Clamp suitable for arc-shaped battery clamp formation

Abstract

The utility model belongs to the technical field of lithium ion battery manufacturing, and particularly relates to a clamp suitable for arc-shaped battery clamp formation. Comprising a bottom box, an upper cover and a fake air bag, the upper cover is assembled on the bottom box, the fake air bag is installed on the upper cover through a flat screw, the upper surface of the bottom box is concaved inwards to form an arc-shaped cambered surface, the lower surface of the upper cover is protruded to form an arc-shaped cambered surface, and the radians of the arc-shaped cambered surface and the arc-shaped cambered surface are matched with the surface radian of an arc-shaped battery. And the arc-shaped battery is just accommodated between the upper cover and the bottom box. The device is simple in structure, does not need to transform clamp formation equipment, can deform along with stress of a crown block clamp through the arrangement of the false air bag, can replace an arc-shaped battery air bag to bear the weight of an arc-shaped battery and the clamp, and avoids the possibility that the clamp damages the arc-shaped battery, so that the production efficiency is improved, and the production cost is reduced. And grabbing and transferring of the arc-shaped battery after formation are achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to lithium ion battery manufacturing technical field especially relates to a clamp suitable for arc battery clamp formation. BACKGROUND

[0002] Arc lithium battery has the advantages of small volume, light weight, high energy density, etc. It is an important power for future new energy vehicles and is widely used in wireless intelligent wearable devices. Arc lithium battery adopts arc-shaped battery structure, which can better adapt to complex space structure. At present, many electronic product researches make the product shape into arc shape, such as smart bracelet, smart watch, earphone and other ring-shaped structure devices. Therefore, arc lithium battery is an important trend of future battery technology development.

[0003] In the battery manufacturing process, the conventional clamp formation equipment is used, and the existing clamp formation equipment clamping plate is planar and cannot be applied to arc-shaped batteries. For example, the patent for utility model with publication number CN212725403U discloses a battery cell formation and air extraction device and battery cell formation equipment. The battery cell formation and air extraction clamp clamps the air bag of the battery cell, but the battery is a square battery. The patent for utility model with publication number CN206059555U discloses an arc-shaped lithium battery clamp, which comprises a first mold and a second mold, the second mold is assembled on the first mold, the first mold has a curved surface for placing the battery cell, the inner wall of the second mold is provided with a first limiting groove and a second limiting groove corresponding to the first limiting part and the second limiting part respectively, and the first limiting part and the second limiting part can be accommodated in the first limiting groove and the second limiting groove respectively. Through the above clamp, arc-shaped battery forming can be realized, but the clamp formation equipment crane cannot automatically grab and transfer the battery. Since the existing clamp formation equipment crane clamping plate is planar, it cannot be applied to arc-shaped batteries. If the equipment is modified, high modification cost needs to be invested. Therefore, it is urgent to develop a clamp formation equipment crane that can grab and transfer the battery without modifying the clamp formation equipment. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a clamp suitable for arc-shaped battery clamp formation, which solves the problem that the clamp formation equipment crane clamping plate cannot automatically grab and transfer the battery after the arc-shaped battery is formed.

[0005] In order to achieve the above object, the utility model adopts the technical scheme of a kind of clamp suitable for arc battery clamp formation, comprising: bottom box, upper cover and false air bag, the upper cover is assembled on the bottom box, the false air bag is installed on the upper cover by flat head screw, wherein, the upper surface of the bottom box is concave into arc surface, the lower surface of the upper cover is convex into arc surface, the radian of the arc surface of both is matched with the radian of arc battery surface, arc battery is just contained between upper cover and bottom box.

[0006] Preferably, the upper cover further includes a false air bag mounting step, which enables the false air bag to be fixedly mounted on the upper cover by a screw.

[0007] Preferably, the bottom box further includes a first limiting portion, a second limiting portion and a front edge avoiding step protruding from the arc surface, which together form a containing groove for placing the upper cover and the arc battery. Moreover, two steel pins are fixedly installed on the first limiting portion.

[0008] Preferably, two mounting pin holes are further provided on the opposite side of the false air bag mounting step of the upper cover, the two pin holes pass through the two steel pins on the first limiting portion of the bottom box, and the bottom of the mounting pin hole is inlaid with a magnet for magnetic attraction with the steel pins, so as to realize the buckling of the upper cover and the bottom box.

[0009] Preferably, the height of the front edge avoiding step is lower than that of the first limiting portion and the second limiting portion. By setting different heights, the tab can be stretched out from the front edge avoiding step when the arc battery is placed in the containing groove of the bottom box, and the tab will not be affected when the upper cover is covered.

[0010] Preferably, the false air bag is made of frosted PC material. It has certain strength to support the air bag, can be deformed with the force of the crane clamp, and can resist high temperature during formation.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The device has a simple structure and does not need to modify the clamp formation equipment. The contact surface of the battery clamped by the clamp is an arc surface matched with the outer surface of the battery. In addition, the false air bag is provided, which has certain strength and can be deformed with the force of the crane clamp. When the crane clamp of the clamp formation equipment grabs the arc battery, the false air bag can replace the air bag of the arc battery to bear the weight of the arc battery and the clamp, avoiding the possibility of damage to the arc battery by the clamp, so that the arc battery can be grabbed and transferred after formation. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a perspective view of the utility model as a whole.

[0014] Figure 2It is the perspective view of the bottom box in the utility model;

[0015] Figure 3 It is the perspective view of the upper cover and the upper cover installing false air bag in the utility model;

[0016] Figure 4 It is the schematic diagram of the clamp forming equipment crane clamp and arc-shaped battery of the utility model.

[0017] In the figure: 1-1 bottom box;1-2 upper cover: 1-3 false air bag;1-4 arc-shaped battery air bag;2-1 bottom box arc-shaped arc surface;2-2 steel pin;2-3 front avoiding step;2-4 first limiting portion;2-5 second limiting portion;2-6 arc-shaped battery;3-1 upper cover arc-shaped arc surface;3-2 pin hole;3-3 false air bag installation step;3-4 magnet;4-1 crane clamp;4-2 battery tab. DETAILED DESCRIPTION

[0018] In order to make those skilled in the art better understand the technical scheme of the utility model, the specific implementation of the utility model will be described in detail below in combination with the preferred embodiments and the drawings.

[0019] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0020] In the description of the utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixed connection", "fixed connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected;It can be mechanical connection, or electrical connection;It can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances, and some improvements and decorations can be made without departing from the principle of the utility model, and these improvements and decorations should also be regarded as the protection scope of the utility model.

[0021] As Figure 1 shown, a clamp suitable for arc-shaped battery clamp forming, comprising: bottom box 1-1, upper cover 1-2 and false air bag 1-3, the upper cover 1-2 is assembled on the bottom box 1-1, the false air bag 1-3 is installed on the upper cover 1-2 by flat head screw, arc-shaped battery is left with arc-shaped battery air bag 1-4 after packaging, and arc-shaped battery is just accommodated in the accommodating groove between the upper cover 1-2 and the bottom box 1-1. The device has simple structure and strong operability, and can realize the clamping of arc-shaped battery.

[0022] As Figure 2As shown, specifically, in this scheme, the bottom box 1-1 upper surface is concave into an arc-shaped arc surface 2-1, the bottom box 1-1 further includes a first limiting part 2-4, a second limiting part 2-5 and a front edge avoiding step 2-3 protruding from the arc surface, which together form a containing groove containing the arc-shaped battery, the front edge avoiding step 2-3 is lower than the first limiting part 2-4 and the second limiting part 2-5, by setting different heights, the tab can be effectively avoided. And the first limiting part 2-4 is also fixedly installed with two steel pins 2-2, which facilitates the installation of the upper cover 1-2.

[0023] As shown, Figure 3 Specifically, in this scheme, the upper cover 1-2 lower surface is protruded into an arc-shaped arc surface 3-1, the upper cover further includes a false air bag mounting step 3-3, which facilitates the false air bag 1-3 to be fixedly installed on the upper cover 1-2 by screws. On the opposite side of the false air bag mounting step 3-3 of the upper cover 1-2, two mounting pin holes 3-2 are also provided, the two pin holes 3-2 just pass through the two steel pins 2-2 on the first limiting part 2-4, and then the magnet 3-4 inlaid at the bottom of the mounting pin hole 3-2 is magnetically connected with the steel pin, so as to realize the buckling of the upper cover 1-2 and the bottom box 1-1 together.

[0024] As shown, Figure 4 The arc-shaped arc surface 2-1 concaved on the upper surface of the bottom box 1-1 and the arc-shaped arc surface 3-1 protruded on the lower surface of the upper cover 1-2, the arc radian of both is matched with the arc radian of the arc-shaped battery surface, and the arc-shaped battery is just contained in the arc-shaped battery containing groove formed by the first limiting part 2-4, the second limiting part 2-5 and the front edge avoiding step 2-3 of the bottom box 1-1, and the upper cover 1-2 is magnetically connected with the steel pin 2-2 on the bottom box 1-1 through the pin hole 3-2. When the device clamp works, the arc-shaped battery with the arc-shaped battery air bag 1-4 is placed between the upper cover 1-2 and the bottom box 1-1, and the bottom box 1-1 and the upper cover 1-2 are magnetically connected together. Since the bottom box 1-1 is provided with the front edge avoiding step 2-3, and the height of the front edge avoiding step 2-3 is lower than that of the first limiting part 2-4 and the second limiting part 2-5, the battery tab 4-2 is just avoided from the gap of the front edge avoiding step 2-3 and is not affected. Since the device is provided with the false air bag 1-3, the material of the false air bag 1-3 is frosted PC, which has a certain strength, can be deformed under the force of the crane clamp, and can resist the high temperature in the chemical forming process. When the crane clamp of the chemical forming equipment clamps the battery, by simultaneously clamping the false air bag 1-3 and the arc-shaped battery air bag 1-4, the arc-shaped battery air bag 1-4 is supported, and the weight of the arc-shaped battery and the clamp is also borne, so that the damage of the clamp to the battery is avoided.

Claims

1. A jig suitable for use in the formation of arc-shaped battery jigs, characterized by, The application relates to a battery box, which comprises a bottom box, an upper cover and a false air bag, the upper cover is assembled on the bottom box, the false air bag is installed on the upper cover through a grub screw, the upper surface of the bottom box is concave and arc-shaped, the lower surface of the upper cover is convex and arc-shaped, and the arc degrees of the arc-shaped surfaces of the upper surface of the bottom box and the lower surface of the upper cover are matched with the arc degree of the arc-shaped surface of a battery. The upper cover further comprises a false air bag mounting step.

2. A jig suitable for use in the formation of arc-shaped battery jigs according to claim 1, characterized in that: The bottom box further comprises a first limiting part, a second limiting part and a front edge avoiding step which are convex and arc-shaped and jointly form a containing groove for containing the upper cover and the arc-shaped battery, wherein two steel pins are fixedly installed on the first limiting part.

3. A jig suitable for use in the formation of arc-shaped battery jigs according to claim 2, characterized in that: Two mounting pin holes are further arranged on the opposite side of the false air bag mounting step of the upper cover, a magnet is inlaid at the bottom of the mounting pin hole, and the magnet is magnetically connected with the steel pin.

4. The fixture for jelly-roll formation of arc-shaped battery cells according to claim 3, wherein: The height of the front edge avoiding step is lower than that of the first limiting part and the second limiting part.

5. The fixture for jelly-roll formation of arc-shaped battery cells according to claim 3, wherein: The false air bag is made of frosted PC material.

6. The fixture for jelly-roll formation of arc-shaped battery cells of claim 1, wherein: ​

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