Turbine blade correcting and correcting device

Abstract

The utility model provides a turbine blade correcting and correcting device which comprises a portal frame, a correcting and correcting driving gear motor, a shifting assembly and a profiling clamp, the correcting and correcting driving gear motor can be coaxially and fixedly connected with a connecting cylinder of the shifting assembly through a connecting piece, and two shifting rods of the shifting assembly can be connected with the profiling clamp in an inserted mode. And the profiling clamp is used for clamping and fixing the turbine blade. The contact area with the blade is increased through the profiling twisting tool, the damage to the surface quality of the blade is reduced, the blade is corrected on the premise that the surface quality of the blade is protected, the product percent of pass is increased, the labor intensity is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of engine turbine blade manufacturing equipment, in particular to a turbine blade correction and correction device. Background Art

[0002] Aircraft engines are known as the "crown jewel of industry", and the turbine blades have the worst working environment and the most complex stress in aircraft gas turbine engines. If the aircraft engine is the core of the entire aircraft, then the turbine blades are the "core of the core" of the entire aircraft. Turbine blades have large distortion and complex surfaces, which are prone to deformation during production and manufacturing, seriously affecting the processing accuracy and surface quality of the blades, so correction and orthopedic treatment are required. At present, the main method of blade correction and orthopedic treatment is manual, which requires high personal skills and experience. At the same time, manual correction and orthopedic treatment has high labor intensity, low work efficiency and low product qualification rate. Utility Model Content

[0003] In view of the problems existing in the prior art, the utility model provides a turbine blade correction and correction device to improve the blade correction efficiency and product qualification rate.

[0004] A turbine blade correction and correction device, comprising:

[0005] A gantry that can move along the X-axis on the work surface along the track;

[0006] The orthopedic drive reduction motor is installed on the top of the gantry frame, and its rotating shaft is coaxially fixed with a connecting piece, and a positioning pin hole for passing the positioning pin is opened on the connecting piece;

[0007] The toggle assembly includes an intermediate disk, a connecting tube is fixedly connected to the center of the upper surface of the intermediate disk, the tube hole of the connecting tube is used to pass through the connecting piece, and a positioning pin hole is also opened on the connecting tube for passing through the positioning pin, and the connecting piece and the connecting tube can be coaxially fixedly connected to transmit power through passing through the positioning pin; two toggle rods are respectively welded and fixed to the lower surface of the intermediate disk;

[0008] The profiling fixture comprises a blade basin side component and a blade back side component. The blade basin side component is formed with a blade basin profiling curved surface imitating the surface of a standard blade basin, and the blade back side component is formed with a blade back profiling curved surface imitating the surface of a standard blade back. The blade basin side component and the blade back side component are hinged at one end and the other end is a free end. When the blade basin side component and the blade back side component clamp the turbine blade, the free end of the blade basin side component and the free end of the blade back side component can be relatively fixed, so that the profiling fixture clamps and fixes the turbine blade. The blade basin side component and the blade back side component are also respectively provided with toggle holes for passing the toggle rods corresponding to the toggle components.

[0009] Furthermore, the blade basin side component is fixed to a plate body of a hinged ear plate by welding or screwing, and the hinged end of the blade back side component is hinged to the hinged ear of the hinged ear plate by a pin shaft.

[0010] Furthermore, a rounded chamfer is formed at one corner of the hinged end of the blade back side component to avoid interference with the plate body of the hinged ear plate.

[0011] Furthermore, a through hole for passing a bolt is provided at the free end of the blade back side component, and a threaded hole for screwing with the bolt is provided at the blade basin side component. The bolt passes through the through hole and is screwed with the threaded hole, thereby fixing the free end of the blade basin side component and the free end of the blade back side component.

[0012] Furthermore, a clamping mechanism for clamping and fixing the tenon bottom of the blade to be corrected is arranged on the work surface.

[0013] Beneficial effects of the utility model:

[0014] (1) Manual correction and shaping of blades using a wrench is prone to cause surface quality defects on the blades, resulting in scrapping of the blades. The utility model's contoured twisting tool increases the contact area with the blades, reduces damage to the surface quality of the blades, and enables correction and shaping of the blades while protecting the surface quality of the blades, thereby improving the product qualification rate.

[0015] (2) Usually, a wrench is used to manually correct the blade, which causes a large twist of the blade, but the rest of the blade remains unchanged, causing the straightness of the blade exhaust edge to be scrapped. The utility model can avoid local deformation through a profiling fixture, achieve all-round twisting of the entire blade, and improve the product qualification rate.

[0016] (3) When using a wrench to manually correct the blade, the force is difficult to control and it is easy to cause over-correction. After over-correction, the blade size is scrapped. If the correction and restoration are continued, metal fatigue cracks will form inside the blade, causing the blade to be scrapped. This patent can cooperate with the PLC main controller to control the degree of deformation, avoid over-correction, and improve the product qualification rate.

[0017] (4) Reduce labor intensity and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and the description thereof are used to explain the present invention and do not constitute an improper limitation on the present invention. A person of ordinary skill in the art can obtain other relevant drawings based on these drawings without making any creative effort.

[0019] Figure 1 This is a schematic diagram of the partition of a certain type of turbine blade;

[0020] Figure 2 is a schematic diagram of a profiling fixture;

[0021] Figure 3 is a schematic diagram of a toggle assembly;

[0022] Figure 4 It is a schematic diagram of the overall structure of the utility model. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0024] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0025] like Figure 1 A certain type of turbine blade shown is divided into three areas: Zone II, Zone V and Zone VIII. Corresponding profiling fixtures are customized according to the length, thickness, curvature and contour of each area of ​​the blade: Zone II fixture, Zone V fixture and Zone VIII fixture. The corresponding profiling fixture is selected according to needs to fix the area of ​​the blade that needs correction.

[0026] like Figure 2 As shown, the profiling fixture 1 is designed in two halves, and is divided into a blade basin side component 11 and a blade back side component 12. The blade basin side component is formed with a blade basin profiling curved surface 111 that imitates the surface of a standard blade basin, and the blade back side component 12 is formed with a blade back profiling curved surface 121 that imitates the surface of a standard blade back. The blade basin side component 11 and the blade back side component 12 are hinged at one end, and the other end is a free end. When the blade basin side component 11 and the blade back side component 12 clamp the turbine blade, the free end of the blade basin side component 11 and the free end of the blade back side component 12 can be fixed by bolts, so that the profiling fixture can clamp and fix the turbine blade for subsequent correction and correction work.

[0027] Further, the specific embodiment of the hinged connection between the blade basin side component 11 and the blade back side component 12 at one end is as follows: Figure 2 As shown, the blade basin side component 11 is fixed to the plate body of a hinged ear plate 13 by welding or screwing, and the hinged end of the blade back side component 12 is hinged to the hinged ear 131 of the hinged ear plate 13 through a pin shaft (not shown in the figure), and, in order to avoid interference and obstruction of flipping, a rounded chamfer 124 is formed at a corner of the hinged end of the blade back side component 12 to facilitate its smooth flipping and opening around the hinge axis.

[0028] Furthermore, the specific structural form in which the free end of the blade basin side component 11 and the free end of the blade back side component 12 are fixed by bolts is as follows: Figure 2As shown, a through hole 123 for passing a bolt is provided at the free end of the back side component 12, and a threaded hole (not shown) for screwing with the bolt is provided at the blade basin side component 11. The bolt passes through the through hole 123 and is screwed with the threaded hole, thereby fixing the free end of the blade basin side component 11 and the free end of the back side component 12, thereby achieving the configuration clamp to clamp and fix the turbine blade.

[0029] The blade basin side component 11 and the blade back side component 12 are respectively provided with toggle holes 112 and 122 with a diameter of 30 mm for passing the toggle rods corresponding to the toggle components.

[0030] like Figure 3 The three-dimensional schematic diagram of the toggle assembly shown in the figure, the toggle assembly 2 includes an intermediate disk 21, and a connecting tube 22 is welded and fixed at the center of the upper surface of the intermediate disk 21, and the tube hole 221 of the connecting tube 22 is used to pass through the connecting piece (not shown in the figure) coaxially fixed to the rotating shaft of the orthopedic drive reduction motor 5, and the connecting piece and the connecting tube 22 are respectively provided with positioning pin holes 222 for passing the positioning pin, and the connecting piece and the connecting tube 22 are coaxially fixedly connected to transmit power through the positioning pin; two toggle rods 23 are respectively welded and fixed on the lower surface of the intermediate disk 21, which are used to pass through the corresponding toggle holes 112 and 122 on the blade basin side assembly 11 and the blade back side assembly 12 of the profiling fixture 1 respectively.

[0031] The contoured fixtures in the three regions are matched with respective toggle assemblies, the main difference being the length of the toggle rod 23, so as to facilitate extension and insertion into the toggle hole of the contoured fixture in the corresponding region.

[0032] See also Figure 4 A clamping mechanism 6 is provided on the work surface 3 for clamping and fixing the tenon bottom of the blade to be corrected, so that the blade is fixed upright on the work surface 3 as a whole. The clamping mechanism 6 can select an electric push rod, a hydraulic cylinder, etc. as a power source as needed. The structure is relatively common and will not be repeated in this article.

[0033] The orthopedic drive reduction motor 5 is fixed on the top of the gantry frame 4 and can move with the gantry frame 4; the gantry frame 4 moves along its track to just above the clamped and fixed blade, driving the orthopedic drive reduction motor 5 to also move just above the clamped and fixed blade, and selecting a matching profiling fixture 1 according to the area of ​​the blade that needs to be corrected and shaped, clamping the profiling fixture 1 on the area of ​​the blade to be corrected, and then selecting a matching toggle assembly 2, inserting the toggle rod 23 of the toggle assembly 2 into the corresponding toggle holes 112 and 122 on the blade basin side assembly 11 and the blade back side assembly 12 of the profiling fixture 1, and then sleeve the connecting tube 22 of the toggle assembly 2 with the connecting piece coaxially fixed to the rotating shaft of the orthopedic drive reduction motor 5, adjusting the orthopedic drive reduction motor 5 and the toggle assembly 2 so that the locating pin hole on the connecting tube 22 on the connecting piece is directly opposite to the locating pin, and then inserting the locating pin.

[0034] By controlling the rotation of the orthopedic drive reduction motor 5, the blade distortion is corrected and corrected through the torsion of the toggle assembly-profile fixture. In addition, the gantry body 4 can be controlled to move along its track in the X-axis direction, thereby driving the orthopedic drive reduction motor 5 to move in the X-axis direction, thereby finally achieving the X-direction correction and correction of the blade bending deformation.

[0035] The driving travel mechanism for controlling the gantry body 4 to move along its track can adopt various existing methods in the prior art, such as a structure in which a motor drives a travel wheel, which will not be described in detail herein.

[0036] The utility model provides a hardware structure foundation for a device that can replace the manual correction and orthopedic surgery performed by a wrench. On this basis, it is easy for people in this field to think of using PLC and corresponding program design to perform corresponding automatic control. This is not the discussion point of the utility model and will not be repeated in this article.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A turbine blade correction and correction device, characterized in that: include: A gantry that can move along the X-axis on the work surface along the track; The orthopedic drive reduction motor is installed on the top of the gantry frame, and its rotating shaft is coaxially fixed with a connecting piece, and a positioning pin hole for passing the positioning pin is opened on the connecting piece; The toggle assembly includes an intermediate disk, a connecting tube is fixedly connected to the center of the upper surface of the intermediate disk, the tube hole of the connecting tube is used to pass through the connecting piece, and a positioning pin hole is also opened on the connecting tube for passing through the positioning pin, and the connecting piece and the connecting tube can be coaxially fixedly connected to transmit power through passing through the positioning pin; two toggle rods are respectively welded and fixed to the lower surface of the intermediate disk; The profiling fixture comprises a blade basin side component and a blade back side component. The blade basin side component is formed with a blade basin profiling curved surface imitating the surface of a standard blade basin, and the blade back side component is formed with a blade back profiling curved surface imitating the surface of a standard blade back. The blade basin side component and the blade back side component are hinged at one end and the other end is a free end. When the blade basin side component and the blade back side component clamp the turbine blade, the free end of the blade basin side component and the free end of the blade back side component can be relatively fixed, so that the profiling fixture clamps and fixes the turbine blade. The blade basin side component and the blade back side component are also respectively provided with toggle holes for passing the toggle rods corresponding to the toggle components.

2. The turbine blade correction and orthopedic device according to claim 1, characterized in that: The blade basin side component is fixed to a plate body of a hinged ear plate by welding or screwing, and the hinged end of the blade back side component is hinged to the hinged ear of the hinged ear plate by a pin shaft.

3. The turbine blade correction and orthopedic device according to claim 2, characterized in that: A rounded chamfer is formed at one corner of the hinged end of the blade back side component to avoid interference with the plate body of the hinged ear plate.

4. The turbine blade correction and orthopedic device according to claim 1, characterized in that: A through hole for passing a bolt is provided at the free end of the blade back side component, and a threaded hole for screwing with the bolt is provided at the blade basin side component. The bolt passes through the through hole and is screwed with the threaded hole, thereby fixing the free end of the blade basin side component and the free end of the blade back side component.

5. The turbine blade correction and orthopedic device according to claim 1, characterized in that: A clamping mechanism for clamping and fixing the tenon bottom of the blade to be corrected is arranged on the work table.

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