CN211803634U

CN211803634U - Thick material support cold forging forming die structure

Info

Publication number: CN211803634U
Application number: CN202020084554.5U
Authority: CN
Inventors: 彭烈艳; 黄国涛; 邹雁燕
Original assignee: Dongguan Zhongxing Rui Electronic Technology Co ltd
Current assignee: Dongguan Zhongxing Rui Electronic Technology Co ltd
Priority date: 2020-01-15
Filing date: 2020-01-15
Publication date: 2020-10-30
Anticipated expiration: 2030-01-15

Abstract

The utility model discloses a thick material support cold forging forming die structure, including last mould and lower mould, be equipped with the cold forging drift that downwardly extends to the outside of last mould in the last mould, the lower mould corresponds the position of cold forging drift is equipped with the lower mould mold insert, still includes cold forging thickness guiding mechanism, cold forging thickness guiding mechanism is including setting up go up the adjusting screw of mould side, follow transversely extend to the cold forging thickness adjusting lever in the outside, adjustment support, upwards extend from the upper end of cold forging drift back the pull rod, fix the drift adjusting block of cold forging drift upper end, adjusting screw is connected with cold forging thickness adjusting lever transmission through the adjustment support, the one end that cold forging thickness adjusting lever is located the upper mould is the wedge, the drift adjusting block be equipped with the wedge one end sliding fit's inclined plane of adjusting lever. The thick material support cold forging forming die is easy to adjust the thickness of a cold forging forming material and has high bearing capacity.

Description

Thick material support cold forging forming die structure

Technical Field

The utility model relates to a cold forging forming die field, in particular to thick material support cold forging forming die structure.

Background

Cold forging is a process of forging and forming metal at room temperature. The cold forging comprises deformation forms such as upsetting, die forging, extrusion and the like, and belongs to cold volume forming. The cold forging process is developed from cold extrusion, and gradually extends to the cold die forging and cold finish forging. Compared with hot die forging, the main advantages of cold forging are that the blank is not heated, so that the external dimension and the internal quality of the forged piece caused by heating are avoided, and the heating equipment is omitted. The cold forging has high dimensional precision and small roughness value, reduces cutting processing, saves materials, reduces cost and is easy to realize mechanical automatic production. Therefore, the composite material is widely popularized and applied in industries such as automobiles, motorcycles, bicycles, tractors, household appliances, textile machinery, military industry, aviation industry and the like, and is increasingly expanded. The main technical problems of the cold forging process are that the strength of metal is high in a cold state, the metal has a strengthening effect in a deformation process, the deformation resistance is several times to dozens of times larger than that of the metal at a high temperature, and the metal is poor in plasticity and easy to crack.

SUMMERY OF THE UTILITY MODEL

In view of the above problem, the utility model provides a thick material support cold forging forming die structure easily adjusts thick material cold forging forming material's shaping thickness, and can stably carry out cold forging processing 1.8-2.5 mm's thick material to 1 mm's forming material to and the plane degree reaches 0.05 mm.

In order to achieve the above object, the utility model provides a following technical scheme:

thick material support cold forging forming die structure, including last mould and lower mould, be equipped with the cold forging drift that downwardly extends to the outside of last mould in the last mould, the lower mould corresponds the position of cold forging drift is equipped with the lower mould mold insert, still includes cold forging thickness guiding mechanism, cold forging thickness guiding mechanism is including setting up go up the adjusting screw of mould side, follow transversely extend to the cold forging thickness adjusting lever in the upper mould outside, adjusting bracket, follow the upper end of cold forging drift upwards extend the pull rod that backs, fix the drift adjusting block of cold forging drift upper end, adjusting screw passes through adjusting bracket and is connected with the transmission of cold forging thickness adjusting lever, the one end that the cold forging thickness adjusting lever is located the upper mould is the wedge, the drift adjusting block be equipped with the wedge one end sliding fit's of adjusting lever inclined plane.

Specifically, go up the mould including the upper die base, upper padding plate, punch holder, backstop board, the upper stripper that from top to bottom connects gradually, the cold forging drift by punch holder downwardly extending runs through the lower extreme of supreme stripper, cold forging thickness adjusting lever by extend to in the punch holder the outside of going up the mould, back down the pull rod by the upper end of cold forging drift extends to in the upper die base.

Specifically, adjustment support one end is fixed in the lower extreme of upper die base, the other end are connected adjusting screw, interlude fixed connection the cold forging thickness adjusting lever is located the one end in the mould outside, the adjustment support be fixed in the upper die base one end with the fixed interlude swing joint of adjustment support, the fixed interlude of adjustment support with be connected adjusting screw's one end transmission is connected.

Specifically, one end of the cold forging thickness adjusting rod, which is positioned in the upper die, is inclined upwards to form a wedge shape.

Specifically, the lower die comprises a lower die plate and a lower backing plate, the lower die plate is located on the lower backing plate, and the lower die insert is located on the lower die plate.

Specifically, the upper die and the lower die are internally provided with an in-die guide mechanism for connection.

Specifically, the distance between the upper die and the lower die is 1.8-2.5mm, and the working feed amount of the cold forging punch is 0.8-1.5 mm.

Specifically, the material of the cold forging punch is tungsten steel V30.

Specifically, the lower die insert is made of tungsten steel V30.

Compared with the prior art, this use neotype beneficial effect is: 1. the thickness of the material formed by cold forging can be easily adjusted through the cold forging thickness adjusting mechanism; 2. the cold forging punch is made of tungsten steel V30, so that the hardness and the bearing capacity of the cold forging punch and the lower die insert are improved, the punch is prevented from being compressed and shortened, and the thickness of the cold forging punch is guaranteed to be 1.0 +/-0.03 mm; 3. the lower die insert is made of tungsten steel V30, so that the product is prevented from sinking in the continuous stamping process, and the flatness of the product after cold forging is guaranteed to be 0.05 mm.

Drawings

Fig. 1 is a cross-sectional view of the overall structure of the present invention.

The following are the reference signs: 1. an upper die; 11. cold forging the punch; 12. an upper die holder; 13. an upper base plate; 14. an upper splint; 15. a stopper plate; 16. an upper stripping plate; 2. a lower die; 21. a lower die insert; 22. a lower template; 23. a lower base plate; 3. a cold forging thickness adjusting mechanism; 31. adjusting the screw rod; 32. cold forging the thickness adjusting rod; 33. adjusting the bracket; 34. a retracting pull rod; 35. a punch adjusting block; 4. an in-mold guiding mechanism; 5. and (5) thick materials.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The thick material support cold forging forming die structure shown in the figure 1 comprises an upper die and a lower die, wherein a cold forging punch extending downwards to the outer side of the upper die is arranged in the upper die, a lower die insert is arranged at the position, corresponding to the cold forging punch, of the lower die, the thick material support cold forging forming die structure further comprises a cold forging thickness adjusting mechanism, the cold forging thickness adjusting mechanism comprises an adjusting screw rod arranged on the side face of the upper die, a cold forging thickness adjusting rod extending transversely to the outer side in the upper die, an adjusting support, a backspacing pull rod extending upwards from the upper end of the cold forging punch and a punch adjusting block fixed at the upper end of the cold forging punch, the adjusting screw rod is in transmission connection with the cold forging thickness adjusting rod through the adjusting support, one end, located in the upper die, of the cold forging thickness adjusting rod is in a wedge shape, and the punch adjusting block is.

Specifically, go up the mould including the upper die base, upper padding plate, punch holder, backstop board, the upper stripper that from top to bottom connects gradually, the cold forging drift by punch holder downwardly extending runs through the lower extreme of supreme stripper, cold forging thickness adjusting lever by extend to in the punch holder the outside of going up the mould, back down the pull rod by the upper end of cold forging drift extends to in the upper die base. One end of the adjusting support is fixed at the lower end of the upper die base, the other end of the adjusting support is connected with the adjusting screw rod, and the middle section of the adjusting support is fixedly connected with one end, located on the outer side of the upper die, of the cold forging thickness adjusting rod. The adjusting device comprises an adjusting support, an adjusting screw rod and a fixing screw rod, wherein one end of the adjusting support, which is fixed on an upper die base, is movably connected with the middle section, which is fixed on the adjusting support, and the middle section, which is fixed on the adjusting support, is in transmission connection with one end of the adjusting screw rod. Specifically, one end of the adjusting bracket, which is fixed on the upper die base, is provided with a transverse sliding mechanism, and the middle section of the adjusting bracket is in sliding fit with the sliding mechanism. One end of the cold forging thickness adjusting rod, which is positioned in the upper die, is inclined upwards to form a wedge shape.

The adjusting screw rod rotates, the adjusting bracket can pull the cold forging thickness adjusting rod to move leftwards or rightwards, so that the height of the cold forging punch is controlled, and the thickness of the material after cold forging is controlled. Specifically, the operation process of the cold forging thickness adjusting mechanism is as follows: adjusting screw rotates to the left side, and adjusting screw will drive through the adjustment support cold forging thickness adjusting rod moves to the left side, the drift adjusting block will be at its inclined plane with under the sliding fit effect of the wedge-shaped one end of cold forging thickness adjusting rod and the pulling force effect of backspacing the pull rod, drive the upward movement of cold forging drift, the material thickness bodiness after the cold forging. On the contrary, when the punch adjusting block moves rightwards, under the action of the wedge-shaped end of the cold forging thickness adjusting rod and the inclined surface of the punch adjusting block, the punch adjusting block moves downwards along the inclined surface, the punch adjusting block moves downwards to drive the cold forging punch to move downwards, and the thickness of the material after cold forging is thinner.

The lower die comprises a lower die plate and a lower backing plate, the lower die plate is located on the lower backing plate, and the lower die insert is located on the lower die plate.

Specifically, the utility model discloses thick material support cold forging forming die structure mainly used processes new energy automobile power battery distribution controller support, generally by thickness 2 mm's thick material cold forging processing to 1.0 +/-0.03 mm, and need guarantee cold forging back flatness 0.05 mm. Therefore, the distance between the upper die and the lower die is set to be 1.8-2.5mm, namely the thickness of the processed material is 1.8-2.5mm, and the working feed amount of the cold forging punch is 0.8-1.5mm, namely the thickness of the processed material needs to reach 1.0mm after cold forging and stamping.

The conventional process is machining to achieve a material thickness of 2.0mm → 1.0 mm. Welded together with 2.0mm and 1.0 thickness material. But such processes reduce the overall resistance of the material.

The conventional cold forging punch is used for cold forging a thick material with the thickness of 2mm to 1mm, and the cold forging punch and the lower die insert are used for stress analysis. The punch bears larger force, and the material needs high rigidity; the middle part of the punch head collapses due to the difference of stress distribution; the lower die insert has concentrated stress and is easy to generate depression, and the material needs high rigidity.

According to multiple tests and calculations, the force borne by the cold forging punch from 2.0mm to 1.0mm during the punching process reaches more than 10 tons, when the punch made of common materials bears the large force, the punch is compressed and shortened, and the thickness during cold forging punching cannot be guaranteed to be 1.0 +/-0.03. The cold forging punch head is made of tungsten steel V30, so that the stability of the thickness can be solved.

The lower die insert is also made of V30 material, so that the product is prevented from sinking in the continuous stamping process, and the flatness of the product after cold forging is guaranteed to be 0.05 mm.

Claims

1. Thick material support cold forging forming die structure, including last mould and lower mould, its characterized in that: the upper die is internally provided with a cold forging punch extending downwards to the outer side of the upper die, the lower die is provided with a lower die insert corresponding to the position of the cold forging punch, and the cold forging thickness adjusting mechanism further comprises a cold forging thickness adjusting mechanism, the cold forging thickness adjusting mechanism comprises an adjusting screw rod arranged on the side face of the upper die, a cold forging thickness adjusting rod extending transversely to the outer side in the upper die, an adjusting support, a backspacing pull rod extending upwards from the upper end of the cold forging punch and a punch adjusting block fixed at the upper end of the cold forging punch, the adjusting screw rod is in transmission connection with the cold forging thickness adjusting rod through the adjusting support, one end of the cold forging thickness adjusting rod in the upper die is in a wedge shape, and the punch adjusting block is provided with an inclined surface in sliding fit with one end of the.

2. The thick stock support cold forging forming die structure of claim 1, wherein: go up the mould including the upper die base, upper padding plate, punch holder, backstop board, the upper stripper plate that from top to bottom connects gradually, the cold forging drift by punch holder downwardly extending runs through the lower extreme of supreme stripper plate, cold forging thickness adjusting lever by extend to in the punch holder the outside of last mould, roll back the pull rod by the upper end of cold forging drift extends to in the upper die base.

3. The thick stock support cold forging forming die structure of claim 2, wherein: adjusting support one end is fixed in adjusting screw, interlude fixed connection the cold forging thickness adjusting lever is located the one end in the mould outside, the adjusting support be fixed in the one end of upper die base with the fixed interlude swing joint of adjusting support, the fixed interlude of adjusting support with be connected adjusting screw's one end transmission is connected.

4. The thick stock support cold forging forming die structure of claim 1, wherein: one end of the cold forging thickness adjusting rod, which is positioned in the upper die, is inclined upwards to form a wedge shape.

5. The thick stock support cold forging forming die structure of claim 1, wherein: the lower die comprises a lower die plate and a lower backing plate, the lower die plate is located on the lower backing plate, and the lower die insert is located on the lower die plate.

6. The thick stock support cold forging forming die structure of claim 1, wherein: the upper die is connected with an in-die guide mechanism arranged in the lower die.

7. The thick stock support cold forging forming die structure according to any one of claims 1 to 6, wherein: the distance between the upper die and the lower die is 1.8-2.5mm, and the work feed amount of the cold forging punch is 0.8-1.5 mm.

8. The thick stock support cold forging forming die structure according to any one of claims 1 to 6, wherein: the cold forging punch is made of tungsten steel V30.

9. The thick stock support cold forging forming die structure according to any one of claims 1 to 6, wherein: the lower die insert is made of tungsten steel V30.