CN203140688U - Aluminum alloy gravity casting machine - Google Patents

Abstract

The utility model relates to an aluminum alloy gravity casting machine, which is mainly characterized in that a first oil hydraulic cylinder is arranged above an upper fixed seat on a frame, a push rod of the first oil hydraulic cylinder downwards penetrates through the upper fixed seat and is fixedly arranged on an auxiliary pressing plate, a plurality of pressing surfaces are convexly arranged on the bottom surface of the auxiliary pressing plate, and the plurality of pressing surfaces of the auxiliary pressing plate are respectively attached to the middle parts of a plurality of equal parts of a movable seat plate, so that the plurality of pressing surfaces can be evenly distributed on the movable seat plate; the arrangement of the auxiliary pressure plate can enable the thrust of the first oil hydraulic cylinder to be evenly distributed on the movable seat plate, the sealing degree of the mold when being closed can be increased, the qualification rate of products is improved, and the first oil hydraulic cylinder is actuated downwards, so that the space for arranging and using machines can be reduced.

Description

Aluminum Alloy Gravity Casting Machine

technical field

The utility model relates to an aluminum alloy gravity casting machine, in particular to an auxiliary pressing plate on the movable seat plate, which can make the force point of the movable seat plate extremely even when pressing down, and increase the closeness of the mold when the mold is closed. Improve the qualification rate of products.

Background technique

Existing gravity casting machine 1, referring also to shown in Figure 1, is mainly provided with support 10, and this support 10 is provided with frame 11, and this frame 11 is provided with an upper fixed seat 12 and lower fixed seat 13, and this A first hydraulic cylinder 14 is arranged above the upper fixing seat 12, and a connecting plate 141 is provided at the outer end of the push rod 140 of the first hydraulic cylinder 14, and two auxiliary push rods 142 are arranged on the connecting plate 141. An auxiliary push rod 142 penetrates downwards on the upper fixed seat 12 and is fixed on a movable seat plate 15. The base 10 is provided with a second hydraulic cylinder 16, and the push rod of the second hydraulic cylinder 16 Rod 160 penetrates upwards on the lower fixing seat 13 and is fixed on a positioning seat plate 17. Several guide posts 18 are arranged between the upper fixing seat 12 and the lower fixing seat 13. The several guide posts 18 And pass through the movable seat plate 15 and the positioning seat plate 17, an upper mold 190 is assembled at the bottom of the movable seat plate 15, a lower mold 191 is assembled on the top of the positioning seat plate 17, and the upper mold 190 and the lower mold 191 are assembled. The molds 191 are set corresponding to each other, so that the aluminum alloy melt can be poured into the mold cavity of the mold for casting. In this way, it is the structure of an aluminum alloy gravity casting machine 1. However, the first hydraulic cylinder of the existing gravity casting machine 1 14 must rely on the design of a connecting plate 141 and two auxiliary push rods 142 to move the movable seat plate 15 downwards, and when the two auxiliary push rods 142 move the movable seat plate 15, their force points are concentrated on the movable seat plate 15 is located around the second auxiliary push rod 142. If it is used on a large mold, it is often because the force applied by the auxiliary push rod 142 to the movable seat plate 15 cannot be averaged. The tightness of the aluminum alloy is not good, so that the molten aluminum alloy flows out from the mold, resulting in a high failure rate of the cast product, and when the push rod 140 of the first hydraulic cylinder 14 is pushed outward, the connecting plate 141 stretches upward. Therefore, the top of the gravity casting machine 1 must reserve the action space when the push rod 140 of the first hydraulic cylinder 14 rises, and a large space must be provided for the placement of the machine tool.

Contents of the invention

The utility model can effectively solve the problems existing in the existing aluminum alloy gravity casting machine, such as uneven application of force during pressing, poor mold closeness, high product failure rate, and large space for placement and use of machines and tools. .

The purpose of this utility model is to provide an aluminum alloy gravity casting machine, which can average the force point when the movable seat plate is pressed down, so as to increase the closeness of the upper and lower molds, improve the qualified rate of products, and reduce the number of tools The space used for placement.

For realizing above-mentioned object, the technical scheme that the utility model adopts is:

An aluminum alloy gravity casting machine is provided with a frame, the frame is provided with a frame, the frame is provided with an upper fixing seat and a lower fixing seat, and a first hydraulic cylinder is arranged above the upper fixing seat, the There is a second hydraulic cylinder on the machine base, the push rod of the second hydraulic cylinder penetrates upwards on the lower fixing seat, and is fixed on a positioning seat plate, the upper fixing seat and the lower fixing seat There are several guide pillars between them, and the several guide pillars are installed on a movable seat plate and the positioning seat plate. An upper mold is assembled on the bottom of the movable seat plate, and a lower mold is assembled on the upper part of the positioning seat plate. The mold and the lower mold are set corresponding to each other;

It is characterized in that: the push rod of the first hydraulic cylinder penetrates downwards on the upper fixing seat and is fixed on an auxiliary pressing plate. The bottom surface of the auxiliary pressing plate is protruded with several pressing surfaces. The number of auxiliary pressing plates is The pressing surfaces are respectively attached to several middle parts of the movable seat plate, so that the pressing surfaces can be evenly distributed on the movable seat plate.

In the aluminum alloy gravity casting machine, several auxiliary guide rods are arranged between the lower fixing seat and the positioning seat plate.

Compared with the prior art, the utility model adopting the above-mentioned technical solution has the advantages of:

The aluminum alloy gravity casting machine of the utility model can make the thrust of the first hydraulic cylinder evenly distributed on the movable seat plate by virtue of the setting of the auxiliary pressure plate, which can increase the closeness of the mold when the mold is closed, and improve the qualified rate of the product. And the first oil pressure cylinder moves downwards, which can reduce the space used for placing the implements.

In the aluminum alloy gravity casting machine of the utility model, several auxiliary guide rods are arranged between the lower fixing seat and the positioning seat plate, so that the positioning seat plate can be more stable when moving upward.

Description of drawings

Shown in Fig. 1 is the use schematic diagram of existing aluminum alloy gravity casting machine;

Shown in Fig. 2 is the plan view of the utility model embodiment;

Figure 3 is a perspective view of the auxiliary pressing plate of the embodiment of the present invention.

Explanation of reference signs: 1 gravity casting machine; 10 machine base; 11 frame; 12 upper fixed seat; 13 lower fixed seat; Seat plate; 16 second hydraulic cylinder; 160 push rod; 17 positioning seat plate; 18 guide column; 190 upper mold; 191 lower mold; 20 machine base; 21 frame; Auxiliary guide rod; 3 first hydraulic cylinder; 30 push rod; 4 auxiliary pressure plate; 40 pressing surface; 41 fixed component; 5 movable seat plate; 6 second hydraulic cylinder; 8 guide pillars; 90 upper molds; 91 lower molds.

Detailed ways

Relevant utility model is for reaching above-mentioned purpose of use and effect, and the technical means adopted hereby enumerates preferred feasible embodiments, and cooperates as shown in the drawings, and is described in detail as follows:

Embodiment of the present utility model, referring to Fig. 2, shown in Fig. 3, mainly is provided with a support 20, and this support 20 is provided with frame 21, and this frame 21 is provided with an upper fixed seat 22 and lower fixed seat 23. A first hydraulic cylinder 3 is arranged on the top of the upper fixing seat 22, and the push rod 30 of the first hydraulic cylinder 3 penetrates downwards on the upper fixing seat 22 and is fixed on an auxiliary pressure plate 4. , the four end corners of the bottom surface of the auxiliary pressing plate 4 are protruded with a pressing surface 40 (as shown in Figure 3 ), and the auxiliary pressing plate 4 is fixed on a movable seat plate 5 by means of several fixing elements 41. The auxiliary pressing plate The four pressing surfaces 40 of 4 are respectively attached to the middle parts of the quarters of the movable seat plate 5, and a second hydraulic cylinder 6 is arranged on the base 20, and the second hydraulic cylinder 6 The push rod 60 of the push rod is upwardly set on the lower fixing seat 23, and is fixed on a positioning seat plate 7. Several auxiliary guide rods 24 are arranged between the lower fixing seat 23 and the positioning seat plate 7. The upper fixing seat 22 and the lower fixed seat 23 are provided with several guide pillars 8, and the several guide pillars 8 are pierced through the movable seat plate 5 and the positioning seat plate 7, and an upper mold is assembled at the bottom of the movable seat plate 5 90, the upper part of the positioning seat plate 7 is assembled with a lower mold 91, and the upper mold 90 and the lower mold 91 are arranged corresponding to each other, so that it is an aluminum alloy gravity casting machine structure.

When in use, please refer to Figure 2 to start the action of the first hydraulic cylinder 3 so that its push rod 30 directly pushes down the auxiliary pressure plate 4 to move down. The pressing surface 40 can evenly exert force on each middle part of the four equal parts of the movable seat plate 5, so that when the first hydraulic cylinder 3 is pressed down, each pressing surface 40 of the auxiliary pressure plate 4 can apply force evenly. On the movable seat plate 5, the movable seat plate 5 presses down the upper mold 90 and closes it on the lower mold 91. After the upper mold 90 and the lower mold 91 are sealed, the aluminum alloy melt is injected into the Casting is carried out in the die cavity of this mould, like this, by virtue of being provided with an auxiliary pressure plate 4 above this movable seat plate 5, the point of application of force when this movable seat plate 5 is pressed down can be made extremely even, can increase upper mold 90 and lower mold 91 The tightness when closed is excellent, and the aluminum alloy melt will not flow out, which can improve the product qualification rate, and the push rod 30 of the first hydraulic cylinder 3 moves downward, which can save the space for placing and using the machine tool .

The above description is only illustrative, rather than restrictive, of the present utility model. Those of ordinary skill in the art understand that many modifications, changes or equivalents can be made without departing from the spirit and scope defined in the claims. But all will fall within the protection scope of the present utility model.

Claims (2)

1. An aluminum alloy gravity casting machine is provided with a machine base, the machine base is provided with a frame, the frame is provided with an upper fixing seat and a lower fixing seat, and a first hydraulic cylinder is arranged above the upper fixing seat , the machine base is provided with a second hydraulic cylinder, the push rod of the second hydraulic cylinder penetrates upwards on the lower fixing seat, and is fixed on a positioning seat plate, the upper fixing seat and the lower fixing seat There are several guide pillars between the seats, and the several guide pillars are installed on a movable seat plate and the positioning seat plate. An upper mold is assembled on the bottom of the movable seat plate, and a lower mold is assembled on the upper part of the positioning seat plate. The upper mold and the lower mold are set corresponding to each other; It is characterized in that: the push rod of the first hydraulic cylinder penetrates downwards on the upper fixing seat and is fixed on an auxiliary pressing plate. The bottom surface of the auxiliary pressing plate is protruded with several pressing surfaces. The number of auxiliary pressing plates is The pressing surfaces are respectively attached to several middle parts of the movable seat plate, so that the pressing surfaces can be evenly distributed on the movable seat plate. 2. The aluminum alloy gravity casting machine according to claim 1, characterized in that: several auxiliary guide rods are arranged between the lower fixing seat and the positioning seat plate.

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