CN111146518A

CN111146518A - Tab shaping forming clamp and forming equipment

Info

Publication number: CN111146518A
Application number: CN202010031243.7A
Authority: CN
Inventors: 邱立国; 肖俊
Original assignee: Zhuhai Titans New Power Electronics Co Ltd
Current assignee: Zhuhai Titans New Power Electronics Co Ltd
Priority date: 2020-01-13
Filing date: 2020-01-13
Publication date: 2020-05-12

Abstract

The invention discloses a shaping and forming clamp for a tab, which comprises: the PCB is used for supplying power to the cell body; the pressing block is connected with the PCB, and a gap for clamping a lug of the battery cell body is formed between the pressing block and the PCB; the distance adjusting mechanism is used for adjusting the size of the gap; the lug shaping forming clamp can be better suitable for electric cores with different lug thicknesses and has a lug shaping function; the invention also provides formation equipment.

Description

Tab shaping forming clamp and forming equipment

Technical Field

The invention relates to the field of battery formation and grading, in particular to a lug shaping and forming clamp and a forming device.

Background

In the existing battery production process, the produced battery needs to be subjected to chemical composition and capacity grading treatment, so that active substances in the battery are converted into chemical substances with normal electrochemical action by virtue of first charging, and the quality of the active substances is sorted and distinguished for the telecommunication body according to the capacity, so that the active substances are convenient to subpackage in the future.

Among the present formation partial volume equipment, generally adopt the utmost point ear of PCB board and clamp plate clamping electricity core body, supply power for the telecommunications body through setting up the electrically conductive region on the PCB board, because interval between PCB board and the clamp plate is fixed, present formation partial volume equipment only can adapt to the utmost point ear of certain thickness, when utmost point ear thickness change or utmost point ear have the drop in the thickness direction, cause the utmost point ear to bend easily behind the PCB board lamination utmost point ear, lead to electric core to scrap, present formation partial volume equipment does not possess the function of utmost point ear plastic simultaneously yet.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a tab reshaping forming clamp and a tab reshaping forming device, which can better adapt to electric cores with different tab thicknesses and have a tab reshaping function.

According to an aspect of the present invention, a tab reshaping jig includes: the PCB is used for supplying power to the cell body; the pressing block is connected with the PCB, and a gap for clamping a lug of the battery cell body is formed between the pressing block and the PCB; and the distance adjusting mechanism is used for adjusting the size of the gap.

The formation equipment comprises a machine base and a plurality of tab shaping and forming clamps, wherein the tab shaping and forming clamps are the tab shaping and forming clamps; the PCB and the pressing block are both connected to the base.

Furthermore, the formation equipment comprises a plurality of tab shaping and formation clamps which are sequentially arranged front and back, a guide rail is arranged on the machine base, and a plurality of guide pieces are arranged in the guide rail in a penetrating mode.

Furthermore, a press-fit lead screw and a press-fit plate are rotatably arranged on the machine base, a nut in threaded fit with the press-fit lead screw is connected onto the press-fit plate, and the press-fit plate can clamp a plurality of tabs with the machine base under the driving of the press-fit lead screw to be shaped into a clamp.

Furthermore, an elastic piece is arranged between the pressing plate and the lug shaping clamp.

Furthermore, a gear set is arranged on the machine base and used for driving the pressing lead screw to rotate.

Furthermore, the machine base is provided with a lifting rod, the lifting rod penetrates through the plurality of first driving portions, and the lifting rod can drive the plurality of first sliding blocks to lift simultaneously, so that the plurality of PCB boards can lift.

Furthermore, the base is provided with a first lead screw, the first lead screw is provided with a first nut in threaded fit with the first lead screw, and the first nut is connected with the lifting rod.

Furthermore, a translation rod is arranged on the machine base and penetrates through the plurality of second driving portions, and the translation rod can drive the plurality of second sliding blocks to lift simultaneously, so that the plurality of PCB boards can move back and forth.

Furthermore, a second lead screw is arranged on the base, a second nut in threaded fit with the second lead screw is arranged on the second lead screw, and the second nut is connected with the translation rod.

Furthermore, a chain is arranged on the machine base, and the pressing blocks are connected with the chain.

When the lug shaping and forming clamp is used, the cell body can be placed between the PCB and the pressing block, then the distance adjusting mechanism is controlled to adjust the size of the gap for clamping the lug of the cell body, so that the lug can be clamped under the condition that the lug is not bent, then the PCB is controlled to be electrified to carry out component capacitance on the cell body, and when the lug needs to be shaped, the size of the gap can be finely adjusted through the distance adjusting mechanism, so that the lug can be shaped.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is an isometric view of a tab reshaping jig according to an embodiment of the present invention;

fig. 2 is a front view of a tab reshaping jig according to an embodiment of the present invention;

FIG. 3 is a cross-sectional isometric view taken along line A-A of FIG. 2;

FIG. 4 is an isometric view of a compact according to an embodiment of the present invention;

FIG. 5 is a cut-away isometric view of a formation device of an embodiment of the present invention;

FIG. 6 is a top view of a formation device according to an embodiment of the present invention;

FIG. 7 is a cross-sectional view taken along line E-E of FIG. 6;

fig. 8 is an enlarged view of the point i in fig. 5.

The figures contain the following reference numerals:

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 5 and 6, the present invention provides a forming apparatus, which comprises a tab shaping forming clamp 100 and a machine base 200.

As shown in fig. 1 to 3, the tab shaping jig 100 according to an aspect of the present embodiment includes: the PCB 120 is configured to supply power to the cell body 700; the pressing block 110 is connected with the PCB 120, and a gap for clamping a tab of the cell body 700 is formed between the pressing block 110 and the PCB 120; and the distance adjusting mechanism is used for adjusting the size of the gap.

When the lug shaping and forming clamp 100 provided by the invention is used, the cell body 700 can be placed between the PCB 120 and the pressing block 110, then the distance adjusting mechanism is controlled to adjust the size of the gap for clamping the lug of the cell body 700, so that the lug can be clamped under the condition that the lug is not bent, then the PCB 120 is controlled to be electrified to carry out formation and partial capacitance on the cell body 700, and when the lug needs to be shaped, the size of the gap can be finely adjusted through the distance adjusting mechanism, so that the lug can be shaped.

When the connection relationship between the pressing block 110 and the PCB 120 is a contact connection relationship, the PCB 120 may be connected to the pressing block 110 by a fastening member, bonding, or the like, or the PCB 120 and the pressing block 110 may be connected to the frame, so that a gap for clamping a tab may be maintained between the PCB 120 and the pressing block 110; when the pressing block 110 is in a non-contact connection relation with the PCB 120, the PCB 120 and the pressing block 110 can be attracted by the magnetic attraction structure.

The gap adjusting mechanism can also adjust the size of the gap in various ways; for example, a wedge is inserted between the pressing block 110 and the PCB 120, and the gap between the PCB 120 and the pressing block 110 is controlled by the depth of the wedge, or a screw, a piston, or other driving mechanism may be disposed on the pressing plate to control the position of the PCB 120; the position of the PCB 120 can also be controlled by the magnetic force and the elastic force of the spring by arranging the spring on the PCB 120 and arranging the magnetic attraction structure on the pressing block 110.

As shown in fig. 3 and 4, the device further includes a first inclined slider 143, a first inclined surface is disposed on the first inclined slider, a second inclined surface 111 is disposed on the pressing block 110, the first inclined surface abuts against the second inclined surface 111, and the first inclined slider abuts against the PCB 120.

The first inclined plane and the second inclined plane 111 are matched to convert the lifting motion of the first inclined slide block 143 into the horizontal motion of the PCB 120, so that the size of the gap for clamping the tab of the cell body 700 is changed, when the angle formed by the inclined plane and the vertical direction is smaller, the first inclined slide block is lifted for a certain distance, the PCB 120 only slightly moves, and the gap is conveniently finely adjusted to perform micro-shaping on the tab; the first oblique sliding block can be driven to move manually, and can be driven to move automatically.

As shown in fig. 1, the first inclined surface and the second inclined surface 111 in this embodiment refer to surfaces that are not perpendicular to the up-down direction and the front-back direction.

In order to facilitate the automatic adjustment of the gap, the pressing block 110 is slidably connected with a second sliding block 141, the second sliding block 141 is connected with the first inclined sliding block, and at this time, the gap adjustment can be realized only by sliding the second sliding block 141 on the pressing block 110.

As shown in fig. 6, the second slider 141 is provided with a first driving portion 132, the first driving portion 132 is used for connecting translation, and at this time, the size of the gap can be adjusted by adjusting the up-down position of the translation rod 412.

As shown in fig. 1-3, a first slider 131 is slidably connected to the pressing block 110, and the first slider 131 is connected to the PCB 120; specifically, the PCB 120 is provided with a first press-fit area 121 and a second press-fit area 122 at an interval, the first press-fit area 121 and the second press-fit area 122 are respectively connected to two tabs of the cell body 700 for charging the cell body 700, wherein the widths of the first press-fit area 121 and the second press-fit area 122 are both greater than the widths of the tabs, and when a battery with different tab pitches needs to be clamped, the upper and lower positions of the PCB 120 only need to be adjusted by driving the first slider 131, so that the first press-fit area 121 and the second press-fit area 122 respectively press two tabs.

As shown in fig. 2 and 7, in order to facilitate driving the first slider 131 to slide, a first driving portion 132 is disposed on the first slider 131, and the first driving portion 132 is used for connecting the lifting rod 411.

As shown in fig. 1, in order to facilitate installation of the cell body 700, the pressing block 110 is provided with a guide assembly 150, and the guide assembly 150 is used for providing a slide-in guide when the cell body 700 is installed.

Specifically, in order to detect the temperature of the battery cell body 700 during the formation of the component volume, the pressing block 110 may be provided with a temperature sensing assembly 160, wherein the temperature sensing assembly 160 may be a temperature sensing probe or a thermistor, which are known in the art.

In order to enable a single tab to be shaped into a tab of which the clamp 100 can clamp two cell bodies 700, the left side and the right side of the pressing block 110 are both provided with the PCB plates 120.

In order to ensure that the plurality of tab reshaping forming clamps 100 are stably arranged on the rack, the pressing block 110 may be connected with the guide member 170, the rack may be provided with the guide rail 210, and the guide member 170 may be disposed to be sleeved on the guide rail 210.

Fig. 5-8 show a formation apparatus according to a second aspect of the present invention, which includes a frame 200 and a plurality of tab formation jigs 100, wherein the tab formation jigs 100 are the tab formation jigs 100; the PCB 120 and the pressing block 110 are both connected to the base 200.

When the formation equipment is used, the cell body 700 can be placed between the PCB 120 and the pressing block 110, then the distance adjusting mechanism is controlled to adjust the size of the gap for clamping the lugs of the cell body 700, so that the lugs can be clamped under the condition that the lugs are not bent, then the PCB 120 is controlled to be electrified to carry out formation and partial capacity on the cell body 700, and when the lugs need to be shaped, the size of the gap can be finely adjusted through the distance adjusting mechanism, so that the shaping of the lugs is completed; meanwhile, the formation equipment is provided with a plurality of tab shaping and forming clamps 100, so that the formation and capacity grading operations can be performed on a plurality of battery cell bodies 700 at one time.

The connecting piece can be arranged in the clamp, and the first sliding block 131 and/or the second sliding block 141 of the clamp 100 for shaping and forming a plurality of lugs can be driven in an automatic or manual mode in a unified mode to control the gap control and the lug micro-shaping of the clamp 100 for shaping and forming a plurality of lugs in a unified mode.

As shown in fig. 5, 6 and 8, in order to facilitate the arrangement of the plurality of tab reforming jigs 100 on the base 200, the plurality of tab reforming jigs 100 may be sequentially arranged in front of and behind the base 200, and a guide rail 210 may be provided on the base 200, and the guide rail 210 may be provided through the guide 170 of the plurality of tab reforming jigs 100.

As shown in fig. 5 and 6, in order to prevent uncontrolled sliding of the tab shaping jig 100 in the front-rear direction during the shaping and capacity-grading process, which affects the production; the base 200 is rotatably provided with a pressing lead screw 310 and a pressing plate 320, the pressing plate 320 is connected with a nut in threaded fit with the pressing lead screw 310, and the pressing plate 320 can clamp a plurality of tabs with the base 200 under the driving of the pressing lead screw 310 to form the clamp 100.

The lead screw rotates to drive the nut to slide forward, so as to drive the pressing plate 320 to slide forward, and force the plurality of tabs between the pressing plate 320 and the base 200 to be shaped into the clamp 100 to be pressed tightly.

The pressing lead screw 310 can be manually rotated to drive the nut, and the pressing lead screw 310 can be connected to a driving component such as an electric motor, a pneumatic motor or a hydraulic motor, so as to realize automatic control of the pressing plate 320.

As shown in fig. 5, in order to prevent the pressing plate 320 from causing excessive impact on the pressing screw 310 and the tab shaping jig 100 when being pressed, and damaging the equipment, an elastic member 340 is disposed between the pressing plate 320 and the tab shaping jig 100; when the pressing plate 320 presses a plurality of tabs to be shaped into the clamp 100, the elastic member 340 can play a role of buffering; wherein the elastic member 340 is preferably a compression spring.

In order to facilitate driving the plurality of stitching screws 310 disposed on the base 200, a gear set 330 may be disposed on the base 200, and the torque of the single motor is transmitted to the plurality of stitching screws 310 through the gear set 330, thereby effectively reducing the cost caused by disposing the plurality of stitching screws 310.

As shown in fig. 5 to 7, the base 200 is provided with a lifting rod 411, the lifting rod 411 is disposed through the plurality of first driving parts 132, and the lifting rod 411 can simultaneously drive the plurality of first sliders 131 to lift, so that the plurality of PCB boards 120 lift; when the lifting rod 411 rises, the lifting rod can simultaneously drive the plurality of the PCB boards 120 shaped into the clamp 100 to rise, and the unified control of the lifting of the PCB boards 120 shaped into the clamp 100 by the plurality of the tabs is realized; the lifting rod 411 can be controlled to lift in various ways, for example, the lifting rod 411 can be controlled to lift manually, or a driving device such as a linear motor and an air cylinder is arranged on the base 200 to drive the lifting rod 411 to lift.

As shown in fig. 7, in order to facilitate fine adjustment of the lifting position of the lifting rod 411, a first lead screw 421 is disposed on the base 200, and a first nut in threaded fit with the first lead screw 421 is disposed on the first lead screw 421 and is connected to the lifting rod 411; when the first lead screw 421 rotates, the nut on the first lead screw 421 only drives the lifting rod 411 to slowly lift, so that fine adjustment of the position of the lifting rod 411 is facilitated to a great extent, wherein the first lead screw 421 can be rotated in a manual screwing mode, and the first lead screw 421 can be driven to rotate by a motor, a pneumatic motor and the like.

As shown in fig. 5 and 7, the base 200 is provided with a translation rod 412, the translation rod 412 is disposed through the plurality of second driving parts 142, and the translation rod 412 can simultaneously drive the plurality of second sliders 141 to move up and down, so that the plurality of PCB boards 120 move back and forth; in the process of forming and capacity grading, the lifting of the second sliding block 141 in the clamp 100 for forming and shaping a plurality of tabs can be adjusted simultaneously by controlling the lifting of the translation rod 412, so as to realize the same control of the gaps in the clamp 100 for forming and shaping a plurality of tabs.

Similarly, as shown in fig. 7, in order to facilitate fine adjustment of the lifting position of the translation rod 412, a second lead screw 422 is disposed on the base 200, and a second nut in threaded fit with the second lead screw 422 is disposed on the second lead screw 422 and connected to the translation rod 412; (ii) a When the second screw 422 rotates, the nut on the second screw 422 only drives the translation rod 412 to slowly lift, which greatly facilitates the fine adjustment of the position of the translation rod 412, wherein the second screw 422 can rotate in a manual screwing mode, and the second screw 422 can also be driven to rotate by a motor, a pneumatic motor and the like.

As shown in fig. 5 and 7, a chain 430 may be provided on the base 200, and the pressing block 110, which shapes a plurality of tabs into the jig 100, may be connected to the chain 430.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. The utility model provides a utmost point ear plastic becomes anchor clamps which characterized in that includes:

the PCB (120) is used for supplying power to the cell body (700);

the pressing block (110) is connected with the PCB (120), and a gap for clamping a lug of the battery cell body (700) is formed between the pressing block (110) and the PCB (120);

and the distance adjusting mechanism is used for adjusting the size of the gap.

2. The formation equipment is characterized by comprising a base (200) and a plurality of tab formation clamps (100), wherein the tab formation clamps (100) are the tab formation clamps (100) of claim 1, and the PCB (120) and the pressing block (110) are connected to the base (200).

3. The formation equipment according to claim 2, comprising a plurality of the tab shaping and formation clamps (100) arranged in sequence, wherein a guide rail (210) is arranged on the machine base (200), and a plurality of guide members (170) are arranged on the guide rail (210) in a penetrating manner.

4. The formation equipment according to claim 3, wherein a pressing lead screw (310) and a pressing plate (320) are rotatably arranged on the machine base (200), a nut in threaded fit with the pressing lead screw (310) is connected to the pressing plate (320), and the pressing plate (320) can clamp a plurality of tabs with the machine base (200) to form the clamp (100) under the driving of the pressing lead screw (310).

5. The forming apparatus according to claim 4, wherein an elastic member (340) is provided between the laminate sheet (320) and the tab forming jig (100).

6. The formation equipment according to claim 4, wherein a gear set (330) is arranged on the machine base (200), and the gear set (330) is used for driving the pressing lead screw (310) to rotate.

7. The formation equipment according to claim 2, wherein a lifting rod (411) is arranged on the machine base (200), the lifting rod (411) is arranged through the plurality of first driving parts (132), and the lifting rod (411) can drive the plurality of first sliders (131) to lift and lower simultaneously, so that the plurality of PCB boards (120) can lift and lower.

8. The formation equipment according to claim 7, wherein a first lead screw (421) is arranged on the machine base (200), a first nut in threaded fit with the first lead screw (421) is arranged on the first lead screw (421), and the first nut is connected with the lifting rod (411).

9. The formation equipment according to claim 2, wherein a translation rod (412) is arranged on the base (200), the translation rod (412) passes through the plurality of second driving parts (142), and the translation rod (412) can simultaneously drive the plurality of second sliding blocks (141) to lift, so that the plurality of PCB boards (120) move back and forth.

10. The formation equipment according to claim 9, wherein a second lead screw (422) is arranged on the base (200), a second nut in threaded fit with the second lead screw (422) is arranged on the second lead screw (422), and the second nut is connected with the translation rod (412).