CN214235840U

CN214235840U - Aluminum scrap jumping-preventing structure for aluminum part stamping

Info

Publication number: CN214235840U
Application number: CN202120272797.6U
Authority: CN
Inventors: 周强; 曹建兵; 周小伟; 张述龙
Original assignee: Qingdao Yusen Precision Industry Co ltd
Current assignee: Qingdao Yusen Precision Industry Co ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-09-21
Anticipated expiration: 2031-01-29

Abstract

The utility model belongs to the technical field of the mould, especially, relate to an aluminium alloy punching press is prevented jumping aluminium bits structure. Prevent that the aluminium bits from jumping upwards and causing the crushing injury to the product when aluminium part punching press. The device comprises an upper die holder, an upper backing plate, an upper clamping plate, a pressure plate, a trimming punch, a pressure plate insert, a stroke limiting screw, a lower die holder, a lower backing plate, a lower die plate and a lower die edge; the upper base plate is arranged at the bottom of the upper die base, the upper clamping plate is arranged at the bottom of the upper base plate, the pressure plate is arranged at the bottom of the upper clamping plate, the pressure plate insert is arranged at the bottom of the pressure plate, the trimming punch is arranged in the upper clamping plate and fixed on the upper die base, and the stroke limiting screws are arranged at two sides of the bottom of the upper die base; the lower backing plate is arranged at the top of the lower die base, the lower die plate is arranged at the top of the lower backing plate, and the lower die knife edge is arranged in the lower die plate and fixed on the lower die base; the front end of the trimming punch is provided with a taper part with the thickness of 6mm, and four wall surfaces of the taper part are inwards inclined by 0.3-0.5 degrees from the top surface to the bottom surface.

Description

Aluminum scrap jumping-preventing structure for aluminum part stamping

Technical Field

The utility model belongs to the technical field of the mould, especially, relate to an aluminium alloy punching press is prevented jumping aluminium bits structure.

Background

With the continuous improvement and perfection of automobile manufacturing, many parts of automobile bodies are changed from traditional iron parts into aluminum parts for light weight, and the improvement of precision, cost reduction and efficiency during the stamping of the aluminum parts become the problems that each enterprise needs to research.

In the past, aluminum scraps can jump upwards when an aluminum part is stamped, then the aluminum scraps fall on a lower die surface to damage a product, and the die surface needs to be cleaned after several sheets are stamped at each time. There are also attempts to add stamping oil or kerosene, the effect is not very obvious although the crush damage is improved to some extent, and the final product needs to be cleaned every time of oil contamination, which seriously results in low production efficiency and increased cost. Later researches show that the reason why the aluminum scraps jump upwards is that small aluminum scraps are generated due to secondary rubbing between the punch and burrs and non-bright parts of the product when the punch moves upwards and then just fall on the lower die to cause pressing damage to the product.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to solve the technical problem that a jump aluminium bits structure is prevented in aluminium part punching press that the aluminium bits up jumped when preventing the aluminium part punching press and caused the crushing wound to the product is provided.

In order to solve the technical problem, the utility model discloses the technical scheme who takes is: an aluminum piece stamping anti-jumping aluminum scrap structure comprises an upper die base, an upper backing plate, an upper clamping plate, a pressure plate, a trimming punch, a pressure plate insert, a stroke limiting screw, a lower die base, a lower backing plate, a lower die plate and a lower die knife edge; the upper base plate is arranged at the bottom of the upper die base, the upper clamping plate is arranged at the bottom of the upper base plate, the pressure plate is arranged at the bottom of the upper clamping plate, the pressure plate insert is arranged at the bottom of the pressure plate, the trimming punch is arranged in the upper clamping plate and fixed on the upper die base, and the stroke limiting screws are arranged on two sides of the bottom of the upper die base; the lower backing plate is arranged at the top of the lower die base, the lower die plate is arranged at the top of the lower backing plate, and the lower die knife edge is arranged in the lower die plate and fixed on the lower die base; the front end of the trimming punch is provided with a taper part with the thickness of 6mm, and four wall surfaces of the taper part are inwards inclined by 0.3-0.5 degrees from the top surface to the bottom surface.

In the aluminum scrap jumping-preventing structure for aluminum part stamping, mirror polishing treatment is performed on four wall surfaces of the taper part.

The utility model discloses aluminium part punching press is prevented jumping aluminium bits structure's advantage is:

1. the utility model discloses aluminium part punching press anti-bouncing aluminium bits structure, deburring drift front end is equipped with 6mm thick tapering portion, four walls of tapering portion by the top surface to bottom surface direction tilt-in 0.3-0.5, four walls after the slope design enclose into the tapering portion that the bottom surface is little, the top surface is big, and each wall all does the mirror finish, just can not cause the secondary to cut and rub to the product when deburring the drift is towards the hole or is repaired the limit and is gone back like this; the structure also well solves the problem that the aluminum scraps are brought upwards to cause pressure damage to the product during the stamping production of the aluminum piece; stable in structure, reduction in production cost has improved production efficiency.

Drawings

Fig. 1 is a schematic view of the mold closing structure of the present invention;

fig. 2 is an enlarged schematic view of a portion a of fig. 1 according to the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Embodiment 1, as shown in fig. 1 and 2, an aluminum piece stamping anti-bouncing aluminum scrap structure comprises an upper die holder 1, an upper backing plate 2, an upper clamping plate 3, a pressure plate 4, a trimming punch 5, a pressure plate insert 6, a stroke limit screw 7, a lower die holder 8, a lower backing plate 9, a lower die plate 10 and a lower die edge 11; the upper backing plate 2 is arranged at the bottom of the upper die holder 1, the upper clamping plate 3 is arranged at the bottom of the upper backing plate 2, the pressure plate 4 is arranged at the bottom of the upper clamping plate 3, the pressure plate insert 6 is arranged at the bottom of the pressure plate 4, the trimming punch 5 is arranged in the upper clamping plate 3 and fixed on the upper die holder 1, and the stroke limiting screws 7 are arranged at two sides of the bottom of the upper die holder 1; the lower backing plate 9 is mounted at the top of the lower die base 8, the lower die plate 10 is mounted at the top of the lower backing plate 9, and the lower die knife edge 11 is mounted in the lower die plate 10 and fixed on the lower die base 8; the front end of the trimming punch 5 is provided with a taper part 12 with the thickness of 6mm, four wall surfaces of the taper part 12 are inwards inclined by 0.3-0.5 degrees from the top surface to the bottom surface, and the four wall surfaces of the taper part 12 are subjected to mirror polishing treatment.

When the trimming punch 5 is used, the upper die base 1 moves downwards, the material pressing plate insert 6 presses a product to contact the lower die plate 10 firstly, the upper die base 1 continues to move downwards at the moment, the trimming punch 5 starts to work, after punching is completed, the upper die base 1 moves upwards, and due to the design that the end part of the trimming punch 5 is provided with the tapered part 12, four wall surfaces of the tapered part 12 are inclined inwards by 0.3-0.5 degrees from the top surface to the bottom surface, when the trimming punch 5 punches a hole or finishes repairing and moves back, the tapered part 12 can avoid the influence of small aluminum scraps on the product due to secondary scraping and rubbing caused by burrs of the product.

The present invention has been described above by way of example with reference to the accompanying drawings, and it is to be understood that the specific implementations of the present invention are not limited to the above-described embodiments. The present invention can be modified or modified by those skilled in the art without departing from the technical idea of the present invention, and such modifications or modifications naturally fall within the scope of the present invention.

Claims

1. The utility model provides an aluminium alloy punching press is prevented jumping aluminium bits structure which characterized in that: the device comprises an upper die holder (1), an upper backing plate (2), an upper clamping plate (3), a pressure plate (4), a trimming punch (5), a pressure plate insert (6), a stroke limiting screw (7), a lower die holder (8), a lower backing plate (9), a lower die plate (10) and a lower die edge (11); the upper base plate (2) is mounted at the bottom of the upper die holder (1), the upper clamping plate (3) is mounted at the bottom of the upper base plate (2), the pressure plate (4) is mounted at the bottom of the upper clamping plate (3), the pressure plate insert (6) is mounted at the bottom of the pressure plate (4), the trimming punch (5) is mounted in the upper clamping plate (3) and fixed on the upper die holder (1), and the stroke limiting screws (7) are mounted at two sides of the bottom of the upper die holder (1); the lower backing plate (9) is arranged at the top of the lower die base (8), the lower die plate (10) is arranged at the top of the lower backing plate (9), and the lower die knife edge (11) is arranged in the lower die plate (10) and fixed on the lower die base (8); the front end of the trimming punch (5) is provided with a taper part (12) with the thickness of 6mm, and four wall surfaces of the taper part (12) are inwards inclined by 0.3-0.5 degrees from the top surface to the bottom surface.

2. The aluminum part stamping anti-bouncing aluminum scrap structure according to claim 1, wherein: and four wall surfaces of the taper part (12) are subjected to mirror polishing treatment.