JPH0547462Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The invention is applicable to electronic components, such as ceramics.
The present invention relates to a radial lead type component clamping jig suitable for clamping lead wires when manufacturing radial lead type components such as capacitors. In this specification, radial lead type components will be simply referred to as electronic components hereinafter.

[Conventional technology]

A conventional clamping jig for clamping lead wires of electronic components (for example, Japanese Utility Model Publication No. 17229/1973)
will be explained with reference to FIGS. 7 to 12.

In FIG. 7, the support member 11 has side pieces 12 and 13 formed on both sides thereof, and a folded piece 14 that is bent inward. The side piece 12 is provided with a through hole 15, and the side piece 13 is provided with a through hole 16. Furthermore, the folded piece 14 is provided with an engaging recess 17 and a notch 18 .

Furthermore, a through hole 19 is provided on the upper surface of the support member 11 .

In FIG. 8, the holding member 2 has a U-shaped cross section.
0 fits into the support member 11,
An elastic member 21 is attached to the inside of the holding member 20. The holding member 20 also includes an engaging convex portion 22.
and 23 are provided, and the engagement convex portion 22 and the engagement recess 17 of the support member 11 fit together, and the ninth
As shown in the figure, the support member 11 and the clamping member 20 are fixed. Furthermore, the engagement protrusion 23 located slightly above the engagement protrusion 22 is connected to the support member 11.
When the clamping member 20 is pushed down to insert the lead wire 25 into the through hole 15, it engages with the notch 18. At this time, lead wire 2
The support member 1
A gap 29 (see FIG. 11) exists between the holding member 1 and the holding member 20.

A lead wire 25 of an electronic component (not shown) is illustrated in FIG. The lead wire 25 is
It has an electrode connection part 26 connected to an electrode of an electronic component at the tip, and a short circuit part 27 to be cut as a final product.

In manufacturing an electronic component, as shown in FIG. 11, first, the support member 11 and the clamping member 20 are engaged with each other through the notch 18 and the engaging protrusion 23.

In this state, as shown in FIG.
A large number of lead wires 25 are attached to and 16.

Thereafter, as shown in FIG.
is pushed into the support member 11, and both are fixed by the engagement recess 17 and the engagement protrusion 22. At this time, the lead wire 25 is held between the inner upper surface of the support member 11 and the elastic member 21 of the holding member 20. An electronic component such as a ceramic capacitor, for example, is sandwiched in the electrode connection portion 26 of the lead wire 25 by an automatic machine, and this portion is soldered-dipped.

Thereafter, the short-circuit portion 27 of the lead wire 25 is cut, and the completed ceramic capacitor is extracted from the holding jig.

Next, when using the above clamping jig again,
By pressing through the through hole 19 with a jig such as an automatic machine (not shown), the notch 18 and the engaging protrusion 23 are returned to the engaged state (FIG. 11), making it easier to attach the lead wire 25. The manner of use thereafter is the same as described above.

[The problem that the idea aims to solve]

However, in the conventional example, the two lead wires 25 are parallel to the longitudinal direction of the lead wires, and the electrode connecting portions 26 of the lead wires 25 cross each other at their tips, so that only the lead wires 25 are supported by the support member. 11 and a clamping member 20. That is, the state of the electrode connection portion 26 of the lead wire 25 is as shown in FIG. 13A.

After that, as shown in FIG. 13B, when the base material 3 of the electronic component is sandwiched between the intersections of the electrode connection parts 26, even though the lead wires 25 are supported in parallel, the electrode connection parts 26 are located above and below the substrate 3 of the electronic component. For this reason, as indicated by the arrows in FIG. 13, a force is exerted on the electrode connecting portions 26 that tends to make them parallel, thereby tilting the substrate 3 of the electronic component in a twisting direction. That is, originally two lead wires 25,
The positional relationship between 25' and the substrate 3 of the electronic component should be as shown in FIG. 2, but they are soldered in the state shown in FIG. 13B.

Therefore, when electronic components manufactured in such a conventional manner are mounted in through-holes of a printed wiring board, insertion errors or attachment errors occur due to the above-mentioned twisting.

Further, when inserting the lead wire 25 from the through hole 15 to the through hole 16 on the opposite side, the lead wire 25
The short circuit portion 27, which is the tip of the short circuit portion 27, may not be inserted into the through hole 16 and may abut against the side piece 13. If the lead wire 25 is inserted by an automatic machine, the insertion cannot be repeated, so the above case will result in an insertion error.

Furthermore, the lead wire 25 is inserted into the through holes 15 and 1.
6, the holding member 20 is slightly pushed down from the support member 11 so that the lead wire 25 can be easily inserted. If such operations are repeated, the engagement recess 17 of the support member 11 or the engagement protrusion 22 of the clamping member 20 will wear out, causing problems.

This invention is intended to solve the above problems, and is a radial lead type that allows the lead wire to be attached so that the lead wire, the electrode connection part of the lead wire, and the base of the electronic component are all parallel. The purpose is to provide a component holding jig.

Another object of the present invention is to provide a radial lead type component clamping jig that eliminates mounting errors when attaching lead wires to the clamping jig.

Furthermore, the present invention provides a radial lead type component that can solve the problem by changing the orientation of either the support member or the clamping member even if the engagement recess of the support member and the engagement protrusion of the clamping member are worn out. The purpose of this invention is to provide a clamping jig.

[Means to solve the problem]

In order to achieve the above object, the radial lead type component clamping jig of the present invention has a clamping member that is bent into a substantially U-shaped cross section and has an elastic member inside the clamping member, and the clamping member is fitted into the clamping member. a support member having a through hole into which the lead wire of the radial lead type component is inserted, and the lead wire of the radial lead type component is held between the elastic member of the clamping member and the support member The lead type component holding jig is configured to provide a step in the height of the upper left and right direction of the through hole on the other side of the radial lead type component.

Further, the height difference in the upper left-right direction is configured to be equal to the thickness of the radial lead type component.

Further, the reinforcing member includes a slope portion provided in contact with a through hole on the distal end side of the lead wire of the supporting member and a vertical portion having a through hole through which the lead wire is inserted.

Further, the holding member includes a symmetrical engagement protrusion and a symmetrical engagement protrusion, and the support member includes an engagement recess that engages with the symmetrical engagement protrusion. , a left-right asymmetric notch that prevents the left-right asymmetric engagement protrusion from engaging; and a lock that engages the asymmetric engagement protrusion when the orientation of either the holding member or the support member is changed. It consists of a mating recess.

[Effect]

Insert the lead wire of the electronic component into the through hole of the support member. The through hole on the electrode connection side of the lead wire is
Since there is a step in the horizontal height that is approximately the same as the thickness of the electronic component, when the support member and the clamping member are fitted, one of the lead wires is placed at the lower corner of the through hole, and the other lead wire is placed at the lower corner of the through hole. are each held at the upper corner of the through hole.

At this time, the electrode connection part of the lead wire coming out from the higher corner of the step of the through hole is placed on the upper side of the electronic component substrate, and the electrode connection part of the lead wire coming out of the lower step corner of the through hole is placed on the top side of the electronic component substrate. , are connected to the lower side of the substrate of the electronic component by soldering, respectively. The electrode connection portion of each lead wire holds the base of the electronic component at a corresponding position.

Therefore, the two electrode connection parts of the lead wire are connected in parallel to the electronic component and are not twisted, which prevents insertion and installation errors when inserting the lead wire of the electronic component into the printed wiring board. do not have.

Further, when the lead wire is inserted into the through hole on the opposite side from the through hole, the short circuit portion at the tip of the lead wire hits the sloped portion of the reinforcing portion and slides upward to be inserted into the through hole. With this configuration, re-insertion or insertion errors can be prevented.

Furthermore, when inserting the lead wire into the through hole,
Push the holding member down a little from the support member to make it easier to insert the lead wire. By repeating such operations, the engagement recess 1 of the support member 11
7 or the problem that the engaging convex portion 22 of the clamping member 20 is worn out can be solved by changing the orientation of either one of the two.

〔Example〕

An embodiment of the present invention will be described with reference to FIGS. 1 to 5. In the embodiment of the present invention, parts that are the same as those in the prior art example are omitted, and different parts are shown enlarged.

The difference between the present invention and the conventional example is the shape of the through hole 1 on the electronic component side. That is, as shown in FIG. 1, the component-side through-hole 1 has a step difference in height between the left and right upper corners. Therefore, the lead wire from the bottom of the electronic component base 3 is connected to the electronic component base 3 from the lower corner of the through hole 1 on the electronic component side.
The lead wire from above is connected to the through hole 1 on the electronic component side.
Each one comes out from the higher corner of the.

As a result of shaping the through-hole 1 on the electronic component side as described above, the electrode connection portion 26 of the lead wire 25 becomes parallel to the substrate 3 of the electronic component, as shown in FIG. 2, and is soldered in a twisted state. Not attached. Note that FIG. 3 shows a top view of FIG. 1, and a reinforcing recess 28 is provided to reinforce the support member 11.

Further, as the shape of the through hole 1 on the electronic component side, other shapes as shown in FIGS. 4C to 4E are conceivable.

The illustration in FIG. 4B shows the aforementioned through hole 1, and the one shown in FIG. show.

The through hole 1 shown in FIG. 4C has convex holes of different heights, and can also restrict the left-right movement of the lead wire 25.

The through hole 1 shown in FIG. 4D has a substantially L-shape, and its height changes in the left-right direction.

The through hole 1 shown in FIG. 4E has a chevron shape with different heights.

Furthermore, referring to FIG. 5, the reinforcing portion of the support member 11 in the present invention will be explained. In FIG. 5, an inclined portion 5 is provided on the side piece 12 side of the support member 11.
and a vertical portion 5' having a through hole 2'. The position of the through hole 2' in the reinforcing member 4 substantially coincides with the position of the through hole 2 in the support member 11.

With such a configuration, the support member 11 and the clamping member 2 are
0 can be prevented from loosening. Further, when the lead wire 25 is inserted from the through hole 1 of the support member 11 toward the through hole 2 with the holding member 20 pushed down from the support member 11, the short-circuited portion 27 at the tip of the lead wire 25 Even if the reinforcing member 4 is inserted with a slight bend, the short-circuit portion 27 abuts against the inclined portion 5 of the reinforcing member 4 and is inserted into the upper through hole 2 along the inclination.

Therefore, by providing the reinforcing member 4 of the present invention, the lead wire 25 can be reliably inserted from the through hole 1 to the through hole 2 of the insertion support member 11 without getting caught inside the support member 11. Not only this, but also the loosening of the fitting between the supporting member 11 and the holding member 20 can be prevented at the same time.

Further, FIG. 6A shows an engaging recess and a notch in the folded piece 14 of the support member 11. Further, FIG. 6B shows an engagement convex portion of the holding member 20 that engages with an engagement recess or notch of the support member 11.

The arrangement of the engaging recesses and notches A to D in the support member 11 or the engaging protrusions A' to D' in the clamping member 20 is as shown in FIGS. 6 a to d.
It's becoming like this. That is, the engagement recess I and the engagement protrusion I' are located at symmetrical positions a from the end.
Engagement recesses B and C and engagement protrusions B' and C'
are at asymmetric distances b to c from the end. Furthermore, the notches E and F that engage with the engaging convex portions B' and C' are located asymmetrically.

Furthermore, the support member 11 has a notch 1 shown in FIG.
A notch corresponding to 8 is also provided on the clamping member 20.
Engagement protrusion 2' corresponding to the engagement protrusion 23 shown in FIG.
are provided at positions d from each end.

Initially, the support member 11 and the clamping member 20 are fitted into each engagement recess I and engagement recess I'. At this time,
The engaging protrusions B' and C' do not fit into the notches E and F. When the engaging convex portion A' becomes worn, the direction of either the supporting member 11 or the holding member 20 is changed. As a result, the engaging protrusions B' and C' fit into the engaging recesses B and C.

Note that the engaging convex portion N' and the notch are used in the same manner as in the conventional case.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments. Various design changes can be made without departing from the scope of the present invention as described in the claims of the utility model registration.

For example, it goes without saying that the supporting member and the clamping member can be made of metal or resin, and that the shapes of the through hole, the supporting member, the clamping member, the reinforcing member, the engaging recess or the engaging protrusion can be changed.

[Effect of idea]

According to the present invention, since the horizontal height of the through hole on the substrate side of the electronic component is provided with a step approximately equal to the thickness of the electronic component, the two electrode connection parts of the lead wire are parallel to the electronic component. Since the electronic component and the connecting portion of the lead wire are not twisted, the lead wire of the electronic component can be reliably inserted into the printed wiring board.

In addition, a reinforcing member consisting of an inclined part and a vertical part having a through hole is provided on the side of the short-circuit part of the lead wire in the support member, thereby preventing loosening of the fit between the support member and the clamping member and ensuring the securement of the lead wire. and insertion at the same time.

Furthermore, even if the engaging recesses or protrusions of the support member or the clamping member wear out, the life of the clamping jig can be extended by simply changing the orientation of any one of the above.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram of the through hole on the electronic component side in the present invention, Figure 2 is an explanatory diagram of the lead wire clamping state in the present invention, Figure 3 is a top view of the electronic component clamping jig in the present invention, and Figure 4 is the main body. FIG. 5 is a sectional view of the electronic component holding jig in the invention, FIG. 6 is an illustration of the engagement between the support member and the holding member in the invention, and FIG. 7 is the conventional one. FIG. 8 is an explanatory diagram of the holding member in the conventional example, FIG. 9 is an explanatory diagram of the electronic component holding jig in the conventional example, FIG. 10 is an explanatory diagram of the lead wire, and FIG. 11 is an explanatory diagram of the electronic component. FIG. 12 is a cross-sectional view of an electronic component being held in place, and FIG. 13 is an explanatory diagram of a lead wire being held in a conventional example. 1... Through hole, 2... Through hole, 3... Electronic component base, 4... Reinforcement member, 5... Inclined part, 5'...
Vertical portion, 16...Folding piece, 11...Supporting member, 20...Pinching member, 25...Lead wire, A~C...Engagement recess, Hole...Notch, A'~D'...
...Engagement convex portion.

Claims (1)

[Claims for Utility Model Registration] (1) A clamping member 20 having an elastic member 21 on the inside of a bent member having a substantially U-shaped cross section, and the clamping member 20 fitted together to form a lead of a radial lead type component. It consists of a support member 11 having through holes 1 and 2 into which the wire 25 is inserted, and the holding member 20
A radial lead type component clamping jig that clamps a lead wire 25 of a radial lead type component between an elastic member 21 and a support member 11, the through hole 1 on the other side of the radial lead type component. A radial lead type component holding jig characterized by having a step in the height of the upper left and right sides. (2) The radial lead type component clamping jig according to claim 1, wherein the step provided in the height in the left and right direction of the upper part is equal to the thickness of the radial lead type component. (3) It consists of a vertical part 5' having an inclined part 5 provided in contact with the through hole 2 on the short circuit side of the lead wire 25 of the support member 11 and a through hole 2' through which the lead wire 25 is inserted. The radial lead type component holding jig according to claim 1, further comprising a reinforcing member (4). (4) The holding member 20 is provided with a symmetrical engagement protrusion A' and asymmetrical engagement protrusions B' and C'; The holding member 20 or the support is inserted into the asymmetrical notch portion that prevents the asymmetrical engagement protrusions B' and C' from engaging with the engagement recess A that engages with the protrusion A'. When the direction of one of the members 11 is changed, the asymmetrical engagement protrusion B',
2. The radial lead type component clamping jig according to claim 1, further comprising engaging recesses B and C that engage with C'.