CN102806379A - Cutting method and cutting and clamping tool - Google Patents

Cutting method and cutting and clamping tool Download PDF

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Publication number
CN102806379A
CN102806379A CN2012103031360A CN201210303136A CN102806379A CN 102806379 A CN102806379 A CN 102806379A CN 2012103031360 A CN2012103031360 A CN 2012103031360A CN 201210303136 A CN201210303136 A CN 201210303136A CN 102806379 A CN102806379 A CN 102806379A
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China
Prior art keywords
cutting
processed
assembly
cut
main
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CN2012103031360A
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Chinese (zh)
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CN102806379B (en
Inventor
黄一平
邹吉亮
陈三东
李京颂
江涛
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中国南方航空工业(集团)有限公司
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Priority to CN201210303136.0A priority Critical patent/CN102806379B/en
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Abstract

The invention discloses a cutting method, which comprises the following steps of: 1, fixedly pressing a main body part of a part to be machined; 2, fixing a to-be-cut part of the machined part; and 3, cutting the machined part. According to the cutting method, the components for fixing the parts are increased, and the vibration possibility of the parts in the cutting process can be reduced. The cut part is fixed, so that a phenomenon that the cut part vibrates is avoided. By adoption of the mode of integrally separating the machined part from the part, the cutter loss is reduced. The invention also discloses a cutting and clamping tool, which comprises a first pressing component and a second pressing component which are used for fixedly pressing the main body part of the machined part, and a third pressing component used for fixedly pressing the to-be-cut part of the machined part. The acting points between the parts are increased, and the aim of improving the rigidity of the parts is fulfilled.

Description

A kind of cutting process and a kind of cutting clamping frock
Technical field
The present invention relates to the thin-walled parts processing technique field, more particularly, particularly a kind of cutting process and a kind of cutting clamping frock.
Background technology
In field of machining, usually can run into such a case, promptly processed object is the yielding part of thin-walled.Especially when this part is carried out cut,, will cause processed part and cutting with the bigger vibration of cutter generation amplitude because the rigidity of part is relatively poor.So, not only reduce the machining accuracy of part, also can cause the bigger damage of cutter, reduced the service life of cutter.
In sum, how to reduce vibration appears in the yielding part of thin-walled when carrying out cut situation, become those skilled in the art's problem demanding prompt solution.
Summary of the invention
The technical problem that the present invention will solve is for providing a kind of cutting process and a kind of cutting clamping frock; The yielding part of thin-walled is being added man-hour; Through using this cutting clamping frock that part is fixed and clamped; And use this cutting process to carry out cut, can effectively reduce vibration appears in the yielding part of thin-walled when carrying out cut situation.
For solving the problems of the technologies described above, the invention provides a kind of cutting process, be used for the yielding part of thin-walled is carried out processed, comprise step:
S1, the main part of processed part is fixed and clamped;
S2, the partial fixing that processed part need be cut;
S3, processed part is cut processing.
Preferably, in said step S3, use the bar milling cutter that processed part is carried out cutting path and handle, adopt bar milling cutter shear blade to ride on the part main wall, the side edge milling makes processed part and part overall separation.
The present invention also provides a kind of cutting clamping frock; Fixing when being used for that the yielding part of thin-walled carried out cut; What comprise that the main part that is used for processed part is fixed first holds down assembly and second holds down assembly, and also comprises being used for the 3rd holding down assembly to what the part that processed part need cut was fixed.
Preferably, the said the 3rd hold down assembly comprise the annular supporter, support column and be arranged on the said support column and the pressing plate that cooperates with said supporter butt.
Preferably, said first holds down assembly and said second holds down assembly and all be no less than two groups, and has the periphery that the compartment of terrain is arranged at said supporter each other.
The invention provides a kind of cutting process; Be used for the yielding part of thin-walled is carried out processed, those skilled in the art can know, when thin-walled parts is carried out cut; Because the rigidity of thin-walled parts self is poor; Be very easy to produce vibration, so not only cause the thin-walled parts machining accuracy less, also can reduce the service life of cutting tool.For this reason, the invention provides a kind of cutting process that can address the above problem, comprise step:
S1, main body are fixed, and the main part of processed part is fixed and clamped, and the main part of processed part is meant the main part of the product of final molding;
S2, cutting tip are fixed, the partial fixing that processed part need be cut, thus the part of avoiding cutting is damaged cutter because of poor rigidity in cutting operation, reduce the Oscillation Amplitude of the main part of processed part;
S3, cutting are handled, processed part are cut processing.
In the present invention, step S1 main part is fixed and clamped and step S2 with two operations of partial fixing that processed part need cut, can realize increasing the rigidity of processed part.Reason is: when with assembly processed part being gripped; And between the part state of secure bond, so, in step S1 and step S2; Through the part of main part and needs cutting is fixed; Through increasing the component count that part is fixed, make processed part be in a kind of " tense situation ", thereby reduce the possibility that vibration takes place in working angles part main body for it.
And in step S2, the present invention also fixes the part that is cut, and the situation of vibration damage cutter appears in the part of having avoided being cut.
In step S3, cutting path is handled; Because step S2 fixes cutting tip, part is in " constraint fully " state, adopts bar milling cutter shear blade to ride on the part main wall; The side edge milling makes processed part and part overall separation; Can produce vibration hardly in the working angles, improve the machining accuracy of part, reduce the wearing and tearing of cutter.
A kind of cutting provided by the invention clamps frock; Fixing when being used for that the yielding part of thin-walled carried out cut; What comprise that the main part that is used for processed part is fixed first holds down assembly and second holds down assembly, and also comprises being used for the 3rd holding down assembly to what the part that processed part need cut was fixed.First holds down assembly to fixing with holding down assembly, and it mainly act as fixes processed part, and the general mode that compresses that adopts compresses for the end portion to processed part.Second holds down assembly to it act as and is further improving under the processed part fixation with holding down assembly to auxiliary, increase and part between impetus, the rigidity of raising part.
In order to improve the rigidity of processed part through holding down assembly, the present invention also provides the 3rd to hold down assembly, and the 3rd holds down assembly is used for the part that processed part need cut is fixed.In said structure design, the 3rd holds down assembly can increase the impetus between cutting clamping frock and the processed part, and the rigidity of increase part can also be carried out clamping to the part that is cut, and avoids it in working angles, to vibrate.Therefore, cutting clamping frock provided by the invention can improve the machining accuracy of part, can also avoid the vibration of part, improves the service life of cutter.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is embodiments of the invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to the accompanying drawing that provides.
Fig. 1 is the flow chart of cutting process in an embodiment of the present invention;
Fig. 2 clamps the structural representation of frock for cutting in an embodiment of the present invention;
Fig. 3 is the vertical view of Fig. 2;
The corresponding relation of component names and Reference numeral is among Fig. 2 and Fig. 3:
First holds down assembly 1; Second holds down assembly 2;
The 3rd holds down assembly 3; Supporter 31; Pressing plate 32;
Part a.
The specific embodiment
Core of the present invention is for providing a kind of cutting process and a kind of cutting clamping frock; The yielding part of thin-walled is being added man-hour; Through this cutting clamping frock of use part is fixed and clamped, and uses this cutting process to carry out cut, can effectively reduce vibration appears in the yielding part of thin-walled when carrying out cut situation; Thereby improve the machining accuracy of part, the wearing and tearing that reduce cutting tool improve its service life.
In order to make those skilled in the art understand technical scheme of the present invention better, the present invention is done further detailed description below in conjunction with accompanying drawing and specific embodiment.
Please refer to Fig. 1, Fig. 1 is the flow chart of cutting process in an embodiment of the present invention.
The invention provides a kind of cutting process; Be used for the yielding part a of thin-walled is carried out processed, those skilled in the art can know, when the yielding part a of thin-walled is carried out cut; Because the rigidity of part a self is less; Be very easy to produce vibration, distortion, so not only cause thin-walled parts a machining accuracy lower, also can shorten the service life of cutting tool.For this reason, the invention provides a kind of cutting process that can address the above problem, comprise step:
S1, main body are fixed, and the main part of processed part a is fixed and clamped, and the main part of processed part a is meant the main part of the product of final molding;
S2, cutting tip are fixed, the partial fixing that processed part a need be cut, thus vibration and damage cutter take place in the part of avoiding cutting in cutting operation, increase the rigidity of the main part of processed part a, have reduced the vibration that part a adds man-hour;
S3, cutting are handled, processed part a are cut processing.
Need analyze the reason that the yielding part a of thin-walled carry out taking place when cut is handled vibration at this: the first, for the part a of thin-walled mutability, its rigidity is lower, does the time spent and will produce vibration and deform receiving less external force; The second, when carrying out cutting operation; Because the effect of cutting force; The processing stand of processed part a will change along with the distortion of part a, and feasible cutting changes with the impetus of cutter and the dynamics of putting forth effort and produces vibration, influences part processing precision.In above-mentioned situation, not only cause part a itself to vibrate easily, process tool also can cause damage because of vibration; Three, the milling mode difference is also inconsistent to the influence of part vibration, adopts traditional layering to remove the cutting process of allowance, and part a produces cutting vibration.And to the cutting produce harmful effect with cutter.
Can know that to the main cause analysis that causes processed part a vibration the vibration that solves part a can be carried out from following three aspects by above-mentioned: the rigidity that the first, increases the part main body; The second, the part that is cut is fixed; Three, cutting path is handled.
So, in the present invention, step S1 main part is fixed and clamped and step S2 with two operations of partial fixing that processed part a need cut, can realize increasing the rigidity of processed part a.Reason is: to processed part a carry out clamping fixing with assembly when part a is carried out clamping; And between the part a state of secure bond; So; In step S1 and step S2; Through to main part and need the part of cutting fix and increase component count that part a is fixed (operation of the part that need not fix processed part a in the prior art), make processed part a be in a kind of " tense situation ", the possibility vibrated takes place thereby reduce its part main body in working angles.
And; In step S2, the present invention also fixes the part that is cut, and takes bar milling cutter shear blade to ride on part (a) main wall simultaneously; The cutting path that makes processed part and part overall separation is processed in the side edge milling, and the situation of vibration appears in the part of having avoided being cut.
Cutting process provided by the invention, in that yielding part a carries out in the process of processed to thin-walled: since simultaneously to main part be cut part and fix, improved the rigidity of part a, reduced the probability that vibration takes place part a effectively; And the present invention has increased being cut the fixing operation of part, takes the cutting path of processed part and part overall separation simultaneously, has avoided being cut part and has vibrated, thereby further reduced part a the probability that vibrates takes place.Therefore; The machining path that clamping method provided by the invention and a kind of clamping method therewith combine; Can realize reducing the purpose that the vibration situation takes place in the yielding part a of the thin-walled process through above-mentioned steps, improve the machining accuracy of part a, reduce the wearing and tearing of cutter.
Particularly, in a specific embodiment of the present invention, use the bar milling cutter that processed part a is cut processing among the step S3; Because be cut the fixing of part, part a is in " constraint fully " state, adopts bar milling cutter shear blade to ride on part (a) main wall; The side edge milling makes processed part and part main body overall separation, can produce vibration hardly in the working angles; Both reduce process time, improved the machining accuracy of part simultaneously again, reduced the wearing and tearing of cutter.
Please refer to Fig. 2 and Fig. 3, wherein, Fig. 2 is the structural representation of cutting clamping frock in an embodiment of the present invention; Fig. 3 is the vertical view of Fig. 2.
The present invention also provides a kind of cutting clamping frock; Fixing when being used for that the yielding part a of thin-walled carried out cut; What comprise that the main part that is used for processed part a is fixed first holds down assembly and 1 and second holds down assembly 2, also comprises being used for the 3rd holding down assembly 3 to what the part that processed part a need cut was fixed.
Particularly, the 3rd hold down assembly 3 comprise the annular supporter 31, support column and be arranged on the support column and the pressing plate 32 that cooperates with supporter 31 butts.The yielding part a of thin-walled with loop configuration is being added man-hour, thereby part a intermediate entities to be processed partly need be excised the formation loop configuration, in the present embodiment; Through the 3rd hold down assembly 3 structural design; Supporter 31 can provide the support of annular to part a, and cooperates pressing plate 32, can the part that need excision be compressed; Thereby improve the rigidity of part a, and avoid being deformed by cut-out.
Particularly, first holds down assembly 1 and second holds down assembly and 2 all is no less than two groups, and has the periphery that the compartment of terrain is arranged at supporter 31 each other.
First holds down assembly 1 for fixing with holding down assembly, and it mainly act as fixes processed part a, and the general mode that compresses that adopts compresses for the end portion to processed part a.Second hold down assembly 2 for auxiliary it act as and is further improving under the processed part a fixation with holding down assembly, increase and part a between impetus, the rigidity of raising part a.In the present invention, first 1 and second hold down assembly 2 the structure that holds down assembly is similar with prior art with concrete implementation, will repeat no more at this.
In order to improve the rigidity of processed part a through holding down assembly, the present invention also provides the 3rd to hold down assembly and 3, the three hold down assembly and 3 be used for the part that processed part a need cut is fixed.In said structure design, the 3rd holds down assembly 3 can increase cutting and clamp the impetus between frock and the processed part a, and the rigidity of increase part a can also be carried out clamping to the part that is cut, and avoids it in working angles, to vibrate.Therefore, cutting clamping frock provided by the invention can improve the machining accuracy of part a, can also avoid the vibration of part a and cutter, improves the service life of cutter.
More than a kind of cutting process provided by the present invention and a kind of cutting clamped frock carried out detailed introduction.Used concrete example among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.

Claims (5)

1. a cutting process is used for the yielding part of thin-walled (a) is carried out processed, it is characterized in that, comprising:
Step 1, the main part of processed part (a) is fixed and clamped;
Step 2, processed part (a) needed the partial fixing of cutting;
Step 3, processed part (a) is cut processing.
2. cutting process according to claim 1 is characterized in that, in said step 3, uses the bar milling cutter that processed part (a) is carried out cutting path and handles.
3. cutting clamping frock; Fixing when being used for that the yielding part of thin-walled (a) carried out cut; What comprise that the main part that is used for processed part (a) is fixed first holds down assembly (1) and second holds down assembly (2), the 3rd hold down assembly (3) that processed part (a) is needed that the part of cutting is fixed.
4. cutting clamping frock according to claim 3 is characterized in that, the said the 3rd hold down assembly (3) comprise the annular supporter (31), support column and be arranged on the said support column and the pressing plate (32) that cooperates with said supporter (31) butt.
5. cutting clamping frock according to claim 4 is characterized in that, said first hold down assembly (1) and said second hold down assembly (2) all be no less than two groups, and have the periphery that the compartment of terrain is arranged at said supporter (31) each other.
CN201210303136.0A 2012-08-23 2012-08-23 Cutting method and cutting and clamping tool Active CN102806379B (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201210303136.0A CN102806379B (en) 2012-08-23 2012-08-23 Cutting method and cutting and clamping tool

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CN102806379A true CN102806379A (en) 2012-12-05
CN102806379B CN102806379B (en) 2015-03-25

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050252001A1 (en) * 2004-05-13 2005-11-17 Rolls-Royce Plc Method of manufacturing thin wall isogrid casings
CN201895227U (en) * 2010-05-24 2011-07-13 南车成都机车车辆有限公司 End cover machining fixture
CN102139457A (en) * 2011-04-09 2011-08-03 扬州华宇管件有限公司 Clamping deformation resistant jig for machining large-diameter elbow
CN102248376A (en) * 2011-06-28 2011-11-23 湖北三江航天江北机械工程有限公司 Machining method of porous thin-wall protective tube with large length-diameter ratio
CN102350524A (en) * 2011-08-25 2012-02-15 沈阳飞机工业(集团)有限公司 Milling processing method for inner molding surface of opening end head of thin-walled structural member

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050252001A1 (en) * 2004-05-13 2005-11-17 Rolls-Royce Plc Method of manufacturing thin wall isogrid casings
CN201895227U (en) * 2010-05-24 2011-07-13 南车成都机车车辆有限公司 End cover machining fixture
CN102139457A (en) * 2011-04-09 2011-08-03 扬州华宇管件有限公司 Clamping deformation resistant jig for machining large-diameter elbow
CN102248376A (en) * 2011-06-28 2011-11-23 湖北三江航天江北机械工程有限公司 Machining method of porous thin-wall protective tube with large length-diameter ratio
CN102350524A (en) * 2011-08-25 2012-02-15 沈阳飞机工业(集团)有限公司 Milling processing method for inner molding surface of opening end head of thin-walled structural member

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Address after: 412000 Dong Jiaduo, Lusong District, Zhuzhou City, Hunan Province

Patentee after: China Hangfa South Industrial Co. Ltd.

Address before: 412000 Dong Jiaduo, Lusong District, Zhuzhou City, Hunan Province

Patentee before: China Southern Airlines Industry (Group) Co., Ltd.

CP01 Change in the name or title of a patent holder