KR101418384B1 - Automatic welding unit and automatic welding equipment having the same - Google Patents

Abstract

The present invention relates to a lead supply apparatus, comprising: a lead supply unit installed in a head unit and supplying a lead having a predetermined size along a lead supply path; A lead base portion connected to the lead supply passage and selectively discharging the supplied lead; And a welding portion installed in the head portion and applying a predetermined heat to the lead to be selectively discharged to discharge the lead in a liquid state along the discharge path to the bonding position. The present invention also provides automatic welding equipment with the automatic welding unit.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic welding unit,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic welding machine, and more particularly, to an automatic welding machine and an automatic welding machine having the automatic welding machine capable of improving the quality of welding by supplying solder uniformly in a liquid state.

[0003] In general, various electronic components are disposed on various circuit boards that enter the interior of an electronic product. These electronic components are electrically connected to the circuit through soldering.

Conventionally, a method has been used in which an operator manually conducts the soldering process as described above.

For example, when the relative position of the object to be soldered to the contact portion formed on the circuit board can be changed each time, manual soldering has to be performed.

Conventionally, an automatic soldering apparatus has been developed and used to solve such a manual soldering.

When a conventional automatic soldering apparatus is used, the electronic parts are queued at the bonding position, the soldering tip is placed close to the bonding position via another jig, and the wire solder is supplied to the soldering tip through the wire solder feeder, do.

However, in such a case, there is a problem that the wire solder is excessively supplied or is supplied in a small amount, causing a problem in electrical connection.

As a bad phenomenon, cleaning due to solder ball and solder ball occurs.

And environmental pollution due to washing may be improved.

Further, when the wire solder remains below a certain length, there is a problem of material waste due to removal of the wire solder and supply of new wire solder.

In addition, since the material of the soldering tip itself is formed of metal, it is consumed in a short time due to the soldering work for a long period of time, and the lifetime is shortened, thereby increasing the replacement cost.

The prior art related to the present invention is Korean Patent Laid-Open No. 10-2012-0068399 (date of publication: Jun. 27, 2012), wherein the relative position of the end of the wire to the contact portion of the circuit board is automatically A welding method and a welding method.

An object of the present invention is to provide an automatic welding unit and an automatic welding equipment having the automatic welding unit capable of improving the quality of welding by supplying the leads in a liquid state in a uniform amount in the bonding position.

Another object of the present invention is to provide an automatic welding unit and an automatic welding equipment having the automatic welding unit, which can effectively extend the service life of the soldering tip when a long-time welding process is performed.

According to a preferred aspect of the present invention, the present invention provides a semiconductor device, comprising: a lead supply part installed in a head part and supplying a lead of a predetermined size along a lead supply path; A lead base portion connected to the lead supply passage and selectively discharging the supplied lead; And a welding portion installed in the head portion and applying a predetermined heat to the lead to be selectively discharged to discharge the lead in a liquid state along the discharge path to the bonding position.

The lead waiting unit includes a reservoir connected to the lead supply passage and storing the supplied lead, an ejector installed to be rotatable at a lower end of the reservoir and having a through hole through which the lead passes, And a rotator selectively receiving the electrical signal to rotate the discharger so that the through hole is exposed to the welded portion.

The welding portion may include a mounting hole disposed at a lower portion of the lead waiting portion, the mounting hole being temporarily seated with the lead to be discharged, and a discharge hole connected to the mounting hole to form the discharge passage toward the joint position And a welding member.

The welding portion includes a pair of working arms, one end of which is located at the boundary with the lead waiting portion, and which is provided at the head portion, and the other end of which is provided to face each other at an end portion of each of the working arms, And a pair of welding members forming an inclination.

Here, it is preferable that the discharge passage is a pair of discharge holes formed on the abutting surfaces of the pair of welding members so as to face the welding position.

Wherein the pair of operating arms are connected to the head unit via a hinge shaft and are elastically connected to each other by elastic springs, the working arms are connected to a vibrator that receives an electrical signal from the outside to form vibration, It is preferable to provide a constant vibration to each of the operation arms to transmit the vibration to the respective welding members.

The welding portion includes a heating portion.

Preferably, the heating section provides a certain amount of heat to the welding member.

It is preferable that a soldering tip is formed on an end portion of each of the welding members facing the joining position, and the soldering tip is formed of a ceramic material.

The leads are preferably cut to a predetermined length to form a predetermined size.

In another aspect, the present invention provides an apparatus comprising: a facility body; A seating unit installed on the facility body and on which a welding object forms a jointing position; The automatic welding unit installed on the facility body; And a mobile unit for moving the position of the automatic welding unit.

The present invention has the effect of improving the quality of welding by supplying the leads in a liquid state in a uniform amount to the joint positions.

Further, the present invention has an effect that the life of the soldering tip can be effectively extended when the welding process is performed for a long period of time.

In addition, since the lead is supplied along the discharge hole in a liquid state, the present invention has an effect that the solder ball does not splash out to the outer space, so that no separate cleaning operation is required.

In addition, the present invention has the effect of preventing the electrical shorting phenomenon caused by connecting the leads to the other bonding positions by supplying the leads in a constant amount to the bonding positions.

Further, the present invention has the effect that the molten lead can be easily discharged to the joint position by vibrating the welding member using the vibrator.

Further, the present invention has the effect that the molten lead can be easily dropped along the discharge hole, and the solder shape can be uniformly formed.

1 is a perspective view showing the automatic welding equipment of the present invention.
2 is a perspective view showing an automatic welding unit according to the present invention.
FIGS. 3 and 4 are views showing a process of selectively discharging leads in the lead-waiting portion according to the present invention.
5 is a partial cross-sectional view along line AA of FIG. 1, showing a pair of welded members according to the present invention in a spaced apart condition;
6 is a partial cross-sectional view showing a state in which a pair of welding members according to the present invention are in contact with each other.
7 is a plan view showing the upper part of a pair of welding members according to the present invention.
8 to 11 are views showing a welding process of the automatic welding equipment according to the present invention.
12 is a partial cross-sectional view showing another example of the welding member according to the present invention.

Hereinafter, the automatic welding equipment of the present invention will be described with reference to the accompanying drawings. Here, since the automatic welding unit of the present invention is provided in a large number in the facility body and is formed in the same configuration as each other, the automatic welding unit will be described including the automatic welding equipment.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 shows the automatic welding equipment of the present invention.

Referring to FIG. 1, the automatic welding equipment of the present invention mainly comprises an equipment main body 1 and one or more automatic welding units 2.

The apparatus main body 1 is provided with a seat unit 100.

The seating unit 100 has a seating area 110 on which the object to be bonded 10 is seated. A transfer unit (not shown) for transferring the object to be bonded 10 along the Y axis is provided in the seating area 110. Here, a plurality of objects to be bonded may be transported to a predetermined bonding position in the seating area in a state of being stacked on one tray.

In the installation main body 1, a horizontal frame 120 is disposed at the upper portion of the seating area 110 and along the horizontal direction.

One or more sliding convex portions 140 are installed in the horizontal frame 120. The sliding block 140 may be moved along the horizontal frame 120 by a moving part 130 such as a separate motor such as a linear motor.

1 shows an example in which two sliding blocks 120 are formed.

The sliding block 140 is provided with a lifting unit 150. The elevating unit 150 may be a device such as the elevating cylinder 151. The elevating part 150 includes an elevating shaft 152 to be elevated and lowered.

The lifting shaft 152 is provided with a support plate 160. The support plate 151 is interlocked with the lifting and lowering operation of the lifting shaft 152.

Accordingly, as shown in FIG. 1, each sliding block 140 is provided with a support plate 160, respectively.

The automatic welding unit 2 of the present invention may be fixedly mounted on each of the support plates 160.

Here, the automatic welding unit 2 may be installed side by side in a pair of two support plates 160.

Of course, the above-described limitation of the number of the sliding block 140, the support plate 160, and the automatic welding unit 2 is not limited to the example shown in Fig. 1 but can be variably set.

Next, the structure of the above-described static travel welding unit 2 will be described.

Figure 2 shows an automatic welding unit according to the invention.

Referring to FIG. 2, the automatic welding unit 2 includes a head part 200, a lead supplying part 300, a lead-waiting part 400, and a welding part 500.

The head unit 200 is fixed to the front surface of the support plate 160.

The lead supply part 300 is installed on the front part of the head part 200. The lead supply unit 300 may include a cutter 310 for cutting the lead 20 supplied from the outside to a predetermined size and a lead supply tube 320.

Although not shown in the drawing, the cutting device 310 includes a blade, and the blade is moved in one direction at a predetermined time interval by an external power using a device such as a linear motor so that the lead 20 provided from the outside Or may be a device that cuts at regular intervals.

The lead supply tube 320 may form the lead supply path 321 by connecting the cutter 310 and the lead-waiting portion 400.

Here, the lead-waiting portion 400 is positioned below the lead-supplying portion 300. Thus, the lead supply tube 320 remains in an upright state.

Therefore, the lead 20 cut by the cutting machine 310 flows into the lead supply tube 320 and is moved downward along the lead supply path 321 by the load of the lead 10 itself have.

In addition to the lead supply tube 320, a metal tube may be employed as the lead supply path 321.

3 shows a lead waiting section according to the invention.

Referring to FIG. 3, the lead-waiting portion 400 is connected to the lead supply tube 320 of the lead supply portion 300 described above.

The lead-waiting unit 400 may include a storage unit 400, an ejector 410, and a rotator 420.

The reservoir 410 forms a predetermined space therein, and the upper end of the reservoir 410 is connected to the lead supply tube 320.

Accordingly, the leads 20 falling along the lead supply tube 320 can be temporarily stored in the internal space of the reservoir 410 and stand by.

In addition, the lower end of the reservoir 410 forms a slope that narrows downward. Further, the inner space also forms an inclination gradually narrowing downward.

At the lower end of the reservoir 410, a cylindrical emitter 420 is positioned. An opening is formed in the lower end of the reservoir 410 and a periphery of the discharger 420 is exposed in an opening formed in the lower end of the reservoir.

Thus, the cut lid 20 can be positioned around the ejector 420 exposed to the opening.

The ejector 420 has a through hole 422 passing through in the radial direction.

The hole size of the discharge hole 422 may be such that the lead 20 cut in a predetermined size is sequentially passed through the hole.

The ejector 420 has a rotation shaft 421 and the rotation shaft 421 is connected to the rotator 430.

The rotator 430 receives an electrical signal from a separate controller 600 and rotates in a predetermined angle range to rotate the ejector 420.

When the ejector 420 is rotated so that the through hole 422 is exposed to the lower space of the inner space of the reservoir 410, the lead 20 falls down along the through hole 422 and is discharged downward, When the ejector 420 is rotated to another position so that the inner space of the reservoir 410 is not exposed to the lower space of the reservoir 410, the reed 20 may be placed in a state of being positioned around the ejector 420 have.

5 to 7 are views showing a weld according to the present invention.

Referring to Figs. 2 and 5 to 7, the configuration of the welded portion according to the present invention will be described.

Referring to FIG. 2, the welding part 500 according to the present invention has a role to supply the lead 20, which is discharged from the lead-waiting part 400, to the bonding position WP (see FIG. 10) do.

The welding portion 500 may be largely composed of a pair of operation arms 510 and a pair of welding members 530.

One end of the pair of operation arms 510 is positioned on both sides of the lead-waiting base 400 as a boundary. One end of the pair of actuating arms 510 is connected to the head unit 200 by forming a hinge shaft 511.

Here, the pair of operation arms 510 may be made of a non-metallic material having heat resistance.

The pair of operating arms 510 are resiliently connected by an elastic spring 520. Therefore, the pair of actuating arms 510 can be elastically flown when they are opened or closed from side to side. That is, the home position can be easily returned.

The pair of welding members 530 are installed at the other ends of the pair of operating arms 510, respectively.

The pair of welding members 530 are formed to face each other, and are formed to be gathered together along the lower side.

A soldering tip 531 is formed on the lower end of each welding member 530.

Here, the inside of each of the welding members 530 is formed with a flat surface which can be brought into contact with each other.

Further, a discharge hole 532b along the vertical direction is formed on the flat surface of the respective welding members 530. The discharge hole 532b may be a semicircular groove in cross section.

Therefore, when the respective welding members 530 are brought into contact with each other, each of the discharge holes 532b forms one hole through which the liquid-like lead 20 flows downward and can be supplied to the welding position WP have.

Here, the welding member 530 is connected to a heating unit 700 such as a heater. The heating unit 700 is controlled by the control unit 600 to heat the welding member 530 to a predetermined temperature.

Accordingly, when the lid 20 is mounted on the upper end of the welding member 530, the lid 20 is melted in the liquid state by the heat, and the liquid-like lid 20, which is melted and changed in state, And is supplied to the bonding position WP.

Meanwhile, the pair of operation arms 510 according to the present invention may be connected to the vibrator 550. The vibrator 550 is driven by the controller 600, and vibrates each of the operation arms 510 at a predetermined frequency.

Therefore, each of the welding members 530 can be vibrated and oscillated from the operating arm 510. [

As each welding member 530 is vibrated, the shape of the liquid-like lead 20 flowing downward through the discharge hole 532b is made uniform and the downward discharge is facilitated.

In addition, the welding member 530 may be formed of a ceramic material to prolong the service life.

Meanwhile, the above-described elevating unit 150 can be elevated and lowered by a control signal of the controller 600. [

The following describes the welding process and operation of the automatic welding equipment having the above-described configuration.

Referring to FIG. 1, a plurality of objects to be bonded 10 are sequentially seated in the seating area 110 of the seating unit 100. The bonded object 10 to be seated can be moved along the Y-axis to the lower portion of each automatic welding unit 2 by the transfer unit. That is, the object 10 to be bonded may be located at the bonding position WP.

In the present invention, an automatic welding unit 2 composed of two groups is disclosed, but the operation of one automatic welding unit 2 is explained.

8, the controller 600 operates the cutter 310 of the lead feeder 300 to sequentially cut the lead 10 to a predetermined size or a predetermined length and feed the lead 10 to the lead feed tube 320 Guide.

Therefore, the lead supply tube 320 is in a state in which a plurality of cuts 20 can be sequentially dropped along the lead supply path 321. [

The leads 20 that are sequentially dropped as described above are positioned in the inner space of the reservoir 410 of the lead-

The leads 20 are positioned around the ejector 420 located at the lower end opening of the reservoir 410. At this time, the ejector 420 may be in the initial rotational position (see FIG. 3), and the through hole 422 at this position forms a state in which the lead 20 is not exposed to the opening so as not to penetrate.

At the same time, the control unit 600 drives the heating unit 700 to heat the pair of welding members 530 to a predetermined temperature.

Although not shown in the drawings, the temperature of each welding member 530 is measured by each temperature sensor, and by transmitting it to the control unit 600, the control unit 600 determines whether the heating temperature of the welding member 530 It can be judged whether or not it has arrived.

In addition, the operation arm 510 and the welding member 530 according to the present invention can be cooled and maintained at a certain stable temperature by a water-cooling type or an air-cooling type cooling system.

On the other hand, when the object to be bonded 10 is waiting at the bonding position WP by the transfer unit, the automatic welding unit 2 located above the bonding object 10 can supply the liquid lead to the bonding position WP.

That is, the control unit 600 lowers the elevation shaft 152 of the elevation unit 150 to a predetermined position, so that the supporting plate 160 and the head unit 200 simultaneously descend downward.

Here, the lowering position is preset in the control unit 600 so that the soldering tip 531 of the welding member 530 reaches a predetermined upper position of the bonding position WP.

Next, the control unit 600 rotates the ejector 420 to the operating rotation position using the rotator 430 (see FIGS. 4 and 9). Therefore, the through hole 422 formed in the ejector 420 is exposed at the opening and below.

10 and 11, the lid 20 waiting at the opening of the reservoir 410 of the lead-waiting portion 400 is dropped by the self-load through the through-hole 422, In the space between the upper ends of the welding members 530 of the welding member 530. [

A seating hole 532a is formed between the pair of the welding members 530 for temporarily holding the falling lead 20 therein. The seating hole 532a is inclined downward, Gt; 532b. ≪ / RTI >

Therefore, the lid 20 temporarily falling and seated in the seating hole 532a is changed to a liquid state by the heat of the welding member 530, and the lid 20 ' And can be supplied to the bonding position WP.

Figure 9 shows a second embodiment of a weld according to the invention.

Referring to FIG. 9, a weld 500 according to the present invention may include a single weld member 540.

The one welding member 540 may be formed in a 'V' shape in which a top is formed. A discharge hole 542b may be formed in the center of the welding member 540 along the vertical direction.

Also, a seating hole 542a may be formed in the valley portion of the welding member 540, and the seating hole 542a may be connected to the exhaust hole 542b.

Then, the welding member 540 is heated to a predetermined temperature by the heating unit 700 as in the above-described embodiment.

Therefore, the lead 20 (see Fig. 10), which is discharged from the lead-waiting base portion 400, drops down to be placed in the seating hole 542a and is changed into a liquid state by the heat of the welding member 540, The lead 20 '(see FIG. 10) may be supplied to the bonding position WP while flowing into the discharge hole 542b and flowing downward.

At this time, the welding member 540 can be vibrated with a predetermined vibration by the vibrator 550 described above.

Accordingly, the present invention can easily control the shape of the solder by supplying the solid lead through the discharge hole while forming the liquid phase through the heated welding member.

Further, since the present invention supplies the lead along the discharge hole in a liquid phase, there is an advantage that the solder ball does not jump to the outer space. Therefore, no separate cleaning operation may be required.

In addition, since the present invention supplies leads in a predetermined size and feeds them in liquid form to the bonding positions, there is an advantage in that the leads can be supplied in a fixed amount at the bonding positions.

Further, since the present invention supplies the leads in a fixed amount to the bonding position, it is possible to prevent the electrical shorting phenomenon accompanying the connection to other bonding positions.

On the other hand, the control unit of the present invention can use a vibrator to provide a constant vibration at the time when the lead passes through the discharge hole.

Therefore, the present invention has an advantage that the molten lead in the liquid phase can be easily dropped along the discharge hole, and the solder shape can be uniformly formed.

Although specific embodiments of the automatic welding equipment according to the present invention have been described above, it is apparent that various modifications can be made without departing from the scope of the present invention.

Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined by the scope of the appended claims and equivalents thereof.

It is to be understood that the foregoing embodiments are illustrative and not restrictive in all respects and that the scope of the present invention is indicated by the appended claims rather than the foregoing description, It is intended that all changes and modifications derived from the equivalent concept be included within the scope of the present invention.

1: Equipment main body 2: Automatic welding unit
100: seat unit 110: seat area
120: Horizontal frame 130: Linear motor
140: sliding module 150:
160: support plate 200: head part
300: a lead supply part 310:
320: lead supply tube 400: lead-
410: reservoir 420: ejector
430: rotating machine 500: welded part
510: operating arm 520: elastic spring
530, 540: welding member 531, 541:
532a and 542a: seating holes 532b and 542b:
550: vibrator 600: control unit
700: heating section

Claims (9)

A lead supply part installed in the head part and supplying a lead of a predetermined size along the lead supply path;
A lead base portion disposed at a lower portion of the lead supply portion, connected to the lead supply passage, for selectively discharging the supplied lead; And
And a welding portion provided in the head portion and applying heat to the selectively discharged lead to discharge the lead in a liquid state along the discharge path to the bonding position,
The welding portion includes a pair of working arms, one end of which is located on the opposite side of the lead waiting portion, a pair of working arms provided on the head portion, and a pair of welding arms which are installed to face each other at the ends of the working arms, And a pair of welding members forming an inclination,
Wherein the discharge passage is a pair of discharge holes formed on the abutting surface of the pair of welding members so as to face the welding position,
Wherein the pair of operating arms are connected to the head portion via a hinge shaft and are elastically connected to each other by an elastic spring,
Each of the operation arms is connected to a vibrator that receives an electrical signal from the outside and forms vibration,
Wherein the vibrator provides a constant vibration to each of the operation arms to transmit the vibration to the respective welding members,
Wherein the welding portion includes a heating portion for providing heat with the welding member,
An iron tip is formed at an end portion of each welding member facing the joining position,
The soldering tip is formed of a ceramic material,
Wherein the lead supply passage is formed through a lead supply tube connecting the lead supply portion and the lead waiting portion,
The leads of a predetermined size are sequentially moved to the lead waiting portion through the lead supply tube,
Wherein the lead supply path forms a curved path,
The soldering tip is formed such that when the pair of welding members are in contact with each other,
The temperature of the pair of welding members is measured by each temperature sensor, the measured temperature is transmitted to the control unit,
Wherein the control unit determines whether the temperature of the pair of welding members has reached a set temperature,
Wherein the pair of operating arms and the pair of welding members are cooled and held at a predetermined temperature by a cooling method of water-cooling or air-
When the leads are seated on the upper ends of the pair of welding members which are in contact with each other,
The lead is melted in a liquid state by the heat of the pair of welding members heated through the heating portion and the molten liquid lead flows through the pair of discharge holes and is supplied to the bonding position WP,
The vibrator vibrates the pair of operating arms,
Wherein the pair of welding members are oscillated by vibrations transmitted from the pair of operating arms.
The method according to claim 1,
The lead-
A reservoir connected to the lead supply passage and storing the supplied lead,
A discharger provided rotatably at a lower end of the reservoir and having a through hole through which the lead passes,
And a rotator for selectively rotating the discharge unit such that the through hole is exposed to the welding unit by receiving an electrical signal from the outside.
The method according to claim 1,
The welding portion
And a welding member disposed at a lower portion of the lead waiting portion and having a mounting hole in which the discharged lead is temporarily seated, and a discharge hole connected to the mounting hole and forming the discharge passage toward the joint position Wherein said welding unit comprises:
The method according to claim 1,
Wherein the leads are cut to a predetermined length to form a predetermined size.
delete delete delete delete Facility body;
A seating unit installed in the facility body and in which a welding object forms a joint position and is seated;
The automatic welding unit according to any one of claims 1 to 4, which is installed in the facility body. And
And a mobile unit for moving the position of the automatic welding unit.

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