Multifunctional shell manufacturing tool for large gas turbine blade

Abstract

The utility model relates to the field of precision casting, and specifically discloses a multifunctional shell making tool for large gas turbine blades, which comprises a force-bearing flat plate, the force-bearing flat plate is provided with a sliding groove, a sliding member is slidably connected in the sliding groove, a wax mold fixing member is detachably connected to the sliding member, a mechanical hand connecting member is fixedly connected to the force-bearing flat plate, and overturning connecting members are fixedly connected to the two sides of the force-bearing flat plate; the utility model can simultaneously make shells for blades with different numbers of pieces on one shell making tool, improves production efficiency, reduces the shell making tool design and manufacturing links for different types of blades, reduces the research and production costs of the tool, simultaneously reduces the storage and management costs of the tool, realizes shell making for different types of blades, expands the application range of the tool, effectively guarantees the stability of the shell during the shell making process, significantly reduces the size deformation of the castings, ensures that the product size precision meets high standard requirements, and improves product quality.

Description

Technical Field

[0001] This utility model relates to the field of precision casting, specifically a multi-functional shell-making tooling for large gas turbine blades. Background Technology

[0002] In industrial manufacturing, especially in the production of large gas turbine blade castings, the performance of the shell-making tooling directly affects product quality and production efficiency. Traditional shell-making tooling is usually custom-made for specific blade models. While this approach can meet the shell-making requirements of specific blade models, it has significant limitations. On the one hand, it cannot flexibly handle the shell-making requirements of other blade models. Once different blade models need to be produced, the corresponding shell-making tooling must be redesigned and manufactured, resulting in the idleness of the original tooling. This not only wastes a lot of time and money but also seriously affects production efficiency. On the other hand, during the shell-making process, it is difficult to ensure good stability for various large blade castings, which can easily lead to dimensional deformation and thus affect product quality. To address these issues, this application proposes a multifunctional shell-making tooling for large gas turbine blades. Utility Model Content

[0003] To address the existing problems, this utility model provides a multifunctional shell-making tool for large gas turbine blades, which can effectively solve the problems mentioned in the background art.

[0004] To solve the above problems, the present invention adopts the following technical solution:

[0005] A multifunctional shell-making tooling for large gas turbine blades includes a load-bearing plate with a groove. A sliding member is slidably connected in the groove. A wax mold fixing member is detachably connected to the sliding member. A robot arm connector is fixedly connected to the load-bearing plate. Flipping connectors are fixedly connected to both sides of the load-bearing plate.

[0006] As a further improvement of this utility model: the sliding grooves are two in number and symmetrically distributed on the load-bearing plate, and each sliding groove contains at least one sliding element.

[0007] As a further embodiment of this utility model: the load-bearing plate is provided with a plurality of fixing holes I on both sides of the sliding groove along the sliding direction of the sliding member, and the sliding member is provided with fixing holes II that match the fixing holes, and the fixing holes I and fixing holes II are used to fix the sliding member.

[0008] As a further improvement of this utility model, the fixing holes on both sides of the two grooves are symmetrically distributed.

[0009] As a further improvement of this utility model, the robotic arm connector is located in the middle of the top surface of the load-bearing plate.

[0010] As a further improvement of this utility model: the wax mold fixing component is a disc or a strip, and the wax mold fixing component is fixed to at least one sliding component.

[0011] As a further improvement of this utility model, the wax mold fixing component is provided with wax mold fixing strip holes.

[0012] As a further embodiment of this utility model: the flipping connector is symmetrically fixed on both ends of the load-bearing plate and located at the center of the end face, and the flipping connector is used to connect with the flipping machine.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model can simultaneously produce shells for different numbers of blades on a single shell-making fixture. Compared with traditional shell-making fixtures, it greatly shortens the shell-making cycle, improves production efficiency, reduces the design and manufacturing steps of shell-making fixtures for different types of blades, reduces the R&D and production costs of the fixtures, and also reduces the storage and management costs of the fixtures. It enables the production of shells for different types of blades, expands the applicability of the fixtures, provides strong support for enterprises to produce diversified products, effectively ensures the stability of the mold shell during the shell-making process, significantly reduces the dimensional deformation of the castings, ensures that the product dimensional accuracy meets high standards, and improves product quality. Attached Figure Description

[0014] Figure 1 A three-dimensional schematic diagram of the overall structure of a multi-functional shell-making tooling for large gas turbine blades;

[0015] Figure 2 Another perspective three-dimensional schematic diagram of the overall structure of a multi-functional shell-making tooling for large gas turbine blades;

[0016] Figure 3 This is a top view of the overall structure of a multifunctional shell-making tool for large gas turbine blades.

[0017] In the diagram: 1. Load-bearing plate; 2. Slide groove; 3. Sliding component; 4. Wax model fixing component; 5. Robot arm connector; 6. Flip connector; 7. Fixing hole one; 8. Fixing hole two; 9. Wax model fixing strip hole; 10. Threaded hole. Detailed Implementation

[0018] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Combination Figures 1 to 3This embodiment describes a multi-functional shell-making fixture for large gas turbine blades. It includes a load-bearing plate 1, which is the main load-bearing structure of the entire fixture. To ensure that the large blades do not deform under stress during the shell-making process, the design thickness is generally between 15mm and 50mm. The material selection must consider a certain degree of corrosion and oxidation resistance; stainless steel or carbon steel is selected and surface-treated. The load-bearing plate 1 has a sliding groove 2, within which a sliding component 3 is slidably connected to flexibly adjust the spacing dimensions according to different blade models. A wax mold fixing component 4 is detachably connected to the sliding component 3. A robotic arm connecting component 5 is fixedly connected to the load-bearing plate 1, and flipping connecting components 6 are fixedly connected to both sides of the load-bearing plate 1.

[0020] Furthermore, there are two sliding grooves 2 symmetrically distributed on the load-bearing plate 1, and each sliding groove 2 contains a sliding element 3. Multiple sliding elements 3 can also be provided. In this example, one sliding element 3 is provided in each of the two sliding grooves 2. Several fixing holes 7 are provided on both sides of the load-bearing plate 1 along the sliding direction of the sliding element 3. The fixing holes 7 on both sides of the two sliding grooves 2 are symmetrically distributed and evenly spaced. The sliding element 3 is provided with four fixing holes 8 that match the fixing holes. Both fixing holes 7 and fixing holes 8 are threaded holes. After the sliding element 3 slides to the designated position, it is fixed by bolts passing through fixing holes 8 and threadedly connecting to fixing holes 7.

[0021] Furthermore, the sliding member 3 has a U-shaped groove structure on both sides, which is used to engage and slide with the sliding groove 2 on both sides of the load-bearing plate 1.

[0022] Furthermore, the robotic arm connector 5 is located in the middle of the top surface of the load-bearing plate 1. The robotic arm connector 5 is locked and fixed to the load-bearing plate 1 by four screws. After the blade is installed, it can maintain balance as much as possible, avoid tilting, and reduce the stress on the connection part.

[0023] The wax model fixing component 4 is a disc or a strip, and it is fixed to the sliding component 3. When the wax model fixing component 4 is large, it can also be fixed to multiple sliding components 3. The wax model fixing component 4 is locked to the sliding component 3 with bolts. In this example, the wax model fixing component 4 is a strip, and wax model fixing slots 9 are provided at both ends of the strip. The wax model fixing slots 9 are used to pass the screws on the wax model assembly through the holes and fix the wax model with nuts. The two wax model fixing slots 9 are symmetrically arranged to ensure that the force is evenly distributed at both ends of the strip. The wax model fixing slots 9 are strip-shaped holes, which facilitates the adjustment of the spacing and can accommodate discs and strips of various sizes to adapt to different sizes of blade wax model structures.

[0024] The flipping connector 6 is symmetrically fixed on both ends of the load-bearing plate 1 and located at the center of the end face. The flipping connector 6 is used to connect with the flipping machine, which facilitates the use of the tooling in conjunction with the flipping machine. During the wax model assembly process and the tooling assembly process, it facilitates the rotation of the overall wax model and tooling.

[0025] Furthermore, a threaded hole 10 is provided in the middle of the surface of the load-bearing plate 1 away from the robot arm connector 5, which can also be used to fix a large blade and realize the suspension shell making of a single large blade wax model.

[0026] The operation process is as follows: During the wax model assembly process, a suitable screw is placed at the riser position. Turbine blades generally only have one gate and riser at the tenon position. The screw is placed in the riser. After the assembly is completed, the flip connector 6 and the robot arm connector 5 are specially matched on the load-bearing plate 1. The position of the sliding part 3 is adjusted and the sliding part 3 is fixed. The wax model fixing part 4 is fixed together with the sliding part 3. The assembled wax model is fixed on the wax model fixing part 4. The robot arm connector 5 is connected to the robot arm to perform the slurry sprinkling and sand spreading operations for shell making.

[0027] During wax model installation, the screw on the wax model assembly can be directly connected to the sliding part 3, thereby enabling the tooling to suspend two blade wax model assemblies. Depending on the outer contour dimensions of the guide blades, two guide blades can also be suspended on each side of the wax model fixing part 4, thereby enabling the tooling to suspend four guide blades. This allows the tooling to simultaneously suspend multiple turbine blades for shell making. Depending on the outer contour dimensions of the turbine blades, two or four turbine blades can be suspended on the tooling, effectively improving shell making efficiency while ensuring shell making quality.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-functional shell-making tooling for large gas turbine blades, characterized in that, The device includes a load-bearing plate with a groove, a sliding member slidably connected in the groove, a wax mold fixing member detachably connected to the sliding member, a robot arm connector fixedly connected to the load-bearing plate, and flip-over connectors fixedly connected to both sides of the load-bearing plate.

2. The multifunctional shell-making tooling for large gas turbine blades according to claim 1, characterized in that, The slide grooves are two in number and symmetrically distributed on the load-bearing plate, and each slide groove contains at least one sliding element.

3. The multifunctional shell-making tooling for large gas turbine blades according to claim 1, characterized in that, The load-bearing plate is located on both sides of the slide groove and has several fixing holes 1 along the sliding direction of the sliding member. The sliding member is provided with fixing holes 2 that match the fixing holes. The fixing holes 1 and fixing holes 2 are used to fix the sliding member.

4. The multifunctional shell-making tooling for large gas turbine blades according to claim 3, characterized in that, The fixing holes on both sides of the two grooves are symmetrically distributed.

5. The multifunctional shell-making tooling for large gas turbine blades according to claim 1, characterized in that, The robotic arm connector is located in the middle of the top surface of the load-bearing plate.

6. The multifunctional shell-making tooling for large gas turbine blades according to claim 1, characterized in that, The wax model fixing component is a disc or a strip, and the wax model fixing component is fixed to at least one sliding component.

7. A multifunctional shell-making tooling for large gas turbine blades according to claim 6, characterized in that, The wax mold fixing component is provided with wax mold fixing strip holes.

8. The multifunctional shell-making tooling for large gas turbine blades according to claim 1, characterized in that, The flipping connector is symmetrically fixed to both ends of the load-bearing plate and located at the center of the end face. The flipping connector is used to connect with the flipping machine.

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