CN102615300A - Elastic boring bar capable of realizing automatic adjustment for radial direction of boring cutter - Google Patents
Elastic boring bar capable of realizing automatic adjustment for radial direction of boring cutter Download PDFInfo
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- CN102615300A CN102615300A CN2012100822844A CN201210082284A CN102615300A CN 102615300 A CN102615300 A CN 102615300A CN 2012100822844 A CN2012100822844 A CN 2012100822844A CN 201210082284 A CN201210082284 A CN 201210082284A CN 102615300 A CN102615300 A CN 102615300A
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Abstract
The invention discloses an elastic boring bar capable of realizing automatic adjustment for the radial direction of a boring cutter. The elastic boring bar comprises an elastic deformation body as a boring bar main body as well as a skew block, an ejector rod assembly and a pull rod which are arranged inside the boring bar main body, wherein eight elastic wall structures playing a role of hinges are formed at the middle of the elastic deformation body; the skew block is arranged inside the front end of the elastic deformation body and is provided with an upper inclined plane and a lower inclined plane which are mutually parallel; the pull rod is connected with the skew block for driving the skew block to do an axial motion; and the ejector rod generates radial deflection when the pull rod drives the skew block to do the axial motion. According to the elastic boring bar disclosed by the invention, the integral rigidity of the boring bar can be improved; the two-way supplementation of radial adjustment is realized; and the accuracy and reliability of radial adjustment of the boring bar are correspondingly improved.
Description
Technical field
The invention belongs to the process tool field of accessories, more specifically, relate to a kind of elastic boring bar of realizing the automatic radiai adjustment of boring cutter in the boring process.
Background technology
In producing manufacturing in enormous quantities, the high accuracy boring is the hole and the important fine finishining means of circle of harnessing an animal to a cart.But because inevitable tool wear and other enchancement factor must cause the decline of machining accuracy, thereby the adjustment of cutter is just inevitable; Therefore, have automatically that the boring processing technology of accurate micro-toolsetting function just becomes the indispensable means that guarantee and improve crudy and efficient, in addition, processing for the interpolation of irregularly-shaped hole needs cutter in process, to realize micro-radial feed equally.
The device of present technical realization boring trace radial feed mainly contains elastic mechanism such as elasticity cutter holder, elastic boring bar and special machine mechanism such as eccentric shaft etc.The former main advantage is to obtain higher compensation precision, but rigidity is relatively poor; The latter's main advantage is good rigidity, but structure, complex process, not easy care.In addition, inevitably mechanical wear all can cause the decline of compensation precision, and even loses efficacy.
The inventor has proposed a kind of novel elastic boring bar at CN02115538.0, and its elastic wall structure through the boring bar stage casing realizes adjusting that boring cutter is directly made progress.Yet show through practical applications and experiment for many years: 1) in case the big disturbance of cutting force appearance in process can bring bigger size and dimension error, therefore, its rigidity remains further to be improved; 2) since this invention can only realize unidirectional compensation (radially microfeed), respective limits this The Application of Technology scope; 3) because the rigidity and the maximum compensation range mutual restriction of this elastic boring bar for example require rigidity big, and then maximum compensation range is little, and vice versa, this has limited the range of application of this boring bar equally; 4) precision to the boring cutter radiai adjustment remains further to be improved, to be adapted to the production requirement of higher processing criterion; 5) screw of push rod component has limited the design space of push rod in the deformable body mounted inside, thereby has reduced the intensity and the rigidity of push rod; 6) coupling sleeve of this invention boring bar has increased the axial length of this boring bar; And make elastic boring bar and connecting of main shaft increase a link; Thereby reduced the integral rigidity of boring bar, in addition, the contact position of this coupling sleeve and pull bar is easy to wearing and tearing; Precision and reliability to compensation have the significant adverse influence, need periodic replacement.
Summary of the invention
Above defective to prior art; The object of the present invention is to provide a kind of boring bar that can carry out the micron order toolsetting automatically; Can significantly improve the rigidity of elastic boring bar or enlarge maximum toolsetting (compensation) scope; Satisfying the needs of control of automatic error in the accurate boring processing and interpolation processing, thereby guarantee and improve quality, efficient and the reliability of processing.
For realizing above-mentioned purpose; According to the present invention, a kind of radially self-regulating elastic boring bar of boring cutter of realizing is provided, this elastic boring bar is by the elastic deformable body as the boring bar main body; And be arranged on this elastic deformable body inner skewback, push rod component and pull bar and constitute, wherein:
The front end of said elastic deformable body is used for being connected with the knife bar assembly that boring cutter is housed; The rear end is used for being connected with the boring dynamic head main spindle is coaxial; The middle part of said elastic deformable body is respectively arranged with a plurality of grooves symmetrically on its two cross sections that are parallel to each other, and the compartment between the groove on each cross section has formed four elastic wall structures that play hinge effect;
Said skewback is arranged on the front end inside of elastic deformable body, and possesses two inclined-planes up and down that are parallel to each other;
Said pull bar links to each other with said skewback, is used under the driving of motor, driving skewback and moves axially together;
Said push rod component comprise two with the perpendicular push rod of the axial direction of elastic deformable body; Their ends separately are fixedly connected with the elastic deformable body front end; An other end keeps in touch with two inclined-planes up and down of said skewback respectively, drives skewback at pull bar thus and does together in the axially movable process radial deflection to take place.
Through according to the elastic boring bar of conceiving more than the present invention; When the coupled skewback of drive moves axially in elastic deformable body inside together under the driving of pull bar at servomotor; Skewback is had an effect with two push rods that the last lower inclined plane that keeps with skewback keeps in touch, and promotes push rod thus and makes radial deflection; Because the middle part of elastic deformable body is provided with a plurality of grooves and passes through eight elastic walls of the corresponding formation of compartment between the adjacent slot; These elastic walls do in the process of radial deflection to play through the elasticity of self effect of hinge at push rod; Make the front end as the elastic deformable body of boring bar main body can relatively move in the radial direction on the whole thus; Correspondingly, realize knife bar and tool position automatic adjusting diametrically thereof.
Particularly owing to saved the coupling sleeve element according to the elastic boring bar of above-mentioned design, the boring dynamic head main spindle can with direct coaxial connection of the rear end of elastic deformable body, can improve the integral rigidity of boring bar thus; Because skewback and pull bar are kept linking to each other independently, so both simplified the manufacturing process of part, be convenient to change and safeguard, also be easy in the bidirectional compensating process, guarantee the precision on inclined-plane self simultaneously; Push rod component comprises that the design of two cover push rods can not only realize bidirectional compensating, the corresponding integral rigidity that also improves boring bar up and down; In addition; Eight of elastic deformable body set inside elastic wall structures that play hinge effect can further improve boring cutter radially bidirectional modulation precision and reach micron order; And the skewback structure adds with steel ball and is with the fit system of surface push-rod to compare; Needn't consider the wearing and tearing and the influence of distortion of steel ball self, the same like this accuracy and the reliability that can improve the boring cutter radiai adjustment to radially regulating.
As further preferably, the elastic wall structure that forms on each cross section of the said elastic deformable body distribution that is centrosymmetric, they are parallel to each other and perpendicular to the radial direction of elastic deformable body.
Through with formed elastic wall structure on each cross section of elastic deformable body according to like the upper type setting; Do in the process of radial deflection at push rod like this; The elastic wall structure can balancedly work up and down as the device of hinge-like, gets the radial deflection that elastic deformable body is also correspondingly kept in balance thus; In addition, the physical dimension of elastic wall under situation about being consistent, easy for calculation and adjust the thickness of each wall, thus be convenient to the integral translation effect of knife bar is controlled.
As further preferably, said elastic wall thickness of structure is 0.3mm～3mm.
Through the elastic wall thickness of structure is specifically limited above number range; Practice result proves; The elastic wall structure of this thickness range compared with prior art; Can realize largely more accurate radially the regulating automatically of boring bar, and guarantee rational boring bar rigidity and the maximum scope of replenishing.
As further preferably; Said push rod form by screw rod, locking nut and steel ball and from outer to realize and being fixedly connected of elastic deformable body front end; One end of wherein said screw rod possesses threaded portion, is able to be locked and apply preload through being located at the lip-deep said locking nut of elastic deformable body, and an other end is the face of cylinder that the end has centre bore; Said steel ball is spherical cap structure and is installed in this face of cylinder, and its spherical crown plane is used for keeping in touch with said inclined-plane.
Through above-mentioned setting to the push rod component structure; Because the steel ball sphere can freely rotate in the screw rod centre bore; Make the steel ball plane to contact fully with the skewback plane adaptively; Improved contact stiffness thus, can reduce wearing and tearing when making steel ball and skewback relative motion effectively, the even performance of its wearing and tearing simultaneously significantly improves its normal useful life and improves reliability; In addition, post rod parts assembles from the outside of elastic deformable body, can increase the design space of skewback and pull bar like this, thereby increases the intensity and the rigidity of skewback and pull bar, reaches the purpose that improves the boring bar integral rigidity.
As further preferably, the middle part of said push rod possesses threaded portion, and this threaded portion is used for being meshed with the inner pairing threaded portion of elastic deformable body, and its diameter is greater than the diameter of the threaded portion of said push rod end.
Through making post rod parts middle part also be equipped with threaded portion and cooperating connection with elastic deformable body; Can further guarantee push rod component in the inner location of elastic deformable body, and the corresponding boring cutter power spindle that makes is passed to the elastic wall structure at elastic deformable body middle part more accurately through the power that pull bar and skewback transmitted; In addition, the diameter of push rod end thread part is set to the diameter less than the middle top threaded portion, can guarantee that like this locking nut more effectively is pressed on the surface of elastic deformable body.
As further preferably, the threaded portion at said push rod middle part does not exceed the corresponding threaded portion that meshes of the inner institute of elastic deformable body.
Through with the threaded portion in the push rod according to the aforesaid way setting, can avoid the difficulty of the push rod component dismounting that screw thread distortion causes effectively, not only maintain easily, and avoided the inefficacy of push rod component.
As further preferably, said pull bar is arranged in linear bearing or the sliding bearing and with said skewback and links to each other, is used for that the drive skewback moves axially together under the driving of motor.
Link to each other through pull bar is set directly in linear bearing or the sliding bearing and with skewback, can save the coupling sleeve structure, corresponding other circuit elements design spaces that increased on the one hand; The installation and the feature operation of pull bar be can realize with simple structure on the other hand, and maintenance and replacing are convenient to.
As further preferably, the gradient of said skewback is 1: 5～1: 50.
Gradient through with skewback specifically is defined as above number range; Practice result proves; Can realize that reasonably balancing pull rod moves axially distance and pull bar driving force; Help reducing the axial length of elastic lever, reduce the pull bar driving force, thereby reach the technique effect of the mechanical wear that reduces to drive link.
As further preferably, said elastic deformable body for example is made up of the spring steel material, and the inclined-plane of said skewback for example is made up of the carbide alloy material.
Through the above-mentioned qualification to the formation material on elastic deformable body and skewback inclined-plane, practice result proves, can realize more satisfactorily radially accurate of boring cutter regulated automatically, can increase maximum compensation range simultaneously, and reach the technique effect that reduces mechanical wear.
As further preferably, said elastic boring bar also comprises protective cover, and this protective cover is fixed on the front end of elastic deformable body, and leaves with it such as be the gap about 1mm.
Front end through at elastic boring bar is provided with protective cover, can prevent that smear metal etc. from entering into boring bar, and help protecting the inside element of boring bar.
In general; Through the elastic boring bar that the present invention conceived; Can when significantly improving the elastic boring bar integral rigidity, realize regulating automatically to the two-way micron order on the cutter radial in the boring processing process is accurate; And carry out automatic mismachining tolerance compensation processing according to the detection of mismachining tolerance signal and result, thus guarantee and improve the precision and the efficient of boring processing, can be used for interpolation processing in addition to different in nature hole.
Description of drawings
Fig. 1 is the integrally-built schematic cross-section according to elastic boring bar of the present invention;
Fig. 2 is the sketch map of elastic wall structure that is arranged on a plurality of grooves and the corresponding formation at boring bar middle part according to the present invention;
Fig. 3 is the principle schematic of the role in boring bar and tool feeding position radiai adjustment process of the elastic wall structure shown in Fig. 2;
Fig. 4 is the structural representation according to the push rod in the elastic boring bar of the present invention.
In institute's drawings attached, identical Reference numeral is used for representing components identical, wherein:
The pairing thread engagement part of threaded portion 20 elastic deformable bodies at the threaded portion 19 screw rods middle part of 1 elastic deformable body, 2 skewbacks, 3 push rod component, 4 protective covers, 5 knife bar assemblies, 6 boring dynamic head main spindles, 7 pull bar 8-12 grooves, 13 elastic wall structures, 14 grooves, 15 screw rods, 16 locking nuts, 17 steel balls, 18 screw rod ends
The specific embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Referring to Fig. 1, Fig. 1 is the integrally-built schematic cross-section according to elastic boring bar of the present invention.As shown in fig. 1, form jointly by elastic deformable body 1, skewback 2, push rod component 3, knife bar assembly 5, pull bar 7 with as elements such as optional protective covers 4 according to elastic boring bar of the present invention.Elastic deformable body 1 for example can be cylindrical structure, and be made up of materials such as spring steel materials as the main body that constitutes elastic boring bar.The front end of elastic deformable body 1 (in Fig. 1, being right-hand member) is used for being connected with the knife bar assembly 5 that boring cutter is housed; Its rear end (in Fig. 1, being left end) is used for and 6 coaxial connections of boring dynamic head main spindle; Working as the boring dynamic head main spindle thus provides under the situation of driving, and support and location knife bar assembly are realized boring processing.
The middle part of elastic deformable body 1 is provided with ten grooves on two different parallel cross sections that are distributed in elastic deformable body 1 central region respectively, referring to A-A among Fig. 1 and B-B, and keeps symmetry between the groove on groove on the A-A cross section and the B-B cross section.Through the setting of these grooves, the compartment between the adjacent slot is because the elasticity of himself has formed eight elastic wall structures that play hinge effect respectively.When these elastic walls are stressed, corresponding to stressed direction and intensity and deform, make the boring bar main body deform diametrically thus.
In the inside of elastic deformable body 1, be provided with skewback 2, push rod component 3 and pull bar 7.Skewback 2 is in that the front end of elastic deformable body 1 is inner, and its vertical section is the parallelogram structure haply, and its upper and lower surfaces are the inclined-planes that are parallel to each other, and also promptly constitutes the oblique angle of certain angle respectively with respect to the axial direction of elastic deformable body 1.For the gradient on inclined-plane, can set according to the conditions such as technological parameter of boring processing.In a preferred embodiment, the gradient of skewback is between 1: 5～1: 50.Gradient through with skewback specifically is defined as above number range; Prove through more practice result; Can realize that reasonably balancing pull rod moves axially distance and pull bar driving force; Help reducing the axial length of elastic lever, reduce the pull bar driving force, thereby reduce to drive the technique effect of the mechanical wear of link.In addition, the inclined-plane of skewback can be made up of the carbide alloy material of YG3X for example, realizes thus radially accurate of boring cutter regulated automatically, and reduces mechanical wear.
Pull bar 7 is and the coaxial mounted rod-shaped elements of the main shaft of elastic deformable body 1; It can be arranged on for example in sliding bearing or the linear bearing and with the rear end of skewback 2 and link to each other; Driving by servomotor moves forward and backward, and drives skewback 2 thus and in certain scope, moves forward and backward.Push rod component 3 comprises two push rods, and an end of these two push rods is fixedly connected with elastic deformable body 1 front end, and an other end keeps in touch with two inclined-planes up and down of skewback 2 respectively, and wholely keeps perpendicular with the axial direction of elastic deformable body 1.Like this, under the driving of pull bar 7, move forward and backward and drive skewback 2 and do together in the axially movable process at servomotor, push rod component 3 since with the effect of the inclined-plane generation power of skewback 2, the radial direction along elastic deformable body 1 produces skew thus.
As shown in Figure 4; Two push rods of push rod component 3 are made up of screw rod 15, locking nut 16 and steel ball 17 respectively; Wherein an end of screw rod 15 possesses threaded portion 18, is able to be locked and apply preload through being located at elastic deformable body 1 lip-deep locking nut 16; An other end is the face of cylinder that the end has centre bore, and steel ball 17 is spherical cap structure and is installed in this face of cylinder, and its spherical crown plane is used for keeping in touch with the inclined-plane of said skewback.Because the sphere of steel ball 17 can freely rotate in the screw rod centre bore; Make the plane of steel ball 17 to contact fully with the skewback plane adaptively; Improved contact stiffness thus; Can reduce wearing and tearing effectively when making steel ball 17 with skewback 2 relative motions, the even performance of its wearing and tearing simultaneously significantly improves its normal useful life and improves reliability.In addition, post rod parts 3 can assemble from the outside of elastic deformable body 1, can increase the design space of skewback 2 and pull bar 7 like this, thereby increases the intensity and the rigidity of skewback and pull bar, reaches the purpose that improves the boring bar integral rigidity.In a preferred embodiment, the middle part of the push rod of push rod component 3 also possesses threaded portion 19, and elastic deformable body 1 possesses respective threads part 20 in this position, and the engagement through between the two guarantees that push rod is in the inner further location of elastic deformable body.As shown in Figure 4, can the diameter of push rod middle part threaded portion 19 be set at the diameter greater than push rod end thread part 18, can guarantee that like this locking nut 16 more effectively is pressed on the surface of elastic deformable body 1.In another preferred embodiment; Can the threaded portion 19 at push rod middle part be set at and not exceed the corresponding threaded portion 20 that meshes of the inner institute of elastic deformable body; As shown in Figure 4; Threaded portion 19 is within the scope of threaded portion 20 fully, and the two ends up and down of threaded portion 19 have the length of L1 and L2 respectively apart from the two ends up and down of threaded portion 20, through this setting; Because the push rod dismounting difficulty of having avoided the screw thread distortion to cause can obtain the technique effect that maintains easily and avoid push rod component to lose efficacy.
When radial deflection takes place in push rod component 3; Such as above explanation ground; Eight elastic walls play the effect of hinge through self elasticity; Make the rear and front end as the elastic deformable body of boring bar main body can both relatively move in the radial direction on the whole thus, correspondingly, the automatic adjusting that realization boring bar and tool feeding position thereof directly make progress at cutter.
To specifically describe according to the preferred embodiment of the present invention with reference to Fig. 2 and Fig. 3 below and be arranged on a plurality of grooves at boring bar middle part and the elastic wall structure of corresponding formation, and elastic wall structure role process in boring bar and tool feeding position radiai adjustment process.As shown in Figure 2; On the cross section, A-A at elastic deformable body middle part; Along the radial direction of Elastic Cylindrical deformable body be respectively arranged with first groove 8 that is connected with the strain external surface, fully be arranged on elastic deformable body inner and and first groove 8 between keep certain intervals second groove 9, be arranged on elastic deformable body inner and and second groove 9 between keep certain intervals long three-flute 10, be arranged on elastic deformable body inner and and three-flute 10 between keep the 4th groove 11 of certain intervals, and be connected with elastic deformable body another one outer surface and and the 4th groove 11 between keep the 5th groove 12 of certain intervals.It is symmetrically arranged being positioned at the A-A cross section of elastic deformable body middle part diverse location and a plurality of grooves on the B-B cross section, so is provided with first groove to the, five grooves on the B-B cross section equally.Second groove to the, five grooves on two cross sections of A-A and B-B can be connected through the cannelure on the C-C direction respectively, only show the situation that is connected through cannelure 14 between two three-flutes among Fig. 2.Through a plurality of grooves as shown in Figure 2 are set, the compartment between the adjacent slot is because the elasticity of himself has formed the elastic wall structures 13 that amount to eight hinge effect respectively.Yet be to be understood that; Mode of grooving shown in Fig. 2 is also not exclusive; Those of ordinary skill in the art expects that easily the concrete set-up mode to these grooves changes or adjusts, as long as it constitutes eight elastic wall structures that play hinge effect at the middle part of elastic deformable body 1 at last.Perpendicular and when the middle part of elastic deformable body is divided into laterally zygomorphic two parts when the inner groove of elastic deformable body and cannelure 13, can realize further improvement to above-mentioned technique effect.
In a preferred embodiment, the elastic wall structure that forms on each cross section of the elastic deformable body distribution that is centrosymmetric, they are parallel to each other and perpendicular to the radial direction of elastic deformable body.Do in the process of radial deflection at push rod like this, the elastic wall structure can balancedly work up and down as the device of hinge-like, gets the radial deflection that elastic deformable body is also correspondingly kept in balance thus; In addition, the physical dimension of elastic wall under situation about being consistent, easy for calculation and adjust the thickness of each wall, thus be convenient to the integral translation effect of knife bar is controlled.The elastic wall thickness of structure can directly have influence on the automatic degree of regulation that boring cutter directly makes progress, and therefore in a preferred embodiment, the elastic wall thickness of structure is 0.3mm～3mm.More practice result shows that the elastic wall structure of this thickness range compared with prior art can realize more accurate radially the regulating automatically of boring bar, and guarantee rational boring bar rigidity and the maximum scope of replenishing.
Fig. 3 is the principle schematic of the role in boring bar and tool feeding position radiai adjustment process of the elastic wall structure shown in Fig. 2.As shown in Figure 3; When pull bar in the driving of servomotor for example when the coupled skewback of drive moves axially in elastic deformable body inside together down; Skewback is had an effect with two push rods that the last lower inclined plane that keeps with skewback keeps in touch, and promotes push rod thus and makes radial deflection.Because the middle part of elastic deformable body is formed with eight elastic wall structures; These elastic walls do in the process of radial deflection to play through the elasticity of self effect of hinge at push rod; Make the front end as the elastic deformable body of boring bar main body can relatively move in the radial direction on the whole thus; Correspondingly, realize knife bar and tool position automatic adjusting diametrically thereof.
Those skilled in the art will readily understand; The above is merely preferred embodiment of the present invention; Not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, be equal to and replace and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. can realize the radially self-regulating elastic boring bar of boring cutter for one kind, this elastic boring bar is by the elastic deformable body (1) as the boring bar main body, and is arranged on this elastic deformable body (1) inner skewback (2), push rod component (3) and pull bar (7) and constitutes, wherein:
The front end of said elastic deformable body (1) is used for being connected with the knife bar assembly (5) that boring cutter is housed; The rear end is used for and coaxial connection of boring dynamic head main spindle (6); The middle part of said elastic deformable body (1) is at its two cross section (A-A that are parallel to each other; B-B) be respectively arranged with a plurality of grooves on symmetrically, and the compartment between the groove on each cross section four elastic wall structures that play hinge effect have been formed;
Said skewback (2) is arranged on the front end inside of elastic deformable body (1), and possesses two inclined-planes up and down that are parallel to each other;
Said pull bar (7) links to each other with said skewback (2), is used under the driving of motor, driving skewback (2) and moves axially together;
Said push rod component (3) comprises two perpendicular push rods of axial direction with elastic deformable body (1); Their ends separately are fixedly connected with elastic deformable body (1) front end; An other end keeps in touch with two inclined-planes up and down of said skewback (2) respectively, drives skewback (2) at pull bar (7) thus and does together in the axially movable process radial deflection to take place.
2. elastic boring bar as claimed in claim 1 is characterized in that, the elastic wall structure that forms on each cross section of the said elastic deformable body distribution that is centrosymmetric, and they are parallel to each other and perpendicular to the radial direction of elastic deformable body.
3. according to claim 1 or claim 2 elastic boring bar is characterized in that said elastic wall thickness of structure is 0.3mm～3mm.
4. like any described elastic boring bar of claim 1-3; It is characterized in that; Said push rod form by screw rod, locking nut and steel ball and from outer to realize and being fixedly connected of elastic deformable body front end; One end of wherein said screw rod possesses threaded portion, is able to be locked and apply preload through being located at the lip-deep said locking nut of elastic deformable body, and an other end is the face of cylinder that the end has centre bore; Said steel ball is spherical cap structure and is installed in this face of cylinder, and its spherical crown plane is used for keeping in touch with said inclined-plane.
5. elastic boring bar as claimed in claim 4; It is characterized in that; The middle part of said push rod possesses threaded portion, and this threaded portion is used for being meshed with the inner pairing threaded portion of elastic deformable body, and its diameter is greater than the diameter of the threaded portion of said push rod end.
6. elastic boring bar as claimed in claim 5 is characterized in that, the threaded portion at said push rod middle part does not exceed the corresponding threaded portion that meshes of the inner institute of elastic deformable body.
7. like any described elastic boring bar of claim 1-6, it is characterized in that said pull bar is arranged in linear bearing or the sliding bearing and with said skewback (2) and links to each other, be used under the driving of motor, driving skewback (2) and move axially together.
8. like any described elastic boring bar of claim 1-6, it is characterized in that the gradient of said skewback is 1: 5～1: 50.
9. like any described elastic boring bar of claim 1-8, it is characterized in that said elastic deformable body for example is made up of the spring steel material, the inclined-plane of said skewback for example is made up of the carbide alloy material.
10. elastic boring bar as claimed in claim 1 is characterized in that said elastic boring bar also comprises protective cover, and this protective cover is fixed on the front end of elastic deformable body, and leaves with it such as be the gap about 1mm.
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| CN 201210082284 CN102615300B (en) | 2012-03-26 | 2012-03-26 | Elastic boring bar capable of realizing automatic adjustment for radial direction of boring cutter |
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| CN 201210082284 CN102615300B (en) | 2012-03-26 | 2012-03-26 | Elastic boring bar capable of realizing automatic adjustment for radial direction of boring cutter |
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| CN102962482A (en) * | 2012-10-26 | 2013-03-13 | 南通德玛瑞机械制造有限公司 | Extension boring carriage structure |
| CN103480873A (en) * | 2013-09-29 | 2014-01-01 | 大连机床(数控)股份有限公司 | Satellite expansion type tool |
| CN103934485A (en) * | 2014-05-07 | 2014-07-23 | 广西玉柴机器股份有限公司 | Microcartridge clamp |
| CN106224806A (en) * | 2016-08-31 | 2016-12-14 | 安徽芯瑞达电子科技有限公司 | A kind of auxiliary mould pasting LED lamp bar for tube inner wall |
| CN110238418A (en) * | 2019-05-08 | 2019-09-17 | 北京理工大学 | A kind of intelligent boring cutter bar compensated automatically and its compensation method |
| CN114192822A (en) * | 2021-12-23 | 2022-03-18 | 哈尔滨理工大学 | Boring bar with adjustable rigidity and method |
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| US6331093B1 (en) * | 1999-12-28 | 2001-12-18 | Ex-Cello Machine Tools, Inc. | Compensator for multi-tool boring bar |
| CN1364674A (en) * | 2002-02-05 | 2002-08-21 | 华中科技大学 | Elastic boring bar |
| CN2518625Y (en) * | 2002-02-05 | 2002-10-30 | 华中科技大学 | Parallelogram elastic boring bar |
| CN201880938U (en) * | 2010-12-10 | 2011-06-29 | 孙效 | Groove boring cutter |
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| CN102962482A (en) * | 2012-10-26 | 2013-03-13 | 南通德玛瑞机械制造有限公司 | Extension boring carriage structure |
| CN103480873A (en) * | 2013-09-29 | 2014-01-01 | 大连机床(数控)股份有限公司 | Satellite expansion type tool |
| CN103934485A (en) * | 2014-05-07 | 2014-07-23 | 广西玉柴机器股份有限公司 | Microcartridge clamp |
| CN106224806A (en) * | 2016-08-31 | 2016-12-14 | 安徽芯瑞达电子科技有限公司 | A kind of auxiliary mould pasting LED lamp bar for tube inner wall |
| CN110238418A (en) * | 2019-05-08 | 2019-09-17 | 北京理工大学 | A kind of intelligent boring cutter bar compensated automatically and its compensation method |
| CN110238418B (en) * | 2019-05-08 | 2020-09-22 | 北京理工大学 | Intelligent boring cutter bar with automatic compensation function and compensation method thereof |
| CN114192822A (en) * | 2021-12-23 | 2022-03-18 | 哈尔滨理工大学 | Boring bar with adjustable rigidity and method |
| CN114192822B (en) * | 2021-12-23 | 2022-08-26 | 哈尔滨理工大学 | Boring bar with adjustable rigidity and method |
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