JPH06268396A - Component mounting device - Google Patents

Abstract

PURPOSE:To effect predetermined operation of component mounting by using only one driving means by changing a trail of a holding means from a circle trail to a straight one by guiding a cam follower with a half-circular plate when a driving means rotates a first rotator. CONSTITUTION:When an air cylinder drives to start rotation of a first rotator 1 and a second rotator 4 while keeping contact of pins 7 and 8, a cam follower 25 is brought in contact with a circular arc plane 26a of a half-circular plate 26. Accordingly, a unity of the first rotator l and the second rotator 4 kept by a tension spring 6 is released and the second rotator 4 is, as a result, displaced by rotation to become away from the first rotator 1. As a trail of a component W changes from a circular trail formed with a shaft member 3 of the rotator l as a center into a straight trail, the component W moves by a trail moving approximately vertically to a mounting substrate P. Thus, the component W is mounted by insertion into a through hole smoothly and the predetermined operation of component mounting can be effected by using only one driving means.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for mounting components such as electronic components.

[0002]

2. Description of the Related Art Conventionally, many devices for mounting small-lot mounting components have been proposed. For example, Japanese Patent Fairness 1-4
As the component mounting apparatus disclosed in 2159, a component mounting apparatus has been proposed which inserts a finger holding a component into a predetermined position by giving three degrees of freedom in the XYZ directions and performing predetermined drive control. There is.

[0003]

However, in the conventional example configured as described above, since at least three-axis drive sources are required, the cost is increased due to an increase in the number of parts for configuring the entire apparatus. It was unavoidable, and it was not suitable for small lots for which a large amount of money could not be spent.

Therefore, the component mounting apparatus of the present invention has been made in view of the above circumstances, and its purpose is to perform a predetermined component mounting operation by using only one driving means. Is to be configured at low cost.

[0005]

[Means for Solving the Problems] and

In order to solve the above problems and achieve the purpose,
The present invention is a component mounting apparatus that transfers a component from a supply position to a mounting position and mounts the component. The component mounting device is rotatably supported by a shaft supporting portion of a base and is provided with driving means for rotationally driving the shaft supporting portion. The first rotating body is rotatably supported by the first rotating body, and one end of the first rotating body is first
The second rotary body is provided with a gripping means that is biased toward the rotary body side, is rotationally restricted at a predetermined position, and has a gripping means for gripping a component at the other end, and is provided in the vicinity of one end portion of the second rotary body. The cam follower is provided with a semi-circular plate provided above the shaft supporting portion of the first rotating body in the base, and the cam follower is applied to the semi-circular disc as the first rotating body is rotated by the driving means. By performing contact guidance and changing the locus of the gripping means from a circular locus to a linear locus, it works to transfer the component from the supply position to the mounting position and mount the component.

Further, preferably, the drive means is a reciprocating drive cylinder disposed on the base, and the rack provided on the operating body of the cylinder and the rack provided on the shaft supporting portion of the first rotating body are meshed with the rack. The first rotating body is rotationally driven in accordance with the operation of the reciprocating drive cylinder, and the cam follower of the second rotating body is abutted and guided by the semi-circular plate so that the locus of the gripping means is linear from the circular locus. By changing to the locus, it works to transfer the component from the supply position to the mounting position and mount the component.

[0007]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a schematic front view of the component mounting apparatus, which is shown together with the trajectory of the component W to be gripped. In the figure, the shaft support 1 of the base is on the base 100.
There is provided a first rotating body 1 which is rotatably supported by a shaft 00a and which has a shaft 3 which is rotationally driven by the shaft supporting portion 100a as a rotation center. A pinion gear, which will be described later, is fixed to the shaft body 3 of the first rotating body 1 and meshes with a rack 19 shown in the figure by a dashed-dotted line. The rack 19 is reciprocally driven in the arrow direction. Accordingly, the shaft body 3 is rotated so that the first rotating body 1 is rotated in the clockwise direction and the counterclockwise direction.

The first rotating body 1 is provided with a second rotating body 4 which is rotatably supported by a shaft body 5 shown by a broken line, and is rotated clockwise by an urging means of a tension spring 6 in the figure. It is held in a biased state so as to rotate in the direction. For this reason, the tension spring 6 is connected to the shaft body 3 of the first rotating body 1.
Is stretched between a hook 6a provided downward from a lower portion of the first rotary body 4 and a hook 6b provided at a lower end of the second rotary body 4, and is provided downward from the lower surface of the first rotary body 1. The pin 8 fixed to the second rotating body 4 contacts the pin 7 to prevent further rotation.

A mechanism provided with a chuck 17 as a gripping means for gripping the component W is provided at the other end of the second rotating body 4 provided as described above, while a broken line is provided at a lower end portion of the second rotating body 4. The cam follower 25 shown in FIG.

Next, on the base 100, a member, which is a semi-circular plate 26 and whose outer peripheral surface forms an arc, extends from the base 100 substantially above the shaft 3 of the first rotating body 1. It is fixed at the fixed portion 100b provided.

On the other hand, FIG. 2 is a front view showing in actuality FIG. 1, and FIG. 3 is a front view showing the structure of the air cylinder 18. In both figures, a state is shown in which an air cylinder 18 as a driving means for rotationally driving the first rotating body 1 is provided. In the state shown, the piston 18a is equivalent to the stroke S in the air cylinder 18. It is shown that the rack 19 fixed to the piston 18a is projected as shown. When the air cylinder 18 is driven, the stroke S retracts and returns to the standby position. However, the rack 19 is fixed to the shaft body 3 by the pinion gear 2
Since it meshes with 0, the shaft body 3 is configured to rotate in the counterclockwise direction when the air cylinder 18 is driven. Further, in FIG. 2, the shaft body 3 is the base 1
00 is rotatably supported on a shaft supporting portion 100a extending from above, and the above-mentioned semi-circular plate 26 is fixed so as to extend in a substantially horizontal direction from a member once suspended from the base 100. As shown in the figure, the fixed portion 100b is fixed such that the arcuate portion is slightly downward to the left.

On the other hand, a shock absorbing device 24 for stopping a moving object at a predetermined position by absorbing shock is provided at a side surface portion of the shaft support 100a.

Next, FIG. 4 which is a sectional view taken along the line AA of FIG.
In FIG. 5 showing the internal structure of the second rotating body 4, first, as shown in FIG. 4, the above-mentioned shaft body 5 is fixed to the second rotating body 4 by press-fitting 5a. It is provided so as to be rotatable with respect to the first rotating body 1 via the bearing. Further, the cam follower 25 is a bracket 4e which has a bearing (not shown) built therein and is integrally fixed to the second rotating body 4, and has the hook 6b on the opposite surface as shown in the figure. It is fixed to a bracket 4e provided on the.

Next, as shown in FIG. 5, the third rotating body 9 is rotatably supported by the second rotating body 4,
The rotary actuator 11 is rotationally driven via the coupling 10.

A support member 12 is slidably supported on the third rotating body 9 and is biased by a compression spring 13, and a sliding range is restricted by a pin 14 and a groove 15. And the third rotating body 9 and the supporting member 1
The rotation of 2 is restricted. A parallel open / close chuck 16 is fixed to the support member 13, and a pair of chuck claws 17 is fixed to the parallel open / close chuck 16.

Further, the first rotating body 1 is further provided with a block 2
1, 22 are fixed to the opposite surfaces, and the rack 1 described above
9. When the first rotating body 1 is rotationally driven by the pinion 20, the rotation range is such that the block 22 is in contact with the shock absorbing device 24 and the block 21 is in contact with the stopper 23 provided on the base 100. It is configured to be regulated by.

The operation of the component mounting apparatus having the configuration described above is as follows.
In FIG. 1, first, the air cylinder 18 is driven, the rack 19 is projected, the first rotary body 1 is rotationally driven, and the second rotary body 4 is moved to the illustrated standby position.
The block 21 and the stopper 23 are brought into contact with each other. At this position, the component W is supplied to the pair of chuck claws 17 by the supply device (not shown), and the pair of chuck claws 17 are closed to grip the work.

Next, by driving the air cylinder 18 by the stroke S, the first rotating body 1 and the second rotating body 4 are moved to the pins 7 and 8.
The rotation starts in the counterclockwise direction while maintaining the contact state. As the rotation progresses, the cam follower 25 provided on the second rotating body 4 comes into contact with the circular arc surface 26a of the semi-circular plate 26, and the first rotating body 1 and the first rotating body 1 by the tension spring 6 described above. As a result of the release of the integrated state of the two rotating bodies 4, the second rotating body 4 resists the tension of the tension spring 6 and moves to the first position.
The rotary displacement is gradually made away from the rotary body 1. As the rotational displacement gradually progresses, the locus of the component W changes from a circular locus around the shaft body 3 of the first rotating body 1 to a linear locus as shown in the figure. It becomes a locus that moves vertically, and the component W is smoothly inserted and mounted in the through hole formed in the substrate.

When it is desired to change the mounting direction of the component gripped by the chuck claw 17, the rotary actuator 11 is driven while the air cylinder 18 is operating to change the direction of the component gripped by the chuck claw 17. Can be changed. After that, the gripping by the parallel open / close chuck claw 17 is released, the air cylinder 18 is driven to return to the position shown by the solid line, and the same operation is repeated thereafter.

As described above, according to the present embodiment, it is possible to pass the part W through a desired locus by using only one drive source composed of the air cylinder 18, so that a particularly large number of parts W can be passed. Disposing the component mounting apparatuses for different components W one by one is very effective in reducing the overall cost. In addition, since a straight line trajectory can be formed immediately before the component W is inserted into a through hole of the substrate, etc., component insertion can be performed while preventing interference with components provided around the component W. Can automatically mount components.

[0021]

As described above, according to the present invention, 1
A component mounting apparatus capable of performing a predetermined component mounting operation using only one driving unit can be configured at low cost.

[Brief description of drawings]

FIG. 1 is a schematic front view of a component mounting apparatus according to an embodiment,
It is a figure which served as the description of operation.

FIG. 2 is an actual front view of FIG.

FIG. 3 is a front view of driving means for the first rotating body 1.

4 is a cross-sectional view taken along the line AA of FIG.

FIG. 5 is a cross-sectional view showing a main configuration of a second rotating body 4.

[Explanation of symbols]

 1 1st rotary body, 3 shaft body, 4 2nd rotary body, 5 shaft body, 6 tension spring, 6a, 6b hook, 7,8 pin, 11 rotary actuator, 17 chuck claw, 18 air cylinder, 19 rack, 20 Pinion, 25 cam follower, 26 semi-circular plate, 100 base, and P substrate.

Claims (2)

[Claims] 1. A component mounting apparatus for transferring a component from a supply position to a mounting position and mounting the component, wherein the component is rotatably supported by a shaft supporting portion of a base, and
A first rotating body provided with a drive means for rotating and driving the shaft supporting portion; and a first rotating body that is pivotally supported so as to rotate so that one end thereof is directed toward the first rotating body by an urging means. A second rotary body that is biased and restricted in rotation at a predetermined position, and has a gripping means that grips a component at the other end; and a cam follower that is provided near the one end portion of the second rotary body. A semi-circular plate provided on the base in an upper portion of the shaft support portion of the first rotary body, and the cam follower is rotated along with the rotation of the first rotary body by the driving means. A component mounting apparatus, characterized in that the trajectory of the gripping means is changed from a circular trajectory to a linear trajectory by guiding with a plate. 2. The drive means is a reciprocating drive cylinder disposed on the base, and a rack provided on an operating body of the cylinder and a shaft support portion of the first rotating body and a tooth provided on the rack. The component mounting apparatus according to claim 1, wherein the component mounting apparatus comprises a matching pinion.