JP2755343B2 - Material handling equipment for manufacturing electronic components - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a material handling device for manufacturing electronic components, and more particularly to a material handling device for manufacturing electronic components using a strip frame.

[0002]

2. Description of the Related Art As an electronic component using a strip frame, for example, an LED (light emitting diode) lamp, a sensor, and a capacitor are known. Hereinafter, material handling of such an electronic component will be described using an LED lamp as an example of the electronic component.

FIG. 10 is a perspective view showing an appearance of a main part of a conventionally known material handling apparatus. LED lamps
In the manufacturing process, as shown in the figure, a single lead frame 3 composed of a plurality of leads 3a and a frame 3b is handled with a plurality of head units (LED lens units) 4 provided. The head 4 has a shell shape,
The LED chip (not shown) attached to the lead 3a is sealed. When the leads 3a are separated from the frame 3b, a plurality of LED lamps can be obtained. Before that, however, it is necessary to perform material handling for aligning the lead frames 3 at equal intervals.

[0004] This material handling is performed as follows. First, as shown in FIG. 10, the head 4 is clamped by the clamper 1 which can be opened and closed in the directions of arrows m1 and m2.
FIG. 9A shows a state where the head unit 4 is clamped by the clamper 1. As shown in the figure, since the lead frame 3 extends vertically downward from the head portion 4, the pair of loading bars 5 is raised from below the lead frame 3.
(In the direction of arrow m3 in FIG. 10), the lead frame 3 is
Insert into the groove 5a from the side. This loading bar 5
Through the hole 8 provided in the pallet jig 6
(3, m4 direction), so that the position of the lead frame 3 in the clamped state matches the position of the groove 5a.

On the other hand, a pair of frame guides 7 are fixed on the pallet jig 6. Grooves 7a are formed at equal intervals in the frame guide 7, and the frame guide 7 can be moved by one pitch so that the grooves 5a and the grooves 7a are located on a straight line. Therefore, the head 4
Is released and the lead frame 3 is dropped to the bottom of the groove 5a, and then the loading bar 5 is moved downward (arrow m4).
, The lead frame 3 can be set in the grooves 7 a of the pair of frame guides 7.

Next, before setting another lead frame 3 in the groove 7a, the frame guide 7 is set together with the pallet jig 6.
Is moved forward (in the direction of arrow m5) by one pitch of the groove 7a. When the lead frames 3 are sequentially set in the grooves 7a, since the grooves 7a are formed at equal intervals, the lead frames 3 set in the respective grooves 7a are aligned at equal intervals.

[0007]

However, since the head portion 4 has an unstable shape to be clamped,
As shown in FIG. 9B, the lead frame 3 may be inclined obliquely when clamped. This causes a problem that the lead frame 3 does not enter the groove 5a of the loading bar 5. Not only the head part 4 but also various head parts not suitable for being clamped are known as head parts of electronic components using strip frames.
A similar problem arises.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and is intended for manufacturing an electronic component capable of reliably setting the lead frame in a predetermined groove regardless of the shape of the head portion. It is an object to provide a material handling device for use.

[0009]

In order to achieve the above object, a material handling apparatus according to the present invention is arranged such that a lead frame provided with a head portion is positioned downward by clamping or unclamping the head portion with a clamper. In a material handling apparatus for manufacturing an electronic component set in a predetermined groove, in a state where the head portion is clamped by the clamper, an interval smaller than the width of the head portion and larger than the thickness of the lead frame is opened. An openable and closable clamper bar is provided to sandwich the lead frame therebetween.

[0010]

According to this structure, even when the direction of the lead frame does not match the direction of the predetermined groove positioned downward when the head portion is clamped by the clamper, the clamper bar can be moved to the width of the head portion. Smaller, and in a closed state so as to sandwich the lead frame so that an interval larger than the thickness of the lead frame is opened, the unclamped head portion is supported by the clamper bar. It is in a state of hanging in the vertical direction. That is, since the lead frame is directed vertically downward by its own weight, it can be oriented to a predetermined groove located downward. Then, for example, by inserting the lead frame into the groove by a predetermined length and then dropping the lead frame by opening the clamper bar larger than the head portion, the lead frame can be set in the groove.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. The same parts as those in the conventional example (FIGS. 9 and 10) are denoted by the same reference numerals, and detailed description will be omitted.

FIGS. 1A to 1C show the positional relationship of the main parts in each operation state from the clamping of the head unit 4 to the setting to the frame guide 7. FIG. In this embodiment,
A material handling device for setting the lead frame 3 provided with the head portion 4 in the groove 5a of the loading bar 5 located downward by clamping or releasing the head portion 4 with the clamper 1; The configuration is the same as that of the conventional example shown in FIG.

The feature of this embodiment is that when the head 4 is clamped by the clamper 1 as shown in FIG. 1A, the width of the head 4 is smaller than the width 4d as shown in FIG. The openable and closable clamper bar 2 is provided so as to sandwich the lead frame 3 so as to open the space 2d which is small and larger than the thickness 3d of the lead frame 3.

FIGS. 3 to 8 are views showing the first to sixth operating states in this embodiment, as viewed from the side, respectively.
Each operation will be described based on these figures. In this embodiment, as shown in FIG. 3, five lead frames 3 can be handled simultaneously.

First, as shown in FIG. 3, the head unit 4 is clamped by the clamper 1 (first operating state). At this time,
The lead frame 3 is not on the vertical line of the groove 5a of the loading bar 5 as shown in FIGS. On the other hand, the clamper bar 2 provided below the clamper 1
(Arrows m6 to m in FIGS. 1A, 1B, 3 and 6)
(9 directions), and the opening width 2D of the clamper bar 2 in this state (FIG. 1A) is such that the lead frame 3 is tilted when the clamper 1 clamps the head portion 4. It is wider than the slant width. Therefore, FIG.
As shown in FIG. 5, all the lead frames 3 can be inserted between the pair of clamper bars 2 respectively. As shown in FIGS. 1A to 1C and 3, a groove 7 a of the frame guide 7 and a groove 5 a of the loading bar 5 are located vertically below the lead frame 3.

Next, the clamper bar 2 is moved by arrows m6 and m7.
When closed in the direction, the second operation state shown in FIG. 4 is obtained. When the clamper bar 2 is closed, the lead frame 3 is sandwiched between the clamper bars 2. However, as described above, the clamper bar 2 has a gap 2 d slightly larger than the thickness 3 d of the lead frame 3. At this time, a gap is formed between the clamper bar 2 and the lead frame 3. Therefore, as shown in FIG. 5, when the clamper 1 is opened and the head 4 is released, the lead frame 3 is released.
Falls and the head part 4 is caught by the clamper bar 2
(3rd operation state). When the clamp of the head unit 4 is released as shown in FIG. 5, the head unit 4 is hooked on the clamper bar 2, so that the lead frame 3 hangs vertically downward by its own weight. The perspective view shown in FIG.
The state at this time is shown.

As described above, even if the direction of the lead frame 3 does not match the direction of the groove 5a in a state where the head portion 4 is clamped by the clamper 1, if the clamper bar 2 is in the closed state, the clamper 1 is not closed. Since the head portion 4 unclamped from is supported by the clamper bar 2 and the lead frame 3 is suspended vertically by its own weight, the direction of the lead frame 3 is made to coincide with the direction of the groove 5a positioned vertically downward. be able to.

Next, when the loading bar 5 is lifted from below in the direction of arrow m3 (FIG. 5), the lead frame 3 is inserted into the groove 5a by a predetermined length as shown in FIG. (4th operation state). In this state, the clamper bar 2 is set to be larger than the head portion 4 and outside (arrows m8 and m9).
7), the head 4 caught on the clamper bar 2 comes off as shown in FIG.
The lead frame 3 which has been hanging down falls to the bottom of the groove 5a of the loading bar 5 (fifth operation state).

Finally, when the loading bar 5 is lowered in the direction of arrow m4, the lead frame 3 set in the groove 5a enters the groove 7a of the frame guide 7. Then, the lower end of the lead frame 3 contacts the bottom of the groove 7a,
8 and 1 when the loading bar 5 is further lowered.
As shown in (A), the lead frame 3 is set on the frame guide 7, and the loading bar 5 returns to the initial position (sixth operating state).

As described above, by hanging the lead frame 3 on the clamper bar 2 (FIG. 5), all the lead frames 3 are directed to the grooves 5a and 7a which are vertically downward. As a result, the pitch at the leading end between the lead frames becomes the same as the pitch of the grooves 5a of the loading bar 5, so that all the lead frames 3 can be reliably set in the grooves 5a and 7a (FIG. 7, FIG. 7). (FIG. 8).

[0021]

As described above, according to the present invention, in a state where the head portion is clamped by the clamper, the lead frame is formed so as to have an interval smaller than the width of the head portion and larger than the thickness of the lead frame. By opening and closing the clamper bar that can be opened and closed so as to sandwich the head, if the head is released from the clamper with the clamper bar closed, the head portion will be caught by the clamper bar,
Since the lead frame will be hanging under its own weight,
The direction of the lead frame can be adjusted to the direction in which the predetermined downward groove is located. Therefore, regardless of the shape of the head portion, the lead frame can be reliably set with the orientation of the lead frame aligned with the predetermined groove.

[Brief description of the drawings]

FIG. 1 is a side view showing a positional relationship of a main part in an operation state from clamping of a head unit to setting to a frame guide in one embodiment of the present invention.

FIG. 2 is a perspective view showing an external configuration of a main part in a third operation state in one embodiment of the present invention.

FIG. 3 is a side view schematically showing a first operation state in one embodiment of the present invention.

FIG. 4 is a side view schematically showing a second operation state in one embodiment of the present invention.

FIG. 5 is a side view schematically showing a third operation state in one embodiment of the present invention.

FIG. 6 is a side view schematically showing a fourth operation state in one embodiment of the present invention.

FIG. 7 is a side view schematically showing a fifth operation state in one embodiment of the present invention.

FIG. 8 is a side view schematically showing a sixth operation state in one embodiment of the present invention.

FIG. 9 is a side view showing a state where a head portion is clamped in a conventional example.

FIG. 10 is a perspective view showing the appearance of a main part of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Clamper 2 ... Clamper bar 3 ... Lead frame 4 ... Head part (LED lens) 5 ... Loading bar 5a ... Groove 6 ... Pallet jig 7 ... Frame guide 7a ... Groove

Claims (1)

(57) [Claims] 1. A lead frame provided with a head portion,
In a material handling apparatus for manufacturing an electronic component, which is set in a predetermined groove located downward by clamping or unclamping the head portion with a clamper, the width of the head portion in a state where the head portion is clamped by the clamper A material handling device, comprising: a clamper bar that is openable and closable so as to sandwich the lead frame so that an interval smaller than the thickness of the lead frame is opened.