JPH0325428Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a soldering jig used for attaching electronic components to a printed board by soldering.

[Conventional technology]

Conventionally, specially constructed soldering jigs have been used to efficiently solder electronic components to printed circuit boards. Soldering using this conventional soldering jig involves, for example, holding a printed board in a holder, then inserting the lead terminal of an electronic component into a hole such as a through hole, and then attaching the lead terminal to the back side of the printed board. In addition to bending the printed board to prevent it from falling off, the printed board was flipped horizontally, soldered to the circuit pattern on the back side, and the remaining lead terminals were cut off.

[Problem that the invention attempts to solve]

Conventional soldering jigs are constructed as described above, so the printed board is held in the holder, the lead terminals of the electronic components are inserted into the holes in the printed board, and then the component holder is tilted down to hold down the head of the electronic component. The holder is reversed and soldered, and after soldering, the holder is returned and reversed, the component holder is raised, and the printed circuit board is removed from the holder, which involves many complicated manual work steps. This resulted in problems such as extremely poor soldering efficiency.

This idea was made to solve the problems mentioned above, and it eliminates the need for individual operations for reversing and re-setting the holder, making it possible to carry out soldering work efficiently, as well as being simple in structure and easy to handle. The purpose of the present invention is to obtain a soldering jig that facilitates soldering.

[Means for solving problems]

The soldering jig according to this invention includes a soldering nest and a jig base, and the soldering nest has a detachable hook at one end and a torsion spring at the other end for rotation in the closing direction. The jig base has a component holder that is biased to open the component holder when engaged with the hook, and is urged to open the component holder while disengaging from the hook, and presses the component holder closed while disengaging the soldering nest. The soldering nest is supported in a reversible manner, and the soldering nest is held by a magnet during the reversal.

[Effect]

In the soldering nest of this invention, when a printed circuit board with electronic components is mounted and the hook is removed, the component holder automatically closes due to the repulsive force of the torsion spring. is pressed down on the head of the electronic component, and then the soldering nest is reversed on the jig base, and this reversed state is held by the magnet, so that the lead terminal of the electronic component is attached to the printed circuit board. The circuit pattern can be soldered, and after soldering, the soldering nest can be returned and reversed, the hook can be engaged with the jig base, and the soldered printed board can be taken out by simply opening the component holder. Do it like this.

〔Example〕

An embodiment of this invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a soldering nest consisting of a substantially U-shaped plate, with a hook 2 attached to one end and a component holder 4 at the other end which is biased to rotate in the closing direction by a torsion spring 3. is provided. As shown in FIGS. 2 and 3, the hook 2 is biased by a spring 6 housed in a notch 5 at one end in a direction to lock the soldering nest 1 in the soldering jig. Further, the component holder 4 is supported by a bracket 7 at the other end via a shaft 8 so as to be openable and closable. Reference numeral 9 denotes a lever plate arranged in parallel with the component holder 4 on the side of the bracket 7. Incidentally, the torsion spring 3 always urges the component holder 4 in the direction of closing it toward the soldering nest 1 side. The component holder 4 is made of a magnetic plate 4a such as an iron plate and a cushion member 4b such as a foamed color foam.

10 is a rod-shaped handle protruding from both sides of the soldering nest 1; 11 is a guide piece that guides and holds the printed board 12 fixed to both ends of the soldering nest 1; 13 is a mounting plate for through-holes in the printed board 12, etc. The electronic component 14 has a lead terminal inserted into the hole, and numeral 14 is a support shaft protruding near the center of both sides of the soldering nest 1.

On the other hand, 15 is a jig base consisting of a square frame-shaped plate;
16 and 17 are bearings provided at the top of both ends of this jig base 15, and the bearings 16 and 17 are attached to the soldering nest 1.
The shaft 14 is rotatably supported. As shown in FIG. 4, the bearing 17 includes a spherical bearing member 18, a cylindrical holder 19 that holds the spherical bearing member 18, and a cylindrical holder 19 that holds the spherical bearing member 18 within the cylindrical holder 19. A spring receiving member 20 that slides while supporting the spring receiving member 20, a spring 21 whose one end is in elastic contact with the spring receiving member 20, and a bearing cover that supports the other end of the spring 21 and covers the outer open end of the cylindrical holder 19. It is composed of 22. Therefore, by inserting one shaft 14 of the soldering nest 1 into the spherical bearing member 18 of this bearing 17 and sliding the spring receiving member 20, by inserting the other shaft 14 into the bearing 17, the spring 21 Due to the repulsion of
Each shaft 14 is rotatably supported by bearings 16 and 17 without play, and the replacement work of the soldering nest 1 is facilitated.

Reference numeral 23 denotes a holding member attached to the rear part of the jig base 15, and is arranged corresponding to the lever plate 9 on the component holding member 4. Cam rollers 24 are attached to the tips of these holding members 23, and come into contact with the respective lever plates 9 to act to release the parts holding member 4 with respect to the jig base 1.

25 is located at the rear right end of the jig base 15, as shown in FIG.
A holder is installed as shown in FIG. 5, and a magnet 26 is installed in the holder 25, which enables the magnetic plate 4a of the component holder 4 to be held by attraction, as will be described later. Further, reference numeral 27 denotes support legs protruding from the four corners of the lower surface of the jig base 15.

Next, the operation of this soldering jig will be specifically explained with reference to FIGS. 6 to 8.

First, before starting the soldering work, as shown in FIG. 6, the hook 2 is engaged with the jig base 15,
The component presser 4 is opened against the torsion spring 3 by a cam roller 24. In this state, the printed board 12 is engaged with the guide piece 11, and the handle 1 is
0 by hand and release the engagement of the hook 2, the soldering nest 1 rotates in the direction of arrow A due to the repulsive force of the torsion spring 3, as shown in FIG. also rotates in the direction of arrow B. For this reason, the electronic components 1 on the printed board 12
3 is pressed through the cushion member 4b of the component holder 4.

Next, in this state, hold the handle 10,
When the soldering nest 1 is reversed about the shaft 14 in the direction of the arrow C, it becomes as shown in FIG. 8, and the magnetic plate 4a of the component holder 4 is finally attracted and held by the magnet 26.

Then, in this state, the lead terminals of the electronic component 13 and the circuit pattern are soldered on the back side of the printed board 12. After that, when holding the handle 10 again and returning the soldering nest 1 and inverting it, the cam roller 24 hits the lever plate 9 on the way, and the component presser 4
rotates to the open state shown in FIG. Then, when soldering nest 1 is completely lowered, hook 2
engages with the jig base 15 by itself, and at this time,
Remove the printed board 12 from the guide piece 11,
Finish the series of soldering work.

Furthermore, when using the above-mentioned torsion spring 3, the torque is greater when holding the soldering nest 1 on the jig vest 15 with the hook 2 for assembling the component than when holding down the electronic component. It gets bigger. Therefore, if a constant force spring is used as the torsion spring 3, the torque is the same in each of the above cases, so there is an advantage that the soldering work can be performed with a working force smaller than the repulsive force of the torsion spring 3. .

In addition, the electronic component 1 to be attached to the printed board 12
3. When relatively large and tall parts such as relays and electrolytic capacitors, or small and tall parts such as connectors and integrated circuit parts are installed side by side, color forms etc. However, by installing a spring plunger with a component holding pad in a part of the component holding down 4, it is insufficient to hold down the parts, which causes problems during soldering work.
This problem can be resolved. As shown in FIG. 9, this spring plunger has a cylinder member 31 screwed onto the magnetic plate 4a of the component holder 4, and a plunger 33 with a component holder pad 32 attached to the outer end slid into the cylinder member 31. The upper end of the plunger 33 is held by a spring retaining screw 35 via a coil spring 34. The elastic force of the component holding pad 32 against the electronic component can be arbitrarily adjusted according to the screwing amount of the spring holding screw 35. Note that 36 is a nut that is screwed onto the cylinder member 31 to firmly fix it to the magnetic plate 4a. Note that this spring plunger can be made into any shape depending on the size and shape of the electronic component.

[Effect of idea]

As described above, this invention includes a soldering nest and a jig base, and the soldering nest has a removable hook at one end and a torsion spring at the other end, which rotates in the closing direction. The jig base has a component holder that is biased, and the jig base is biased to open the component holder while engaged with the hook, and when the disengagement K is released, soldering is performed while the component holder is closed. Since the nest is supported in a reversible manner and the soldering nest is held by a magnet while it is being inverted, the electronic components on the printed board are automatically held down and returned to the soldering nest. This simplifies the work before and after the soldering process, improves the efficiency of the entire soldering work, and also reduces costs and worker fatigue.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing a soldering jig according to an embodiment of the invention, Fig. 2 is a plan view of the soldering nest, Fig. 3 is a right side view, and Fig. 4 is a diagram of the jig base. A plan view, FIG. 5 is a right side view, FIGS. 6, 7, and 8 are right side views showing the soldering jig before and after operation, and FIG. 9 is a vertical cross section of the spring plunger. It is a diagram. 1...Soldering nest, 2...Hook, 3...
Torsion spring, 4... Parts holder, 4a... Magnetic plate,
4b...Cushion member, 12...Printed board,
13...Electronic component, 15...Jig base, 23...
...Press member, 26...Magnet.

Claims (1)

[Claims for Utility Model Registration] (1) A soldering nest 1 that supports a printed board 12 that is reversibly supported on a jig base 15, and the jig base 1 attached to one end of this soldering nest 1.
a hook 2 that engages and disengages from the soldering nest 1; When the hook 2 is engaged with the jig base 15, the component holder 4 collides with the supporting end of the component holder 4, and the component holder 4 is held against the torsion spring 3 during the soldering. A presser member 23 that urges the nest 1 in the opening direction, and a component presser 4 that presses the soldering nest 1 in an inverted state.
A soldering jig equipped with a magnet 26 that attracts and holds the soldering jig to the jig base 15. (2) Request for registration of a utility model in which the component holder 4 is composed of a magnetic plate 4a and a cushion member 4b that is provided on the soldering nest 1 side of the magnetic plate and presses the electronic component 13 inserted into the printed board 12. The soldering jig described in item 1.