CN112207524B - Small blade processing technology - Google Patents
Small blade processing technology Download PDFInfo
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- CN112207524B CN112207524B CN202010870543.4A CN202010870543A CN112207524B CN 112207524 B CN112207524 B CN 112207524B CN 202010870543 A CN202010870543 A CN 202010870543A CN 112207524 B CN112207524 B CN 112207524B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/02—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass turbine or like blades from one piece
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Abstract
The invention discloses a small blade processing technology, which comprises (1) material pretreatment; (2) finishing the bottom of the tenon tooth and the top flash of the blade by a sawing machine; (3) milling peripheral fins by using end milling equipment; (4) milling the tenon tooth and the step facing surface by using end milling equipment; (5) processing the horizontal plane of the tenon tooth into a plane through horizontal milling equipment; (6) processing the tenon tooth by linear cutting equipment; (7) drilling a central hole on the bottom plane of the tenon tooth through horizontal milling; (8) roughly milling the blade profile by a numerical control milling machine; (9) fine processing to obtain small blades; (10) and (4) warehousing pretreatment and the like. The small blade processing technology provided by the invention effectively avoids the problem that the movable blade is easy to shake in the traditional processing process to cause the quality defect of the product, ensures the accuracy in the processing process, improves the product quality, greatly reduces the processing procedures, and improves the processing efficiency and the cutter loss, thereby reducing the production cost of enterprises and well promoting the development of the enterprises and industries.
Description
Technical Field
The invention relates to the field of blade processing equipment, in particular to a small blade processing technology.
Background
HG90 series 4-7 level movable vane comes the material and adds belongs to the die forging, and the die forging characteristics are that the surplus is little, and whole appearance has been controlled through the forging die, and very big appearance profile change is difficult, can only process according to the shape of die forging. The 4-7 stage movable blades have the problems of more difficult processing reference, more difficult positioning, large jitter in the processing process and the like compared with the square stock blank of the 1-3 stage movable blades; if a similar processing technology of 1-3 grades is adopted, the problems of long processing time, low production efficiency, high processing cost and the like exist.
Adopt traditional processing technology, will be to process bottom plane and top plane earlier, adopt three apical modes (two tops in the bottom and a top), adopt this kind of processing technology's a bit to lie in: the blade profile and the tenon can be simultaneously machined by one-time clamping, and the superposition errors caused by fixture errors, random errors and the like due to secondary clamping are reduced. The processing cost is saved, the resource loss is reduced, and the processing time of the workpiece is shortened. However, the processing technology has great disadvantages, and the most important is that: the center lines of the three top pointed holes are required to be in the same section, and the connecting line midpoint of the center lines of the two bottom surface top pointed holes is coincided with the axis of the top surface top pointed hole. The three-center machining can be completed only when the two conditions are met, otherwise, the part can generate the condition of center deviation in the machining process, the quality precision of the workpiece is low, machining allowance on two sides is inconsistent due to eccentric machining, and a cutter is easy to damage. By adopting the process route of firstly processing the tenon and then processing the blade profile, the processing cost can be greatly improved, the processing time is prolonged, and meanwhile, the accumulated error can be generated after the secondary clamping and positioning, so that the size precision of the workpiece is influenced.
Therefore, in order to better complete the processing of the movable blades and improve the efficiency and accuracy of the processing of the movable blades, a set of brand new processing flow needs to be designed.
Disclosure of Invention
The invention aims to overcome the defects, provides the small blade processing technology, effectively solves the problem that the movable blade is easy to shake in the traditional processing process to cause the quality defect of a product, ensures the accuracy in the processing process, improves the quality of the product, greatly reduces the processing procedures, and improves the processing efficiency and the cutter loss, thereby reducing the production cost of enterprises and well promoting the development of the enterprises and industries.
The purpose of the invention is realized by the following technical scheme:
a small blade processing technology comprises the following processing steps:
(1) pretreating materials;
(2) finishing the bottom of the tenon tooth and the top flash of the blade by a sawing machine;
(3) milling peripheral burrs through end milling equipment;
(4) milling the tenon tooth and the step facing surface by using end milling equipment;
(5) processing the horizontal plane of the tenon tooth into a plane through horizontal milling equipment;
(6) processing the tenon tooth by linear cutting equipment;
(7) drilling a central hole on the bottom plane of the tenon tooth through horizontal milling;
(8) roughly milling the blade profile by a numerical control milling machine;
(9) fine processing to obtain small blades;
(10) Pre-treating in a warehouse;
(11) and (3) carrying out magnetic flaw detection and frequency measurement on a plurality of small blades subjected to warehousing pretreatment together, registering and storing if the small blades are unqualified, and carrying out oil sealing and warehousing after shot blasting if the small blades are qualified.
The material pretreatment in the step (1) comprises four steps of drawing a small blade machining size diagram, producing a die forging, carrying out heat treatment on the die forging and registering the number of the die forging.
The step (9) is composed of the following steps:
(91) fine milling tenon teeth and leaf shapes through a machining center;
(92) performing finish milling on the bottom plane of the tenon tooth through horizontal milling;
(93) grinding the bottom plane of the tenon tooth by using flat grinding equipment;
(94) polishing the product by a polishing machine;
(95) cutting the total length of the leaf top by linear cutting equipment;
(96) polishing the total length of the blade top by a polishing machine;
(97) drilling bottom surface holes of the tenon teeth through horizontal milling;
(98) grinding a basin plane, a back plane, a basin-direction angle surface and a back-direction angle surface of the tenon through flat grinding;
(99) and (5) manually performing clamp repair.
Step (10) comprises five steps of product marking, size parameter detection, weighing, product registration and product temporary storage; the labeling is done by a marking machine.
The content of the product registration comprises the die forging number, the product label, the size parameter, the processing time, the processing personnel information and the pre-storage processing personnel information.
The magnetic flaw detection in the step (11) is completed by a magnetic sensitive probe method or a magnetic recording method.
And (5) completing the frequency measurement in the step (11) by adopting a self-oscillation method.
And (4) the shot blasting in the step (11) is completed through a shot blasting machine.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the invention effectively avoids the problem that the movable blade is easy to shake in the traditional processing process to cause the quality defect of the product, ensures the accuracy in the processing process, improves the quality of the product, greatly reduces the processing procedures, and improves the processing efficiency and the cutter loss, thereby reducing the production cost of enterprises and well promoting the development of enterprises and industries.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
Examples
A small blade processing technology comprises the following processing steps:
(1) pretreating materials;
the material pretreatment comprises four steps of drawing a small blade machining size diagram, producing a die forging, carrying out heat treatment on the die forging and registering a die forging number.
(2) Finishing the bottom of the tenon tooth and the top flash of the blade by a sawing machine;
(3) milling peripheral fins by using end milling equipment;
(4) Milling tenon teeth and step facing surfaces through end milling equipment;
(5) processing the tenon tooth horizontal plane into a plane through horizontal milling equipment;
(6) processing the tenon tooth by linear cutting equipment;
(7) drilling a central hole in the bottom plane of the tenon tooth through horizontal milling;
(8) roughly milling the blade profile by a numerical control milling machine;
(9) fine processing to obtain a small blade;
the step (9) is composed of the following steps:
(91) fine milling tenon teeth and leaf shapes through a machining center;
(92) performing finish milling on the bottom plane of the tenon tooth through horizontal milling;
(93) grinding the bottom plane of the tenon tooth by using flat grinding equipment;
(94) polishing the product by a polishing machine;
(95) cutting the total length of the leaf top by linear cutting equipment;
(96) polishing the total length of the blade top by a polishing machine;
(97) drilling bottom surface holes of the tenon teeth through horizontal milling;
(98) grinding a basin plane, a back plane, a basin-direction angle surface and a back-direction angle surface of the tenon through flat grinding;
(99) and (5) manually performing clamp repair.
(10) Pre-treating in a warehouse;
the method comprises five steps of product marking, size parameter detection, weighing, product registration and product temporary storage; the labeling is done by a marking machine.
The content of the product registration comprises the die forging number, the product label, the size parameter, the processing time, the processing personnel information and the pre-storage processing personnel information.
(11) And (3) carrying out magnetic flaw detection and frequency measurement on a plurality of small blades subjected to warehousing pretreatment, registering and storing if the small blades are not qualified, and carrying out oil sealing after shot blasting and warehousing if the small blades are qualified.
The magnetic flaw detection is completed by a magnetic sensitive probe method or a magnetic recording method. The frequency measurement is completed by adopting a natural vibration method. The shot blasting is completed by a shot blasting machine.
As described above, the present invention can be preferably implemented.
Claims (7)
1. A small blade processing technology is characterized by comprising the following processing steps:
(1) pretreating materials;
(2) finishing the bottom of the tenon tooth and the top flash of the blade by a sawing machine;
(3) milling peripheral burrs through end milling equipment;
(4) milling the tenon tooth and the step facing surface by using end milling equipment;
(5) processing the horizontal plane of the tenon tooth into a plane through horizontal milling equipment;
(6) processing the tenon tooth by linear cutting equipment;
(7) drilling a central hole on the bottom plane of the tenon tooth through horizontal milling;
(8) roughly milling the blade profile by a numerical control milling machine;
(9) fine processing to obtain small blades;
the step (9) is composed of the following steps:
(91) fine milling tenon teeth and leaf shapes through a machining center;
(92) performing finish milling on the bottom plane of the tenon tooth through horizontal milling;
(93) grinding the bottom plane of the tenon tooth by using flat grinding equipment;
(94) polishing the product by a polishing machine;
(95) Completing the cutting of the total length of the leaf top by linear cutting equipment;
(96) polishing the total length of the leaf top by a polishing machine;
(97) drilling bottom holes of the tenon teeth through horizontal milling;
(98) grinding a basin plane, a back plane, a basin-direction angle surface and a back-direction angle surface of the tenon through flat grinding;
(99) manually carrying out the pliers repair;
(10) pre-treating in a warehouse;
(11) and (3) carrying out magnetic flaw detection and frequency measurement on a plurality of small blades subjected to warehousing pretreatment together, registering and storing if the small blades are unqualified, and carrying out oil sealing and warehousing after shot blasting if the small blades are qualified.
2. The process of claim 1, wherein the pretreatment of the material in step (1) comprises four steps of drawing a small blade machining dimension map, producing a die forging, heat treating the die forging, and registering a die forging number.
3. The small blade processing technology according to claim 2, wherein the step (10) is composed of five steps of product marking, size parameter detection, weighing, product registration and product temporary storage; the labeling is done by a marking machine.
4. The process of claim 3, wherein the product registration comprises die forging number, product number, dimension parameter, processing time, processing personnel information, and pre-warehousing processing personnel information.
5. The process of claim 4, wherein the magnetic flaw detection in step (11) is performed by a magnetic probe method or a magnetic recording method.
6. The process of claim 5, wherein the frequency measurement in step (11) is performed by a self-oscillation method.
7. The process of claim 6, wherein the shot peening in step (11) is performed by a shot peening machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010870543.4A CN112207524B (en) | 2020-08-26 | 2020-08-26 | Small blade processing technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010870543.4A CN112207524B (en) | 2020-08-26 | 2020-08-26 | Small blade processing technology |
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| CN112207524A CN112207524A (en) | 2021-01-12 |
| CN112207524B true CN112207524B (en) | 2022-07-19 |
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| CN202010870543.4A Active CN112207524B (en) | 2020-08-26 | 2020-08-26 | Small blade processing technology |
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| CN113618341A (en) * | 2021-08-23 | 2021-11-09 | 成都市新美加机械设备制造有限公司 | Support plate machining process |
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| US8844132B2 (en) * | 2011-07-22 | 2014-09-30 | Pratt & Whitney Canada Corp. | Method of machining using an automatic tool path generator adapted to individual blade surfaces on an integrally bladed rotor |
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| DE102008019332A1 (en) * | 2008-04-16 | 2009-10-22 | Rolls-Royce Deutschland Ltd & Co Kg | Method for milling blisks |
| CN202922262U (en) * | 2012-09-24 | 2013-05-08 | 西北工业大学 | Clamp special for thin-wall blade area symmetric precision cutting machining method |
| CN104084773A (en) * | 2014-08-04 | 2014-10-08 | 南京赛达机械制造有限公司 | Machining process of axial-flow type turbine blade |
| CN105127696A (en) * | 2015-09-30 | 2015-12-09 | 四川绵竹鑫坤机械制造有限责任公司 | Regulating-stage blade processing method of steam turbine |
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| CN106001338A (en) * | 2016-06-07 | 2016-10-12 | 中国南方航空工业(集团)有限公司 | High-temperature alloy no-allowance blade rolling method |
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| CN112207524A (en) | 2021-01-12 |
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