Aluminum alloy T-joint casting core

Abstract

The present invention provides an aluminum alloy T-joint casting mold core, the mold core comprises a first side mold, a second side mold, and a mold core part, the first side mold is symmetrically connected to the two sides of the mold core part, and the second side mold is symmetrically arranged on the two sides of the mold core; the mold core part comprises a body, the two sides of the body are symmetrically provided with first connecting parts, and the other two sides of the body are symmetrically provided with first connecting surfaces; one side of the first side mold is provided with a connecting groove, and the first connecting part is matched and connected with the connecting groove; the second side mold is provided with a second connecting surface, and the first connecting surface is matched and connected with the second connecting surface. The present invention replaces the traditional sand core casting process with a metal casting mold core, improves production efficiency, reduces production costs, and significantly reduces the harm caused to the environment by the production process.

Description

Technical Field

[0001] The invention belongs to the technical field of metal connector casting molds, and in particular relates to an aluminum alloy T-joint casting mold core used for connecting scaffolds in construction projects. Background Art

[0002] Aluminum alloy T-joints are widely used as T-joints because of their high specific strength and light weight. For example, they are used in the connection of scaffolding in construction projects. Aluminum alloy T-joints are usually produced by gravity casting as structural parts. Gravity casting refers to the process of injecting molten metal into a mold under the action of the earth's gravity. The hollow part of the cast T-joint has an internal clamping function shape, so a sand core is required as a mold for production. The main component of the sand raw material is resin. A lot of dust will be generated during the raw material processing process. Organic matter such as resin components will decompose during the sand core molding, core making, and pouring processes. The solvent used will volatilize waste gas that is harmful to the human body. The acid and alkali substances dissolved in the preparation process are difficult to handle in water, which is not conducive to green production. At the same time, improper handling will also cause serious pollution to the environment. Moreover, the traditional sand core used as a casting mold core will affect the quality of the casting due to the tightness of the overall structure of the sand core preparation, affect the thickness and uniformity of the fine grain area of ​​the casting surface at the clamping position, and easily produce pores, which require repair welding.

[0003] More importantly, the production of sand core molds requires a lot of labor, water, electricity and other production materials, but one sand core mold can only produce one aluminum alloy T-joint. Each joint needs to be manually assembled once, and the aluminum alloy T-joint produced also needs to clean the internal sand core, which is very inconvenient. At the same time, the processing of waste sand after one-time use also increases the production cost. Summary of the invention

[0004] In view of this, the present invention provides an aluminum alloy T-joint casting mold core, which is made of metal material, can be repeatedly recycled, can be installed through a connecting machine, and ensures production stability; production through the mold of the present invention can greatly improve production efficiency and ensure the quality of the products produced; at the same time, the mold of the present invention replaces the sand core mold in the prior art, does not produce raw materials, reagents, and waste that pollute the environment, meets the requirements of green production, and is an environmentally friendly and economical production tooling for casting aluminum alloy parts.

[0005] The technical solution of the present invention is: an aluminum alloy T-joint casting mold core, characterized in that the mold core includes a first side mold, a second side mold, and a mold core part, the first side mold is symmetrically connected to the two sides of the mold core part, and the second side mold is symmetrically arranged on both sides of the mold core; the mold core part includes a main body, the first connecting parts are symmetrically arranged on both sides of the main body, and the other two sides of the main body are symmetrically arranged with first connecting surfaces; one side of the first side mold is provided with a connecting groove, and the first connecting part is cooperatively connected with the connecting groove; the second side mold is provided with a second connecting surface, and the first connecting surface is cooperatively connected with the second connecting surface.

[0006] Particularly, one side of the first side mold where the connecting groove is arranged is a flat inclined surface, which is matched and connected with the main body of the mold core part.

[0007] In the present invention, the two parts of the first side mold and the second side mold are symmetrically arranged around the core part, which can avoid the demoulding and fastening effect of the internal clamping shape, allowing the overall casting core to move relatively, so as to facilitate the removal of the core part of the casting core.

[0008] Furthermore, the first side mold, the second side mold, and the mold core are connected and matched to enclose a cylindrical casting mold core. In particular, the first side mold, the second side mold, and the mold core are made of metal materials. Preferably, the aluminum alloy T-joint casting mold core is a high-quality carbon structural steel casting mold core. Through this arrangement, the cooling effect can be effectively improved, the thickness and uniformity of the fine grain area of ​​the casting surface at the internal clamping position can be increased, and the product reliability can be improved.

[0009] Furthermore, a semi-conical hole is provided at the lower end of the first connecting part. The depth of the semi-conical hole does not exceed 1 / 4-1 / 2 of the horizontal length of the first connecting part. This arrangement can ensure that no pores are generated inside the aluminum alloy T-joint during the casting process, while also ensuring the overall mechanical properties and stability of the casting mold core; and at the same time, it can prevent the connecting rod of the casting equipment from hitting the parts of the mold core during relative movement during the casting process. Preferably, the depth of the semi-conical hole is 5-20 mm.

[0010] Furthermore, the horizontal cross section of the first connection portion is a trapezoid, the connection groove is a dovetail groove, the first connection surface is a flat inclined surface, and the second connection surface is a flat inclined surface. Through this arrangement, a fitting connection can be achieved, making the internal clamping shape easier to match, ensuring the stability of the casting process, and increasing the thickness of the fine grain zone of the casting surface at the internal clamping position.

[0011] Furthermore, a second connection portion is fixedly connected to the lower part of the main body, and a first threaded hole is symmetrically provided below the second connection portion.

[0012] Furthermore, the body is a stepped body or a three-dimensional rectangular body, and this arrangement can provide a basic guarantee for the connection stability between the core part and the first side mold and the second side mold. Preferably, the body is a stepped body, which can make it easier for the first side mold, the second side mold and the core part to move relative to each other.

[0013] Furthermore, a first protrusion is symmetrically provided on the outer side of the first side mold.

[0014] Furthermore, the first protrusion is a step portion, and the side surface of the step portion is an arc surface.

[0015] Furthermore, a second protrusion is symmetrically provided on the outer side of the second side mold.

[0016] Furthermore, the second protrusion is an arc-shaped protrusion.

[0017] In the present invention, the first protrusion is arranged corresponding to one side of the internal thread of the aluminum alloy T-joint, and the second protrusion is arranged corresponding to the other side of the internal thread of the aluminum alloy T-joint. Through the cooperation of the first protrusion and the second protrusion, a thread fixing structure inside the aluminum alloy T-joint can be formed during the casting process. During the casting process, the mold core of the present application is used for processing and forming the longitudinal connecting part.

[0018] Furthermore, the first threaded hole of the second connecting part below the main body can be fixedly connected to the processing plane of the casting equipment by bolts or the like in the prior art to fix the core part; a second threaded hole is provided at the bottom of the first side mold, which is cooperated and connected with the connecting rod of the casting equipment during the casting process, and the bottom of the second side mold is fixedly cooperated and connected with the connecting rod of the casting equipment to realize the relative movement and cooperation connection of the first connecting surface, the second connecting surface and the core part.

[0019] Furthermore, a first arc-shaped protrusion is provided on the upper part of the first side mold, and a second arc-shaped protrusion is provided on the upper part of the second side mold. The connecting groove runs through one side of the first arc-shaped protrusion. The first arc-shaped protrusion and the second arc-shaped protrusion are respectively connected with the mold core part to form a stable closed structure.

[0020] Furthermore, the second arc-shaped protrusion is fixedly connected with a guide rod, and the function of the guide rod is to enable the processed T-joint product to be taken out along the guide rod, thereby preventing the product from slipping and being damaged due to unstable clamping during the removal process, and also making clamping more convenient.

[0021] In the present invention, the core mold part is connected to the first side mold by relative sliding fit via a connecting groove, and the second side mold is connected to the core mold part and the first side mold by surface fitting.

[0022] The beneficial effects of the present invention are:

[0023] 1. The present invention replaces the sand core used in traditional casting, saves the use of sand core production, and reduces environmental pollution.

[0024] 2. Reduce the intermediate production links of sand cores, reduce the consumption of production materials, and reduce production costs.

[0025] 3. Reduce the post-casting processing steps, reduce the defects caused by sand core problems in sand core production, and reduce production difficulty.

[0026] 4. The mold core of the present invention has a good cooling effect during the casting process, which can increase the thickness and uniformity of the fine grain area of ​​the casting surface at the internal clamping position, thereby improving product reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention;

[0028] Figure 2 It is a top view schematic diagram of the structure of the present invention;

[0029] Figure 3 It is a bottom view schematic diagram of the structure of the present invention;

[0030] Figure 4 It is a structural schematic diagram of the first side mold of the present invention;

[0031] Figure 5 It is a structural schematic diagram of the first side mold of the present invention;

[0032] Figure 6 It is a structural schematic diagram of the second side mold of the present invention;

[0033] Figure 7 It is a structural schematic diagram of the second side mold of the present invention;

[0034] Figure 8 It is a structural schematic diagram of the core part of the present invention;

[0035] Fig. 9 It is a structural schematic diagram of the core part of the present invention;

[0036] Fig.10 It is a schematic diagram of the local structure of the present invention;

[0037] Fig.11 This is a schematic diagram of the structure of the aluminum alloy T-joint produced by the present invention;

[0038] Fig.12 This is a schematic diagram of the structure of the aluminum alloy T-joint produced by the present invention;

[0039] Fig.13 It is a bottom view schematic diagram of the structure of Embodiment 3 of the present invention;

[0040] Fig.14It is a structural schematic diagram of one embodiment of the present invention;

[0041] Fig.15 It is a schematic structural diagram of one embodiment of the present invention being connected with a connecting rod of a casting device. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] Example 1

[0044] The present embodiment provides an aluminum alloy T-joint casting mold core, characterized in that the mold core includes a first side mold 1, a second side mold 2, and a mold core portion 3, the first side mold is symmetrically connected to the two sides of the mold core portion, and the second side mold is symmetrically arranged on both sides of the mold core; the mold core portion includes a main body 31, the two sides of the main body are symmetrically provided with first connecting parts 32, and the other two sides of the main body are symmetrically provided with first connecting surfaces 311; one side of the first side mold is provided with a connecting groove 11, and the first connecting part is matched and connected with the connecting groove; the second side mold is provided with a second connecting surface 21, and the first connecting surface is matched and connected with the second connecting surface.

[0045] Particularly, one side of the first side mold where the connection groove is arranged is a flat inclined surface, which is matched and connected with the body of the mold core part; the first side mold and the second side mold are connected through a plane match.

[0046] In this embodiment, the two parts of the first side mold and the second side mold are symmetrically arranged around the core part, which can avoid the demolding and fastening effect of the internal clamping shape, allowing the overall casting core to move relatively, so as to facilitate the removal of the core part of the casting core.

[0047] Furthermore, the first side mold, the second side mold, and the mold core are connected and matched to enclose a cylindrical casting mold core. In particular, the first side mold, the second side mold, and the mold core are made of metal materials. Preferably, the aluminum alloy T-joint casting mold core is a high-quality carbon structural steel casting mold core. Through this arrangement, the cooling effect can be effectively improved, the thickness and uniformity of the fine grain area of ​​the casting surface at the internal clamping position can be increased, and the product reliability can be improved.

[0048] Furthermore, a semi-conical hole 321 is provided at the lower end of the first connecting part. The depth of the semi-conical hole does not exceed 1 / 4-1 / 2 of the horizontal length of the first connecting part. This arrangement can ensure that no pores are generated inside the aluminum alloy T-joint during the casting process, while also ensuring the overall mechanical properties and stability of the casting mold core; and at the same time, it can prevent the connecting rod of the casting equipment from hitting the parts of the mold core during relative movement during the casting process. Preferably, the depth of the semi-conical hole is 5-20 mm.

[0049] Furthermore, the horizontal cross section of the first connecting portion is a trapezoid, the connecting groove is a dovetail groove, the first connecting surface is a flat inclined surface, and the second connecting surface is a flat inclined surface. Through this arrangement, the casting of the internal clamping shape can be achieved, the stability of the casting process can be ensured, and the thickness of the fine grain area of ​​the casting surface at the internal clamping position can be increased.

[0050] Furthermore, a second connection portion 33 is fixedly connected to the lower portion of the body, and a first threaded hole 331 is symmetrically provided below the second connection portion.

[0051] Furthermore, the main body 31 is a stepped body, and this arrangement can provide a basic guarantee for the connection stability between the core part and the first side mold and the second side mold.

[0052] Furthermore, a first protrusion 12 is symmetrically provided on the outer side of the first side mold.

[0053] Furthermore, the first protrusion is a step portion, and the side surface of the step portion is an arc surface.

[0054] Furthermore, a second protrusion 22 is symmetrically provided on the outer side of the second side mold.

[0055] Furthermore, the second protrusion is an arc-shaped protrusion.

[0056] In this embodiment, the first protrusion is arranged corresponding to the internal thread on one side inside the aluminum alloy T-joint, and the second protrusion is arranged corresponding to the internal thread on the other side inside the aluminum alloy T-joint. Through the cooperation of the first protrusion and the second protrusion, a threaded fixing structure inside the aluminum alloy T-joint can be formed during the casting process.

[0057] Furthermore, a second threaded hole 13 is provided at the bottom of the first side mold 1, which is cooperated with the connecting rod of the casting equipment during the casting process. The bottom of the second side mold is fixedly connected with the connecting rod of the casting equipment to achieve relative movement and cooperation connection between the first connecting surface, the second connecting surface and the mold core.

[0058] Furthermore, a first arc-shaped protrusion 14 is provided on the upper portion of the first side mold, and a second arc-shaped protrusion 23 is provided on the upper portion of the second side mold. The connecting groove 11 passes through one side of the first arc-shaped protrusion. The first arc-shaped protrusion and the second arc-shaped protrusion are respectively connected with the mold core portion to form a stable closed structure.

[0059] In this embodiment, the core mold portion is connected to the first side mold by relative sliding fit via a connecting groove, and the second side mold is connected to the core mold portion and the first side mold by surface fitting.

[0060] The present embodiment provides an aluminum alloy T-joint 4, which includes a transverse connecting portion 41 and a longitudinal connecting portion 42. A threaded portion 43 is provided in the longitudinal connecting portion. The threaded portion includes a first internal thread 431 and a second internal thread 432 that are symmetrically arranged.

[0061] In this embodiment, the first protrusion is arranged corresponding to the first internal thread inside the aluminum alloy T-joint, and the second protrusion is arranged corresponding to the second internal thread inside the aluminum alloy T-joint. Through the cooperation of the first protrusion and the second protrusion, a threaded fixing structure inside the aluminum alloy T-joint can be formed during the casting process.

[0062] Example 2

[0063] The present embodiment provides an aluminum alloy T-joint casting mold core, characterized in that the mold core includes a first side mold 1, a second side mold 2, and a mold core portion 3, the first side mold is symmetrically connected to the two sides of the mold core portion, and the second side mold is symmetrically arranged on both sides of the mold core; the mold core portion includes a main body 31, the two sides of the main body are symmetrically provided with first connecting parts 32, and the other two sides of the main body are symmetrically provided with first connecting surfaces 311; one side of the first side mold is provided with a connecting groove 11, and the first connecting part is matched and connected with the connecting groove; the second side mold is provided with a second connecting surface 21, and the first connecting surface is matched and connected with the second connecting surface.

[0064] Particularly, one side of the first side mold where the connecting groove is arranged is a plane, which is matched and connected with the body of the mold core; the first side mold and the second side mold are matched and connected via a plane.

[0065] In this embodiment, the first side mold, the second side mold, and the mold core are connected and can enclose a cylindrical casting mold core. The aluminum alloy T-joint casting mold core is a high-quality carbon structural steel casting mold core. Through this arrangement, the cooling effect can be effectively improved, the thickness and uniformity of the fine grain area of ​​the casting surface at the internal clamping position can be increased, and the product reliability can be improved.

[0066] Furthermore, a semi-conical hole 321 is provided at the lower end of the first connecting portion. The depth of the semi-conical hole does not exceed 1 / 4-1 / 2 of the horizontal length of the first connecting portion.

[0067] Preferably, the depth of the semi-conical hole is 5-20 mm.

[0068] The first connecting surface is a horizontal plane, and the second connecting surface is a horizontal plane. Through this arrangement, the casting of the internal clamping shape can be realized, the stability of the casting process can be ensured, and the thickness of the fine grain area of ​​the casting surface at the internal clamping position can be increased.

[0069] Furthermore, a second connection portion 33 is fixedly connected to the lower portion of the body, and a first threaded hole 331 is symmetrically provided below the second connection portion.

[0070] Furthermore, the main body 31 is a rectangular body. This arrangement can provide a basic guarantee for the connection stability between the mold core and the first side mold and the second side mold.

[0071] Furthermore, a first protrusion 12 is symmetrically provided on the outer side of the first side mold.

[0072] Furthermore, the first protrusion is a step portion, and the side surface of the step portion is an arc surface.

[0073] Furthermore, a second protrusion 22 is symmetrically provided on the outer side of the second side mold.

[0074] Furthermore, the second protrusion is an arc-shaped protrusion.

[0075] In this embodiment, the first protrusion is arranged corresponding to the internal thread on one side inside the aluminum alloy T-joint, and the second protrusion is arranged corresponding to the internal thread on the other side inside the aluminum alloy T-joint. Through the cooperation of the first protrusion and the second protrusion, a threaded fixing structure inside the aluminum alloy T-joint can be formed during the casting process.

[0076] Furthermore, a second threaded hole 13 is provided at the bottom of the first side mold 1, which is cooperated with the connecting rod of the casting equipment during the casting process. The bottom of the second side mold is fixedly connected with the connecting rod of the casting equipment to achieve relative movement and cooperation connection between the first connecting surface, the second connecting surface and the mold core.

[0077] Furthermore, a first arc-shaped protrusion 14 is provided on the upper portion of the first side mold, and a second arc-shaped protrusion 23 is provided on the upper portion of the second side mold. The connecting groove 11 passes through one side of the first arc-shaped protrusion. The first arc-shaped protrusion and the second arc-shaped protrusion are respectively connected with the mold core portion to form a stable closed structure.

[0078] In this embodiment, the core mold portion is connected to the first side mold by relative sliding fit via a connecting groove, and the second side mold is connected to the core mold portion and the first side mold by surface fitting.

[0079] The present embodiment provides an aluminum alloy T-joint 4, which includes a transverse connecting portion 41 and a longitudinal connecting portion 42. A threaded portion 43 is provided in the longitudinal connecting portion. The threaded portion includes a first internal thread 431 and a second internal thread 432 that are symmetrically arranged.

[0080] In this embodiment, the first protrusion is arranged corresponding to the first internal thread inside the aluminum alloy T-joint, and the second protrusion is arranged corresponding to the second internal thread inside the aluminum alloy T-joint. Through the cooperation of the first protrusion and the second protrusion, a threaded fixing structure inside the aluminum alloy T-joint can be formed during the casting process.

[0081] Example 3

[0082] The present embodiment provides an aluminum alloy T-joint casting mold core, characterized in that the mold core includes a first side mold 1, a second side mold 2, and a mold core portion 3, the first side mold is symmetrically connected to the two sides of the mold core portion, and the second side mold is symmetrically arranged on both sides of the mold core; the mold core portion includes a main body 31, the two sides of the main body are symmetrically provided with first connecting parts 32, and the other two sides of the main body are symmetrically provided with first connecting surfaces 311; one side of the first side mold is provided with a connecting groove 11, and the first connecting part is matched and connected with the connecting groove; the second side mold is provided with a second connecting surface 21, and the first connecting surface is matched and connected with the second connecting surface.

[0083] Particularly, one side of the first side mold where the connecting groove is arranged is a plane, which is matched and connected with the body of the mold core; the first side mold and the second side mold are matched and connected via a plane.

[0084] In this embodiment, the first side mold, the second side mold, and the mold core are connected and can enclose a cylindrical casting mold core. The aluminum alloy T-joint casting mold core is a high-quality carbon structural steel casting mold core. Through this arrangement, the cooling effect can be effectively improved, the thickness and uniformity of the fine grain area of ​​the casting surface at the internal clamping position can be increased, and the product reliability can be improved.

[0085] Furthermore, a semi-conical hole 321 is provided at the lower end of the first connecting portion. The depth of the semi-conical hole does not exceed 1 / 4-1 / 2 of the horizontal length of the first connecting portion.

[0086] Preferably, the depth of the semi-conical hole is 5-20 mm.

[0087] The first connecting surface is an arc surface, and the second connecting surface is a plane provided with an arc groove 211. Through this arrangement, the casting of the internal clamping shape can be realized, the stability of the casting process can be ensured, and the thickness of the fine grain zone of the casting surface layer at the internal clamping position can be increased.

[0088] Furthermore, a second connection portion 33 is fixedly connected to the lower portion of the body, and a first threaded hole 331 is symmetrically provided below the second connection portion.

[0089] Furthermore, the main body 31 is a rectangular body. This arrangement can provide a basic guarantee for the connection stability between the mold core and the first side mold and the second side mold.

[0090] Furthermore, a first protrusion 12 is symmetrically provided on the outer side of the first side mold.

[0091] Furthermore, the first protrusion is a step portion, and the side surface of the step portion is an arc surface.

[0092] Furthermore, a second protrusion 22 is symmetrically provided on the outer side of the second side mold.

[0093] Furthermore, the second protrusion is an arc-shaped protrusion.

[0094] In this embodiment, the first protrusion is arranged corresponding to the internal thread on one side inside the aluminum alloy T-joint, and the second protrusion is arranged corresponding to the internal thread on the other side inside the aluminum alloy T-joint. Through the cooperation of the first protrusion and the second protrusion, a threaded fixing structure inside the aluminum alloy T-joint can be formed during the casting process.

[0095] Furthermore, a second threaded hole 13 is provided at the bottom of the first side mold 1, which is cooperated with the connecting rod of the casting equipment during the casting process. The bottom of the second side mold is fixedly connected with the connecting rod of the casting equipment to achieve relative movement and cooperation connection between the first connecting surface, the second connecting surface and the mold core.

[0096] Furthermore, a first arc-shaped protrusion 14 is provided on the upper portion of the first side mold, and a second arc-shaped protrusion 23 is provided on the upper portion of the second side mold. The connecting groove 11 passes through one side of the first arc-shaped protrusion. The first arc-shaped protrusion and the second arc-shaped protrusion are respectively connected with the mold core portion to form a stable closed structure.

[0097] In this embodiment, the core mold portion is connected to the first side mold by relative sliding fit via a connecting groove, and the second side mold is connected to the core mold portion and the first side mold by surface fitting.

[0098] The present embodiment provides an aluminum alloy T-joint 4, which includes a transverse connecting portion 41 and a longitudinal connecting portion 42. A threaded portion 43 is provided in the longitudinal connecting portion. The threaded portion includes a first internal thread 431 and a second internal thread 432 that are symmetrically arranged.

[0099] In this embodiment, the first protrusion is arranged corresponding to the first internal thread inside the aluminum alloy T-joint, and the second protrusion is arranged corresponding to the second internal thread inside the aluminum alloy T-joint. Through the cooperation of the first protrusion and the second protrusion, a threaded fixing structure inside the aluminum alloy T-joint can be formed during the casting process.

[0100] Example 4

[0101] This embodiment provides an aluminum alloy T-joint casting mold core having a structure consistent with that of Embodiment 1, except that a semi-conical hole 321 is provided at the lower end of the first connecting portion, and the depth of the semi-conical hole does not exceed 1 / 4 of the horizontal length of the first connecting portion, and the depth of the semi-conical hole is 5 mm.

[0102] Example 5

[0103] This embodiment provides an aluminum alloy T-joint casting mold core having a structure consistent with that of Embodiment 1, except that a semi-conical hole 321 is provided at the lower end of the first connecting portion, and the depth of the semi-conical hole does not exceed 1 / 2 of the horizontal length of the first connecting portion, and the depth of the semi-conical hole is 20 mm.

[0104] Example 6

[0105] This embodiment provides an aluminum alloy T-joint casting mold core having a structure consistent with that of Embodiment 1, except that a semi-conical hole 321 is provided at the lower end of the first connecting portion, and the depth of the semi-conical hole does not exceed 1 / 3 of the horizontal length of the first connecting portion, and the depth of the semi-conical hole is 10 mm.

[0106] Example 7

[0107] This embodiment provides an aluminum alloy T-joint casting mold core having a structure consistent with that of Embodiment 1, except that a semi-conical hole 321 is provided at the lower end of the first connecting portion, and the depth of the semi-conical hole does not exceed 2 / 5 of the horizontal length of the first connecting portion, and the depth of the semi-conical hole is 12 mm.

[0108] Example 8

[0109] This embodiment provides an aluminum alloy T-joint casting mold core having a structure consistent with that of Embodiment 1, except that a semi-conical hole 321 is provided at the lower end of the first connecting portion, and the depth of the semi-conical hole does not exceed 3 / 7 of the horizontal length of the first connecting portion, and the depth of the semi-conical hole is 15 mm.

[0110] Example 9

[0111] This embodiment provides an aluminum alloy T-joint casting mold core having a structure consistent with that of Embodiment 2, except that a semi-conical hole 321 is provided at the lower end of the first connecting portion, and the depth of the semi-conical hole does not exceed 1 / 4 of the horizontal length of the first connecting portion, and the depth of the semi-conical hole is 5 mm.

[0112] Example 10

[0113] This embodiment provides an aluminum alloy T-joint casting mold core having a structure consistent with that of Embodiment 2, except that a semi-conical hole 321 is provided at the lower end of the first connecting portion, and the depth of the semi-conical hole does not exceed 1 / 2 of the horizontal length of the first connecting portion, and the depth of the semi-conical hole is 20 mm.

[0114] Embodiment 11

[0115] This embodiment provides an aluminum alloy T-joint casting mold core having a structure consistent with that of Embodiment 2, except that a semi-conical hole 321 is provided at the lower end of the first connecting portion, and the depth of the semi-conical hole does not exceed 1 / 3 of the horizontal length of the first connecting portion, and the depth of the semi-conical hole is 10 mm.

[0116] Example 12

[0117] This embodiment provides an aluminum alloy T-joint casting mold core having a structure consistent with that of Embodiment 2, except that a semi-conical hole 321 is provided at the lower end of the first connecting portion, and the depth of the semi-conical hole does not exceed 2 / 5 of the horizontal length of the first connecting portion, and the depth of the semi-conical hole is 12 mm.

[0118] Example 13

[0119] This embodiment provides an aluminum alloy T-joint casting mold core having a structure consistent with that of Embodiment 2, except that a semi-conical hole 321 is provided at the lower end of the first connecting portion, and the depth of the semi-conical hole does not exceed 3 / 7 of the horizontal length of the first connecting portion, and the depth of the semi-conical hole is 15 mm.

[0120] Embodiment 14

[0121] This embodiment provides an aluminum alloy T-joint casting mold core having a structure consistent with that of Embodiment 3, except that a semi-conical hole 321 is provided at the lower end of the first connecting portion, and the depth of the semi-conical hole does not exceed 1 / 4 of the horizontal length of the first connecting portion, and the depth of the semi-conical hole is 5 mm.

[0122] Embodiment 15

[0123] This embodiment provides an aluminum alloy T-joint casting mold core having a structure consistent with that of Embodiment 3, except that a semi-conical hole 321 is provided at the lower end of the first connecting portion, and the depth of the semi-conical hole does not exceed 1 / 2 of the horizontal length of the first connecting portion, and the depth of the semi-conical hole is 20 mm.

[0124] Example 16

[0125] This embodiment provides an aluminum alloy T-joint casting mold core having a structure consistent with that of Embodiment 3, except that a semi-conical hole 321 is provided at the lower end of the first connecting portion, and the depth of the semi-conical hole does not exceed 1 / 3 of the horizontal length of the first connecting portion, and the depth of the semi-conical hole is 10 mm.

[0126] Embodiment 17

[0127] This embodiment provides an aluminum alloy T-joint casting mold core having a structure consistent with that of Embodiment 3, except that a semi-conical hole 321 is provided at the lower end of the first connecting portion, and the depth of the semi-conical hole does not exceed 2 / 5 of the horizontal length of the first connecting portion, and the depth of the semi-conical hole is 12 mm.

[0128] Embodiment 18

[0129] This embodiment provides an aluminum alloy T-joint casting mold core having a structure consistent with that of Embodiment 3, except that a semi-conical hole 321 is provided at the lower end of the first connecting portion, and the depth of the semi-conical hole does not exceed 3 / 7 of the horizontal length of the first connecting portion, and the depth of the semi-conical hole is 15 mm.

[0130] Embodiment 19

[0131] In this embodiment, an aluminum alloy T-joint casting mold core with a structure consistent with that of Embodiment 1 is provided, except that the second arc-shaped protrusion 23 is fixedly connected to a guide rod 24, and the function of the guide rod is to enable the processed T-joint product to be taken out along the guide rod, thereby preventing the product from slipping and being damaged due to unstable clamping during the removal process, and also making clamping more convenient.

[0132] Embodiment 20

[0133] In this embodiment, an aluminum alloy T-joint casting mold core with a structure consistent with that of Embodiment 2 is provided, except that the second arc-shaped protrusion 23 is fixedly connected to a guide rod 24, and the function of the guide rod is to enable the processed T-joint product to be taken out along the guide rod, thereby preventing the product from slipping and being damaged due to unstable clamping during the removal process, and also making clamping more convenient.

[0134] Embodiment 21

[0135] In this embodiment, an aluminum alloy T-joint casting mold core with a structure consistent with that of Embodiment 3 is provided, except that the second arc-shaped protrusion 23 is fixedly connected to a guide rod 24, and the function of the guide rod is to enable the processed T-joint product to be taken out along the guide rod, thereby preventing the product from slipping and being damaged due to unstable clamping during the removal process, and also making clamping more convenient.

[0136] Embodiment 22

[0137] This embodiment provides an aluminum alloy T-joint casting mold core with a structure consistent with that of Embodiment 1, except that the second arc-shaped protrusion 23 is fixedly connected with a guide rod 24, the function of which is to allow the processed T-joint product to be taken out along the guide rod, thereby preventing the product from slipping and being damaged due to unstable clamping during the removal process, and making clamping more convenient. A second threaded hole 13 is provided at the bottom of the first side mold 1, which is connected with the connecting rod 5 of the casting equipment during the casting process, and the lower part of the second side mold is fixedly connected with the connecting rod 5 of the casting equipment, so as to realize the relative movement and matching connection between the first connecting surface, the second connecting surface and the mold core.

[0138] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0139] In addition, it should be understood that although this specification is described in accordance with the implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art. It should be noted that the technical features not described in detail in the present invention can be realized by any existing technology.

Claims

1. Aluminum alloy T-joint casting mold core, characterized in that: The mold core comprises a first side mold, a second side mold, and a mold core portion, wherein the first side mold is symmetrically connected to the two sides of the mold core portion, and the second side mold is symmetrically arranged on the two sides of the mold core; the mold core portion comprises a body, wherein first connecting portions are symmetrically arranged on the two sides of the body, and first connecting surfaces are symmetrically arranged on the other two sides of the body; a connecting groove is arranged on one side of the first side mold, and the first connecting portion is matched and connected with the connecting groove; the second side mold is provided with a second connecting surface, and the first connecting surface is matched and connected with the second connecting surface; a semi-conical hole is arranged at the lower end of the first connecting portion; the depth of the semi-conical hole does not exceed 1 / 4-1 / 2 of the horizontal length of the first connecting portion, and the depth of the semi-conical hole is 5-20mm; One side of the first side mold where the connection groove is arranged is a flat inclined surface, which is matched and connected with the body of the mold core; the first side mold and the second side mold are symmetrically arranged around the mold core; The mold core part is connected to the first side mold by relative sliding fit through the connection groove, and the second side mold is connected to the mold core part and the first side mold by surface fitting respectively; The horizontal cross-section of the first connecting portion is a trapezoid, and the connecting groove is a dovetail groove; the first connecting surface is a flat inclined surface, and the second connecting surface is a flat inclined surface; The body is a terraced body or a three-dimensional rectangular body; A first arc-shaped protrusion is provided on the upper part of the first side mold, and a second arc-shaped protrusion is provided on the upper part of the second side mold. The connecting groove runs through one side of the first arc-shaped protrusion, and the first arc-shaped protrusion and the second arc-shaped protrusion are respectively connected to the mold core part.

2. The aluminum alloy T-joint casting mold core according to claim 1, characterized in that: A second connection portion is fixedly connected to the lower portion of the main body, and a first threaded hole is symmetrically arranged below the second connection portion.

3. The aluminum alloy T-joint casting mold core according to claim 1, characterized in that: The outer side of the first side mold is symmetrically provided with a first protrusion.

4. The aluminum alloy T-joint casting mold core according to claim 1, characterized in that: The outer side of the second side mold is symmetrically provided with a second protrusion.

5. The aluminum alloy T-joint casting mold core according to claim 1, characterized in that: A second threaded hole is provided at the bottom of the first side mold.

6. The aluminum alloy T-joint casting mold core according to claim 1, characterized in that: The second arc-shaped protrusion is fixedly connected with a guide rod.

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