JP3138517B2 - Component supply device and component mounting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component supply device,
For example, the present invention relates to a component supply device that holds an electronic component at a predetermined position, transfers the component to a component mounting position, and supplies the component to a component mounting device that mounts the component on a component mounting target.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS. 10 and 11, a device of this type includes a component supply unit a for sequentially sending out a plurality of accommodated components, and a component supply unit a at a predetermined component supply position. And a driving cam lever mechanism b.

[0003] The component supply unit a is loaded with a carrier tape containing a large number of components, and each time the delivery lever e is pressed, the tape is delivered by a pitch corresponding to the pushing amount, and the components are supplied one by one in a predetermined manner. To the delivery position f, and is used for suction by a suction head j for mounting components of the component mounting apparatus.

The cam / lever mechanism b transmits the movement of the bell crank d driven by the cam c to the pushing lever g by the rod h, and the roller i at the tip is moved by the swing of the pushing lever g. It comes into contact with the delivery lever e and pushes it by a fixed amount to deliver the component.

[0005]

However, if the driving of the component supply unit a is uniformly performed by a single cam lever mechanism b as in the prior art, the swing stroke and timing of the roller i, in particular, the delivery lever The time interval for pushing e becomes constant.

For this reason, the tape feeding speed and pitch cannot be changed depending on the type of components contained in the tape, and the component supply unit a must be supplied to supply different types of components in a predetermined order. When a plurality of components are selectively switched to the component supply position and driven, the time limit for component delivery differs depending on the presence or absence of switching, and the speed may be switched to respond to this. Can not.

Therefore, the speed and time must be set so as to meet the conditions in any case.
It is a problem in speeding up.

Accordingly, the present invention provides a method in which a plurality of driving means which are driven in different operation states can be selectively driven.
It is an object of the present invention to provide a component supply device capable of solving the above-described conventional problems and a component mounting device including the component supply device .

[0009]

[MEANS FOR SOLVING THE PROBLEMS] To achieve the above object
The component supply device according to the first invention of the present application is a component supply device that accommodates a plurality of components and sequentially sends the components to a predetermined component removal position .
Multiple installations to switch parts to supply during operation
Only, and individually driving said supply means drive means, said
Select only one drive means for the supply means.
Switching means to operate and usually separate from said supply means
However, only when power is transmitted,
When any one of the plurality of driving means is selected.
Acting on the part supply means at one predetermined position
Transmission means for transmitting power, wherein the component supply means
Is selected when any one of the plurality of driving means is selected.
Transmitted hand receiving power of transmission means at one predetermined position
It is characterized in that it comprises a stage.

[0010] Also, the component supply device of the second invention of the present application is:
Component supply means selectively moves to a specified component supply position
The switching means is controlled based on whether the component supply means has moved.
The driving means is switched based on the
You . Further, the component supply device of the third invention of the present application is a switching device.
The stage is accommodated by the component supply means at the component supply position
The drive means is switched according to the type of parts.
Things .

[0011] Also, the component mounting apparatus of the fourth invention of the present application,
The component supply device according to the first invention of the present application and the component supply device
Component holding means for holding components sent from the
The product holding means moves and positions the circuit board on which the components are mounted.
And a positioning table,
There is .

[0012]

According to the first aspect of the present invention, according to the above configuration,
Common to all component supply means used.
Power of the different driving means depending on the
The parts supply means from the drive means.
Can be separated and separated from the driving means.
Component supply means also depends on the selected drive means.
Power receiving means for receiving power at one predetermined position
Different components with different components
Operate in different operating states by receiving power from moving means
Can be . In addition, the worker mounts the component supply means
You can set up the production simply by setting or replacing the device,
In addition, the component supply means receives power from any drive means.
However, since it has a common structure,
The worker sets the component mounting device without
The work load can be reduced and work errors can be prevented.
Can be stopped .

According to a second aspect of the present invention,
According to the configuration, the component supply means is positioned at a predetermined component supply position.
Is selectively moved, and the switching means moves the part supply means.
Since the drive means is switched based on the presence or absence of movement, parts supply
Measures are taken depending on whether the movement takes place or not.
It can be driven in the same operating state and send out parts,
The tact of supplying parts can be shortened .

According to a third aspect of the present invention, the aforementioned
According to the configuration, the switching unit switches the driving unit according to the type of the component housed in the component supply unit at the component supply position, so that the switching unit switches the component supply unit to an operation state according to the type of the component supplied by the component supply unit. It can be driven to deliver parts.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A component supply apparatus as an embodiment of the present invention shown in FIGS. 1 to 9 will be described below.

As shown in FIG. 1, the apparatus of this embodiment is incorporated as a component supply section 1 of a component supply apparatus for automatically mounting electronic components on a circuit board, and the component mounting apparatus is automatically supplied from the component supply section 1. Circuit board 2 on which electronic components are mounted
A positioning table 3 for positioning the electronic components in the X and Y2 directions orthogonal to each other, and an electronic component automatically supplied from the component supply unit 1 at a component holding position and holding the electronic component at a predetermined position on the circuit board 2 to be positioned. And a component mounting head 4 to be transported and mounted.

The component supply unit 1 is loaded with a carrier tape 61 (FIG. 2) in which electronic components are arranged and stored at a constant pitch.
A plurality of component supply units 5 for automatically supplying the electronic components in the carrier tape 61 one by one are provided.
The component supply unit 5 for supplying the component to be mounted by the movement along is selectively switched to the component holding position and moved to supply the required component to the component holding position.

The positioning table 3 positions the circuit board 2, which is carried in and out by a transfer conveyor (not shown), at a predetermined position while components are mounted, and is used for automatic component mounting.

The component mounting head 4 has a plurality of suction nozzles 7.
The suction nozzle 7 is supported and supported on the rotary table 8 shown in FIG. 1 , and is repeatedly moved while drawing a circular orbit between the component holding position and the component mounting position by intermittent rotation of the rotary table 8 at the component suction position. The supplied electronic component is sucked and held by the suction nozzle 7, and when the electronic component is transferred to the component mounting position, the suction holding is released and the electronic component that has moved to a predetermined position on the circuit board 2 is mounted.

After the component is mounted, the suction nozzle 7 is returned to the component holding position and used for the next component mounting.

As shown in FIG. 2, the component supply unit 5 includes an electronic component reel 6 on which a carrier tape 61 is wound.
The carrier tape 61 is pulled out of the mounted electronic component reel 62, and the top tape 61a covering the electronic component accommodating recess is peeled off and the leading end portion is sent out. The top tape 61a, which has been inserted into the stripping section 64 and is peeled off, is wound around a top tape take-up reel 65, so that components can be supplied.

On the upper surface of the component delivery section 64, there is opened a component take-out port 66 in which the portion of the carrier tape 61 from which the top tape 61a has been peeled off opens.
Is normally closed by a shutter 67, and when a component feed lever 71 pivotally mounted coaxially with the top tape take-up reel 65 is pressed down by a roller 72, the shutter 67 opens and the carrier tape 61 in the component take-out opening 66 faces. The electronic component is sucked and held by the suction nozzle 7 descending, and can be taken out by raising the suction nozzle 7.

When the roller 72 starts to rise, the delivery lever 71 moves back to feed the carrier tape 61 by one pitch, and sends the next electronic component to the position of the component take-out port 66. At the same time, the top tape 61a is wound on the top tape take-up reel 65 by a length corresponding to the one pitch.

FIG. 3, FIG. 4, FIG.
Is driven by a cam lever mechanism 81 shown in FIG.

The cam lever mechanism 81 includes cams 83 and 84 mounted on a cam shaft 82, bell crank levers 85 and 86 provided opposite the cams 83 and 84,
Each of the cams 83 and 84 is constituted by a push lever 89 connected to one end through cylinder devices 87 and 88, and the roller 72 is provided at the other end of the push lever 89.

A spring 91 is acted on the pushing lever 89,
Cam followers 92 on bell crank levers 85, 86,
Push lever 8 in the direction of pressing the cam 93 against the cams 83 and 84.
9 is energized.

The cylinder devices 87, 88 extend when pressurized air is supplied from the air ports 87a, 88a, and contract when the air ports 87a, 88a are opened.

Therefore, when the cylinder device 87 is extended and the cylinder device 88 is contracted, the cylinder device 87
The bell crank lever 85 connected to the cam follower 92 presses its own cam follower 92 against the cam 83, so that the cam follower 9
2 can be transmitted to the push lever 89, and the bell crank lever 86 connected to the cylinder device 88 pulls the cam follower 93 away from the cam 84, and the movement of the cam 84 is not transmitted to the push lever 89. To do.

Conversely, when the cylinder device 87 is contracted to extend the cylinder device 88, the movement of the cam 83 is not transmitted to the push lever 89, and the movement of the cam 84 is not transmitted to the push lever 89.
Can be transmitted to

Therefore, by selecting which one of the cylinder devices 87 and 88 is extended and which is contracted,
Which of the cams 83 and 84 is transmitted to the push lever 89 to drive the component supply unit 5 can be freely selected.

Therefore, the cams 83 and 84 obtain an appropriate operation state of the component supply unit 5 according to the presence or absence of switching of the component supply unit 5 and the type of electronic component supplied to the component holding position by the component supply unit 5. With such a shape, parts can always be supplied efficiently and in an optimal state according to the type.

FIG. 5 shows a time chart of an operation required when the component supply unit 5 is switched, and FIG. 6 shows a time chart of an operation which can be taken when the component supply unit 5 is not switched.

When the component supply unit 5 is moved, as shown in FIG. 5, the roller 72 at the tip of the push lever 89 of the cam lever mechanism 81 is made to stand by at the raised position. 72 is started to descend. When the roller 72 reaches the bottom dead center, the component delivered from the suction nozzle 7 of the component mounting head 4 at the bottom dead center is sucked and held by the suction nozzle 7.

When the component is sucked and held, the roller 72 is raised to complete one cycle of operation.

On the other hand, when there is no switching movement of the component supply unit 5, as shown in FIG.
The roller 72 at the end of the push lever 89 can be started to descend without waiting time for the movement of the component supply unit 5 as described above, and the time required for one cycle of operation is the same as that shown in FIG. As shown by Y in FIG.

Therefore, the required takt time can be shortened and the working efficiency can be improved as compared with the conventional case in which the above-mentioned operation is performed while keeping the above X.

A description will be given of a case where an optimum component is supplied depending on the type of the component to be supplied. For example, in the case where only the time of the suction bottom dead center of the suction nozzle 7 needs to be changed, one cam satisfies the operation state in which the bottom dead center is short as shown in FIG. On the other hand, the rotational speed of the cam must be reduced, and the entire operation time is unnecessarily long.

When the two cams 83 and 84 are selectively used as in the embodiment of the present invention , by adopting a cam shape in which only the bottom dead center portion is elongated, as shown in FIG. It is possible to operate with the point time only as long as necessary, eliminating the wasteful time increase of the whole,
The tact time can be significantly reduced as compared with the comparative example shown in FIG.

In short, in this embodiment, the optimum supply operation according to the parts to be supplied can be designed, and this operation can be performed stably with the minimum necessary tact time.

[0040]

According to the present invention, all parts used are
Different drive by common transmission means for product supply means
Since the power of the means is transmitted at one predetermined position,
The supply means can be separated from the drive means,
The component supply means separated from the drive means
At a predetermined position that is not changed by the driving means
Common structure due to the power receiving means
Receiving power from different driving means
It can be operated in different operating states . Also work
Set or replace the component supply means on the component mounting device.
Can be set up for production, and what parts supply means
Even if it receives the power of the driving means, it has a common structure
No matter which drive method is selected, the worker is aware of it.
Work without having to set it in the component mounting device.
The burden can be reduced and work errors can be prevented .

Further , the component supply means is provided at a predetermined component supply position.
Is selectively moved with respect to the
Since the driving means is switched based on whether or not the step has moved,
When the product supply means is moved or not
It can be driven in the operating state according to
It is possible to shorten the tact of supplying parts .

Further, switching means, so switch the drive means in accordance with the type of parts component supply unit at the component supply position is accommodated, the operating state of the component supply unit which depending on the type of component supplies , And the parts are sent out, so that the optimal supply according to the kind of the parts can be achieved without wasting time.

[Brief description of the drawings]

FIG. 1 is a perspective view schematically showing a component mounting device having a component supply device as one embodiment to which the present invention is applied.

FIG. 2 is a perspective view sectional view showing a component supply unit.

FIG. 3 is a side view illustrating a relationship between a component supply unit and a cam lever mechanism that drives the component supply unit.

FIG. 4 is a front view of a cam lever mechanism.

FIG. 5 is a time chart showing an operation example when the component supply unit is switched and moved.

FIG. 6 is a time chart illustrating an operation example when the component supply unit is not switched and moved.

FIG. 7 is a time chart showing an operation example in a case where a component type can be handled by a short bottom dead center time of a suction nozzle.

FIG. 8 is a time chart showing a comparative example in which one cam satisfies an operation when a component type can be handled only by a long bottom dead center time of a suction nozzle.

FIG. 9 is a time chart according to the present embodiment in which an operation when a component type can be handled only by a long bottom dead center time of a suction nozzle is selected by selecting another cam.

FIG. 10 is a side view showing a relationship between a component supply unit of a conventional component supply device and a cam lever mechanism.

FIG. 11 is a front view of the apparatus of FIG. 10;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Component supply part 5 Component supply unit 6 Moving table 81 Cam lever mechanism 83, 84 Cam 87, 88 Cylinder device

──────────────────────────────────────────────────の Continued on the front page (72) Inventor Takahiro Yonezawa 1006 Kazuma Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (56) References JP-A-63-178592 (JP, A) JP-A-60-213437 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) H05K 13/00-13 / 04

Claims (9)

(57) [Claims] 1. A component supply means for accommodating a plurality of components and sequentially feeding the components to a predetermined component take-out position, and a component supply device which operates the components in different operation states such as a component feed speed and a pitch.
A plurality is provided for switching to supply, and the supply is individually performed.
A driving means capable of driving the means, and each of the driving means is selectively provided as one with respect to the supply means.
Switching means for working only, and normally separate from the supply means, but for transmitting power
Only when the plurality of driving means
When any of the steps is selected,
Transmission means for transmitting power by acting at one predetermined position
With the door, the component supply means, any of the plurality of drive means selected
The power of the transmission means is kept at one predetermined position
Parts provided with receiving means for receiving parts
Equipment . 2. The apparatus according to claim 1, wherein the component supply means includes any of a plurality of drive means.
When this is selected, a single
The delivery lever receives the power to send out parts,
The reaching means, when any one of the plurality of driving means is selected,
A single push lever operates the delivery lever of the component supply means.
The component supply device according to claim 1, wherein the component is pressed to transmit power . And a plurality of driving means for operating the push lever.
Speed and timing vary depending on the driving means.
3. The component supply device according to claim 2 , wherein the component supply device is driven . 4. A plurality of drive means, each having a cam mounted on a cam shaft, and a switching means having a plurality of bell cranks, one of which has a cam follower abutting on the cam and the other of which is connected to a cylinder device. A plurality of bell crank levers are respectively connected to a single push lever via the cylinder device, and each of the plurality of cams is operated by driving the cylinder device to operate the one of the plurality of cams. The component supply device according to claim 2, wherein switching is performed so as to transmit the force to the push lever. 5. is extended only cylinder device corresponding to the cam for transmitting power by said cylinder device other than to shrink, only cam that transmits power to the cam follower abuts the other cam follower 5. The component supply device according to claim 4, wherein the component supply device is separated. 6. The component supply apparatus according to claim 4, wherein the plurality of driving means include a plurality of cams having shapes different in speed and timing at which the push lever operates. 7. The apparatus according to claim 1, wherein said component supply means is selectively moved to a predetermined component supply position, and said switching means switches said driving means based on whether or not said component supply means has moved. 2. The component supply device according to claim 1. 8. The component supply device according to claim 1, wherein the switching unit switches the driving unit in accordance with the type of the component accommodated in the component supply unit at the component supply position. 9. A component supply device according to claim 1, a component holding means for holding a component sent from said component supply device, and said component holding device mounting a component. A component mounting device comprising a positioning table for moving and positioning a circuit board.