Automatic turnover device for PCBA processing

Abstract

The utility model relates to PCBA processing technical field, and disclose a kind of automatic turnover device for PCBA processing, including processing table and controller, the upper end of the processing table is provided with electric manipulator, pneumatic clamping jaw and visual camera, the clamping end of the pneumatic clamping jaw is provided with self-locking piece for the wire outlet sleeve setting on PCBA board, the self-locking piece includes two horizontal rods and two longitudinal rods movably arranged at the periphery of wire outlet, the right end of the processing table is bolted controller. The utility model is by initial adjustment horizontal rod and longitudinal rod frame adaptation PCBA board's wire outlet, subsequent positioning by visual camera, let electric manipulator drive frame sleeve setting wire outlet form mechanical lock, again by pneumatic clamping jaw clamping plate body;The double structure does not need to rely on single friction, can resist the insufficient friction caused by plate edge dirt, oxide layer, and mechanical arm shaking interference, avoid PCBA board to turn over in sliding and breakage.

Description

Technical Field

[0001] This utility model relates to the field of PCBA processing technology, specifically to an automatic flipping device for PCBA processing. Background Technology

[0002] PCBA boards are finished products that combine printed circuit boards (PCBs) with component soldering. The boards have resistors, capacitors, chips, inductors, rectangular ribbon cable sockets, etc., which enable electrical connections between components and thus complete specific circuit functions. In PCBA board processing, when there are components that need to be tested or have double-sided through holes (such as connectors, electrolytic capacitors, terminal blocks), a flipping device is used to flip the PCBA board to the other side. The current flipping device first uses a perspective camera to identify positioning mark points on the PCBA board to determine the board position and component distribution. The electric robot arm drives the pneumatic gripper to move to the edge of the PCBA board based on the camera positioning information. After the pneumatic gripper is ventilated, it clamps the board from both sides of the board edge through the rubber pads on the inner wall of the gripper. Then, the electric robot arm drives the pneumatic gripper holding the PCBA board to flip 180° according to a preset trajectory. During the flipping process, the perspective camera monitors the board position in real time. If there is a deviation, the electric robot arm will fine adjust its posture. After the flipping is in place, the electric robot arm moves the PCBA board to the next process position or the original position to complete the entire clamping and flipping action. However, existing technologies rely solely on a gripper design with a rubber pad, which suffers from a lack of protection during flipping: with only a single point of gripping by the rubber pad, if there is oil or oxide on the board edge, or if the robotic arm vibrates during flipping, the PCBA may slip out of the gripper, causing damage to the board. To address this, we propose an automatic flipping device for PCBA processing to solve the problems encountered in existing technologies. Utility Model Content

[0003] The purpose of this invention is to provide an automatic flipping device for PCBA processing to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automatic flipping device for PCBA processing, comprising a processing table and a controller. The upper end of the processing table is provided with an electric manipulator, a pneumatic gripper, and a vision camera. The gripping end of the pneumatic gripper is provided with a self-locking component for fitting the ribbon cable socket on the PCBA board. The self-locking component includes two horizontal rods and two vertical rods that are movably arranged around the ribbon cable socket.

[0005] Preferably, the controller is fixed to the right end of the processing table by bolts, and four positioning pins are fixed to the upper end of the processing table by bolts for positioning the PCBA board by cooperating with the positioning holes in the PCBA board.

[0006] Preferably, the upper end of the processing table is fixed to the electric manipulator by bolts, and the actuator end of the electric manipulator is fixed to the pneumatic gripper by a flange.

[0007] Preferably, both of the transverse rods are inserted into one end of the stationary claw of the pneumatic gripper, and a longitudinal rod is inserted into each transverse rod from front to back. Limiting screws are threaded into the upper end of the stationary claw of the pneumatic gripper and one end of the transverse rod for locking the transverse rod and the longitudinal rod. The longitudinal rod is L-shaped.

[0008] Preferably, the bottom wall of the moving claw of the pneumatic gripper is provided with an elastic element, the elastic element including an elastically configured base plate, and the inner wall of the base plate is integrally provided with a tooth block.

[0009] Preferably, a pin is inserted into the moving claw of the pneumatic gripper, and one end of the pin is fixed to the lower surface of the base plate by bolts. A spring is sleeved around the pin, one end of the spring is welded to the pulling end of the pin, and the other end of the spring is welded to the lower surface of the moving claw of the pneumatic gripper.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The beneficial effects of this utility model are as follows: This device initially adjusts the horizontal and vertical rods to form a frame that adapts to the ribbon cable socket of the PCBA board. Subsequently, it relies on a vision camera for positioning, allowing an electric robotic arm to drive the frame to fit the ribbon cable socket and form a mechanical lock. Then, a pneumatic gripper holds the board. This dual structure does not rely on the single friction of the rubber pad, and can resist insufficient friction caused by oil stains and oxide layers on the board edge, as well as interference from the vibration of the robotic arm, thus avoiding the PCBA board from slipping and falling during flipping. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of an automatic flipping device for PCBA processing.

[0012] Figure 2 This is a front view of an automatic flipping device for PCBA processing.

[0013] Figure 3 This is a schematic diagram showing the connection between the pneumatic gripper, self-locking component, and elastic component of an automatic flipping device for PCBA processing.

[0014] Figure 4 This is a right view of an automatic flipping device for PCBA processing.

[0015] Figure 5 An automatic flipping device for PCBA processing Figure 4 Enlarged view of point a in the middle.

[0016] Figure 6 This is a top view of an automatic flipping device for PCBA processing.

[0017] The following components are labeled in the diagram: 1. Processing table; 2. Controller; 3. PCBA board; 4. Electric robotic arm; 5. Pneumatic gripper; 6. Self-locking component; 61. Horizontal rod; 62. Vertical rod; 63. Limit screw; 7. Elastic component; 71. Base plate; 72. Tooth block; 73. Pin; 74. Spring; 8. Cable connector; 9. Positioning pin; 10. Vision camera. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1 to 6 As shown, an automatic flipping device for PCBA processing includes a processing table 1 and a controller 2. The upper end of the processing table 1 is provided with an electric manipulator 4, a pneumatic gripper 5 and a vision camera 10. The gripping end of the pneumatic gripper 5 is provided with a self-locking component 6 for fitting the ribbon cable socket 8 on the PCBA board 3. The self-locking component 6 includes two horizontal rods 61 and two vertical rods 62 that are movably arranged around the ribbon cable socket 8. The processing table 1 provides an installation and operation platform for the entire device. The controller 2 is responsible for receiving signals and controlling the operation of each component. The electric manipulator 4 is used to drive the pneumatic gripper 5 to move and flip. The pneumatic gripper 5 clamps the PCBA board 3. The vision camera 10 can identify the position of the PCBA board 3 and the distribution of the ribbon cable sockets 8, providing a basis for positioning. This is existing technology and will not be described in detail. The self-locking component 6 at the clamping end of the pneumatic gripper 5 forms a frame through two movable horizontal rods 61 and two vertical rods 62, which fits onto the ribbon cable sockets 8 on the PCBA board 3 to form a mechanical lock, enhancing clamping stability and ultimately realizing the automatic positioning, clamping, and flipping of the PCBA board 3.

[0020] Example 2: Reference Figures 1 to 6 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0021] Specifically, Figure 1 and Figure 4 In the middle, the controller 2 is fixed to the right end of the processing table 1 by bolts, and four positioning pins 9 are fixed to the upper end of the processing table 1 by bolts for positioning the PCBA board 3 by cooperating with the positioning holes in the PCBA board 3. The controller 2 provides control support for the overall operation of the device; the positioning pin 9 is used to cooperate with the positioning hole of the PCBA board 3 to achieve initial positioning and ensure the stability of the board position.

[0022] Specifically, Figure 1 In the middle, the upper end of the processing table 1 is fixed with an electric manipulator 4 by bolts, and the execution end of the electric manipulator 4 is fixed with a pneumatic gripper 5 by a flange; The electric manipulator 4 provides the power and trajectory support for the movement and rotation of the pneumatic gripper 5.

[0023] Specifically, Figure 3 In the middle, two transverse rods 61 are both inserted into one end of the stationary claw of the pneumatic gripper 5. Each transverse rod 61 is inserted into a longitudinal rod 62 from front to back. Limiting screws 63 are threaded into the upper end of the stationary claw of the pneumatic gripper 5 and one end of the transverse rod 61 to lock the transverse rod 61 and the longitudinal rod 62. The longitudinal rod 62 is L-shaped. A frame can be formed by passing a horizontal rod 61 through the stationary claw of the pneumatic gripper 5 and an L-shaped longitudinal rod 62 through the horizontal rod 61. The limiting screw 63 is used to lock the position of the horizontal rod 61 and the longitudinal rod 62, so as to realize the matching of the frame with the ribbon cable socket 8. It can be adapted to ribbon cable sockets 8 of different sizes, thereby increasing the compatibility with PCBA board 3.

[0024] Specifically, Figure 5 In the pneumatic gripper 5, the bottom wall of the moving gripper is provided with an elastic element 7, the elastic element 7 includes an elastically configured base plate 71, and the inner wall of the base plate 71 is integrally provided with a tooth block 72. The toothed block 72 can fit against the edge of the PCBA board 3, enhancing contact stability during clamping.

[0025] Specifically, Figure 5 In the pneumatic gripper 5, a pin 73 is inserted inside the moving claw, and one end of the pin 73 is fixed to the lower surface of the base plate 71 by bolts. A spring 74 is sleeved around the pin 73. One end of the spring 74 is welded to the pulling end of the pin 73, and the other end of the spring 74 is welded to the lower surface of the moving claw of the pneumatic gripper 5. Spring 74 provides elastic cushioning for substrate 71, preventing excessive clamping force from damaging PCBA board 3.

[0026] Working principle: The conveying mechanism places the PCBA board 3 on the upper end of the processing table 1, so that the four positioning pins 9 engage with the positioning holes of the PCBA board 3 to complete the initial positioning. When using it for the first time, loosen the limit screw 63, manually adjust the horizontal rod 61 and the vertical rod 62 in the stationary claw of the pneumatic gripper 5 so that the frame formed by the two matches the shape of the ribbon cable socket 8, and then tighten the limit screw 63 to lock it, thus completing the initial adaptation adjustment. During subsequent operations, the vision camera 10 identifies the position of the ribbon cable socket 8, and at the same time identifies the positioning MARK point of the PCBA board 3 and the position of the ribbon cable socket 8, and transmits the signal to the controller 2. The controller 2 controls the electric robot arm 4 to drive the pneumatic gripper 5 to move, so that the adapted horizontal bar 61 and vertical bar 62 frame fit the ribbon cable socket 8. Next, the pneumatic gripper 5 is ventilated, and the moving gripper moves towards the stationary gripper. The base plate 71 of the elastic element 7 on the bottom wall of the moving gripper is in contact with the edge of the PCBA board 3 under the cooperation of the pin 73 and the spring 74, and the tooth block 72 contacts the board body, completing the clamping. The electric robot 4 drives the pneumatic gripper 5 holding the PCBA board 3 to rotate 180° along a preset trajectory; After flipping into place, the electric robotic arm 4 moves the PCBA board 3 to the target position, the pneumatic gripper 5 releases the exhaust, and the electric robotic arm 4 drives the pneumatic gripper 5 to disengage the frame composed of the horizontal bar 61 and the vertical bar 62 from the ribbon cable socket 8, completing a single action.

[0027] 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.

[0028] 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 automatic flipping device for PCBA processing, comprising a processing table (1) and a controller (2), wherein the upper end of the processing table (1) is provided with an electric manipulator (4), a pneumatic gripper (5) and a vision camera (10), characterized in that: The pneumatic gripper (5) is provided with a self-locking component (6) at its gripping end for fitting the ribbon cable socket (8) on the PCBA board (3). The self-locking component (6) includes two horizontal rods (61) and two vertical rods (62) that are movably arranged around the ribbon cable socket (8).

2. The automatic flipping device for PCBA processing as described in claim 1, characterized in that: The right end of the processing table (1) is fixed with a controller (2) by bolts, and the upper end of the processing table (1) is fixed with four positioning pins (9) by bolts for positioning the PCBA board (3) in conjunction with the positioning holes in the PCBA board (3).

3. The automatic flipping device for PCBA processing as described in claim 2, characterized in that: The upper end of the processing table (1) is fixed with an electric manipulator (4) by bolts, and the execution end of the electric manipulator (4) is fixed with a pneumatic gripper (5) by a flange.

4. The automatic flipping device for PCBA processing as described in claim 1, characterized in that: Both of the transverse rods (61) are inserted into one end of the stationary claw of the pneumatic gripper (5). Each transverse rod (61) is inserted into a longitudinal rod (62) from front to back. Limiting screws (63) are threaded into the upper end of the stationary claw of the pneumatic gripper (5) and one end of the transverse rod (61) for locking the transverse rod (61) and the longitudinal rod (62). The longitudinal rod (62) is L-shaped.

5. The automatic flipping device for PCBA processing as described in claim 1, characterized in that: The bottom wall of the moving claw of the pneumatic gripper (5) is provided with an elastic element (7), the elastic element (7) includes an elastically configured base plate (71), and the inner wall of the base plate (71) is integrally provided with a tooth block (72).

6. The automatic flipping device for PCBA processing as described in claim 5, characterized in that: The pneumatic gripper (5) has a pin (73) inserted inside its moving gripper, and one end of the pin (73) is fixed to the lower surface of the substrate (71) by bolts.

7. The automatic flipping device for PCBA processing as described in claim 6, characterized in that: A spring (74) is sleeved around the pin (73). One end of the spring (74) is welded to the pulling end of the pin (73), and the other end of the spring (74) is welded to the lower surface of the moving claw of the pneumatic gripper (5).

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