JPH0513988A - Type switching method of electronic part mounter and electronic part mounter - Google Patents

Abstract

PURPOSE:To enable a part cassette to be automatically changed at the switch of device in type by a method wherein a part feeder required to be replaced is discriminated by the control of a electronic part mounter on the basin of the part names of a part feeder and the designations of parts required by mounting programs after the switch of device in type, and the control concerned directs the replacement of a part feeder. CONSTITUTION:The designations and the mounting number of parts of the part cassettes 8 provided to a current part feed section 5 are read by a reader 11, and mounting programs after the switch of device in type are read also by the reader 11 from a central control section. In succession, the part cassettes 8 required to be replaced attendant on the switch of device in type are discriminated on the basin of part designations. The replacement instruction of the discriminated part cassettes 8 is outputted from an electronic part mounter to a central control section or a part control section, and the part cassettes 8 required to be replaced are collectively carried out behind the part feed section 5. Thereafter, the part cassettes 8 are replaced by a robot or an operator at the actual switch of device in type.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention, in an electronic component mounter for mounting various components such as electronic components on a circuit board or the like, automatically identifies the component supply device to be replaced when switching the model of the electronic component mounting target. The present invention relates to a model switching method for exchanging and electronic component mounting machine for implementing the method.

[0002]

2. Description of the Related Art Conventionally, for example, in an electronic component mounting machine for mounting electronic components on a substrate, a tape-shaped electronic component assembly formed by winding a tape-shaped holding member accommodating and holding a large number of electronic components on a reel is supplied. The parts cassette is mounted on a device (hereinafter referred to as a parts cassette), and the parts cassette is mounted on a parts supply unit of an electronic parts mounter in a predetermined order. At the time of component mounting, the component supply section operates to position the parts cassettes holding the predetermined types of electronic components in order to the component removal position, and each parts cassette sequentially sends out the electronic components to the component removal position, depending on the mounting order. Then, predetermined electronic components are sequentially supplied to the component taking-out position.

A conventional specific example will be described with reference to FIG. In the figure, reference numeral 1 is an electronic component mounting machine, and a board positioning portion 2 for positioning a board on which a component is to be mounted so that an arbitrary position thereof is located at a predetermined component mounting position C, and this board positioning portion. The substrate is supplied to and discharged from No. 2. A board supply means 3 and a board discharge means 4 are provided, and a component supply section 5 is provided at the rear of the electronic component mounter 1. Between the board positioning unit 2 and the component supply unit 5, a component is taken out at a predetermined component take-out position A in the component supply unit 5, and a component is mounted on the board at a component mounting position C in the board positioning unit 2. A mounting means 6 is provided.

The component supply unit 5 is provided with a component supply base 7 which is movable in the left-right direction. A plurality of parts cassettes 8 can be mounted in parallel on each component supply table 7 in the moving direction, and an arbitrary parts cassette 8 on the component supply table 7 can be made to correspond to a component extraction position A.

As described above, in the electronic component mounting machine 1, a person checks the arrangement programs of the parts cassettes 8 which are respectively created based on the mounting programs before and after the switching of the board model, and determines the parts cassette 8 to be replaced. ,
After confirming the position of the parts cassette 8 on the parts supply table 7, the parts cassette 8 was exchanged and the model switching was completed.

[0006]

However, in the above-mentioned structure, the parts cassette 8 to be exchanged is discriminated by a person when a model change occurs,
It may take time to replace the parts cassette 8 due to the model change, and the parts cassette 8 to be replaced may be missed. In that case, after the mounting machine is operated, a mounting error is detected and the mounting machine is There was a problem that it was stopped and the leakage of the replacement was found by investigating the cause, and the wasted time during that time was enormous.

The present invention is to solve the above problems,
An object of the present invention is to provide a model switching method in which an electronic component mounting machine automatically instructs replacement of a component supply device when switching a model of a component mounting target, and an electronic component mounting machine for carrying out the method.

[0008]

In order to achieve the above object, the present invention provides a method for switching a model of a component mounting target in an electronic component mounting machine in which a plurality of component supplying devices holding a large number of components are arranged in a component supplying section. , The control unit of the electronic component mounter reads at least the information about the component name of the component supply device arranged in the component supply unit, reads the mounting program after the model change, and identifies the component supply device that needs replacement from the component name. The electronic component mounter control unit issues an instruction to replace the component supply device to be replaced.

Preferably, not only the name of the component but also the information on the quantity of mounted components is read, and the component supply device having the small number of mounted components is identified as the component supply device that needs to be replaced.

Further, the electronic component mounter of the present invention includes a component supply section in which a component supply device having at least a recording processing means for readablely storing the current information relating to the component name and the mounting quantity is arranged, and a component supply unit. Drive means for driving the parts in the parallel direction of the component supply device, reading means for reading the component information from the recording processing means of each component supply device, storage means for storing the read component information and the mounting program after model switching, And a control unit that identifies the component supply device to be replaced at the time of model change from the mounting information after the model change and the mounting program after the model change, and controls the drive unit so that the component supply device is sequentially positioned at the replacement position. It is a thing.

[0011]

Therefore, according to the present invention, with the above-described structure, the component supply device which is required to be replaced is selected from the component name of the component supply device arranged in the component supply unit and the component name required by the mounting program after the model change. By identifying the control section of the mounting machine and instructing the replacement, it is possible to automatically replace the model in a short time, and there is no fear that the component supply device may be missed. In addition, since the control unit of each electronic component mounter issues a replacement instruction simply by making the control unit of the electronic component mounter read the mounting program after switching the model, the data of the central control unit that controls many electronic component mounters, etc. The processing can be reduced, and the model switching can be automated without using a complicated data transmission system.

Further, if the number of mounted components mounted on each component supply device is also taken in as data and exchanged even when the number of mounted components is small, it is possible to replace the component supply device due to a shortage of components after model switching. It is also possible to eliminate the inconvenience of being necessary.

According to the electronic component mounter of the present invention,
The component supply device is provided with a recording processing unit that makes it possible to read out the current information about the component name and the mounting quantity, and the component information reading unit reads the information, so that high reliability is achieved by simple data processing from the component supply unit itself. It is possible to obtain the current part information, and the control unit drives and controls the drive means of the component supply unit to move the component supply device to be replaced to the replacement position, so that the function of the component supply unit can be used effectively. It can be easily replaced.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A model switching method and an electronic component mounting machine in an electronic component mounting machine according to an embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 is an electronic component mounting machine, and its configuration is substantially the same as that described in the conventional example shown in FIG. The description will be given with the same reference numerals.

A board positioning unit 2 for positioning a board on which a component is to be mounted is provided in the front of the electronic component mounting machine 1.
A component supply unit 5 is arranged at the rear of the electronic component mounter 1, and a component is taken out at a predetermined position of the component supply unit 5 between the board positioning unit 2 and the component supply unit 5, and at a predetermined position of the board positioning unit 2. A rotary type component mounting means (not shown) for mounting the component on the substrate is provided. Parts supply unit 5
Is provided with a pair of component supply bases 7 that are movable in the left-right direction, and a plurality of parts cassettes 8 are arranged in parallel in the movement direction.
Is arranged so as to correspond to the component take-out position.

As shown in FIG. 2, the electronic component mounting machine 1 is provided with a driving means 9 for driving the respective operating portions such as the board positioning portion 2, the component mounting means and the component supply base 7 based on a predetermined execution program. A control unit 10 is provided for controlling the above. The control unit 10 is provided with a first storage unit 12 to which an execution program or the like is input from the central control unit, the component information read by the reading unit 11 is input, and the programs and the component information are stored. There is. As shown in FIG. 1, the reading means 11 is arranged at an appropriate position on the component supply unit 5 corresponding to each component supply table 7, and is provided in the parts cassette 8 on the component supply table 7 as described later. The component information stored in the recording processing means 20 is readable.

As shown in FIG. 3, the parts cassette 8 is equipped with a tape-shaped electronic component assembly (hereinafter simply referred to as component assembly) 13 wound around a reel.
The reel of the component assembly 13 is provided with a bar code 14 in which codes such as an identification serial number, a component name, an initial holding number of the component, a characteristic of the component such as a resistance value and an electrostatic capacitance are displayed. Then, the parts cassette 8 is the parts assembly 13
A reel mounting portion 15 for rotatably mounting the components is provided at the rear portion thereof, and a feeding portion 16 for intermittently feeding the component assembly 13 to the front end to sequentially move each component to the component take-out position A.
However, a winding portion 17 for winding the cover tape of the component assembly 13 and a swing lever 18 for driving the feeding portion 16 are provided behind it. Clamping means 19 for setting the parts cassette 8 on the electronic component mounting machine 1 is provided at the rear of the winding section 17.
A recording processing means 20 is arranged between 7 and the clamp means 19.

The recording processing means 20, as shown in FIG. 14, is a second storage means 21 for reading the part name, the number of held parts, the part characteristics, etc. of the part assembly 13 and storing them in a writable manner.
And a detecting means 22 for detecting the take-out operation of the component, and 1 is subtracted from the stored quantity stored in accordance with the take-out detection signal inputted from the detecting means 22 and the value is written in the second storing means 21. For transmitting / receiving the processing operation means 23 and the stored contents of the second storage means 21 between the processing operation means 23 and the reading means 11 provided in the electronic component mounting machine 1 or other reading or writing means. A transmitting / receiving means 24 is provided.

A specific configuration example of the recording processing means 20 will be described with reference to FIG. The detection means 22 is constituted by a reed switch 26 arranged to detect the approaching movement of the permanent magnet 25 attached to the free end portion of the swing lever 18 shown in FIG. Storage means 21
Is composed of a circuit board 29 on which an IC 27 that constitutes the main part thereof and other electronic components 28 are mounted, the transmitting / receiving means 24 is composed of a coil 30, and these reed switch 26, circuit board 29 and coil 30 are combined. It is arranged in the resin case 31 to form a unit.

In the above structure, when the component assembly 13 is mounted on the parts cassette 8, the barcode 14 is read in advance by the barcode reader, and the component name, the component characteristic value and the mounting of the component assembly 13 are loaded. The data such as the quantity is taken out from the component database, and these data are written in the second storage means 21 in the recording processing means 20 of the parts cassette 8 by the reading / writing means. The component name and the component characteristic value may be read from the barcode 14 and written in the second storage unit 21. The parts cassettes 8 are arranged according to the model of the circuit board and mounted at predetermined positions on the component supply base 7 of the component supply unit 5 in a predetermined order.

During the component mounting work, the swing lever 18 swings each time a component is picked up and a pick-up detection signal is output from the detection means 22, and the processing calculation means 23 stores the picked-up detection signal in the second storage means 21 each time. The number of stored parts is 1
It is rewritten by subtracting each, and the current installed quantity is always retained.

Further, during the component mounting work, a component outage check is appropriately performed. That is, the second of each parts cassette 8
The current value of the component mounting quantity stored in the storage means 21 is read, and the time until each component runs out based on the usage quantity per board and the time required for mounting one board. It is subtracted and displayed on the display means (not shown) as appropriate. The parts cassette 8 that needs to be replaced is prepared based on the information about the parts shortage, and the parts cassette 8 is replaced at an appropriate time. At this time, by exchanging the component supply base 7, the component mounting work can be exchanged without any interruption.

When switching the model of the circuit board, as shown in FIG. 6, first, in step 1, the reading means 11 reads the component name and the number of mounted components of each of the component cassettes 8 currently arranged in the component supply section 5. Next, in step 2, the mounting program after the model change is read from the central control unit. Then, in step 3, the parts cassette 8 that needs to be replaced when the model is changed is identified based on the part name, and in step 4, the number of parts mounted is checked for the parts cassette 8 to be used after the model change,
A component cassette 8 having a small number of mounted components is identified as a parts cassette 8 requiring replacement. When checking the mounting quantity, it may be judged by the absolute number of parts, but it is desirable to judge by the time when replacement is necessary in consideration of the number required for one board. Next, a replacement instruction is issued to the electronic component mounter 1 for the parts cassette 8 identified in step 5.
From a central control unit or a parts management unit (not shown), and the parts cassette 8 that needs to be replaced based on the output.
Are collected and delivered to the back of the component supply unit 5. After that, at the time of actual model switching, the process proceeds to step 6, in which the drive means 10 drives the component supply table 7 to sequentially move the parts cassette 8 requiring replacement to a predetermined replacement position,
The parts cassette 8 is exchanged by a robot or by the acquisition.
It should be noted that it is also possible to read the part name from the recording processing means 20 by the replacement reading means 11 and confirm whether or not the proper parts cassette 8 is mounted.

[0025]

As is apparent from the above embodiments, according to the model switching method and the electronic component mounting machine of the present invention, the component name of the component supply device arranged in the component supply unit and the mounting program after the model switching are required. By identifying the component supply device that needs to be replaced by the control part of the electronic component mounter based on the part name, and instructing the replacement, it is possible to automatically replace in a short period of time when switching models, and The replacement of the component supply device will not occur. Also, since the control unit of each electronic component mounter can issue a replacement instruction by simply loading the mounting program after the model change into the control unit of the electronic component mounter, a central control unit that controls many electronic component mounters It is possible to reduce the data processing and to automate the model switching without using a complicated data transmission system.

Furthermore, if the number of mounted parts mounted on each parts supply device is also taken in as data and can be replaced even when the number of parts mounted is small, replacement of the parts supply device due to shortage of parts after model change is possible. It is also possible to eliminate the inconvenience of being necessary.

According to the electronic component mounter of the present invention,
The component supply device is provided with a recording processing means for readablely storing the current information regarding the component name and the mounting quantity, and the component supply device itself reads the reliability of the data by reading the component information. It is possible to obtain the component information at a high current time, and to make full use of the function of the component supply unit by driving and controlling the drive means of the component supply unit by the control unit to move the component supply device to be replaced to the replacement position. Automatic exchange can be easily performed.

[Brief description of drawings]

FIG. 1 is a perspective view of an electronic component mounting machine according to an embodiment of the present invention.

FIG. 2 is a block diagram of a control unit of the electronic component mounting machine.

FIG. 3 is a front view of a component supply device of the electronic device mounting machine.

FIG. 4 is a block diagram showing a configuration of recording processing means of the electronic component mounting machine.

FIG. 5 is a front view showing an internal configuration of a recording processing unit of the electronic component mounting machine.

FIG. 6 is a process diagram showing a procedure of a model switching method according to an embodiment of the present invention.

FIG. 7 is a schematic plan view of a conventional electronic component mounter.

[Explanation of symbols]

5 Parts supply department 8 parts cassette (parts supply device) 9 Drive means 10 Control unit 11 Reading means 12 First storage means 20 Recording processing means 21 Second storage means

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Masatoshi Yanagawa             1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric             Sangyo Co., Ltd.

Claims (3)

[Claims] 1. A model switching method in an electronic component mounting machine, in which a plurality of component supply devices holding a large number of components are arranged in a component supply section, wherein the control section of the electronic component mounting machine is arranged in the component supply section. At least information about the component names of multiple component supply devices is read and the mounting program after model switching is read, the component supply device that needs replacement is identified from the component name, and the component supply to be replaced is performed from the control unit of the electronic component mounting machine. A method for changing a model in an electronic component mounting machine, which is characterized by issuing a device replacement instruction. 2. Reading the information on the number of mounted parts,
2. The model switching method in an electronic component mounter according to claim 1, wherein a component supply device having a small number of mounted components is identified as a component supply device that needs to be replaced. 3. A component supply unit in which a component supply device having a recording processing unit for storing at least current information relating to a component name and a mounting quantity is readably stored, and a component supply is driven in a parallel direction of the component supply device. Drive means for
A reading unit that reads the component information from the recording processing unit of each component supply device, a first storage unit and a second storage unit that store the read component information and the mounting program after the model change, and first and second thereof. And a control unit that identifies the component supply device to be replaced at the time of model switching from the component information of the storage unit and the mounting program after model switching, and controls the drive unit so that the component supply device is sequentially positioned at the replacement position. Electronic component mounter.