CN102398052A - Back Boring Cutting Tool - Google Patents
Back Boring Cutting Tool Download PDFInfo
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- CN102398052A CN102398052A CN2011100581909A CN201110058190A CN102398052A CN 102398052 A CN102398052 A CN 102398052A CN 2011100581909 A CN2011100581909 A CN 2011100581909A CN 201110058190 A CN201110058190 A CN 201110058190A CN 102398052 A CN102398052 A CN 102398052A
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- cutter
- main shaft
- guiding sleeve
- cutting tool
- bore hole
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Abstract
Provided is a back boring cutting tool (11), comprising a main shaft (12) which, extending along the axial direction, is provided with a holding tool at the rear end along the axial direction, a cutter which is supported to the front end along the axial direction of the main shaft in a rotary manner and designed as a reversely-placed accepting position along the main shaft and a protruding position relatively vertical to the main shaft, and a guide sleeve (16) which, shaped as a cylinder, is arranged at the periphery of the main shaft in a relative rotary manner; and a window part (28) arranged at the side surface of the cylinder body, wherein the cutter (13) is covered at a first rotary position along the circumferential direction, thereby keeping the cutter (13) at the accepting position; and the cutter (13) is exposed outside the window part (28) at a second rotary position along the circumferential direction, thereby making the cutter axially protrude outward from the window part and arranged at the protruding position.
Description
Technical field
The present invention relates to a kind of cutting element that is mounted to the fixing tool (holder) of lathe (machine tool); Especially after relating to a kind of following hole that is inserted into workpiece (work), cutter is haunted and the rear side in hole down bestowed the back boring cutting tool of back of the body bore hole (borehole) processing.
Background technology
Back of the body bore hole is processed as (the Numerical Control with NC; Numerical Control) processing machine etc. is pre-formed the surface of running through workpiece and the following hole at the back side; The back of the body bore hole axle (arbor) of the fixing tool that is installed in lathe is inserted into the following hole of workpiece from face side; The front end of back of the body bore hole axle is outstanding from the back side of workpiece; Cutter is outstanding towards radial dilatation from the front end of back of the body bore hole axle, and bore hole is bestowed at the back side of workpiece.After the back of the body bore hole process finishing, cutter is submerged to the front end of back of the body bore hole axle, extract back of the body bore hole axle from following hole out.
In this back of the body bore hole processing, automatically to implement the existing various technology of the technology of haunting of cutter.For example, japanese kokai publication hei 11-156612 communique (patent documentation 1) is a drive source with the pressure of cooling fluid, makes cutter outstanding from the axle leading section towards radial outside, or cutter is submerged towards the radially inner side of axle leading section.
Patent documentation 1: japanese kokai publication hei 11-156612 communique.
Summary of the invention
(problem that invention will solve)
Yet; Like said prior art; Owing to the pressure that uses cooling fluid make back of the body bore hole axle that cutter comes in and goes out need with hydraulic pressure be directed to tool interior cylinder barrel (cylinder) chamber, hydraulic pressure is converted to straight-line piston and links the bar (rod) etc. that piston and cutter make the cutter action, so complex structure and cost height.
Because above-mentioned problem, the object of the present invention is to provide a kind ofly can make cutter towards the back boring cutting tool that radially haunts with simple structure.
(technical scheme of technical solution problem)
In order to reach purpose, back boring cutting tool of the present invention possesses and has: main shaft (mainshaft) extend along axis, and the axis direction rearward end has the inserted-shape of the fixing tool that can be mounted to lathe; Cutter is supported on the axis direction leading section of main shaft with rotating mode, and is set as collecting position of putting upside down along main shaft and the extrusion position that erects with respect to main shaft; Suppress member, cutter is rotated erect and suppress to extrusion position; And guiding sleeve (guide sleeve); For can counterrotating mode to be arranged on the cylindrical body of the periphery of main shaft; And has window portion in the side of cylindrical body; Through covering cutter and cutter remained on collecting position at Zhou Fangxiang one side's the 1st position of rotation, and through the 2nd position of rotation Zhou Fangxiang the opposing party make cutter from window portion expose make cutter from window portion towards radial outside the outstanding extrusion position that is set as.
According to the present invention, owing to cutter is haunted with the guiding sleeve that can counterrotating mode be arranged on the periphery of main shaft, therefore need not complicated mechanism, and help reducing cost.
In the back of the body bore hole processing of prior art; Usually selecting makes the outside dimension of back boring cutting tool more smaller than the internal diameter size in the following hole of workpiece; Avoiding between the outer diametric plane of the inner peripheral surface in following hole and back boring cutting tool, producing the situation of rotational resistance, and can make back of the body bore hole axle easily insert or extract out in descending the hole.The generation bore hole added the rotational resistance in man-hour between the outer peripheral face of inner peripheral surface that descends the hole and back of the body bore hole axle yet had in the past, or the situation that welds.
For solving above-mentioned problem, with regard to embodiment more preferably, also possess low friction part, be arranged on the zone that contact with the following hole of the workpiece that will process at least on the outer peripheral face of guiding sleeve, to lower and the friction of workpiece.According to this embodiment; Because the outer peripheral face at the guiding sleeve that belongs to cylindrical body is provided with low friction part; Therefore in the following hole of back boring cutting tool being inserted workpiece and carry on the back bore hole and add man-hour, the rotational resistance between the inner peripheral surface that can suitably reduce hole down and the outer peripheral face of guiding sleeve.
In addition, low friction part is arranged on the zone that contacts with the following hole of the workpiece that will process at least of the outer peripheral face of guiding sleeve.As an example, low friction part spreads all over the full week of guiding sleeve outer peripheral face and is provided with, and is preferably to be arranged on the axis direction zone of rear end side more than window portion.
With regard to an embodiment, low friction part is formed on the surface-treated layer on the outer peripheral face of guiding sleeve.Surface-treated layer is ion Plasma Nitriding Treatment, DLC (Diamond Like Carbon for example; Class brill carbon) coating processing, TiN (titanium nitride) coating processing and mirror-like milled processed etc.
With regard to other embodiment, low friction part is the pipe component that is installed on the outer peripheral face of guiding sleeve.Pipe component also can be chimeric be fixed on the guiding sleeve periphery and with the guiding sleeve together rotate, or also can be relative rotation be entrenched in freely the guiding sleeve periphery.
When cutter is haunted, the guiding sleeve by the operator manually with respect to main axis rotation, or action rotation relatively automatically that also can be through lathe.With regard to embodiment more preferably, it is poor with the section of the surperficial butt of workpiece that the guiding sleeve is included in when advancing, and be provided with the fender in order to the bump of mitigation and workpiece in the section difference.According to this embodiment, when making back boring cutting tool insert the following hole pass to two workpiece from the surface, and during with section difference pushing butt to workpiece surperficial, can't damage the surface of workpiece.And, by lathe main shaft or guiding sleeve are rotated relatively, can cutter be haunted whereby.
Yet after back of the body bore hole process finishing, cutter is housed in collecting position, yet cutting powder when engaging-in etc., also may not necessarily submerge to collecting position.So, when extracting back boring cutting tool out, have the cutter bump and carry on the back the bore hole perforate and make the damaged doubtful anxiety of back boring cutting tool.Therefore, with regard to embodiment more preferably, main shaft has: main portion; Cutter is supported in the cutter support portion; And linking part, connect main portion and cutter support portion; Linking part also can constitute: excessive remove both connection when being pulled away from power applying between main portion and the cutter support portion.According to this embodiment; When automatically cutter being haunted; Even just in case cutter does not fully submerge to collecting position; And more or less from window portion towards external diameter when side-prominent, in when back boring cutting tool is extracted in the hole out down, cutter can be with the back side bump of workpiece and main the excessive power that is pulled away from desiring to be pulled away from main shaft with the cutter support portion can be applied to linking part.Whereby, main of main shaft can separate with the cutter support portion, and cutter can break away from from main shaft.Therefore, can prevent the serious damage of back boring cutting tool or workpiece.
Though main shaft does not limit with the binding structure of guiding sleeve especially; But with regard to embodiment more preferably; Inner peripheral surface or outer peripheral face one side of main shaft of guiding sleeve, be formed with the bar ditch that extends towards Zhou Fangxiang, and the opposing party of the outer peripheral face of inner peripheral surface of guiding sleeve or main shaft; Be formed with the projection that engages with the bar ditch, projection optionally is maintained at an end and the other end of bar ditch.According to this embodiment, projection can engage with the bar ditch that extends towards Zhou Fangxiang, and optionally is maintained at an end and the other end of bar ditch, and can easily cutter be rotated/remain on collecting position or extrusion position.In addition, an end of bar ditch is corresponding to the 1st position of rotation of guiding sleeve, and the other end of bar ditch is corresponding to the 2nd position of rotation of guiding sleeve.
The mode that in back of the body bore hole processing, cutting fluid is supplied to the perforate of back of the body bore hole does not have special qualification, and with regard to embodiment more preferably, main shaft has the cutting fluid path that extends from the axis direction rearward end towards front, and cutting fluid is ejected to the cutter on the extrusion position.According to this embodiment, can efficiently cutting fluid be supplied to the perforate of back of the body bore hole, and can suitably implement the processing of back of the body bore hole.
The structure of cutter limits especially, and with regard to embodiment more preferably, cutter has cutter portion in axis direction rear end side and axis direction front respectively.According to this embodiment, can show bore hole processing and two kinds of bore hole processing of back of the body bore hole processing.
The structure of cutter does not have special qualification, and with regard to embodiment more preferably, cutter has cutter body and is installed in cutter body and the insertion dististyle of cutting workpiece.
(effect of invention)
So, therefore the present invention can solve the problem of complicated cylinder mechanism through can the cutter that be installed in main shaft being haunted towards the counterrotating guiding sleeve of Zhou Fangxiang, and helps the reduction of cost.According to the present invention, the guiding sleeve is rotated relatively.
Description of drawings
Fig. 1 is the plane of the back of the body bore hole axle of demonstration one embodiment of the invention.
Fig. 2 show for biopsy cavity marker devices this embodiment back of the body bore hole axle want portion's side view.
Fig. 3 is the profile of the III-III of Fig. 2.
Fig. 4 is the profile of the IV-IV of Fig. 2.
Fig. 5 is positioned at the front elevation of the back of the body bore hole axle of extrusion position for showing cutter.
Fig. 6 is positioned at the side view of the back of the body bore hole axle of extrusion position for biopsy cavity marker devices shows cutter.
Fig. 7 is positioned at the front elevation of the back of the body bore hole axle of extrusion position for showing cutter.
Fig. 8 is the profile of the VIII-VIII of Fig. 6.
Fig. 9 is the profile of the IX-IX of Fig. 6.
Figure 10 is for showing the key diagram automatically make the situation that cutter haunts.
Figure 11 is the side view of the cutting fluid path of the back of the body bore hole axle of this embodiment of demonstration.
Figure 12 is the figure of the variation of demonstration cutter.
Figure 13 show for biopsy cavity marker devices another embodiment back of the body bore hole axle want portion's side view.
Figure 14 schematically shows and the exploded perspective view of the back of the body bore hole axle of another embodiment.
Symbol description
11 back of the body bore hole axles
The main portion of 12 main shafts
13 cutters, 14 handle of a knife portions
16 guiding sleeve 16s surface-treated layers
17 flange parts
19 recesses, 21 screws
22 front end components 23 pivots
24 springs, 26 screws
26t screw front end
28 window portions, 29 springs
32 flange parts
34 circular segment are poor
35 fenders, 36 cutting fluid paths
41 back of the body bore hole axles, 43 cutters
44,45 insert dististyle (cutter portion)
46 cutter bodies
51 back of the body bore hole axles, 52 pipe components
53 button circles, 61 back of the body bore hole axles
63 ditches of 62 main shafts
64 pivots
101 fixing tools
202 times holes of 201 workpiece.
The specific embodiment
Below, specify embodiments of the invention according to embodiment shown in the drawings.
The rectangular columniform main shaft main portion 12 of the back of the body bore hole axle 11 that becomes back boring cutting tool for extending with the rotation shown in some chain lines (to call axis in the following text) in Fig. 1 and Fig. 2; Having in the axis direction leading section can be towards the cutter that radially haunts 13, and is formed with handle of a knife (shank) portion 14 in the axis direction rearward end.Handle of a knife portion 14 be have the barrel surface 14a that representes with predetermined radii, and the shape of the smooth inclined plane 14b that forms with the mode of this barrel surface of severing excision, and insert and be mounted to the front end of the fixing tool of not shown lathe.In addition, but handle of a knife portion 14 fastenings (chucking) to various fixing tools.
On the outer peripheral face of the main portion 12 of main shaft than handle of a knife portion 14 position of front more, abutted to form flange part 17.The outside dimension of flange part 17 is bigger than the outside dimension of handle of a knife portion 14.And; The outside dimension of the main portion 12 of main shaft according to flange part 17, with the columned axis direction zone 12a of the front adjacency of flange part, with the columned axis direction middle section 12b of the front adjacency of regional 12a, with the order of the columned axis direction front end area 12c of the front adjacency of axis direction middle section 12b, diminish interimly.
In the front-end of spindle portion of the axis direction front end area 12c that is included in the main portion 12 of main shaft, be formed with towards the recess 19 of the direction depression of internal diameter.And the front end in the main portion 12 of main shaft sees through the axle front end components 22 that screw 21 is equipped with cylindrical shape.The outside dimension of axle front end components 22 of fore-end that belongs to main shaft is identical with the outside dimension of axis direction front end area 12c.Axle front end components 22 and recess 19 adjacency.Between axle front end components 22 and the main portion 12 of main shaft, to have set up pivot 23 through the mode of recess 19.Pivot 23 extends with parallel axes ground, and props up cutter 13 with rotating mode axle.Whereby, cutter 13 turns to along main shaft to fall down and be housed in the collecting position in the recess 19 like Fig. 2 and shown in Figure 3, and as Fig. 5 erect and the extrusion position given prominence to from recess 19 to shown in Figure 8 turning to respect to the main portion 12 of main shaft.
The through hole 22h that the leading section of pivot 23 is formed on a front end components 22 and extends with parallel axes ground.Screwed togather fixed screw 23 at through hole 22h from front.Whereby, prevent that pivot 23 from coming off from through hole 22h.
The rearward end of pivot 23 is inserted and is passed to from the recessed towards the rear hole 12h of the front end of the main portion 12 of main shaft.
At the through hole 22h of the inside of axle front end components 22 and the annular gap of pivot 23, be provided with spring 29.Spring 29 is for engage with a cutter 13 and an axle front end components 22 respectively, and cutter 13 rotations are erected and suppresses the member that suppresses to extrusion position.
Axle front end components 22 is fixed on the front end of the main portion 12 of main shaft through screw 21.Yet axle front end components 22 excessive is separated from the main portion 12 of main shaft when being pulled away from power applying.Promptly; In the present embodiment; Back of the body bore hole axle 11 has the main portion of main shaft 12, be included in the cutter support portion of supporting cutter 13 axle front end components 22 and pivot 23, and connect the screw 21 as linking part of main portion and cutter support portion, screw 21 constitutes: when excessive removing both connection when being pulled away from power applying between main portion and the cutter support portion.
The outside dimension of the outer peripheral face of guiding sleeve 16 is in flange part 32 maximums of axis direction rear end, and is minimum in the axis direction front.Particularly; According to the outside dimension of flange part 32, be positioned at than flange part 32 more near the outside dimension of the regional 16a of the drum of the position of axis direction front, be positioned at than regional 16a more near the order of the outside dimension of the regional 16b of the drum of the position of axis direction front, diminish interimly.In addition, on the regional 16a of guiding sleeve periphery and the border of regional 16b, be formed with circular segment and differ from 34.Differ from 34 in circular segment and be provided with the fender 35 that relaxes with the bump of workpiece.
Be metal system with respect to the guiding sleeve that comprises flange part 32 16, elastic material geometric ratio metals such as soft resin that fender 35 is waited by Polyurethane (urethane) or the rubber more material of softness form.In detail as after state, the surface of fender 35 be the plane with the rectangular ring-type of axis, when carrying on the back the advancing of bore hole axle 11 and the surperficial butt of the table side (carrying on the back bore hole axle 11 sides) of workpiece.
The surf zone 16s that contacts with the following hole workpiece that will process at least outer peripheral face of guiding sleeve 16 applies in order to become the surface treatment of low friction.Put on as the surface treatment of the surface-treated layer 16s of the low friction part low friction treatment of ion Plasma Nitriding Treatment, DLC (Diamond Like Carbon) coating processing, TiN (titanium nitride) coating processing and mirror-like milled processed etc. for example.This surface treatment spreads all over implementing in 360 ° of full weeks of outer peripheral face.Surface-treated layer 16s can be formed on the whole of regional 16b, or also can be formed on the part of regional 16b, but is formed on the zone of the axis direction between the fender 35 and window portion 28 at least.
The inner peripheral surface of guiding sleeve 16, and the outer peripheral face of the axis direction middle section 12b of the main portion 12 of main shaft between, zoning has annulus, at this annulus, contracting is provided with spring 24.It is poor that the axis direction rear end of spring 24 is connected to the circular segment on border of regional 12a and axis direction middle section 12b; On the other hand; It is poor that the axis direction front end of spring 24 is connected to the circular segment in the interior week of being located at guiding sleeve 16, and will guide sleeve 16 and suppress to the front of the main portion 12 of main shaft.
Than the spring 24 guiding sleeve 16 of front more, be equipped with the screw hole 25 (with reference to Fig. 4, Fig. 9) that connects towards radially, screwed togather screw 26 at screw hole 25.The head of screw 26 is installed in guiding sleeve 16, and the front end 26t of screw 26 engages with the bar ditch 27 of the axis direction middle section 12b of the outer peripheral face that is formed on the main portion 12 of main shaft.Bar ditch 27 is arranged at axis direction middle section 12b, and extends towards Zhou Fangxiang, and an end 27a and the other end 27b slightly extend towards axis direction the place ahead respectively.
Screw front end 26t is guided along bar ditch 27, and the anglec of rotation of therefore guiding sleeve 16 is limited between an end 27a and the other end 27b.In addition, except screw front end 26t was positioned at the situation of both ends 27a, 27b of bar ditch 27, guiding sleeve 16 was set as and can not slides relatively towards axis direction.
With respect to this, when screw front end 26t was positioned at both ends 27a, the 27b of bar ditch 27, guiding sleeve 16 can slide towards axis direction slightly relatively.And screw front end 26 suppresses towards the axis direction front through spring 24, and is entrenched in an end 27a or the other end 27b.Whereby, guiding sleeve 16 can not rotate towards Zhou Fangxiang relatively.
Leading section side at guiding sleeve 16 forms fenestrate 28.Window portion 28 be positioned at recess 19 near, and through the guiding sleeve 16 relative rotation and with recess 19 interdict so that the opening.Referring to figs. 1 through Fig. 4, when the screw front end 26t of screw 26 that is installed in guiding sleeve 16 was positioned at an end 27a, guiding sleeve 16 was positioned at Zhou Fangxiang one side's the 1st position of rotation, and window portion 28 is different with the Zhou Fangxiang position of recess 19 and interdict recess 19.So, guiding sleeve 16 remains on the collecting position in the recess 19 through covering cutter 13 with cutter 13.
When cutter 13 is given prominence to, guiding sleeve 16 is relatively rotated with respect to the main portion 12 of main shaft.So, the Zhou Fangxiang position of window portion 28 and the Zhou Fangxiang position consistency of recess 19, cutter 13 can expose.In addition, cutter 13 can rotate through the elastic force pressure of spring 29 and erect.
With reference to Fig. 5 to Fig. 9, when the screw front end 26t of the screw 26 that is installed in guiding sleeve 16 was positioned at the other end 27b, guiding sleeve 16 was positioned at Zhou Fangxiang the opposing party's the 2nd position of rotation, and window portion 28 makes recess 19 open with the Zhou Fangxiang position consistency of recess 19.So, through cutter 13 being exposed, and make cutter 13 be positioned at the extrusion position outstanding from window portion 28 towards radial outside from window portion 28.
With reference to Fig. 8, the processing of back of the body bore hole makes cutter 13 be connected to workpiece through one side, and one side makes the main portion 12 of main shaft carry out towards inverse time meter direction rotation.Cutter 13 affords the power of up time meter direction in when cutting from workpiece, and the wall support of zoning recess 19 is positioned at the cutter 13 of extrusion position.Whereby, cutter 13 can stably not carried on the back bore hole processing by the trying hard to recommend down of up time meter direction.
When cutter 13 is submerged, guiding sleeve 16 is relatively rotated with respect to the main portion 12 of main shaft, and 27b move from the other end to make screw front end 26t toward an end 27a.At this moment, cutter 13 is pushed over towards the frame 28p of window portion of the window portion 28 of inverse time meter direction rotation with respect to the main portion 12 of main shaft in Fig. 8, and the elastic force pressure of antagonistic spring 29 and falling down along the main portion 12 of main shaft.Whereby, make cutter 13 get back to collecting position.
In the back of the body bore hole processing of the back of the body bore hole axle 11 of using present embodiment; Haunting of cutter is shown in figure 10; The fixing tool 101 of lathe advances back of the body bore hole axle 11, and with circular segment differ from 34 be urged to the front side (back of the body bore hole axle side) of workpiece 201 front 203, can automatically carry out whereby.
The order of back of the body bore hole processing is described with reference to Figure 10.At first, cutter is positioned under the state of collecting position, the fixing tool 101 of lathe makes back of the body bore hole axle 11 insert the following hole 202 that passes to workpiece 201.The internal diameter in following hole 202 is more bigger than the external diameter of the surf zone 16s of guiding sleeve 16, and the axis direction zone 16b of guiding sleeve 16 can connect down hole 202, and window portion 28 and axle front end components 22 204 are given prominence to from the back side.
Then, back of the body bore hole axle 11 is advanced, with circular segment differ from 34 be urged to the front side (back of the body bore hole axle side) of workpiece 201 front 203.So guiding sleeve 16 can't be crossed front 203 and advance, and the main portion 12 of main shaft can advance.Whereby, spring 24 is compressed, and guiding sleeve 16 is retreated with respect to the main portion 12 of main shaft slightly relatively.Whereby, remove the chimeric of a screw front end 26t and an end 27a.
Then, the fixing tool 101 of lathe makes the main portion 12 of main shaft rotate relatively towards a direction of rotation with respect to guiding sleeve 16.Whereby, screw front end 26t can move along bar ditch 27 from an end 27a, and is positioned at the other end 27b.In addition, window portion 28 can move to the Zhou Fangxiang position of recess 19, and cutter 13 is positioned at extrusion position.
Then, the fixing tool 101 of lathe is retreated back of the body bore hole axle 11, and guiding sleeve 16 can be suppressed to front through spring 24, and screw front end 26t and the other end 27b of screw 26 are chimeric.And one side makes 11 rotations of back of the body bore hole axle, and one side is retreated with the cutting feed speed, makes cutter 13 be connected to the back side 204, and bore hole processing is carried on the back at the back side 204.
When back of the body bore hole process finishing, the fixing tool 101 of lathe advances back of the body bore hole axle 11, and with circular segment differ from 34 be urged to the front side (back of the body bore hole axle side) of workpiece 201 front 203.So guiding sleeve 16 can't be crossed front 203 and advance, the main portion 12 of main shaft can advance.Whereby, spring 24 is compressed, and guiding sleeve 16 is retreated with respect to the main portion 12 of main shaft slightly relatively.Whereby, remove the chimeric of screw front end 26t and the other end 27b.
Then, the fixing tool 101 of lathe makes the main portion 12 of main shaft rotate relatively towards another direction of rotation with respect to guiding sleeve 16.Whereby, screw front end 26t can move along bar ditch 27 by 27b from the other end, and is positioned an end 27a.In addition, window portion 28 can be from the Zhou Fangxiang position of recess 19 away from, cutter 13 is positioned collecting position.
Then, the fixing tool 101 of lathe is retreated back of the body bore hole axle 11, and 16 in guiding sleeve is suppressed to front through spring 24, and the screw front end 26t of screw 26 and an end 27a are chimeric.And, back of the body bore hole axle 11 is retreated with quick rate of delivery, and is extracted out from hole 202 down.
In the back of the body bore hole processing of above explanation, the fixing tool 101 of lathe differs from 34 through the circular segment that makes guiding sleeve 16 and is urged to workpiece 201 and rotation, and cutter 13 is haunted.Yet the back of the body bore hole axle 11 of present embodiment is not limited to automatically make cutter 13 to haunt, and do not get rid of through the main portion 12 of fixed main shaft and operator with manually make guiding sleeve 16 relatively rotation cutter 13 is haunted.
In addition, in the present embodiment, when cutter is submerged, have cutter 13 because cut obstruction etc. and the collecting position that can not submerge fully of powder, and the side-prominent situation from window portion towards external diameter more or less.When this urgent situation, screw 21 can be deviate from from the main portion 12 of main shaft, can the damage of back of the body bore hole axle 11 and workpiece 201 be suppressed at Min..
Particularly; Under cutter 13 state side-prominent towards external diameter from window portion 28; When with quick rate of delivery back of the body bore hole axle 11 being retreated, cutter 13 meetings are clashed into the bottom surface of the back of the body bore hole perforate at the back side 204, and can be applied to screw 21 than the power that is pulled away from of big usually axis direction.So screw 21 leading sections can be deviate from from the main portion 12 of main shaft, screw 21, axle front end components 22, pivot 23, cutter 13 can remain in the back side 204 sides from main shaft main portion 12 separation.In addition, main portion 12 of main shaft and guiding sleeve 16 can be drawn out of from following hole 202.
Figure 11 is for showing the side view of the cutting fluid path of carrying on the back bore hole axle 11.The main portion 12 of main shaft has the cutting fluid path 36 that extends towards the axis direction front from the rear end of handle of a knife portion 14.Cutting fluid path 36 is arranged on the inside of the main portion 12 of main shaft and extends towards axis direction, and its leading section 36f changes 90 degree directions and court's direction extension rectangular with axis.This cutting fluid path leading section 36f exposes and points to the cutter 13 on the extrusion position from window portion 28.Cutting fluid path 36 is supplied with cutting fluid from fixing tool 101 in the processing of back of the body bore hole, and towards the direction of arrow cutting fluid is ejected to cutter 13.Whereby, cutter 13 cooling in the processing of back of the body bore hole.
Explanation by above is learnt; Back of the body bore hole axle 11 according to present embodiment; Possess guiding sleeve 16, this guiding sleeve 16 is a kind of can counterrotating mode being arranged on the cylindrical body of the periphery of the main portion 12 of main shaft, and has window portion 28 in the side; And through the 1st position of rotation (referring to figs. 1 through Fig. 4) covering cutter 13 with Zhou Fangxiang one side; And cutter is remained on collecting position, and cutter 13 is exposed from window portion 28 through the 2nd position of rotation (with reference to Fig. 5 to Fig. 9) Zhou Fangxiang the opposing party, and make cutter give prominence to and be positioned at extrusion position from window portion towards radial outside.Whereby, can cutter be haunted with easy structure, favourable on cost.
In addition; According to present embodiment; Also possesses the surface-treated layer 16s on the outer peripheral face that is formed on guiding sleeve 16, with as the zone that contact with the following hole 202 of the workpiece that will process 201 at least on the outer peripheral face that is arranged on guiding sleeve 16, with the low friction part of the minimizing and the friction of workpiece 201.Whereby, back of the body bore hole axle 11 inserted the following hole 202 of workpiece 201 and carry on the back bore hole add man-hour, the rotational resistance between the inner peripheral surface that can suitably reduce hole 202 down and the outer peripheral face of guiding sleeve 16.
Moreover according to present embodiment, guiding sleeve 16 is included in when advancing and the circular segment of surface 203 butts of workpiece 201 differs from 34, and differs from 34 in circular segment and be provided with and relax and the fender 35 of the bump of workpiece 201.Whereby, circular segment is being differed from 34 when pressing against the surface 203 of workpiece, can not damage the surface of workpiece.And lathe makes back of the body bore hole axle 11 advance and even retreat, and cutter is haunted.
In addition; According to present embodiment; Main shaft has the main portion of main shaft 12, as the axle front end components 22 of the cutter support portion of supporting cutter 13 and pivot 23, and as the screw 21 of the linking part of connection main portion of main shaft and cutter support portion, linking part constitutes: excessive remove both connection when being pulled away from power in that main shaft is applied between main portion and the cutter support portion.Whereby; When automatically cutter 13 being haunted; Even collecting position just in case cutter does not fully submerge; And more or less from window portion 28 towards external diameter during side-prominent situation, also when back of the body bore hole axles 11 are extracted in hole 202 out down, the power that excessively is pulled away from of desiring to be pulled away from the main portion 12 of main shaft and axle front end components 22 during the back side 204 bumps of cutter 13 and workpiece 201 can be applied to screw 21.Whereby, the main portion 12 of main shaft can separate with axle front end components 22, and cutter 13 breaks away from from main shaft.Therefore, can prevent to carry on the back the serious damage of bore hole axle 11 or workpiece 201.
Moreover; According to present embodiment; Outer peripheral face in the main portion 12 of main shaft is formed with the bar ditch 27 that extends towards Zhou Fangxiang; Inner peripheral surface at guiding sleeve 16 is fixed with the screw front end 26t that belongs to the projection that engages with bar ditch 27, and screw front end 26t selectivity remains on an end 27a and the other end 27b of bar ditch 27.One end 27a is corresponding to the 1st position of rotation of guiding sleeve 16, and therefore the other end 27b can easily carry out haunting of cutter 13, and can make cutter 13 remain on collecting position or extrusion position corresponding to the 2nd position of rotation of guiding sleeve 16.
According to present embodiment, the main portion 12 of main shaft has from the axis direction rearward end towards front the cutting fluid path 36 that extends and cutting fluid is ejected to the cutter 13 of extrusion position.Whereby, can efficiently cutting fluid be supplied to back of the body bore hole, and can suitably carry out the processing of back of the body bore hole.
The back of the body bore hole axle of variation of the present invention then, is described according to Figure 12.Back of the body bore hole axle 41 shown in Figure 12 is except cutter, and all parts and said back of the body bore hole axle 11 are common.The cutter 43 of back of the body bore hole axle 41 has: be installed in the cutter body 46 of pivot and rotation and be installed in cutter body 46 and become the insertion dististyle 44,45 of the cutter portion of cutting workpiece.Particularly, have the dististyle 44 of insertion, have the cutter portion 45 that inserts dististyle at the front-end edge of the cutter body 46 that points to towards axis direction the place ahead at the end edge of the cutter body 46 that points to towards the axis direction rear of back of the body bore hole axle 41.
According to this variation; Owing to have cutter portion respectively in axis direction rear end side and axis direction front; Therefore not only can utilize the cutter portion 44 of rear end side to implement the processing of back of the body bore hole to form back of the body bore hole perforate 205 at the back side 204 of the workpiece 201 that is inserted with back of the body bore hole axle 41, the cutter portion 45 execution table bore holes processing that can also utilize front on the surface 203 of workpiece 201 is to form bore hole perforate 206.And, can be positioned at than workpiece 201 more the surface 208 execution table bore holes processing of the dorsal part workpiece 207 of the position of front to form bore hole perforate 209.Moreover, can insert logical back of the body bore hole axle 41 in the following hole 210 of dorsal part workpiece 207, and can implement the processing of back of the body bore hole, and can show 2 kinds of processing of bore hole processing and the processing of back of the body bore hole the back side 211 of dorsal part workpiece 207.And, through the total length of selected back of the body bore hole axle 41, also can be to being positioned at than the more not shown dorsal part workpiece execution bore hole processing of the position of front of dorsal part workpiece 207.
The back of the body bore hole axle of another embodiment of the present invention then, is described according to Figure 13.Figure 13 be the biopsy cavity marker devices another embodiment of the present invention want portion's side view.According to this embodiment,, different formations is described below to giving same symbol and omit explanation with the common formation of the foregoing description.In the back of the body bore hole axle 51 of embodiment shown in Figure 13, the outer peripheral face that is provided with itself hangs down the pipe component 52 of friction treatment, to replace surface-treated layer 16s.
Back of the body bore hole axle 51 according to embodiment shown in Figure 13; Because the zone that contacts with the following hole of the workpiece that will process at least on the outer peripheral face of guiding sleeve 16 is equipped with pipe component 52; Therefore add man-hour carrying on the back bore hole, can between the inner peripheral surface in the periphery of back of the body bore hole axle 51 and following hole, reduce rotational resistance.In addition, pipe component 52 also can together rotate with guiding sleeve 16.
With regard to variation, pipe component 52 also can be can rotate freely mode more to be supported on the periphery of guiding sleeve 16 near the position of axis direction rear end side than window portion 28 relatively.
Then, the back of the body bore hole axle to another embodiment of the present invention describes according to Figure 14.Figure 14 is the exploded perspective view that schematically shows another embodiment of the present invention.According to embodiment,, different formations is described below to giving prosign and omit explanation with the common formation of the foregoing description.In back of the body bore hole axle 61 shown in Figure 14, possessing has: the main shaft 62 of cylindrical shape, extend and the axis direction rearward end becomes the inserted-shape of the fixing tool that can be installed in lathe along axis; Guiding sleeve 16 is covered by the leading section of main shaft 62; Reach cutter 13, be installed in the position near front end of main shaft 62.
Than the leading section 62s of main shaft 62 position at rear more, form recess 19 in order to accommodate cutter 13.In addition, the periphery at main shaft 62 forms the bar ditch 63 that extends with the parallel axes ground of carrying on the back bore hole axle 61.Bar ditch 63 spread all over the 62s of front-end of spindle portion, recess 19, than recess 19 more the rear regional 62k and extend.
In the centre of the pivot that extends into linearity 64 cutter 13 is set.The two ends of pivot 64 are outstanding from cutter 13 respectively.The pivot 64 that pivot props up cutter 13 is housed in bar ditch 63.Whereby, the leading section 64s of pivot 64 is configured in the 62s of front-end of spindle portion, and the back-end region of pivot 64 is configured in rear-end of spindle zone 62k.
Guiding sleeve 16 relatively rotates with respect to main shaft 62.And, cover cutter 13 through the 1st position of rotation Zhou Fangxiang one side, cutter is remained on the collecting position in the recess 19.In addition, cutter 13 is exposed from window portion 28, and make cutter 13 outstanding and be positioned at extrusion position from window portion 28 towards radial outside at Zhou Fangxiang the opposing party's the 2nd position of rotation.
Though more than with reference to the description of drawings embodiments of the invention, the present invention is not limited to the embodiment of accompanying drawing.To the embodiment of accompanying drawing, with the same scope of the present invention in or in the impartial scope, can carry out various corrections or change.
(industrial applicability)
Back boring cutting tool of the present invention effectively utilizes at lathe.
Claims (10)
1. back boring cutting tool is characterized in that possessing:
Main shaft extend along axis, and the axis direction rearward end has the inserted-shape of the fixing tool that can be mounted to lathe;
Cutter is supported on the axis direction leading section of said main shaft with rotating mode, and is set as collecting position of putting upside down along main shaft and the extrusion position that erects with respect to main shaft;
Suppress member, cutter is rotated erect and suppress to said extrusion position; And
The guiding sleeve; For can counterrotating mode to be arranged on the cylindrical body of the periphery of main shaft; And has window portion in the side of cylindrical body; Cover said cutter and cutter is remained on said collecting position through the 1st position of rotation, and through the 2nd position of rotation said cutter is exposed to make that cutter is outstanding from window portion towards radial outside to be set as said extrusion position from said window portion Zhou Fangxiang the opposing party Zhou Fangxiang one side.
2. back boring cutting tool according to claim 1 is characterized in that, further possesses low friction part, is arranged on the zone that contacts with the following hole of the workpiece that will process at least on the outer peripheral face of said guiding sleeve, to lower the friction with workpiece.
3. back boring cutting tool according to claim 2 is characterized in that, said low friction part is the surface-treated layer that is formed on the outer peripheral face of said guiding sleeve.
4. back boring cutting tool according to claim 2 is characterized in that, said low friction part is installed in the pipe component on the outer peripheral face of said guiding sleeve.
5. back boring cutting tool according to claim 1 is characterized in that, said guiding sleeve be included in when advancing and the section of the surperficial butt of workpiece poor, and be provided with in order to relax and the fender of the bump of workpiece said section difference.
6. back boring cutting tool according to claim 1 is characterized in that, said main shaft has:
Main portion;
Said cutter is supported in the cutter support portion; And
Linking part connects said main portion and said cutter support portion;
Said linking part constitutes: excessive remove both connection when being pulled away from power applying between said main portion and the said cutter support portion.
7. back boring cutting tool according to claim 1 is characterized in that, is formed with the bar ditch that extends towards Zhou Fangxiang at the inner peripheral surface of said guiding sleeve or outer peripheral face one side of said main shaft;
The opposing party at the outer peripheral face of the inner peripheral surface of said guiding sleeve or said main shaft is formed with the projection that engages with said ditch;
Said projection optionally is maintained at an end and the other end of said ditch.
8. back boring cutting tool according to claim 1 is characterized in that, said main shaft has from the axis direction rearward end towards front the cutting fluid path that extends and cutting fluid is ejected to the said cutter on the said extrusion position.
9. back boring cutting tool according to claim 1 is characterized in that, said cutter has cutter portion in axis direction rear end side and axis direction front respectively.
10. back boring cutting tool according to claim 1 is characterized in that, said cutter has cutter body and is installed in the insertion dististyle of said cutter body and cutting workpiece.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010205026A JP5289402B2 (en) | 2010-09-14 | 2010-09-14 | Counterbore cutting tool |
| JP2010-205026 | 2010-09-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102398052A true CN102398052A (en) | 2012-04-04 |
| CN102398052B CN102398052B (en) | 2014-07-30 |
Family
ID=45880931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110058190.9A Active CN102398052B (en) | 2010-09-14 | 2011-03-08 | Back Boring Cutting Tool |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5289402B2 (en) |
| CN (1) | CN102398052B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109692986A (en) * | 2019-02-28 | 2019-04-30 | 溧阳市飞跃机电有限公司 | Reverse counterboring device for wind power generating set support |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6555145B2 (en) * | 2016-02-03 | 2019-08-07 | 三菱電機株式会社 | Cutting tool, processing device having cutting tool, and processing method using cutting tool |
| CN106216744B (en) * | 2016-08-17 | 2018-02-06 | 哈尔滨哈锅锅炉工程技术有限公司 | A kind of boiler header the machining of drilling instrument |
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| JPS48109575U (en) * | 1972-03-21 | 1973-12-17 | ||
| JPS48109574U (en) * | 1972-03-21 | 1973-12-17 | ||
| JPH05200731A (en) * | 1991-09-27 | 1993-08-10 | Artur Fischer Gmbh | Drill device with undercut part for forming dore |
| US5829925A (en) * | 1994-08-23 | 1998-11-03 | H. Granlund Tools Kb | Coolant actuated rear-end countersinking tool |
| CN1212916A (en) * | 1997-09-10 | 1999-04-07 | 乌尔夫·胡勒 | Spot-facing and burring tool controlled by centrifugal force |
| US5927911A (en) * | 1998-10-19 | 1999-07-27 | R. Steiner Technologies, Inc. | Automatic fluid actuated spotfacing and counterboring tool |
| JP2002301614A (en) * | 2001-04-05 | 2002-10-15 | Mitsubishi Materials Corp | Tool/device for drilling |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS6029005U (en) * | 1983-07-28 | 1985-02-27 | 日野自動車株式会社 | Chamfering tool |
| JP2003205407A (en) * | 2002-01-09 | 2003-07-22 | Nippon Pneumatic Mfg Co Ltd | Counter boring tool, and counter boring method using the tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS48109575U (en) * | 1972-03-21 | 1973-12-17 | ||
| JPS48109574U (en) * | 1972-03-21 | 1973-12-17 | ||
| JPH05200731A (en) * | 1991-09-27 | 1993-08-10 | Artur Fischer Gmbh | Drill device with undercut part for forming dore |
| US5829925A (en) * | 1994-08-23 | 1998-11-03 | H. Granlund Tools Kb | Coolant actuated rear-end countersinking tool |
| CN1212916A (en) * | 1997-09-10 | 1999-04-07 | 乌尔夫·胡勒 | Spot-facing and burring tool controlled by centrifugal force |
| US5927911A (en) * | 1998-10-19 | 1999-07-27 | R. Steiner Technologies, Inc. | Automatic fluid actuated spotfacing and counterboring tool |
| JP2002301614A (en) * | 2001-04-05 | 2002-10-15 | Mitsubishi Materials Corp | Tool/device for drilling |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109692986A (en) * | 2019-02-28 | 2019-04-30 | 溧阳市飞跃机电有限公司 | Reverse counterboring device for wind power generating set support |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2012061525A (en) | 2012-03-29 |
| CN102398052B (en) | 2014-07-30 |
| JP5289402B2 (en) | 2013-09-11 |
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