CN217617264U - Extrusion forming die and device for power battery aluminum shell rough blank - Google Patents

Abstract

A power battery aluminum shell rough blank extrusion forming die and a forming device are provided, wherein the power battery aluminum shell rough blank extrusion forming die comprises an upper stamping die, a lower forming die and a stripper plate; the upper stamping die comprises an upper die base, and an extrusion punch, an upper die outer guide sleeve and an upper die inner guide pillar which are sequentially arranged on the upper die base from inside to outside, wherein the extrusion punch is arranged in the middle of the upper die base; the lower forming die comprises a lower die base, an alloy forming female die and an outer guide pillar, wherein the alloy forming female die and the outer guide pillar are sequentially arranged on the lower die base from inside to outside; the stripper plate is arranged above the gold forming female die, and is provided with a through hole for the extrusion punch to pass through; the extrusion punch, the alloy forming female die and the through hole are coaxially arranged; the mould omits a plurality of stamping and stretching links of the elliptical stretching of the original production line of the aluminum shell stretching mould, and can reduce the investment of processing equipment in the processing and production of the aluminum shell; meanwhile, the number of intermediate links of die stamping is reduced, and the yield and the production efficiency can be improved.

Description

Power battery aluminum shell rough blank extrusion forming die and forming device

Technical Field

The invention relates to the technical field of power battery aluminum shell forming processing, in particular to an extrusion forming die for a power battery aluminum shell rough blank.

Background

At present, in the stamping production process of the power battery aluminum shell, the manufacturing of the power battery aluminum shell cannot avoid die process equipment, and the arrangement of a drawing die is a main production and processing way. The yield of the whole power battery aluminum shell stamping line is related to the design of a die tool and the excellent selection of equipment. At present, the existing aluminum shell stamping and stretching production lines in the industry almost tend to be the same, the stretching processes are more, the die processing requirement is high, the die manufacturing period and the die debugging time are relatively long (the existing stamping and stretching production of the power battery aluminum shell is generally more than 7 processes), and the output efficiency is basically set.

Disclosure of Invention

The invention aims to overcome the defects and provides a stress dispersion type extrusion forming die for a power battery aluminum shell rough blank.

The invention solves the technical problem by adopting the scheme that the power battery aluminum shell rough blank extrusion forming die comprises an upper stamping die, a lower forming die and a stripper plate;

the stamping upper die comprises an upper die base, and an extrusion punch, an upper die outer guide sleeve and an upper die inner guide pillar which are sequentially arranged on the upper die base from inside to outside, wherein the extrusion punch is arranged in the middle of the upper die base;

the lower forming die comprises a lower die base, and an alloy forming female die and an outer guide post which are sequentially arranged on the lower die base from inside to outside, wherein the lower die base is provided with inner guide holes which are in one-to-one correspondence with and coaxially matched with the inner guide posts of the upper die;

the stripper plate is arranged above the alloy forming female die, and a through hole for the extrusion punch to pass through is formed in the stripper plate;

the extrusion punch, the alloy forming female die and the through hole are arranged coaxially.

Furthermore, four corners of the outer end of the upper die base are provided with upper die outer limiting columns, and four corners of the outer end of the lower die base are provided with lower die outer limiting columns correspondingly matched with the upper die outer limiting columns.

The utility model provides a thick embryo extrusion device of power battery aluminum hull, includes the frame, installs the thick embryo extrusion mould of power battery aluminum hull on the frame, shaping lower mould fixed mounting is on the mesa of frame, mould installation is gone up in the punching press at the lifting block lower surface, installs the hydraulic pressure jacking jar that is used for driving the lifting block to reciprocate in the frame.

Furthermore, four bights of elevator wear to be equipped with rather than sliding fit's the upright post of leading, lead upright post upper end and connect the fixed station, and the hydraulic pressure jacking jar is vertical to be installed on the fixed station, and the piston rod end of hydraulic pressure jacking jar is connected with the elevator.

Furthermore, the stripper plate is arranged on the table top through a support column.

Compared with the prior art, the invention has the following beneficial effects: the structure is simple, the design is reasonable, a plurality of stamping and stretching links of elliptical stretching of the original aluminum shell stretching die production line are omitted, and the investment of processing equipment in the aluminum shell processing production can be reduced; meanwhile, the intermediate links of die stamping are reduced, and the yield and the production efficiency can be improved.

Drawings

The invention is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic structural diagram of a power battery aluminum shell rough blank extrusion molding device.

Fig. 2 is a schematic view of extrusion molding of an aluminum can product.

In the figure: 10-hydraulic jacking cylinder; 11-upper fixed table; 12-a guide upright post; 13-a lifting block; 14-a slider mounting plate; 15-fixing a backing plate; 16-an upper die holder; 17-upper die outer limit column; 18-an upper die outer guide sleeve; 19-upper die inner guide post; 20-extruding a punch; 21-outer guide posts; 22-stripper plate; 23-a support column; 24-aluminum shell rough blank; 25-lower die external limiting column; 26-a lower die holder; 27-lower die backing plate; 28-raw material aluminum block; 29-lower die table surface mounting plate; and 30-extruding the table top.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

Example 1, as shown in fig. 1-2:

the embodiment provides a power battery aluminum shell rough blank extrusion forming die, which comprises an upper stamping die, a lower forming die and a discharging plate 22;

the upper stamping die comprises an upper die base 16, and an extrusion punch 20, an upper die outer guide sleeve 18 and an upper die inner guide pillar 19 which are sequentially arranged on the upper die base from inside to outside, wherein the extrusion punch is arranged in the middle of the upper die base;

the lower forming die comprises a lower die base 26, an alloy forming female die and outer guide posts 21, wherein the alloy forming female die and the outer guide posts are sequentially arranged on the lower die base from inside to outside;

the discharging plate is arranged above the gold forming female die, and a through hole for the extrusion punch to pass through is formed in the discharging plate;

the extrusion punch, the alloy forming female die and the through hole are coaxially arranged;

the die effectively eliminates a plurality of stamping and stretching links (3 or more than 3 oval forming processes) of the oval stretching of the original aluminum shell stretching die production line, so that the investment on forming equipment can be reduced, the middle links of die stamping are reduced, the yield and the production efficiency can be effectively improved, the power battery aluminum shell stamping production line is more stable, the service life of the die is longer, and the die maintenance times and the cost are correspondingly reduced;

when the die is used, a square aluminum shell rough blank can be directly obtained after extrusion forming, so that the production is simpler and more efficient.

In this embodiment, four corners of the outer end of the upper die base are provided with upper die outer limiting posts 17, and four corners of the outer end of the lower die base are provided with lower die outer limiting posts 25 correspondingly matched with the upper die outer limiting posts.

Example 2, as shown in fig. 1-2:

this embodiment provides the thick embryo extrusion device of power battery aluminum hull of the mould that application embodiment 1 provided, including the frame, install the thick embryo extrusion mould of power battery aluminum hull on the frame, shaping lower mould fixed mounting is on the mesa 30 of frame, mould installation is on the punching press at 13 lower surfaces of elevator, installs the hydraulic pressure jacking jar 10 that is used for driving the elevator to reciprocate in the frame.

In this embodiment, four bights of elevator wear to be equipped with rather than sliding fit lead upright 12, lead upright upper end and connect fixed station 11, and the hydraulic pressure jacking jar is vertical to be installed on the fixed station, and the piston rod end of hydraulic pressure jacking jar is connected with the elevator.

In this embodiment, the stripper plate is mounted on a table top via support posts 23.

The molding device comprises the following steps:

after the upper stamping die and the lower forming die are installed and fixed on a rack, a lifting block is driven by a hydraulic jacking cylinder to drive the upper stamping die to move upwards to a set upper jacking point;

feeding the processed raw material aluminum block 28 (the processing mode is that a lubricant is added on the surface of the manufactured aluminum block before cold extrusion, the lubricant is zinc stearate, and light zinc stearate powder is stirred and smeared on the aluminum block by adopting stirring equipment) into an alloy forming female die in a manual or mechanical feeding mode;

the hydraulic jacking cylinder drives the lifting block to drive the upper stamping die to move downwards quickly, the outer guide pillar is firstly inserted into the outer guide sleeve of the upper die to primarily guide the upper die and the lower die, the upper die continues to move downwards, and the inner guide pillar of the upper die is then inserted into the inner guide hole of the lower die to secondarily guide the die so as to ensure that the extrusion clearance of the four sides of the extrusion punch and the alloy forming female die is controlled;

then the hydraulic jacking cylinder drives the lifting block to continuously and slowly move downwards to set the height, so that the extrusion punch extrudes a raw material aluminum block, the extruded raw material aluminum block flows upwards along with the shape of the punch in a fit clearance between the alloy forming female die and the extrusion punch to form an aluminum shell rough blank 24 with uniform wall thickness and height (the height of the aluminum shell rough blank and the bottom thickness of the aluminum shell rough blank are adjusted by adjusting the depth of the upper die pressed into the lower die, and data are locked after the adjustment is finished, so that continuous and smooth production can be carried out);

after the coarse blank of aluminum hull shaping, go up the mould and shift up through hydraulic jacking jar drive elevator area punching press, the coarse blank of aluminum hull can be attached to the surface of extrusion drift and follow the extrusion drift upward movement together because of the atress principle, when following the process through the stripper, is blockked by the stripper and makes the coarse blank of aluminum hull and extrusion drift separation, and the coarse blank of aluminum hull of separation is stretched into the lower mould by receiving device and is caught the back output in.

If this patent discloses or refers to parts or structures that are fixedly connected to each other, the fixedly connected parts are understood to be, unless otherwise stated: a detachable fixed connection (for example using a bolt or screw connection) can also be understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In the description of this patent, it is to be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the patent, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

The above-mentioned preferred embodiments, further illustrating the objects, technical solutions and advantages of the present invention, should be understood that the above-mentioned are only preferred embodiments of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides a power battery aluminum hull blank extrusion forming die which characterized in that: comprises an upper stamping die, a lower forming die and a stripper plate;

the stamping upper die comprises an upper die base, and an extrusion punch, an upper die outer guide sleeve and an upper die inner guide pillar which are sequentially arranged on the upper die base from inside to outside, wherein the extrusion punch is arranged in the middle of the upper die base;

the lower forming die comprises a lower die base, and an alloy forming female die and an outer guide post which are sequentially arranged on the lower die base from inside to outside, wherein the lower die base is provided with inner guide holes which are in one-to-one correspondence with and coaxially matched with the inner guide posts of the upper die;

the discharging plate is arranged above the alloy forming female die, and a through hole for the extrusion punch to pass through is formed in the discharging plate;

the extrusion punch, the alloy forming female die and the through hole are arranged coaxially.

2. The power battery aluminum shell rough blank extrusion forming die as claimed in claim 1, characterized in that: four corners of the outer end of the upper die base are provided with upper die outer limiting columns, and four corners of the outer end of the lower die base are provided with lower die outer limiting columns correspondingly matched with the upper die outer limiting columns.

3. The extrusion forming device for the power battery aluminum shell rough blank adopts the extrusion forming die for the power battery aluminum shell rough blank as claimed in claim 1 or 2, and is characterized in that: the hydraulic lifting device comprises a frame, shaping lower mould fixed mounting is on the mesa of frame, mould installation is at the lifting block lower surface in the punching press, installs the hydraulic pressure jacking jar that is used for driving the lifting block to reciprocate in the frame.

4. The extrusion molding device for the rough aluminum shell blank of the power battery as claimed in claim 3, wherein: four bights of elevator wear to be equipped with rather than sliding fit leads positive stand, leads positive stand upper end and connects the fixed station, and the vertical installation of hydraulic jacking jar is on the fixed station, and the piston rod end of hydraulic jacking jar is connected with the elevator.

5. The power battery aluminum shell rough blank extrusion forming device of claim 3, characterized in that: the stripper plate is installed on the table-board through the support column.

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