CN208555927U - A kind of die casting of automobile air compressor cylinder body - Google Patents

Abstract

The utility model discloses a kind of die castings of automobile air compressor cylinder body, its drip irrigation device includes upper die and lower die, the upper mold offers liquid injection port, the opposite side of the upper die and lower die is vertically equipped with positioning column in edge, sliding is equipped with the side form for blocking the upper die and lower die gap between the adjacent positioning column, is uniformly provided with and the matched groove of cooling fin on the inside of the side form.The utility model has conveniently stripped, effect of the reduction to the destruction of cylinder body.

Description

A kind of die casting of automobile air compressor cylinder body

Technical field

The utility model relates to a kind of die castings, and more specifically it is related to a kind of pressure of automobile air compressor cylinder body Casting mould.

Background technique

The common production method of one of present industrial production, forming principle exactly pass through metal material when die cast Die casting machine injects cooling and shaping in die casting.

Automobile air compressor is mainly used for closing to brake system of car, suspension, car door opening and other are assisted Necessary gas source is provided with pneumatic device.In general, the outer wall of automobile air compressor cylinder body is dissipated equipped with large number of integral type Backing, these cooling fins are thin-wall construction.

Currently, the Chinese patent that notification number is CN202621873U discloses a kind of small-sized flange-cooled air pressure cylinder body Molding die, including slide block assembly, upper framed, low mold frame and with the type chamber of small-sized flange-cooled air pressure shape of block Upper mold core and lower mold core, it is upper it is framed be equipped with sprue gate, sprue gate respectively with upper mold core, the cooling fin groove portion of lower mold core upper impression Divide and is correspondingly arranged.

The prior art is similar to the molding die of above-mentioned small-sized flange-cooled air pressure cylinder body, by molten metal from pouring when die casting Geat enters in heat dissipation film trap, so that die casting is formed with gelled cylinder body.But be formed after cooling fin and upper mold core and The contact area of lower mold core is big, and structure is complicated, and the integrality of cylinder body is easily destroyed when separating upper mold core and lower mold core.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide the pressures of automobile air compressor cylinder body Casting mould the advantage is that conveniently stripped, damage of the reduction to cylinder body.

To achieve the above object, the utility model provides following technical solution: a kind of automobile air compressor cylinder body Die casting, including upper die and lower die, the upper mold offer liquid injection port, and the opposite side of the upper die and lower die is in edge It is vertically equipped with positioning column, sliding is equipped with the side form for blocking the upper die and lower die gap between the adjacent positioning column, It is uniformly provided with and the matched groove of cooling fin on the inside of the side form.

By using above-mentioned technical proposal, the positioning column of upper die and lower die is aligned one by one, to make between upper die and lower die There are distances, form die casting space；Side form blocks the gap of four side of upper die and lower die respectively, while side form is pushed against positioning column Side wall so that upper die and lower die relative position keep stablize, improve the accuracy of die casting；Each side form offers Cooling fin etc. is divided die casting on side form by identical groove, therefore cooling fin is only contacted with groove；When demoulding, successively remove Mould and side form reduce the contact area of side form and cooling fin, and side form since the fin count amount on each side form becomes smaller Skidding distance is short, convenient for demoulding, facilitates the integrality for protecting cylinder body.

The utility model is further arranged to: the liquid injection port is gradually increased along the direction radius close to the lower die.

By using above-mentioned technical proposal, round table-like material head is formed after the completion of die casting inside liquid injection port, deviates from upper mold When material head play guiding role, reduce resistance, convenient for demoulding.

The utility model is further arranged to: the side form is provided tiltedly with binding face towards the two sides of the positioning column, The binding face is close along gradually tilting far from external direction.

By using above-mentioned technical proposal, after the side form of four sides slides into positioning column, the binding face of adjacent side form is closely pasted It closes, increases the contact area between side form, reinforce leakproofness.

The utility model is further arranged to: the lower die edge is equipped with the fillet for extending to the positioning column.

By using above-mentioned technical proposal, fillet makes each corner of lower die become round and smooth, reduces sharp sense, avoids accidentally injuring work Make personnel.

The utility model is further arranged to: the opposite two sides in the upper mold top edge extend outwardly equipped with convex edge.

By using above-mentioned technical proposal, convex edge protrudes from mould surface, convenient for crawl upper mold, can facilitate shifting using convex edge Dynamic upper mold.

The utility model is further arranged to: it is arc-shaped on the inside of the side form, and it is enclosed columned type chamber.

By using above-mentioned technical proposal, side form distinguishes quadrant arc length, when demoulding in the stress concentration portion of side form At the heart, side form is taken out convenient for force.

The utility model is further arranged to: the lower die is arranged right below the liquid injection port for accepting molten metal Overflow pipe.

By using above-mentioned technical proposal, molten metal is flowed in overflow pipe by liquid injection port, and along the upper of overflow pipe Edge overflows, and uniformly diffuses to that type is intracavitary, reduces shock of the molten metal to lower die, improves die-cast rotor housing accuracy of shape.

The utility model is further arranged to: the overflow pipe bottom centre offers concave hole.

By using above-mentioned technical proposal, concave hole increases the depth of overflow pipe, and indent pore radius is less than overflow pipe, receives The molten metal for combining in concave hole makes overflow bottom of the tube become soft, reduces and splashes.

In conclusion the utility model has the advantage that

1, forming cavity is enclosed by upper die and lower die and side form jointly, reduces the contact area of each section and die-cast rotor housing, just In demoulding；

2, the binding face of side form increases mutual contact area, the leakproofness of reinforced chamber.

Detailed description of the invention

Fig. 1 is the present embodiment overall structure diagram；

Fig. 2 is confined explosion's schematic diagram that the present embodiment highlights side form；

Fig. 3 is the present embodiment upper mold cross-sectional view；

Fig. 4 is the present embodiment lower die top view.

Description of symbols: 1, upper mold；2, lower die；3, liquid injection port；4, positioning column；5, side form；6, groove；7, binding face； 8, fillet；9, convex edge；10, overflow pipe；11, concave hole；12, type chamber.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

Embodiment, a kind of die casting of automobile air compressor cylinder body, as shown in Figure 1 and Figure 2, including upper mold 1, lower die 2 And the side form 5 between upper mold 1 and lower die 2, it is enclosed and shape of block respective side by upper mold 1, lower die 2 and side form 5 Type chamber 12.Wherein, it is uniformly provided with the groove 6 to match with cooling fin on side form 5, offers and offers note at 1 center of upper mold Liquid mouth 3 injects molten metal into type chamber 12 by liquid injection port 3, required cylinder body is obtained after demoulding to be cooled.

As shown in figure 3, liquid injection port 3 is gradually increased along the direction radius close to lower die 2.After the completion of die casting in liquid injection port 3 Portion forms round table-like material head, and material head plays guiding role when deviating from upper mold 1, reduces resistance, convenient for demoulding.

As shown in Fig. 2, upper mold 1 and the opposite side of lower die 2 are vertically equipped with positioning column 4 in edge, the sliding of side form 5 is set to Between the adjacent positioned column 4 and gap of closure upper mold 1 and lower die 2.

Positioning column 4 increases the spacing of upper mold 1 and lower die 2, so that cylinder body takes shape between upper mold 1 and lower die 2, in reduction The contact area of mould 1 and lower die 2 and cylinder body protects the integrality of cylinder body convenient for abjection upper mold 1.Side form 5, which slides into adjacent two, to be determined Between the column 4 of position, so that the relative position of upper mold 1 and lower die 2 keeps stablizing, 12 shape of type chamber is remained unchanged, and is convenient for die casting Locate satisfactory cylinder body.

As shown in Fig. 2, side form 5 is equipped with binding face 7 towards the two sides of positioning column 4, and binding face 7 is along by plesiotype chamber 12 Direction gradually tilt it is close.When four side forms 5 slide insertion positioning column 4, the adjacent 5 sufficiently fitting of binding face 7 of side form increases Contact area between big side form 5, the leakproofness of reinforced chamber 12 reduce molten metal leakage.

As shown in Fig. 2, the inner wall of side form 5 is arc-shaped, therefore it is enclosed cylindrical type chamber 12.Side form 5 is respectively four / mono- circular arc is long, when demoulding at the stress concentration portion center of side form 5, takes out side form 5 convenient for force.

As shown in figure 3, the upper edge of upper mold 1 extends outward to form convex edge 9 in opposite sides respectively.Convex edge 9 protrudes from 1 surface of mould grabs convenient for staff, to control the movement of upper mold 1.

As shown in Figure 2, Figure 4 shows, four edges of lower die 2 are vertically equipped with fillet 8 and fillet 8 extends to positioning column 4.Circle Angle 8 makes 2 edge of lower die become round and smooth, reduces sharp sense, avoids accidentally injuring staff.

As shown in figure 4, lower die 2 is vertically equipped with the overflow pipe 10 for being right against liquid injection port 3 towards 1 side of upper mold.Molten metal is logical It crosses liquid injection port 3 to flow in overflow pipe 10, and is overflowed along the upper edge of overflow pipe 10, uniformly diffused in type chamber 12, reduced Shock of the molten metal to lower die 2, the stability of 12 shape of maintenance chamber improve die-cast rotor housing accuracy of shape.

As shown in figure 4, the bottom center of overflow pipe 10 offers concave hole 11.Concave hole 11 increases overflow pipe 10 Depth, 11 radius of concave hole are less than overflow pipe 10, and the molten metal for being collected in concave hole 11 makes 10 bottom of overflow pipe become soft, subtract Small splashing.

Press casting procedure: side form 5 is successively slid and is entered between the positioning column 4 of lower die 2, until the binding face 7 of adjacent side form 5 Sufficiently fitting；Then the positioning column 4 of upper mold 1 is inserted into side on both sides respectively, to be enclosed stable type chamber 12；Molten metal It is injected by liquid injection port 3 until being full of type chamber 12；After cooling and shaping, upper mold 1 and side form 5 are successively sloughed.

The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this Within novel design concept, any modification, equivalent replacement, improvement and so on should be included in the protection of the utility model Within the scope of.

Claims (8)

1. a kind of die casting of automobile air compressor cylinder body, including upper mold (1) and lower die (2), the upper mold (1) offer Liquid injection port (3), it is characterised in that: the upper mold (1) and the opposite side of lower die (2) are vertically equipped with positioning column in edge (4), sliding is equipped with the side form (5) for blocking the upper mold (1) and lower die (2) gap, institute between the adjacent positioning column (4) It states and is uniformly provided with and the matched groove of cooling fin (6) on the inside of side form (5).

2. the die casting of automobile air compressor cylinder body according to claim 1, it is characterised in that: the liquid injection port (3) it is gradually increased along the direction radius close to the lower die (2).

3. the die casting of automobile air compressor cylinder body according to claim 1, it is characterised in that: the side form (5) Two sides towards the positioning column (4) are provided tiltedly with binding face (7), the binding face (7) along far from external direction gradually It tilts close.

4. the die casting of automobile air compressor cylinder body according to claim 1, it is characterised in that: the lower die (2) Edge is equipped with the fillet (8) for extending to the positioning column (4).

5. the die casting of automobile air compressor cylinder body according to claim 1, it is characterised in that: the upper mold (1) The opposite two sides in top edge extend outwardly equipped with convex edge (9).

6. the die casting of automobile air compressor cylinder body according to claim 1, it is characterised in that: the side form (5) Inside is arc-shaped, and is enclosed columned type chamber (12).

7. the die casting of automobile air compressor cylinder body according to claim 1, it is characterised in that: the lower die (2) In the overflow pipe (10) of the liquid injection port (3) being arranged right below for accepting molten metal.

8. the die casting of automobile air compressor cylinder body according to claim 7, it is characterised in that: the overflow pipe (10) bottom centre offers concave hole (11).