel drive component; 16. Flow channel pressure strip; 161. Blocking part; 2. Pressure holding carrier; 21. Carrier plate; 22. Bearing groove; 221. Adsorption hole; 3. Width adjustment assembly; 31. Adjusting slide rail; 32. Adjusting slider; 321. Adjusting connecting plate; 33. Adjusting support plate; 34. Adjusting slide rod; 35. Locking sleeve; 4. Lifting assembly; 41. Lifting cylinder; 42. Lifting guide column; 43. Lifting guide sleeve; 44. Lifting base plate; 441. Lifting limiting cylinder; 442. Lifting limiting block; 45. Lifting adsorption plate; 451. Lifting adsorption positioning block; 45 11. First positioning part; 4512. Second positioning part; 45121. Lifting suction head; 5. First detection device; 51. First CCD vision inspection camera; 52. First fixed bracket; 61. First linear motor module; 62. Second linear motor module; 63. Suction support frame; 631. Horizontal linear motor module; 632. Vertical linear motor module; 633. Vertical support frame; 7. Suction assembly; 71. Suction plate; 711. Connecting part; 712. Suction part; 7121. Air hole; 72. Suction servo motor; 73. Suction reducer; 74. Coupling; 741. Intermediate fixed block; 7411. Rotation position marker; 7412. Proximity sensor; 75. First fixed plate for suction;

[0035] 751. Suction of the second fixed plate; 752. Suction of the side plate; 753. Side slider; 7531. Elastic plate; 7532. Elastic element; 754. Suction plate; 8. Second detection device; 81. Second CCD vision inspection camera; 82. Second fixed bracket; 9. Top detection bracket; 91. Third detection device; 911. Third CCD vision inspection camera; 912. Third fixed bracket; 92. Frame; 921. Mounting plate; 93. Feeding device; 94. First detection area. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0037] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0038] Example:

[0039] refer to Figures 1-3 A PSA bonding apparatus for a circuit board includes a frame 92 and a pressure carrier 2. A mounting plate 921 is bolted to the frame 92. The mounting plate 921 is provided with a flow channel assembly 1 for guiding the pressure carrier 2 into the frame 92. The pressure carrier 2 is used to carry the circuit board for which PSA bonding is required.

[0040] refer to Figures 2-4The flow channel assembly 1 includes a left limiting plate 11 and a right limiting plate 12, with a certain distance between them. A track support block 14 is bolted to one side of each of the left and right limiting plates 11 and 12, thus supporting the position of the pressure-holding carrier 2 on the left and right limiting plates 11 and 12. The pressure-holding carrier 2 rests on the track support blocks 14 on the left and right limiting plates 11 and 12. A transmission wheel 13 is installed at both ends of the left and right limiting plates 11 and 12, respectively a driving wheel and a driven wheel. The driving wheel is connected to a flow channel drive component 15 via a synchronous belt. 5 can be a motor, so the flow channel drive component 15 drives the drive wheel to rotate through the synchronizing component, and the drive wheel drives the driven wheel to rotate through the conveyor belt. The lower end faces of both sides of the pressure holding carrier 2 are in contact with the conveyor belt set on the left limit plate 11 and the right limit plate 12, thereby driving the movement of the pressure holding carrier 2. The track support block 14 supports the position of the conveyor belt, thereby supporting the position of the pressure holding carrier 2. Then, the pressure holding carrier 2 is driven to move on the left limit plate 11 and the right limit plate 12 through the conveyor belt. The motors on the left limit plate 11 and the right limit plate 12 are connected to the controller, so that the controller controls the synchronous operation of the motors on the left limit plate 11 and the right limit plate 12.

[0041] refer to Figure 4 and Figure 5 To prevent the conveyor belt from detaching from the track support block 14, one side of the track support block 14 is bolted to the corresponding left limit plate 11 or right limit plate 12. A support block blocking strip 141 extends upward from the side of the track support block 14 away from the corresponding left limit plate 11 or right limit plate 12. The height of the support block blocking strip 141 is higher than the height of the conveyor belt. Thus, by cooperating with the corresponding left limit plate 11 or right limit plate 12, the position of the corresponding conveyor belt on the track support block 14 is restricted.

[0042] refer to Figures 2-4To enable the flow channel assembly 1 to adapt to pressure-holding carriers 2 of different widths, a width adjustment assembly 3 is connected to the lower side of the flow channel assembly 1. The width adjustment assembly 3 includes an adjustment slide rail 31 bolted to the mounting plate 921, an adjustment slider 32 that slides with the adjustment slide rail 31, and an adjustment connecting plate 321 mounted on the adjustment slider 32. Two adjustment sliders 32 and two adjustment connecting plates 321 are provided. A left limiting plate 11 and a right limiting plate 12 are bolted to the corresponding adjustment connecting plates 321. Adjustment support plates 33 are provided at both ends of the adjustment slide rail 31 and are bolted to the mounting plate 921. The two adjustment support plates 33 are fixedly connected to... An adjusting slide rod 34 is provided, with its two ends connected to adjusting support plates 33 at both ends. The adjusting support plates 33 support the position of the adjusting slide rod 34. A locking sleeve 35 is fitted on the adjusting slide rod 34 and bolted to the adjusting connecting plate 321. The locking sleeve 35 slides and engages with the adjusting slide rod 34 and can be locked in the designated position of the adjusting slide rod 34. By adjusting the distance between the two locking sleeves 35, the distance between the two adjusting connecting plates 321 is adjusted, thereby adjusting the distance between the left limiting plate 11 and the right limiting plate 12. This allows for the use of pressure-holding carriers 2 of different sizes and specifications, increasing versatility and reducing production costs.

[0043] refer to Figure 3 The pressure-holding carrier 2 includes a carrier plate 21, on which a bearing groove 22 is formed to cooperate with the circuit board, and an adsorption hole 221 is formed on the bearing groove 22.

[0044] refer to Figures 7-9 A lifting assembly 4 is provided below the pressure-holding carrier 2. The lifting assembly 4 includes a lifting cylinder 41, a lifting guide column 42, and a lifting guide sleeve 43. A lifting base plate 44 is bolted to the mounting plate 921. The lifting cylinder 41 is bolted to the lifting base plate 44. The piston rod of the lifting cylinder 41 is positioned towards the pressure-holding carrier 2. The piston rod of the lifting cylinder 41 is connected to a lifting adsorption plate 45. A lifting adsorption positioning block 451 is fixedly connected to the lifting adsorption plate 45. The lifting adsorption positioning block 451 includes components connected to the carrier plate 21. The first positioning part 4511 fits into the substrate 21 and the second positioning part 4512 extends into the substrate 21. The shape of the second positioning part 4512 matches the adsorption hole 221. The second positioning part 4512 is provided with a lifting adsorption head 45121. The lifting adsorption head 45121 is connected to the negative pressure air source, thereby ensuring that the lifting adsorption head 45121 is accurately positioned in the designated position of the bearing groove 22. Then, the lifting adsorption head 45121 adsorbs the lower side of the circuit board, thereby fixing the position of the circuit board in the bearing groove 22.

[0045] To improve the stability of the position when the lifting adsorption plate 45 moves, the lifting guide column 42 is bolted to the lower side of the lifting adsorption plate 45, and the lifting guide sleeve 43 is bolted to the lifting base plate 44. The lifting guide column 42 and the lifting guide sleeve 43 are in sliding fit.

[0046] When the pressure-holding carrier 2 reaches the designated position, the lifting cylinder 41 rises, driving the lifting adsorption plate 45 to rise. The first positioning part 4511 of the lifting adsorption positioning block 451 abuts against the lower side of the carrier plate 21 and lifts the carrier plate 21, thereby causing the carrier plate 21 to disengage from the conveyor belt on the left limit plate 11 and the right limit plate 12, so that the conveyor belt no longer drives the pressure-holding carrier 2 to move. At the same time as lifting the carrier plate 21, the second positioning part 4512 cooperates with the adsorption hole 221 in the bearing groove 22, thereby adsorbing and fixing the circuit board in the bearing groove 22 to prevent the circuit board from shaking.

[0047] refer to Figures 4-8 To make the carrier plate 21 more stable when it is lifted, a flow channel pressure strip 16 is bolted to the corresponding position in the middle of the left limiting plate 11 and the right limiting plate 12. The upper side of the flow channel pressure strip 16 extends toward the carrier plate 21 with a blocking part 161. A certain gap is left between the lower side of the blocking part 161 and the upper side of the carrier plate 21, so as not to hinder the movement of the carrier plate 21 on the flow channel assembly 1. When the carrier plate 21 is lifted by the lifting cylinder 41, it will fit with the blocking part 161, so that the carrier plate 21 is clamped between the lifting adsorption plate 45 and the flow channel pressure strip 16, thereby further stabilizing the position of the carrier plate 21 when it is lifted, and also facilitating the next step of processing the circuit board.

[0048] refer to Figure 7 To ensure that the carrier plate 21 can be stably positioned in the flow channel assembly 1, a lifting limit assembly is provided on the lifting base plate 44. The lifting limit assembly includes a lifting limit cylinder 441 and a lifting limit block 442. The piston rod of the lifting limit cylinder 441 is bolted to the lifting limit block 442. The lifting limit cylinder 441 is bolted to the lifting base plate 44. The lifting limit block 442 abuts against the end face of the carrier plate 21 in the direction of movement, thereby controlling the position of the carrier plate 21 on the left limit plate 11 and the right limit plate 12. Different lifting limit blocks 442 can be replaced to adapt to different pressure holding carriers 2.

[0049] refer to Figure 2 and Figure 10A feeding device 93 is provided on one or both sides of the flow channel assembly 1. The feeding device 93 can be a feeder or other existing feeding device 93 capable of feeding PSA, thereby feeding the PSA that needs to be attached to the circuit board. The discharge port of the feeding device 93 is provided with a first detection area 94, thereby sending the PSA to the first detection area 94. A first detection device 5 is provided above the first detection area 94. The first detection device 5 is mounted on the frame 92 and faces the first detection area 94. The first detection device 5 is used to detect the position of the PSA in the first detection area 94. The first detection device 5 includes a first CCD vision inspection camera 51 and a first fixed bracket 52. The first CCD vision inspection camera 51 is bolted to the first fixed bracket 52, and the first fixed bracket 52 is bolted to the frame 92. The first CCD vision inspection camera 51 is electrically connected to the controller.

[0050] refer to Figure 2 and Figure 11 A linear motor module is provided on the frame 92. The linear motor module includes a first linear motor module 61 and a second linear motor module 62. The first linear motor module 61 and the second linear motor module 62 are symmetrically arranged on the mounting plate 921. A suction support frame 63 is connected between the first linear motor module 61 and the second linear motor module 62. The two ends of the suction support frame 63 are respectively bolted to the sliders of the first linear motor module 61 and the second linear motor module 62, so that the first linear motor module 61 and the second linear motor module 62 jointly drive the suction support frame 63 to move. The suction support frame 63 is located above the first detection area 94. The first linear motor module 61 and the second linear motor module 62 are both electrically connected to the controller.

[0051] A transverse linear motor module 631 is provided on the suction support frame 63. A longitudinal linear motor module 632 is bolted to the slider of the transverse linear motor module 631. The transverse linear motor module 631 controls the horizontal movement of the longitudinal linear motor module 632.

[0052] A longitudinal support frame 633 is bolted to the slider of the longitudinal linear motor module 632. A suction component 7 is provided on the longitudinal support frame 633, so that the longitudinal linear motor module 632 controls the suction component 7 to move closer to or away from the first detection area 94.

[0053] The suction assembly 7 includes a suction plate 71 for suctioning PSA film and a suction servo motor 72 for adjusting the position of the suction plate 71. The suction servo motor 72 is bolted to a longitudinal support frame 633. The main shaft of the suction servo motor 72 is connected to a suction reducer 73. The main shaft of the suction reducer 73 is connected to a coupling 74. The coupling 74 is connected to an intermediate fixing block 741. A bearing, preferably a radial bearing, is connected to the intermediate fixing block 741. A first suction fixing plate 75 is connected to the bearing, thereby connecting the first suction fixing plate 75 to the coupling 74. A second suction fixing plate 751 is bolted to the first suction fixing plate 75. Suction side plates 752 are bolted to both sides of the second suction fixing plate 751 facing the mounting plate 921. A side slider 753 is installed on the 52. The side slider 753 slides toward or away from the mounting plate 921. An elastic plate 7531 is bolted to the side slider 753. An elastic element 7532 is provided between the elastic plate 7531 and the second fixed plate 751. The elastic element 7532 can be a spring. An air suction plate 754 is bolted to the end of the elastic plate 7531 away from the second fixed plate. Under the force of the elastic element 7532, the elastic plate 7531 is forced to move toward the first detection area 94. The suction plate 71 is connected to the air suction plate 754, which provides a certain position compensation for the suction plate 71, reduces the requirements for the running position accuracy of the longitudinal linear motor module 632, and makes the suction plate 71 fit better with the PSA.

[0054] The suction plate 754 has an air passage that is connected to a negative pressure air source. The suction plate 754 is bolted to the suction plate 71. The suction plate 71 has multiple air holes 7121 for sucking up PSA. The air holes 7121 are connected to the air passages on the suction plate 754. So when the suction plate 71 is in contact with the PSA, the suction plate 71 sucks up the corresponding PSA. The suction plate 71 includes a connecting part 711 and a suction part 712. The connecting part 711 and the suction part 712 are integrally formed. The suction plate 71 is connected to the suction plate 754 through the connecting part 711. The shape of the side of the suction part 712 that contacts the PSA matches the PSA that needs to be adsorbed, so as to more stably suck up the PSA.

[0055] Because the suction plate 71 and the suction plate 754 are detachably connected, the suction plate 71 can be replaced with the corresponding suction plate 71 according to different shapes of PSA.

[0056] By combining the servo motor 72 and the reducer 73, the accuracy of controlling the rotation angle of the suction plate 71 is improved, allowing the suction plate 71 to better absorb the PSA.

[0057] The radial bearing and the second fixed plate 751 prevent axial wobbling of the suction plate 71, further ensuring the stability of the suction plate 71 during operation.

[0058] To ensure the stability of the elastic element 7532 between the elastic plate 7531 and the second fixed plate, a bolt with a thread on one end and a smooth rod on the other end can be passed through to absorb the second fixed plate 751 and the elastic element 7532 and the threaded engagement of one end of the side slider 753. This ensures that the spring will not bend to one side when it is in action, thus affecting the force of the spring on the side slider.

[0059] To more accurately determine the rotation angle of the main shaft of the intake reducer 73, multiple rotation position markers 7411 are installed on the coupling 74, and multiple proximity sensors 7412 are installed on the intermediate fixed block 741 to detect the rotation angle of the coupling 74. The proximity sensors 7412 are electrically connected to the controller.

[0060] refer to Figure 1 , Figure 10 and Figure 11 A second detection device 8 is installed on the frame 92. The second detection device 8 is used to detect the position of the PSA being picked up by the suction plate 71. The second detection device 8 includes a second CCD vision inspection camera 81 and a second fixed bracket 82. The second CCD vision inspection camera 81 is electrically connected to the controller. The controller controls the suction servo motor 72 to rotate, thereby correcting the position of the PSA when it is picked up by the suction plate 71. In preparation for attaching the PSA to the circuit board, the second detection device 8 can be set between the first detection area 94 and the flow channel assembly 1, so that the distance between them is the shortest.

[0061] refer to Figure 2 A top detection bracket 9 is bolted to the frame 92. A third detection device 91 is installed on the top detection bracket 9. Of course, the first detection device 5 can be installed on the top detection bracket 9 according to the actual situation. The third detection device 91 includes a third CCD vision inspection camera 911 and a third fixed bracket 912. The third CCD vision inspection camera 911 is bolted to the third fixed bracket 912 and is set towards the pressure holding carrier 2, thereby detecting the position of the bearing groove 22 on the carrier plate 21. The third CCD vision inspection camera 911 is electrically connected to the controller.

[0062] Operation process: Under the action of the production line, the circuit board processed at the previous station enters the flow channel assembly 1 through the pressure holding carrier 2. Under the action of the lifting limit block 442, the pressure holding carrier 2 stops at the designated position. Under the action of the lifting cylinder 41, the lifting adsorption plate 45 lifts the carrier plate 21, and the flow channel pressure strip 16 fixes the position of the carrier plate 21. At the same time, the lifting adsorption head 45121 adsorbs the circuit board in the bearing groove 22, thereby fixing the position of the circuit board.

[0063] Then the feeding device 93 sends the PSA to the first detection area 94, and the first detection device 5 detects the PSA in the first detection area 94 to determine the precise placement angle of the PSA.

[0064] Then, the controller controls the first linear motor module 61, the second linear motor module 62, the horizontal linear motor module 631, and the suction servo motor 72 to align the suction plate 71 with the PSA. The controller then controls the vertical linear motor module 632 to lower the suction plate 71 and bring the PSA into contact with the suction plate, thus suctioning the PSA. The PSA is then moved above the second detection device 8, and the second CCD vision inspection camera 81 detects the position and angle of the PSA being suctioned on the suction plate 71. Simultaneously, the third CCD vision inspection camera 911 of the third detection device 91 monitors the carrier groove 22. The position and angle of the PCB board are detected. Through comparison by the controller, the first linear motor module 61, the second linear motor module 62, the horizontal linear motor module 631 and the suction servo motor 72 are controlled again to adjust the position of the PSA. After the adjustment is completed, the PSA is attached to the circuit board in the bearing groove 22 by the combined action of the first linear motor module 61, the second linear motor module 62, the horizontal linear motor module 631 and the vertical linear motor module 632. Then the negative pressure air source connected to the suction plate 71 is turned off, so that the suction plate 71 no longer sucks up the PSA, so that the PSA is completely attached to the circuit board.

[0065] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A PSA mounting device for circuit boards, characterized in that, include: A frame (92) on which a mounting plate (921) is provided; Pressure holding carrier (2) is used to carry the circuit board to be processed. The pressure holding carrier (2) is provided with a bearing groove (22) that cooperates with the circuit board. The flow channel assembly (1) is disposed on the mounting plate (921) for guiding the pressure holding carrier (2) into the frame (92). The flow channel assembly (1) includes a left limiting plate (11) and a right limiting plate (12), which are used to support the pressure holding carrier (2). The lifting assembly (4) is located below the pressure holding carrier (2) and is used to lift the pressure holding carrier (2) in the flow channel assembly (1); A suction assembly (7) is mounted on a frame (92). The suction assembly (7) includes a suction plate (71) for suctioning PSA and a suction servo motor (72) for adjusting the position of the suction plate (71) relative to the PSA. The suction plate (71) is connected to the suction servo motor (72). The first detection device (5) is used to detect the position of the PSA to be attached. The first detection device (5) is mounted on the frame (92). The second detection device (8) is used to detect the position of PSA adsorbed by the suction plate (71). The second detection device (8) is installed on the frame (92). The third detection device (91) is used to detect the position of the circuit board in the bearing groove (22), and the third detection device (91) is mounted on the frame (92); In order to enable the flow channel assembly (1) to adapt to pressure holding carriers (2) of different widths, a width adjustment assembly (3) is also connected to the lower side of the flow channel assembly (1).

2. The PSA mounting equipment for a circuit board according to claim 1, characterized in that: The bearing groove (22) is provided with an adsorption hole (221). The lifting assembly (4) includes a lifting cylinder (41) and a lifting adsorption plate (45) connected to the lifting cylinder (41). The lifting adsorption plate (45) is provided with a lifting adsorption positioning block (451) that cooperates with the bearing groove (22). The lifting adsorption positioning block (451) is provided with a lifting adsorption head (45121) for adsorbing the circuit board.

3. The PSA mounting equipment for a circuit board according to claim 2, characterized in that: The lifting adsorption positioning block (451) includes a first positioning part (4511) and a second positioning part (4512). The pressure holding carrier (2) includes a carrier plate (21). The bearing groove (22) is disposed on the carrier plate (21). The first positioning part (4511) abuts against the lower side of the carrier plate (21). The second positioning part (4512) cooperates with the adsorption hole (221). The lifting adsorption head (45121) is disposed on the second positioning part (4512).

4. A PSA mounting apparatus for a circuit board according to any one of claims 1 or 2, characterized in that: The flow channel assembly (1) includes a track support block (14) provided on the left limiting plate (11) and the right limiting plate (12) for supporting the position of the pressure holding carrier (2). A support block blocking strip (141) extends upward on one side of the track support block (14). Flow channel pressure strips (16) are provided on the left limiting plate (11) and the right limiting plate (12) for restricting the position of the pressure holding carrier (2). A gap is left between the flow channel pressure strip (16) and the pressure holding carrier (2).

5. The PSA mounting equipment for a circuit board according to claim 1, characterized in that: The suction servo motor (72) is connected to a suction second fixed plate (751), a side slider (753) is connected to the suction second fixed plate (751), an elastic plate (7531) is provided on the side slider (753), an elastic element (7532) is provided between the suction second fixed plate (751) and the elastic plate (7531), and the suction plate (71) is located at the end of the elastic plate (7531) away from the elastic element (7532).

6. The PSA mounting equipment for a circuit board according to claim 1, characterized in that: The width adjustment component (3) includes an adjustment slide rail (31) mounted on a mounting plate (921), an adjustment slider (32) that slides and cooperates with the adjustment slide rail (31), and an adjustment connecting plate (321) mounted on the adjustment slider (32). The adjustment connecting plate (321) is connected to the corresponding left limit plate (11) or right limit plate (12). Adjustment support plates (33) are provided at both ends of the adjustment slide rail (31). An adjustment slide rod (34) is fixedly connected to the adjustment support plate (33). A locking sleeve (35) is provided on the adjustment slide rod (34). The locking sleeve (35) is connected to the adjustment connecting plate (321).

7. A PSA mounting apparatus for a circuit board according to any one of claims 1 or 5, characterized in that: The mounting plate (921) is provided with a first linear motor module (61) and a second linear motor module (62). The first linear motor module (61) and the second linear motor module (62) are connected to a suction support frame (63). The suction support frame (63) is provided with a transverse linear motor module (631). The transverse linear motor module (631) is provided with a longitudinal linear motor module (632). The suction assembly (7) is provided on the longitudinal linear motor module (632).

8. The PSA mounting equipment for a circuit board according to claim 1, characterized in that: The frame (92) is provided with a feeding device (93). One side of the feeding device (93) is provided with a first detection area (94) for placing the PSA to be attached. The first detection device (5) includes a first CCD vision inspection camera (51) and a first fixed bracket (52) arranged facing the first detection area (94). The first CCD vision inspection camera (51) is arranged on the first fixed bracket (52), and the first fixed bracket (52) is arranged on the frame (92).

9. The PSA mounting equipment for a circuit board according to claim 1, characterized in that: The second detection device (8) includes a second CCD vision inspection camera (81) and a second fixed bracket (82). The second CCD vision inspection camera (81) is mounted on the second fixed bracket (82), and the second fixed bracket (82) is mounted on the mounting plate (921). The second CCD vision inspection camera (81) is located between the first detection area (94) and the flow channel assembly (1).

10. The PSA mounting equipment for a circuit board according to claim 1, characterized in that: The frame (92) is provided with a top detection bracket (9), and the third detection device (91) includes a third CCD visual inspection camera (911) facing the pressure holding carrier (2) and a third fixed bracket (912). The third CCD visual inspection camera (911) is mounted on the third fixed bracket (912), and the third fixed bracket (912) is mounted on the top detection bracket (9).

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