CN210547972U

CN210547972U - Die casting machine for machining

Info

Publication number: CN210547972U
Application number: CN201921219521.0U
Authority: CN
Inventors: 茅士芳
Original assignee: Zhangjiagang Gran Machinery Co Ltd
Current assignee: Zhangjiagang Gran Machinery Co Ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-05-19
Anticipated expiration: 2029-07-31

Abstract

The utility model discloses a die casting machine for machining, which comprises a base, a fixed die, a movable die, a pressure chamber and a connecting channel, wherein the base is provided with a furnace body and a sliding base, and the furnace body is provided with a heating device; the bottom of the furnace body is communicated with one side of the connecting channel, and the other side of the connecting channel is connected to the pressure chamber. The die casting machine solves the problem of gas in the gaps between the dies, and avoids the problem that the gas in the gaps between the dies expands under the action of heat, so that internal micro defects and surface peeling are caused; the die-casting quality of the product is further improved, the precision of a die-casting machine is improved, and unnecessary material waste is avoided.

Description

Die casting machine for machining

Technical Field

The utility model relates to a die-casting equipment specifically is a die casting machine for machining.

Background

The die casting machine is used for a series of industrial casting machines which are used for injecting molten metal into a die under the action of pressure for cooling and forming and obtaining a solid metal casting after die opening. With the progress of scientific technology and industrial production, especially with the development of industries such as automobiles, motorcycles, household appliances and the like, the die casting machine plays an increasingly important role in industrial production.

Most die casting machines on the market today expand the gas in the gap between the dies during die casting under the influence of heat, resulting in internal micro-defects and surface delamination. Resulting in the casting always being porous and thus not being able to be subjected to any heat treatment or welding. Further resulting in material waste and low production efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a die casting machine for machining to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a die casting machine for machining, includes base and die assembly, die assembly includes cover half, movable mould, presses room and interface channel, its the base on be provided with the vacuum storehouse, die assembly sets up in the vacuum storehouse.

Wherein, the base is provided with a furnace body and a sliding base; the furnace body is provided with a heating device, the bottom of the furnace body is communicated with one side of the connecting channel, and the other side of the connecting channel is connected to the pressure chamber; the fixed die and the movable die are both arranged on the sliding base, and the sliding base is provided with a motor; the movable mold is fixedly connected with a connecting rod, and the connecting rod is connected with a power device; the fixed die, the movable die, the connecting rod, the motor and the sliding base are all positioned in the vacuum chamber; the connection part of the pressure chamber, the fixed die and the connecting channel is respectively provided with a valve and a valve; a piston is arranged on the pressure chamber, and a push rod is connected to the piston; the vacuum chamber is provided with a vacuum valve and a pressure release valve, and the vacuum valve and the pressure release valve are connected to a vacuum pump.

As a further aspect of the present invention: and an induction coil is arranged on the outer side of the connecting channel.

As a further aspect of the present invention: the movable die seat and the fixed die seat are arranged on the sliding base, the movable die and the fixed die are respectively arranged on the movable die seat and the fixed die seat, one side of the movable die seat is connected with the connecting rod, the fixed die seat is arranged on the sliding base, and the fixed die seat can be in butt joint with the pressure chamber.

As a further proposal of the utility model: and the push rod is provided with a scale bar.

Compared with the prior art, the beneficial effects of the utility model are that: the die casting machine solves the problem of gas in the gaps between the dies, and avoids the problem that the gas in the gaps between the dies expands under the action of heat, so that internal micro defects and surface peeling are caused; meanwhile, the die casting machine realizes the quick replacement of the dies on the basis of solving the problem of gas in the gaps between the dies, thereby greatly saving the working time; the die-casting quality of the product is further improved, the precision of a die-casting machine is improved, and unnecessary material waste is avoided.

Drawings

Fig. 1 is a schematic structural view of a die casting machine for machining.

Fig. 2 is an enlarged schematic view of a pressure chamber of a die-casting machine for machining.

In the figure: the device comprises a base 1, a furnace body 2, a heating device 3, a push rod 4, a scale bar 5, a cylinder body 6, a fixed die 7, a movable die 8, a vacuum valve 9, a pressure release valve 10, a vacuum pump 11, a sliding base 12, a motor 13, a connecting rod 14, a movable die holder 15, a fixed die holder 16, a valve I17, a valve II 18, an induction coil 19, a vacuum chamber 20, a pressure chamber 21, a connecting channel 22 and a piston 23.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

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

Example 1

Referring to fig. 1, a die casting machine for machining includes a base 1 and a die assembly, the die assembly includes a fixed die 7, a movable die 8, a pressure chamber 21 and a connecting passage 22, a vacuum chamber 20 is disposed on the base 1, and the die assembly is disposed in the vacuum chamber 20.

The furnace body 2 and the sliding base 12 are arranged on the base 1, the heating device 3 is arranged on the furnace body 2, and the heating device can heat and melt solid metal in the furnace body 2 into liquid metal; the bottom of the furnace body 2 is communicated with one side of a connecting channel 22, and the other side of the connecting channel 22 is connected to a pressure chamber 21; the base 1 is provided with a sliding base 12, the fixed die 7 and the movable die 8 are both arranged on the sliding base 12, and the sliding base 12 is also provided with a motor 13; the movable mold 8 is fixedly connected with a connecting rod 14; the connecting rod 14 is driven by the motor 13 to realize reciprocating motion, and further drives the movable mold 8 to realize reciprocating motion on the sliding base 12; a first valve 17 and a second valve 18 are respectively arranged at the connection part of the pressure chamber 21, the fixed die 7 and the connecting channel 22; when the first valve 17 is opened, molten metal in the pressure chamber 21 can enter a cavity between the movable mold 8 and the fixed mold 7, and when the second valve 18 is opened, molten metal in the furnace body 2 can enter the pressure chamber 21 through the connecting channel 22; a piston 23 is installed on the pressure chamber 21, a push rod 4 is connected to the piston 23, a power device is connected to the push rod 4, the specific structure of the power device is not limited, in this embodiment, preferably, the power device is an electric cylinder, and the push rod 4 can drive the piston 23 to reciprocate up and down on the cylinder body 6;

the fixed die 7, the movable die 8, the connecting rod 14, the motor 13 and the sliding base 12 are all positioned in the vacuum chamber 20; the vacuum chamber 20 is provided with a vacuum valve 9 and a pressure release valve 10, the other ends of the vacuum valve 9 and the pressure release valve 10 are connected to a vacuum pump 11, when the vacuum chamber 20 needs to be in a vacuum state, the vacuum pump 11 works, the vacuum valve 9 is opened, and the vacuum chamber 20 is in the vacuum state at the moment; when the vacuum chamber 20 needs to be depressurized, the relief valve 10 is opened, and the vacuum chamber 20 is restored to a normal state.

The outside of the connecting channel 22 is provided with an induction coil 19, and the induction coil 19 can heat the metal liquid in the connecting channel 22, so that the metal in the connecting channel 22 is prevented from being solidified.

The utility model discloses a theory of operation is:

when the die casting is performed, firstly, the heating device 3 is started, the solid metal in the furnace body 2 is heated and melted into the liquid metal, the valve II 18 is opened, the valve I17 is closed, at the moment, the piston 23 is positioned at the lowest part, the volume space of the pressure chamber 21 is in an initial state, the piston 23 is driven by the push rod 4 to move upwards, so that the space of the pressure chamber 21 is enlarged, the internal pressure of the pressure chamber 21 is negative pressure, and the molten metal flows through the connecting channel 22 from the furnace body 2 into the pressure chamber 21 under the action of the pressure; meanwhile, the motor 13 drives the connecting rod 14 to move, and the further connecting rod 14 pushes the movable mold 8 to move so as to achieve a state of being attached to the fixed mold 7; at the moment, the vacuum pump 11 works, the vacuum valve 9 is opened, and the vacuum bin 20 is in a vacuum state; when the molten metal fills the pressure chamber 21, the second valve 18 is closed, the first valve 17 is opened, and the piston 23 moves downwards under the action of the push rod 4 to extrude the molten metal into a cavity formed between the movable die 8 and the fixed die 7; after the metal is cooled, the pressure release valve 10 is opened, the vacuum chamber 20 is restored to a normal state, the movable die 8 is driven by the connecting rod 14 to move to the left side under the driving of the motor 13, at the moment, the movable die 8 is separated from the fixed die 7, the formed metal part is taken down, and the next action cycle is started. Therefore, the die-casting work is carried out in a vacuum state, and the quality of die-cast parts is further ensured.

Example 2

In order to further improve the working efficiency of the die casting machine, the embodiment is further improved on the basis of embodiment 1, and the improvement is as follows: the metal liquid can flow into the fixed die seat 16 from the pressure chamber 21 and enter a cavity of the fixed die 7 through the pressure chamber 21 on the fixed die seat 16. When the die-casting product needs to be replaced, only the movable die 8 and the fixed die 7 need to be replaced quickly, so that time is greatly saved, and efficiency is improved.

The working principle in this embodiment is as follows: when the die-casting product needs to be replaced, only the original movable die 8 and the original fixed die 7 need to be detached, and the new movable die 8 and the new fixed die 7 are replaced quickly, so that the time is greatly saved, and the working efficiency is improved.

Example 3

In order to further improve the working precision of the die casting machine, the embodiment is further improved on the basis of embodiment 1 or embodiment 2, and the improvement is as follows: the scale strips 5 are arranged on the push rod 4, and the volumes of the metal liquid required by further die-casting are different due to different corresponding volumes of different products, so that the corresponding positions can be directly read from the scale strips 5 on the push rod 4. The precision of the die casting machine is further improved, unnecessary material waste is avoided, and the working time is saved.

The die casting machine solves the problem of gas in the gaps between the dies, and avoids the problem that the gas in the gaps between the dies expands under the action of heat, so that internal micro defects and surface peeling are caused; meanwhile, the die casting machine realizes the quick replacement of the dies on the basis of solving the problem of gas in the gaps between the dies, thereby greatly saving the working time; the die-casting quality of the product is further improved, the precision of a die-casting machine is improved, and unnecessary material waste is avoided.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The utility model provides a die casting machine for machining, includes base (1) and moulding-die subassembly, moulding-die subassembly includes cover half (7), movable mould (8), presses room (21) and interface channel (22), its characterized in that, base (1) on be provided with vacuum storehouse (20), moulding-die subassembly sets up in vacuum storehouse (20).

2. The die casting machine for machining according to claim 1, wherein the base (1) is provided with a furnace body (2) and a sliding base (12), the furnace body (2) is provided with a heating device (3), the bottom of the furnace body (2) is communicated with one side of the connecting channel (22), and the other side of the connecting channel (22) is connected to the pressure chamber (21).

3. The die casting machine for machining according to claim 2, wherein the slide base (12) is provided with a fixed die (7), a movable die (8) and a motor (13).

4. The die casting machine for machining according to claim 1, wherein the movable die (8) is fixedly connected with a connecting rod (14).

5. The die casting machine for machining according to claim 1, wherein a first valve (17) and a second valve (18) are respectively installed at the connection positions of the pressure chamber (21) and the fixed die (7) and the connecting channel (22); the pressure chamber (21) is provided with a piston (23), and the piston (23) is connected with a push rod (4).

6. The die casting machine for machining according to claim 1, wherein the fixed die (7), the movable die (8), the connecting rod (14), the motor (13) and the slide base (12) are all located inside the vacuum chamber (20); the vacuum cabin (20) is provided with a vacuum valve (9) and a pressure release valve (10), and the other ends of the vacuum valve (9) and the pressure release valve (10) are connected to a vacuum pump (11).

7. The die casting machine for machining according to claim 1, wherein an induction coil (19) is installed on the periphery of said connecting passage (22).

8. The die casting machine for machining according to claim 3, wherein the slide base (12) is provided with a movable die holder (15) and a fixed die holder (16), and the movable die (8) and the fixed die (7) are respectively mounted on the movable die holder (15) and the fixed die holder (16); one side of the movable die holder (15) is connected with the connecting rod (14), the fixed die holder (16) is arranged on the sliding base (12), and the fixed die holder (16) can be in butt joint with the pressure chamber (21).

9. The die casting machine for machining according to claim 5, wherein the push rod (4) is provided with a scale bar (5).