Blade machining tool

Abstract

The utility model discloses a tool for machining a blade, which can improve the stability of the blade in the machining process and improve the machining precision of the blade. The blade machining tool comprises a base. A vertical supporting plate is arranged in the middle of the base. A fixed clamping seat is arranged on one side of the vertical supporting plate; a telescopic clamping plate is arranged at the upper end of the supporting plate; a first clamping groove is formed in the fixed clamping seat; a transverse sliding shaft is arranged on the fixed clamping seat; a sliding clamping seat is arranged on the fixed clamping seat; one end of the transverse sliding shaft penetrates through the sliding clamping seat and is provided with a first locking nut; the first locking nut is in threaded fit with the transverse sliding shaft; a second clamping groove is formed in the sliding clamping seat; the first clamping groove and the second clamping groove form a clamping cavity matched with tenon teeth of the blade. By the adoption of the tool for machining the blade, the blade machining precision can be improved, and meanwhile the consistency during follow-up assembly can be guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of gas turbine blade processing technology, and in particular to a tooling for blade processing. Background Technology

[0002] A gas turbine is an internal combustion engine that uses a continuously flowing gas as its working fluid to drive a high-speed rotating impeller, converting the energy of fuel into useful work. It is a type of rotating impeller-type thermal engine. With the development of technology and the continuous progress of human society, gas turbines are widely used in the following fields:

[0003] 1. Aviation field

[0004] In the aviation field, gas turbines are the heart of aircraft, providing powerful propulsion. Jet engines, as a typical example of aviation gas turbines, enable aircraft to achieve high-speed, long-range flight. Different types of aircraft, such as passenger planes, fighter jets, and transport aircraft, are equipped with gas turbines with different performance characteristics based on their flight performance requirements. For example, fighter jets require gas turbines with a high thrust-to-weight ratio to achieve rapid takeoff, acceleration, and maneuverability; while passenger planes prioritize the fuel economy and reliability of their gas turbines to reduce operating costs.

[0005] 2. Navigation

[0006] Gas turbines are widely used in naval vessels and large merchant ships. In naval vessels, gas turbines, with their high power density and rapid start-up, provide powerful propulsion, enabling high speeds and good maneuverability. In the merchant shipping sector, the application of gas turbines helps improve ship operating efficiency and reduce sailing time.

[0007] 3. Power generation sector

[0008] Gas turbine power generation boasts advantages such as rapid start-up and strong peak-shaving capabilities, enabling it to quickly respond to load changes in the power system. Combined cycle (CCC) power generation technology further utilizes the exhaust heat of gas turbines for steam turbine power generation, significantly improving energy efficiency and becoming one of the important methods for modern, efficient, and clean power generation. Furthermore, in some distributed energy systems, small gas turbines can achieve combined heat and power (CHP), providing electricity and heat to communities and businesses, thereby improving the overall efficiency of energy utilization.

[0009] Due to the widespread application of gas turbines in various industrial sectors, the requirements for their overall performance are becoming increasingly stringent. The blades of a gas turbine are a crucial factor determining its overall performance; the machining precision and cost of the gas turbine blades directly impact the overall performance of the gas turbine.

[0010] During the machining process, gas turbine blades require clamping and positioning. Existing blade machining positioning fixtures typically achieve positioning by clamping the blades with tenons. However, the current technology uses a unidirectional clamping method, which results in poor stability during blade machining and makes it difficult to guarantee machining accuracy. Utility Model Content

[0011] The technical problem to be solved by this utility model is to provide a tooling for blade processing that can improve blade stability and blade processing accuracy during the processing.

[0012] The technical solution adopted by this utility model to solve its technical problem is as follows: a tooling for blade processing includes a base; a vertical support plate is provided in the middle of the base; a fixed clamping seat is provided on one side of the vertical support plate; a clamping plate is provided at the upper end of the support plate; a first clamping groove is provided on the fixed clamping seat; a transverse sliding shaft is provided on the fixed clamping seat; a sliding clamping seat is provided on the fixed clamping seat; one end of the transverse sliding shaft passes through the sliding clamping seat and is provided with a first locking nut; the first locking nut is threadedly engaged with the transverse sliding shaft; a second clamping groove is provided on the sliding clamping seat; the first clamping groove and the second clamping groove form a clamping cavity that matches the tenon teeth of the blade; a guide post is provided below one end of the clamping plate; a locking post and a sliding insertion hole matching the guide post are provided at the upper end of the support plate; the guide post is inserted into the sliding insertion hole; the upper end of the locking post passes through the clamping plate and is provided with a second locking nut; the second locking nut is threadedly engaged with the locking post.

[0013] Furthermore, the lower surface of the clamping plate is provided with an installation groove; a clamping block is installed in the installation groove; the lower surface of the clamping block is provided with a clamping groove that matches the upper end of the blade crown; the clamping block is fixedly connected to the clamping plate by bolts.

[0014] Furthermore, a connecting seat is provided on one side of the vertical support plate, and a rib is provided between the connecting seat and the vertical support plate.

[0015] Furthermore, both the connecting seat and the fixed clamping seat are fixedly connected to the base by bolts.

[0016] Furthermore, the vertical support plate, clamping plate, fixed clamping seat, and sliding clamping seat are all made of stainless steel.

[0017] Furthermore, a limit block is provided on one side of the first clamping groove of the fixed clamping seat.

[0018] The beneficial effects of this utility model are: the tooling for blade processing described in this utility model can clamp and fix the crown of the blade by cooperating with the lower fixed clamping seat and the upper clamping plate; the clamped blade is fixed in both directions, which improves the stability of blade processing and ensures consistency during subsequent assembly while improving the blade processing accuracy.

[0019] Secondly, the tooling for blade processing described in this utility model facilitates blade installation during processing and enables precise blade positioning, thereby improving processing efficiency and ensuring processing accuracy.

[0020] Furthermore, by using the tooling described in this invention to clamp the blades, the requirements for blade processing equipment can be reduced, thereby reducing equipment costs and blade processing costs. Attached Figure Description

[0021] Figure 1 This is a three-dimensional representation of the tooling for blade processing in this embodiment of the utility model. Figure 1 ;

[0022] Figure 2 This is a three-dimensional representation of the tooling for blade processing in this embodiment of the utility model. Figure 2 ;

[0023] Figure 3 This is a side view of the tooling used for blade processing in an embodiment of this utility model;

[0024] Figure 4 This is a front view of the tooling used for blade processing in an embodiment of this utility model;

[0025] Figure 5 This is an exploded view of the tooling for blade processing in an embodiment of this utility model;

[0026] Figure 6 This is a perspective view of the tooling for blade processing in this embodiment of the present invention, which is equipped with clamping blocks;

[0027] Figure 7 This is an exploded view of the tooling for blade processing in this embodiment of the present invention, which is equipped with clamping blocks;

[0028] The diagram shows: 100-base, 200-fixed clamping seat, 210-first clamping groove, 211-limiting block, 220-lateral sliding shaft, 230-sliding clamping seat, 231-second clamping groove, 240-first locking nut, 300-connecting seat, 400-support plate, 410-locking post, 420-sliding insertion hole, 430-second locking nut, 500-clamping plate, 510-guide post, 520-through hole, 530-mounting groove, 600-clamping block, 700-blade. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] like Figures 1 to 5 As shown, the tooling for processing blades according to this utility model includes a base 100; a vertical support plate 400 is provided in the middle of the base 100; and a fixing clamping seat 200 is provided on one side of the vertical support plate 400.

[0031] The support plate 400 is provided with a clamping plate 500 at its upper end; the fixed clamping seat 200 is provided with a first clamping groove 210; the fixed clamping seat 200 is provided with a transverse sliding shaft 220; the fixed clamping seat 200 is provided with a sliding clamping seat 230; one end of the transverse sliding shaft 220 passes through the sliding clamping seat 230 and is provided with a first locking nut 240; the first locking nut 240 is threadedly engaged with the transverse sliding shaft 220.

[0032] The sliding clamping seat 230 is provided with a second clamping groove 231; the first clamping groove 210 and the second clamping groove 231 form a clamping cavity that matches the tenon teeth of the blade 700.

[0033] A guide post 510 is provided below one end of the clamping plate 500; a locking post 410 and a sliding insertion hole 420 matching the guide post 510 are provided at the upper end of the support plate 400.

[0034] The guide post 510 is inserted into the sliding socket 420; the upper end of the locking post 410 passes through the clamping plate 500 and is provided with a second locking nut 430; the second locking nut 430 is threadedly engaged with the locking post 410.

[0035] Specifically, in the application process:

[0036] The blade 700 is made of high-temperature alloy material, and its length exceeds 400mm. The machining allowance for the blade crown is too large, and the cutting tool is too small. To ensure the machining stability of the blade crown gas seal teeth, this fixture is used for clamping. The clamping method is as follows:

[0037] Before clamping the blade 700, the base 100 needs to be aligned. After the base 100 is aligned, the blade 700 can be clamped.

[0038] The tenon of the blade 700 is placed into the clamping cavity formed by the first clamping groove 210 and the second clamping groove 231, and the first locking bolt 240 is tightened; the sliding clamping seat 230 and the fixed clamping seat 200 clamp the tenon of the blade 700; and the tenon is positioned by the side end face of the tenon.

[0039] However, the blade crown of the blade 700 is clamped by the clamping plate 500, and the blade crown of the blade 700 is clamped by tightening the second locking nut 430; thus, the blade is clamped and positioned. By aligning the base 100 and positioning it by the tenon side end face, the overall positioning of the blade can be achieved.

[0040] In one feasible embodiment, to facilitate the positioning and clamping of the leaf crown, further, as... Figure 6 , 7 As shown, the lower surface of the clamping plate 5 is provided with a mounting groove 530; a clamping block 600 is installed in the mounting groove; the lower surface of the clamping block 600 is provided with a clamping groove that matches the upper end of the blade 700; the clamping block 600 is fixedly connected to the clamping plate 500 by bolts. The corresponding clamping block 600 can be replaced according to the different blades 700 being clamped, so that the clamping groove on the clamping block 600 always matches the blade 700's blade crown.

[0041] In a feasible embodiment, in order to ensure the stability of the structure, a connecting seat 300 is further provided on one side of the vertical support plate 400, and a rib plate 310 is provided between the connecting seat 300 and the vertical support plate 400.

[0042] In one feasible embodiment, for ease of disassembly and installation, and for easy replacement of the fixing clamp 200, both the connecting seat 300 and the fixing clamp 200 are fixedly connected to the base 100 by bolts.

[0043] In one feasible embodiment, in order to improve the service life of the device, ensure clamping accuracy, and avoid damage to the blades during clamping, the vertical support plate 400, clamping plate 500, fixed clamping seat 200 and sliding clamping seat 230 are all made of stainless steel.

[0044] In one feasible embodiment, in order to prevent the blade from slipping out of the clamping cavity and to improve clamping and positioning accuracy, a limit block 211 is further provided on one side of the first clamping groove 210 of the fixed clamping seat 200.

Claims

1. A tooling for blade machining, characterized by: Includes a base (100); a vertical support plate (400) is provided in the middle of the base (100); a fixing clamping seat (200) is provided on one side of the vertical support plate (400); The support plate (400) is provided with a clamping plate (500) at its upper end; the fixed clamping seat (200) is provided with a first clamping groove (210); the fixed clamping seat (200) is provided with a transverse sliding shaft (220); the fixed clamping seat (200) is provided with a sliding clamping seat (230); one end of the transverse sliding shaft (220) passes through the sliding clamping seat (230) and is provided with a first locking nut (240); the first locking nut (240) is threadedly engaged with the transverse sliding shaft (220); The sliding clamping seat (230) is provided with a second clamping groove (231); the first clamping groove (210) and the second clamping groove (231) form a clamping cavity that matches the tenon teeth of the blade (700); A guide post (510) is provided at the lower end of one end of the clamping plate (500); a locking post (410) and a sliding insertion hole (420) matching the guide post (510) are provided at the upper end of the support plate (400). The guide post (510) is inserted into the sliding socket (420); the upper end of the locking post (410) passes through the clamping plate (500) and is provided with a second locking nut (430); the second locking nut (430) is threadedly engaged with the locking post (410).

2. A tool for machining a blade as claimed in claim 1, characterized in that: The clamping plate (500) has an installation groove (530) on its lower surface; a clamping block (600) is installed in the installation groove; the clamping block (600) has a clamping groove on its lower surface that matches the upper end of the blade (700); the clamping block (600) is fixedly connected to the clamping plate (500) by bolts.

3. A tool for machining a blade as claimed in claim 1, characterized in that: A connecting seat (300) is provided on one side of the vertical support plate (400), and a rib plate (310) is provided between the connecting seat (300) and the vertical support plate (400).

4. A tool for machining a blade as claimed in claim 3, characterized in that: The connecting seat (300) and the fixed clamping seat (200) are both fixedly connected to the base (100) by bolts.

5. A tool for machining a blade as claimed in claim 1, characterized in that: The vertical support plate (400), clamping plate (500), fixed clamping seat (200) and sliding clamping seat (230) are all made of stainless steel.

6. A tool for machining a blade as claimed in claim 1, characterized in that: A limit block (211) is provided on one side of the first clamping groove (210) of the fixed clamping seat (200).

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