X-RAY target drilling and feeding equipment for multi-layer PCB (Printed Circuit Board) processing

Abstract

The utility model relates to a target drilling and feeding device, in particular to an X-RAY target drilling and feeding device for multi-layer PCB (printed circuit board) processing. The X-RAY target drilling and feeding equipment for processing the multi-layer PCB comprises a base, a feeding table, a discharging plate and the like, the feeding table is fixedly arranged on the left portion of the base, and the discharging plate is arranged on the feeding table in a sliding mode. Before the target drilling feeding machine feeds materials to the target drilling machine, accurate pre-positioning can be carried out, the design is reasonable, accurate positioning is carried out through x-ray photographing and a positioning platform, the cooperation work of a collaborative robot and a graphic operation software system is carried out, alignment adjustment and plate placing work are automatically completed in the whole process, and the work efficiency is improved. Therefore, the risks that the PCB multilayer board is not damaged by human factors and mechanical board beating and time is wasted are avoided, the automatic feeding production speed is stable, accurate positioning is achieved, operation is efficient, labor is saved, the risk of personal injury is avoided, and long-time stable feeding is achieved.

Description

Technical Field

[0001] The utility model relates to a target drilling device, in particular to an X-RAY target drilling feeding device for processing a multi-layer PCB board. Background Art

[0002] PCB (Printed Circuit Board) is also called printed circuit board or printed circuit board. A multi-layer printed circuit board refers to a printed circuit board with more than two layers. It is composed of connecting wires on several layers of insulating substrates and pads for assembling and welding electronic components. It has the function of conducting the circuits of each layer and insulating them from each other.

[0003] After the PCB multilayer boards are laminated, when drilling the laminated PCB boards, the PCB boards are manually placed on the drilling machine for drilling. When placing the boards, the PCB boards are manually adjusted by visually judging the target information of the boards. Long-term work causes eye fatigue and physical fatigue, inefficient operation, high error rate and potential personal radiation risks. Mechanical positioning based on the board edge has the influence of glue and edge retention, resulting in inaccurate positioning and repeated positioning that wastes time. The value of PCB multilayer boards is higher than that of ordinary boards. The above-mentioned scrapping or waste of time increases the risk of cost and is not conducive to normal production. Utility Model Content

[0004] In order to overcome the shortcomings that when drilling and placing boards, people rely on visual judgment of board target information to adjust the board position and direction, long-term work causes eye fatigue and physical fatigue, inefficient operation, high error rate and potential personal radiation risk, and mechanical positioning by board edge patting, which has the influence of glue and edge retention, resulting in inaccurate positioning, repeated positioning and waste of time. The value of PCB multi-layer boards is higher than that of ordinary boards. Scrap or time waste caused by the above reasons will increase the cost risk, which is not conducive to normal production. The purpose is to provide an X-RAY group photography for precise positioning when drilling targets on PCB multi-layer boards, cooperate with the positioning platform and graphic computing software system to move the board position, and use a collaborative robot to take and place the board, and automatically adjust the alignment throughout the process, so as to solve the problem of damage and time waste caused by human factors and mechanical patting when drilling and placing PCB multi-layer boards. X-RAY drilling target feeding equipment for multi-layer PCB board processing

[0005] An X-RAY drilling target feeding equipment for multi-layer PCB board processing includes a base, a support base, a loading platform, a unloading platform, a feeding plate, a collaborative robot, a material retrieving rack, an X-RAY group, a first transmission group, a second transmission group and a positioning platform. A loading platform is fixedly provided at the lower left part of the top of the base, and an unloading platform is fixedly provided at the lower right part of the top of the base. The feeding plate is slidably provided on the loading platform and the unloading platform. A collaborative robot is installed at the front side of the top of the base, and a material retrieving rack is rotatably installed on the collaborative robot. The material retrieving rack consists of a mounting frame and a plurality of suction cups. A support base is fixedly provided at the rear side of the top of the base, and an X-RAY group is provided inside the support base. The X-RAY group consists of a positioning module and a discharge platform. A first transmission group is installed on the upper part of the discharge platform of the X-RAY group, and a second transmission group is installed on the first transmission group. Both the first transmission group and the second transmission group are composed of a frame, two guide rods, a lead screw and a servo motor. The lower part of the second transmission group is threadedly connected to the lead screw of the first transmission group, and is slidably connected to its two guide rods. A positioning platform is installed on the second transmission group. The lower part of the positioning platform is threadedly connected to the lead screw of the second transmission group, and is slidably connected to its two guide rods. The X-RAY group is connected to the servo motors of the first transmission group and the second transmission group through signals.

[0006] Further explanation: it also includes a material unloading table and a detector. The material unloading table is fixedly provided on the right side of the base. The material loading table and the material unloading table are both slidably provided with material discharge plates. The detector is installed on the mounting frame of the material picking rack. The detector is connected to the collaborative robot through signals.

[0007] Further description, it also includes a positioning cylinder and a positioning plate. The positioning cylinders are fixedly installed on the front and rear sides of the top of the unloading plate on the loading platform. The two positioning cylinders are symmetrically arranged. The movable rods of the positioning cylinders are fixedly connected to the positioning plates. The bottom of the positioning plate is in sliding contact with the unloading plate on the loading platform.

[0008] Further description, it also includes a bracket and an air jet pipe. The left side of the unloading plate on the loading platform is fixed with a step bracket, and the bracket is provided with an air jet pipe, which is composed of an air jet head and an air inlet joint.

[0009] Further explanation: it also includes a rodless cylinder, which is installed on the loading platform and the unloading platform. The lower parts of the discharge plates on the loading platform and the unloading platform are slidingly connected to the rodless cylinder on the same side, and the piston nuts of the two rodless cylinders are installed on the lower part of the discharge plate on the same side, driving the discharge plate on the same side to move.

[0010] The beneficial effects of the utility model are as follows: before the target drilling machine feeds materials to the target drilling machine, the utility model can perform accurate pre-positioning, has a reasonable design, and can automatically adjust the alignment and board placement work throughout the process by taking X-ray photos and accurately positioning the positioning platform, cooperating with the collaborative robot and the graphic computing software system, thereby solving the risk of damage and time waste caused by human factors and mechanical board clapping of the PCB multilayer board. The automatic feeding has a stable production speed, accurate positioning and efficient operation, saves labor, avoids the risk of personal injury, realizes long-term stable feeding, improves the overall automation level of the enterprise, reduces the risks encountered during production, and further optimizes the process while ensuring the excellent quality of the PCB multilayer board.

[0011] The utility model blows out high-pressure airflow through the nozzle of the air jet pipe, and the high-pressure airflow blows toward the stacked PCB boards. The airflow is blown into the gaps at the stacking places of the PCB boards to release the negative pressure between the boards, thereby reducing the situation where multiple PCB boards are overlapped when the collaborative robot takes the materials, and avoiding the simultaneous processing of multiple boards affecting the normal operation of the feeding and drilling equipment.

[0012] The utility model uses a feeding table and a detector to screen and remove defective PCB boards in any process, thereby avoiding invalid processing of defective PCB boards, reducing waste of time and processing procedures, and improving processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0014] Figure 2 It is a three-dimensional structural schematic diagram of the X-RAY group and positioning mechanism of the utility model.

[0015] Figure 3 It is a schematic diagram of the three-dimensional structure of the collaborative robot of the utility model.

[0016] Figure 4 It is a three-dimensional structural schematic diagram of the positioning mechanism of the utility model.

[0017] Figure 5 This is a schematic diagram of the three-dimensional structure of the practical positioning mechanism without the positioning platform.

[0018] Figure 6 It is a three-dimensional structural schematic diagram of the loading platform, unloading plate, rodless cylinder and other components of the utility model.

[0019] Markings in the accompanying drawings: 1: base, 2: support base, 3: loading table, 4: unloading table, 5: unloading plate, 6: collaborative robot, 7: material picking rack, 8: detector, 9: X: RAY group, 10: first transmission group, 101: second transmission group, 102: positioning platform, 11: positioning cylinder, 12: positioning plate, 13: bracket, 14: jet pipe, 16: rodless cylinder. DETAILED DESCRIPTION

[0020] The present invention will now be described more fully below with reference to the accompanying drawings, in which the present invention is shown in its currently preferred embodiments. However, the present invention can be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness, and these embodiments fully convey the scope of the present invention to the skilled person.

[0021] Embodiment 1: An X-RAY drilling target feeding device for multi-layer PCB processing, such as Figure 1-6 As shown, it includes a base 1, a support seat 2, a loading platform 3, a material discharge plate 5, a collaborative material robot 6, a material picker 7, an X-RAY group 9, a first transmission group 10, a second transmission group 101 and a positioning platform 102. The base 1 is used to support the whole of the equipment. The top of the base 1 is a flat supporting table, which is made of a harder material. The lower parts of the front and rear sides of the base 1 are provided with openings for easy fixed installation. The loading platform 3 is fixedly provided at the lower left part of the top of the base 1, and the unloading platform 4 is fixedly provided at the lower right part of the top of the base 1. A material discharge plate 5 is provided on the platform 3 in a sliding manner. The material discharge plate 5 on the loading platform 3 is used to stack PCB boards that have not been drilled. A collaborative robot 6 is fixedly installed on the front side of the top of the base 1. The collaborative robot 6 is a multi-joint manipulator or a multi-degree-of-freedom machine device. Under the preset program, it has a certain degree of automation and can complete the work of precise loading, moving and unloading. A material retrieving rack 7 is rotatably installed on the collaborative robot 6. The material retrieving rack 7 consists of a mounting frame and a plurality of suction cups. The collaborative robot 6 can drive the material retrieving rack 7 to complete actions such as rotation and flipping;

[0022] A support base 2 is fixedly arranged at the rear side of the top of the base 1, and an X-RAY group 9 is arranged inside the support base 2. The X-RAY group is composed of a positioning module and a material discharging platform. The positioning module of the X-RAY group 9 is composed of a lead room protection cover, an X-ray generator, an X-ray camera, etc. A first transmission group 10 is installed at the upper part of the material discharging platform of the X-RAY group 9, and a second transmission group 101 is installed on the first transmission group 10. The first transmission group 10 and the second transmission group 101 are both composed of a frame, two guide rods, a screw rod and a servo motor. The lower part of the second transmission group 101 The first transmission group 10 is threadedly connected to the lead screw of the first transmission group 10, and is slidably connected to the two guide rods. When the servo motor of the first transmission group 10 is working, it will drive the lead screw of the first transmission group 10 to rotate, and drive the second transmission group 102 to move back and forth on the first transmission group 10. Under the power output of the servo motor of the first transmission group 10, the second transmission group 101 can achieve precise movement of the distance. A positioning platform 102 is installed on the second transmission group 101. The lower part of the positioning platform 102 is threadedly connected to the lead screw of the second transmission group 101, and is slidably connected to the two guide rods. The guide rods are connected in a sliding manner. When the two guide rods of the first transmission group 10 and the second transmission group 101 are used to move the positioning platform 102, they can ensure its smooth movement. The second transmission group 101 can drive the positioning platform 102 to move left and right, and realize precise movement of the distance. The positioning platform 102 can move forward and backward and left and right with the cooperation of the first transmission group 10 and the second transmission group 101, and realize very precise positioning and movement. The X-RAY group 9 is connected to the servo motors of the first transmission group 10 and the second transmission group 101 through signals. The X-RAY group 9 accurately locates the target position of the PCB board through X-ray photography, and transmits the positioning signal to the two servo motors. The servo motor adjusts the position of the positioning platform 102 through the positioning signal of the X-RAY group 9. Through the cooperation of the graphic calculation software system of the X-RAY group 9, the positioning platform 102 can automatically adjust and align the PCB board. After the positioning is completed, the PCB board will be accurately placed on the board placement platform of the drilling machine outside the feeding equipment by the collaborative robot 6, and the drilling machine will locate the target after the target.

[0023] Initially, the unloading plate 5 on the loading table 3 is located at the left position of the loading table 3, and the X-RAY group 9 and the collaborative robot 6 are in standby state. People neatly stack the PCB boards that need to be drilled after lamination on the unloading plate 5 on the loading table 3. Then, the unloading plate 5 on the loading table 3 is pushed to the right to the loading position, and the collaborative robot 6 starts working according to the predetermined program: First, the collaborative robot 6 takes the top layer of PCB boards stacked on the unloading plate 5 of the loading table 3 through the suction cup on the material picking rack 7, places it on the positioning platform 102, and moves the MARK target point position in the inner layer of the PCB board to the field of view of the X-RAY group 9. The X-RAY group 9 adopts a high-performance X-ray generator. X-rays are emitted, and a high-pixel X-ray camera can accurately locate the size, position, shape and other information of the inner layer MARK target point of the PCB multilayer board on the positioning platform. The size, position, shape and other information of the MARK target positioning hole of the entire PCB multilayer board are calculated through the graphics calculation software system, and the information is output to the first transmission group 10 and the second transmission group 101, driving the PCB multilayer board on the positioning platform 102 to move to a precise position, and then communicate with the collaborative robot 6 through the software system. The collaborative robot 6 takes the adjusted PCB multilayer board from the positioning platform 102 and places it accurately on the drilling target machine platform outside the feeding equipment, and the drilling target machine performs precise positioning and drilling.

[0024] Embodiment 2: Based on embodiment 1, Figure 3 As shown, it also includes a feeding table 4 and a detector 8. The feeding table 4 is fixedly connected to the top right side of the base 1. The feeding table 3 and the feeding table 4 are both slidably provided with a discharge plate 5. The detector 8 is installed on the mounting frame of the material picking rack 7. The detector 8 is connected to the collaborative robot 6 through signals. The detector 8 will perform appearance inspection on the circuit board on the material picking rack 7. When a defect is detected in the PCB board on the material picking rack 7 in any process of the feeding work, the detector 8 will transmit the signal to the collaborative robot 6. After receiving the signal, the collaborative robot 6 will directly place the PCB board on the discharge plate 5 of the feeding table 4.

[0025] like Figure 1 and Figure 6 As shown, it also includes a positioning cylinder 11 and a positioning plate 12. The positioning cylinders 11 are fixedly installed on the front and rear sides of the top of the discharge plate 5 on the loading platform 3. The two positioning cylinders 11 are symmetrically arranged. The movable rods of the positioning cylinders 11 are fixedly connected with positioning plates 12. The positioning plate 12 is L-shaped. The right bend of the positioning plate 12 is used to support the right side of the lower PCB boards when the stacked PCB boards are placed. Through the push of the positioning cylinder 11, the positioning plates 12 on the front and rear sides will be pushed inward in opposite directions synchronously. When a PCB board is placed on the discharge plate 5 of the loading platform 3, it will be pushed to the relatively central position of the discharge plate 5 by the positioning plates 12 on both sides, and the bottom of the positioning plate 12 will be in sliding contact with the discharge plate 5 on the loading platform 3.

[0026] like Figure 1 and Figure 6 As shown, it also includes a bracket 13 and an air jet pipe 14. The left side of the unloading plate 5 on the loading platform 3 is fixedly connected with the bracket 13, and the bracket 13 is provided with an air jet pipe 14. The air jet pipe 14 consists of an air jet head and an air inlet joint. The external high-pressure airflow can be connected to the air jet pipe 14 through the air inlet joint and blown out through the air jet head. When the PCB boards are stacked on the unloading plate 5 on the loading platform 3, the airflow will flow to the stacked PCB boards, and the high-pressure airflow will be blown into the gaps between the stacked PCB boards to avoid the air between the two boards being squeezed out when the overly smooth PCB boards are stacked and squeezed, forming a negative pressure, and the two PCB boards are adhered to each other. When the collaborative robot 6 takes the materials, it takes multiple pieces of materials at one time.

[0027] like Figure 1 and Figure 6 As shown, it also includes a rodless cylinder 16. The rodless cylinder 16 is installed on the loading platform 3 and the unloading platform 4. The lower parts of the discharge plates 5 on the loading platform 3 and the unloading platform 4 are slidingly connected to the rodless cylinder 16 on the same side. The piston nuts of the two rodless cylinders 16 are installed on the lower parts of the discharge plates 5 on the same side, driving the discharge plates 5 on the same side to move. The automatic movement of the discharge plates 5 is realized by the rodless cylinder, driving the PCB board to move, without manual push.

[0028] Initially, the unloading plate 5 on the unloading table 4 is located at the waiting position on the left side of the unloading table 4. The unloading plates 5 on the loading table 3 and the unloading table 4 will automatically move by the rodless cylinder 16 to realize automatic loading and unloading. When the unloading plate 5 on the loading table 3 needs to be fed, the stacked PCB boards are placed on the unloading plate 5. When placing, the right side of the several PCB boards stacked below needs to contact the right inner side of the bending part of the positioning plate 12. After placement, the positioning cylinder 11 is controlled to extend the movable rod. The positioning plates 12 on the front and rear sides are pushed inwardly and oppositely under the push of the two positioning cylinders 11, and the stacked PCB boards are pushed as a whole to the center position of the unloading plate 5, which is convenient for the collaborative robot 6 to take the material accurately when taking the material, and the high-pressure airflow is connected to the air jet pipe 14. The high-pressure airflow is blown to the stacked PCB boards through the air jet head of the air jet pipe 14. CB board, by blowing air into the gaps at the stacking of PCB boards, the negative pressure state between the boards is relieved, so as to reduce the overlap of multiple boards when the collaborative robot 6 takes the materials. At the same time, the detector 8 installed on the material picking rack 7 of the collaborative robot 6 will perform full-process inspection on the PCB boards taken by the collaborative robot 6. When defects are detected in a certain process, the collaborative robot 6 will place the PCB board directly on the discharge plate 5 of the unloading table 4, and will stack the defective PCB boards when placing them, so that they can be taken away at one time. Through the unloading table 4 and the detector 8, defective PCB boards can be screened and eliminated in any process during the feeding, so as to avoid invalid processing of defective PCB boards, reduce the waste of time and processing steps, and improve processing efficiency.

[0029] It should be understood that the above description is only for exemplary purposes and is not intended to limit the present invention. Those skilled in the art will understand that variations of the present invention will be included within the scope of the claims herein.

Claims

1. An X-RAY drilling target feeding device for processing multi-layer PCB boards, comprising a base (1), a loading platform (3), and a discharge plate (5), wherein the loading platform (3) is fixedly provided at the lower left portion of the top of the base (1), and the discharge plate (5) is slidably provided on the loading platform (3); Its characteristics are: The invention also includes a support base (2), a collaborative robot (6), a material taking frame (7), an X-RAY group (9), a first transmission group (10), a second transmission group (101) and a positioning platform (102). The collaborative robot (6) is installed on the front side of the top of the base. The material taking frame (7) is rotatably installed on the collaborative robot (6). The material taking frame (7) consists of a mounting frame and a plurality of suction cups. The support base (2) is fixedly provided on the rear side of the top of the base (1). The X-RAY group (9) is provided inside the support base (2). The X-RAY group (9) consists of a positioning module and a material discharging platform. The first transmission group (10) is installed on the upper part of the material discharging platform of the X-RAY group (9). A second transmission group (101) is installed on a transmission group (10). Both the first transmission group (10) and the second transmission group (101) are composed of a frame, two guide rods, a screw rod and a servo motor. The lower portion of the second transmission group (101) is threadedly connected to the screw rod of the first transmission group (10) and is slidably connected to the two guide rods. A positioning platform (102) is installed on the second transmission group (101). The lower portion of the positioning platform (102) is threadedly connected to the screw rod of the second transmission group (101) and is slidably connected to the two guide rods. An X-RAY group is connected to the servo motors of the first transmission group (10) and the second transmission group (101) through signals.

2. The X-RAY drilling target feeding device for multi-layer PCB processing according to claim 1, characterized in that: The invention also includes a material unloading platform (4) and a detector (8). The material unloading platform (4) is fixedly provided on the right side of the base (1). Material unloading plates (5) are slidably provided on the material loading platform (3) and the material unloading platform (4). The detector (8) is installed on the mounting frame of the material taking frame (7). The detector (8) is connected to the collaborative robot (6) through a signal.

3. The X-RAY drilling target feeding device for multi-layer PCB processing according to claim 2, characterized in that: The utility model also comprises a positioning cylinder (11) and a positioning plate (12). The positioning cylinders (11) are fixedly installed on both the front and rear sides of the top of the discharge plate (5) on the loading platform (3). The two positioning cylinders (11) are symmetrically arranged. The movable rods of the positioning cylinders (11) are fixedly connected with the positioning plates (12). The bottom of the positioning plates (12) is in sliding contact with the discharge plate (5) on the loading platform (3).

4. The X-RAY drilling target feeding device for multi-layer PCB processing according to claim 3 is characterized in that: The utility model also comprises a bracket (13) and an air jet pipe (14); the left side of the discharge plate (5) on the loading platform (3) is fixed with the stage bracket (13); the bracket (13) is provided with an air jet pipe (14); and the air jet pipe (14) is composed of an air jet head and an air inlet joint.

5. The X-RAY drilling target feeding device for multi-layer PCB processing according to claim 4 is characterized in that: The utility model also includes a rodless cylinder (16), and the rodless cylinder (16) is installed on the loading platform (3) and the unloading platform (4). The lower parts of the unloading plates (5) on the loading platform (3) and the unloading platform (4) are slidably connected to the rodless cylinder (16) on the same side. The piston nuts of the two rodless cylinders (16) are installed on the lower part of the unloading plate (5) on the same side to drive the unloading plate (5) on the same side to move.

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