CN111490226A

CN111490226A - Tab shaping device and method

Info

Publication number: CN111490226A
Application number: CN202010405659.0A
Authority: CN
Inventors: 邱立国; 李国彪; 张伟参; 鲁杰
Original assignee: Zhuhai Titans New Power Electronics Co Ltd
Current assignee: Zhuhai Titans New Power Electronics Co Ltd
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2020-08-04

Abstract

The invention discloses a tab shaping device, which comprises: a frame; the carrier bracket is positioned on one side of the rack; the battery carrier is arranged on the carrier bracket and used for bearing a battery; the clamping device comprises a first clamping block, a second clamping block and a driving system, wherein the first clamping block is connected with the rack in a sliding mode, the driving system is arranged on the rack and can drive the first clamping block and the second clamping block to clamp the lugs of the battery; the tab shaping device can effectively shape the battery tab and is convenient for controlling the thickness of the battery carrier; the invention also provides a method for shaping the lug.

Description

Tab shaping device and method

Technical Field

The invention relates to the field of battery production, in particular to a tab shaping device and a tab shaping method.

Background

In the current automatic production process of lithium batteries, the shaping and positioning work of battery tabs needs to be completed in the process of feeding and discharging of soft package batteries, and the batteries after being formed are difficult to reshape again; therefore, the defects of bending, deformation and the like of the battery tab are not repaired in the formation process, so that the produced battery has poor flatness and the downstream production is influenced.

Therefore, research and development personnel develop a carrier with a lug shaping function, and the lug of the battery loaded on the battery carrier is clamped by arranging a clamping block on the battery carrier so as to shape the lug of the battery; for the purpose of reducing the thickness of the carrier, the maximum gap between the clamping blocks cannot be set to be too large, so that the situation that the clamping gap is too small and the battery is damaged due to improper lug alignment easily occurs when the battery is loaded.

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 shaping device which can effectively shape a battery tab and is convenient for controlling the thickness of a battery carrier.

The tab shaping device of one aspect of the present invention includes: a frame; the carrier bracket is positioned on one side of the rack; the battery carrier is arranged on the carrier bracket and used for bearing a battery; the clamping device comprises a first clamping block, a second clamping block and a driving system, wherein the first clamping block is connected with the rack in a sliding mode, the driving system is arranged on the rack, and the driving system can drive the first clamping block and the second clamping block to clamp the lug of the battery.

Furthermore, the driving system comprises a first driving device and a second driving device which are arranged on the rack, the first driving device is connected with a first connecting rod in a driving mode, the first connecting rod is connected with the first clamping block, the second driving device is connected with a second connecting rod in a driving mode, and the second connecting rod is connected with the second clamping block.

Furthermore, the first driving device is connected with two first connecting rods in a driving manner, and the first clamping block is connected with the two first connecting rods; and/or the second driving device is in driving connection with two second connecting rods, and the two second connecting rods are both connected with the second clamping block.

Furthermore, grooves are formed in the first connecting rod and the second connecting rod, the grooves in the first connecting rod are used for installing the first clamping blocks, and the grooves in the second connecting rod are used for installing the second clamping blocks.

Further, the first driving device comprises a first air cylinder arranged on the front side of the frame, and the second driving device comprises a second air cylinder arranged on the rear side of the frame.

Furthermore, clamping devices are arranged on the left side and the right side of the battery carrier.

Furthermore, the clamping device comprises a plurality of first clamping blocks arranged on the left side and the right side of the rack and a plurality of second clamping blocks arranged on the left side and the right side of the rack, and the clamping device further comprises a driving system arranged on the rack, and the driving system can drive the first clamping blocks and the second clamping blocks to clamp the lugs of the battery in a one-to-one correspondence mode.

Further, a plurality of battery carriers are distributed on the rack along the front-back direction, and each battery carrier is provided with a guide block.

The invention also provides a pole lug shaping method, and the pole lug shaping device comprises the following steps: controlling the first driving device and/or the second driving device to enable the first clamping block to be separated from the second clamping block; arranging a plurality of batteries in a front-back manner, and loading the batteries into a plurality of battery clamps, so that a tab of each battery enters between the first clamping block and the second clamping block; and controlling the first driving device and/or the second driving device to enable the first clamping block and the second clamping block to clamp the pole lug so as to shape the pole lug.

When the tab shaping device is used, the driving system can be controlled to drive the first clamping block and the second clamping block to be separated, then a battery is loaded into the battery carrier, then the first clamping block and the second clamping block are controlled to clamp the tab of the battery, and the tab of the battery is shaped by means of clamping force; because the clamping device and the carrier are respectively arranged on the rack and the carrier bracket, the clamping gap of the two clamping blocks is not limited by the thickness of the battery carrier, and the clamping gap of the two clamping blocks can be enlarged when a battery is loaded, so that the battery can be conveniently loaded into the battery carrier.

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 shaping device according to an embodiment of the present invention;

FIG. 2 is an enlarged view taken at point I in FIG. 1;

FIG. 3 is a top view of a side positioning device according to an embodiment of the present invention;

fig. 4 is a schematic view of a second tab shaping device according to an embodiment of the present invention;

the above figures contain the following reference numerals.

Reference numerals	Name (R)
		110	Rack
120	Battery carrier
		121	Guide block
122	Body
		131	First clamping block
132	Second clamping block
		141	First connecting rod
142	Second connecting rod
		151	First driving device
152	Second driving device
		200	Side positioning device
210	Cylinder
		220	Positioning rod
230	Sliding rail
		300	Cooling device

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. 1, the tab shaping device according to an aspect of the present embodiment includes: a frame 110; a carrier support located at one side of the frame 110; a battery carrier 120 disposed on the carrier support, the battery carrier 120 being used for carrying a battery; and the clamping device is arranged on the machine frame 110 and can be close to the battery and clamp the lug of the battery.

When the tab shaping device of the embodiment is applied, the driving system can be controlled to drive the first clamping block 131 and the second clamping block 132 to separate, then the battery is loaded into the battery carrier 120, then the first clamping block 131 and the second clamping block 132 are controlled to clamp the battery tab, and the battery tab is shaped by clamping force; because the clamping device and the carrier are respectively arranged on the frame 110 and the carrier bracket, the clamping gap between the two clamping blocks is not limited by the thickness of the battery carrier 120, and the clamping gap between the two clamping blocks can be enlarged when a battery is loaded, so that the battery can be conveniently loaded into the battery carrier 120.

The battery carrier 120 may be disposed on the carrier bracket in various ways, for example, by a suspension rod or a chain disposed on the frame 110, the battery carrier 120 is mounted on the suspension rod or the chain, or a separate second bracket is disposed on one side of the frame 110, and the battery carrier 120 is disposed on the second bracket; as long as the carrier bracket enables the body 122 of the battery carrier 120 and the clamping device to be separately provided.

It can be understood that the clamping device can clamp and shape the tabs of the battery in various ways; for example, the tabs of the battery are clamped by pneumatic clamping jaws, or the tabs are clamped by a pair of clamping blocks which move relative to each other; the magnetic attraction piece can also attract the magnetic attraction piece through the magnetic force of the electromagnet, so that the pole lug of the battery is clamped.

As shown in fig. 2, in order to facilitate control of the position or clamping force of the clamping device, the clamping device includes a first clamping block 131 and a second clamping block 132 slidably connected to the frame 110, and the clamping device further includes a driving system disposed on the frame 110, the driving system being capable of driving the first clamping block 131 and the second clamping block 132 to clamp the tabs of the battery; at this time, the driving system can control the positions of the first clamping block 131 and the second clamping block 132 relative to the frame 110 to adapt to the clamping of the battery tabs with different sizes, and can also adjust the clamping force when the first clamping block 131 and the second clamping block 132 clamp the tabs through the gap between the first clamping block 131 and the second clamping block 132; when the effect of plastic to the utmost point ear of different specifications is played, prevent that the clamping-force is too big to cause utmost point ear fracture.

As shown in fig. 1, the driving system includes a first driving device 151 and a second driving device 152 disposed on the frame 110, the first driving device 151 is drivingly connected with a first connecting rod 141, the first connecting rod 141 is connected with the first clamping block 131, the second driving device 152 is drivingly connected with a second connecting rod 142, and the second connecting rod 142 is connected with the second clamping block 132; the first driving device 151 and the second driving device 152 can drive the first link 141 and the second link 142 to extend and retract relatively in various ways; for example, the first link 141 or the second link 142 may be driven and connected by two cylinders 210 or hydraulic cylinders disposed at the front and rear sides of the frame 110, or the first link 141 and the second link 142 may be driven by two motors disposed at the front and rear sides of the frame 110.

As shown in fig. 2, the first connecting rod 141 and the second connecting rod 142 are both provided with a groove, the groove on the first connecting rod 141 is used for installing the first clamping block 131, and the groove on the second connecting rod 142 is used for installing the second clamping block 132; wherein, the groove can make the first clamping block 131 and the second clamping block 132 stably fixed on the connecting rod.

As shown in fig. 1, further, in order to prevent the clamping from being not in place due to the deformation of the clamping block when the clamping block is clamped by the link driving device, the first driving device 151 is connected with two first links 141 in a driving manner, and the first clamping block 131 is connected with both the two first links 141; and/or the second driving device 152 is in driving connection with two second connecting rods 142, and both the two second connecting rods 142 are connected with the second clamping block 132; two of the first connecting rods 141 drive a clamping block to move at the same time, so that deformation of the clamping block during clamping can be effectively reduced.

As shown in fig. 1 and 4, the battery carrier 120 is provided with clamping devices on both left and right sides; at this time, two batteries can be loaded on one battery carrier 120, and the tabs of the two batteries are respectively located on the left and right sides of the battery carrier 120, and then the clamping devices on the left and right sides of the battery carrier 120 can be controlled to simultaneously clamp the tabs of the two batteries, so that the two batteries are shaped at the same time, and the space utilization rate of the battery carrier 120 is improved.

It is understood that the clamping devices on the left and right sides of the battery carrier 120 can be controlled by a plurality of sets of driving devices, or can be controlled by a set of driving devices.

As shown in fig. 1, 2 and 4, when the battery carrier 120 is provided with clamping devices on both left and right sides, the clamping devices further include a plurality of first clamping blocks 131 disposed on both left and right sides of the frame 110 and a plurality of second clamping blocks 132 disposed on both left and right sides of the frame 110, and the clamping devices further include a driving system disposed on the frame 110, and the driving system can drive the plurality of first clamping blocks 131 and the plurality of second clamping blocks 132 to clamp the tabs of the battery in a one-to-one correspondence manner.

As shown in fig. 1 and 2, on the left side or the right side, the plurality of first clamping blocks 131 and the plurality of second clamping blocks 132 are sequentially arranged in a staggered manner in the front-rear direction, so that each first clamping block 131 and one second clamping block 132 can clamp a tab of a battery.

It can be understood that, at this time, the first connecting rod 141 extending back and forth sequentially passes through the plurality of first clamping blocks 131 and is fixed, and the second connecting rod 142 extending back and forth sequentially passes through the plurality of second clamping blocks 132 and is fixed, and at this time, the first connecting rod 141 and the second connecting rod 142 only need to move a small distance relatively, so that the plurality of first clamping blocks 131 can clamp one second clamping block 132 respectively.

As shown in fig. 1 and 4, when a plurality of batteries need to be shaped simultaneously, a plurality of battery carriers 120 may be arranged on the rack 110 along the front-back direction, and each battery carrier 120 is provided with a guide block 121; when a plurality of batteries need to be subjected to tab shaping, the batteries can be sequentially arranged along the front-back direction and then are loaded into the plurality of battery carriers 120 together, and the guide blocks 121 arranged on each battery carrier 120 can provide a guide effect for the loaded batteries, so that the batteries are prevented from sliding out of the battery carriers 120 when being loaded.

As shown in fig. 3 and 4, in order to keep the left and right positions of the batteries consistent after the plurality of batteries are mounted in the battery carrier 120 and facilitate the clamping of the battery tabs by the clamping device, the frame 110 is provided with a side positioning device 200, the side positioning device 200 includes an air cylinder 210 provided on the frame 110 and a positioning rod 220 drivingly connected to the air cylinder 210, and the positioning rod 220 extends in the front-rear direction.

Specifically, as shown in fig. 4, the side positioning devices 200 are disposed on both the left and right sides of the frame 110, and after the plurality of batteries are loaded into the battery carrier 120, the positioning rods 220 on both the left and right sides are simultaneously moved inward by driving the air cylinder 210, so that the plurality of batteries are abutted by the positioning rods 220 on both sides, and the left and right positions are kept consistent.

As shown in fig. 3, the positioning rod 220 may also be slidably connected to the frame 110 at two ends via slide rails 230.

As shown in fig. 4, in order to effectively cool the battery before and after the shaping process, a cooling device 300 is disposed below the frame 110, and the cooling device 300 includes a plurality of fans capable of blowing air to the battery carrier 120.

Specifically, frame 110 below is provided with two fan support along the left-right direction, and it has a plurality of fans to distribute along the fore-and-aft direction between the fan, when needs are for the battery cooling, can control a plurality of fans and rotate, provides the air that flows for the battery on a plurality of battery carriers 120 simultaneously, dispels the heat for the battery.

Of course, a single fan or duct blower may be used to blow air through the duct to the plurality of battery carriers 120.

The embodiment also provides a tab shaping method, which is used for shaping a battery tab by using the tab shaping device, and comprises the following steps: controlling the first driving device 151 and/or the second driving device 152 such that the first clamping block 131 is separated from the second clamping block 132; arranging a plurality of batteries in a front-back direction, and loading the batteries into a plurality of battery clamps, so that the tab of each battery enters between the first clamping block 131 and the second clamping block 132; the first driving device 151 and/or the second driving device 152 are controlled such that the first clamping block 131 and the second clamping block 132 clamp the tab to shape the tab.

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. A tab shaping device, comprising:

a frame (110);

the carrier bracket is positioned on one side of the rack (110);

a battery carrier (120) disposed on the carrier support, the battery carrier (120) for carrying a battery;

the clamping device comprises a first clamping block (131), a second clamping block (132) and a driving system, wherein the first clamping block (131) and the second clamping block (132) are connected with the rack (110) in a sliding mode, the driving system is arranged on the rack and can drive the first clamping block (131) and the second clamping block (132) to clamp the lug of the battery.

2. The tab reshaping device according to claim 1, wherein the driving system comprises a first driving device (151) and a second driving device (152) which are arranged on the frame (110), the first driving device (151) is in driving connection with a first connecting rod (141), the first connecting rod (141) is connected with the first clamping block (131), the second driving device (152) is in driving connection with a second connecting rod (142), and the second connecting rod (142) is connected with the second clamping block (132).

3. The tab reshaping device according to claim 2, wherein the first driving device (151) is drivingly connected with two first connecting rods (141), and the first clamping block (131) is connected with both of the two first connecting rods (141); the second driving device (152) is connected with two second connecting rods (142) in a driving mode, and the two second connecting rods (142) are connected with the second clamping block (132).

4. The tab reshaping device according to claim 3, wherein a groove is provided on each of the first connecting rod (141) and the second connecting rod (142), the groove on the first connecting rod (141) is used for mounting the first clamping block (131), and the groove on the second connecting rod (142) is used for mounting the second clamping block (132).

5. The tab shaping device as claimed in claim 3 or 4, wherein the first driving means (151) comprises a first cylinder disposed at a front side of the frame (110), and the second driving means (152) comprises a second cylinder disposed at a rear side of the frame.

6. The tab reshaping device according to claim 1, wherein the clamping device is provided on both left and right sides of the battery carrier (120).

7. The tab shaping device according to claim 4, wherein the clamping device comprises a plurality of first clamping blocks (131) disposed on left and right sides of the frame (110) and a plurality of second clamping blocks (132) disposed on left and right sides of the frame (110), and the clamping device further comprises a driving system disposed on the frame (110), the driving system being capable of driving the plurality of first clamping blocks (131) and the plurality of second clamping blocks (132) to clamp the tabs of the battery in a one-to-one correspondence manner.

8. The tab shaping device according to claim 1, wherein the frame (110) has a plurality of battery carriers (120) distributed along a front-rear direction, and each battery carrier (120) is provided with a guide block (121).

9. The tab shaping device according to claim 1, wherein a side positioning device (200) is disposed on the frame (110), the side positioning device (200) includes a cylinder (210) disposed on the frame (110), and a positioning rod (220) drivingly connected to the cylinder (210), the positioning rod (220) extending in a front-rear direction.

10. A tab shaping method using the tab shaping device according to any one of claims 1 to 9, comprising the steps of:

controlling the first drive device (151) and/or the second drive device (152) such that the first clamping block (131) is separated from the second clamping block (132);

arranging a plurality of batteries in a front-back direction, and arranging the batteries into a plurality of battery clamps so that a tab of each battery enters between the first clamping block (131) and the second clamping block (132);

and controlling the first driving device (151) and/or the second driving device (152) to enable the first clamping block (131) and the second clamping block (132) to clamp the pole ear so as to shape the pole ear.