JPH077066Y2 - Link lever insertion machine - Google Patents

Description

[Detailed Description of the Invention] [Overview] A link lever inserting machine for automatically inserting a link lever into a work is provided with a shaft hole for the purpose of automating the process from the supply of parts to the attachment to the work. Then, a link lever inserting machine for automatically inserting a link lever having an axis on the upper surface into a work by moving the insertion head, wherein the insertion head has a suction portion for adsorbing the link lever on the upper surface side. , A first positioning portion having a concave portion into which the shaft of the link lever is inserted, and a movable pin inserted into a shaft hole at the center of the link lever are slidably accommodated, and the pin is normally lowered by a spring. And a second positioning portion projecting from the movable pin, and a concave portion for positioning into which the shaft on the workpiece side is inserted is formed at the tip of the movable pin.

[Industrial application field]

The present invention relates to a link lever inserting machine that automatically inserts a link lever into a work.

The process of mounting various parts on a work such as a cassette deck is gradually automated, but the automatic insertion (mounting) of the link lever has not been realized yet. The present invention makes this possible.

[Conventional technology]

The cassette deck often uses a link lever as an internal mechanism. For example, the link lever 10 shown in FIG. 5 is used by rotating it around the central shaft hole 11. This link lever
A shaft 12 is erected on the upper surface of one blade of the blade 10 and a shaft 13 is erected on the lower surface of the other blade. The shaft of the deck chassis is inserted in the shaft hole 11,
The shaft 13 on the lower surface is movably inserted into the profiled hole of the chassis.

The process of inserting a link lever involves removing one link lever from a container in which a large number of link levers are cluttered and mounting it on the shaft of a workpiece with the front and back and the orientation fixed. It is generally done.

[Problems to be solved by the device]

The work of repeatedly inserting the link lever into a large number of works by hand is inefficient, which is a factor for reducing cost and improving productivity, and forgetting to insert the work.

The present invention aims to automate the insertion of the link lever.

[Means for Solving the Problems]

FIG. 1 is a system configuration diagram of the present invention, in which 10 is a link lever, 20 is a link lever insertion machine, 30 is an insertion head thereof, and 40 is an insertion head.
Is a work, 50 is its carrier, and 60 is a parts feeder.

[Action]

There are a plurality of conveyors 50, each of which carries a work 40 and moves on a chain conveyor, and stops immediately below the link lever insertion machine 20. Reference numeral 51 is a presence / absence detection unit of the work 40.

The parts feeder 60 clutters a large number of link levers in a container, and sends one by one to the linear feeder 61 in order by vibration or the like. Inside the straight feeder 61, the directions are aligned with the front and back surfaces of the link lever, and they reach the shoot end 62 in alignment. FIG. 4 shows the shoot end 62 in detail. A shallow groove 63 for guiding the entire link lever 10 and a deep groove 64 for accommodating the shaft 13 on the lower surface are formed in the chute end 62, and the end shape of the guide groove 63 matches the shape of the link lever 10. I am allowed. Reference numeral 65 is a cover that covers most of the guide groove 63, but this cover 63 is removed at the portion where the shaft 12 passes on the upper surface of the link lever 10 and at the final reaching position of the link lever 10.

The link lever inserting machine 20 is supported by an arm 71 and can move horizontally between the chute end 62 and the work 40.
The link lever inserting machine 20 supports the insertion head 30 so as to be able to move up and down, and automatically inserts the link lever 10 attracted by the chute end 62 into the work 40.

〔Example〕

FIG. 2 is a block diagram showing an embodiment of the present invention, showing the details of the link lever inserting machine 20. In the figure, 21 is the base,
A vertical drive source 22 such as an air cylinder is fixed here. Reference numeral 23 denotes an elevating mechanism driven by the vertical drive source 22, which is provided with a position correcting mechanism (compliance mechanism) 24 that swings in the horizontal direction. The insertion head 30 has this position correction mechanism.
Since it is fixed to the tip of 24, it moves vertically and swings horizontally. Reference numeral 25 denotes an insertion detection unit (for example, a proximity switch) that detects whether the link lever is forgotten to be inserted from the lowered position of the elevating mechanism 23. First forgetting to insert the link lever
This occurs when the link lever 10 fails to be attracted at the shoot end 62 in the figure, or is dropped after the attraction. In this case, the insertion head 30
Is lowered, the head 30 is lowered too much by the thickness of the link lever. Therefore, when the insertion detection unit 25 detects that the head 30 has dropped too much, it is determined that the insertion has been forgotten and a retry is performed.

The insertion head 30 includes a suction portion 31 and two positioning portions 32 and 33. FIG. 3A shows the details of the insertion head 30. The suction part 31 has a suction pad 31A at the tip, and when this is pressed against the link lever 10 to reduce the pressure inside the main body 31B, the lever can be sucked. The adsorption may be released by stopping the decompression inside the main body 31B. The first positioning portion 32 has a positioning recess 32A into which the shaft 12 on the upper surface of the link lever 10 is inserted. The second positioning portion 33 has a movable pin 33A that is inserted into the shaft hole 11, and this is always projected downward by a spring 33B. A concave portion 33C into which the shaft 41 of the work 40 is inserted is formed at the tip of the movable pin 33A.

FIG. 3A shows a state before the link lever 10 is attracted. When the suction head 30 is lowered in this state, the movable pin 33
A enters the shaft hole 11 of the link lever 10 and the shaft 1 of the lever
2 enters the recess 32A of the first positioning portion 32. At the time of this positioning, the insertion head 30 can be swung by the position correction mechanism 24 shown in FIG. 2, so that some positional deviation is corrected. Movable pin 33A
The chamfered portion 33D allows insertion into the shaft hole 11 even if there is some displacement.

When the positioning is completed, the suction lever 31 sucks the link lever 10 and moves it above the work 40 as shown in (b). The work 40 has a shaft 41 protruding upward and a deformed hole 42. The insertion (mounting) of the link lever 10 is completed by inserting the shaft 13 on the lower surface into the deformed hole 42 on the work side and inserting the shaft 41 on the work side into the shaft hole 11.

When the insertion head 30 is lowered from the state of (b), the work 40
The tip of the shaft 41 enters the recess 33C of the movable pin 33A, and the tip of the shaft 13 of the link lever 10 enters the deformed hole 42 of the work 40.
When the insertion head 30 is further lowered, the upper part of the shaft 41 is a movable pin.
Workpiece 4 enters the recess 33C of 33A and the tip of movable pin 33A
Abut 0. At this time, the shaft 13 of the link lever 10 moves the work 4
Approximately half enter the hole 42 of 0. When the insertion head 30 is further lowered, the link lever 10 contacts the work 40, and the movable pin 33A
Completely recedes. Therefore, the shaft 41 of the work 40 is deeply inserted into the shaft hole 11 of the link lever 10 as shown in (c), and the shaft of the link lever 10 is also deeply inserted into the hole 42 of the work 40. When the suction of the suction unit 31 is stopped in this state, the link lever 10 remains on the work 40 by its own weight, and when the suction unit 30 is raised, the insertion is completed.

The inserted link lever 10 rotates about the shaft 41 and converts the movement of the shaft 12 into the movement of the shaft 13 (or vice versa).

[Advantage of the Invention] As described above, according to the present invention, since the link lever can be automatically inserted, the automatic assembly ratio of the cassette deck and the like can be increased, and the productivity and the cost can be improved.

[Brief description of drawings]

1 is a system configuration diagram of the present invention, FIG. 2 is a configuration diagram of an embodiment of the present invention, FIG. 3 is an operation state diagram of the present invention, FIG. 4 is a configuration diagram of a parts alignment chute end, and FIG. FIG. 4 is a configuration diagram showing an example of a link lever. In the figure, 10 is a link lever, 11 is a shaft hole, 12 and 13 are shafts, 20 is a link lever insertion machine, 30 is an insertion head, 31 is a suction part, 32
Is the first positioning portion, 32A is the concave portion, 33 is the second positioning portion, 3
3A is a movable pin, 33B is a spring, 33C is a recess, 40 is a work, 41
Is a shaft and 42 is a deformed hole.

Claims (1)

[Scope of utility model registration request] A link for automatically inserting a link lever (10) having a shaft hole (11) and a shaft (12) on an upper surface into a work (40) by moving an insertion head (30). A lever insertion machine, wherein the insertion head (30) has a suction portion (31) for sucking the link lever (10) on the upper surface side.
A first positioning portion (32) having a recess (32A) into which the shaft (12) on the upper surface of the link lever (10) is inserted; and a shaft hole (11) inserted in the center of the link lever (10). The movable pin (33A) is slidably housed, and the pin (33A) is
A) is provided with a second positioning part (33) for projecting A) downward by a spring (33B), and the movable pin (33A) has a tip (41) for inserting the shaft (41) on the side of the work (40) for positioning. A link lever inserting machine, characterized in that a recess (33C) is formed.