CN203764929U

CN203764929U - Die-casting mold exhaust block

Info

Publication number: CN203764929U
Application number: CN201320808497.0U
Authority: CN
Inventors: 翁其金; 廖能相; 陈绍科
Original assignee: FUZHOU GUANFENG DIE TECHNOLOGIES Co Ltd
Current assignee: FUZHOU GUANFENG DIE TECHNOLOGIES Co Ltd
Priority date: 2013-12-10
Filing date: 2013-12-10
Publication date: 2014-08-13
Anticipated expiration: 2023-12-10

Abstract

The utility model discloses a die-casting mold exhaust block which comprises a fixed mold upper exhaust block, a dynamic mold lower exhaust block, a jacking bar hole and fixed threads; the fixed mold upper exhaust block and the dynamic mold lower exhaust block are processed out of two blocks of materials through a computer numerical control (CNC) tool in a tooth form shape, the radius of the tooth form shape is R, and the tooth form length of the tooth form shape is L; the jacking bar hole is formed inside the dynamic mold exhaust block; the fixed threads are located on the fixed mold upper exhaust block and the dynamic mold lower exhaust block and used for fixing the fixed mold upper exhaust block and the dynamic mold lower exhaust block. Modification is made to the exhaust structure and the processing technology of an existing exhaust block, wire-cut machining and electric spark technology are eliminated, two blocks of bodies are directly processed through computer numerical control (CNC) processing, and the problem of difficult mold fitting is solved.

Description

A kind of die casting exhaust block

Technical field

The utility model relates to technical field of mold, relates in particular to a kind of die casting exhaust block.

Background technology

The die-casting forming die of the die castings such as that exhaust block is mainly used in is large-scale, complex structure, forming requirements height, exhaust block is with body (raw material H13, material hardness is HRC47-49) some profile of tooth air discharge ducts of offering of vertical direction, to solve in press casting procedure the problems such as moulding is bad.Exhaust block by exhaust mode be generally divided into 1, natural exhaust; 2, strengthening exhaust---exhaust block; 3, evacuated die-casting process.

General exhaust block manufacture be on body with profile of tooth air discharge duct line cutting processing, then with CNC digital control processing, electric spark, pincers worker, join that mould Come completes.As depicted in figs. 1 and 2, existing process gases piece comprises exhaust block, retaining thread and jogger hole under exhaust block on cover half, dynamic model, wherein on cover half, under exhaust block and dynamic model, exhaust block is prolonging castellated shape by an integral material by line cutting and is processing, dreg discharging tunnel under dynamic model in exhaust block by CNC digital control processing out, on cover half under exhaust block and dynamic model the tooth gaps between exhaust block by spark machined out, then by pincers worker join mould, polishing completes.Above processing technology is more loaded down with trivial details, and does the electrode materials that a set of exhaust block needs many waste electric sparks, die joint is profile of tooth, increased the difficulty that mould is joined in pincers worker, to such an extent as to exhaust block flies aluminium in process of production.Owing to joining mould difficulty, increase, general exhaust block can only be done an exhaust serrate slot.

Summary of the invention

Because the above-mentioned defect of prior art, technical problem to be solved in the utility model is to provide a kind of die casting exhaust block, for existing exhaust block, on exhaust structure He in processing technology, improve, the problem of mould difficulty difficulty is joined in solution, on original exhaust block basis, cancel line cutting processing, electric spark technique, with two block bodies directly with CNC digital control processing, with pincers worker, join mould again and just can use.

For achieving the above object, the utility model provides a kind of die casting exhaust block, comprises exhaust block, jogger hole and retaining thread under exhaust block on cover half, dynamic model, and on described cover half, under exhaust block and described dynamic model, exhaust block is by CNC numerical control by two block of material 4 cutters process with castellated shape, and the radius of described castellated shape is R, and the profile length of described castellated shape is L; It is inner that described jogger hole is positioned at described moving die exhaust block, for ejecting the aluminium alloy being trapped on exhaust block; Described retaining thread is positioned on described cover half on exhaust block and dynamic model on exhaust block, for exhaust block under exhaust block and described dynamic model on fixing described cover half.

In better embodiment of the present utility model, described in the value of described R is less than 4 tool radius, span is R1-R2, described R1 and R2 are radius value.

In another better embodiment of the present utility model, described L span is 4.2-6mm.

In better embodiment of the present utility model, described profile of tooth air discharge duct quantity is one or more.

The die casting exhaust block that the utility model provides be take CNC digital control processing as main, has solved the problem of joining mould difficulty difficulty, can do many exhaust serrate slots, guarantees that the exhaust outlet at every place has corresponding exhaust passage.

Below with reference to accompanying drawing, the technique effect of design of the present utility model, concrete structure and generation is described further, to understand fully the purpose of this utility model, feature and effect.

Accompanying drawing explanation

Fig. 1 is prior art exhaust block structural principle schematic diagram;

Fig. 2 is prior art exhaust block front diagram;

Fig. 3 is the exhaust block structural principle schematic diagram of a preferred embodiment of the present utility model;

Fig. 4 is the die casting exhaust block front diagram of a preferred embodiment of the present utility model.

The specific embodiment

As shown in Figure 3 and Figure 4, a kind of die casting exhaust block, comprises on cover half exhaust block 2, jogger hole 3 and retaining thread 4 under exhaust block 1, dynamic model.On cover half, under exhaust block 1 and dynamic model, exhaust block 2 is by CNC numerical control by two block of material 4 cutters process with castellated shape, and the radius of castellated shape is R, and the length of profile of tooth is L.Jogger hole 3 is positioned at moving die exhaust block 2 inside, for ejecting the aluminium alloy being trapped on exhaust block.Retaining thread 4 is positioned on cover half on exhaust block 1 and dynamic model on exhaust block 2, for exhaust block 2 under exhaust block 1 on fixing cover half and dynamic model.The control of two size R and L: R value exists below 4 tool radius, general value is between R1-R2, and wherein R1 and R2 are the radiuses of R in Fig. 2; L will guarantee 4 cutters can be processed and put in place, and general value is 4.2-6mm.Between.

On cover half, under exhaust block 1 and dynamic model, exhaust block 2 is no longer processed along castellated shape by line cutting by an integral material, but by two block of material by CNC numerical control 4 cutters process with castellated shape, die joint between the two does not re-use serrate slot mode, changes plane formula into, and that can reduce like this pincers worker joins mould difficulty, also guaranteed to coordinate problem not in place between die joint, also solved the problem that flies aluminium on old technology exhaust block.

Profile of tooth air discharge duct is by CNC digital control processing, changed profile of tooth vent groove configuration single on old technology, and the profile of tooth air discharge duct quantity on existing structure can be single, can be also a plurality of.

More than describe preferred embodiment of the present utility model in detail.The ordinary skill that should be appreciated that this area just can be made many modifications and variations according to design of the present utility model without creative work.Therefore, all technical staff in the art comply with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be in the determined protection domain by claims.

Claims

1. a die casting exhaust block, comprise exhaust block (2) under exhaust block on cover half (1), dynamic model, jogger hole (3) and retaining thread (4), it is characterized in that, under exhaust block on described cover half (1) and described dynamic model, exhaust block (2) is by CNC numerical control by two block of material cutter processes with castellated shape, and the radius of described profile of tooth air discharge duct is R, and the length of described profile of tooth air discharge duct shape is L; Described jogger hole (3) is positioned at described moving die exhaust block (2) inside, for ejecting the aluminium alloy being trapped on exhaust block; Described retaining thread (4) is positioned under exhaust block on described cover half (1) and described dynamic model on exhaust block (2), for exhaust block (2) under exhaust block (1) and described dynamic model on fixing described cover half.

2. die casting exhaust block as claimed in claim 1, is characterized in that, described in the value of described R is less than tool radius.

3. die casting exhaust block as claimed in claim 1, is characterized in that, described L span is 4.2-6mm.

4. die casting exhaust block as claimed in claim 1, is characterized in that, described profile of tooth air discharge duct quantity is one or more.