CN219335594U - Soft packet of lithium ion battery tab cuts punching die - Google Patents

Abstract

The utility model discloses a soft package lithium ion battery tab cutting and punching die which comprises an upper die holder and a lower die holder, wherein a cutting die fixing plate arranged at the lower end of the upper die holder is fixedly provided with a cutting die, the tail end of the cutting die fixing plate is provided with a punching punch knife, a pin shaft is nested on the upper surface of the upper die holder, the tail end of the pin shaft penetrates through the upper die holder, and the tail end of the pin shaft is provided with a threaded hole; a pressing block is arranged below the upper die holder, a connecting bolt with a downward head is nested on the bottom surface of the pressing block, and the tail end of the connecting bolt penetrates through the pressing block to be connected with a threaded hole at the bottom of the pin shaft; a spring is sleeved between the upper die seat and the pressing block on the pin shaft; the upper end of the lower die holder is provided with a cutting and punching table, the cutting and punching table is provided with a cutting and punching table top, and a punching cutter abdicating hole is formed in the cutting and punching table top and positioned at a position corresponding to the punching punch cutter.

Description

Soft packet of lithium ion battery tab cuts punching die

Technical Field

The utility model relates to the technical field of battery tab cutting and punching, in particular to a soft package lithium ion battery tab cutting and punching die.

Background

At present, the shape of the soft package lithium ion battery can be customized according to the requirements of customers by virtue of the characteristics of high energy density, good safety performance and flexible design, new battery cell models are developed, at present, the continuous increase of light-weight requirements is achieved, different module frames and grouping modes exist, different connection requirements and grouping mode requirements exist for the shape of the soft package lithium ion battery and the shape of the electrode lugs, because the shape of the electrode lugs of the battery is changeable, the cost of battery lug manufacturers is high, therefore, a lug cutting and punching die with a specific shape is needed, an O-shaped hole is needed to be punched on the end face of the electrode lugs after the electrode lugs are cut and leveled, the existing processing mode is needed to cut and level firstly, then O-shaped holes are punched on the front end face of the electrode lugs, but the processing efficiency of the electrode lugs is low, the die structure is complex, the disassembly and assembly are inconvenient, and the occupied space is large, and the like are solved.

Disclosure of Invention

The utility model aims to overcome the existing defects, and provides the soft-package lithium ion battery tab cutting and punching die which is high in tab cutting and punching processing efficiency, the pressing block is used for pressing the tab through the spring, the tab is prevented from being displaced and swaying in the cutting and punching process, the tab cutting and punching actions are stable in operation, the tab cutting and punching processing effect is good, the structure is simple, the disassembly and assembly are convenient, the occupied space is small, and the problems in the background art can be effectively solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a soft packet of lithium ion battery tab cuts punching die, includes upper die base, die holder and cutting die, the lower extreme of upper die base is equipped with the cutting die fixed plate, the cutting die is fixed in the front end of cutting die fixed plate, and the end of cutting die fixed plate is vertical to be equipped with punching the punching press sword, and the upper surface of upper die base is vertical to be seted up step hole one, has nested in the step hole one round pin axle, and the end of round pin axle runs through the upper die base, and the end of round pin axle has seted up the screw hole; a pressing block is arranged below the upper die holder, a step hole II is formed in the bottom surface of the pressing block at a position corresponding to the pin shaft, a connecting bolt with the downward head is nested in the step hole II, and the tail end of the connecting bolt penetrates through the pressing block and is connected with a threaded hole at the bottom of the pin shaft; a spring is sleeved between the upper die seat and the pressing block on the pin shaft; the upper end of die holder is equipped with cuts the platform of punching, cuts the upper die guide way that the platform upper surface that punches is located the position department that corresponds the cutting die fixed plate and vertically offered rather than width looks adaptation, and the bottom surface of going up the die guide way is for cutting the mesa that punches, cuts and punch the position department that is located the punching die on the mesa and offered the punching die hole of stepping down that punches, and the upper surface of die holder is located the position department that corresponds the cutting die and vertically offered rather than width looks adaptation cutting die guide way, and the cutting die guide way is linked together with last die guide way.

Further, the width of the cutting die is larger than that of the cutting die fixing plate, the cutting die guide groove and the upper die guide groove form a step surface in the horizontal direction, and the back surface of the cutting die is attached to the step surface; the bottom surface of the cutting die guide groove is lower than the cutting and punching table top, the chip removal groove is arranged below the cutter abdication hole along the horizontal direction on the step surface formed by the cutting die guide groove and the upper die guide groove, and the chip removal groove is communicated with the cutter abdication hole.

Further, the tail end of the back surface of the cutting die is provided with a cutting edge, and the cutting edge of the cutting die is of an oblique edge structure.

Further, the front side wall of the vertical plate of the upper die base is provided with a cutter die connecting hole, the cutter die is provided with a through hole, and the cutter die penetrates through the through hole and the cutter die connecting hole through a screw to be fixedly connected with the vertical plate on the upper die base.

Further, a clamping groove with a U-shaped structure is formed in the top end of the cutting die, clamping protrusions matched with the clamping groove are arranged on the cutting die fixing plate, and the clamping groove of the cutting die is clamped with the clamping protrusions on the cutting die fixing plate.

Further, the tail end of the cutting die fixing plate is located at the periphery of the opposite pin shaft, an accommodating groove is formed in the outer periphery of the opposite pin shaft, and the spring is nested in the accommodating groove.

Further, an annular groove matched with the outer diameter of the pressing block is formed in the position, corresponding to the pin shaft, of the upper surface of the pressing block, and the tail end of the pin shaft is nested in the annular groove.

Further, the width and the length of the pressing block are matched with the fixed plate of the cutting die, a punching cutter guide hole is formed in the pressing block at the position corresponding to the punching cutter, and the tail end of the punching cutter guide hole penetrates through the pressing block.

Further, an upper die mounting hole is formed in the upper surface of the upper die holder; the lower die base is provided with a lower die mounting hole positioned outside the cutting and punching table

Compared with the prior art, the utility model has the beneficial effects that: this soft packet of lithium ion battery utmost point ear cuts mould that punches, cut the utmost point ear through punching on the upper die base and the cutting edge on the cutting die simultaneously, the processing efficiency that the utmost point ear cut and punch is high, go up mould guide way and cutting die guide way and play the guide effect to the lift of upper die base and cutting die, the punching knife guiding hole through on the briquetting plays the guide effect to the slip of briquetting, make the briquetting compress tightly the utmost point ear through the spring, prevent that the utmost point ear from moving and rocking at the in-process that cuts and punch, and the spring plays the cushioning effect to the decline of cutting die, utmost point ear cuts and the action operation that punches is steady, and this soft packet of lithium ion battery utmost point ear cuts mould that punches simple structure, easy dismounting, occupation space is little.

Drawings

FIG. 1 is a schematic diagram of a conventional soft-pack lithium ion battery cell structure;

FIG. 2 is a schematic view of a die for cutting and punching tabs according to the present utility model;

FIG. 3 is a front view of a tab cutting and punching die of the present utility model;

FIG. 4 is an exploded view of a tab cutting and punching die according to the present utility model;

FIG. 5 is a schematic diagram of a connection structure between an upper die holder and a pressing block according to the present utility model;

FIG. 6 is a schematic view of an upper die holder according to the present utility model;

FIG. 7 is a left side view of the lower die holder of the present utility model;

FIG. 8 is a right side view of the lower die holder of the present utility model;

FIG. 9 is a cross-sectional view of an upper die holder of the present utility model;

FIG. 10 is a cross-sectional view of a briquette of the utility model;

FIG. 11 is a schematic view of a cutting die structure according to the present utility model;

FIG. 12 is a cross-sectional view of a tab cutting and punching die of the present utility model;

fig. 13 is a schematic structural view of the tab cutting and punching die of the present utility model in use.

In the figure: the die comprises an upper die holder 1, a cutter die fixing plate 101, a punching cutter 102, a step hole I103, a containing groove 104, a cutter die connecting hole 105, an upper die mounting hole 106, a cutter die 2, a clamping groove 201, a pin shaft 3, a spring 4, a pressing block 5, a step hole II 501, a cutter die guiding hole 502, a connecting bolt 6, a lower die holder 7, a cutting and punching table 701, an upper die guiding groove 702, a cutting and punching table 703, a cutter die abdicating hole 704, a chip removing groove 705, a cutter die guiding groove 706 and a lower die mounting hole 707.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

Referring to fig. 2-13, the present utility model provides a technical solution: the utility model provides a soft packet of lithium ion battery tab cuts perforating die, includes upper die base 1, die holder 7 and cutting die 2, the lower extreme of upper die base 1 is equipped with cutting die fixed plate 101, cutting die 2 is fixed in the front end of cutting die fixed plate 101, and the end of cutting die fixed plate 101 is vertical to be equipped with punch press cutter 102, and step hole one 103 has been seted up vertically to upper surface of upper die base 1, and the nested round pin axle 3 in step hole one 103, and round pin axle 3's end runs through upper die base 1, and the screw hole has been seted up to round pin axle 3's end; a pressing block 5 is arranged below the upper die holder 1, a second step hole 501 is formed in the position, corresponding to the pin shaft 3, of the bottom surface of the pressing block 5, a connecting bolt 6 with the head facing downwards is nested in the second step hole 501, and the tail end of the connecting bolt 6 penetrates through the pressing block 5 and is connected with a threaded hole at the bottom of the pin shaft 3; a spring 4 is sleeved between the upper die holder 1 and the pressing block 5 on the pin shaft 3; the width and the length of the pressing block 5 are matched with those of the cutting die fixing plate 101, a punching cutter guide hole 502 is formed in the pressing block 5 at a position corresponding to the punching cutter 102, and the tail end of the punching cutter guide hole 502 penetrates through the pressing block 5; the upper end of the lower die holder 7 is provided with a cutting and punching table 701, an upper die guide groove 702 which is matched with the upper die guide groove in width is vertically formed in the position, corresponding to the die fixing plate 101, of the upper surface of the cutting and punching table 701, a punching cutter abdicating hole 704 is formed in the position, corresponding to the punching cutter 102, of the cutting and punching table 703, a die guide groove 706 which is matched with the upper die in width is vertically formed in the position, corresponding to the die 2, of the upper surface of the lower die holder 7, and the die guide groove 706 is communicated with the upper die guide groove 702; the width of the cutting die 2 is larger than that of the cutting die fixing plate 101, the cutting die guide groove 706 and the upper die guide groove 702 form a step surface in the horizontal direction, the tail end of the back surface of the cutting die 2 is a cutting edge, the cutting edge of the cutting die 2 is in a bevel edge structure, and the back surface of the cutting die 2 is attached to the step surface; the bottom surface of the cutting die guiding groove 706 is lower than the cutting and punching table 703, chip removing grooves 705 are formed below the punching tool abdication holes 704 on the step surface formed by the cutting die guiding groove 706 and the upper die guiding groove 702 along the horizontal direction, and the chip removing grooves 705 are communicated with the punching tool abdication holes 704; an upper die mounting hole 106 is formed in the upper surface of the upper die holder 1; a lower die mounting hole 707 is formed in the lower die holder 7 outside the cutting and punching stage 701.

Working principle:

the upper die holder 1 is fixedly connected with lifting equipment arranged outside through an upper die mounting hole 106, and the lower die holder 7 is fixedly connected with an external supporting platform through a lower die mounting hole 707; the electrode lug of the battery cell is placed on a cutting and punching table 703, the upper die holder 1 drives the cutting die 2 and the pressing block 5 to descend through lifting equipment, the pressing block 5 continuously descends to overcome the elasticity of the spring 4 after the pressing block 5 is contacted with the electrode lug, the pressing block 5 compresses the electrode lug through the elasticity of the spring 4, the upper die holder 1 and the cutting die 2 continuously descends, the electrode lug is punched through the punching cutter 102 on the upper die holder 1, and the electrode lug is cut through the cutting edge on the cutting die 2; the tab scraps punched by the punching cutter 102 fall into the chip removal groove 705, and the tab scraps cut by the cutting die 2 fall onto the bottom surface of the cutting die guide groove 706; after the cutting and punching are completed, the upper die holder 1 drives the cutting die 2 to ascend through lifting equipment, and the pressing block 5 is restored to the original state through the elasticity of the spring 4.

The soft package lithium ion battery tab cuts mould that punches, punch cutter 102 through on upper die base 1 and cutting edge on cutting die 2 cut the tab simultaneously, the processing efficiency that the tab cut and punch is high, upper die guide slot 702 and cutting die guide slot 706 play the guide effect to the lift of upper die base 1 and cutting die 2, punch cutter guiding hole 502 through on briquetting 5 plays the guide effect to the slip of briquetting 5, make briquetting 5 compress tightly the tab through spring 4, prevent that the tab from taking place the displacement and rocking at the in-process that cuts and punch, and spring 4 plays the cushioning effect to the decline of cutting die 2, tab cuts and punches the action operation steadily, and this soft package lithium ion battery tab cuts the mould that punches simple structure, easy dismounting, occupation space is little.

Further, a cutter die connecting hole 105 is formed in the front side wall of the vertical plate of the upper die holder 1, a through hole is formed in the cutter die 2, and the cutter die 2 is fixedly connected with the vertical plate of the upper die holder 1 through the through hole and the cutter die connecting hole 105 by a screw.

Further, the top end of the cutting die 2 is provided with a clamping groove 201 with a U-shaped structure, the cutting die fixing plate 101 is provided with a clamping protrusion matched with the clamping groove 201, the clamping groove 201 of the cutting die 2 is mutually clamped with the clamping protrusion on the cutting die fixing plate 101, and the clamping groove 201 and the clamping protrusion on the cutting die 2 are mutually clamped to play a role of limiting the shaking of the cutting die 2.

Further, the end of the cutter die fixing plate 101 is located at the periphery of the pin shaft 3 and provided with a containing groove 104, the spring 4 is nested in the containing groove 104, the spring 4 is placed through the containing groove 104, and the top end of the containing groove 104 is used for limiting the spring 4.

Further, an annular groove matched with the outer diameter of the pressing block 5 is formed in the position, corresponding to the pin shaft 3, of the upper surface of the pressing block 5, the tail end of the pin shaft 3 is nested in the annular groove, and the annular groove formed in the upper surface of the pressing block 5 plays a role in positioning connection of the pressing block 5 and the pin shaft 3.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The utility model provides a soft packet of lithium ion battery tab cuts perforating die utensil, includes upper die base, die holder and cutting die, its characterized in that: the lower end of the upper die holder is provided with a cutting die fixing plate, the cutting die is fixed at the front end of the cutting die fixing plate, the tail end of the cutting die fixing plate is vertically provided with a punching cutter, the upper surface of the upper die holder is vertically provided with a first step hole, a pin shaft is nested in the first step hole, the tail end of the pin shaft penetrates through the upper die holder, and the tail end of the pin shaft is provided with a threaded hole; a pressing block is arranged below the upper die holder, a step hole II is formed in the bottom surface of the pressing block at a position corresponding to the pin shaft, a connecting bolt with the downward head is nested in the step hole II, and the tail end of the connecting bolt penetrates through the pressing block and is connected with a threaded hole at the bottom of the pin shaft; a spring is sleeved between the upper die seat and the pressing block on the pin shaft; the upper end of die holder is equipped with cuts the platform of punching, cuts the upper die guide way that the platform upper surface that punches is located the position department that corresponds the cutting die fixed plate and vertically offered rather than width looks adaptation, and the bottom surface of going up the die guide way is for cutting the mesa that punches, cuts and punch the position department that is located the punching die on the mesa and offered the punching die hole of stepping down that punches, and the upper surface of die holder is located the position department that corresponds the cutting die and vertically offered rather than width looks adaptation cutting die guide way, and the cutting die guide way is linked together with last die guide way.

2. The soft package lithium ion battery tab cutting and punching die as set forth in claim 1, wherein: the width of the cutting die is larger than that of the cutting die fixing plate, the cutting die guide groove and the upper die guide groove form a step surface in the horizontal direction, and the back surface of the cutting die is attached to the step surface; the bottom surface of the cutting die guide groove is lower than the cutting and punching table top, the chip removal groove is arranged below the cutter abdication hole along the horizontal direction on the step surface formed by the cutting die guide groove and the upper die guide groove, and the chip removal groove is communicated with the cutter abdication hole.

3. The soft package lithium ion battery tab cutting and punching die as set forth in claim 1, wherein: the tail end of the back surface of the cutting die is provided with a cutting edge, and the cutting edge of the cutting die is of an oblique edge structure.

4. The soft package lithium ion battery tab cutting and punching die as set forth in claim 1, wherein: the front side wall of the vertical plate of the upper die base is provided with a cutter die connecting hole, the cutter die is provided with a through hole, and the cutter die penetrates through the through hole and the cutter die connecting hole through a screw and is fixedly connected with the vertical plate on the upper die base.

5. The soft package lithium ion battery tab cutting and punching die as set forth in claim 1, wherein: the clamping groove of the U-shaped structure is formed in the top end of the cutting die, the clamping protrusion matched with the clamping groove is arranged on the cutting die fixing plate, and the clamping groove of the cutting die is clamped with the clamping protrusion on the cutting die fixing plate.

6. The soft package lithium ion battery tab cutting and punching die as set forth in claim 1, wherein: the tail end of the cutting die fixing plate is positioned at the periphery of the pin shaft, an accommodating groove is formed in the periphery of the pin shaft, and the spring is nested in the accommodating groove.

7. The soft package lithium ion battery tab cutting and punching die as set forth in claim 1, wherein: an annular groove matched with the outer diameter of the pressing block is formed in the position, corresponding to the pin shaft, of the upper surface of the pressing block, and the tail end of the pin shaft is nested in the annular groove.

8. The soft package lithium ion battery tab cutting and punching die as set forth in claim 1, wherein: the width and the length of the pressing block are matched with those of the cutting die fixing plate, a punching cutter guide hole is formed in the pressing block at the position corresponding to the punching cutter, and the tail end of the punching cutter guide hole penetrates through the pressing block.

9. The soft package lithium ion battery tab cutting and punching die as set forth in claim 1, wherein: an upper die mounting hole is formed in the upper surface of the upper die holder; and a lower die mounting hole is formed in the lower die holder and positioned outside the cutting and punching table.

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