Fixture for processing coaxiality of blade handle part of gas turbine

Abstract

The clamp comprises a base, a clamping assembly and a cover plate, a plurality of fixing grooves are formed in the base at equal intervals, first connecting pieces are arranged in the fixing grooves, the first connecting pieces are configured to connect the base to a machine tool, the clamping assembly comprises a hydraulic piece and an extrusion piece, and the hydraulic piece and the extrusion piece are arranged on the base. The hydraulic part comprises a mounting part and a clamping part, the mounting part is fixedly mounted on the base through the cover plate, the clamping part is configured to clamp a blade handle part, a liquid storage channel is formed in the clamping part, an extrusion part is arranged at an opening of the liquid storage channel, and the extrusion part is configured to extrude liquid in the liquid storage channel so as to enable the inner wall of the clamping part to generate strain; and the blade handle part is extruded, so that the blade handle part is fixed. According to the clamp, the liquid in the liquid storage channel is extruded through the extrusion piece, so that the inner wall of the clamping part generates strain to fix the blade handle part, uniform and stable clamping force is provided for the blade handle part, and the machining precision of the coaxiality of the blade handle part of the gas turbine is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vane processing technical field especially, a kind of fixture of gas turbine vane handle portion coaxiality processing. BACKGROUND

[0002] In the field of gas turbine manufacturing, the coaxiality processing precision of vane handle portion plays a decisive role in the stable operation and performance of gas turbine. In the processing process, due to the action of cutting force, machine tool vibration and other complex external forces, the traditional fixture is difficult to firmly fix the vane handle portion, resulting in displacement of the vane, increasing the product's reject rate, increasing production cost, and affecting the overall performance of the gas turbine.

[0003] The traditional gas turbine vane handle portion processing fixture has the problem of insufficient clamping stability. UTILITY MODEL CONTENT

[0004] To solve the related technical problems, the purpose of the utility model is to provide a kind of fixture of gas turbine vane handle portion coaxiality processing, to solve the problem of insufficient clamping stability.

[0005] To achieve the above-mentioned purpose, the utility model embodiment adopts the following technical solutions:

[0006] A kind of fixture of gas turbine vane handle portion coaxiality processing, it includes base, clamping assembly and cover plate, wherein:

[0007] A plurality of fixed slots are provided on the base at equal intervals, a first connecting piece is provided in the fixed slot, the first connecting piece is configured to connect the base to the machine tool,

[0008] The clamping assembly includes a hydraulic component and an extrusion component, the hydraulic component includes a mounting portion and a clamping portion, the mounting portion is fixedly installed on the base through the cover plate, the clamping portion is configured to clamp the vane handle portion, a liquid storage channel is provided in the clamping portion, an extrusion component is provided at the opening of the liquid storage channel, the extrusion component is configured to extrude the liquid in the liquid storage channel to cause the inner wall of the clamping portion to strain and extrude the vane handle portion, thereby fixing the vane handle portion.

[0009] Optionally, the clamping assembly further includes a spring sleeve, the spring sleeve is arranged between the clamping portion and the vane handle portion, the spring sleeve is configured to extrude the liquid in the liquid storage channel through the extrusion component to cause the inner wall of the clamping portion to strain and extrude the spring sleeve inward, thereby clamping and fixing the vane handle portion.

[0010] Optionally, a support portion is provided on the spring sleeve, the support portion is at least configured to prevent the spring sleeve from completely entering the clamping portion.

[0011] Optionally, the cover plate comprises a connecting portion and a fixing portion, the fixing portion is arranged on the connecting portion, and the fixing portion and the connecting portion are arranged perpendicular to each other, a plurality of first threaded holes are arranged on the connecting portion at equal intervals, a second threaded hole corresponding to the first threaded hole is arranged on the base, the first threaded hole and the second threaded hole are connected through a second connecting piece, and the cover plate is fixedly connected to the base, and the fixing portion is configured to fix the hydraulic component on the base.

[0012] Optionally, a guide mounting groove is arranged at a middle position of the base, and an inner wall of the guide mounting groove is arranged to be inclined.

[0013] Optionally, the mounting portion comprises a stabilizing portion and a protruding portion, the stabilizing portion is arranged in the guide mounting groove, and the protruding portion is arranged at a top end of the base and is fixedly connected to the base through the cover plate.

[0014] Optionally, a first mounting hole is arranged at a middle position of a bottom of the base, and the first mounting hole is coaxially arranged with the guide mounting groove.

[0015] The gas turbine blade handle coaxiality machining clamp provided by the utility model has the following beneficial effects compared with the prior art:

[0016] 1. The liquid in the liquid storage channel is extruded by the extrusion piece, the inner wall of the clamping portion is strained to fix the blade handle, uniform and stable clamping force is provided for the blade handle, and the machining precision of the gas turbine blade handle coaxiality is improved.

[0017] 2. The spring sleeve is arranged, the spring sleeve can better fit the shape of the blade handle, the adaptability to different specifications of the blade handle is enhanced, the clamping precision is further improved, the elasticity of the spring sleeve can also buffer machining vibration, damage to the blade handle is reduced, and the machining quality is ensured.

[0018] 3. The support portion is arranged on the spring sleeve, the spring sleeve is effectively prevented from entering the clamping portion completely due to excessive extrusion force, the spring sleeve is ensured to be always in a suitable position to maintain a stable clamping state, and the reliability of clamping of the clamp is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate and understand the technical scheme in the embodiments of the utility model, the drawings needed to be used in the background art and the embodiment description of the utility model will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the utility model and the drawings without creating labor.

[0020] Fig. 1 It is a structure schematic view of the gas turbine blade handle coaxiality machining clamp provided by the utility model embodiment.

[0021] Fig. 2 is a sectional view of the clamp for processing the coaxiality of the handle part of the gas turbine blade provided by the embodiment of the utility model,

[0022] Fig. 3 is a sectional view of the hydraulic part of the clamp for processing the coaxiality of the handle part of the gas turbine blade provided by the embodiment of the utility model,

[0023] Fig. 4 is a top view of the clamp for processing the coaxiality of the handle part of the gas turbine blade provided by the embodiment of the utility model. DETAILED DESCRIPTION

[0024] The utility model will be described further in detail below with reference to the drawings.

[0025] In order to facilitate understanding the utility model, the utility model will be described more fully below with reference to the relevant drawings. The preferred embodiments of the utility model are shown in the drawings. However, the utility model can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive. It should be noted that when a component is referred to as "fixed to" another component, it can be directly on another component or there can be a middle component. When a component is considered "connected" to another component, it can be directly connected to another component or there can be a middle component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only implementation. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as understood by those skilled in the art of the technology to which the utility model belongs. The terms used in the specification of the utility model herein are only for the purpose of describing the specific embodiments and are not intended to limit the utility model. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0026] Please refer to Figs. 1 to 4 The embodiment provides a clamp for processing the coaxiality of the handle part of the gas turbine blade, which comprises a base 10, a clamping assembly 20 and a cover plate 30, wherein:

[0027] A plurality of fixing grooves 11 are equidistantly spaced apart on the base 10, a first connecting piece 12 is arranged in the fixing groove 11, the first connecting piece 12 is configured to connect the base 10 on the machine tool,

[0028] The clamping assembly 20 comprises a hydraulic part 21 and an extrusion part 22. The hydraulic part 21 comprises a mounting part 210 and a clamping part 211. The mounting part 210 is fixedly mounted on the base 10 through the cover plate 30. The clamping part 211 is configured to clamp the blade handle. A liquid storage channel 212 is arranged in the clamping part 211. The extrusion part 22 is arranged at the opening of the liquid storage channel 212 and is configured to extrude the liquid in the liquid storage channel 212 to cause the inner wall of the clamping part 211 to be strained, extrude to the blade handle, and then fix the blade handle.

[0029] Specifically, the first connecting member 12 is a screw.

[0030] Specifically, the extrusion part 22 is a screw.

[0031] It can be seen that the clamping assembly 20 utilizes the hydraulic principle. The extrusion part 22 extrudes the liquid in the liquid storage channel 212 to cause the inner wall of the clamping part 211 to be strained, extrude to the blade handle, and then fix the blade handle. The blade handle is provided with uniform and stable clamping force, and the machining precision of the coaxiality of the turbine blade handle is improved.

[0032] As an implementation form, the clamping assembly 20 further comprises a spring sleeve 23. The spring sleeve 23 is arranged between the clamping part 211 and the blade handle. The spring sleeve 23 is configured to be extruded by the extrusion part 22 to extrude the liquid in the liquid storage channel 212, so that the inner wall of the clamping part 211 is strained, the spring sleeve 23 is extruded to the inside, and then the blade handle is clamped and fixed.

[0033] It can be seen that the spring sleeve 23 is additionally arranged between the clamping part 211 and the blade handle. When the extrusion part 22 acts on the liquid in the liquid storage channel 212, the inner wall of the clamping part 211 extrudes the spring sleeve 23 to fix the blade handle. The spring sleeve 23 can better fit the shape of the blade handle, enhance the adaptability to different specifications of the blade handle, further improve the clamping precision, and buffer the machining vibration to reduce the damage to the blade handle and ensure the machining quality.

[0034] As an implementation form, the spring sleeve 23 is provided with a support part 230. The support part 230 is at least configured to avoid the spring sleeve 23 from completely entering the clamping part 211.

[0035] It can be seen that the support part 230 on the spring sleeve 23 effectively avoids the spring sleeve 23 from completely entering the clamping part 211 due to excessive extrusion force. The spring sleeve 23 is always in a suitable position to maintain a stable clamping state, and the reliability of the clamp clamping is improved.

[0036] As an implementation form, the cover plate 30 comprises a connecting portion 31 and a fixing portion 32, the fixing portion 32 is arranged on the connecting portion 31, and the fixing portion 32 and the connecting portion 31 are arranged perpendicular to each other, a plurality of first threaded holes are arranged on the connecting portion 31 at equal intervals, a second threaded hole corresponding to the first threaded hole is arranged on the base 10, the first threaded hole and the second threaded hole are connected through a second connecting piece 33, and then the cover plate 30 is fixedly connected to the base 10, and the fixing portion 32 is configured to fix the hydraulic component 21 to the base 10.

[0037] Specifically, the second connecting piece 33 is a screw.

[0038] As can be seen, the connecting portion 31 of the cover plate 30 is connected to the corresponding second threaded hole on the base 10 through the plurality of first threaded holes arranged at equal intervals by means of the second connecting piece 33, so that the cover plate 30 is stably fixed to the base 10, and the fixing portion 32 arranged perpendicularly fixes the hydraulic component 21 to the base 10 stably, thereby ensuring the position of the hydraulic component 21 stable during processing, and ensuring the whole clamping assembly 20 work normally, thereby providing reliable guarantee for the coaxiality processing of the blade handle.

[0039] As an implementation form, a guide installation groove 13 is arranged at the middle position of the base 10, and the inner wall of the guide installation groove 13 is arranged obliquely.

[0040] As can be seen, the guide installation groove 13 at the middle position of the base 10 and the oblique inner wall thereof provide accurate guidance and positioning for the installation of the hydraulic component 21. The oblique inner wall facilitates the accurate positioning of the installation portion 210 of the hydraulic component 21, improves the assembly efficiency, ensures the installation accuracy of the hydraulic component 21, and improves the clamping position accuracy of the blade handle and the processing accuracy of the coaxiality of the blade handle of the gas turbine.

[0041] As an implementation form, the installation portion 210 comprises a stabilizing portion 2100 and a protruding portion 2101, the stabilizing portion 2100 is arranged in the guide installation groove 13, and the protruding portion 2101 is arranged at the top end of the base 10 and is fixedly connected to the base 10 through the cover plate 30.

[0042] As can be seen, the stabilizing portion 2100 of the installation portion 210 is arranged in the guide installation groove 13, and the accurate and stable position is ensured by the guidance and positioning function of the guide installation groove 13, and the protruding portion 2101 is arranged at the top end of the base 10 and is connected to the base 10 through the cover plate 30, thereby further enhancing the firmness of the connection between the installation portion 210 and the base 10. This structure makes the hydraulic component 21 stably installed on the base 10 and can withstand external forces during processing without displacement, thereby ensuring that the clamping assembly 20 stably clamps the blade handle and improving the processing quality and precision.

[0043] As an implementation form, a first installation hole 14 is arranged at the middle position of the bottom of the base 10, and the first installation hole 14 is coaxially arranged with the guide installation groove 13.

[0044] It can be seen that the coaxial first mounting hole 14 and the guide mounting groove 13 corresponding to the bottom of the base 10 and the mounting portion 210 can assist in positioning during installation and debugging of the clamp, and through the mode of inserting a positioning pin or a mounting screw, the mounting portion 210 and the base 10 can be quickly and accurately positioned, installation convenience and accuracy are improved, and the coaxiality of the overall structure of the clamp is also helped to be ensured, and then the machining precision of the co-axiality of the handle portion of the turbine blade is improved.

[0045] In the embodiments disclosed in the present application, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, "connecting" can be fixedly connected, or can be detachably connected, or integrally connected; "connecting" can be directly connected, or indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the embodiments disclosed in the present application can be understood according to the specific circumstances.

[0046] The above embodiments only illustrate the basic principles and characteristics of the present application, and the present application is not limited by the above examples. Without departing from the spirit and scope of the present application, various changes and modifications of the present application are possible, and these changes and modifications all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A fixture for processing the coaxiality of a blade shank of a combustion engine, characterized in that, The clamp for processing the coaxiality of the blade handle of the combustion engine comprises a base, a clamping assembly and a cover plate, wherein: A plurality of fixing grooves are equidistantly arranged on the base, and a first connecting piece is arranged in the fixing groove. The clamping assembly comprises a hydraulic piece and a pressing piece.

2. The gas turbine vane shank coaxiality process fixture of claim 1, wherein, The clamping assembly further comprises a spring sleeve arranged between the clamping part and the blade handle.

3. The gas turbine vane shank coaxiality process fixture of claim 2, wherein, The spring sleeve is configured to press the liquid in the liquid storage channel through the pressing piece to cause the inner wall of the clamping part to be strained and press the spring sleeve inward, thereby clamping and fixing the blade handle.

4. The gas turbine vane shank coaxiality process fixture of claim 1, wherein, The spring sleeve is provided with a support part configured to avoid the spring sleeve from entering the clamping part completely.

5. The gas turbine vane shank coaxiality process fixture of claim 1, wherein, The cover plate comprises a connecting part and a fixing part.

6. The gas turbine vane shank coaxiality process fixture of claim 5, wherein, The base is provided with a guide installation groove at the middle position.

7. The gas turbine vane shank coaxiality process fixture of claim 5, wherein, The installation part comprises a stabilizing part and a protruding part. The base is provided with a first installation hole at the middle position of the bottom.

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