Device for controlling deformation of long and narrow barrel-shaped wax pattern for titanium alloy precision investment casting

Abstract

The utility model discloses a device for controlling deformation of a long and narrow barrel-shaped wax mould for titanium alloy precision investment casting. The device comprises a device body which forms a deformation limiting space for containing the wax mould and limiting deformation of the wax mould. And when the template A is in contact with the template B, the long and narrow barrel-shaped wax mold is completely accommodated in a deformation limiting space formed by the deformation limiting groove A and the deformation limiting groove B in a matched manner for deformation limitation, so that the problem that the wax mold with an irregular cross section is excessively extruded and damaged due to deformation resistance of a plane contact wax piece is solved.

Description

Technical Field

[0001] The utility model relates to a device for controlling the deformation of a long and narrow barrel-shaped wax pattern for precision investment casting of titanium alloy, belonging to the technical field of casting wax pattern forming equipment. Background Technique

[0002] When casting titanium alloy investment castings, the casting first needs to be made into the shape of the casting through a wax pattern, then the shell is removed by sandblasting, and then molten titanium alloy metal liquid is poured into the shell and solidified to form the casting. For long and narrow titanium alloy castings, the corresponding wax pattern is long and narrow in shape. After the long and narrow wax pattern is made, it is easy to deform, so the deformation of the long and narrow wax pattern needs to be controlled.

[0003] The existing control of long and narrow wax pattern deformation can be seen in Chinese Patent Publication No. CN220574670U. Although the disclosed technology is to drive two movable blocks by springs to resist deformation by planar contact with the wax part; however, for the long and narrow wax pattern 9 with an irregular cross-section, as shown in Figure 2 shown, there is a problem that when the movable block resists deformation by planar contact with the wax part, the wax pattern with an irregular cross-section will be damaged by excessive extrusion. Content of the Utility Model

[0004] To solve the above technical problems, the utility model provides a device for controlling the deformation of a long and narrow barrel-shaped wax pattern for precision investment casting of titanium alloy.

[0005] The utility model is realized through the following technical solutions.

[0006] A device for controlling the deformation of a long and narrow barrel-shaped wax pattern for precision investment casting of titanium alloy provided by the utility model includes:

[0007] A device that constitutes a deformation limiting space for accommodating the wax pattern and restricting its deformation.

[0008] The said device includes:

[0009] Template A and template B;

[0010] The side of template A facing template B is the mold closing limiting surface A, and the mold closing limiting surface A is provided with an irregularly shaped deformation limiting groove A. The side of template B facing template A is the mold closing limiting surface B, and the mold closing limiting surface B is provided with an irregularly shaped deformation limiting groove B. When template A and template B are in contact, the deformation limiting groove A and the deformation limiting groove B together constitute a deformation limiting space for accommodating the wax pattern and restricting its deformation.

[0011] It also includes an outer frame with a concave accommodating space.

[0012] The said template A and template B can be slidably installed at the bottom of the accommodating space of the outer frame.

[0013] The template A abuts against the outer peripheral frame through the spring A.

[0014] The template B abuts against the outer peripheral frame through the spring B.

[0015] Both the template A and the template B are made of stainless steel.

[0016] An elastic damping sheet is installed between the mold clamping limiting surface A and the mold clamping limiting surface B, and there can be multiple elastic damping sheets.

[0017] The beneficial effect of the present utility model is that when the template A contacts the template B, the long and narrow barrel-shaped wax mold is completely and fittingly accommodated in the deformation limiting space formed by the deformation limiting groove A and the deformation limiting groove B for deformation limitation, solving the problem that the plane contact with the wax part to resist deformation will cause excessive extrusion damage to the wax mold with an irregular cross-section. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the sectional structure of the present utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the wax mold;

[0020] In the figure: 1 - outer peripheral frame; 2 - spring A; 3 - spring B; 4 - template A; 41 - deformation limiting groove A; 42 - mold clamping limiting surface A; 5 - template B; 51 - deformation limiting groove B; 52 - mold clamping limiting surface B; 9 - wax mold. Detailed Embodiments

[0021] The technical solution of the present utility model will be further described below, but the scope of protection claimed is not limited thereto.

[0022] As Figures 1 to 2 shown.

[0023] A device for controlling the deformation of a long and narrow barrel-shaped wax mold used in precision investment casting of titanium alloy includes:

[0024] The outer peripheral frame 1 that is in a fixed state during use, and the outer peripheral frame 1 has a concave accommodation space.

[0025] The spring A 2 and the spring B 3 are fixedly installed on opposite sides of the accommodation space of the outer peripheral frame 1; the template A 4 and the template B 5 that can slide are oppositely installed at the bottom of the accommodation space of the outer peripheral frame 1. The template A 4 abuts against the outer peripheral frame 1 through the spring A 2, and the spring A 2 applies a spring force to the template A 4. The template B 5 abuts against the outer peripheral frame 1 through the spring B 3, and the spring B 3 applies a spring force to the template B 5.

[0026] The template A4 and the template B5 are both made of stainless steel.

[0027] The side of the template A4 facing the template B5 is the mold closing limit surface A42, and the mold closing limit surface A42 is provided with a deformation limit groove A41 with an irregular shape. The side of the template B5 facing the template A4 is the mold closing limit surface B52, and the mold closing limit surface B52 is provided with a deformation limit groove B51 with an irregular shape. When the template A4 contacts the template B5, the deformation limit groove A41 and the deformation limit groove B51 jointly form a deformation limit space for accommodating the wax mold 9 and restricting its deformation. The wax mold with an irregular cross-section is accommodated in the deformation limit space and its deformation is restricted.

[0028] An elastic damping sheet is installed between the mold closing limit surface A42 and the mold closing limit surface B52. There can be multiple elastic damping sheets. When the template A4 and the template B5 initially restrict the wax mold 9, the elastic damping sheet is installed between the mold closing limit surface A42 and the mold closing limit surface B52, enabling the wax mold 9 to slowly adapt to being accommodated between the deformation limit groove A41 and the deformation limit groove B51, and preventing damage caused by the wax mold 9 being too quickly accommodated between the deformation limit groove A41 and the deformation limit groove B51.

[0029] When the template A4 contacts the template B5, all the elastic damping sheets are removed and no longer installed between the mold closing limit surface A42 and the mold closing limit surface B52. The long and narrow barrel-shaped wax mold 9 is completely and fittingly accommodated in the deformation limit space formed by the deformation limit groove A41 and the deformation limit groove B51 for deformation restriction, solving the problem that the plane contact with the wax part to resist deformation may cause excessive extrusion damage to the wax mold with an irregular cross-section.

Claims

1. A device for controlling the deformation of a narrow barrel-shaped wax mold for titanium alloy investment casting, characterized in that: include: A device for forming a deformation limiting space for accommodating the wax model (9) and limiting its deformation; The device comprises: Template A (4) and template B (5); The side surface of the template A (4) facing the template B (5) is a mold limiting surface A (42), and the mold limiting surface A (42) is provided with an irregularly shaped deformation limiting groove A (41); the side surface of the template B (5) facing the template A (4) is a mold limiting surface B (52), and the mold limiting surface B (52) is provided with an irregularly shaped deformation limiting groove B (51); when the template A (4) contacts the template B (5), the deformation limiting groove A (41) and the deformation limiting groove B (51) together form a deformation limiting space for accommodating the wax mold (9) and limiting its deformation; It also includes a peripheral frame (1) with a concave accommodating space.

2. The device for controlling deformation of a narrow barrel-shaped wax pattern for titanium alloy investment casting as claimed in claim 1, characterized in that: The template A (4) and the template B (5) can be slidably installed at the bottom of the accommodating space of the peripheral frame (1).

3. The device for controlling deformation of a narrow barrel-shaped wax pattern for titanium alloy investment casting as claimed in claim 2, characterized in that: The template A (4) is pressed against the outer frame (1) via a spring A (2); the template B (5) is pressed against the outer frame (1) via a spring B (3).

4. The device for controlling deformation of a narrow barrel-shaped wax pattern for titanium alloy investment casting as claimed in claim 3, characterized in that: The template A (4) and template B (5) are both made of stainless steel.

5. The device for controlling deformation of a narrow barrel-shaped wax pattern for titanium alloy investment casting as claimed in claim 1, characterized in that: An elastic damping sheet is installed between the mold closing limit surface A (42) and the mold closing limit surface B (52), and the elastic damping sheet can be multiple sheets.

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