Search

CN-121989093-A - High-speed milling device for processing blade tenon tooth

CN121989093ACN 121989093 ACN121989093 ACN 121989093ACN-121989093-A

Abstract

The invention relates to the technical field of milling equipment, in particular to a high-speed milling device for processing blade tenons; the high-speed milling device for processing the blade tenons comprises a machine body, a milling mechanism, a rotating seat, clamping blocks and a clamp, wherein the rotating seat is rotationally connected to the machine body, the rotating seat is driven by a motor on the machine body to rotate, the clamping blocks are rotationally connected to the rotating seat and driven by the motor on the rotating seat to rotate, the clamping blocks are provided with vibration filtering mechanisms, the vibration filtering mechanisms are arranged around the blades and correspond to the connection positions of the tenons and the blade bodies of the blades, and the mounting blocks and the semicircular plates are arranged on the clamp, so that vibration generated during milling can be transmitted to the blade body direction, and vibration of the blade body rebounding can be reduced and transmitted to the blade root position, thereby reducing the influence of vibration on the blade tenons during milling.

Inventors

  • DU XINYU
  • LIU TING

Assignees

  • 常州市智鸿机械有限公司

Dates

Publication Date
20260508
Application Date
20260123

Claims (6)

  1. 1. A high-speed milling device for blade tenon tooth processing is characterized by comprising: the milling machine comprises a machine body (1), a milling mechanism (11), a rotating seat (12), a clamping block (13) and a clamp (14), wherein the rotating seat (12) is rotationally connected to the machine body (1), and the rotating seat (12) is driven by a motor on the machine body (1) to rotate; The clamping block (13) is rotationally connected to the rotating seat (12) and is driven to rotate by a motor on the rotating seat (12); The clamping block (13) is provided with a vibration filtering mechanism, the vibration filtering mechanism is arranged around the blade and corresponds to the connection part of the tenon tooth and the blade body of the blade, the vibration filtering mechanism is of a disc-shaped structure and is vibrated by the vibration filtering mechanism, and the vibration transmitted to the blade body when the blade tenon tooth is milled by the filtering milling mechanism (11) and the vibration transmitted to the blade root direction by the blade body are absorbed; Still include knife rest (6), knife rest (6) are installed milling mechanism (11) is last, annular chamber (61) has been seted up in knife rest (6), the intussuseption of annular chamber (61) is filled with high damping combined material, be provided with piezoelectric accelerometer (62) in knife rest (6).
  2. 2. The high-speed milling device for blade tenon machining according to claim 1, characterized in that said vibration filtering mechanism comprises a mounting block (21) and a semicircular plate (22); The mounting block (21) is connected with the clamp (14), the semicircular plate (22) is fixedly connected to the mounting block (21), and the clamp (14) is clamped on two sides of the blade root part of the blade.
  3. 3. A high-speed milling device for blade tenon machining according to claim 2, characterized in that the shape of the mounting block (21) is semi-circular, and the end of the mounting block (21) is connected with the clamp (14) so that the semi-circular plate (22) is far away from the blade root part of the blade.
  4. 4. A high-speed milling device for blade tenon machining according to claim 3, wherein the mounting block (21) is provided with a vibration sensor (3), the semicircular plate (22) is provided with a ceramic actuator (31), the vibration sensor (3) and the ceramic actuator (31) are electrically connected to a controller to form a vibration feedback adjustment closed loop, and the ceramic actuator (31) is connected to the mounting block (21) through a supporting rod (32).
  5. 5. The high-speed milling device for blade tenon tooth machining according to claim 4, wherein a fixed block (5) is fixedly connected to the semicircular plate (22), a telescopic block (51) is connected in a sliding mode to the fixed block (5), an electromagnetic clamping mechanism (52) is arranged in the fixed block (5) to clamp the telescopic block (51), and the telescopic block (51) is connected with the ceramic actuator (31).
  6. 6. The high-speed milling device for blade tenon tooth machining according to claim 5, wherein the clamping block (13) is slidably connected with a pair of moving blocks (4), a pair of clamping blocks (41) are mounted on the moving blocks (4), connecting blocks (42) are slidably connected to end faces, close to each other, of the clamping blocks (41), air bags (43) are mounted on the connecting blocks (42), pressure sensors (44) are arranged in the air bags (43), the pressure sensors (44) are electrically connected to a controller, and clamping electric push rods (45) are connected between the connecting blocks (42) and the clamping blocks (41); the air bag (43) is filled with magnetorheological fluid (46), the connecting block (42) is provided with a pair of electrodes (47), and the electrodes (47) extend into the air bag (43).

Description

High-speed milling device for processing blade tenon tooth Technical Field The invention relates to the technical field of milling equipment, in particular to a high-speed milling device for processing blade tenons. Background The blade tenon tooth is a core stress component of an aeroengine and a gas turbine, is in a complex structure such as a fir tree type structure, a dovetail type structure and the like, is generally manufactured by adopting difficult-to-process materials such as high-temperature alloy, titanium alloy and the like, and is processed by adopting a high-speed milling process; When processing blade tenon tooth, at first with the blade clamping on the anchor clamps of high-speed milling device, in milling tenon tooth's in-process, because blade root position is thick and blade body position is thin, therefore the cutting force that produces in the milling process transmits the blade body and can lead to the blade body vibration of blade to blade length is longer than the blade root, therefore blade body vibration's in-process, blade itself is equivalent to the lever, thereby blade body's vibration can be back-transferred to the blade root again, vibration can lead to the tenon tooth surface of milling to have the vibration line, influence the quality of blade tenon tooth, and blade body's vibration can lead to the slight elastic deformation in blade edge thinner position, lead to the blade appearance to be out of compliance with the standard, thereby cause the limitation. To this end we propose a high-speed milling device for blade tenon tooth machining. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a high-speed milling device for processing blade tenons, overcomes the defects of the prior art and aims at solving the problems in the background art. In order to achieve the above purpose, the invention provides a high-speed milling device for blade tenon tooth processing, which comprises: the milling machine comprises a machine body, a milling mechanism, a rotating seat, clamping blocks and a clamp, wherein the rotating seat is rotationally connected to the machine body and is driven by a motor on the machine body to rotate; The clamping block is rotationally connected to the rotating seat and is driven to rotate by a motor on the rotating seat; The blade clamping block is provided with a vibration filtering mechanism, the vibration filtering mechanism is arranged around the blade and corresponds to the connection part of the tenon tooth and the blade body of the blade, the vibration filtering mechanism is of a disc-shaped structure and is vibrated by the vibration filtering mechanism after being vibrated, and the vibration transmitted to the blade body when the blade tenon tooth is milled by the filtering and milling mechanism and the vibration transmitted to the blade root direction by the blade body are absorbed; The milling mechanism comprises a milling mechanism body, a milling mechanism and a cutter frame, wherein the milling mechanism body is provided with a milling mechanism, an annular cavity is formed in the cutter frame, high-damping composite materials such as constraint layer damping glue are filled in the annular cavity, and a piezoelectric accelerometer is arranged in the cutter frame. Preferably, the vibration filtering mechanism comprises a mounting block and a semicircular plate; The installation block is connected with the clamp, the semicircular plate is fixedly connected to the installation block, and the clamp is clamped on two sides of the blade root part of the blade. Preferably, the shape of the mounting block is semi-circular, and the end part of the mounting block is connected with the clamp, so that the semi-circular plate is far away from the blade root part of the blade. Through being provided with installation piece and semicircle board on anchor clamps, the semicircle board that the matrix set up can absorb the vibration that produces when milling and transmits to blade body direction, can also reduce blade body rebound vibration transmission to the blade root position simultaneously to the influence of vibration to blade tenon tooth when reducing milling. Preferably, the vibration sensor is installed on the installation block, the ceramic actuator is installed on the semicircular plate, the vibration sensor and the ceramic actuator are electrically connected to the controller to form a vibration feedback adjustment closed loop, and the ceramic actuator is connected to the installation block through the support rod. Preferably, the semicircular plate is fixedly connected with a fixed block, the fixed block is slidably connected with a telescopic block, an electromagnetic clamping mechanism is arranged in the fixed block to clamp the telescopic block, and the telescopic block is connected with the ceramic actuator. Through setting up ceramic actuator on the semicircle board to when milling process, the vibration of period