KR20180083485A - Welding apparatus using battery terminal - Google Patents

Abstract

The present invention relates to a welding apparatus for a battery terminal, which comprises a barrel rotatable about the axis of a base material and a welder axially penetrating the barrel. The welder includes a gas supply tube for gas supply from the outside and a welding rod. One side end portion of the welding rod is connected to the gas supply tube. A flame-spraying torch is formed in the other side end portion of the welding rod. When the barrel is rotated, the welder revolves by using, as a radius, the distance of separation from the central axis of the barrel. In the welding apparatus, rotation radius adjustment can be performed by separation distance adjustment, the torch can be rotated perpendicularly to the end face of a welded portion or curved toward the end face side of the welded portion for accurate welding, and the torsion problem of the gas supply tube caused by the revolving of the welding rod can be addressed by welding rod rotation.

Description

[0001] WELDING APPARATUS USING BATTERY TERMINAL [0002]

[0001] The present invention relates to a welding apparatus for a battery terminal, and more particularly, to a welding apparatus for a battery terminal, in which a welding rod spaced from a central axis of a barrel is circularly moved, To a welding apparatus for a battery terminal.

The welding method is a method of heating and melting a metal material at the joint and re-arranging the atomic bonds of two different materials, and the weldability is affected by the structure and operation of the base material and the electrode, and working conditions.

There are arc, gas, special (electron beam, laser) welding methods. Gas welding is a welding method that dissolves the metal of the weld with the heat of combustion of gas, usually neutral flame is used.

The generated temperature is about 3,000 ℃, which is lower than 6,000 ℃ of general arc welding. Therefore, gas welding is used to weld terminals of a battery made of lead having a low melting point.

1, a plurality of compartments 2 are formed in a battery case 1, and a terminal rod 5 made of a lead material electrically connected to the battery compartment 2 is formed in the battery case 1, Is inserted into the terminal tube (6) made of lead and attached to the cover (4), and a part thereof is protruded.

The upper and lower portions of the terminal rod 5 and the terminal tube 6 are heat-melted and integrally welded to each other to form a terminal.

2 is a cross-sectional view showing a configuration in which the terminal rod 5 and the terminal tube 6 are welded.

A molding tube 9 made of stainless steel is inserted in close contact with the inner surface of the screw hole 8 formed from the bottom surface of the mold 7 and a bulging type flame hole 10 is formed in the upper portion thereof.

A cooling water circulation hole (11) for cooling the molding tube (9) is formed around the molding tube (9).

When the combined terminal rod 5 and the terminal tube 6 are inserted into the molding tube 9 and the flame is applied to the expansion type flame 10, the upper end portion of the terminal rod 5 and the terminal tube 6 Is heated and melted and is integrally welded to form a terminal.

Since the cross section of the weld between the terminal rod (5) and the terminal tube (6) is circular, it is necessary to uniformly heat the torch along the base material in order to improve the weldability. Conventionally, a device for rotating a torch or a nozzle by welding has been developed, but the development of a welding device for welding a battery terminal has been limited.

Patent Document 1 is a continuous rotary welding apparatus in the prior art.

However, the welding apparatus of Patent Document 1 is not suitable for welding the battery terminal because the welding apparatus is inserted into the inside of the pipe, the nozzle rotates inside the pipe and moves up and down.

This is because there is no space for placing the storage battery by the rotary operation portion 40 and the vertical transfer portion 30. [

When the storage battery is mounted on the rotary plate 41, as the rotary plate rotates, the nozzle and the battery rotate integrally, which is similar to the case where the nozzle is fixed.

In addition, when the size of the terminal is different depending on the type of the battery, the turning radius can not be controlled, and thus it can not be used for general purpose.

Patent Document 2 is a welding torch capable of rotating 360 degrees by the conventional technique.

The torch nozzle unit 10 is curved outward and is connected to a rotatable connection member 20 so that the connecting member rotates to thereby rotate the curved torch nozzle unit 10.

However, since the torch nozzle portion 10 is curved to the outside of the base material, there is a problem that the welding portion between the terminal rod 5 and the terminal tube 6 can not be targeted accurately.

That is, in order to improve the weldability of the battery terminal, the torch is curved inward and should be circularly moved close to the end surface of the base material. On the other hand, according to the welding torch of Patent Document 2, There is a problem that welding can not be accurately performed on the welded portion.

Also, the problem of Patent Document 1 which can not be universally used for all the battery terminals is also intact.

Patent Document 1: Published Patent Application No. 2010-0128925 (Published Dec. 08, 2010) Patent Document 2: Registration No. 0777054 (published on Nov. 20, 2007)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems of the prior art, and it is an object of the present invention to provide a gas supply apparatus capable of rotating along a base material (battery terminal), adjusting a turning radius thereof, The present invention relates to a battery terminal welding apparatus.

According to an aspect of the present invention, there is provided a welding apparatus including a welding apparatus for axially passing a barrel and a barrel rotatable about a central axis of a base material,

The welding machine includes a gas supply tube to which a gas is supplied from the outside, a welding rod having one end connected to the gas supply tube and the other end formed with a torch for emitting a flame,

When the barrel is rotated, the welding machine is characterized by revolving the barrel at a distance away from the center axis of the barrel.

Further, the welding apparatus further includes a sliding portion which is slidably coupled to one side of the barrel and through which the welding machine passes. The barrel has holes formed in the barrel so as to extend radially from the central axis of the barrel. And the distance between the welder and the center axis of the barrel is changed by the sliding of the sliding portion, so that the radius of revolution can be controlled.

In addition, the apparatus further includes a screw adjusting portion including a female screw hole formed on the other side of the barrel and a male screw threadably engaged with the female screw hole, and the end portion of the male screw abuts against the sliding portion, and the sliding portion slides when the male screw is inserted.

Further, the welding machine is characterized in that the gas supply tube is prevented from twisting due to revolving through the sliding portion so as to be rotatable.

The torch is connected to the welding rod so that the torch can be bent.

According to the present invention, since the welding rod is disposed to be spaced apart from the middle axis of the rotating barrel, the welding rod can be rotated and the turning radius can be adjusted by adjusting the separation distance.

Further, since the torch rotates integrally with the welding rod, the torch can be rotated perpendicularly to the end surface of the base material or curved in the direction of the end surface of the base material, so that the torch can be precisely welded.

Also, the problem of twisting of the gas supply tube caused by the idling of the electrode was solved by rotating the electrode.

1 is a perspective view showing a battery.
2 is a cross-sectional view showing a terminal portion of a battery when welding a silver battery.
3 is a cross-sectional view of a welding apparatus according to a preferred embodiment of the present invention.
5 is a perspective view of a welding apparatus according to a preferred embodiment of the present invention.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components, and the same reference numerals will be used to designate the same or similar components. Detailed descriptions of known functions and configurations are omitted.

Hereinafter, a welding apparatus 100 according to a preferred embodiment of the present invention will be described with reference to Figs. 3 and 4. Fig. FIG. 3 is a cross-sectional view of a welding apparatus according to a preferred embodiment of the present invention, and FIG. 4 is a perspective view showing a welding apparatus in which a sliding portion 130 according to a preferred embodiment of the present invention is disassembled.

A welding apparatus according to a preferred embodiment of the present invention may include a welder 110, a sliding portion 130, a thread adjusting portion 140, a welder 150, and a power portion 160.

The ball 110 includes a case 114 that encloses the barrel 112 and the barrel 112 and a ball bearing 112 that is disposed between the barrel 112 and the case 114 so that the barrel 112 can rotate. . ≪ / RTI >

The case 114 is in the form of a cylinder surrounding the barrel 112 and is a casing. Further, the barrel 112 is fixed to the support plate 118 so that the barrel 112 can rotate smoothly.

The barrel 112 is housed inside the case 114 and has a cylindrical shape. The center axis coincides with the center axis of the battery terminal. That is, the center axis of the barrel 112 coincides with the axis of the base material.

An extension hole 119 extending radially outward from the center axis of the barrel 112 is formed in the barrel 112. The sliding portion 130 to be described later is inserted into the extension hole 119 and penetrates the barrel 112, so that the sliding portion 130 can move in the extended direction of the extension hole 119.

At the lower end of the extension hole 119, a support rail 121 is formed. Sectional area smaller than the upper cross-sectional area of the extension hole 119 at the step formed in the extension hole 119.

The support rail 121 supports the sliding portion 130 to prevent the sliding portion 130 from dropping through the extended hole 119 and to prevent the sliding portion 130 from sliding in the rotation axis of the barrel 112 A guide capable of moving outward in the direction is provided.

Since the cross-sectional area of the support rail 121 is larger than the cross-sectional area of the welding rod 153, the welding rod 153 can penetrate through the extending hole 119 as it is.

The welder 150 integrated with the sliding part 130 may move along the extended hole 119 by sliding the sliding part 130 and be separated from the central axis of the barrel 112. [

Thereafter, when the barrel 112 rotates to rotate, the welder 150 revolves around the axis of the barrel 112 with the separation distance being a radius.

That is, since the distance from the axis of the battery terminal revolves at a radius, accurate and even welding is possible.

The barrel 112 is formed with a first stroke 123 along the outer circumference and connected to the second stroke 166 of the power unit 160 to be described later.

The barrel 112 and the case 114 are connected by a bearing 116. The former bearing 116 may be a known bearing, and in the preferred embodiment of the present invention, a ball bearing is used.

Accordingly, when the barrel 112 is rotated by applying the rotational power to the barrel 112 in a state where the K 114 is fixed, the barrel 112 rotates to rotate.

The sliding portion 130 may include a can 132 that is a sheath and a sliding portion bearing 134 disposed between the can 132 and the welding rod 153 to enable the welding rod 153 to rotate.

The can 132 is cylindrical in shape as a jacket and a part of the lower portion is accommodated in the extension hole 119 of the barrel 112. Further, it can be supported by the support rails 121, guided and slidable. Therefore, the barrel 112 and the sliding portion 130 are slidingly engaged with each other.

Since the can 132 is restrained by the inner wall of the extension hole 119 except for the sliding movement direction, when the barrel 112 is rotated, the can 132 rotates integrally therewith.

The welder 150 passing through the can 132 and the barrel 112 sequentially moves along the extension hole 119 formed in the barrel 112 by the sliding movement of the sliding portion 130, And is spaced apart from the central axis to form an eccentricity.

At the center of the can 132, a sliding bearing part 134 is formed.

The sliding part bearing 134 may be a known bearing, but the ball bearing is used in the preferred embodiment of the present invention.

Thus, the welder 150 passes through the can 132 and is formed integrally with the can 132 to enable rotational movement in rotation.

The screw adjusting portion 140 may include a lever 141, a male screw 142, and a female screw hole 144. [

The lower part of the sliding part 130 is accommodated in the extended hole 119 but is tightly received as if it is tightly coupled. Therefore, the screw adjusting part 140 is required to smoothly move the sliding part 130. In addition, the screw adjusting part 140 may serve to precisely adjust the eccentric distance of the welding machine.

The female screw hole 144 is formed on the side surface of the barrel 112, and more preferably, it may be formed opposite to the side where the extension hole 119 is formed.

The male screw 142 is screwed with the female screw hole 144. The right end portion of the male screw 142 abuts the left surface of the can 132 and the lever 141 is formed at the left end portion thereof.

The lever 141 serves to facilitate the user to turn the screw.

When the male screw 142 is engaged, the male screw 142 pushes the sliding part 130 to slide.

Therefore, the spacing distance between the welder 150 and the center axis of the base material (battery terminal) is increased by the thread adjusting portion 140, and the spacing distance can be accurately adjusted.

The welding machine 150 includes a gas supply tube 152 for supplying gas from the outside and a welding rod 152 having one end connected to the gas supply tube 152 and the other end formed with a torch 154 through which a flame is injected 153). Description of the same components as those of the known gas welder will be omitted.

The welding rod 153 passes through the can 132 and the barrel 112 in order and can rotate with the can 132 and can rotate with the barrel 112 and can be rotated by the extension hole 119, As shown in FIG.

The torch 154 may be coupled to the electrode by the spherical connector 155 to be curved in the horizontal direction.

The power unit 160 is a device that provides power to rotate the barrel 112, and all known power devices can be used, but in the preferred embodiment of the present invention, the motor 162 is used.

A second stroke 166 is formed on the shaft 164 of the motor 162. As described above, the second stroke 166 is connected to the first stroke 123 and the chain 168, The second stroke 166 is rotated by the rotational power of the first stroke 123 and the first stroke 123 connected to the chain 168 is rotated so that the barrel 112 integrally formed with the first stroke 123 rotates .

Hereinafter, with reference to FIG. 5, operation procedures and effects of the welding apparatus according to the preferred embodiment of the present invention will be described.

5 is a view showing that the welder moves together with the sliding portion to generate eccentricity.

The axis of the barrel 112 coincides with the center axis of the circular cross section of the joint portion (hereinafter referred to as weld portion) between the terminal rod 5 and the terminal tube 6 and the torch 154 is normally positioned on the center axis of the cross- do.

When the lever 141 of the screw adjusting part 140 is turned to weld the male screw 142 at the time of welding, the sliding part 130 which is in contact with the male screw 142 slides along the supporting rail 121 from left to right.

Since the cross-sectional radius of the weld varies according to the type of the battery, it is necessary to adjust the radius of the weld to move the sliding part 130.

When the sliding portion 130 slides, the welder 150 integrated with the sliding portion 130 moves as well. Since the extension hole 148 is formed in the barrel 112 in accordance with the movement direction of the welder 150, the movement of the welder 150 is not restricted by the coupling relationship with the barrel 112.

The welding machine 150 moves to the position where the eccentricity is generated from the base material (battery terminal) and the central axis of the barrel 112 by the above-described operation.

6 is a view showing the welding machine revolving.

When the motor 162 of the power section 160 rotates, the second stroke 166 connected to its shaft 164 is rotated. The first stroke 123 and the second stroke 166 are connected by the chain 168 forming the closed loop so that the first stroke 123 rotates in the same direction as the second stroke 166. [

The barrel 112 is subjected to the rotational force by the first stroke 123 and is connected to the case 114 by the common portion bearing 116 so that both ends are free. The case 114 is fixed by a support base 118 and serves to support the barrel 112 to rotate smoothly.

When the barrel 112 rotates, the electrode rod 153 coupled to the barrel 112 is rotated about the center axis of the barrel 112. More specifically, the length corresponding to the distance that the sliding portion 130 slides (distance from the center axis) about the axis of the welded portion (barrel axis) is revolved with a radius.

Thus, according to a preferred embodiment of the present invention, the torch 154 of the welder 150 can be accurately and uniformly welded along the weld, and the radius of revolution can be adjusted according to the size of the other terminal depending on the type of the battery , And can be used universally.

Fig. 7 is a view showing that the torch is curved and welded. Fig. By bending the torch as shown in Fig. 7, the welded portion can be more precisely targeted. That is, it is possible to macroscopically move the welding rod 153 to revolve, and microscopically adjust the directionality of the torch 154 to eliminate the error rate of the welding.

According to Korean Patent No. 10-0777054, since only the nozzle rotates, when the welded portion has a circular cross-section like the battery terminal, the nozzle is targeted to the outside of the circular cross-sectional shape, so that accurate welding is more impossible.

However, according to a preferred embodiment of the present invention, the turning radius at the time of revolution of the welding rod 153 is set slightly longer than the radius of the circular section of the weld, and the torch 154 is bent toward the circular section, And furthermore, the torch 154 can be controlled in accordance with the welding part locally, so that the weldability can be improved.

8 is a perspective view showing that the welding rod 153 is rotated to prevent twisting of the gas supply tube 152 in response to twist of the gas supply tube 152 due to revolution of the welder 150. [

As the welding rod 153 revolves, the gas supply tube 152 is subjected to a twisting force in the orbital direction. Therefore, when this is left, the gas supply tube 152 is twisted in the direction of receiving the torsional force.

In the preferred embodiment of the present invention, the welding rod 153 is rotatably inserted into the extension hole 119 of the barrel 112 as described above, and the can 132 is rotated by the sliding portion bearing 134 So that it rotates in a direction opposite to the idle direction in response to idle rotation.

Therefore, no twisting force is generated in the gas supply tube 152, and the twisting of the gas supply tube caused by the revolution can be prevented.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It can be understood that

1: battery case 2: compartment
4: cover 5: terminal rod
6: Terminal tube 7: Mold
10: Flame hole 11: Cooling water circulation hole
110: all balls
112: Barrel 114: Case
116: ball bearings 118: supports
119: extension hole 121: support rail
123: first stroke 130: sliding portion
132: Can 134: Sliding part bearing
140:
142: male thread 144: female thread hole
150: welder 152: gas supply tube
153: welding rod 154: torch
155: spherical joint 160:
162: motor 164: shaft
166: second stroke 168: chain

Claims (5)

A rotatable barrel;
A welder axially passing said barrel,

The welding machine includes:
A gas supply tube for supplying gas from the outside;
And a welding rod having one end connected to the gas supply tube and the other end formed with a torch for emitting a flame,

Wherein when the barrel rotates, the welder revolves at a radial distance away from the center axis of the barrel.
The method according to claim 1,
Further comprising a sliding portion that is slidably coupled to one side of the barrel and through which the welder passes,
Wherein the barrel is formed with a hole extending radially from the central axis of the barrel so that the welder passes through the barrel so as to be movable in the radial direction,
Wherein a distance between a center axis of the welder and a center axis of the barrel is changed by sliding of the sliding part, thereby controlling the radius of revolution.
The method of claim 2,
Further comprising a thread adjusting portion including a female screw hole formed on the other side of the barrel and a male screw threadably engaged with the female screw hole,
Wherein an end portion of the male screw contacts the sliding portion, and when the male screw contacts the sliding portion, the sliding portion slides.
The method according to claim 1,
Wherein the welder is rotatably passed through the sliding portion to prevent twisting from occurring in the gas supply tube by the revolving motion.
The method according to claim 1,
Wherein the torch is connected to the electrode so as to be able to bend.

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