Comprehensive milling clamp for aviation blade

Abstract

An aviation blade comprehensive milling clamp comprises a clamp body, a tooth-shaped block, a baffle, a pressing plate, a first pressing block, a second pressing block and a pressing strip, the first pressing block and the second pressing block are used for fixing, the clamp body is a cylinder or a circular truncated cone base and used for connecting the tooth-shaped block with a machine tool, and a center hole in the bottom face of the cylinder or the circular truncated cone base is matched with a center shaft of the machine tool; a cylinder at the lower end of the tooth-shaped block is sleeved with a circular hole in the upper part of the cylinder or circular-truncated-cone seat; the baffle and the tooth-shaped block position the root position of the blade root, and screws are arranged on the two side faces of the tooth-shaped block to fix the first pressing block and the second pressing block correspondingly, so that the first pressing block and the second pressing block push the pressing strip to abut against the top face of the blade root; the blade root of the blade needing to be machined and the wheel groove in the tooth-shaped block are installed in a matched mode, and the pressing strip is placed in the groove formed in the surface of the tooth-shaped block.

Description

Technical Field

[0001] The utility model relates to the technical field of aviation blade processing, in particular to a comprehensive milling fixture for aviation blades. Background Art

[0002] Aircraft engines are complex systems, with blades playing a crucial role. Their performance significantly impacts the engine's efficiency and stability. As core components, their operational performance is crucial. Because aircraft engines must operate reliably and for extended periods under extremely harsh conditions, blades are machined from high-strength metal materials, their increasingly complex structures pose significant manufacturing challenges. To ensure safe operation, blades must be precise and stable. Traditional machining methods suffer from inconvenient operation, poor stability, and low machining accuracy, resulting in unstable blades, time-consuming processing, low efficiency, and low machining accuracy. Utility Model Content

[0003] In order to solve the above problems, the purpose of the present invention is to provide an aviation blade comprehensive milling fixture and an application method thereof, which can quickly and accurately position, is easy to operate, and improves processing efficiency and processing accuracy.

[0004] The technical solution of the utility model is: a comprehensive milling fixture for aviation blades, including a clamping body 1, a tooth block 6, a baffle 5, a pressure plate 8, a first and a second fixing pressure block 2, 9, and a pressing strip, wherein the clamping body 1 is a cylindrical (or frustum) seat used for connecting the tooth block 6 with the machine tool, and the center hole of the bottom surface of the cylindrical (or frustum) seat cooperates with the center axis of the machine tool; the circular hole on the upper part of the cylindrical (or frustum) seat is sleeved with the cylinder at the lower end of the tooth block 6;

[0005] The baffle 5 and the toothed block 6 locate the root position of the blade root. Screws are provided on both sides of the toothed block 6 to fix the first and second pressure blocks 2 and 9 respectively, so that the first and second pressure blocks 2 and 9 push the clamping strip 4 to tighten the top surface of the blade root; the blade root of the blade 7 to be processed is matched with the wheel groove on the toothed block 6, and the clamping strip 3 is placed in the groove reserved on the surface of the toothed block 6. The pressure plate 8 is fixed to the side of the toothed block 6 with bolts according to the hole position. The bolts are turned to move the pressure blocks 2 and 9 forward to clamp the clamping strip 3, so that the contact part between the blade root and the wheel groove is in a full contact state. The cylindrical pin 4 is inserted into the through hole in the upper half of the clamping strip 3 to prevent the clamping strip from falling out when the blade is disassembled.

[0006] The pressure plate 8 is fixed to the side of the tooth block 6 with bolts according to the hole position. The pressure plate 8 is provided with two mounting holes. The side of the pressure plate 8 has a small slope. When the pressure plate 8 is fixed by bolts, the outer side of the pressure plate 8 presses the aviation blade, and is fixedly connected to the tooth block 6 by a bolt passing through a mounting hole of the pressure plate 8.

[0007] The center hole on the bottom surface of the clamp body 1 cooperates with the center axis of the machine tool to locate the center, and is then fixed to the machine tool by four bolts; the clamping strip is T-shaped, and a pin hole is provided on the upper half of the clamping strip.

[0008] The clamp body is fixed on the machine tool with bolts, and each connecting bolt is ensured to be stable and reliable. The pressing block is a flat plate with a U-shaped groove to make it adjustable.

[0009] The clamping width of the toothed block for the blade root should be slightly smaller than the blade root width.

[0010] Beneficial Effects: The utility model fixes the pressure block with screws on the side of the toothed block, allowing the pressure block to push the compression strip to press against the top surface of the blade root. The screws on the side of the toothed block fix a baffle for positioning the blade, and the screws on the side of the toothed block fix a pressure plate for compressing the blade to prevent longitudinal movement. The toothed block is fixed to the clamping body by bolts, and the clamping body is also fixed to the machine tool by bolts, facilitating the removal and clamping of the clamping body. This device achieves precise positioning, reliable fixation, is simple to operate, and improves processing efficiency and accuracy.

[0011] Compared with the prior art, the utility model has a simple structure, is easy to manufacture, has stable and reliable positioning, improves processing accuracy, and saves fixture manufacturing materials and production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the utility model comprehensive milling fixture and its application, the following structural diagram is attached:

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of the specific structure of the clamp;

[0015] Figure 3 2. It is a schematic diagram of the structure of the compression strip;

[0016] Figure 4 It is a schematic diagram of the tooth block structure;

[0017] Figure 5 It is a schematic diagram of the briquetting structure;

[0018] Figure 6 is a schematic diagram of the baffle structure;

[0019] Figure 7 It is a schematic diagram of the pressure plate structure. DETAILED DESCRIPTION

[0020] The following will describe how to implement the present invention in detail with reference to the structural diagram and parts structure diagram of the present invention.

[0021] according to Figure 1 As shown in the above-mentioned comprehensive milling fixture for aviation blades, the clamp body 1 is connected to the machine tool, the clamp body 1 is provided with four mounting holes, the bottom surface of the clamp body 1 is provided with a socket for the machine tool shaft, the clamp body 1 is sleeved on the machine tool, and is connected to the machine tool by fasteners passing through the mounting holes, and the positioning column at the front end of the clamp body 1 is provided with a socket for the positioning tooth block 6 and four threaded holes.

[0022] The above-mentioned comprehensive milling fixture for aviation blades, the tooth block 6 is provided with four mounting holes, the front end of the tooth block 6 is provided with four threaded holes, the two side surfaces of the tooth block 6 are respectively provided with three threaded holes, the ends of the two side surfaces of the tooth block 6 are respectively provided with a small inclined surface, the front end of the tooth block 6 is provided with a blade root tooth groove, the end face of the blade root tooth groove is provided with a groove for the tightening strip 3, and the tooth groove has the same angle as the blade root tooth profile, and the end of the tooth block 6 is provided with a stepped shaft, which is inserted into the jack at the front end of the clamp body 1, and is fixedly connected to the clamp body 1 by fasteners passing through the mounting holes.

[0023] The above-mentioned comprehensive milling fixture for aviation blades, the pressing block 2 and the pressing block 9 are respectively provided with a U-shaped groove, and the sides of the pressing block 2 and the pressing block 9 are respectively provided with a small inclined surface, and are fixedly connected to the tooth block 6 by fasteners passing through the U-shaped grooves of the pressing block 2 and the pressing block 9 respectively, and the small inclined surfaces on the sides of the pressing block 2 and the pressing block 9 are in contact with the small inclined surfaces at the ends of the two side surfaces of the tooth block 6.

[0024] In the above-mentioned integrated milling fixture for aviation blades, the baffle 5 is provided with two mounting holes, a small inclined surface is provided on the side of the baffle 5, and is fixedly connected to the toothed block 6 by fasteners passing through the mounting holes of the baffle 5.

[0025] In the above-mentioned integrated milling fixture for aviation blades, the pressure plate 8 is provided with two mounting holes, a small inclined surface is provided on the side of the pressure plate 8, and is fixedly connected to the tooth block 6 by fasteners passing through the mounting holes of the pressure plate 8.

[0026] First, bolt the tooth block 6 to the clamp body 1 according to the hole positions, ensuring that each connecting bolt is tightened as uniformly as possible. Bolt the baffle 5 to the side of the tooth block 6 according to the hole positions. Bolt the pressure blocks 2 and 9 to the tooth block 6 according to the hole positions. Next, align the blade root of the blade 7 to be machined with the wheel groove on the tooth block 6. Place the pressure strip 3 into the reserved groove on the surface of the tooth block 6. Bolt the pressure plate 8 to the side of the tooth block 6 according to the hole positions. Tighten the bolts to move the pressure blocks 2 and 9 forward, thereby compressing the pressure strip 3. Ensure that the blade root and wheel groove are in full contact. Insert a cylindrical pin 4 into the through-hole in the upper half of the pressure strip 3 to prevent it from falling out when the blade is removed. Before installing the blade 7 into the tooth block 6, carefully inspect the blade root and wheel groove for burrs. If present, remove them in advance. After the overall structural adjustment and installation are complete, bolt the fixture to the machine tool through the mounting holes.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A comprehensive milling fixture for aviation blades, characterized by: It includes a clamping body, a toothed block, a baffle, a pressure plate, a first and a second fixing pressure block, and a clamping strip. The clamping body is a cylinder or a round pedestal seat, which is used to connect the toothed block and the machine tool. The center hole on the bottom of the cylinder or round pedestal seat cooperates with the center axis of the machine tool; the round hole on the upper part of the cylinder or round pedestal seat is sleeved with the cylinder at the lower end of the toothed block; the baffle and the toothed block locate the root position of the blade root, and screws are provided on both sides of the toothed block to fix the first and second pressure blocks respectively, so that the first and second pressure blocks push the clamping strip to tighten the blade. Root top surface; match the blade root of the blade to be processed with the wheel groove on the tooth block, place the clamping strip into the groove provided on the surface of the tooth block, and fix the pressure plate to the side of the tooth block with bolts according to the hole position. Tighten the bolts to move the first and second clamping blocks forward to compress the clamping strip so that the contact part between the blade root and the wheel groove is in full contact. Insert a cylindrical pin into the through hole on the upper half of the clamping strip to prevent the clamping strip from falling out when the blade is disassembled; the clamping strip is T-shaped and has a pin hole on the upper half of the clamping strip; The pressure plate is fixed to the side of the toothed block with bolts according to the hole position. The pressure plate is provided with two mounting holes. The side of the pressure plate has a small slope. When the pressure plate is fixed by bolts, the outer side of the pressure plate presses the aviation blade and is fixedly connected to the toothed block by a bolt passing through a mounting hole of the pressure plate.

2. The comprehensive milling fixture for aviation blades according to claim 1 is characterized in that: The pressing block is a flat plate and has a U-shaped groove.

3. The comprehensive milling fixture for aviation blades according to claim 1 is characterized in that: The front end of the toothed block is provided with a blade root toothed groove, the end face of the blade root toothed groove is provided with a groove for a compression strip, and the toothed groove has the same angle as the blade root tooth profile. The end of the toothed block is provided with a stepped shaft, which is inserted into the socket at the front end of the clamp body and fixedly connected to the clamp body by a fastener passing through the mounting hole.

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