JPH11340684A - Operating equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve operation efficiency of operating equipment which mounts an electronic component on an electronic circuit board, by positioning operation heads on the both sides of a single beam. SOLUTION: Two pairs of linear servo motors 21 are provided in operating equipment 40 to provide two beams. For the one beam 41, an operation head 27 for a first component supplying part 14 is arranged, and for the other beam 42, an operation head 28 for a second component supplying part 15 is arranged. With this configuration, while one operation head is picking up a component, measuring a component positional deviating or mounting a component, the other operation head can perform the same operation or other operation, thereby improving the operation efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work head, a beam, and a beam support. The work head is attached to the beam so as to be movable in the length direction of the beam. The present invention relates to a working device in which a working head takes out and transports an electronic component from a component supply device, and mounts the electronic component on an electronic circuit board.

[0002]

2. Description of the Related Art Conventionally, a work head, a beam, and a beam support are provided, and the work head is mounted on the beam so as to be movable in the length direction of the beam, and the beam itself is arranged in a direction perpendicular to the length direction. The work head takes out and transports the electronic components from the component supply device, and the work head is mounted on only one side of a single beam. Was provided.

[0003]

However, in the prior art, it is considered that a plurality of working heads are provided in order to convey many components by one movement from the beam component supply device to the electronic circuit board. Can be At this time, if the work head is provided only on one side of the beam, the work heads are arranged in the longitudinal direction of the beam, so one of the work heads sucks the component from the outermost component supply device, or When mounting components, the other work head may be located outside the work head, so that it is necessary to increase the movable range of the head or there is a range in which one head cannot move. .

Further, when component supply units are arranged on both sides of the substrate in the beam moving direction, even if the head and the beam do not enter deeply into the upper part of the component supply unit arranged on one side, the component supply units are arranged. Although the suction can be performed, the head and the beam must go deeply into the other component supply unit to suction the component, and the shape of the component supply device must be adapted.

Accordingly, an object of the present invention is to reduce the space in the longitudinal direction of a beam occupied by a working head and to cope with a case where component supply units are arranged on both sides of a substrate.

[0006]

SUMMARY OF THE INVENTION A work head, a beam, and a beam support are provided.
Along with mounting so that it can move in the length direction of the beam,
The beam itself, which is supported so that it can move in a direction perpendicular to its length direction, the work head takes out and transports electronic components from a component supply device arranged in the component supply section in the beam length direction, In a working device mounted on an electronic circuit board, the working head is positioned on both sides of a single beam.

By doing so, a plurality of working heads can be provided on the beam while keeping the space in the length direction of the beam occupied by the working head small.

Preferably, the component supply unit is disposed on both sides of the substrate in the beam moving direction.

In this manner, the components can be sucked without both heads penetrating deeply in the upper part of the component supply device.

[0010]

1 to 3 show a first embodiment. The work device 10 performs a work of mounting an electronic component on an electronic circuit board, has a base 11, and arranges various components on a table portion 12 on an upper surface thereof.
That is, 13 is a conveyor passing through the center of the table section 12,
Reference numeral 14 denotes a first component supply unit disposed on one side of the conveyor 13, and reference numeral 15 denotes a second component supply unit disposed on the opposite side of the conveyor 13. The conveyor 13 plays a role of sending and sending out the electronic circuit board 1 and positioning the electronic circuit board 1 at a working position. The first component supply unit 14 includes a plurality of component supply devices 16 arranged in a horizontal row. Each of the component supply devices 16 is of a type that supplies components using component tapes containing components at a fixed pitch, but this type of supply device has many literature examples (eg, US Pat. No. 4,733).
No. 5,341), which are well known and will not be described in detail. The second component supply unit 15 also includes a plurality of component supply devices 1.
7 are arranged in one horizontal row along the feeding direction of the conveyor 13. The component supply device 17 is for feeding components from an inclined stick-shaped magazine, and is also introduced variously in the literature (eg, US Pat. No. 4,731,923).
), And detailed description is omitted.

At both ends of the table section 12, support beams 20 extending horizontally and perpendicular to the conveyor 13 are installed at a predetermined height from the table surface. The support beams 20 are parallel to each other, and a linear servomotor 21
Is fixed. As the linear servo motor, a motor sold by NSK Ltd. under the trade name "NSK Mega Thrust Motor" can be used. Regarding the control of a linear servomotor, see US Pat.
No. 792, the present invention follows this. Now, the end of the beam 23 is fixed to the slider 22 of the linear servomotor 21. That is, both ends of the beam 23 are supported by the sliders 22 of the pair of linear servomotors 21,
It moves with the movement of the slider 22. As a matter of course, the beam 23 must be translated in a fixed angle, and the linear servomotors 21 on both sides must be controlled so that such a movement occurs. The direction of the movement is perpendicular to the length direction of the beam 23 or the substrate feeding direction of the conveyor 13, and in this case, this is defined as the Y direction.
A linear servomotor 24 is fixed to the lower surface of the beam 23, and a head mount 26 is fixed to the slider 25. The head mount 26 has a shape hanging from the linear servo motor 24, but there is no problem since the slider 25 has a structure capable of withstanding a load in this direction. Working heads 27 and 28 are attached to the head mount 26 so as to be located on both sides of the beam 23. When the slider 25 moves, the working heads 27 and 28
Move in the length direction. This is the X direction. Each of the working heads 27 and 28 has a vacuum suction nozzle 29, which gives a height displacement (displacement in the Z direction) to this by a built-in air cylinder or a linear servomotor (not shown). (Not shown) gives an angular displacement (theta displacement) around the Z direction. 30, 3 in the figure
1 is between the first component supply unit 14 and the conveyor 13 and the second
The camera disposed between the component supply unit 15 and the conveyor 13 constitutes a part of a visual recognition device that measures the amount of component displacement.

The operation of the working device 10 is as follows. First, the conveyor 13 carries the electronic circuit board 1 from one side and positions it at a predetermined position. An adhesive has already been applied to portions of the substrate 1 where components are to be mounted. Here, the linear servo motors 21 and 24 operate and the beam 2
A motion in the Y direction is given to 3 and a motion in the X direction is given to the head mount 26, and the vacuum suction nozzle 29 is positioned above a predetermined component supply device. The work head 27 is assigned to the first component supply unit 14 and lowers the vacuum suction nozzle 29 toward the selected component supply device 16 to pick up components. After the parts are picked up, the work head 27 is positioned on the camera 30 to measure the amount of positional deviation of the parts. After correcting the amount of movement in the X and Y directions and the angle in the theta direction based on the measurement result, the components are mounted on the electronic circuit board 1. When it becomes necessary to take out a component from the second component supply unit 15, the work head 28 is moved onto the target component supply device 17. Then, the component is picked up, the amount of displacement of the component is measured by the camera 31, the necessary correction is performed, and the component is mounted on the electronic circuit board 1. When the scheduled component mounting operation is completed, the conveyor 13 sends out the processed substrate and receives a new substrate.

FIGS. 4 and 5 show a second embodiment. The same reference numerals are given to the same components as those in the first embodiment, and the description is omitted.
In this embodiment, the working device 40 is provided with two pairs of linear servomotors 21 so that the number of beams is two. The work head 27 for the first component supply unit 14 is arranged on one beam 41, and the work head 28 for the second component supply unit 15 is arranged on the other beam 42. According to this configuration, while one of the work heads is performing any of the work of component pick-up, measurement of the component position shift amount, and the work of mounting the component, the other work head also performs the same work or a different work, thereby improving operating efficiency. Can be increased.

FIGS. 6 and 7 show a third embodiment. The working device 50 of this embodiment utilizes the fact that a single linear servomotor can drive a plurality of sliders independently, and two linear servomotors 21 and 24 each
2, 25 were arranged. The number of beams was two, and the number of head mounts supported by one beam was also two. The beams 51 are used as working heads 53, 54 for the first component supply unit 14.
And the beam 52 has working heads 55 and 56 for the second component supply unit 15. Thereby, the beams 51, 52
, And each of the work heads 53, 54, 55, 56 are independently driven, so that more efficient work can be performed.

In the above description, only the component mounting head provided with the vacuum suction nozzle has been described as the working head, but the type of the working head is not limited to this. It is possible to mount a camera or an adhesive dispenser that recognizes a position mark or a circuit pattern on an electronic circuit board, a bad mark for instructing work prohibition (particularly in the case of a split board), or the like. Also, a plurality of types of work heads (for example, a component mounting head and a recognition head) can be combined with a single head mount.

[0016]

As described above, according to the present invention, since the working head is located on both sides of a single beam, a plurality of working heads are kept while keeping the space in the longitudinal direction of the beam occupied by the working head small. A head can be provided on the beam.

Further, since the component supply units are disposed on both sides of the substrate in the beam moving direction and the working heads are located on both sides of the single beam, both heads are deeply located above the component supply device. Parts can be sucked without entering, reducing the restrictions on the shape of the parts supply device,
By setting the work head closer to each component supply unit to mount components in a range of the substrate close to the component supply unit, the moving distance of the beam can be reduced and the component mounting speed can be increased. In addition, if a plurality of beams are provided, it is necessary to perform control in consideration of interference between beams. However, if only one beam is provided, it is not necessary to consider interference.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of a working device.

FIG. 2 is a front view of a beam unit of the working device of FIG. 1;

FIG. 3 is a sectional view of a beam part of the working device of FIG. 1;

FIG. 4 is a perspective view showing a second embodiment of the working device.

FIG. 5 is a front view of two (two) beam portions of the working device of FIG. 4;

FIG. 6 is a perspective view showing a third embodiment of the working device.

FIG. 7 is a front view of two beam portions of the working device of FIG. 6;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 electronic circuit board 10 working device 40 working device 50 working device 27 working head 28 working head 53 working head 54 working head 55 working head 56 working head 23 beam 41 beam 42 beam 51 beam 52 beam 20 support beam (supporting beam) 21 linear servo motor 24 linear servo motor 22 slider 25 slider

Claims (2)

[Claims] 1. A work head, a beam, and a support for a beam, wherein the work head is attached to the beam so as to be movable in the length direction of the beam, and the beam itself is moved in a direction orthogonal to the length direction. A work head that picks up and transports electronic components from a component supply device arranged in a length direction of a beam in a component supply unit, and conveys the electronic components to the electronic circuit board; A working device, which is located on both sides of a single said beam. 2. The working device according to claim 1, wherein the component supply units are arranged on both sides of the substrate in the moving direction of the beam.