CN216828516U

CN216828516U - Aluminum alloy casting equipment

Info

Publication number: CN216828516U
Application number: CN202220325655.6U
Authority: CN
Inventors: 郭守华
Original assignee: Ningbo Xinhao Aluminium Industry Co ltd
Current assignee: Ningbo Xinhao Aluminium Industry Co ltd
Priority date: 2022-02-17
Filing date: 2022-02-17
Publication date: 2022-06-28
Anticipated expiration: 2032-02-17

Abstract

The application discloses aluminum alloy casting equipment belongs to casting equipment technical field, be used for solving integration casting mould drawing of patterns process and make aluminum alloy casting take place to warp and the more problem of casting surface burr easily, including the movable mould, cover half and fixture, fixture's main part is the pinch-off blades, the lower fixed surface of pinch-off blades is connected with the deflector, the guide way has been seted up on the relative surface of cover half and fixture, the guide way is suitable for to agree with the deflector, the last fixed surface of pinch-off blades is connected with the limiting plate, the draw-in groove has been seted up to one side of pinch-off blades subtend movable mould, the draw-in groove is suitable for to agree with the side reason of movable mould, the movable mould is connected with elevating system, fixture is connected with flexible lift link gear. This practicality has reduced the volume that casting liquid permeates to the die joint for the tortuous spatial structure of sub-die parting surface design to reduce the burr on cast member surface, promoted aluminum alloy cast member's surface quality.

Description

Aluminum alloy casting equipment

Technical Field

The application relates to the technical field of casting equipment, in particular to aluminum alloy casting equipment.

Background

To the great aluminum alloy part of volume ratio, need produce through the mode of casting, at present, common casting mode adopts the molding sand to construct the die cavity, though equipment cost is low, the operation is more troublesome, production cycle is long, the output efficiency is low.

The method also adopts an integrated die, but the existing equipment for casting the aluminum alloy has the following defects: for example, although the automatic mold releasing function is not provided or the mold releasing mechanism is provided, the surface of the cast product is indented and deformed when the mold releasing mechanism is operated, and on the other hand, since the automatic mold releasing mechanism is generally disposed inside the cavity, a lot of burrs are formed on the surface of the cast product, which affects the surface appearance of the aluminum alloy cast product. To better avoid this problem, a new type of aluminum alloy casting apparatus is proposed herein.

Disclosure of Invention

The application aims to solve the problem that the aluminum alloy casting is easy to deform and burrs on the surface of the casting are more in the demolding process of the integrated casting mold.

In order to achieve the above purposes, the technical scheme adopted by the application is as follows: this aluminum alloy casting equipment, including movable mould, cover half and fixture, fixture's main part is the pinch-off blades, the lower fixed surface of pinch-off blades is connected with the deflector, the guide way has been seted up on the relative surface of cover half and fixture, the guide way be suitable for with the deflector agrees with, the last fixed surface of pinch-off blades is connected with the limiting plate, the pinch-off blades subtend the draw-in groove has been seted up to one side of movable mould, the draw-in groove be suitable for with the side reason of movable mould agrees with, the movable mould is connected with elevating system for realize the automatic mould action that opens and shuts, fixture is connected with flexible lifting linkage mechanism for real automatic drawing of patterns action.

Preferably, the mold opening and closing device further comprises a stand column and a cross frame, wherein the cross frame is fixedly connected with a mold opening and closing hydraulic cylinder, and a movable end of the mold opening and closing hydraulic cylinder is fixedly connected with a movable mold.

As a preferred, the upper end fixedly connected with link of stand, fixedly connected with lifter on the link, the expansion end of lifter is located the below and the fixedly connected with crane of crossbearer, fixedly connected with telescopic link on the crane, the telescopic link is directional the one end fixedly connected with of movable mould disposes the board, the lower surface of disposing the board is connected with the last fixed surface of limiting plate.

Preferably, the cross frame is fixedly connected with the upright column through a connecting end, the number of the clamping mechanisms is four, and after the four clamping mechanisms are close to each other and clamped, the clamping grooves form a complete circle which is suitable for being meshed with the outer side edge of the movable mold, so that the sealing performance of a casting mold cavity is improved, the permeation of a casting solution to a parting surface is reduced, burrs and bulges on the surface of a casting part are reduced, and the surface smoothness of the casting part is improved.

Preferably, the lower surface of the movable mold is provided with an upper casting cavity, the lower surface of the movable mold is provided with a flange, and the inner wall of the flange is flush with the outer side wall of the upper casting cavity.

Preferably, the upper surface of the movable die is provided with an exhaust hole which penetrates through the upper surface of the movable die and the upper casting cavity, the upper surface of the movable die is provided with a casting opening, and the casting opening is communicated with the upper casting cavity.

Preferably, a sunk groove is formed in the upper surface of the fixed die, a lower casting cavity extending downwards from the sunk groove is formed in the upper surface of the fixed die, and a chamfer matched with the flange is arranged on the upper edge of the outer side wall of the lower casting cavity, so that the sealing performance of the parting surface is further improved.

Preferably, the upper surface of the fixed die is provided with guide grooves, the guide grooves extend from four corners of the fixed die to the axis of the lower casting cavity, the number and the angle of the guide grooves correspond to those of the guide plates, and the guide plates are suitable for sliding along the guide grooves and are used for ensuring the stability of the retracting and releasing actions of the clamping mechanism 5.

Compared with the prior art, the beneficial effect of this application lies in:

(1) the unique converging motion design is carried out on the demoulding mechanism of the casting equipment, so that the demoulding process of the cast part is converted from the demoulding mechanism at the bottom into the clamping mechanism with the separated side surfaces, the gap in the casting mould cavity is reduced, and meanwhile, compared with the bottom demoulding mechanism, the clamping mechanism uniformly acts acting force on the circumferential direction of the cast part in the demoulding process, the cast part is less prone to being scratched and deformed;

(2) through the tortuous spatial structure of the parting surface design of the parting die, the sealing performance of the parting surface is further improved after the casting die is closed, the amount of the casting liquid permeating into the parting surface is reduced, burrs and bulges on the surface of the casting part are reduced, and the surface quality of the aluminum alloy casting part is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the aluminum alloy casting apparatus;

FIG. 2 is a schematic view showing the installation of the holding mechanism of the aluminum alloy casting apparatus;

FIG. 3 is a perspective view of the clamping mechanism of the aluminum alloy casting apparatus;

FIG. 4 is a first schematic view showing the mounting relationship between a cross frame and a movable mold of the aluminum alloy casting apparatus;

FIG. 5 is a second schematic view showing the mounting relationship between the cross frame and the movable mold of the aluminum alloy casting apparatus;

FIG. 6 is a schematic perspective view of a stationary mold of the aluminum alloy casting apparatus.

In the figure: 1. a column; 2. a cross frame; 3. moving the mold; 301. a casting gate; 302. an exhaust hole; 303. an upper casting cavity; 304. A flange; 4. fixing a mold; 401. a guide groove; 402. sinking a groove; 403. a lower casting cavity; 5. a clamping mechanism; 501. a clamping plate; 502. a guide plate; 503. a limiting plate; 504. a card slot; 505. a configuration board; 506. a lifting rod; 507. a lifting frame; 508. a telescopic rod; 6. a mold opening and closing hydraulic cylinder; 12. and a connecting end.

Detailed Description

The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.

In the description of the present application, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be construed as limiting the specific scope of protection of the present application.

It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

The terms "comprises," "comprising," and "having," and any variations thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The aluminum alloy casting equipment shown in fig. 1-6 comprises a movable mold 3, a fixed mold 4 and a clamping mechanism 5, wherein the movable mold 3 and the fixed mold 4 form a main body of a casting mold, the clamping mechanism 5 can realize automatic demolding on the casting body, an upper casting cavity 303 is arranged on the lower surface of the movable mold 3, a flange 304 is arranged on the lower surface of the movable mold 3, the inner wall of the flange 304 is flush with the outer side wall of the upper casting cavity 303, an exhaust hole 302 is arranged on the upper surface of the movable mold 3, the exhaust hole 302 penetrates through the upper surface of the movable mold 3 and the upper casting cavity 303, air in the casting cavity is exhausted in the casting process, a casting port 301 is arranged on the upper surface of the movable mold 3, the casting port 301 is communicated with the upper casting cavity 303, casting melt enters the casting cavity from the casting cavity, a sunken groove 402 is arranged on the upper surface of the fixed mold 4, the sunken groove 402 can be matched with the movable mold 3 to improve the airtightness of the mold cavity and reduce the overflow amount of the casting liquid along a parting surface, the upper surface of the fixed die 4 is provided with a lower casting cavity 403 which is formed by downwards extending the sinking groove 402 and is matched with the upper casting cavity 303 to form a whole casting cavity, the upper edge of the outer side wall of the lower casting cavity 403 is provided with a chamfer matched with the flange 304, the airtightness of the casting cavity is further improved, and due to the design of the structure of the flange 304, the casting liquid is more difficult to permeate into a parting surface with a higher horizontal height, so that the smoothness of the surface of an aluminum alloy casting is improved.

The main body part of the clamping mechanism 5 is a clamping plate 501 used for clamping and fixing the movable mold 3, the lower surface of the clamping plate 501 is fixedly connected with a guide plate 502, one end of the guide plate 502, which points to the casting cavity, can be in close contact with the surface of the aluminum alloy casting piece to provide clamping force when the casting piece is demoulded, the surface of the fixed mold 4, which is opposite to the clamping mechanism 5, is provided with a guide groove 401, the guide groove 401 is suitable for being matched with the guide plate 502, the guide plate and the guide plate form a sliding pair, the stability of the clamping mechanism 5 in telescopic motion can be improved, the guide groove 401 extends from four corners of the fixed mold 4 to the axis of the lower casting cavity 403 and has central symmetry, the number and the angle of the guide groove 401 correspond to the guide plate 502, the guide plate 502 is suitable for sliding along the guide groove 401, so that the retracting and releasing actions of the clamping mechanism 5 are more stable, the surface of the casting piece is not easy to scratch, the upper surface of the clamping plate 501 is fixedly connected with a limiting plate 503, the movement of the movable mold 3 can be limited when the clamping mechanisms 5 are in a clamping state, so that the stability of the casting process is improved to a certain extent, the clamping grooves 504 are formed in one side, opposite to the movable mold 3, of the clamping plate 501, the clamping grooves 504 are suitable for being matched with the side edge of the movable mold 3, the shaking of the movable mold 3 is limited, the safety and the stability of the casting process are further improved, the number of the clamping mechanisms 5 is four, the clamping grooves 504 form a whole circle and are suitable for being meshed with the outer side edge of the movable mold 3 after the four clamping mechanisms 5 are close to each other and clamped, and the anti-seepage capability of the parting surface can be further improved by the structure.

The movable mold 3 is connected with a lifting mechanism, so that the movable mold 3 has the functions of automatically closing and separating the mold, the clamping mechanism 5 is connected with a telescopic lifting linkage mechanism, so that the clamping mechanism 5 has the function of completing the automatic retraction and extension action, the aluminum alloy casting equipment also comprises an upright post 1 and a cross frame 2, the cross frame 2 is used as a frame structure of the aluminum alloy casting equipment, a mold opening and closing hydraulic cylinder 6 is fixedly connected with the cross frame 2, the movable end of the mold opening and closing hydraulic cylinder 6 is fixedly connected with the movable mold 3, the mold opening and closing hydraulic cylinder 6 is a hydraulic cylinder capable of driving the movable mold 3 with larger mass to complete the up-and-down movement through the hydraulic action, so as to realize the mold opening and closing action, the upper end of the upright post 1 is fixedly connected with a connecting end 12 which is mainly used for connecting the upright post 1 and the cross frame 2, a lifting rod 506 is fixedly connected with the connecting end 12 and used for driving the clamping mechanism 5 to realize the lifting action, the movable end of the lifting rod 506 is positioned below the cross frame 2 and is fixedly connected with a lifting frame 507, the lifting frame 507 is fixedly connected with a telescopic rod 508 for driving the clamping mechanism 5 to realize retraction and release actions, one end of the telescopic rod 508 pointing to the movable mold 3 is fixedly connected with a configuration plate 505 for installing the clamping mechanism 5, the lower surface of the configuration plate 505 is fixedly connected with the upper surface of the limiting plate 503, and the cross frame 2 is fixedly connected with the upright post 1 through a connecting end 12 to form an auxiliary frame of the casting equipment.

The working principle of the aluminum alloy casting equipment is as follows: the initial state of the casting equipment is a state that a movable mold 3, a fixed mold 4 and a clamping mechanism 5 shown in fig. 1 are separated, when the casting equipment needs to work, the movable mold 3 can move downwards under the driving of a mold opening and closing hydraulic cylinder 6 until the movable mold is matched with a sink groove 402, then the clamping mechanism 5 moves downwards under the driving of a lifting rod 506 until a guide plate 502 is completely matched with the guide groove 401, the clamping mechanism 5 approaches to the movable mold 3 under the driving of a telescopic rod 508 and fixes the movable mold 3 in the sink groove 402 of the fixed mold 4 through a clamping groove 504 and a limiting plate 503, and mold closing can be completed, so that the movable mold 3 and the fixed mold 4 can form a stable casting mold, molten liquid can be cast into the mold, the amount of the cast liquid permeating into a parting surface is small, and burrs and bulges on the surface of a formed part can be reduced; when the cast part is cooled and formed, the clamping mechanism 5 is firstly released to slide in the direction far away from the movable mold 3 under the drive of the telescopic rod 508 until the limiting plate 503 is separated from the upper surface of the movable mold 3, then the movable mold 3 can be separated from the sink 402 under the drive of the mold opening and closing hydraulic cylinder 6, due to the thermal expansion and cold contraction effect of the metal part, the cast part can not generate pressure with the inner wall of the casting cavity, so the cast part is separated from the ascending movable mold 3 under the action of the gravity of the cast part and is left in the lower casting cavity 403 of the fixed mold 4, when the movable mold 3 moves up to the upper limiting position, the cast part can be more fully cooled, the surface hardness is higher, after the four clamping mechanisms are tightened again to clamp the surface of the cast part, one end of the guide plate 502 pointing to the cast part is not easy to scratch and extrude and deform the surface of the cast part, and finally the cast part is separated from the lower casting cavity 403 of the fixed mold 4 under the drive of the lifting rod 506 along with the clamping mechanism 5 to complete the automatic demolding action of the aluminum alloy cast part .

The foregoing has described the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and these changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.

Claims

1. An aluminum alloy casting equipment which characterized in that: including movable mould, cover half and fixture, fixture's main part is the pinch-off blades, the lower fixed surface of pinch-off blades is connected with the deflector, the guide way has been seted up on the relative surface of cover half and fixture, the guide way be suitable for with the deflector agrees with, the last fixed surface of pinch-off blades is connected with the limiting plate, the pinch-off blades subtend the draw-in groove has been seted up to one side of movable mould, the draw-in groove be suitable for with the side reason of movable mould agrees with, the movable mould is connected with elevating system, fixture is connected with flexible lift link gear.

2. The aluminum alloy casting apparatus of claim 1, wherein: the die opening and closing hydraulic cylinder is fixedly connected to the cross frame, and the movable end of the die opening and closing hydraulic cylinder is fixedly connected with the movable die.

3. The aluminum alloy casting apparatus of claim 2, wherein: the utility model discloses a safety protection device for a railway vehicle, including crossbearer, crossbeam, telescopic link, the upper end fixedly connected with link of stand, fixedly connected with lifter on the link, the expansion end of lifter is located the below and the fixedly connected with crane of crossbearer, fixedly connected with telescopic link on the crane, the telescopic link is directional the one end fixedly connected with configuration board of movable mould, the lower surface of configuration board is connected with the last fixed surface of limiting plate.

4. The aluminum alloy casting apparatus of claim 3, wherein: the transverse frame is fixedly connected with the upright post through a connecting end, the number of the clamping mechanisms is four, and after the four clamping mechanisms are close to each other and clamped, the clamping grooves form a whole circle and are suitable for being meshed with the outer side edge of the movable die.

5. The aluminum alloy casting apparatus of claim 1, wherein: the lower surface of the movable mould is provided with an upper casting cavity, the lower surface of the movable mould is provided with a flange, and the inner wall of the flange is flush with the outer side wall of the upper casting cavity.

6. The aluminum alloy casting apparatus of claim 5, wherein: the upper surface of movable mould has seted up the exhaust hole, the exhaust hole link up the upper surface and the last casting chamber of movable mould, the upper surface of movable mould is provided with the sprue gate, the sprue gate with go up the casting chamber intercommunication.

7. The aluminum alloy casting apparatus of claim 5, wherein: the upper surface of the fixed die is provided with a sinking groove, the upper surface of the fixed die is provided with a lower casting cavity extending downwards from the sinking groove, and the upper edge of the outer side wall of the lower casting cavity is provided with a chamfer matched with the flange.

8. The aluminum alloy casting apparatus of claim 7, wherein: the guide grooves extend from four corners of the fixed die to the axis of the lower casting cavity, the number and the angle of the guide grooves correspond to those of the guide plates, and the guide plates are suitable for sliding along the guide grooves.