SMT device for manufacturing PCBA circuit board

Abstract

The utility model relates to the technical field of PCBA circuit boards, and discloses an SMT device for manufacturing PCBA circuit boards, which comprises a mounting seat, a lifting assembly is fixedly mounted at the bottom of the mounting seat, a frame body is fixedly mounted at the top of the mounting seat, and a chip mounter is fixedly mounted on the inner top wall of the frame body. The SMT pasting device comprises a frame body, a mounting seat is arranged on the top of the frame body, a fixing assembly is fixedly mounted at the top of the mounting seat, a conveying belt is fixedly mounted at the top of the mounting seat, a conveying mechanism extending to the position above the conveying belt is arranged at the top of the mounting seat, and a cleaning mechanism extending to the position above the conveying belt is arranged on the inner top wall of the frame body. By arranging the conveying belt, the conveying mechanism and the cleaning mechanism, the circuit board is conveyed through the conveying belt, and after the cleaning mechanism cleans the circuit board, the circuit board is intermittently conveyed to the fixing assembly through the conveying mechanism for next operation, so that the purpose of convenient cleaning is achieved, and the purpose of intermittent automatic feeding is achieved.

Description

Technical Field

[0001] This utility model relates to the field of PCBA circuit board technology, specifically to an SMT placement device for PCBA circuit board manufacturing. Background Technology

[0002] A search revealed Chinese Patent Publication No. CN220711741U, which discloses a PCB board mounting device, comprising a base plate, connecting rods, a fixing plate, connecting posts, sliders, and guide rods. A placement plate is longitudinally slidably mounted on the base plate. The connecting posts are located at the bottom of the placement plate, and a power component a is provided on the base plate to drive the connecting posts to move up and down. One end of the guide rod is connected to the base plate, and the other end passes through the placement plate; multiple sets of guide rods are provided. Two sets of sliders are laterally slidably mounted on the placement plate, and a power component b is provided on the placement plate to drive the sliders to move laterally. Both ends of the connecting rods are connected to the sliders and the fixing plate, respectively. The fixing plate is located above the placement plate and has a slot for fixing the circuit board. This invention can adjust components to the same height, ensuring their stable installation on the circuit board and avoiding poor connections or instability caused by height differences. The existing technical solutions mentioned above have the following drawbacks: the circuit board can only be placed on the processing table by hand, which cannot achieve intermittent automatic feeding, reducing work efficiency. Furthermore, there is no corresponding cleaning structure to clean the circuit board, and dust adheres to the surface of the circuit board, which directly affects the quality of subsequent SMT placement and reduces the processing effect of the SMT placement device. Therefore, an SMT placement device for PCBA circuit board manufacturing is proposed to solve the above-mentioned problems. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an SMT placement device for PCBA circuit board manufacturing, which has the advantages of intermittent automatic feeding and easy cleaning, thus solving the problems mentioned in the background art.

[0004] To achieve the aforementioned goal of intermittent automatic feeding and easy cleaning, this utility model provides the following technical solution: an SMT placement device for PCBA circuit board manufacturing, including a mounting base, a lifting component fixedly installed at the bottom of the mounting base, a frame fixedly installed at the top of the mounting base, a placement device fixedly installed on the inner top wall of the frame, a fixing component fixedly installed at the top of the mounting base, a conveyor belt fixedly installed at the top of the mounting base, a conveying mechanism extending above the conveyor belt provided at the top of the mounting base, and a cleaning mechanism extending above the conveyor belt provided on the inner top wall of the frame;

[0005] The conveying mechanism includes a rotary motor. The rotary motor is fixedly installed on the top of the mounting base and located behind the conveyor belt. A rotating shaft is fixedly installed at the output shaft of the rotary motor. A mounting plate is fixedly installed on the top of the rotating shaft. Four mounting rods are fixedly installed on the outer side of the mounting plate. The two front mounting rods extend above the conveyor belt. A strip plate is fixedly installed at the bottom of the mounting rod. The two front strip plates are in contact with the top of the conveyor belt.

[0006] Preferably, the cleaning mechanism includes a rectangular frame. The rectangular frame is fixedly installed on the inner top wall of the frame. A slide cylinder extending to the bottom of the rectangular frame is slidably installed on the outer side of the rectangular frame. A return spring fixedly connected to the inner top wall of the rectangular frame is fixedly installed on the inner bottom wall of the slide cylinder. An installation plate extending above the conveyor belt is fixedly installed on the front side of the slide cylinder. Limit frames are fixedly installed on both the left and right sides of the installation plate. A right-angle block extending to the rear side is movably installed on the front side of the limit frame. An adhesive plate located above the conveyor belt is fixedly installed at the bottom of the right-angle block. A connecting plate is fixedly installed on the right side of the slide cylinder. A wedge block is fixedly installed on the top of the connecting plate.

[0007] Preferably, the lifting assembly includes a base plate located below the mounting base. Two support plates are fixedly installed on the top of the base plate. A support frame, which is fixedly connected to the bottom of the mounting base, is slidably installed on the outer side of the support plate. An electric push rod is fixedly installed on the top of the base plate, and the output end of the electric push rod is fixedly connected to the bottom of the mounting base.

[0008] Preferably, the fixing component includes a housing, the housing located inside the frame is fixedly installed on the top of the mounting base, a dual-axis servo motor is fixedly installed on the inner bottom wall of the housing, threaded rods that are rotatably connected to the front and rear sides of the inner wall of the housing are fixedly installed at the front and rear output shafts of the dual-axis servo motor, respectively, and threaded blocks that are slidably connected to the inner bottom wall of the housing are threadedly connected to the outer side of the threaded rods, a connecting rod extending to the top of the housing is fixedly installed on the top of the threaded block, and a limiting plate that fits against the top of the housing is fixedly installed on the top of the connecting rod.

[0009] Preferably, the inner bottom wall of the rectangular frame is open, the inner top wall of the slide is open, and the number of the return springs is two and they are symmetrically distributed front and back.

[0010] Preferably, the outer sides of the two threaded rods are provided with two threads of equal length and opposite direction, the inner top wall of the box is provided with two slots, the size of the slots is adapted to the movement trajectory of the connecting rod, the bottom of the threaded block is fixedly installed with a limit rod, and the inner bottom wall of the box is provided with a limit groove adapted to the movement trajectory of the limit rod.

[0011] Compared with the prior art, the present invention provides an SMT placement device for PCBA circuit board manufacturing, which has the following advantages:

[0012] This SMT assembly device for PCBA circuit board fabrication utilizes a conveyor belt, a conveying mechanism, and a cleaning mechanism. The circuit board is transported via the conveyor belt, and after cleaning by the cleaning mechanism, it is intermittently conveyed to a fixed assembly by the conveyor belt for the next step. First, the PCBA circuit board is placed on the conveyor belt for metal transport, and simultaneously, a rotary motor is started. When the PCBA circuit board reaches the designated position, the rotary motor drives the rotating shaft, mounting plate, mounting rod, and strip to rotate simultaneously. The mounting rod and strip maintain a uniform counter-clockwise rotation. When the strip rotates to contact the top of the wedge block, continued rotation will compress the wedge block and connecting plate, causing them to move downwards. Supported by the frame, the connecting plate drives the slide cylinder downward and stretches the return spring, which in turn drives the mounting plate, limit frame, right-angle block and adhesive plate to move simultaneously. The adhesive plate can stick and clean the dust on the top of the PCBA circuit board, achieving the purpose of easy cleaning. In addition, when the adhesive plate is not sticky, the connection between the right-angle block and the limit frame can be released, making it easy to disassemble the adhesive plate and install a new adhesive plate to provide a better cleaning effect. Then, the mounting rod and strip continue to rotate and move, and together with the conveyor belt, push the cleaned PCBA circuit board to the right until it is transported to the box, achieving the purpose of intermittent automatic feeding. Attached Figure Description

[0013] Figure 1 This is a three-dimensional view of the structure of this utility model;

[0014] Figure 2 This is a bottom-view perspective view of the structure of this utility model;

[0015] Figure 3 This is a partial exploded view of the present invention;

[0016] Figure 4 This is a rear view of a partial three-dimensional structure of the present invention;

[0017] Figure 5 This is a partial sectional perspective view of the present invention;

[0018] Figure 6 This is a partial exploded view of the present invention.

[0019] In the diagram: 1 Mounting base, 2 Lifting assembly, 21 Base plate, 22 Support plate, 23 Support frame, 24 Electric push rod, 3 Frame, 4 Patch applicator, 5 Conveyor belt, 6 Conveying mechanism, 61 Rotary motor, 62 Rotary shaft, 63 Mounting disc, 64 Mounting rod, 65 Strip plate, 7 Cleaning mechanism, 71 Rectangular frame, 72 Slide cylinder, 73 Return spring, 74 Mounting plate, 75 Limiting frame, 76 Right angle block, 77 Adhesive plate, 78 Connecting plate, 79 Wedge block, 8 Fixing assembly, 81 Box body, 82 Dual-axis servo motor, 83 Threaded rod, 84 Threaded block, 85 Connecting rod, 86 Limiting plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-6 This utility model provides a technical solution: an SMT placement device for PCBA circuit board manufacturing, including a mounting base 1, a lifting component 2 fixedly installed at the bottom of the mounting base 1, a frame 3 fixedly installed at the top of the mounting base 1, a placement device 4 fixedly installed on the inner top wall of the frame 3, a fixing component 8 fixedly installed at the top of the mounting base 1, a conveyor belt 5 fixedly installed at the top of the mounting base 1, a conveying mechanism 6 extending above the conveyor belt 5 provided at the top of the mounting base 1, and a cleaning mechanism 7 extending above the conveyor belt 5 provided on the inner top wall of the frame 3.

[0022] The conveying mechanism 6 includes a rotary motor 61. The rotary motor 61 is fixedly installed on the top of the mounting base 1, located behind the conveyor belt 5. The rotary motor 61 is electrically connected to an external power source and controlled by an external program. A rotating shaft 62 is fixedly installed at the output shaft of the rotary motor 61. A mounting plate 63 is fixedly installed on the top of the rotating shaft 62. The mounting plate 63 is octagonal in design. Four mounting rods 64 are fixedly installed on the outer side of the mounting plate 63. The four mounting rods 64 are distributed in a ring at equal intervals. The two front mounting rods 64 extend to the top of the conveyor belt 5. A strip plate 65 is fixedly installed at the bottom of the mounting rods 64. The two front strip plates 65 are in contact with the top of the conveyor belt 5.

[0023] The cleaning mechanism 7 includes a rectangular frame 71. The rectangular frame 71 is fixedly installed on the inner top wall of the frame 3. A slide cylinder 72 extending to the bottom of the rectangular frame 71 is slidably installed on the outer side of the rectangular frame 71. Both the rectangular frame 71 and the slide cylinder 72 are rectangular in design. A return spring 73, which is fixedly connected to the inner top wall of the rectangular frame 71, is fixedly installed on the inner bottom wall of the slide cylinder 72. The elastic coefficient of the return spring 73 can be set according to requirements. A mounting plate 74 extending above the conveyor belt 5 is fixedly installed on the front side of the slide cylinder 72. The left side of the mounting plate 74... Limiting frames 75 are fixedly installed on both sides. Right-angled blocks 76 extending to the rear side are movably installed on the front side of the limiting frames 75. Rectangular mounting holes that fit the right-angled blocks 76 are opened inside the limiting frames 75. An adhesive plate 77 located above the conveyor belt 5 is fixedly installed on the bottom of the right-angled blocks 76. Adhesive is provided on the bottom of the adhesive plate 77. A connecting plate 78 is fixedly installed on the right side of the slide cylinder 72. A wedge block 79 is fixedly installed on the top of the connecting plate 78. The top of the wedge block 79 is designed to be inclined.

[0024] The inner bottom wall of the rectangular frame 71 is open, the inner top wall of the slide cylinder 72 is open, and there are two return springs 73, which are symmetrically distributed front and back.

[0025] The lifting assembly 2 includes a base plate 21 located below the mounting base 1. Two support plates 22 are fixedly installed on the top of the base plate 21. Support frames 23, which are fixedly connected to the bottom of the mounting base 1, are slidably installed on the outer side of the support plates 22. The two support frames 23 are open on opposite sides. The support plates 22 and support frames 23 are symmetrically distributed on both sides. An electric push rod 24 is fixedly installed on the top of the base plate 21. The electric push rod 24 is electrically connected to an external power source and controlled by an external program. The output end of the electric push rod 24 is fixedly connected to the bottom of the mounting base 1.

[0026] The lifting assembly 2 allows for height adjustment of the mounting base 1 and its top components to accommodate PCBA board placement operations under different conditions. Activating the electric push rod 24 pushes the mounting base 1 up and down, ensuring greater stability of the mounting base 1 under the support of the support plate 22 and support frame 23, thus facilitating operator use.

[0027] The fixing component 8 includes a housing 81. The housing 81, located inside the frame 3, is fixedly mounted on the top of the mounting base 1. A dual-axis servo motor 82 is fixedly mounted on the inner bottom wall of the housing 81. The dual-axis servo motor 82 is electrically connected to an external power supply and controlled by an external program. Both output shafts of the dual-axis servo motor 82 can rotate in both directions. Threaded rods 83, which are rotatably connected to the front and rear sides of the inner wall of the housing 81, are fixedly mounted on the front and rear output shafts of the dual-axis servo motor 82, respectively. Bearings are fixedly mounted on the front and rear sides of the inner wall of the housing 81. The threaded rods 83 are connected to the shafts via... The threaded rod 83 is rotatably connected to the inner wall of the housing 81. The outer side of the threaded rod 83 is threadedly connected to a threaded block 84 that is slidably connected to the inner bottom wall of the housing 81. The inner side of the threaded block 84 is provided with a threaded hole that matches the threaded rod 83. A connecting rod 85 extending to the top of the housing 81 is fixedly installed on the top of the threaded block 84. The two connecting rods 85 are symmetrically distributed. A limiting plate 86 that fits against the top of the housing 81 is fixedly installed on the top of the connecting rod 85. The limiting plate 86 is used to fix the PCBA circuit board, prevent displacement during the placement process, and facilitate the placement operation.

[0028] Two threaded rods 83 have two threads of equal length and opposite direction on their outer sides. The inner top wall of the box 81 has two slots, the size of which is adapted to the movement trajectory of the connecting rod 85. The bottom of the threaded block 84 is fixedly installed with a limit rod, and the inner bottom wall of the box 81 has a limit groove adapted to the movement trajectory of the limit rod.

[0029] In use, the PCBA circuit board is transported by the conveyor belt 5, cleaned by the cleaning mechanism 7, and then transported to the box 8 by the conveyor mechanism 6. When the PCBA circuit board reaches the middle of the two limit plates 86, the dual-axis servo motor 82 drives the threaded rod 83 to rotate, so that the threaded block 84 and the connecting rod 85 drive the limit plate 86 to move and fix the PCBA circuit board. Then the pick-and-place machine 4 performs the pick-and-place operation on the PCBA circuit board, and then the PCBA circuit board that has been picked up can be taken out for collection.

[0030] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0031] In summary, this SMT placement device for PCBA circuit board manufacturing, through the setting of conveyor belt 5, conveying mechanism 6, and cleaning mechanism 7, allows the circuit board to be conveyed by conveyor belt 5. After the cleaning mechanism 7 cleans the circuit board, it is intermittently conveyed by conveyor mechanism 6 to the fixed assembly 8 for the next step. First, the PCBA circuit board is placed on conveyor belt 5 for metal conveying, and at the same time, the rotary motor 61 is started. When the PCBA circuit board reaches the designated position, the rotary motor 61 drives the rotating shaft 62, mounting plate 63, mounting rod 64, and strip plate 65 to rotate simultaneously. The mounting rod 64 and strip plate 65 maintain a uniform counterclockwise rotation. When the strip plate 65 rotates to contact the top of the wedge block 79, further rotation will squeeze the wedge block 79 and connecting plate 78 to move downward. Under the support of the rectangular frame 71, the connecting plate 78 drives the slide cylinder 72 to move downward and stretches the return spring 73, thereby driving the mounting plate 74, limit frame 75, and right angle block 76. Simultaneously moving with the adhesive plate 77, the adhesive plate 77 can effectively remove dust from the top of the PCBA circuit board, facilitating cleaning. Furthermore, the arrangement of the adhesive plate 77 and right-angle block 76 allows for easy removal of the adhesive plate 77 and installation of a new one when the adhesive plate 77 becomes less sticky, providing better cleaning results. Subsequently, the mounting rod 64 and strip 65 continue to rotate and move, working in conjunction with the conveyor belt 5 to push the cleaned PCBA circuit board to the right until it is conveyed onto the box 81. This achieves intermittent automatic feeding, solving the problem of having to manually place the circuit board on the processing table, which reduces work efficiency and prevents dust from adhering to the circuit board surface, directly affecting the subsequent SMT placement quality and reducing the processing effect of the SMT placement device.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An SMT placement device for PCBA circuit board fabrication, comprising a mounting base (1), a lifting assembly (2) fixedly mounted on the bottom of the mounting base (1), a frame (3) fixedly mounted on the top of the mounting base (1), a placement device (4) fixedly mounted on the inner top wall of the frame (3), and a fixing assembly (8) fixedly mounted on the top of the mounting base (1), characterized in that: The top of the mounting base (1) is fixedly installed with a conveyor belt (5), and the top of the mounting base (1) is provided with a conveying mechanism (6) extending above the conveyor belt (5). The inner top wall of the frame (3) is provided with a cleaning mechanism (7) extending above the conveyor belt (5). The conveying mechanism (6) includes a rotary motor (61). The rotary motor (61) located behind the conveyor belt (5) is fixedly installed on the top of the mounting base (1). A rotating shaft (62) is fixedly installed at the output shaft of the rotary motor (61). A mounting plate (63) is fixedly installed on the top of the rotating shaft (62). Four mounting rods (64) are fixedly installed on the outer side of the mounting plate (63). The two front mounting rods (64) extend to the top of the conveyor belt (5). A strip plate (65) is fixedly installed at the bottom of the mounting rod (64). The two front strip plates (65) are in contact with the top of the conveyor belt (5).

2. The SMT placement device for PCBA circuit board fabrication according to claim 1, characterized in that: The cleaning mechanism (7) includes a rectangular frame (71). The rectangular frame (71) is fixedly installed on the inner top wall of the frame (3). A slide cylinder (72) extending to the bottom of the rectangular frame (71) is slidably installed on the outer side of the rectangular frame (71). A reset spring (73) fixedly connected to the inner top wall of the rectangular frame (71) is fixedly installed on the inner bottom wall of the slide cylinder (72). An installation plate (74) extending above the conveyor belt (5) is fixedly installed on the front side of the slide cylinder (72). Limit frames (75) are fixedly installed on both the left and right sides of the installation plate (74). A right-angle block (76) extending to the rear side is movably installed on the front side of the limit frame (75). An adhesive plate (77) located above the conveyor belt (5) is fixedly installed at the bottom of the right-angle block (76). A connecting plate (78) is fixedly installed on the right side of the slide cylinder (72). A wedge block (79) is fixedly installed on the top of the connecting plate (78).

3. The SMT placement device for PCBA circuit board fabrication according to claim 1, characterized in that: The lifting assembly (2) includes a base plate (21) located below the mounting base (1). Two support plates (22) are fixedly installed on the top of the base plate (21). A support frame (23) fixedly connected to the bottom of the mounting base (1) is slidably installed on the outer side of the support plate (22). An electric push rod (24) is fixedly installed on the top of the base plate (21). The output end of the electric push rod (24) is fixedly connected to the bottom of the mounting base (1).

4. The SMT placement device for PCBA circuit board fabrication according to claim 1, characterized in that: The fixing component (8) includes a box (81). The box (81) located inside the frame (3) is fixedly installed on the top of the mounting base (1). A dual-axis servo motor (82) is fixedly installed on the inner bottom wall of the box (81). A threaded rod (83) that is rotatably connected to the front and rear sides of the inner wall of the box (81) is fixedly installed at the front and rear output shafts of the dual-axis servo motor (82). A threaded block (84) that is slidably connected to the inner bottom wall of the box (81) is threadedly connected to the outer side of the threaded rod (83). A connecting rod (85) extending to the top of the box (81) is fixedly installed on the top of the connecting rod (85). A limiting plate (86) that fits against the top of the box (81) is fixedly installed on the top of the connecting rod (85).

5. The SMT placement device for PCBA circuit board fabrication according to claim 2, characterized in that: The inner bottom wall of the rectangular frame (71) is open, the inner top wall of the slide cylinder (72) is open, and there are two return springs (73) that are symmetrically distributed front and back.

6. The SMT placement device for PCBA circuit board fabrication according to claim 4, characterized in that: The outer sides of the two threaded rods (83) are provided with two threads of equal length and opposite direction. The inner top wall of the box (81) is provided with two slots. The size of the slots is adapted to the movement trajectory of the connecting rod (85). The bottom of the threaded block (84) is fixedly installed with a limit rod. The inner bottom wall of the box (81) is provided with a limit groove adapted to the movement trajectory of the limit rod.

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