CN217529180U

CN217529180U - Thin-wall lightweight magnesium alloy cover plate die-casting die

Info

Publication number: CN217529180U
Application number: CN202221211294.9U
Authority: CN
Inventors: 瞿先明
Original assignee: Suzhou Hengrong Precision Electromechanical Co ltd
Current assignee: Suzhou Hengrong Precision Electromechanical Co ltd
Priority date: 2022-05-18
Filing date: 2022-05-18
Publication date: 2022-10-04
Anticipated expiration: 2032-05-18

Abstract

The utility model discloses a thin-wall lightweight magnesium alloy cover plate die-casting die, which comprises an upper die, a plurality of movable rods, a lower die, a first hydraulic cylinder and four positioning columns, wherein a middle groove of the bottom side wall of the lower die is a cavity, and a central through hole of the top side wall of the cavity is an injection hole; each movable rod is in an inverted U shape, the inner vertical rod is a support column, the outer vertical rod is a top column, each movable rod is arranged in a through hole of the upper die, the support column extends into the die cavity, and the top column extends out of the upper die; a movable seat is arranged in a central groove in the top side wall of the lower die, and the lower die is arranged right below the upper die; the first hydraulic cylinder is fixed in the bottom inner cavity of the lower die, and the top end of a telescopic rod of the first hydraulic cylinder is fixedly connected with the bottom end of the movable seat; the bottom end parts of the four positioning columns are respectively fixed in the vertical through holes at the four corners of the lower die, and the top end parts of the four positioning columns are inserted into the vertical through holes at the four corners of the upper die. The utility model is convenient to fall off, and can automatically discharge.

Description

Thin-wall lightweight magnesium alloy cover plate die-casting die

Technical Field

The utility model relates to a die casting die technical field, concretely relates to lightweight magnesium alloy apron die casting die of thin wall.

Background

The die casting mold is a method for casting liquid forging, a process which is completed on a special die casting and forging machine. The basic technological process includes low speed or high speed casting of metal liquid, filling the metal liquid into the cavity of the mold with movable cavity surface, and pressurized forging with the metal liquid cooling process to eliminate shrinkage cavity and shrinkage porosity and to make the inner structure of the blank reach the forged crushed crystal grains. The thin-wall light-weight magnesium alloy cover plate is usually manufactured by adopting a die-casting die.

However, the die casting mold of the prior art is inconvenient to demold and discharge. Therefore, the person skilled in the art provides a thin-wall and lightweight die-casting mold for magnesium alloy cover plates to solve the problems mentioned in the background art.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a thin-wall lightweight magnesium alloy cover plate die-casting die, which comprises an upper die, a plurality of movable rods, a lower die, a first hydraulic cylinder and four positioning columns, wherein a middle groove of the bottom side wall of the lower die is a cavity, and a central through hole of the top side wall of the cavity is an injection hole; each movable rod is in an inverted U shape, the inner vertical rod is a support column, the outer vertical rod is a top column, each movable rod is arranged in a through hole of the upper die, the support column extends into the die cavity, and the top column extends out of the upper die; a movable seat is arranged in a central groove in the top side wall of the lower die, and the lower die is arranged right below the upper die; the first hydraulic cylinder is fixed in the bottom inner cavity of the lower die, and the top end of a telescopic rod of the first hydraulic cylinder is fixedly connected with the bottom end of the movable seat; the bottom end parts of the four positioning columns are respectively fixed in the vertical through holes at the four corners of the lower die, and the top end parts of the four positioning columns are inserted into the vertical through holes at the four corners of the upper die.

Preferably: and a second spring is sleeved on each positioning column, and the top bottom end of each second spring is respectively abutted to the lower side of the upper die and the upper side of the lower die.

Preferably, the following components: the central end of each movable rod is connected with the inner wall of the upper die through a first spring.

Preferably: and a discharging piece is arranged on the lower die.

Preferably: the structure of the discharging part comprises a push rod, two screw rods and a motor, wherein the two screw rods are respectively arranged in the gaps on the left side and the right side of the top side wall of the lower die, and the front ends of the two screw rods are respectively fixed with a first chain wheel; the motor is fixed in a groove in the front side wall of the lower die, a second chain wheel is fixed at the front end of a rotor of the motor, and the second chain wheel is connected with the two first chain wheels through a chain; the push rod is arranged at the rear side part of the top side wall of the lower die, and two ends of the push rod are fixedly connected with the thread blocks on the two screw rods respectively.

Preferably: two protruding strips arranged on the top side wall of the lower die are flanges, and the two flanges are arranged between the two screw rods.

Preferably: an inclined plate fixed on the front side wall of the lower die is a sliding plate.

Preferably, the following components: go up the mould and be provided with the pneumatic cylinder No. two of independent installation directly over, pneumatic cylinder, a pneumatic cylinder and motor and a controller electric connection No. two, the controller belongs to prior art, can realize controlling the pneumatic cylinder, the operation of pneumatic cylinder No. two, motor, no. here is no longer repeated.

The utility model discloses a technological effect and advantage:

1. the utility model is provided with the movable rod, when the upper die covers the lower die, the top post is propped upwards, so that the top post leaves the die cavity after moving upwards, and the die-casting work of the die cavity is not influenced; after the metal liquid in the cavity is die-cast and molded, when the upper die and the lower die are separated, the first spring pulls the movable rod downwards, so that the support column is downwards inserted into the cavity to push out the plate in the cavity, and the stripping is convenient.

2. The utility model discloses set up out the work piece, when die-casting fashioned plate stayed on the lower mould, after rotating in step through two lead screws of motor drive for the push rod slides forward the back, with the plate on the lower mould forward push off the slide, the slide is derived the plate left again, realizes automatic discharging.

Drawings

FIG. 1 is a perspective view of a thin-walled lightweight magnesium alloy cover plate die-casting mold provided in an embodiment of the present application;

FIG. 2 is a cross-sectional view of an upper die of a thin-walled lightweight magnesium alloy cover plate die-casting die provided in an embodiment of the present application;

fig. 3 is a cross-sectional view of a lower die of a thin-walled lightweight magnesium alloy cover plate die-casting die provided in an embodiment of the present application.

In the figure: the device comprises an upper die 10, a cavity 11, an injection hole 12, a movable rod 13, a support column 14, a top column 15, a first spring 16, a slot 17, a lower die 18, a movable seat 19, a first hydraulic cylinder 20, a flange 21, a push rod 22, a screw rod 23, a first chain wheel 24, a motor 25, a second chain wheel 26, a positioning column 27, a second spring 28 and a sliding plate 29.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Example 1

Referring to fig. 1 to 2, in the present embodiment, a thin-wall lightweight magnesium alloy cover plate die-casting mold is provided, including an upper mold 10 and a plurality of movable rods 13, a groove in the middle of a bottom sidewall of the lower mold 10 is a cavity 11, and a central through hole in a top sidewall of the cavity 11 is an injection hole 12; each movable rod 13 is in an inverted U shape, the inner side vertical rod is a support column 13, the outer side vertical rod is a top column 15, each movable rod 13 is arranged in a through hole of the upper die 10, the support column extends into the die cavity 11, the top column extends out from the lower part of the upper die 10, and the central end of each movable rod 13 is connected with the inner wall of the upper die 10 through a first spring 16;

when the upper die 10 covers the lower die 18, the lower die 18 pushes the top pillar 15 upwards, and the pushing pillar 14 leaves the cavity 11 along with the upward movement, so that the die-casting of the plate in the cavity 11 is not hindered; when the upper die 10 and the lower die 18 are separated, the ejection column 15 drops off the pressing of the lower die 18, the first spring 15 rebounds and then pulls the movable rod 13 downwards, so that the ejection column 14 is inserted into the cavity 11 downwards to push out the plate in the cavity 11, and the demolding is facilitated;

the die comprises an upper die 18 and a lower die 18, and is characterized in that a movable seat 19 is arranged in a central groove of the top side wall of the upper die 18, two protruding strips arranged on the top side wall of the upper die 18 are flanges 21, the two flanges 21 are arranged between two screw rods 23, the flanges 21 prevent scraps on the upper die 18 from falling onto the screw rods 23, an inclined plate which is a sliding plate 29 is fixed on the front side wall of the upper die 18, the sliding plate 29 is used for guiding formed plates, and the lower die 18 is arranged right below the upper die 10; the first hydraulic cylinder 20 is fixed in the bottom inner cavity of the lower die 18, and the top end of a telescopic rod of the first hydraulic cylinder 20 is fixedly connected with the bottom end of the movable seat 19 and used for pushing the movable seat 19 upwards;

after the upper die 10 covers the lower die 18, the first hydraulic cylinder 20 extends and then pushes the movable seat 19 upwards, so that the movable seat 19 is inserted into the cavity 11 and serves as a base of the cavity 11; then, after the molten metal is injected into the cavity 11, in the cooling process, the first hydraulic cylinder 20 continues to push the movable seat 19 upwards, so that the movable seat 19 is upwards die-cast with a plate;

the structure of the discharging part comprises a push rod 22, two screw rods 23 and a motor 25, the two screw rods 23 are respectively arranged in the gaps on the left side and the right side of the top side wall of the lower die 18, and a first chain wheel 24 is respectively fixed at the front ends of the two screw rods 23; the motor 25 is fixed in a groove on the front side wall of the lower die 18, a second chain wheel 26 is fixed at the front end of a rotor of the motor 25, and the second chain wheel 26 is connected with the two first chain wheels 24 through a chain; the push rod 22 is arranged at the rear side part of the top side wall of the lower die 18, and two ends of the push rod 22 are respectively fixedly connected with the thread blocks on the two screw rods 23;

after the plate is released to the movable seat 19 by the discharging part, and the first hydraulic cylinder 20 is contracted, the top surface of the movable seat 19 is horizontal to the top surface of the lower die 18; after the motor 25 drives the second chain wheel to rotate, the two first chain wheels 24 are driven to synchronously rotate through the chain, so that after the two screw rods 23 synchronously rotate, the screw blocks are screwed forward and then drive the push rod 22 to move forward, and the push rod 22 pushes the plate forward until the plate falls onto the sliding plate 29, so that automatic discharging is realized;

the four-position hydraulic press further comprises four positioning columns 27 and a second hydraulic cylinder, the bottom ends of the four positioning columns 27 are respectively fixed in the vertical through holes at the four corners of the lower die 18, the top ends of the four positioning columns 27 are inserted into the vertical through holes at the four corners of the upper die 10, a second spring 28 is sleeved on each positioning column 27, and the top and bottom ends of each second spring 28 are respectively abutted to the lower side of the upper die 10 and the upper side of the lower die 18; a second hydraulic cylinder which is independently installed is arranged right above the upper die 10, and the second hydraulic cylinder, the first hydraulic cylinder 20 and the motor 25 are electrically connected with a controller and controlled by the controller;

when the die-casting machine is used, the controller firstly controls the second hydraulic cylinder to press the upper die 10 downwards so that the upper die 10 covers the lower die 18, then controls the first hydraulic cylinder 20 to push the movable seat 19 upwards, and then pours molten metal into the cavity 11 from the injection hole 12 for die-casting; after die-casting, the second hydraulic cylinder is controlled to contract and leave the upper die 10, and the second spring 27 rebounds to push the upper die 10 upwards, so that the upper die 10 is separated from the lower die 18; and then the motor 25 is controlled to operate to discharge the formed plate.

It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by a person of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present disclosure. The structures, devices, and methods of operation of the present invention, not specifically described and illustrated, are generally practiced by those of ordinary skill in the art without specific recitation or limitation.

Claims

1. The thin-wall lightweight magnesium alloy cover plate die-casting die is characterized by comprising an upper die (10), a plurality of movable rods (13), a lower die (18), a first hydraulic cylinder (20) and four positioning columns (27), wherein a middle groove of the bottom side wall of the lower die (18) is a cavity (11), and a central through hole of the top side wall of the cavity (11) is an injection hole (12); each movable rod (13) is in an inverted U shape, the inner side vertical rod is a support column (13), the outer side vertical rod is a top column (15), each movable rod (13) is arranged in a through hole of the upper die (10), the support column extends into the cavity (11), and the top column extends out of the upper die (10); a movable seat (19) is arranged in a central groove of the top side wall of the lower die (18), and the lower die (18) is arranged right below the upper die (10); the first hydraulic cylinder (20) is fixed in an inner cavity at the bottom of the lower die (18), and the top end of a telescopic rod of the first hydraulic cylinder (20) is fixedly connected with the bottom end of the movable seat (19); the bottom end parts of the four positioning columns (27) are respectively fixed in the vertical through holes at the four corners of the lower die (18), and the top end parts are inserted into the vertical through holes at the four corners of the upper die (10).

2. The die-casting die for the thin-wall light-weight magnesium alloy cover plate as claimed in claim 1, wherein each positioning column (27) is sleeved with a second spring (28), and the top end and the bottom end of each second spring (28) are respectively abutted against the lower side of the upper die (10) and the upper side of the lower die (18).

3. The die-casting die for the thin-wall light-weight magnesium alloy cover plate is characterized in that the central end of each movable rod (13) is connected with the inner wall of the upper die (10) through a first spring (16).

4. The die-casting die for the thin-wall light-weight magnesium alloy cover plate is characterized in that a discharging piece is arranged on the lower die (18).

5. The die-casting die for the thin-wall light-weight magnesium alloy cover plate is characterized in that the discharging part structurally comprises a push rod (22), two screw rods (23) and a motor (25), the two screw rods (23) are respectively arranged in gaps on the left side and the right side of the top side wall of the lower die (18), and a first chain wheel (24) is respectively fixed at the front ends of the two screw rods (23); the motor (25) is fixed in a groove in the front side wall of the lower die (18), a second chain wheel (26) is fixed at the front end of a rotor of the motor (25), and the second chain wheel (26) is connected with the first two chain wheels (24) through a chain; the push rod (22) is arranged at the rear side part of the top side wall of the lower die (18), and two ends of the push rod (22) are fixedly connected with the thread blocks on the two screw rods (23) respectively.