KR100210859B1 - Electrode terminal manufactruing method of battery - Google Patents

Abstract

According to the present invention, by precisely processing the electrode terminals provided at both ends of the battery by press and pre-processing the electrode terminals by trimming the unnecessary portions by trimming the electrode terminals, the electrode terminals are processed to precisely weigh the dynamics of the preformed workpiece. It is possible to process the electrode terminal without using it, and to minimize the production cost of the electrode terminal by reducing the operating energy by miniaturization of the device, and to improve the workability and to easily process the electrode terminal which is not symmetrical left and right. A method of manufacturing an electrode terminal of a storage battery, wherein a punch for pressing and molding a preformed workpiece is fixed to a lower portion of a punch support fixed to an upper insert die, and is disposed on an upper surface of a lower insert die facing the upper insert die. Electric storage with an ejector mounted by the operating slide plate and the knockout of the machine itself In the manufacturing method of the electrode terminal, and the upper mold insert die stage to inject the workpiece in a state located at the top dead center in the forming section of the lower mold insert die; Setting the workpiece to be formed on which the slide plate correspondingly disposed on the upper surface of the lower insert die and operated by a cylinder driven by air pressure and the punch fixed to the punch support by lowering the upper insert die presses the workpiece. Fixing; Punch forming the workpiece according to the lowering of the upper die insert die which is continued in the crimp fixed state; Finishing forming the electrode terminal and raising the upper die insert; Driving the cylinder to relax the slide plate from the molded electrode terminal; Taking out the molded electrode terminal with an ejector; It is composed of a step of shaping the unnecessary portion of the extracted electrode terminal by a trimming operation.

Description

Manufacturing method of electrode terminal of storage battery

The present invention relates to an electrode terminal provided at both ends of the battery to input and output electricity, in particular by forming an unnecessary portion by trimming the electrode terminal pre-processed by the press to process the electrode terminal, the weight of the preformed workpiece Regardless of the precision, it is possible to process the electrode terminal, and the miniaturization of the device can reduce the operating energy, thereby minimizing the production cost of the active terminal, and improve the workability, as well as the non-symmetrical electrode terminals. A method for manufacturing an electrode terminal of a storage battery that can be processed.

BACKGROUND OF THE INVENTION [0002] Storage batteries generally used are largely divided into automotive and industrial applications, and a method of processing electrode terminals for inputting and outputting electricity among components constituting the batteries is a conventional electrode terminal processing method. It is made by a casting method, and in detail, an electrode terminal has been produced by pouring a heat-melted workpiece into a forming mold having a predetermined size and shape.

However, in the casting method as described above, the first: there was a difficulty in obtaining an electrode terminal having a dense structure because air is mixed in the process of pouring the heat-melted workpiece into the mold to generate pores. The generation of pores between tissues causes the electrode terminal to decrease in strength, causing a problem of being easily damaged by a small external force. Thirdly, the pores generated between tissues can be a direct cause of dropping electrical conductivity.

On the other hand, in the process of pouring the workpiece to the molding die, the workpiece is scattered to the outside, there is a risk that the worker is exposed to safety accidents, there is a problem that causes physical harm due to lead poisoning.

The object of the present invention described above is a slide in which a punch for press-molding a preformed workpiece is fixed to a lower portion of a punch support fixed to an upper insert die, and is disposed on an upper surface of a lower insert die facing the upper insert die and pneumatically operated. A method of manufacturing an electrode terminal of a storage battery provided with an ejector which is lifted by the operation of a knockout of a plate and a machine itself, the method comprising: injecting a workpiece into a molding part of a lower insert die while the upper insert die is located at a top dead center; Setting a workpiece to be shaped by which a slide plate correspondingly disposed on the upper surface of the lower insert die and operated by a cylinder driven by air pressure; The upper die insert is lowered and the punch fixed to the punch support presses and fixes the workpiece; Forming a workpiece by a punch according to the lowering of the upper die insert die which is continued in the crimp fixed state; Finishing forming the electrode terminal and raising the upper die insert; Driving the cylinder to relax the slide plate from the molded electrode terminal; Taking out the molded electrode terminal with an ejector; It is achieved by providing a method for manufacturing an electrode terminal of a storage battery, characterized in that it comprises a step of shaping the unnecessary portion of the extracted electrode terminal by a trimming operation.

1 is a cross-sectional view illustrating an electrode terminal manufacturing apparatus of the battery according to the present invention, the left portion is when the upper insert die is at the top dead center, the right part is when the upper insert die is at the bottom dead center.

2 (a) to 2 (f) are cross-sectional views illustrating an electrode terminal manufacturing process of a storage battery according to the present invention.

(a) is an illustration which shows the state which put the to-be-processed object in the shaping | molding part of a lower die insert die.

(b) is an exemplary view showing a state in which a workpiece placed in a molding part is set.

(c) is an illustration showing a state where the upper die insert die is lowered and the workpiece is pressed with a punch;

(d) is an exemplary view showing a state in which the upper die insert die continues to form the electrode terminal.

(e) is an illustration showing a state where the upper die insert is raised and the slide plate is separated from the formed electrode terminal.

(f) is an illustration of the state in which the electrode terminal was taken out from the shaping | molding part of a lower die | dye insert die.

Figure 3 (a) (b) (c) is a configuration diagram of the electrode terminal of the storage battery produced by the apparatus of the present invention.

4A, 4B, and 4C are electrode terminal configuration diagrams of a storage battery shaped by a trimming operation.

* Explanation of symbols for main parts of the drawings

12: Punch 20: Lower Insert Die

21: slide plate 21a: groove

22: ejector 23: molding part

24: cylinder 25: guide passage

30: electrode terminal 31: workpiece

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a cross-sectional view illustrating an electrode terminal manufacturing apparatus of a storage battery according to the present invention, the left portion is when the upper insert die is at the top dead center, the right portion is when the upper insert die is at the bottom dead center, and the second Figures (a) to (f) are sectional views illustrating the electrode terminal manufacturing process of the storage battery according to the present invention, (a) is an exemplary view showing a state in which the workpiece is inserted into the molding portion of the lower die insert, (b) Is an exemplary view showing a state in which a workpiece inserted into the molding part is set, (c) is an exemplary view showing a state in which the upper die insert dies, and the workpiece is pressed with a punch, and (d) the upper die insert die is continuously lowered. (E) is an illustration showing a state in which the electrode terminal is molded, (e) is an illustration showing a state in which the upper insert die is raised and the slide plate is separated from the molded electrode terminal, and (f) is an electrode terminal from the molding portion of the lower insert die.Fig. 3 (a) (b) (c) is an electrode terminal configuration diagram of a storage battery manufactured by the apparatus of the present invention, and Fig. 4 (a) (b) (c) is It is a block diagram of the electrode terminal of the storage battery shaped by the trimming operation.

Referring to the battery electrode terminal manufacturing method of the present invention step by step.

In the manufacturing method of the electrode terminal of the battery, the punch 12 for press molding the workpiece preformed to a predetermined weight is fixed to the lower portion of the punch support 11 fixed to the upper insert die 10, the upper insert die ( In the manufacturing method of the electrode terminal of a storage battery provided with an ejector 22 which is disposed on the upper surface of the lower insert die 20 facing the 10) and the pneumatically operated slide plate 21 and the knockout of the machine itself are installed. And inserting the workpiece 31 into the molding part 23 of the lower mold insert die 20 while the upper mold insert die 10 is positioned at the top dead center. Setting the workpiece 31 on which the slide plate 21 operated by the cylinder 24 correspondingly disposed on the upper surface of the lower insert die 20 is to be molded; A step in which the upper insert die 10 is lowered so that the punch 12 fixed to the punch support 11 press-fixes the workpiece 31; A punch (12) forming the workpiece (31) in accordance with the lowering of the upper die insert (10) continued in the crimp fixed state; Finishing forming the electrode terminal and raising the upper die insert 10; Driving the cylinder 24 to relax the slide plate 21 from the shaped electrode terminal 30; Taking out the molded electrode terminal (30) by using an ejector (22); It comprises a step of shaping the unnecessary portion of the electrode terminal taken out by the trimming operation.

The manufacturing method of the battery electrode terminal of the present invention will be described as follows.

First, the workpiece 31 preformed in the molding part 23 of the lower die insert 20 is inserted and fixed as shown in FIG.

At this time, the upper die insert 10 is located in the top dead center as shown in the left part of FIG.

In the above state, air is supplied from the pneumatic pressure supply device to the cylinders 24 provided on both sides of the lower die insert die 20 to drive the slide plate 21 installed on the piston rod as shown in FIG. The workpiece 31 inserted into the part 23 is set in the molding part.

The workpiece 31 is set as described above, and the workpiece 31 is driven to the distal end portion of the punch 12 fixed to the punch fixing part 11 of the upper insert die 10 by driving the upper insert die 10. Will be compressed.

Subsequent lowering of the upper die insert 10 causes the punch 12 to punch the workpiece 31, at which time the punch 12 drills the central portion of the workpiece 31 to allow the tissue of the workpiece 31 to be drilled. As the tissues of the workpiece 31 are filled between the plurality of grooves 21a formed as the inner wall of the slide plate 21 while being expanded to the outside, an electrode terminal having a desired shape is formed.

At this time, the upper die insert 10 is located at the bottom dead center as in the right part of FIG. 2 or in the state as shown in FIG.

Meanwhile, when the upper die insert 10 forms the electrode terminal 30, the pressing force of the upper die insert 10 is greater than the air pressure supplied to the cylinder 24 of the slide plate 12. 12) is opened.

When the forming of the electrode terminal 30 is completed as described above, the upper die insert die 10 is raised to separate the punch 12 from the formed electrode terminal 30.

When the punch 12 is separated from the electrode terminal 30 due to the rise of the upper insert die 10, the slide plate 21 disposed on the upper surface of the molding part of the lower insert die 20 is driven by the cylinder 24. The electrode terminal 30 is relaxed as shown in FIG. 2E.

When the slide plate 21 is relaxed, the ejector 22 is installed to be positioned in the guide tube 25 of the bottom surface of the molding unit 23 of the lower insert die 20 and is lifted by the knockout operation of the machine itself. The electrode terminal is taken out by this.

The ejector 22 is operated by the knockout of the machine itself when the upper die insert 10 rises to the top dead center and reaches a predetermined position after the molding of the electrode terminal 30 is completed.

The electrode terminal manufactured by the above manufacturing process is manufactured as shown in FIG. 3 (a) (b) (c), and the electrode terminal 30 manufactured as described above is fabricated by a dreaming operation of FIG. As shown in (c), the shape is variously shaped into a shape suitable for the type of storage battery.

As described above, the battery electrode terminal manufacturing method according to the present invention by trimming the unnecessary portion through the trimming operation of the electrode terminal processed by the press by the open forging processing method, the weight precision of the workpiece to be preformed is inferior Even if the electrode terminal can be processed, the operating energy of the press, which is a processing device, can be reduced, so that the production cost of the electrode terminal can be minimized. It shows the effect that the electrode terminals can be easily processed.

By trimming the unnecessary parts by trimming the electrode terminal processed by the press by the open forging process, firstly, the electrode terminal can be processed even if the weight precision of the workpiece to be preformed decreases, and second: the press which is a processing device Operational energy can be reduced, minimizing the production cost of the active terminal. Third: miniaturization of the device, as well as improved workability. Fourth: non-symmetrical electrode terminals can be easily machined. It is an object of the present invention to provide a method for manufacturing an electrode terminal of a storage battery.

Claims (2)

The punch 12 for press-molding the preformed workpiece is fixed to the lower portion of the punch support 11 fixed to the upper insert die 10, and the lower insert die 20 facing the upper insert die 10 is formed. In the manufacturing method of the electrode terminal of the battery provided with the slide plate 21 is arranged on the upper surface and the ejector 22 is raised by the operation of the knockout of the press body, the upper die insert 10 is located at the top dead center Injecting the workpiece 31 in the state into the molding portion 23 of the lower die insert die 20; Setting the workpiece 31 to be processed by which the slide plate 21 which is correspondingly arranged on the upper surface of the lower insert die 20 and operated by the cylinder 24 driven by air pressure; A step in which the upper insert die 10 is lowered so that the punch 12 fixed to the punch support 11 press-fixes the workpiece 31; A punch (12) forming the workpiece (31) in accordance with the lowering of the upper die insert (10) continued in the crimp fixed state; Finishing forming the electrode terminal and raising the upper die insert 10; Driving the cylinder 24 to relax the slide plate 21 from the shaped electrode terminal 30; Taking out the molded electrode terminal (30) with an ejector (22); Method for manufacturing an electrode terminal of a storage battery, characterized in that the step of shaping the unnecessary portion of the extracted electrode terminal 30 by the trimming operation. The method of claim 1, wherein the electrode terminal manufacturing method of the storage battery, characterized in that greater than the air pressure supplied to the pressing cylinder (24) of the upper insert die (10).