CN100473482C - Quick-changing high-speed boring cutter - Google Patents

Quick-changing high-speed boring cutter Download PDF

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Publication number
CN100473482C
CN100473482C CNB2005101014695A CN200510101469A CN100473482C CN 100473482 C CN100473482 C CN 100473482C CN B2005101014695 A CNB2005101014695 A CN B2005101014695A CN 200510101469 A CN200510101469 A CN 200510101469A CN 100473482 C CN100473482 C CN 100473482C
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knife bar
hole
screw
quick
pin
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CN1966191A (en
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张新添
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Abstract

The invention relates to a high-speed boring blade without balance correction, wherein it is formed by main body of blade rod and front blade rod; the front blade rod and combined boring blade need dynamic balance correction, to hold the dynamic balance when using different front blade rods, to realize free dynamic balance correction; one end of main body has eccentric axial hole, to axial connect the sheath axle of front blade rod; said sheath axle has one V-shaped annular groove; the main body relative to said V-shaped annular groove has fixing screw hole and positioning screw hole; said fixing screw hole and positioning screw hole have eccentric positioning grooves relative to the positioning pins of fixing bolt and flexible fixing bolt, to avoid error installment; the flexible fixing block in positioning screw hole compressed by screw pushes the front blade rod upwards, to contact the rotation axle, and via the fixing bolt and screw, combines the front blade rod and main body radial.

Description

The quick-changing high-speed boring tool
Technical field
The invention relates to a kind of boring tool, be meant a kind of high rotating speed fine setting boring tool of quick change lock solid structure especially.
Background technology
General known adjusting bore a hole size adjustable boring tool 10 as shown in figure 20, then must be when size is bored a hole in change by adjusting screw rod 11 transmission spiral shell seat 12 and knife bars 13, and then the position of tool tip of change disposable type blade 14, reach the purpose of adjusting the size of boring a hole, in case but the dynamic balancing of boring tool must be readjusted in the position of knife bar 13 when changing, avoid at a high speed rotation bore a hole operation the time produce non-proper circle the hole, by the dynamic balance weight structure, comprise a screw rod 15 and a balancing weight 16, adjust the position of balancing weight 16, and place calibration on the dynamic balancing machine, therefore must expend the dynamically balanced time of adjusting, more need to improve the proper circle amount of testing of product, this will spend considerable correction time, and then improves manufacturing cost, therefore some dealer reduces the tolerance value in non-proper circle hole with lower rotary speed (about 2000 rev/mins), but relatively slack-off the and surface roughness value of process velocity will be bigger, and lustrous surface also reduces, and this is its main shortcoming.
Generally commonly use adjustable boring tool because of structural design causes each fine setting must adjust the dynamic balancing that balancing weight resets boring tool simultaneously, quite expend the shortcoming that also can reduce production capacity man-hour, and manufacturing cost height, relative price height, increase user's shortcomings such as expenditure cost on foot, remain to be improved.
Summary of the invention
The invention provides a kind of quick-changing high-speed boring tool, when changing the cutter of the different sizes of boring a hole, need not remake dynamically balanced correction, and be provided with in lock solid structure and prevent misloading and to replace fast function, and has a design of safe limit shelves dot structure, avoid locking screw not lock, can not damage the structure of cutter.
For achieving the above object, solution of the present invention is:
A kind of quick-changing high-speed boring tool, wherein: mainly comprise a knife bar body, one end of this knife bar body is to be made as the awl bar, the end face of end is established the eccentric axis hole of a trace in addition, establish a locking screw on the axostylus axostyle limit of this axis hole, and depart from and establish one on the knife bar body of locking screw one suitable angle and locate screw; One gim peg is placed in this locking screw; One locking screw is fixed in the locking screw the preceding knife bar that locks in order to the packing gim peg; Ccontaining in the one elastic force gim peg, this positioning screw hole, and the solid location screw of spiral shell; The front end of this elastic force gim peg is by line of rabbet joint cutting formation flexible elasticity arm of a tool; Knife bar before one, this preceding knife bar, its front end is provided with tool rest, and the disposable type blade that locked, preceding knife bar end are in addition established a socket axle, and this socket axle is that cover is inserted in the axis hole of knife bar body.
Described locking screw is provided with a positioning runner that is eccentric in the screw center at least.
Described positioning screw hole is provided with a positioning runner that is eccentric in the screw center at least.
Described quick-changing high-speed boring tool is provided with a circular groove in the appropriate location of the end face of knife bar body, and two extreme end of this circular groove form two limit retaining points.
Two round pins are implanted in appropriate location in the inner groovy of described this knife bar body end face, form two limit retaining points.
The ring diametrical position of the corresponding limit retaining point in the top of knife bar is implanted a round pin before described, forms backing pin.
Described gim peg adjacent end side is established one and run through and the pin-and-hole of position deviation central shaft, and is ccontaining for an alignment pin in this pin-and-hole.
Described elastic force gim peg adjacent end side is established one and run through and the pin-and-hole of position deviation central shaft, and is ccontaining for an alignment pin in this pin-and-hole.
After adopting such scheme, the present invention mainly is that the quality with the preceding knife bar of interchangeable and the different sizes of boring a hole is made as unanimity, and calibration various before the barycenter of knife bars overlap with the centre of form and reach dynamic balancing, and calibration dynamic balancing once more after the assembling of preceding knife bar and knife bar body, reach and exempt to do dynamically balanced calibration during knife bar before exchanging; The invention provides a kind of fine setting Hole boring knife, mainly be that the knife bar rotation makes the disposable type blade produce the fine setting effect before utilizing micro-eccentric center principle collocation, mainly be that the knife bar rotation makes the disposable type blade produce the fine setting effect before utilizing micro-eccentric center principle collocation, mainly be to establish a trace (about 0.1mm in the end face of knife bar body, the need of visual working environment and become) eccentric axis hole, and it is ccontaining for the socket axle of a preceding knife bar, V-ring groove set on the socket axle is corresponding with locking screw and positioning screw hole that the knife bar body radially is provided with, and by the fixing preceding knife bar of the pilot pin lock of locking screw and tool arc end centre, knife bar and knife bar body are radially locked axial reaching all highly stablely before the order, it is good to reach the locking rigidity, the preceding knife bar rotation that tool mat trace off-centre is pivoted, be able to trace and change the distance that house fills formula insert tip and pivot, reach the purpose of finely tuning the size of boring a hole.
The present invention is by the eccentric axis hole of trace, and knife bar can change the edge of a knife tip of disposable type blade and the trace skew of pivot before the rotation, is applied on the Hole boring knife of the size of fixedly boring a hole, and can produce the positive and negative size correction of boring a hole to trace; Knife bar was subjected to elastic force gim peg replacing and forward up before the locking and fastening system of this knife bar body and preceding knife bar made with the elastic force gim peg of tool elasticity arm, and the locking of collocation gim peg, reached the effect of perfect rigidity locking one; The preceding knife bar quality of the various sizes of boring a hole of the present invention is made as unanimity and whole dynamic balancing calibration in addition, dynamic balancing can not change moving along with the displaced page of preceding knife bar, therefore when size is bored a hole in fine setting or during the preceding knife bar of the different sizes of boring a hole of displacement and need not reset dynamic balancing, practicality is splendid, simplifies the work flow of boring a hole; And the design that is provided with limit retaining point in the knife bar body; even preceding knife bar does not lock and the rotation that starts the machine; before knife bar rotate to the minimum size positions of boring a hole, can avoid disposable type blade bump footpath and not have the anxiety of hitting cutter and consider, reach the safety design that cutter shaft does not lock and can protect the disposable type blade.
Description of drawings
Fig. 1 is a three-dimensional system diagram of the present invention;
Fig. 2 is an assembled sectional view of the present invention;
Fig. 3 is the assembled sectional view of looking closely of A-A section of the present invention;
Fig. 4 is the stereogram of knife bar body of the present invention;
Fig. 5 is the stereogram of gim peg of the present invention;
Fig. 6 is the stereogram of elastic force gim peg of the present invention;
Fig. 7 is the partial enlarged drawing of knife bar before the elastic force gim peg of the present invention ejection;
Fig. 8 is the present invention
Figure C200510101469D00051
The stereogram of preceding knife bar;
Fig. 9 is the present invention
Figure C200510101469D00052
The stereogram of preceding knife bar;
Figure 10 is the present invention
Figure C200510101469D00053
The stereogram of preceding knife bar;
Figure 11 is the schematic diagram that position of tool tip of the present invention makes zero;
Figure 12 is that position of tool tip of the present invention is finely tuned the forward greatest limit schematic diagram of boring a hole;
Figure 13 is that position of tool tip of the present invention is finely tuned the negative sense minimum level limit schematic diagram of boring a hole;
Figure 14 is a forward fine setting limit schematic diagram of the present invention;
Figure 15 is a negative sense fine setting limit schematic diagram of the present invention;
Figure 16 is the enforcement illustration of locking and fastening system of the present invention;
Figure 17 is the enforcement illustration of round pin limit retaining point of the present invention;
Figure 18 is a round pin limit retaining point forward fine setting limit schematic diagram of the present invention;
Figure 19 is a round pin limit retaining point negative sense fine setting limit schematic diagram of the present invention;
Figure 20 commonly uses the plane of adjustable boring tool.
The primary clustering symbol description
10 adjustable boring tools 11 are adjusted screw rod 12 spiral shell seats 13 knife bars
14 disposable type blades, 15 screw rods, 16 balancing weights, 20 knife bar bodies
21 awl bars, 22 axis holes, 23 locking screws, 231 locking screws
232 positioning runners, 24 positioning screw holes, 241 set screws, 242 positioning runners
The 25 end conical surfaces, 251 scales, 26 inner groovies, 270 circular grooves
271, knife bar 31 tool rests before 272,273,274 limit retaining point 30
32 disposable type blades, 33 socket axle 34V shape annular grooves, 35 backing pins
40,60 gim pegs, 41,52 pin-and-holes, 42,53 alignment pins, 61 spring shims
50,70 elastic force gim pegs, 51,71 elasticity arms
The specific embodiment
See also shown in Fig. 1,2,3,4, knife bar 30 was formed before quick-changing high-speed boring tool of the present invention mainly comprised a knife bar body 20 and one; Wherein:
One end of knife bar body 20 is to be provided with awl bar 21, must with the main shaft socket of machine-tool, the end face of end is established the eccentric axis hole 22 of a trace in addition, establish a locking screw 23 on the axostylus axostyle limit of this axis hole 22, do not have a location screw 24 in the locking screw 23 on the knife bar body 20 of ccontaining one suitable angle, positioning screw hole 24 is provided with a positioning runner 242 that is eccentric in the screw center at least, a ccontaining elastic force gim peg 50 in this positioning screw hole 24, and the solid location screw 241 of spiral shell, must delineate scale 251 (as shown in Figure 4) on the end conical surface 25 of knife bar body 20 end faces, appropriate location in the end face of knife bar body 20 is provided with about 270 a ° circular groove 270, and two extreme end of this circular groove 270 form two limit retaining points 271,272;
Preceding knife bar 30, its front end is provided with tool rest 31, disposable type blade 32 is locked, preceding knife bar 30 end is in addition established a socket axle 33, this socket axle 33 is that cover is inserted in the axis hole 22 of knife bar body 20, and corresponding locking screw 23 places establish a V-ring groove 34, and elastic force gim peg 50 holds to go in the V-ring groove 34, implant a backing pin 35 on the axostylus axostyle of the corresponding limit retaining point 271,272 in the top of this preceding knife bar 30.
See also shown in Figure 5, gim peg 40, its front end face is to be made as concaved circular cambered surface, this concaved circular cambered surface is identical with the circumferential curvature of the socket axle 33 of front end axle 30, the end face of gim peg 40 is able to and socket axle 33 identical contacts, these gim peg 40 adjacent end sides are established one and run through and the pin-and-hole 41 of position deviation central shaft, and are ccontaining for alignment pins 42 in this pin-and-hole 41.
See also shown in Figure 6, elastic force gim peg 50, its front cutting one line of rabbet joint and form the flexible elasticity arm 51 of a tool, and the fulcrum of elasticity arm 51 is to be positioned at the top, these elastic force gim peg 50 adjacent end sides are established one and run through and the pin-and-hole 52 of position deviation central shaft, and are ccontaining for alignment pins 53 in this pin-and-hole 52.
§ knife bar body 20 locks with the combination of preceding knife bar 30:
See also shown in Fig. 2,3,7, elastic force gim peg 50 is subjected to the spiral shell of set screw 241 and then packing V-ring groove 34 gradually, set screw 241 is more urgent, elastic force gim peg 50 is subjected to pressing near and makes the cantilever distortion produce spring energy-storage, this cantilever is that the center produces compression with the cantilever fulcrum, and the cantilever fulcrum is that the center produces the spring energy-storage that bullet is up put, produce the strength of up ejection by spring energy-storage, preceding knife bar 30 be subjected to elastic force gim peg 50 ejection and up with 20 driving fits of knife bar body; Compel solid one by 231 ejection gim pegs 40 of the locking screw in the locking screw 23 and preceding knife bar 30 again, because the cancave cambered surface of steady pin 40 front ends is identical with the curvature of preceding knife bar 30, so can make gim peg 40 and preceding knife bar 30 closely compels to be solidified as a whole, before can making knife bar 30 and knife bar body 20 axially (Z axle) with radially lock together fully, form the rigidity of one.
The manufacture method of § dynamic balancing unanimity:
The present invention for make the consistent and change of dynamic balancing bore a hole size change before during knife bar 30, the dynamic balancing of boring tool will can not change, and must reach by following step;
1, the quality of preceding knife bar is made as unanimity:
Before knife bar 30 bore a hole size not simultaneously the position of its tool rest 31 must change, the therefore preceding knife bar 30 of the different sizes of boring a hole, the preceding knife bar 30 shown in Fig. 8,9,10 is to be the size of boring a hole
Figure C200510101469D00071
And
Figure C200510101469D00072
The size and the quality thereof at the big more tool rest of the size of boring a hole 31 positions are also big more, for asking the stability when rotating at a high speed, the bore a hole quality of preceding knife bar 30 of size of difference must be made as identically, and therefore the quality and the shape of the preceding knife bar 30 of the different sizes of boring a hole must be done correction, for example shown in Figure 8
Figure C200510101469D00073
The size at tool rest 31 positions less, revise quality but tool rest must increase size to the position of 33 on socket axle more than 31, shown in Figure 9 in addition
Figure C200510101469D00074
Tool rest 31 its sizes less and revise its whole quality, make
Figure C200510101469D00076
With
Figure C200510101469D00077
Preceding knife bar 30 identical in quality, and shown in Figure 10
Figure C200510101469D00078
Knife bar 30 before the Mm, therefore the size maximum of its tool rest 31 must reduce tool rest is revised integral body to the size at the position of 33 on socket axle more than 31 quality, feasible With
Figure C200510101469D000710
The quality of preceding knife bar 30 is all identical; Aforementioned only act
Figure C200510101469D000712
With
Figure C200510101469D000713
Case, all secret palpus of quality of its preceding knife bar 30 of size of boring a hole that all can be made such as is identical or in its allowed margin of tolerance.
2, the barycenter of knife bar overlaps with the centre of form before the correction:
The quality of the preceding knife bar 30 of all sizes of boring a hole all is made as identical or and then then is that the barycenter of knife bar 30 must overlap with position of form center before proofreading and correct in the margin of tolerance that it is allowed the time, knife bar 30 can not produce the facts of eccentric shaking before so can making preceding knife bar 30 when rotating (more than 2000 rev/mins) at a high speed, the bore a hole preceding knife bar 30 of size of difference connects and must proofread and correct barycenter and overlap with the centre of form, this technology that overlaps can be finished by computer drawing software and the anti-collocation of dynamic balancing machine, both preceding knife bar of production dynamic balancing unanimity in a large number after the most original model is finished correction.
3, preceding knife bar and knife bar body combination post-equalization dynamic balancing:
Preceding knife bar 30 is must proofread and correct dynamic balancing again after system makes up with knife bar body 20 by locking, because knife bar body 20 itself has the eccentric axis hole 22 of a trace, and the collocation locking is every part of system, its whole dynamic balancing must be recomputated and calibration, and this also must be finished by computer drawing software and dynamic balance calibration machine once the technology of proofreading and correct.
Therefore after whole boring tool is finished uniform quality and dynamic balance calibration suddenly by above-mentioned 3 napexes, when rotating at a high speed, will highly stable and not have the facts that off-centre is rocked, when the preceding knife bar 30 of various different sizes is all with its centre of form and overlaps exchanging when using its whole barycenter, and the preceding knife bar 30 of rotation is finely tuned, and dynamic balancing also is consistent when boring a hole size, the circular hole out of roundness precision that boring tool processed of rotation is very high at a high speed, meet user's expectation fully, prior thing user change the different sizes of boring a hole before need not do dynamically balanced correction during knife bar 30, save the dynamically balanced time of calibration, this is the most important design of the present invention, break through the every adjustment of traditional adjustable boring tool bore a hole size then must the dynamically balanced shortcoming of calibration, the design of this novelty is to break through unprecedented innovative design.
The § combination is easy, the design of tool fool proof:
See also Fig. 1,2,3, shown in 4, the end of gim peg 40 of the present invention and elastic force gim peg 50 is provided with the eccentric alignment pin 42 that is provided with, 53, and on the locking screw 23 of knife bar body 20 and positioning screw hole 24, also be provided with the relatively positioning runner 232 at screw center, 242, and the pore size difference of locking screw 23 and positioning screw hole 24, relatively gim peg 40 is also different with the diameter of elastic force gim peg 50, therefore not having the wrong anxiety of dress considers, and the positioning runner 231 that utilizes off-centre, 241 designs, elastic force gim peg 50 do not have adorn anti-misgivings (elasticity arm 51 fulcrums of elastic force gim peg 50 must be positioned at the top, can produce the function of upwards compeling the top), this double design can prevent that the assembly crewman from misloading taking place or adorn that anti-anxiety is considered and the awkward situation that do not cause the function of locking and fastening system to bring into play when assembling.
The § size fine setting limit range explanation of boring a hole:
1, the position of making zero: seeing also shown in Figure 11ly, is the position that point of a knife size of the present invention makes zero, and axis hole 22 is off center axle left sides, the opposite side of screw 23 promptly locks, and position of tool tip is the positive north that are positioned at 90 degree, thus position of tool tip to pivot 0 be the radius of gyration apart from r, this is graphic be for
Figure C200510101469D0008150628QIETU
The Hole boring knife embodiment of 25mm, so position of tool tip is the position of making zero of the size of boring a hole.
2, the maximum forward fine setting size of boring a hole: see also shown in Figure 12ly, position of tool tip turn 90 degrees towards counterclockwise revolving, and position of tool tip is positioned at the direction of axis hole 22 skews, and the therefore radius R=side-play amount e+ cutter shaft radius of turn r1 that bores a hole is with this graphic embodiment
Figure C200510101469D0008150628QIETU
25mm Hole boring knife, side-play amount e are 0.1mm, and cutter shaft radius of turn r1 is 12.5mm, and the radius R of boring a hole equals 12.6mm, and the full-size of boring a hole is 25.2mm.
3, minimal negative is to the fine setting size of boring a hole: see also shown in Figure 13, position of tool tip, clockwise direction go to the graphic right side (east) location, promptly be partial to 0 degree direction, because of the center (and center of axis hole 22) of cutter shaft 30 the left side of pivot 0 (and pivot of knife bar body 20) together, therefore the size of boring a hole is promptly dwindled, the radius R of boring a hole=cutter shaft radius of turn r1-side-play amount e, and graphic with this is example, radius R=the i2.5mm-0.1=12.4mm that bores a hole, the size of boring a hole is
Figure C200510101469D0008150628QIETU
24.8mm promptly negative sense has dwindled 0.2mm.
Therefore by above-mentioned explanation, side-play amount e of the present invention is 0.1mm, can make the size of boring a hole positive and negative to the fine setting that increases or the reduce 0.2mm size of boring a hole, dark tool novelty and practicality are splendid.
The safety design that § limit retaining accounts for:
See also shown in Fig. 1,2, before knife bar 30 and knife bar body 20 be to lock by locking screw 231 and set screw 241 packing gim pegs 40 and elastic force gim peg 50, if there is not the high guard station of limit retaining point, when the operator forgets locking after size is bored a hole in fine setting, will cause promptly stop the rotation behind the disposable type blade contact workpiece and before making knife bar 30 produce the fine setting displacement, cause the 32 bump work of disposable type blade and burst apart; See also shown in Figure 14,15, it is rotating range for backing pin 35, be the fine setting scope of boring tool, Figure 14 is forward fine setting limiting figure, Figure 15 is negative sense fine setting limiting figure, when increase of boring tool forward or negative sense minimizing inching, two limit retaining point 271,272 of circular groove 270 all can be as the limit point of safes of backing pin 35; When forgeing locking locking screw 231 and set screw 241 after the size fine setting, because of being subjected to resistance preceding knife bar 30 is stopped the rotation after the disposable type blade 32 contact work of current knife bar 30, when the knife bar body 20 that continues to turn clockwise will make the limit retaining point 271 bump backing pins of negative sense change, preceding knife bar 30 moves towards negative sense is little, the position of point of a knife will be slightly less than the size of being bored a hole and can not clash into disposable type blade 32, for example desires to bore a hole
Figure C200510101469D00091
The workpiece of size, the circular hole of workpiece should be machined to
Figure C200510101469D00092
And the point of a knife size of preceding knife bar 30 contracts to minimum
Figure C200510101469D00093
And by limit backing pin 271 interlock backing pins 35 and synchronous knife bar 30 before the interlock, position of tool tip remains on minimum cutting size place, so disposable type blade 32 can't striking work, protects the safety of disposable type blade 32.
The embodiment of § limit retaining point
Aforementioned limit retaining point 271, the 272nd, with the embodiment of two extreme end of about 270 ° circular groove 270, other sees also Figure 16, shown in 17, be to become the Application Example of limit retaining point to implant round pin, as shown in the figure, two round pins are implanted in appropriate location in knife bar body 20 end faces, this round pin promptly forms two limit retaining points 273,274, the limit retaining point 271 of its function and circular groove 270,272 is identical, see also Figure 18, shown in 19, it is rotating range for backing pin 35, be the fine setting scope of boring tool, Figure 18 is forward fine setting limiting figure, Figure 19 is a negative sense fine setting limiting figure, when increase of boring tool forward or negative sense minimizing inching, and two limit retaining point 273,274 also can be as the limit point of safes of backing pin 35; When forgeing locking locking screw 231 and set screw 241 after the size fine setting; because of being subjected to resistance preceding knife bar 30 is stopped the rotation behind disposable type blade 32 contact workpieces of current knife bar 30; the knife bar body 20 that continues to turn clockwise will make the limit retaining point 273 bump backing pins 35 (as shown in figure 19) of negative sense; and preceding knife bar 30 rotations of interlock synchronously; but in 20 rotations of knife bar body; preceding knife bar 30 moves towards negative sense is little; the position of point of a knife will be slightly less than the size of being bored a hole and can not clash into disposable type blade 32, the safety of protection disposable type blade 32.
The embodiment of § locking and fastening system:
See also shown in Figure 16, it is the implementation of an application example of locking and fastening system of the present invention, the locking screw 23 of this knife bar body 20 and positioning screw hole 24 there is no the design of positioning runner, only be simple and the different screw of diameter, relatively this gim peg 60 and elastic force gim peg 70 also do not have the design of alignment pin, this elastic force gim peg 70 is only had a design of front end elasticity arm 71, the fool proof assembling is reached by the design of different screw hole dimensions, also can reach aforementioned fixing inspection 60 and the elastic force gim peg 70 of making closely compels to be solidified as a whole with preceding knife bar 30, feasible preceding knife bar 30 and knife bar body 20 are at axial (Z axle) and radially lock together the rigidity of formation one fully.
Be installed with a spring shim 61 in gim peg 60 rear ends in addition, packing by set screw 231, make spring shim 61 revolve adding an elastic force in pilot pin 60 and oppositely be threaded onto on the set screw 231, so, pilot pin 60 will have locking function with set screw 231, can not produce the anxiety that gets loose and consider, make that the institute of locking and fastening system is powerful and more attain perfection because of processing caused vibrations.
In sum, no matter fine setting Hole boring knife structure of the present invention is that the design on the safety of using is comprehensive, the design prevention lock screw of limit retaining point is not locked and is protected the disposable type blade to avoid striking work, and the collocation of gim peg, elastic force gim peg and screw is compeled solid, produce the locking that axially reaches radially, and having shockproof and locking function, the combination of preceding knife bar and knife bar body has the fool proof design of anti-misloading; When boring tool was changed difference again and bored a hole the preceding knife bar of size in addition, calibration dynamic balancing again waited the design of multinomial progressive and novelty, good and the dark tool novelty of practicality, the market competitiveness is strong, really can meet the application important document of patent of invention, files an application in the whence in accordance with the law.

Claims (8)

1, a kind of quick-changing high-speed boring tool, it is characterized in that: mainly comprise a knife bar body, one end of this knife bar body is to be made as the awl bar, the end face of end is established the eccentric axis hole of a trace in addition, establish a locking screw on the axostylus axostyle limit of this axis hole, and depart from and establish one on the axostylus axostyle of locking screw one suitable angle and locate screw;
One gim peg is placed in this locking screw;
One locking screw is fixed in the locking screw the preceding knife bar that locks in order to the packing gim peg;
Ccontaining in the one elastic force gim peg, this positioning screw hole, and the solid location screw of spiral shell; The front end of this elastic force gim peg is by line of rabbet joint cutting formation flexible elasticity arm of a tool;
Knife bar before one, this preceding knife bar, its front end is provided with tool rest, and the disposable type blade that locked, preceding knife bar end are in addition established a socket axle, and this socket axle is that cover is inserted in the axis hole of knife bar body.
2, quick-changing high-speed boring tool as claimed in claim 1 is characterized in that: this locking screw is provided with a positioning runner that is eccentric in the screw center at least.
3, quick-changing high-speed boring tool as claimed in claim 1 is characterized in that: this positioning screw hole is provided with a positioning runner that is eccentric in the screw center at least.
4, quick-changing high-speed boring tool as claimed in claim 1 is characterized in that: the appropriate location in the end face of knife bar body is provided with a circular groove, and two extreme end of this circular groove form two limit retaining points.
5, quick-changing high-speed boring tool as claimed in claim 1 is characterized in that: two round pins are implanted in the appropriate location in the inner groovy of this knife bar body end face, form two limit retaining points.
6, quick-changing high-speed boring tool as claimed in claim 5 is characterized in that: the ring diametrical position of the corresponding limit retaining point in the top of preceding knife bar is implanted a round pin, forms backing pin.
7, quick-changing high-speed boring tool as claimed in claim 1 is characterized in that: this gim peg adjacent end side is established one and run through and the pin-and-hole of position deviation central shaft, and is ccontaining for an alignment pin in this pin-and-hole.
8, quick-changing high-speed boring tool as claimed in claim 1 is characterized in that: this elastic force gim peg adjacent end side is established one and run through and the pin-and-hole of position deviation central shaft, and is ccontaining for an alignment pin in this pin-and-hole.
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CN104526384A (en) * 2014-12-23 2015-04-22 苏州欧美克合金工具有限公司 Numerical control tool handle
CN105149623A (en) * 2015-06-29 2015-12-16 东莞市铁真机械有限公司 Combined-type multifunctional boring cutter
CN105345050A (en) * 2015-11-10 2016-02-24 宁波市精恒凯翔机械有限公司 Adjustable precise boring cutter
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