A fixture for preventing deformation of wax parts on thin-walled casing support plates

Abstract

This invention discloses a fixture for preventing deformation of thin-walled casing support plate wax parts, comprising a base; a small flange positioning and fixing assembly located at one end of the top surface of the base for pressing and fixing the small flange of the support plate wax part; a positioning frame located at the other end of the top surface of the base, the positioning frame having a positioning groove for positioning and placing the tip of the support plate wax part; and two large flange positioning and fixing assemblies symmetrically arranged for pressing and fixing the large flange of the support plate wax part. This invention avoids the suspended deformation of the support plate wax part, has a precise overall structure, is simple and convenient to use and operate, improves work efficiency, prevents support plate deformation and thus improves the pass rate of casing wax molds, reduces waste, lowers production costs, shortens the production cycle, and ensures the normal delivery of casing products.

Description

Technical Field

[0001] This invention relates to the field of precision casting technology, and in particular to a fixture for placing thin-walled casing support plates to prevent deformation of wax parts. Background Technology

[0002] Aero-engine casing castings are precision cast, and their complex structure and large-area thin walls make them highly susceptible to deformation, especially in the molding process. Wax pattern preparation is a crucial step in investment casting; the dimensional accuracy of the wax pattern directly affects the dimensional accuracy of the casting blank. However, controlling the dimensions of the wax pattern is extremely difficult due to numerous factors, including the wax pattern workshop environment and the placement of the wax patterns, particularly the arrangement of the patterns. The casing wax part is composed of multiple support plates, and the dimensions of each support plate wax part affect the overall dimensions of the casing wax part. For example... Figure 5 As shown, the support plate wax mold 100 includes blades 101. One end of the blade 101 is provided with a small flange 102 and a large flange 103 at the top and bottom. The bottom of the end of the blade 101 away from the large flange 103 is a blade tip 104. The blades 101 of the support plate wax mold 100 are thin-walled and hollow, with a complex structure, making them extremely easy to deform and unstable. Without the placement of fixtures, they cannot be properly placed, resulting in deformation of the support plate wax mold. As a result, it cannot be assembled into a qualified and complete housing wax mold, which cannot meet production requirements, increases production costs, causes production delays, and prevents the completion of product delivery. Summary of the Invention

[0003] The main objective of this invention is to provide a tooling for placing thin-walled casing support plates to prevent deformation of wax parts, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: a tooling for placing thin-walled casing support plate wax parts to prevent deformation, including a base;

[0005] The small flange positioning and fixing component is located at one end of the top surface of the base and is used to press and fix the small flange of the support plate wax piece.

[0006] A positioning frame is located at the other end of the top surface of the base, and the positioning frame is provided with a positioning groove for positioning and placing the tip of the support plate wax part.

[0007] The large flange positioning and fixing assembly consists of two symmetrically arranged flanges used for pressing and fixing the large flanges of the support plate wax parts.

[0008] Preferably, the small flange positioning and fixing assembly includes a bracket, a top block, and a small flange pressing block. The top block is fixedly connected to the top surface of the bracket. A stepped groove is provided on one side of the top block, and the vertical surface of the stepped groove is an arc structure. A pressing frame is fixedly connected to the top block. The small flange pressing block is located above the stepped groove and can be raised and lowered and adjusted with the pressing frame.

[0009] Preferably, the crimping frame is provided with a horizontal slide groove, and a lead screw passes through the horizontal slide groove. The lower end of the lead screw is fixedly connected to a small flange pressure block. The upper and lower ends of the lead screw are threaded with adjusting nuts, and the adjusting nuts abut against the crimping frame.

[0010] Preferably, the large flange positioning and fixing assembly includes a translation block and a large flange pressing block. The translation block is slidably connected to the base, and a stepped groove is provided on one side of the translation block. The vertical surface of the stepped groove is an arc structure. A pressing frame is fixedly connected to the translation block. The large flange pressing block is located above the stepped groove and can be raised and lowered with the pressing frame.

[0011] Preferably, the second pressing frame is provided with a horizontal sliding groove, and a second lead screw passes through the horizontal sliding groove. The lower end of the second lead screw is fixedly connected to a large flange pressure block. The upper and lower ends of the second lead screw are threaded with adjusting nuts, and the adjusting nuts abut against the second pressing frame.

[0012] Preferably, the large flange positioning and fixing assembly further includes a support, which is fixedly connected to the base. The support is provided with a threaded cylinder, and a screw is threadedly connected to the threaded cylinder. One end of the screw is movably connected to the translation block, and the other end of the screw is fixedly connected to a handle.

[0013] Preferably, the side of the translation block near the large flange of the support plate is provided with an arc surface structure, and the top surface of the base is provided with an inner ring retaining strip inside the two large flange positioning and fixing components. The inner ring retaining strip abuts against the inner side of the large flange of the casing, and the inner ring retaining strip and the arc surface structure of the side of the translation block cooperate to clamp and fix the inner and outer sides of the large flange of the support plate.

[0014] Compared with traditional technologies, the beneficial effects of this invention are as follows: This invention uses small flange positioning and fixing components and large flange positioning and fixing components to clamp and fix the small flange and large flange of the support plate in the casing wax model. At the same time, the positioning groove on the positioning frame is used to position and support the blade tip of the support plate wax part. Combining the structural characteristics of the support plate, positioning points and support points are established at the large flange, small flange and blade tip positions of the support plate wax model, which can properly place the support plate wax model, prevent the support plate from deforming due to unstable center of gravity, avoid the suspension deformation of the support plate wax part, the overall structure is precisely manufactured, and the operation is simple and convenient, improving work efficiency, preventing support plate deformation and thus improving the pass rate of casing wax model, reducing waste, reducing production costs, shortening the production cycle, and ensuring the normal delivery of casing products. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention;

[0016] Figure 2This is a schematic plan view of the overall structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the small flange positioning and fixing assembly structure of the present invention;

[0018] Figure 4 This is a schematic diagram of the overall structure of the present invention, showing the clamping structure for the support plate and wax parts.

[0019] Figure 5 This is a schematic diagram of the existing support plate wax component structure.

[0020] In the diagram: 1. Base; 2. Small flange positioning and fixing assembly; 201. Bracket; 202. Top block; 203. Step groove one; 204. Crimping frame one; 2041. Protrusion; 2042. Handhold one; 205. Small flange pressing block; 206. Horizontal slide groove one; 207. Screw one; 208. Adjusting nut one; 3. Positioning frame; 301. Positioning groove; 4. Large flange positioning and fixing assembly; 401. Translation block; 402. Large flange pressing block; 403. Step groove two; 404. Crimping frame two; 405. Horizontal slide groove two; 406. Screw two; 407. Adjusting nut two; 408. Support; 409. Screw; 410. Handle; 411. Threaded cylinder; 5. Inner ring retaining strip; 100. Support plate wax model; 101. Blade; 102. Small flange; 103. Large flange; 104. Blade tip. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0022] As described in the background art, the blades of the support plate wax part are thin-walled and hollow, with a complex structure, making them extremely easy to deform and unstable. Without the placement fixture, they cannot be properly placed, leading to deformation of the support plate wax part. As a result, they cannot be assembled into a qualified and complete housing wax part, which cannot meet production needs, increases production costs, causes production delays, and prevents the completion of product delivery.

[0023] To solve this technical problem, the present invention provides a tooling for placing thin-walled casing support plate wax parts to prevent deformation, which is applied in the field of precision casting technology.

[0024] For details, please refer to Figure 1-4The aforementioned anti-deformation placement fixture for thin-walled casing support plate wax parts includes a base 1; a small flange positioning and fixing assembly 2, which is located at one end of the top surface of the base 1 and is used to press and fix the small flange of the support plate wax parts; a positioning frame 3, which is located at the other end of the top surface of the base 1, and the positioning frame 3 is provided with a positioning groove 301 for positioning and placing the blade tip of the support plate wax parts; and two large flange positioning and fixing assemblies 4, which are arranged symmetrically and are used to press and fix the large flange of the support plate wax parts.

[0025] The thin-walled casing support plate wax mold anti-deformation placement fixture provided by this invention uses a small flange positioning and fixing component 2 and a large flange positioning and fixing component 4 to clamp and fix the small flange and large flange of the support plate in the casing wax mold. At the same time, the positioning groove 301 on the positioning frame 3 provides positioning support for the blade tip of the support plate wax mold. Combining the structural characteristics of the support plate, positioning points and support points are established at the large flange, small flange and blade tip positions of the support plate wax mold, which can properly place the support plate wax mold, prevent the support plate from deforming due to unstable center of gravity, avoid the suspended deformation of the support plate wax mold, and the overall structure is precisely manufactured, simple and convenient to use and operate, improve work efficiency, prevent the support plate from deforming and thus improve the pass rate of casing wax mold, reduce waste, reduce production costs, shorten the production cycle, and ensure the normal delivery of casing products.

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0027] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] Example

[0030] Please refer to Figure 1-4 A fixture for preventing deformation of thin-walled casing support plate wax parts is provided. It includes a base 1, a small flange positioning and fixing component 2 at one end of the top surface of the base 1, and a positioning frame 3 at the other end of the top surface of the base 1. The upper part of the positioning frame 3 is bent toward the small flange positioning and fixing component 2, and the bent part is provided with a positioning groove 301. The positioning groove 301 is an open groove that passes through the positioning frame 3. The blade tip of the support plate wax part can fit tightly with the positioning groove 301. The centers of the small flange positioning and fixing component 2 and the positioning frame 3 are located on the same vertical plane. Two symmetrical large flange positioning and fixing components 4 are provided on both sides between the positioning frame 3 and the small flange positioning and fixing component 2. The small flange positioning and fixing component 2 and the large flange positioning and fixing component 4 can be used to position and clamp and fix the small flange part and the large flange part of the support plate wax model.

[0031] like Figure 1 , 3 As shown, in this example, the small flange positioning and fixing assembly 2 includes a bracket 201, which is composed of two parallel vertical plates. A top block 202 is fixedly connected to the top surface of the bracket 201. A stepped groove 203 is provided on one side of the top block 202, and the vertical surface of the stepped groove 203 is an arc surface structure. The arc surface structure is consistent with the curvature of the outer surface of the small flange. The small flange of the support plate wax mold is placed in the stepped groove 203, and the outer surface of the small flange is in contact with the vertical surface of the stepped groove 203. At the same time, a pressing frame 204 is provided at the top height of the top block 202. The pressing frame 204 is provided with a small flange pressing block 205 that can be raised and lowered. The small flange pressing block 205 is used to press the top surface of the small flange of the support plate wax mold.

[0032] like Figure 3 As shown, a protrusion 2041 is provided on the crimping frame 204. The protrusion 2041 has a folding structure, allowing it to rotate around the crimping frame 204. The protrusion 2041 also has a handle 2042 for easy folding. A horizontal groove 206 is provided on the protrusion 2041, and a lead screw 207 passes through the groove. The lower end of the lead screw 207 is fixedly connected to a small flange pressure block 205. The lead screw 207 is located within the crimping frame 204. Both the upper and lower ends are threaded with adjusting nuts 208, which abut against the crimping frame 204. By rotating the adjusting nuts 208, the distance between the small flange pressing block 205 and the horizontal surface of the stepped groove 203 is adjusted to accommodate small flanges of different thicknesses of support plate wax molds. A folding protrusion 2041 is provided on the crimping frame 204. After the support plate wax mold is completed, the small flange of the support plate can be quickly crimped and fixed by folding the protrusion 2041.

[0033] like Figure 1 , 2As shown, the large flange positioning and fixing assembly 4 includes a translation block 401 and a large flange pressing block 402. The translation block 401 is slidably connected to the base 1. In use, the translation block 401 can slide on the base 1 according to the diameter of the large flange of the support plate. At the same time, a stepped groove 403 is provided on the upper part of the side of the large flange of the translation block 401 near the support plate wax mold. The vertical surface of the stepped groove 403 is an arc surface structure with the same curvature as the outer surface of the large flange. A pressing frame 404 is fixedly connected to the translation block 401. The flange pressing block is located above the stepped groove 403 and is connected to the pressing frame 404. 404 is height-adjustable. The second pressing frame 404 adopts the same structure as the first pressing frame 204. It is provided with a horizontal sliding groove 405. A screw rod 406 passes through the horizontal sliding groove 405. The lower end of the screw rod 406 is fixedly connected to the large flange pressing block 402. The upper and lower ends of the screw rod 406 are threaded with adjusting nuts 407. The adjusting nuts 407 abut against the pressing frame 404. By rotating the adjusting nuts 407, the height of the large flange pressing block 402 can be adjusted, thereby realizing the pressing and fixing of the large flange of the support plate wax mold.

[0034] like Figure 1 As shown, to facilitate the movement of the translation block 401, the large flange positioning and fixing assembly 4 also includes a support 408, which is fixedly connected to the base 1. A threaded cylinder 411 is provided on the support 408, and a screw 409 is internally threaded onto the threaded cylinder 411. One end of the screw 409 is movably connected to the translation block 401, and the other end of the screw 409 is fixedly connected to a handle 410. By rotating the screw 409 through the handle 410, the translation block 401 is driven to slide on the base 1. The bottom surface of the translation block 401 slides on the base 1 using a limiting slide rail, ensuring the limited sliding of the translation block 401. Simultaneously, the sliding direction of the translation block 401 is radial sliding, i.e., the translation block 401... The sliding vector direction of 01 is towards the center of the large flange of the support plate wax mold. In order to facilitate the limiting of the inner side wall of the large flange of the support plate wax mold, an inner ring baffle 5 is provided on the inner side of the translation block 401. The inner ring baffle 5 has an arc structure and is fixedly connected to the base 1. During the pushing process of the translation block 401, the inner side wall of the large flange of the support plate wax mold fits against the outer side wall of the inner ring baffle 5, thereby limiting the large flange of the support plate wax mold by the outer side wall of the inner ring baffle 5. The inner ring baffle 5 and the arc structure of the side of the translation block 401 are used to clamp and fix the inner and outer sides of the large flange of the support plate wax mold, thus preventing the large flange of the support plate wax mold from deforming during the clamping and fixing process.

[0035] The method of using the anti-deformation placement fixture for the thin-walled casing support plate wax parts provided by this invention is as follows: Figure 4As shown, by turning the screw 409 with the handle 410, a gap is left between the translation block 401 and the inner ring retaining strip 5 for placing the large flange of the support plate wax mold. At the same time, the height of the small flange pressing block 205 is adjusted to the maximum so that the support plate can be placed on the base 1. After the support plate wax mold is placed on the base 1, the bottom surface of the small flange of the support plate wax mold is in contact with the bottom surface of the step groove 203, and the outer side of the small flange is in contact with the vertical surface of the step groove. At the same time, the tip part of the support plate wax mold is placed into the positioning groove 301, and the large flange of the support plate wax mold is located between the inner ring retaining strip 5 and the flat plate. Between the moving blocks 401, initial support for the support plate wax model is achieved. Rotating the handle 410, the screw 409 drives the moving blocks 401 to move towards the inner ring retainer 5 until the side of the moving blocks 401 is in contact with the outer wall of the large flange, completing the positioning of the large flange. Simultaneously, rotating the adjusting nut 208 and adjusting nut 407 causes the small flange pressing block 205 and the large flange pressing block 402 to press and fix the small and large flanges of the support plate wax model, thus completing the positioning and fixed placement of the support plate wax model. This invention, combined with the structural characteristics of the support plate, establishes positioning and support points at the large flange, small flange, and blade tip positions of the support plate, ensuring proper placement of the support plate wax model and preventing deformation caused by instability of the support plate's center of gravity. The tooling is precisely manufactured, simple and quick to operate, improving work efficiency, preventing support plate deformation, increasing product qualification rate, reducing waste, lowering production costs, and shortening the production cycle.

[0036] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0037] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.

Claims

1. A fixture for preventing deformation of wax parts on a thin-walled casing support plate, comprising a base, characterized in that: Also includes: The small flange positioning and fixing assembly is located at one end of the top surface of the base and is used to press and fix the small flange of the support plate wax piece. A positioning frame is located at the other end of the top surface of the base, and the positioning frame is provided with a positioning groove for positioning and placing the tip of the support plate wax part. The large flange positioning and fixing assembly consists of two symmetrically arranged flanges used to press and fix the large flanges of the support plate wax parts. The large flange positioning and fixing assembly includes a translation block and a large flange pressing block. The translation block is slidably connected to the base, and one side of the translation block is provided with a stepped groove II, the vertical surface of which is an arc surface structure. A pressing frame II is fixedly connected to the translation block. The large flange pressing block is located above the stepped groove II and is adjustable in height with the pressing frame II. The side of the translation block near the support plate large flange is provided with an arc surface structure. The top surface of the base is located inside the two large flange positioning and fixing assemblies and is provided with an inner ring retaining strip. The inner ring retaining strip abuts against the inner surface of the casing large flange. The inner ring retaining strip and the arc surface structure of the side of the translation block cooperate to clamp and fix the inner and outer surfaces of the support plate large flange.

2. The anti-deformation placement fixture for thin-walled casing support plate wax parts according to claim 1, characterized in that: The small flange positioning and fixing assembly includes a bracket, a top block, and a small flange pressing block. The top block is fixedly connected to the top surface of the bracket. A stepped groove is provided on one side of the top block, and the vertical surface of the stepped groove is an arc structure. A pressing frame is fixedly connected to the top block. The small flange pressing block is located above the stepped groove and can be raised and lowered and adjusted with the pressing frame.

3. The anti-deformation placement fixture for thin-walled casing support plate wax parts according to claim 2, characterized in that: The crimping frame is provided with a horizontal sliding groove, and a lead screw passes through the horizontal sliding groove. The lower end of the lead screw is fixedly connected to a small flange pressure block. The upper and lower ends of the lead screw are threaded with adjusting nuts, which abut against the crimping frame.

4. The anti-deformation placement fixture for thin-walled casing support plate wax parts according to claim 1, characterized in that: The crimping frame 2 is provided with a horizontal sliding groove 2, and a lead screw 2 passes through the horizontal sliding groove 2. The lower end of the lead screw 2 is fixedly connected to a large flange pressure block. The upper and lower ends of the lead screw 2 are threaded with adjusting nuts 2, and the adjusting nuts 2 abut against the crimping frame 2.

5. The anti-deformation placement fixture for thin-walled casing support plate wax parts according to claim 4, characterized in that: The large flange positioning and fixing assembly also includes a support, which is fixedly connected to the base. The support is provided with a threaded cylinder, and a screw is threadedly connected to the threaded cylinder. One end of the screw is movably connected to the translation block, and the other end of the screw is fixedly connected to a handle.

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