A turbine shell support tooling

Abstract

The utility model provides a kind of turbine formwork support frock, including support part, frame part, chassis and butt joint seat.Support part contains semicircular frame and extension part, with workpiece conical surface adhering automatic centering, extension part limit prevents shaking;Frame part is constituted by horizontal and vertical connecting rod and oblique muscle, gravity center is low, and stability is good;Chassis is closely matched with butt joint seat, convenient butt joint and prevent metal liquid leakage, butt joint seat is butted with vacuum furnace lifting platform;In vertical projection plane, frame part is trapezoidal, provide greater operating space;Extension part is tangent with semicircular frame;Chassis is circular and inscribed with butt joint seat;Butt joint seat circumferential distribution fastening screw;Semicircular frame and butt joint seat center of circle are same vertical line;Workpiece and semicircular frame are closely adhered.The frock realizes accurate centering support, improves machining precision, enhances stability, convenient operation, improves production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of investment casting tooling technology, and in particular to a turbine mold shell support tooling. Background Technology

[0002] In the field of turbine mold housing manufacturing, existing support tooling suffers from multi-dimensional technical defects, which seriously affect production efficiency and product quality. The main problems include: Insufficient centering accuracy is one of the core issues. Traditional mechanical clamping or simple frame structures may not provide effective and stable constraints on the melting vessel or casting components, easily leading to shaking or displacement under high temperature and high pressure conditions. During casting, the workpiece is prone to shifting due to thermal expansion or vibration, causing the pouring point to deviate from the center and resulting in the risk of molten steel splashing and leakage. The conflict between space utilization and operational convenience is prominent. While rectangular or equilateral polygonal frames are stable, they restrict the operating space, limiting operations such as the maximum size of the mold shell and molten steel injection, posing safety hazards. Non-collinearity of the centers of the components causes tooling tilting, and uneven distribution of fastening screws may lead to loosening.

[0003] Therefore, we propose a turbine mold shell support fixture. Utility Model Content

[0004] Therefore, it is necessary to address the technical problems of existing turbine mold housing support fixtures, such as insufficient centering accuracy, prominent contradiction between space utilization and operational convenience, non-collinearity of the centers leading to fixture tilting, and uneven distribution of fastening screws causing loosening. This would enable a turbine mold housing support fixture to provide precise workpiece positioning, sufficient operating space, stable fixture and firm connection during the turbine mold housing manufacturing process, thereby improving production efficiency and product quality.

[0005] This utility model provides a turbine mold shell support fixture, including a support part, a frame part, a chassis, and a docking seat. The support part includes a semi-circular frame and an extension connected to the opening of the semi-circular frame. The semi-circular frame is parallel to the horizontal plane, and the end of the extension is higher than the root in the vertical direction. Automatic centering is achieved by the semi-circular frame fitting against the conical surface of the workpiece. The extension plays a limiting and anti-swaying role, ensuring the stability of the workpiece position during processing and improving processing accuracy. The frame part is formed by multiple intersecting connecting rods to form a frame structure. The support part is connected to the center of the frame through connectors, ensuring that the support fixture has a low center of gravity and high stability. It is good and can evenly support the workpiece. At the same time, the horizontal connecting rod and the vertical connecting rod on the side of the frame near the support are connected by diagonal ribs to enhance the strength and stability of the frame and can withstand the weight of the support and the workpiece as well as the external forces during processing. The chassis is connected to the end of the frame away from the support and fits tightly with the docking seat. The chassis is tangent to the docking seat and the docking seat is higher than the chassis, which facilitates docking and effectively prevents leakage of molten metal during casting. The docking seat is connected to the circumferential side wall of the chassis and is used to dock with the vacuum furnace lifting platform to ensure that the entire support fixture is stably installed on the vacuum furnace lifting platform and will not shake or shift during vacuum furnace operation.

[0006] In other embodiments, the frame portion is trapezoidal on the vertical projection plane, and the opening of the semi-circular frame faces the long side of the frame portion. This design provides a larger working space, which facilitates operations such as installing molds, injecting molten metal, and removing finished products, thereby improving production efficiency. At the same time, the trapezoidal structure enhances the stability of the supporting tooling to a certain extent and can also disperse external forces, reducing deformation or damage caused by excessive local stress.

[0007] In other embodiments, the extension is tangent to the semi-circular frame, making the connection between the extension and the semi-circular frame smoother, reducing stress concentration, improving the strength and stability of the support, and making the contact between the extension and the workpiece more uniform, enhancing the limiting and anti-shaking effects, ensuring smooth placement and removal of the workpiece, and ensuring that the force can be evenly transmitted to the semi-circular frame.

[0008] In other embodiments, both the chassis and the docking seat are circular, with the chassis tangent to the docking seat and the docking seat higher than the chassis. The circular design ensures that the chassis and the docking seat are subjected to uniform force, reducing stress concentration and improving strength and stability. The chassis being tangent to the docking seat ensures a tight connection and facilitates the sealing of molten metal. The docking seat being higher than the chassis facilitates docking with the vacuum furnace lifting platform and protects the chassis.

[0009] In other embodiments, at least three fastening screws are equidistantly distributed in a ring around the docking seat. The centering connection is achieved by multiple fastening screws, ensuring that the center of the lifting platform and the center of the semi-circular frame are on the same vertical line. This provides sufficient connecting force during the docking process, allowing the docking seat and the lifting platform to be tightly connected, thus ensuring the centering support effect of the support fixture on the workpiece.

[0010] In other embodiments, the center of the semi-circular frame and the center of the docking seat are on the same vertical line, ensuring the accuracy of the support fixture in centering the workpiece, so that the center of gravity of the entire support fixture is located on the vertical line, and the center of the workpiece coincides with the vertical line when supporting the workpiece, thus achieving accurate centering support.

[0011] In other embodiments, a workpiece is attached to the inner wall of the semi-circular frame, and the section of the workpiece in contact with the semi-circular frame is tapered. In this embodiment, the workpiece is a turbine mold shell, which enables the semi-circular frame to fit tightly with the turbine mold shell. The workpiece position is automatically adjusted through the interaction of the tapered surfaces to achieve centering support, while enhancing the support force of the support part on the workpiece and preventing the workpiece from shaking or falling off during processing. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is a top view of the present invention.

[0014] Figure 3 This is a front view of the connection structure between the supporting fixture, the workpiece, and the vacuum furnace lifting platform in this utility model.

[0015] Figure 4 This is a perspective view of the connection structure between the supporting fixture, the workpiece, and the vacuum furnace lifting platform in this utility model.

[0016] in: 100. Support section; 110. Semi-circular frame; 120. Extension section; 200. Frame section; 210. Horizontal connecting rod; 220. Longitudinal connecting rod; 230. Diagonal rib; 300. Chassis; 400. Connecting seat; 410. Fastening screw; 1000. Workpiece; 2000. Vacuum furnace lifting platform. Detailed Implementation

[0017] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0018] like Figures 1-4As shown, this embodiment discloses a turbine mold shell support fixture, including a support part 100, a frame part 200, a chassis 300, and a docking seat 400. The docking seat 400 is used to dock with a vacuum furnace lifting platform 2000. This docking method ensures that the entire support fixture is stably installed on the vacuum furnace lifting platform 2000. During various operations in the vacuum furnace, such as heating and cooling, the support fixture will not shake or shift due to the movement of the lifting platform 2000 or changes in the furnace environment. The precise docking of the docking seat 400 with the vacuum furnace lifting platform 2000 is the foundation for the stable operation of the entire support fixture. Through specific structural design, such as a shape and size that matches the lifting platform 2000, and the use of high-strength materials, it ensures that it can withstand various external forces without damage after docking. The support part 100 supports the workpiece 1000 and centers it. In the manufacturing process of the turbine mold shell, the centering of the workpiece 1000 is crucial, as it directly affects the subsequent processing accuracy and quality of the workpiece 1000. The support part 100, through a specific structural design, can accurately locate the center position of the workpiece 1000 and fix it in that position, ensuring that the workpiece 1000 will not shift due to external forces during subsequent processing, thus guaranteeing that the processed turbine mold shell meets the design requirements. The semi-circular frame 110 is designed to match specific parts of the workpiece 1000, automatically adjusting the position of the workpiece 1000 through contact and interaction with it, so that its center coincides with the center of the semi-circular frame 110. Simultaneously, the presence of the extension part 120 further enhances this centering effect, restricting the movement of the workpiece 1000 in other directions and ensuring that the workpiece 1000 maintains a stable position in three-dimensional space. The structural design of the frame part 200 allows for more space, facilitating subsequent operations. In the manufacturing process of the turbine mold shell, in addition to supporting the workpiece 1000, various operations are required, such as installing the mold, injecting molten metal, and removing the finished product. While ensuring its own strength, the frame section 200 minimizes its occupation of the surrounding space, providing more operating space for these operations and improving production efficiency. The cooperation between the chassis 300 and the docking seat 400 prevents molten metal leakage. In the manufacturing process of the turbine mold shell, molten metal is required for casting. If the molten metal leaks, it will not only waste materials, but may also cause damage to surrounding equipment and personnel.

[0019] like Figures 1-4As shown, the support 100 in this embodiment includes a semi-circular frame 110 and an extension 120 connected to the opening of the semi-circular frame 110. The semi-circular frame 110 is arranged parallel to the horizontal plane. This parallel arrangement can ensure that the support force of the semi-circular frame 110 on the workpiece 1000 is evenly distributed, and avoid deformation or damage to the workpiece 1000 due to uneven support force. Furthermore, in the vertical direction, the end of the extension 120 is higher than the root of the extension 120. This height difference design allows the extension 120 to not only serve as a limiting function but also to exert a downward pressure on the workpiece 1000, further enhancing the stability of the workpiece 1000 and preventing it from shaking due to vibration during processing. When the workpiece 1000 is placed on the semi-circular frame 110, the end of the extension 120 contacts the workpiece 1000. Since the end is higher than the root, it will exert a downward component force on the workpiece 1000. This component force can counteract the upward force that the workpiece 1000 may experience during processing, such as the force generated by vibration, thereby maintaining the stability of the workpiece 1000. The semi-circular frame 110 supports the conical surface of the workpiece 1000, providing centering support. The turbine mold shell workpiece 1000 typically has a specific conical surface, and the shape of the semi-circular frame 110 matches this surface. Through contact with the workpiece 1000, the frame automatically adjusts the position of the workpiece 1000, aligning its center with the center of the semi-circular frame 110, thus achieving centering support. Simultaneously, the extension 120 provides limiting and prevents wobbling. Located on both sides or around the workpiece 1000, the extension 120 restricts movement in other directions, ensuring that the workpiece 1000 does not shift or wobble due to external forces during processing, thus guaranteeing processing accuracy.

[0020] like Figures 1-4 As shown, the frame 200 in this embodiment is a frame structure formed by multiple intersecting horizontal connecting rods 210 and vertical connecting rods 220. This frame structure has high strength and stability, and can withstand the weight of the support 100 and the workpiece 1000, as well as various external forces that may be generated during processing. The support 100 is connected to the frame by connectors. The selection and design of the connectors need to consider the firmness and stability of the connection, ensuring that the support 100 and the frame 200 will not loosen or separate due to external forces. Furthermore, in the vertical projection plane, the support 100 is located at the center of the frame 200. This central position design can keep the center of gravity of the entire support fixture at a low position, improve the stability of the support fixture, and also facilitate uniform support for the workpiece 1000. The connection between the horizontal connecting rods 210 and the vertical connecting rods 220 can be achieved by welding, bolting, or other methods. The connectors need to have sufficient strength and rigidity to withstand the weight of the support 100 and the workpiece 1000, as well as the vibration and impact forces generated during processing.

[0021] like Figure 1 and Figure 2 As shown, in this embodiment, the chassis 300 is connected to the end of the frame 200 away from the support 100. As the bottom structure of the support fixture, the chassis 300 needs to have sufficient strength and stability to withstand the weight of the entire support fixture and various external forces that may occur during processing. Simultaneously, the chassis 300 also needs to fit tightly with the docking seat 400 to ensure that the molten metal does not leak.

[0022] In this embodiment, the docking seat 400 is connected to the circumferential side wall of the chassis 300. The design of the docking seat 400 needs to take into account the docking method and accuracy with the vacuum furnace lifting platform 2000. The docking seat 400 typically adopts a shape and size that matches the lifting platform 2000 to ensure accurate docking. At the same time, the docking seat 400 also needs to be equipped with positioning devices, such as positioning pins or positioning holes, to further improve the docking accuracy and ensure that the center of the lifting platform 2000 and the center of the semi-circular frame 110 are on the same vertical line.

[0023] In this embodiment, the frame portion 200 is trapezoidal on the vertical projection plane, and the opening of the semi-circular frame 110 faces the long side of the frame portion 200. This design provides a larger working space. During the manufacturing process of the turbine mold housing, various operations are required, such as installing the mold, injecting molten metal, and removing the finished product. A larger working space facilitates these operations and improves production efficiency. Simultaneously, the trapezoidal frame portion 200 structure can enhance the stability of the supporting tooling to a certain extent. Furthermore, the trapezoidal frame portion 200 structure can also disperse external forces to a certain extent, reducing deformation or damage caused by excessive local stress.

[0024] In this embodiment, the extension 120 is tangent to the semi-circular frame 110. This tangential design allows for a smoother connection between the extension 120 and the semi-circular frame 110, reducing stress concentration and improving the strength and stability of the support 100. Simultaneously, the tangential design also ensures more uniform contact between the extension 120 and the workpiece 1000, enhancing the limiting and anti-shaking effects. Furthermore, it ensures a perfect connection between the extension 120 and the semi-circular frame 110 without obstructing the placement and removal of the workpiece 1000. This design allows the force to be evenly transmitted to the semi-circular frame 110 when the extension 120 is subjected to external forces, reducing localized stress concentration and thus improving the overall strength and stability of the support 100. In addition, the tangential design also ensures a tighter and more uniform contact between the extension 120 and the workpiece 1000, enhancing the limiting and anti-shaking effects and ensuring that the workpiece 1000 does not shift or shake during processing due to external forces.

[0025] In this embodiment, both the chassis 300 and the docking seat 400 are circular, with the chassis 300 tangent to the docking seat 400, and the docking seat 400 being higher than the chassis 300. The circular design allows for more even distribution of force between the chassis 300 and the docking seat 400, reducing stress concentration and improving their strength and stability. The tangent design of the chassis 300 to the docking seat 400 ensures a tighter connection between the two and also facilitates the sealing of the molten metal, preventing leakage. The higher height of the docking seat 400 compared to the chassis 300 facilitates docking with the vacuum furnace lifting platform 2000 and also provides some protection for the chassis 300 from external environmental damage.

[0026] In this embodiment, at least three fastening screws 410 are equidistantly distributed in a ring around the docking seat 400. These screws are tightened to ensure alignment, guaranteeing that the center of the lifting platform 2000 and the center of the semi-circular frame 110 are on the same vertical line. During docking, the fastening screws 410 provide sufficient connecting force to tightly connect the docking seat 400 and the lifting platform 2000. This alignment also ensures accurate centering of the two components, guaranteeing the centering support effect of the support fixture on the workpiece 1000.

[0027] In this embodiment, the center of the semi-circular frame 110 and the center of the docking seat 400 are on the same vertical line, ensuring the accuracy of the centering support of the workpiece 1000. When the center of the semi-circular frame 110 and the center of the docking seat 400 are on the same vertical line, it means that the center of gravity of the entire support fixture is located on this vertical line. When supporting the workpiece 1000, the center of the workpiece 1000 can also coincide with this vertical line, thereby achieving accurate centering support.

[0028] In this embodiment, a diagonal brace 230 connects the horizontal connecting rod 210 and the longitudinal connecting rod 220 on the side of the frame portion 200 near the support portion 100. The diagonal brace 230 enhances the strength and stability of the frame portion 200. When the frame portion 200 is subjected to external forces, the diagonal brace 230 can disperse some of the stress, reducing the force on the horizontal connecting rod 210 and the longitudinal connecting rod 220, thereby preventing deformation or damage to the frame portion 200. Simultaneously, the diagonal brace 230 can also adjust the rigidity of the frame portion 200 to a certain extent, allowing it to better adapt to different processing requirements.

[0029] In this embodiment, a workpiece 1000 is attached to the inner wall of the semi-circular frame 110, and the section of the workpiece 1000 in contact with the semi-circular frame 110 is tapered. In this embodiment, the workpiece 1000 is a turbine mold shell, which enables the semi-circular frame 110 and the turbine mold shell to fit tightly together. Through the interaction of the tapered surfaces, the semi-circular frame 110 can automatically adjust the position of the workpiece 1000 so that its center coincides with the center of the semi-circular frame 110, achieving centering support. At the same time, the tight fit design also enhances the supporting force of the support part 100 on the workpiece 1000, preventing the workpiece 1000 from shaking or falling off during processing due to vibration or external force.

[0030] In this embodiment, the specific working principle is as follows: When using this turbine mold housing support fixture, first align the docking seat 400 with the vacuum furnace lifting platform 2000. Use the fastening screws 410 to achieve centering, ensuring that the center of the lifting platform 2000 and the center of the semi-circular frame 110 are on the same vertical line, and simultaneously ensuring that the center of the semi-circular frame 110 and the center of the docking seat 400 are also on the same vertical line.

[0031] After docking, the turbine mold shell workpiece 1000 is placed on the semi-circular frame 110. Because the inner wall of the semi-circular frame 110 fits against the conical surface of the workpiece 1000, the interaction between them allows the semi-circular frame 110 to automatically adjust the position of the workpiece 1000, aligning its center with the center of the semi-circular frame 110, thus achieving centering support. Simultaneously, the extension 120 connected to the opening of the semi-circular frame 110, with its end higher than its root, acts as a limiting element around the workpiece 1000, preventing it from shaking or shifting during processing due to vibration or external forces. The frame section 200 is formed by a plurality of intersecting horizontal connecting rods 210 and vertical connecting rods 220 to provide stable support for the support section 100. Furthermore, the diagonal rods 230 connecting the horizontal connecting rods 210 and the vertical connecting rods 220 on the side near the support section 100 further enhance the strength and stability of the frame section 200, enabling it to withstand the weight of the support section 100 and the workpiece 1000, as well as various external forces generated during the processing.

[0032] The chassis 300 is connected to the end of the frame 200 away from the support 100, and fits tightly with the mating seat 400. The chassis 300 is tangent to the mating seat 400, and the mating seat 400 is higher than the chassis 300. This design not only facilitates docking but also effectively prevents molten metal leakage during casting. During the manufacturing process of the turbine mold housing, such as when molten metal is being cast, the entire support fixture can stably support the workpiece 1000, ensuring accurate injection of molten metal into the mold, and preventing issues such as unstable support or molten metal leakage from affecting product quality and production safety. Through the coordinated work of the various components of this turbine mold housing support fixture, stable and precise support for the turbine mold housing workpiece 1000 is achieved, improving the machining accuracy and production efficiency of the turbine mold housing.

[0033] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A turbine mold shell support fixture, characterized in that, include: The support includes a semi-circular frame and an extension connected to the opening of the semi-circular frame. The semi-circular frame is arranged parallel to the horizontal plane, and in the vertical direction, the end of the extension is higher than the root of the extension. The frame section is a frame structure formed by multiple intersecting horizontal and vertical connecting rods. The support section is connected to the frame by connectors, and the support section is located at the center of the frame section on the vertical projection plane. A chassis, which is connected to the end of the frame portion on the side away from the support portion; The docking seat is connected to the circumferential side wall of the chassis.

2. The turbine mold shell support fixture as described in claim 1, characterized in that: On the projection plane in the vertical direction, the frame portion is trapezoidal, and the opening of the semi-circular frame faces the long side of the frame portion.

3. The turbine mold shell support fixture as described in claim 1, characterized in that: The extension is tangent to the semi-circular frame.

4. The turbine mold shell support fixture as described in claim 1, characterized in that: Both the chassis and the docking seat are circular, with the chassis being tangent to the docking seat, and the height of the docking seat being greater than the height of the chassis.

5. The turbine mold shell support fixture as described in claim 4, characterized in that: The docking seat has at least three fastening screws distributed equidistantly in a circumferential ring.

6. The turbine mold shell support fixture as described in claim 4, characterized in that: The center of the semi-circular frame and the center of the docking seat are on the same vertical line.

7. The turbine mold shell support fixture as described in claim 1, characterized in that: The horizontal connecting rod and the vertical connecting rod on the side of the frame near the support are connected by diagonal ribs.

8. The turbine mold shell support fixture as described in claim 1, characterized in that: The workpiece is attached to the inner wall of the semi-circular frame, and the section of the workpiece that contacts the semi-circular frame is tapered.

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