JPH01177927A - Part supply positioner - Google Patents

Abstract

PURPOSE:To prevent a part from being dislocated from a part pick-up position by pressing the part in conveyance to a part pick-up position with the use of a pressing means capable of reciprocating in a part conveyance path while being interlocked with a movable member. CONSTITUTION:A movable member 15 is reciprocated between the vicinity of a part delivery part in a relay mechanism for sequentially relaying a part 12 and a position where the part 12 is picked up by a part chuck 20. Interlocked with the reciprocating motion of the movable member 15, a pressing means 45 is reciprocating in a part conveyance path for pressing a part in conveyance to a part pick-up position. By providing the pressing means 45 in such a way, hang-up caused relatively between a part 12 and a following part 12 on the movable member 15 is easily released while the part 12 is never dislocated from a part pick-up position by a part chuck 20 so that it is possible to surely hold the part 12 by the part chuck 12.

Description

[Detailed description of the invention] Technical field The present invention relates to a component supply positioning device.

Background technology FIG. 8 shows a conventional parts supply positioning device.

As shown in the figure, a large number of electronic components 2 are housed in a line in a cylindrical stick 1 that is open at least one end and serves as a component supply source. The electronic component flows out from the open end. The electronic component 2 that flows out of the stick 1 and is supplied slides on the guide longitudinal member 3 and is guided in the horizontal direction (in the direction of the arrow Y). The electronic component 2 on the guide longitudinal member 3 is slid onto the guide longitudinal member 3.
Conveying means (not shown) is provided for discharging the containers one by one. This transport means and the guide longitudinal member 3 constitute a relay mechanism that sequentially relays and discharges the electronic components 2 supplied from the stick 1.

A movable member 5 is arranged in front of the guide longitudinal member 3, and is guided by a guide rail 6 so as to be able to reciprocate in the up and down direction (in the direction of arrow Z and the opposite direction). The movable member 5 is movable from the position shown by the solid line in FIG. to carry. The movable member 5 is an air cylinder 7
This causes reciprocating movement in synchronization with the component ejection operation by the relay mechanism described above.

The position of the movable member 5 indicated by the two-dot chain line in FIG. 8 is a position where the component chuck 8 can grasp and pick up the electronic component 2 on the movable member. The component chuck 8 is attached to the tip of the arm of a scalar type robot (not shown) that performs the same movement as a human right arm, for example, and together with the scalar type robot constitutes a component mounting work means, and is picked up from the movable member 5. The electronic component 2 is carried onto a work object (not shown) such as a printed circuit board and is attached to the work object.

The above-mentioned movable member 5 and the air cylinder 7 constitute a separating and positioning means ++11 for receiving the parts discharged from the above-mentioned relay mechanism one by one and positioning them at the part pick-up position by the above-mentioned part mounting work means.

In the component supply positioning device having the above-described configuration, when the movable member 5 carrying the electronic component 2 is raised, the first electronic component 2 and the first electronic component 2 on the guide longitudinal member 3 following this electronic component 2 are moved up.
may get caught in each other, and this reaction may shift the position of the electronic component 2 on the movable member 5, resulting in a situation where the component chuck 8 is unable to grip the electronic component.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned points, and its object is to provide a component supply positioning device in which components do not shift from the component pick-up position by component mounting work means. .

The component supply positioning device according to the present invention has a movable member that reciprocates between the vicinity of a component discharge section of a relay mechanism that sequentially relays and discharges supplied components to a component pick-up position by a component mounting work means. The present invention is characterized by having a pressing means that reciprocates along a component transport path by the movable member in conjunction with the reciprocating motion of the movable member and presses the component being transported toward the component picking position.

Embodiment Hereinafter, a component supply and positioning device as an embodiment of the present invention will be explained with reference to the accompanying drawings.

As shown in FIGS. 1 to 3, a large number of electronic components 12 are housed in a row in a cylindrical stick 11 serving as a component supply source with at least one open end. By tilting the stick (not shown) upward (in the direction of arrow Z) with respect to the horizontal direction, the electronic component flows out from the open end, that is, the front end (end in the direction of arrow Y) of the stick due to gravity. As is particularly clear from FIG. 3, the supplied electronic component 12 is, for example, an IC;
It has a plurality of terminals 12a. The electronic component 12 that flows out from the stick 11 and is supplied slides within the longitudinal guide member 13 and is guided forward (in the direction of arrow Y). On the guide longitudinal member 13, there is a transport means (not shown) for sliding the electronic components 12 on the guide longitudinal member and ejecting them one by one.
is provided. This transport means and the guide longitudinal member 13
Accordingly, the electronic component 12 supplied from the stick 11
A relay mechanism is configured that sequentially relays and discharges.
In front of the guide longitudinal member 13, a movable member 15 formed by subassembling a plurality of members is arranged, and as shown in FIG. 4, the guide rail 1 provided on the base member 16
7, it is guided so as to be able to reciprocate in the front-rear direction (direction of arrow Y and the opposite direction thereof), that is, along the extension line of the elongated direction of the guide longitudinal member 13. The movable member 15 moves on the guide rail 17 to the position shown in FIG.
3 to the position shown in FIG. 1,
One electronic component 12 discharged from the guide longitudinal member 13 is supported. The movable member 15 is moved forward (in the direction of arrow Y) by the air cylinder 19 in synchronization with the component ejection operation by the relay mechanism described above. Further, a coil spring 18 is connected to the rear end portion of the movable member 15 for imparting a bias force toward the rear (in the opposite direction of the arrow Y direction) to the movable member.

The position of the movable member 15 shown in FIG. 1 is such that the component chuck 20 can grip and pick up the electronic component 12 on the movable member. The component chuck 20 is attached to the tip of the arm of a scalar type robot (not shown) that moves in the same way as a human's right arm, and together with the scalar type robot constitutes a component mounting work means, and is picked up from the movable member 15. The electronic component 12 is a work target such as a printed circuit board (not shown)
This is carried into the top and attached to the work object. A bracket 22 is fixed to the tip of the base member 16, and the movable member 15 is positioned at the position shown in FIG. 1 by coming into contact with a stopper 22a provided at the lower end of the bracket 22.

As shown in FIGS. 1, 2 and 5, the air cylinder 1
In front of 9, a longitudinal moving plate 24 is mounted in the front-rear direction (arrow Y
direction and the opposite direction). A support block 25 is fixedly installed on the base member 16,
A long hole 24a formed in the rear end of the moving plate 24 and extending in the longitudinal direction is slidably fitted into a support pin 25a projecting from the indicator block 25. Another long hole 24b extending in the same direction as this long hole 24a is formed at the front end of the moving plate 24, and the long hole 24b is in sliding contact with a pin 15a protruding from the lower surface of the movable member 15. . With this configuration, the movable plate 24 is slidable in the front-back direction.

The moving plate 24 is connected to the rod 19a of the air cylinder 19 via a coverr 27 at its rear end.

That is, the movable member 15 is driven by the air cylinder 19 via the moving plate 24.

As shown in FIGS. 1, 5, and 6, a small plate 29 is attached to the lower surface of the front end of the movable plate 24 so as to be slidable in the moving direction of the movable plate, that is, in the front-rear direction. Specifically, as shown in FIG. 6, the small plate 29 has two elongated holes 29a extending in the front-rear direction, and two elongated holes 29a protruding from the lower surface of the movable plate 24.
One book support pin 24d is slidably fitted into each member hole. As shown in FIG. 6, the small plate 29 is formed in an L-shape and can be engaged with a pin 15a that slides into a long hole 24b formed at the front end of the moving plate 24. Note that, as described above, this pin 15a is connected to the movable member 15.
It is protruded from the underside of the . Pins 24e and 29a are protruded from the lower surfaces of the moving plate 24 and the small plate 29, respectively, and a coil spring 31 is inserted between the pins.
has been erected. The spring constant of this coil spring 31 is much larger than the spring constant of the coil spring 18 that imparts a bias tension to the movable member 15.

As shown in Figures 1 and 2, as well as Figures 4 and 5,
A pair of pins 32a, 3 are provided on the right side of the movable member 15.
2b, 33a, 33b and a pair of lever members 34a, 3
The first pressing member 35 is installed via a link mechanism consisting of 4b. A swing lever 37 is also swingably attached to the right side of the movable member 15 in front of the link mechanism via a pin 37a. The upper end of the swing lever 37 is attached to a roller 35 provided at the front end of the first pressing member 35.
In addition, the lower end portion 37b can come into contact with a bridge member 38 fixed to the lower surface of the front end of the small pousate 29 with a screw 38a. A pin 15 is provided at the rear end of the movable member 15.
A coil spring 40 is provided between this pin 15c and a lever member 34b forming a part of the link mechanism described above. The link mechanism is biased clockwise in FIGS. 1 and 5 by this coil spring 40.

The link mechanism described above, the first pressing member 35, the swing lever 37, and the coil spring 40 constitute a first pressing means for pressing the electronic component 12 on the movable member 15 toward the movable member. ing.

As shown in FIGS. 4 and 7, a pair of pins 42a and 42b are provided on the left side surface of the base member 16.

43a, 43b and a pair of lever members 448, 44b, the second pressing member 45 has a leaf spring shape.
is provided. Note that the second pressing member 45 is also shown in FIG. A block 46 is fixed to the left side of the movable member 15, and a roller 46a provided on the block can engage with a protrusion 44c of a lever member 44a of the link mechanism. Further, a coil spring 47 is installed between the lever member 44a and the pin 16a of the base member 16. The link mechanism is biased clockwise in FIG. 7 by this coil spring 47.

A block 4 including a link mechanism including the above-described lever members 44a and 44b, a second pressing member 45, and a roller 46a.
6 and a coil spring 47, in conjunction with the reciprocating movement of the movable member 15, the electronic component 12 being transported is moved reciprocally along the component transport path by the movable member 15 into the component chuck 20 (first
A second pressing means is configured to press toward the component picking position according to the method (shown in the figure). That is, the second pressing member 45 contacts the rear end of the electronic component 12 in the relay direction. Further, the link mechanism including the lever members 44a and 44b pushes the second pressing member 45 when the movable member 15 moves forward (in the direction of the arrow Y), so that the movable member 15 is moved to the component ejecting section of the relay mechanism. The second pressing member 45 is made to protrude into the component transport path and follow the movable member 15 after being separated from the component transport path, and conversely, when the movable member 15 moves back (in the opposite direction of the arrow Y direction), the second pressing member 45
Then, when the movable member 15 approaches the component discharge section of the relay mechanism, it is evacuated from the component conveyance path.

In this way, since the link mechanism is used, the second pressing member 4
The operation of the link mechanism 5 is reliable, and the link mechanism has a simple structure, which contributes to reducing the cost of the device as a whole.

The guide longitudinal member 1
Separation and positioning means is configured to receive the electronic components 12 discharged one by one from the relay mechanism including the electronic components 3 and position them at a component picking position by the component chuck 2° (shown in FIG. 1).

As shown in FIGS. 1, 2, and 5, a molded block 5o is provided at the distal end of the guide longitudinal member 13 so as to be able to reciprocate in the vertical direction (in the direction of arrow Z and the opposite direction). This molded block 50 is fitted between the left and right terminals 12a (FIG. 3) of the electronic component 12 to widen the distance between the terminals on both sides. Molded block 5
A swing lever 51 is disposed below the base member 16, and is swingably attached to the base member 16 by a pin 51a at its rear end. Rollers 51b and 51C are provided at the center and front end of the swinging lever 51, respectively.The roller 51b is in sliding contact with the cam plate 52 fixed on the movable plate 24, and the other roller 51c is attached to the forming block 5.
It is in sliding contact with the bottom surface of 0. That is, air cylinder 19
The molding block 50 moves up and down due to the reciprocating movement of the movable plate 24 accompanying the operation.

As shown in Figures 1 and 2, as well as Figures 5 and 7,
Two leaf springs 5 extend rearward (in the opposite direction of the arrow Y direction) to a bracket 22 fixed to the front end of the base member 16.
4 is installed.

This leaf spring 54 has its tip abutted against the foremost terminal 12a of the electronic component 12 of the movable member 15, thereby positioning the electronic component with high precision at the component pick-up position by the component chuck 20. .

Further, as shown in FIGS. 1, 5, and 7, a sensor 55 is provided on the movable member 15 to detect the presence or absence of the electronic component 12.

Next, the operation of the component supply and positioning device configured as described above will be briefly explained.

First, the state shown in FIG. 5 is the home position of the apparatus, and as shown in FIG. 5, the electronic component 12 ejected from the guide longitudinal member 13 reaches the movable member 15. At this time,
The second pressing member 35 has already pressed this electronic component 12 toward the movable member 15 . Next, the air cylinder 19
operates, the rod 19a protrudes, and the moving plate 2
4 starts moving forward (in the direction of arrow Y). First, the swing lever 51 is driven by the cam plate 52 on the movable plate 24, and the terminal 12a of the electronic component 12 following the electronic component 12 on the movable member 15 is moved to the molding block 50.
The width is formed by widening. When the movable plate 24 moves further forward, the small plate 29 provided on the lower surface of the movable plate 24 comes into contact with the pin 15a protruding from the lower surface of the movable member 15, as shown in FIG. The moving plate 24 moves further forward, and the moving plate 24 moves forward via the coil spring 31.
The movable member 15 starts moving forward as it is pushed by the small plate 29 which is pulled forward by the movable member 15 .

Note that, as described above, this operation is performed because the spring constant of the coil spring 3 is larger than the spring constant of the coil spring 18 that pulls the movable member 15 backward.

When the movable member 15 moves forward by a predetermined distance, the stopper 22a
It stops when it comes into contact with. Therefore, the pin 15a of the movable member 15
The small plate 29 that abuts on is also prevented from advancing. As shown in FIG. 6, the movable plate 24 can move relative to the small plate 29 within the range of the difference in diameter between the elongated hole 29a and the pin 24d, so from now on only the movable plate 24 moves within this range. As only the moving plate 24 moves forward, the swinging lever 37 swings from the position shown in FIG. 37 to the position shown in FIG.
Separate from 2. Further, as shown in FIG. 7, while the movable plate 24 is moving forward, the roller 46a on the block 46 provided on the movable member 15 operates the link mechanism on the left side of the base member 16, and the second pressing member 45 Movable member 15
Press the rear end of the upper electronic component 12.

In this way, the electronic component 12 on the movable member 15 is positioned at the component pickup position by the component chuck 20.

After the electronic component 12 on the movable member 15 is picked up by the component chuck 20, the rod 19 of one air cylinder
a is pulled, and the action of the coil springs 18, 31, 40 and 47 returns the device to the state shown in FIG.

Note that since the movable member 15 moves forward along the extension line of the guide longitudinal member 13 in the extending direction, the electronic components 12 on the movable member 15
The electronic components 12 on the guide longitudinal member 13 following this can be smoothly separated without being caught with each other.

Effects of the Invention As detailed above, in the component supply positioning device according to the present invention, the distance between the vicinity of the component discharge section of the relay mechanism that sequentially relays and discharges supplied components to the component pick-up position by the component mounting work means is It has a movable member that reciprocates,
It has a pressing means that reciprocates along the component transport path by the movable member in conjunction with the reciprocating motion of the movable member and presses the component being transported toward the component pick-up position.

By providing the pressing means, the component on the movable member and the component following it can be easily released from each other, and the component can be prevented from shifting from the component picking position by the component mounting work means. The parts can be reliably gripped by the mounting means.

[Brief explanation of the drawing]

1 and 2 are a side view and a perspective view including a part of the component supply positioning device according to the present invention, FIG. 3 is a perspective view of a stick as a component supply source, and FIG. FIG. 5 is an IV-IV arrow view regarding the figure. 6 and 7 are partially detailed views of the component supply and positioning device shown in FIGS. 1 and 2, and FIG. 8 is a side view including a partial cross section of the conventional component supply and positioning device. Explanation of symbols of main parts 12... Electronic parts 13... Guide longitudinal member 15... Movable member 19...
...Air cylinder 20...Parts chuck 24
...Moving plate 29...Small plate 45.Old...Press member 50...Molded block Applicant Pioneer Corporation

Claims (3)

[Claims] (1) A component consisting of a relay mechanism that sequentially relays and discharges supplied parts, and a separation and positioning means that receives the parts discharged from the relay mechanism one by one and positions them at the component pick-up position by the component mounting work means. In the supply positioning device, the separation positioning means reciprocates between the vicinity of the component discharge section of the relay mechanism and the vicinity of the component pick-up position in synchronization with the component discharge operation by the relay mechanism, and reciprocates the components to be discharged. a movable member that supports and transports the part to the component picking position; and a movable member that reciprocates along a component transport path by the movable member in conjunction with the reciprocating movement of the movable member to direct the part being transported toward the component picking position. A parts supply positioning device comprising a pressing means for pressing. (2) The relay mechanism includes a guide longitudinal member that slidably supports the supplied component, and a driving means that slides the component on the guide longitudinal member, and the movable member is the guide longitudinal member. 2. The component supply positioning device according to claim 1, wherein the component supply positioning device reciprocates along an extension line in the direction of extension of the component supply positioning device. (3) The pressing means includes a pressing member that comes into contact with the rear end of the component in the relay direction, and when the movable member moves forward, the pressing member is moved to the component transport path after the movable member is separated from the component discharging section. and a link mechanism that protrudes to follow the movable member and causes the pressing member to retreat from the component transport path when the movable member approaches the component discharging section by causing the pressing member to move back when the movable member moves back. A component supply positioning device according to claim 1 or 2.