Vacuum melting and automatic casting composite die and casting method

Abstract

The invention discloses a vacuum melting and automatic casting composite die and a casting method.The vacuum melting and automatic casting composite die comprises a base, a die body, a die core and a core pulling assembly, a melting crucible is arranged above the base, a partition plate is arranged in the melting crucible, and the die body comprises a first die plate and a second die plate capable of being combined with the first die plate; a core pulling channel is formed in the first mold plate and the second mold plate after the first mold plate and the second mold plate are closed, the mold core is arranged in the core pulling channel, the mold core comprises a preset assembly and a reverse preset assembly capable of being connected with the preset assembly in an embedded mode, and after the first mold plate and the second mold plate are closed, the core pulling channel is formed in the mold body. And the core pulling action is completed by cooperating with the connecting rod to pull the preset assembly to achieve composite pouring of the two kinds of metal, so that the liquid mixing phenomenon is avoided, precise pouring is guaranteed, and then the overall quality of a product bonding interface can be effectively improved.

Description

Technical Field

[0001] The present invention belongs to the field of casting technology, and more particularly relates to a composite mold for vacuum melting and automatic casting and a casting method. Background Art

[0002] Bimetallic cladding involves combining two different metals through a molding process to create a new bimetallic composite material. This composite material combines the performance and advantages of the two different materials. Currently, metal smelting and casting typically involves high-temperature melting in a crucible and then pouring the crucible for casting. This is not only prone to inaccurate casting, but also, because structural components require the shape and size of the bimetallic interface, the bimetallic liquid-liquid composite casting method is prone to mixing. This makes it difficult to achieve the desired bimetallic interface, impacting the bimetallic cladding effect and the quality of the composite interface. Summary of the Invention

[0003] The main purpose of the present invention is to provide a composite mold and casting method for vacuum melting and automatic casting, which can achieve precise casting in a vacuum melting furnace and further improve the overall quality of the product bonding interface.

[0004] To achieve the above object, the technical solution of the present invention is:

[0005] A composite mold for vacuum melting and automatic casting, comprising a base, a mold body, a mold core and a core pulling assembly, a melting crucible is provided above the base, a partition is provided in the melting crucible, the mold body comprises a first template and a second template that can be molded together with the first template, after the first template and the second template are molded together, the top is composed of a first ramp and a second ramp that can respectively correspond to the two output ports of the melting crucible, a core pulling channel is formed inside the first template and the second template after the first template and the second template are molded together, the output ends of the first ramp and the second ramp are respectively provided with a first pouring channel and a second pouring channel, the first pouring channel and the second pouring channel can be respectively connected to the core pulling channel, the mold core is arranged in the core pulling channel, the mold core comprises a preset assembly and an anti-preset assembly that can be engaged with the preset assembly, the core pulling assembly comprises a connecting rod hinged to the base, one end of the connecting rod is hinged to the preset assembly.

[0006] According to the first aspect of the present invention, after the first template and the second template are molded together, a first pouring gate and a second pouring gate are respectively provided at both ends of the top, the first pouring gate is connected to the first pouring channel, and the second pouring gate is connected to the second pouring channel.

[0007] According to an embodiment of the first aspect of the present invention, the bottom of the second template is provided with a side that can be fixedly connected to the base, and at least one mounting hole is provided at each end of the side.

[0008] According to the first embodiment of the present invention, the partition plate separates the top of the melting crucible into a first crucible inlet and a second crucible inlet, and the bottom of the melting crucible into a first crucible outlet and a second crucible outlet.

[0009] According to an embodiment of the first aspect of the present invention, the height of the partition is greater than or equal to the height of the melting crucible.

[0010] According to an embodiment of the first aspect of the present invention, the core pulling assembly further includes at least one push-pull rod connected to the connecting rod.

[0011] According to an embodiment of the first aspect of the present invention, the hinge point between the connecting rod and the base is located in the middle of the connecting rod close to one end of the preset component.

[0012] According to the first aspect of the present invention, a through hole is provided in the first template, and a concave cavity is provided in the second template at a position corresponding to the through hole. After the first template and the second template are molded together, the through hole and the concave cavity form the core-pulling channel.

[0013] According to an embodiment of the first aspect of the present invention, one end of the preset component is provided with a mounting portion that can be hinged to the connecting rod, and the mounting portion is arranged to protrude from the side of the first template.

[0014] According to a second embodiment of the present invention, a method for casting using the vacuum melting automatic casting composite mold comprises the following steps:

[0015] 1) Clamping the first template and the second template to form the core-pulling channel, inserting the mold core into the core-pulling channel, and adjusting the relative positions of the preset component and the counter-preset component so that a step height difference is formed between the two components in the core-pulling channel;

[0016] 2) Adjusting the position of the melting crucible so that the melting crucible outlet is suspended directly above the connection between the first ramp and the second ramp;

[0017] 3) placing two metal materials in the inner compartments of the melting crucible respectively, and placing the melting crucible in a vacuum melting furnace. After the two metal materials are melted, the first metal is poured through the first ramp and the first pouring channel or the second ramp and the second pouring channel;

[0018] 4) The preset component is pulled and drawn by the connecting rod, so that the second metal is poured through the corresponding ramp and the corresponding pouring channel.

[0019] One of the above technical solutions of the present invention has at least one of the following advantages or beneficial effects:

[0020] The present invention forms a core-pulling channel inside the mold body after the first template and the second template are combined, and by setting up double pouring channels, the core-pulling action is completed by pulling and pulling the preset components in conjunction with the connecting rod to achieve composite pouring of the two metals, thereby avoiding the occurrence of liquid mixing, ensuring precise casting, and effectively improving the overall quality of the product bonding interface. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0022] Attachment Figure 1 This is an overall structural diagram of an embodiment of the present invention;

[0023] Attachment Figure 2 An exploded view of an embodiment of the present invention;

[0024] Attachment Figure 3 A front view of an embodiment of the present invention;

[0025] Attachment Figure 4 A top view of an embodiment of the present invention;

[0026] Attachment Figure 5 A diagram showing a second template structure according to an embodiment of the present invention;

[0027] Attachment Figure 6 This is a diagram of a first template structure according to an embodiment of the present invention;

[0028] Attachment Figure 7 This is a diagram of the structure of preset components of an embodiment of the present invention;

[0029] Attachment Figure 8 A bottom view of a melting crucible according to an embodiment of the present invention. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and are not to be construed as limiting the present invention.

[0031] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0032] In the description of the present invention, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly indicate the quantity of the technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be internal communication between two elements, indirect communication, or an interactive relationship between two elements.

[0035] The following disclosure provides many different embodiments or examples for implementing different solutions of the present invention.

[0036] Refer to the attached Figure 1 To the attached Figure 8 As shown, a composite mold for vacuum melting and automatic casting includes a base 1, a melting crucible 2 arranged above the base 1, a mold body 3, a mold core 4 arranged in a core-pulling channel, and a core-pulling assembly 5.

[0037] In one embodiment of the present invention, a partition 21 is provided in the melting crucible 2 to divide the internal space into two parts, and a double runner is provided at the bottom of the melting crucible 2 to ensure that the runner is perpendicular to the connection point between the first ramp 33 and the second ramp 34.

[0038] In one embodiment of the present invention, the mold body 3 includes a first template 31 and a second template 32 that can be molded together with the first template 31. After the first template 31 and the second template 32 are molded together, the top is formed with a first ramp 33 and a second ramp 34 that can be respectively set corresponding to the two output ports of the melting crucible 2.

[0039] In one embodiment of the present invention, a core-pulling channel is formed inside the first template 31 and the second template 32 after the mold is closed, and the output ends of the first ramp 33 and the second ramp 34 are respectively provided with a first pouring channel 35 and a second pouring channel 36, and the first pouring channel 35 and the second pouring channel 36 can be respectively connected to the core-pulling channel.

[0040] In one embodiment of the present invention, a through hole 311 is provided in the first template 31, and a concave cavity 321 is provided in the second template 32 at a position corresponding to the through hole 311. After the first template 31 and the second template 32 are molded together, the through hole 311 and the concave cavity 321 form a core pulling channel. The mold core 4 includes a preset component 41 and an anti-preset component 42 that can be engaged with the preset component 41. The mold core 4 can be detachably installed in the core pulling channel.

[0041] In one embodiment of the present invention, the core pulling assembly 5 includes a connecting rod 51 hinged to the base 1 and a push-pull rod 52 hinged to the connecting rod 51. The push-pull rod 52 can drive the connecting rod 51 to pull and pull the preset assembly 41 to complete the core pulling action, thereby realizing the composite casting of the two metals, thereby avoiding the occurrence of liquid mixing and ensuring precise casting.

[0042] In one embodiment of the present invention, the connection point between the first ramp 33 and the second ramp 34 is set lower than the upper end surface of the mold body 3, so that when melting and casting are performed through the melting crucible 2, the first pouring port 37 and the second pouring port 38 at both ends are coordinated to ensure that the molten liquid does not overflow, thereby avoiding waste and safety accidents.

[0043] In one embodiment of the present invention, the hinge point between the connecting rod 51 and the base 1 is located in the middle of the connecting rod 51 near one end of the preset component 41, and one end of the connecting rod 51 is hinged to the preset component 41, so that when the connecting rod 51 is driven by the push-pull rod 52 to pull the preset component 41, the whole constitutes a labor-saving lever, which facilitates the operator to quickly and labor-savingly pull the preset component 41.

[0044] In one embodiment of the present invention, after the first template 31 and the second template 32 are closed, a first pouring gate 37 and a second pouring gate 38 are formed at the top ends respectively, wherein the first pouring gate 37 is connected to the first pouring channel 35, and the second pouring gate 38 is connected to the second pouring channel 36. This vacuum melting automatic casting composite mold realizes the composite pouring of two metals by setting up a double pouring channel, and completes the core pulling action by pulling the core pulling structure, and can be used for casting bimetallic composite structural components.

[0045] In one embodiment of the present invention, a side edge 6 for connecting to the base 1 with screws or bolts is extended outward from the bottom of the second template 32, and a mounting hole 61 is provided at each end of the side edge 6, which is a screw hole or a bolt hole.

[0046] In one embodiment of the present invention, the height of the partition 21 is greater than or equal to the height of the melting crucible 2, so that the top of the melting crucible 2 is divided into a first crucible inlet and a second crucible inlet by the partition 21, and the bottom of the melting crucible 2 is divided into a first crucible outlet and a second crucible outlet, that is, a double runner is realized. Figure 7 , and the melting crucible 2 is suspended to ensure that the pouring gate is vertically above the connection point between the first ramp 33 and the second ramp 34.

[0047] In one embodiment of the present invention, one end of the preset component 41 is provided with a mounting portion 411 that can be hinged to the connecting rod 51, and a mounting through hole is provided on the mounting portion 411, and the mounting portion 411 is arranged to protrude from the side of the first template 31 so that the connecting rod 51 will not extend into the core-pulling channel, and the hinge point between the connecting rod 51 and the base 1 is located in the middle of the connecting rod 51 close to one end of the preset component 41, so that when the preset component 41 is pulled and pulled by the push-pull rod 52, the whole constitutes a labor-saving lever.

[0048] In one embodiment of the present invention, when casting is performed using the composite mold for vacuum melting and automatic casting, the specific steps include:

[0049] 1. Close the mold of the first template 31 and the second template 32 to form a core-pulling channel. Fix the two templates to the base 1 with bolts. Insert the mold core 4 into the core-pulling channel. Adjust the relative positions of the preset component 41 and the counter-preset component 42 so that the preset component 41 and the counter-preset component 42 form a step height difference in the core-pulling channel.

[0050] 2. Adjust the position of the melting crucible 2 so that the outlet of the melting crucible 2 is suspended directly above the connection between the first ramp 33 and the second ramp 34, ensuring that the first crucible outlet and the second crucible outlet correspond to the first ramp 33 and the second ramp 34 respectively;

[0051] 3. Place the two metal materials in the inner compartments of the melting crucible 2, respectively, and place the melting crucible 2 in a vacuum melting furnace. After the two metal materials are melted, pour the first metal through the first ramp 33 and the first pouring channel 35 or the second ramp 34 and the second pouring channel 36;

[0052] 4. The preset component 41 is pulled and drawn by the connecting rod 51 so that the second metal is poured through the corresponding ramp and the corresponding pouring channel, thereby realizing the composite pouring of the two metals, avoiding the mixing of the liquids and ensuring accurate casting.

[0053] By adopting a casting method that combines metal melting and automatic casting, and making full use of the advantages of a vacuum environment without impurities and high precision of fixed-point casting, the efficiency can be further improved and the quality of the composite interface can be excellent.

[0054] In one embodiment of the present invention, the composite mold for vacuum melting and automatic casting adopts a casting method that combines metal melting and automatic casting to achieve precise casting in a vacuum melting furnace, thereby improving the overall quality of the product interface and increasing labor efficiency, saving labor and site investment, and can be used to process fine components, avoiding waste of raw materials due to inaccurate casting.

[0055] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A composite mold for vacuum melting and automatic casting, characterized in that: include: A base (1), a smelting crucible (2) is provided above the base (1), and a partition (21) is provided inside the smelting crucible (2); A mold body (3), the mold body (3) comprising a first template (31) and a second template (32) that can be molded together with the first template (31), wherein after the first template (31) and the second template (32) are molded together, a first ramp (33) and a second ramp (34) are formed on the top portion thereof, which can respectively correspond to the two output ports of the melting crucible (2); After the first template (31) and the second template (32) are molded together, a core-pulling channel is formed inside. The output ends of the first ramp (33) and the second ramp (34) are respectively provided with a first pouring channel (35) and a second pouring channel (36). The first pouring channel (35) and the second pouring channel (36) can be communicated with the core-pulling channel respectively. A mold core (4) is arranged in the core-pulling channel, wherein the mold core (4) comprises a preset component (41) and an anti-preset component (42) that can be engaged with the preset component (41); A core-pulling assembly (5) includes a connecting rod (51) hinged to the base (1), and one end of the connecting rod (51) is hinged to the preset assembly (41).

2. The composite mold for vacuum melting and automatic casting according to claim 1, characterized in that: After the first template (31) and the second template (32) are molded together, a first pouring port (37) and a second pouring port (38) are respectively provided at the top ends thereof; the first pouring port (37) is connected to the first pouring channel (35), and the second pouring port (38) is connected to the second pouring channel (36).

3. The composite mold for vacuum melting and automatic casting according to claim 2, characterized in that: The bottom of the second template (32) is provided with a side edge (6) that can be fixedly connected to the base (1), and at least one mounting hole (61) is respectively provided at both ends of the side edge (6).

4. The composite mold for vacuum melting and automatic casting according to claim 1, characterized in that: The partition (21) separates the top of the melting crucible (2) into a first crucible inlet and a second crucible inlet, and the bottom of the melting crucible (2) into a first crucible outlet and a second crucible outlet.

5. The composite mold for vacuum melting and automatic casting according to claim 4, characterized in that: The height of the partition (21) is greater than or equal to the height of the smelting crucible (2).

6. The composite mold for vacuum melting and automatic casting according to claim 1, characterized in that: The core pulling assembly (5) further comprises at least one push-pull rod (52) connected to the connecting rod (51).

7. The composite mold for vacuum melting and automatic casting according to claim 6, characterized in that: The hinge point between the connecting rod (51) and the base (1) is located in the middle of the connecting rod (51) and close to one end of the preset component (41).

8. The composite mold for vacuum melting and automatic casting according to claim 1, characterized in that: A through hole (311) is provided in the first template (31), and a concave cavity (321) is provided in the second template (32) at a position corresponding to the through hole (311). After the first template (31) and the second template (32) are molded together, the through hole (311) and the concave cavity (321) form the core-pulling channel.

9. The vacuum melting automatic casting composite mold according to claim 1, characterized in that: One end of the preset component (41) is provided with a mounting portion (411) that can be hinged to the connecting rod (51), and the mounting portion (411) is arranged to protrude from the side of the first template (31).

10. A casting method using the composite mold for vacuum melting and automatic casting according to any one of claims 1 to 9, characterized in that: The steps include: 1) Clamping the first template (31) and the second template (32) to form the core-pulling channel, inserting the mold core (4) into the core-pulling channel, and adjusting the relative positions of the preset component (41) and the counter-preset component (42) so that the two form a step height difference in the core-pulling channel; 2) adjusting the position of the melting crucible (2) so that the output port of the melting crucible (2) is suspended directly above the connection between the first ramp (33) and the second ramp (34); 3) placing the two metal materials in the inner compartments of the melting crucible (2), respectively, and placing the melting crucible (2) in a vacuum melting furnace. After the two metal materials are melted, the first metal is poured through the first ramp (33) and the first pouring channel (35) or the second ramp (34) and the second pouring channel (36); 4) The preset component (41) is pulled and drawn by the connecting rod (51), so that the second metal is poured through the corresponding ramp and the corresponding pouring channel.

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