CN201271670Y

CN201271670Y - Hot extrusion die for large-sized motor casing

Info

Publication number: CN201271670Y
Application number: CNU2008200395881U
Authority: CN
Inventors: 邵孟坤; 徐建军
Original assignee: JIANGSHUN MOULDS CO Ltd JIANGYIN
Current assignee: JIANGSHUN MOULDS CO Ltd JIANGYIN
Priority date: 2008-09-01
Filing date: 2008-09-01
Publication date: 2009-07-15
Anticipated expiration: 2018-09-01

Abstract

The utility model relates to a hot extrusion die of large motor shell, which is mainly used for the hot extrusion of the large motor shell. The hot extrusion die comprises a prepositioned flow guiding plate (1), an upper die (2) and a lower die(3), and is characterized in that six feed holes (1.1) are circumferentially and uniformly distributed on the feed surface of the prepositioned flow guiding plate (1), and the feed holes (1.1) expand backwards obliquely to form flow guiding plate expanding holes (1.2); six relief-holes (2.2) and six bridge positions (2.3) are uniformly distributed on the feed surface of the upper die (2), and the relief-holes (2.2) expand backwards obliquely to form upper die expanding holes (2.1); a square head die core (2.4) is arranged at the center of the discharge surface of the upper die (2), and a welding chamber (3.1) and a die cavity (3.2) are arranged on the feed surface of the lower die (3); and a counterbore (3.3) is arranged on the discharge surface. The utility model can effectively produce large motor shells on a relatively smaller extruder, and can effectively avoid welding seam and has long service life.

Description

The hot-extrusion mold of high capacity motor shell

(1) technical field

The utility model relates to a kind of aluminium section hot-extrusion die.Be mainly used in the hot extrusion of high capacity motor shell.Belong to the mold machining technology field.

(2) background technology

The hot-extrusion mold of high capacity motor shell (as Fig. 9) belongs to generous head mould tool, and the wall thickness great disparity is bigger, factors such as bigger, the external fenestra of cantilevered tab is bigger, complex-shaped, cause problems such as mould molding difficulty, extruding is unstable, output is few, make motor casing hot-extrusion mold scrappage be higher than common die far away.In use pressurized is bigger because of the aluminium endoporus, so do not allow to exist weld seam (seam line) on section bar.Next is mould strength and life problems, and all the time, generous head mould tool is exactly the higher kind of subscription rate rate in the hot extrusion industry, and its reason is exactly problems such as the bridge location area is big, the bridge location span is long, the seam space is little.Solve this type of problem and preferably go up large-size extruder, but present many aluminium section bar plants do not have the large-size extruder working condition.Improve this aluminium section bar prouctiveness, and successfully develop this mould, so largely still will solve from Mould design.The present high capacity motor shell hot-extrusion mold that comparatively generally uses, because of being squeezed the less restriction of machine tonnage, aluminium bar is less, and the aluminium section bar section is bigger, near the aluminium bar scope, the peripheral feed difficulty of aluminium section bar, and flow velocity is wayward, be easy to cause fin section small and dense on the mould beat to occur, phenomenon such as stay.Trace it to its cause, be because: preposition deflector and patrix adopt the straight hole charging, can not guarantee the feed of aluminium section bar section periphery; Counterdie discharge opening place is designed to clear opening, easily cause mould assembling, move and use in to the collision of the peripheral fin of aluminium place mould steel.

(3) summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of and can effectively avoid weld seam (seam line), the long hot-extrusion mold that can effectively produce the high capacity motor shell on less relatively extruder of life-span.

The purpose of this utility model is achieved in that a kind of hot-extrusion mold of high capacity motor shell, comprises preposition deflector, upper die and lower die, it is characterized in that:

Circumferentially be evenly equipped with six charging holes on the described preposition deflector charging face, the formula expansion forms the deflector extending bore to this charging hole to retreading into,

Be evenly equipped with six tap holes and six bridge locations on the charging face of described patrix, the formula expansion forms the patrix extending bore to this tap hole to retreading into, and the charge level centre that goes out of patrix is provided with a square toes core rod,

Described counterdie charging face is provided with seam chamber and die cavity, goes out charge level and is provided with counterbore.And the time deepened the degree of depth of seam chamber in design.

The utility model fill process adopts tiltedly advances formula expansion charging.The seam chamber, the die cavity that tiltedly advance square toes core rod that formula expansion charging, patrix go out charge level, counterdie charging face by preposition deflector and patrix and go out the counterbore of charge level and final molding.

Compare with existing mold, the utility model mould has following advantage:

1, preposition deflector and patrix adopt and tiltedly advance formula expansion charging, have guaranteed the feed of aluminium section bar section periphery.

2, patrix adopts six circumferential uniform designs of tap hole, the balanced flow velocity of aluminium water.

3, counterdie discharge opening place is designed to counterbore, can effectively prevent like this mould assembling, move and use in to the collision of the peripheral fin of aluminium place mould steel, protected fragile fin place mould cantilever.Patrix and counterdie adopt seam to closely cooperate, and prevent to occur in extrusion process to cause through little displacement and shake that mould scraps.

4, the design of mould seam chamber by deepening mould seam chamber, increases the seam space on counterdie; reduced the impulsive force of being brought when aluminium water flows; allow pressure be evenly distributed on each place of mould, effectively protected the little tooth of mould, eliminated the section bar weld seam.

Solved the big square toes class of high capacity motor shell mould in less relatively extruder extruding by above measure, should guarantee the aluminium section bar weld seam, protected the production difficult problem of small and dense fin intensity again, and improved the success rate and the life cycle of mould.

(4) description of drawings

Fig. 1 is the front view of the utility model mould.

Fig. 2 is the A-A cut-away view of Fig. 1.

Fig. 3 is a preposition deflector front view of the present utility model.

Fig. 4 is the B-B cut-away view of Fig. 3.

Fig. 5 is a patrix front view of the present utility model.

Fig. 6 is the C-C cut-away view of Fig. 5.

Fig. 7 is the front view of counterdie of the present utility model.

Fig. 8 is the D-D cut-away view of Fig. 7.

The end view drawing of the high capacity motor shell that Fig. 9 relates to for the utility model.

Among the figure: preposition deflector 1, patrix 2, counterdie 3; Charging hole 1.1, deflector extending bore 1.2; Patrix extending bore 2.1, tap hole 2.2, bridge location 2.3, square toes core rod 2.4; Seam chamber 3.1, die cavity 3.2, counterbore 3.3.

(5) specific embodiment

Referring to Fig. 1～2, the hot-extrusion mold of the high capacity motor shell that the utility model relates to is made up of preposition deflector 1, patrix 2 and counterdie 3.Described deflector 1, patrix 2 and counterdie 3 closely cooperate by seam, and fix with screw and pin.

Referring to Fig. 3～4, circumferentially be evenly equipped with charging hole 1.1 on the described preposition deflector 1 charging face, the formula expansion forms deflector extending bore 1.2 to this charging hole 1.1 to retreading into,

Referring to Fig. 5～6, the charging face of described patrix 2 is evenly equipped with six tap holes 2.2 and six bridge locations 2.3, and the formula expansion forms patrix extending bore 2.1 to this tap hole 2.2 to retreading into, and the charge level centre that goes out of patrix 2 is provided with a square toes core rod 2.4.

Referring to Fig. 7～8, described counterdie 3 charging faces are provided with seam chamber 3.1 and die cavity 3.2, go out charge level and are provided with counterbore 3.3, and deepened the degree of depth of seam chamber when design.

Claims

1, a kind of hot-extrusion mold of high capacity motor shell comprises preposition deflector (1), patrix (2) and counterdie (3), it is characterized in that:

Circumferentially be evenly equipped with six charging holes (1.1) on the charging face of described preposition deflector (1), the formula expansion forms deflector extending bore (1.2) to this charging hole (1.1) to retreading into,

Be evenly equipped with six tap holes (2.2) and six bridge locations (2.3) on the charging face of described patrix (2), the formula expansion forms patrix extending bore (2.1) to this tap hole (2.2) to retreading into, and the charge level centre that goes out of patrix (2) is provided with a square toes core rod (2.4),

Described counterdie (3) charging face is provided with seam chamber (3.1) and die cavity (3.2), goes out charge level and is provided with counterbore (3.3).