阅读说明：本技术 一种高可靠性的铝合金重力铸造装置及其使用方法 (High-reliability aluminum alloy gravity casting device and application method thereof ) 是由 曾利平 于 2021-06-30 设计创作，主要内容包括：本发明公开了一种高可靠性的铝合金重力铸造装置及其使用方法,涉及重力铸造装置技术领域；为了兼顾模具的保温和降温能力；该装置包括第一支撑架,所述第一支撑架两侧内壁通过支撑轴转动连接有两个第二支撑架,两个第二支撑架顶部外壁固定有同一个下模座,所述下模座上方设置有上模座,所述下模座两侧外壁通过固定架安装有第一液压缸,所述第一液压缸的输出端固定于上模座顶部外壁；该方法包括如下步骤：使用者控制第一液压缸工作,使上模座和下模座合模。本发明通过设置第一传热弧板、第二传热弧板等结构,能够在铸造时,利用第一传热弧板内的加热棒工作,通过第一传热弧板将热量传递至传热座上,进而传递至下模座内,以保障铸造质量。(The invention discloses a high-reliability aluminum alloy gravity casting device and a using method thereof, relating to the technical field of gravity casting devices; in order to take account of the heat preservation and cooling capacity of the mould; the device comprises a first support frame, wherein two second support frames are rotatably connected to the inner walls of two sides of the first support frame through support shafts, the outer walls of the tops of the two second support frames are fixedly provided with the same lower die base, an upper die base is arranged above the lower die base, first hydraulic cylinders are mounted on the outer walls of two sides of the lower die base through fixing frames, and the output ends of the first hydraulic cylinders are fixed to the outer wall of the top of the upper die base; the method comprises the following steps: the user controls the first hydraulic cylinder to work, so that the upper die base and the lower die base are matched. According to the invention, by arranging the first heat transfer arc plate, the second heat transfer arc plate and other structures, the heating rod in the first heat transfer arc plate can be used for working during casting, heat is transferred to the heat transfer seat through the first heat transfer arc plate and then transferred to the lower die seat, and thus the casting quality is ensured.)

1. The high-reliability aluminum alloy gravity casting device comprises a first support frame (1) and is characterized in that the inner walls of two sides of the first support frame (1) are rotatably connected with two second support frames (26) through a support shaft (2), the outer walls of the tops of the two second support frames (26) are fixed with a same lower die holder (3), an upper die holder (7) is arranged above the lower die holder (3), the outer walls of two sides of the lower die holder (3) are provided with first hydraulic cylinders (6) through fixing frames (5), the output ends of the first hydraulic cylinders (6) are fixed on the outer wall of the top of the upper die holder (7), the outer wall of one side of the lower die holder (3) is connected with a feed hopper (4) through a connecting pipe (19), and the feed hopper (4) is communicated with the inside of the lower die holder (3) through the connecting pipe (19); the outer wall of the bottom of the lower die holder (3) is provided with a heat transfer seat (13), and a heat preservation mechanism and a cooling mechanism are arranged below the lower die holder (3); the heat preservation mechanism comprises two first heat transfer arc plates (22), the cooling mechanism comprises two second heat transfer arc plates (23), and connecting rods (21) are fixed between the two first heat transfer arc plates (22) and between the two second heat transfer arc plates (23); first heat transfer arc board (22) are installed in die holder (3) below through first mounting bracket (30), and heat transfer seat (13) one side outer wall be with the cambered surface structure of first heat transfer arc board (22) and second heat transfer arc board (23) looks adaptation, heat transfer seat (13) and first heat transfer arc board (22) or second heat transfer arc board (23) contact.

2. The aluminum alloy gravity casting device with high reliability as claimed in claim 1, wherein the outer walls of two sides of the first heat transfer arc plate (22) are provided with evenly distributed heating rods (27) through mounting seats (28), and the heating rods (27) are positioned inside the first heat transfer arc plate (22); a circulating cooling pipe (24) is arranged in the second heat transfer arc plate (23), and two ends of the circulating cooling pipe (24) are connected with the same water cooling tank (11); the second heat transfer arc plate (23) is fixed on the outer wall of the top of the water cooling tank (11) through a second mounting frame (29); the central points of the first heat transfer arc plate (22) and the second heat transfer arc plate (23) are superposed with the central axis of the rotating seat (14); and a driving part for controlling the fixed frame (5) to rotate is arranged on one side of the fixed frame (5).

3. The aluminum alloy gravity casting device with high reliability as claimed in claim 2, wherein the driving part comprises a rotating seat (14) and a second hydraulic cylinder (9), a hinged seat is installed on one side outer wall of the second hydraulic cylinder (9), the rotating seat (14) is fixed on the output end of the second hydraulic cylinder (9), and the rotating seat (14) is rotatably connected to the circumferential outer wall of the connecting column (18).

4. A high reliability aluminum alloy gravity casting device according to claim 3, wherein the same thermal insulation plate (25) is installed on the inner wall of both sides of the first mounting frame (30), and the thermal insulation plate (25) is located between the first heat transfer arc plate (22) and the second heat transfer arc plate (23).

5. The aluminum alloy gravity casting device with high reliability as set forth in claim 4, wherein a third hydraulic cylinder (12) is fixed to the outer wall of the bottom of the lower die holder (3), the output end of the third hydraulic cylinder (12) extends into the lower die holder (3), and the output end of the third hydraulic cylinder (12) is matched with the inner wall of the bottom of the lower die holder (3).

6. The aluminum alloy gravity casting device with high reliability as set forth in claim 5, characterized in that a guiding sliding table (8) is arranged below one side of the lower die holder (3), and a collecting box (10) is fixed on the outer wall of one side of the guiding sliding table (8) far away from the lower die holder (3).

7. The aluminum alloy gravity casting device with high reliability as set forth in claim 6, wherein the outer wall of the bottom of the upper die holder (7) is fixed with guide inserting columns (15) which are uniformly distributed, and the outer wall of the top of the lower die holder (3) is provided with guide inserting holes (17) which are matched with the guide inserting columns (15); the upper die holder (7) is connected in a sliding way in a guide jack (17) of the lower die holder (3) through a guide inserting column (15).

8. A high reliability aluminium alloy gravity casting device according to claim 7, characterized in that the guiding studs (15) are hexagonal prism shaped structures, the size of the bottom of the guiding studs (15) decreasing in size in the direction above vertical downwards.

9. The aluminum alloy gravity casting device with high reliability as claimed in claim 8, wherein the outer wall of the bottom end of the guiding insertion column (15) is provided with a first conducting strip (16), the inner wall of the bottom of the second conducting strip (20) is provided with a second conducting strip (20) matched with the first conducting strip (16), and the first conducting strip (16) and the second conducting strip (20) are connected into the control circuit of the second hydraulic cylinder (9).

10. The use method of the aluminum alloy gravity casting device with high reliability is characterized by comprising the following steps:

s1: a user controls the first hydraulic cylinder (6) to work, so that the upper die base (7) and the lower die base (3) are matched;

s2: controlling the heating rod (27) to work, and preserving the heat of the lower die holder (3);

s3: pouring casting metal liquid into the casting furnace from a charging hopper (4) gradually;

s4: the second hydraulic cylinder (9) is controlled to work, so that the fixing frame (5) drives the lower die holder (3) and the upper die holder (7) to rotate and deflect, the lower die holder (3) and the upper die holder (7) are filled with the metal liquid, and the heating rod (27) is controlled to stop working;

s5: after standing for a period of time, controlling the fixed frame (5) to continue rotating, so that the heat transfer base (13) is separated from the first heat transfer arc plate (22) and is contacted with the second heat transfer arc plate (23);

s6: controlling the water cooling box (11) to work, and cooling the lower die holder (3) by utilizing a circulating cooling pipe (24) and a second heat transfer arc plate (23);

s7: the first hydraulic cylinder (6) is controlled to work, and the upper die holder (7) is separated from the lower die holder (3);

s8: controlling a third hydraulic cylinder (12) to work for demoulding;

s9: and controlling the mechanisms to reset.

Technical Field

The invention relates to the technical field of gravity casting devices, in particular to a high-reliability aluminum alloy gravity casting device and a using method thereof.

Background

Gravity casting refers to a process of injecting molten metal into a casting mold under the action of earth gravity, and in the production of aluminum alloy products or parts, a gravity casting mode is usually adopted for processing and preparation; however, in the process of adding the aluminum alloy metal liquid, the temperature of the die is controlled within a certain range, so that the phenomenon that the casting process is influenced due to the fact that the aluminum alloy metal liquid is cooled too fast is avoided, and the temperature of the die is reduced to a certain range after the aluminum alloy metal liquid is poured for a certain time, so that the forming is facilitated; although the existing aluminum alloy gravity casting device can meet certain use requirements, the control mold which cannot be well used for heat preservation and cooling needs to be improved.

Through retrieval, a patent with the Chinese patent application number of CN201920988428.X discloses a gravity casting device for an electronic communication pendant, which comprises a lower casting mold body, an upper casting mold body and a hydraulic telescopic cylinder for pushing the lower casting mold body and the upper casting mold body to mold; the lower casting mold body comprises a lower mold base with a casting mold cavity, a water tank bottom cavity located right below the casting mold cavity is formed in the bottom of the lower mold base, and a water tank side cavity located on the outer side of the casting mold cavity and communicated with the end part of the water tank bottom cavity is formed in the side part of the lower mold base; the water tank is characterized in that a transverse stirring mechanism is arranged in the water tank bottom cavity, and a vertical stirring mechanism linked with the transverse stirring mechanism is arranged in the water tank side cavity. The gravity casting apparatus of the above patent has the following disadvantages: although certain use requirements can be met, the mold can be rapidly cooled, the heat preservation capability of the mold cannot be well taken into consideration, and therefore improvement is needed.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a high-reliability aluminum alloy gravity casting device and a using method thereof.

In order to achieve the purpose, the invention adopts the following technical scheme:

a high-reliability aluminum alloy gravity casting device comprises a first support frame, wherein two second support frames are rotatably connected to the inner walls of two sides of the first support frame through support shafts, the outer walls of the tops of the two second support frames are fixedly provided with a same lower die base, an upper die base is arranged above the lower die base, first hydraulic cylinders are arranged on the outer walls of two sides of the lower die base through fixing frames, the output end of each first hydraulic cylinder is fixed to the outer wall of the top of the upper die base, the outer wall of one side of the lower die base is connected with a feeding hopper through a connecting pipe, and the feeding hopper is communicated with the interior of the lower die base through the connecting pipe; the outer wall of the bottom of the lower die base is provided with a heat transfer base, and a heat preservation mechanism and a cooling mechanism are arranged below the lower die base; the heat preservation mechanism comprises two first heat transfer arc plates, the cooling mechanism comprises two second heat transfer arc plates, and connecting rods are fixed between the two first heat transfer arc plates and between the two second heat transfer arc plates; the first heat transfer arc plate is installed below the lower die base through the first installation frame, the outer wall of one side of the heat transfer base is of an arc surface structure matched with the first heat transfer arc plate and the second heat transfer arc plate, and the heat transfer base is in contact with the first heat transfer arc plate or the second heat transfer arc plate.

Preferably: the outer walls of the two sides of the first heat transfer arc plate are provided with heating rods which are uniformly distributed through mounting seats, and the heating rods are positioned inside the first heat transfer arc plate; a circulating cooling pipe is arranged in the second heat transfer arc plate, and two ends of the circulating cooling pipe are connected with the same water cooling tank; the second heat transfer arc plate is fixed on the outer wall of the top of the water cooling box through a second mounting frame; the central points of the first heat transfer arc plate and the second heat transfer arc plate are superposed with the central axis of the rotating seat; and a driving part for controlling the fixed frame to rotate is arranged on one side of the fixed frame.

Further: the driving part comprises a rotating seat and a second hydraulic cylinder, a hinged seat is installed on the outer wall of one side of the second hydraulic cylinder, the rotating seat is fixed at the output end of the second hydraulic cylinder, and the rotating seat is rotatably connected to the outer wall of the circumference of the connecting column.

Further preferred is: the inner walls of two sides of the first mounting frame are provided with the same heat insulation plate, and the heat insulation plate is positioned between the first heat transfer arc plate and the second heat transfer arc plate.

As a preferable aspect of the present invention: and a third hydraulic cylinder is fixed on the outer wall of the bottom of the lower die holder, the output end of the third hydraulic cylinder extends into the lower die holder, and the output end of the third hydraulic cylinder is matched with the inner wall of the bottom of the lower die holder.

Further preferred as the invention: a guide sliding table is arranged below one side of the lower die base, and a collecting box is fixed on the outer wall of one side, away from the lower die base, of the guide sliding table.

As a still further scheme of the invention: the outer wall of the bottom of the upper die base is fixedly provided with guide inserting columns which are uniformly distributed, and the outer wall of the top of the lower die base is provided with guide inserting holes matched with the guide inserting columns; the upper die base is connected in the guide insertion hole of the lower die base in a sliding manner through the guide insertion column.

On the basis of the scheme: the guiding inserting columns are of hexagonal prism structures, and the sizes of the bottoms of the guiding inserting columns are gradually reduced in a direction exceeding the vertical direction.

On the basis of the foregoing scheme, it is preferable that: the outer wall of the bottom end of the guide inserting column is provided with a first conducting strip, the inner wall of the bottom of the second conducting strip is provided with a second conducting strip matched with the first conducting strip, and the first conducting strip and the second conducting strip are connected into a control circuit of the second hydraulic cylinder.

The use method of the aluminum alloy gravity casting device with high reliability comprises the following steps:

s1: a user controls the first hydraulic cylinder to work, so that the upper die base and the lower die base are matched;

s2: controlling the heating rod to work, and preserving the heat of the lower die holder;

s3: pouring casting metal liquid from a charging hopper gradually;

s4: controlling the second hydraulic cylinder to work, so that the fixing frame drives the lower die holder and the upper die holder to rotate and deflect, so that the lower die holder and the upper die holder are filled with the molten metal, and the heating rod is controlled to stop working;

s5: after standing for a period of time, controlling the fixed frame to continue rotating, so that the heat transfer seat is separated from the first heat transfer arc plate and is contacted with the second heat transfer arc plate;

s6: controlling the water cooling box to work, and cooling the lower die holder by utilizing the circulating cooling pipe and the second heat transfer arc plate;

s7: controlling the first hydraulic cylinder to work, and separating the upper die base from the lower die base;

s8: controlling a third hydraulic cylinder to work for demoulding;

s9: and controlling the mechanisms to reset.

The invention has the beneficial effects that:

1. according to the invention, through arranging the first heat transfer arc plate, the second heat transfer arc plate and other structures, the heating rod in the first heat transfer arc plate can be used for working during casting, heat is transferred to the heat transfer seat through the first heat transfer arc plate and then transferred into the lower die holder, so that the casting quality is ensured, when the fixed frame is controlled to rotate, the heat transfer seat slides on the surface of the first heat transfer arc plate, the heat transfer seat is separated from the first heat transfer arc plate and is contacted with the second heat transfer arc plate along with the increase of the rotation angle, at the moment, the lower die holder reaches the demolding position, the water cooling box works, the circulating cooling pipe and the second heat transfer arc plate are used for cooling the heat transfer seat, and further, the aluminum alloy part in the lower die holder is cooled.

2. By arranging the connecting column, the rotating seat and other structures, the deflection of the fixing frame can be controlled by the work of the second hydraulic cylinder, so that the lower die seat and the upper die seat are filled with casting molten metal to guarantee the casting quality; through setting up the heat insulating plate, can separate the temperature to first heat transfer arc board and second heat transfer arc board, avoid its interact, promote the reliability.

3. By arranging the third hydraulic cylinder, after gravity casting is finished, the third hydraulic cylinder can work to eject the processed aluminum alloy part out of the lower die holder, so that the practicability is improved; through setting up direction slip table and collecting box, can accept the direction to the aluminium alloy part that processes when the unloading, make it fall into in the collecting box, promoted the practicality.

4. By arranging the guide inserting columns and the guide inserting holes, the guide can be performed when the upper die base and the lower die base are assembled, so that the stability and the firmness are improved; through setting up the direction and inserting the super vertical downward direction of post bottom size and reduce gradually, guide direction that can be better is inserted the post and is inserted in the direction jack, has promoted the reliability.

5. Through setting up first conducting strip and second conducting strip, can make first conducting strip contact and switch on and the second circuit between the conducting strip when upper die base and die holder compound die to make the second pneumatic cylinder can work, when effectively having avoided upper die base and die holder to fail reliable compound die, still control the condition of die holder and upper die base slope.

Drawings

FIG. 1 is a schematic structural diagram of an aluminum alloy gravity casting apparatus with high reliability according to the present invention;

FIG. 2 is a schematic structural diagram of the other side of the aluminum alloy gravity casting device with high reliability, which is provided by the invention;

FIG. 3 is a schematic structural diagram of an upper die holder and a lower die holder of the high-reliability aluminum alloy gravity casting device provided by the invention;

FIG. 4 is a schematic sectional structural view of an upper die base and a lower die base of the high-reliability aluminum alloy gravity casting device provided by the invention;

FIG. 5 is a schematic structural view of the bottom of a lower die holder of the high-reliability aluminum alloy gravity casting device provided by the invention;

fig. 6 is a schematic structural diagram of a first heat transfer arc plate and a second heat transfer arc plate of the aluminum alloy gravity casting device with high reliability.

In the figure: 1 first support frame, 2 back shafts, 3 die holders, 4 loading hoppers, 5 fixed frames, 6 first hydraulic cylinders, 7 upper die holders, 8 direction slip tables, 9 second hydraulic cylinders, 10 collecting boxes, 11 water-cooling boxes, 12 third hydraulic cylinders, 13 heat transfer seats, 14 rotation seats, 15 direction inserted columns, 16 first conducting strips, 17 direction inserted holes, 18 connecting columns, 19 connecting pipes, 20 second conducting strips, 21 connecting rods, 22 first heat transfer arc plates, 23 second heat transfer arc plates, 24 circulative cooling pipes, 25 heat insulation plates, 26 second support frames, 27 heating rods, 28 mounting seats, 29 second mounting frames, 30 first mounting frames.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Example 1:

a high-reliability aluminum alloy gravity casting device is shown in figures 1-6 and comprises a first support frame 1, wherein two second support frames 26 are rotatably connected to the inner walls of two sides of the first support frame 1 through support shafts 2, the outer walls of the tops of the two second support frames 26 are fixed with a same lower die holder 3 through screws, an upper die holder 7 is arranged above the lower die holder 3, first hydraulic cylinders 6 are mounted on the outer walls of two sides of the lower die holder 3 through fixing frames 5, the output ends of the first hydraulic cylinders 6 are fixed to the outer wall of the top of the upper die holder 7 through screws, the outer wall of one side of the lower die holder 3 is connected with a feeding hopper 4 through a connecting pipe 19, and the feeding hopper 4 is communicated with the inside of the lower die holder 3 through the connecting pipe 19; the outer wall of the bottom of the lower die holder 3 is provided with a heat transfer seat 13, and a heat preservation mechanism and a cooling mechanism are arranged below the lower die holder 3; the heat preservation mechanism comprises two first heat transfer arc plates 22, the cooling mechanism comprises two second heat transfer arc plates 23, and connecting rods 21 are fixed between the two first heat transfer arc plates 22 and between the two second heat transfer arc plates 23 through screws; first heat transfer arc board 22 is installed in die holder 3 below through first mounting bracket 30, and heat transfer seat 13 one side outer wall be with the cambered surface structure of first heat transfer arc board 22 and the adaptation of second heat transfer arc board 23, heat transfer seat 13 and first heat transfer arc board 22 or the contact of second heat transfer arc board 23.

The outer walls of the two sides of the first heat transfer arc plate 22 are provided with heating rods 27 which are uniformly distributed through mounting seats 28, and the heating rods 27 are positioned inside the first heat transfer arc plate 22; a circulating cooling pipe 24 is arranged in the second heat transfer arc plate 23, and two ends of the circulating cooling pipe 24 are connected with the same water cooling tank 11; the second heat transfer arc plate 23 is fixed on the outer wall of the top of the water cooling tank 11 through a second mounting frame 29; the central points of the first heat transfer arc plate 22 and the second heat transfer arc plate 23 are superposed with the central axis of the rotating seat 14; a driving part for controlling the fixed frame 5 to rotate is arranged on one side of the fixed frame 5; through setting up first heat transfer arc 22, second heat transfer arc 23 isotructure, can be when the casting, utilize the work of heating rod 27 in the first heat transfer arc 22, through first heat transfer arc 22 with heat transfer to heat transfer seat 13 on, and then transmit to in the die holder 3, with guarantee casting quality, when control mount 5 rotates, heat transfer seat 13 slides in first heat transfer arc 22 surface, increase along with turned angle, heat transfer seat 13 breaks away from first heat transfer arc 22 and contacts with second heat transfer arc 23, die holder 3 reachs the drawing of patterns position this moment, 11 work of water-cooling box utilizes circulation cooling tube 24 and second heat transfer arc 23 to heat transfer seat 13 cooling, and then cool down to the interior aluminum alloy part of seat 3, the reliable switching of heat preservation and cooling can be realized to this mode, therefore, the clothes hanger is strong in practicability.

The deflection of the lower die holder 3 and the upper die holder 7 is convenient to control; as shown in fig. 1, the driving part includes a rotating base 14 and a second hydraulic cylinder 9, a hinged base is installed on the outer wall of one side of the second hydraulic cylinder 9, the rotating base 14 is welded to the output end of the second hydraulic cylinder 9, and the rotating base 14 is rotatably connected to the outer wall of the circumference of the connecting column 18; through setting up spliced pole 18 and rotating 14 isotructures of seat, can control the mount 5 through the work of second pneumatic cylinder 9, and then make the casting fill in lower die holder 3 and the upper die base 7 with molten metal to guarantee casting quality.

In order to achieve the heat insulation effect; as shown in fig. 5 and 6, the same heat insulation plate 25 is mounted on the inner wall of each side of the first mounting bracket 30, and the heat insulation plate 25 is located between the first heat transfer arc plate 22 and the second heat transfer arc plate 23; through setting up heat insulating plate 25, can separate the temperature to first heat transfer arc 22 and second heat transfer arc 23, avoid its interact, promote the reliability.

In order to facilitate demoulding; as shown in fig. 3, a third hydraulic cylinder 12 is fixed to the outer wall of the bottom of the lower die holder 3 through screws, an output end of the third hydraulic cylinder 12 extends into the lower die holder 3, and an output end of the third hydraulic cylinder 12 is matched with the inner wall of the bottom of the lower die holder 3; through setting up third pneumatic cylinder 12, can utilize third pneumatic cylinder 12 work after the gravity casting is accomplished, ejecting in the aluminum alloy part follow die holder 3 that will process, promoted the practicality.

To facilitate collection of the processed aluminum alloy parts; as shown in fig. 1, a guide sliding table 8 is arranged below one side of the lower die holder 3, and a collecting box 10 is fixed on the outer wall of one side of the guide sliding table 8 far away from the lower die holder 3 through screws; through setting up direction slip table 8 and collecting box 10, can accept the direction to the aluminium alloy part that processes when the unloading, make it fall into in the collecting box 10, promoted the practicality.

Example 2:

a high-reliability aluminum alloy gravity casting device is shown in figure 3, and is convenient for guiding an upper die holder 7 and a lower die holder 3 to be matched; the present embodiment is modified from embodiment 1 as follows: the outer wall of the bottom of the upper die holder 7 is fixed with guide inserting columns 15 which are uniformly distributed, and the outer wall of the top of the lower die holder 3 is provided with guide inserting holes 17 matched with the guide inserting columns 15; the upper die holder 7 is connected in a sliding way in a guide jack 17 of the lower die holder 3 through a guide inserting column 15; through setting up direction insert post 15 and direction jack 17, can lead when upper die base 7 and 3 compound dies of die holder, promoted stability and firmness.

In order to further improve the guiding capability, as shown in fig. 3 and 4, the guiding insert 15 has a hexagonal prism structure, and the size of the bottom of the guiding insert 15 gradually decreases in a downward direction beyond the vertical direction; through setting up the direction and inserting the super vertical downward of post 15 bottom size and reduce gradually, the guide direction that can be better is inserted post 15 and is inserted in direction jack 17, has promoted the reliability.

In order to facilitate the control of the second hydraulic cylinder 9 to work, as shown in fig. 4, the outer wall of the bottom end of the guiding insertion column 15 is provided with a first conducting strip 16, the inner wall of the bottom of the second conducting strip 20 is provided with a second conducting strip 20 adapted to the first conducting strip 16, and the first conducting strip 16 and the second conducting strip 20 are connected to the control circuit of the second hydraulic cylinder 9; through setting up first conducting strip 16 and second conducting strip 20, can make first conducting strip 16 contact and switch on and the second conducting strip 20 between the compound die when upper die base 7 and die holder 3 to make second pneumatic cylinder 9 can work, when effectively having avoided upper die base 7 and die holder 3 to fail reliable compound die, still control the condition of die holder 3 and upper die base 7 slope.

Example 3:

the use method of the aluminum alloy gravity casting device with high reliability comprises the following steps:

s1: a user controls the first hydraulic cylinder 6 to work, so that the upper die holder 7 and the lower die holder 3 are matched;

s2: controlling the heating rod 27 to work, and preserving the heat of the lower die holder 3;

s3: pouring casting metal liquid from a charging hopper 4 gradually;

s4: controlling the second hydraulic cylinder 9 to work, so that the fixing frame 5 drives the lower die holder 3 and the upper die holder 7 to rotate and deflect, so that the lower die holder 3 and the upper die holder 7 are filled with the metal liquid, and controlling the heating rod 27 to stop working;

s5: after standing for a period of time, controlling the fixed frame 5 to continue rotating, so that the heat transfer seat 13 is separated from the first heat transfer arc plate 22 and is contacted with the second heat transfer arc plate 23;

s6: controlling the water cooling tank 11 to work, and cooling the lower die holder 3 by utilizing the circulating cooling pipe 24 and the second heat transfer arc plate 23;

s7: controlling the first hydraulic cylinder 6 to work, and separating the upper die holder 7 from the lower die holder 3;

s8: controlling the third hydraulic cylinder 12 to work for demoulding;

s9: and controlling the mechanisms to reset.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, which is defined by the claims and their equivalents, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.