Rapid positioning tool for high-temperature alloy precision casting mold shell

Abstract

The utility model relates to a rapid positioning tool for a high-temperature alloy precision casting mold shell. The rapid positioning tool comprises a base, two stand columns and a support. The base is circular, and aluminosilicate heat preservation cotton is arranged above the base to reduce the temperature loss of the mold shell. The stand column is of a telescopic column structure, the height is adjusted through a thread screwing button, and accurate control over the position of the support is achieved. The support is of a horseshoe-shaped arc structure and is provided with a guiding opening so that the formwork can be rapidly positioned, and the rear end connecting part and the stand column are connected in an internally-buckled mode so that disassembly and replacement can be facilitated. The internal arc diameter of the support can be selected according to the size of the formwork, the horizontal distance between the internal arc circle center of the support and the counter bore circle center is consistent in the same pouring environment, and positioning accuracy is guaranteed. Through the design of the replaceable support and the telescopic stand column, the mold shell pouring device can rapidly adapt to mold shells of different sizes, rapid and continuous pouring is achieved, and the pouring quality and the production efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of equiaxed crystal vacuum precision casting, and in particular to a quick positioning tooling for high-temperature alloy precision casting mold shells. Background Technology

[0002] In the field of vacuum precision casting of equiaxed crystal high-temperature alloys, the preheating, positioning, and pouring processes of the mold shell are crucial steps affecting casting quality and production efficiency. After preheating, the mold shell needs to be quickly and accurately transferred into the pouring furnace for positioning and pouring operations. Mold shell hangers, as auxiliary tooling in the pouring process, are widely used in the vacuum precision casting of equiaxed crystal high-temperature alloys. The design of the mold shell hanger aims to ensure that, under the same pouring weight, the same mold shell can be stably positioned in the same location during pouring, thereby effectively guaranteeing the consistency and repeatability of the castings.

[0003] In existing technologies, due to the different design requirements and process characteristics of various castings, the dimensions of the pouring cups on the mold shell often vary. This necessitates the customization of different mold shell hanger tooling according to the pouring cup dimensions of different mold shells during actual production. The need to design and manufacture corresponding hanger tooling for multiple sets of mold shells of different sizes significantly increases production preparation and tooling management costs, adding to the economic burden on enterprises. Furthermore, inaccurate positioning during tooling changes can lead to fluctuations in casting quality.

[0004] Therefore, developing a new type of tooling to overcome these defects and meet the actual needs of the field of vacuum precision casting of high-temperature alloy equiaxed crystals is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] Based on the problems existing in the prior art, this utility model aims to solve the problems existing in the prior art by providing a quick positioning casting fixture with a replaceable support. The fixture includes a base, two columns and a support. The base is a circular base, the columns are disposed on one side of the base, and the support is movably installed above the columns.

[0006] Furthermore, the bracket is a horseshoe-shaped arc with an opening on one side. The front end of the bracket has guide openings cut inward on both sides of the opening. The rear end of the bracket has two protruding connecting parts with countersunk holes. The countersunk holes are connected to the column by an inward snap-fit ​​method. The upper end of the connecting part is parallel to the upper end of the bracket, and the lower end of the connecting part protrudes from the bracket to form the countersunk holes.

[0007] Preferably, the inner arc diameter of the support is 150-240mm. Different arc diameters are selected depending on the size of the casting mold shell. Under the same casting environment, the horizontal distance between the center of the inner arc of the support and the center of the countersunk hole is consistent.

[0008] Preferably, the thickness of the bracket is 10-15mm, and the thickness of the connecting part is 20-30mm.

[0009] Preferably, the diameter of the countersunk hole at the connection point with the column is 15-20 mm.

[0010] Furthermore, the column is a telescopic column, with a fixed column at the lower end and a movable column at the upper end. The fixed column is a hollow column, and the movable column is a solid column. The movable column is fitted inside the fixed column and can move up and down within the fixed column.

[0011] Furthermore, a threaded tightening knob is provided on the side of the fixed column. By rotating the threaded tightening knob, the position of the movable column in the fixed column can be fixed, thereby controlling the height of the bracket.

[0012] Preferably, the base is provided with thermal insulation cotton, which is made of aluminosilicate and has a thickness of 12-14mm.

[0013] Furthermore, all components of the base, the column, and the bracket are made of non-magnetic materials.

[0014] Preferably, all components of the base, the column, and the bracket are made of 304 stainless steel.

[0015] The advantages and beneficial effects of this utility model are as follows: The bracket of this utility model is designed as a replaceable structure. Only by replacing the bracket of different sizes can compatibility with different pouring cup sizes be achieved without replacing the entire tooling, greatly saving costs and improving the versatility and flexibility of the tooling. Through the rationally designed bracket structure and the internal snap-fit ​​connection with the column, the same mold shell can be repeatedly positioned in the same location after the mold shell bracket is accurately positioned once, achieving rapid and continuous pouring and greatly improving production efficiency. The design of the mold shell bracket effectively shortens the time spent on mold shell positioning and reduces temperature loss during the positioning process, which is beneficial for the filling of the molten metal and improves the pouring quality. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the present invention.

[0018] Figure 2 This is a schematic diagram of the bracket of this utility model.

[0019] Among them, 1-base, 11-insulation cotton, 2-upright column, 21-fixed column, 22-movable column, 23-threaded tightening knob, 3-bracket, 31-guide port, 32-connecting part, 33-countersunk hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. In the present utility model, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0021] like Figure 1 and Figure 2 As shown, this utility model mainly consists of a base 1, a column 2, and a bracket 3.

[0022] In this embodiment, the base 1 is designed as a circle with a diameter of 400mm to provide a stable support platform. A heat insulation cotton 11 is provided on the top of the base 1. The heat insulation cotton 11 is made of aluminosilicate material and has a thickness of 13mm to reduce the temperature loss of the mold shell during the positioning process.

[0023] Two uprights 2 are located on one side of the base 1 and are used to support the bracket 3. The uprights 2 are telescopic column structures, with a fixed column 21 at the lower end and a movable column 22 at the upper end. The fixed column 21 is a hollow column, and the movable column 22 is a solid column fitted inside the fixed column 21. The movable column 22 can move up and down within the fixed column 21 to adjust its height. A threaded tightening knob 23 is provided on the side of the fixed column 21. Rotating the threaded tightening knob 23 can fix the position of the movable column 22 within the fixed column 21, thereby precisely controlling the height of the bracket 3.

[0024] The bracket 3 is movably mounted above the column 2 and has a horseshoe-shaped arc structure with an opening on one side. Guide openings 31 are obliquely cut inward on both sides of the front opening of the bracket 3, allowing the mold shell to be quickly and accurately positioned inside the bracket 3. Two connecting parts 32 protrude from the rear end of the bracket 3, used to connect with the column 2. The connecting parts 32 have countersunk holes 33, which are connected to the column 2 via an internal snap-fit ​​connection, ensuring a secure connection and facilitating disassembly and replacement.

[0025] The upper end of the connecting part 32 is parallel to the upper end of the bracket 3, and the lower end protrudes from the bracket 3 to form a countersunk hole 33. In this embodiment, the inner arc diameter of the bracket 3 is 230mm. The thickness of the bracket 3 is 15mm, and the thickness of the connecting part 32 is 30mm. These dimensions ensure the strength of the structure and facilitate processing and assembly.

[0026] Specific usage steps:

[0027] First, select the corresponding bracket 3 according to the size of the mold shell pouring cup, and install it with the base 1. Place the hanger on the main shaft lifting platform, place the mold shell on the bracket 3 and push it all the way down. Adjust the support column 2 so that the gap between the bottom steel tray and the bottom of the mold shell is 2-3cm. Put a layer of insulation cotton 11 on the bottom of the base 1 to reduce the risk of under-casting caused by excessive local heat dissipation of the mold shell.

[0028] The large shaft lifting platform is raised to send the mold shell to the pouring position. At the same time, the coil is tilted 90° to a horizontal position. The base 1 is moved back and forth to align the center of the crucible with the center of the pouring cup. The base 1 is moved left and right to make the position from the edge of the crucible to the center of the pouring cup within 15±1cm.

[0029] The position of the bracket is finely adjusted according to the actual pouring speed. Subsequent pours of the same mold shell with the same pouring weight can be continuously poured using the mold shell position determined by the bracket, which is very fast and convenient.

[0030] The above provides a detailed description of a rapid positioning fixture for high-temperature alloy precision casting mold shells provided by this utility model. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are merely for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A quick positioning fixture for a high-temperature alloy precision casting mold shell, comprising a base (1), two columns (2), and a bracket (3), wherein the base (1) is a circular base, the columns (2) are disposed on one side of the base (1), and the bracket (3) is movably mounted above the columns (2), characterized in that, The bracket (3) is a horseshoe-shaped arc. The front end of the bracket (3) has guide openings (31) cut inward on both sides. The rear end of the bracket (3) has two connecting parts (32) protruding out. The connecting parts (32) have countersunk holes (33). The countersunk holes (33) are connected to the column (2) by an inward snap-fit. The upper end of the connecting part (32) is parallel to the upper end of the bracket (3). The lower end of the connecting part (32) protrudes from the bracket (3) to open the countersunk holes (33).

2. The high-temperature alloy precision casting mold shell quick positioning tooling according to claim 1, characterized in that, The diameter of the inner arc of the bracket (3) is 150-240mm.

3. The high-temperature alloy precision casting mold shell quick positioning tooling according to claim 1, characterized in that, The thickness of the bracket (3) is 10-15mm, and the thickness of the connecting part (32) is 20-30mm.

4. The high-temperature alloy precision casting mold shell quick positioning tooling according to claim 1, characterized in that, The diameter of the countersunk hole (33) and the diameter of the connection between the countersunk hole (33) and the column (2) is 15-20mm.

5. The high-temperature alloy precision casting mold shell quick positioning tooling according to claim 1, characterized in that, The column (2) is a telescopic column. The lower end of the column (2) is a fixed column (21) and the upper end is a movable column (22). The fixed column (21) is a hollow column and the movable column (22) is a solid column. The movable column (22) is fitted inside the fixed column (21).

6. The high-temperature alloy precision casting mold shell quick positioning tooling according to claim 5, characterized in that, The fixed column (21) is provided with a threaded tightening knob (23) on its side.

7. A quick positioning fixture for a high-temperature alloy precision casting mold shell according to any one of claims 1-6, characterized in that, The base (1) is provided with thermal insulation cotton (11), which is made of aluminosilicate and has a thickness of 12-14mm.

8. A quick positioning fixture for high-temperature alloy precision casting mold shells according to any one of claims 1-6, characterized in that, All components of the base (1), the column (2), and the bracket (3) are made of non-magnetic materials.

9. A quick positioning fixture for a high-temperature alloy precision casting mold shell according to claim 8, characterized in that, All components of the base (1), the column (2) and the bracket (3) are made of 304 stainless steel.

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