CN114871411A - High-precision vacuum quantitative magnesium-aluminum alloy die-casting device - Google Patents

Abstract

The invention relates to the technical field of quantitative magnesium-aluminum alloy processing, and discloses a high-precision vacuum quantitative magnesium-aluminum alloy die-casting device, comprising a worktable, the top of the worktable is fixedly connected with two fixing plates, A motor is fixedly connected to the wall, a cavity is opened on the inner wall of the top of the worktable, a bidirectional screw is rotatably connected to the inner wall of the worktable in the cavity, and the output shaft of the motor extends to the inner wall of the worktable and is connected with the bidirectional screw. The ends of the screw rod are fixedly connected, the rod wall of the two-way screw rod is threadedly connected with two sliders, the top ends of the two sliders are respectively fixedly connected with movable modules, and the side walls of the movable modules on the right side are fixedly connected. The fixed can be connected with the feed hopper. The high-precision vacuum quantitative magnesium-aluminum alloy die-casting device can stably protect the ejector rod, facilitate subsequent stable ejection, and prevent gas from accumulating inside the closed mold, which affects the quality of the die-casting.

Description

A high-precision vacuum quantitative magnesium-aluminum alloy die-casting device

technical field

The invention relates to the technical field of quantitative magnesium-aluminum alloy processing, in particular to a high-precision vacuum quantitative magnesium-aluminum alloy die-casting device.

Background technique

Magnesium-aluminum alloy is made of magnesium ingots and aluminum ingots melted at high temperature in a protective gas. Its composition includes simple physical mixing and physical mixing that has changed the crystal structure. Aluminum-magnesium alloy materials are light in weight, low in density and heat dissipation Good, strong pressure resistance, can fully meet the product's high integration, light and thin, anti-collision and electromagnetic shielding and heat dissipation requirements. Its stiffness is several times that of traditional plastic cases, but it is only one-third the weight.

In the prior art, during the die-casting process of magnesium-aluminum alloy, the mold cannot stably protect the ejector rod when the mold is closed, which may affect the subsequent ejection. After the aluminum alloy is die-casted, there may be residual pores in the interior, which will affect the quality of the die-casting.

SUMMARY OF THE INVENTION

(1) Technical problems solved

In view of the deficiencies of the prior art, the present invention provides a high-precision vacuum quantitative magnesium-aluminum alloy die-casting device, which has stable protection for the ejector rod, facilitates subsequent stable ejection, and can prevent the internal accumulation of the closed mold. The advantage of gas, which affects the quality of die-casting, solves the problem that the mold cannot provide stable protection to the ejector rod when it is closed, which may affect the subsequent ejection. After the mold is closed, there will be gas accumulation inside the mold, resulting in magnesium-aluminum alloy in the die-casting process. After molding, there may be residual pores in the interior, which will affect the quality of die casting.

(2) Technical solutions

In order to achieve the above purpose, the present invention provides the following technical solutions: a high-precision vacuum quantitative magnesium-aluminum alloy die-casting device, comprising a workbench, the top of the workbench is fixedly connected with two fixing plates, and the side wall of the workbench is A motor is fixedly connected to the top, a cavity is opened on the inner wall of the top end of the worktable, a bidirectional screw rod is rotatably connected to the inner wall of the worktable in the cavity, and the output shaft of the motor extends to the inner wall of the worktable and is connected with the bidirectional wire rod. The ends of the rod are fixedly connected, the rod wall of the two-way screw rod is threadedly connected with two sliders, the top ends of the two sliders are respectively fixed with movable modules, and the side walls of the movable modules on the right side are fixed A feeding hopper can be connected, a storage tank is opened on the inner wall of the movable module, the bottom end of the feeding hopper extends to the inner wall of the top end of the storage tank, and a cylinder is fixedly connected to the side wall of the fixed plate on the right side. A push rod is fixedly connected to the end of the piston rod of the cylinder, a movable sleeve is sleeved on the rod wall of the push rod, and a push plate is fixedly connected to the end of the movable sleeve away from the push rod. The plate is slidably arranged on the inner wall of the storage tank, the rod wall of the push rod is provided with a limiting mechanism, the top of the left movable module is provided with an exhaust mechanism, and the top of the right movable module is provided with a telescopic mechanism.

Preferably, a sealing baffle ring is fixedly connected to the inner wall of the right side of the movable module located in the storage tank, and the cylindrical wall of the movable sleeve is slidably arranged on the inner wall of the sealing baffle ring.

Preferably, the limiting mechanism includes a spring and a limiting block, a groove is formed on the rod wall of the push rod, the bottom end of the spring is fixedly connected to the inner wall of the groove, and the top end of the spring is connected to the limiting block. The blocks are fixedly connected, the top of the limit block is set as a hemisphere, the movable sleeve is now provided with a plurality of limit grooves on the inner wall of the push rod, and the inner wall of the limit groove is provided with an arc surface.

Preferably, guide rods are respectively fixedly connected to one side of the two movable modules away from each other, the guide rods are slidably arranged on the inner wall of the fixed plate, and one side surface corresponding to the two movable modules is respectively fixedly connected to a sealing gasket .

Preferably, the exhaust mechanism includes an air pump, an exhaust pipe, a buffer pipe and an end cover, the air pump is fixedly connected to the top of the movable module on the left side, and the air inlet of the air pump is connected to the exhaust pipe. One end of the buffer pipe is fixedly connected, the bottom end of the buffer pipe is fixedly connected to the top of the movable module on the left side, the end of the exhaust pipe facing away from the air pump is fixedly connected to the top of the buffer pipe, and the movable module on the left side is fixed to the top of the buffer pipe. The top inner wall of the buffer tube is provided with an air outlet.

Preferably, the telescopic mechanism includes a telescopic rod, a fixed seat, a fixed rod and a curved rod, one end of the telescopic rod is hingedly arranged on the side wall of the fixed plate on the right side, and the fixed seat is fixedly connected to the right side The top of the movable module, the fixed rod is fixedly connected to the inner wall of the fixed seat, the rod wall of the curved rod is provided with a through hole, and the curved rod is located on the inner wall of the through hole and is rotatably connected to the rod of the fixed rod. On the wall, the end of the piston rod of the telescopic rod is fixedly connected with the curved rod.

Preferably, the end of the curved rod facing away from the telescopic rod is fixedly connected with a spray head, the top of the spray head is fixedly connected with an infusion tube, and a plurality of fixing buckles are sleeved on the tube wall of the infusion tube, and a plurality of the The fixing buckle is fixedly connected to the rod wall of the curved rod at the same time.

Preferably, a top rod is fixedly connected to the side wall of the fixed plate on the left side, the top rod passes through the movable module on the left side and is fixedly connected with a top plate, and an end of the top plate away from the top rod is fixedly connected with a sealing plate, The inner wall of the movable module on the left is provided with a receiving groove matched with the top plate and the sealing plate.

(3) Beneficial effects

Compared with the prior art, the present invention provides a high-precision vacuum quantitative magnesium-aluminum alloy die-casting device, which has the following beneficial effects:

1. The high-precision vacuum quantitative magnesium-aluminum alloy die-casting device pushes the limit block into the groove through the limit groove, which will drive the movable sleeve to slide along the rod wall of the push rod. The movable sleeve is separated from the push rod, which will not affect the piston rod of the cylinder, avoid affecting and destroying the cylinder, and affecting the service life of the cylinder.

2. The high-precision vacuum quantitative magnesium-aluminum alloy die-casting device uses an air pump to extract the air in the internal gap of the two movable modules along the inside of the exhaust pipe, which can prevent gas from accumulating in the internal gap of the two movable modules, and the buffer tank It can prevent excess material overflow from causing damage to the exhaust pipe.

Description of drawings

1 is a schematic structural diagram of a high-precision vacuum quantitative magnesium-aluminum alloy die-casting device proposed by the present invention;

Fig. 2 is the structural enlarged schematic diagram of part A in Fig. 1;

Fig. 3 is the structural enlarged schematic diagram of part B in Fig. 1;

Fig. 4 is the structural enlarged schematic diagram of part C in Fig. 1;

FIG. 5 is an enlarged schematic view of the structure of part D in FIG. 1 .

In the picture: 1 worktable, 2 fixed plate, 3 motor, 4 bidirectional screw, 5 slider, 6 movable module, 7 feed hopper, 8 cylinder, 9 push rod, 10 movable sleeve, 11 sealing ring, 12 Push plate, 13 spring, 14 limit block, 15 guide rod, 16 gasket, 17 air pump, 18 exhaust pipe, 19 buffer pipe, 20 end cover, 21 telescopic rod, 22 fixed seat, 23 fixed rod, 24 curved Shaped rod, 25 nozzle, 26 infusion tube, 27 fixed buckle, 28 ejector rod, 29 top plate, 30 sealing plate.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to Figure 1-5, a high-precision vacuum quantitative magnesium-aluminum alloy die-casting device, including a worktable 1, the top of the worktable 1 is fixedly connected with two fixing plates 2, and the side wall of the worktable 1 is fixedly connected with a motor 3 , the top inner wall of the workbench 1 is provided with a cavity, the inner wall of the workbench 1 is located in the cavity and is rotatably connected with a two-way screw 4, and the output shaft of the motor 3 extends to the inner wall of the workbench 1 and is fixed with the end of the two-way screw 4 Two sliders 5 are threadedly connected to the rod wall of the bidirectional screw 4, the tops of the two sliders 5 are respectively fixedly connected with the movable module 6, and the side wall of the right movable module 6 is fixedly connected to the feeding hopper. 7. The inner wall of the movable module 6 is provided with a storage tank, the bottom end of the feeding hopper 7 extends to the top inner wall of the storage tank, the side wall of the right fixed plate 2 is fixedly connected with a cylinder 8, and the piston rod end of the cylinder 8 A push rod 9 is fixedly connected with the push rod 9, and a movable sleeve 10 is sleeved on the rod wall of the push rod 9. The end of the movable sleeve 10 away from the push rod 9 is fixedly connected with a push plate 12, and the push plate 12 is slidably arranged in the storage tank. The inner wall of the movable module 6 is located on the right side of the storage tank and is fixedly connected with a sealing baffle ring 11. The cylinder wall of the movable sleeve 10 is slidably arranged on the inner wall of the sealing baffle ring 11. A guide rod 15 is fixedly connected, the guide rod 15 is slidably arranged on the inner wall of the fixed plate 2, a sealing gasket 16 is fixedly connected to one side corresponding to the two movable modules 6, and a top is fixedly connected to the side wall of the left fixed plate 2. Rod 28, the top rod 28 penetrates the left movable module 6 and is fixedly connected with the top plate 29, the end of the top plate 29 away from the top rod 28 is fixedly connected with a sealing plate 30, and the inner wall of the left movable module 6 is provided with the top plate 29 and the sealing plate 30. Matching storage slots.

A limit mechanism is set on the rod wall of the push rod 9, and the limit mechanism includes a spring 13 and a limit block 14. A groove is formed on the rod wall of the push rod 9, and the bottom end of the spring 13 is fixedly connected to the inner wall of the groove. The top end of 13 is fixedly connected with the limit block 14, the top end of the limit block 14 is set as a hemisphere, and the movable sleeve 10 now has a plurality of limit grooves on the inner wall of the push rod 9, and the inner wall of the limit groove is provided with an arc surface .

The top of the left movable module 6 is provided with an exhaust mechanism. The exhaust mechanism includes an air pump 17, an exhaust pipe 18, a buffer pipe 19 and an end cover 20. The air pump 17 is fixedly connected to the top of the left movable module 6. The air pump The air inlet of 17 is fixedly connected to one end of the exhaust pipe 18, the bottom end of the buffer pipe 19 is fixedly connected to the top of the left movable module 6, and the end of the exhaust pipe 18 away from the air pump 17 is fixedly connected to the top of the buffer pipe 19. , the left movable module 6 is provided with an outlet hole relative to the inner wall of the top end of the buffer tube 19 .

The top end of the right movable module 6 is provided with a telescopic mechanism. The telescopic mechanism includes a telescopic rod 21, a fixed seat 22, a fixed rod 23 and a curved rod 24. One end of the telescopic rod 21 is hingedly arranged on the side wall of the right fixed plate 2. The fixed seat 22 is fixedly connected to the top of the right movable module 6, the fixed rod 23 is fixedly connected to the inner wall of the fixed seat 22, the rod wall of the curved rod 24 is provided with a through hole, and the curved rod 24 is located in the inner wall of the through hole. On the rod wall of the fixed rod 23, the end of the piston rod of the telescopic rod 21 is fixedly connected with the curved rod 24, the end of the curved rod 24 away from the telescopic rod 21 is fixedly connected with a spray head 25, and the top of the spray head 25 is fixedly connected with an infusion tube 26. A plurality of fixing buckles 27 are sleeved on the tube wall of the infusion tube 26, and the plurality of fixing buckles 27 are fixedly connected to the rod wall of the curved rod 24 at the same time.

In summary, the high-precision vacuum quantitative magnesium-aluminum alloy die-casting device, when in use, drives the bidirectional screw 4 to rotate through the rotation of the output shaft of the motor 3, so that the two sliders 5 can be close to each other, so that the two movable modules can be made to rotate. 6 move closer to each other and seal. When the right movable module 6 moves, the limit groove pushes the limit block 14 into the groove, which will drive the movable sleeve 10 to slide along the rod wall of the push rod When the movable module 6 moves, the movable sleeve 10 is separated from the push rod 9, so that it will not affect the piston rod of the cylinder 8, avoid affecting and destroying the cylinder 8, and affecting the service life of the cylinder 8. After the module 6 is closed, the molten metal is poured into the interior of the storage tank through the feeding hopper 7 to facilitate subsequent die casting, and the push rod 9 is driven by the piston rod of the cylinder 8 to slide along the inner wall of the movable sleeve 10 until the push rod 9 The end of the spring 13 is pressed against the inner wall of the movable sleeve 10, and the spring 13 pushes the limit block 14 to the inside of the limit groove, so that the cylinder 8 can re-act the thrust on the movable sleeve 10, so as to drive the push plate 12 slides along the inner wall of the storage tank, which can fully push the molten metal into the interior of the movable module 6 .

In order to prevent gas from accumulating in the gap between the two movable modules 6 and affecting the use, the air in the gap between the two movable modules 6 can be pumped out along the inside of the exhaust pipe 18 through the air pump 17, so as to prevent gas Accumulated at the inner gap of the two movable modules 6, the buffer tank 19 can prevent the excess material and liquid overflowing from causing damage to the exhaust pipe 18, and the end cover 20 is convenient to connect the exhaust pipe 18 and the buffer tank 19 together. When the side movable module 6 moves, the fixed seat 22 and the fixed rod 23 can pull the curved rod 24 to move. Since one end of the curved rod 24 is connected with the telescopic rod 21, when the curved rod 24 moves, the telescopic rod 21 and the curved rod will be pulled. One end of the connecting rod 24 moves. Since the other end of the telescopic rod 21 is hingedly arranged on the side wall of the fixed plate 2, the end of the curved rod 24 connected to the telescopic rod 21 will be angularly rotated when the end of the curved rod 24 and the telescopic rod 21 is stretched and retracted. Drive the curved rod 24 to rotate, so that when the two movable modules 6 are opened, the nozzle 25 connected to the bottom end of the curved rod 24 can extend to the gap between the two movable modules 6, and when the movable module 6 is closed, the curved The spray head 25 connected to the bottom end of the rod 24 will be arranged at the top of the closed area of the two movable modules 6, and the cooling liquid can be discharged into the spray head 25 through the infusion pipe 26, so that the spray head 25 can be connected to the gap between the two movable modules 6. Perform cooling work.

The inner depth of the left movable module 6 is deep, so the formed casting will be attached to the inside of the left movable module 6, and when the left movable module 6 moves to close with the right movable module 6, the top plate 29 will be fitted and arranged Inside the placement slot, the sealing plate 30 can ensure the tightness of the connection between the top plate 29 and the placement slot. Since the top rod 28 and the top plate 29 are fixed, after the die casting is completed, the left movable module 6 can be moved to the left. The top plate 29 is made to push the casting apart to facilitate demolding of the casting.

It should be noted that the term "comprising" or any other variation thereof is intended to encompass a non-exclusive inclusion such that a process, method, article or device comprising a list of elements includes not only those elements, but also not expressly listed Other elements, or elements that are inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (8)

1. A high-precision vacuum quantitative magnesium-aluminum alloy die-casting device, comprising a workbench (1), characterized in that: the top of the workbench (1) is fixedly connected with two fixing plates (2), and the workbench ( A motor (3) is fixedly connected to the side wall of 1), a cavity is opened on the inner wall of the top end of the workbench (1), and a bidirectional screw rod (4) is rotatably connected to the inner wall of the workbench (1) in the cavity. , the output shaft of the motor (3) extends to the inner wall of the workbench (1) and is fixedly connected with the end of the bidirectional screw (4), and the rod wall of the bidirectional screw (4) is threadedly connected with two A sliding block (5), the top ends of the two sliding blocks (5) are respectively fixedly connected with a movable module (6), and a feeding hopper (7) is fixedly connected to the side wall of the movable module (6) on the right side. , the inner wall of the movable module (6) is provided with a storage tank, the bottom end of the feeding hopper (7) extends to the inner wall of the top end of the storage tank, and the side wall of the fixing plate (2) on the right side is fixed on the side wall A cylinder (8) is connected, the end of the piston rod of the cylinder (8) is fixedly connected with a push rod (9), and a movable sleeve (10) is sleeved on the rod wall of the push rod (9), so One end of the movable sleeve (10) facing away from the push rod (9) is fixedly connected with a push plate (12), the push plate (12) is slidably arranged on the inner wall of the storage tank, and the rod wall of the push rod (9) A limiting mechanism is provided on the top, an exhaust mechanism is provided at the top of the movable module (6) on the left, and a telescopic mechanism is provided at the top of the movable module (6) on the right. 2. A high-precision vacuum quantitative magnesium-aluminum alloy die-casting device according to claim 1, characterized in that: the movable module (6) is located on the right inner wall of the storage tank and is fixedly connected with a sealing stop ring (11), The cylindrical wall of the movable sleeve (10) is slidably arranged on the inner wall of the sealing baffle ring (11). 3. A high-precision vacuum quantitative magnesium-aluminum alloy die-casting device according to claim 1, characterized in that: the limit mechanism comprises a spring (13) and a limit block (14), and the push rod (9) There is a groove on the rod wall of the spring (13), the bottom end of the spring (13) is fixedly connected to the inner wall of the groove, the top end of the spring (13) is fixedly connected with the limit block (14), the limit block ( The top end of 14) is set as a hemisphere, and the movable sleeve (10) is now provided with a plurality of limiting grooves on the inner wall of the push rod (9), and the inner wall of the limiting groove is provided with an arc surface. 4. A high-precision vacuum quantitative magnesium-aluminum alloy die-casting device according to claim 1, characterized in that: guide rods (15) are respectively fixedly connected to one side of the two movable modules (6) facing away from each other, so The guide rod (15) is slidably arranged on the inner wall of the fixed plate (2), and a sealing gasket (16) is fixedly connected to one side surface corresponding to the two movable modules (6) respectively. 5. A high-precision vacuum quantitative magnesium-aluminum alloy die-casting device according to claim 1, wherein the exhaust mechanism comprises an air pump (17), an exhaust pipe (18), a buffer pipe (19) and a The end cover (20), the air pump (17) is fixedly connected to the top of the movable module (6) on the left side, and the air inlet of the air pump (17) is fixedly connected to one end of the exhaust pipe (18) , the bottom end of the buffer pipe (19) is fixedly connected to the top of the movable module (6) on the left side, and the end of the exhaust pipe (18) facing away from the air pump (17) is fixedly connected to the buffer pipe (19) The top end of the movable module (6) on the left side is provided with an air outlet hole relative to the inner wall of the top end of the buffer tube (19). 6. A high-precision vacuum quantitative magnesium-aluminum alloy die-casting device according to claim 1, wherein the telescopic mechanism comprises a telescopic rod (21), a fixed seat (22), a fixed rod (23) and a curved A rod (24), one end of the telescopic rod (21) is hingedly arranged on the side wall of the fixing plate (2) on the right side, and the fixing seat (22) is fixedly connected to the movable module (6) on the right side The top end of the fixed rod (23) is fixedly connected to the inner wall of the fixed seat (22), the rod wall of the curved rod (24) is provided with a through hole, and the curved rod (24) is located at the end of the through hole. The inner wall is rotatably connected to the rod wall of the fixed rod (23), and the end of the piston rod of the telescopic rod (21) is fixedly connected to the curved rod (24). 7. A high-precision vacuum quantitative magnesium-aluminum alloy die-casting device according to claim 6, characterized in that: the end of the curved rod (24) facing away from the telescopic rod (21) is fixedly connected with a spray head (25), so An infusion tube (26) is fixedly connected to the top of the spray head (25), and a plurality of fixing buckles (27) are sleeved on the wall of the infusion tube (26), and a plurality of the fixing buckles (27) are fixed at the same time. Attached to the rod wall of the curved rod (24). 8. A high-precision vacuum quantitative magnesium-aluminum alloy die-casting device according to claim 1, characterized in that: a top rod (28) is fixedly connected to the side wall of the fixing plate (2) on the left side, and the top The rod (28) penetrates the movable module (6) on the left side and is fixedly connected with a top plate (29), and the end of the top plate (29) facing away from the top rod (28) is fixedly connected with a sealing plate (30). The inner wall of the movable module (6) is provided with a receiving groove matching with the top plate (29) and the sealing plate (30).

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