JPH09214180A - Electronic component supply equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To speed up the taking-out work of a tray, by reducing the friction between a stacker and a tray base, and making the isolation and approach movement of a Y carriage to a tray stacker unnecessary. SOLUTION: Each edge part 282 of each notch 281 of each tray base 28 accommodated in a stacker is arranged in order in the stacking direction of the tray bases 28. The top end portion 310 of a Y carriage moving in the arrow (b) direction, or bearings 312a and 312b, stop in the position keeping a specified interval from the edge part 282 of the notch 281, in the state that the top end portion 310 of the Y carriage is inserted into the notch 281, and displacement of the bearings 312a and 312b does not exist. In the state that the top end portion 310 is inserted into the notch 281, the bearings 312a and 312b displace in the opposite direction wherein the same displacement amounts in the direction of both side parts 282a, 282b of the edge part 282 of the notch 281 are mutually isolated, and engage with both end portions 282a, 282b of the edge part 282, respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic component supply device for supplying an electronic component such as an IC chip to an electronic component mounting device such as a chip mounter.

[0002]

2. Description of the Related Art A conventional electronic component supply apparatus is disclosed, for example, in Japanese Patent Laid-Open No. 7-38287 and Japanese Patent Publication No. 7-67028.

To explain the outline of a conventional electronic component supply device, first, the conventional electronic component supply device includes a tray on which electronic components are arranged and mounted in a matrix. This tray is a tray support member (tray base)
Stacked on the tray by stacking multiple sheets
Is stored inside. The stacker is installed in the main body of the electronic component supply device, and a stacker lifting device for moving the stacker in the stacking direction of the trays, that is, the vertical up and down direction to bring a desired tray to a predetermined position is provided. There is.
The tray at this predetermined position is taken out by engaging a predetermined engaging member with the tray base and then pulling out the tray base from the stacker as it is, and the tray provided with the head provided in the main body of the electronic component supply device is pulled out. Move over the desired electronic components in. This head is provided with a predetermined nozzle, and a desired electronic component is adsorbed and taken out by this nozzle and placed on a predetermined shuttle. Then, this electronic component is carried on the shuttle and conveyed to the electronic component pick position of the electronic component mounting apparatus. This shuttle is provided with a suction pad that sucks electronic components by suction of air and holds them on the shuttle.

In the stacker, the tray base to be housed is provided with bearings which come into contact with the tray base from both sides thereof, thereby guiding the tray base when it is pulled out.

Further, the tray take-out device has an engaging member that engages with the tray base in the stacker and pulls out the tray base. By pulling out the tray base in this engaged state, I was taking it out. In this tray pulling out work, if the above-mentioned engaging member is overhanging to the stacker side, it becomes an obstacle to the movement of the stacker in the tray stacking direction. Therefore, the tray pull-out member is once retracted from the stacker, then the stacker is moved in the tray stacking direction, the desired tray is moved to a predetermined tray take-out position, and then the engaging member is moved to the stacker side again. .

[0006]

However, the above prior art has the following problems.

That is, if both sides of the tray base are guided by bearings, the centering accuracy may be poor due to the gap between the bearing and the tray base.

Therefore, an object of the present invention is to improve the centering accuracy in the work of pulling out the tray support member from the tray storage portion.

Another problem is that the engaging member for pulling out the tray is retracted before the stacker is moved in the stacking direction of the stacker, and after the movement is completed, the engaging member is again moved to the stacker side to move the tray base. If the tray is pulled out, the time required for separating and moving the engaging member with respect to the stacker is wasted, and again, it is impossible to speed up the tray take-out operation.

Therefore, another object of the present invention is to take out the tray by removing the need for separating and moving the member for pulling out the tray supporting member from the tray accommodating portion in the operation of pulling out the tray supporting member from the tray accommodating portion. This is to speed up the work.

Further, another object of the present invention is to make it possible to detect whether or not the engaging member that engages with and pulls out the tray supporting member is certainly engaged with the tray supporting member in the tray removing operation. Especially.

[0012]

Means for solving the above-mentioned problems will be described by adding corresponding members and reference numerals in parentheses in the embodiments of the invention described later.

According to the first aspect of the present invention, a tray (26) on which a plurality of electronic components (100) are placed side by side, and a tray support member (tray base 2) on which the trays are placed.
8), a tray storage part (stacker 27) in which a plurality of tray support members on which a plurality of trays are respectively placed are stacked and stored, and the tray storage part is moved in the stacking direction to a desired position. A tray moving unit (stacker vertical transport unit 2) that moves the tray support member on which the tray is placed to a predetermined take-out position, and a tray take-out unit (the tray pull-out unit 3) that draws out the tray support member from the take-out position. ), An engaged portion (notch 281) is formed in the tray support member, and the tray take-out portion inserts and separates the tray support member from the tray storage portion. (Y carriage 31) and a pair of engaging portions (bearings 312) provided on the base body portion.
a, 312b), the pair of engaging parts move in opposite directions in the inserted state of the base part to engage with the engaged part, and the base part remains in this engaged state. This is an electronic component supply device (1) for pulling out the tray support member by separating.

According to the electronic component supply apparatus of the first aspect, the pair of engaging portions are provided in the base portion for inserting and separating the tray supporting member into the tray accommodating portion, and the pair of engaging portions are provided. When the base portion is inserted, the joint portion moves in opposite directions to engage with the engaged portion. Therefore, the tray support member is accommodated in the tray by the separating operation of the base portion while being centered by the pair of engaging portions. It is also possible to reduce the friction between the tray storage portion and the tray support member by being taken out from the portion.

Therefore, according to the electronic component supplying apparatus of the first aspect, the centering accuracy of the tray supporting member can be improved, and the tray taking-out operation can be speeded up by reducing the friction.

According to a second aspect of the present invention, the engaged portion of each tray supporting member housed in the tray housing portion is
Aligned in the stacking direction of the tray support member, the base portion and the engaging portion are separated from the edge portion of the engaged portion when the base portion is in the inserted state and the engaging portion is not displaced. The electronic component supply device according to claim 1, wherein the electronic component supply device is located at predetermined intervals.

According to another aspect of the electronic component supply device of the present invention, the base portion and the engaging portion are located at a predetermined distance from the edge portion of the engaged portion, and moreover, the edge of the engaged portion. When the parts are aligned in the stacking direction of the tray storage member, even if the tray storage part is moved in the stacking direction of the tray support part while the base part is inserted in the engaged part, Since the joint portion does not hinder the movement of the tray housing portion, the tray support member of the conventional base portion (and the engaging portion [corresponding to the member for pulling out the tray in the above description of the prior art]). It is possible to pull out the trays one after another without moving away from and moving again.

Therefore, according to the electronic component supply apparatus of the second aspect, the same action and effect as those of the electronic component supply apparatus of the first aspect can be obtained, and in the work of pulling out the tray supporting member from the tray storing section. Further, it is not necessary to separate and move the member for pulling out the tray with respect to the tray housing portion, and it is possible to speed up the tray removing operation.

According to a third aspect of the present invention, a detection is performed which detects a state in which the pair of engaging portions are displaced by a predetermined displacement amount and a state in which the displacement is performed by a displacement amount larger than the predetermined displacement amount. The electronic component supply device according to claim 1 or 2, further comprising a section (sensors 317a and 317b).

According to the third aspect of the present invention, there is provided the electronic component supply device, wherein the pair of engaging portions are displaced by a predetermined displacement amount while the engaged portion is engaged with the pair of engaging portions. If so, the state in which the displacement amount is larger than the displacement amount is a state in which the pair of engaging portions cannot engage with each other while trying to engage with the engaged portion.

Therefore, according to the electronic component supply device of the third aspect, the same action and effect as those of the electronic component supply device of the first aspect or the second aspect can be obtained, and these states can be detected. Thus, it is possible to detect whether or not the engaging portion and the engaged portion are surely engaged with each other in the tray removing operation.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, the structure will be described.

FIG. 1 is a front view of an electronic component supply apparatus 1 according to an embodiment of the present invention, and FIG. 2 is a left side view of the same.

As shown in FIGS. 1 and 2, the electronic component supply device 1 includes a stacker vertical transport unit 2, a tray pull-out unit 3, an electronic component take-out unit 4, and an electronic component transport unit 5. .

As shown in FIGS. 3 to 5, the stacker vertical transport unit 2 is provided with a ball screw 22 whose vertical direction is the length direction rotated by the drive of the motor 21. Due to the rotation of the ball screw, the elevating table 25 is guided by the guide rails 24 and 24 to ascend and descend. Reference numeral 26 denotes a tray, and a plurality of electronic components 100 such as IC chips 100 ...
Are arranged in a matrix and placed. Tray 26
Are placed on the tray bases 28, and are stacked and stored in the stacker 27 in the vertical direction. A notch 281 is formed at the edge of the tray base 28 on the tray take-out side. The stacker 27 is fixed on the elevating table 25 by a predetermined mechanism and moves up and down (in the z-axis direction).
The tray 26 on which desired electronic components are placed is carried to a predetermined height position.

The tray pull-out unit 3 is provided with a Y carriage 31, and the Y carriage 31 is driven by a motor 32 by a displacement amount required in the directions a and b as shown by the arrow (x-axis direction (see FIG. 1)). Moving.

6 to 8 are plan views illustrating the Y carriage 31.

As shown in the figure, the notch 281 is formed on the side edge of the tray base 28 on the take-out side as described above.

The tip portion 310 of the Y carriage 31 is inserted into the cutout portion 281 of the tray base 28 housed in the stacker 27 by moving in the direction of the arrow b.
On the contrary, they are separated by moving in the direction of arrow a. In the state in which the tip portion 310 of the Y carriage 31 is inserted into the notch 281, the tip portion 310 of the Y carriage 31 is in the direction of both sides 282a and 282b of the edge portion 282 of this notch (the direction of arrow g (see FIG. 6)). ) Is provided with a pair of release plates 311a and 311b which are slidable in parallel in the g direction. A pair of bearings 312a and 312b are provided at an edge of the release plate 311a opposite to the release plate 311b and an edge of the release plate 311b opposite to the release plate 311a, respectively. The release plates 311a and 311b respectively have a pair of left and right symmetrical long holes 31.
3a and 313b are formed. The long hole 313a is a hole whose length direction is linear and gradually separates from the release plate 311b side from the arrow b side toward the arrow a side. Similarly, the elongated hole 313b is a hole whose length direction is linear and gradually separates from the release plate 311a side from the arrow b side toward the arrow a side.

Reference numeral 314 is an air cylinder, and a cylinder plate 315 is provided at the tip end portion 310 of the cylinder rod 314a. A pair of bearings 316a and 316b are provided on both sides of the cylinder plate. The bearing 316a is engaged with the elongated hole 313a, and the bearing 316b is engaged with the elongated hole 313b.
By driving the cylinder 314, the bearings 316 a, 3
When 16b moves in the direction of the arrow b, the bearings 312a and 312b move the edge portion 282 of the cutout 281 with the tip 310 of the Y carriage 31 inserted in the cutout 281.
Of the edge portions 282a and 282b in the direction of the edge portions 282a and 282b.
The two side portions 282a and 282b are engaged with each other (see FIG. 7). When the Y carriage 31 moves away from the stacker 27 (in the direction indicated by the arrow a) in this engaged state, the tray base 28 can be pulled out by a necessary displacement amount.

The edge portions 282 of the notches 281 of the tray bases 28 stored in the stacker 27 are
The tray bases 28 are arranged in the stacking direction (see FIGS. 3 to 5). The tip portion 310 of the Y carriage 31 that moves in the direction of the arrow b, and thus the bearings 312a and 312b.
Is a state where the tip portion 310 of the Y carriage 31 is inserted into the notch 281, and the bearings 312a and 312b are not displaced (the state shown in FIG. 6).
It stops at a position spaced from the edge portion 282 of No. 1 by a predetermined distance.

The cylinder 314 has sensors 317a and 31a.
7b is provided. The cylinder rod 314a is magnetized at a predetermined position, and the axial movement of the rod 314a causes the sensors 317a and 317b to turn on and off.
I do. The state in which the bearings 312a and 312b are closest to each other, that is, the bearings 312a and 312b
b is not displaced, and both side portions 282a of the edge portion 282,
In a state where the sensor 317a is not engaged with the sensor 282b (state shown in FIG. 6), the sensor 317a is ON and the sensor 317b is OFF. The bearings 312a and 312b are displaced by the same predetermined displacement amount so as to be separated from each other, that is, the bearings 312a and 312b are engaged with both side portions 282a and 282b of the edge portion 282 (shown in FIG. 7). State), the sensor 317a is OFF and the sensor 317a is OFF.
b is ON. The bearings 312a, 312b are displaced by a displacement amount larger than the predetermined displacement amount shown in FIG. 7, so that the bearings 312a, 312b are separated from each other, that is, the bearings 312a, 312b are arranged on both side portions 282a of the edge portion 282.
When it is not possible to engage with 282b (state shown in FIG. 8), both sensors 317a and 317b are OFF.

The electronic component take-out unit 4 is provided with a head drive section 41. Also, the pulleys 42, 43 and 45
The drive belt 44 that is wound around
A head drive unit 41 is fixed to the head drive unit 41, and the head drive unit 41 is driven by a belt 44 using a motor 49 as a drive source, so that the head drive unit 41 has a desired displacement amount in directions c and d (y-axis direction [see FIG. 2]). Just move. A head 46 is provided on the lower end side of the head drive unit 41. The desired electronic component 100 of the tray 26, which is pulled out to the predetermined position by the movement of the head drive unit 41 in the arrow c direction or the arrow d direction, is placed and the electronic components 100 ... The head 46 moves over the row and stops on the desired electronic component 100. The head 46 moves up and down by driving the air cylinder 47. The head 46 is provided with a predetermined nozzle, and the head 46 descends on the desired electronic component 100, sucks and holds the desired electronic component 100, and then ascends, and the head drive unit 41 indicates the arrow d. Move in the direction and stop at a predetermined position.

The electronic component carrying unit 5 is provided with a carrying path 51, and a shuttle 53 is moved on the carrying path 51 by a predetermined mechanism using a motor 52 as a driving source in the directions e and f (see FIG.
Refer to) to drive. The desired electronic component 100 is held, moved in the direction of the arrow d, and stopped at the above-mentioned predetermined position, the head drive unit 41 descends onto the shuttle 53 and delivers the electronic component 100 to the shuttle 53. The shuttle 53 is provided with a predetermined suction pad to suck and hold the electronic component 100 on the shuttle 53 by sucking air. After this,
The shuttle 53 moves in the arrow e direction, and the electronic component 100 is conveyed to a predetermined pick position of the electronic component of a predetermined electronic component mounting apparatus.

Each part of the electronic component supply apparatus 1 having the above-described configuration is driven by a predetermined control system including a storage device that stores coordinate data of the position of the electronic component 100 conveyed to the electronic component mounting apparatus side. To be done.

Next, the operation will be described.

FIG. 9 is a diagram for explaining the movement of the electronic component until the electronic component 100 is taken out and conveyed. In the example shown in the figure, tray bases 28a, 28b, 28c, ... On which trays 26 in which electronic components 100 ... Are arranged in a matrix of 4 rows and 6 columns are placed are stacked. Below, the tray 26a on the tray base 28a
Electronic component 100a placed at the position of row 1 column 1 of
An example will be described in which the device is taken out and conveyed to the electronic component mounting apparatus.

First, the tip portion 310 of the Y-carriage 31 is moved in the direction of the arrow b, and is previously inserted into the notches 281 of the tray bases 28 as shown in FIG. In this way, the state in which the bearings 312a and 312b are not displaced in the arrow g direction is detected by the sensor 317a being ON and the sensor 317b being OFF.

Next, the electronic component 100a to be taken out and conveyed.
Is at the position of symbol l, the stacker vertical transport unit 2 lowers the stacker 27 to move the tray 26a to a predetermined height of the tray withdrawal position. The position of the electronic component 100a at this time is indicated by a symbol m. Thus, even if the stacker 27 is moved up and down in advance in the notches 281 of the tray bases 28, which are inserted as shown in FIG. The edge portions 282 of the notches 281 are aligned in the stacking direction of the tray bases 28 (see FIGS. 3 to 5), and the tip end portion 310 of the Y carriage 31, and thus the bearings 312a and 312b, are provided in the notches 281. In the inserted state and without any displacement of the bearings 312a and 312b, the bearings 312a and 312b are stopped at a position spaced from the edge portion 282 of the notch 281 by a predetermined distance (see FIG. 6). (And bearing 312a
And 312b (corresponding to the member for pulling out the tray in the above description of the prior art)) from the tray base 28, and the trays 26 can be pulled out one after another without moving away from the tray base 28 and moving again.

Therefore, according to the electronic component supplying apparatus 1, the stacker 27 can be pulled out without moving the member for pulling out the tray base 28 with respect to the stacker 27 in the conventional manner. It is possible to pull out the tray base 28 from the unit 27, and it is possible to speed up the operation of taking out the tray.

After that, by driving the cylinder 314, the bearings 312a and 312b are displaced in the direction of the arrow g by the same predetermined displacement amount so as to separate them from each other, and the bearings 312a and 312b are provided on both sides of the edge portion 282. Part 2
82a, 282b (see FIG. 7). This state is detected when the sensor 317a is OFF and the sensor 317b is ON.

At this time, the pair of bearings 312a and 312a
12b is a side portion 282 of the edge portion 282 of the cutout 281.
Since they are displaced in the a and 282b directions by the same displacement amount so as to be spaced apart from each other and engage with both side parts 282a and 282b, in the drawing direction (arrow a) of the tray base 28a,
Since it is centered at a straight line position (two-dot chain line h in FIG. 7) passing through an intermediate position between the both side parts 282a and 282b and pulled out from the stacker 27, it is not possible to guide from both side parts of the tray base with a bearing as in the conventional case. It is unnecessary.

Therefore, according to the electronic component supply apparatus 1, the centering accuracy of the tray base 28 can be improved, the friction between the stacker 27 and the tray base 28 can be reduced, and the tray take-out operation can be speeded up. Can be achieved.

In this case, the bearings 312a and 312a
When b is separated from each other by a displacement amount larger than the predetermined displacement amount in the arrow g direction (see FIG. 8), that is, at the bearings 312a and 312b, on both side portions 282a and 282b of the edge portion 282. If they cannot be engaged, the sensors 317a and 317b are both OFF.

As described above, according to the electronic component supplying apparatus 1, the bearings 312a and 312b are not displaced in the arrow g direction, are engaged with the notches 281, and
It is possible to detect a state in which the engagement cannot be made in an attempted state.

As shown in FIG. 7, the sensor 317 indicates that the bearings 312a and 312b are engaged with the notches 281.
When it can be confirmed from the detection signals of a and 317b, by moving the Y carriage 31 in the direction of the arrow a, the tray base 28 and thus the tray 26 can be pulled out by a necessary displacement amount. In this example, the tray 26a is pulled out below the movement path of the head 46 until the first row is positioned. The position of the electronic component 100a at this time is indicated by reference numeral n.

Then, the head 46 is moved onto the electronic component 100a by driving the motor 40, and the air cylinder 47 is moved.
The electronic component 100a is driven down by the driving method of FIG. The position of the electronic component 100a at this time is indicated by the symbol o.
Next, the head 46 is moved by driving the motor 40 to position the electronic component 100a above the shuttle 53. The position of the electronic component 100a at this time is indicated by the symbol p. After that, the head 46 is lowered by driving the cylinder 47, and the electronic component 100a is delivered to the shuttle 53.

On the shuttle 53, suction is held by a suction pad. The position of the electronic component 100a in this case is indicated by the symbol q. The electronic component 100a is transported to the position of reference numeral r (the pick position of the electronic component in the electronic component mounting device (not shown)) by the electronic component transport unit 5 while being suction-held on the shuttle 53 by the predetermined suction device.

[0049]

According to the invention described in claim 1, the centering accuracy of the tray supporting member can be improved.
It is also possible to speed up the tray ejection work by reducing friction.

According to the second aspect of the present invention, the first aspect is provided.
In addition to achieving the same effect as the invention described in (1), in the work of pulling out the tray support member from the tray storage portion, it is not necessary to separate or move the member for pulling out the tray with respect to the tray storage portion, and to speed up the tray removal work. Can be achieved.

According to the invention of claim 3, claim 1
Or in addition to having the same effect as the invention described in claim 2,
By detecting these states, it is possible to detect whether or not the engaging portion that engages with and pulls out the tray supporting member is certainly engaged with the tray supporting member in the tray removing operation.

[Brief description of drawings]

FIG. 1 is a front view of an electronic component supply device according to an embodiment of the present invention.

FIG. 2 is a left side view of the electronic component supply device.

FIG. 3 is a front view of a stacker vertical transport unit of the electronic component supply device.

FIG. 4 is a left side view of a stacker vertical transport unit of the electronic component supply device.

FIG. 5 is a plan view of a stacker vertical transport unit of the electronic component supply device.

FIG. 6 is a plan view illustrating a Y carriage of the electronic component supply device.

FIG. 7 is a plan view illustrating a Y carriage of the electronic component supply device.

FIG. 8 is a plan view illustrating a Y carriage of the electronic component supply device.

FIG. 9 is a view for explaining the operation of the electronic component supply device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Electronic component supply device 2 Stacker vertical conveyance unit 26, 26a Tray 27 Stacker 28 Tray base 281 Notch 282 Edge part of notch 3 Tray drawer unit 31 Y carriage 310 Y Carriage tip part 312a, 312b Bearing 316a, 316b Bearing 317a, 317b Sensor 4 Electronic component take-out unit 5 Electronic component transport unit 100, 100a Electronic component

Claims (3)

[Claims] 1. A tray in which a plurality of electronic components are mounted side by side, a tray supporting member on which the tray is mounted, and a plurality of tray supporting members on which the plurality of trays are respectively mounted are laminated. A tray storage part to be stored; a tray moving part that moves the tray storage part in the stacking direction to move the tray support member on which the desired tray is placed to a predetermined extraction position; A tray take-out portion that draws out the tray support member from the tray support member, and an engaged portion is formed in the tray support member, and the tray take-out portion inserts the tray support member into the tray storage portion. And a pair of engaging portions provided on the base portion. The pair of engaging portions move in opposite directions in the inserted state of the base portion to move to the engaged portion. Something to engage There performs a drawer of the tray supporting member by leaving the base portion of the engagement is disengaged, the electronic component supply device. 2. The engaged parts of the tray supporting members housed in the tray housing part are aligned in the stacking direction of the tray supporting members, and the base part and the engaging part are of the base part. The electronic component supply device according to claim 1, wherein the electronic component supply device is positioned at a predetermined distance from an edge portion of the engaged portion in the inserted state and the engagement portion is not displaced. 3. A detection unit for detecting a state in which the pair of engaging portions are displaced by a predetermined displacement amount and a state in which the displacement is performed by a displacement amount larger than the predetermined displacement amount. The electronic component supply device according to claim 1 or 2.