JP2006212678A - Tool and method for coating thread solder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tool and a method for coating a thread solder for a light beam soldering device capable of efficiently adjusting the target of the thread solder. <P>SOLUTION: A tool body part 1 is attached to an irradiation head 13 of a lens unit 2, the direction of a guide pipe 7 is adjusted so that a thread solder 4 to be guided by the guide pipe 7 is passed through a targeting hole 5 of the tool body part 1, and the target of the thread solder 4 is adjusted thereby. Thus, a work requiring time and labor for adjusting the target of the thread solder 4 so that the thread solder 4 is fed toward a soldering part of a work by using an actual work like a conventional target adjusting method of the thread solder 4 can be omitted, and the target adjusting work becomes efficient. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a yarn solder application jig and a yarn solder application method, and in particular, a yarn solder application jig for a light beam soldering apparatus for adjusting the aim of yarn solder supplied to a yarn soldering portion. And a yarn solder coating method using the yarn solder coating jig.

  Conventionally, a light beam soldering apparatus in which a xenon lamp or a semiconductor laser is used as a light source is known. In such a light beam soldering apparatus, light from a light source is collected by an optical fiber, and light energy collected by the optical fiber is narrowed to a high density by a condenser lens. Thereby, since the light beam soldering apparatus can heat only the thread soldering part pinpoint, it is widely used for thread soldering of electronic parts, printed boards and the like that are easily damaged by heat. In such a light beam soldering apparatus, there is one in which thread solder is supplied to a thread soldering portion by a thread solder supply apparatus. For example, as shown in FIG. 5, when the module pins 22 and the terminal terminals 23 of the connector 21 are thread-soldered, a beam is irradiated onto the thread soldering unit 10 by the lens unit 2 positioned by the orthogonal robot. Then, the thread solder 4 drawn from the reel 12 (see FIG. 3) is supplied to the thread soldering unit 10 by the thread solder supply device 3 (see FIG. 3). In such a light beam soldering apparatus, as shown in FIG. 3, the thread solder supply section 6 of the thread solder supply apparatus 3 is positioned integrally with the lens unit 2, and the thread solder 4 is aligned with the thread solder supply section 6. Is guided toward the yarn soldering portion 10 by a guide pipe 7 provided in the case (see, for example, Patent Document 1).

In such a light beam soldering apparatus, when adjusting the aim of the thread solder 4, conventionally, as shown in FIG. 5, an actual work (connector 21) is set on the work table, After the orthogonal robot is moved by step feed and the lens unit 2 is positioned at the thread soldering position, the direction of the guide pipe 7 is adjusted while feeding the thread solder 4 toward the thread soldering portion 10. It was. For example, according to the data possessed by the present applicant, in a certain connector 21, the length of the module pin 22 protruding from the terminal terminal 23 is 1.4 mm, and the + Z direction from the terminal terminal 23 (viewed in FIG. 7). (Upward) is set to 0.4 mm, and the thread soldering portion 10 is set at the center position of the terminal terminal 23, and 4.0 mm in the −X direction (left direction in FIG. 6) with respect to the module pin 22. It is required to adjust the aim of the thread solder 4 so that the thread solder 4 is supplied at a dip angle of 35 degrees from the position. Therefore, conventionally, adjusting the aim of the thread solder requires a lot of time and labor, and it is necessary to adjust the aim of the thread solder 4 every time the work to be used is changed. Productivity was a factor.
JP-A-8-64886 (paragraph numbers 0015 to 0022, FIG. 1)

Accordingly, the present invention has been made in view of the above circumstances, and a first object is to provide a yarn solder application jig for a light beam soldering apparatus in which the adjustment of the aim of the yarn solder is efficiently performed. is there.
A second object is to provide a thread solder application method for a light beam soldering apparatus in which the aim of thread solder is adjusted efficiently.

  In order to achieve the first object, the invention according to claim 1 of the present invention is for applying thread solder to a predetermined position of a workpiece from a thread solder supply section disposed in the vicinity of the lens unit. A jig for applying thread solder, which is detachably attached to the lens unit, and has a jig body having a target hole for penetrating the thread solder from the thread solder supply section, and the jig body and thread solder. It is placed between the supply unit and a distance adjustment unit for adjusting the distance between the thread solder supply unit and the aiming hole. When the aiming hole attaches the jig body to the lens unit Further, the lens unit is positioned so as to coincide with the focal position of the lens unit.

In order to achieve the second object, the invention according to claim 2 of the present invention is a yarn solder in which a yarn solder is applied to a predetermined position of a workpiece from a yarn solder supply unit disposed in the vicinity of the lens unit. A method of applying, wherein a target hole through which the thread solder can penetrate is fixed at a position corresponding to the focal point of the lens unit; and a distance between the thread solder supply unit and the target hole is adjusted to a predetermined distance; And a step of supplying the thread solder from the thread solder supply section toward the target hole and applying the thread solder to a predetermined position of the workpiece.
According to a third aspect of the present invention, in the yarn solder coating method according to the second aspect, the step of adjusting the distance between the yarn solder supply portion and the target hole includes the optical axis of the lens unit, the yarn It is performed by adjusting the distance with the supply port of a solder supply part.

Therefore, in the first aspect of the invention, the thread solder is adjusted to the lens unit by adjusting the thread solder so that the thread solder is supplied toward the aim hole of the jig main body mounted on the lens unit. Supplied to the focus. Further, the distance adjusting unit is placed between the jig main body unit and the thread solder supply unit, whereby the distance between the thread solder supply unit and the target hole is adjusted.
In the second aspect of the invention, the aim of the solder wire is adjusted by executing each step.
According to the third aspect of the present invention, the distance between the optical axis of the lens unit and the supply port of the yarn solder supply unit is adjusted by adjusting the distance between the yarn solder supply unit and the target hole.

  It is possible to provide a thread solder application jig and a thread solder application method in which the adjustment of the aim of the thread solder is efficiently performed.

  An embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the jig main body part 1 is detachably attached to the lens unit 2 of the light beam soldering apparatus in the yarn solder application jig for the light beam soldering apparatus. And the direction of the guide pipe 7 of the thread solder supply part 6 is adjusted so that the thread solder 4 guided by the guide pipe 7 is inserted into the aiming hole 5 formed in the jig main body part 1, and As shown in FIG. 2, a gauge block 8 (distance adjusting unit) is interposed between the jig body 1 and the guide pipe 7, and the distance between the optical axis of the condensing lens of the lens unit 2 and the guide pipe 7. By adjusting L appropriately, the aim of the thread solder 4 is adjusted. The light beam soldering apparatus is roughly divided into a heat source unit including a power supply device and a laser head, and a lens unit 2 including the condenser lens, and a semiconductor laser beam output from the heat source unit is applied to an optical fiber. Collected. The light energy collected in the optical fiber is narrowed down by the condensing lens of the lens unit 2, and a beam whose output energy is increased in density is irradiated onto the yarn soldering portion of the workpiece.

  As shown in FIG. 3, in the light beam soldering apparatus, the lens unit 2 is attached to the moving head 11 of the orthogonal robot, and the lens unit 2 is in the X direction with respect to the mechanical origin of the orthogonal robot (FIG. 3). Are positioned in the Y direction (the direction of the drawing in FIG. 3) and the Z direction (the direction of the drawing in the drawing in FIG. 3). The moving head 11 of the orthogonal robot is provided with a thread solder supply device 3, and the thread solder supply unit 6 of the thread solder supply device 3 is attached to the irradiation head 13 of the lens unit 2. In the light beam soldering apparatus, the thread solder 4 drawn out from the reel 12 of the thread solder supply apparatus 3 (in the present embodiment, the outer diameter is 0.8 mm) is provided in the thread solder supply section 6. It is configured such that it is guided by a stainless steel guide pipe 7 and supplied toward the thread soldering portion of the workpiece. As shown in FIG. 4, the jig body 1 has a mounting portion 14 that is formed in a disc shape and has an outer diameter that is substantially equal to the outer diameter of the irradiation head 13. And the irradiation head 13 are attached to the end surface 13a of the irradiation head 13 by the magnetic force of the magnet interposed between the irradiation head 13 and the irradiation head 13.

  In addition, the jig main body 1 has a column portion 15 erected substantially at the center of the surface 14b of the attachment portion 14 opposite to the attachment surface 14a. The aiming hole 5 (in this embodiment, the inner diameter is 1.0 mm) penetrating the focal position of the condenser lens in the X direction (left and right direction as viewed in FIG. 3) is formed. Note that the jig body 1 is configured such that the protrusion 16 protruding from the periphery of the attachment surface 14 a of the attachment portion 14 is engaged with the notch 17 formed on the end surface 13 a of the irradiation head 13. The lens unit 2 is positioned around the optical axis of the condenser lens. As shown in FIG. 2, the gauge block 8 is constituted by a rectangular parallelepiped having a square cross section perpendicular to the axis, and the dimensions of each side of the square are the optical axis of the condenser lens and the guide pipe 7. Is set to an appropriate distance L (4.0 mm in the present embodiment). Note that the jig main body part 1 and the gauge block 8 are connected to each other by a chain 18 in the true yarn solder application jig.

  Next, a method for adjusting the aim of the thread solder 4 (in the present embodiment, the outer diameter is 0.8 mm) using the thread solder application jig for the light beam soldering apparatus will be described. First, as shown in FIG. 4, the protrusion 16 of the jig body 1 is engaged with the notch 17 formed on the end surface 13a of the irradiation head 13 of the lens unit 2, so that the jig body The unit 1 is attached to the irradiation head 13 with a magnet. In this state, as shown in FIG. 2, the gauge block 8 (distance adjusting portion) is interposed between the column portion 15 of the jig main body portion 1 and the guide pipe 7 of the thread solder supply portion 6 to collect light. The distance between the optical axis of the lens (the focal position of the condenser lens) and the guide pipe 7 in the X direction (left and right direction in FIG. 2) is an appropriate distance L (4.0 mm in this embodiment). Then, the guide pipe 7 (thread solder supply part) is positioned in the X direction. Next, by operating the thread solder supply device 3, as shown in FIG. 1, the thread solder 4 pulled out from the reel 12 and guided to the guide pipe 7 of the thread solder supply unit 6 is moved to the jig body 1. The direction of the guide pipe 7 is adjusted so as to be inserted into the aiming hole 5 (in the present embodiment, the inner diameter is 1.0 mm) formed in the column portion 15.

  Thereby, in the true yarn solder application jig, the yarn solder 4 is moved from the optical axis of the condenser lens (the focal position of the condenser lens) by a distance L in the X direction from the condenser lens of the lens unit 2. The guide pipe 7 is positioned with respect to the focal position of the condenser lens so as to be supplied toward the focal position, and the aim of the thread solder 4 is adjusted.

This embodiment has the following effects.
In the yarn solder application jig for the light beam soldering apparatus, the jig main body 1 is mounted on the irradiation head 13 of the lens unit 2, and the optical axis of the condenser lens (the focal position of the condenser lens) and the guide pipe. The distance L in the X direction with respect to 7 is adjusted by interposing a gauge block 8 (distance adjusting portion) between the column portion 15 of the jig main body portion 1 and the guide pipe 7 of the thread solder supplying portion 6. The direction of the guide pipe 7 is adjusted such that the thread solder 4 guided by the guide pipe 7 is inserted into the aiming hole 5 formed in the column part 15 of the jig body 1, thereby the thread solder 4. Is adjusted to the focal position of the condenser lens.

Therefore, in the present jig for soldering soldering for light beam soldering apparatus, an actual work is not necessary for adjusting the aim of the thread solder 4, and an actual work like the conventional method for adjusting the aim of the thread solder 4 is required. It is possible to eliminate the time-consuming and labor-intensive work of adjusting the aim of the thread solder 4 so that the thread solder 4 is supplied toward the soldering portion of the workpiece using the Is significantly improved.
In addition, compared with the conventional method of adjusting the solder solder 4 aim, the aim is determined based on the clear fact that the thread solder 4 is inserted into the aim hole 5 formed in the jig main body 1. The variation (artificial variation) by a person is eliminated as much as possible, and the application accuracy of the thread solder 4 is increased.
Moreover, since the jig main body 1 is attached to the end surface 13a of the irradiation head 13 of the lens unit 2 by a magnet, the jig main body 1 can be attached and detached very easily. And since the convex part 16 provided in the attachment surface 14a of the jig | tool main body part 1 is engaged with the notch part 17 provided in the end surface 13a of the irradiation head 13, the jig | tool main body part 1 is the optical axis of a condensing lens. It is easily and reliably positioned around.

In addition, embodiment is not limited above, For example, you may comprise as follows.
The aiming hole 5 formed in the jig body 1 may be set in shape and size according to the required aiming accuracy of the thread solder 4.
The gauge block 8 (distance adjusting unit) may not be a rectangular parallelepiped, and may be, for example, a plate-like ruler. Moreover, what is necessary is just to connect the jig | tool main-body part 1 and the gauge block 8 with the chain 18 etc. as needed, and both connection is not essential.
As a means for attaching the jig main body 1 to the lens unit 2, it is not necessary to use a magnet, and any means can be used as long as it is efficient and has high reproducibility (high accuracy).

It is explanatory drawing of this Embodiment, Comprising: The state in which the direction of a guide pipe is adjusted by inserting the thread solder guided by the guide pipe into the aim hole of the jig body part attached to the end face of the irradiation head. FIG. It is explanatory drawing of this Embodiment, Comprising: A mode that the distance L between the optical axis of the condensing lens of a lens unit and a guide pipe is adjusted by interposing a gauge block between a jig | tool main-body part and a guide pipe. FIG. It is a figure which shows the moving head periphery of an orthogonal robot. It is explanatory drawing of this Embodiment, Comprising: It is a figure which shows a jig | tool main body part and the irradiation head of the lens unit with which this jig | tool main body part is mounted | worn. It is a figure which shows a mode that the module pin and terminal terminal of a connector are soldered by the light beam soldering apparatus. It is a figure which shows the aim of the thread solder in XY plane of the machine coordinate of an orthogonal robot. It is a figure which shows the aim of the thread solder in the ZX plane of the machine coordinate of an orthogonal robot.

Explanation of symbols

1 jig body, 2 lens unit, 4 thread solder, 5 aim hole, 6 thread solder supply section, 8 gauge block (distance adjustment section)

Claims (3)

A thread solder application jig for applying thread solder to a predetermined position of a workpiece from a thread solder supply unit disposed in the vicinity of the lens unit,
A jig main body part that is detachably attached to the lens unit and includes a target hole for penetrating the thread solder from the thread solder supply part,
It is placed between the jig body part and the thread solder supply part, and includes a distance adjustment part for adjusting the distance between the thread solder supply part and the aim hole,
The yarn solder coating jig, wherein the aiming hole is positioned so as to coincide with a focal position of the lens unit when the jig body is mounted on the lens unit. A thread solder application method for applying thread solder to a predetermined position of a workpiece from a thread solder supply unit disposed in the vicinity of a lens unit,
Fixing a target hole through which the thread solder can penetrate at a position corresponding to the focal point of the lens unit;
Adjusting the distance between the thread solder supply section and the aim hole to a predetermined distance;
Supplying thread solder from the thread solder supply unit toward the target hole, and applying the thread solder to a predetermined position of the workpiece;
A yarn solder coating method characterized by comprising: The step of adjusting the distance between the thread solder supply part and the aim hole is performed by adjusting the distance between the optical axis of the lens unit and the supply port of the thread solder supply part. The yarn solder coating method according to claim 2.

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