Turbine valve mounting seat tool

Abstract

The turbine valve mounting seat tool comprises a base for supporting and fixing a turbine valve ceramic core, a front support frame for supporting and fixing a front split structure of an aluminum-based ceramic core body on one side of the turbine valve ceramic core, and a rear support frame for supporting and fixing a rear split structure of the aluminum-based ceramic core body on one side of the turbine valve ceramic core, the rear supporting frame is provided with a bracket playing a role in bearing and a stop block arranged behind the bracket and used for stopping sliding, a V-shaped support used for bearing articles is arranged above the front supporting frame, the front jacking mechanism is arranged in front of the front supporting frame and fixed on the base, the front jacking mechanism is provided with a vertical stand column, and the front jacking mechanism is provided with a front jacking mechanism. A horizontal screw hole is formed in the stand column, a horizontal locking bolt is assembled in the horizontal screw hole, and a cushion block is assembled at the end, facing the V-shaped support, of the horizontal locking bolt. Through the front jacking mechanism, the rear supporting frame and the V-shaped support, multi-axis synchronous positioning of the turbine valve ceramic core is achieved, and the splicing accuracy is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to tooling technical field, especially in splicing tooling. BACKGROUND

[0002] The jet engine valve mounting seat ceramic core is a kind of ceramic core for precision casting, mainly used for forming the complex runner, cavity or connecting structure inside valve mounting seat. To ensure the consistency of strength and metal property, turbine valve mounting seat needs to be formed by aluminum-based ceramic core type core casting, in the casting process, the core is embedded as soluble inner mold in the cavity, after metal solidification, through certain pressure and temperature and corrosive medium, aluminum matrix is selectively dissolved, finally leaving the precision runner or special-shaped connecting interface inside mounting seat.

[0003] The general turbine valve ceramic core has aluminum-based ceramic core body arranged on both sides, and the aluminum-based ceramic core bodies on both sides are connected by an intermediate body, the intermediate body includes a hollow pipeline and a distribution plate. The traditional tooling is difficult to realize multi-axis synchronous positioning of the turbine valve ceramic core, and is prone to misalignment. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing turbine valve mounting seat tooling to solve the problems in the prior art.

[0005] The above technical purpose of the utility model is realized by the following technical scheme:

[0006] The turbine valve mounting seat tooling includes a base for supporting and fixing the turbine valve ceramic core, a front support frame for supporting and fixing the front part body structure of the aluminum-based ceramic core body on one side of the turbine valve ceramic core, and a rear support frame for supporting and fixing the rear part body structure of the aluminum-based ceramic core body on one side of the turbine valve ceramic core, the rear support frame has a bracket for supporting and a stop block arranged at the rear of the bracket for blocking sliding;

[0007] The front support frame has a V-shaped support for carrying objects above;

[0008] It also includes a front top tightening mechanism arranged in front of the front support frame and fixed on the base;

[0009] The front top tightening mechanism has a vertical column;

[0010] A horizontal screw hole is arranged on the vertical column, and a horizontal locking bolt is assembled in the horizontal screw hole;

[0011] The height of the horizontal screw hole is higher than the bottom of the V-shaped support and lower than the sum of the height of the V-shaped support and the aluminum-based ceramic core body;

[0012] The horizontal locking bolt is equipped with a cushion block at one end of the V-shaped support and a lateral rotating handle at the other end.

[0013] By adopting the above technical scheme, the front clamping mechanism drives the cushion block to abut against the front part of the aluminum-based ceramic core body through the axial advancement of the horizontal locking bolt, meanwhile, the bracket and the stop block of the rear support frame form a supporting and blocking combined structure, the bracket supports the aluminum-based ceramic core body at a horizontal height, and the stop block prevents the rear part of the aluminum-based ceramic core body from being axially displaced during splicing, in cooperation with the limiting action of the V-shaped support, the longitudinal shaft is clamped and fixed, the installation height of the horizontal locking bolt is accurately designed, which not only ensures that the bolt does not interfere with the support, but also enables the cushion block to accurately act on the stress point of the aluminum-based ceramic core body, the lateral rotating handle enables the operator to reliably lock with small torque, the tool realizes the fixation of the longitudinal shaft through the front clamping mechanism and the stop block on the rear support frame, and effectively reduces the splicing misplacement problem caused by the traditional tool;

[0014] Finally, the aluminum-based ceramic core type core is selectively dissolved by a certain pressure and temperature and a corrosive medium after metal solidification and casting, and finally leaves a precise flow passage or a special-shaped connecting interface inside the mounting seat.

[0015] In further embodiments, the front clamping mechanism comprises a vertical column and a lateral arm;

[0016] The bottom of the vertical column is fixedly connected with the base, and one end of the lateral arm is arranged above the vertical column;

[0017] A vertical screw hole is arranged on the lateral arm, and a vertical locking bolt is arranged in the vertical screw hole;

[0018] The vertical screw hole corresponds to the position of the V-shaped support;

[0019] The vertical locking bolt is equipped with a fixed block with a circular arc bottom contact surface at one end of the V-shaped support, which is called an aluminum-based ceramic core body upper surface clamping block, and is equipped with a vertical rotating handle at the other end of the V-shaped support.

[0020] By adopting the above technical scheme, the vertical locking bolt vertically rotates the handle downward to drive the aluminum-based ceramic core body upper surface clamping block to press the top of the aluminum-based ceramic core body, the circular arc surface contact design can avoid local stress concentration, the force point of the vertical locking bolt is opposite to the upper part of the V-shaped support, and cooperates with the V-shaped support limiting the horizontal movement to form a vertical downward clamping force, realizing the fixation of the vertical shaft, and realizing the multi-axis synchronous positioning with the axial fixation of the front clamping mechanism and the rear support frame, ensuring that the aluminum-based ceramic core body does not displace or deflect during splicing.

[0021] In further embodiments, an auxiliary support frame is further included.

[0022] The auxiliary support frame is arranged at a side of the rear support frame away from the front support frame;

[0023] An inclined surface is arranged above the auxiliary support frame;

[0024] The height of the inclined surface gradually decreases from front to back, and a containing groove for supporting and fixing a distribution plate of a turbine valve ceramic core is arranged on the inclined surface.

[0025] By adopting the above technical scheme, the angle of the inclined surface is the same as that of the downwardly bent distribution plate of the turbine valve ceramic core, the containing groove can be automatically centered when placed, the difficulty of manual adjustment is reduced, the shape of the containing groove is consistent with that of the distribution plate, stable support can be provided, lateral sliding of the distribution plate of the turbine valve ceramic core during splicing is prevented, and the efficiency and quality of splicing are effectively improved.

[0026] In further embodiments, a detachable supporting mechanism is arranged at the lower part behind the containing groove.

[0027] By adopting the above technical scheme, the supporting mechanism is installed in a groove, the groove is open at a side close to the rear side of the auxiliary support frame, a hook-shaped fixing member, i.e. the supporting mechanism, extending beyond the rear side of the auxiliary support frame and upwardly hooked is assembled in the groove, the top height of the supporting mechanism is higher than the height of the lowest end of the inclined surface, the supporting mechanism can cooperate with the containing groove to realize double fixation of the distribution plate, and warping of the distribution plate due to vibration during splicing is avoided.

[0028] In further embodiments, the auxiliary support frame is provided with a mounting hole;

[0029] The supporting mechanism has a bolt shaft;

[0030] The bolt shaft is detachably installed with the mounting hole, and the supporting mechanism is detachably fixed on the auxiliary support frame.

[0031] By adopting the above technical scheme, the supporting mechanism can be divided into a fixed part and an extension part, the fixed part is provided with a bushing corresponding to the position of the auxiliary support frame, the supporting mechanism is installed on the auxiliary support frame through the bolt shaft, the model of the supporting mechanism can be changed according to the size and thickness of the distribution plate to be fixed, and the adaptability of the splicing tooling is effectively improved.

[0032] In further embodiments, the bolt shaft is coated with a layer of polytetrafluoroethylene bushing.

[0033] By adopting the above technical solution, polytetrafluoroethylene (PTFE) is one of the solid materials with the lowest known coefficient of friction, which can significantly reduce the frictional resistance between moving parts, making the installation process more convenient and faster. It also has a certain degree of elasticity, which can absorb vibration and impact energy, reduce the impact of vibration on the turbine valve ceramic core during the splicing process, improve the splicing accuracy, and reduce the occurrence of misalignment.

[0034] In a further embodiment, support pins are detachably mounted on the inner surfaces of both ends of the V-shaped bracket.

[0035] The edge of the support pin that contacts the item has an arc structure.

[0036] By adopting the above technical solution, the arc edge of the support pin reduces the contact stress with the aluminum-based ceramic core, preventing surface damage to the aluminum-based ceramic core caused by hard contact. The detachable design makes it easy to replace support pins of different lengths according to the size of the aluminum-based ceramic core, adapting to multiple product specifications. The support pin and V-shaped bracket combine to form a flexible clamping surface, which allows for slight deformation of the ceramic core when it is heated, while ensuring positioning accuracy, thus avoiding casting stress concentration.

[0037] In summary, this utility model has the following beneficial effects:

[0038] 1. By setting up a front clamping mechanism and a rear support frame, the front clamping mechanism can drive the pad block to precisely press against the front part of the aluminum-based ceramic core through the axial advancement of the horizontal locking bolt. This, combined with the V-shaped bracket, forms a stable horizontal clamping force. At the same time, the bracket of the rear support frame provides a reliable support platform, while the stop block effectively prevents the axial displacement of the rear part of the aluminum-based ceramic core. This front-to-back coordinated fixing method ensures the precise positioning of the ceramic core in the longitudinal and horizontal directions, fundamentally solving the splicing misalignment problem caused by single-point fixing in traditional tooling. In the actual casting process, this structure can withstand the impact of molten metal and the influence of thermal stress, maintaining the stability of the ceramic core position and achieving the effect of multi-axis synchronous positioning and preventing splicing misalignment.

[0039] 2. With the vertical locking bolt and V-shaped bracket, the vertical locking bolt can be pushed downwards, causing the clamping block on the upper surface of the aluminum-based ceramic core, which has a rounded bottom, to evenly press the top of the ceramic core. Its rounded contact surface design can avoid damage to the ceramic core caused by local stress concentration. The vertical rotating handle provides leverage, allowing the operator to achieve reliable locking with a small torque. This vertical fixing mechanism works in conjunction with the horizontal fixing mechanism to form a three-dimensional constraint system in the X, Y, and Z axes, ensuring that the ceramic core does not shift or deflect in any direction under high-temperature casting conditions, thus achieving the effect of vertical clamping and fixing.

[0040] 3. By setting up an auxiliary support frame and a support mechanism, the inclined surface of the auxiliary support frame can match the downward bending angle of the distribution plate of the aluminum-based ceramic core. The contour of the receiving groove on it can completely accommodate part of the distribution plate, so that automatic centering and positioning can be achieved during placement, greatly reducing the difficulty of manual adjustment. The support mechanism, through its unique upward hook structure, forms a reliable support for the tail end of the distribution plate, effectively preventing the distribution plate from warping and deforming due to vibration during the splicing process. This double fixing mechanism works in conjunction with the main fixing system to make the overall force of the turbine valve ceramic core more balanced, achieving the effects of automatic centering, anti-slip, and anti-warping. Attached Figure Description

[0041] Figure 1 This is an overall schematic diagram of the present invention;

[0042] Figure 2 This is a structural schematic diagram illustrating the front support frame in this utility model;

[0043] Figure 3 This is a structural schematic diagram illustrating the auxiliary support frame in this utility model.

[0044] In the diagram, 1 is the base; 2 is the front support frame; 3 is the rear support frame; 4 is the front clamping mechanism; 41 is the column; 42 is the side arm; 5 is the auxiliary support frame; and 6 is the supporting mechanism. Detailed Implementation

[0045] The present invention will be further described in detail below with reference to the accompanying drawings.

[0046] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0047] like Figure 1 - Figure 3As shown, the turbine valve mounting fixture includes a base 1 for supporting and fixing the turbine valve ceramic core, a front support frame 2 for supporting and fixing one side of the aluminum-based ceramic core body of the turbine valve ceramic core, and a rear support frame 3 for supporting and fixing one side of the aluminum-based ceramic core body of the turbine valve ceramic core. The rear support frame 3 has a bracket that provides support and a stop block that prevents sliding behind the bracket. The front support frame 2 has a V-shaped bracket for carrying items. It also includes a front-mounted clamping mechanism 4 fixed to the base 1 and located in front of the front support frame 2. The front-mounted clamping mechanism 4 has a vertical column 41 with a horizontal screw hole. A horizontal locking bolt is installed in the horizontal screw hole. The height of the horizontal screw hole is higher than the bottom of the V-shaped bracket and lower than the sum of the heights of the V-shaped bracket and the aluminum-based ceramic core body. A pad is installed at the end of the horizontal locking bolt facing the V-shaped bracket, and a lateral rotating handle is installed at the end facing away from the V-shaped bracket.

[0048] By adopting the above technical solution, the front clamping mechanism 4 drives the pad to press against the front part of the aluminum-based ceramic core through the axial advancement of the horizontal locking bolt. At the same time, the bracket and the stop block of the rear support frame 3 form a combination structure of support and blocking. The bracket supports the aluminum-based ceramic core at a horizontal height, while the stop block prevents the rear part of the aluminum-based ceramic core from axial displacement during the splicing process. With the limiting effect of the V-shaped bracket, the longitudinal axis is clamped and fixed. The installation height of the horizontal locking bolt is precisely designed to ensure that the bolt does not interfere with the bracket and that the pad block is accurately applied to the stress point of the aluminum-based ceramic core. The lateral rotation of the handle allows the operator to achieve reliable locking with a small torque. This tooling achieves the fixation of the longitudinal axis through the front clamping mechanism 4 and the stop block on the rear support frame 3, and effectively reduces the splicing misalignment problem caused by traditional tooling through cooperation with the V-shaped bracket.

[0049] In a further embodiment, the front clamping mechanism 4 includes a column 41 and a side arm 42. The bottom of the column 41 is fixedly connected to the base 1. One end of the side arm 42 is located above the column 41. The side arm 42 is provided with a vertical screw hole. A vertical locking bolt is installed in the vertical screw hole. The vertical screw hole corresponds to the position of the V-shaped bracket. A fixing block with a bottom contact surface of arc surface is installed at the end of the vertical locking bolt facing the V-shaped bracket. This is called the aluminum-based ceramic core upper surface clamping block. A vertical rotating handle is installed at the end facing away from the V-shaped bracket.

[0050] By adopting the above technical solution, the vertical locking bolt is pushed downward by rotating the handle vertically, driving the clamp block on the upper surface of the aluminum-based ceramic core to press against the top of the aluminum-based ceramic core. Its arc-shaped contact design can avoid local stress concentration. The force application point of the vertical locking bolt is directly above the V-shaped bracket, which cooperates with the V-shaped bracket that restricts lateral movement to form a vertically downward clamping force, thereby fixing the vertical axis. This, together with the axial fixing of the front clamping mechanism 4 and the rear support frame 3, achieves multi-axis synchronous positioning, ensuring that the aluminum-based ceramic core does not shift or deflect during the splicing process.

[0051] In a further embodiment, an auxiliary support frame 5 is also included. The auxiliary support frame 5 is spaced apart on the side of the rear support frame 3 away from the front support frame 2. An inclined surface is provided above the auxiliary support frame 5. The height of the inclined surface gradually decreases from front to back. A receiving groove for supporting and fixing the distribution plate of the turbine valve ceramic core is provided on the inclined surface.

[0052] By adopting the above technical solution, the angle of the inclined surface is the same as that of the downward-bent distribution plate of the turbine valve ceramic core. The receiving groove can automatically center during placement, reducing the difficulty of manual adjustment. The shape of the receiving groove matches the shape of the distribution plate, providing stable support and preventing the distribution plate of the turbine valve ceramic core from sliding laterally during the splicing process, effectively improving the efficiency and quality of splicing.

[0053] In a further embodiment, a detachable support mechanism 6 is provided at the lower rear of the receiving groove.

[0054] By adopting the above technical solution, the support mechanism 6 is installed in a groove. The side of the groove near the rear of the auxiliary support frame 5 is open. A hook-shaped fixing member, i.e., the support mechanism 6, is installed in the groove, with an extension that extends beyond the rear of the auxiliary support frame 5 and hooks upward. The top height of the support mechanism 6 is higher than the lowest end of the inclined surface. The support mechanism 6 can cooperate with the receiving groove to achieve double fixing of the distribution plate and avoid warping due to vibration or other reasons during the splicing process.

[0055] In a further embodiment, the auxiliary support frame 5 is provided with mounting holes, and the supporting mechanism 6 has a bolt shaft. The bolt shaft and the mounting holes are detachably installed, thereby the supporting mechanism 6 is detachably fixed on the auxiliary support frame 5.

[0056] By adopting the above technical solution, the support mechanism 6 can be divided into a fixed part and an extension part. The fixed part is provided with a hole corresponding to the position of the auxiliary support frame 5. The support mechanism 6 is installed on the auxiliary support frame 5 by means of a bolt shaft. The model of the support mechanism 6 can also be changed as needed depending on the size and thickness of the distribution plate to be fixed, which effectively improves the adaptability of the splicing tooling.

[0057] In a further embodiment, the bolt shaft is covered with a layer of polytetrafluoroethylene bushing.

[0058] By adopting the above technical solution, polytetrafluoroethylene (PTFE) is one of the solid materials with the lowest known coefficient of friction, which can significantly reduce the frictional resistance between moving parts, making the installation process more convenient and faster. It also has a certain degree of elasticity, which can absorb vibration and impact energy, reduce the impact of vibration on the turbine valve ceramic core during the splicing process, improve the splicing accuracy, and reduce the occurrence of misalignment.

[0059] In a further embodiment, support pins are detachably mounted on the inner surfaces of both ends of the V-shaped bracket.

[0060] The edge of the support pin that contacts the item has a rounded structure.

[0061] By adopting the above technical solution, the arc edge of the support pin reduces the contact stress with the aluminum-based ceramic core, preventing surface damage to the aluminum-based ceramic core caused by hard contact. The detachable design makes it easy to replace support pins of different lengths according to the size of the aluminum-based ceramic core, adapting to multiple product specifications. The support pin and V-shaped bracket combine to form a flexible clamping surface, which allows for slight deformation of the ceramic core when it is heated, while ensuring positioning accuracy, thus avoiding casting stress concentration.

[0062] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0063] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A turbine valve seat tooling, comprising a base (1) for supporting and fixing a turbine valve ceramic core, a front support frame (2) for supporting a front part of an aluminum-based ceramic core body of one side of the turbine valve ceramic core, and a rear support frame (3) for supporting a rear part of the aluminum-based ceramic core body of the other side of the turbine valve ceramic core, characterized in that: the rear support frame (3) has a bracket for supporting and a stopper block arranged behind the bracket for stopping sliding; the front support frame (2) has a V-shaped bracket above for carrying objects; a front top tightening mechanism (4) is arranged in front of the front support frame (2) and fixed to the base (1); the front top tightening mechanism (4) has a vertical column (41); the vertical column (41) is provided with a horizontal screw hole, and a horizontal locking bolt is arranged in the horizontal screw hole; the height of the horizontal screw hole is higher than the bottom of the V-shaped bracket and lower than the sum of the height of the V-shaped bracket and the aluminum-based ceramic core body; a pad is arranged at one end of the horizontal locking bolt facing the V-shaped bracket, and a lateral rotating handle is arranged at the other end of the horizontal locking bolt away from the V-shaped bracket; the front top tightening mechanism (4) comprises the vertical column (41) and a side arm (42); the bottom of the vertical column (41) is fixedly connected with the base (1), and one end of the side arm (42) is arranged above the vertical column (41); the side arm (42) is provided with a vertical screw hole, and a vertical locking bolt is arranged in the vertical screw hole; the vertical screw hole corresponds to the position of the V-shaped bracket; a fixing block with a circular arc bottom contact surface is arranged at one end of the vertical locking bolt facing the V-shaped bracket, which is called an aluminum-based ceramic core upper surface clamping block, and a vertical rotating handle is arranged at the other end of the vertical locking bolt away from the V-shaped bracket; an auxiliary support frame (5) is further included; the auxiliary support frame (5) is arranged on the side of the rear support frame (3) away from the front support frame (2); an inclined surface is arranged above the auxiliary support frame (5); the height of the inclined surface gradually decreases from front to back, and a containing groove for supporting a distribution plate of the turbine valve ceramic core is arranged on the inclined surface; a detachable supporting mechanism (6) is arranged behind and below the containing groove; the auxiliary support frame (5) is provided with a mounting hole; the supporting mechanism (6) has a bolt shaft; the bolt shaft is detachably mounted with the mounting hole, so that the supporting mechanism (6) is detachably fixed on the auxiliary support frame (5); the bolt shaft is coated with a polytetrafluoroethylene bushing; support pins are detachably mounted on the inner side surfaces of both ends of the V-shaped bracket; and a circular arc structure is arranged at the edge of the end of the support pin in contact with the object. ​ ​ ​ ​ ​ ​ ​ 2. The turbine valve mounting seat tooling of claim 1, wherein: ​ ​ ​ ​ ​ 3. The turbine valve mounting seat tooling of claim 1, wherein: ​ ​ ​ ​ 4. The turbine valve mounting seat tooling of claim 3, wherein: ​ 5. The turbine valve mounting seat tooling of claim 4, wherein: ​ ​ ​ 6. The turbine valve mounting seat tooling of claim 5, wherein: ​ 7. The turbine valve mounting seat tooling of claim 1, wherein: ​ ​

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