CN103008480A - High-precision blanking die structure of steel battery shell - Google Patents

Abstract

The invention discloses a high-precision blanking mold structure for battery steel shells, which is applied in the production technology of thin-walled battery steel shells. It includes an upper mold frame plate and a punch worktable. A blanking upper die and a stretching upper die fixing plate, a blanking upper die is installed on the blanking upper die, a plurality of stretching punches arranged in parallel at intervals are arranged on the drawing upper die fixing plate, the punching machine The blanking lower template and the drawing die are provided on the working table corresponding to the blanking upper template and the stretching punch. A guide mechanism composed of formwork guide sleeves and formwork guide columns is installed between them, and an independent positioning guide assembly is arranged between the blanking upper and lower formworks. The above mold structure not only improves the matching precision of the upper and lower molds and prolongs the life of the mold, but also facilitates disassembly and assembly, shortens maintenance time and improves production efficiency.

Description

A high-precision blanking mold structure for battery steel shells

technical field

The invention relates to a production mold for a thin-walled battery case, in particular to a high-precision blanking mold structure for a battery steel case.

Background technique

At present, thin-walled battery steel cases are generally punched by progressive dies. Please refer to Fig. 1, Fig. 1 is a schematic diagram of a traditional battery steel shell blanking mold structure, which includes an upper mold frame plate 10 and a punching table 11 correspondingly arranged below the upper mold frame plate 10, the upper mold A blanking upper die 12 and a stretching upper die fixing plate 13 are installed below the frame plate 10, a blanking upper die is installed on the blanking upper die 12, and a plurality of stretching upper die fixing plates 13 are arranged in sequence. The drawing punches 14 that are arranged at intervals in parallel, the blanking upper template 12 corresponding to the punching punch 14 on the punch table 11 are provided with a blanking lower template 15 and a drawing die 16, and the blanking lower template Blanking lower mold is installed on 15, and the guide mechanism that is made up of formwork guide sleeve 17 and formwork guide post 18 is installed between described upper formwork plate 10 and punching machine table plate 11. The characteristic of this mold structure is that the entire 7-10 upper molds: including the blanking upper mold and the drawing punch 14 are all integrated on one upper mold frame plate, while the lower mold part is independently fastened on the workbench in a single lane. board. The whole set of molds usually only uses one set (two pairs) of mold base guide sleeves 17 and mold base guide pillars 18 to ensure the position of the upper and lower molds, that is, between the entire upper mold base plate 10 and the lower punch table 11, a set of Guide post guide sleeve. The mold with this structure is also feasible in theory and use effect, and has been popular in the industry for many years.

But there are also certain defects. Because this kind of die structure is taken as the stretching part, all the stretching punches 14 are all installed on the fixed plate 13 of the whole stretching upper die, and the stretching punches 14 will not be displaced from each other, but the blanking Die is fastened on the upper mold frame plate 10 separately, in operation, it is unavoidable not to produce displacement with upper mold frame plate 10. The entire upper mold frame plate 10 and the drawing upper mold fixing plate 13 rely on guide pillars and guide sleeves to ensure the cooperation with the lower mold, but not necessarily guarantee the upper and lower position of the blanking mold (and the blanking lower mold is also fastened independently on the workbench). In this way, sometimes the deviation is large, and the blanking die will appear chipping. In addition, compared with the drawing die, the blanking die requires much more maintenance (because the cutting edge needs to be sharpened frequently). Since there is no positioning guarantee, the position of the upper and lower dies must be adjusted many times every time it is disassembled, so It is more troublesome.

Contents of the invention

The purpose of the present invention is to provide a high-precision blanking mold structure for battery steel shells, which has the characteristics of high matching precision between the upper and lower molds, convenient disassembly and assembly, and long service life of the mold, so as to solve the problem of high-precision blanking of battery steel shells in the prior art. There are problems with the mold structure.

The purpose of the present invention is to realize through the following technical solutions:

A high-precision blanking mold structure for battery steel shells, which includes an upper mold frame plate and a punching workbench correspondingly arranged below the upper mold frame plate, and a blanking upper template and a stretching plate are installed below the upper mold frame plate. The upper die fixing plate, the blanking upper die is installed on the blanking upper die, the drawing upper die fixing plate is provided with a plurality of stretching punches arranged in parallel at intervals, and the corresponding blanking on the punching table is The upper template and the stretching punch are provided with a blanking lower template and a drawing die, the blanking lower mold is installed on the blanking lower template, and the mold frame guide A guide mechanism composed of a sleeve and a formwork guide post, wherein an independent positioning guide assembly is arranged between the blanking upper and lower templates.

In particular, the positioning guide assembly includes a blanking die guide sleeve installed on the blanking upper formwork and a blanking die guide post installed on the blanking lower formwork.

In particular, the blanking die guide sleeve and the blanking die guide post are provided in two sets.

In particular, the guide pillars and sleeves of the blanking die are arranged vertically and horizontally with the guide pillars and sleeves of the formwork.

The beneficial effect of the present invention is that, compared with the prior art, the structure of the high-precision blanking mold for the battery steel shell is equipped with a set (two pairs) of guide posts and guide sleeves on the upper and lower templates of the blanking mold, so that it has Independent positioning system. In addition, the blanking die guide post guide sleeve and the mold base guide post guide sleeve are now arranged in vertical and horizontal directions, which further improves the matching accuracy of the upper and lower dies. In this way, it not only avoids the phenomenon of mold chipping, but also prolongs the life of the mold; and when disassembling the mold, as long as it is installed in place, it is not necessary to adjust the position of the upper and lower molds many times, which simplifies the installation procedure, shortens the maintenance time, and improves the production. efficiency.

Description of drawings

Fig. 1 is the schematic diagram of traditional battery steel case blanking mold structure;

Fig. 2 is a schematic structural view of the high-precision blanking die structure for a battery steel case provided in Embodiment 1 of the present invention.

Detailed ways

The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

Please refer to FIG. 2 . FIG. 2 is a schematic structural diagram of a high-precision blanking die structure for a battery steel case provided in Embodiment 1 of the present invention.

In this embodiment, a high-precision blanking mold structure for battery steel shells includes an upper mold frame plate 20 and a punching table 21 correspondingly arranged below the upper mold frame plate 20, and the lower part of the upper mold frame plate 20 is installed There are a blanking upper die 22 and a stretching upper die fixing plate 23, the blanking upper die 22 is installed with a blanking upper die, and the drawing upper die fixing plate 23 is sequentially provided with a plurality of stretching dies arranged in parallel at intervals. Punch 24, corresponding blanking upper formwork 22 on described punching table 21, drawing punch 24 is provided with blanking lower formwork 25 and drawing die 26, and described blanking lower formwork 25 is installed blanking lower formwork. mold, a guiding mechanism composed of a mold base guide sleeve 27 and a mold base guide post 28 is installed between the upper mold base plate 20 and the punch table 21, and a blanking mold guide sleeve 29 is installed on the blanking upper mold plate 22 , cooperate with the blanking die guide sleeve 29 to install the blanking die guide post 30 on the blanking lower template 25, the blanking die guide post 30, the blanking die guide sleeve 29 and the die base guide post 28, the die base guide sleeve 27 Arranged vertically and horizontally.

The high-precision blanking mold structure for the battery steel case not only improves the matching accuracy of the upper and lower molds, avoids the phenomenon of mold chipping, and prolongs the life of the mold; moreover, when disassembling the mold, it only needs to be installed in place, and there is no need to adjust the upper and lower molds multiple times. The mold position simplifies the installation procedure, shortens the maintenance time and improves the production efficiency.

The above embodiments have only set forth the basic principles and characteristics of the present invention, the present invention is not limited by the above-mentioned examples, and on the premise of not departing from the spirit and scope of the present invention, the present invention also has various changes and changes, and these changes and changes all fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (4)

1. battery steel shell high accuracy blanking die structure, it comprises patrix frame plate and the corresponding work bench of punch press plate that is arranged at patrix frame plate below, the below of described patrix frame plate is equipped with blanking upper die plate and stretching upper mould fixed plate, on the described blanking upper die plate blanking upper die is installed, be provided with the draw punch that a plurality of parallel interval are arranged on the described stretching upper mould fixed plate, corresponding blanking upper die plate on the described work bench of punch press plate, draw punch is provided with blanking lower bolster and stretching die, the blanking counterdie is installed on the described blanking lower bolster, the guiding mechanism that is comprised of mould bases guide pin bushing and mould bases guide pillar is installed between described patrix frame plate and the work bench of punch press plate, is it is characterized in that: on the described blanking, be provided with independently positioning and guiding assembly between the lower bolster.

2. battery steel shell high accuracy blanking die structure according to claim 1; It is characterized in that: described positioning and guiding assembly comprises the blanking die guide pin bushing that is installed on the blanking upper die plate and the blanking die guide pillar that is installed on the blanking lower bolster.

3. battery steel shell high accuracy blanking die structure according to claim 2; It is characterized in that: described blanking die guide pin bushing and blanking die guide pillar are set to two pairs.

4. battery steel shell high accuracy blanking die structure according to claim 2; It is characterized in that: be in length and breadth both direction arrangement between described blanking die guide pillar, cover and mould bases guide pillar, the cover.

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