CN110732691A - Method for machining vibration-proof cutter for thin-wall large-disc parts - Google Patents
Method for machining vibration-proof cutter for thin-wall large-disc parts Download PDFInfo
- Publication number
- CN110732691A CN110732691A CN201911130251.0A CN201911130251A CN110732691A CN 110732691 A CN110732691 A CN 110732691A CN 201911130251 A CN201911130251 A CN 201911130251A CN 110732691 A CN110732691 A CN 110732691A
- Authority
- CN
- China
- Prior art keywords
- thin
- machining
- cutter
- wall large
- vibration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B25/00—Accessories or auxiliary equipment for turning-machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The invention discloses a method for processing a vibration-proof cutter for thin-wall large-disc parts, wherein a supporting body is arranged on the thin-wall large-disc part and positioned on the back side of a cutter processing molded surface, the end of the supporting body is tightly attached to the back of the cutter processing molded surface, and the end is tightly attached to the end surface of a clamp for clamping the thin-wall large-disc part.
Description
Technical Field
The invention belongs to the technical field of manufacturing of aero-engines, and particularly relates to a knife vibration prevention method for machining thin-wall disc parts.
Background
In the manufacturing process of an aircraft engine, the machining of a high-pressure compressor disk part is involved, and as shown in figure 1, the structural size of the part is large, and the excircle size of the part is
The size of the inner hole is
The thinnest part of the wall thickness of the part is only 2.5mm, and other structural dimensions of the part are shown in figure 1.
When the web plate is finely turned on the part, the minimum wall thickness of the web plate reaches 2.5mm, and the part is close to the outer circle
The support is pressed and positioned, at the moment, the turning web is a suspended part, and the phenomena of corrugation and cutter gnawing are very easy to occur during processing, the processing efficiency is improved, meanwhile, the problem that the surface quality of a processing part is poor is inevitable, and the processing surface quality of the part is which troubles the difficulty of part processing.
In order to solve the problem of tool chatter, in the currently adopted method is low-speed cutting, but the new problems of long production time and increased processing cost are caused.
Disclosure of Invention
The invention aims to provide a method for machining an anti-vibration cutter for thin-wall large-disc parts, which solves the cutter vibration phenomenon of the parts in the machining process, improves the machining efficiency and ensures that the surface quality of the parts meets the requirements.
The current thinking for solving the knife vibration phenomenon starts with machining the knife, and avoids the knife vibration phenomenon by improving the structure or material characteristics or machining parameters (reducing the machining speed).
The invention solves the problem of cutter vibration from another angles, namely starting from processing parts under the condition of not changing a cutter.
The technical scheme of the invention is as follows:
a method for machining vibration-proof cutters on thin-wall large-disc parts is characterized in that supporting bodies are arranged on the thin-wall large-disc parts and located on the side of the back of a cutter machining molded surface, the end of each supporting body is tightly attached to the back of the cutter machining molded surface, the end of each supporting body is tightly attached to the end face of a clamp used for clamping the thin-wall large-disc parts, and the side of each supporting body provides support for the to-be-machined molded surface, so that the machining thickness of the molded surface is increased objectively and effectively and the machining rigidity is improved particularly for the molded surface at the thin wall, and in addition, the side of each supporting body, the deformation characteristic of the to-be-machined molded surface can be appropriately changed by utilizing.
And , the support body is in a compressed state, the compression force is from the end face of the clamp and the back face of the tool machining profile, and the support body in the compressed state can cling to the back face of the profile to be machined to provide enough supporting force.
, the supporting bodies are whole bodies, the outer shape of each supporting body is equal to the inner shape of a cavity body formed between the cutter processing molded surface on the thin-wall large disc part and the clamping end surface of the clamp, when the shape of the cavity body is simpler, for example, the cavity body is only composed of a simple large plane and a simple small cambered surface, whole supporting bodies can be processed, and the surface of each supporting body can be well attached to the back surface of the molded surface to be processed.
, the support body comprises a plurality of single bodies, the volume of each single body is smaller than that of a cavity formed between the cutter processing profile on the thin-wall large-disc part and the clamping end face of the clamp, when the shape of the cavity is complex, such as a complex curved surface or a small plane, the integral support body cannot be well attached to the back of the processing profile, and only a relatively complete attaching surface can be spliced through the plurality of small curved surfaces and the small planes.
, the single bodies are spheres, cuboids, cubes or cylinders, the shapes include common space curved surfaces and planes, the support bodies with different outlines can be formed by combination (for example, the single bodies are combined through bonding, and the important support profiles are spliced by the single bodies closest to the outlines of the support bodies), and the single bodies can be filled with cavities after being extruded and deformed.
, the elastic modulus of the support is smaller than that of the thin-wall large-disc part, when the rigidity of the support is larger than that of the part, the thickness of the support is larger, the rigidity is larger, and the blade vibration phenomenon is easy to occur, so that only the material with the elastic modulus smaller than that of the part can be selected as the support.
, the support is rigid foam which has the characteristics of no flexibility, large compression hardness, deformation when the stress reaches constant value, and incapability of recovering the original shape after stress relief, and the characteristics are very suitable for being used as the support.
, the supporting body is polyethylene foam (also called pearl cotton).
Compared with the prior art, the invention opens another way, starts from the clamping support of the part, has low processing cost of the whole support body, can well solve the problem of cutter vibration in the processing, does not need to reduce the processing rotating speed, does not need to change the structure or the material of the cutter, not only can improve the processing efficiency, but also can ensure that the surface quality of the part processing meets the requirement.
Drawings
FIG. 1 is a drawing of a part to be machined.
Detailed Description
The present invention will be described in further with reference to the drawings and specific examples, but it should not be understood that the scope of the subject matter of the present invention is limited to the examples described below, and various modifications, substitutions and alterations based on the common technical knowledge and practice in the field are included in the scope of the present invention without departing from the technical idea of the present invention.
As shown in figure 1, because the diameter span of a thin-wall part is large, the thinnest position of a web is about 2.5MM, the rigidity of the position is poor because the web part of the part is in a suspended state in the finish turning process of the part, the surface quality of the web plate processed by the part is not high in the process of processing the part, and simple and applicable vibration reduction methods are needed to be found to overcome the difficulty of surface vibration of a turning tool.
The invention designs damping methods using rigid foam pad suspended web plates, wherein in the fine machining process, the whole single surface has 0.5mm of allowance, the web plates are suspended in the machining process, special-sized annular foam is designed according to the shape and size of the web plates, and the suspended web plates are integrally padded with rigid annular foam.
According to the structural characteristics and the actual conditions of the part, the contour size of the part (the main body is an variable-section annular body comprising two annular surfaces with different thicknesses) is combined, firstly, annular rigid foam which accords with the inner contour of a cavity body between a profile to be processed of the part and a clamping plane of a clamp is manufactured, then, the rigid foam is placed on the end face of the clamp (the leftmost plane in fig. 1 is a clamping support end face), then, the part is installed on the clamp of a machine tool to be positioned, supported and pressed, and the foam padded in the processing plays a role of floating support, so that the deformation in the processing caused by the suspension.
The invention solves the vibration entrustment of the cutter in cutting and improves the surface processing quality of products. The method for preventing the web plate of the part from vibrating is very convenient in measure, high in speed and good in effect, and the method for preventing the web plate from vibrating achieves an obvious effect in actual production, improves the cutting efficiency of part processing and verifies the effectiveness of the part.
Claims (8)
1. The method for machining the anti-vibration cutter for the thin-wall large-disc part is characterized in that a supporting body is arranged on the thin-wall large-disc part and located on the side of the back face of a machining molded surface of the cutter, the end of the supporting body is tightly attached to the back face of the machining molded surface of the cutter, and the end of the supporting body is tightly attached to the end face of a clamp for clamping the thin-wall large-disc part.
2. The method for machining the vibration-proof cutter for the thin-wall large-disc parts as claimed in claim 1, wherein the method comprises the following steps: the support body is in a compressed state, and the compression acting force is from the end face of the clamp and the back face of the tool machining molded surface.
3. The method for machining the vibration-proof cutter for the thin-wall large-disc parts as claimed in claim 1, wherein the supporting bodies are integral bodies, and the outer contour of each supporting body corresponds to the inner contour of a cavity body formed between the machining profile of the cutter on the thin-wall large-disc parts and the clamping end face of the clamp.
4. The method for machining the vibration-proof cutter for the thin-wall large-disc parts as claimed in claim 1, wherein the method comprises the following steps: the supporting body comprises a plurality of single bodies, and the volume of each single body is smaller than that of a cavity body formed between the machining molded surface of the cutter on the thin-wall large-disc part and the clamping end surface of the clamp.
5. The method for machining the vibration-proof cutter for the thin-wall large-disc parts as claimed in claim 4, wherein the method comprises the following steps: the monomer is a sphere, a cuboid, a cube or a cylinder.
6. The method for machining the vibration-proof cutter for the thin-wall large-disc parts as claimed in claim 1, wherein the method comprises the following steps: the elastic modulus of the support body is smaller than that of the material of the thin-wall large-disc part.
7. The method for machining the vibration-proof cutter for the thin-wall large-disc parts as claimed in claim 1, wherein the method comprises the following steps: the support is rigid foam.
8. The method for machining the vibration-proof cutter for the thin-wall large-disc parts as claimed in claim 1, wherein the method comprises the following steps: the support body is polyethylene foam cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911130251.0A CN110732691A (en) | 2019-11-18 | 2019-11-18 | Method for machining vibration-proof cutter for thin-wall large-disc parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911130251.0A CN110732691A (en) | 2019-11-18 | 2019-11-18 | Method for machining vibration-proof cutter for thin-wall large-disc parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110732691A true CN110732691A (en) | 2020-01-31 |
Family
ID=69273197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911130251.0A Pending CN110732691A (en) | 2019-11-18 | 2019-11-18 | Method for machining vibration-proof cutter for thin-wall large-disc parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110732691A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100164187A1 (en) * | 2007-03-06 | 2010-07-01 | The University Of Sheffield | Adaptive design of fixture for thin-walled shell/cylindrical components |
| CN103273332A (en) * | 2012-12-20 | 2013-09-04 | 贵州航天乌江机电设备有限责任公司 | Method and device preventing machined thin wall annular part from deforming |
| CN205996581U (en) * | 2016-06-23 | 2017-03-08 | 中国人民解放军第五七一九工厂 | Engine compressor disk anti-deformation machining tool fixture |
| CN106735309A (en) * | 2016-11-29 | 2017-05-31 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of long cantilever web pattern part by numerical control machining deformation control method |
| CN106736693A (en) * | 2016-12-23 | 2017-05-31 | 贵州黎阳航空动力有限公司 | A kind of distortion-free processing method of thin-walled disk-like accessory |
| CN207840720U (en) * | 2018-02-13 | 2018-09-11 | 重庆天骄航空动力有限公司 | A kind of auxiliary mould for Thin-Wall Outer Casing processing |
| CN207840764U (en) * | 2018-02-13 | 2018-09-11 | 重庆天骄航空动力有限公司 | A kind of casing processing tool |
| CN109128904A (en) * | 2018-09-13 | 2019-01-04 | 杭州富阳富宝仪表机床厂 | A kind of Thin-Wall Outer Casing class machine parts'precise hole machined equipment |
-
2019
- 2019-11-18 CN CN201911130251.0A patent/CN110732691A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100164187A1 (en) * | 2007-03-06 | 2010-07-01 | The University Of Sheffield | Adaptive design of fixture for thin-walled shell/cylindrical components |
| CN103273332A (en) * | 2012-12-20 | 2013-09-04 | 贵州航天乌江机电设备有限责任公司 | Method and device preventing machined thin wall annular part from deforming |
| CN205996581U (en) * | 2016-06-23 | 2017-03-08 | 中国人民解放军第五七一九工厂 | Engine compressor disk anti-deformation machining tool fixture |
| CN106735309A (en) * | 2016-11-29 | 2017-05-31 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of long cantilever web pattern part by numerical control machining deformation control method |
| CN106736693A (en) * | 2016-12-23 | 2017-05-31 | 贵州黎阳航空动力有限公司 | A kind of distortion-free processing method of thin-walled disk-like accessory |
| CN207840720U (en) * | 2018-02-13 | 2018-09-11 | 重庆天骄航空动力有限公司 | A kind of auxiliary mould for Thin-Wall Outer Casing processing |
| CN207840764U (en) * | 2018-02-13 | 2018-09-11 | 重庆天骄航空动力有限公司 | A kind of casing processing tool |
| CN109128904A (en) * | 2018-09-13 | 2019-01-04 | 杭州富阳富宝仪表机床厂 | A kind of Thin-Wall Outer Casing class machine parts'precise hole machined equipment |
Non-Patent Citations (1)
| Title |
|---|
| 刘春 等: "聚氨酯泡沫辅助加固钛合金薄壁件铣削性能研究", 《航空制造技术》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206394092U (en) | A kind of diamond diel for having a damping effect | |
| CN109324567A (en) | A kind of processing of ultrasonic vibrating machining workpiece surface appearance and control method | |
| CN109332820A (en) | A kind of processing of ultrasonic vibrating machining gear teeth face pattern and control method | |
| CN105414563A (en) | Machining method of cylindrical thin-wall rotary part with wavy axial section | |
| CN105414899A (en) | Processing method for annular thin-walled structural component with single side cross section to be parabola | |
| CN102251096B (en) | Sheet metal part vibratory stress relief method and device | |
| CN110732691A (en) | Method for machining vibration-proof cutter for thin-wall large-disc parts | |
| US20100068981A1 (en) | Foam Buffing Pad with Compressed Foam Face | |
| CN201163738Y (en) | Double-piece sector mold of motor stator lamination | |
| CN201685123U (en) | Aluminum piston rough turned outer circle clamp of internal combustion engine | |
| CN212858619U (en) | Anti-resonance clamp | |
| CN105665800A (en) | Method for milling precise cavity plane of thin-wall aluminum-magnesium cartridge receiver of aircraft engine | |
| CN105710424A (en) | Numerical control machining method of flight simulation ice-type foam block | |
| CN109079450B (en) | Machining process of thin-wall diffuser cover of aircraft engine | |
| CN205032685U (en) | A die casting die for engine pivot | |
| CN204382392U (en) | A kind of heat insulation layer reduces device toolbox | |
| CN103481111A (en) | Machine tool damping device | |
| CN211727454U (en) | Foundry goods casting head cutting grinding device | |
| CN102794659A (en) | Fixing device | |
| CN213997829U (en) | Cutting integral type shaping sword | |
| CN205043187U (en) | Processing seal groove is with combination blade | |
| CN210188252U (en) | Straightening die for special-shaped curved surface rapid forming machine | |
| CN112264652A (en) | Gear milling machining tool for diesel engine connecting rod | |
| CN106402502A (en) | Double-shock-absorbing structure for automobile pipeline and manufacturing technology of metal fixing sleeve of double-shock-absorbing structure | |
| CN203542091U (en) | Hole type positioning tooling for processing of knuckle bearing hole of passenger vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200131 |
|
| RJ01 | Rejection of invention patent application after publication |