CN102806379B - Cutting method and cutting and clamping tool - Google Patents

Cutting method and cutting and clamping tool Download PDF

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Publication number
CN102806379B
CN102806379B CN201210303136.0A CN201210303136A CN102806379B CN 102806379 B CN102806379 B CN 102806379B CN 201210303136 A CN201210303136 A CN 201210303136A CN 102806379 B CN102806379 B CN 102806379B
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China
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cutting
processed
assembly
hold
main
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CN102806379A (en
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黄一平
邹吉亮
陈三东
李京颂
江涛
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AECC South Industry Co Ltd
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China National South Aviation Industry Co Ltd
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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 tooling
Technical field
The present invention relates to thin-walled parts processing technique field, more particularly, particularly a kind of cutting process and a kind of cutting clamping tooling.
Background technology
In field of machining, usually can run into such a case, namely processed object is the yielding part of thin-walled.Especially when carrying out machining to this part, because the rigidity of part is poor, processed part and the larger vibration of cutter for cutting generation amplitude will be caused.So, not only reduce the machining accuracy of part, also can cause the damage that cutter is larger, reduce cutting-tool's used life.
In sum, how reducing the situation that vibrating appears when carrying out machining in thin-walled Flexible Deforming Parts, becoming those skilled in the art's problem demanding prompt solution.
Summary of the invention
The technical problem to be solved in the present invention is for providing a kind of cutting process and a kind of cutting clamping tooling, man-hour is being added to thin-walled Flexible Deforming Parts, by using this cutting clamping tooling, compression is fixed to part, and use this cutting process to carry out machining, effectively can reduce the situation that vibrating appears when carrying out machining in thin-walled Flexible Deforming Parts.
For solving the problems of the technologies described above,
The invention provides a kind of cutting clamping tooling, fixing during for carrying out machining to the yielding part of thin-walled, comprise and first hold down assembly for what be fixed the main part of processed part and second to hold down assembly, what the part also comprised for cutting processed part needs was fixed the 3rd holds down assembly.
Preferably, described first holds down assembly and described second holds down assembly and be all no less than two groups, and has the periphery that compartment of terrain is arranged at described supporter each other.
Present invention also offers a kind of cutting process, for carrying out processing process to the yielding part of thin-walled, use cutting clamping tool as described above to carry out processing process, comprising:
Step 1, utilize described first to hold down assembly and described second hold down assembly the main part of processed part is fixed and clamped;
Step 2, utilize the described 3rd hold down assembly by processed part need cut partial fixing;
Step 3, machining is carried out to processed part; Be specially and use bar milling cutter to carry out cutting path process to processed part, adopt bar milling cutter shear blade to ride on part main wall, side edge milling makes processed part and part overall separation.
The invention provides a kind of cutting process, for carrying out processing process to the yielding part of thin-walled, those skilled in the art are known, when carrying out machining to thin-walled parts, due to the poor rigidity of thin-walled parts self, be very easy to produce vibration, so not only cause 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 solve the problem, comprise step:
S1, main body are fixed, and the main part of processed part are fixed and clamped, and the main part of processed part refers to the main part of the product of final molding;
S2, cutting tip are fixed, and processed part are needed the partial fixing cut, thus avoid the part of cutting to damage cutter because of poor rigidity in cutting operation, reduce the Oscillation Amplitude of the main part of processed part;
S3, machining, machining is carried out to processed part.
In the present invention, step S1 is fixed and clamped to main part and processed part is needed partial fixing two operation of cutting by step S2, can realize the rigidity increasing processed part.Reason is: when gripping processed part with assembly, and be the state of secure bond between part, so, in step S1 and step S2, be fixed by the part of cutting main part and needs, by increasing the component count be fixed part, make processed part be in one " tense situation ", thus reduce the possibility that vibration occurs in working angles part main body for it.
Further, in step s 2, the present invention is also fixed the part be cut, and avoids the situation that vibration damage cutter appears in the part be cut.
In step s3 cutting path is processed, because step S2 fixes cutting tip, state that part is in " Complete Bind ", bar milling cutter shear blade is adopted to ride on part main wall, side edge milling makes processed part and part overall separation, produce vibration hardly in working angles, improve the machining accuracy of part, reduce the wearing and tearing of cutter.
One provided by the invention is cut and is clamped frock, fixing during for carrying out machining to the yielding part of thin-walled, comprise and first hold down assembly for what be fixed the main part of processed part and second to hold down assembly, what the part also comprised for cutting processed part needs was fixed the 3rd holds down assembly.First holds down assembly as fixing with holding down assembly, and its Main Function is fixed by processed part, and the general compression mode adopted is compress the end portion of processed part.Second hold down assembly for auxiliary with holding down assembly, it act as under improving processed part fixation further, increases the impetus between part, improves the rigidity of part.
In order to by the rigidity improving processed part that holds down assembly, present invention also offers the 3rd and hold down assembly, the 3rd holds down assembly for needing the part of cutting to be fixed to processed part.In said structure design, the 3rd holds down assembly can increase the impetus cut between clamping tooling and processed part, increases the rigidity of part, can also clamp, avoid it to vibrate in working angles to the part be cut.Therefore, cutting clamping tooling provided by the invention, can improve the machining accuracy of part, can also avoid the vibration of part, improves cutting-tool's used life.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is the flow chart of cutting process in an embodiment of the present invention;
Fig. 2 cuts the structural representation clamping frock in an embodiment of the present invention;
Fig. 3 is the top view of Fig. 2;
In Fig. 2 and Fig. 3, the corresponding relation of component names and Reference numeral is:
First holds down assembly 1; Second holds down assembly 2;
3rd holds down assembly 3; Supporter 31; Pressing plate 32;
Part a.
Detailed description of the invention
Core of the present invention is for providing a kind of cutting process and a kind of cutting clamping tooling, man-hour is being added to thin-walled Flexible Deforming Parts, by using this cutting clamping tooling, compression is fixed to part, and use this cutting process to carry out machining, effectively can reduce the situation that vibrating appears when carrying out machining in thin-walled Flexible Deforming Parts, thus improving the machining accuracy of part, the wearing and tearing reducing cutting tool improve its service life.
In order to make those skilled in the art understand technical scheme of the present invention better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
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, for carrying out processing process to the yielding part a of thin-walled, those skilled in the art are known, when carrying out machining to the yielding part a of thin-walled, 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 solve the problem, comprise step:
S1, main body are fixed, and the main part of processed part a are fixed and clamped, and the main part of processed part a refers to the main part of the product of final molding;
S2, cutting tip are fixed, and processed part a are needed the partial fixing cut, thus avoid the part of cutting vibration occurs in cutting operation and damages cutter, increase the rigidity of the main part of processed part a, reduce the vibration that part a adds man-hour;
S3, machining, machining is carried out to processed part a.
The reason that vibration occurs when carrying out machining process to the yielding part a of thin-walled is needed to analyze at this: the first, for the part a of thin-walled mutability, its rigidity is lower, will produce vibration deform when being subject to less External Force Acting; The second, when carrying out cutting operation, due to the effect of cutting force, the processing stand of processed part a will change along with the distortion of part a, makes the impetus of cutter for cutting and the dynamics of putting forth effort change and produce vibration, affects part processing precision.In above-mentioned situation, not only easily cause part a itself to vibrate, process tool also can cause damage because of vibration; Three, the different impact on part vibration of milling mode is also inconsistent, and adopt traditional layering to remove the cutting process of allowance, part a produces cutting vibration.And harmful effect is produced to cutter for cutting.
From the above-mentioned Ananlysis of main cause to causing processed part a to vibrate, the vibration solving part a can be carried out from following three aspects: the rigidity the first, increasing part main body; The second, the part be cut is fixed; Three, cutting path is processed.
So, in the present invention, step S1 is fixed and clamped to main part and processed part a is needed partial fixing two operation of cutting by step S2, can realize the rigidity increasing processed part a.Reason is: the fixing assembly clamped processed part a is when clamping part a, and be the state of secure bond between part a, so, in step S1 and step S2, be fixed by the part of cutting main part and needs and increase the component count (processed part a not being needed to the operation of fixing part in prior art) that part a is fixed, make processed part a be in one " tense situation ", thus reduce the possibility of its part main body generation vibration in working angles.
And, in step s 2, the present invention is also fixed the part be cut, and takes bar milling cutter shear blade to ride on part (a) main wall simultaneously, side edge milling is processed and is made processed part and the cutting path of part overall separation, avoids the situation that vibration appears in the part be cut.
Cutting process provided by the invention, carrying out the yielding part a of thin-walled processing in the process of process: owing to being partly fixed with being cut main part simultaneously, improve the rigidity of part a, significantly reducing the probability that vibration occurs part a; Further, invention increases the fixing operation to being cut part, taking the cutting path of processed part and part overall separation simultaneously, avoid and be cut part and vibrate, thus reduce further the probability that part a occurs to vibrate.Therefore, the machining path that clamping method provided by the invention and a kind of clamping method therewith combine, can be realized by above-mentioned steps reducing the object that Vibration Condition occurs in thin-walled yielding part a process, improve the machining accuracy of part a, reduce the wearing and tearing of cutter.
Particularly, in a specific embodiment of the present invention, bar milling cutter is used to carry out machining to processed part a in step S3, because be cut the fixing of part, part a is in " Complete Bind " state, bar milling cutter shear blade is adopted to ride on part (a) main wall, side edge milling, processed part is separated with part entire body, vibration is produced hardly in working angles, both decrease process time, turn improved the machining accuracy of part simultaneously, reduce the wearing and tearing of cutter.
Please refer to Fig. 2 and Fig. 3, wherein, Fig. 2 is the structural representation cutting clamping tooling in an embodiment of the present invention; Fig. 3 is the top view of Fig. 2.
Present invention also offers a kind of cutting clamping tooling, fixing during for carrying out machining to the yielding part a of thin-walled, comprise and first hold down assembly for what be fixed the main part of processed part a and 1 and second hold down assembly 2, what the part also comprised for cutting processed part a needs was fixed the 3rd holds down assembly 3.
Particularly, the 3rd hold down assembly and 3 comprise supporter 31, the support column of annular and to be arranged on support column and to abut the pressing plate 32 coordinated with supporter 31.Man-hour is being added to the thin-walled Flexible Deforming Parts a with loop configuration, part a intermediate entities part to be processed needs excision thus forms loop configuration, in the present embodiment, hold down assembly by the 3rd 3 structural design, supporter 31 can provide the support of annular to part a, and coordinates pressing plate 32, can will need the portion compresses of excision, thus improve the rigidity of part a, and cut part is avoided to deform.
Particularly, first holds down assembly 1 and second holds down assembly and 2 is all no less than two groups, and has the periphery that compartment of terrain is arranged at supporter 31 each other.
First holds down assembly 1 for fixing with holding down assembly, and its Main Function is fixed by processed part a, and the general compression mode adopted is compress the end portion of processed part a.Second holds down assembly 2 for auxiliary with holding down assembly, and it act as under improving processed part a fixation further, increases the impetus between part a, improves the rigidity of part a.In the present invention, first hold down assembly 1 and second hold down assembly 2 structure similar to prior art to specific implementation, will repeat no more at this.
In order to by the rigidity improving processed part a that holds down assembly, present invention also offers the 3rd and hold down assembly and the 3, three hold down assembly 3 for needing the part of cutting to be fixed to processed part a.In said structure design, the 3rd holds down assembly 3 can increase and cut the impetus that clamps between frock and processed part a, increases the rigidity of part a, can also clamp, avoid it to vibrate in working angles to the part be cut.Therefore, cutting clamping tooling provided by the invention, can improve the machining accuracy of part a, can also avoid the vibration of part a and cutter, improves cutting-tool's used life.
Clamp frock to a kind of cutting process provided by the present invention and a kind of cutting to be above described in detail.Apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.

Claims (3)

1. one kind is cut clamping tooling, fixing during for carrying out machining to the yielding part (a) of thin-walled, comprise and first hold down assembly (1) for what be fixed the main part of processed part (a) and second to hold down assembly (2), what need the part of cutting to be fixed to processed part (a) the 3rd holds down assembly (3); The intermediate entities part that it is loop configuration that the part that described needs cut is specially part (a) to be processed cutting; Described 3rd hold down assembly (3) comprise supporter (31), the support column of annular and to be arranged on described support column and to abut the pressing plate (32) coordinated with described supporter (31).
2. cutting clamping tooling according to claim 1, it is characterized in that, described first hold down assembly (1) and described second hold down assembly (2) be all no less than two groups, and there is periphery that compartment of terrain is arranged at described supporter (31) each other.
3. a cutting process, for carrying out processing process to the yielding part (a) of thin-walled, is characterized in that, uses the cutting clamping tool as described in any one of claim 1 to 2 to carry out processing process, comprising:
Step 1, utilize described first to hold down assembly (1) and described second hold down assembly (2) main part of processed part (a) is fixed and clamped;
Step 2, utilize the described 3rd hold down assembly (3) by processed part (a) need cut partial fixing;
Step 3, machining is carried out to processed part (a); Be specially and use bar milling cutter to carry out cutting path process to processed part, adopt bar milling cutter shear blade to ride on part main wall, side edge milling makes processed part and part overall separation.
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
CN201210303136.0A CN102806379B (en) 2012-08-23 2012-08-23 Cutting method and cutting and clamping tool

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

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2413977B (en) * 2004-05-13 2006-04-12 Rolls Royce Plc Method of manufacturing thin wall isogrid casings

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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.