CN213410246U - Casting device of flywheel casing - Google Patents

Abstract

The utility model discloses a flywheel casing casting device, which comprises an upper die, a side die and a lower die, wherein the side die is provided with a plurality of blocks, a plurality of side dies are sequentially arranged between the upper die and the lower die in an adjoining manner, and the upper die, the plurality of side dies and the lower die are enclosed into a die cavity at the middle part; a sand core is arranged in the die cavity and comprises an upper core block and a lower core block, the upper core block and the lower core block are arranged oppositely, and cavities are formed in the positions, opposite to the upper core block and the lower core block, of the upper core block and the lower core block.

Description

Casting device of flywheel casing

Technical Field

The utility model belongs to the technical field of the casting of bell housing, concretely relates to casting device of bell housing.

Background

The statements herein merely provide background related to the present disclosure and may not necessarily constitute prior art.

The flywheel shell is used as one of key parts of an automobile engine, is arranged between the engine and a gearbox, is externally connected with a crank case, a starter and an oil pan, is internally provided with a flywheel assembly, and plays a role in connecting an engine body, protecting and carrying. The aluminum flywheel shell is complex in shape and large in size, and belongs to a large aluminum alloy thin-wall part.

At present traditional aluminium flywheel shell adopts the gravity casting process of leading in the overlap joint runner from the terminal surface, and the inventor discovers, because flywheel shell structure is complicated, and current casting mould is mostly the lower mould cooperation setting, is difficult to match the structure of flywheel shell, leads to the technology product yield low, and the product surface subcutaneous gas pocket is more, and the product percent of pass is also lower, and current casting mould quality is heavy simultaneously, inconvenient operation.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a casting device of bell housing, the device divide into mould, side forms, lower mould with the mould, and the side forms sets up the polylith, and the structure of matching bell housing that can be better improves product quality, has improved the product percent of pass greatly.

In order to achieve the above purpose, the present invention is realized by the following technical solution:

in a first aspect, an embodiment of the utility model provides a flywheel casing casting device, including an upper die, a side die, a lower die, the side die is provided with a plurality of blocks, the plurality of side dies are arranged between the upper die and the lower die in an adjacent manner in sequence, and the upper die, the plurality of side dies and the lower die enclose a die cavity in the middle; a sand core is arranged in the die cavity and comprises an upper core block and a lower core block, the upper core block and the lower core block are arranged oppositely, and cavities are formed in the positions, opposite to the upper core block and the lower core block, of the upper core block and the lower core block.

As a further technical scheme, the corners of the upper core block and the lower core block are positioned and connected through rabbets.

As a further technical scheme, adjacent side molds are connected in a splicing mode through clamping blocks and clamping grooves.

As a further technical scheme, the side die and the upper die are fixedly connected through a fastener.

As a further technical scheme, the lower die is provided with an upright post at the edge, the bottom of the side die is provided with a groove, and the groove is connected with the upright post in a clamping manner.

As a further technical scheme, an inner pouring gate is further arranged in the die cavity and is communicated with the riser.

As a further technical scheme, the riser is arranged above the side of the mold cavity.

As a further technical scheme, a pouring gate is arranged in the middle of the lower die and communicated with the die cavity.

As a further technical scheme, a heat-insulating sleeve is arranged at the pouring gate.

As a further technical scheme, the oil cylinder is arranged at the top of the upper die and connected with the drawing rod, the upper die is provided with a through hole for the drawing rod to pass through, and the drawing rod extends downwards to the bottom of the upper die.

Above-mentioned the utility model discloses an embodiment's beneficial effect as follows:

the utility model discloses a casting device sets up mould, side forms, lower mould, and the side forms sets up the polylith, and the structure of matching bell housing that can be better can produce complicated bell housing, improves product quality.

The utility model discloses a casting device sets up to last mould, side forms, the lower mould of polylith concatenation, changes the operation when closing the form removal, and the form removal process can not damage the shaping foundry goods, also corresponding promotion product quality.

The utility model discloses a casting device sets up the psammitolite into upper and lower pellet, all sets up the cavity between the upper and lower pellet, can alleviate the weight of psammitolite greatly.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.

Fig. 1 is a schematic view of a casting apparatus according to one or more embodiments of the present invention;

FIG. 2 is a schematic view of a sand core, ingate, etc. arrangement according to one or more embodiments of the present invention;

in the figure: the mutual spacing or size is exaggerated to show the position of each part, and the schematic diagram is only used for illustration;

the hot-stamping die comprises an upper die 1, a side die 2, a lower die 3, a heat insulation sleeve 4, a sprue 5, a die cavity 6, a riser 7, a casting 8, a sand core 9 and an ingate 10.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, unless the invention expressly state otherwise, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;

for convenience of description, the words "upper", "lower", "left" and "right" in the present application, if any, merely indicate correspondence with the upper, lower, left and right directions of the drawings themselves, and do not limit the structure, but merely facilitate the description of the present invention and simplify the description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

The terms "mounted", "connected", "fixed", etc. in the present invention should be understood in a broad sense, for example, they may be fixedly connected, detachably connected, or integrated; the two components can be connected mechanically or electrically, directly or indirectly through an intermediate medium, or connected internally or in an interaction relationship, and specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As the background art introduces, there is not enough in the prior art, in order to solve above technical problem, the utility model provides a casting device of bell housing.

The utility model discloses a in a typical embodiment, as shown in fig. 1, provide a casting device of bell housing, including last mould 1, side forms 2, lower mould 3, insulation cover 4, runner 5, mould cavity 6, rising head 7, psammitolite 9 and ingate 10.

Lower mould 3 is located the bottom, goes up mould 1 and is located the top, and side forms 2 sets up the polylith, and the polylith side forms sets up between last mould and lower mould, goes up mould, a plurality of side forms, lower mould and encloses into the mould cavity 6 at middle part.

In the embodiment, 3 side dies are arranged, and 3 side dies are sequentially arranged between the upper die and the lower die in an adjacent manner, and can be arranged left and right in the middle parts of the upper die 1 and the lower die 3; when specifically setting up, connect through fixture block and draw-in groove concatenation between the adjacent side forms, and the draw-in groove can play the guide effect at adjacent side form concatenation in-process.

In an alternative embodiment, the side forms and the upper die are fixedly connected by fasteners.

In an optional implementation mode, the stand columns are arranged at the corners of the lower die, correspondingly, the grooves are formed in the bottoms of the side dies, and the grooves of the side dies are connected with the stand columns of the lower die in a clamping mode, so that smooth die assembly and accurate die assembly size can be guaranteed.

The middle part of the lower die 3 is provided with a pouring gate 5, the pouring gate 5 is in a through hole form, and the pouring gate 5 is communicated with a die cavity 6.

In a preferred embodiment, a thermal insulating sleeve 4 is provided at the gate 5 to insulate the gate site.

Set up psammitolite 9 in the mould die cavity 6, in optional embodiment, psammitolite 9 sets up to two upper and lower concatenations and forms, it includes core block and lower core block, core block and lower core block set up relatively, and core block and lower core block set up the cavity in the two relative position all, the cavity of core block and lower core block is linked together, use this structure to make psammitolite weight reduce to 15kg by 56kg, effectively reduce operative employee's intensity of labour, the adoption of tectorial membrane sand has been reduced, production efficiency improves more than one time, simultaneously the effectual pollution that reduces the resin burning to the environment, the purpose that has reached reduction casting cost, the energy saving and has reduced environmental pollution.

In this embodiment, the edges of the upper core block and the lower core block of the sand core are positioned and spliced through the seam allowance, and aluminum liquid can be sealed through the seam allowance, so that the aluminum liquid is prevented from entering the cavity of the sand core.

The inner cavity of the casting product is brought out by the integral sand core, and the sand core is manufactured by a hot core box.

An ingate 10 is also arranged in the die cavity 6, the ingate 10 is communicated with a riser 7, and the ingate is overlapped with most of the flange thickness of the casting 8, so that the casting is stably and effectively fed with the mold filling; and the riser 7 is arranged above the side of the mold cavity, so that the thick part of the upper end of the flywheel shell can be effectively fed.

The top of the upper die 1 is provided with an oil cylinder, the oil cylinder is connected with a pumping rod, the pumping rod extends downwards to the bottom of the upper die, the upper die is provided with a through hole for the pumping rod to pass through, and a blind hole on the outer side of the flywheel shell can be cast by the pumping rod.

In the casting device of the utility model, the sprue is designed into a claw shape, and the ingate is arranged at the thick part of the casting to ensure the feeding effect; to the special structure of bell housing, adopt five division of case mould structural designs: the upper die, the three side dies and the lower die ensure the size of a product, and equipment or an oil cylinder mechanism drives the side dies to open and close the dies.

The utility model discloses a casting device, when casting, adopts low pressure casting process technique, and lower mould 3 is fixed on the low-pressure equipment workstation, and aluminium liquid gets into mould cavity 6 through runner 5 and fills the type casting, is "filling the type stage", again through "step up, pressurize, solidify" stage, the foundry goods is at the shaping of mould cavity.

The utility model discloses a casting device has ensured the product size, and effective control local shrinkage porosity defect problem has improved product quality, has improved the qualification rate, the cost is reduced.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A casting device of a flywheel shell is characterized by comprising an upper die, side dies and a lower die, wherein the side dies are provided with a plurality of side dies which are sequentially arranged between the upper die and the lower die in an abutting mode, and the upper die, the side dies and the lower die enclose a die cavity in the middle; a sand core is arranged in the die cavity and comprises an upper core block and a lower core block, the upper core block and the lower core block are arranged oppositely, and cavities are formed in the positions, opposite to the upper core block and the lower core block, of the upper core block and the lower core block.

2. The casting apparatus for a flywheel housing of claim 1, wherein the corners of the upper core block and the lower core block are positioned and connected by a rabbet.

3. The casting apparatus for flywheel housing of claim 1, wherein the adjacent side forms are connected by means of a block and a slot.

4. The casting apparatus for flywheel housing of claim 1, wherein the side forms and the upper mold are fixedly connected by fasteners.

5. The casting device for the flywheel housing as claimed in claim 1, wherein the lower mold is provided with a pillar at the corner, the bottom of the side mold is provided with a groove, and the groove is connected with the pillar in a clamping manner.

6. The casting apparatus for flywheel casings of claim 1, wherein the mould cavity is further provided with an ingate, and the ingate is communicated with the riser.

7. The casting apparatus for flywheel casings of claim 6, wherein the risers are located laterally above the mold cavities.

8. The casting apparatus for flywheel housing of claim 1, wherein the lower mold has a gate in the middle, and the gate is connected to the mold cavity.

9. The casting apparatus for a flywheel housing as claimed in claim 8, wherein a thermal insulating sleeve is provided at the gate.

10. The casting device for the flywheel housing as claimed in claim 1, wherein the top of the upper mold is provided with an oil cylinder, the oil cylinder is connected with a drawing rod, the upper mold is provided with a through hole for the drawing rod to pass through, and the drawing rod extends downwards to the bottom of the upper mold.

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