JP2932670B2 - Component mounting method and device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component mounting method and an apparatus for mounting various components such as electronic components on a circuit board or the like.

2. Description of the Related Art Conventionally, for example, in an electronic component mounting machine that mounts electronic components on a substrate, a tape-shaped electronic component assembly formed by winding a tape-shaped holding member that houses and holds a large number of electronic components on a reel is used as a component supply device. And the parts cassette is mounted in a predetermined order set in advance in a parts supply unit of an electronic parts mounting machine. At the time of component mounting, the component supply unit operates to sequentially position the part cassettes holding predetermined types of electronic components at the component removal position, and each part cassette is a tape-shaped electronic component assembly according to the mounting operation of the electronic components. Are sequentially fed out, and the electronic components are sequentially sent out to the component extracting position. In this way, predetermined electronic components are sequentially supplied to the component take-out positions in accordance with the mounting order.

By the way, in order to avoid erroneous mounting of electronic components, when checking whether or not the component cassettes are set in a predetermined order in the component supply unit of the electronic component mounting machine before component mounting, as shown in FIG. As described above, the parts cassette 51 set in the parts supply unit is sequentially removed, and the bar code 53 provided on the reel 52 of the tape-shaped electronic component assembly mounted on the parts cassette 51 is transferred to the bar code reader 54. The type of the read component is automatically collated with the component and type registered in advance in the control unit of the electronic component mounter.

In addition, there is known an electronic component mounting machine that measures characteristic values such as a resistance value and a capacitance during a component mounting operation so that a defective electronic component is not mounted. , The characteristic value of each electronic component is manually input in advance to the control unit of the electronic component mounter.

Problems to be Solved by the Invention However, as described above, when checking the mounting state of the parts cassette, manual work is interposed, so it takes a long time for the checking work and completely eliminates erroneous mounting due to omission of checking. There was a problem that can not be.

Further, when inspecting the characteristics of the mounted component, it is necessary to manually input the characteristic data, and there is a problem that much labor and time are required.

In view of the above-mentioned conventional problems, the present invention can automate the inspection of the mounting position of the component supply device with respect to the component supply unit and the input of component characteristics, thereby reducing the time required for inspection and input and completely preventing erroneous mounting. It is an object of the present invention to provide a mounting method and an apparatus therefor.

Means for Solving the Problems In order to achieve the above object, a first component mounting method according to the present invention includes a plurality of component supply devices each having a storage unit that holds a large number of components and stores the types of the components. Is mounted on a component supply unit that operates to position an arbitrary component supply device at a predetermined component removal position, and then, before the component mounting, the contents stored in the storage unit of each component supply device are operated by the component supply unit. Or by providing a reading device corresponding to each component supply device, reading by the fixed reading device, and comparing the type of the component read by the reading device with the type of the component at each pre-registered mounting position. In addition, the mounting position of the component supply device is inspected.

The second component mounting method uses a component supply device provided with storage means for storing the characteristics of the component, reads the component characteristics by reading means, and reads the component characteristics extracted from the component extraction position during the mounting operation. The characteristic is measured, and the characteristic of the mounted component is inspected by comparing the component characteristic read by the reading unit with the component characteristic measured by the measuring unit.

In addition, the component mounting apparatus of the present invention includes a plurality of component supply devices that hold a large number of components and have storage means for storing the component information, and that these component supply devices can be mounted in parallel and in the parallel direction. To a component supply unit capable of positioning an arbitrary component supply device at a predetermined component take-out position, fixed reading means for reading the storage contents of the storage means of each component supply device on the component supply unit, and reading means. And control means for performing predetermined control by processing the read component information.

Preferably, the storage means of the component supply device is constituted by a rewritable storage means. Also, in a component supply unit having a plurality of component supply tables on which a plurality of component supply devices can be mounted in parallel and each of which can be moved separately, a storage unit of each component supply device on the component supply table waiting for component mounting. There is provided a reading means for reading the stored contents of.

According to the component mounting method of the present invention, after the component supply device is sequentially mounted at a predetermined position of the component supply portion, the component supply portion is operated before component mounting to read by a fixed reading unit, or each component supply device is read. The type of the component can be automatically read from the storage unit of each component supply device by reading with the fixed reading unit provided corresponding to the device, and the type of the component at each mounting position registered in advance is compared. Thus, the inspection of the mounting state can be automatically performed, and the inspection can be performed without errors in a short time.

Also, when the characteristics of the components are stored in the storage unit of the component supply device and the component characteristics are automatically read by the reading unit on the component supply unit, when performing the characteristic inspection of each component at the time of mounting, the component Can be automatically entered without having to enter the characteristic data by obtaining it.

Further, the above-described component mounting method can be performed by the component mounting apparatus of the present invention, and an arbitrary component assembly can be detachably mounted by configuring the storage means of the component supply device with rewritable storage means. The component supply device configured as described above can be used. Furthermore, a plurality of component supply tables are provided in the component supply unit, and the component information in the storage unit of each component supply device is read during standby, and inspection of the mounting state of the component supply device and data input of component characteristics are performed. As a result, component mounting efficiency can be improved.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

1 to 3, reference numeral 1 denotes a component mounter, and a board positioning unit 2 in front of which a board on which components are to be mounted is positioned so that an arbitrary position thereof is located at a predetermined component mounting position C. And a substrate is supplied to the substrate positioning unit 2,
A substrate supply means 3 for discharging and a substrate discharge means 4 are provided.
A component supply unit 5 is provided at the rear of the component mounter 1.
As shown in FIG. 3, a predetermined component extraction position A in the component supply unit 5 is provided between the board positioning unit 2 and the component supply unit 5.
A rotary component mounting means 6 for taking out the component, measuring the characteristics of the component at the characteristic measurement position B, and mounting the component on the substrate at the component mounting position C in the substrate positioning section 2 is provided. Further, on the upper front surface of the component mounter 1, a display means 7 composed of a monitor television is provided.

The component supply unit 5 is provided with a pair of component supply tables 8, 8 that can move in the left-right direction, and a plurality of component cassettes 10 as component supply devices are arranged in parallel on each component supply table 8 in the moving direction. It is configured so as to be mountable, and is configured so that an arbitrary parts cassette 10 on the parts supply table 8 can be positioned corresponding to the parts extraction position A. A recording unit (described later) provided in the parts cassette 10 is provided above the parts supply unit 5.
Reading / writing means 9 for reading / writing data from / to 11 is provided corresponding to the component take-out position A and further provided corresponding to each component supply table 8.

As shown in FIG.
A tape-shaped electronic component assembly (hereinafter, simply referred to as a component assembly) 12 wound around 13 is attached. The component assembly 12 has a serial number for identification, a component name, an initial number of components held, A bar code 14 is displayed, which codes and displays characteristics such as the resistance value and the capacitance of the component. The parts cassette 10 is provided with a reel mounting part 15 at the rear for rotatably mounting the reels 13 of the parts assembly 12, and the parts assembly 12 is intermittently fed to the front end to sequentially place each part at the parts extraction position A. A feeding unit 16 for moving the unit is provided with a winding unit 17 for winding the cover tape of the component assembly 12 behind the unit, and a swing lever 18 for driving the feeding unit 16. A locking portion 19 for setting the parts cassette 10 to the component mounting machine 1 is provided behind the winding portion 17, and the locking portion 19 is provided with the recording portion 11.

As shown in FIG. 4, the recording unit 11 stores a component name, a held quantity, and component characteristics of the component assembly 12 in a readable and writable manner, and a removal detection input each time a component is removed. A processing operation unit 22 that subtracts 1 from the stored quantity stored in accordance with the signal and writes the value to the storage unit 21, and stores the storage contents of the storage unit 21 via the processing operation unit 22 of the component mounting machine 1. A transmission / reception unit 23 for transmitting / receiving data to / from the reading / writing means 9 provided in the component supply unit 5 is provided. At the position near the end of the movement trajectory of the permanent magnet 24 attached to the free end of the swing lever 18, there is provided an extraction detection unit 25 that detects a magnetic force and outputs a signal. A detection signal is output.

Further, as shown in FIG. 5, the control device of the component mounter 1 includes a mounting operation program for each production model, a component name, a characteristic value, and a used quantity of a component used for the mounting operation program, and a component supply table of each part cassette 10. A storage unit 26 for storing data such as a mounting position on the board 8 and a time required for mounting components on one board; controlling the operation of the component mounting machine 1 based on the program; Judge whether the mounting position is correct, judge the order of running out of parts, etc., and send / receive data to / from the recording unit 11 of the parts cassette 10 via the reading / writing means 9, Is provided on the display means 7 and the like.

Further, a component management unit for centrally managing the component assembly 12 is provided. As shown in FIG. 6, the component management unit includes a code reading means 28 for reading the barcode 14 provided on the component assembly 12 and a component name, a characteristic value, and a component for each serial number of each component assembly 12. A parts database 30 for storing data such as the quantity to be held, a read / write means 31 for reading and writing these data to and from the recording unit 11 of the parts cassette 10, and a control unit 29 for controlling these operations And

In the above configuration, the component mounting process by the component mounting machine including the loading and unloading of components to and from the component management unit will be described with reference to the flowchart of FIG.

At step # 1 based on the predetermined production model, the parts assembly 12
Is attached to the parts cassette 10. Next, in step # 2, the bar code 14 is read by the code reading means 28, and the data of the component name, the component characteristic value, and the held quantity of the component assembly 12 are taken out from the component database 30, and read in step # 3. This data is written to the storage unit 21 of the recording unit 11 of the parts cassette 10 by the writing unit 31. Note that the part names and part characteristic values read from the barcode 14 are stored in the storage unit.
21 may be written.

Next, the part cassettes 10 are transported to the component mounter 1 in step # 4, and the respective component cassettes 10 are mounted in predetermined positions on the component supply table 8 of the component supply unit 5 in a predetermined order in step # 5. The operation of combining the parts cassettes 10 according to the mounting order may be performed by the parts management unit, and may be transported and set collectively on the parts supply table 8. When the mounting of all the parts cassettes 10 is completed, a mounting check command is input to the component mounter 1. The control unit 27 of the component mounter 1 is a storage unit
Step # based on the program entered in 26
At 6, the component supply table 8 is sequentially moved, and the reading / writing means 9 reads each component name from the storage unit 21 of each part cassette 10. Next, the parts cassette read in step # 7
By comparing the ten component names with the component names of the respective mounting positions stored in the storage unit 26 of the component mounting machine 1, it is determined whether or not each component is set at a predetermined position, and the result is shown in FIG. It is displayed on the display means 7 as shown. If there is a setting error, reset in step # 8 and return to step # 7. At this time, the parts cassettes 10 may be replaced individually, or the parts cassettes 10 on the parts supply table 8 may be replaced collectively. In addition, the parts cassette 10
Can be moved to the next step using the other component supply table 8 while the replacement is performed. Next, if it is set correctly, the process proceeds to step # 9 to start the component mounting work.

In this component mounting work, the component is taken out from the component take-out position A by the component mounting means 6, and the characteristic value of the component is measured at the characteristic measurement position B.
Is compared with the characteristic value stored in the storage unit 26 of the component mounter 1. If the characteristic value is not appropriate, the component is not mounted and the component is discarded at the disposal position D, and the same component cassette is used. The next component is taken out from 10 and a component having an appropriate characteristic value is mounted at a predetermined position on the board at the next component mounting position C.

Also, during the component mounting operation, the swing lever 18 swings every time the component is taken out, and a take-out detection signal is output, and each time the process calculation unit 22 stores the component holding quantity stored in the storage unit 21. Rewriting is performed by subtracting one by one. In the case of performing a component shortage check during this component mounting work, a component shortage notice designation is input to the component mounter 1. In step # 10, the control unit 27 reads the current value of the component holding quantity stored in the storage unit 21 of each parts cassette 10, and based on the used quantity per board and the time required for mounting the board. The time required for each component to run out of components is calculated and displayed on the display means 7 in step # 11 as shown in FIG. Then, if necessary, the parts cassette 10 is replaced in step # 12. At this time, by replacing the component supply table 8, the component mounting work can be replaced without any interruption. Further, by determining the order in which the parts of each of the parts cassettes 10 have run out and replacing the parts cassettes 10 in that order, the parts are not run out, and a reduction in the operating rate of the component mounter 1 can be avoided.

Next, when the component mounting operation is completed in step # 13, the part cassette 10 is removed from the component supply unit 5 of the component mounter 1 in step # 14, and is conveyed to the component management unit in step # 15. In the component management unit, the barcode 14 of the component assembly 12 is read by the code reading unit 28 in step # 16,
A part name stored in the storage unit 21 of the parts cassette 10,
The characteristic value and the number of remaining components are read by the reading / writing means 31, and the data is stored in the component database 30 together with the serial number of the component assembly 12. Thereafter, in step # 17, the component assembly 12 is removed from the parts cassette 10.

The present invention can be applied to a component supply device other than the parts cassette 10. For example, as shown in FIG.
A bulk cassette type component supply device 41 containing a large number of components in a container, as shown in FIG. 11, a stick type component supply device 42 holding components slidably on a stick-shaped guide member, and FIG. As shown, a tray-type component supply device 43 in which components are arranged and stored in a tray can also be applied to the present invention. Note that these component supply devices 41, 42, 43
Is a recording unit 41 having a storage unit for storing the component holding quantity and a processing operation unit for rewriting the component holding quantity in accordance with the component take-out operation.
a, 42a and 43a, respectively.

The present invention can be configured in various modes in addition to the embodiments described above. For example, in the above embodiment, the reading / writing means 9 is arranged at the component take-out position A of the component supply section 5 and at the standby position of each component supply table 8, but is mounted above the standby position of the component supply table 8. A plurality of reading means may be arranged corresponding to each of the parts cassettes 10 to be read, and the reading may be performed collectively without moving the parts supply table 8.

Further, in the above embodiment, the component characteristics are read at once during the mounting inspection of the parts cassette 10 and are stored in the storage unit of the component mounter 1.
26, and when comparing with the characteristic measured value,
Although the reference value is read from the storage unit 26, the reference value may not be stored in the storage unit 26, and may be read from the storage unit 21 of the parts cassette 10 at the time of measurement.

According to the component mounting method of the present invention, as is apparent from the above description, the type of component is stored in the storage unit of the component supply device, and the component supply device is sequentially stored at a predetermined position of the component supply unit. After mounting, the component type of each component supply device can be automatically read by reading this with a reading unit before component mounting, and the component type at each mounting position registered in advance can be compared. Inspection of the mounting state can be performed automatically, and inspection can be performed without errors in a short time.

Also, in the case where the characteristic inspection of each component is performed at the time of mounting by using a component supply device in which the characteristic of the component is stored in the storage unit and automatically reading the component characteristic by the reading unit on the component supply unit, Can be automatically input without manually inputting the characteristic data.

Further, according to the component mounting apparatus of the present invention, the component mounting method can be performed, and when the storage unit of the component supply device is configured by a rewritable storage unit, an arbitrary component assembly can be detachably mounted. It is possible to use a component supply device to be mounted, further provide a plurality of component supply tables in the component supply unit, read the component information in the storage means of each component supply device during standby, and check the mounting state of the component supply device. By performing the inspection and inputting the data of the component characteristics, it is possible to improve the mounting efficiency of the component.

[Brief description of the drawings]

1 to 9 show an embodiment of the present invention. FIG. 1 is a side view showing a state in which a component supply device is set on a component mounting machine, FIG. 2 is a perspective view of the component mounting machine, and FIG. FIG. 4 is a plan view showing a schematic configuration of a component mounting machine, FIG. 4 is a block diagram of a recording unit, and FIG.
FIG. 6 is a block diagram of a control device of the component placement machine, FIG. 6 is a block diagram of a component management unit, FIG. 7 is a flowchart of component management between the component management unit and the component placement machine, and FIG. FIG. 9 is a display screen showing the determination result of the set position of FIG. 9, FIG.
11 and 12 are perspective views of another embodiment, respectively, and FIG. 13 is a perspective view showing a method of inspecting a set position of a conventional component supply device. DESCRIPTION OF SYMBOLS 1 ... Component mounting machine, 5 ... Component supply part, 8 ... Component supply stand, 9 ... Read / write means, 10 ... Part cassette (component supply device), 11 ... Recording part, 21 ... Storage unit, 26: Storage unit, 27: Control unit, A: Component removal position, B: Characteristic measurement position, C: Component mounting position.

──────────────────────────────────────────────────の Continued on the front page (72) Inventor Takashi Noyama 1006 Kazuma Kadoma, Osaka Pref. Matsushita Electric Industrial Co., Ltd. (72) Inventor Shinji Morimoto 1006 Kazuma, Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (58) Field surveyed (Int.Cl. ⁶ , DB name) H05K 13/04

Claims (5)

(57) [Claims] 1. A plurality of component supply devices having a storage means for holding a large number of components and storing the types of the components are operated to position an arbitrary component supply device at a predetermined component removal position. After being mounted on the component supply unit, the storage content of the storage unit of each component supply device is fixedly read by operating the component supply unit or providing the reading unit corresponding to each component supply device prior to component mounting. A component mounting method comprising: comparing a type of a component read by a reading unit; a type of a component at each mounting position registered in advance; and inspecting a mounting position of a component supply device. 2. A plurality of component supply devices which hold a large number of components and have storage means for storing characteristics of the components are operated to position an arbitrary component supply device at a predetermined component removal position. It is mounted on the component supply unit, and the storage contents of the storage unit of each component supply device are read and mounted by the fixed reading unit by operating the component supply unit or providing the reading unit corresponding to each component supply unit. During the operation, the characteristic of the component taken out from the component extraction position is measured, the component characteristic read by the reading unit is compared with the component characteristic measured by the measuring unit, and the characteristic inspection of the mounted component is performed. Component mounting method. 3. A plurality of component supply devices having a storage means for holding a large number of components and storing the component information, and these component supply devices can be mounted in parallel and moved in the parallel direction to arbitrarily move the component supply devices. Component supply unit capable of positioning the component supply device at a predetermined component removal position, fixed reading means for reading the storage contents of the storage means of each component supply device on the component supply unit, and component information read by the reading means And a control means for performing predetermined control by processing the component. 4. The component mounting apparatus according to claim 3, wherein the storage means of the component supply device comprises rewritable storage means. 5. A component supply unit comprising: a plurality of component supply units on which a plurality of component supply devices can be mounted in parallel and each of which can be individually moved; 4. The component mounting apparatus according to claim 3, further comprising a reading unit configured to read a content stored in a storage unit of the supply device.