JPH0726265Y2 - Swing arm type part conveyor - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a parts conveying device, and is particularly suitable for a production line of an automobile or the like, and can sequentially convey a predetermined number of parts such as bolts. The present invention relates to a swing arm type parts transfer device.

[Conventional technology]

Conventionally, in the production line of automobiles, etc., when attaching necessary numbers of parts such as wheel nuts to automobiles, workers go to the parts storage, select the parts, take them out from the required number storage box, and I am carrying it to the workstation) and installing the parts.

[Problems to be solved by the invention]

However, in such a conventional parts conveying means,
There is a problem that the worker has to go to the parts yard to get the parts, which takes time and labor.

And since the required number of parts is predetermined according to the type, it is desirable to install an automatic feeder for parts and an automatic transfer device at the work site, but still,
No device has been realized to meet such a demand.

The present invention is intended to solve such a problem, and an object of the present invention is to provide a swing arm type part transfer device capable of automatically supplying a required number of parts.

[Means for solving problems]

For this reason, the swing arm type part transfer position of the present invention comprises a support base disposed in the vicinity of the conveyor and a swing arm pivotally mounted on the support base and capable of swinging in the horizontal direction. Is arranged in a direction intersecting with a first arm portion having a saucer at a tip portion for receiving supply of parts from a parts feeder, and the first arm portion.
And a second arm portion that engages with an engaging member that moves along with the conveyance of the conveyor to rotate the swing arm from the part receiving position to the part dispensing position, and the first arm portion. The present invention is characterized in that a payout detection mechanism for detecting that the part has turned to the part payout position and a part payout mechanism for paying out the parts in the tray to the outside based on the detection by the payout detection mechanism are provided.

[Action]

In the swing arm type parts transfer device of the present invention described above,
The engaging member that moves along with the conveyance of the conveyor engages with the second arm portion of the swing arm to rotate the swing arm from the parts receiving position to the parts payout position, and with this rotation, the first arm portion moves. When the payout detection mechanism detects that the parts have turned to the parts payout position, the parts payout mechanism pays out the parts in the tray to the outside.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.
1 to 6 show a swing arm type parts conveying apparatus as an embodiment of the present invention, and FIG. 1 is a plan view thereof.
2 is an elevational view thereof, FIG. 3 is a block diagram for explaining the outline of the control system, FIG. 4 is a side view of the saucer,
5 (a) to 5 (c) are schematic plan views showing the operation thereof, and FIG. 6 is a flow chart showing the operation flow thereof.

As shown in FIGS. 1 and 2, a parts quantitative supply device A and a swing arm type parts transfer device B are provided near an overhead conveyor C in a production line L of an automobile D.

The parts quantitative supply device A comprises a parts feeder 1, a parts supply path 2, a control mechanism 3 having a starting means 3a and a stopping means 3b for the parts feeder 1, a switch 4, and a photoelectric tube type which receives light from a projector 5a. Sensor 5b and base 6
And a counter 8 are provided.

The parts feeder 1 has a plurality of sheet tightening bolts 7 as a plurality of parts of the same model, which are arranged in a line to form a parts supply path 2
The parts supply passage 2 is for guiding the plurality of seat tightening bolts 7 along the descending inclined surface.

Further, the control mechanism 3 is for controlling the payout of the seat tightening bolt 7 from the part payout opening 2a formed at the lower end of the part supply path 2, and as shown in FIG.
A switch 4 for detecting that the payout is possible,
A photoelectric tube type sensor 5b that constantly receives light from the projector 5a and an L-shaped swing arm 12 that receives an ON signal from the switch 4
A delay timer 24 for not starting the operation of the parts feeder 1 during the chilling time, and a starting means 3a for starting the parts feeder 1 based on a signal from the timer 24.
And a counter 8 for counting the detection signals detected by the photoelectric tube type sensor 5b when the sheet fastening bolt 7 crosses the optical path from the projector 5a, and a setting for setting the number of payouts of the sheet fastening bolt 7 once. When the comparator 10 determines that the counter 9 and the count value from the counter 8 have reached the set value (here, eight) from the setter 9, the parts feeder 1
And a stop means 3b for stopping the operation of.

As shown in FIGS. 1, 2, and 4, the swing arm type parts transfer device B includes a support base 11 standing upright near an overhead conveyor C, and an L-shaped swing arm pivotally mounted on the support base 11. 12, a parts payout mechanism 14 for paying out the seat tightening bolts 7 by tilting the tray 13 of the seat tightening bolts 7 of the L-shaped swing arm 12, and for detecting the timing of payout by the parts payout mechanism 14. It is provided with a payout detection mechanism 15.

The support base 11 includes a columnar body 11a erected on the floor 16 and a cross member 11b attached to the upper surface of the columnar body 11a. The support 11 supports the L-shaped swing arm 12 at the shaft portion 11c. ing.

The L-shaped swing arm 12 has a tray 13 which receives supply of the sheet tightening bolts 7 from the parts feeder 1 at a tip portion 12A-1.
A first arm portion 12A that is tiltably attached to the first arm portion 12A, a base end portion 12A-2 of the first arm portion 12A, and a base end portion 12B-2 thereof.
And a second arm portion 12B attached thereto, the second arm portion 12B being attached toward the overhead conveyor C side in a direction perpendicular to the first arm portion 12A. .

The base end portion 12B-2 of the second arm portion 12B is adapted to engage with the hanger arm (engagement member) 17 for suspending the automobile of the overhead conveyor C. The spring 18 for returning the L-shaped swing arm 12 from the swing-out position (parts payout position) to the swing-in preparation position (parts reception position) when the discharge by the hanger arm 17 of the 12B is released, The shock absorber 19 for controlling the speed of return by the spring 18 includes the first arm portion 12A and the support base 11
It is interposed between the columnar body 11a and the horizontal member 11b.

Further, the saucer 13 is configured such that the bottom portion thereof can be opened, and the fixed saucer portion 13A fixed to the tip end side farthest from the shaft portion 11c of the first arm portion 12A and the base end portion side. The movable saucer portion 13B is provided with a movable saucer portion 13B that is tiltably supported, and the movable saucer portion 13B is a bottom portion 13A-of the fixed saucer portion 13A.
The bottom 13B-1 formed so as to cover 1 from below, the upper semicircular portion 13B-2 axially supported by the upper semicircular portion 13A-2 of the fixed saucer portion 13A via the axial support portion 13C, and this upper portion A flange 13B-3 for connecting to the link 20 attached to the semicircular portion 13B-2, and a spring 13B-4 for urging the bottom portion 13B-1 of the movable saucer portion 13B to the normally closed position are provided. It is configured.

The parts payout mechanism 14 is the flange 1 of the movable saucer portion 13B.
3B-3, one end of which is rotatably supported by the shaft support portion 20a
And a third arm portion 21 that pivotally supports the other end of the link 20 at the one end side pivotal support portion 21a. The other end portion 21b of the third arm portion 21 has a hanger arm 1
The roller 22b capable of contacting the roller 7 is the roller 2 of the second arm portion 12B.
The third arm portion 21 is rotatably mounted so as to project toward the overhead conveyor C side from 2a, and the third arm portion 21 is provided on the other end portion 21b side between the one end side shaft supporting portions 21a and 21b of the third arm portion 21. A shaft support portion 21c for supporting the second arm portion 12B is provided.

Further, due to the positional relationship between the shaft supporting portions 20a, 21a, 21c and the roller 22b, the hanger arm 17 abuts on the roller 22b, and the third arm portion 21 moves to the second arm portion 12B with the shaft supporting portion 21c as the center. A mechanism for pushing out the link 20 toward the tip side of the first arm portion 12A when it is rotated relatively to the clockwise direction shown in FIG. 1 is configured, and this mechanism is for paying out the L-shaped swing arm 12. Bottom 13 of the saucer 13 in position
This is for opening the A-1, 13B-1 and is configured as a payout detection mechanism 15 for paying out the sheet tightening bolts 7 stored and conveyed on the tray 13 into the cabin 23.

Reference numeral 25 in the drawing denotes a stopper that restricts the return position of the third arm portion 21 with respect to the second arm portion 12B.

Since the swing arm type parts conveying apparatus as the embodiment of the present invention is configured as described above, as shown in FIG. 5 (a), at the swing preparation position (parts receiving position) of the L-shaped swing arm 12, , Hanger arm 17
Is before contacting the second arm portion 12B,
By turning on the switch 4 by the first arm portion 12A, the payout operation of the seat tightening bolt 7 to the tray 13 is performed (see block a1 in FIG. 6).

Next, while resetting the preset counter 8 (block a2), waiting for the parts feeder 1 to be activated during the arm chilling time (block a3), the parts feeder 1 is activated after this arm chilling time has elapsed (block a4). , Measure the time (or the number) that the phototube sensor 5b was turned on from off (block a5),
The preset counter 8 is set (block a6).

When it is confirmed that the value set in the preset counter 8 has reached the set value (here, eight), the preset counter 8 is held (block a).
7) Stop the parts feeder 1 (block a)
8).

As a result, the payout of the seat tightening bolt 7 to the tray 13 is completed, and the swing arm 12 stands by in a state before being swung out, and the swinging preparation state is set.

When the automobile D moves rightward on the production line L from the state shown in FIG. 5 (a), the hanger arm 17 comes into contact with the second arm portion 12B, so that the L-shaped swing arm 12 is swung. Start.

Then, as shown in FIG. 5 (b), the hanger arm 17
However, when the second arm portion 12B is ejected, the first arm portion 1
When 2A is swung into the cabin 23 and reaches the swung position, that is, when the entire tray 13 is inserted into the cabin 23, the hanger arm 17 abuts on the roller 22b, and the third arm 3a. The part 21 rotates clockwise with respect to the second arm part 12B in FIG.
The bottom part of the movable saucer part 13B by the link motion of 14 1
3B-1 is opened, and the set of seat tightening bolts 7 stored in the tray 13 falls on the floor surface in the cabin 23.

Further, when the hanger arm 17 moves, the hanger arm 17 is disengaged from the roller 22a of the second arm portion 12B and the roller 22b of the third arm portion 21, and the saucer 13 is closed by the spring 13B-4. The spring 18 returns the L-shaped swing arm 12 from the swing-in position to the part receiving position.

Then, the payout operation of the seat tightening bolt 7 to the tray 13 is performed again.

Other parts such as bolts and nuts may be used as the parts.

[Effect of device]

As described above in detail, according to the swing arm type parts conveying device of the present invention, the support base disposed in the vicinity of the conveyor, and the swing arm pivotally attached to the support base and capable of rotating horizontally. The swing arm is disposed in a direction intersecting with the first arm portion having a tray at the tip portion for receiving the parts supplied from the parts feeder, and the swing arm of the conveyor. A second arm portion that engages with an engaging member that moves with conveyance to rotate the swing arm from a parts receiving position to a parts dispensing position, and the first arm portion reaches a parts dispensing position. If a payout detection mechanism for detecting turning is provided, and a part payout mechanism for paying out the parts in the tray to the outside based on the detection by the payout detection mechanism. In the Hare simple structure, time and effort had removed part manually from conventional parts yard can be omitted, there is an advantage that it is possible to significantly increase the working efficiency.

[Brief description of drawings]

1 to 6 show a swing arm type parts conveying apparatus as an embodiment of the present invention, and FIG. 1 is a plan view thereof.
2 is an elevational view thereof, FIG. 3 is a block diagram for explaining the outline of the control system, FIG. 4 is a side view of the saucer,
5 (a) to 5 (c) are schematic plan views showing the operation thereof, and FIG. 6 is a flow chart showing the operation flow thereof. 1 …… Parts feeder, 2 …… Parts supply path, 2a ……
Parts outlet, 3 ... control mechanism, 3a ... start-up means,
3b ... Stopping means, 4 ... Switch, 5a ... Emitter, 5b ...
... Phototube sensor, 6 ... Base, 7 ... Seat tightening bolts as parts, 8 ... Preset counter, 9 ...
Setting device, 10 ... Comparator, 11 ... Supporting base, 11a ... Columnar body, 11b ... Horizontal member, 11c ... Shaft part, 12 ... L-shaped swing arm, 12A ... First arm part, 12A-1 …… Tip, 12A-
2 ... Base end part, 12B ... Second arm part, 12B-1 ... Tip part, 12B-2 ... Base end part, 13 ... Pan, 13A ... Fixed pan part, 13A-1 ... Bottom part, 13A-2 ... Upper semi-circular part, 13B ...
… Movable saucer part, 13B-1 …… bottom part, 13B-2 …… upper semicircular part, 13B-3 …… flange, 13B-4 …… spring, 13C
...... Axial support, 14 ...... Parts payout mechanism, 15 …… Payout detection mechanism, 16 …… Floor, 17 …… Hanger arm for vehicle suspension as an engaging member, 18 …… Spring, 19 ……
Shock absorber, 20 ... Link, 20a ... Shaft support, 21 ... Third arm, 21a ... One end side shaft support, 2
1b ... other end, 21c ... shaft support, 22a, 22b ... roller, 23
…… Cabin, 24 …… Delay timer, 25 …… Stopper, A …… Parts fixed quantity supply device, B …… Swing arm type parts transfer device, C …… Overhead conveyor, D
…… Car, L …… Production line.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP 50-90071 (JP, A) JP 47-46986 (JP, B1) JP 61-44773 (JP, B2) JP 62- 7614 (JP, Y2) Actual public Sho 53-5351 (JP, Y2)

Claims (1)

[Scope of utility model registration request] 1. A support base disposed in the vicinity of a conveyor,
A first arm part having a swing arm pivotally mounted on the support base and capable of swinging in a horizontal direction, the swing arm having a saucer at a tip end for receiving parts supplied from a parts feeder; A second arm portion which is disposed in a direction intersecting with the arm portion and which engages with an engaging member that moves along with the conveyance of the conveyor to rotate the swing arm from the part receiving position to the part dispensing position. And a payout detection mechanism for detecting that the first arm portion has swung to a parts payout position, and a parts payout mechanism for paying out parts in the tray to the outside based on detection by the payout detection mechanism. A swing arm type parts transfer device characterized by being provided with.