CN217412959U - Positioner is used in switching piece welding - Google Patents

Abstract

The application discloses a positioning device for welding an adapter plate, which comprises a positioning bottom plate, a battery cell positioning mechanism and an adapter plate positioning mechanism, wherein the positioning bottom plate is provided with a first positioning base for placing a top cover and a second positioning base for placing a battery cell; the battery cell positioning mechanism comprises first push plate components symmetrically arranged on a first opposite side edge of the positioning bottom plate and second push plate components symmetrically arranged on a second opposite side edge of the positioning bottom plate; the adapter plate positioning mechanism comprises a positioning head, a support and a positioning head mounting seat, wherein the support is used for being fixed on the positioning bottom plate, the positioning head mounting seat is movably connected with the support, the positioning head is fixedly mounted on the positioning head mounting seat, and the adapter plate can be abutted against the positioning bottom plate through the positioning head. The utility model discloses a switching piece positioning mechanism simple structure, the locate mode is nimble, and cooperation electric core positioning mechanism can realize the effective location of switching piece and top cap, when improving welding quality, has reduced manufacturing cost, improves production efficiency.

Description

Positioner is used in switching piece welding

Technical Field

The application relates to the technical field of secondary battery manufacturing, in particular to a positioning device for welding a switching piece.

Background

The square lithium battery has the advantages of simple structure, good shock resistance, high energy density, large monomer capacity and the like, and is always the main direction for manufacturing and developing the lithium battery in China. The adapter plate and the top cover are important components of the square lithium battery, the adapter plate and the top cover need to be welded together in the manufacturing and assembling process of the square lithium battery, and the adapter plate needs to be positioned in the middle of the top cover before welding operation of the adapter plate and the top cover is carried out. However, the traditional cylinder or motor is required to be relied on, the positioning structure becomes complex, the occupied space is large, and the adapter plate can be positioned inaccurately and easily displaced due to the time delay expansion of the cylinder, so that the welding quality is affected.

Disclosure of Invention

The application provides a positioner is used in switching piece welding to solve prior art transfer piece and the unable problem of effectively fixing a position together of top cap. In order to solve the technical problem, the following technical scheme is adopted in the application:

a positioning device for soldering of an interposer comprises:

the positioning bottom plate is provided with a first positioning base for placing the top cover, and second positioning bases for placing the battery cell are arranged on two sides of the first positioning base;

the battery cell positioning mechanism can fix a battery cell on the second positioning base and comprises first push plate assemblies symmetrically arranged on a first pair of side edges of the positioning bottom plate and second push plate assemblies symmetrically arranged on a second pair of side edges of the positioning bottom plate;

the adapter plate positioning mechanism comprises a positioning head, a support and a positioning head mounting seat, wherein the support is used for being fixed on the positioning bottom plate, the positioning head mounting seat is movably connected with the support, the positioning head is fixedly mounted on the positioning head mounting seat, and the positioning head is driven to move by the positioning head mounting seat, so that the adapter plate can be pressed on the positioning bottom plate by the positioning head.

In one embodiment, the positioning head mounting seat is rotatably connected with the bracket through a rotating shaft, a first elastic member is arranged on the rotating shaft, and the first elastic member provides elastic force for the positioning head so that the positioning head presses the adapter plate.

In one embodiment, rollers are arranged on two sides of the positioning head mounting seat, the rollers can slide on the support, and the positioning head mounting seat is slidably connected with the support through the rollers.

In one embodiment, an upright plate is slidably connected to the positioning head mounting seat, the positioning head mounting seat is connected to the upright plate through a second elastic member, and the positioning head moves towards the adapter plate and compresses the adapter plate by an elastic force provided by the second elastic member when the second elastic member resets.

In one embodiment, the first positioning base is provided with a plurality of positioning pins for positioning the top cover on the first positioning base.

In one embodiment, a link mechanism is arranged at the bottom of the cell bottom plate, the link mechanism comprises a connecting rod and a guide plate, one end of the connecting rod is rotatably mounted on the guide plate, and the other end of the connecting rod is rotatably mounted at the bottom of the first push plate assembly.

In one embodiment, the connecting rod can push the first push plate assembly under the action of external force, so that the first push plate assembly is far away from the positioning base plate.

In one embodiment, the link mechanism further includes a third elastic member, the third elastic member is installed between the two first push plate assemblies, and the elastic force provided by the third elastic member when the third elastic member is reset enables the first push plate assemblies to approach the positioning base plate.

In one embodiment, a positioning block is arranged on the first push plate assembly and abuts against the battery core to fix the battery core on the second positioning base.

In one embodiment, the second push plate assembly includes a side plate, a push plate and a guide rod, and the guide plate can push the side plate under the action of external force, so as to drive the guide rod and the push plate, which are fixedly connected with the side plate, to be away from the second positioning base.

Compared with the prior art, the beneficial effects of this application are as follows: through the positioning device for welding the adapter plate, the adapter plate and the top cover are effectively positioned together by applying the torsion spring structure or the cam structure under the condition that the existing space and structural conditions allow, so that the welding quality is improved, the production cost is reduced, and the production efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a top view of a positioning device for soldering an interposer according to the present invention;

FIG. 2 is a front view of a positioning device for soldering an interposer according to the present invention;

FIG. 3 is a schematic structural view of a first push plate assembly in the positioning device for soldering the interposer according to the present invention;

FIG. 4 is a schematic structural view of a second push plate assembly in the positioning device for soldering the interposer according to the present invention;

FIG. 5 is a schematic structural diagram of an interposer positioning mechanism according to an embodiment of the present disclosure;

FIG. 6 is a side view of the interposer positioning mechanism of the embodiment shown in FIG. 5;

FIG. 7 is a schematic structural diagram of an interposer positioning mechanism in another embodiment of the present invention;

FIG. 8 is a top view of the interposer positioning mechanism of the embodiment shown in FIG. 7;

FIG. 9 is a schematic view of a state of the interposer positioning mechanism of the embodiment shown in FIG. 7;

FIG. 10 is a schematic view of another state of the interposer positioning mechanism of the embodiment shown in FIG. 7;

FIG. 11 is a bottom view of the positioning device for soldering the interposer of the present invention;

fig. 12 is a front view of the alignment head of the embodiment of fig. 5.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "middle", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are used only for convenience in describing the present invention and for simplification of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a number" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "upper", "lower", "left", "right" and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

In the battery production process, two electric cores that pair was accomplished are symmetrical to be set up, and the welding has the switching piece between the utmost point ear of two electric cores, and the type of switching piece has the multiple, including integral type switching piece and split type switching piece, need select the switching piece of different grade type according to the welding type of utmost point ear and switching piece. The top cap is placed between the electric core to with adaptor piece welded fastening, with two electric core fifty percent discount, form the battery with the top cap in the lump. Referring to fig. 1, a positioning device for interposer welding is provided, which includes a positioning base plate 100, a cell positioning mechanism 200, and an interposer positioning mechanism 300. This positioner is used for having welded the electric core of switching piece in advance, fixes a position on electric core positioning mechanism to through switching piece positioning mechanism location switching piece to the top cap on, the welding of switching piece and top cap is carried out to the convenience in one process next.

The positioning bottom plate 100 comprises a first positioning base 101 used for placing a top cover, the first positioning base 101 is located in the middle of the positioning bottom plate 100, and second positioning bases 102 used for placing battery cores are arranged on two sides of the first positioning base 101. The first positioning base 101 is provided with a plurality of positioning pins 103 for positioning the top cover on the first positioning base 101. Specifically, a top cover is placed on the first positioning base 100 and is positioned through the positioning pin 103, a battery cell which is welded with the adapter sheet in advance is placed on the second positioning base 102, the battery cell is located on the upper layer of the top cover, and the adapter sheet is aligned to the top cover.

Referring to fig. 1 to 4, a cell positioning mechanism 200 is capable of fixing a cell on the second positioning base 102, and the cell positioning mechanism 200 includes a first push plate assembly 210 symmetrically disposed on a first opposite side of the positioning base plate and a second push plate assembly 220 symmetrically disposed on a second opposite side of the positioning base plate. The first push plate assembly 210 is provided with a positioning block 211, and the positioning block 211 is abutted against the battery cell and used for fixing the battery cell on the second positioning base 102. The second push plate assembly 220 includes a push plate 222, and the push plate 222 abuts against the battery cell to position the battery cell. In this embodiment, the direction in which the first push plate assembly fixes the cell is set as a first direction, i.e., an up-down direction in fig. 1, and the direction in which the second push plate assembly fixes the cell is set as a second direction, i.e., a left-right direction in fig. 1.

In an embodiment, referring to fig. 5 and 6, the interposer positioning mechanism 300 includes a positioning head 301, a bracket 302 for fixing on the positioning base plate 100, and a positioning head mounting base 303 movably connected to the bracket 302, wherein the positioning head 301 is fixedly mounted on the positioning head mounting base 303, and the interposer can be pressed against the positioning base plate 100 through the positioning head 301. Referring to fig. 12, the inner side portion of the front end of the positioning head 301 is stepped to clamp the two sides of the interposer onto the positioning head 301 for positioning.

The positioning head mounting base 303 is rotatably connected with the bracket 302 through a rotating shaft 310, a first elastic member 311 is arranged on the rotating shaft 310, and the first elastic member 311 provides elastic force for the positioning head 301, so that the positioning head 301 compresses the adaptor. In this embodiment, the first elastic element 311 is a torsion spring, which provides a torque for the rotation of the positioning head mounting seat 303 and ensures that the positioning head 301 compresses the adaptor sheet. Specifically, in this embodiment, the adaptor positioning mechanism 300 mainly positions the integral adaptor, and the front end of the positioning head 301 clamps the two sides of the adaptor and compresses the adaptor through the torsion spring structure, so as to prevent the adaptor from deviating.

In another embodiment, referring to fig. 7 to 10, the interposer positioning mechanism 400 includes a positioning head 401, a bracket 402 for fixing on the positioning base board 100, and a positioning head mount 403 movably connected with the bracket 402. The positioning head 401 is fixedly mounted on the positioning head mounting seat 403, and the adapter sheet can be pressed against the positioning bottom plate 100 through the positioning head 401.

Two sides of the positioning head mounting seat 403 are provided with rollers 420, and the rollers slide on the bracket 402 to realize slidable connection between the positioning head mounting seat 403 and the bracket 402. Specifically, the bracket 402 is provided with a guide groove 404, and the roller 420 is installed in the guide groove 404 and moves along the designed track of the guide groove 404. A vertical plate 421 can be further connected to the positioning head mounting seat 403 in a sliding manner, a second elastic member 422 is arranged between the positioning head mounting seat 403 and the vertical plate 421, and the positioning head 401 moves towards the adapter plate by an elastic force provided when the second elastic member 422 resets and compresses the adapter plate. Specifically, the vertical plate 421 is slidably connected to the positioning head mounting seat 403 through a sliding rail, the vertical plate 421 is fixedly connected to the first push plate assembly 210, when the positioning head mounting seat 403 moves rightward along the designed track of the guide groove 404, the positioning head mounting seat 403 is lifted upwards, the positioning head 401 is far away from the adapter sheet, and meanwhile, due to the lifting of the positioning head mounting seat, the second elastic member 422 between the vertical plate 421 and the positioning head mounting seat 403 is stressed. When the positioning head mounting base 403 moves leftward along the track of the guide groove 404, the positioning head mounting base 403 and the positioning head 401 approach the adaptor piece under the elastic force of the second elastic member 422, and press the adaptor piece downward, so as to position the adaptor piece. In this embodiment, the adaptor positioning mechanism 400 is mainly used for positioning a split adaptor, and when the adaptor is positioned, the front ends of the two positioning heads 401 are directly pressed on the adaptor, so that the electric core can be directly folded after the adaptor is welded in the next process.

Referring to fig. 11, a link mechanism 110 is further disposed at the bottom of the cell baseplate 100, the link mechanism 110 includes a link 111 and a guide plate 112, one end of the link 111 is rotatably mounted on the guide plate 112, and the other end of the link 111 is rotatably mounted at the bottom of the first push plate assembly 210. Driving mechanisms (not shown) are further disposed on two sides of the cell bottom plate 100, and can apply an acting force to the guide plate 112, and the driving mechanisms drive the guide plate 112 to move in the reverse direction along the second direction, so as to drive the connecting rod 111 to push the first push plate assembly 210 to move in the reverse direction along the first direction under the action of the guide plate 112, so that the first push plate assembly 210 is far away from the positioning bottom plate 100. Taking fig. 11 as an example, the second direction is a left-right direction, the first direction is an up-down direction, and the driving mechanism drives the two guide plates 112 to move back, i.e., the left guide plate 112 moves left, and the right guide plate 112 moves right, so as to drive the connecting rod 111 to push the two first push plate assemblies 210 to move back, i.e., the upper first push plate assembly 210 moves upward, and the lower first push plate assembly 210 moves downward, and is away from the positioning base plate 110. Link mechanism 110 still includes third elastic component 113, and third elastic component 113 installs between two first push pedal assemblies 210, and the elastic force when third elastic component 113 resets makes first push pedal assembly 210 be close to location bottom plate 100 to make locating piece 211 and electric core butt, the realization is to the location of electric core. Specifically, when needs fix electric core, link 111 through link mechanism 110 promotes first push pedal assembly 210 and keeps away from location bottom plate 100, and third elastic component 113 atress makes first push pedal assembly 210 be close to location bottom plate 100 through the resilience of third elastic component 113 after placing electric core at second location base 102 this moment, and locating piece 211 butt compresses tightly electric core on electric core in the first direction.

Referring to fig. 2 and fig. 3 again, the second push plate assembly 220 further includes a side plate 221 and a guide rod 223, the guide plate 112 pushes the side plate 221 under the driving of the driving mechanism, so as to drive the guide rod 223 and the push plate 222 fixedly connected to the side plate 221 to be away from the second positioning base 102, and the guide rod is further provided with a fourth elastic member 224 for driving the push plate 222 to approach the electrical core and abut against the electrical core. Specifically, when electric core is fixed to needs, actuating mechanism drive deflector 112 outwards moves to and continues to move with curb plate 221 looks butt, make deflector 112 outwards promote curb plate 221, make curb plate 221 drive guide arm 223 and push pedal 222 keep away from second location base 102, fourth elastic component 224 atress this moment, place electric core behind second location base 102, resilience through fourth elastic component 224 makes push pedal 222 be close to electric core, push pedal 222 butt is on electric core, compress tightly electric core in the second direction.

To sum up, the switching piece positioning mechanism adopted in the two embodiments is not only flexible and simple in positioning mode and does not occupy redundant space, but also ensures that the switching piece and the top cover can be effectively positioned together, and is matched with the battery cell positioning mechanism to effectively position the battery cell, so that the battery cell is prevented from loosening and shifting the switching piece, the welding quality is improved, the production cost is reduced, and the technical problem in the prior art is solved.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. The utility model provides a positioner is used in keysets welding which characterized in that includes:

the positioning bottom plate is provided with a first positioning base for placing the top cover, and second positioning bases for placing the battery cell are arranged on two sides of the first positioning base;

the battery cell positioning mechanism can fix a battery cell on the second positioning base and comprises first push plate assemblies symmetrically arranged on a first pair of side edges of the positioning bottom plate and second push plate assemblies symmetrically arranged on a second pair of side edges of the positioning bottom plate;

the adapter sheet positioning mechanism comprises a positioning head, a support and a positioning head mounting seat, wherein the support is used for being fixed on the positioning bottom plate, the positioning head mounting seat is movably connected with the support, the positioning head is fixedly mounted on the positioning head mounting seat, and the positioning head is driven to move by the positioning head mounting seat, so that the adapter sheet can be pressed on the positioning bottom plate by the positioning head.

2. The positioning device for welding the adapter plate according to claim 1, wherein the positioning head mounting base is rotatably connected with the bracket through a rotating shaft, a first elastic member is arranged on the rotating shaft, and the first elastic member provides elastic force for the positioning head to enable the positioning head to press the adapter plate.

3. The positioning device for welding the adapter plate according to claim 1, wherein rollers are arranged on two sides of the positioning head mounting seat, the rollers can slide on the support, and the positioning head mounting seat is slidably connected with the support through the rollers.

4. The positioning device for welding the adapter plate according to claim 3, wherein a vertical plate is slidably connected to the positioning head mounting seat, the positioning head mounting seat is connected to the vertical plate through a second elastic member, and the positioning head moves towards the adapter plate and presses the adapter plate by an elastic force provided by the second elastic member when the second elastic member is reset.

5. The positioning device for soldering of an interposer as claimed in claim 1, wherein the first positioning base is provided with a plurality of positioning pins for positioning the top cover on the first positioning base.

6. The positioning device for soldering of the interposer as claimed in claim 1, wherein a link mechanism is disposed at a bottom of the cell substrate, the link mechanism includes a link and a guide plate, one end of the link is rotatably mounted on the guide plate, and the other end of the link is rotatably mounted on a bottom of the first push plate assembly.

7. The positioning device for soldering the interposer as claimed in claim 6, wherein the connecting rod is capable of pushing the first push plate assembly under an external force to keep the first push plate assembly away from the positioning base plate.

8. The positioning device for soldering of an interposer as claimed in claim 6, wherein the link mechanism further comprises a third elastic member, the third elastic member is installed between the two first push plate assemblies, and the elastic force provided by the third elastic member when the third elastic member is reset enables the first push plate assemblies to approach the positioning base plate.

9. The positioning device for soldering of the interposer as claimed in claim 1, wherein the first push plate assembly is provided with a positioning block, and the positioning block abuts against the battery cell for fixing the battery cell to the second positioning base.

10. The positioning device for the soldering of the interposer as claimed in claim 1, wherein the second pushing plate assembly comprises a side plate, a pushing plate and a guide rod, and under the action of an external force, the guide plate can push the side plate to drive the guide rod fixedly connected with the side plate and the pushing plate to move away from the second positioning base.

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