CN2065516U

CN2065516U - Simultinuous same position drilling and pressing die for aluminium cover

Info

Publication number: CN2065516U
Application number: CN 89209135
Authority: CN
Inventors: 吴书圣
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-07-12
Filing date: 1989-07-12
Publication date: 1990-11-14

Abstract

The utility model relates to pressing a profiled hole with a sloping-surface wed, in particular to pressing a die for an aluminum cover whose concave die is a sloping surface with an obtuse angle or is a curved surface with an obtuse angle. In the utility model, the edge of an ordinary right angle or the edge of an ordinary acute angle is formed to the edge of the obtuse angle with a sloping surface or the edge of the obtuse angle with a curved surface; the aluminum cover which is provided with the web and a hippocrepiform hole is simultaneously punched and pressed on the same position. The utility model has the advantages of being easily manufactured, reducing two steps, increasing work efficiency by four times, ensuring the accurate and consistent position between the hole and the web, and increasing a qualification rate from 70% to 100%.

Description

Simultinuous same position drilling and pressing die for aluminium cover

The utility model relates to the profiled holes that punching out has muscle limit, inclined-plane, and particularly its die is the aluminium cover punch die of inclined-plane, obtuse angle or curved surface.It comprises ungulate drift, garden drift, die, stripper, rubber, mould bases.

Ungulate hole, tongue that aluminium is covered with centre bore, have a muscle limit have concave bar.Normally multiple operation is produced.Because it is used for cutting magnetic line, drive the beat of pointer, so form and position tolerance and dynamic and static cooperation are had relatively high expectations.Because it must adopt aluminium, intensity is not high, so gain in strength with the beading limit.But its divides and could to be realized by punching, beading two procedures, cannot say for sure hole, concentric, the coordination of muscle, and very easily goes out waste product.

The purpose of this utility model is to avoid above-mentioned deficiency and the hood-shaped position of a kind of effective assurance aluminium tolerance, coordination are provided, produce the punch die of the ungulate hole that has muscle limit, inclined-plane, centre bore, tongue concave bar synchronously.

The utility model is achieved in that common die right angle or acute angle cutting edge bevel obtuse angle or curved surface cutting edge, in the synchronous punching of same position, press shape, in tongue center machined grooves, just can realize once producing hole, muscle limit, concave bar at the stripper processing flange corresponding with groove.

The utility model need only be processed into inclined-plane, obtuse angle or curved surface with die right angle or acute angle cutting edge, processes a groove at tongue, at stripper processing flange, does not increase and changes other structure, and is simple especially.It not only reduces by two cover punch dies, guarantees that especially the position of hole and muscle is accurate, consistent, and improves three times of work efficiency, makes qualification rate bring up to 100% by 70%.

Concrete structure of the present utility model is provided by following examples and accompanying drawing.

Fig. 1 is the partial view and the operating mode of the aluminium cover punch die that provides according to the utility model.It adopts cold-punching mould GB2872-81 structure substantially, can not state self-evidently, existing describes in detail in conjunction with the accompanying drawings.

This mould comprises ungulate drift (3), the centre bore drift (4) of patrix, the stripper (7) that has flange (6), rubber or spring (1); Die in the counterdie (12) has and the corresponding hole of patrix, groove.(5) for finishing, punching out is placed on the aluminium cover that die (12) is gone up inactive state.Its operating mode is as follows: when patrix by press under towards the time, contact the aluminium cover plane that is placed on the die (12) by stripper (7) earlier, groove (8) acting in conjunction under the effect of rubber or spring (1) in the flange (6) of (7) and the die extrudes concave bar (10); Meanwhile ungulate drift (3) is also to aluminium cover planar pressing, because it is the inclined-plane of 20-60 or the curved surface of R1-R10 (2) that the ungulate hole (11) of die (12) is shaped on α, aluminium cover (5) is deformation uniformly before this, shears mutually with inclined-plane cutting edge (2) toward low punch (3) and go out the ungulate hole that has the muscle limit; Also go out simultaneously centre bore (9).Stripper (7) is when drift moves, and it is absorbed to impact by rubber or spring (1) and keeps relative static conditions; When the punch die return, rubber or spring (1) release energy and evenly the aluminium cover are released drift, and the very favourable leveling aluminium of this structure cover is convenient to balance.

It can also be made flange (6) (3) the same rigidity drift and realize suppressing the tongue concave bar, and its effect is identical.

Claims

1, a kind ofly be specially adapted to the aluminium cover punch die that punching out has muscle limit, inclined-plane profiled holes, it comprises ungulate drift, garden drift, die, stripper, rubber, mould bases, and the cutting edge of die that it is characterized in that it is inclined-plane, obtuse angle or curved surface.

2, inclined-plane, cutting edge of die obtuse angle according to claim 1 is characterised in that the angle α of it and die horizontal plane is 20-60; Its cutting edge curved surface features is that the angle, garden is R1-R10.