CN105057753A - Cold machining method for special-shaped aviation thin-walled part - Google Patents
Cold machining method for special-shaped aviation thin-walled part Download PDFInfo
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- CN105057753A CN105057753A CN201510495004.6A CN201510495004A CN105057753A CN 105057753 A CN105057753 A CN 105057753A CN 201510495004 A CN201510495004 A CN 201510495004A CN 105057753 A CN105057753 A CN 105057753A
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- gripper shoe
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Abstract
The invention discloses a cold machining method for a special-shaped aviation thin-walled part. The method comprises the following steps that a blank is machined into a part blank composed of a thin-walled piece with the thickness of 6 mm and a process table arranged on at least one side of the thin-walled piece; the inner side of a web of the thin-walled piece is detachably and fixedly provided with a supporting plate used for preventing the thin-walled piece from shaking when the thin-walled piece is milled; the part, on the side not provided with the supporting plate, of the thin-walled piece is milled till the thickness of the thin-walled piece is at most equal to 3 mm, and a circular through hole or a circular groove is formed in the center of the web; the process table connected with the thin-walled piece together is removed; and the supporting plate fixedly installed on the web is taken down to form a finished product.
Description
Technical field
The present invention relates to thin-wall part processing technology, be specifically related to a kind of special-shaped aviation thin-walled parts Cold-forming process.
Background technology
The air resistance coefficient of well-known aircraft is little, and own wt also will have control, and intensity is enough high, and multifrequency nature determines abnormity, the thin-wall construction of airplane component.These thin-walled workpiece are in milling process, and thin-walled can be made to shake because of insufficient strength because cutter rotates the shearing force produced, the part repeatedly shaken can injure part milling in the place of cutter process and cut, and crosses to cut to mean part rejection as part.
Generally adopt vacuum milling folder method at present and fill out gypsum to process, vacuum milling folder method must by auxiliary equipment (vacuumizing machine), fixture itself also wants Milling Process, and can only be used for processing corresponding part, and this method cost is high as seen, the production cycle long, without versatility.
And to fill out gypsum be prevent part from shaking behind reprocessing after gypsum condensation that modified good soft gypsum is bonded at thin-wall part, gypsum is originally that powder formation Long-Time Service can cause certain damage to the precision of precise numerical control machine, again can not utilize and waste also contaminated environment.
Summary of the invention
For the above-mentioned deficiency of prior art, the invention provides special-shaped aviation thin-walled parts Cold-forming process and reduce the processing cost occurring spent by vibrations for solving thin-wall part process.
In order to reach foregoing invention object, the technical solution used in the present invention is:
A kind of special-shaped aviation thin-walled parts Cold-forming process is provided, it is characterized in that, comprise the following steps:
Being processed into by blank by thickness is the part blank that the thin-wall part of 6mm and the thin-wall part process area that at least side has form;
Lastblock is removably fixedly mounted for preventing from occurring during thin-wall part milling the gripper shoe of vibrations inside the web of thin-wall part;
Milling Process is carried out to the thin-wall part not arranging gripper shoe side, until the thickness of thin-wall part equals 3mm at the most, and forms a manhole or a circular groove in the center of web;
Remove the process area linked together with thin-wall part;
Take off the gripper shoe be fixedly mounted on web and form finished product.
Beneficial effect of the present invention is: this programme provides a support force by removably fixedly mounting one piece of gripper shoe inside the web of thin-wall part to web, solves thin-wall part when thin-wall part unnecessary amount is removed in cutter rotational shear and occurs that repeatedly shaking milling injured the problem of cutting; Only need in whole milling process to provide stressed by one piece of gripper shoe, do not need to vacuumize the material such as machine or gypsum to prevent the vibrations of thin-wall part, thus greatly reduce the processing cost of special-shaped thin wall aviation part; The gripper shoe of this programme can utilization repeatedly after taking off, and there is not the waste of auxiliary work-piece, also there is not the pollution of environment.
Accompanying drawing explanation
Fig. 1 is the flow chart of special-shaped aviation thin-walled parts Cold-forming process.
Fig. 2 is the structural representation that gripper shoe is fixedly mounted on part blank.
Fig. 3 is structural representation when not shifting out gripper shoe and process area after thin-wall part milling completes.
Wherein, 1, part blank; 11, thin-wall part; 111, web; 112, manhole; 12, process area; 2, gripper shoe.
Detailed description of the invention
Below the specific embodiment of the present invention is described; so that those skilled in the art understand the present invention; but should be clear; the invention is not restricted to the scope of detailed description of the invention; to those skilled in the art; as long as various change to limit and in the spirit and scope of the present invention determined, these changes are apparent, and all innovation and creation utilizing the present invention to conceive are all at the row of protection in appended claim.
Be of a size of the blank of 294mm × 188mm × 54mm below for one, special-shaped aviation thin-walled parts Cold-forming process is described in detail.
The flow chart of special-shaped aviation thin-walled parts Cold-forming process is shown with reference to figure 1, Fig. 1.As shown in Figure 1, this special-shaped aviation thin-walled parts Cold-forming process specifically comprises the following steps:
Blank is processed into by thickness be the part blank 1(that forms of the thin-wall part 11 of 6mm and thin-wall part 11 process area 12 that at least side has as shown in Figure 2).
Particularly, the one side milling of the blank of 294mm × 188mm × 54mm is formed the dark chamber that a degree of depth is 48mm, and to milling further inside dark chamber, the part blank 1 formed with the L shape thin-wall part that to be formed by thickness be 6mm and the L shape thin-wall part process area 12 that at least side has.
Then, in the web 111(surface area major part of thin-wall part 11) there is the gripper shoe 2 of vibrations when removably fixedly mounting lastblock for preventing thin-wall part 11 milling in inner side.
This gripper shoe 2 is the square plate that one piece of thickness is at least 10mm, the shape that the profile of gripper shoe 2 can match completely with web 111 lower surface, and gripper shoe 2 also can select its surface area to be less than the surface area of web 111; If when gripper shoe 2 selects its surface area to be less than the structure of the surface area of web 111, gripper shoe 2 needs the middle position being arranged on web 111.
After machining for the ease of thin-wall part 11, gripper shoe 2 is taken off from web 111 rapidly, and in one embodiment of the invention, gripper shoe 2 is fixed on web 111 by the mucigel arranged at its four angles place.In production practices process, for the ease of realizing the fixing of gripper shoe 2 rapidly and taking out, mucigel preferably selects AB glue.
Secondly, Milling Process is carried out to the thin-wall part 11 not arranging gripper shoe 2 side, until the thickness of thin-wall part 11 equals 3mm at the most, and forms a manhole 112 or a circular groove in the center of web 111, now, half-finished structure can illustrate the structure come by reference diagram 3.
Again milling is carried out to the thickness of whole thin-wall part 11 after first can milling out manhole 112 or circular groove on web 111 herein, also carry out manhole 112 or circular groove processing after first can carrying out milling to the thickness of whole thin-wall part 11 again, the precision of exchange on whole thin-wall part 11 of two milling actions does not herein form impact completely.
When above-mentioned thin-wall part 11 carries out fine finishining, if directly mill out manhole 112 may damage the gripper shoe 2 be fixed on web 111 on web 111, in order to avoid damage gripper shoe 2 also only can mill out a circular groove on web 111.But, the thickness of circular groove diapire should be less than the thickness of the thin-wall part 11 of final molding herein.
Secondly, the process area 12 linked together with thin-wall part 11 is removed; Pincers worker conventional pliers can be adopted herein to be shifted out by process area 12.
Finally, the gripper shoe 2 be fixedly mounted on web 111 is taken off.
When the center of web 111 is circular groove, after taking off the gripper shoe 2 be fixedly mounted on web 111, also comprise the sidewall adopting the pincers worker such as filing, scraping usual way to remove circular groove bottom.
In one embodiment of the invention, precise numerical control machine can be adopted to carry out Milling Process to blank and thin-wall part 11.
In sum, this programme provides a support force by removably fixedly mounting one piece of gripper shoe 2 inside the web 111 of thin-wall part 11 to web 111, solve cutter rotational shear remove thin-wall part 11 unnecessary amount time thin-wall part 11 occur that repeatedly shaking milling injured the problem of cutting.
Only need in whole milling process to provide stressed by one piece of gripper shoe 2, do not need to vacuumize the material such as machine or gypsum to prevent the vibrations of thin-wall part 11, thus greatly reduce the processing cost of special-shaped thin wall aviation part.
The gripper shoe 2 of this programme can utilization repeatedly after taking off, and there is not the waste of auxiliary work-piece, also there is not the pollution of environment.Adopt this method to add man-hour to special-shaped Thin-walled Workpiece 11, can find that thin-wall part 11 still there will not be vibrations when the thickness of thin-wall part 11 is lower than 1mm, also very good manipulation during milling.
Claims (5)
1. special-shaped aviation thin-walled parts Cold-forming process, is characterized in that, comprise the following steps:
Being processed into by blank by thickness is the part blank that the thin-wall part of 6mm and the thin-wall part process area that at least side has form;
Lastblock is removably fixedly mounted for preventing from occurring during thin-wall part milling the gripper shoe of vibrations inside the web of thin-wall part;
Milling Process is carried out to the thin-wall part not arranging gripper shoe side, until the thickness of thin-wall part equals 3mm at the most, and forms a manhole or a circular groove in the center of web;
Remove the process area linked together with thin-wall part;
Take off the gripper shoe be fixedly mounted on web.
2. special-shaped aviation thin-walled parts Cold-forming process according to claim 1, is characterized in that, described gripper shoe is fixed on described web by the mucigel arranged at its four angles place.
3. special-shaped aviation thin-walled parts Cold-forming process according to claim 1 and 2, it is characterized in that, when the center of described web is circular groove, after taking off the gripper shoe be fixedly mounted on web, also comprise the sidewall adopting filing or scraping to remove described circular groove bottom.
4. special-shaped aviation thin-walled parts Cold-forming process according to claim 3, it is characterized in that, described gripper shoe is the square plate that one piece of thickness is at least 10mm, and its surface area is less than the surface area of described web.
5. the special-shaped aviation thin-walled parts Cold-forming process according to claim 1,2 or 4, is characterized in that, adopts precise numerical control machine to carry out Milling Process to blank and thin-wall part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510495004.6A CN105057753B (en) | 2015-08-13 | 2015-08-13 | Special-shaped aviation thin-walled parts Cold-forming process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510495004.6A CN105057753B (en) | 2015-08-13 | 2015-08-13 | Special-shaped aviation thin-walled parts Cold-forming process |
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| CN105057753A true CN105057753A (en) | 2015-11-18 |
| CN105057753B CN105057753B (en) | 2018-04-27 |
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| CN201510495004.6A Expired - Fee Related CN105057753B (en) | 2015-08-13 | 2015-08-13 | Special-shaped aviation thin-walled parts Cold-forming process |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105834801A (en) * | 2016-05-03 | 2016-08-10 | 哈尔滨飞机工业集团有限责任公司 | Fixing method for lathing of thin plate |
| CN107717337A (en) * | 2017-09-04 | 2018-02-23 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of rigidity reinforced method of low stiff cantilevers class part |
| CN107813108A (en) * | 2017-10-27 | 2018-03-20 | 湖南南方通用航空发动机有限公司 | A kind of thin-walled parts processing method |
| CN107932137A (en) * | 2017-12-04 | 2018-04-20 | 广东长盈精密技术有限公司 | The fixing method of lumen type thin-wall part processing |
| CN110976915A (en) * | 2019-12-18 | 2020-04-10 | 湖北三江航天红阳机电有限公司 | Machining method of thin plate type part |
| CN114769659A (en) * | 2022-05-23 | 2022-07-22 | 中国科学院光电技术研究所 | Precise boring and milling machining method for high-precision sheet parts |
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| CN104526270A (en) * | 2014-11-29 | 2015-04-22 | 江西洪都航空工业集团有限责任公司 | Double-S-shaped double-curve thin-walled part manufacturing process |
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- 2015-08-13 CN CN201510495004.6A patent/CN105057753B/en not_active Expired - Fee Related
Patent Citations (8)
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| US3848325A (en) * | 1972-05-01 | 1974-11-19 | C Bimba | Method for assembling body and end sections for fluid power cylinder |
| CN101602122A (en) * | 2009-07-15 | 2009-12-16 | 天津商业大学 | A kind of precision numerical control milling method for thin-wall parts |
| CN102489720A (en) * | 2011-11-19 | 2012-06-13 | 国营红阳机械厂 | Process for controlling machining deformation of L-shaped aluminum alloy thin-wall end frames |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105834801A (en) * | 2016-05-03 | 2016-08-10 | 哈尔滨飞机工业集团有限责任公司 | Fixing method for lathing of thin plate |
| CN107717337A (en) * | 2017-09-04 | 2018-02-23 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of rigidity reinforced method of low stiff cantilevers class part |
| CN107717337B (en) * | 2017-09-04 | 2022-07-29 | 中国航空工业集团公司洛阳电光设备研究所 | Rigidity enhancing method for low-rigidity cantilever type parts |
| CN107813108A (en) * | 2017-10-27 | 2018-03-20 | 湖南南方通用航空发动机有限公司 | A kind of thin-walled parts processing method |
| CN107932137A (en) * | 2017-12-04 | 2018-04-20 | 广东长盈精密技术有限公司 | The fixing method of lumen type thin-wall part processing |
| CN110976915A (en) * | 2019-12-18 | 2020-04-10 | 湖北三江航天红阳机电有限公司 | Machining method of thin plate type part |
| CN110976915B (en) * | 2019-12-18 | 2021-04-13 | 湖北三江航天红阳机电有限公司 | Machining method of thin plate type part |
| CN114769659A (en) * | 2022-05-23 | 2022-07-22 | 中国科学院光电技术研究所 | Precise boring and milling machining method for high-precision sheet parts |
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| CN105057753B (en) | 2018-04-27 |
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