KR101908627B1 - An welding apparatus for tap for used for secondary battery - Google Patents

Abstract

The present invention relates to a cylindrical battery outer tap welding apparatus, including a transfer unit (1) for transferring a cylindrical battery of the tray to a welding portion (3) after stacking a plurality of dedicated trays accommodating a plurality of cylindrical batteries; a welding portion (3) for welding and attaching positive and negative electrode tabs to both end portions of the transferred cylindrical battery; a discharge unit (5) for sorting the welded cylindrical batteries into a good product and a defective product and then discharging the same from the welding portion (3); and a control unit (7) recognizing the defectiveness of the welded cylindrical battery and promoting selective battery discharge of the discharge unit (5). The entire welding process is automatically performed, and thus it is possible to maximize work convenience. In addition, the sorting is automatically performed by means of recognition of the bar code attached to each battery and vision camera imaging in the welding step, and thus economic advantages based on cost reduction can be promoted by the outer tap welding apparatus.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a cylindrical outer tap welding apparatus,

The present invention relates to a cylindrical battery external tap welding apparatus, and more particularly, to a cylindrical battery external tap welding apparatus comprising: a transfer unit (1) for loading a special tray containing a cylindrical battery and transferring the cylindrical battery of the tray to the weld unit; A welding portion (3) for welding the positive electrode tab and the negative electrode tab to one end and the other end both sides of the transferred cylindrical battery; A discharge unit 5 for dividing the cylindrical battery in which the welding work has been completed into a good product and a defective product and discharging the same from the welding unit 3; And a control unit (7) for recognizing whether or not the cylindrical battery having the welded work is good and discharging the selective battery of the discharge unit (5), so that the convenience of the operation due to automatic execution of the entire welding process, The present invention also relates to an external tap welding apparatus which is economically feasible by cost reduction by determining whether a product is good or not through bar code recognition and vision camera filming attached to an individual cell during a welding process.

Wireless earphones, smart phones, and the like have been actively developed and being sold on the market. Also, various kinds of secondary batteries such as a nickel-cadmium battery and a lithium battery are utilized in such portable devices.

Briefly, an exemplary structure of a secondary battery is formed in a substantially cylindrical shape, and positive and negative tabs are formed on upper and lower surfaces. In order to attach the positive anode tab to the secondary battery, a method of welding using a laser is adopted.

In this case, for example, when the positive electrode tab and the negative electrode tab must be formed at a certain angle relative to each other in the secondary battery, the precise position of the secondary battery for laser welding to the correct position should be set.

In addition, since general welding apparatuses are required to have all the components for transporting, welding, and discharging completed batteries, it is impossible to layout the secondary batteries efficiently, and the overall volume of the secondary batteries necessarily increases. This is one factor for reducing the economic efficiency.

In addition, since it is judged by another device or worker whether the finished secondary battery is good or not, another cost increase may be caused.

In order to solve the above-mentioned problems, the inventor of the present invention intends to disclose an improved cylindrical battery external tap welding apparatus.

Korean Patent Laid-Open No. 10-2018-0023634 'Electrode tap welding method of secondary battery and electrode tap welding structure therefor'

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art,

It is an object of the present invention to provide a cylindrical battery external tap welding apparatus which automatically distinguishes whether or not a cylindrical battery is discharged from a welded portion, thereby facilitating work and achieving economical efficiency.

In addition, the present invention can be achieved by taking and determining whether the positive and negative electrode tabs welded through the first and second good quality determining units in the positive and negative electrode tab welding processes are performed and judged by the single device The present invention has been made in view of the above problems.

In addition, the present invention is characterized in that the cylindrical battery formed from the center of the weld portion and horizontally rotated to be fed from the transfer portion is sequentially transferred to the positive electrode tab weld portion, the first good portion determining portion, the negative electrode tab weld portion and the second good- And it is an object of the present invention to provide a cylindrical battery external tap welding apparatus which does not require a star transfer device.

According to another aspect of the present invention, there is provided a battery pack including first and second battery insertion grooves formed in a vertical direction for inserting a cylindrical battery into first and second projecting portions of a fixed transfer portion, So that the process yield can be further increased.

In addition, the present invention provides a reversible device for vertically reversing operation of a cylindrical battery fixed to a fixed transferring part when a negative electrode tab is welded on a lower surface of a cylindrical battery having a positive electrode tab welded on its upper surface, And it is an object of the present invention to provide a cylindrical battery external tap welding device which is provided on the upper side of the apparatus to minimize the layout convenience and the height of the apparatus.

In addition, according to the present invention, since the stationary transfer part includes the opening / closing part, when the other device presses the corresponding opening / closing part, the first and second battery insertion grooves are opened and the inserted cylindrical battery can be taken out, And to provide a cylindrical battery external tap welding device capable of preventing the battery from falling off.

In addition, the present invention is a cylindrical battery, in which both ends of a cylindrical battery are partially inserted into the inside and outside surfaces of a second take-out part to prevent a cylindrical battery inserted during transportation using the second take-out part from being separated from the second take- And an external tap welding apparatus.

The present invention also provides a cylindrical battery external tap welding method for preventing detachment and shaking of a tray that is seated on a bottom plate to prevent detachment of a stored cylindrical battery from a tray, The purpose of the device is to provide.

In addition, the present invention includes a sensing unit formed on one side of an upper portion of the stacking unit, wherein the multi-stacked trays recognize a tray loaded at the top when the guide unit is lifted by the guide unit and stop the lifting operation of the ascent / descent unit, The present invention also provides a cylindrical battery external tap welding apparatus for performing sophisticated transfer through a cylindrical battery.

In order to achieve the above-mentioned object, the present invention can be implemented by the following embodiments.

According to an embodiment of the present invention, there is provided a cylindrical battery external tap welding apparatus according to the present invention, comprising: a transfer unit for loading a special tray accommodating a cylindrical battery and transferring the cylindrical battery housed in the tray to a weld; A weld portion for welding the positive electrode tab and the negative electrode tab to upper and lower surfaces of the conveyed cylindrical battery; And a discharge unit for separating the cylindrical battery from the welded unit and discharging the cylindrical battery from the welded unit.

According to another aspect of the present invention, there is provided a cylindrical battery external tap welding apparatus comprising: a battery supply unit for supplying a cylindrical battery supplied from the transfer unit to a rotary transfer unit; A rotary transfer unit formed at the center of the hermetic unit and horizontally rotationally moved by a drive unit so that the supplied cylindrical cells can be rotated and transferred together; A positive electrode tab welded part positioned on the upper side of the cylindrical battery to be rotationally transferred and laser welding the positive electrode tab to the upper surface of the cylindrical battery; A first good quality judging unit for judging the suitability of welding of the welded positive electrode tab and judging whether it is good or not; A negative electrode tab welded portion located on the upper side of the cylindrical battery to be rotated and laser welding the negative electrode tab to the lower surface of the cylindrical battery; And a second good quality judging unit for judging the adequacy of welding of the welded negative electrode tab and judging whether or not the welding is performed.

According to another embodiment of the present invention, the rotary transfer unit provided in the cylindrical battery external tap welding apparatus according to the present invention comprises a rotary plate formed in the shape of a disk at the center of the welded portion and horizontally rotationally moved by a drive device; And a stationary transfer part spaced apart from the rotation plate along one side of the upper surface of the rotation plate to fix and transfer the cylindrical battery supplied from the battery supply part.

According to another embodiment of the present invention, the fixed transferring part provided in the cylindrical battery external tap welding apparatus according to the present invention is formed to protrude from one side of the upper surface of the rotating plate in a direction away from the center of curvature of the rotating plate, And a first battery insertion groove formed in the vertical direction so as to allow the cylindrical battery to be fitted to the center of the insertion portion, A first protrusion; And an inclined portion which is away from the center of curvature of the rotary plate from the other side of the upper surface of the rotary plate and which is further inserted into the rotary plate side from the outermost surface farthest from the center of curvature of the second projecting portion is formed, And a second protrusion which is separated from the first protrusion in the horizontal direction, the second protrusion including a second battery insertion groove formed in a vertical direction so that the first protrusion can be inserted.

According to another embodiment of the present invention, the fixed transferring part provided in the cylindrical battery external tap welding apparatus according to the present invention includes a central groove part formed by being separated by the first and second projecting parts; And an opening and closing unit which is located on the outer surface side of the first and second projections and opens and closes the first and second battery insertion grooves formed on the projections by engaging with the first and second projections, .

According to another aspect of the present invention, there is provided a cylindrical battery external tap welding apparatus according to the present invention, wherein the transfer unit is fixed to a stationary transfer unit, And an inverting device for enabling vertical inversion.

According to another embodiment of the present invention, the welded portion provided in the cylindrical battery external tap welding apparatus according to the present invention is fixed to the stationary transfer portion and welded to the lower portion of the cylindrical battery, The reversing device according to claim 1, further comprising: an inverting body that rotates together with a forward movement to a stationary transferring portion located forward by the driving device; An inverted protruding portion protruding from the surface of the inverted body portion facing the fixed transfer portion to the fixed transfer portion; And a groove insertion portion formed at a distal end side of the inverted protrusion portion in a shape complementary to the central groove portion and inserted and released in the central groove portion.

According to another embodiment of the present invention, the battery supply unit provided in the cylindrical battery external tap welding apparatus according to the present invention includes a pair of bobbins extending downwardly and spaced apart in a length similar to that of the cylindrical battery, And a second take-out unit operable to move upward and downward by the apparatus and rotate at an angle of 90 degrees. In order to allow both ends of the cylindrical battery to be partially inserted into the inner surface of the booklet, And a fixing groove is formed.

According to another aspect of the present invention, there is provided a cylindrical battery external tap welding apparatus according to the present invention, wherein the transfer unit comprises: a loading unit for sequentially loading trays containing cylindrical batteries by an operator; A fixing conveyance unit for fixing and horizontally conveying a tray stacked on the uppermost one of the multi-stacked trays to the loading unit to be seated on the loading unit; A charging unit for taking out the cylindrical battery housed in the conveyed tray and transferring the cylindrical battery to the conveyor side; And a conveyor for conveying the cylindrical battery supplied from the charging part to the welding part side and having a plurality of recessed grooves formed on the upper surface in a shape complementary to the cylindrical battery along the longitudinal direction.

According to another embodiment of the present invention, the loading unit provided in the cylindrical battery external tap welding apparatus according to the present invention includes a tray mounted on an upper surface thereof, and a lower surface coupled with the ascent and descent unit, Descending bottom plate; A guiding portion formed to surround the edge portions of the bottom plate and guiding the stacking of the trays; And a lifting / lowering portion for lifting and lowering the bottom plate.

According to another embodiment of the present invention, the stacking portion provided in the cylindrical battery external tap welding apparatus according to the present invention is formed on the upper side of the stacking portion, and when the multi-stacked trays are raised by the upward movement of the guide portion, And a sensing unit for recognizing the loaded tray and stopping the ascending operation of the ascending and descending portion.

The present invention has the following effects with the above-described configuration.

The present invention can automatically discriminate whether or not the battery is good when discharging the cylindrical battery from the welded portion, thereby achieving the convenience of the operation and the economical efficiency.

In addition, the present invention can be achieved by taking and determining whether the positive and negative electrode tabs welded through the first and second good quality determining units in the positive and negative electrode tab welding processes are performed and judged by the single device The effect can be shown.

In addition, the present invention is characterized in that the cylindrical battery formed from the center of the weld portion and horizontally rotated to be fed from the transfer portion is sequentially transferred to the positive electrode tab weld portion, the first good portion determining portion, the negative electrode tab weld portion and the second good- There is an effect that a star transfer device is not required.

According to another aspect of the present invention, there is provided a battery pack including first and second battery insertion grooves formed in a vertical direction for inserting a cylindrical battery into first and second projecting portions of a fixed transfer portion, So that the process yield can be further increased.

In addition, the present invention provides a reversible device for vertically reversing operation of a cylindrical battery fixed to a fixed transferring part when a negative electrode tab is welded on a lower surface of a cylindrical battery having a positive electrode tab welded on its upper surface, All of which are provided on the upper side of the apparatus, so that the layout convenience and the height of the apparatus are minimized.

In addition, according to the present invention, since the stationary transfer part includes the opening / closing part, when the other device presses the corresponding opening / closing part, the first and second battery insertion grooves are opened and the inserted cylindrical battery can be taken out, And an effect of enabling separation can be derived.

In addition, the present invention is advantageous in that both ends of the cylindrical battery are partially inserted into the inside and outside sides of the second take-out unit to prevent the cylindrical battery inserted during the transportation using the second take-out unit from being separated from the second take- see.

In addition, the present invention has a guide portion formed to surround each corner portion of the bottom plate in the loading portion, thereby preventing the tray from being detached and shaking from being seated on the bottom plate, thereby preventing detachment of the accommodated cylindrical battery.

In addition, the present invention includes a sensing unit formed on one side of an upper portion of the stacking unit, wherein the multi-stacked trays recognize a tray loaded at the top when the guide unit is lifted by the guide unit and stop the lifting operation of the ascent / descent unit, So that it is possible to achieve a precise transfer through the conveying path.

Further, in addition to the effects described above, the effects that will be apparent to those skilled in the art through the entire contents of the present specification should also be considered.

1 is a perspective view of a cylindrical battery external tap welding apparatus according to an embodiment of the present invention;
Figure 2 is a block diagram of the welding apparatus according to Figure 1;
3 is a perspective view of the conveyance unit according to Fig. 1;
Figure 4 is a perspective view of the loading part according to Figure 3;
Figure 5 is a reference view of the stationary transfer according to Figure 3;
FIG. 6 is a reference view of the input unit according to FIG. 3; FIG.
Figure 7 is a plan view of the conveyor according to Figure 3;
Figure 8 is a plan view of the weld according to Figure 1;
9 is a reference view of the battery supplying part according to Fig. 8;
FIG. 10 is a reference view of the rotary transfer unit according to FIG. 8; FIG.
Figure 11 is an enlarged view of the stationary transfer section according to Figure 8;
12 is an enlarged view of the recognition unit according to Fig. 8;
13 is an enlarged view of the first and second good quality judging units according to FIG. 8;
14 is an enlarged view of the inverting apparatus according to Fig.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments of the present invention can be modified in various forms, and the scope of the present invention should not be construed as being limited to the following embodiments, but should be construed on the basis of the matters set forth in the claims. Further, the present embodiment is only provided as a reference for more fully illustrating the present invention to those skilled in the art.

It should be noted that the configurations of 'first', 'second', or 'third' below are merely expressed for convenience of description, It should be noted that this is not the case.

[0030] Finally, prior to describing the cylindrical battery external tap welding apparatus according to the present invention, a cylindrical battery is formed in a cylindrical shape as a whole, and has a positive electrode tab at one end (for example, Means a battery in which a negative electrode tab is welded and a barcode for recognizing the battery is laser-marked on one side of the side portion. For example, the battery is preferably a cylindrical ultra-small cell.

1 is a perspective view of a cylindrical battery external tap welding apparatus according to an embodiment of the present invention; Figure 2 is a block diagram of a welding apparatus according to Figure 1; 1 and 2 will be referred to in the following.

Referring to FIGS. 1 and 2, a cylindrical battery external tap welding apparatus according to an embodiment of the present invention includes a cylindrical battery, a cylindrical battery, and a cylindrical battery. (1); A welding portion (3) for welding the positive electrode tab and the negative electrode tab to one end and the other end both sides of the transferred cylindrical battery; A discharge unit 5 for dividing the cylindrical battery in which the welding work has been completed into a good product and a defective product and discharging the same from the welding unit 3; And a control unit (7) for recognizing whether or not the cylindrical battery having the welded work is good and discharging the selective battery of the discharge unit (5), so that the convenience of the operation due to automatic execution of the entire welding process, The present invention also relates to an external tap welding apparatus which is economically feasible by cost reduction by determining whether a product is good or not through bar code recognition and vision camera filming attached to an individual cell during a welding process.

The tray described above may be formed in a continuous shape, for example, n rows / m rows, so as to accommodate the cylindrical battery. At this time, the maximum number of batteries that can be accommodated in one tray is n * m. Also, the number of formed recessed shapes is arbitrary.

3 is a perspective view of the conveyance unit according to Fig. 1; Figure 4 is a perspective view of the loading part according to Figure 3; Figure 5 is a reference view of the stationary transfer according to Figure 3; FIG. 6 is a reference view of the input unit according to FIG. 3; FIG. Figure 7 is a plan view of the conveyor according to Figure 3;

1 and 3, the transfer unit 1 has a structure in which a dedicated tray containing a cylindrical battery is mounted on one side and a cylindrical battery of the tray is transferred to the weld 3, A stationary transfer section 13, a charging section 15, and a conveyor 17. The stationary transfer section 13,

3 and 4, the loading unit 11 includes a bottom plate 111, a guide unit 113, a lifting unit 115, A driving motor 117, and a sensing unit 119. [

The bottom plate 111 is configured such that a tray is seated on the upper surface thereof and the lower surface thereof is engaged with the ascending and descending portion 115 and moved up and down together with the operation of the ascending and descending portion 115. For example, when the tray is a rectangular plate, the bottom plate 111 may be formed of a rectangular plate, and the size of the bottom plate 111 may be substantially similar to that of the tray. But is not limited thereto.

When the operator places the tray, the bottom plate 111 is raised to a predetermined position by the lifting and lowering operation of the lifting and lowering part 115 for the sake of convenience of operation. After the tray is settled, The bottom plate 111 descends again so as to facilitate easy loading.

The guiding portion 113 is configured to surround the corner portions of the bottom plate 111 to guide the loading of the tray. For example, in order to enclose the four corners of the rectangular bottom plate 111, a planar shape is formed on each of the corners so as to extend upwardly from the bottom of the tray 111, 11).

The ascending / descending portion 115 is configured to engage with the lower surface of the bottom plate 111 to enable the bottom plate 111 to move up and down. Therefore, when the operator inserts the tray into the inner space formed by the guide portion 113, the bottom plate 111 moves upward due to the ascending and descending operations of the ascending and descending portion 115, and the inserted tray is easily seated and stored Cylindrical cells can be fixed in the tray without shaking. Further, when the trays are loaded, it is possible to move up and down again to a predetermined position after the lowering operation.

The drive motor 117 is configured to enable the ascending and descending operation of the ascending and descending portion 115.

One or more sensing units 119 are formed on one side of the upper portion of the loading unit 11. When the multi-stage loaded trays are raised by the upward movement of the guide unit 113, the sensing unit 119 recognizes the tray loaded on the uppermost portion, Is stopped. In this way, since the tray placed at the uppermost position is always located at the same height by the sensing unit 119, the trays loaded on the uppermost portion of the stationary transfer unit 13 can be easily transferred to the loading unit 15 .

3 and 5, the fixed transfer unit 13 has a structure in which a tray mounted on the uppermost one of the multi-stage trays mounted on the loading unit 11 is fixed and horizontally conveyed to be seated on the loading unit 15 . For this purpose, the fixed transfer section 13 may include a fixed plate 131, a connecting section 133, a guide transfer section 135, and a guide rail 137.

The fixing plate 131 is configured to contact both sides of the tray loaded at the top and fix the tray. For example, the fixing plate 131 may include a horizontal plate 131a extending in the horizontal direction; A vertical plate 131b extending downward from an outer end of the horizontal plate 131b; And a lower plate 131c extending inward from the lower end of the vertical plate 131b. The lower plate 131c is formed in a 'C' shape as a whole. Thus, the lower side of the uppermost tray is seated by the lower plate 131c, and the side of the tray is brought into contact with the inner side of the vertical plate 131b. For example, the fixing plate 131 may be formed on the left side or the right side to form a total of two fixing plates 131, but the fixing plate 131 is not limited thereto.

The connecting portion 133 has a configuration in which one end is fixed to the fixed plate 131 and the other end is coupled to the guide conveying portion 135. For example, the guide conveying unit 135 is connected to the inner side of the two fixing plates 131 at one end and the guide conveying unit 135 at the other end thereof coupled to the guide rail 137, So that the fixing plate 131 can be horizontally transported together when moving.

The guide transfer unit 135 is coupled with the guide rail 137 and horizontally transferred along the extending direction of the guide rail 137.

More specifically, the guide rail 137 is extended from the loading section 11 toward the loading section 15 so that the tray fixed to the holding plate 131 is moved from the loading section 11 to the loading section 15, As shown in Fig.

3 and 6, the charging unit 15 is configured to take out the cylindrical battery accommodated in the transported trays and transfer the same to the conveyor 17. To this end, the first take-out unit 151, the body unit 153 ), A conveyor transfer guide part 155, and a fixed frame 157 may be formed.

The first take-out unit 151 is configured to take out and fix the cylindrical battery accommodated in the tray by moving downward, and the lower end side is formed similarly to the shape of the gripper. In addition, when the trays are formed in n rows, n take-outs 151 are also formed for convenience of operation. The first take-out part 151 descends to pick up the cylindrical battery of the tray and then the take-out part 151 moves along with the horizontal movement of the body part 153, (17).

The body portion 153 is configured such that one side is directly or indirectly coupled to one or more first take-out portions 151 and the other side is directly or indirectly coupled to the conveyer transfer guide portion 155.

The conveyor conveyance guide section 155 is configured to be coupled to the stationary frame 157 to horizontally reciprocate the charging section 15 and the conveyor 17. Accordingly, the body portion 153 coupled to the conveyor conveyance guide portion 155 can also reciprocate at the corresponding position.

The fixed frame 157 includes a vertical frame 157a extending upward from one side of the loading unit 15 and a horizontal frame 157b extending from the inner side of the vertical frame 157a toward the conveyor 17 side . A guide rail may be formed along the extending direction of the horizontal frame 157b. Accordingly, the conveyor transfer guide part 155 coupled to the horizontal frame 157b can reciprocate along the guide rail.

3 and 7, the conveyor 17 is configured to transfer the cylindrical battery supplied from the charging unit 15 to the weld 3, and more particularly, to the take-out unit 151 The cylindrical battery is supplied. In addition, the conveyor 17 is formed with a large number of recessed grooves on its upper surface along the longitudinal direction, which are complementary to the cylindrical battery. Therefore, each cylindrical battery provided from the take-out portion 151 is inserted into the recessed groove and is movable toward the welded portion 3 side.

Figure 8 is a plan view of the weld according to Figure 1; 9 is a reference view of the battery supplying part according to Fig. 8; FIG. 10 is a reference view of the rotary transfer unit according to FIG. 8; FIG. 11 is an enlarged view of the stationary transfer part according to Fig. 10; 12 is an enlarged view of the recognition unit according to Fig. 8; 13 is an enlarged view of the first and second good quality judging units according to FIG. 8; 14 is an enlarged view of the inverting apparatus according to Fig.

Referring to FIGS. 1 and 8, the welding portion 3 is constructed such that the positive electrode tab and the negative electrode tab are welded to one end and both ends of the other end of the conveyed cylindrical battery. For this purpose, the battery supplying portion 31, the rotary transfer portion 32, A recognizing unit 33, a positive electrode tab welding unit 34, a first good quality judging unit 35, a reversing device 36, a negative electrode tab welding unit 37 and a second good quality judging unit 38 . The positive portion tab weld portion 34, the first good portion determining portion 35, the reversing device 36, the negative electrode tab weld portion 37, and the negative electrode tab weld portion 37 are formed along the rotation direction of the rotary transfer portion 32, It is preferable that the two good quality determination sections 38 are sequentially positioned. The positions of the positive electrode tab weld portion 34 and the negative electrode tab weld portion 37 and the positions of the first good component determiner 35 and the second good component determiner 38 may be mutually changed, to be.

8 and 9, the battery supply unit 31 is configured to supply the cylindrical battery supplied from the transfer unit 1 to the rotary transfer unit 32 side. For this, the battery supply unit 31 may include a second take-out unit 311.

The second take-out part 311 may be formed in the same shape as the first take-out part 151, for example. Specifically, a pair of bobbins 311 extending downward and spaced apart from each other by a distance substantially equal to the length of the mutual cylindrical cells are formed, and both ends of the cylindrical battery are partially inserted into the inner surface of each bobbin 311 A fixing groove 311a having a shape complementary to both ends of the cylindrical battery is formed. First, the operation of the second take-out unit 311 will be described. First, the operation of the second take-out unit 311 is lowered to the conveyor 17 side to take out the cylindrical battery from the concave groove of the conveyor 17. Thereafter, after the lifting operation, it is rotated at an angle of about 90to the rotary transfer section 32 for supply of the cylindrical battery to the rotary transfer section 32 side. This will be described in more detail below.

As described above, the cylindrical battery is supplied in the longitudinal direction (in the direction substantially perpendicular to the paper surface) to the rotary transfer unit 32 side by the rotation operation, and the rotary transfer unit 32 fixes the cylindrical battery in the vertical direction, 33 can relatively easily release the cylindrical battery. In addition, it is needless to say that a precise operation can be ensured by fixing the positioned cylindrical battery by the recognizing unit 33 to the rotary transferring unit 32 side again in the set position.

As shown in the figure, the second take-out part 311 is formed with two pieces, and the cylindrical take-out part 32 is provided on the rotation transfer part 32 side. Two of them should be supplied.

8 and 10, the rotary transfer part 32 is formed on the center side of the welding part 3 and horizontally rotatably moved by the driving device to supply the cylindrical battery to the recognition part, the positive electrode tab welds 35 and 37, And to the first and second good quality determination sections (36, 38). For this purpose, the rotary transfer unit 32 may include a rotary plate 321 and a fixed transfer unit 323. It is not necessary that the welding portions 35 and 37 and the good quality determining portions 36 and 38 are provided with separate transfer devices by the rotary transfer portion 32 so that the layout of the external tap welding machine and the overall size of the apparatus It is possible to prevent the size from becoming larger. In addition, it is also possible to reduce the need for additional parts and thereby improve economy.

The rotary plate 321 is formed on the center side of the welding portion 3, preferably in the form of a disk, and horizontally rotates by a driving device.

Referring to FIG. 11, a plurality of fixed transfer sections 323 are formed along the upper surface of the rotation plate 321 to fix and transfer the cylindrical battery supplied from the battery supply section 31. The fixed transfer portion 323 may include a first protrusion 323a, a second protrusion 323b, a central groove 323c, an opening / closing portion 323d, and a contact portion 323e.

The first protrusion 323a is protruded from the one side of the upper surface of the rotation plate 321 by a predetermined distance in the direction away from the center of curvature of the rotation plate 321. [ The first projecting portion 323a is formed with a recessed portion which is recessed from the outermost surface farthest from the center of curvature toward the rotation plate 321. A cylindrical battery is inserted into the substantially central portion of the recessed portion 323a, The first battery insertion groove 323a-1 is formed.

The second protrusion 323b protrudes from the other side of the upper surface of the rotation plate 321 by a predetermined distance in the direction away from the center of curvature of the rotation plate 321 and is spaced apart from the first protrusion 323a in the horizontal direction . In addition, the second protrusion 323b is also formed with an indented portion that is further embedded from the outermost surface farthest from the center of curvature toward the rotating plate 321. In order to allow the cylindrical battery to be fitted in the center of the recessed portion, The second battery insertion groove 323b-1 is formed.

Therefore, two cylindrical batteries supplied from the second take-out unit 311 can be inserted into the first and second battery insertion grooves 323a-1 and 323b-1 in the vertical direction and rotated. As described above, the advantage of this is that the cylindrical battery positioned by the recognition unit 33 is fixed to the rotary transfer unit 32 side in the set position, thereby ensuring a sophisticated operation.

The central groove portion 323c is a recessed configuration caused by the horizontal separation of the first and second projecting portions 323b. The use of the central groove portion 323c will be described in detail below.

The opening and closing part 323d is located on the outer surface side of the first and second protrusions 323a and 323b and is engaged with the protrusions 323a and 323b to form the first and second battery insertion grooves 323a-1 and 323b- Respectively. That is, after the cylindrical battery is inserted into the insertion grooves 323a-1 and 323b-1, the grooves 323a-1 and 323b-1 are closed and the cylindrical battery is opened when the cylindrical battery is taken out. More specifically, the opening / closing portion 323d is configured so that the opening / closing surface 323d-1 is in contact with the contact portion of the opening / closing portion 323d in a state in which the first and second battery insertion grooves 323a-1 and 323b- The opening face 323d-1 moves outward so that the insertion recesses 323a-1 and 323b-1 are opened.

8 and 12, the recognition unit 33 is configured to recognize the ID number of the barcode attached to the body portion of the conveyed cylindrical battery. The barcode may be, for example, a two-dimensional barcode, but is not limited thereto. In detail, after the recognizing portion 33 presses the contact portion 323d-2 of the cylindrical battery transferred by the rotation of the fixed transfer portion 323, the first and second battery insertion grooves 323a-1, 323a- 323b-1. Thereafter, the barcode attached to the transferred cells is recognized and the barcode information is transmitted to the control unit 7 side. Accordingly, the cylindrical batteries to be transferred are recognized, and after that, the good and defective products are distributed by judging whether they are good or not, so that they can be discharged from the welder.

When the anode and the cathode of the cylindrical battery are formed at a predetermined angle, for example, when the cylindrical battery is designed to have an angle of 68 degrees with respect to the design, the recognition unit 33 rotates the cylindrical battery to set a position suitable for welding So that it can be restored to the fixed transporting unit 323 as it is set after the setting.

For this, the recognition unit 33 may include a pressure take-out unit 331, a fixed holder 333, and a recognition chamber 335.

The pressure take-out portion 331 has a pair of mutually spaced apart configurations for pressing the contact portion 323d-2 to take out the cylindrical battery inserted into the first and second battery insertion grooves 323a-1 and 323b-1 . Therefore, when the stationary transfer part 323 is rotated to the recognition part 33 side, the pressure take-out part 33 moves toward the stationary transfer part 323 and the battery insertion grooves 323a-1 and 323b -1).

The fixed holder 333 is configured to move upward and downward to the inside and outside of the recognition chamber 335 through the through holes in the lower surface of the recognition chamber 335 located between the spaced pressurized extraction portions 331. For example, after the fixed holder 333 is lowered, the cylindrical battery can be lifted by clamping the cylindrical battery from the first and second battery insertion grooves 323a-1 and 323b-1 to be introduced into the recognition chamber 335 . Thereafter, the fixed holder 333 rotates for capturing by the bar code recognition camera located in the recognition chamber 335, thereby setting the proper position of the clamped cylindrical battery.

Thereafter, the fixed holder 333 is lowered and the pressurization take-out unit 331 opens the opening / closing unit 323d after photographing a plurality of times through the barcode recognition camera in the recognition chamber 335. [ Thereafter, cylindrical batteries are inserted again into the battery insertion grooves 323a-1 and 323b-1, and the opening and closing portion 323d closes the insertion grooves 323a-1 and 323b-1.

Referring to FIG. 8, the positive electrode tab weld portion 34 is configured to laser weld the positive electrode tab to the upper surface of the cylindrical battery for the upper side of the cylindrical battery rotated by the fixed transfer portion 323.

Referring to FIG. 13, the first good-quality judging unit 35 is configured to determine whether the cathode tab is laser-welded on the upper surface of the cylindrical battery, which is rotated by the fixed transferring unit 323, For this, a first illumination unit 351 and a first imaging unit 353 may be included.

The first illuminating unit 351 is disposed above the cylindrical battery rotated by the fixed conveying unit 323 and illuminates the upper surface of the cylindrical battery conveyed to the corresponding position. The first photographing unit 353 is located on the upper side of the first illuminating unit 353 to photograph the upper surface of the cylindrical battery and then transmit the photographing information to the control unit 7 side. The appropriate welding determination of the control unit 7 can be made based on, for example, the position and number of the laser welding formed on the positive electrode tab and / or the position of the positive electrode tab at a predetermined position on the upper surface of the cylindrical battery. The first photographing unit 353 may be a vision camera, but is not limited thereto.

8 and 14, the reversing device 36 is fixed to the fixed transferring portion 323, and is capable of reversing the fixed transferring portion 323 in order to weld the negative electrode tab to the lower surface of the cylindrical battery rotating and transferring And may include an inverting body portion 361, an inverted protrusion 363, and a groove inserting portion 365 for this purpose.

The inverting body portion 361 may be formed in a cylindrical shape, for example, in such a manner that the inverting body portion 361 rotates together with the forward movement toward the stationary transferring portion 323 located forward by the driving device.

The inverted protrusion 363 is protruded from the surface of the inverted body portion 361 facing the fixed transfer portion 323 toward the fixed transfer portion 323.

The groove inserting portion 365 is formed at the distal end side of the inverted protrusion 363 in a shape substantially complementary to the central groove portion 323c and inserted into the groove portion 323c. After the groove inserting portion 365 is inserted into the central groove portion 323c, the inverting body portion 361 rotates to invert the fixed feed portion 323. Thereafter, the inverting body portion 361 moves in a direction away from the fixed transferring portion 323, so that the groove inserting portion 365 is inserted from the inverted protrusion 363.

As described above, the negative electrode tab weld portion 37, which will be described later, is positioned on the upper side of the fixed feed portion 323 in the same manner as the positive electrode tab weld portion 35 by vertically inverting the fixed feed portion 323, It is possible to prevent the apparatus from becoming larger than necessary.

Referring to FIG. 8, the negative electrode tab weld 37 is laser welded to the lower surface of the cylindrical battery, which is vertically inverted, on the upper side of the cylindrical battery rotated by the fixed feeder 323.

8 and 13 (the same construction as that of the first good quality judging part), the second good quality judging part 38 has a function of judging whether or not the positive electrode tab is laser-welded on the upper surface of the cylindrical battery rotated by the fixed transferring part 323 And a second illuminating unit 381 and a second photographing unit 383 may be included for measuring the quality. The second illuminating unit 381 and the second illuminating unit 383 have the same configuration as the first illuminating unit 351 and the first illuminating unit 351. Therefore, a detailed description thereof will be omitted.

 Referring to FIG. 1, the discharging unit 5 is configured to separate the good and bad products of the cylindrical battery having been subjected to the welding work and discharge the good and the bad products from the welding unit 3. The control unit 7 can control the operation of the discharging unit 5 based on the information collected from the first and second good quality determining units 36 and 38. [

The foregoing detailed description is illustrative of the present invention. In addition, the foregoing is intended to illustrate and explain the preferred embodiments of the present invention, and the present invention may be used in various other combinations, modifications and environments. That is, it is possible to make changes or modifications within the scope of the concept of the invention disclosed in this specification, within the scope of the disclosure, and / or within the skill and knowledge of the art. The above-described embodiments illustrate the best mode for carrying out the technical idea of the present invention, and various modifications required for specific application fields and uses of the present invention are also possible. Accordingly, the detailed description of the invention is not intended to limit the invention to the disclosed embodiments.

1:
11:
111: bottom plate 113: guide portion
115: ascending / descending portion 117: driving motor
119:
13: fixed transmission
131: Fixing plate
131a: horizontal plate 131b: vertical plate
133: connection part 135: guide transfer part
137: Guide rail
15:
151: First take-out part 153: Body part
155: conveyor conveyance guide part 157: stationary frame
17: Conveyor
3:
31:
311: second take-out part 311a:
32:
321: Rotation plate 323: Fixed transfer part
323a: first protrusion 323a-1: first battery insertion groove
323b: second projection 323b-1: second battery insertion groove
323c: central groove portion 323d: opening /
323e:
33:
331: pressure extraction portion 333: fixed holder
335: recognition chamber
34: Positive electrode tap weld
35: First good goods judgment unit
351: first illumination section 353: first shooting section
36: Reversing device
361: inverting body portion 363: inverted protrusion
365:
37: Negative electrode tab weld
38: second good goods judgment unit
381: second illumination unit 383: second shooting unit
5:
7:

Claims (11)

A transfer unit for loading a special tray accommodating a cylindrical battery and transferring the cylindrical battery stored in the tray to a weld;
A welding portion for welding the positive electrode tab and the negative electrode tab to upper and lower surfaces of the conveyed cylindrical battery; And
And a discharge part for separating the cylindrical battery from the welded part,
The welding portion includes a rotation transfer portion formed at the center side and rotating horizontally,
Wherein the rotary transfer portion is formed in a circular plate shape at the center of the weld portion and rotates horizontally by a driving device; And a stationary transferring unit for transferring a cylindrical battery formed by a plurality of spaced apart portions along one side of the upper surface of the rotating plate,
The stationary transferring portion is protruded in a direction away from the center of curvature of the rotary plate from one side of the upper surface of the rotary plate, a recessed portion is formed to be embedded from the outermost surface of the rotary plate, A first protrusion including a first battery insertion groove formed in a vertical direction so as to allow a cylindrical battery to be fitted to the center of the insertion portion;
And an inclined portion formed to protrude in a direction away from the center of curvature of the rotary plate from the other side of the upper surface of the rotary plate, the depressed portion being embedded from the outermost surface farthest from the center of curvature of the rotary plate toward the rotary plate, And a second protrusion formed on the second protrusion, the second protrusion being spaced apart from the first protrusion in the horizontal direction; And
Wherein the first and second protrusions are disposed on an outer surface side of the first and second protrusions and respectively engage with the first and second protrusions to open and close the first and second battery insertion grooves, And an opening and closing unit including a contact portion for moving the opening and closing face outward to open the first and second battery insertion grooves when the opening face and the outside of the opening are pressed. The method according to claim 1,
Wherein the welding portion includes: a battery supply portion for supplying a cylindrical battery supplied from the transfer portion to a rotary transfer portion;
A positive electrode tab welded part positioned on the upper side of the cylindrical battery to be rotationally transferred and laser welding the positive electrode tab to the upper surface of the cylindrical battery;
A first good quality judging unit for judging the suitability of welding of the welded positive electrode tab and judging whether it is good or not;
A negative electrode tab welded portion located on the upper side of the cylindrical battery to be rotated and laser welding the negative electrode tab to the lower surface of the cylindrical battery;
And a second good-quality determining unit for determining whether the welded anode tab is welded or not and determining whether or not the anode tab is being welded. delete delete delete The method according to claim 1,
Wherein the welding portion further comprises a reversing device fixed to the fixed transfer portion and capable of up-down reversing the fixed transfer portion to weld the negative electrode tab to the lower surface of the cylindrical battery rotating and transferring. Device. The method according to claim 6,
Wherein the reversing device comprises: an inverting body part rotating forward with a movement toward a stationary conveying part located forward by the driving device; An inverted protruding portion protruding from the surface of the inverted body portion facing the fixed transfer portion to the fixed transfer portion; And a groove insertion portion formed in a shape complementary to the central groove portion at a distal end side of the inverted projection and inserted and released in the inside of the central groove portion. 3. The method of claim 2,
And a second takeout part extending downward and including a pair of bobbins spaced apart in a length similar to that of the cylindrical battery and being capable of moving up and down by a drive device and rotating at an angle of 90 degrees,
Wherein an inner side surface of the cylinder head is formed with a fixing groove having a top shape and a distal end of the cylindrical battery so that both ends of the cylindrical battery are partially inserted. The method according to claim 1,
Wherein the transfer unit comprises: a stacking unit for sequentially stacking a tray containing a cylindrical battery by an operator;
A fixing conveyance unit for fixing and horizontally conveying a tray stacked on the uppermost one of the multi-stacked trays to the loading unit to be seated on the loading unit;
A charging unit for taking out the cylindrical battery housed in the conveyed tray and transferring the cylindrical battery to the conveyor side; And
And a conveyor for transferring the cylindrical battery supplied from the charging part to the welding part side and having a plurality of recessed grooves formed in the upper surface thereof in the longitudinal direction in a shape complementary to the cylindrical battery. 10. The method of claim 9,
A bottom plate on which a tray is seated on an upper surface of the loading unit and a lower surface of which is coupled with the ascending and descending portion to move up and down together with the movement of the ascending and descending portion; A guiding portion formed to surround the edge portions of the bottom plate and guiding the stacking of the trays; And a lifting and lowering portion for lifting and lowering the bottom plate. 11. The method of claim 10,
The loading unit further includes a sensing unit formed on one side of the upper portion of the loading unit and recognizing the tray loaded at the uppermost position when the multi-stage loaded trays are lifted by the upward movement of the guide unit and stopping the elevating operation of the loading and unloading unit A cylindrical battery external tap welding device characterized by:

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