CN215587603U

CN215587603U - Cutting equipment

Info

Publication number: CN215587603U
Application number: CN202121791929.2U
Authority: CN
Inventors: 项罗毅; 赵博; 徐雷; 邵俊华
Original assignee: CALB Technology Co Ltd
Current assignee: China Innovation Aviation Technology Group Co ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-01-21
Anticipated expiration: 2031-08-02

Abstract

The utility model relates to the technical field of batteries, and discloses a cutting device, which is used for cutting a flange of a battery. In the cutting equipment, the first cutting device includes a first pressing plate, a first pressing part, and a first cutting die. The first pressing part is used to press the inner side of the first surface; the first cutting die is used to press on the inner side of the first surface. On the outside of the first surface, a first elastic connecting piece is arranged between the first cutting die and the first pressing plate; the second cutting device includes a second pressing plate, a second pressing part, a second cutting die, and the second cutting die is attached It is arranged on the side wall of the second pressing part; the second pressing part is used to move in the first direction under the driving of the driving device, and press against the inner side of the second surface; the second cutting die is used for the driving device It moves along the first direction under the driving of the driving device and presses against the outside of the second surface, and the second cutting die is also used to move along the side wall of the second pressing part and push the first cutting edge under the driving of the driving device. The first direction moves to cut off the portion of the flange beyond the second pressing portion.

Description

Cutting equipment

Technical Field

The utility model relates to the technical field of batteries, in particular to cutting equipment.

Background

Along with the popularization of new forms of energy, battery technology is also crescent, divide into the battery structure of two upper and lower casings to battery case, for convenient two upper and lower casings weld, and the casing edge can set up the flange, and two upper and lower casings weld on the flange and realize sealing, however, unwelded flange occupies great space, influences the holistic space utilization in battery back in groups.

SUMMERY OF THE UTILITY MODEL

The utility model provides cutting equipment, which is used for solving the problem that in the prior art, a flange positioned at the edge of a battery shell occupies a larger space and influences the overall space utilization rate of batteries after being grouped.

The utility model provides cutting equipment, which is used for cutting a flange at the edge of a shell of a battery and comprises a rack, a first cutting device, a second cutting device and a driving device, wherein the first cutting device, the second cutting device and the driving device are arranged on the rack;

the first cutting device comprises a first pressing plate, a first pressing part and a first cutting die, wherein the first pressing part and the first cutting die are arranged on the first pressing plate, the battery is fixed on the first pressing plate, and the flange comprises a first surface and a second surface, the first surface is arranged towards the first pressing plate, and the second surface is arranged away from the first pressing plate; the first pressing part is used for pressing against the inner side of the first surface; the first cutting die is used for abutting against the outer side of the first surface, a first elastic connecting piece is arranged between the first cutting die and the first pressing plate, and the first elastic connecting piece is used for enabling the first cutting die and the first pressing plate to move relatively along the first direction;

the second cutting device comprises a second pressing plate, a second pressing part and a second cutting die, wherein the second pressing part and the second cutting die are arranged on the second pressing plate, and the second cutting die is attached to the side wall of the second pressing part; the second pressing part is used for moving along the first direction under the driving of the driving device and pressing against the inner side of the second surface; the second cutting die is used for moving along the first direction under the driving of the driving device and abutting against the outer side of the second surface, and the second cutting die is also used for moving along the side wall of the second pressing part and pushing the first cutting die to move along the first direction under the driving of the driving device so as to cut off the part of the flange beyond the second pressing part;

the orthographic projection of the second cutting die on the surface of the first pressing plate is not overlapped with the orthographic projection of the first pressing part on the surface of the first pressing plate.

The advantages or beneficial effects of the technical scheme are as follows:

the cutting equipment can cut off part of the flange at the edge of the shell, so that the space occupied by the flange is reduced, and the space utilization rate is improved. Specifically, during cutting, the first pressing part is pressed against the inner side of the first surface of the flange, the first cutting die is pressed against the outer side of the first surface of the flange, the second pressing part is pressed against the inner side of the second surface of the flange, and the second cutting die is pressed against the outer side of the second surface of the flange; if the second cutting die is driven by the driving device to continuously move and overcome the acting force of the first elastic connecting piece, so that the first cutting die is pushed to move towards one side close to the first pressing plate, the second cutting die cuts the flange along the side wall of the second pressing part, and the part of the flange, which is positioned outside the second pressing part, is cut off.

Drawings

Fig. 1 is a schematic perspective view of a cutting apparatus according to an embodiment of the present invention;

fig. 2 is an exploded view of a first cutting device of the cutting apparatus shown in fig. 1;

FIG. 3 is an assembly view of the first cutting device shown in FIG. 2;

fig. 4 is a cross-sectional view a-a of the first cutting device shown in fig. 3;

fig. 5 is an exploded view of a second cutting device of the cutting apparatus shown in fig. 1;

FIG. 6 is a schematic view of the second pressing portion shown in FIG. 5;

FIG. 7 is an assembly view of a second cutting device of the cutting apparatus shown in FIG. 5;

FIG. 8 is a B-B cross-sectional view of a second cutting device of the cutting apparatus shown in FIG. 7;

FIG. 9 is a C-C cross-sectional view of a second cutting device of the cutting apparatus shown in FIG. 7;

fig. 10 is a partial effect view of the first and second cutting devices shown in fig. 1 when cutting the flange of the battery.

Reference numerals:

10-a first cutting device; 11-a first platen; 111-locating holes; 12-a first press fit; 13-first cutting die; 14-a first elastic connector; 15-a first guide shaft; 16-a battery holder; 161-positioning groove; 17-a first fixed column; 18-a resilient support; 181-an elastic supporting block; 182-a second fixing column; 183-spring; 19-a grip;

20-a second cutting device; 21-a second platen; 211-a positioning post; 22-a second press fit; 221-a body; 2211-lightening holes; 2212-avoiding holes; 222-a flange; 23-second cutting die; 24-a second elastic connector; 25-a second guide shaft;

30-a drive device; 40-a frame;

50-a battery; 51-a flange; 511-a first surface; 512-a second surface;

60-sliding rail.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides cutting equipment, which is used for solving the problem that in the prior art, the flange at the periphery of a battery shell occupies a larger space and influences the overall space utilization rate of batteries after being grouped.

It should be noted that the flange is the outward flange of battery case for make things convenient for the battery to go up the lower casing or the welding assembly between battery upper cover plate and the lower casing, and the back of welding, the casing welding seam has occupied great space promptly except that the weld line, and this space is not utilized after the battery is follow-up in groups, and holistic space utilization is lower after the battery is in groups.

The cutting device is used for cutting a flange 51 at the edge of a shell of a battery 50, and comprises a frame 40, a first cutting device 10, a second cutting device 20 and a driving device 30, wherein the first cutting device 10, the second cutting device 20 and the driving device 30 are arranged on the frame 40, and the first cutting device 10 and the second cutting device 20 are arranged at intervals along a first direction;

as shown in fig. 2, 3, 4 and 10, the first cutting device 10 includes a first pressing plate 11, a first pressing portion 12 disposed on the first pressing plate 11, and a first cutting die 13, the battery 50 is fixed on the first pressing plate 11, and the flange 51 includes a first surface 511 disposed toward the first pressing plate 11 and a second surface 512 disposed away from the first pressing plate 11; the first pressing portion 12 is used for pressing against the inner side of the first surface 511; the first cutting die 13 is used for abutting against the outer side of the first surface 511, a first elastic connecting piece 14 is arranged between the first cutting die 13 and the first pressing plate 11, and the first elastic connecting piece 14 is used for enabling the first cutting die 13 and the first pressing plate 11 to move relatively along a first direction;

as shown in fig. 6, 8, 9 and 10, the second cutting device 20 includes a second pressing plate 21, and a second pressing portion 22 and a second cutting die 23 disposed on the second pressing plate 21, and the second cutting die 23 is disposed to fit the sidewall of the second pressing portion 22; the second pressing part 22 is driven by the driving device 30 to move along the first direction and press against the inner side of the second surface 512; the second cutting die 23 is configured to move in the first direction under the driving of the driving device 30 and abut against the outer side of the second surface 512, and the second cutting die 23 is further configured to move along the sidewall of the second pressing portion 22 and push the first cutting die 13 to move in the first direction under the driving of the driving device 30, so as to cut off the portion of the flange 51 beyond the second pressing portion 22;

the orthographic projection of the second cutting die 23 on the surface of the first pressing plate 11 is not overlapped with the orthographic projection of the first pressing part 12 on the surface of the first pressing plate 11.

Specifically, the first direction may be a vertical direction, a horizontal direction, or other directions, as shown in fig. 1, the first direction is specifically described as the vertical direction in this embodiment, that is, the first cutting device 10 and the second cutting device 20 are arranged up and down along the vertical direction, where the first cutting device 10 is located below the second cutting device 20.

In use, the battery 50 is placed on the first pressing plate 11 in the first cutting device 10, and the flange 51 on the battery 50 is cut under the cooperation of the first cutting device 10 and the second cutting device 20, and for the convenience of understanding, the structure of the flange 51 is described herein, and as shown in fig. 10, the flange 51 includes a first surface 511 and a second surface 512, the first surface 511 refers to a surface disposed toward the first pressing plate 11, the second surface 512 refers to a surface disposed away from the first pressing plate 11, and "an inner side of the first surface 511/the second surface 512" refers to a side of the first surface 511/the second surface 512 close to the case of the battery 50, and "an outer side of the first surface 511/the second surface 512" refers to a side of the first surface 511/the second surface 512 away from the case of the battery 50.

As shown in fig. 2, 3, 4 and 10, the first cutting device 10 includes a first pressing portion 12 and a first cutting die 13 in addition to the first pressing plate 11, wherein, when the battery 50 is placed on the first pressing plate 11, the first pressing portion 12 and the first cutting die 13 are both located below the flange 51, and the first pressing portion 12 is interposed between the first cutting die 13 and the casing of the battery 50. The first pressing part 12 can contact with the first surface 511 of the flange 51 and press against the inner side (the side close to the casing of the battery 50) of the first surface 511, and because the first pressing part 12 is fixed relative to the first pressing plate 11, the first pressing part 12 can provide an upward supporting force for the flange 51 during the cutting process of the flange 51, and the flange 51 located right above the first pressing part 12 is prevented from bending downward.

The first cutting die 13 is also in contact with the first surface 511 of the flange 51, and different from the first pressing portion 12, the first cutting die 13 is pressed against the outer side of the first surface 511 (the side away from the casing of the battery 50), and a first elastic connecting member 14 is disposed between the first cutting die 13 and the first pressing plate 11, the first elastic connecting member 14 may be a spring or a member made of other elastic materials, and the first elastic connecting member 14 can be compressed or extended along a first direction, so that under the action of the first elastic connecting member 14, the first cutting die 13 and the first pressing plate 11 can move relatively along the first direction.

As shown in fig. 5, a step hole penetrating through the thickness of the first cutting die 13 is formed in the first cutting die 13, the first fixing column 17 penetrates through the step hole, a fixture block is arranged at the end of the first fixing column 17, the cross-sectional dimension of the fixture block is larger than the diameter of a smaller hole in the step hole, and the other end of the first fixing column 17 is fixedly connected with the first pressing plate 11.

As shown in fig. 6, 8, 9, and 10, the second cutting device 20 includes a second pressing plate 21, a second pressing portion 22, and a second cutting die 23, wherein the second cutting die 23 is disposed to be attached to a sidewall of the second pressing portion 22, and the second cutting die 23 can move along the sidewall of the second pressing portion 22 relative to the second pressing portion 22. Specifically, the second nip 22 can be moved in the first direction by the driving device 30, and is pressed against the inner side (the side close to the case of the battery 50) of the second surface 512 of the flange 51, the second cutting die 23 can be moved in the first direction by the driving means 30, and is pressed against the outside of the second surface 512 of the flange 51 (the side away from the case of the battery 50), and when the second cutting die 23 is pressed against the outside of the second surface 512 of the flange 51, the second press fit portion 22 is pressed against the inner side of the second surface 512 of the flange 51, at the same time or already, and, at this time, if the second cutting die 23 is driven by the driving device 30 to move along the side wall of the second pressing portion 22, the second cutting die 23 will exert a pressure on the first cutting die 13 via the flange 51, and the first cutting die 13 will be moved in the first direction to the side near the first presser plate 11 by this force, and the flange 51 will also be broken off from the edge of the second nip 22.

In the cutting process, the second cutting die 23 cuts along the side wall of the second pressing portion 22, and the orthographic projection of the second cutting die 23 on the surface of the first pressing plate 11 is not overlapped with the orthographic projection of the first pressing portion 12 on the surface of the first pressing plate 11, so that the second cutting die 23 is prevented from interfering with the first pressing portion 12 in the downward moving process.

Because the second cutting die 23 can cut the flange 51 along the side wall of the second press-fit portion 22, and the second press-fit portion 22 and the first press-fit portion 12 compress the inner side of the flange 51, the flange 51 remaining after cutting is relatively flat, the cut edge of the flange 51 is relatively neat, the phenomena of flash, burr and the like can be avoided, and the width of the flange 51 remaining after cutting can be accurately controlled.

Further, an outer edge of an orthographic projection of the second pressing portion 22 on the surface of the first pressing plate 11 coincides with an outer edge of an orthographic projection of the first pressing portion 12 on the surface of the first pressing plate 11, that is, an outer side wall of the second pressing portion 22 is aligned with an outer side wall of the first pressing portion 12.

Moreover, the orthographic inner edge of the second cutting die 23 on the surface of the first pressing plate 11 is coincident with the orthographic inner edge of the first cutting die 13 on the surface of the first pressing plate 11, that is, the inner side wall of the second cutting die 23 is aligned with the inner side wall of the first cutting die 13.

Thus, the flange 51 can be cut more accurately, and the cutting effect is further improved.

In order to avoid the cutting of the welding seam of the flange 51, the area where the second pressing part 22 contacts the second surface 512 of the flange 51 covers the welding seam of the flange 51, or the area where the second pressing part 22 contacts the second surface 512 of the flange 51 is located on the side of the welding seam of the flange 51 far away from the shell of the battery 50, so that the cutting of the welding seam can be avoided, and the good sealing performance of the shell can be ensured.

The driving device 30 can drive the second stitching part 22 and the second cutting die 23 to move along the first direction, specifically, the driving device 30 can directly apply a driving force to the second stitching part 22 and the second cutting die 23, so that the second stitching part 22 and the second cutting die 23 move independently, for example, the driving device 30 first drives the second pressing portion 22 to move, so that the second pressing portion 22 is pressed against the inner side of the second surface 512 of the flange 51, then, the second cutting die 23 is driven to move, and the second cutting die 23 is pressed against the outer side of the second surface 512 of the flange 51, and thereafter, the driving device 30 drives the second cutting die 23 to move continuously, and the second cutting die 23 pushes the first cutting die 13 to move towards the side close to the first pressing plate 11 against the acting force of the first elastic connecting piece 14 between the first cutting die 13 and the first pressing plate 11, so as to cut the flange 51 at the edge position of the second pressing part 22.

Or, the driving device 30 may also drive the second pressing plate 21 to move along the first direction, so that the second pressing portion 22 and the second cutting die 23 move simultaneously with the second pressing plate 21, when the second pressing portion 22 abuts against the flange 51, the driving device 30 drives the second cutting die 23 to continue to move along the first direction, and the second cutting die 23 overcomes the acting force of the first elastic connecting member 14 between the first cutting die 13 and the first pressing plate 11, and pushes the first cutting die 13 to move to a side close to the first pressing plate 11, so as to cut the flange 51 at the edge position of the second pressing portion 22.

Moreover, the driving device 30 can also drive the second pressing plate 21 to move along the first direction, so that the second pressing portion 22 and the second cutting die 23 move simultaneously with the second pressing plate 21, the second pressing portion 22 is elastically connected to the second pressing plate 21, when the second pressing portion 22 abuts against the flange 51, the driving device 30 can continue to drive the second pressing plate 21 to move along the first direction, at this time, the second pressing portion 22 does not move, the second pressing plate 21 approaches to the second pressing portion 22 and drives the second cutting die 23 to move downwards continuously, the second cutting die 23 overcomes the acting force of the first elastic connecting member 14 located between the first cutting die 13 and the first pressing plate 11, and pushes the first cutting die 13 to move towards the side close to the first pressing plate 11, so as to cut the flange 51 at the edge position of the second pressing portion 22.

The driving manner of the driving device 30 includes, but is not limited to, the above-mentioned manner, which is not listed here.

In some embodiments, the second cutting die 23 is fixedly connected to the second pressing plate 21; a second elastic connecting piece 24 is arranged between the second pressing part 22 and the second pressing plate 21, and the second elastic connecting piece 24 is used for enabling the second pressing part 22 and the second pressing plate 21 to move relatively along the first direction; and the distance between the surface of the second press fit part 22 departing from the second press plate 21 and the second press plate 21 is not less than the distance between the surface of the second cutting die 23 departing from the second press plate 21 and the second press plate 21;

the driving device 30 is used for driving the second pressing plate 21 to move along the first direction so as to drive the pressing portion and the second cutting die 23 to move.

Specifically, the second cutting die 23 is fixedly connected to the second pressing plate 21, that is, the second cutting die 23 and the second pressing plate 21 will move synchronously under the driving of the driving device 30. A second elastic connecting member 24 is disposed between the second pressing portion 22 and the second pressing plate 21, and the second elastic connecting member 24 may be a spring or a member made of an elastic material. The second elastic connection member 24 may contract or extend in the first direction so that the second nip portion 22 and the second presser plate 21 may be relatively close to or relatively far from each other.

Specifically, the second press fit portion 22 has a step hole penetrating through the thickness of the second press fit portion, a pin shaft is arranged in the step hole, one end of the pin shaft is fixedly connected with the second pressing plate 21, the other end of the pin shaft penetrates through the step hole, a clamping block is arranged at the end of the pin shaft, the size of the clamping block is larger than the inner diameter of a smaller hole in the step hole, the spring is sleeved on the pin shaft and is arranged between the second press fit portion 22 and the second pressing plate 21, on one hand, the pin shaft enables the second press fit portion 22 not to be separated from the second pressing plate 21, on the other hand, when relative movement is generated between the second press fit portion 22 and the second pressing plate 21, the pin shaft further has a guiding function, and at this time, the pin shaft is equivalent to the second guiding shaft 25 in the following.

Alternatively, as shown in fig. 9, the second cutting die 23 is fixedly connected to the second pressing plate 21, the second cutting die 23 has a groove-shaped structure, the second pressing portion 22 is located in the groove, and the pin (the second guide shaft 25) is fixedly connected to the bottom wall of the groove.

Under the driving of the driving device 30, when the second pressing portion 22 is not pressed against the flange 51, the second pressing portion 22 and the second cutting die 23 will move synchronously with the second pressing plate 21, and after the second pressing portion 22 presses against the flange 51, since the battery 50 is fixed on the first presser plate 11, the second presser part 22 will not be able to move any further, the second elastic connecting member 24 between the second pressing portion 22 and the second pressing plate 21 will contract with the continued movement of the second pressing plate 21, and the second cutting die 23 will also move with the second pressing plate 21, that is, the second cutting die 23 will move along the sidewall of the second pressing portion 22, and the second cutting die 23 overcomes the acting force of the first elastic connecting member 14 between the first cutting die 13 and the first pressing plate 11 to push the first cutting die 13 to move to the side close to the first pressing plate 11, so as to cut the flange 51 at the edge position of the second pressing portion 22.

For the second pressing plate 21, a surface of the second pressing portion 22 away from the second pressing plate 21 may be flush with a surface of the second cutting die 23 away from the second pressing plate 21, at this time, the second pressing portion 22 and the second cutting die 23 will contact the second surface 512 of the flange 51 at the same time, since the battery 50 is fixed on the first pressing plate 11, the second pressing portion 22 will not move continuously after contacting the flange 51 of the battery 50, but since the second pressing portion 22 is connected with the second pressing plate 21 through the second elastic connecting member 24, the second pressing plate 21 can drive the second cutting die 23 to move continuously under the driving of the driving device 30, so that the flange 51 is processed at an edge position of the second pressing portion 22. Or, as shown in fig. 9 and 10, the surface of the second pressing portion 22 away from the second pressing plate 21 protrudes out of the surface of the second cutting die 23 away from the second pressing plate 21, at this time, the second pressing portion 22 will contact with the flange 51 of the battery 50 first, and in the process that the second pressing plate 21 moves downwards continuously, the pressure between the second pressing portion 22 and the flange 51 will increase gradually, so that under the mutual matching of the second pressing portion 22 and the first pressing portion 12, the clamping effect of the two pressing portions on the flange 51 will be better, and the edge cutting of the flange 51 will be more tidy.

The specific shapes of the first cutting die 13, the second cutting die 23, the first pressing portion 12, and the second pressing portion 22 are related to the shape of the flange 51, specifically, if the flange 51 surrounds the periphery of the battery 50 casing, the first cutting die 13, the second cutting die 23, the first pressing portion 12, and the second pressing portion 22 have a frame-shaped structure, and if the flange 51 is disposed on one side or both sides of the battery 50 casing, the first cutting die 13, the second cutting die 23, the first pressing portion 12, and the second pressing portion 22 are disposed at least along the corresponding side edges.

One of the first pressing plate 11 and the second pressing plate 21 is provided with a plurality of positioning holes, and the other one of the first pressing plate 11 and the second pressing plate 21 is provided with positioning columns which correspond to the positioning holes one to one, and the positioning columns are used for being inserted into the positioning holes when the first pressing plate 11 and the second pressing plate 21 are relatively close to each other.

Specifically, as shown in fig. 2 and 6, a plurality of positioning holes 111 are formed in the first pressing plate 11, positioning pillars 211 corresponding to the positioning holes 111 one by one are formed in the second pressing plate 21, the positioning pillars 211 extend in the first direction and have a certain length, and when the driving device 30 drives the second pressing plate 21 to move downward, the positioning pillars 211 can be inserted into the positioning holes 111 and continue to move in the positioning holes 111, so that the second pressing plate 21 is guided to move, the second pressing plate 21 is prevented from being offset, the second cutting die 23 is prevented from being misaligned with the flange 51, and the cutting accuracy is improved.

In the cutting device, the first cutting die 13 and the first pressing plate 11 can move relatively under the action of the first elastic connecting piece 14, and the second pressing part 22 and the second pressing plate 21 can move relatively under the action of the second elastic connecting piece 24, so as to ensure that the moving directions are the first direction, in some embodiments, as shown in fig. 2 and 4, a plurality of first guide shafts 15 extending along the first direction are arranged between the first cutting die 13 and the first pressing plate 11, and if the first elastic connecting piece 14 is a spring, the spring can be sleeved on the first guide shafts 15; and/or, as shown in fig. 6 and 9, a plurality of second guiding shafts 25 extending along the first direction are disposed between the second pressing portion 22 and the second pressing plate 21, and if the second elastic connecting member 14 is a spring, the spring can be sleeved on the second guiding shafts 25.

The first guide shaft 15 and the second guide shaft 25 may both play a role in guiding along the first direction, and the number of the first guide shaft 15 and the second guide shaft 25 is not limited, and may be one or multiple, and is not specifically limited herein.

In some embodiments, the second press portion 22 includes a body 221 and a flange 222 disposed on a surface of the body 221 facing away from the second press plate 21, and the flange 222 is disposed along an edge of the body 221.

As shown in fig. 7, the second press-fit portion 22 includes a body 221, an edge of a surface of the body 221 facing away from the second press plate 21 is provided with a flange 222, the flange 222 has a certain height, and the flange 222 also has a certain thickness, for example, the thickness of the flange 222 is greater than or equal to 1mm and less than or equal to 5mm, because the flange 222 protrudes out of the surface of the body 221, the second press-fit portion 22 is pressed against the flange 51 through the flange 222, further, an orthographic projection of the flange 222 on the surface of the flange 51 covers a welding seam of the flange 51, or the orthographic projection of the flange 222 on the surface of the flange 51 is located on a side of the welding seam of the flange 51 away from a housing of the battery 50, so that the second cutting die 23 will cut along an outer wall of the flange 222, and the welding seam of the flange 51 will not be cut, thereby ensuring the sealing performance of the housing.

In addition, when the flange 51 is lower than the top surface of the housing, by making the height of the flange 222 not less than the height difference between the second surface 512 of the flange 51 and the top surface of the housing, it is possible to ensure that the flange 222 can contact the flange 51; moreover, the flange 222 is narrow, and when the flange 222 presses against the flange 51, the pressure received by the flange 51 per unit area is large, so that the flange 51 is pressed by the flange 222 well.

Further, the body 221 is provided with a plurality of lightening holes 2211. As shown in fig. 7, the weight-reducing hole 2211 penetrates the thickness of the main body 221, so that the weight of the main body 221 can be reduced, the driving power of the driving device 30 can be reduced, and the electric power and energy can be saved.

With continued reference to fig. 7, the body 221 is further provided with an avoiding hole 2212, and the avoiding hole 2212 is used for avoiding the pole of the battery 50. Because the utmost point post salient of battery 50 is in the top surface of battery 50, in order to avoid body 221 and battery 50's utmost point post to produce the interference, thereby damage utmost point post, be provided with on the body 221 and dodge hole 2212, the position of dodging hole 2212 corresponds with the position of utmost point post, and dodge the cross sectional dimension of hole 2212 and be not less than the cross sectional dimension of utmost point post, so, dodge hole 2212 and provide the space of dodging for utmost point post.

Specifically, the body 221 is provided with two avoiding holes 2212, and the two avoiding holes 2212 are located at two ends of the body 221.

In some embodiments, the first pressing plate 11 is provided with a battery 50 fixing seat 16, the battery 50 fixing seat 16 is provided with a positioning groove 161 for accommodating the battery 50, and a side wall of the positioning groove 161 forms the first pressing portion 12.

As shown in fig. 2, 4, 5, and 10, the fixing seat 16 of the battery 50 is provided with a positioning groove 161 for accommodating the battery 50, the length and width of the positioning groove 161 match with the length and width of the battery 50, the depth of the positioning groove 161 matches with the height between the first surface 511 of the flange 51 and the bottom surface of the battery 50, after the battery 50 is placed in the positioning groove 161, the battery 50 can be accurately positioned, the flange 51 of the battery 50 extends out of the positioning groove 161, and the side wall of the positioning groove 161 can support the flange 51 under the flange 51, thereby achieving the effect of the first press-fit part 12.

Further, the bottom wall of the positioning groove 161 is provided with a plurality of elastic supporting portions 18, and the elastic supporting portions 18 are used for contracting when the battery 50 is subjected to external pressure, so that the first pressing portion 12 is pressed against the inner side of the first surface 511, and are also used for extending after the external force disappears, so that the first pressing portion 12 is separated from the first surface 511.

Specifically, as shown in fig. 10, when cutting the flange 51 of the case rim, the battery 50 is first placed in the positioning groove 161, at which time the first surface 511 of the flange 51 is not in contact with the top surface of the side wall of the positioning groove 161; the driving device 30 is started, under the driving of the driving device 30, the second pressing plate 21 moves towards a side close to the second pressing plate 21 along the first direction, and drives the second pressing portion 22 and the second cutting die 23 to move synchronously, after the second pressing portion 22 contacts with the flange 51, along with the continuous movement of the second pressing plate 21, the second pressing portion 22 will generate pressure on the battery 50, and make the battery 50 compress the elastic supporting portion 18 until the flange 51 contacts with the side wall of the positioning groove 161, at this time, the battery 50 is fixed in the positioning groove 161, the second pressing portion 22 abuts against the inner side of the second surface 512 of the flange 51, and cannot move continuously, and the second cutting die 23 can generate relative movement with the second pressing portion 22 under the driving of the second pressing plate 21, and cuts off the portion of the flange 51 outside the second pressing portion 22 along the edge of the second pressing portion 22.

After the cutting is completed, the second pressing plate 21 is driven by the driving device 30 to move in the opposite direction to separate the second pressing portion 22 from the battery 50, the battery 50 moves upward under the elastic restoring force of the elastic support portion 18, and the flange 51 is separated from the sidewall of the positioning groove 161, so that the battery 50 can be conveniently taken out from the positioning groove 161.

As shown in fig. 2 and 4, the elastic supporting portion 18 includes an elastic supporting block 181, a second fixing column 182 and a spring 183 sleeved on the second fixing column 182, a through hole penetrating through the thickness of the bottom wall of the positioning groove 161 is provided, a step hole penetrating through the thickness of the elastic supporting block 181 is provided on the elastic supporting block 181, the second fixing column 182 penetrates through the through hole, a fixture block is provided at an end of the second fixing column 182, a cross-sectional dimension of the fixture block is larger than a diameter of a smaller hole in the step hole, the other end of the second fixing column 182 is fixedly connected with the first pressing plate 11, and when the elastic supporting block 181 is pressed, the elastic supporting block 181 compresses the spring and moves to a side close to the first pressing plate 11 along the second fixing column 182.

The second fixing column 182 can prevent the elastic supporting block 181 from separating from the first pressing plate 11, and can play a guiding role in the up-and-down movement process of the elastic supporting block 181.

The number of the elastic supports 18 is not limited, and may be two, three, four, or the like, and is not particularly limited herein.

In the cutting apparatus, the first pressing plate 11 is slidably connected to the frame 40 along a second direction, and the second direction is perpendicular to the first direction.

Taking the first direction as an example of a vertical direction, when cutting is performed, the first pressing plate 11 can slide out from under the second pressing plate 21 along the second direction, after the battery 50 is placed on the first pressing plate 11, the first pressing plate 11 can slide to under the second pressing plate 21, the flange 51 is cut under the cooperation of the first pressing part 12, the second pressing part 22, the first cutting die 13 and the second cutting die 23, and after the cutting is completed, the first pressing plate 11 slides out from under the second pressing plate 21 along the second direction again, so that the battery 50 is taken out, and thus, the battery 50 can be taken out and placed conveniently.

In addition, as shown in fig. 1, slide rails 60 are disposed on both sides of the first pressing plate 11 on the table top of the frame 40, and the first pressing plate 11 can slide along the slide rails 60.

As shown in fig. 2, 3, 4 and 5, in order to apply a force to the first presser plate 11 to slide the first presser plate, a grip 19 is provided on the first presser plate 11, and the grip 19 may be a handle, a bracelet or another structure.

As can be seen from the above description, in the embodiment of the present invention, the second cutting die can move along the sidewall of the second pressing portion and cut the flange, and the second pressing portion and the first pressing portion compress the inner side of the flange, so that the flange remaining after cutting is relatively flat, the edge of the flange is relatively neat, the phenomena of flash, burr and the like can be avoided, and the width of the flange remaining after cutting can be accurately controlled.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A cutting device, characterized in that it is used for cutting a flange located at the edge of a casing of a battery, comprising a frame and a first cutting device, a second cutting device, and a driving device arranged on the frame, so the first cutting device and the second cutting device are arranged at intervals along the first direction;

The first cutting device includes a first pressing plate, a first pressing part and a first cutting die arranged on the first pressing plate, the battery is fixed on the first pressing plate, and the flange includes a face toward the first pressing plate. the first surface provided by the first pressing plate and the second surface provided away from the first pressing plate; the first pressing part is used to press against the inner side of the first surface; the first cutting die is used for Pressed against the outside of the first surface, a first elastic connecting piece is arranged between the first cutting die and the first pressing plate, and the first elastic connecting piece is used to make the first cutting die and the first pressing plate. the first pressing plate can move relatively along the first direction;

The second cutting device includes a second pressing plate, a second pressing part and a second cutting die arranged on the second pressing plate, and the second cutting die is fitted to the side wall of the second pressing part set; the second pressing part is used to move along the first direction under the driving of the driving device, and press against the inner side of the second surface; the second cutting die is used to The driving device moves along the first direction and presses against the outer side of the second surface, and the second cutting die is also used for pressing along the second surface under the driving of the driving device. the side wall of the part moves and pushes the first cutting die to move along the first direction, so as to cut off the part of the flange beyond the second pressing part;

The orthographic projection of the second cutting die on the surface of the first pressing plate does not overlap with the orthographic projection of the first pressing portion on the surface of the first pressing plate.

2 . The cutting device according to claim 1 , wherein the area where the second pressing part is in contact with the second surface covers the welding seam of the flange, or the second pressing part The area in contact with the second surface is located on the side of the weld of the flange remote from the casing of the battery.

3. The cutting device according to claim 1, wherein the second cutting die is fixedly connected with the second pressing plate;

A second elastic connecting piece is arranged between the second pressing portion and the second pressing plate, and the second elastic connecting piece is used to enable the second pressing portion and the second pressing plate to move along the Relative movement occurs in the first direction; and the distance between the surface of the second pressing part facing away from the second pressing plate and the second pressing plate is not less than the distance between the surface of the second cutting die facing away from the second pressing plate and the the distance between the second pressing plates;

The driving device is used for driving the second pressing plate to move along the first direction, so as to drive the second pressing part and the second cutting die to move.

4 . The cutting device according to claim 3 , wherein the distance between the surface of the second pressing portion facing away from the second pressing plate and the second pressing plate is greater than the distance from the second cutting die away from the second pressing plate. 5 . The distance between the surface of the second pressing plate and the second pressing plate.

5 . The cutting device according to claim 3 , wherein one of the first pressing plate and the second pressing plate is provided with a plurality of positioning holes, and the other is provided with the positioning holes one by one. 6 . The corresponding positioning column is used for being inserted into the positioning hole when the first pressing plate and the second pressing plate are relatively close to each other.

6. The cutting device according to claim 3, wherein a plurality of first guide shafts extending along the first direction are provided between the first cutting die and the first pressing plate;

And/or, a plurality of second guide shafts extending along the first direction are disposed between the second pressing portion and the second pressing plate.

7. The cutting device according to any one of claims 1 to 6, wherein the second pressing portion comprises a body and a convex edge provided on a surface of the body facing away from the second pressing plate, and the The convex edge is arranged along the edge of the body.

8. The cutting device according to any one of claims 1 to 6, wherein a battery fixing seat is provided on the first pressing plate, and a positioning groove for accommodating the battery is provided on the battery fixing seat;

The side wall of the positioning groove forms the first pressing portion.

9 . The cutting device according to claim 8 , wherein the bottom wall of the positioning groove is provided with a plurality of elastic support parts, and the elastic support parts are used for shrinking when the battery is subjected to external pressure, so that the The first pressing portion is pressed against the inner side of the first surface, and the elastic support portion is also used to extend after the external force disappears, so as to separate the first pressing portion from the first surface.

10 . The cutting device according to claim 1 , wherein the first pressing plate is slidably connected to the frame along a second direction, and the second direction is the same as the first direction. 11 . vertical.