CN111570573A - Soft packet of lithium cell utmost point ear bending device - Google Patents

Abstract

The invention discloses a soft-pack lithium battery pole lug bending device, which comprises a base which is driven by a first cylinder to connect an upper bearing pad, a support frame is connected to the base, and one side of the support frame is slidably connected with a bending lower knife installation The lower bending knife mounting seat is provided with a rotor bearing and a lower bending knife. The rotor bearing and the upper bearing pad are rolled and fitted together. A second cylinder is installed on the support frame, and the second cylinder is driven to connect the upper bending knife. A third cylinder is installed in the support frame, one end of the third cylinder is connected with a bending top block, and the bending top block is arranged on one side of the upper bending knife and the lower bending knife. In the present invention, the first air cylinder drives the upper bearing block to move to drive the lower bending knife to move, the second air cylinder drives the upper bending knife to move to compress the tab, and the tab pressing the buffer block cooperates with the lower bending knife to press Tightening the pole lugs, assisting the bending of the pole lugs, and the third cylinder driving the bending top block forward for bending processing, and the overall process improves the bending efficiency.

Description

A soft-pack lithium battery tab bending device

technical field

The invention relates to the technical field of lithium battery tab bending, in particular to a soft-pack lithium battery tab bending device.

Background technique

Mobile phone batteries, Bluetooth batteries, laptop batteries, etc. used in our lives all need to use tabs. The battery is divided into positive and negative poles. The pole ear is the metal conductor that draws the positive and negative poles from the battery core. Generally speaking, the ears of the positive and negative poles of the battery are the contact points during charging and discharging. This contact point is not The copper sheet we see on the outside of the battery is a connection inside the battery.

Soft-pack ternary power lithium-ion battery, the tab is an important part of the lithium battery, in order to match different products, the tab needs to go through a bending process, but at this stage, the bending efficiency is low, and the R angle of the bent tab is large, which seriously affects Welding quality in subsequent processes. Therefore, we need to provide a flexible package lithium battery tab bending device to solve the above-mentioned technical problems.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a soft-packed lithium battery pole lug bending device. The first cylinder drives the upper bearing pad to move, and the moving upper bearing pad drives the rotor bearing to move up and down, and drives the bending lower knife mounting seat to move along with it. With the rotor bearing moving upward, it drives the lower bending knife to move to a limited position and then pushes the electrode lug of the battery core; the second cylinder drives the upper bending knife mounting seat to move and drives the upper bending knife and the tab to press the buffer block to move down , the tab pressing buffer block cooperates with the lower bending knife to press the tab to protect the tab to avoid warping during the bending process, and at the same time, the upper bending knife moves quickly and cooperates with the lower bending knife to align the tab. After pressing, the third cylinder drives the bending top block to move forward to perform bending, and the whole process improves the bending efficiency, so as to solve the problems raised in the above-mentioned background art.

In order to achieve the above purpose, the present invention provides the following technical solutions: a soft-pack lithium battery tab bending device, comprising a base, the upper end of the base is fixedly connected with a first fixing plate, and the upper end of the first fixing plate is fixed A first air cylinder is installed, one end of the piston rod of the first air cylinder is fixedly connected with an upper bearing pad, the upper end of the base is fixedly connected with a support frame, and one side of the support frame is slidably connected with a bent lower part. Knife mounting seat, a rotor bearing is fixedly installed at the bottom of the lower bending knife mounting seat, one end of the rotor bearing is arranged in rolling fit with the upper bearing pad, and the upper end of the lower bending knife mounting seat is fixed by bolts A lower bending knife is connected, a second cylinder is fixedly installed on the upper end of the support frame, and one end of the piston rod of the second cylinder is fixedly connected with a bending upper knife mounting seat, and the bending upper knife mounting seat is slidably connected On one side of the support frame, and one end of the upper bending knife mounting seat is fixedly connected with the upper bending knife by bolts, one side of the upper bending knife is provided with a tab pressing buffer block, and the support A third cylinder is fixedly installed on the inner side of the frame, and one end of the piston rod of the third cylinder is fixedly connected with a bending top block, and the bending top block is arranged on one side of the upper bending knife and the lower bending knife.

Preferably, a first linear slide rail is fixedly installed on one side of the first fixing plate, and the upper bearing pad is installed and slidably connected to the first linear slide rail.

Preferably, the upper bearing spacer is configured as a trapezoidal plate, and the upper part of the upper bearing spacer is provided with a hypotenuse.

Preferably, a second linear slide rail is fixedly installed on one side of the support frame, and one end of the lower bending knife mounting seat is slidably connected to the second linear slide rail.

Preferably, the upper end of the support frame is fixedly connected with a second fixing plate, and the second air cylinder is mounted on the second fixing plate.

Preferably, a third linear slide rail is fixedly connected to one side of the support frame, and one end of the upper bending knife mounting seat is slidably connected to the third linear slide rail.

Preferably, the lower bending knives and the upper bending knives are vertically symmetrically arranged in two groups, and a linear bearing seat is fixedly installed on one side of the upper bending knives of each group by bolts, and the connecting A spring plunger is provided in the hole to connect the tab to press the buffer block.

Compared with the prior art, the present invention has the beneficial effects: the first cylinder drives the upper bearing pad to move, the moving upper bearing pad drives the rotor bearing to move up and down, and drives the lower bending knife mounting seat to move upward with the rotor bearing , drive the lower bending knife to move to a limited position and then top the electrode lug of the battery core; the second cylinder drives the upper bending knife mounting seat to move and drives the upper bending knife and the tab pressing buffer block to move down, and the tab pressing The buffer block cooperates with the lower bending knife to compress the tab to protect the tab to avoid warping during the bending process. At the same time, the upper bending knife moves quickly and cooperates with the lower bending knife to compress the tab. The third The cylinder drives the bending top block to move forward for bending, and the whole process improves the bending efficiency.

Description of drawings

Fig. 1 is the front view structure schematic diagram of the present invention;

Fig. 2 is the side view structure schematic diagram of the present invention;

FIG. 3 is a schematic side view of the structure of the present invention.

In the figure: 1, the base; 2, the first fixed plate; 3, the first linear slide rail; 4, the first cylinder; 5, the second linear slide rail; 6, the support frame; 7, the second fixed plate; 8 , Second cylinder; 9. Bending upper knife mounting seat; 10. Bending upper knife; 11. Linear bearing seat; 12. Pole lug pressing buffer block; 13. Bending lower knife; 14. Bending lower knife installation seat; 15, rotor bearing; 16, upper bearing pad; 17, third linear slide rail; 18, third cylinder; 19, bending top block.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

1-3, the present invention provides a technical solution: a soft-pack lithium battery tab bending device, including a base 1;

The upper end of the base 1 is fixedly connected with a first fixing plate 2 , the upper end of the first fixing plate 2 is fixedly installed with a first cylinder 4 , and one end of the piston rod of the first cylinder 4 is fixedly connected with an upper bearing pad 16 . The upper end is fixedly connected with the support frame 6, and one side of the first fixing plate 2 is fixedly installed with the first linear slide rail 3, and the top bearing pad 16 is installed and slidably connected to the first linear slide rail 3, and the top The bearing pad 16 is set as a trapezoidal plate, and the upper part of the upper bearing pad 16 is provided with a hypotenuse, and the first cylinder 4 horizontally drives the upper bearing pad 16 to slide horizontally along the first linear slide rail 3;

A bending lower knife mounting seat 14 is slidably connected to one side of the support frame 6 , a rotor bearing 15 is fixedly installed at the bottom of the bending lower knife mounting seat 14 , and one end of the rotor bearing 15 is arranged in rolling fit with the upper bearing spacer 16 , the upper end of the lower bending knife mounting seat 14 is fixedly connected with the lower bending knife 13 by bolts, and the second linear slide rail 5 is fixedly installed on one side of the support frame 6, and one end of the bending lower knife mounting seat 14 is slidably connected to the first On the two linear slide rails 5, the moving upper bearing pad 16 drives the rotor bearing 15 to move, and the rotor bearing 15 moves to drive the bending lower knife mounting seat 14 to move vertically up and down along the second linear slide rail 5. The lower bending knife mounting seat 14 drives the lower bending knife 13 to move;

The upper end of the support frame 6 is fixedly connected with a second fixing plate 7, a second cylinder 8 is installed on the second fixing plate 7, and one end of the piston rod of the second cylinder 8 is fixedly connected with a bending upper knife mounting seat 9, and the support frame 6 A third linear slide rail 17 is fixedly connected to one side of the bending upper knife mounting seat 9, one end of the bending upper knife mounting seat 9 is slidably connected to the third linear sliding rail 17, and the bending upper knife mounting seat 9 is slidably connected to one side of the support frame 6. , and one end of the upper bending knife mounting seat 9 is fixedly connected with the upper bending knife 10 by bolts, and one side of the upper bending knife 10 is provided with a tab pressing buffer block 12, and the second air cylinder 8 is used to drive the upper bending knife 10 and the tab compression buffer block 12 move downward vertically to compress the tab;

A third cylinder 18 is fixedly installed on the inner side of the support frame 6, and one end of the piston rod of the third cylinder 18 is fixedly connected with a bending top block 19, and the bending top block 19 is arranged on the upper bending knife 10 and the lower bending knife One side of 13 is used for bending the tabs.

The lower bending knife 13 and the upper bending knife 10 are vertically symmetrically arranged in two groups, and one side of each group of the upper bending knife 10 is fixedly installed with a linear bearing seat 11 through bolts, and the through hole of the linear bearing seat 11 is provided with a set. A spring plunger is connected to the tab pressing buffer block 12, which can prevent the tab from being lifted when the tab is bent.

Working principle: the first cylinder 4 drives the upper bearing pad 16 to move, the moving upper bearing pad 16 drives the rotor bearing 15 to move up and down, and drives the bending lower knife mounting seat 14 to move up with the rotor bearing 15, driving the bending The lower knife 13 moves to a limited position and then pushes the electrode tab of the battery core; the second cylinder 8 drives the upper bending knife mounting seat 9 to move and drives the upper bending knife 10 and the tab pressing buffer block 12 to move downward, and the tab pressing The tight buffer block 12 cooperates with the lower bending knife 13 to compress the pole lug to protect the pole lug from warping during the bending process. After pressing, the third air cylinder 18 drives the bending top block 19 to move forward for bending, and the whole process improves the bending efficiency.

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

Claims (7)

1. The utility model provides a soft packet of lithium cell utmost point ear bending device, including base (1), its characterized in that: the upper end of the base (1) is fixedly connected with a first fixing plate (2), the upper end of the first fixing plate (2) is fixedly provided with a first air cylinder (4), one end of a piston rod of the first air cylinder (4) is fixedly connected with an upper top bearing cushion block (16), the upper end of the base (1) is fixedly connected with a support frame (6), one side of the support frame (6) is connected with a lower bending cutter mounting seat (14) in a sliding mode, the bottom of the lower bending cutter mounting seat (14) is fixedly provided with a rotor bearing (15), one end of the rotor bearing (15) is in rolling fit with the upper top bearing cushion block (16), the upper end of the lower bending cutter mounting seat (14) is fixedly connected with a lower bending cutter (13) through a bolt, the upper end of the support frame (6) is fixedly provided with a second air cylinder (8), one end of a piston rod of the second air cylinder (8) is fixedly connected with an upper bending, the bending upper knife mounting seat (9) is connected to one side of the support frame (6) in a sliding mode, one end of the bending upper knife mounting seat (9) is fixedly connected with a bending upper knife (10) through a bolt, one side of the bending upper knife (10) is provided with a lug compression buffer block (12), a third air cylinder (18) is fixedly mounted on the inner side of the support frame (6), one end of a piston rod of the third air cylinder (18) is fixedly connected with a bending ejection block (19), and the bending ejection block (19) is arranged on one side of the bending upper knife (10) and one side of the bending lower knife (13).

2. The bending device for the soft package lithium battery tab according to claim 1, is characterized in that: one side of the first fixing plate (2) is fixedly provided with a first linear sliding rail (3), and the upper top bearing cushion block (16) is installed and slidably connected to the first linear sliding rail (3).

3. The bending device for the soft package lithium battery tab according to claim 1, is characterized in that: the upper top bearing cushion block (16) is arranged to be a trapezoidal plate, and the upper part of the upper top bearing cushion block (16) is provided with a bevel edge.

4. The bending device for the soft package lithium battery tab according to claim 1, is characterized in that: one side of the support frame (6) is fixedly provided with a second linear slide rail (5), and one end of the bending lower cutter mounting seat (14) is connected to the second linear slide rail (5) in a sliding manner.

5. The bending device for the soft package lithium battery tab according to claim 1, is characterized in that: the upper end fixedly connected with second fixed plate (7) of support frame (6), second cylinder (8) are installed on second fixed plate (7).

6. The bending device for the soft package lithium battery tab according to claim 1, is characterized in that: one side of the support frame (6) is fixedly connected with a third linear slide rail (17), and one end of the bending upper knife mounting seat (9) is connected to the third linear slide rail (17) in a sliding mode.

7. The bending device for the soft package lithium battery tab according to claim 1, is characterized in that: the bending lower knife (13) and the bending upper knife (10) are vertically and symmetrically arranged into two groups, each group of bending upper knife (10) is fixedly provided with a linear bearing seat (11) through a bolt, and a spring plunger is arranged in a through hole of the linear bearing seat (11) to connect a lug to compress the buffer block (12).

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