CN109926894A - Turbine disc mortise form grinding process equipment and its application method - Google Patents

Turbine disc mortise form grinding process equipment and its application method Download PDF

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Publication number
CN109926894A
CN109926894A CN201910297259.XA CN201910297259A CN109926894A CN 109926894 A CN109926894 A CN 109926894A CN 201910297259 A CN201910297259 A CN 201910297259A CN 109926894 A CN109926894 A CN 109926894A
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grinding
turbine
turbine disk
wheel
disc mortise
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CN109926894B (en
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丁文锋
李本凯
徐九华
傅玉灿
苏宏华
赵正彩
杨长勇
陈燕
张全利
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Nanjing University of Aeronautics and Astronautics
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Nanjing University of Aeronautics and Astronautics
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Abstract

The present invention relates to turbine disc mortise form grinding process equipment and its application method, the transmission device of the equipment connects turbine disk stepper motor with the turbine disk, and the turbine disk is fixed on turbine plate clamp;Form grinding toroidal wheel using superabrasive wheel, and is mounted on machine tool chief axis;The free end of turbine plate clamp horizontal support bar and fixing end install the direction converter and rolled round that the control turbine disk axially and radially rotates respectively, drive rolled round rotation by rolled round handle, drive the turbine disk axially and radially to be rotated after the converter of direction.When grinding, toroidal wheel edgev sDirection high speed rotation controls the traverse feed of the turbine disk and the grinding depth of grinding wheel by numerical control program, then along direction of feedv wDirection removes material, and the grinding of turbine disc mortise side is completed by being back and forth ground;Then the turbine disk is inverted 180 °, completes the grinding of turbine disc mortise other side.The present invention uses traditional wire pulling method or milling mode instead large-sized grinding wheel and carries out grinding-shaping processing, improves the efficiency and precision of turbine disc mortise processing.

Description

Turbine disc mortise form grinding process equipment and its application method
Technical field:
The present invention relates to the process equipments and method for grinding of a kind of powder metallurgy high-temperature alloy turbine disc mortise form grinding.
Background technique:
The processing technology of turbine disc mortise is one of the key technology of aero-engine manufacture.Since there is tongue-and-groove material difficulty to add The features such as work, dimensional accuracy are high, flute profile is complicated, it is main at present to use the method for processing forming such as broaching, milling.As a new generation navigates The promotion of empty engine performance, powder metallurgy high-temperature alloy are widely used in the manufacture turbine disk, and the processing of tongue-and-groove also becomes more Difficulty, processing existing major defect using broaching method has: the processing performance of powder metallurgy high-temperature alloy after ageing treatment It is very poor, cause broaching tool loss big, processing cost is got higher.During broaching, cutting force is big, and broaching temperature is high, and broaching tool abrasion is tight Weight, one is only capable of processing finishing broach one part, so that processing cost is very high.The broaching of powder metallurgy high-temperature alloy turbine disc mortise Speed cutting data very little in 120-170mm/s, process, usually between 10-30 μm, wire pulling method process will appear It repeatedly forges a knife, tipping phenomenon, cutter Fast Wearing is obvious, not only makes the low efficiency of wire pulling method, but also the whirlpool processed in this way Wheel disc qualification rate is relatively low, causes the significant wastage of turbine disk blank.In addition use wire pulling method when, broaching tool manufacture it is cumbersome and And the period is long, broaching machine cost is also high;When being processed using milling mode, milling cutter construction is complicated, and milling cutter rigidity is poor, processing essence Degree is difficult to ensure.Conventional processing routes have not adapted to the processing of powder metallurgy high-temperature alloy material, it is also difficult to fully meet The production requirement of turbine disc mortise structure needs to develop new processing technology.
Through inquiring, the patent of invention of Hunan south General Aviation Engine Co., Ltd Publication No. CN108723481 A, A kind of turbine disc mortise processing method is proposed, comprising steps of 1. rough stroke, along tenon tooth tooth top benchmark on turbine disk blank Line open form slot;2. half finish draw stroke is preset tenon tooth groove location in the shape groove sidewall and is cut, to form the thick slot of tenon tooth;③ Finish draw stroke continues to cut, obtains tenon tooth slot on the basis of the tenon tooth thick slot.It can be seen that above-mentioned processing method is thick It draws and increases by half finish draw stroke between stroke and finish draw stroke, after removing the thick slot of part surplus stroke tenon tooth using half finish draw stroke, Finish draw stroke is recycled to remove remaining surplus stroke tenon tooth slot, finishing broach is cut with half finishing broach shared tenon tooth slot surplus It cuts, to reduce the surplus cut needed for each broaching tool, reduces the cutting force during broaching, the generation for the phenomenon that avoids forging a knife reaches It to protection broaching tool, prolongs its service life, improves the purpose of part processing quality.However the tongue-and-groove processing method that this patent proposes Process is tedious, reduces processing efficiency to a certain extent.
Through inquiring, the patent of invention of China Southern Airlines (Group) Corporation Publication No. CN103707016 is mentioned A kind of wire pulling method method of powder metallurgy superalloy turbine disc tongue-and-groove is gone out.According to the material property of powder metallurgy superalloy, to drawing Knife optimizes, and optimizes the material of broaching tool to improve broaching tool toughness and attrition resistance energy, optimizes the rise per tooth of broaching tool to improve and draw Knife wearability, the stationarity and precision machining of broaching tool process;Broaching tool speed is optimized to improve processing quality and subtract Few broaching tool loss;Optimized process flow is to improve broaching performance;Powder metallurgy superalloy turbine disc is to be dissolved state delivery;Powder metallurgy Alloy carries out the wire pulling method of tongue-and-groove in the case where being dissolved state;Powder metallurgy superalloy turbine disc finished product is obtained by heat treatment.It realizes both Improve broaching performance, and guarantees the requirement of the turbine disk.This patent optimizes the broaching of powder metallurgy superalloy turbine disc tongue-and-groove Processing technology, however the speed of wire pulling method is only 30-50mm/s, and process is tedious for subsequent processing, this there is processing effect The lower problem of rate is difficult meet the needs of turbine disc mortise produces processing in enormous quantities.
Through inquiring, BJ University of Aeronautics & Astronautics proposes the patent of invention of Publication No. CN104148992B, and one kind is used for The grinding processing method of impeller hub tongue-and-groove processing, steps are as follows: 1. according to the structure type of lathe and impeller hub tongue-and-groove Structure type, size determine the mounting means of impeller hub and the installation site on platen;2. selecting the mill of tongue-and-groove Processing method is cut, and determines cup emery wheel dimension of inner and outer diameters, along axial height and the shape and ruler of outer grinding working portion It is very little, guarantee that cup emery wheel avoids interfering with the other tenon tooths and hubless feature of impeller hub during being ground tongue-and-groove; It is suitble to the numerically-controlled machine tool motion mode of tongue-and-groove grinding to carry out the establishment of numerical control grinding processing program 3. choosing, passes through numerical control program The motion path for controlling cup emery wheel, to form grinding wheel to the grinding motion profile of tongue-and-groove;4. cup emery wheel is in numerical control It is rotated under the driving of machine tool chief axis, and according to the tongue-and-groove grinding side of the motion profile of nc program setting and selection Formula completes the grinding of impeller hub tongue-and-groove.This patent only proposes the grinding method of tongue-and-groove processing without being specifically described The process equipment and processing technology of form grinding tenon groove structure.
By searching document and practical investigation discovery, the processing of turbine disc mortise at present the main problems are as follows: 1. there is low efficiency, cutter life are short, low precision for the main machining method (broaching, milling etc.) of existing turbine disc mortise Problem;2. current grinding processing method (flat surface grinding, cylindricalo grinding and internal grinding etc.) cannot achieve to turbine disc mortise Grinding, that is, not yet designing the special grinding wheel and special equipment of turbine disc mortise form grinding;3. currently proposing Tongue-and-groove processing method lacks the form grinding technique for being directed to turbine disc mortise high-efficiency high-accuracy.
Summary of the invention:
In order to solve the above problem, the invention proposes a kind of powder metallurgy high-temperature alloy turbine disc mortise form grinding process equipments With method for grinding, uses traditional wire pulling method or milling mode instead large-sized grinding wheel and carry out grinding-shaping processing, improve whirlpool The efficiency and precision of wheel disc chase mortise processing.
To achieve the above object, the invention proposes following technical schemes:
A kind of turbine disc mortise form grinding process equipment, including, form grinding toroidal wheel, turbine disk stepper motor, Transmission device and turbine plate clamp;Wherein transmission device connects turbine disk stepper motor with the turbine disk, and the turbine disk is fixed on On turbine plate clamp;Form grinding is mounted on machine tool chief axis with toroidal wheel.
Form grinding toroidal wheel uses superabrasive wheel, such as: soldering superabrasive wheel, Ceramic bond Agent superabrasive wheel and plating superabrasive wheel.The turbine disk is the powder metallurgy high-temperature alloy turbine disk
Form grinding toroidal wheel uses axially symmetric structure, including grinding wheel base body and grinding layer, grinding wheel base body include knife handle and Bistrique (can be split type or integral type, grinding wheel can be either in a horizontal or vertical), grinding layer include abrasive grain and bonding agent, wherein CBN abrasive grain or diamond abrasive grain can be used in abrasive grain, and solder, ceramics or coating can be used in bonding agent;Grinding layer is arranged in bistrique On.Emery wheel grinding-head uses tenon tooth tooth form, which matches with the tongue-and-groove of the turbine disk, and grinding layer is arranged in bistrique tenon tooth Surface.
The profile of the grinding wheel base body subtracts grinding layer thickness by grinding wheel parts profile and obtains, and its precision is higher than turbine 1 ~ 2 grade of disk tongue-and-groove element precision.
The pedestal of turbine plate clamp is fixed on platen by fixing screwed hole, and vertical upright column is arranged on pedestal, Horizontal support bar is arranged in vertical post top portion.
It is provided opposite to direction converter in the free end of horizontal support bar, turbine disk in pallet, is installed on the converter of direction Rolled round handle is arranged in rolled round for rolled round, drives rolled round rotation by rolled round handle, driven after the converter of direction the turbine disk into The axial rotation of row.
Horizontal support bar fixing end, stretch out vertical support rod vertically installation direction converter, rolled round, handle, side It is connect to converter by connection cushion block with horizontal support bar, rolled round rotation is driven by rolled round handle, by direction converter The turbine disk is driven to carry out radial rotating afterwards.
The application method of turbine disc mortise form grinding process equipment, steps are as follows:
Step 1, cleaning is for workpieces processing surface;
Step 2, the assembling of turbine disc mortise form grinding process equipment;
(1), toroidal wheel is mounted on lathe;
(2), turbine disk stepper motor is connected with the turbine disk by transmission device, the turbine disk is fixed on turbine disk in pallet;
(3), precision of equipment installation is detected, it is ensured that the turbine disk is controlled with the rotation precision of turbine disk stepper motor in institute It needs in range, so that the dimensional accuracy of tongue-and-groove meets processing request after grinding;
(4), the rotation connection of the turbine disk and turbine disk in pallet and direction converter is disconnected, to pass through the turbine disk in grinding process The turbine disk is accurately controlled with stepper motor;
Step 3, clamping;By the pedestal of turbine plate clamp by turbine disk clamping in Grinder bench, and clamping position is carried out Accuracy detection, it is ensured that position precision is ± 0.01mm;
Step 4, it is ground;
(5), before grinding starts, toroidal wheel is moved in turbine disc mortise, so that the tenon tooth tooth form of emery wheel grinding-head and whirlpool The tongue-and-groove shape of wheel disc is aligned;
(6), toroidal wheel edgev sDirection high speed rotation controls the traverse feed of the turbine disk and the grinding of grinding wheel by numerical control program Depth, then along direction of feedv wDirection removes material, and the grinding of turbine disc mortise side is completed by being back and forth ground;
(7), angle needed for then being rotated the turbine disk by the step angle of programming Control turbine disk stepper motor, to next The side of tongue-and-groove is ground, vertical by the fixing end of horizontal support bar behind the side of complete turbine disc mortise to be ground The turbine disk is inverted 180 ° by direction converter, rolled round and the rolled round handle of installation, repeats above-mentioned grinding step, completes turbine disk tenon The grinding of slot other side.
Compared with prior art, the invention has the advantages that
(1) the processing and forming mode for improving turbine disc mortise, by wire pulling method or milling mode use instead large-sized grinding wheel into The processing of row grinding-shaping, proposes the equipment and technology of turbine disc mortise form grinding processing, substantially increases turbine disc mortise The efficiency and precision of processing.
(2) toroidal wheel of the present invention, structure after being optimized according to turbine disc mortise and design grinding wheel base body Structure, be able to carry out the processing of a variety of tenon groove structures;And grinding wheel base body machining accuracy is higher than 1 ~ 2 grade of part requirements precision, It can guarantee that grinding wheel has fabulous form accuracy.Furthermore it is possible to choose the abrasive grain of different-diameter according to process requirements, obtain excellent Different machining surface integrity.
(3) super-abrasive grinding wheel simplifies grinding process and equipment investment without finishing, improves turbine disc mortise grinding Overall economic efficiency.
Detailed description of the invention:
Fig. 1 is that toroidal wheel is ground turbine disc mortise schematic diagram;
Fig. 2 is that toroidal wheel is ground turbine disc mortise model schematic;
Fig. 3 is the first embodiment toroidal wheel axonometric drawing;
Fig. 4 is the three-view diagram of the first embodiment toroidal wheel structure :(a) main view, (b) left view, (c) top view;
Fig. 5 is second of embodiment toroidal wheel axonometric drawing;
Fig. 6 is the three-view diagram of second of embodiment toroidal wheel structure :(a) main view, (b) left view, (c) top view;
Fig. 7 is turbine plate clamp schematic diagram;
Fig. 8 is the first embodiment turbine disc mortise grinding method three-view diagram (a) main view, (b) left view, (c) top view;
Fig. 9 is second of embodiment turbine disc mortise grinding method three-view diagram (a) main view, (b) left view, (c) top view;
Figure 10 is that toroidal wheel is ground turbine disc mortise structure grinding process schematic diagram;
Wherein, 1- turbine disk stepper motor;2- transmission shaft;3- transmission device;4- toroidal wheel;5- machine tool chief axis;6- turbine Disk;7- turbine disc mortise;8- turbine plate clamp;9- bistrique;10- knife handle;I handle of 11- rolled round;12- rolled round I;The conversion of the direction 13- Device I;The direction 14- converter II;15- rolled round II;II handle of 16- rolled round;17- connection cushion block;The vertical support rod of 18-;The bottom 19- Seat;20- fixing screwed hole;21- horizontal support bar;22- turbine disk in pallet.
Specific embodiment:
Fig. 1 is toroidal wheel grinding turbine disc mortise schematic diagram of the present invention, and Fig. 2 is that toroidal wheel is ground turbine disc mortise Model schematic, referring to Fig.1, shown in 2, powder metallurgy high-temperature alloy turbine disc mortise form grinding process equipment, transmission device 3 Turbine disk stepper motor 1 and the turbine disk 6 are connected by transmission shaft 2,6 clamping of the turbine disk is on turbine plate clamp 8;Ring Shape grinding wheel 4 is mounted on machine tool chief axis 5, and 4 high speed rotation of toroidal wheel is ground turbine disc mortise when grinding, and grinding is completed Behind one tongue-and-groove side, the turbine disk 6 carries out another tenon in turbine disk angle needed for rotating under the drive of stepper motor 1 The grinding of slot side.
Fig. 3 is the first embodiment toroidal wheel axonometric drawing, and Fig. 4 is three views of the first embodiment toroidal wheel structure Figure, this kind of grinding wheel can be used for common horizontal grinding machine, and grinding wheel size can be designed according to the use demand of different grinding machines;Fig. 5 is Second of embodiment toroidal wheel axonometric drawing, Fig. 6 are the three-view diagram of second of embodiment toroidal wheel structure, this kind of grinding wheel is by grinding First 9 and 10 two parts of knife handle composition, it avoids and fills repeatedly using integrated design using integration or detachable design Unload and caused by Form and position error so that tongue-and-groove machining accuracy improve, using detachable design, saved material, reduced sand The manufacturing cost of wheel makes after can dismantling grinding wheel knife handle 10 with the cooperation of new bistrique after emery wheel grinding-head 9 reaches service life It can be used for vertical plain-milling machine with, this kind of grinding wheel, the size of grinding wheel knife handle 10 and bistrique 9 can be according to the use demand of different milling machines It is designed.
Fig. 7 is turbine plate clamp schematic diagram, and turbine plate clamp is by I handle 11 of rolled round, rolled round I 12, direction converter I 13, Direction converter II 14, rolled round II 15, II handle 16 of rolled round connect cushion block 17, vertical support rod 18, pedestal 19, fixed thread Hole 20, horizontal support bar 21 and turbine disk in pallet 22 form.I handle 11 of rolled round, I 13 horizontal direction of rolled round I 12 and direction converter Arrangement;And I handle 11 of rolled round, rolled round I 12 and direction converter I 13 are connect by connecting cushion block 17 with turbine disk in pallet 22, it is real The axial rotation of the existing turbine disk 6;II handle 16 of rolled round, rolled round II 15 and direction converter II 14 are vertically arranged, and II hand of rolled round Handle 16, rolled round II 15 and direction converter II 14 are connect by connecting cushion block 17 with horizontal support bar 21, realize the turbine disk 6 along water The radial rotating in flat 21 direction of support rod adjusts the position of the turbine disk 6 by rotation axially and radially;Pedestal passes through fixed spiral shell Pit is fixed on platen;Fig. 8 is the first embodiment turbine disc mortise grinding method three-view diagram, this kind of turbine disk tenon The grinding method of slot is horizontal grinding method, can be used for horizontal general-purpose grinder.Fig. 9 is second of embodiment turbine disc mortise mill Mode three-view diagram is cut, the grinding method of this kind of turbine disc mortise is vertical milling and grinding mode, can be used for vertical plain-milling machine.
Powder metallurgy high temperature is illustrated by taking the first toroidal wheel as an example below and closes the grinding of turbine disc mortise shaping structures Method:
In the present embodiment, by using a kind of Horizontal ring grinding wheel, and suitable grinding process parameters are used, realized to turbine The high-efficiency and precision of disk tongue-and-groove is processed, and due to the processing method using grinding, i.e., in such a way that mill generation cuts, therefore will need roughing Completing with two steps of finishing for task is completed using a step.Specific procedure of processing is as follows, and grinding process is as shown in Figure 10:
Step 1, cleaning workpiece surface;Using special cleaning, such as aero-washing gasoline, by high-temperature alloy turbine disc to be ground The surface of semi-finished of blank or tongue-and-groove cleans up, to be accurately positioned in grinding process to the grinding position of grinding wheel;
Step 2, equipment assembles;Toroidal wheel 4 is mounted on lathe, turbine disk stepper motor 1 and the turbine disk 6 are passed through into biography Dynamic device 3 connects, and the powder metallurgy high-temperature alloy turbine disk 6 is fixed on turbine disk in pallet 22.Precision of equipment installation is examined It surveys, it is ensured that the turbine disk 6 controls in higher range with the rotation precision of turbine disk stepper motor 1, so that tongue-and-groove after grinding Dimensional accuracy meets processing request;The rotation connection of the turbine disk 6 and turbine disk in pallet 22 and direction converter I 13 is disconnected, so as to The turbine disk 6 is accurately controlled with stepper motor 1 by the turbine disk in grinding process.
Step 2, clamping;By the pedestal 19 of turbine plate clamp 8 by 6 clamping of the turbine disk in Grinder bench, and to clamping Position carries out accuracy detection, it is ensured that position precision is ± 0.01mm;
Step 3, it is ground;Before grinding starts, toroidal wheel 4 is moved in turbine disc mortise 7, so that the tenon tooth of emery wheel grinding-head Tooth form is aligned with the tongue-and-groove shape of the turbine disk, i.e., to knife, then 4 edge of toroidal wheelv sDirection high speed rotation, passes through numerical control program The traverse feed of the turbine disk and the grinding depth of grinding wheel are controlled, then along direction of feedv wDirection removes material, by reciprocal The grinding of turbine disc mortise wherein side (i.e. the tongue-and-groove side being ground in Figure 10) is completed in grinding;Then pass through programming The step angle of control turbine disk stepper motor 1 turns an angle the turbine disk 6, to side (i.e. Figure 10 of next tongue-and-groove In tongue-and-groove side to be ground) be ground, behind the side of complete turbine disc mortise 7 to be ground, pass through direction converter II 14,180 ° of turbine disk reversion is repeated above-mentioned grinding step, it is another to complete turbine disc mortise 7 by rolled round II 15 and II handle 16 of rolled round The grinding of outer side, by continuous reciprocal grinding until tenon groove structure meets design size, and then obtains powder metallurgy high temperature The finished product of alloy turbine disk tongue-and-groove 7.
It is ground high-temperature alloy turbine disc tongue-and-groove using toroidal wheel of the present invention, is designed guaranteeing that processing quality meets It is required that while, the R&D cycle of process tool is reduced, processing efficiency can be increased substantially, reduces turbine disc mortise processing Cost.
The present embodiment can guarantee that the quality for processing turbine disc mortise structure meets design requirement, while high temperature may be implemented The roughing and finishing of alloy turbine disk tongue-and-groove.

Claims (5)

1. a kind of turbine disc mortise form grinding process equipment, which is characterized in that including, form grinding toroidal wheel, turbine Disk stepper motor, transmission device and turbine plate clamp;Wherein transmission device connects turbine disk stepper motor with the turbine disk, The turbine disk is fixed on turbine plate clamp;Form grinding is mounted on machine tool chief axis with toroidal wheel;
The form grinding uses superabrasive wheel with toroidal wheel;The turbine disk is the powder metallurgy high-temperature alloy turbine disk;
The pedestal of turbine plate clamp is fixed on platen by fixing screwed hole, and vertical upright column is arranged on pedestal, horizontal Support rod is arranged in vertical post top portion;
It is provided opposite to direction converter in the free end of horizontal support bar, turbine disk in pallet, rolled round is installed on the converter of direction, Rolled round handle is set in rolled round, rolled round rotation is driven by rolled round handle, drives the turbine disk to carry out axis after the converter of direction To rotation;
In the fixing end of horizontal support bar, the vertical support rod of stretching, vertically installation direction converter, rolled round, handle, direction turn Parallel operation is connect by connecting cushion block with horizontal support bar, drives rolled round rotation, the band after the converter of direction by rolled round handle The dynamic turbine disk carries out radial rotating.
2. turbine disc mortise form grinding process equipment according to claim 1, it is characterised in that: the form grinding is used Toroidal wheel is soldering superabrasive wheel, ceramic bond super-hard abrasive particle grinding wheel or plating superabrasive wheel.
3. turbine disc mortise form grinding process equipment according to claim 1, it is characterised in that: form grinding annular Grinding wheel uses axially symmetric structure, including grinding wheel base body and grinding layer, grinding wheel base body include, and grinding layer includes abrasive grain and bonding agent, Wherein CBN abrasive grain or diamond abrasive grain can be used in abrasive grain, and bonding agent uses solder, ceramics or coating;Grinding layer is arranged in mill On head;Emery wheel grinding-head uses tenon tooth tooth form, and the tenon tooth tooth form is matched with the tongue-and-groove of the turbine disk, and grinding layer is arranged in bistrique tenon Tooth surface.
4. turbine disc mortise form grinding process equipment according to claim 1, it is characterised in that: knife handle and bistrique are point Body formula or integral type, form grinding are either in a horizontal or vertical grinding wheel with toroidal wheel.
5. the application method based on turbine disc mortise form grinding process equipment described in claim 1, which is characterized in that step It is as follows:
Step 1, cleaning is for workpieces processing surface;
Step 2, the assembling of turbine disc mortise form grinding process equipment;
(1), toroidal wheel is mounted on lathe;
(2), turbine disk stepper motor is connected with the turbine disk by transmission device, the turbine disk is fixed on turbine disk in pallet;
(3), precision of equipment installation is detected, it is ensured that the turbine disk is controlled with the rotation precision of turbine disk stepper motor in institute It needs in range, so that the dimensional accuracy of tongue-and-groove meets processing request after grinding;
(4), the rotation connection of the turbine disk and turbine disk in pallet and direction converter is disconnected, to pass through the turbine disk in grinding process The turbine disk is accurately controlled with stepper motor;
Step 3, clamping;By the pedestal of turbine plate clamp by turbine disk clamping in Grinder bench, and clamping position is carried out Accuracy detection, it is ensured that position precision is ± 0.01mm;
Step 4, it is ground;
(1), before grinding starts, toroidal wheel 4 is moved in turbine disc mortise 7 so that the tenon tooth tooth form of emery wheel grinding-head with The tongue-and-groove shape of the turbine disk is aligned;
(2), 4 edge of toroidal wheelv sDirection high speed rotation controls the traverse feed of the turbine disk and the grinding of grinding wheel by numerical control program Depth, then along direction of feedv wDirection removes material, and the grinding of turbine disc mortise side is completed by being back and forth ground;
(3), the turbine disk 6 is rotated by required angle by the step angle of programming Control turbine disk stepper motor 1, to next tenon The side of slot is ground, and behind the side of complete turbine disc mortise 7 to be ground, is vertically pacified by the fixing end of horizontal support bar The turbine disk is inverted 180 ° by direction converter, rolled round and the rolled round handle of dress, repeats above-mentioned grinding step, completes turbine disc mortise The grinding of other side.
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Cited By (5)

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CN110524377A (en) * 2019-09-05 2019-12-03 扬州大学 A kind of turbine tongue-and-groove ultrasonic wave added precision ECM grinding system and method
CN110722334A (en) * 2019-11-26 2020-01-24 中国航发沈阳黎明航空发动机有限责任公司 Method for broaching deformation of large axial mortise notch and eliminating tool connecting edge
CN111203782A (en) * 2020-01-16 2020-05-29 厉风燕 Processing equipment for impeller hub tongue-and-groove
CN112296814A (en) * 2020-10-10 2021-02-02 南京航空航天大学 Clamping platform for forming and grinding machining of mortise of integral turbine disc and operation process of clamping platform
CN112355811A (en) * 2020-11-03 2021-02-12 自贡硬质合金有限责任公司 Method for machining non-coherent ring groove

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CN104148992A (en) * 2014-07-16 2014-11-19 北京航空航天大学 Grinding machining method for machining impeller hub mortises
CN106424966A (en) * 2016-10-11 2017-02-22 恒锋工具股份有限公司 Grinding technology and device for wheel groove finishing broach with equal cutting angles
CN108465883A (en) * 2018-03-21 2018-08-31 西安科技大学 The process equipment and processing method of all kinds of face gears of straight sword cutter manufacture

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CN110524377A (en) * 2019-09-05 2019-12-03 扬州大学 A kind of turbine tongue-and-groove ultrasonic wave added precision ECM grinding system and method
CN110722334A (en) * 2019-11-26 2020-01-24 中国航发沈阳黎明航空发动机有限责任公司 Method for broaching deformation of large axial mortise notch and eliminating tool connecting edge
CN110722334B (en) * 2019-11-26 2021-04-27 中国航发沈阳黎明航空发动机有限责任公司 Method for broaching deformation of large axial mortise notch and eliminating tool connecting edge
CN111203782A (en) * 2020-01-16 2020-05-29 厉风燕 Processing equipment for impeller hub tongue-and-groove
CN111203782B (en) * 2020-01-16 2021-05-04 诸暨市火鸟工业设计工作室 Processing equipment for impeller hub tongue-and-groove
CN112296814A (en) * 2020-10-10 2021-02-02 南京航空航天大学 Clamping platform for forming and grinding machining of mortise of integral turbine disc and operation process of clamping platform
CN112355811A (en) * 2020-11-03 2021-02-12 自贡硬质合金有限责任公司 Method for machining non-coherent ring groove

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