JP2650331B2 - Electronic component positioning method - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for setting a positional relationship between a component supply unit and an insertion head unit in an automatic electronic component insertion machine.

2. Description of the Related Art In an automatic electronic component insertion machine, there are roughly two types of electronic component supply methods. That is, one is a random access method in which the component supply unit itself moves according to the insertion order of the electronic components and delivers the electronic components to the insertion head unit side, and the electronic components are rearranged in the insertion order by a separate sequencer machine, There are two types of sequence systems in which the component is supplied to the insertion head through the fixed component supply unit.

Hereinafter, the positioning of the random access type electronic component will be described with reference to the drawings.

In FIG. 2, an electronic component 10 that has been axially taped is set in a parts cassette 11, and an insertion head section is provided.
They are sent one by one in order to be delivered to 12. The parts cassette 11 is supported by a parts supply table 13. Further, in FIG. 3, the component supply table 13 is provided with a rack and a pinion.
The electronic component 10 can be moved in the lead axis direction by a drive motor 15 via 14. Further, in FIG. 4 (a), the taped electronic component 10 is held so that the inside of the tape is regulated by the feed wheel 16 of the parts cassette 11, and a similar parts cassette is placed on the parts supply table 13. As shown in FIG. 2, a plurality of electronic components 10 are arranged at equal intervals in the same lead axis direction. The positional relationship between the insertion head section 12 and the component supply section 28 is such that the center line 18 of the insertion unit 17 of the insertion head section 12 and the center line 19 of the parts cassette 11 of the component supply section 28 are coaxial as shown in FIG. When the electronic parts 21 of the adjacent parts cassette 20 are inserted, the parts supply table 13 moves by the arrangement interval of the parts cassettes,
At the end of the movement, the center line 22 of the parts cassette 11 and the center line 18 of the insertion unit 17 are coaxial.

Next, the operation of the insertion unit 17 will be described with reference to FIG.
The insertion unit 17 is normally positioned perpendicular to the printed circuit board as shown in FIG. 6 (a), but when the electronic component 10 is delivered from the parts cassette 11 as shown in FIG. 6 (c). Rotate 90 degrees to be parallel to the substrate 23. FIG. 5 is a plan view showing the state at that time. The electronic component support component 24 of the insertion unit 17 linearly supports the lead wire of the electronic component in such a manner as to escape the body of the electronic component 10. Then, cut the lead wire of the insertion unit.
After the molding unit 25 operates and disconnects the electronic component from the taping, the insertion unit 17 returns to the state shown in FIG.

However, when the insertion unit 17 transfers the electronic component 10 from the parts cassette 11, the electronic component support component 24 may interfere with the electronic component body 21 as shown in FIG. 4b. is there. This is because the centering line 26 of the electronic component body does not match the centerline 19 of the parts cassette 11 due to the variation in the manufacturing accuracy of the taping itself, and consequently does not match the centerline 18 of the insertion unit 17. Therefore, the electronic component supporting component 24 and the body of the electronic component 10 cause interference. In particular, in high-density mounting, which has been increasing in demand in recent years, in order to bend near the end of the electronic component body, the electronic component supporting component 24 as shown in FIG.
The distance between the electronic component 10 and the body is becoming small. Also, the taping accuracy of electronic components varies depending on the manufacturer, the product type, or the production lot among the product types.

Means for Solving the Problems In order to solve the above problems, in the present invention, the distance between the electronic component support component and the electronic component body is input by a visual device, and the distance and the distance input from the visual device are predicted in advance. An image processing apparatus calculates an interval difference from a set predetermined interval distance, and a movable component supply unit having a drive unit moves the interval difference.

Operation The operation will be described below.

When transferring an electronic component from the component supply unit to the insertion head unit, the electronic component support component supports a lead wire portion of the electronic component to be transferred. At this time, the distance between the electronic component supporting component and the electronic component body is input by a visual device.
The difference between the input distance and the distance between the electronic component supporting component and the electronic component body, which is required for bending and forming the electronic component in advance, is determined by an image processing device. Calculate, correct the distance of the interval difference, and move the component supply unit.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

As shown in FIG.
The visual device 27 is mounted above the transfer section of the electronic component 10 to 17. Then, in a state where the insertion unit 17 is parallel to the printed circuit board, the electronic component as shown in FIG.
10 body and the spacing distance l ₂ between the electronic component supporting part 24 of the inputs at the visual device 27. Distance difference when the predetermined gap distance l ₁ of pre Ji because setting, the distance l ₂ entered previously (l ₁ -
l ₂ ) is calculated by the image processing apparatus, and this interval difference (l ₁ −l ₂ ) is calculated.
The component supply unit 17 moves by a distance of 1/2 of
As in the state of FIG. (A), on both sides of the body of the electronic component 10, and is to distance l ₁ can be taken by the electronic component supporting part 24. This is shown in the flowchart of FIG. The position correction of the component supply unit can be performed each time the electronic component is delivered, and once corrected, the same correction amount can be applied to the same taping component.

In the sequence-type component supply mode, if a drive for position correction is provided in the component supply unit, positioning at the time of delivery of the electronic component can be easily performed.

Effects of the Invention As described above, according to the present invention, the distance between the electronic component supporting component of the insertion head and the end of the electronic component body is input by the visual device, and the image processing device calculates the distance between the electronic device support component and the input device from the visual device. The gap difference between the electronic component supporting part and the electronic component supporting component is calculated even if there is a variation in the taping accuracy of the electronic component by calculating the gap difference from the predetermined interval distance set in advance and correcting the gap difference by the component supply unit. The lead wire of the electronic component can always be supported correctly without interference with the component body.

[Brief description of the drawings]

1 is a side view of one embodiment of the present invention, FIG. 2 is an explanatory diagram of an insertion head unit and a component supply unit, FIG. 3 is an explanatory diagram of a component supply unit driving unit, and FIG. 4 is an electronic component and parts. FIG. 5 is a diagram showing the relationship between the cassette and the electronic component supporting parts, FIG. 5 is a diagram showing the relationship between the insertion unit and the parts cassette, FIG. 6 is an explanatory diagram of the operation of the insertion unit, and FIG. 7 is a flowchart showing the operation of the present invention. 10: electronic parts, 11: parts cassette, 12: insertion head part, 17: insertion unit, 24: electronic parts supporting parts, 27: visual device.

 ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-59-158598 (JP, A) JP-A-60-68698 (JP, A) JP-A-62-45146 (JP, A)

Claims (1)

(57) [Claims] 1. A method of positioning an electronic component when delivering it from a component supply unit of an axial type electronic component to an insertion head unit, wherein a distance between an electronic component support component of the insertion head unit and one end of the electronic component body is visually determined. An image processing device calculates an interval difference between the interval distance input from the visual device and a predetermined interval distance set in advance by an image processing device, and includes a driving unit and a movable component supply unit. Moving the gap difference and freely changing the position of the electronic component to be delivered to the insertion head section.