A turnover mechanism for PCB board

Abstract

The application discloses a turnover mechanism for a PCB (Printed Circuit Board), which comprises a turnover device and a material feeding device. The material feeding device is provided with a carrier for placing the PCB. The turnover device is provided with a clamping assembly for clamping the side of the carrier. The turnover device is provided with a movable guide support. The clamping assembly is arranged on the guide support. The guide support is provided with a guide groove for guiding the clamping assembly. The clamping assembly comprises a short shaft arranged in the guide groove. One end of the short shaft is fixed with a clamping plate. The other end of the short shaft is fixed with a receiving plate. The receiving plate is connected with a guide rail fixed plate through a buffer assembly. The guide rail fixed plate is pivotally connected with a driving shaft through a bearing seat. The driving shaft is connected with a driving assembly. The driving shaft is driven to rotate counterclockwise or clockwise. Through the cooperation of the guide support and the clamping assembly, the clamping assembly can move back and forth according to the predetermined requirements under the adaptation of the buffer assembly. The PCB can realize the turnover action along the arc path, thereby meeting the turnover requirements of the PCB.

Description

Technical Field

[0001] This invention belongs to the field of automotive parts assembly and relates to a flipping mechanism for PCB boards. Background Technology

[0002] The car engine, the heart of a vehicle, provides power and determines its performance, fuel economy, stability, and environmental friendliness. With the development of new energy vehicles, the PCB board inside a car engine typically consists of two circuit boards (A and B) connected by a flexible wire harness (FPC). During the production and assembly of the car engine, one circuit board (A) is already fixed to the product, while the other circuit board (B) needs to be placed on top of it. Since both circuit boards (A and B) contain electronic components, if they were completely covered, it would cause collisions between the electronic components. Therefore, circuit board (B) needs to be flipped over and positioned above circuit board (A). This results in circuit board (B) not following a circular path, and existing PCB board flipping mechanisms cannot meet the flipping requirements of circuit board (B).

[0003] Therefore, it is necessary to improve existing technologies to overcome their shortcomings. Summary of the Invention

[0004] The purpose of this invention is to provide a flipping mechanism for PCB boards. Through structural improvements, the PCB board can achieve a flipping action along an arc path, thus meeting the flipping requirements of the PCB board.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] A flipping mechanism for a PCB board includes two mirror-symmetrically distributed flipping devices, with a feeding device disposed between the two flipping devices; each feeding device has a carrier for placing the PCB board, and each of the two flipping devices has a clamping assembly for clamping the side of the carrier; each flipping device has a movable guide bracket, and the clamping assembly is disposed on the guide bracket, which has a guide groove for guiding the clamping assembly; and...

[0007] The clamping assembly includes a short shaft disposed in a guide groove. One end of the short shaft is fixedly provided with a clamping plate that contacts the carrier, and the other end of the short shaft is fixedly provided with a receiving plate. The receiving plate is connected to the guide rail fixing plate through a buffer assembly, and the buffer assembly allows the receiving plate and the guide rail fixing plate to slide relative to each other. A first bearing seat is fixedly provided on the guide rail fixing plate, and a drive shaft is pivotally connected inside the first bearing seat.

[0008] The flipping device has a drive component, which is connected to a drive shaft and drives the drive shaft to rotate counterclockwise or clockwise.

[0009] Furthermore, the buffer assembly includes a slide block and a linear guide rail. The slide block has a groove for the linear guide rail to slide. The slide block is fixed to the receiving plate, and the linear guide rail is fixed to the guide rail fixing plate.

[0010] Furthermore, the flipping device has a bearing plate that moves horizontally back and forth toward the feeding device, and the guide bracket is fixedly mounted on the bearing plate; the guide bracket includes a guide plate and a support plate, with the guide plate closer to the feeding device; the guide groove is mounted on the guide plate, and a second bearing seat is fixedly mounted on the support plate, with the drive shaft mounted inside the second bearing seat.

[0011] Furthermore, the flipping device includes a frame, on which a vertical lifting component is provided. The vertical lifting component is connected to the base plate and drives the base plate to move vertically up and down. The base plate is provided with a horizontal driving component and a pair of X-axis linear slide rails. The lower end of the support plate is slidably mounted on the X-axis linear slide rails via a slider. The horizontal driving component is connected to the support plate.

[0012] Furthermore, the vertical lifting assembly includes a vertical cylinder and a guide column. The piston end of the vertical cylinder and the upper end of the guide column are both fixedly connected to the base plate. The frame is provided with a guide sleeve through which the guide column passes. The guide columns are connected by a connecting plate. The frame is provided with a limiter to restrict the descent height of the base plate.

[0013] Furthermore, the horizontal drive assembly includes a horizontal cylinder disposed on the base plate, the piston end of the horizontal cylinder being connected to the support plate via a connector; the base plate is provided with a limiter that restricts the movement range of the support plate.

[0014] Furthermore, the guide groove includes a long guide groove and a short guide groove, with the long guide groove located around the short guide groove; both the long guide groove and the short guide groove are provided with short shafts, and the clamping plate and the receiving plate are fixedly connected to the two short shafts.

[0015] Furthermore, the drive assembly includes a drive motor fixed on the support plate, the drive motor being connected to the gearbox, the output end of the gearbox being provided with a drive pulley, the outer side of the support plate being provided with a driven pulley, the driven pulley being mounted on the drive shaft, and the drive pulley and the driven pulley being connected by a synchronous belt.

[0016] Furthermore, the carrier is detachably provided with snap-fit ​​pins on both sides, and the clamping plate has an inserting groove for inserting the snap-fit ​​pins, the inserting groove corresponding to the snap-fit ​​pins.

[0017] Furthermore, the feeding device includes a product feeding rack for placing products and a carrier feeding rack for placing carriers. Products are fixedly mounted on the product feeding rack, and carriers are positioned on the carrier feeding rack.

[0018] The above technical solution has the following advantages: by using the guide bracket and the clamping component together, the clamping component can move back and forth according to the predetermined specifications under the adaptation of the buffer component, so that the PCB board can realize the flipping action of the arc path and meet the flipping requirements of the PCB board. Attached Figure Description

[0019] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0021] Figure 1 This is a three-dimensional structural diagram provided for the present invention.

[0022] Figure 2 This is a schematic diagram of the first state structure of the feeding device provided by the present invention (PCB board has been installed, but carrier is missing).

[0023] Figure 3 This is a schematic diagram of the second state structure of the feeding device provided by the present invention (PCB board not installed).

[0024] Figure 4 This is a schematic diagram of the first state structure of the flipping device provided by the present invention.

[0025] Figure 5 This is a schematic diagram of the second state structure of the flipping device provided by the present invention.

[0026] Figure 6 This is a top view structural diagram of the flipping device provided by the present invention.

[0027] Figure 7 This is a three-dimensional structural diagram of the PCB board and carrier provided by the present invention.

[0028] Figure 8 This is a partial perspective view of the guide plate and clamping assembly provided by the present invention.

[0029] In the diagram: 1, 2 - Tilting device; 3 - Feeding device; 31 - Product feeding rack; 32 - Carrier feeding rack; 33 - Product; 34 - Carrier; 341, 342 - Snap-fit ​​posts;

[0030] 101-Frame; 102-Base plate; 103-X-axis linear slide rail; 104-Bearing plate; 105-Guide plate; 106-Support plate; 1051-Guide groove; 107-Clamping plate; 108-Supporting plate; 109-Slide; 110-Linear guide rail; 111-Guide rail fixing plate; 112, 114-Bearing seats; 113-Drive shaft; 115-Drive motor; 116-Drive pulley; 117-Driven pulley; 118-Vertical cylinder; 119-Guide column; 120-Guide sleeve; 121-Connecting plate; 122, 124-Limiters; 123-Horizontal cylinder. Detailed Implementation

[0031] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding the present invention, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] Example

[0033] See Figures 1-8 As shown, a flipping mechanism for a PCB board includes flipping devices 1 and 2 and a feeding device 3, wherein the flipping devices 1 and 2 are mirror-symmetrically distributed on both sides of the feeding device 3. The feeding device 3 has a product feeding rack 31 for placing products and a carrier feeding rack 32 for placing carriers. A circuit board A is placed on a product 33, and a circuit board B is positioned on a carrier 34. The circuit board B and the circuit board A are connected by a flexible wire harness. The purpose of this flipping mechanism is to flip the circuit board B above the circuit board A, thereby fixing the circuit board B onto the product 33.

[0034] To achieve the above functions, this application document makes the following improvements:

[0035] The first pair of carriers 34 has been improved, with a pair of snap-fit ​​posts 341 and 342 detachably mounted on each side of the carrier 34, the two pairs of snap-fit ​​posts 341 and 342 being symmetrically distributed. The carrier 34 has a first positioning post, which is inserted into the corresponding positioning hole of the circuit board B, thus snapping the circuit board B into the carrier 34. Simultaneously, constrained by the flexible wire harness, the circuit board B will not detach from the carrier 34 during the flipping process.

[0036] In use, the feeding device 3 is placed on a conveyor belt and moves along the Y-axis along with the conveyor belt. This allows the flipping mechanism to continuously flip multiple PCB boards, achieving automation.

[0037] The second improvement is made to the flipping devices 1 and 2. In this embodiment, the flipping devices 1 and 2 are mirror images of each other, and the mechanical structures that achieve their functions are the same. For ease of description, the flipping device 1 will be used as an example for explanation.

[0038] The flipping device 1 includes a frame 101 and a base plate 102. A vertical lifting assembly is mounted on the frame 101, connected to the base plate 102 and capable of driving the base plate 102 to move vertically up and down. A pair of X-axis linear guide rails 103 are mounted on the base plate 102, and the lower end of a support plate 104 is slidably mounted on the X-axis linear guide rails 103 via a slider. A horizontal driving assembly is mounted on one side of the base plate 102, connected to the support plate 104, and drives the support plate 104 to move along the X-axis linear guide rails 103.

[0039] In this embodiment, the vertical lifting assembly includes a vertical cylinder 118, the piston end of which is fixedly connected to the base plate 102. To ensure stable vertical movement of the base plate 102, guide posts 119 are provided on both sides of the vertical cylinder 118, and guide sleeves 120 are provided on the frame 101 for the guide posts 119 to pass through. The upper ends of the guide posts 119 are fixed to the base plate 102, and the guide posts 119 are connected to each other by connecting plates 121. At the same time, multiple limiters 122 are provided on the frame 101 to adjust the minimum height to which the base plate 102 descends.

[0040] In this embodiment, the horizontal drive assembly includes a horizontal cylinder 123 mounted on a base plate 102. The piston end of the horizontal cylinder 123 is connected to a support plate 104 via a connector, thereby driving the support plate 104 to move along the X-axis linear slide rail 103. To limit the movement range of the support plate 104, a limiter 124 is provided on the base plate 102.

[0041] A guide bracket is provided on the support plate 104. The guide bracket includes a guide plate 105 and a support plate 106 placed side by side. A short shaft is provided between the guide plate 105 and the support plate 106 to fix their positions. The guide plate 105 has a guide groove 1051. In this embodiment, there are two guide grooves 1051, one long and one short, with the longer guide groove located on the outer perimeter.

[0042] A clamping assembly is also provided at the guide bracket. The clamping assembly includes a short shaft disposed in the guide groove 1051. One end of the short shaft is fixedly provided with a clamping plate 107 that contacts the carrier. The other end of the short shaft is fixedly provided with a receiving plate 108. A slide 109 is fixedly provided on the receiving plate 108. A linear guide rail 110 is provided on the slide 109 (the slide 109 has a groove for the linear guide rail 110 to slide, so that the two can slide relative to each other). The upper end of the linear guide rail 110 is fixed on the guide rail fixing plate 111. A bearing seat 112 (first bearing seat) is fixedly provided on the guide rail fixing plate 111. A drive shaft 113 is pivotally connected inside the bearing seat 112.

[0043] In use, a bearing seat 114 (second bearing seat) is provided on the support plate 106. The drive shaft 113 passes through the bearing seat 114 and is connected to the drive assembly on the support plate 104. Under the drive of the drive assembly, the drive shaft 113 is selected, thereby driving the short shaft to move along the guide groove 1051. During the movement, the slide 109 and the linear guide rail 110 form a buffer assembly to adjust the distance deviation caused by the non-circular motion of the short shaft, thereby realizing the arc movement of the clamping plate 107.

[0044] In this embodiment, the drive assembly includes a drive motor 115 fixed on a support plate 104. The drive motor 115 is connected to a gearbox, and the output end of the gearbox is provided with a drive pulley 116. A driven pulley 117 is provided on the outside of the support plate 106 and is mounted on the drive shaft 113. A synchronous belt is provided between the drive pulley 116 and the driven pulley 117. Through the above structural design, the drive motor 115 can be controlled to rotate forward or backward, driving the drive shaft 113 to rotate counterclockwise or clockwise, thereby realizing the back-and-forth movement of the short shaft within the guide groove 1051.

[0045] In this embodiment, the clamping plate 107 has two embedding slots, which correspond to the locking posts on the carrier 34. During use, after the sensors on the flipping devices 1 and 2 detect that the feeding device 3 is in position (at this time, the feeding device 3 is stationary), the horizontal drive assembly moves the carrier plate 104 towards the feeding device 3 and adjusts the position of the clamping plate 107 to its initial state. At this time, the two embedding slots on the clamping plate correspond exactly to the locking posts on the carrier 34. After the carrier plate 104 moves horizontally a specified distance, the clamping plate locks the carrier 34. The drive motor 115 starts, driving the clamping plate 107 to move along the guide groove. When the clamping plate 107 reaches its bottom, the circuit board B placed on the carrier 34 is directly above the circuit board A, and the screw mounting holes on the circuit board B correspond to the positions of the mounting holes on the product. The carrier 34 in this embodiment has clearance grooves, allowing on-site personnel or screw-driving equipment to use screws to lock the circuit board B onto the product, completing the assembly of the circuit board B. Then, the drive motor 115 moves in the opposite direction, guiding the clamping plate 107 back to its initial state. During this process, since the circuit board B has been screwed onto the product, the circuit board B will detach from the carrier 34, and the carrier 34 will be placed back onto the carrier unloading rack 32 for reuse.

[0046] The guide slot in this application is pre-set and has an overall arc-shaped structure. It works in conjunction with the clamping plate to position the circuit board B at the designated location on the product.

[0047] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and these variations still fall within the protection scope of the present invention.

Claims

1. A flipping mechanism for a PCB board, characterized in that: The device includes two mirror-symmetrically distributed flipping devices, with a feeding device positioned between them. Each feeding device has a carrier for placing a PCB board. Each of the two flipping devices has clamping assemblies for holding the sides of the carrier. Each flipping device has a movable guide bracket. The clamping assemblies are mounted on the guide bracket, which has guide grooves to guide the clamping assemblies. The clamping assembly includes a short shaft disposed in a guide groove. One end of the short shaft is fixedly provided with a clamping plate that contacts the carrier, and the other end of the short shaft is fixedly provided with a receiving plate. The receiving plate is connected to the guide rail fixing plate through a buffer assembly, and the buffer assembly allows the receiving plate and the guide rail fixing plate to slide relative to each other. A first bearing seat is fixedly provided on the guide rail fixing plate, and a drive shaft is pivotally connected inside the first bearing seat. The flipping device has a drive assembly, which is connected to a drive shaft and drives the drive shaft to rotate counterclockwise or clockwise. The buffer assembly includes a slide block and a linear guide rail. The slide block has a groove for the linear guide rail to slide. The slide block is fixed to the receiving plate, and the linear guide rail is fixed to the guide rail fixing plate. The flipping device has a bearing plate that moves horizontally back and forth toward the feeding device, and the guide bracket is fixedly mounted on the bearing plate; the guide bracket includes a guide plate and a support plate, and the guide plate is closer to the feeding device; the guide groove is mounted on the guide plate, and a second bearing seat is fixedly mounted on the support plate, and the drive shaft is mounted in the second bearing seat; The guide groove includes a long guide groove and a short guide groove, with the long guide groove located around the short guide groove; both the long guide groove and the short guide groove are provided with short shafts, and the clamping plate and the receiving plate are fixedly connected to the two short shafts. This enables the PCB board to perform flipping actions on non-circular curved paths.

2. The flipping mechanism according to claim 1, characterized in that: The flipping device includes a frame, on which a vertical lifting component is provided. The vertical lifting component is connected to the base plate and drives the base plate to move vertically up and down. The base plate is provided with a horizontal driving component and a pair of X-axis linear slide rails. The lower end of the support plate is slidably mounted on the X-axis linear slide rails via a slider. The horizontal driving component is connected to the support plate.

3. The flipping mechanism according to claim 2, characterized in that: The vertical lifting assembly includes a vertical cylinder and a guide column. The piston end of the vertical cylinder and the upper end of the guide column are fixedly connected to the base plate. The frame is provided with a guide sleeve for the guide column to pass through. The guide columns are connected by a connecting plate. The frame is provided with a limiter to restrict the descent height of the base plate.

4. The flipping mechanism according to claim 3, characterized in that: The horizontal drive assembly includes a horizontal cylinder mounted on a base plate, the piston end of which is connected to a support plate via a connector; a limiter is provided on the base plate to restrict the movement range of the support plate.

5. The flipping mechanism according to claim 1, characterized in that: The drive assembly includes a drive motor fixed on a support plate, the drive motor being connected to a gearbox, a drive pulley being provided at the output end of the gearbox, a driven pulley being provided on the outer side of the support plate, the driven pulley being mounted on the drive shaft, and the drive pulley and the driven pulley being connected by a synchronous belt.

6. The flipping mechanism according to claim 1, characterized in that: The carrier is detachably provided with snap-fit ​​posts on both sides, and the clamping plate has an insert groove for inserting the snap-fit ​​posts, the insert groove corresponding to the snap-fit ​​posts.

7. The flipping mechanism according to claim 1, characterized in that: The feeding device includes a product feeding rack for placing products and a carrier feeding rack for placing carriers. Products are fixedly mounted on the product feeding rack, and carriers are positioned on the carrier feeding rack.

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