JPH11245026A - Soldering head for automatic machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a soldering head for an automatic machine, wherein cleaning of an iron tip end part can be carried out easily and securely. SOLUTION: A solder guide 4 which supplies a thready solder 5 is mounted to a supporting arm 7. The arm 7 is mounted to an iron member 3 in a way freely rotable around a mounting shaft 9 which crosses with a shaft line L3 of the iron member 3. An air cylinder 13 to rotate the arm 7 is also mounted to the iron member 3 and when the cleaning of the iron tip end part 3a is carried out, the solder guide 4 is separated from the iron tip end part 3a by rotating the arm 7 with the air cylinder 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soldering head for an automatic machine used by attaching to an automatic machine such as a soldering robot.

[0002]

2. Description of the Related Art As shown in FIG. 6, for example, an automatic machine such as a soldering robot for soldering electronic parts or the like is provided with a trowel member 33 for soldering at a tip end of a working arm 31.
A soldering head 32 is attached to the iron tip 33a of the iron member 33. The soldering head 32 includes a cylindrical solder guide 34 for supplying a threaded solder 35.
Is pressed against the object and soldering is performed while sequentially supplying the thread-like solder 35 from the solder guide 34 to the iron tip portion 33a.

The solder gradually adheres to the iron tip portion 33a with the progress of the soldering operation, and it is easy to cause erroneous soldering or defective soldering. I try to clean it.

However, since the solder guide 34 is located right next to the iron tip portion 33a, the solder guide 34 hinders the cleaning operation. For example, when the iron tip portion 33a is inserted into an air cleaner having an air nozzle and air is blown, the solder guide 34 comes into contact with the side wall of the cleaner and is displaced, or the iron tip portion 33a is In the case of brushing, there is a problem that the solder guide 34 hinders the entire circumference of the iron tip portion 33a from being brushed. .

It is assumed that the solder guide 34 is rotated to a position indicated by a dashed line around a mounting shaft 37a at the tip of the support arm 37, or the support arm 37 is mounted on the mounting shaft 37b.
, The range of their rotation is narrow due to the restriction by the support arm 37 or the iron member 33, so that the distance at which the solder guide 34 can be separated from the iron tip portion 33a is small, and a sufficient effect is obtained. Can not expect. Conversely, once the inclination angle of the solder guide 34 is changed, it is very difficult to completely return it to the original angle. Therefore, when resuming the soldering operation, the solder supply angle must be reset by teaching. This creates a new problem.

[0006]

A main technical problem of the present invention is to provide an automatic machine which can easily and reliably move a solder guide to a position where it does not hinder the work when cleaning the iron tip. An object of the present invention is to provide a soldering head.

[0007]

According to the present invention, to solve the above-mentioned problems, according to the present invention, an iron member which is attached to an automatic soldering machine and performs a soldering operation, and a thread-shaped solder is attached to the iron tip of the iron member. A cylindrical solder guide for supplying the solder guide to the iron member so that the solder guide is rotatable in a direction intersecting a plane including an axis of the solder guide and the iron member at the solder supply position. A soldering head for an automatic machine characterized by being mounted is provided.

In the soldering head having the above-described structure, at the time of the soldering operation, the solder guide is located at the solder supply position, and the soldering is performed while sequentially supplying the thread-shaped solder to the iron tip.

Further, when cleaning the iron tip, the solder guide is rotated in a direction intersecting the plane including the axis of the solder guide and the iron member, and in this state, such as air blow or brushing, is performed. A cleaning operation is performed. At this time, since the solder guide rotates to a position completely separated from the iron tip portion, the soldering guide can be easily and reliably performed without obstructing the above-described air blow or brushing. Moreover, since the rotation and return of the solder guide can be performed while maintaining the inclination angle for supplying the solder to the iron member, it is not necessary to perform the teaching again due to the change in the inclination angle.

According to a preferred specific embodiment of the present invention, the solder guide is attached to the support arm while maintaining an inclined angle for supplying solder to the iron member, and the support arm is attached to the iron member. The iron member is rotatably mounted around a mounting axis orthogonal to the axis of the iron member, and the iron member is provided with a driving means for rotating the support arm. This drive means is preferably constituted by an air cylinder.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In FIG. 1, reference numeral 1 denotes a work arm of a soldering robot, which is an automatic machine, and a part of the tip is shown. Reference numeral 2 denotes a soldering head attached to the work arm 1. The soldering head 2 includes a trowel member 3 that presses the iron tip portion 3a against an object to perform soldering, and a thread-like member attached to the iron tip portion 3a. And a cylindrical solder guide 4 for supplying the solder 5.

The iron member 3 is of a type in which the iron tip portion 3a is heated by a built-in electric heating type heater. Since such an iron member is already known, the description of its specific configuration will be omitted. .

As is clear from FIGS. 2 to 4, the solder guide 4 is connected to the iron member 3 via a support arm 7.
Are mounted so as to be rotatable in two directions. That is, the mounting member 8 is fixed to the iron member 3, and the support arm 7 is attached to the mounting member 8 by the axis L of the iron member 3.
The first mounting shaft 9 orthogonal to the third 3 allows the solder supply position A
(FIGS. 1 and 3) are attached so as to be rotatable in a direction intersecting a plane including the axis L4 of the solder guide 4 and the axis L3 of the iron member 3 in FIG. The solder guide 4 is mounted on the second mounting shaft 11 via the connecting piece 10 so that the inclination angle θ for supplying the solder can be adjusted in the plane.

An air cylinder 13 as driving means for rotating the support arm 7 is mounted on the mounting member 8. A rod 13 a of the air cylinder 13 and the support arm 7 are connected via a connecting mechanism 14. Connected. The connection mechanism 14 is attached to the connection block 15 fixed to the tip of the rod 13a, the first connection member 16 attached to the connection block 15, and the support arm 7 so as to be slidable in the axial direction. The first connecting member 16 and the second connecting member 17 are rotatably connected by pins 18 and the support arm 7 is connected to the solder supply position A in FIG. When the rod 13a of the air cylinder 13 extends from the state shown in FIG. 5, the support arm 7 and the solder guide 4 rotate to the standby position B shown in FIG.

In the drawing, reference numeral 20 denotes a stopper for positioning the support arm 7 at the solder supply position A, and reference numeral 21 denotes a connection port for connecting a tube for supplying and discharging compressed air to the air cylinder 13.

The soldering head 2 having the above configuration is
In a state where the solder guide 4 is held at the solder supply position A shown in FIG.
The soldering operation is performed while sequentially supplying the thread-like solder 5 to the soldering. At this time, the inclination angle θ of the solder guide 4 can be adjusted by rotating the solder guide 4 about the second mounting shaft 11.

When the solder attached to the iron tip 3a is removed by cleaning, the rod 1 of the air cylinder 13 is used.
3a, the support arm 7 is rotated about the first mounting shaft 9 to the standby position B in FIG. 5, and cleaning is performed in this state. At this time, the solder guide 4 pivots to a position completely separated from the iron tip portion 3a, so that it does not interfere with air blow, brushing, or the like.
The entire circumference of a can be easily and reliably cleaned.

After the cleaning, the air cylinder 1
3 is shortened, and the support arm 7 is
It returns to the solder supply position A where it comes into contact with 0, and the next soldering step is performed. Since the rotation of the solder guide 4 between the solder supply position A and the standby position B is performed without changing the inclination angle θ, it is not necessary to perform teaching again by changing the inclination angle.

The driving means is not limited to the air cylinder 13 described above, but may be a driving means using other electromagnetic or mechanical acting force.

[0020]

As described above, according to the present invention, the solder guide is rotatable in a direction intersecting with a plane including the axis of the solder guide and the iron member at the solder supply position. When cleaning the iron tip portion, the solder guide is rotated to a position that is largely separated from the iron tip portion and out of the way, and the cleaning operation can be performed simply and reliably in that state. Moreover, since the solder guide can be rotated without changing the inclination angle for supplying the solder to the iron member, it is not necessary to repeat the teaching due to the change in the inclination angle.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a soldering head according to the present invention.

FIG. 2 is an enlarged view of a main part of FIG.

FIG. 3 is a right side view of FIG. 2;

FIG. 4 is a plan view of FIG. 3;

FIG. 5 is a right side view similar to FIG. 3, showing a state in which a solder guide is rotated.

FIG. 6 is a front view of a main part of a conventional soldering head.

[Explanation of symbols]

 2 Soldering head 3 Iron member 3a Iron tip 4 Solder guide 5 Threaded solder 7 Support arm 13 Air cylinder L3, L4 Axis

Claims (3)

[Claims] A soldering member attached to an automatic soldering machine for performing a soldering operation; and a cylindrical solder guide for supplying a thread-like solder to the iron tip of the ironing member. Is attached to the iron member so as to be rotatable in a direction intersecting with a plane including the axis of the solder guide and the iron member at the solder supply position. 2. The soldering head according to claim 1, wherein said solder guide is attached to a support arm while maintaining an inclined angle for supplying solder to said iron member, and said support arm is attached to said iron member. The iron member is rotatably mounted around a mounting axis orthogonal to the axis of the iron member, and the iron member is provided with a driving means for rotating the support arm. 3. The soldering head according to claim 2, wherein said driving means is an air cylinder.