JPH07107959B2 - Electronic component automatic mounting machine - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an electronic component mounter that automatically mounts electronic components on a printed circuit board.

[Prior art]

Conventionally, as an electronic component automatic mounter, various electronic components such as fixed resistors, capacitors, and ICs, which are supplied by a component supply device, are automatically inserted into a specified component insertion position on a printed circuit board. There is an electronic component automatic insertion machine that does this.

In such an electronic component supply device, a plurality of component supply devices different for each component are provided for inserting various kinds of electronic components into one substrate, and the number of components that are used in a large amount is 1 Since it is not enough for one component supply device, a plurality of component supply devices are used to supply components for the same type of component.

At this time, conventionally, the correspondence relationship between a component and a component supply device that supplies the component is specified on the program so that each component supply device always supplies the same component.

Moreover, when a plurality of component supply devices are used for the same component, the component supply devices are continuously arranged side by side, and the component supply device at the next position is sequentially supplied every time the component of one component supply device is exhausted. The equipment is selected and specified so that many identical parts can be continuously supplied.

However, when components are supplied from a plurality of component supply devices in this way, if the correspondence between components and the component supply devices that supply these components is fixed on the program, the number of component supply devices that supply the same component will increase or decrease. When changing, there is a problem that the program itself must be changed.

In order to solve such a problem, for example, JP-A-53-8537
As can be seen in Japanese Patent Publication No. 2, the correspondence table between the types of parts and the storage unit is stored in the central control unit together with the insertion control program, and the above correspondence table is searched according to the program to find the parts of the same type. A desired storage unit is selected from the component storage unit having a plurality of storage units separately stored for each, and the components of the designated product type are sequentially ejected and automatically inserted into the substrate. When it becomes empty, change the search procedure in the above correspondence table, select another storage unit that contains parts of the same type as the storage unit that became empty, and sequentially discharge the parts of the specified type An automatic component insertion method has been proposed in which the insertion work is continued.

By doing this, the correspondence relationship between the type of parts and the storage unit (part supply device) is not fixed on the program, and when the storage unit for supplying the same part is increased or decreased, the correspondence table is changed and created. Since it is only necessary to store the data in memory, it is possible to effectively use the limited storage unit and to reduce the burden on the operator.

[Problems to be solved by the invention]

However, even with this method, when electronic components are continuously mounted on a large number of printed circuit boards,
Since there are not enough parts in the parts supply device (storage unit),
It is necessary to replenish each part at the right time.

In the above method, since no consideration is given to the timing of replenishing such components, the components in the component supply device run out and the mounting operation is stopped, which lowers the operation efficiency of the electronic component automatic mounting machine. There was a problem of doing.

The present invention has been made in view of the above problems, and in an electronic component automatic mounting machine, it is possible to easily increase or decrease the component supply device used for the same component without requiring a program change. At the same time, it is possible to replenish the parts at an appropriate time according to the usage status of each of the parts supply devices, and to improve the operation efficiency.

[Means for solving problems]

In order to achieve the above object, the present invention provides an electronic component automatic mounting machine that includes a plurality of component supply devices and that automatically mounts electronic components supplied from the component supply devices on a printed circuit board. As shown in the figure, a single component supply device B1, ..., Bn that supplies the same component only with one component supply device B11, ..., Bnn and a plurality of component supply devices A11,
A12, ... Provided with side-by-side component supply devices A1 ,.

That is, the component remaining amount detecting means C1, C2, ..., D1, ..., Dn for detecting that the component remaining amount of each component supply device A11, A12, ..., B11 ,. A management table storing means E storing a management table showing the correspondence between the types and the component supply devices for supplying the components, and the detection results of the component remaining amount detecting means C1, C2, ..., D1 ,. , Bnn are sequentially designated based on the management table stored in the storage means E, and the auxiliary parts supplying devices A1, ... Of the component supply device is selected, and if there is another component supply device that can be used, designation means F for sequentially designating it and selection means for selecting the component supply device designated by the designation means F are selected. G and the component remaining amount detecting means C1, C2, ..., D1, ..., Dn detect that the remaining amount of the component is low. Component supply device B11 single component feeder, ..., immediately actuates the alarm unit H during detection for BNN, component supply device features component feeder
An alarm control unit I for activating the alarm means H after the last component supply device is selected by the selecting means G at the time of detection of A11, A12, ... Is provided.

[Work]

According to the electronic component automatic mounter configured as described above, the designating means F operates according to the detection results of the component remaining amount detecting means C1, C2, ..., D1, ..., Dn and the management table stored in the management table storing means E. The parts supply device is sequentially specified, and the side parts supply device is specified.
When it is detected by the component non-detection means C1, C2, ... that the remaining amount of the components of the component supply devices A11, A12, ... It is determined whether or not the component supply device can be used, and if there is another component supply device that can be used, these are sequentially specified, and the selection means G selects the specified component supply device, so the management table is changed. Only by doing so, it is possible to easily increase or decrease the component supply device used for the same component.

Further, the alarm control unit I uses the remaining component amount detecting means D1, ...,
When Dn detects that the remaining amount of the parts of the individual parts supply device B11, ..., Bnn is low, the alarm means H is immediately activated and the parts supply devices A11, A12 in the auxiliary parts supply device are activated. When it is detected that the remaining amount of the parts of ..., Has become small, the alarm means H is operated after the last part supply device is selected by the selection means G.

Therefore, the parts replenishment time of the parts supply device in the adjacent parts supply device with a large amount of parts used is alarmed with a sufficient margin, and the parts replenishment time of the parts supply device in the independent parts supply device with a small amount of parts used also changes accordingly. Since the alarm is issued when the remaining amount becomes low, the parts can be efficiently replenished at an appropriate time according to the usage status of each parts supply device, and the operation efficiency is improved.

〔Example〕

An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 2 is an external perspective view showing an example of an electronic component automatic inserting machine embodying the present invention.

This electronic component inserting machine includes an electronic component inserting device 1, a board supplying device 2 for supplying a printed circuit board (hereinafter simply referred to as a "substrate") for inserting an electronic component into the electronic component inserting device 1, and an electronic component. The insertion device 1 includes a substrate unloading device 3 that unloads a substrate on which electronic components are inserted.

The electronic component insertion device 1 has a component insertion mechanism unit and a component insertion control unit built in the main body of the device, and two IC sequencers 4 and 5 on both sides of the upper portion.

One of the IC sequencers 4 is, for example, a 0.6 inch DIP type IC.
It is possible to store a plurality of IC cassettes 6 loaded with a plurality of the stacks containing the ICs, and the other IC sequencer 5 includes, for example, an IC cassette 7 loaded with a plurality of the stacks containing 0.3 inch DIP type ICs. It is possible to store more than one.

The electronic component insertion device 1 also includes an operation panel 8 having a drawable keyboard, a CRT display 9 for displaying input data, errors, warnings, and the like, and an indicator light 10 for operator call.

On the operation panel 8, insertion data such as the coordinates of the parts insertion point (parts symbol, insertion direction, coordinates of the insertion point, etc.), parts data of the part to be inserted (type and symbol of parts, number of lead wires or pins,
It is provided with keys for inputting various data such as the insertion spindle number) and board data (board size, positioning hole coordinates, etc.).

FIG. 3, FIG. 4 and FIG. 5 show this electronic component insertion device 1
FIG. 5 is a front view, a plan view and a right side view showing the component insertion mechanism section of FIG.

First, the outline of the operation of the electronic component inserting apparatus 1 will be described.

In this electronic component inserting apparatus 1, the board P is supplied from the board supply apparatus 2 by a board carry-in mechanism section 11 to move the board P.
It is carried in and mounted on 12 substrate mounting tables 13.

Then, the board P on which the parts are inserted is moved or rotated by moving or rotating the board mounting table 13 of the board moving mechanism unit 12.
The upper position is positioned at the insertion position O (Fig. 4).

On the other hand, electronic parts are supplied from the IC sequencers 4, 5, the axial lead component supply device 14 (FIG. 5), and a component supply device such as a radial lead component supply device (not shown).

Then, the supplied components are inserted into the board P and fixed by the insertion head of the insertion head 15 arranged above the board mounting table 13 and the clinch head of the clinch head 16 arranged below.

After the components are inserted, the board P is pulled out from the board mounting table 13 by the board carry-out mechanism section 17 to carry out the board carry-out device 3
Transport to.

Next, the details of each of these operations will be described.

(1) Substrate loading operation The substrate loading mechanism section 11 uses the pushing rod 23 that is loaded with the substrate P from the magazine in the substrate feeding device 2 shown in FIG. As shown in FIG. 4, the board P is pushed into the board frame 25 fixed on the board mounting table 13 along the X-axis direction.

Then, the locking claw formed at the tip of the lever 27 fixed to the rod 26 axially supported in the same direction as the substrate frame 25 on the substrate mounting table 13 is fitted into the positioning reference hole formed in the substrate P,
The board P is positioned and locked on the board mounting table 13.

(2) Component insertion position selection operation The board mounting table 13 of the board moving mechanism 12 is mounted on the X frame 31 which can move in the X direction on the base frame 30.
A Y frame placed on the frame 31 and movable in the Y direction
It is rotatably mounted on the upper surface of 32.

The X frame 31 is slidably mounted on a pair of parallel guides 33, 33 fixed on the base frame 30 in the X-axis direction, and is fed by a servo motor 34 such as a DC motor to a feed screw 35.
It is possible to reciprocate in the X direction via.

In addition, the Y frame 32 has Y on both sides on the X frame 31.
It is slidably mounted on guideways 36, 36 fixed in the axial direction, and can be reciprocated in the Y direction via a feed screw 38 by a servomotor 37 such as a DC motor.

Further, the board mounting table 13 is rotatably supported by fitting its outer peripheral portion into the grooves of the guide rollers 39 with grooves rotatably supported at the four corners on the Y frame 32. A pinion 41 rotated by a motor 40 and a gear 13a formed inside the lower portion of the substrate mounting table 13 itself meshing with the pinion 41 can rotate about a central axis (θ axis).

Therefore, the motors 34, 37, 40 are driven and controlled in accordance with the insertion data such as the coordinates of the designated component insertion point to move the board mounting table 13 in the X direction and the Y direction, and the central axis (θ Around the axis) to the desired angle from the reference position, eg 90 °, 180
Rotate by 270 or 270 degrees to position a predetermined component insertion point on the substrate P at the insertion position O.

(3) Component supply operation As shown in Fig. 3, the required IC components are selected and carried out from the IC cassettes 6 and 7 mounted on the IC sequencers 4 and 5 provided on both sides of the board mounting table 13 according to the insertion data. Then, each conveyor 45 guides it to the short 46, and while lowering the short 46, the additional function device 47 checks the IC component supply direction, corrects the posture, and waits for the parts at the exit of the short 46. Supply position.

Further, as shown in FIG. 5, an axial lead component supply device 14 provided at the rear of the board mounting table 13 and a radial lead component supply device (not shown) provide axial lead components such as capacitors or fixed resistors. A radial lead part such as a container or a diode is pulled out from a reel 48 around which a radial lead part is wound or a carton 49 which is folded and stored to supply an axial lead part or a radial lead part.

(4) Component insertion operation The insertion head portion 15 is provided with a plurality of insertion spindles 52 each having an insertion head 51 corresponding to the type of the insertion component at the tip thereof on the outer surface of the rotatably arranged truncated pyramid-shaped pedestal base 50. There is.

On the other hand, the clinch head portion 16 also has a plurality of clinch heads (not shown) according to the inserted parts.

Therefore, the insertion head 51 of the insertion head portion 15 and the clinch head of the clinch head portion 16 are selected according to the component to be inserted and positioned at the component insertion position O, and then the insertion head 51 and the clinch head are moved together. Then, the lead wire of the component is inserted into the insertion hole of the substrate P by the insertion head 51, and the tip of the lead wire of the component is bent by the clinch head to fix the component to the substrate P.

(5) Board unloading operation After all components are inserted, the rod 26 on the board mounting table 13 is engaged with the release tool 55, and the lever 27 is rotated to release the locking claw to lock the board P. To cancel.

Then, the substrate unloading mechanism unit 17 engages the pull-out claw 58 attached to the tip of the pull-out rod 57 driven by the drive chain 56 with the pushing-side edge of the substrate P to pull out the substrate P from the substrate mounting table 13. The substrate P pulled out by the unloading conveyor 59 is transported to the substrate unloading device 3.

6 and 7 are a front view and a side view showing an example of the IC cassette 6. Since the IC cassette 7 is completely the same, the description is omitted.

The IC cassette 6 comprises a cassette body 61 and a plurality of stacks 6 accommodating a large number of IC components stacked therein.

The cassette body 61 has a handle 64 for transporting at a substantially central portion of an upper surface 63, and has stoppers 65 and guide plates 66 for loading the IC sequencer 4 at both ends.

Further, the cassette body 61 has both end surfaces connected to the inclined plates 67 so that the upper stack 62 surely descends when the lowermost stack 62 of the plurality of stacks 62 stored therein is pulled out. There is.

Further, the bottom of the cassette body 61 has an opening 68
Is formed as. This opening 68 is used as a storage port for loading the stick 62 into the cassette body 61, and when the IC sequencer 4 is loaded and parts are supplied, all the parts 62 are emptied and empty. It is used as a delivery port that sends out sequentially.

Then, on both sides of the cassette body 61, a pair of stack receivers 70, 70 for receiving the inside of the stored stack 62 near the opening 68 are provided.

Each of the stack receivers 70 has a bracket 71, 71 fixed on both sides of the cassette body 61, and support levers 73, 73 each having a receiving claw 72, 72 formed at the tip thereof, pivotally supported by shafts 74, 74. Then
The receiving lever 73 is biased by a coil spring 75 wound around a shaft 74 in the direction in which the receiving claw 72 faces the opening 68 of the cassette body 61.

Therefore, the stack receivers 70 stop and receive the stacks 62 housed in the cassette body 61 by the respective receiving claws 72.

The receiving pawls 72 of the receiving levers 73, 73 of the respective stack receivers 70 have openings in the cassette body 61 as shown in FIG.
By forming an inclined surface 72a that protrudes inward with respect to 68, and by pushing up the stick 62 from below the opening 68 toward the opening 68, the receiving levers 73, 73 are shown by the alternate long and short dash line in FIG. As described above, the stick 62 is pivoted outward and retracted so that the stick 62 is inserted.

A guide piece 77 for storing and delivering the stick 62 is attached to the lower end of the cassette body 61.

Further, a slit-like opening 78 used for detecting the remaining amount of the stick 62 accommodated inside when the components are supplied is formed on the side surface of the cassette body 61.

FIG. 8 is a block diagram showing the IC component supply device of the IC sequencer 4. The same applies to the IC component supply device of the IC sequencer 5.

The IC cassette 6 is loaded into the IC component supplying device 80 by inclining the front side thereof downward with respect to the horizontal and pushing down the stopper 65 until the stopper 65 contacts the upper end of the machine frame 81.

At this time, the IC component supply device 80 causes the receiving levers 73, 73 of the stack receiver 70 of the IC cassette 6 to be withdrawn from the stack receiving position by the protruding body 82 fixedly arranged at the lower part.

As a result, the stick 62 at the bottom of the cassette body 61 of the IC cassette 6 drops from the opening 68, and the receiving pawl 83 and the stack operated by the solenoid 96 described later.
It is received by an unillustrated receiving claw that supports the rear end portion of 62, and stops at the position sent out from the opening 68.

Therefore, the IC component 84 filled in this stick 62
Due to the free fall effect due to the slanted arrangement, it moves from the tip of the stick 62 to the guide path 85 of the IC sequencer 4 and slides down.

On the other hand, above the guide path 85 of the IC component supply device 80, a rear end portion is rotatably supported by a shaft 87, is urged by a spring 88, and is stopped by a solenoid 89. A stopper 91 is provided.

Then, when the solenoid 89 is inoperative, the upstream stopper 91 retracts from the guide path 85, while the downstream stopper 90 projects to the guide path 85 and stops by stopping the tip of the IC component 84 that has slid down. Let

Further, when the solenoid 89 operates and pulls up the plunger 89a, the upstream stopper 91 projects into the guide path 85 and presses the IC component 84 next to the frontmost IC component 84 from above to lock it. The downstream stopper 90 retreats upward from the guide path 85 and sends out the front IC component 84.

After the frontmost IC component 84 is delivered, the solenoid 89 is deactivated and the IC component 84 locked by the stopper 91 advances to a position where it is stopped by the stopper 90.

In this way, the IC parts from the stick 62 of the IC cassette 6 to the IC parts
84 are sent out in sequence.

Also, this IC component supply device 80 is an IC of one stick 62.
A component non-detector 93 is provided for detecting that the component 84 is gone.

The component non-detector 93 is composed of a transmission type photo sensor composed of a light emitting device 94 and a light receiving device 95 arranged opposite to each other through a through hole provided in the guide path 85, and there is no part on the guide path 85. Occasionally, the light emitted from the light emitting device 94 is incident on the light receiving device 95, and it is detected that the parts of the stick 62 currently supplying the parts are gone.

When the component-free detector 95 detects that there is no component, the solenoid 96 is actuated by the control unit, which will be described later, to retract the receiving claw 83, and the empty stack 62 at the bottom of the IC cassette 6 is removed. It is dropped into an appropriate receptacle provided below, and the next stack 62 is delivered from the opening 68 of the IC cassette 6.

At this time, the pressing claw 97 which is operated by the solenoid 96 in conjunction with the receiving claw 83 projects into the IC cassette 6 and locks the next stack 62 while the receiving claw 83 is retracted.

Then, when the receiving claw 83 is returned after the empty stick 62 is dropped, the pressing claw 97 is also returned to release the locking, and the next stack 62 is sent onto the receiving claw 83.

In this way, the stack 62 is sequentially sent from the IC cassette 6.

Further, in the IC component supply device 80, the last step 62 capable of supplying components is the last one, that is, the component remaining amount of the IC component supply device 80 is a predetermined set remaining amount. A component remaining amount detector 100 is provided for detecting the following (a small amount of component remaining).

The component remaining amount detector 100 is rotatably supported by a shaft 101 and is urged by a spring 102 so as to rotate, and a cassette main body 61 of an IC cassette 6 is provided.
A detection lever 104 formed with a detection end 103 protruding into the detection opening 78 (see FIG. 7), and a switch 106 actuated by an operation lever 105 formed in the middle rear portion of the detection lever 104. Consists of.

In the component remaining amount detector 100, when the stick 62 remains in the IC cassette 6, the detecting end 103 of the stick detecting lever 104 is in contact with the stick 62, so that the stick detecting lever 104 is in the state shown in the figure. Switch 106 is on.

Then, when the last stick 62 is sent from the IC cassette 6, the detection end 103 of the stick detection lever 104 is no longer regulated by the stick 62, so the stick detection lever 10
4 turns in the direction of the arrow in the figure to detect that the switch 106 is turned off and the IC cassette 6 is emptied, that is, the stick 62 capable of supplying the parts is the remaining one. .

FIG. 9 is a block diagram showing the component supply / component compensation warning control unit in the component insertion control unit of the electronic component insertion apparatus 1.

As described above, the electronic component insertion device 1 includes a plurality of IC component supply devices 80 in the IC sequencers 4 and 5 which are the auxiliary component supply devices.

Then, each IC component supply device 80 has a component non-detector 93 that detects that the components in the stack 62 that are currently supplying components are exhausted (no component) and a stack 62 that can supply components. It is equipped with a component remaining amount detector 100 that detects that the number of components is one (the remaining amount of components is small).

The component remaining amount detector 100 corresponds to the component remaining amount detecting means C1, C2 ... In FIG.

Further, this electronic component inserting apparatus 1 includes an axial-radial component (hereinafter referred to as an “AR component”) which is one of a plurality of the axial lead component supplying devices 14 (FIG. 5) described above and a radial lead component supplying device (not shown). Supply device 11
Equipped with 0.

Then, each AR component supply device 110, the remaining amount of the tape taping the component that is currently supplying the component has become less than or equal to a predetermined set amount, that is, the component remaining amount is less than or equal to a predetermined set remaining amount. A component remaining amount detector 111 is provided for detecting a failure (a small amount of component remaining).

When the AR component supply device 110 is a single component supply device, this component remaining amount detector 111 corresponds to the component remaining amount detection means D1, ..., Dn in FIG. Also doubles.

That is, in the case of taping parts, a new tape is attached to the end of the tape that is currently supplying parts to replenish the parts, and the remaining amount of the tape that is currently supplying parts has fallen below a certain amount. Sometimes it is necessary to move to the next AR component supply device 110 while leaving a margin on the tape, so when the remaining amount of the component is low, there is no component at the same time.

On the other hand, in the component management table storage unit 115 of the component supply / component replenishment warning control unit, the component data, that is, the component symbol of the component, the number of pins of the component, which has been keyed in advance by the operation panel 8,
A management table is stored which shows the insertion spindle number and the predetermined unique number (unit number) of the component supply device (hereinafter also referred to as "unit") 80 or 110 to be used.

That is, the parts management table storage unit 115 also serves as the management table storage means C of FIG. 1 with a part thereof, and stores a management table showing the correspondence relationship between the parts and the unit for supplying the parts. .

The number of units used per component may be stored as independent data.

In this case, each time a small amount of remaining parts in each unit is detected, the unit number counter used for each part symbol is incremented (+1), for example, and this count value and the stored number of units used are stored. It is possible to determine the availability of another unit and the number of remaining units by comparing the above.

The unit usage status storage unit 116 stores the usage status of each unit, that is, the unit number and the presence / absence of parts of the unit.

That is, in this embodiment, the parts management table storage unit 115
Store only the table of parts and unit numbers used,
The unit usage status storage unit 116 separately manages the usage status of the unit used for each component.

The unit usage status determination unit 117 is configured to use the component supply devices 80 and 110.
When the component remaining amount detectors 100 and 111 detect the low component remaining amount, the component management table storage unit 115 and the unit usage status storage unit 116 are searched, and another unit is used for the component with the low component remaining amount. Whether or not it can be used (whether or not another unit can be used) and when the other unit can be used, it is determined whether the number of remaining units is one or more.

Then, this unit usage status determination unit 117 sends a message to the use unit change designating unit 119 together with the unit number to be used next when another unit can be used, and another unit cannot be used or another unit can be used. When the number of remaining units is one, the fact is sent to the alarm control unit 121 together with a part symbol indicating that the number of remaining parts is low, whether it is an IC part or an AR part.

The unit usage status determination unit 117 stores, in the unit usage status storage unit 116, no parts as the usage status of the unit sent to the usage unit change designation unit 119.

The unit-to-use change designation unit 119 receives the unit number to be used next and whether it is an IC part or an AR part from the unit usage status judgment unit 117. The sequence controller 120 outputs the information for changing the unit to be used while waiting for a signal to the unit of the unit number received from the unit usage status judging unit 117.
Send to.

The sequence controller 120 is the selection means G in FIG. 1, and when it receives the change designation of the use unit from the use unit change designation unit 119, it supplies the component supply devices 80 and 110 to supply the components of the specified unit number. Equipment 80,1
Select 10.

When the alarm control unit 121 receives from the unit usage status determination unit 117 that another unit cannot be used or that another unit can be used but the remaining one unit is one unit, the AR unit that can use another unit is Immediately, another unit can be used
The IC component waits for the signal from the component non-detector 93, lights the indicator light 10 (yellow light) to display a component supply warning, and displays the CRT.
The number of the spare parts is displayed on the display 9, and when another unit cannot be used, the indicator lamp 10 (red lamp) is turned on to stop the operation.

In this embodiment, the unit usage status storage unit
The unit 116, the unit usage status determination unit 117, and the unit usage change designation unit 119 constitute the designation means D of FIG.

Next, the component supply / control by this control unit configured in this way
The component supply warning control will be described with reference to FIG.

When activated, the electronic component insertion device 1 takes out a component and inserts the component into the board. At this time, as described above, the remaining amount of components is detected by the remaining amount detectors 100 and 111 of the respective component supply devices 80 and 110, and when the remaining amount of components is larger than the set amount, the removal and insertion of the components are repeatedly executed. There is.

Then, the component remaining amount detectors 100, 111 of the component supply devices 80, 110
When the remaining amount of the component is detected, the component management table and the unit usage status are searched to determine whether another unit can be used for the component for which the remaining amount of the component is detected.

At this time, if it is not possible to use another unit, it is determined whether the component whose remaining amount is low is an IC component or an AR component.

Then, if the part is an AR part, the remaining amount of the AR part is low at the same time as described above, so that the machine is immediately stopped and an alarm (red light) for notifying them is displayed.

If the component is an IC component, an alarm indicating that the component is low is displayed, but for the IC component, the component for one stick can be supplied even after the component residual amount is detected, so the absence of the component is detected. Until this is done, the parts are taken out and inserted, and when the absence of parts is detected, the machine is stopped and an alarm (red light) is displayed to inform it.

On the other hand, if another unit can be used for the part for which the remaining amount of the part is detected, it is determined whether the number of remaining units that can be used is one or more.

If the number of remaining units is more than one, it is not necessary to replenish the parts yet, so if the part with no remaining parts is an AR part, immediately select the next unit, and if it is an IC part, the part of that unit is selected. Select the next unit when nothing is detected.

Also, when the number of remaining units is one, it is still possible to supply the parts, but since that unit becomes the last unit, it is necessary to replenish the parts. Depending on whether it is an AR part, if the part is an AR part, the last unit is immediately selected and an alarm (yellow light) is displayed, and if it is an IC part, the last unit is displayed when the current unit runs out of parts. After selecting, the alarm (yellow light) is displayed.

In this way, warnings (alarms) for component replenishment are displayed at different timings depending on the number of units (component supply devices) used for the same component.

The alarm display timing of this embodiment is summarized as follows.

(1) In the case of a single component supply device that uses one unit An alarm is displayed when the IC component has only one remaining stack and when the axial and radial lead components have less than a certain length.

(2) In the case of a side-by-side component supply device that uses multiple units An alarm is displayed when the remaining IC components, axial and radial lead components are all in one unit.

In the above explanation, there is no distinction between the component remaining amount detector and the component non-detector in the AR component, only the component remaining amount detector 111,
For example, by providing a photo sensor for detecting the position of the end portion of the tape at two places where the remaining amount of the tape is long and short, the remaining amount detector of the component and the non-detector of the component are used.
It is possible to perform the same processing regardless of the parts and AR parts.

As described above, this electronic component insertion device stores the component management table indicating the correspondence relationship between the component and the component supply device that supplies the component, and sequentially specifies the component supply device to be used based on the management table. I have to.

Therefore, when the number of parts supply devices used for the same part is increased or decreased, it is only necessary to rewrite the management table.
Since it is not necessary to change the program, it is possible to easily cope with an increase / decrease change in the component supply device used for the same component.

Further, in the electronic component insertion device of the above embodiment, since the component replenishment warning is issued according to the number of the component replenishing devices used by the same component, it is possible to warn the replenishment of the component at an appropriate time. Will be efficient.

In the above embodiment, when a plurality of component supply devices are used for the same component, a component replenishment warning is issued when the remaining one component supply device (unit) is reached. When the usage amount is extremely large, for example, a warning may be given when the remaining two units are reached, or the warning timing may be changed for each individual component.

Note that the present invention is not limited to the electronic component automatic insertion machine as described above, but an electronic component mounting machine (chip) for mounting the electronic component on the cream solder that is adhered to the printed circuit board or applied on the printed circuit board. The same can be applied to other electronic component automatic mounting machines such as mounters).

〔The invention's effect〕

As described above, according to the present invention, a component management table indicating a correspondence relationship between a component and a component supply device that supplies this component is stored, and the component supply device to be used is sequentially specified based on the management table. Therefore, it is possible to easily increase or decrease the component supply device used for the same component without changing the program.

Further, when the component remaining amount detecting device detects that the component remaining amount of the component supplying device is low, an alarm is immediately issued when the component supplying device of the individual component supplying device is detected, and the auxiliary component supplying device When detected for a component feeder, an alarm is issued after the last component feeder has been selected.

Therefore, the parts replenishment time of the parts supply device in the adjacent parts supply device with a large amount of parts used is alarmed with a sufficient margin, and the parts replenishment time of the parts supply device in the independent parts supply device with a small amount of parts used also changes accordingly. An alarm is issued when the remaining amount becomes low, so the worker can efficiently replenish the parts at the appropriate time according to the usage status of each parts supply device, improving the operating efficiency of the electronic parts mounting machine. To do.

[Brief description of drawings]

FIG. 1 is a functional block diagram showing the structure of the present invention, FIG. 2 is an external perspective view showing an example of an automatic electronic component inserting machine embodying the present invention, and FIGS. 3, 4, and 5 are the same. The front view, the plan view and the side view showing the mechanism part of the electronic component inserting device, FIGS. 6 and 7 are the front view and the side view showing the IC cassette, and FIG. 8 is the structure showing the IC component supplying device. FIG. 9 and FIG. 9 are block diagrams of the essential parts showing the control unit of this electronic component insertion device, and FIG. 10 is a flow chart for explaining the component supply / component supply warning control by the control unit. 1 ... Electronic component insertion device, 2 ... Board supply device 3 ... Board unloading device, 4,5 ... IC sequencer 6,7 ... IC cassette, 8 ... Operation panel 9 ... CRT display, 10 ... … Indicator 13 …… Board mounting table 14 …… Axial lead parts supply device 15 …… Insertion head part, 16 …… Clinch head part 80 …… IC part supply device, 93 …… Parts non-detector 100,111 …… Parts Remaining amount detector 110 …… Axial-radial parts supply device 115 …… Parts management table storage unit 116 …… Unit usage status storage unit 117 …… Unit usage status determination unit 119 …… Use unit change designation unit 121 …… Alarm control Department

Claims (1)

[Claims] 1. An electronic component automatic mounting machine comprising a plurality of component supply devices and automatically mounting electronic components supplied from the respective component supply devices on a printed circuit board, wherein the same component is provided as one component supply device. A component that has a single-component supply device that supplies only by itself and a side-by-side component supply device that supplies the same component by a plurality of component supply devices, and that detects that the remaining amount of the component of each component supply device has decreased Remaining amount detecting means, management table storing means for storing a management table indicating a correspondence relationship between types of parts and a component supplying device for supplying the parts, detection result of the remaining amount detecting means for parts and the management table storing means Whether or not the component supply device can be sequentially specified based on the management table stored in, and whether or not another component supply device in the adjacent component supply device can be used. If there is another component supply device that can be used, the designation means for sequentially designating it, the selection means for selecting the component supply device designated by the designation means, and the component remaining amount detection means When it is detected that the quantity has decreased, the alarm means is immediately activated when the single component supply device detects the component supply device, and when the single component supply device detects the component supply device, the last component supply device is selected by the selection means. An electronic component automatic mounting machine, comprising: an alarm control unit that activates the alarm means after is selected.