Method and grinder for grinding forming of a dovetail of a turbine blade of an aeroengine

Abstract

The application discloses a method and a grinding machine for tenon grinding processing of an aero-engine turbine blade, and belongs to the technical field of aero-engine turbine blade processing. The method comprises the following steps: a plurality of turbine blades are clamped on a plurality of blade body clamping stations of a clamping device installed on the grinding machine; the blade bodies of the plurality of turbine blades are simultaneously clamped and locked on the blade body clamping stations by the clamping device, so that the plurality of turbine blades are fixed; a first installation positioning part is formed by grinding the first quasi-installation positioning part of the tenon of the plurality of turbine blades fixed by the clamping device through a grinding wheel installed on the grinding machine; and a second installation positioning part is formed by grinding the second quasi-installation positioning part of the tenon of the plurality of turbine blades fixed by the clamping device through the grinding wheel installed on the grinding machine. The grinding processing method is beneficial to clamping and positioning of the turbine blade and avoids the limitation of the clamping device on grinding of the tenon.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of turbine blade machining for aero-engines, and particularly relates to a method for tenon tooth grinding machining forming of a turbine blade for aero-engines and a grinding machine. BACKGROUND

[0002] The turbine blade is an important part for energy conversion in an aero-engine, and the tenon machining of the turbine blade is the first process of blade machining, and the tenon machining of the turbine blade is also a key link in the blade manufacturing process. The positioning and fixing of the blade before machining is particularly important. However, since the blade before machining the tenon is still in the state of precision casting blank, the same positioning reference as when the blank is cast needs to be used to position the blade, resulting in that the structure of the clamping tool is usually relatively complex.

[0003] Further, in the tenon machining process of the turbine blade, the positioning of the turbine blade by the clamping tool mainly relies on "six-point positioning". The principle of six-point positioning is to use six positioning points to completely constrain the six degrees of freedom of the blade in space, including three direction movements and three direction rotations. The six-point positioning is mainly distributed in the front end extension section of the blade, the middle blade body, the rear end serrated crown or the blade tip. The front end extension section specifically refers to the connecting part between the rear of the tenon and the front end of the blade body. The front end extension section is close to the tenon, and the front end extension section can be regarded as a part of the tenon. When the turbine blade is positioned by the six-point positioning method, and when the turbine blade is installed on the grinding machine by the existing clamping tool and the tenon is ground by the grinding wheel pair to form the tenon tooth, the part of the clamping tool for positioning the front end extension section occupies a length section of the tenon, so that the structure and machining precision of the tenon tooth formed by grinding the tenon are limited by the clamping tool, which is not conducive to the machining of the tenon tooth and hinders the optimization of the structure of the tenon tooth. Therefore, there is an urgent need for a grinding machining forming method which is conducive to the clamping and positioning of the turbine blade and avoids the limitation of the clamping tool on the grinding machining of the tenon tooth on the tenon. SUMMARY

[0004] The present application aims to overcome at least one of the deficiencies of the prior art, and to provide a method for tenon tooth grinding machining forming of a turbine blade for aero-engines which is conducive to the clamping and positioning of the turbine blade and avoids the limitation of the clamping device on the grinding machining of the tenon tooth on the tenon. In addition, a grinding machine for tenon tooth grinding machining forming of a turbine blade for aero-engines is also provided.

[0005] The technical solutions of the present application to solve the above technical problems are as follows:

[0006] According to an aspect of the present application, a method for tenon tooth grinding machining forming of a turbine blade for aero-engines is provided, the method comprising:

[0007] The plurality of turbine blades are respectively clamped on a plurality of blade body clamping stations provided on the clamping device mounted on the grinding machine, the blade bodies of the plurality of turbine blades are simultaneously clamped and locked on the blade body clamping stations by the clamping device, the plurality of turbine blades are fixed, and the tenons of the plurality of turbine blades are exposed outside the clamping device;

[0008] The first quasi-mounting positioning portions of the tenons of the plurality of turbine blades fixed by the clamping device are ground by the grinding wheel mounted on the grinding machine, and the first mounting positioning portions are respectively formed by grinding the first quasi-mounting positioning portions of the tenons of the plurality of turbine blades.

[0009] The second quasi-mounting positioning portions of the tenons of the plurality of turbine blades fixed by the clamping device are ground by the grinding wheel mounted on the grinding machine, and the second mounting positioning portions are respectively formed by grinding the second quasi-mounting positioning portions of the tenons of the plurality of turbine blades.

[0010] In the process of grinding the first quasi-mounting positioning portions and the second quasi-mounting positioning portions of the tenons of the plurality of turbine blades fixed by the clamping device by the grinding wheel, the grinding wheel is located outside the clamping device, and the clamping device does not interfere with the grinding wheel.

[0011] The method for grinding and forming turbine blade tenon in the embodiment of the application has the following advantages: the blade bodies of the plurality of turbine blades are simultaneously clamped and locked on the blade body clamping stations by the clamping device, the plurality of turbine blades are fixed and positioned, the fixed positions of the turbine blades by the clamping device are all at the blade body positions of the turbine blades, the clamping device is far away from the tenons of the turbine blades, the clamping device does not interfere with the grinding of the tenons, the structure of the tenon can be optimized and designed, and the machining requirements of various tenon structures can be met; the blade bodies of the plurality of turbine blades are simultaneously clamped and locked on the blade body clamping stations by the clamping device, the plurality of turbine blades are fixed, and the tenons of the plurality of turbine blades are ground, which improves the machining efficiency of the tenons of the turbine blades.

[0012] According to one embodiment of the present application, before the second installation positioning part of the tenon of the plurality of turbine blades fixed by the clamping device is ground by the grinding wheel installed on the grinding machine, so that the second installation positioning part of the tenon of the plurality of turbine blades is respectively ground to form a second installation positioning part, the method for grinding and forming the tenon of the turbine blade of the aero-engine further comprises:

[0013] By turning over the clamping device, the plurality of turbine blades fixed by the clamping device are turned over along with the turning over of the clamping device, so as to exchange the positions of the second installation positioning part and the first installation positioning part of the tenon of the plurality of turbine blades fixed by the clamping device.

[0014] In the embodiment, by turning over the clamping device, the plurality of turbine blades fixed by the clamping device are turned over along with the turning over of the clamping device, so as to exchange the positions of the second installation positioning part and the first installation positioning part of the tenon of the plurality of turbine blades fixed by the clamping device. After the first installation positioning part of the tenon of the turbine blade is ground by the grinding wheel, the second installation positioning part of the tenon of the turbine blade is ground by the grinding wheel by turning over the clamping device, without the need to take out and fix the plurality of turbine blades fixed by the clamping device, which is beneficial to improve the grinding efficiency. In addition, it is also beneficial to reduce the number of grinding wheels that need to be installed on the grinding machine.

[0015] According to one embodiment of the present application, the clamping device comprises:

[0016] A support seat, a plurality of installation avoidance grooves are arranged on the support seat along the length direction thereof, and the plurality of installation avoidance grooves extend along the width direction of the support seat;

[0017] A plurality of blade body lifting limiting seats are arranged one by one corresponding to the plurality of installation avoidance grooves, the blade body lifting limiting seats are installed on the support seat and respectively located in the installation avoidance grooves, the upper side of the blade body lifting limiting seat is provided with a plurality of lifting limiting parts for one by one corresponding to the plurality of blade body lower side length profile of the turbine blade, the plurality of lifting limiting parts are arranged in the length direction of the turbine blade, and the plurality of lifting limiting parts can jointly fit the plurality of blade body lower side length profile of the turbine blade to form a plurality of arc-shaped lifting limiting contact surfaces;

[0018] The leaf body pressing limiting seat is provided with a plurality of leaf body pressing limiting parts corresponding to the plurality of upper side length contour profiles of the turbine blades, the plurality of leaf body pressing limiting parts are arranged at intervals along the length direction of the turbine blades, and the plurality of leaf body pressing limiting parts can jointly fit the plurality of upper side length contour profiles of the turbine blades to form a plurality of arc-shaped pressing limiting contact surfaces.

[0019] The plurality of turbine blades are respectively placed between the plurality of lifting limiting parts and the plurality of pressing limiting parts, the leaf body pressing limiting seat is moved towards the leaf body lifting limiting seat and then locked, so that the lower side length contour profiles and the plurality of upper side length contour profiles of the plurality of turbine blades between the plurality of lifting limiting parts and the plurality of pressing limiting parts are fixed under the limiting action of the plurality of lifting limiting parts and the plurality of pressing limiting parts.

[0020] The plurality of turbine blades are respectively placed between the plurality of lifting limiting parts and the plurality of pressing limiting parts, the leaf body pressing limiting seat is moved towards the leaf body lifting limiting seat and then locked, so that the lower side length contour profiles and the plurality of upper side length contour profiles of the plurality of turbine blades between the plurality of lifting limiting parts and the plurality of pressing limiting parts are fixed under the limiting action of the plurality of lifting limiting parts and the plurality of pressing limiting parts.

[0021] In the embodiment, the plurality of turbine blades are respectively placed between the plurality of lifting limiting parts and the plurality of pressing limiting parts, and then the leaf body pressing limiting seat is moved towards the leaf body lifting limiting seat and locked, which is beneficial to jointly locking the lower side length contour profiles and the plurality of upper side length contour profiles of the turbine blades by the plurality of lifting limiting parts and the plurality of pressing limiting parts, thereby realizing the fixation of the turbine blades. Further, the plurality of lifting limiting parts can jointly fit the plurality of lower side length contour profiles of the turbine blades, and the plurality of pressing limiting parts can jointly fit the plurality of upper side length contour profiles of the turbine blades, which is beneficial to increasing the contact area of the lifting limiting parts and the pressing limiting parts with the turbine blades, thereby improving the reliability and stability of the locking of the turbine blades by the lifting limiting parts and the pressing limiting parts, and avoiding the deformation of the turbine blades due to excessive local pressure caused by the extrusion of the lifting limiting parts and the pressing limiting parts.

[0022] According to one embodiment of the present application, the first installation position of the tenon of the plurality of turbine blades fixed by the clamping device is ground by the grinding wheel installed on the grinding machine, comprising:

[0023] According to the first preset grinding amount of the first installation position of the tenon of the plurality of turbine blades, the current feed grinding amount of the grinding wheel installed on the grinding machine is adjusted, and the first preset grinding amount is completed by the grinding wheel on the first installation position of the tenon of the plurality of turbine blades.

[0024] The second installation position of the tenon of the plurality of turbine blades fixed by the clamping device is ground by the grinding wheel installed on the grinding machine, comprising:

[0025] According to the second preset grinding amount of the second installation position of the tenon of the plurality of turbine blades, the current feed grinding amount of the grinding wheel installed on the grinding machine is adjusted, and the second preset grinding amount is completed by the grinding wheel on the second installation position of the tenon of the plurality of turbine blades.

[0026] In the embodiment, the first preset grinding amount is completed by the grinding wheel on the first installation position of the tenon of the plurality of turbine blades, and the second preset grinding amount is completed by the grinding wheel on the second installation position of the tenon of the plurality of turbine blades, which is beneficial to grinding the plurality of turbine blades in sequence, improves the processing efficiency, and improves the consistency of grinding the plurality of turbine blades.

[0027] According to one embodiment of the present application, the plurality of turbine blades are respectively clamped on the plurality of blade body clamping stations provided on the clamping device installed on the grinding machine, comprising:

[0028] The plurality of turbine blades are respectively placed on the plurality of blade body clamping stations provided on the clamping device on the grinding machine, and the plurality of turbine blades placed on the plurality of blade body clamping stations are locked and fixed by the locking member, so that the tenon of the plurality of turbine blades locked and fixed on the plurality of blade body clamping stations is inclined upward, and a first included angle is formed between the center plane passing through the center of the tenon of the plurality of turbine blades locked and fixed on the plurality of blade body clamping stations and the horizontal plane, wherein the angle of the first included angle is any value in 10°-30°.

[0029] The plurality of turbine blades placed on the plurality of blade clamping stations are locked and fixed by the locking members in the embodiment, the tenon head of the turbine blade is inclined, a first included angle is formed between the center plane passing through the center of the tenon head of the plurality of turbine blades locked and fixed on the plurality of blade clamping stations and the horizontal plane, the first included angle is any value in 10°-30°, which is beneficial to grind the tenon tooth with complete root guide circle on the tenon head of the turbine blade, and is beneficial to improve the compactness of the tenon tooth and the tooth groove in the mortise groove of the turbine disc when the turbine blade with the tenon tooth with complete root guide circle is installed on the turbine disc, thereby improving the reliability and stability of the turbine blade installation positioning, and is also beneficial to improve the reliability and stability of the turbine blade with the tenon tooth with complete root guide circle installed on the aero-engine.

[0030] According to another aspect of the present application, a grinding machine for turbine blade tenon tooth grinding forming of an aero-engine is provided, which is used to implement the method for turbine blade tenon tooth grinding forming of an aero-engine described above, and comprises:

[0031] A bed body;

[0032] A worktable installed on the bed body;

[0033] The clamping device is installed on the worktable, and a plurality of blade clamping stations are arranged on the clamping device, and the plurality of blade clamping stations can clamp and lock a plurality of blade bodies of the turbine blades at the same time;

[0034] A grinding processing driving device installed on the bed body;

[0035] A grinding wheel frame installed on the grinding processing driving device and located on the upper side of the worktable, wherein the grinding wheel is installed on the grinding wheel frame and faces the tenon head of the turbine blade clamped and locked on the blade clamping station, and the grinding wheel can grind the tenon head of the turbine blade under the driving of the grinding processing driving device;

[0036] A control unit, and the grinding processing driving device is electrically connected with the control unit.

[0037] The clamping device in the embodiment is installed on the workbench, and a plurality of blade body clamping stations are arranged on the clamping device. The plurality of blade body clamping stations can simultaneously clamp and lock a plurality of turbine blade bodies, facilitating simultaneous clamping and locking of the plurality of turbine blade bodies on the blade body clamping stations, fixing and positioning the plurality of turbine blades, and fixing the turbine blades by the clamping device at the blade body positions of the turbine blades. This is beneficial to keep the clamping device away from the tenons of the turbine blades, thereby avoiding the limitation and interference of the clamping device on the tenon teeth formed by grinding on the tenons due to the need to fix the tenons of the turbine blades, facilitating the optimization design of the structure of the tenon teeth, and meeting the machining requirements of various tenon tooth structures. Furthermore, simultaneous clamping and locking of the plurality of turbine blade bodies on the blade body clamping stations by the clamping device facilitates fixing of the plurality of turbine blades and tenon grinding of the plurality of turbine blades, and improves the machining efficiency of the tenon teeth formed by grinding on the tenons of the turbine blades.

[0038] According to an embodiment of the present application, the grinding machine further comprises:

[0039] An angle adjusting base is installed on the workbench, and an angle adjusting support surface is arranged on the angle adjusting base. A second included angle is formed between the angle adjusting support surface and a horizontal plane. When the clamping device is installed on the angle adjusting support surface, the tenons of the plurality of turbine blades fixed and locked on the plurality of blade body clamping stations are inclined upward, and a first included angle is formed between a center plane passing through the centers of the tenons of the plurality of turbine blades and the horizontal plane. The angle of the first included angle is equal to the angle of the second included angle.

[0040] In the embodiment, the angle adjusting base is installed on the workbench. When the clamping device is installed on the angle adjusting support surface, the angle of the first included angle formed between the center plane of the centers of the tenons of the plurality of turbine blades and the horizontal plane is equal to the angle of the second included angle. This is beneficial to form tenon teeth with complete root guide circles on the tenons of the turbine blades by grinding, improve the compactness of the engagement of the tenon teeth with the tooth grooves in the tenon slots of the turbine disc when the turbine blades with the tenon teeth having complete root guide circles are installed on the turbine disc, and improve the reliability and stability of the installation and positioning of the turbine blades. This is also beneficial to improve the reliability and stability of the installation of the turbine blades with the tenon teeth having complete root guide circles on the aero-engine.

[0041] According to an embodiment of the present application, a plurality of clamping devices are arranged. The plurality of clamping devices are linearly arranged along the length direction of the angle adjusting base and installed on the angle adjusting support surface.

[0042] The clamping device of the embodiment is provided with a plurality of clamping devices, the plurality of clamping devices are linearly arranged along the length direction of the angle adjusting base and are installed on the angle adjusting support surface, which is beneficial to respectively installing a plurality of turbine blades on the plurality of clamping devices, and further increases the number of tenons of the turbine blades that can be processed in sequence in one grinding process, and improves the processing efficiency of grinding the tenon of the turbine blade to form a tenon tooth.

[0043] According to one embodiment of the present application, the clamping device comprises:

[0044] A support base is provided with a plurality of installation avoiding grooves along the length direction thereof, and the plurality of installation avoiding grooves extend along the width direction of the support base.

[0045] A blade body lifting limiting seat is provided one by one corresponding to the plurality of installation avoiding grooves, the blade body lifting limiting seat is installed on the support base and is located in the installation avoiding groove respectively, the upper side of the blade body lifting limiting seat is provided with a plurality of lifting limiting parts for one by one corresponding to the plurality of blade body lower side length section contours of the turbine blade to be fitted and lifted and limited, the plurality of lifting limiting parts are arranged in the length direction of the turbine blade, and the plurality of lifting limiting parts can collectively fit the plurality of blade body lower side length section contours of the turbine blade to form a plurality of arc-shaped lifting limiting contact surfaces.

[0046] A blade body pressing limiting seat is provided one by one corresponding to the plurality of blade body lifting limiting seats, the plurality of blade body pressing limiting seats are movably installed on the support base one by one corresponding to the plurality of blade body lifting limiting seats, the lower side of the blade body pressing limiting seat is provided with a plurality of pressing limiting parts for one by one corresponding to the plurality of blade body upper side length section contours of the turbine blade to be fitted and pressed and limited, the plurality of pressing limiting parts are arranged in the length direction of the turbine blade, and the plurality of pressing limiting parts can collectively fit the plurality of blade body upper side length section contours of the turbine blade to form a plurality of arc-shaped pressing limiting contact surfaces, the blade body pressing limiting seat is locked after being moved towards the blade body lifting limiting seat, and the blade body of the turbine blade between the plurality of lifting limiting parts and the plurality of pressing limiting parts can be fixed under the limiting action of the plurality of lifting limiting parts and the plurality of pressing limiting parts.

[0047] The upper side of the blade body lifting limiting seat in the embodiment is provided with a plurality of lifting limiting parts for one-to-one corresponding to the lower side length profile of the turbine blade, and the plurality of lifting limiting parts can jointly limit the lower side length profile of the turbine blade. Further, the lower side of the blade body pressing limiting seat is provided with a plurality of pressing limiting parts for one-to-one corresponding to the upper side length profile of the turbine blade, and the plurality of pressing limiting parts can jointly limit the upper side length profile of the turbine blade. The plurality of turbine blades can be placed between the plurality of lifting limiting parts and the plurality of pressing limiting parts, and then the blade body pressing limiting seat is moved towards the blade body lifting limiting seat and locked, so that the turbine blade is fixed and limited. Further, the plurality of lifting limiting parts can jointly limit the lower side length profile of the turbine blade, and the plurality of pressing limiting parts can jointly limit the upper side length profile of the turbine blade, so that the contact area of the lifting limiting parts and the pressing limiting parts with the blade body of the turbine blade is increased, the reliability and stability of the lifting limiting parts and the pressing limiting parts in locking the blade body are improved, and the deformation of the blade body of the turbine blade caused by excessive local pressure due to extrusion of the lifting limiting parts and the pressing limiting parts is avoided, and the blade profile of the turbine blade is protected.

[0048] According to one embodiment of the present application, the clamping device further comprises:

[0049] A vertical movement adjusting mechanism is movably connected to the support seat, and the blade body pressing limiting seat is movably installed on the support seat through the vertical movement adjusting mechanism. The blade body pressing limiting seat can have a pressing position and a loosening position relative to the blade body of the turbine blade between the plurality of lifting limiting parts and the plurality of pressing limiting parts under the adjustment of the vertical movement adjusting mechanism. When the blade body pressing limiting seat is at the pressing position, the blade body of the turbine blade between the plurality of lifting limiting parts and the plurality of pressing limiting parts is fixed under the limiting action of the plurality of lifting limiting parts and the plurality of pressing limiting parts. When the blade body pressing limiting seat is at the loosening position, the pressing limiting parts release the pressing of the blade body of the turbine blade between the plurality of lifting limiting parts and the plurality of pressing limiting parts.

[0050] The leaf body pressing limiting seat in the embodiment is vertically movably installed on the support seat through the vertical movable adjusting mechanism, which is favorable for the leaf body pressing limiting seat to move in the vertical direction relative to the support seat under the adjustment of the vertical movable adjusting mechanism, and is favorable for driving the leaf body pressing limiting seat to move to the pressing position in the vertical direction and vertically press the leaf body of the turbine blade located between the plurality of lifting limiting parts and the plurality of pressing limiting parts, thereby improving the reliability of the pressing fixation of the plurality of lifting limiting parts and the plurality of pressing limiting parts on the leaf body of the turbine blade. In addition, when the turbine blade needs to be taken out, the vertical movable adjusting mechanism is used to drive the leaf body pressing limiting seat to move away from the leaf body of the turbine blade, thereby facilitating the taking out of the turbine blade.

[0051] According to one embodiment of the present application, the leaf body lifting limiting seat comprises:

[0052] The leaf body lifting limiting block one is installed on the support seat and located in the installation avoiding groove, and the upper side of the leaf body lifting limiting block one is provided with a lifting limiting part one for closely lifting and limiting the lower side length profile one of the leaf body of the turbine blade.

[0053] The leaf body lifting limiting block two is installed on the support seat and located on one side of the leaf body lifting limiting block one opposite to the leaf body lifting limiting block one in the width direction of the support seat, and the upper side of the leaf body lifting limiting block one is provided with a lifting limiting part two for closely lifting and limiting the lower side length profile two of the leaf body of the turbine blade. The lifting limiting parts include the lifting limiting part one and the lifting limiting part two, and the lower side length profile includes the lower side length profile one and the lower side length profile two.

[0054] The lifting limiting part one in the embodiment can closely lift and limit the lower side length profile one of the leaf body of the turbine blade, which is favorable for increasing the contact area of the lifting limiting part one and the lower side length profile one. The lifting limiting part two can closely lift and limit the lower side length profile two of the leaf body of the turbine blade, which is favorable for increasing the contact area of the lifting limiting part two and the lower side length profile two. The lifting limiting part one and the lifting limiting part two jointly lift and limit the leaf body in the length direction of the leaf body of the turbine blade, which avoids the small contact area between the lower side length profile and the lifting limiting part to form local pressure and cause the deformation of the leaf body during the pressing of the leaf body of the turbine blade, thereby improving the reliability of the lifting limiting part in lifting and limiting the leaf body of the turbine blade, and is favorable for protecting the airfoil of the leaf body of the turbine blade.

[0055] According to one embodiment of the present application, the leaf body pressing limiting seat comprises:

[0056] A sliding mounting seat is slidingly mounted on the support seat and is capable of sliding in the vertical direction under the drive of the vertical movable adjusting mechanism;

[0057] A first leaf body pressing limiting block is mounted on the lower side of the sliding mounting seat opposite to the first leaf body lifting limiting block in the installation avoiding groove, and a first leaf body pressing portion is arranged on the lower side of the first leaf body pressing limiting block for abutting and pressing limiting the first leaf body upper length profile of the turbine blade.

[0058] A second leaf body pressing limiting block is mounted on the lower side of the sliding mounting seat opposite to the first leaf body pressing limiting block in the width direction of the support seat, and a second pressing limiting portion is arranged on the lower side of the second leaf body pressing limiting block for abutting and pressing limiting the second leaf body upper length profile of the turbine blade. The pressing limiting portions include the first and second pressing limiting portions, and the leaf body upper length profiles include the first and second leaf body upper length profiles.

[0059] The first leaf body pressing portion in the embodiment can abut and press limit the first leaf body upper length profile of the turbine blade, which is beneficial to increase the contact area of the first leaf body pressing portion and the first leaf body upper length profile. The second leaf body pressing portion can abut and press limit the second leaf body upper length profile of the turbine blade, which is beneficial to increase the contact area of the second leaf body pressing portion and the second leaf body upper length profile. The first and second leaf body pressing portions jointly press limit the leaf body in the length direction of the turbine blade, which avoids the local pressure caused by the small contact area between the leaf body upper length profile and the leaf body pressing portion, and thus avoids the deformation of the leaf body. Therefore, the reliability of the leaf body pressing portion in pressing limiting the leaf body of the turbine blade is improved, and the airfoil of the turbine blade is protected.

[0060] According to one embodiment of the present application, the lower side of the sliding mounting seat is provided with a vertical guide groove, the first leaf body pressing limiting block is mounted in the vertical guide groove through an adjusting bolt, the adjusting bolt is threadedly connected with a vertical threaded hole provided on the sliding mounting seat, the upper end and the lower end of the adjusting bolt respectively pass through the vertical threaded hole, and the first leaf body pressing limiting block is mounted on the lower end of the adjusting bolt. When the adjusting bolt is screwed, the first leaf body pressing limiting block vertically moves in the vertical direction under the guidance of the vertical guide groove.

[0061] The lower side of the sliding mounting base is provided with a vertical guide groove two, the blade body pressing limiting block two is installed in the vertical guide groove two through an adjusting bolt two, the adjusting bolt two is in threaded connection with a vertical threaded hole two provided on the sliding mounting base, the upper end and the lower end of the adjusting bolt two respectively pass through the vertical threaded hole two, the blade body pressing limiting block two is installed on the lower end of the adjusting bolt two, when the adjusting bolt two is screwed, the blade body pressing limiting block two vertically moves in the vertical direction under the guidance of the vertical guide groove two.

[0062] The blade body pressing limiting block one in the embodiment is installed in the vertical guide groove one on the lower side of the sliding mounting base through the adjusting bolt one, the adjusting bolt one is in threaded connection with the vertical threaded hole one, so that the height position of the blade body pressing limiting block one in the vertical direction is adjusted by screwing the adjusting bolt one, so that the blade body pressing limiting block one presses or releases the pressing of the blade of the turbine blade; similarly, the blade body pressing limiting block two in the embodiment is installed in the vertical guide groove two on the lower side of the sliding mounting base through the adjusting bolt two, the adjusting bolt two is in threaded connection with the vertical threaded hole two, so that the height position of the blade body pressing limiting block two in the vertical direction is adjusted by screwing the adjusting bolt two, so that the blade body pressing limiting block two presses or releases the pressing of the blade of the turbine blade, so that the blade body pressing limiting block one and the blade body pressing limiting block two press or release the pressing of the blade of the turbine blade.

[0063] According to one embodiment of the present application, the blade lower side length profile one is an arc-shaped protrusion one, the blade lower side length profile two is an arc-shaped protrusion two, the lifting limiting part one is a recessed limiting groove one, and the lifting limiting part two is a recessed limiting groove two; when the inner side wall of the recessed limiting groove one is in abutting contact with the arc-shaped protrusion one, the arc-shaped protrusion one can form a plurality of lifting limiting contact surfaces; when the inner side wall of the recessed limiting groove two is in abutting contact with the arc-shaped protrusion two, the arc-shaped protrusion two can form a plurality of lifting limiting contact surfaces.

[0064] The blade upper side length profile one is an arc-shaped recessed groove one, the blade upper side length profile two is an arc-shaped recessed groove two, the lower side of the pressing limiting part one is an arc-shaped protrusion three, and the lower side of the pressing limiting part two is an arc-shaped protrusion four; when the arc-shaped protrusion three is in abutting contact with the arc-shaped recessed groove one, the arc-shaped recessed groove one can form a plurality of pressing limiting contact surfaces; when the arc-shaped protrusion four is in abutting contact with the arc-shaped recessed groove two, the arc-shaped recessed groove two can form a plurality of pressing limiting contact surfaces.

[0065] In this embodiment, when the inner wall of the recessed limiting groove one comes into contact with the arc-shaped protrusion one, it can form multiple lifting and limiting contact surfaces for the arc-shaped protrusion one. Similarly, when the inner wall of the recessed limiting groove two comes into contact with the arc-shaped protrusion two, it can form multiple lifting and limiting contact surfaces for the arc-shaped protrusion two. This achieves the formation of multiple lifting and limiting contact surfaces for the lower length section of the blade profile, increasing the contact area for supporting the lower length section of the blade profile. Furthermore, in this embodiment, when the arc-shaped protrusion three comes into contact with the arc-shaped recessed groove one, it can form multiple pressing and limiting contact surfaces for the inner wall of the arc-shaped recessed groove one. When the arc-shaped protrusion four and the arc-shaped recess two come into contact, they can form multiple pressing and limiting contact surfaces on the inner wall of the arc-shaped recess two. This achieves multiple pressing and limiting contact surfaces on the upper length section of the blade body, increasing the contact area of ​​the lower length section of the blade body. During the pressing process of the turbine blade body, it avoids the formation of local pressure due to the small contact area between the lower length section of the blade body and the upper length section of the blade body, which could lead to blade deformation. This improves the reliability of pressing and limiting the turbine blade body and is also beneficial for protecting the blade profile of the turbine blade body. Attached Figure Description

[0066] To more clearly illustrate the technical solutions in this invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0067] Figure 1 This is a flowchart illustrating a method for grinding and forming tenons for aero-engine turbine blades according to an embodiment of this application.

[0068] Figure 2 This is a schematic diagram of the clamping device in the embodiment of this application mounted on the angle adjustment pad;

[0069] Figure 3 for Figure 2 The front view after straightening;

[0070] Figure 4 for Figure 3 The left view;

[0071] Figure 5 This is a schematic diagram of the angle adjustment pad structure in an embodiment of this application;

[0072] Figure 6 This is a schematic diagram of the clamping device in the embodiment of this application for clamping and limiting multiple turbine blades respectively;

[0073] Figure 7 for Figure 6Disassembling view of part components in the figure.

[0074] In the drawings, the components represented by the respective reference numerals are listed as follows:

[0075] 1, angle adjustment base, 2, support base, 3, blade lifting limit block one, 4, blade lifting limit block two, 5, sliding mounting seat, 6, turbine blade, 10, angle adjustment support surface, 11, stop limit block, 12, avoidance recess groove, 13, mounting support block, 20, vertical support block one, 21, vertical support block two, 22, mounting positioning hole one, 23, threaded hole one, 24, stop block one, 25, stop block two, 30, recess limit groove one, 31, limit center, 32, mounting positioning pin one, 33, locking bolt one, 40, recess limit groove two, 41, mounting positioning pin two, 42, locking bolt two, 50, horizontal extension block, 51, vertical guide groove one, 52, vertical threaded hole two, 53, threaded hole three, 54, guide limit groove, 55, blade pressing limit block one, 56, blade pressing limit block two, 60, tenon, 61, blade, 101, bolt hole one, 111, stop surface, 131, bolt avoidance groove, 201, vertical sliding guide groove, 202, stop block three, 203, grinding guide block one, 211, grinding guide block two, 212, threaded hole one, 213, bolt hole two, 214, stop support block, 501, bolt hole three, 502, locking bolt three, 521, adjustment bolt one, 522, adjustment bolt two, 531, adjustment bolt three, 551, mounting slot one, 552, pressing limit part one, 561, mounting slot two, 562, pressing limit part two, 5211, clamping protrusion one, 5221, clamping protrusion two. DETAILED DESCRIPTION

[0076] In order to make the purpose, technical scheme and advantages of the present application more clear, the following will make further detailed description to the embodiments of the present application in combination with the drawings.

[0077] In order to make the purpose, technical scheme and advantages of the present application more clear, the following will make further detailed description to the embodiments of the present application in combination with the drawings.

[0078] In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can also be implemented in other ways different from the description herein, therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below.

[0079] It should be noted that the terms "first", "second", and the like in the description and in the claims of the present application and the above-described accompanying drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device including a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to the process, method, product, or device.

[0080] According to an aspect of the present application, an embodiment of a method for turbine blade tenon tooth grinding forming of an aero-engine is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, or the steps or part of the steps shown in the flowchart can be executed by an operator, and although the logical order is shown in the flowchart, in some cases, the steps shown or described herein can be executed in a different order.

[0081] Figure 1 is a flowchart of a method for turbine blade tenon tooth grinding forming of an aero-engine according to an embodiment of the present application, which is performed by a grinding machine provided with a clamping device as shown in Figures 2 to 7 , the method comprises the following steps: Figure 1

[0082] Step S102, a plurality of turbine blades 6 are respectively clamped on a plurality of blade body clamping stations provided on the clamping device installed on the grinding machine, the blade bodies 61 of the plurality of turbine blades 6 are simultaneously clamped and locked on the blade body clamping stations by the clamping device, so as to fix the plurality of turbine blades 6, and make the tenon heads 60 of the plurality of turbine blades 6 exposed outside the clamping device;

[0083] Step S104, the first quasi-installation positioning part of the tenon head 60 of the plurality of turbine blades 6 fixed by the clamping device is ground by the grinding wheel installed on the grinding machine, so as to form a first installation positioning part on the first quasi-installation positioning part of the tenon head 60 of the plurality of turbine blades 6;

[0084] Step S106, the second quasi-installation positioning part of the tenon head 60 of the plurality of turbine blades 6 fixed by the clamping device is ground by the grinding wheel installed on the grinding machine, so as to form a second installation positioning part on the second quasi-installation positioning part of the tenon head 60 of the plurality of turbine blades 6;

[0085] ​In the process of grinding the first and second quasi-mounting positioning portions of the tenon 60 of the multiple turbine blades 6 fixed by the clamping device by the grinding wheel, the grinding wheel is located outside the clamping device, and the clamping device does not interfere with the grinding wheel.

[0086] In the embodiment, as shown in the figure, Figure 1 In the method for grinding and forming the tenon of the turbine blade of the aero-engine in the embodiment, the blade body 61 of the multiple turbine blades 6 is clamped and locked on the blade body clamping station by the clamping device, so that the multiple turbine blades 6 are fixed and positioned, and the fixed positions of the turbine blades 6 by the clamping device are all at the blade body positions of the turbine blades 6, which is beneficial to keep the clamping device away from the tenon 60 of the turbine blade 6, thereby avoiding the limitation and interference of the clamping device on the grinding of the tenon 60 of the turbine blade 6, optimizing the design of the structure of the tenon, and meeting the processing requirements of multiple tenon structures. Furthermore, the blade body 61 of the multiple turbine blades 6 is clamped and locked on the blade body clamping station by the clamping device, which is beneficial to fix the multiple turbine blades 6 and grind the tenon 60 of the multiple turbine blades 6, and improve the processing efficiency of the tenon 60 of the turbine blade 6.

[0087] In one embodiment of the present application, before the second quasi-mounting positioning portion of the tenon 60 of the multiple turbine blades 6 fixed by the clamping device is ground by the grinding wheel installed on the grinding machine, the method for grinding and forming the tenon of the turbine blade of the aero-engine further comprises:

[0088] By turning over the clamping device, the multiple turbine blades 6 fixed by the clamping device are turned over along with the turning over of the clamping device, so as to exchange the positions of the first and second quasi-mounting positioning portions of the tenon 60 of the multiple turbine blades 6 fixed by the clamping device.

[0089] In the embodiment, by turning over the clamping device, the multiple turbine blades 6 fixed by the clamping device are turned over along with the turning over of the clamping device, so as to exchange the positions of the first and second quasi-mounting positioning portions of the tenon 60 of the multiple turbine blades 6 fixed by the clamping device.

[0090] In one embodiment of the present application, as shown in the figure,Figure 6 and Figure 7 As shown in the figure, the clamping device comprises:

[0091] A support base 2, a plurality of installation avoidance grooves are arranged on the support base 2 along the length direction of the support base 2 and extend along the width direction of the support base 2;

[0092] A plurality of blade body lifting limiting seats are arranged one by one corresponding to the plurality of installation avoidance grooves, the blade body lifting limiting seats are installed on the support base 2 and are respectively located in the installation avoidance grooves, the upper side of the blade body lifting limiting seat is provided with a plurality of lifting limiting parts for one by one corresponding to the plurality of blade body lower side length segment contours of the turbine blade 6 to be fitted and lifted and limited, the plurality of lifting limiting parts are arranged in the length direction of the turbine blade 6, and the plurality of lifting limiting parts can collectively fit the plurality of blade body lower side length segment contours of the turbine blade 6 to form a plurality of arc-shaped lifting limiting contact surfaces;

[0093] A plurality of blade body pressing limiting seats are arranged one by one corresponding to the plurality of blade body lifting limiting seats, the plurality of blade body pressing limiting seats are movably installed on the support base 2 corresponding to the plurality of blade body lifting limiting seats, the lower side of the blade body pressing limiting seat is provided with a plurality of pressing limiting parts for one by one corresponding to the plurality of blade body upper side length segment contours of the turbine blade 6 to be fitted and pressed and limited, the plurality of pressing limiting parts are arranged in the length direction of the turbine blade 6, and the plurality of pressing limiting parts can collectively fit the plurality of blade body upper side length segment contours of the turbine blade 6 to form a plurality of arc-shaped pressing limiting contact surfaces, the blade body pressing limiting seat is moved towards the blade body lifting limiting seat and then locked, and the blade body 61 of the turbine blade 6 between the plurality of lifting limiting parts and the plurality of pressing limiting parts can be fixed under the limiting action of the plurality of lifting limiting parts and the plurality of pressing limiting parts;

[0094] The plurality of turbine blades 6 are respectively clamped on the plurality of blade body clamping stations arranged on the clamping device installed on the grinding machine, the blade body 61 of the plurality of turbine blades 6 is clamped and locked on the blade body clamping station by the clamping device at the same time, the plurality of turbine blades 6 are fixed, comprising:

[0095] The plurality of turbine blades 6 are respectively placed between the plurality of lifting limiting parts and the plurality of pressing limiting parts, the blade body pressing limiting seat is moved towards the blade body lifting limiting seat and then locked, and the blade body lower side length segment contour and the plurality of blade body upper side length segment contours of the plurality of turbine blades 6 between the plurality of lifting limiting parts and the plurality of pressing limiting parts are fixed under the limiting action of the plurality of lifting limiting parts and the plurality of pressing limiting parts.

[0096] In this embodiment, as Figure 6 and Figure 7As shown, by placing the plurality of turbine blades 6 between the plurality of lifting limiting portions and the plurality of pressing limiting portions respectively, and then moving the blade body pressing limiting seat towards the blade body lifting limiting seat and locking the blade body pressing limiting seat, it is beneficial to lock the blade body lower length section contour and the plurality of blade body upper length section contours of the turbine blade 6 through the plurality of lifting limiting portions and the plurality of pressing limiting portions, thereby achieving the fixing and limiting of the turbine blade 6. Further, the plurality of lifting limiting portions can jointly fit and lift the plurality of blade body lower length section contours of the turbine blade 6, and the plurality of pressing limiting portions can jointly fit and press the plurality of blade body upper length section contours of the turbine blade 6, which is beneficial to increase the contact area of the lifting limiting portion and the pressing limiting portion with the blade body 61 of the turbine blade 6, thereby improving the reliability and stability of the lifting limiting portion and the pressing limiting portion in locking the blade body 61, and avoiding deformation of the blade body 61 of the turbine blade 6 due to excessive local pressure caused by extrusion of the lifting limiting portion and the pressing limiting portion.

[0097] In one embodiment of the present application, the first installation positioning portion of the tenon 60 of the plurality of turbine blades 6 fixed by the clamping device is ground by the grinding wheel installed on the grinding machine, which includes:

[0098] According to the first preset grinding amount of the first installation positioning portion of the tenon 60 of the plurality of turbine blades 6, the current feed grinding amount of the grinding wheel installed on the grinding machine is adjusted, and the first preset grinding amount of the first installation positioning portion of the tenon 60 of the plurality of turbine blades 6 is completed by the grinding wheel.

[0099] The second installation positioning portion of the tenon 60 of the plurality of turbine blades 6 fixed by the clamping device is ground by the grinding wheel installed on the grinding machine, which includes:

[0100] According to the second preset grinding amount of the second installation positioning portion of the tenon 60 of the plurality of turbine blades 6, the current feed grinding amount of the grinding wheel installed on the grinding machine is adjusted, and the second preset grinding amount of the second installation positioning portion of the tenon 60 of the plurality of turbine blades 6 is completed by the grinding wheel.

[0101] In the present embodiment, as shown in Figure 6 and Figure 7 the first preset grinding amount of the first installation positioning portion of the tenon 60 of the plurality of turbine blades 6 is completed by the grinding wheel, and the second preset grinding amount of the second installation positioning portion of the tenon 60 of the plurality of turbine blades 6 is completed by the grinding wheel, which is beneficial to sequentially grind the plurality of turbine blades 6, improve the processing efficiency, and improve the consistency of grinding the plurality of turbine blades 6.

[0102] In one embodiment of the present application,Figure 6 and Figure 7 As shown in

[0103] Placing multiple turbine blades 6 on multiple blade clamping stations provided on the clamping device of the grinding machine, locking and fixing multiple turbine blades 6 placed on multiple blade clamping stations through locking members, so that the tenon 60 of multiple turbine blades 6 locked and fixed on multiple blade clamping stations is inclined upward, and a first included angle is formed between the center plane passing through the center of the tenon 60 of multiple turbine blades 6 locked and fixed on multiple blade clamping stations and the horizontal plane, wherein the angle of the first included angle is any value in 10°-30°.

[0104] In this embodiment, as shown in Figure 6 and Figure 7 After locking and fixing multiple turbine blades 6 placed on multiple blade clamping stations through locking members, the tenon 60 of the turbine blade 6 is inclined, a first included angle is formed between the center plane passing through the center of the tenon 60 of multiple turbine blades 6 locked and fixed on multiple blade clamping stations and the horizontal plane, and the angle of the first included angle is any value in 10°-30°, which is beneficial to form a tenon with a complete root round on the tenon 60 of the turbine blade 6 through grinding processing, and improve the compactness of the tenon and the tooth groove in the mortise slot of the turbine disk when the turbine blade 6 with the tenon with a complete root round is installed on the turbine disk, thereby improving the reliability and stability of the installation and positioning of the turbine blade 6, and also improving the reliability and stability of the turbine blade 6 with the tenon with a complete root round installed on the aero-engine.

[0105] According to another aspect of the present application, a grinding machine for turbine blade tenon grinding processing and forming of an aero-engine is provided for implementing the above-mentioned method for turbine blade tenon grinding processing and forming of an aero-engine, as shown in Figures 2 to 7 , comprising:

[0106] A bed body;

[0107] A workbench installed on the bed body;

[0108] A clamping device installed on the workbench, the clamping device being provided with multiple blade clamping stations, and the multiple blade clamping stations being capable of simultaneously clamping and locking the blade 61 of multiple turbine blades 6;

[0109] A grinding processing driving device installed on the bed body;

[0110] The grinding wheel frame is mounted on the grinding drive device and located on the upper side of the worktable. The grinding wheel frame is equipped with a grinding wheel facing the tenon 60 of the turbine blade 6 that is clamped and locked in the blade clamping position. The grinding wheel can perform grinding on the tenon 60 of the turbine blade 6 under the drive of the grinding drive device.

[0111] The control unit and the grinding drive are electrically connected.

[0112] In this embodiment, as Figures 2 to 7 As shown, in this embodiment, the clamping device is mounted on a workbench and has multiple blade clamping stations. These multiple blade clamping stations can simultaneously clamp and lock multiple turbine blades 6 from their blade bodies 61. This facilitates the simultaneous clamping and locking of multiple turbine blades 6 from their blade bodies 61 at the clamping stations, thus fixing and positioning the multiple turbine blades 6. Furthermore, the clamping device fixes the turbine blades 6 at their blade bodies, which helps keep the clamping device away from the tenon 60 of the turbine blade 6, thereby preventing the clamping device from being damaged by the tenon. The need to fix the tenon 60 of the turbine blade 6 causes the clamping device to restrict and interfere with the grinding of the tenon teeth on the tenon 60. This is beneficial for optimizing the design of the tenon teeth structure and for meeting the processing requirements of various tenon teeth structures. Furthermore, by clamping and locking multiple turbine blades 61 at the blade clamping station simultaneously, it is beneficial to fix multiple turbine blades 6 and grind the tenons 60 of multiple turbine blades 6, which is beneficial to improving the processing efficiency of grinding the tenons 60 of the turbine blades 6 to form tenons.

[0113] In this embodiment, the specific structures of the grinding machine bed, worktable, grinding drive device, and grinding wheel head are not illustrated. The specific structures of the grinding machine bed, worktable, grinding drive device, and grinding wheel head can be referred to the prior art, and will not be described in detail here. Furthermore, the control unit can also be obtained by adjusting it according to the processing requirements based on the prior art, and will not be described in detail here either.

[0114] One embodiment of this application, such as Figures 2 to 7 As shown, the grinding machine also includes:

[0115] The angle adjusting base 1 is installed on the workbench, and the angle adjusting support surface 10 is arranged on the angle adjusting base 1. The second included angle is formed between the angle adjusting support surface 10 and the horizontal plane. The second included angle is any value in the range of 10°-30°. When the clamping device is installed on the angle adjusting support surface 10, the tenon 60 of the plurality of turbine blades 6 fixed on the plurality of blade body clamping stations is arranged in an upward inclined manner, and the first included angle is formed between the center plane passing through the center of the tenon 60 of the plurality of turbine blades 6 and the horizontal plane. The first included angle is equal to the second included angle.

[0116] In the embodiment, as shown in Figures 2 to 7 , by installing the angle adjusting base 1 on the workbench, when the clamping device is installed on the angle adjusting support surface 10, the first included angle formed between the center plane of the center of the tenon 60 of the plurality of turbine blades 6 and the horizontal plane is equal to the second included angle. This is beneficial to grinding the tenon of the turbine blade 6 to form a tenon with a complete root round, and is beneficial to improving the compactness of the tenon and the tooth groove in the mortise of the turbine disc when the turbine blade 6 with the tenon with the complete root round is installed on the turbine disc, thereby improving the reliability and stability of the installation and positioning of the turbine blade 6, and improving the reliability and stability of the turbine blade 6 with the tenon with the complete root round installed on the aero-engine.

[0117] In the embodiment, as shown in Figures 2 to 7 , the bottom of the angle adjusting base 1 of the embodiment is a horizontal support surface. The upper side of the front part of the angle adjusting base 1 is provided with the angle adjusting support surface 10 which is inclined from high to low from front to back. The angle of the angle adjusting support surface 10 relative to the horizontal plane is 25°. The rear part of the angle adjusting base 1 is provided with the stop limiting block 11. The front side of the upper end of the stop limiting block 11 is provided with an inclined surface which is inclined from high to low from back to front. The upper part of the inclined surface is provided with a stop protrusion. The front side of the stop protrusion forms a stop surface 111. The stop surface 111 is a finish surface, which improves the accuracy of the stop limiting of the support base 2 and the stop surface 111. In addition, the angle of the angle adjusting support surface 10 relative to the horizontal plane in the embodiment can also be designed to be one angle in the range of 10°-30° and obtained by machining.

[0118] Further, as shown in Figure 4 and Figure 5 , in order to avoid the interference between the lower part of the rear side of the support base 2 and the stop limiting block 11, the relief groove 12 is arranged on the upper side of the angle adjusting base 1. The relief groove 12 penetrates the angle adjusting base 1 in the left-right direction. The relief groove 12 is located between the rear side of the angle adjusting support surface 10 and the front side of the stop limiting block 11.

[0119] Further, as shown in Figure 4 andFigure 5 As shown in the drawings, in order to facilitate the installation of the angle adjusting base 1 on the workbench, mounting support lugs 13 are connected to the left and right sides of the angle adjusting base 1, and bolt avoiding grooves 131 are arranged on the mounting support lugs 13, so that the angle adjusting base 1 can be installed on the workbench by bolts passing through the bolt avoiding grooves 131. In addition, the angle adjusting base 1 in the embodiment can also be installed on the workbench by other suitable installation methods.

[0120] Further, as shown in the drawings, Figure 4 and Figure 5 in order to facilitate the installation of the clamping device on the angle adjusting support surface 10, a plurality of bolt through holes 101 are arranged on the angle adjusting base 1, and the bolt through holes 101 vertically penetrate the angle adjusting base 1 in the vertical direction, so that the clamping device can be installed on the angle adjusting support surface 10 by bolts passing through the bolt through holes 101. Two clamping devices are installed on one angle adjusting base 1 in the embodiment, and correspondingly, two bolt through holes 101 are arranged on the angle adjusting base 1. The number and arrangement of the bolt through holes 101 can also have various forms, so that the clamping device can be reliably installed on the angle adjusting support surface 10.

[0121] As shown in the drawings, Figures 2 to 7 the clamping device is provided in plurality, and the plurality of clamping devices are linearly arranged along the length direction of the angle adjusting base 1 and installed on the angle adjusting support surface 10.

[0122] In the embodiment, as shown in the drawings, Figures 2 to 7 the clamping device is provided in plurality, and the plurality of clamping devices are linearly arranged along the length direction of the angle adjusting base 1 and installed on the angle adjusting support surface 10, which is beneficial to respectively installing a plurality of turbine blades 6 on the plurality of clamping devices, thereby increasing the number of tenons 60 of the turbine blades 6 that can be processed in turn in one grinding process, and improving the processing efficiency of grinding the tenons 60 of the turbine blades 6 to form tenon teeth.

[0123] In the embodiment, as shown in the drawings, Figures 2 to 7 the clamping device is provided in two, and the two clamping devices are linearly arranged in the left-right direction and installed on the angle adjusting support surface 10. In addition, the number of clamping devices can also be three, four, etc. according to needs, and when it is necessary to increase the number of clamping devices installed on the angle adjusting support surface 10, the length and structure of the angle adjusting base 1 can be adjusted accordingly to meet the needs of installing more clamping devices, which will not be described here.

[0124] As shown in the drawings, Figures 2 to 7 the clamping device comprises:

[0125] The support base 2 is provided with a plurality of installation avoiding grooves at intervals along the length direction thereof, and the installation avoiding grooves extend along the width direction of the support base 2.

[0126] The blade lifting limiting seat is provided with a plurality of blade lifting limiting seats corresponding to the plurality of installation avoiding grooves, and the blade lifting limiting seats are mounted on the support base 2 and located in the installation avoiding grooves respectively. The upper side of the blade lifting limiting seat is provided with a plurality of lifting limiting parts for abutting and lifting limiting the plurality of lower side length section contours of the turbine blade 6 one by one. The plurality of lifting limiting parts are arranged at intervals along the length direction of the turbine blade 6, and the plurality of lifting limiting parts can jointly abut the plurality of lower side length section contours of the turbine blade 6 to form a plurality of arc-shaped lifting limiting contact surfaces.

[0127] The blade lifting limiting seat is provided with a plurality of blade lifting limiting seats corresponding to the plurality of installation avoiding grooves, and the blade lifting limiting seats are mounted on the support base 2 and located in the installation avoiding grooves respectively. The upper side of the blade lifting limiting seat is provided with a plurality of lifting limiting parts for abutting and lifting limiting the plurality of lower side length section contours of the turbine blade 6 one by one. The plurality of lifting limiting parts are arranged at intervals along the length direction of the turbine blade 6, and the plurality of lifting limiting parts can jointly abut the plurality of lower side length section contours of the turbine blade 6 to form a plurality of arc-shaped lifting limiting contact surfaces.

[0128] In the embodiment, as Figures 2 to 7As shown, the upper side of the blade body lifting limiting seat in the embodiment is provided with a plurality of lifting limiting parts for one-to-one corresponding to the lower side length contour of the blade body of the turbine blade 6, and the plurality of lifting limiting parts can jointly limit the lower side length contour of the blade body of the turbine blade 6. Further, the lower side of the blade body pressing limiting seat is provided with a plurality of pressing limiting parts for one-to-one corresponding to the upper side length contour of the blade body of the turbine blade 6, and the plurality of pressing limiting parts can jointly limit the upper side length contour of the blade body of the turbine blade 6. The plurality of turbine blades 6 are placed between the plurality of lifting limiting parts and the plurality of pressing limiting parts, and then the blade body pressing limiting seat is moved towards the blade body lifting limiting seat and locked, which is beneficial to jointly lock the lower side length contour and the upper side length contour of the blade body of the turbine blade 6 by the plurality of lifting limiting parts and the plurality of pressing limiting parts, thereby fixing and limiting the turbine blade 6. Further, the plurality of lifting limiting parts can jointly limit the lower side length contour of the blade body of the turbine blade 6, and the plurality of pressing limiting parts can jointly limit the upper side length contour of the blade body of the turbine blade 6, which is beneficial to increase the contact area of the lifting limiting part and the pressing limiting part with the blade body 61 of the turbine blade 6, thereby improving the reliability and stability of the lifting limiting part and the pressing limiting part in locking the blade body 61, and avoiding the deformation of the blade body 61 of the turbine blade 6 due to excessive local pressure caused by the extrusion of the lifting limiting part and the pressing limiting part, and protecting the blade profile of the blade body 61 of the turbine blade 6.

[0129] In the embodiment, as shown in the drawings, Figures 2 to 7 The support seat 2 is provided with two installation avoiding grooves along the length direction, and two turbine blades 6 can be clamped and positioned on one support seat 2. Alternatively, three, four or more installation avoiding grooves can be provided according to the requirement, and the length and structure of the support seat 2 can be adjusted according to the number of installation avoiding grooves, which will not be described here.

[0130] Further, as shown in the drawings, Figures 2 to 7 The bottom of the support seat 2 is a cuboid support bottom, and the upper side of the support bottom of the support seat 2 is connected with a vertical support lug two 21 in the middle along the length direction of the support bottom of the support seat 2. The upper side of the support bottom of the support seat 2 is connected with a vertical support lug one 20 at both ends along the length direction of the support bottom of the support seat 2. The vertical support lug one 20 and the vertical support lug two 21 are parallel and arranged side by side, and the vertical support lug one 20 and the vertical support lug two 21 have a spacing to form an installation avoiding groove.

[0131] Further, as shown in Figures 2 to 7 In order to improve the installation accuracy of the support seat 2 when it is installed on the angle adjustment support surface 10, a stop block one 24 and a stop block two 25 are arranged on the bottom of the support seat 2 in the embodiment. The stop block one 24 has two blocks, the stop block two 25 has one block, the stop block two 25 is connected to the middle position of the bottom of the support seat 2, and the stop block one 24 is connected to the left and right ends of the bottom of the support seat 2. The stop block one 24 and the stop block two 25 extend in the front and back directions, the lower side of the stop block one 24 and the stop block two 25 is a finish surface, and the angle adjustment support surface 10 is also a finish surface. This is conducive to the stop of the stop block one 24 and the stop block two 25 and the angle adjustment support surface 10, reduces the stop contact area of the support seat 2 and the angle adjustment support surface 10, and thus is conducive to reducing the machining amount of the bottom surface of the support seat 2 and reducing the cost of machining the bottom surface of the support seat 2.

[0132] In the embodiment, as shown in Figures 2 to 7 The rear part of the angle adjustment pad seat 1 in the embodiment is provided with a stop limiting block 11, the front side of the upper end of the stop limiting block 11 is provided with an inclined surface inclined from high to low from back to front, the upper part of the inclined surface is provided with a stop protrusion, and the front side of the stop protrusion forms a stop surface 111. The rear side of the vertical support block one 20 in the embodiment is provided with a stop block three 202 opposite to the stop surface 111, and the rear side of the stop block three 202 is a finish surface. Further, the rear side of the vertical support block two 21 in the embodiment is provided with a stop block four opposite to the stop surface 111, and the rear side of the stop block four is a finish surface. This is conducive to the stop of the stop block three 202 and the stop block four and the stop surface 111, and improves the installation accuracy of the support seat 2 on the angle adjustment support surface 10 of the angle adjustment pad seat 1.

[0133] In the embodiment, as shown in Figures 2 to 7As shown, the front side of the vertical supporting protrusion one 20 in the embodiment is connected with a grinding guide protrusion one 203 which is perpendicular to the vertical supporting protrusion one 20; the front side of the vertical supporting protrusion two 21 in the embodiment is connected with a grinding guide protrusion two 211 which is perpendicular to the vertical supporting protrusion two 21, the grinding guide protrusion one 203 and the grinding guide protrusion two 211 are arranged in parallel, during the first grinding process of the tenon 60 of the turbine blade 6 on the mounting and clamping device, the grinding guide protrusion one 203 and the grinding guide protrusion two 211 are processed by the grinding wheel to form a grinding process guide contour, during the grinding process of the tenon 60 of the second batch of turbine blades 6, the grinding process guide contour formed on the grinding guide protrusion one 203 and the grinding guide protrusion two 211 can guide the running direction of the grinding wheel. It should be noted that the upper side and the lower side of the grinding guide protrusion one 203 and the grinding guide protrusion two 211, after the grinding process of the tenon 60 of a batch of turbine blades 6 is completed, the upper side and the lower side of the grinding guide protrusion one 203 and the grinding guide protrusion two 211 are respectively processed by the grinding wheel to form a grinding process guide contour, the grinding process guide contour is a tooth-shaped structure similar in shape to the tenon, the grinding guide protrusion one 203 and the grinding guide protrusion two 211 shown in the embodiment are in the pre-processing structure state without grinding process.

[0134] One embodiment of the present application is as follows: Figures 2 to 7 As shown, the clamping device further comprises:

[0135] The vertical movable adjusting mechanism is movably connected to the support base 2, the blade body pressing and limiting seat is movably installed on the support base 2 through the vertical movable adjusting mechanism, and the blade body pressing and limiting seat can have a pressing position and a loosening position relative to the blade body 61 of the turbine blade 6 located between the plurality of lifting limiting portions and the plurality of pressing limiting portions under the adjusting action of the vertical movable adjusting mechanism; when the blade body pressing and limiting seat is located at the pressing position, the blade body 61 of the turbine blade 6 located between the plurality of lifting limiting portions and the plurality of pressing limiting portions is fixed under the limiting action of the plurality of lifting limiting portions and the plurality of pressing limiting portions; when the blade body pressing and limiting seat is located at the loosening position, the pressing limiting portion releases the pressing on the blade body 61 of the turbine blade 6 located between the plurality of lifting limiting portions and the plurality of pressing limiting portions.

[0136] In the embodiment, as Figures 2 to 7As shown, the leaf body pressing and limiting seat in the embodiment is vertically movably installed on the support seat 2 through the vertical movement adjusting mechanism, which is favorable for the leaf body pressing and limiting seat to move in the vertical direction relative to the support seat 2 under the adjustment of the vertical movement adjusting mechanism, and is favorable for driving the leaf body pressing and limiting seat to move to the pressing position in the vertical direction and vertically press the leaf body 61 of the turbine blade 6 located between the plurality of lifting limiting parts and the plurality of pressing limiting parts, thereby improving the reliability of the pressing and fixing of the leaf body 61 of the turbine blade 6 by the plurality of lifting limiting parts and the plurality of pressing limiting parts; in addition, when the turbine blade 6 needs to be taken out, the leaf body pressing and limiting seat can be driven by the vertical movement adjusting mechanism to move vertically away from the leaf body 61 of the turbine blade 6, thereby facilitating the taking out of the turbine blade 6.

[0137] In the embodiment, as shown in the figure, Figures 2 to 7 The vertical movement adjusting mechanism in the embodiment is specifically an adjusting bolt three 531, the lower end of the adjusting bolt three 531 passes through the threaded hole three 53 provided on the sliding installation seat 5 and is threadedly connected with the threaded hole one 212 on the extension boss provided on the lower end of the front side of the vertical support block two 21, and the sliding installation seat 5 can be driven to move vertically relative to the support bottom of the support seat 2 by screwing the adjusting bolt three 531; in addition, the vertical movement adjusting mechanism can also use other applicable vertical driving members.

[0138] It should be noted that the “vertically movably installed” of the leaf body pressing and limiting seat in the embodiment on the support seat 2 is with the support bottom of the support seat 2 as the reference object of the movement direction, and after the support seat 2 is installed on the angle adjusting support surface 10 of the angle adjusting pad seat 1, the entire clamping device is inclined relative to the horizontal plane, and the movement direction of the leaf body pressing and limiting seat is perpendicular to the angle adjusting support surface 10 relative to the angle adjusting support surface 10; further, the “vertically movably installed” of the leaf body pressing and limiting seat in the embodiment on the support seat 2 can also be understood as that when the support seat 2 is not installed on the angle adjusting pad seat 1, the movement direction of the leaf body pressing and limiting seat is the vertical direction.

[0139] One embodiment of the present application, as shown in the figure, Figures 2 to 7 The leaf body pressing and limiting seat comprises:

[0140] The leaf body lifting limiting block one 3 is installed on the support seat 2 and located in the installation avoiding groove, and the upper side of the leaf body lifting limiting block one 3 is provided with a lifting limiting part one for closely lifting and limiting the lower side length profile one of the leaf body of the turbine blade 6;

[0141] The leaf body lifting limiting block two 4 is installed on the support base 2 opposite to the leaf body lifting limiting block one 3 on the width direction of the support base 2 and is located on one side of the leaf body lifting limiting block one 3, and the upper side of the leaf body lifting limiting block one 3 is provided with a lifting limiting part two for abutting and lifting limiting the leaf body lower side length profile two of the turbine blade 6, the lifting limiting part includes the lifting limiting part one and the lifting limiting part two, and the leaf body lower side length profile includes the leaf body lower side length profile one and the leaf body lower side length profile two.

[0142] In the embodiment, as shown in the figure, Figures 2 to 7 The lifting limiting part one in the embodiment can abut and lift limit the leaf body lower side length profile one of the turbine blade 6, which is conducive to increasing the contact area of the lifting limiting part one and the leaf body lower side length profile one; the lifting limiting part two can abut and lift limit the leaf body lower side length profile two of the turbine blade 6, which is conducive to increasing the contact area of the lifting limiting part two and the leaf body lower side length profile two, and the lifting limiting part one and the lifting limiting part two jointly lift limit the leaf body 61 in the length direction of the leaf body 61 of the turbine blade 6, which avoids the local pressure caused by the small contact area between the leaf body lower side length profile and the lifting limiting part during the process of pressing the leaf body 61 of the turbine blade 6, thereby preventing the deformation of the leaf body 61, and improves the reliability of the lifting limiting part in lifting limiting the leaf body 61 of the turbine blade 6, and is conducive to protecting the airfoil of the leaf body 61 of the turbine blade 6.

[0143] In the embodiment, as shown in the figure, Figures 2 to 7 The support base 2 in the embodiment is provided with a plurality of installation positioning holes one 22 and threaded holes one 23 on the support bottom, the plurality of installation positioning holes one 22 and the plurality of threaded holes one 23 respectively vertically pass through the support bottom of the support base 2 and communicate with the installation avoiding groove, the bottom one of the leaf body lifting limiting block one 3 is provided with a plurality of installation positioning holes two opposite to the plurality of installation positioning holes one 22, the bottom one of the leaf body lifting limiting block one 3 is provided with a plurality of threaded holes two opposite to the plurality of threaded holes one 23, and an installation positioning pin one 32 is installed in the installation positioning hole one 22 and extends upward out of the installation positioning hole one 22, in the process of installing the leaf body lifting limiting block one 3 on the support base 2, the installation positioning holes two are aligned with the installation positioning pin one 32 for installation, thereby positioning the installation of the leaf body lifting limiting block one 3, and then a locking bolt one 33 is used to pass through the threaded hole one 23 and is threadedly connected with the threaded hole two, thereby locking and installing the leaf body lifting limiting block one 3 on the support base 2.

[0144] Further, as shown in the figure, Figures 2 to 7As shown, the support bottom of the support base 2 in the embodiment further has a plurality of mounting positioning holes three and threaded through holes four, the plurality of mounting positioning holes three and the plurality of threaded through holes four vertically pass through the support bottom of the support base 2 and communicate with the mounting avoiding grooves, and the plurality of mounting positioning holes three and the plurality of threaded through holes four are located at the rear side of the plurality of mounting positioning holes one 22 and the plurality of threaded through holes one 23, the bottom of the blade body lifting limiting block two 4 has a plurality of mounting positioning holes four opposite to the plurality of mounting positioning holes three, and the bottom of the blade body lifting limiting block two 4 has a plurality of threaded holes three opposite to the plurality of threaded through holes four, mounting positioning pins two 41 are mounted in the mounting positioning holes three, the mounting positioning pins two 41 upwardly extend out of the mounting positioning holes three, in the process of mounting the blade body lifting limiting block two 4 on the support base 2, the mounting positioning holes four are aligned with the mounting positioning pins two 41 for mounting, so that the mounting of the blade body lifting limiting block two 4 is positioned, then locking bolts two 42 are used to pass through the threaded through holes four and are threadedly connected with the threaded holes three, so that the blade body lifting limiting block two 4 is locked and mounted on the support base 2.

[0145] Further, as shown in the drawings, Figures 2 to 7 The mounting positioning hole one 22 and the threaded through hole one 23 in the embodiment are respectively provided with two mounting positioning holes three and threaded through holes four; in addition, the blade body lifting limiting block one 3 and the blade body lifting limiting block two 4 in the embodiment can also be mounted on the support base 2 by other mounting modes.

[0146] Further, in order to improve the installation positioning precision and positioning speed of the turbine blade 6 in the front-rear direction, a limiting tip 31 is mounted on the front side of the blade body lifting limiting block one 3, in the process of mounting the turbine blade 6 on the mounting and clamping device, the rear side of the tenon 60 of the turbine blade 6 is abutted against the limiting tip 31, and the limiting tip 31 can be used for installation positioning of the turbine blade 6 in the front-rear direction. It should be noted that in the case where the limiting tip 31 is not provided, the rear side of the tenon 60 of the turbine blade 6 can be directly abutted against the front side of the blade body lifting limiting block one 3, so as to realize installation positioning of the turbine blade 6 in the front-rear direction, and other installation positioning modes in the prior art can also be used for installation positioning of the turbine blade 6 in the front-rear direction.

[0147] One embodiment of the present application is shown in the drawings, and the blade body pressing limiting seat comprises: Figures 2 to 7

[0148] A sliding mounting seat 5 is slidably mounted on the support base 2, and the sliding mounting seat 5 can slide in the vertical direction under the driving of the vertical movable adjusting mechanism;

[0149] ​Blade clamping limit block 55, blade clamping limit block 55 is installed on the lower side of the sliding mounting seat 5 and located in the mounting clearance groove, directly opposite blade lifting limit block 3. The lower side of blade clamping limit block 55 is provided with blade clamping part 1 for fitting, clamping and limiting the upper length section contour of turbine blade 6.

[0150] Blade clamping limit block 2 56 is mounted on the lower side of the sliding mounting base 5 and on one side of blade clamping limit block 1 55, directly opposite blade lifting limit block 2 4 in the width direction of the support base 2. The lower side of blade clamping limit block 2 56 is provided with clamping limit part 2 562 for fitting and clamping limit on the upper length section profile 2 of the turbine blade 6. The clamping limit part includes clamping limit part 1 552 and clamping limit part 2 562. The upper length section profile of the blade includes upper length section profile 1 and upper length section profile 2.

[0151] In this embodiment, as Figures 2 to 7 As shown, in this embodiment, the first blade clamping part can fit and clamp the upper length section contour of the turbine blade 6, which helps to increase the contact area between the first blade clamping part and the upper length section contour. The second blade clamping part can fit and clamp the upper length section contour of the turbine blade 6, which helps to increase the contact area between the second blade clamping part and the upper length section contour. The first and second blade clamping parts together clamp and limit the blade body 61 along the length direction of the blade body 61 of the turbine blade 6. During the clamping process of the blade body 61 of the turbine blade 6, the small contact area between the upper length section contour and the blade clamping part is avoided to prevent local pressure from forming and causing deformation of the blade body 61. This improves the reliability of the blade clamping part clamping and limiting the blade body 61 of the turbine blade 6 and helps to protect the blade shape of the blade body 61 of the turbine blade 6.

[0152] In this embodiment, as Figures 2 to 7 As shown, in this embodiment, the support base 2 has a vertical support protrusion 1 20 and a vertical support protrusion 21 on its support bottom. The sliding mounting base 5 is slidably mounted on the vertical support protrusion 1 20 and the vertical support protrusion 21. Specifically, in this embodiment, the sliding mounting base 5 is approximately rectangular, and horizontally extending protrusions 50 are connected to both ends of the sliding mounting base 5 in the length direction. Furthermore, the two vertical support protrusions 1 20 are respectively provided with vertical sliding guide grooves 201, and the horizontally extending protrusions 50 extend into the vertical sliding guide grooves 201. The front and rear sides of the horizontally extending protrusions 50 are respectively fitted and abutted against the inner sidewalls of the vertical sliding guide grooves 201. Furthermore, in this embodiment, the rear side of the middle part of the sliding mounting base 5 is provided with a guide limiting groove 54 facing the vertical support protrusion 21.

[0153] In this embodiment, asFigures 2 to 7 As shown, the lower end of the front side of the vertical supporting protrusion two 21 in the embodiment is provided with an extension boss, and the extension boss is provided with a threaded hole one 212. Correspondingly, the sliding mounting seat 5 is provided with a threaded through hole three 53 opposite to the threaded hole one 212. The vertical movable adjusting mechanism in the embodiment is specifically an adjusting bolt three 531. The adjusting bolt three 531 passes through the threaded through hole three 53 downward and is threadedly connected with the threaded hole one 212. By screwing the adjusting bolt three 531, the adjusting bolt three 531 can drive the sliding mounting seat 5 to move vertically relative to the supporting bottom of the supporting seat 2.

[0154] It should be noted that the profiles of the blade body 61 of the turbine blade 6 at different length positions are different for different types and different specifications of the turbine blade 6. Therefore, the structures of the pressing and limiting part one 552 and the pressing and limiting part two 562 need to be designed according to the specific turbine blade 6 to be clamped, so that the pressing and limiting part one 552 and the pressing and limiting part two 562 can be tightly pressed against the blade body 61 of the turbine blade 6. In addition, the selection of the blade body upper length profile one and the blade body upper length profile two in the embodiment also has multiple options.

[0155] Further, it should be noted that the sliding of the sliding mounting seat 5 in the vertical direction under the driving of the vertical movable adjusting mechanism is with the supporting bottom of the supporting seat 2 as the reference object of the moving direction. After the supporting seat 2 is installed on the angle adjusting support surface 10 of the angle adjusting base 1, the entire clamping device is inclined relative to the horizontal plane, and the moving direction of the blade body pressing and limiting seat is perpendicular to the angle adjusting support surface 10 relative to the angle adjusting support surface 10. Further, the sliding of the sliding mounting seat 5 in the vertical direction under the driving of the vertical movable adjusting mechanism can also be understood as that, when the supporting seat 2 is not installed on the angle adjusting base 1, the moving direction of the sliding mounting seat 5 is the vertical direction.

[0156] In the embodiment, as shown in Figures 2 to 7 and Figures 2 to 7 In order to facilitate the installation of the clamping device on the angle adjusting support surface 10, two bolt through holes one 101 are arranged on the angle adjusting base 1 in the embodiment. The bolt through holes one 101 vertically pass through the angle adjusting base 1 in the vertical direction. The bolt through holes two 213 are arranged on the vertical supporting protrusion two 21 opposite to the bolt through holes one 101. The clamping device can be installed on the angle adjusting support surface 10 by using a bolt to pass through the bolt through holes one 101 and the bolt through holes two 213 and threadedly connect with a nut. In addition, the installation of the clamping device on the angle adjusting support surface 10 can also use other installation methods.

[0157] Further, the upper end of the vertical supporting protrusion two 21 is provided with a stop supporting protrusion 214, the top surface of the stop supporting protrusion 214 is flush with the top surface of the vertical supporting protrusion one 20, so that when the clamping device is installed upside down, the top surface of the stop supporting protrusion 214 and the top surface of the vertical supporting protrusion one 20 are inverted and stop the angle adjusting supporting surface 10.

[0158] One embodiment of the present application is shown in Figures 2 to 7 The lower side of the sliding mounting seat 5 is provided with a vertical guide groove one 51, the blade pressing limiting block one 55 is installed in the vertical guide groove one 51 through an adjusting bolt one 521, the adjusting bolt one 521 is threadedly connected with a vertical threaded hole one provided on the sliding mounting seat 5, the upper end and the lower end of the adjusting bolt one 521 respectively pass through the vertical threaded hole one, the blade pressing limiting block one 55 is installed on the lower end of the adjusting bolt one 521, when the adjusting bolt one 521 is screwed, the blade pressing limiting block one 55 vertically moves in the vertical direction under the guidance of the vertical guide groove one 51;

[0159] The lower side of the sliding mounting seat 5 is provided with a vertical guide groove two, the blade pressing limiting block two 56 is installed in the vertical guide groove two through an adjusting bolt two 522, the adjusting bolt two 522 is threadedly connected with a vertical threaded hole two 52 provided on the sliding mounting seat 5, the upper end and the lower end of the adjusting bolt two 522 respectively pass through the vertical threaded hole two 52, the blade pressing limiting block two 56 is installed on the lower end of the adjusting bolt two 522, when the adjusting bolt two 522 is screwed, the blade pressing limiting block two 56 vertically moves in the vertical direction under the guidance of the vertical guide groove two.

[0160] In the embodiment, as Figures 2 to 7As shown, the leaf body pressing limiting block one 55 in the embodiment is installed in the vertical guide slot one 51 on the lower side of the sliding mounting seat 5 through the adjusting bolt one 521, the adjusting bolt one 521 is threadedly connected with the vertical threaded through hole one, the height position of the leaf body pressing limiting block one 55 in the vertical direction is adjusted by screwing the adjusting bolt one 521, the leaf body pressing limiting block one 55 is convenient for pressing or releasing the pressing of the blade 61 of the turbine blade 6; similarly, the leaf body pressing limiting block two 56 in the embodiment is installed in the vertical guide slot two on the lower side of the sliding mounting seat 5 through the adjusting bolt two 522, the adjusting bolt two 522 is threadedly connected with the vertical threaded through hole two 52, the height position of the leaf body pressing limiting block two 56 in the vertical direction is adjusted by screwing the adjusting bolt two 522, and the leaf body pressing limiting block two 56 is also convenient for pressing or releasing the pressing of the blade 61 of the turbine blade 6, so that the blade 61 of the turbine blade 6 is conveniently pressed or released by the leaf body pressing limiting block one 55 and the leaf body pressing limiting block two 56. Further, the vertical threaded through hole one and the vertical threaded through hole two 52 are respectively provided with two, and the two vertical threaded through holes one are located on the front side of the two vertical threaded through holes two 52.

[0161] In the embodiment, as shown in the figure, Figures 2 to 7 The vertical guide slot one 51 is provided on the front of the lower side of the sliding mounting seat 5, the vertical guide slot one 51 has a cuboid hollow structure, the vertical guide slot one 51 penetrates the sliding mounting seat 5 in the left-right direction, and the upper end of the leaf body pressing limiting block one 55 is provided with an installation slot one 551; further, two vertical threaded through holes one are provided on the sliding mounting seat 5 in the vertical direction and opposite to the installation slot one 551; further, the lower end of the adjusting bolt one 521 is provided with a clamping protrusion one 5211, the adjusting bolt one 521 is threadedly connected with the vertical threaded through hole one, the adjusting bolt one 521 is screwed, the lower end of the adjusting bolt one 521 protrudes out of the installation slot one 551, the clamping protrusion one 5211 is clamped into the installation slot one 551, and the adjusting bolt one 521 is reversely screwed, so that the upper part of the leaf body pressing limiting block one 55 is accommodated in the vertical guide slot one 51, the front side and the rear side of the upper part of the leaf body pressing limiting block one 55 are respectively abutted against the front side wall and the rear side wall of the vertical guide slot one 51, the vertical guide slot one 51 guides and limits the downward movement of the leaf body pressing limiting block one 55 when the adjusting bolt one 521 is screwed downward to drive the leaf body pressing limiting block one 55 to move downward to press the blade 61 of the turbine blade 6, and the height position of the leaf body pressing limiting block one 55 in the vertical direction is adjusted. It should be noted that the "vertical direction" in the embodiment is understood as the reference direction of the support seat 2 without being installed on the angle adjusting pad seat 1.

[0162] Further, the vertical guide groove two is provided on the rear of the lower side of the sliding mounting seat 5, penetrates the sliding mounting seat 5 in the left-right direction, and the upper end of the blade pressing limiting block two 56 is provided with a mounting slot two 561; further, two vertical threaded holes two 52 are provided on the sliding mounting seat 5 in the vertical direction and opposite the mounting slot two 561; further, the lower end of the adjusting bolt two 522 is provided with a clamping protrusion two 5221, the adjusting bolt two 522 is screwed with the vertical threaded hole two 52, the adjusting bolt two 522 is screwed to make the lower end of the adjusting bolt two 522 protrude out of the mounting slot two 561, then the clamping protrusion two 5221 is clamped into the mounting slot two 561, and then the adjusting bolt two 522 is screwed in the opposite direction to make the upper part of the blade pressing limiting block two 56 received in the vertical guide groove two, and the front side and the rear side of the upper part of the blade pressing limiting block two 56 are respectively attached to the front side wall and the rear side wall of the vertical guide groove two to stop, when it is needed to screw the adjusting bolt two 522 downward to drive the blade pressing limiting block two 56 to move downward to press the blade 61 of the turbine blade 6, the vertical guide groove two guides and limits the downward movement of the blade pressing limiting block two 56, which is convenient for adjusting the height position of the blade pressing limiting block two 56 in the vertical direction. It should be noted that the structure of the vertical guide groove two in the embodiment is the same as that of the vertical guide groove one 51, and the structure of the vertical guide groove two and that of the vertical guide groove one 51 can also be different.

[0163] In the embodiment, as shown in Figures 2 to 7 The vertical support protrusion one 20 is provided with a threaded hole five vertically provided on the vertical support protrusion one 20 and communicated with the vertical sliding guide groove 201, and the horizontal extension protrusion 50 is provided with a bolt hole three 501 opposite the threaded hole five, and the horizontal extension protrusion 50 can be locked by a locking bolt three 502, specifically, the locking bolt three 502 passes through the bolt hole three 501 and is screwed with the threaded hole five.

[0164] In the embodiment, as shown in Figures 2 to 7As shown, by clamping the turbine blades 6 between the blade body lifting limiting block one 3 and the blade body lifting limiting block two 4 provided on the clamping device mounted on the grinding machine, and then rotating the adjusting bolt three 531, the sliding mounting seat 5 can be driven to move downward by the adjusting bolt three 531 until the blade body pressing limiting block one 55 and the blade body pressing limiting block two 56 press the turbine blades 6, and then the turbine blades 6 are further locked and fixed by rotating the locking bolt three 502, thereby improving the reliability of locking and fixing the turbine blades 6. It should be noted that the height position of the blade body pressing limiting block one 55 and the blade body pressing limiting block two 56 can be adjusted in advance according to needs, so that by rotating the adjusting bolt three 531, the blade body pressing limiting block one 55 and the blade body pressing limiting block two 56 can be respectively attached to the body side length profile one and the blade body side length profile two to achieve locking and fixing of the two turbine blades 6; further, the adjusting bolt three 531 is located at the middle position of the two installation avoiding grooves, and in the process of driving the sliding mounting seat 5 to press the two turbine blades 6 by rotating the adjusting bolt three 531, the consistency of the pressure on the two turbine blades 6 is high, thereby improving the consistency of pressing the two turbine blades 6, and thereby facilitating improving the consistency of grinding the two turbine blades 6.

[0165] One embodiment of the present application is as shown in the accompanying drawings, Figures 2 to 7 As shown, the blade body lower side length profile one is an arc-shaped protrusion one, the blade body lower side length profile two is an arc-shaped protrusion two, the lifting limiting part one is a concave limiting groove one 30, and the lifting limiting part two is a concave limiting groove two 40; when the inner side wall of the concave limiting groove one 30 is attached to the arc-shaped protrusion one, a plurality of lifting limiting contact surfaces can be formed on the arc-shaped protrusion one; when the inner side wall of the concave limiting groove two 40 is attached to the arc-shaped protrusion two, a plurality of lifting limiting contact surfaces can be formed on the arc-shaped protrusion two.

[0166] The blade body upper side length profile one is an arc-shaped recess groove one, the blade body upper side length profile two is an arc-shaped recess groove two, the lower side of the pressing limiting part one 552 is an arc-shaped protrusion three, and the lower side of the pressing limiting part two 562 is an arc-shaped protrusion four; when the arc-shaped protrusion three is attached to the arc-shaped recess groove one, a plurality of pressing limiting contact surfaces can be formed on the inner side wall of the arc-shaped recess groove one; when the arc-shaped protrusion four is attached to the arc-shaped recess groove two, a plurality of pressing limiting contact surfaces can be formed on the inner side wall of the arc-shaped recess groove two.

[0167] In the present embodiment, as shown in the accompanying drawings, Figures 2 to 7As shown, when the inner side wall of the recessed limiting groove one 30 and the arc-shaped protrusion one abut and stop contacting, a plurality of supporting limiting contact surfaces can be formed on the arc-shaped protrusion one, and when the inner side wall of the recessed limiting groove two 40 and the arc-shaped protrusion two abut and stop contacting, a plurality of supporting limiting contact surfaces can be formed on the arc-shaped protrusion two, so that a plurality of supporting limiting contact surfaces are formed on the lower side length profile of the blade body, and the contact area of the lower side length profile of the blade body is increased. Further, when the arc-shaped protrusion three and the arc-shaped recessed groove one abut and stop contacting, a plurality of pressing limiting contact surfaces can be formed on the inner side wall of the arc-shaped recessed groove one, and when the arc-shaped protrusion four and the arc-shaped recessed groove two abut and stop contacting, a plurality of pressing limiting contact surfaces can be formed on the inner side wall of the arc-shaped recessed groove two, so that a plurality of pressing limiting contact surfaces are formed on the upper side length profile of the blade body, and the contact area of the upper side length profile of the blade body is increased. During the pressing of the blade body 61 of the turbine blade 6, the small contact area of the lower side length profile and the upper side length profile of the blade body is avoided to form local pressure and cause the deformation of the blade body 61, so that the reliability of the pressing and limiting of the blade body 61 of the turbine blade 6 is improved, and the blade profile of the blade body 61 of the turbine blade 6 is protected.

[0168] In the embodiment, as shown, Figures 2 to 7 Figures 2 to 7 Figures 2 to 7 Figures 2 to 7 Figures 2 to 7 Figures 2 to 7 Figures 2 to 7 Figures 2 to 7 Figures 2 to 7 Figures 2 to 7 Figures 2 to 7 Figures 2 to 7 Figures 2 to 7 Figures 2 to 7 Figures 2 to 7 Figures 2 to 7 Figures 2 to 7 Figures 2 to 7 Figures 2 to 7 Figures 2 to 7 Figures 2 to 7 Figures 2 to 7 Figures 2 to 7 Figures 2 to 7 Figures 2 to 7 Figures 2 to 7 The specific structural profile of the recessed limiting groove one 30 and the recessed limiting groove two 40 in the embodiment can be designed according to the profile of the upper side length profile one and the upper side length profile two of the blade body which need to be supported and supported. The arc-shaped protrusion three and the arc-shaped protrusion four are arc surfaces, and the specific structural profile of the arc-shaped protrusion three and the arc-shaped protrusion four can be designed according to the profile of the upper side length profile one and the upper side length profile two of the blade body which need to be pressed and limited.

[0169] It should be noted that the turbine blade 6 shown in the embodiment is a small blade, and the turbine blade 6 is used to more intuitively state the present application. The clamping device in the embodiment is not limited to only clamping the turbine blade 6 shown. When other specifications or types of turbine blades 6 need to be clamped, the clamping device can be adaptively optimized on the basis of the present application to achieve the clamping. In addition, there are many types and specifications of turbine blades 6, and the blade body 61 of the turbine blade 6 also has many types. The structure of the arc-shaped protrusion three, the arc-shaped protrusion four, the recessed limiting groove one 30 and the recessed limiting groove two 40 in the embodiment can be adjusted according to the specific profile of the blade body 61 of the turbine blade 6.

[0170] In addition, in addition to the technical solutions disclosed in the embodiment, other structures of the turbine blade 6, the control unit and the grinding machine in the present application and the working principle thereof can refer to the conventional technical solutions in the technical field, and these conventional technical solutions are not the focus of the present application. The present application does not perform detailed description here.

[0171] It should be noted that the terms "comprises" and "comprising" used herein are not intended to exclude any elements except the stated ones. The terms "comprises" and "comprising" are used in the sense of "including at least the recited elements". The terms "based on" and "in response to" are used in the sense of "based, at least in part, on", and "in response, at least in part, to". The terms "one embodiment", "an embodiment", "some embodiments", "one particular embodiment" and "some particular embodiments" as used herein refer to "one or more embodiments". The terms "another embodiment" and "another particular embodiment" as used herein refer to "at least one additional embodiment".

[0172] The word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations. The specific features, structures, or characteristics described in the specification, tangent drawings, or example can be combined in any manner and / or parentage to create additional implementations. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. The use of the terms "may" and "can" in the specification is intended to convey that the feature being described is in some embodiments optional. The use of the term "comprising" in the specification is intended to convey that the implementation "includes" the recited features but "not necessarily" excludes other features. The use of the term "comprising" in the specification is intended to convey that the implementation "includes" the recited features but "not necessarily" excludes other features. The use of the term "comprising" in the specification is intended to convey that the implementation "includes" the recited features but "not necessarily" excludes other features.

[0173] The preferred embodiments of this application are thus described. While the present application has been described above with particularity, and reference being made to the drawings attached thereto, it will be understood that various modifications and changes can be made to the embodiments of the disclosed application without departing from the spirit and scope of the application. There are many alternatives that fall within the scope of the present application. It is therefore desired that the present application be interpreted as broad as it will fairly be construed and shall be determined equivalently broad as the scope of the appended claims.

Claims

1. A grinder for the profile forming of a tenon of a turbine blade of an aeroengine, characterized in that, The utility model relates to a turbine blade grinding device, comprising: a bed body; a worktable mounted on the bed body; a clamping device mounted on the worktable, the clamping device being provided with a plurality of blade body clamping stations, the plurality of blade body clamping stations being capable of simultaneously clamping and locking a plurality of turbine blade bodies; a grinding processing driving device mounted on the bed body; a grinding wheel frame mounted on the grinding processing driving device and located on the upper side of the worktable, the grinding wheel frame being provided with a grinding wheel opposite the tenon of the turbine blade clamped and locked in the blade body clamping station, the grinding wheel being capable of performing grinding processing on the tenon of the turbine blade under the driving of the grinding processing driving device; a control unit, the grinding processing driving device being electrically connected to the control unit; an angle adjustment pad seat mounted on the worktable, the angle adjustment pad seat being provided with an angle adjustment support surface, the angle adjustment support surface and a horizontal plane forming a second included angle, wherein the angle of the second included angle is any value in the range of 10°-30°; when the clamping device is mounted on the angle adjustment support surface, the tenons of a plurality of turbine blades locked and fixed in a plurality of blade body clamping stations are arranged in an upward inclined manner, and a central plane passing through the centers of the tenons of a plurality of turbine blades and the horizontal plane form a first included angle, the angle of the first included angle being equal to the angle of the second included angle; the clamping device is provided with a plurality of clamping devices, the plurality of clamping devices being linearly arranged along the length direction of the angle adjustment pad seat and mounted on the angle adjustment support surface; the clamping device comprises: a support seat, the support seat being provided with a plurality of installation avoidance grooves spaced apart along the length direction of the support seat, the plurality of installation avoidance grooves extending along the width direction of the support seat; a plurality of blade body lifting limiting seats corresponding to the plurality of installation avoidance grooves, the blade body lifting limiting seats being mounted on the support seat and respectively located in the installation avoidance grooves, the upper side of the blade body lifting limiting seat being provided with a plurality of lifting limiting parts for one-to-one corresponding to the lower side length contour of the turbine blade body, the plurality of lifting limiting parts being spaced apart along the length direction of the turbine blade, and the plurality of lifting limiting parts being capable of collectively fitting the lower side length contour of the turbine blade body to form a plurality of arc-shaped lifting limiting contact surfaces. The leaf body pressing limiting seat is provided with a plurality of leaf body pressing limiting parts corresponding to the plurality of upper side length contour profiles of the turbine blade, the plurality of leaf body pressing limiting parts are arranged at intervals along the length direction of the turbine blade, and the plurality of leaf body pressing limiting parts can jointly fit the plurality of upper side length contour profiles of the turbine blade to form a plurality of arc-shaped pressing limiting contact surfaces.

2. The grinding machine according to claim 1, characterized in that, The clamping device further comprises: A vertical movement adjusting mechanism is movably connected to the support base, the leaf body pressing limiting seat is movably installed on the support base through the vertical movement adjusting mechanism, and the leaf body pressing limiting seat can have a pressing position and a loosening position relative to the leaf body of the turbine blade between the plurality of lifting limiting parts and the plurality of pressing limiting parts under the adjusting action of the vertical movement adjusting mechanism; when the leaf body pressing limiting seat is located at the pressing position, the leaf body of the turbine blade between the plurality of lifting limiting parts and the plurality of pressing limiting parts is fixed under the limiting action of the plurality of lifting limiting parts and the plurality of pressing limiting parts; when the leaf body pressing limiting seat is located at the loosening position, the pressing limiting parts release the pressing on the leaf body of the turbine blade between the plurality of lifting limiting parts and the plurality of pressing limiting parts.

3. The grinding machine according to claim 2, characterized in that The leaf body lifting limiting seat comprises: A leaf body lifting limiting block one is installed on the support base and located in the installation avoiding groove, and an upper side of the leaf body lifting limiting block one is provided with a lifting limiting part one for fitting and lifting limiting the first lower side length contour profile of the turbine blade; A leaf body lifting limiting block two is installed on the support base and located on one side of the leaf body lifting limiting block one opposite to the leaf body lifting limiting block one along the width direction of the support base, and an upper side of the leaf body lifting limiting block two is provided with a lifting limiting part two for fitting and lifting limiting the second lower side length contour profile of the turbine blade, the lifting limiting parts comprise the lifting limiting part one and the lifting limiting part two, and the lower side length contour profiles comprise the first lower side length contour profile and the second lower side length contour profile.

4. The grinding machine according to claim 3, characterized in that The leaf body pressing limiting seat comprises: A sliding installation base is slidably installed on the support base, and the sliding installation base can slide in the vertical direction under the driving of the vertical movement adjusting mechanism; The leaf body pressing limiting block one is installed on the lower side of the sliding mounting seat and located in the installation avoiding groove, and the lower side of the leaf body pressing limiting block one is provided with a leaf body pressing part one for abutting and pressing limiting the profile one of the upper side length section of the turbine blade; The leaf body pressing limiting block two is installed on the lower side of the sliding mounting seat and located on one side of the leaf body pressing limiting block one in the width direction of the support seat, and the lower side of the leaf body pressing limiting block two is provided with a pressing limiting part two for abutting and pressing limiting the profile two of the upper side length section of the turbine blade, the pressing limiting parts include the pressing limiting part one and the pressing limiting part two, and the upper side length section profiles include the profile one and the profile two.

5. The grinding machine according to claim 4, characterized in that The lower side of the sliding mounting seat is provided with a vertical guide groove one, the leaf body pressing limiting block one is installed in the vertical guide groove one through an adjusting bolt one, the adjusting bolt one is threadedly connected with a vertical threaded hole one provided on the sliding mounting seat, the upper end and the lower end of the adjusting bolt one respectively pass through the vertical threaded hole one, the leaf body pressing limiting block one is installed on the lower end of the adjusting bolt one, and when the adjusting bolt one is screwed, the leaf body pressing limiting block one vertically moves in the vertical direction under the guidance of the vertical guide groove one. The lower side of the sliding mounting seat is provided with a vertical guide groove two, the leaf body pressing limiting block two is installed in the vertical guide groove two through an adjusting bolt two, the adjusting bolt two is threadedly connected with a vertical threaded hole two provided on the sliding mounting seat, the upper end and the lower end of the adjusting bolt two respectively pass through the vertical threaded hole two, the leaf body pressing limiting block two is installed on the lower end of the adjusting bolt two, and when the adjusting bolt two is screwed, the leaf body pressing limiting block two vertically moves in the vertical direction under the guidance of the vertical guide groove two.

6. The grinding machine according to claim 4, wherein The profile one of the lower side length section of the leaf body is an arc-shaped protrusion one, the profile two of the lower side length section of the leaf body is an arc-shaped protrusion two, the lifting limiting part one is a recessed limiting groove one, the lifting limiting part two is a recessed limiting groove two, when the inner side wall of the recessed limiting groove one abuts against and stops the arc-shaped protrusion one, a plurality of lifting limiting contact surfaces of the arc-shaped protrusion one can be formed, and when the inner side wall of the recessed limiting groove two abuts against and stops the arc-shaped protrusion two, a plurality of lifting limiting contact surfaces of the arc-shaped protrusion two can be formed. The upper side length profile one of the blade body is an arc-shaped recess groove one, the upper side length profile two of the blade body is an arc-shaped recess groove two, the lower side of the pressing limiting part one is an arc-shaped convex three, the lower side of the pressing limiting part two is an arc-shaped convex four, when the arc-shaped convex three and the arc-shaped recess groove one are in contact, a plurality of the pressing limiting contact surfaces can be formed on the inner side wall of the arc-shaped recess groove one, when the arc-shaped convex four and the arc-shaped recess groove two are in contact, a plurality of the pressing limiting contact surfaces can be formed on the inner side wall of the arc-shaped recess groove two.

7. A method for the profile grinding of a turbine blade tenon of an aeroengine, carried out using the grinding machine according to any one of claims 1 to 6, characterized in that, The method comprises: The plurality of turbine blades are respectively clamped on the plurality of blade body clamping stations provided on the clamping device installed on the grinding machine, the blade bodies of the plurality of turbine blades are simultaneously clamped and locked on the blade body clamping stations by the clamping device, so as to fix the plurality of turbine blades, and the tenons of the plurality of turbine blades are exposed outside the clamping device; The first quasi-installation positioning part of the tenon of each of the plurality of turbine blades is ground by the grinding wheel installed on the grinding machine, so as to form a first installation positioning part; The second quasi-installation positioning part of the tenon of each of the plurality of turbine blades is ground by the grinding wheel installed on the grinding machine, so as to form a second installation positioning part; During the grinding of the first quasi-installation positioning part and the second quasi-installation positioning part of the tenon of each of the plurality of turbine blades fixed by the clamping device by the grinding wheel, the grinding wheel is located outside the clamping device, and the clamping device does not interfere with the grinding wheel.

8. The method of claim 7, wherein, Before the second quasi-installation positioning part of the tenon of each of the plurality of turbine blades fixed by the clamping device is ground by the grinding wheel installed on the grinding machine, so as to form a second installation positioning part, the method further comprises: The second quasi-installation positioning part of the tenon of each of the plurality of turbine blades fixed by the clamping device is exchanged with the first quasi-installation positioning part by turning over the clamping device, so that the plurality of turbine blades fixed by the clamping device are turned over with the clamping device.

9. The method of claim 7, wherein, The plurality of turbine blades are respectively clamped on the plurality of blade body clamping stations provided on the clamping device installed on the grinding machine, the blade bodies of the plurality of turbine blades are simultaneously clamped and locked on the blade body clamping stations by the clamping device, so as to fix the plurality of turbine blades, and the tenons of the plurality of turbine blades are exposed outside the clamping device; Plural turbine blades are respectively placed between the plurality of lifting limiting portions and the plurality of pressing limiting portions, the blade pressing limiting seat is moved towards the blade lifting limiting seat and then locked, so that the blade lower length profile and the blade upper length profile of the turbine blades between the plurality of lifting limiting portions and the plurality of pressing limiting portions are fixed under the limiting action of the plurality of lifting limiting portions and the plurality of pressing limiting portions.

10. The method of claim 7, wherein, The first quasi-mounting positioning portion of the tenon of the turbine blade fixed by the clamping device is ground by the grinding wheel mounted on the grinding machine, and the first quasi-mounting positioning portion of the tenon of the turbine blade fixed by the clamping device is ground by the grinding wheel mounted on the grinding machine. According to the first preset grinding amount of the first quasi-mounting positioning portion of the tenon of the turbine blade, the current feeding grinding amount of the grinding wheel mounted on the grinding machine is adjusted, and the first preset grinding amount of the first quasi-mounting positioning portion of the tenon of the turbine blade is completed by the grinding wheel. The second quasi-mounting positioning portion of the tenon of the turbine blade fixed by the clamping device is ground by the grinding wheel mounted on the grinding machine, and the second quasi-mounting positioning portion of the tenon of the turbine blade fixed by the clamping device is ground by the grinding wheel mounted on the grinding machine. According to the second preset grinding amount of the second quasi-mounting positioning portion of the tenon of the turbine blade, the current feeding grinding amount of the grinding wheel mounted on the grinding machine is adjusted, and the second preset grinding amount of the second quasi-mounting positioning portion of the tenon of the turbine blade is completed by the grinding wheel.

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