JP7470186B2 - Component Mounting Machine - Google Patents

Description

This disclosure relates to a component mounter that stores data logs related to a peripheral unit that handles electronic components or circuit boards.

Various technologies have been proposed in the past for the component mounting machine. For example, the technology described in the following Patent Document 1 is a carrier tape package for mounting electronic components, which is used to supply electronic components in an electronic component mounting device that takes electronic components from a tape feeder and mounts them on a substrate, and is configured by storing a carrier tape holding the electronic components in a wound state on a tape reel, and the carrier tape package is provided with a data storage unit that is held in a holder that can be slidably attached to the carrier tape and that is freely writable and readable, and on which carrier tape information including identification information of the electronic components held on the carrier tape is written in advance, and the data storage unit is attached to the leading end of the carrier tape at least at the time when the carrier tape is attached to the tape feeder.

According to the description in the following Patent Document 1, the above-mentioned carrier tape package is a carrier tape package in which the carrier tape is stored wound on a tape reel, and is provided with a data storage unit that is freely writable and readable and holds a storage medium on which carrier tape information has been written in advance. By reading the carrier tape information at the time the carrier tape is loaded into the tape feeder, it is possible to automatically read the identification information contained in the carrier tape information without reading errors. Furthermore, by providing a writing means for writing data to the storage medium, information relating to the usage history can be written to the storage medium at any time, and part information relating to the identification and usage history of the carrier tape can be managed efficiently and easily.

Patent Application No. 2006-327591

However, while information regarding usage history is being written to the storage medium, it is difficult for the electronic component mounting device to access the tape feeder. Therefore, writing information regarding usage history to the storage medium can cause a decrease in throughput if the amount of information written to the storage medium is relatively large.

Therefore, the timing at which information regarding usage history is written to the storage medium is actually limited to specific times when the tape feeder is not in use, such as when the device is stopped operating or when a model change operation is performed.

The present disclosure has been made in consideration of the above-mentioned points, and aims to provide a component mounter that can maintain throughput even when a data log related to a peripheral unit in use is stored in the memory unit of the peripheral unit.

This specification discloses a component mounter that mounts electronic components on a board, the component mounter comprising: a peripheral unit having a memory unit and handling electronic components or boards; and a command control unit that issues a command to the peripheral unit to perform a storage operation to store a data log related to the peripheral unit in the memory unit while the peripheral unit is in use, the command control unit issuing a command at the start of a non-driving time of the peripheral unit during the period from when the mounting process is started to when it is ended , the non-driving time being equal to or longer than the storage time required for the storage operation.

According to the present disclosure, a component mounter can maintain throughput even when storing data logs related to a peripheral unit in the memory unit of the peripheral unit in use.

FIG. FIG. FIG. 2 is a block diagram of a component mounter. FIG. 2 is a block diagram of a control device and a transport device. FIG. 2 is a block diagram of a control device and a mounting head. FIG. 2 is a block diagram of a control device and a supply device. 13 is a table showing data logs relating to the mounting head. 1 is a table of data logs for a dispensing device. 13 is a list of data logs relating to a transport device. 13 is a flow chart for implementing data log storage.

An embodiment of the present disclosure will be described below with reference to the drawings. FIG. 1 shows two component mounters 16 arranged side by side on a system base 14. In the following description, the direction in which the component mounters 16 are lined up will be referred to as the X-axis direction, the horizontal direction perpendicular to that direction will be referred to as the Y-axis direction, and the direction perpendicular to both the X-axis direction and the Y-axis direction will be referred to as the Z-axis direction.

The component mounter 16 mainly comprises a mounting machine main body 20, a transport device 22, a moving device 24, a mounting head 26, and a supply device 28. The mounting machine main body 20 is composed of a frame section 32 and a beam section 34 suspended on the frame section 32.

The transport device 22 is equipped with two conveyor devices (conveyor device 40, conveyor device 42). The conveyor devices 40 and 42 are arranged on the frame portion 32 so as to be parallel to each other and extend in the X-axis direction. The conveyor devices 40 and 42 transport the circuit boards 17 (see FIG. 2) supported by each of them in the X-axis direction by a transport motor 46 (see FIG. 4). The circuit boards 17 are fixedly held at a predetermined work position by a board holding device (not shown) having a clamp motor 48 (see FIG. 4).

The moving device 24 is an XY robot type moving device, and is equipped with an X-axis servo motor 52 (see FIG. 3) that slides the slider 50 in the X-axis direction, and a Y-axis servo motor 54 (see FIG. 3) that slides the slider 50 in the Y-axis direction. A mounting head 26 is attached to the slider 50, and the mounting head 26 moves to any position on the frame section 32 by the operation of the X-axis servo motor 52 and the Y-axis servo motor 54. In addition, a unit holder 68 is provided below the mounting head 26.

As shown in FIG. 2, the mounting head 26 mounts the electronic component 18 on the circuit board 17. The mounting head 26 is replaceably mounted on the slider 50 and has a plurality of rod-shaped mounting units 60, each of which has a suction nozzle 62 attached to its tip. The suction nozzle 62 is connected to a positive/negative pressure supply device 66 (see FIG. 5) through a negative pressure air passage and a positive pressure air passage. The negative pressure air passage and the positive pressure air passage are connected or blocked by a plurality of valves (not shown) of the positive/negative pressure supply device 66. The suction nozzle 62 suctions and holds the electronic component 18 by negative pressure, and releases the held electronic component 18 by positive pressure. The rod-shaped mounting units 60 are arranged at equal angular pitches on the outer periphery of the unit holder 68, and are held in a state where the axial direction is vertical. The suction nozzle 62 extends downward from the lower surface of the unit holder 68. The attachment and replacement of the suction nozzles 62 to each mounting unit 60 is done automatically with a single touch, but as this is a well-known technique, a detailed description of this will be omitted.

In addition, in the mounting head 26, the unit holder 68 is rotated intermittently for each installation angle of the mounting unit 60 by the R-axis servo motor 72 (see FIG. 5) of the holder rotation device 70. As a result, the mounting units 60 are sequentially stopped at the lifting station, which is one of the stopping positions of the multiple mounting units 60. Then, the mounting unit 60 located at the lifting station is lifted and lowered by the Z-axis servo motor 76 (see FIG. 5) of the unit lifting device 74. As a result, the vertical position of the electronic component 18 sucked and held by the suction nozzle 62 is changed. In addition, in the mounting head 26, a stop position other than the lifting station is set as a rotation station, and the mounting unit 60 located at the rotation station is rotated by the Q-axis servo motor 80 (see FIG. 5) of the rotation device 78. As a result, the holding posture of the electronic component 18 sucked and held by the suction nozzle 62 is changed.

The supply device 28 is a feeder type supply device and is disposed at one end of the frame portion 32 in the Y-axis direction. The supply device 28 has a plurality of tape feeders 81 and a device pallet 82. The device pallet 82 has a number of slots (not shown) on the upper surface, into which the tape feeders 81 are inserted. Each tape feeder 81 contains a wound state of taped components formed by taping electronic components 18. The tape feeder 81 feeds the taped components by a front motor 84 (see FIG. 6) and a rear motor 86 (see FIG. 6). As a result, the feeder type supply device 28 supplies electronic components 18 at the supply position by feeding the taped components. Each tape feeder 81 can be attached and detached to and from the device pallet 82 to accommodate replacement of electronic components 18, etc.

As shown in FIG. 3, the component mounter 16 includes a control device 100. The control device 100 includes a controller 102 and a servo amplifier 104. The controller 102 includes a CPU 106, a ROM 108, a RAM 110, and an EEPROM 112, and is mainly a computer. The controller 102 is connected to the servo amplifier 104, the conveying device 22, the moving device 24, the mounting head 26, and the supplying device 28. The servo amplifier 104 is connected to the X-axis servo motor 52 and the Y-axis servo motor 54 of the moving device 24. As a result, the operation of each servo motor 52, 54 of the moving device 24 is controlled by the CPU 106 of the controller 102 via the servo amplifier 104. The servo amplifier 104 is also connected to the mounting head 26. Below, diagrams of the conveying device 22, the mounting head 26, and the supplying device 28 will be described with reference to FIG. 4 to FIG. 6.

As shown in FIG. 4, the conveying device 22 includes a controller 120. The controller 120 includes a CPU 122, a ROM 124, a RAM 126, and an EEPROM 128, and is mainly a computer. The controller 120 is connected to the controller 102 of the control device 100, and to the conveyor device 40 and the conveyor device 42.

In addition to the above-mentioned conveying motor 46 and clamp motor 48, the conveyor device 40 is equipped with a plurality of drive circuits 130, a reference width changing motor 132, a dependent width changing motor 134, an L-side passing sensor 136, and an R-side passing sensor 138. The reference width changing motor 132 and the dependent width changing motor 134 are used to change the Y-axis direction interval of the conveyor device 40. Each motor 46, 48, 132, 134 of the conveyor device 40 is connected to the controller 120 via each drive circuit 130. The L-side passing sensor 136 and the R-side passing sensor 138 are disposed at both ends of the conveyor device 40 in the X-axis direction (conveying direction) and are used to detect the introduction or removal of the circuit board 17. The L-side passing sensor 136 and the R-side passing sensor 138 are connected to the controller 120. As a result, the operation of each motor 46, 48, 132, 134 of the conveyor device 40 is controlled by the CPU 106 of the controller 120.

This also applies to the conveyor device 42, which is separate from the conveyor device 40. However, the reference width changing motor 132 and the drive circuit 130 connected to the reference width changing motor 132 are not provided in the conveyor device 42.

As shown in FIG. 5, the mounting head 26 is equipped with the R-axis servo motor 72, Z-axis servo motor 76, and Q-axis servo motor 80 described above. Each servo motor 72, 76, and 80 of the mounting head 26 is connected to a servo amplifier 104 of the control device 100. As a result, the operation of each servo motor 72, 76, and 80 of the mounting head 26 is controlled by the CPU 106 of the controller 102 of the control device 100 via the servo amplifier 104. Furthermore, in addition to the positive and negative pressure supply device 66 described above, the mounting head 26 is equipped with a controller 140, a photocurrent monitor 150, multiple drive circuits 152, and an LED 154.

The controller 140 includes a CPU 142, a ROM 144, a RAM 146, and an EEPROM 148, and is mainly a computer. The controller 140 is connected to the controller 102 of the control device 100. The photocurrent monitor 150 detects the amount of light in the optical fiber connecting the controller 140 and the controller 102 of the control device 100, and outputs the detected value to the controller 140. The LED 154 is turned on when the mounting head 26 is in a predetermined operation. The LED 154 and the positive and negative pressure supply device 66 are connected to the controller 140 via the respective drive circuits 152. As a result, the operation of the LED 154 and the positive and negative pressure supply device 66 is controlled by the CPU 142 of the controller 140.

As shown in FIG. 6, the supply device 28 includes a plurality of tape feeders 81 as described above. In addition to the front motor 84 and rear motor 86 as described above, each tape feeder 81 includes a controller 160 and a plurality of drive circuits 170. The controller 160 includes a CPU 162, a ROM 164, a RAM 166, and an EEPROM 168, and is mainly a computer. The controller 160 is connected to the controller 102 of the control device 100. The front motor 84 and rear motor 86 are connected to the controller 160 via the respective drive circuits 170. As a result, the operation of the front motor 84 and rear motor 86 is controlled by the CPU 162 of the controller 160.

In the component mounter 16, the operations of the transport device 22, the moving device 24, the mounting head 26, and the supply device 28 are controlled by the CPU 106 of the controller 102 of the control device 100. As a result, the mounting head 26 mounts the electronic components 18 on the circuit board 17 held by the transport device 22. Specifically, the circuit board 17 is transported to the work position by the transport device 22 and then held there by command of the controller 102. Also, the supply device 28, by command of the controller 102, feeds out the taped components of each tape feeder 81 and supplies the electronic components 18 at the supply position. Then, by command of the controller 102, the mounting head 26 is moved by the moving device 24 to above the supply position of the electronic components 18, and the suction nozzle 62 suctions and holds the electronic components 18. Next, the mounting head 26 moves above the circuit board 17 and mounts the held electronic components 18 on the circuit board 17.

At that time, the data logs are stored in the EEPROMs 128, 148, and 168 of the tape feeders 81 of the transport device 22, mounting head 26, and supply device 28. In the following description, when the tape feeders 81 of the transport device 22, mounting head 26, and supply device 28 are collectively referred to without distinction, they are referred to as peripheral units 22, 26, and 81.

In the mounting head 26, data logs related to the mounting head 26 are stored in the EEPROM 148 at appropriate times. As shown in the table 180 in FIG. 7, the data logs related to the mounting head 26 are divided into 11 types and numbered from 1 to 23.

Type A is a data log related to the power supply, and includes data number 1. Data number 1 is called the power ON time, and indicates the accumulated time that the power supply of the mounting head 26 is ON. Type B is a data log related to the control output, and includes data number 2. Data number 2 is called the total number of Do signals, and indicates the accumulated number of times that all mounting units 60 have moved up and down.

Type C is a data log related to valves, and includes data number 3. Data number 3 is called the number of times the valve is turned on, and indicates the cumulative number of times each valve of the positive and negative pressure supply device 66 has been turned on. The cumulative number is stored for each valve of the positive and negative pressure supply device 66. Type D is a data log related to data storage, and includes data number 4. Data number 4 is called the number of times the EEPROM has been written, and indicates the cumulative number of times data has been written to the EEPROM 148 of the mounting head 26.

Type E is a data log related to the LED and includes data number 5. Data number 5 is called the LED illumination time and indicates the accumulated time that the LED 154 is illuminated. Type F is a data log related to the optical fiber and includes data number 6. Data number 6 is called the photocurrent monitor value and indicates the detection value of the photocurrent monitor 150. Type G is a data log related to the mounting unit and includes data number 7. Data number 7 is called the number of shots and indicates the accumulated number of times each mounting unit 60 has moved up and down. The accumulated number is stored for each mounting unit 60.

Type H is a data log related to the servo motor, and includes data numbers 8 to 10. Data number 8 is called the total travel distance of the Z-axis servo motor, and indicates the total number of pulse signals sent from the servo amplifier 104 to the Z-axis servo motor 76. Data number 9 is called the total travel distance of the R-axis servo motor, and indicates the total number of pulse signals sent from the servo amplifier 104 to the R-axis servo motor 72. Data number 10 is called the total travel distance of the Q-axis servo motor, and indicates the total number of pulse signals sent from the servo amplifier 104 to the Q-axis servo motor 80.

Type I is a data log related to the torque of the Z-axis, and includes data number 11. Data number 11 is called the operating torque of the Z-axis, and indicates the torque value of the Z-axis servo motor 76 acquired by the servo amplifier 104.

Type J is a data log related to the torque of the R-axis, and includes data numbers 12 to 17. Data number 12 is called the operating torque of the R-axis (pattern 1), and indicates the torque value of the R-axis servo motor 72 acquired by the servo amplifier 104 when the operation of the R-axis servo motor 72 is pattern 1. This is also true for data numbers 13 to 17.

Type K is a data log related to the torque of the Q-axis, and includes data numbers 18 to 23. Data number 18 is called the Q-axis operating torque (pattern 1), and indicates the torque value of the Q-axis servo motor 80 acquired by the servo amplifier 104 when the operation of the Q-axis servo motor 80 is pattern 1. This is also true for data numbers 19 to 23.

The data logs of types A through F are acquired by the mounting head 26. In contrast, the data logs of types G through K are acquired by the control device 100.

In the supply device 28, for each tape feeder 81 on the device pallet 82, data logs relating to the tape feeder 81 are stored in the EEPROM 168 at the appropriate time. As shown in the table 182 in FIG. 8, the data logs relating to the tape feeders 81 are divided into four types and numbered 1 to 6. Note that the alphabetical letters of the types and the numbers are unrelated to the alphabetical letters and numbers in the table 180 in FIG. 7 described above.

Type A is a data log related to power supply and contains data number 1. Data number 1 is called the number of times the power has been turned on, and indicates the cumulative number of times the tape feeder 81 has been turned on.

Type B is a data log related to the front motor 84, and includes data No. 2 and No. 3. Data No. 2 is called the total number of feeds of the front motor, and indicates the cumulative number of times the front motor 84 has operated since the tape feeder 81 was manufactured (i.e., the cumulative number of times the tape feeder 81 has fed taped components (electronic components 18)). Data No. 3 is called the total feed distance of the front motor, and indicates the total distance traveled by the front motor 84 since the tape feeder 81 was manufactured. The total distance traveled is calculated based on the total number of pulse signals sent from the drive circuit 170.

Type C is a data log related to the rear motor 86, and includes data number 4. Data number 4 is called the total feed distance of the rear motor, and indicates the total travel distance of the rear motor 86 from the time the tape feeder 81 was manufactured until now. The total travel distance is calculated based on the total number of pulse signals sent from the drive circuit 170.

Type D is a data log related to the front motor 84, and includes data No. 5 and No. 6. Data No. 5 is called the number of feeds of the front motor, and indicates the cumulative number of times the front motor 84 has operated since the tape feeder 81 was maintained (i.e., the cumulative number of times the tape feeder 81 has fed taped components (electronic components 18)). Data No. 6 is called the number of feed abnormalities of the front motor, and indicates the cumulative number of times an error has occurred in the front motor 84 since the tape feeder 81 was maintained (i.e., the cumulative number of times the tape feeder 81 has failed to feed taped components (electronic components 18)).

In the conveying device 22, data logs related to the conveying device 22 are stored in the EEPROM 128 at appropriate times. As shown in the list 184 in FIG. 9, the data logs related to the conveying device 22 are divided into eight types and numbered 1 to 16. However, of the eight types, data logs of types B to H, which will be described later, are stored for each conveyor device 40, 42. The alphabetical letters of the types and the numbers of the numbers are unrelated to the alphabetical letters and numbers in the list 180 in FIG. 7 and the alphabetical letters and numbers in the list 182 in FIG. 8.

Type A is a data log related to the power supply, and includes data numbered 1 and 2. Data numbered 1 is called the total power-on time, and indicates the accumulated time that the conveying device 22 has been powered on. Data numbered 2 is called the number of times the power has been turned on, and indicates the accumulated number of times the conveying device 22 has been powered on.

Type B is a data log related to the electromagnetic motor, and includes data numbers 3 to 5. Data number 3 is called the operating distance of the conveying motor, and indicates the total travel distance of the conveying motor 46 calculated based on the total number of pulse signals sent from the drive circuit 130. Data number 4 is called the operating distance of the reference width changing motor, and indicates the total travel distance of the reference width changing motor 132 calculated based on the total number of pulse signals sent from the drive circuit 130. However, data number 4 is not provided in the data log of the conveyor device 42. Data number 5 is called the operating distance of the dependent width changing motor, and indicates the total travel distance of the dependent width changing motor 134 calculated based on the total number of pulse signals sent from the drive circuit 130.

Type C is a data log related to board transport and includes data number 6. Data number 6 is called the number of board removals and indicates the cumulative number of times the transport device 22 has removed the circuit board 17. The cumulative number is calculated based on the detection signal of the L-side passage sensor 136 or the R-side passage sensor 138. Type D is a data log related to board holding and includes data number 7. Data number 7 is called the total number of clamps and indicates the cumulative number of times the clamp motor 48 has operated (i.e., the cumulative number of times the transport device 22 has held the circuit board 17). The cumulative number is calculated based on the total number of pulse signals sent from the drive circuit 130.

Type E is a data log related to sensitivity adjustment, and includes data numbers 8 and 9. Data number 8 is called the number of L-side sensitivity adjustments, and indicates the cumulative number of times the sensitivity of the L-side passing sensor 136 has been adjusted. Data number 9 is called the number of R-side sensitivity adjustments, and indicates the cumulative number of times the sensitivity of the R-side passing sensor 138 has been adjusted. Type F is a data log related to chattering, and includes data numbers 10 and 11. Data number 10 is called the number of L-side chatterings, and indicates the cumulative number of times the L-side passing sensor 136 has chattered. Data number 11 is called the number of R-side chatterings, and indicates the cumulative number of times the R-side passing sensor 138 has chattered.

Type G is a data log related to motor errors, and includes data numbers 12 to 15. Data number 12 is called the number of errors of the conveying motor, and indicates the cumulative number of times that the conveying motor 46 has caused an error. Data number 13 is called the number of errors of the reference width changing motor, and indicates the cumulative number of times that the reference width changing motor 132 has caused an error. However, data number 13 is not provided in the data log of the conveyor device 42. Data number 14 is called the number of errors of the dependent width changing motor, and indicates the cumulative number of times that the dependent width changing motor 134 has caused an error.

Type H is a data log related to clamp errors and includes data number 16. Data number 16 is called the number of clamp height abnormalities, and indicates the cumulative number of times that the conveying device 22 failed to hold the circuit board 17 out of the cumulative number of times that the clamp motor 48 operated.

In addition, each data log of types B to D and types F to H is stored separately for the period from when the conveying device 22 was manufactured to the present and the period from when the conveying device 22 was maintained to the present.

When the data log is stored in the EEPROM 128, 148, 168 of each of the peripheral units 22, 26, 81, a processing program for implementing the flowchart in FIG. 10 is executed by the CPU 106 of the control device 100 and the CPUs 122, 142, 162 of each of the peripheral units 22, 26, 81. The above processing program will be described in detail below with reference to FIG. 10. When the above processing program is executed, as shown in FIG. 10, first, in step (hereinafter simply referred to as "S") 10, the CPUs 122, 142, 162 of the peripheral units 22, 26, 81 transmit the stored time.

In this process, the storage time of the mounting head 26 is transmitted from the mounting head 26 to the control device 100. The storage time of the mounting head 26 refers to the time required for all data logs related to the mounting head 26 (see table 180 in FIG. 7) to be stored in the EEPROM 148, and is prestored in the ROM 144.

The storage time of each tape feeder 81 is also transmitted from each tape feeder 81 to the control device 100. The storage time of a tape feeder 81 refers to the time required for all data logs related to the tape feeder 81 (see table 182 in FIG. 8) to be stored in the EEPROM 168, and is prestored in the ROM 164.

Furthermore, the storage time of the transport device 22 is transmitted from the transport device 22 to the control device 100. The storage time of the transport device 22 refers to the time required for all data logs related to the transport device 22 (see table 184 in FIG. 9) to be stored in the EEPROM 128, and is prestored in the ROM 124.

The memory time of the peripheral units 22, 26, and 81 may be automatically transmitted from the peripheral units 22, 26, and 81 to the control device 100 when the peripheral units 22, 26, and 81 are powered on, etc.

In response to this, the CPU 106 of the control device 100 performs a process of receiving the stored times (S100). In this process, the control device 100 receives the stored times of the peripheral units 22, 26, and 81, and stores them in the RAM 110. As a result, the control device 100 identifies the stored times of the peripheral units 22, 26, and 81.

The storage times of the peripheral units 22, 26, and 81 may be stored in advance in the ROM 108 of the control device 100 in association with the model numbers of the peripheral units 22, 26, and 81. In such a case, the storage times of the peripheral units 22, 26, and 81 are identified based on the model numbers notified to the control device 100 by the peripheral units 22, 26, and 81 in response to an inquiry from the control device 100 made when the peripheral units 22, 26, and 81 are replaced, for example. Examples of when the peripheral units 22, 26, and 81 are replaced include when the mounting head 26 is replaced and when the tape feeder 81 is set on the device pallet 82.

Then, the CPU 106 of the control device 100 performs mounting start processing (S102). In this processing, in order to mount the electronic component 18 on the circuit board 17 using the peripheral units 22, 26, 81, etc., the control device 100 starts control of the servo amplifier 104, and sends a control signal from the control device 100 to the peripheral units 22, 26, 81. The control signal is also sent to the movement device 24.

In response to this, the CPUs 122, 142, 162 of the peripheral units 22, 26, 81 each perform mounting start processing (S12). In this processing, operation control of the peripheral units 22, 26, 81 is started based on a control signal from the control device 100. Operation control of the moving device 24 is also started. As a result, in the component mounter 16, electronic components 18 are repeatedly mounted on the circuit boards 17 that are transported in sequence.

Meanwhile, the CPU 106 of the control device 100 determines whether the current time is a timing at which all data logs related to the peripheral units 22, 26, and 81 can be stored in the EEPROMs 128, 148, and 168 of the peripheral units 22, 26, and 81 (hereinafter, sometimes referred to as storage timing) (S104). This determination is performed for each of the peripheral units 22, 26, and 81.

Specifically, for the mounting head 26, it is determined whether the current time is a time when the Z-axis servo motor 76, the R-axis servo motor 72, the Q-axis servo motor 80, and the positive/negative pressure supply device 66 are not operating, and is the timing at which a time equal to or greater than the stored time of the mounting head 26 begins. An example of such a timing is the time when the transport device 22 starts to load or unload the circuit board 17.

For the tape feeder 81, it is determined whether the current time is a time when the front motor 84 and rear motor 86 are not operating and is the timing when a time equal to or greater than the stored time of the tape feeder 81 begins. Such a timing is, for example, the time when the conveying device 22 starts to carry in or carry out the circuit board 17.

For the conveying device 22, it is determined whether the current time is a time when the conveying motor 46, the reference width changing motor 132, the dependent width changing motor 134, and the clamp motor 48 are not operating and is the timing when a time equal to or greater than the stored time of the conveying device 22 begins. Such a timing is, for example, the time when the conveying device 22 begins to hold the circuit board 17.

If the current time is the storage timing for any of the peripheral units 22, 26, and 81 (S104: YES), the CPU 106 of the control device 100 performs command processing (S106). In this processing, a command signal is sent from the control device 100 to the peripheral unit 22, 26, or 81 for which it has been determined that the current time is the storage timing, to cause the peripheral unit to store a data log.

In response to this, the CPUs 122, 142, and 162 of the peripheral units 22, 26, and 81 perform a storage process (S14). In this process, all data logs related to the peripheral units 22, 26, and 81 are stored in the EEPROMs 128, 148, and 168 of the peripheral units 22, 26, and 81.

Specifically, when the mounting head 26 receives a command signal from the control device 100, all data logs related to the mounting head 26 (see list 180 in FIG. 7) are stored in the EEPROM 148. Of the data logs related to the mounting head 26 (see list 180 in FIG. 7), each data log of types G to K acquired by the control device 100 is sent from the control device 100 to the mounting head 26 together with the command signal from the control device 100, and is stored in the EEPROM 148.

When the tape feeder 81 receives a command signal from the control device 100, all data logs related to the tape feeder 81 (see table 182 in Figure 8) are stored in the EEPROM 168.

When the conveying device 22 receives a command signal from the control device 100, all data logs related to the conveying device 22 (see table 184 in Figure 9) are stored in the EEPROM 128.

Then, the CPUs 122, 142, 162 of the peripheral units 22, 26, 81 each determine whether to finish mounting the electronic components 18 on the circuit board 17 (S16). This determination is made based on a control signal sent from the control device 100 to each peripheral unit 22, 26, 81 in S110, which will be described later. If mounting of the electronic components 18 on the circuit board 17 is to continue (S16: NO), the above-mentioned storage process is repeated (S14).

On the other hand, if the current time is not the storage timing for all of the peripheral units 22, 26, and 81 (S104: NO), the CPU 106 of the control device 100 determines whether to end the mounting of the electronic components 18 on the circuit board 17 (S108). If the mounting of the electronic components 18 on the circuit board 17 is to continue (S108: NO), the above-mentioned determination process regarding the storage timing is repeated (S104).

In contrast, when mounting of the electronic components 18 on the circuit board 17 is to be completed (S108: YES), the CPU 106 of the control device 100 performs a mounting completion process (S110). In this process, a control signal is sent from the control device 100 to the peripheral units 22, 26, 81, etc. The control signal is also sent to the movement device 24.

As a result, the state of the peripheral units 22, 26, and 81 transitions to a state where mounting of the electronic components 18 on the circuit board 17 is completed (S16: YES). Therefore, the CPUs 122, 142, and 162 of the peripheral units 22, 26, and 81 each perform mounting completion processing (S18).

This process ends the operation control of the peripheral units 22, 26, and 81. The operation control of the mobile device 24 also ends. After that, the power is turned off for the peripheral units 22, 26, and 81 and the mobile device 24. At that time, data logs related to the peripheral units 22, 26, and 81 are stored in the EEPROMs 128, 148, and 168 of the peripheral units 22, 26, and 81 in order of priority. The priorities are stored in advance in the ROMs 124, 144, and 164 of the peripheral units 22, 26, and 81.

As explained in detail above, the component mounter 16 of this embodiment stores all of the data logs (see table 180 in FIG. 7) related to the mounting head 26 in use in the EEPROM 148 of the mounting head 26 at the appropriate time (S104: YES, S106) (S14), making it possible to maintain throughput without being affected by the amount of storage. The same is true for each tape feeder 81 and transport device 22.

In this embodiment, the circuit board 17 is an example of a board. The mounting head 26 is an example of a peripheral unit and a head. The tape feeder 81 is an example of a peripheral unit and a feeder. The CPU 106 of the control device 100 is an example of a command control unit and an acquisition control unit. Each of the EEPROMs 148, 168 is an example of a storage unit. The data logs shown in each of the lists 180, 182 are an example of data logs related to the peripheral units. Of the data logs shown in the list 180, each of the data logs of types G to K is an example of a data log acquired by a unit other than the peripheral unit. The storage timing of the determination process (S104) is an example of a timing. The command signal of the command process (S106) is an example of a command to perform a storage operation.

Note that this disclosure is not limited to the above-described embodiment, and various modifications are possible without departing from the spirit of the disclosure.

For example, the determination of the storage timing in the determination process (S104) may take into account the lifespan of each EEPROM 128, 148, 168. In such a case, in the determination process (S104) for the mounting head 26, even if the current time is storage timing, if the elapsed time from the most recent positive determination of storage timing (S104: YES) to the current time is shorter than the time interval calculated by dividing the expected usage time of the EEPROM 148 by the limit number of writes, it is determined that the current time is not storage timing (S104: NO). This ensures that the lifespan of the EEPROM 148 of the mounting head 26 is longer than the expected usage time. The same applies to the EEPROM 168 of each tape feeder 81 and the EEPROM 128 of the transport device 22.

In addition, in the process of determining the storage timing for each tape feeder 81 (S104), the CPU 106 of the control device 100 may determine whether the current time is a time when the front motor 84 and rear motor 86 are not operating for at least two or more tape feeders 81, and is a timing when a time equal to or longer than the storage time of the tape feeders 81 starts simultaneously. In such a case, in the command process (S106), a command signal to store data logs is sent in parallel from the control device 100 to at least two or more tape feeders 81 for which it has been determined that the current time is the storage timing.

16: component mounter, 17: circuit board, 18: electronic component, 26: mounting head, 81: tape feeder, 106: CPU, 148: EEPROM, 168: EEPROM, 180: data log list, 182: data log list, S14: storage process, S100: storage time reception process, S104: judgment process, S106: command process

Claims (7)

A component mounter that mounts electronic components on a substrate,
A peripheral unit having a memory unit and handling the electronic component or the board;
a command control unit that issues a command to the peripheral unit to cause the peripheral unit to perform a storage operation for storing a data log relating to the peripheral unit in the storage unit while the peripheral unit is in use;
The command control unit of this component mounter issues the command at the timing when a non-driving time of the peripheral unit begins during a period between the start and end of the mounting process , the non-driving time being equal to or longer than the storage time required for the storage operation. The component mounter according to claim 1, wherein the peripheral unit includes a head that holds and releases the electronic component and mounts it on the board. The component mounter according to claim 1, wherein the peripheral unit includes a feeder that supplies the electronic components. the peripheral unit includes a plurality of the feeders, each of the feeders having the storage unit;
The component mounter according to claim 3 , wherein the command control unit issues the command for each of the plurality of feeders. the peripheral unit includes a plurality of the feeders, each of the feeders having the storage unit;
4. The component mounter according to claim 3, wherein the command control unit issues the command in parallel to the two or more feeders when it determines that the non-driving time occurring simultaneously in two or more of the plurality of feeders is equal to or longer than the stored time. The component mounter according to any one of claims 1 to 5, further comprising an acquisition control unit that acquires the storage time from the peripheral unit when the peripheral unit is started. 7. A component mounter as described in any one of claims 1 to 6, wherein the command control unit transmits a data log related to the peripheral unit, the data log being part of the data log obtained by a unit other than the peripheral unit, to the peripheral unit when issuing the command.

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