CN104526503A - Integrated blade disk and blade tip curved surface numerical control grinding device and method - Google Patents
Integrated blade disk and blade tip curved surface numerical control grinding device and method Download PDFInfo
- Publication number
- CN104526503A CN104526503A CN201410777876.7A CN201410777876A CN104526503A CN 104526503 A CN104526503 A CN 104526503A CN 201410777876 A CN201410777876 A CN 201410777876A CN 104526503 A CN104526503 A CN 104526503A
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- Prior art keywords
- wheel
- blade tip
- curved surface
- blisk
- grinding
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/14—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding turbine blades, propeller blades or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
- B24B53/06—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
- B24B53/12—Dressing tools; Holders therefor
- B24B53/14—Dressing tools equipped with rotary rollers or cutters; Holders therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Abstract
The invention relates to an integrated blade disk and blade tip curved surface numerical control grinding device which comprises a numerical control end face cylindrical grinder, a cubic boron nitride grinding wheel, a grinding fixture and a grinding wheel dressing device. Without changing functions of the numerical control grinder, the cubic boron nitride grinding wheel replaces an original corundum grinding wheel, the abrasion loss of the grinding wheel is reduced, a portion of the grinding wheel participating in grinding is dressed into a circular arc through the grinding wheel dressing device, an integrated blade disk and blade tip curved surface is grinded on the numerical control grinder, and machining quality of the integrated blade disk and blade tip curved surface is effectively improved. The invention further relates to an integrated blade disk and blade tip curved surface numerical control grinding method. By the aid of a point type grinding method, the grinding method is accurate and reliable, the grinding wheel is simply and conveniently dressed after abraded, production cost is low, and the grinding method is fine in universality and applicable to machining a blade tip curved surface similar to a single integrated blade disk and blade tip curved surface and an integrated blade disk rotor component.
Description
Technical field
The invention belongs to cold processing technique field in technical field of aerospace, be specifically related to a kind of device and method of blisk blade tip curved surface numerical control grinding.
Background technology
Compressor rotor is the core component of engine, and rotor blade tip and the tool such as performance, security of casing fit clearance to engine have a significant impact.The blade tip designing requirement of blisk is curved surface, but due to existing equipment and technology level restriction, the blade tip of current domestic blisk adds and all replaces with straight section or inclined-plane man-hour, have impact on the performance of engine to a certain extent.The processing request realizing blisk blade tip curved surface is difficult to existing equipment and existing technological method for processing, for the processing of blisk blade tip curved surface can be realized, must study and use new equipment or existing equipment transformed and studies the technological method for processing that makes new advances to meet the requirement of blade tip Machining of Curved Surface.Therefore the quality of blisk blade tip processing is the key issue that must solve.
Summary of the invention
The object of the invention is: for the deficiencies in the prior art, the present invention proposes a kind of device and method of engine rotor blisk blade tip curved surface numerical control grinding, the object of the blisk blade tip Machining of Curved Surface quality that reduces costs to reach, improves crushing precision, improves.
Technical scheme of the present invention is: a kind of device of blisk blade tip curved surface numerical control grinding, comprises CNC angular approach cylindrical grinding machine, also comprise cubic boron nitride abrasive wheel, clamp and wheel dresser, wherein,
Described cubic boron nitride abrasive wheel (being called for short CBN emery wheel) is, on wheel disc matrix, high temperature sintering has certain thickness CBN coating, by wheel dresser, CBN emery wheel is participated in milled portion and be trimmed to standard circular arc during use; Described wheel dresser comprises diamond roller 5, backing plate 6, clamp nut 7 and mandrel 8, and above-mentioned diamond roller 5 is fixed by backing plate 6 and clamp nut 7 and is pressed on mandrel 8; Described clamp comprises pressing plate 1, nut 2 and mandrel 3, is fixed and clamped on mandrel 3 by blisk during use by pressing plate 1 and nut 2.
Described cubic boron nitride abrasive wheel wheel disc matrix is aluminum alloy materials.
Described mandrel 8 two ends are processed with center hole, and machine tool headstock rotates Shi Dai moving mandrel 8, thus drives whole wheel dresser along the top synchronous axial system of lathe.
Described diamond roller 5 is on wheel disc, electroplated one deck diamond particles, and its correcting mechanism is that the relative motion by producing between diamond roller 5 and the rotary motion of CBN emery wheel realizes emery wheel dressing.
Described mandrel 3 two ends are processed with center hole, and machine tool headstock rotates Shi Dai moving mandrel 3, thus drive clamping to have the clamp of blisk along the top synchronous axial system of lathe.
Adopt the device of blisk blade tip curved surface numerical control grinding to carry out the method for processing, comprise the following steps:
Step 1: taken off by original corundum wheel, the grinding carriage that changed the outfit to by CBN emery wheel is fixed and clamped.On wheel dresser is top to lathe to top clamping.
Step 2: start numerically control grinder, whole wheel dresser is driven to rotate after machine tool headstock rotates, CBN emery wheel is first moved to the position with diamond roller in wheel dresser 5 centering, then by CBN emery wheel is radial slowly mobile along diamond roller 5, CBN emery wheel is participated in milled portion and is trimmed to circular arc.
Step 3: blisk is installed on mandrel 3, and blisk is fixed by pressing plate 1 and nut 2, is pressed on mandrel 3.Take off wheel dresser, clamping is had the clamp of blisk to top clamping top to lathe on.
Step 4: start numerically control grinder, tool setting setting is carried out to CBN emery wheel and is input in digital control system.
Step 5: grinding integrated impeller blade blade tip, until reach the qualified size of blade tip.
Step 6: taken off from lathe lastblock together with clamp by blisk, and pulled down from clamp by blisk, completes the grinding of integrated impeller blade blade tip curved surface.
The beneficial effect that the present invention produces:
A kind of blisk blade tip curvature generator of the present invention and method, the present invention is under the prerequisite not changing numerically control grinder self function, original corundum wheel is replaced with cubic boron nitride abrasive wheel, reduce the wear extent of emery wheel, and by wheel dresser, cubic boron nitride abrasive wheel is participated in milled portion and be trimmed to standard circular arc, achieve the function of grinding blisk blade tip curved surface on numerically control grinder, effectively improve the crudy of blisk blade tip curved surface.The present invention adopts point type method for grinding, and method for grinding is precisely reliable, and the finishing after abrasion of grinding wheel is simple and convenient, and production cost is low, and versatility is good, is applicable to the processing of the blade tip curved surface of similar single blisk blade tip curved surface and blisk rotor assembly.
Symbol figure explanation
Fig. 1 is an embodiment of the present invention engine rotor Blisk figure
Fig. 2 is an embodiment of the present invention wheel dresser structure chart
Fig. 3 is an embodiment of the present invention engine rotor blisk clamp structure chart
Detailed description of the invention
Below in conjunction with Figure of description, the present invention is described in further detail, refers to Fig. 1 ~ 3.
Be illustrated in figure 1 embodiment of the present invention h type engine h compressor rotor Blisk figure, its blade tip is curved surface.For meeting the processing request of blade tip curved surface, through analyzing this structure and designing technique condition, study, the embodiment of the present invention has selected grinding method to process blade tip curved surface.
A device for blisk blade tip curved surface numerical control grinding, comprises CNC angular approach cylindrical grinding machine, also comprises cubic boron nitride abrasive wheel, clamp and wheel dresser, wherein,
Described cubic boron nitride abrasive wheel (being called for short CBN emery wheel) is, on wheel disc matrix, high temperature sintering has certain thickness CBN coating, by wheel dresser, CBN emery wheel is participated in milled portion and be trimmed to standard circular arc during use.Cubic boron nitride abrasive wheel wheel disc matrix is aluminum alloy materials.
As shown in Figure 2, described wheel dresser comprises diamond roller 5, backing plate 6, clamp nut 7 and mandrel 8, and above-mentioned diamond roller 5 is fixed by backing plate 6 and clamp nut 7 and is pressed on mandrel 8.Diamond roller 5 is on wheel disc, electroplated one deck diamond particles, and its correcting mechanism is that the relative motion by producing between diamond roller 5 and the rotary motion of CBN emery wheel realizes emery wheel dressing.Mandrel 8 two ends are processed with center hole, and machine tool headstock rotates Shi Dai moving mandrel 8, thus drives whole wheel dresser along the top synchronous axial system of lathe.
As shown in Figure 3, described clamp comprises pressing plate 1, nut 2 and mandrel 3, is fixed and clamped on mandrel 3 by blisk during use by pressing plate 1 and nut 2.Mandrel 3 two ends are processed with center hole, and machine tool headstock rotates Shi Dai moving mandrel 3, thus drive clamping to have the clamp of blisk along the top synchronous axial system of lathe.
The present invention adopts point type method for grinding to carry out grinding, and during grinding, contact surface is little, and resistance to cutting is little, is suitable for the part of grinding integrated impeller blade poor rigidity.Adopt point type abrasive grinding wheel quick abrasion, therefore we have selected the CBN emery wheel of resistance to grinding to replace common corundum wheel, and abrasion of grinding wheel amount is very little.Because clamp and trimming device are all by pushing up clamping on lathe is top, therefore again repairing very convenient after abrasion of grinding wheel, can intert with part grinding and carry out, thus ensureing the crudy of part.
CBN emery wheel is trimmed to standard circular arc, and therefore emery wheel tool setting is very convenient and accurately and reliably.
The embodiment of the present invention adopts special NC numerical control module to complete the processing of part profile, and part programming simply not easily makes mistakes.
Adopt the device of blisk blade tip curved surface numerical control grinding to carry out the method for processing, comprise the following steps:
Step 1: taken off by original corundum wheel, the grinding carriage that changed the outfit to by CBN emery wheel is fixed and clamped.On wheel dresser is top to lathe to top clamping.
Step 2: start numerically control grinder, whole wheel dresser is driven to rotate after machine tool headstock rotates, CBN emery wheel is first moved to the position with diamond roller in wheel dresser 5 centering, then by CBN emery wheel is radial slowly mobile along diamond roller 5, CBN emery wheel is participated in milled portion and is trimmed to circular arc.
Step 3: blisk is installed on mandrel 3, and blisk is fixed by pressing plate 1 and nut 2, is pressed on mandrel 3.Take off wheel dresser, clamping is had the clamp of blisk to top clamping top to lathe on.
Step 4: start numerically control grinder, tool setting setting is carried out to CBN emery wheel and is input in digital control system.
Step 5: grinding integrated impeller blade blade tip, until reach the qualified size of blade tip.
Step 6: taken off from lathe lastblock together with clamp by blisk, and pulled down from clamp by blisk, completes the grinding of integrated impeller blade blade tip curved surface.
The present invention successfully realizes the numerical control grinding of blisk blade tip curved surface, and use and the development prospect of this technology are wide, and to future, the grinding of domestic all kinds of engine complex profile will have meaning that is initiative and directiveness.
Claims (6)
1. the device of a blisk blade tip curved surface numerical control grinding, comprise CNC angular approach cylindrical grinding machine, it is characterized in that: also comprise cubic boron nitride abrasive wheel, clamp and wheel dresser, wherein, described cubic boron nitride (CBN) emery wheel is that high temperature sintering has certain thickness CBN coating on wheel disc matrix, by wheel dresser, CBN emery wheel is participated in milled portion and be trimmed to standard circular arc during use; Described wheel dresser comprises diamond roller [5], backing plate [6], clamp nut [7] and mandrel [8], and above-mentioned diamond roller [5] is fixed by backing plate [6] and clamp nut [7] and is pressed on mandrel [8]; Described clamp comprises pressing plate [1], nut [2] and mandrel [3], is fixed and clamped on mandrel [3] by blisk during use by pressing plate [1] and nut [2].
2. the device of blisk blade tip curved surface numerical control grinding according to claim 1, is characterized in that: described cubic boron nitride abrasive wheel wheel disc matrix is aluminum alloy materials.
3. the device of blisk blade tip curved surface numerical control grinding according to claim 1, it is characterized in that: described mandrel [8] two ends are processed with center hole, machine tool headstock rotates Shi Dai moving mandrel [8], thus drives whole wheel dresser along the top synchronous axial system of lathe.
4. the device of blisk blade tip curved surface numerical control grinding according to claim 1, it is characterized in that: described diamond roller [5] is on wheel disc, electroplated one deck diamond particles, its correcting mechanism is that the relative motion by producing between diamond roller [5] and the rotary motion of CBN emery wheel realizes emery wheel dressing.
5. the device of blisk blade tip curved surface numerical control grinding according to claim 1, it is characterized in that: described mandrel [3] two ends are processed with center hole, machine tool headstock rotates Shi Dai moving mandrel [3], thus drives clamping to have the clamp of blisk along the top synchronous axial system of lathe.
6. use the device of blisk blade tip curved surface numerical control grinding as claimed in claim 1 to carry out the method for processing, it is characterized in that: comprise the following steps:
Step 1: taken off by original corundum wheel, the grinding carriage that changed the outfit to by CBN emery wheel is fixed and clamped, on wheel dresser is top to lathe to top clamping;
Step 2: start numerically control grinder, whole wheel dresser is driven to rotate after machine tool headstock rotates, CBN emery wheel is first moved to the position with diamond roller in wheel dresser [5] centering, then pass through by CBN emery wheel along the slowly movement of diamond roller [5] radial direction, CBN emery wheel is participated in milled portion and is trimmed to circular arc;
Step 3: blisk is installed on mandrel [3], and by pressing plate [1] and nut [2], blisk fixed, be pressed on mandrel [3], take off wheel dresser, clamping is had the clamp of blisk to top clamping top to lathe on;
Step 4: start numerically control grinder, tool setting setting is carried out to CBN emery wheel and is input in digital control system;
Step 5: grinding integrated impeller blade blade tip, until reach the qualified size of blade tip;
Step 6: taken off from lathe lastblock together with clamp by blisk, and pulled down from clamp by blisk, completes the grinding of integrated impeller blade blade tip curved surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410777876.7A CN104526503A (en) | 2014-12-15 | 2014-12-15 | Integrated blade disk and blade tip curved surface numerical control grinding device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410777876.7A CN104526503A (en) | 2014-12-15 | 2014-12-15 | Integrated blade disk and blade tip curved surface numerical control grinding device and method |
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| CN104526503A true CN104526503A (en) | 2015-04-22 |
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| CN201410777876.7A Pending CN104526503A (en) | 2014-12-15 | 2014-12-15 | Integrated blade disk and blade tip curved surface numerical control grinding device and method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104924158A (en) * | 2015-05-14 | 2015-09-23 | 陕西理工学院 | Segmented grinding method for large rotor of screw compressor |
| CN105458871A (en) * | 2015-11-13 | 2016-04-06 | 西安航空动力股份有限公司 | Engine rotor integral blade disk and blade tip processing method |
| CN110281086A (en) * | 2019-07-29 | 2019-09-27 | 哈尔滨理工大学 | A kind of ceramic material revolving parts grinding technique of complex curve fitting |
| CN112247742A (en) * | 2020-10-14 | 2021-01-22 | 沈阳透平机械股份有限公司 | Method, device and equipment for machining blade tops of movable blades of axial flow compressor |
| CN112372379A (en) * | 2020-11-12 | 2021-02-19 | 中国航发南方工业有限公司 | Grinding method for complex curved surface type blade tip for aero-engine |
| CN113468788A (en) * | 2021-07-20 | 2021-10-01 | 中国科学院工程热物理研究所 | Deformation coordination design method for engine blisk |
| CN113798878A (en) * | 2020-06-15 | 2021-12-17 | 中国航发商用航空发动机有限责任公司 | Broaching clamp for machining mortise of aero-engine disc |
| CN114833382A (en) * | 2022-04-14 | 2022-08-02 | 中国航发贵州黎阳航空动力有限公司 | Method for processing blade tip length of fan blade |
| CN115284130A (en) * | 2022-07-04 | 2022-11-04 | 青岛中科国晟动力科技有限公司 | Rotor blade tip grinding method |
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| CN203485033U (en) * | 2013-09-18 | 2014-03-19 | 沈阳黎明航空发动机(集团)有限责任公司 | Engine rotor balancing and blade tip grinding integrated tool |
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Patent Citations (5)
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| EP1033202A2 (en) * | 1999-02-22 | 2000-09-06 | Hitachi Seiki Co., Ltd. | Grinding machine with continuous dressing |
| CN102019571A (en) * | 2010-10-04 | 2011-04-20 | 吉林大学 | Adaptive machine tool for grinding and polishing complex surfaces |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104924158A (en) * | 2015-05-14 | 2015-09-23 | 陕西理工学院 | Segmented grinding method for large rotor of screw compressor |
| CN104924158B (en) * | 2015-05-14 | 2017-05-10 | 陕西理工学院 | Segmented grinding method for large rotor of screw compressor |
| CN105458871A (en) * | 2015-11-13 | 2016-04-06 | 西安航空动力股份有限公司 | Engine rotor integral blade disk and blade tip processing method |
| CN110281086A (en) * | 2019-07-29 | 2019-09-27 | 哈尔滨理工大学 | A kind of ceramic material revolving parts grinding technique of complex curve fitting |
| CN113798878A (en) * | 2020-06-15 | 2021-12-17 | 中国航发商用航空发动机有限责任公司 | Broaching clamp for machining mortise of aero-engine disc |
| CN112247742A (en) * | 2020-10-14 | 2021-01-22 | 沈阳透平机械股份有限公司 | Method, device and equipment for machining blade tops of movable blades of axial flow compressor |
| CN112372379A (en) * | 2020-11-12 | 2021-02-19 | 中国航发南方工业有限公司 | Grinding method for complex curved surface type blade tip for aero-engine |
| CN112372379B (en) * | 2020-11-12 | 2022-04-01 | 中国航发南方工业有限公司 | Grinding method for complex curved surface type blade tip for aero-engine |
| CN113468788A (en) * | 2021-07-20 | 2021-10-01 | 中国科学院工程热物理研究所 | Deformation coordination design method for engine blisk |
| CN114833382A (en) * | 2022-04-14 | 2022-08-02 | 中国航发贵州黎阳航空动力有限公司 | Method for processing blade tip length of fan blade |
| CN114833382B (en) * | 2022-04-14 | 2023-11-21 | 中国航发贵州黎阳航空动力有限公司 | Method for processing length of blade tip of fan blade |
| CN115284130A (en) * | 2022-07-04 | 2022-11-04 | 青岛中科国晟动力科技有限公司 | Rotor blade tip grinding method |
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