JPS583295Y2 - Lead correction jig - Google Patents

Description

[Detailed explanation of the invention] This invention is applicable to, for example, the leads (legs) of power transistors.
This article relates to a jig for correcting.

Conventionally, power transistors, resistors, capacitors, and other circuit components were attached by hand to the board, heat sink, etc., so bending the leads did not pose much of a problem.

However, in recent years, in order to save labor, these assembly operations have been automated, and due to this automation, bending of the leads has become a problem when inserting transistors, resistors, capacitors, etc. into holes at predetermined positions on the board. , it became necessary to correct it.

An object of the present invention is to provide a lead straightening jig that can easily straighten the bent leads of circuit components such as transistors, resistors, and capacitors.

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

This embodiment describes a jig for straightening the leads of a power transistor. In FIGS. 1 and 2, a first base plate 1 and a second base plate 2 are opposed to each other in the longitudinal direction. The pedestal 31ζ is screwed with the surfaces in contact with each other.

As shown in FIGS. 3 and 4, the first base plate 1 is
Two lead insertion holes 4 are drilled to match the lead spacing of the power transistor to be processed.

The angular positions at which the lead insertion holes 4 are bored are the angles α (in this embodiment, 45□ be.

), and holes are drilled at the positions of the lead insertion holes 4 in each of the counters at an angle β with respect to the axis Zl perpendicular to the surface of the base plate 1.

The insertion opening 4a of this hole 4 is formed in a bowl shape to facilitate lead insertion.
In b, an escape hole is formed.

Further, on an axis Y that is perpendicular to the axis X and passes through the center between the lead insertion holes 4 on the axis X, holes 5 are bored at intervals such that the lead insertion holes 4 are interposed therebetween. .

A knockout pin 7 is loosely fitted into each of the holes 5 via a spring 6.

A hole 8 is bored in the outer side of the hole 5, and a positioning pin 9 for positioning the workpiece by means of the mounting hole is firmly press-fitted therein.

The tip ends of these positioning pins 9 are tapered so that they can be easily inserted into the mounting holes of the workpiece.

The second base plate 2 is similar to the first base plate 1 (in other words, a knockout pin 7 is inserted into the hole 51 in a loose manner through the spring 6, and a positioning pin 9 is inserted into the second base plate 2).
is firmly press-fitted into hole 8.

Further, the hole position of the lead insertion hole 10 is parallel to the first base plate 1, but the hole is drilled in the opposite direction to this first plywood 1, that is, in the direction in which the directions of the respective lead insertion holes 10 intersect. There is.

The angle is the same angle α with respect to the axis 4
The hole is drilled at the opposite angle γ.

Note that the angle γ is smaller than the angle β.

In other words, the angle takes into account springback.

Next, to explain the first operation, the lead of the power transistor, which is the workpiece, is inserted into the lead insertion hole 4 of the first base plate 1 (while inserting the lead, the mounting hole of the power transistor is fitted into the positioning pin 9.

A bend in the lead can be corrected by inserting it into the lead insertion hole by inserting it into the lead insertion hole.

Function of knockout bin 7) First base plate 1
The workpiece is pulled out from the base plate 1, and similarly inserted into the lead insertion hole 10 of the second base plate 2, and the lead is bent in the opposite direction at an angle smaller than that of the first base plate 1.

That is, one lead is bent twice in different directions, and one
The first bend is made larger, the second bend is made smaller, and the bending is damped.

Therefore, the effect of the knockout bottle 7 is 7Jll.
When the workpiece is removed from the second base plate 2, the lead is corrected to a predetermined position (straight) by the action of springback.

The present invention consists of a first base plate, a lead insertion hole drilled at a predetermined angle, and a lead inserted in a predetermined direction from the first base plate.
Bend the lead, then insert the lead into the lead insertion hole drilled at a predetermined angle in the opposite direction of the first plate, then insert the lead in the predetermined direction. What you can do: 1) Use a jig to straighten the bend in the lead in two directions (1) straighten the bend, and attenuate the bend; 1) straighten the lead easily and reliably.

It is also possible to correct the lead in any direction by changing the angle of the hole direction in the first plywood and the second plywood.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view showing one embodiment of the present invention;
The figure is a plan sectional view taken along line A-A in Figure 1, Figures 3 and 5 are front views showing the first base plate and second plywood, and Figures 4 and 6 are main parts. FIG. 1...First plywood, 2...Second base plate, 4°10...Lead pervert hole.

Claims (1)

[Scope of utility model registration request] A first plywood board having lead insertion holes drilled at respective angles to one axis on a plane and an axis perpendicular to the plane; and a hole for the lead insertion hole. a second plywood board having a lead insertion hole drilled in an opposite force direction and at at least the same angle to one axis on the plane, and at an angle less than one axis perpendicular to the plane; A lead correction jig comprising: