JP3908948B2 - Parts assembly equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a component assembling apparatus for delivering a printed circuit board to a downstream apparatus after assembling the printed circuit board inherited from the upstream apparatus by performing a predetermined operation.
[0002]
[Prior art]
In such a component assembling apparatus, conventionally, a position indicating a printed circuit board conveyed in the assembling apparatus is displayed on a display device.
[0003]
[Problems to be solved by the invention]
However, since the position indicating the printed board to be transported in the assembling apparatus is only displayed on the display device, what state the printed board is currently in, for example, before the assembly work is performed. It has not been easy for the operator to check the state of whether it is in a state, whether the assembly work has been completed, or in an unworked state.
[0004]
That is, in order to confirm the state of the printed circuit board in the assembling apparatus, this worker looks into the printed circuit board in the assembling apparatus or takes out the printed circuit board from the assembling apparatus. It had to be done by checking.
[0005]
In view of the above, the present invention has an object to provide a component assembling apparatus that can easily confirm in which position and in what state the printed circuit board in the assembling apparatus is in. To do.
[0006]
[Means for Solving the Problems]
Therefore, according to a first aspect of the present invention, there is provided a component assembly apparatus in which a printed circuit board inherited from an upstream apparatus is transported to a positioning unit, subjected to predetermined operations and assembled, and then transported and delivered to the downstream apparatus. A supply conveyor that conveys the printed circuit board inherited from the upstream device to the positioning unit, a discharge conveyor that conveys the printed circuit board after being assembled by performing a predetermined operation, and delivers it to the downstream device, and before the assembly operation Provided with a display device that changes the display of each printed circuit board at each position of the positioning unit, the supply conveyor, the discharge conveyor, etc. for each state of the printed circuit board, such as assembly work completed or assembly work incomplete It is characterized by that.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. As a component assembly device, an adhesive application device that applies an adhesive onto a printed circuit board, a screen printer that applies solder paste, and an electronic component are mounted. There are electronic component mounting apparatuses and the like. Here, the electronic component mounting apparatus will be described as an example.
[0010]
FIG. 1 is a plan view of an electronic component mounting apparatus 1 as a component assembling apparatus. Components that supply various electronic components one by one to a component take-out portion (component adsorption position) on a base 2 of the apparatus 1. A plurality of supply units 3 are arranged in parallel.
[0011]
A supply conveyor 4, a positioning unit 5, and a discharge conveyor 6 are provided on the base 2 between the opposed parts supply unit 3 groups. The supply conveyor 4 transports the printed circuit board P received from an upstream device (not shown) to the positioning unit 5, and electronic components are mounted on the board P positioned by the positioning unit 5 (not shown). Then, it is conveyed to the discharge conveyor 6 and then delivered to a downstream device (not shown).
[0012]
Then, along the guides 5C provided between the fixed chute 5A and the fixed member 5B of the positioning portion 5, the movable chute 5D is adjusted to the size of the printed circuit board P by the drive motor 5F in the Y direction (conveying direction and It is possible to move in an orthogonal direction.
[0013]
As shown in FIG. 2, the fixed chute 5A and the movable chute 5D of the positioning unit 5 are provided with a driving roller 9 and a plurality of rollers 10 that are rotated by a driving motor 5F via a driving circuit 5E shown in FIG. A conveyor belt 11 stretched between the printed circuit boards P is provided, and the printed circuit board P can be conveyed.
[0014]
The movable chute 4D can be moved in the Y direction according to the size of the printed circuit board P by the drive motor 4F along the guide 4C provided between the fixed chute 4A and the fixed member 4B of the supply conveyor 4. .
[0015]
As shown in FIG. 2, the fixed chute 4A and the movable chute 4D of the supply conveyor 4 are provided with a driving roller 15 and a plurality of rollers 16 which are rotated by a driving motor 4F via a driving circuit 4E shown in FIG. A conveyor belt 17 stretched between the printed circuit boards P is provided, and the printed circuit board P can be conveyed.
[0016]
The movable chute 6D can be moved in the Y direction according to the size of the printed circuit board P by the drive motor 6F along the guide 6C provided between the fixed chute 6A and the fixed member 6B of the discharge conveyor 6. .
[0017]
As shown in FIG. 2, the fixed chute 6A and the movable chute 6D of the discharge conveyor 6 have a driving roller 21 and a plurality of rollers 22 that are rotated by a driving motor 6F via a driving circuit 6E shown in FIG. A conveyor belt 23 stretched between the printed circuit boards P is provided, and the printed circuit board P can be conveyed.
[0018]
Reference numerals 30A and 30B denote a pair of beams that are long in the X direction, and a printed board P or component supply unit that is fixed to the positioning unit 5 along a pair of left and right guides 31 by rotating a screw shaft by driving a Y-axis motor 50. 3 above the part take-out part (part suction position) individually in the Y direction.
[0019]
Each of the beams 30A and 30B is provided with mounting heads 32A and 32B that move along the guide by the X-axis motor 49 in the longitudinal direction, that is, the X direction. Each mounting head 32A or 32B is equipped with a vertical shaft motor 52 for moving the four suction nozzles 33 up and down, and a θ-axis motor 51 for rotating around the vertical axis. Accordingly, the suction nozzles 33 of the two mounting heads 32A and 32B can move in the X direction and the Y direction, can rotate about the vertical axis, and can move up and down.
[0020]
Reference numeral 34 denotes a component recognition camera for component position recognition, which is provided in correspondence with each of the mounting heads 32A and 32B, and how much the electronic component is displaced and held with respect to the suction nozzle 33 in the XY directions. In addition, the electronic component is imaged to recognize the position of the rotation angle.
[0021]
Reference numerals 35 and 35 denote nozzle stockers for storing various suction nozzles 13 for replacement of the suction nozzle 13.
[0022]
Then, the cables and air tubes for the mounting heads 32A and 32B are arranged in parallel and fixed with an adhesive to form a flat cable 36 and 36 in a substantially flat shape, and one end thereof is connected to each motor or the like. Then, the other end is connected to a control circuit board (not shown) and an air supply source (not shown).
[0023]
Next, in FIG. 3, reference numeral 40 denotes a CPU (mounting control unit) as a control unit that performs overall control of the mounting apparatus 1. The CPU 40 is connected to a RAM (Random Access Memory) 42 and a ROM (ROM) via a bus line. A read only memory) 43 is connected. Based on the data stored in the RAM 42, the CPU 40 controls the operation related to the component mounting operation of the electronic component mounting apparatus 1 according to the program stored in the ROM 43.
[0024]
That is, the CPU 40 drives the drive motors 4F, 5F, 6F via the interface 44 and drive circuits 4E, 5E, 6E, and the X-axis motor via the interface 44 and drive circuits 45, 46, 47, 48. 49, the Y axis motor 50, the θ axis motor 51, and the vertical axis motor 52 are controlled to be driven.
[0025]
The RAM 42 stores mounting data relating to component mounting. For each mounting order (step number), the X direction (indicated by X), the Y direction (indicated by Y), and the angle within the printed circuit board. Information (indicated by Z), arrangement number information of each component supply unit 3 indicated by FDR, and the like are stored. The RAM 42 stores component arrangement data, which stores the type (component ID) of each electronic component corresponding to the arrangement number of each component supply unit 3. Further, the RAM 42 stores component library data representing the characteristics of each electronic component.
[0026]
A recognition processing unit 53 is connected to the CPU 40 via the interface 44. The recognition processing unit 53 performs recognition processing of an image captured by the component recognition camera 34 based on the component library data. The processing result is sent to the CPU 40. That is, the CPU 40 outputs an instruction to the recognition processing unit 53 so as to perform recognition processing (calculation of a positional deviation amount) on the image captured by the recognition camera 34 and receives a recognition processing result from the recognition processing unit 53. is there.
[0027]
A touch panel 54 is attached on the screen of the CRT 55 via an attachment (not shown). The touch panel 54 has a transparent conductive film coated on the entire surface of the glass substrate, and electrodes are printed on four sides. Therefore, when a very small current is passed through the surface of the touch panel 54 and the operator touches it, current changes are caused in the electrodes on the four sides, and the coordinate value touched by the circuit board connected to the electrodes is calculated. Therefore, if the coordinate value matches the coordinate value in the coordinate value group stored in advance in the RAM 42 as a switch unit for performing a certain operation, the operation is performed.
In this embodiment, the portion surrounded by the double frame of the screen displayed on the CRT 55 is stored for each screen so as to be the switch portion.
[0028]
FIG. 4 shows the position of the printed circuit board P and the state of the printed circuit board in the electronic component mounting apparatus 1, and each state is displayed in color. Here, each state is displayed in a pattern for convenience. Yes. These pieces of information are stored in the RAM 42.
[0029]
Next, each sensor related to the conveyance of the printed circuit board P shown in FIG. 1 will be described. Reference numeral 60 denotes a sensor for detecting the printed circuit board P at the outlet of the supply conveyor 4. When the CPU 40 receives a substrate discharge signal from an upstream device (not shown), the CPU 40 acquires transport substrate information from the upstream device. The information is stored in the state storage memory 42A of the supply conveyor 4 in the RAM 42, the drive circuit 4E starts driving the drive motor 4F, the drive roller 15 and the plurality of rollers 16 are rotated, and the printed circuit board is printed by the conveyor belt 17. P is transported, but when the sensor 60 detects the substrate P, the drive motor 4F is stopped and waits at the outlet of the supply conveyor 4.
[0030]
Reference numeral 61 denotes a sensor for detecting the printed circuit board P at the standby position. When the CPU 40 receives a board discharge command from the supply conveyor 4, the CPU 40 copies the content of the transport board information in the supply conveyor 4 and positions it in the RAM 42. The state is stored in the state storage memory 42B of the unit 5, the drive circuit 5E starts driving the drive motor 5F, the drive roller 9 and the plurality of rollers 10 are rotated, and the printed circuit board P is transported by the transport belt 11. When the sensor 61 detects P, the drive motor 5F is stopped, and the standby position of the positioning unit 5 is waited.
[0031]
A sensor 62 detects the printed circuit board P at the exit of the discharge conveyor 6. When the CPU 40 receives a substrate discharge command from the positioning unit 5, the CPU 40 copies the contents of the transport board information in the positioning unit 5 and copies the RAM 42. The state is stored in the state storage memory 42 </ b> C of the discharge conveyor 6, the drive circuit 6 </ b> E starts driving the drive motor 6 </ b> F, the drive roller 21 and the plurality of rollers 22 are rotated, and the printed circuit board P is transported by the transport belt 23. When the sensor 62 detects the substrate P, the drive motor 6F is stopped and waits at the exit of the discharge conveyor 6.
[0032]
The operation will be described below with the above configuration. First, taking-in of the printed circuit board P conveyed from an upstream device (not shown) to the supply conveyor 4 will be described with reference to FIGS. 5 and 6.
[0033]
When the CPU 40 receives the substrate discharge signal from the upstream device, the CPU 40 obtains the transport substrate information from the upstream device, and the CPU 40 stores the information in the state storage memory 42A of the supply conveyor 4 in the RAM 42, and the printed circuit board P Display color is determined, and the loading of the printed circuit board P from the upstream device to the supply conveyor 4 is started. That is, the drive circuit 4E starts driving the drive motor 4F, rotates the drive roller 15 and the plurality of rollers 16, and conveys the printed circuit board P by the conveyance belt 17. When the sensor 60 detects the substrate P, The drive motor 4F is stopped, and it is made to wait at the exit of the supply conveyor 4. Then, the CPU 40 refers to the contents (conveyance board information) of the state storage memory 42A and displays the board state in the color A at the position A shown in FIG.
[0034]
Next, the transfer operation of the printed circuit board P from the supply conveyor 4 to the positioning unit 5 will be described with reference to FIGS. That is, when the CPU 40 receives a substrate discharge command from the supply conveyor 4, the CPU 40 copies the content of the transport board information in the supply conveyor 4 and stores it in the state storage memory 42 B of the positioning unit 5 in the RAM 42. The drive of the drive motor 5F is started by 5E, and the drive roller 9 and the plurality of rollers 10 are rotated to convey the printed circuit board P by the conveyance belt 11. However, when the sensor 61 detects the substrate P, the drive motor 5F is stopped. To wait at the standby position of the positioning unit 5. Then, the display at the position A of the supply conveyor 4 is deleted, and the substrate state is color-coded and displayed on the CRT 55 at the position B shown in FIG. 8 according to the contents (conveyance substrate information) stored in the state storage memory 42B.
[0035]
Next, the operation during mounting of the electronic component at the position B, that is, the standby position of the positioning unit 5 will be described with reference to FIGS. At this positioning position, the board positioning unit 5 positions and fixes the printed board P by a positioning mechanism (not shown). After this positioning, according to the mounting data stored in the RAM 42 on the printed circuit board P, the electronic component to be mounted by the suction nozzle 33 corresponding to the component type of the electronic component is sucked out from the predetermined component supply unit 3 and printed. The operation of mounting on the substrate P is started. The content (conveyance board information) stored in the state storage memory 42B at position B is changed during component mounting, and the board state is color-coded at position B shown in FIG.
[0036]
Then, after mounting one after another and when the mounting is completed without causing any abnormality in the mounting device 1, since there is no abnormality occurrence information, the content (conveyance board information) stored in the state storage memory 42B at position B is terminated. The board state indicating that the mounting is normally completed at the position B shown in FIG. 10 is color-coded and displayed on the CRT 55.
[0037]
If an abnormality occurs, the abnormality occurrence information is stored in the RAM 42, the mounting operation is continued, and when the mounting is completed, the abnormality occurrence information is present, so the contents stored in the state storage memory 42B at the position B (conveyance board information) ) Is changed to abnormal end of mounting, and the board state indicating that the abnormal end of mounting is abnormally displayed at the position B shown in FIG.
[0038]
Next, the substrate transfer operation from the position B to the position C, that is, from the standby position of the positioning unit 5 to the standby position of the exit of the discharge conveyor 6 will be described with reference to FIGS. That is, when the CPU 40 receives a substrate discharge command from the positioning unit 5, the CPU 40 copies the content of the transport board information in the positioning unit 5 and stores it in the state storage memory 42 </ b> C of the discharge conveyor 6 in the RAM 42. The drive motor 6F is started by 6E, and the drive roller 21 and the plurality of rollers 22 are rotated to convey the printed board P by the conveyor belt 23. When the sensor 62 detects the board P, the drive motor 6F is stopped. And wait at the exit of the discharge conveyor 6. Then, the display at the position B of the supply conveyor 4 is erased, and the substrate state is color-coded and displayed on the CRT 55 at the position C shown in FIG. 12 according to the contents (conveyance substrate information) stored in the state storage memory 42C.
[0039]
Next, the substrate discharging operation to the downstream apparatus will be described with reference to FIGS. That is, when the CPU 40 receives a substrate acceptance signal from the downstream device, the drive circuit 6E notifies the downstream device of the contents of the state storage memory 42C at the position C, and the drive circuit 6E drives the drive motor to discharge the substrate P to the downstream device. 6F is started, the driving roller 21 and the plurality of rollers 22 are rotated and the printed circuit board P is conveyed by the conveying belt 23. When the sensor 62 detects the absence of the substrate, the driving motor 6F is stopped. The display of the CRT 55 shown in FIG. 14 at the position C of the discharge conveyor 6 is erased, and the contents stored in the state storage memory 42C are also erased and initialized.
[0040]
Although this embodiment is applied to a component mounting device, it can also be applied to a component assembly device such as an adhesive application device and a screen printing machine.
[0041]
Although the embodiments of the present invention have been described above, various alternatives, modifications, and variations can be made by those skilled in the art based on the above description, and the present invention is not limited to the various alternatives described above without departing from the spirit of the present invention. It includes modifications or variations.
[0042]
【The invention's effect】
As described above, according to the present invention, the printed circuit board on which a predetermined operation is performed in the assembling apparatus is positioned before the assembly operation, the assembly operation is completed, and the assembly operation is not performed at each position such as the positioning unit, the supply conveyor, and the discharge conveyor. It is possible to provide a component assembling apparatus capable of easily confirming what state is completed or the like.
[Brief description of the drawings]
FIG. 1 is a plan view of an electronic component mounting apparatus.
FIG. 2 is a cross-sectional view taken along the line BB of FIG.
FIG. 3 is a control block diagram.
FIG. 4 is a diagram illustrating a screen of a position of a printed board and a state of the board in the electronic component mounting apparatus.
FIG. 5 is a diagram illustrating a flowchart for taking a printed circuit board conveyed from an upstream device into a supply conveyor;
FIG. 6 is a diagram illustrating a screen of a position of a printed board on a supply conveyor and a state of the board.
FIG. 7 is a diagram illustrating a flowchart of a printed board transfer operation from a supply conveyor to a positioning unit.
FIG. 8 is a diagram illustrating a screen of the position of the printed circuit board on the supply conveyor and the positioning unit and the state of the circuit board.
FIG. 9 is a flowchart illustrating an operation during mounting of an electronic component at position B.
FIG. 10 is a diagram illustrating a screen of a position of a printed board on a positioning unit and a state of the board.
FIG. 11 is a flowchart illustrating a substrate transfer operation from position B to position C.
FIG. 12 is a diagram illustrating a screen of the position of the printed circuit board on the positioning unit and the discharge conveyor and the state of the circuit board.
FIG. 13 is a view showing a flowchart of the substrate discharging operation to the downstream apparatus.
FIG. 14 is a diagram illustrating a screen of a position of a printed board on a discharge conveyor and a state of the board.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Electronic component mounting apparatus 4 Supply conveyor 5 Positioning part 6 Discharge conveyor 40 CPU
54 Touch Panel 55 CRT

Claims (1)

The printed board inherited from the upstream apparatus in the component assembly apparatus that transports the printed circuit board inherited from the upstream apparatus to the positioning unit, performs a predetermined operation and assembles, and then delivers the printed circuit board to the downstream apparatus. A supply conveyor that conveys the substrate to the positioning unit, a discharge conveyor that conveys the printed circuit board that has been assembled by performing a predetermined operation and delivers it to the downstream device, and the assembly operation is completed before the assembly operation is completed. A component assembling apparatus provided with a display device that changes and displays the display of each printed circuit board at each position of the positioning unit, the supply conveyor, the discharge conveyor, and the like for each state of the printed circuit board such as completion .

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