JPS6284914A - Method of cutting automatic insertion lead wire - Google Patents

Abstract

PURPOSE:To enable lead wires of electronic parts to be cut into a shape sectional end of cut, by parallelly arranging tow cylindrical tool rests providing edges in their periphery of the axial direction and rotating the tool rests to an inner side so that the edges are opposed. CONSTITUTION:Edges 23, 24 are mounted to the periphery in the axial direction of shafts 30, 31 of cylindrical tool rests 21, 22, and the tool rests are set by providing a clearance to an extent for automatic insertion lead wires 26, 26 of an electronic part 25 to be inserted to that the edges are opposed. First the automatic insertion led wires 26, 26 of the electronic part 25 are inserted into said clearance, and if the cylindrical tool rest 21 is turned in a direction B2 B1 while the tool rest 22 is turned in a direction B3 B4, the edges 23, 24, rotating to approach each other,holds the lead wires 26, 26 to be cut. If the lead wire is cut, the electronic part 25 is taken out by turning the tool rests 21, 22 in a reverse direction to that in the above. The led wires 26, 26, whose cut end is sharply formed, can be easily inserted into a hole of a printed substrate, while a cutter, obtaining compactness, can be formed into a small size.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a method for cutting a lead wire for automatic insertion.

[Conventional technology]

In the conventional cutting method for automatic insertion lead wires, as shown in FIGS. 3 and 4, a cutter and a guide plate are moved back and forth, and the cross section of the automatic insertion lead wire is flat. The conventional example will be described with reference to FIGS. 3 and 4. FIG. 3 shows the operating state of the cutter according to the conventional example, and FIG. 4 shows a cut cross section of the automatic insertion lead wire. In Fig. 3, 10 is a cutter, and the cutter 10 consists of a tool rest 1 and a guide plate 2.
, is the lead wire. The guide plate 2 reciprocates in the A8→^ direction and the Mr.→A direction. Lead wire 5 for automatic insertion with blade 3
It cuts the. The cutting method is as follows: First, the electronic component 4 is placed between the tool rest 1 and the guide plate 2 at the height shown in FIG. Make it as follows. Next, change the turret 1 from 9 to A.
, and move the guide plate 2 in the A3→^ direction. That is, the tool rest 1 and the guide plate 2 are moved in the direction in which they approach each other, and the electronic component 4 is moved between the tool rest 1 and the guide plate 2.
The automatic insertion lead wire 5 is cut by the blade 3 of the tool rest 1 while the automatic insertion lead wire 5 is held between the two.

When the cutting is completed, move the guide plate 2 in the ^→A direction and move the tool rest 1 in the A1-A direction so that the tool rest 1 and the guide plate 2 move away from each other. .

In this case, the lead wire 5 for automatic insertion of the electronic component 4
The cut cross section 6 is a flat surface.

Further, the tool rest 1 and the guide plate 2 are located at a distance from each other when not performing a cutting action.

[Problem that the invention seeks to solve]

In the conventional cutting method as shown in FIGS. 3 and 4 of the drawings, the cutter 10 requires a large space because the turret 1 and the guide plate 2 move back and forth in such a way that they approach and move away from each other. was needed. Further, since the cut cross section 6 of the lead wire 5 for automatic insertion of the electronic component 4 is a flat surface, the lead wire 5 for automatic insertion of the electronic component 4 is automatically inserted into the hole of the printed circuit board (not shown). In some cases, it was difficult and did not go smoothly. The above-mentioned cutter 10 requires a large space, and it is difficult to insert the automatic insertion lead wire 5 into the hole of the printed circuit board, which is a disadvantage and problem.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention consists of a cutter consisting of two cylindrical tool posts, a blade is provided around the axial direction of each of the cylindrical tool posts, and these two cylindrical tool posts are provided with blades. Two cylindrical tool rests are arranged so that the blades of the tool rests face each other. Then, the lead wire for automatic insertion of electronic components is inserted into the small gap between these two cylindrical tool holders, and the blades of the two cylindrical tool holders approach each other in a direction that pinches the lead wire for automatic insertion. Rotate and cut the automatic insertion lead wire by holding it between two cylindrical blades. It is an object of the present invention to provide a cutting method in which the blades of two cylindrical tool rests are rotated in directions away from each other after cutting is completed.

〔Example〕

To explain one embodiment of the present invention with reference to the drawings, FIG.
JL) is a perspective view of the cutting method of the present invention;
(b) is the same side view, and FIG. 2 is a sectional view showing a cut of a lead wire for automatic insertion of electronic components.

In FIG. 1(a) and in FIG. 1), 20 is a cutter, and 21 and 22 are cylindrical tool rests constituting the cutter. Shafts 30 and 31 of cylindrical tool rests 21 and 22
Blades 23 and 24 are respectively attached around the axial direction of the blade.

The cylindrical tool rest 21 has directions B, -B, and B, -B,
The other cylindrical tool rest 22 rotates in the B4→B direction and the B,→B direction. Two cylindrical tool rests 21.degree. 220 blades 23 and 24 are provided so as to face each other. A gap is provided between the blades 23 and 24 to allow the lead wires 26 and 26 for automatic insertion of the electronic component 25 to be inserted therein. Next, the cutting method of the present invention will be described. First, the lead wire 26°2 for automatic insertion of the electronic component 25 will be described.
6 is inserted into the gap between the opposing blades 23.24 of the two cylindrical tool rests 21.22. And the cylindrical tool rest 21
in the direction of bird→B1, move another cylindrical tool rest 22 to B,→B
When the blades 23, 24 are rotated in the directions B, →B8 and B, →B4, respectively, the blades 23, 24 approach each other and the automatic insertion lead,
1126.26 and rotate in the direction to hold the blade 23.24.
The automatic insertion lead wires 26 and 26 are held and cut.

The cut cross section 36 of the automatic insertion lead wire 26 has a sharp point as shown in FIG.

After cutting is completed, the cylindrical tool rest 21°22
are rotated in the opposite direction to that used for cutting.

That is, the cylindrical tool rest 21 rotates in the direction B, →B, and the other cylindrical tool rest 22 rotates in the direction B, →B. As a result, the blade 23 rotates in the direction B1→B, and the blade 24 rotates in the direction B4→B, and the blades 23 and 24 rotate in the direction away from each other to take out the electronic component 24.

〔Effect of the invention〕

As explained above, in the present invention, the cutter is composed of two cylindrical tool rests, the blades are located in opposing positions, and the two cylindrical tool rests rotate so as to approach each other, thereby automatically Since the lead wire for insertion is cut, the cutter does not require a large space (the cutter can be made compact and the cutter and drive can be made smaller.Also, 1. The cut for cutting the lead wire for automatic insertion is Because it has a pointed trap, it can be smoothly inserted without difficulty when automatically inserting a lead wire for automatic insertion of electronic components into a hole in a printed circuit board, and it can also be easily inserted manually. It diminishes the effect.

[Brief explanation of drawings]

FIG. 1(1k) is a perspective view of a cutting method according to an example of the present invention, FIG. 1(b) is a side view of the same, and FIG. FIG. 3 is a perspective view of a conventional cutting method, and FIG. 4 is a cross-sectional view of an automatic insertion lead and a gland by the conventional cutting method. 20...Cutter -21.22...
・Cylindrical tool rest 23.24...Blade 25...
...Electronic components 26...Automatic insertion 9
- wires 30, 31...shaft 36...
・・・Cut Blood calligraphy Figure 1 (a) Figure 2

Claims (1)

[Claims] Two cylindrical tool rests each having a blade provided around the axial direction of the cylindrical tool rest are arranged in parallel with a small gap between them so that the blades face each other, and the small gap between the cylindrical tool rest is By inserting the lead wire for automatic insertion of electronic components into the holder and rotating the two cylindrical tool rests inward, the blades approach each other and the lead wire for automatic insertion is held between the two blades. When the automatic insertion lead wire has been cut, the two cylindrical tool rests are rotated outward from each other, and the automatic insertion lead wire is taken out. A method for cutting a lead wire for automatic insertion, characterized in that the lead wire has a sharp point.