Backflow jig for board splitting and plate placing equipment and board splitting mode

Abstract

The invention relates to the technical field of printed circuit board manufacturing equipment, in particular to a reflow jig for board splitting and plate placing equipment and a board splitting mode, the reflow jig for the board splitting and plate placing equipment comprises a jig body, the upper surface of the jig body is provided with a board carrying area used for placing a printed circuit board, and the board carrying area is provided with a board clamping area used for clamping the printed circuit board. The lower surface of the jig body is provided with a rail groove used for being matched with a rail, the upper surface of the plate carrying area is lower than the upper surface of the jig body, and the plate carrying area is provided with a plurality of first hollowed-out areas used for a plate dividing machine to cut the connecting ribs. The device has the effect of improving the plate splitting and model changing efficiency.

Description

Technical Field

[0001] This application relates to the technical field of printed circuit board manufacturing equipment, and particularly to a reflow fixture for a board splitting and placing device and a board splitting mode. Background Art

[0002] In the manufacturing process of printed circuit boards (PCBs), the application of automated production lines has greatly improved production efficiency and product quality. The PCB processing flow usually involves multiple processes, such as soldering, board splitting, inspection, etc., and these processes often require multiple devices to cooperate. With the trend of miniaturization and complexity of electronic products, higher requirements are put forward for the processing accuracy and speed of PCBs. Therefore, the development of efficient automated production equipment and technologies has become a research hotspot in the industry.

[0003] Currently, in the field of PCB processing, there are various common board splitting and placing methods. Among them, the shuttle drive board splitting mode is the most commonly used method. However, during the board splitting process of the shuttle drive board splitting mode, the gripper needs to grab and move the product to the shuttle. During the movement of the gripper, the equipment does not cut, resulting in low production efficiency. And there is a risk of damaging the parts during the placement process. After the shuttle is full, it is transferred to the next workstation, leading to low efficiency. During the changeover operation, two sets of shuttles need to be disassembled and installed, and after installation, the software needs to verify the coordinate parameters, resulting in a long changeover time. Summary of the Invention

[0004] To improve the board splitting and changeover efficiency, this application provides a reflow fixture for a board splitting and placing device.

[0005] In a first aspect, the reflow fixture for a board splitting and placing device provided by this application adopts the following technical solution:

[0006] A reflow fixture for a board splitting and placing device includes a fixture body. The upper surface of the fixture body is provided with a carrier area for placing the printed circuit board. The lower surface of the fixture body is provided with a track groove for cooperating with a track. The upper surface of the carrier area is lower than the upper surface of the fixture body. The carrier area is provided with a plurality of first hollow areas for a board splitting machine to cut the connecting ribs.

[0007] By adopting the above technical solution, the first hollow areas allow the board splitting machine to accurately cut the connecting ribs, ensuring that each single board is separated more thoroughly and smoothly. The track groove design enables the track to be easily matched with reflow fixtures for board splitting and placing devices of different models, reducing the downtime caused by replacing reflow fixtures for board splitting and placing devices of different models, and improving the overall efficiency of the production line.

[0008] Optionally, the carrier area is provided with a plurality of limiting ribs for limiting the single board on the printed circuit board, the limiting ribs are arranged in a trapezoidal shape, the width of the top of the limiting ribs is smaller than the distance between the single boards, the width of the bottom of the limiting ribs is larger than the distance between the single boards, and the width of the limiting ribs at half the height is equal to the distance between the single boards.

[0009] By adopting the above technical solution, the design of the limiting ribs can not only effectively limit the single board on the printed circuit board to prevent it from displacement or misalignment during the board separation process, but also the limiting ribs with a trapezoidal structure can provide a certain buffer space when the connecting ribs connected to the single board are cut, so as to prevent the single board from being deformed or damaged due to excessive extrusion. In addition, the width of the limiting rib at half the height is equal to the distance between the single boards. This design allows the limiting ribs to provide stable limiting while ensuring that there is an appropriate gap between the single board and the fixture, which is conducive to the uniform transfer and heat dissipation of heat and reduces the contact between the single board surface and the fixture, further improving the efficiency of board separation and the quality of the single board after board separation.

[0010] Optionally, the carrier area is provided with a positioning cone for cooperating with the positioning hole, the positioning cone is arranged in a truncated cone shape, the diameter of the top of the positioning cone is smaller than the diameter of the positioning hole, the diameter of the bottom of the positioning cone is larger than the diameter of the positioning hole, and the diameter of the positioning cone at half the height is equal to the diameter of the positioning hole.

[0011] By adopting the above technical solution, the positioning cone design ensures the precise alignment of the printed circuit board on the reflow fixture used in the depaneling equipment, improves the accuracy and stability of the equipment's automated operation, and reduces the product defect rate caused by position deviation. At the same time, this structure simplifies the installation and disassembly process and improves production efficiency.

[0012] Optionally, the board carrier area is provided with a plurality of second hollow areas for observing the existence status of the single board, and the second hollow areas correspond to the positions of the single boards one by one.

[0013] By adopting the above technical solution, the design of the second hollow area enables the plating robot to accurately observe whether the single board is on the reflow jig used in the panel separation and plating equipment, ensuring that the clamping action of the plating robot is more accurate and reliable, avoiding production errors caused by misjudgment, and improving the work efficiency and product quality of the entire production line.

[0014] Optionally, the board carrying area is provided with a plurality of third hollow areas for the jaws of the board separator to pass through, and the third hollow areas correspond one to one to both sides of the position where the single board is located.

[0015] By adopting the above technical solution, it is possible to ensure that the jaws of the splitter can accurately contact the positions on both sides of the single board, thereby improving the accuracy and stability of the splitting operation. In addition, the design of the third hollow area ensures that the splitting process will not be disturbed by the fixture body, further improving the efficiency and quality of the splitting.

[0016] Optionally, an avoidance groove for grasping the frame is provided on the upper surface of the fixture body.

[0017] By adopting the above technical solution, the avoidance groove enables the manipulator to grasp and place the printed circuit board frame more conveniently and accurately, improving the efficiency and stability of the automated production line. This design avoids grasping failures caused by structural interference and ensures the smooth progress of the production process.

[0018] Optionally, a movement direction mark is provided at one end of the upper surface of the fixture body, and / or a movement direction mark is provided at the carrier plate area.

[0019] By adopting the above technical scheme, the setting of the movement direction mark can clearly indicate the moving direction of the reflow jig for the depaneling and plating equipment on the production line. On the one hand, it can enable the machine to determine the placement direction of the reflow jig for the depaneling and plating equipment through visual detection. On the other hand, it can allow inspectors to make timely judgments to prevent equipment failure or production stagnation caused by misjudgment of the equipment, thereby improving production efficiency and reliability.

[0020] In the second aspect, a board splitting mode provided by the present application adopts the following technical solution:

[0021] A board splitting mode includes the following steps:

[0022] S1. The printed circuit board enters the transfer machine through the conveyor belt, and the PCB grabbing module sucks the printed circuit board from the conveyor belt and puts it on the reflow fixture;

[0023] S2. The reflow fixture carrying the printed circuit board enters the depaneling machine for depaneling. After depaneling is completed, the reflow fixture carrying the single board 102 and the frame 101 enters the panning station;

[0024] S3. The plate-staging robot at the staging station grabs the single board 102 on the reflow fixture and puts it into the tray;

[0025] S4. After the plate is placed, the reflow fixture is transferred to the second track entrance of the board separator;

[0026] S5. The second track reflow fixture of the board separator returns to the feeder to remove the frame 101 and load a new printed circuit board, entering the next cycle.

[0027] By adopting the above technical solution, a total of three reflow fixtures are required in the whole process, enabling the feeder, the board splitting machine and the board placing machine to work simultaneously, thus achieving the highest production efficiency. During the board splitting process, the product does not need to be moved, ensuring that the board splitting machine can work continuously and efficiently, and avoiding the risk of bumps caused by handling, improving the product quality.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. By setting a carrier board area and a first hollow area on the fixture body, it effectively supports the printed circuit board and facilitates the board splitting machine to cut the connecting ribs, improving the accuracy and efficiency of board splitting;

[0030] 2. The lower surface of the fixture body is provided with a track groove, enabling the reflow fixture for the board splitting and placing equipment to smoothly cooperate with the track, ensuring stability and accuracy during the whole production process. At the same time, due to the simple cooperation method and the need not to conduct coordinate verification, the downtime caused by model change is reduced;

[0031] 3. During the board splitting process, the product does not need to be moved, thus avoiding the risk of bump damage. The continuous operation of the board splitting machine ensures high production efficiency. After completing the board splitting operation, the reflow fixture for the board splitting and placing equipment continues to carry the split single board and directly transports it to the next process. Through the board placing operation, the single board at the reflow fixture for the board splitting and placing equipment is moved to the Tray tray, and the empty reflow fixture for the board splitting and placing equipment recirculates. This production method significantly improves the production speed. Description of the Drawings

[0032] Figure 1 is a schematic structural view of the printed circuit board provided by the embodiment of the present application.

[0033] Figure 2 is a schematic structural view of the reflow fixture for the board splitting and placing equipment provided by the embodiment of the present application.

[0034] Figure 3 is a schematic structural view of the reflow fixture for the board splitting and placing equipment from another angle provided by the embodiment of the present application.

[0035] Figure 4 is a schematic structural view of the assembled reflow fixture for the board splitting and placing equipment and the printed circuit board provided by the embodiment of the present application.

[0036] Figure 5 is a schematic structural view of the assembled reflow fixture for the board splitting and placing equipment and the printed circuit board from another angle provided by the embodiment of the present application.

[0037] Figure 6 is a schematic flow chart of the board splitting mode provided by the embodiment of the present application.

[0038] Explanation of the reference numerals: 101 - frame; 102 - single board; 103 - connecting rib; 104 - positioning hole; 201 - board loading area; 202 - track groove; 203 - first hollow area; 204 - limiting rib; 205 - positioning cone; 206 - second hollow area; 207 - third hollow area; 208 - avoidance groove; 209 - movement mark. DETAILED DESCRIPTION

[0039] The following is combined with Figures 1-6 This application is described in further detail.

[0040] like Figure 1 As shown, the printed circuit board has a frame 101 and a plurality of single boards 102 arranged in a rectangular array, the single board 102 has a long side and a short side, the short side of the single board 102 is fixedly connected to the frame 101 through a connecting rib 103, and a positioning hole 104 is provided on the frame 101. The spacing between the two adjacent long sides of any two adjacent single boards 102 is equal to the spacing between the short side and the frame 101, and is also equal to the spacing between the outer long side of the single board 102 located at the edge and the frame 101.

[0041] The embodiment of the present application discloses a reflux jig for a plate separation and plate placing device (hereinafter referred to as the reflux jig).

[0042] like Figure 2 and Figure 3 As shown, the reflow jig includes a jig body, the upper surface of the jig body is provided with a carrier area 201 for placing a printed circuit board, the lower surface of the jig body is provided with a track groove 202 for cooperating with the track, the upper surface of the carrier area 201 is lower than the upper surface of the jig body, and the carrier area 201 is provided with a plurality of first hollow areas 203 for a panel splitter to cut the connecting ribs 103.

[0043] The first hollow area 203 allows the board splitter to accurately cut the connecting ribs 103 from the lower surface of the fixture body, ensuring that each single board 102 is separated more thoroughly and smoothly. The track groove 202 design allows the track to be easily matched with different types of reflow fixtures, reducing the downtime caused by changing different types of reflow fixtures and improving the overall efficiency of the production line.

[0044] like Figure 2 and Figure 4 As shown, in order to position the single board 102 separated from the frame 101 after cutting, the board loading area 201 is provided with a plurality of limiting ribs 204, which are used to accurately limit the single board 102 separated from the frame 101. Specifically, the limiting ribs 204 are designed in a trapezoidal shape, the top width of which is smaller than the spacing between the single boards 102, and the bottom width is larger than the spacing between the single boards 102, and the width of the limiting ribs 204 at half the height is exactly equal to the spacing between the single boards 102.

[0045] The design of the limiting rib 204 can not only effectively limit the single board 102 on the printed circuit board before board splitting, preventing it from shifting or misaligning during the board splitting process. During the board splitting process, the trapezoidal limiting rib 204 can also provide a certain buffer space when the connecting rib 103 connected to the single board 102 is cut, avoiding deformation or damage of the single board 102 due to excessive extrusion. In addition, the width at the half-height position of the limiting rib 204 is equal to the distance between the single board 102. This design enables the limiting rib 204 to provide stable limitation while ensuring an appropriate gap between the single board 102 and the fixture, which is conducive to uniform heat transfer and heat dissipation, and reduces the contact between the surface of the single board 102 and the fixture, further improving the board splitting efficiency and the quality of the single board 102 after board splitting.

[0046] As Figure 2 and Figure 4 shown, the carrier board area 201 is provided with positioning cones 205 for cooperating with the positioning holes 104. The positioning cones 205 are arranged in a frustum shape. The diameter of the top of the positioning cone 205 is smaller than the diameter of the positioning hole 104, the diameter of the bottom of the positioning cone 205 is larger than the diameter of the positioning hole 104, and the diameter at the half-height position of the positioning cone 205 is equal to the diameter of the positioning hole 104.

[0047] The design of the positioning cone 205 ensures the precise alignment of the printed circuit board on the reflow fixture, thereby improving the accuracy and stability of the automated operation of the equipment and effectively reducing the defective rate of products caused by position deviation. In addition, the design of the positioning cone 205 also simplifies the installation and disassembly process, thus improving the production efficiency.

[0048] As Figure 2 、 Figure 3 and Figure 5 shown, the carrier board area 201 is provided with a plurality of second hollow areas 206 for observing the presence state of the single board 102. The second hollow areas 206 correspond to the positions of the single board 102 one by one. The design of the second hollow areas 206 enables the palletizing robot to accurately observe whether the single board 102 exists on the reflow fixture, ensuring that the clamping action of the palletizing robot is more accurate and reliable, avoiding production errors caused by misjudgment, and improving the working efficiency and product quality of the entire production line.

[0049] At the same time, as Figure 2 、 Figure 3 and Figure 5As shown, the carrier board area 201 is provided with a plurality of third hollow areas 207 for the jaws of the board splitting machine to pass through, and the third hollow areas 207 correspond one by one to both sides of the position where the single board 102 is located. The design of the third hollow areas 207 can ensure that the jaws of the board splitting machine accurately contact the positions on both sides of the single board 102, thereby improving the accuracy and stability of the board splitting operation. In addition, the design of the third hollow areas 207 enables the board splitting process not to be interfered by the fixture body, further improving the board splitting efficiency and quality.

[0050] As Figure 2 and Figure 4 shown, the upper surface of the fixture body is provided with an avoidance groove 208 for grasping the frame 101. The avoidance groove 208 enables the manipulator to more conveniently and accurately grasp and place the printed circuit board frame 101, improving the efficiency and stability of the automated production line. This design avoids the grasping failure caused by structural interference and ensures the smooth progress of the production process.

[0051] As Figure 2 and Figure 4 shown, one end of the upper surface of the fixture body is provided with a moving direction mark 209, and the carrier board area 201 is also provided with the moving direction mark 209. The setting of the moving direction mark 209 can clearly indicate the moving direction of the reflow fixture on the production line. On the one hand, it enables the machine to judge the placement direction of the reflow fixture through visual inspection, and on the other hand, it can be used by the inspection personnel to judge in time to prevent equipment misjudgment from causing equipment failure or production stagnation, improving production efficiency and reliability.

[0052] The embodiment of the present application also discloses a board splitting mode.

[0053] As Figure 6 shown, the board splitting mode includes the following steps:

[0054] S1. The printed circuit board enters the feeder through the conveyor belt, and the PCB grasping module sucks the printed circuit board from the conveyor belt and places it on the reflow fixture;

[0055] S2. The reflow fixture carrying the printed circuit board enters the board splitting machine for splitting. After splitting, the reflow fixture carrying the single board 102 and the frame 101 enters the tray placing station;

[0056] S3. The tray placing robot at the tray placing station grabs the single board 102 on the reflow fixture and places it in the Tray;

[0057] S4. After tray placing, the reflow fixture reaches the entrance of the second track of the board splitting machine through transplantation;

[0058] S5. Through the second track of the board splitting machine, the reflow fixture returns to the feeder to remove the frame 101 and load a new printed circuit board, entering the next cycle.

[0059] A total of three reflow fixtures for the sub-board placement equipment are required for the total cycle, enabling the feeder, sub-board machine, and placement machine to work simultaneously, thereby achieving the highest production efficiency. During the sub-boarding process, the product does not need to be moved, ensuring that the sub-board machine can work continuously and efficiently, and avoiding the risk of bumps caused by handling, improving the product quality.

[0060] The above are all preferred embodiments of this application. The protection scope of this application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A reflow fixture for a plate-splitting device, used for supporting a printed circuit board, wherein the printed circuit board comprises a frame (101) and a plurality of single boards (102) arranged in a rectangular array, wherein the short sides of the single boards (102) are fixedly connected to the frame (101) via connecting ribs (103), and the frame (101) has positioning holes (104), characterized in that: include: A jig body, wherein the upper surface of the jig body is provided with a carrier area (201) for placing the printed circuit board, the lower surface of the jig body is provided with a track groove (202) for matching with the track, the upper surface of the carrier area (201) is lower than the upper surface of the jig body, and the carrier area (201) is provided with a plurality of first hollow areas (203) for a panel splitter to cut the connecting ribs (103).

2. The reflux fixture for the plate separation and plate-stirring equipment according to claim 1, characterized in that: The carrier area (201) is provided with a plurality of limiting ribs (204) for limiting the single boards (102) on the printed circuit board; the limiting ribs (204) are arranged in a trapezoidal shape; the width of the top of the limiting ribs (204) is smaller than the distance between the single boards (102); the width of the bottom of the limiting ribs (204) is larger than the distance between the single boards (102); and the width of the limiting ribs (204) at a position of half the height is equal to the distance between the single boards (102).

3. The reflux fixture for the plate separation and plate-stirring equipment according to claim 2, characterized in that: The carrier area (201) is provided with a positioning cone (205) for matching with the positioning hole (104); the positioning cone (205) is arranged in a truncated cone shape; the diameter of the top of the positioning cone (205) is smaller than the diameter of the positioning hole (104); the diameter of the bottom of the positioning cone (205) is larger than the diameter of the positioning hole (104); and the diameter of the positioning cone (205) at a half height position is equal to the diameter of the positioning hole (104).

4. The reflux fixture for the plate separation and plate-stirring equipment according to claim 1, characterized in that: The carrier area (201) is provided with a plurality of second hollow areas (206) for observing the existence status of the single board (102), and the second hollow areas (206) correspond to the positions of the single board (102) one by one.

5. The reflux fixture for the plate separation and plate-stirring equipment according to claim 1, characterized in that: The board carrier area (201) is provided with a plurality of third hollow areas (207) for the clamping claws of the board separator to pass through, and the third hollow areas (207) correspond one-to-one to the two sides of the position where the single board (102) is located.

6. The reflux fixture for the plate separation and plate-stirring equipment according to claim 1, characterized in that: An avoidance groove (208) for grasping the frame (101) is provided on the upper surface of the fixture body.

7. The reflux fixture for the plate separation and plate-stirring equipment according to claim 1, characterized in that: One end of the upper surface of the fixture body is provided with a movement direction mark (209), and / or the carrier area (201) is provided with a movement direction mark (209).

8. A board splitting mode, characterized in that: The following steps are involved: S1. The printed circuit board enters the transfer machine through the conveyor belt, and the PCB grabbing module sucks the printed circuit board from the conveyor belt and puts it on the reflow fixture; S2. The reflow jig carrying the printed circuit board enters the depaneling machine for depaneling. After depaneling is completed, the reflow jig carrying the single board and frame enters the tray placement station; S3. The tray robot at the tray station picks up the single board on the reflow fixture and puts it into the tray; S4. After the plate is placed, the reflow fixture is transferred to the second track entrance of the board separator; S5. The reflow fixture of the second track of the board separator returns to the feeder to remove the frame and load a new printed circuit board to enter the next cycle.

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