An aero-engine blade machining tooling

Abstract

The utility model discloses an aeroengine blade machining frock relates to blade machining frock technical field, including main frame seat and engine blade, the top of main frame seat is equipped with panel, two groups of clamping arm groups that can hold engine blade are assembled in the panel, the top of main frame seat is equipped with the chip collection subassembly that can collect the chip produced when processing engine blade. The utility model discloses through the upward movement of moving plate, can guide two groups of clamping arms in the stroke groove along the trajectory of restraint column relative close sliding, thereby from both sides accurate, firmly clamping the engine blade between them, its lining clamping block is detachably installed in the clamping block seat through dovetail block connection mode, and the adaptive clamping surface of replacement is convenient according to the blade profile, and the generality and protective property are promoted, and the chip collection subassembly of the sleeve setting in the outside of clamping arm can effectively undertake the chip produced when processing, prevents its splashing and pollutes the working environment or the damage blade surface.

Description

Technical Field

[0001] This utility model relates to the field of blade processing tooling technology, specifically to a blade processing tooling for aero-engines. Background Technology

[0002] Aero-engine blades are among the key components of aero-engines, characterized by their complex shapes, harsh stresses, wide size range, and heavy loads. The blade's external geometry determines the engine's performance, and its shape and position are closely related to the engine's characteristic parameters, compressor pressure ratio, turbine speed, and other factors. Their quality and technological level directly affect the engine's performance and lifespan. Therefore, advanced testing technologies and management methods are necessary during the design, manufacturing, and inspection of blades to ensure optimal quality and performance. Thus, geometric inspection of engine blades is particularly important.

[0003] Currently, in the manufacturing process of aero-engine blades, multiple manual loading and unloading operations are required to accurately measure the product dimensions. However, during manual disassembly, unexpected situations such as blade bumps, scratches, or deformation often occur, leading not only to surface damage and decreased dimensional accuracy but also affecting subsequent processing quality, increasing rework rates, and even causing material waste and production delays, thereby reducing overall manufacturing efficiency. Therefore, a new tooling for aero-engine blade manufacturing is proposed. Utility Model Content

[0004] Based on this, the present invention aims to at least solve one of the technical problems existing in the prior art. To this end, a machining fixture for aero-engine blades is proposed, which can automatically and stably clamp engine blades, avoiding damage that may be caused during manual loading and unloading.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an aero-engine blade processing fixture, including a main frame and an engine blade, wherein a panel is provided on the top of the main frame, and two sets of clamping arms capable of clamping the engine blade are assembled inside the panel, and a debris collection assembly capable of collecting debris generated during the processing of the engine blade is provided above the main frame.

[0006] The upper surface of the panel has two sets of stroke grooves. Each set of clamping arms is slidably disposed in the stroke groove and extends to the main frame seat at the bottom. Each set of clamping arms includes two sets of clamping arms. Guide grooves are reserved on both sides of the clamping arms. A clamping block seat is provided on the side of the two sets of clamping arms that are close to each other. The clamping block seat is connected to the inner lining clamping block by a dovetail block. A constraint frame group that can constrain the clamping arms is fixed on the lower surface of the panel. A clearance groove is provided on the side of the two sets of constraint frame groups that are close to each other. An electric push rod that can lift the clamping arms to raise and clamp and fix the engine blades is installed in the main frame seat.

[0007] As a preferred technical solution, a positioning frame fixed to the inner wall of the main frame is provided below the constraint frame group, and a support plate that fits into the bottom of the constraint frame group is provided at the bottom of the positioning frame group.

[0008] As a preferred technical solution, the telescopic end of the electric push rod is connected to a movable plate, and both ends of the movable plate extend to the bottom of the clamping arm through the relief groove. The movable plate can move upward along the relief groove and lift the clamping arm.

[0009] As a preferred technical solution, the inner walls on both sides of the travel groove are fixed with constraint columns, which extend into the guide groove and can pull the two sets of guide grooves closer to each other.

[0010] As a preferred technical solution, the bottom of the positioning frame is provided with four sets of bolts at each set of support plates, and each set of bolts penetrates the support plate and extends into the constraint frame group.

[0011] As a preferred technical solution, the debris collection assembly includes a debris frame sleeved on the outside of the clamping arm and located above the main frame. The outer wall of the debris frame is provided with a telescopic rod connected to the bottom edge surface of the main frame. A positioning groove is provided at the position where the debris frame contacts each set of clamping arms.

[0012] As a preferred technical solution, the telescopic rod includes an inner rod fixed to the outer wall of the debris frame, and an outer cylinder fixed to the bottom edge of the main frame base. The outer wall of the inner rod is provided with a spring bead that can be engaged with the outer cylinder.

[0013] In summary, the present invention has the following main advantages:

[0014] This invention guides two sets of clamping arms to slide closer to each other along the trajectory of the constraint column within the stroke groove by the upward movement of the moving plate, thereby accurately and firmly clamping the engine blade placed between them from both sides. The inner liner clamping block is detachably installed in the clamping block seat through a dovetail block connection, which facilitates the replacement of the appropriate clamping surface according to the blade profile, improving versatility and protection. The debris collection component sleeved on the outside of the clamping arms can effectively collect the debris generated during processing, preventing it from splashing and contaminating the working environment or damaging the blade surface. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional unfolded structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the internal structure of the main frame of this utility model;

[0018] Figure 4 This is a bottom view of the panel of this utility model;

[0019] Figure 5 This is a cross-sectional view of the telescopic rod of this utility model.

[0020] In the diagram: 100, main frame seat; 110, load-bearing frame; 120, panel; 121, stroke groove; 122, constraint column; 130, clamping arm; 131, clamping block seat; 132, inner lining clamping block; 133, guide groove; 140, constraint frame assembly; 141, clearance groove; 150, support plate; 160, positioning frame; 170, electric push rod; 180, moving plate;

[0021] 200. Debris collection assembly; 210. Debris frame; 220. Positioning groove; 230. Telescopic plate; 240. Telescopic rod; 241. Inner rod; 242. Outer cylinder; 243. Spring retaining ball;

[0022] 300. Engine blades. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0024] The embodiments of this utility model will be described below based on its overall structure.

[0025] A tooling for machining aero-engine blades, such as Figure 1 refer to Figure 5 As shown, it includes a main frame 100 and an engine blade 300. The top of the main frame 100 is provided with a panel 120. The panel 120 is equipped with two sets of clamping arms that can clamp the engine blade 300. Above the main frame 100 is a debris collection assembly 200 that can collect the debris generated during the processing of the engine blade 300.

[0026] The upper surface of the panel 120 is provided with two sets of stroke grooves 121. Each set of clamping arms is slidably disposed in the stroke groove 121 and extends to the main frame 100 at the bottom. Each set of clamping arms includes two sets of clamping arms 130. Guide grooves 133 are reserved on both sides of the clamping arms 130. A clamping block seat 131 is provided on the side of the two sets of clamping arms 130 that is close to each other. An inner lining clamping block 132 is connected in the clamping block seat 131 by a dovetail block. A constraint frame group 140 that can constrain the clamping arms 130 is fixed on the lower surface of the panel 120. A clearance groove 141 is provided on the side of the two sets of constraint frame groups 140 that is close to each other. An electric push rod 170 that can lift the clamping arms 130 to raise and clamp and fix the engine blades 300 is installed in the main frame 100.

[0027] The constraint frame assembly 140 is provided with a positioning frame 160 fixed to the inner wall of the main frame base 100 below it, and the bottom of the positioning frame 160 is provided with a support plate 150 that fits into the bottom of the constraint frame assembly 140.

[0028] The telescopic end of the electric push rod 170 is connected to a movable plate 180. Both ends of the movable plate 180 extend to the bottom of the clamping arm 130 via the relief groove 141. The movable plate 180 can move upward along the relief groove 141 and lift the clamping arm 130.

[0029] Both sides of the inner wall of the travel groove 121 are fixed with constraint columns 122. The constraint columns 122 extend into the guide groove 133 and can pull the two sets of guide grooves 133 closer to each other.

[0030] It is worth mentioning that a load-bearing frame 110 is fixed in the upper part of the inner wall of the main frame 100. The upper surface of the load-bearing frame 110 abuts against the bottom of the panel 120. Two sets of triangular seats are fixed in the middle of the upper surface of the panel 120. The two sets of triangular seats form a V-groove support seat and can restrain the engine blade 300 that has not yet been clamped.

[0031] The part to be processed (referring to the rough blank prepared into engine blade 300) can be placed on the support base and between the two sets of clamping arms 130. At this time, the electric push rod 170 is activated, and its output end can cause the moving plate 180 to move upward along the relief groove 141, lifting the clamping arm 130. Under the guidance of the constraint column 122, the clamping arm 130 moves closer to each other through the guide groove 133, so that the inner liner clamping block 132 firmly clamps the engine blade 300. It should be noted that the inner liner clamping block 132 can be flexibly removed from the clamping block seat 131. The inner liner clamping block 132 can be replaced according to the shape of the blade to ensure undamaged clamping. In the clamping state, blade processing operations, such as milling or measurement, can be performed.

[0032] Please refer to this carefully. Figure 5 The debris collection assembly 200 includes a debris frame 210 sleeved on the outside of the clamping arm 130 and located above the main frame 100. The outer wall of the debris frame 210 is provided with a telescopic rod 240 connected to the bottom edge surface of the main frame 100. A positioning groove 220 is provided at the position where the debris frame 210 contacts each set of clamping arms 130.

[0033] The telescopic rod 240 includes an inner rod 241 fixed to the outer wall of the debris frame 210, and an outer cylinder 242 fixed to the bottom edge of the main frame 100. The outer wall of the inner rod 241 is provided with a spring bead 243 that can be engaged with the outer cylinder 242.

[0034] During processing, the debris generated is automatically collected by the debris collection component 200; the debris frame 210 is sleeved on the outside of the clamping arm 130 through the positioning groove 220, the inner rod 241 of the telescopic rod 240 slides in the outer cylinder 242, and the spring retaining ball 243 is engaged and fixed to ensure that the debris frame 210 adjusts its height with the position of the clamping arm to effectively collect debris; after processing, the electric push rod 170 retracts, the moving plate 180 descends, the clamping arm 130 is released under the action of gravity, and the engine blade 300 can be safely removed to avoid bumping or deformation.

[0035] Please refer to this carefully. Figure 3 and Figure 4 The bottom of the positioning frame 160 is provided with four sets of bolts on each set of support plates 150, and each set of bolts passes through the support plate 150 and extends into the constraint frame set 140.

[0036] The bolts are screwed into the constraint frame assembly 140, which can securely place the panel 120 on the upper surface of the main frame 100 and ensure that the engine blade 300 is clamped.

[0037] The parts of the device not covered herein are the same as or can be implemented using existing technologies.

[0038] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A tooling for machining aircraft engine blades, comprising a main frame (100) and an engine blade (300), characterized in that: The top of the main frame (100) is provided with a panel (120), and the panel (120) is equipped with two sets of clamping arms that can clamp the engine blade (300). Above the main frame (100) is a debris collection assembly (200) that can collect the debris generated by processing the engine blade (300). The upper surface of the panel (120) is provided with two sets of stroke grooves (121). Each set of clamping arms is slidably disposed in the stroke groove (121) and extends to the main frame seat (100) at the bottom. Each set of clamping arms includes two sets of clamping arms (130). Guide grooves (133) are reserved on both sides of the clamping arms (130). A clamping block seat (131) is provided on the side of the two sets of clamping arms (130) that are close to each other. An inner lining clamping block (132) is connected in the clamping block seat (131) by a dovetail block. A constraint frame group (140) that can constrain the clamping arms (130) is fixed on the lower surface of the panel (120). A clearance groove (141) is provided on the side of the two sets of constraint frame groups (140) that are close to each other. An electric push rod (170) that can lift the clamping arms (130) to raise and clamp and fix the engine blades (300) is installed in the main frame seat (100).

2. The aero-engine blade machining fixture according to claim 1, characterized in that: The constraint frame group (140) is provided with a positioning frame (160) fixed to the inner wall of the main frame base (100) below, and the bottom of the positioning frame (160) is provided with a support plate (150) that fits into the bottom of the constraint frame group (140).

3. The aero-engine blade machining fixture according to claim 1, characterized in that: The telescopic end of the electric push rod (170) is connected to a movable plate (180). Both ends of the movable plate (180) extend to the lower part of the clamping arm (130) via a relief groove (141). The movable plate (180) can move upward along the relief groove (141) and lift the clamping arm (130) up.

4. The aero-engine blade machining fixture according to claim 1, characterized in that: Both sides of the travel groove (121) are fixed with constraint columns (122), which extend into the guide groove (133) and can pull the two sets of guide grooves (133) closer to each other.

5. The aero-engine blade machining fixture according to claim 2, characterized in that: The bottom of the positioning frame (160) is provided with four sets of bolts on each set of trays (150), and each set of bolts passes through the tray (150) and extends into the constraint frame group (140).

6. The aero-engine blade machining fixture according to claim 1, characterized in that: The debris collection assembly (200) includes a debris frame (210) sleeved on the outside of the clamping arm (130) and located above the main frame (100). The outer wall of the debris frame (210) is provided with a telescopic rod (240) connected to the bottom edge surface of the main frame (100). A positioning groove (220) is provided at the position where the debris frame (210) contacts each set of clamping arms (130).

7. The aero-engine blade machining fixture according to claim 6, characterized in that: The telescopic rod (240) includes an inner rod (241) fixed to the outer wall of the debris frame (210), and an outer cylinder (242) fixed to the bottom edge of the main frame base (100) is sleeved on the outer wall of the inner rod (241). The outer wall of the inner rod (241) is provided with a spring bead (243) that can be engaged in the outer cylinder (242).

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