JP2000156593A - Tray component feed apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a tray component feed apparatus by which an electronic component can be fed continuously without stopping the apparatus when a stacker in which a plurality of trays with mounted electronic components are housed is replaced or when the stacker is replenished with an electronic component, and in which the replacement of a stacker or the replenishing operation of an electronic component can be performed by an operator safely and physically comfortably. SOLUTION: A raising and lowering table 3 is raised and lowered by driving a motor 4 in order to mount a stacker 2A or 2B or in order to take out an electronic component. The position of a changeover table 6 on which the stacker 2A or 2B is mounted and which is moved in the horizontal direction by driving a cylinder 7 is changed over alternately to a first position and a second position. A stacker which is mounted on the raising and lowering table 3 can be changed over alternately to the stacker 2A and the stacker 2B. The stacker 2A and the stacker 2B can be replaced alternately in the order which is reverse to that of their changeover, or an electronic component can be replenished to them.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tray component feeder, and more particularly, to a tray component feeder, which pulls out a tray from a stacker containing a plurality of trays on which electronic components are placed, and transfers the electronic components from the tray to an electronic component mounting apparatus. The present invention relates to a tray component supply device for supplying.

[0002]

2. Description of the Related Art Conventionally, a tray component supply device has been known as an electronic component mounting device for mounting electronic components such as IC components on a circuit board, that is, a device for supplying electronic components to a so-called chip mounter. This tray component supply device clamps a stacker containing a plurality of tray bases on which electronic components are mounted on a tray by a stacker holding portion of a lifting table, mounts the stacker on the lifting table, and rotates a driving motor to rotate a ball screw. The vertically moving table is moved vertically (up and down), the tray base is moved to a drawer position of a predetermined height, pulled out of the stacker, and electronic components are taken out from the tray on the tray base and supplied, and the stacker is held. Since the unit is a one-touch clamp using a lever, the stacker can be easily replaced, and replacement of the stacker or replenishment of electronic components to the stacker can be performed in a short time.

However, it is necessary to stop the conventional tray component supply device in order to replace the stacker or replenish the electronic components, and as a result, a state in which the electronic components cannot be supplied occurs. There is a problem that the operation rate of the entire system is reduced.

The applicant of the present invention has proposed a configuration of a tray component supply apparatus which solves this problem first in Japanese Patent Application No. 10-941.
No. 52 proposed. The configuration will be described with reference to FIG.

In the configuration of the apparatus shown in FIG. 4, two stackers 2A and 2B each accommodating a plurality of tray bases 1 on which electronic components to be supplied are placed on a tray 10 are clamped on two lifting tables 3A and 3B. 8 and can be mounted. The elevating tables 3A, 3B are guided by two guide columns 9A, 9B so as to be able to move up and down, and are connected to the ball screws 5A, 5B. When the ball screws 5A and 5B are driven to rotate by the drive motors 4A and 4B, the lift tables 3A and 3B move up and down.

At the time of supplying electronic components, for example, first, the lifting table 3A is moved upward, and the selected tray base 1 in the stacker 2A is moved to a draw-out position of a predetermined height. The electronic component is taken out from the tray 10 thereon and supplied. At this time, the lifting table 3B is the stacker 2B.
Since the stacker 2B is stopped at the upper standby position which does not interfere with A, replacement of the stacker 2B or replenishment of electronic components for the stacker 2B (performed for each tray) can be performed.

When the supply of the electronic components from the stacker 2A is completed, the elevating table 3A is moved downward.
While the stacker 2A is moved to the lower standby position,
After the elevating table 3B is moved downward and the selected tray base 1 in the stacker 2B is moved to a drawer position of a predetermined height, the tray base 1 is pulled out, and the electronic components are removed from the tray 10 thereon. It is taken out and supplied. At this time, the stacker 2A stopped at the standby position can be replaced or electronic components can be replenished.

In this manner, the supply of the electronic components and the replacement of the stacker or the replenishment of the electronic components can be performed simultaneously, so that the supply of the electronic components can be continuously performed without stopping the apparatus.

[0009]

However, in the apparatus shown in FIG. 4, when the work of replacing the upper stacker 2B is performed, the position where the operator detaches the stacker 2B is difficult to see because the position is high. Giving people anxiety,
There is a problem in that a physical burden is applied to the back, shoulders, arms, and the like. Without replacing the stacker 2B, the stacker 2B
It is the same when electronic components are refilled. In addition, there is a problem that the height of the apparatus is further increased when an attempt is made to increase the number of tray bases that enter the stacker.

An object of the present invention is to provide a tray component supply apparatus of this type which can continuously supply electronic components without stopping the apparatus for replacing a stacker or refilling the stacker with electronic components. It is an object of the present invention to provide a configuration in which an operator can easily and safely carry out replacement of a stacker or replenishment of electronic components into the stacker, and can reduce the height of the apparatus.

[0011]

According to the present invention, the tray is drawn out of a stacker containing a plurality of trays on which electronic components are placed, and the electronic components are removed from the tray. In a tray component supply device for supplying to a mounting device, an elevating means for vertically elevating an elevating table on which the stacker is mounted for supplying electronic components, and two stacker mounting devices arranged at a predetermined distance from each other in a horizontal direction Moving means for moving the switching table provided with the section to the first and second positions in the horizontal direction, and by alternately moving the position of the switching table to the first and second positions, The stacker mounted on the elevating table and supplying the electronic components to the electronic component mounting apparatus can be switched alternately, and in the reverse order of the switching. Serial employing the configuration to allow the replenishment of electronic components for replacement to the stacker of the stacker alternately in the two stacker mounting portion.

According to such a configuration, the stacker mounted on the elevating table and supplying the electronic components to the electronic component mounting apparatus can be switched alternately, and the two stacker mounting sections can be switched in the reverse order of the switching. Since the replacement of the stacker or the replenishment of the electronic components to the stacker can be performed alternately in the above, without stopping the apparatus for the replacement of the stacker or the replenishment of the electronic components to the stacker,
Electronic components can be supplied continuously. Further, the two stacker mounting portions of the switching table are arranged so as to be arranged side by side in the horizontal direction, and the height thereof can be reduced. Therefore, a worker physically replaces the stackers in the two stacker mounting portions or replenishes electronic components to the stackers. The operation can be performed easily and safely, and the height of the apparatus can be relatively low.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. First, the mechanical configuration of the tray component supply device of the embodiment will be described with reference to FIGS. FIG. 1 is a vertical sectional front view of a tray component supply device according to an embodiment, and FIG. 2 is a top view showing the device in a see-through state.

In FIGS. 1 and 2, reference numerals 2A and 2B denote stackers, each of which has a tray base on which a tray 10 on which electronic components 11 to be supplied are arranged, for example, in a matrix. 1 are stored in the stacker 2 (only one is shown in the stacker 2A in FIG. 1 for simplicity of illustration). The tray base 1 can be pulled out from the stackers 2A and 2B.

Reference numeral 3 denotes an elevating table, which is vertically movably guided by two guide columns 9, 9 vertically installed at the center of the apparatus main body 12. Drive motor 4 provided in the upper center
The ball screw 5 is screwed to the ball screw 5 which is driven to rotate. The ball screw 5 is driven by the drive motor 4.
Is rotated so that the lifting table 3 moves up and down in the vertical direction. The lifting table 3 is a stacker 2
It is provided with two clamp cylinders 8 and 8 for clamping and holding A to 2B. The stackers 2A to 2B are mounted, and they are moved up and down for taking out electronic components and switching stackers to be described later.

Reference numeral 6 denotes a switching table, and a stacker mounted on the elevating table 3 is changed from 2A to 2A.
In order to switch to B or vice versa, the stackers 2A and 2B are mounted and moved (slid) in the horizontal direction below a tray pull-out position indicated by the height H2 in FIG. On the upper surface side of the switching table 6, three stands 6a, 6b, 6c for placing and mounting the stackers 2A, 2B thereon are protruded at a predetermined distance from each other in one horizontal direction. The stacker 2A is mounted on the table 6a and the left end of the table 6b in the drawing, and the stacker 2B is mounted on the right end of the table 6b and the table 6c in the drawing. That is, the switching table 6 includes the stackers 2A and 2A.
B can be mounted side by side along one horizontal direction.

The switching table 6 is mounted on a stacker 2A, 2B via a slide rail (not shown).
1 are slidably provided in one of the horizontal directions, which are the directions in which the lines are arranged, and in the opposite direction. When the switching cylinder 7 connected to the horizontal direction is driven, the vertical direction of the lifting table 3 is traversed. It is moved to the first switching position on the right shown by the solid line or the second switching position on the left shown by the two-dot chain line.

When the switching table 6 is at the first switching position, the stacker 2
1 is located in the elevating area of the elevating table 3, and the stacker 2A is mounted between the elevating table 3 and the stacker 2A. 2A can be transferred.
Further, a stacker 2B mounting portion (a right end of the table 6b in FIG.
1) is a position spaced to the right in FIG. 1 with respect to the elevating area of the elevating table 3, so that the stacker 2B can be replaced with a stacker 2B or electronic components can be replenished to the stacker 2B. Become.

When the switching table 6 is at the second switching position, the stacker 2B mounting portion of the switching table 6 is located in the lifting area of the lifting table 3,
The stacker 2B can be transferred between the stacker 2B mounting section and the elevating table 3. Further, the position of the stacker 2A mounting portion of the switching table 6 is located at a position separated to the left side in FIG. Becomes possible.

The portion of the table 6b of the switching table 6 below the broken line 61 is notched. The tables 6a and 6c are formed of sheet metal so as to be hollow, and the side facing the table 6b is open. Therefore, if the lifting table 3 is lowered to the standby position at the predetermined height H1 lower than the broken line 61, even if the switching table 6 moves in the horizontal direction between the first and second switching positions, the table 6a 6c does not hit the elevating table 3.

Although not shown in FIGS. 1 and 2,
In this device, at a predetermined height indicated by reference numeral H2 in FIG.
As shown by an arrow A in FIG. 2, a tray drawer unit that pulls out the tray base 1 from the stackers 2A and 2B mounted on the lifting table 3, that is, pulls out the tray 10 is provided.

The chip mounter is mounted on the electronic component 1 from above the tray 10 pulled out by the tray drawer unit.
1. Adsorb and remove 1.

Next, the configuration of the control system of the present apparatus will be described with reference to FIG.

In FIG. 3, reference numeral 30 denotes a CPU.
The control program stored in the memory 38 is executed to control the entire apparatus. The CPU 30 includes a motor driver 31
To control the drive motor 4 to control the lifting and lowering operation of the lifting table 3. In addition, the driving of the clamp cylinder 8 is controlled via the cylinder driver 32, and the stackers 2A and 2B on the lifting table 3 are clamped and released.
Further, the switching cylinder 7 is switched via the cylinder driver 33.
Of the switching table 6 is controlled. In addition, via the driver 34, the aforementioned stacker 2
The drive of the tray drawer unit 35 for pulling out the tray 10 together with the tray base 1 from A or 2B is controlled.

With respect to the CPU 30, the position (height) of the lifting table 3 detected by detecting means such as a sensor or a switch (not shown), ON / OFF of a stacker clamp,
Signals indicating the position of the switching table 6, the position of the tray 10 drawn from the stackers 2A and 2B, and the like are input via the input / output port 39. The CPU 30 controls the position of the lifting table 3, ON / OFF of the stacker clamp on the lifting table 3, the position of the switching table 6, the position of pulling out the tray 10 from the stacker, and the like based on these signals.

The CPU 30 exchanges commands and data with the chip mounter 40 via the input / output port 39 and the interface 41, and stores the commands and data given from the chip mounter 40 in the memory 38.

Next, the operation of the present apparatus having the above configuration will be described. In the following description, the height of the lift table 3 refers to the height of the upper surface of the lift table 3.

First, as an initial state, the switching table 6 is at the right first switching position shown by the solid line in FIG. 1 (of course, it may be the left second switching position shown by the two-dot chain line). It is assumed that the lifting table 3 is at the standby position at the height H1. From this state, as preparation for component supply, the stackers 2A and 2B are mounted on the above-described stacker 2A mounting section and stacker 2B mounting section of the switching table 6.

A component supply instruction is sent from the chip mounter 40 together with data such as the number of components required for component supply via the interface 41 and the input / output port 39 to the CPU.
When sent to the CPU 30, the CPU 30 controls the driving of the drive motor 4, the switching cylinder 7, the clamp cylinder 8, and the tray drawer unit 35 via the drivers 31, 32, 33, and 34, and supplies the components. Perform the operation.

First, the elevation table 3 is raised to the height of the upper ends of the tables 6a to 6c of the switching table 6 by driving the driving motor 4, and the clamp cylinder 8 is driven there to drive the stacker 2A of the switching table 6 onto the stacker 2A. Is clamped on the elevating table 3 and transferred. Thereafter, the drive motor 4 drives the lift table 3 so that, for example, the height of the uppermost tray base 1 in the stacker 2A is equal to the height of the tray pull-out position indicated by reference numeral H2 in FIG. The uppermost tray base 1 is driven by driving the tray drawer unit 35.
After being pulled out as shown in FIG. 2, the chip mounter 40 sucks and takes out the electronic component 11. When all the electronic components on the tray 10 have been taken out, the elevating table 3 is raised so that the height of the tray base 1 at the second tier from the top becomes the height H2 at the tray pull-out position. Then, pulling out of the tray base 1 and taking out of electronic components are repeated.

As described above, while the elevating table 3 is intermittently moved up by one step height of the tray base 1,
Pull out the tray base 1 of each stage, and place the tray 10
Supplies electronic components from

First, the lifting table is raised so that the height of the lowermost tray base 1 in the stacker 2A becomes the height H2 at the tray pull-out position, and then the tray base 1 is sequentially raised and lowered by one step. While lowering the table 3 intermittently, the tray 10 may be pulled out to supply components.

In this way, the tray 1 in the stacker 2A
When all the zeros are pulled out and the stacker 2A is empty,
The lifting table 3 is lowered to the height of the upper ends of the tables 6a to 6c of the switching table 6, where the clamp of the stacker 2A by the clamp cylinder 8 is released. Thereafter, the lifting table 3 is lowered to the standby position at the height H1. As a result, the empty stacker 2A is transferred to the stacker 2A mounting portion of the switching table 6 and mounted again.

Next, by driving the switching cylinder 7,
The switching table 6 is the second on the left side indicated by the two-dot chain line in FIG.
Is switched to the switching position. Next, the lifting table 3
Is raised to the height of the upper ends of the tables 6a to 6c of the switching table 6, where the clamp cylinder 8 is driven to
The stacker 2B mounted on the stacker 2B mounting portion of the switching table 6 is clamped on the lifting table 3 and transferred. Thereafter, in the same manner as in the above-described case in which components are supplied from the stacker 2A, the lifting table 3 is raised, and the tray withdrawal unit 35 is used to intermittently raise or lower the height of the tray base 1 one step at a time. The tray bases 1 of each stage are pulled out, and electronic components are supplied from the drawn trays 10.

During this time, the stacker 2 of the switching table 6
The A mounting portion is located at a position separated from the elevating area of the elevating table 3 to the left side, and can replace the stacker 2A or replenish electronic components. Here, the height of the stacker 2A mounting portion is lower than the height of the upper stacker 2B mounting portion in the conventional apparatus of FIG. 4 described above, so that when replacing the stacker 2A or replenishing electronic components, the worker must use the stacker 2A. 2
You can see the part where A is attached and detached, and there is no need to turn your body and give your hand, it is physically easy and
You can work safely.

Subsequently, when all the trays 10 in the stacker 2B are pulled out and the stacker 2B becomes empty, the elevating table 3 is lowered to the height of the upper ends of the tables 6a to 6c of the switching table 6, and the clamp cylinder is moved there. 8, the clamp of the stacker 2B is released. Thereafter, the lifting table 3 is lowered to the standby position at the height H1.
As a result, the empty stacker 2B is transferred to the stacker 2B mounting section of the switching table 6 and mounted again.

Next, by driving the switching cylinder 7,
The switching table 6 is moved to the right first switching position shown by the solid line in FIG. Subsequently, the lifting table 3 is raised to the height of the upper ends of the tables 6a to 6c of the switching table 6, whereupon the clamp cylinder 8 is driven to change the stacker 2A (replacement or replacement) mounted on the stacker 2A mounting portion of the switching table 6. The stacker (supplemented with electronic components) is clamped on the elevating table 3 and transferred. Thereafter, as in the previous case, the electronic components are supplied from the stacker 2A by the raising and lowering operation of the raising and lowering table 3 and the operation of the tray drawer unit 35.

During this time, the stacker 2 of the switching table 6
The B mounting portion is located at a position separated to the right from the elevating area of the elevating table 3, and can replace the stacker 2B or replenish electronic components. The stacker 2A described above
As in the case of (1), it is of course possible to safely and physically replace the stacker 2B or replenish the electronic parts.

By repeating the above operation, the position of the switching table 6 is alternately switched to the first and second positions, thereby alternately switching the stackers mounted on the elevating table 3 to the stacker 2A mounting portion of the table 6. It is possible to switch between the mounted stacker 2A and the stacker 2B mounted on the stacker 2B mounting section to supply electronic components, and to mount the stacker 2A mounting section and the stacker 2B of the switching table 6 in the reverse order to the above-described switching. The replacement of the stacker or the replenishment of electronic components to the stacker can be performed alternately in the section.

Therefore, according to the present embodiment, it is possible to continuously supply the electronic components without stopping the apparatus for replacing the stackers 2A and 2B or refilling the stackers 2A and 2B. Moreover, as described above, the replacement of the stackers 2A and 2B or the stackers 2A and 2B
The operator can physically and safely carry out the work of replenishing electronic components for 2B. In addition, FIG.
As is clear from the comparison with the configuration of the above, the height of the device can be reduced.

[0041]

As is apparent from the above description, according to the present invention, the tray is pulled out from the stacker storing a plurality of trays on which electronic components are placed, and the electronic components are transferred from the tray to the electronic component mounting apparatus. In the tray component supply device for supplying, a switching table having two stacker mounting portions arranged at a predetermined distance from each other in the horizontal direction is moved in the horizontal direction, and the positions are alternately shifted to the first and second positions. By moving the stacker, it is possible to alternately switch the stacker that supplies the electronic component to the electronic component mounting apparatus by mounting the electronic component on an elevating table that moves up and down for supplying the electronic component, and in the reverse order of the switching. Since the stacker mounting section can alternately replace the stacker or replenish electronic components to the stacker, the stacker can be replaced or replaced. The electronic components can be continuously supplied without stopping the apparatus for refilling the electronic components into the stacker, and the operator can easily replace the stacker or refill the stacker with the electronic components physically. In addition, there can be obtained an excellent effect that the operation can be performed safely and the height of the device can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic longitudinal sectional front view showing a configuration of a tray component supply device according to an embodiment of the present invention.

FIG. 2 is a schematic top view showing the tray component supply device in a see-through state.

FIG. 3 is a block diagram showing a configuration of a control system of the apparatus.

FIG. 4 is a partially cutaway front view showing a configuration of a conventional tray component supply device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tray base 2A, 2B Stacker 3 Elevating table 4 Drive motor 5 Ball screw 6 Switching table 7 Switching cylinder 8 Clamp cylinder 9 Guide support 10 Tray 11 Electronic component 12 Device body 30 CPU 35 Tray draw-out unit 38 Memory 40 Chip mounter

Claims (1)

[Claims] 1. A tray component supply device for pulling out a tray from a stacker containing a plurality of trays on which electronic components are placed and supplying electronic components from the tray to an electronic component mounting apparatus, wherein a lifting table for mounting the stacker Lifting and lowering means for vertically raising and lowering the electronic components to supply electronic components; and a switching table having two stacker mounting portions arranged at a predetermined distance from each other in the horizontal direction at first and second positions in the horizontal direction. Moving means for moving the switching table alternately to the first and second positions, whereby the stacker is mounted on the elevating table and supplies an electronic component to an electronic component mounting apparatus. Can be switched alternately, and the exchange of the stackers or the replacement of the stackers in the two stacker mounting portions is performed in the reverse order of the switching. A tray component supply device wherein electronic components can be supplied to a stacker.