CN108746318B - Lithium battery cutting mold automatic lubrication device - Google Patents

Abstract

The invention discloses a full-automatic lubricating device for a lithium battery cutting die, comprising a punching knife, the punching knife is arranged in the knife edge, and the knife edge is set on one side of the lower knife seat, and the punching knife is fixed on the lower knife seat through a fixing hole , and the punching knife is set at a corner of the knife edge with a positioning bump, the positioning bump is fixed in the positioning groove, and the positioning groove is set on the side panel of the lower knife seat close to the punching knife, so A number of oil delivery pipes are arranged outside the lower knife seat, one end of the oil delivery pipe communicates with the knife edge through a flow diversion channel, and the end of the oil delivery pipe away from the knife edge is connected with a pneumatic throttle valve. The pneumatic throttle valve is connected to an oil storage tank through an oil delivery pipe, and the upper end of the oil storage tank is provided with a refueling hole and a compressed gas inlet, and a liquid level sensor is provided in the oil storage tank. The present invention is simple in structure and easy to use. It can improve the lubrication effect between the punching knife and the knife edge, clean the punching knife and increase the service life of the knife die.

Description

Lithium battery cutting mold automatic lubrication device

Technical field:

The invention belongs to the technical field of punching equipment for positive electrode sheets of lithium-ion batteries, and in particular relates to a full-automatic lubricating device for lithium-ion battery cutting molds.

Background technique:

New energy vehicles are becoming more and more popular, and the performance of the battery is related to the mileage of the new energy vehicle, especially the safety performance of the battery, which is particularly important. At present, the domestic mainstream power aluminum shell multi-tab battery, the tab production process mostly uses metal mold stamping forming , due to the characteristics of the positive electrode material, the tool is easy to stick to aluminum chips. After a long time of punching, the tabs are prone to burrs, and the waste is also easy to stick to the edge of the knife, resulting in poor lubrication, reduced punching accuracy, and secondary shearing. Sticking hair-like waste on the product tabs has brought great safety hazards to the finished battery cells made in the later stage. Therefore, there is an urgent need for a measure that can improve the lubrication effect of the knife edge, so as to solve the problem of aluminum sticking on the knife edge and improve The service life of the stamping die, so the present invention provides a lithium battery cutting die automatic lubrication device to achieve by adding an oil spray lubrication device to the die edge to ensure that the edge is wet, and at the same time, the waste on the edge is automatically taken away by the lubricating oil to ensure The knife edge does not stick to aluminum chips, which ensures punching accuracy and prolongs the service life of the mold.

Invention content:

The purpose of the present invention is to provide a full-automatic lubricating device for lithium battery cutting dies in order to solve the above problems, which solves the problem that existing lithium battery cutting dies are prone to sticking to aluminum scraps, and the tabs are prone to burrs after punching for a long time. The waste material is also easy to stick to the knife edge, resulting in poor lubrication effect, lower punching precision, forming secondary shearing, and sticking hair-like waste materials on the product tabs, which has brought great harm to the finished battery cells made in the later stage. The disadvantages of security risks.

In order to solve the above problems, the present invention provides a technical solution:

A fully automatic lubricating device for a lithium battery cutting die, comprising a punching knife and a lower knife seat, one side of the lower knife seat is provided with a knife edge matched with the punching knife, and the punching knife is fixed on the top of the lower knife seat through a fixing hole On the upper template, a positioning bump is provided at a corner of the punching knife facing the side of the knife edge, a positioning groove corresponding to the positioning bump is provided on the side wall of the knife edge, and a number of oil delivery pipes are provided on the outside of the lower knife seat , one end of the oil delivery pipe communicates with the knife edge through the diversion channel, and the side of the punching knife facing the knife edge is provided with a diversion channel corresponding to the diversion channel, and the diversion channel extends upward in an arc shape, and the upper end is provided with There are two oil injection ports, and the injection directions of the two oil injection ports are symmetrically distributed on both sides of the oil inlet direction of the diversion channel, and the oil injection port and the oil inlet port of the same diversion channel are located on the punching knife On the same side of the oil delivery pipe, the end of the oil delivery pipe away from the knife edge is connected to a pneumatic throttle valve, and the pneumatic throttle valve is connected to an oil storage tank through the oil delivery pipeline. A liquid level sensor is arranged in the oil storage tank.

Preferably, a one-way valve is provided in the oil filling hole.

As a preference, an oil receiving tank and a cylinder for driving the oil receiving tank to move forward and backward are provided under the lower tool seat, a filter screen is provided on the oil receiving tank, and a return pipe is provided in the oil receiving tank, and the return pipe and the oil storage tank connection.

Preferably, the compressed air inlet is connected to an external air compressor, and the pressure of the compressed air is controlled to be 3kg.

Preferably, the upper port of the oil filling hole is equipped with a hole cover.

Preferably, the shell of the oil storage tank is made of alloy steel.

Preferably, the fuel injection direction of the fuel injection port is arranged obliquely downward.

Beneficial effects of the present invention:

The automatic lubrication device of the lithium battery cutting die ensures the lubrication effect of the cutting edge by setting the oil inlet channel connected to the cutting edge on the lower knife seat and controlling the oil feeding situation during the punching process, so that the use and maintenance of the cutting die The frequency is significantly reduced, the phenomenon of sticking aluminum powder on the knife edge is basically solved, and the service life of the knife die is also significantly prolonged. At the same time, it also reduces the secondary shear band caused by the sticky waste on the knife edge; diversion channel, and after extending the diversion channel arc upwards, two oil injection ports are set, thereby increasing the range of lubricating oil injection and improving the lubricating effect; The service life of the knife die. The fuel injection volume of the oil circuit is controlled by the program setting time and throttle valve adjustment, and the oil storage tank is equipped with a liquid level sensor, which will automatically alarm when it is used to the lower line level, reminding to refuel.

Description of drawings:

For ease of illustration, the present invention is described in detail by the following specific implementations and accompanying drawings.

Fig. 1 is the assembly structure plan view of the embodiment of the present invention;

Fig. 2 is the side view of the assembled structure of the embodiment of the present invention;

Fig. 3 is a schematic cross-sectional view at B-B in Fig. 1;

FIG. 4 is an enlarged schematic view of point A in FIG. 1 .

In the figure: 1, punching knife; 2, lower knife seat; 3, knife edge; 4, oil delivery pipe; 5, pneumatic throttle valve; 6, oil storage tank; 7, oil filling hole; 8, compressed air inlet; 9, liquid level Sensor; 10, oil receiving groove; 11, fixing hole; 12, positioning bump; 13, positioning groove; 14, diversion channel; 15, diversion channel; 16, fuel injection port; Tube.

Detailed ways:

As shown in Figures 1-4, this embodiment adopts the following technical solutions:

A fully automatic lubricating device for a lithium battery cutting die, comprising a punching knife 1 and a lower knife seat 2, one side of the lower knife seat 2 is provided with a knife edge 3 that cooperates with the punching knife 1, and the punching knife 1 passes through a fixing hole 11 is fixed on the upper template above the lower knife seat 2, and a corner of the punching knife 1 facing the knife edge 3 is provided with a positioning protrusion 12, and the side wall of the knife edge 3 is provided with a corresponding positioning protrusion 12 Positioning groove 13, several oil delivery pipes 4 are provided on the outside of the lower knife seat 2, one end of the oil delivery pipe 4 communicates with the knife edge 3 through a diversion channel 14, and the side of the punching knife 1 facing the knife edge 3 is provided with a diversion channel 14 corresponds to the diversion channel 15, the diversion channel 15 extends upward in an arc shape, and the upper end is provided with two fuel injection ports 16, and the fuel injection directions of the two fuel injection ports 16 are symmetrically distributed in the distribution channel Both sides of the oil inlet direction, and the oil injection port 16 and the oil inlet port of the same diversion channel 15 are located on the same side of the punching knife 1, and the end of the oil delivery pipe 4 away from the knife edge 3 is connected with a pneumatic throttle valve 5, The pneumatic throttle valve 5 is connected to an oil storage tank 6 through an oil delivery pipe 4 , the upper end of the oil storage tank 6 is provided with a refueling hole 7 and a compressed air inlet 8 , and a liquid level sensor 9 is provided in the oil storage tank 6 . A one-way valve is provided in the oil filling hole 7 to prevent backflow of lubricating oil after pressurization in the oil storage tank 6 .

Specifically, an oil receiving tank 10 and a cylinder for driving the oil receiving tank to move forward and backward are provided below the lower tool seat 2, a filter screen 17 is provided on the oil receiving tank 10, and a return pipe 18 is arranged in the described oil receiving tank 10, so that The return pipe 18 is connected with the oil storage tank 6 . Specifically, the compressed air inlet 8 communicates with an external air compressor, and the pressure of the compressed air is controlled to be 3 kg. Its pressure makes the outflow rate of cleaning oil stable and does not appear excessive, which is obtained from practical data.

Specifically, a hole cover is installed on the upper port of the filling hole 7 to prevent dust from falling into the filling hole 7 .

Specifically, the shell of the oil storage tank 6 is made of alloy steel to ensure that it will not be easily deformed in an internal high-pressure environment, and to prevent corrosion of the battery waste.

Specifically, the oil injection direction of the oil injection port 16 is set obliquely downward, so as to improve the removal efficiency of the sundries of the punched products.

The working principle of the present invention is as follows:

When the mold needs to be lubricated, the cylinder drives the oil receiving groove 10 to move to the bottom of the lower tool seat 2. After the lubricating oil is pressurized, it is transported to the diversion channel 14 through the oil delivery pipe 4, and then sprayed into the diversion channel by the diversion channel 14 Road 15, and then sprayed out through the two oil injection ports 16 of the diversion channel 15, so as to realize the lubrication of the knife edge 3 and the punching knife in the knife edge 3, and at the same time clean the sundries in the knife edge 3, and enter from the knife edge 3 After the lubricating oil flowing down is filtered by the filter screen 17, it is recycled by the oil receiving tank 10. After the lubrication is completed, the oil receiving tank 10 is driven by the cylinder to move, and the punching of the material is carried out again. After the design uses the oil injection lubrication device, the maintenance frequency of the knife die is significantly reduced, the phenomenon of aluminum powder sticking to the knife edge is basically solved, the service life of the knife die is also significantly prolonged, and it also reduces the secondary shear caused by the knife edge sticking to waste. Belt, the present invention is simple in structure, easy to use, can clean punching knife, increases the service life of knife die.

Above shows and described basic principle of the present invention and main feature and the advantage of the present invention, those skilled in the art should understand that, the present invention is not limited by above-mentioned embodiment, and what described in above-mentioned embodiment and description just illustrates the present invention Principle, under the premise of not departing from the spirit and scope of the present invention, the present invention also has various changes and improvements, and these changes and improvements all fall within the claimed scope of the present invention, and the claimed scope of the present invention is defined by the appended claims Requirements and their equivalents are defined.

Claims (4)

1. A fully automatic lubricating device for lithium battery cutting dies, including a punching knife (1) and a lower knife seat (2), characterized in that: one side of the lower knife seat (2) is provided with a punching knife (1) ), the punching knife (1) is fixed on the upper template above the lower knife seat (2) through the fixing hole (11), and the punching knife (1) faces the side of the knife edge (3) A positioning bump (12) is provided at one corner, a positioning groove (13) corresponding to the positioning bump (12) is provided on the side wall of the knife edge (3), and a number of An oil delivery pipe (4), one end of the oil delivery pipe (4) communicates with the knife edge (3) through a diversion channel (14), and the side of the punching knife (1) facing the knife edge (3) is provided with a diversion channel (14 ) corresponding to the diversion channel (15), the diversion channel (15) arc-shaped upward extension, and the upper end is provided with two oil injection ports (16), the injection of the two oil injection ports (16) The oil direction is symmetrically distributed on both sides of the oil inlet direction of the diversion channel, and the oil injection port (16) and the oil inlet port of the same diversion channel (15) are located on the same side of the punching knife (1). The oil injection direction of the oil port (16) is set obliquely downward, and the end of the oil delivery pipe (4) away from the knife edge (3) is connected with a pneumatic throttle valve (5), and the pneumatic throttle valve (5) passes through the oil delivery pipe (4) ) is connected with an oil storage tank (6), the upper end of the oil storage tank (6) is provided with a refueling hole (7) and a compressed air inlet (8), and the oil storage tank (6) is equipped with a liquid level sensor ( 9), the oil filling hole (7) is provided with a one-way valve, the bottom of the lower knife seat (2) is provided with an oil receiving groove (10) and a cylinder that drives the oil receiving groove to move forward and backward, and the oil receiving groove (10) A filter screen (17) is arranged on it, and a return pipe (18) is arranged in the oil receiving tank (10), and the return pipe (18) is connected with the oil storage tank (6). 2. The automatic lubrication device for lithium battery cutting dies according to claim 1, characterized in that: the compressed air inlet (8) is connected to an external air compressor, and the pressure of the compressed air is controlled to 3kg. 3. The automatic lubrication device for lithium battery cutting dies according to claim 1, characterized in that: the upper port of the oil filling hole (7) is equipped with a hole cover. 4. The automatic lubricating device for lithium battery cutting dies according to claim 1, characterized in that: the shell of the oil storage tank (6) is made of alloy steel.

Images