CN105855578B - A kind of combination boring bar device being conveniently adjusted - Google Patents
A kind of combination boring bar device being conveniently adjusted Download PDFInfo
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- CN105855578B CN105855578B CN201610483809.3A CN201610483809A CN105855578B CN 105855578 B CN105855578 B CN 105855578B CN 201610483809 A CN201610483809 A CN 201610483809A CN 105855578 B CN105855578 B CN 105855578B
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- boring
- bar
- extension bar
- hole
- taper shank
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
- B23B29/02—Boring bars
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
The present invention relates to a kind of combination boring bar device being conveniently adjusted, including boring bar, extension bar, floating installation, floating installation includes the taper shank being connected with boring spindle, alignment pin, hemispherical head screw, extension bar one end is located in the blind hole of taper shank end, the other end is connected with boring bar, pass through radially connected pin connection between extension bar and taper shank, extension bar end is provided with internal thread hole, alignment pin is located in internal thread hole, hemispherical head screw thread is connected in internal thread hole, hemispherical head screw head is butted on blind via bottom, the spherical of alignment pin one end protrusion is matched with the deep-slotted chip breaker of connecting pin peripheral surface, spring is cased with alignment pin, spring one end is butted on the shaft shoulder of alignment pin, the other end is butted on the afterbody of hemispherical head screw, clearance distance is provided between extension bar peripheral surface and blind hole hole wall.The present invention uses boring bar and extension bar Split type structure, and assembly and disassembly are easily, operation is flexible, safeguard facility, improve the machining accuracy of bore hole, ensure the stability of crudy, improve processing efficiency.
Description
Technical field
The present invention relates to a kind of combination boring bar device being conveniently adjusted, belong to machining technology field.
Background technology
In the prior art, boring bar is usually monoblock type boring bar, and manufacture is more complicated, and required precision is higher, during actual use
The size according to processed bore dia is needed, changes the boring bar of different-diameter；In boring deep hole, boring bar requires rigidity, intensity
It is better, it is necessary to which shaping-orientation device is oriented to boring bar.Therefore, when heavy boring, half right boring and right boring workpiece, it is necessary to change different
Boring bar and boring bar guide device, manufacturing cost is high, installation is complex, efficiency is low.Common boring bar is fixed with machine tool chief axis,
Spindle centerline and fixture guide sleeve the centerline hole error caused by angle or deviation, boring precision can not be eliminated
It is low, it is impossible to meet production requirement.
The content of the invention
To solve the above problems, the present invention provides a kind of combination boring bar device being conveniently adjusted, using boring bar and extension bar point
The structure of body, simple in construction, assembly and disassembly are easily, operation is flexible, safeguard facility, improve the machining accuracy of bore hole, ensure crudy
Stability, improve processing efficiency.
To achieve the above object, the technical scheme taken of the present invention is：
A kind of combination boring bar device being conveniently adjusted, is installed on boring machine, including boring bar, extension bar, floating installation, floating installation
Including the taper shank, alignment pin, hemispherical head screw being connected with boring spindle, the blind hole coaxial with taper shank is provided with the end of taper shank,
One end of extension bar is located in blind hole, and the other end and boring bar of extension bar are coaxially connected, by along taper shank and connecing between extension bar and taper shank
The connection pin connection of bar radial direction, on the surface of connecting pin circumferentially arranged with a circle deep-slotted chip breaker, it is provided with vertically in the end of extension bar
The coaxial internal thread hole with extension bar, alignment pin are located in internal thread hole, and hemispherical head screw thread is connected in internal thread hole, hemisphere
The head of head screw is butted on the bottom of the blind hole of taper shank, and alignment pin one end is provided with the spherical of protrusion, and the spherical of alignment pin is matched somebody with somebody
Together in the deep-slotted chip breaker of connecting pin, periphery and the tangent cylinder of spherical are additionally provided with alignment pin one end, on alignment pin
Spring is cased with, one end of spring is butted on the shaft shoulder of cylinder, and the other end of spring is butted on the afterbody of hemispherical head screw, the week of extension bar
To being provided with clearance distance between surface and blind hole hole wall.
Also include guider, guider includes the guide sleeve, sleeve, boring mould bracket for being placed on extension bar peripheral surface, boring template
Frame is installed on boring machine, is circumferentially with a circle flange along guide sleeve, is cased with gland respectively at the both ends of guide sleeve, the pressure at both ends
Lid flange between be respectively equipped with bearing, bearings between guide sleeve and boring mould bracket, sleeve be arranged at both ends bearing it
Between, and the both ends of sleeve are butted on the outer ring of bearings at both ends respectively, sleeve is matched with boring mould bracket, distinguishes spiral shell at the both ends of guide sleeve
Line is connected with the nut for being butted on gland end, and at both ends, gap is combined with the end cap being connected with boring mould bracket to the circumference of gland respectively,
The end of both ends end cap is butted on the outer ring of bearings at both ends respectively, guide groove is provided with along the axial surface of extension bar, along the footpath of guide sleeve
To guider screw is threaded with, the afterbody of guider screw is located in guide groove.
Clearance distance between the peripheral surface and taper shank blind hole hole wall of extension bar is in the range of 0.5~1mm.
Taper shank includes cylindrical end and cone segments, and cone segments are connected with boring spindle, and through hole one is radially provided with along cylindrical end,
Blind hole is located at the end of cylindrical end, and through hole two is radially provided with along extension bar, connecting pin through through hole one, through hole two, extension bar it is interior
Screwed hole is vertical with through hole two to be communicated.
Groove is provided with one end being connected with boring bar of extension bar, the end of boring bar is provided with the projection with fit depressions, boring
Connected between bar and extension bar by attachment screw one.
Radially there are the boring cutter mounting hole of angle, boring cutter at least provided with an axis and boring bar along the side of boring bar axial surface
Angle between the axis and boring bar radial direction of mounting hole is 10 °~45 °, and boring cutter is provided with boring cutter mounting hole, and boring cutter passes through pressure
Tight screw is fixed on boring bar, is connected with adjusting screw in boring cutter mounting hole internal thread, the end of boring cutter is in contact with adjusting screw.
End cap is connected by attachment screw two with boring mould bracket, and adjusting washer is provided between end cap and boring mould bracket.
Guide cylinder is provided with the afterbody of guider screw, guide cylinder is located in guide groove.
Sealing felt collar is provided between end cap and gland.
A kind of combination boring bar device being conveniently adjusted of the present invention, using boring bar and the structure of extension bar split, assembly and disassembly
Easily, it is simple in construction, facility is safeguarded, the present invention can be used when heavy boring, half right boring, right boring workpiece, need to only be changed different
Boring bar.When machine tool chief axis center line and boring mould bracket center line such as offset or deflected at the malalignment error, taper shank is with connecing
Bar can realize micro floating by connecting pin, alignment pin, spring, hemispherical head screw, play autoregulation, improve bore hole
Machining accuracy, the amount of floating depend between extension bar right-hand member external cylindrical surface and the horizontal blind hole hole wall of taper shank left end radial clearance away from
From size.Extension bar is convenient to mount and dismount with taper shank, only need to be pushed into or release connecting pin extension bar and taper shank can be assembled together or
Take apart, operation facility.It is oriented between extension bar and guide sleeve by guider screw, guider screw moves in the guide groove of extension bar,
Can ensure extension bar in guide sleeve only relative movement and without relative rotation, so as to ensure that extension bar keeps fixing for guide sleeve
Angle position, advantageously ensure that the stability of crudy.Guide sleeve rotates with bearing, two angular contact ball bearings
On guide sleeve, reconditioning adjusting washer can ensure that end cap compresses the outer ring of bearing, and gland is pressed on into axle by nut
The inner ring held.This configuration can increase the supporting rigidity of bearing, and bearing can bear bi-directional axial load, and precision is high, resistance to deformation energy
Power is big；When axle is by thermal stretching, bearing clearance increase, bearing will not be stuck.The left end processing of extension bar is fluted, with boring bar right-hand member
Male cooperation, boring bar and extension bar are linked together by attachment screw one.One group or more can be equipped with boring bar as needed
Group boring cutter, the position of boring cutter can be adjusted by adjusting screw, can be fixed boring cutter by two hexagon socket head housing screws
On boring bar, the processing of multiple working procedure can be completed simultaneously.
The present invention is simple in construction, assembly and disassembly are easy, operation is flexible, safeguards facility, improves the machining accuracy of bore hole, guarantee processing
The stability of quality, improve processing efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the mplifying structure schematic diagram at floating installation assembling.
In figure：Taper shank 1, blind hole 1-1, cylindrical end 1-2, cone segments 1-3, the 1-4 of through hole one, hemispherical head screw 2, spring 3 are fixed
Position pin 4, spherical 4-1, shaft shoulder 4-2, cylinder 4-3, connecting pin 5, deep-slotted chip breaker 5-1, extension bar 6, through hole two 6-1, internal thread hole 6-
2, guide groove 6-3, groove 6-4, end cap 7, guider screw 8, guide cylinder 8-1, boring mould bracket 9, sleeve 10, guide sleeve 11, flange
11-1, gland 12, nut 13, boring bar 14, raised 14-1, boring cutter mounting hole 14-2, adjusting screw 15, workpiece 16, boring cutter 17, pressure
Tight screw 18, attachment screw 1, seals felt collar 20, bearing 21, adjusting washer 22, attachment screw 2 23.
Embodiment
It is described in further detail below in conjunction with the most preferred embodiment shown in accompanying drawing：
In embodiment 1, see Fig. 1~Fig. 2, a kind of combination boring bar device being conveniently adjusted, be installed on boring machine, including boring bar
14th, extension bar 6, floating installation, guider, floating installation include taper shank 1, alignment pin 4, the hemispherical head spiral shell being connected with boring spindle
Nail 2, be provided with the blind hole 1-1 coaxial with taper shank 1 in the end of taper shank 1, one end of extension bar 6 is located in blind hole 1-1, extension bar 6 it is another
One end and boring bar 14 are coaxially connected.
Taper shank 1 includes cylindrical end 1-2 and cone segments 1-3, and cone segments 1-3 is connected with boring spindle, along cylindrical end 1-2 footpath
Cylindrical end 1-2 end is located at, the 6-1 of through hole two, connecting pin 5 are radially provided with along extension bar 6 to provided with the 1-4 of through hole one, blind hole 1-1
Through the 1-4 of through hole one, the 6-1 of through hole two, the internal thread hole 6-2 coaxial with extension bar 6 is provided with vertically in the right part of extension bar 6, is connect
The internal thread hole 6-2 of bar 6 is vertical with the 6-1 of through hole two to be communicated.
Alignment pin 4 is located in internal thread hole 6-2, and the left end external cylindrical surface of hemispherical head screw 2 is machined with external screw thread, hemispherical head
Screw 2 is screwed in the internal thread hole 6-2 of the right-hand member of extension bar 6, and the right-hand member head of hemispherical head screw 2 is sphere, and the sphere withstands on taper shank 1
On the horizontal blind hole 1-1 of left end bottom surface.It is right circumferentially arranged with a circle deep-slotted chip breaker 5-1, alignment pin 4 in the middle part surface of connecting pin 5
Cylindroid helical-coil compression spring 3 is housed, the one end of alignment pin 4 is provided with the spherical 4-1 of protrusion, in alignment pin 4 on the external cylindrical surface at end
One end is additionally provided with the cylinder 4-3 tangent with spherical, and the left end of spring 3 is against on cylinder 4-3 shaft shoulder 4-2, the right-hand member of spring 3
The left end afterbody of hemispherical head screw 2 is against, the spherical 4-1 of the protrusion of the left end of alignment pin 4 is withstood on by connecting pin 5 by spring 3
In the deep-slotted chip breaker 5-1 at middle part.When loading connecting pin 5, the external cylindrical surface of connecting pin 5 promotes to the right alignment pin 4, and holddown spring 3,
When the deep-slotted chip breaker 5-1 at the middle part of connecting pin 5 reaches 4 position of alignment pin, spring 3 promotes alignment pin 4, the left side of alignment pin 4 to the left
The spherical 4-1 of the protrusion at end is fallen into the deep-slotted chip breaker 5-1 at the middle part of connecting pin 5, so as to which extension bar 6 and taper shank 1 be linked together.
When releasing connecting pin 5, the external cylindrical surface of connecting pin 5 promotes to the right alignment pin 4, and holddown spring 3, you can by extension bar 6 and taper shank 1
Take apart, operation facility.When the center line of boring mould bracket 9 of machine tool chief axis center line and boring machine such as offsets or deflected at the malalignment error
When, taper shank 1 can realize micro floating, the amount of floating with extension bar 6 by connecting pin 5, alignment pin 4, spring 3, hemispherical head screw 2
Depending on the size of radial clearance distance H between the right-hand member external cylindrical surface of extension bar 6 and the horizontal blind hole 1-1 hole walls of the left end of taper shank 1, this reality
It is 0.6mm to apply a clearance distance H.
Guider includes the guide sleeve 11, sleeve 10, boring mould bracket 9 for being placed on the peripheral surface of extension bar 6, and boring mould bracket 9 is installed on
Boring machine, a circle flange 11-1 is circumferentially with along guide sleeve 11, gland 12 is cased with respectively at the both ends of guide sleeve 11, at both ends
Bearing 21 is respectively equipped between gland 12 and flange 11-1, bearing 21 is supported between guide sleeve 11 and boring mould bracket 9, and sleeve 10 is set
It is placed between the bearing 21 at both ends and the both ends of sleeve 10 is butted on the outer ring of bearings at both ends 21 respectively, sleeve 10 is matched with boring mould bracket
In 9, the nut 13 for being butted on the end of gland 12 is threaded with respectively at the both ends of guide sleeve 11, the circumference of gland 12 point at both ends
Other gap is combined with the end cap 7 being connected with boring mould bracket 9, and the end of both ends end cap 7 is butted on the outer ring of bearings at both ends 21 respectively.
Guide groove 6-3 is machined with extension bar 6, guider screw 8 is housed on guide sleeve 11, guider screw 8 screws in guide sleeve 11
Screwed hole in, the guide cylinder 8-1 of the lower end of guider screw 8 is moved in the guide groove 6-3 of extension bar 6, it is ensured that extension bar 6 with
Between guide sleeve 11 only relative movement and without relative rotation, so as to ensure that extension bar 6 keeps fixed angle for guide sleeve 11
Position, advantageously ensure that the stability of machining accuracy.Guide sleeve 11 rotates with bearing 21, and bearing 21 selects angular contact ball
Bearing, two bearings 21 are arranged on guide sleeve 11, are filled lubricating grease at each bearing 21 during assembling, are easy to the profit of bearing 21
It is sliding.This configuration can increase its supporting rigidity, and bearing 21 can bear bi-directional axial load, and precision is high, and non-deformability is big；Work as axle
During by thermal stretching, the increase of the clearance of bearing 21, bearing 21 will not be stuck.
Gland 12 is against the inner ring of bearing 21, and is compressed gland 12 by nut 13.It is equipped between end cap 7 and gland 12
Felt collar 20 is sealed, to reach the purpose of sealing.Adjusting washer 22 is housed, reconditioning adjusting washer 22 is with guarantor between end cap 7 and boring mould bracket 9
The outer ring that end cap 7 compresses bearing 21 is demonstrate,proved, end cap 7 is fixed on to the both ends of boring mould bracket 9 by attachment screw 2 23.
The left end of extension bar 6 is provided with groove 6-4, coordinates with the raised 14-1 of the right-hand member of boring bar 14, will by attachment screw 1
Boring bar 14 links together with extension bar 6.
Being provided with two axis and the radial direction of boring bar 14 along the side of the axial surface of boring bar 14 has the boring cutter mounting hole 14-2 of angle,
Angle α between the present embodiment boring cutter mounting hole 14-2 axis and the radial direction of boring bar 14 is 30 °, is installed in boring cutter mounting hole 14-2
There is boring cutter 17, boring cutter 17 is fixed on boring bar 14 by two hexagon socket head housing screws 18, in boring cutter mounting hole 14-2 internal threads
Adjusting screw 15 is connected with, adjusting screw 15 is against the end of boring cutter 17, and the position of boring cutter 17 can be adjusted by adjusting screw 15
Put.
For the present invention when to 16 bore hole of workpiece, the cone segments 1-3 of taper shank 1 is fixed on boring spindle, when in process,
When machine tool chief axis center line and the center line of boring mould bracket 9 such as offset or deflected at the malalignment error, taper shank 1 can lead to extension bar 6
Cross connecting pin 5, alignment pin 4, spring 3, hemispherical head screw 2 and realize micro floating, play autoregulation, improve adding for bore hole
Work precision.Extension bar 6 is convenient to mount and dismount with taper shank 1, and only need to be pushed into or release connecting pin 5 can be assembled together extension bar 6 and taper shank 1
Or take apart, operation facility.
It is oriented between extension bar 6 and guide sleeve 11 by guider screw 8, guider screw 8 moves in the guide groove 6-3 of extension bar 6
It is dynamic, it is ensured that extension bar 6 is in the interior only relative movement of guide sleeve 11 and without relative rotation, so as to ensure extension bar 6 for guide sleeve
11 keep fixed angle position, advantageously ensure that the stability of crudy.Guide sleeve 11 rotates with bearing 21, and two
Individual angular contact ball bearing 21 is arranged on guide sleeve 11, and reconditioning adjusting washer 22 can ensure that end cap 7 compresses the outer ring of bearing 21,
Gland 12 is pressed on to the inner ring of bearing 21 by nut 13, this configuration can increase the supporting rigidity of bearing 21.
Using boring bar 14 and the structure of the split of extension bar 6, assembly and disassembly are easy, simple in construction, safeguard facility, heavy boring, half right boring, essence
The present invention can be used during borer part, only need to change different boring bars 14.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, it is all in the spiritual and former of the present invention
Within then, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (9)
1. a kind of combination boring bar device being conveniently adjusted, is installed on boring machine, it is characterised in that：Including boring bar, extension bar, float dress
Put, floating installation includes the taper shank, alignment pin, the hemispherical head screw that are connected with boring spindle, is provided with the end of taper shank and taper shank
Coaxial blind hole, one end of extension bar are located in blind hole, and the other end of extension bar is coaxially connected with boring bar, passes through between extension bar and taper shank
Along taper shank and the connection pin connection of extension bar radial direction, on the surface of connecting pin circumferentially arranged with a circle deep-slotted chip breaker, in the end of extension bar
The internal thread hole coaxial with extension bar is provided with vertically, and alignment pin is located in internal thread hole, and hemispherical head screw thread is connected to interior spiral shell
In pit, the head of hemispherical head screw is butted on the bottom of the blind hole of taper shank, and alignment pin one end is provided with the spherical of protrusion, alignment pin
Spherical be matched with the deep-slotted chip breaker of connecting pin, periphery and the tangent cylinder of spherical are additionally provided with alignment pin one end,
Spring is cased with alignment pin, one end of spring is butted on the shaft shoulder of cylinder, and the other end of spring is butted on the tail of hemispherical head screw
Portion, clearance distance is provided between the peripheral surface and blind hole hole wall of extension bar.
A kind of 2. combination boring bar device being conveniently adjusted according to claim 1, it is characterised in that：Also include being oriented to dress
Put, guider includes the guide sleeve, sleeve, boring mould bracket for being placed on extension bar peripheral surface, and boring mould bracket is installed on boring machine, along guide sleeve
Be circumferentially with a circle flange, be cased with gland respectively at the both ends of guide sleeve, be respectively equipped between the gland and flange at both ends
Bearing, between guide sleeve and boring mould bracket, sleeve is arranged between the bearing at both ends bearings, and the both ends of sleeve are supported respectively
In the outer ring of bearings at both ends, sleeve is matched with boring mould bracket, is threaded with respectively at the both ends of guide sleeve and is butted on gland end
Nut, at both ends, gap is combined with the end cap being connected with boring mould bracket to the circumference of gland respectively, and the end of both ends end cap is supported respectively
In the outer ring of bearings at both ends, guide groove is provided with along the axial surface of extension bar, guider screw is threaded with along the radial direction of guide sleeve,
The afterbody of guider screw is located in guide groove.
A kind of 3. combination boring bar device being conveniently adjusted according to claim 1 or 2, it is characterised in that：The circumference of extension bar
Clearance distance between surface and taper shank blind hole hole wall is in the range of 0.5~1mm.
A kind of 4. combination boring bar device being conveniently adjusted according to claim 3, it is characterised in that：Taper shank includes cylindrical end
And cone segments, cone segments are connected with boring spindle, through hole one is radially provided with along cylindrical end, blind hole is located at the end of cylindrical end,
Through hole two is radially provided with along extension bar, connecting pin passes through through hole one, through hole two, internal thread hole and the two vertical phase of through hole of extension bar
It is logical.
A kind of 5. combination boring bar device being conveniently adjusted according to claim 1 or 2, it is characterised in that：Extension bar with
One end of boring bar connection is provided with groove, and the end of boring bar is provided with the projection with fit depressions, passes through company between boring bar and extension bar
Screw one is connect to connect.
A kind of 6. combination boring bar device being conveniently adjusted according to claim 5, it is characterised in that：Along boring bar axial surface
Side radially have the boring cutter mounting hole of angle at least provided with an axis and boring bar, the axis of boring cutter mounting hole with boring bar radially
Between angle be 10 °~45 °, boring cutter is installed in boring cutter mounting hole, boring cutter is fixed on boring bar by housing screw, in boring cutter
Mounting hole internal thread is connected with adjusting screw, and the end of boring cutter is in contact with adjusting screw.
A kind of 7. combination boring bar device being conveniently adjusted according to claim 2, it is characterised in that：End cap is by connecting spiral shell
Nail two is connected with boring mould bracket, and adjusting washer is provided between end cap and boring mould bracket.
A kind of 8. combination boring bar device being conveniently adjusted according to claim 2, it is characterised in that：In the tail of guider screw
Portion is provided with guide cylinder, and guide cylinder is located in guide groove.
A kind of 9. combination boring bar device being conveniently adjusted according to claim 2, it is characterised in that：End cap and gland it
Between be provided with sealing felt collar.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610483809.3A CN105855578B (en) | 2016-06-28 | 2016-06-28 | A kind of combination boring bar device being conveniently adjusted |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610483809.3A CN105855578B (en) | 2016-06-28 | 2016-06-28 | A kind of combination boring bar device being conveniently adjusted |
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| CN105855578A CN105855578A (en) | 2016-08-17 |
| CN105855578B true CN105855578B (en) | 2017-12-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107280074A (en) * | 2017-07-19 | 2017-10-24 | 深圳市华玉科技发展有限公司 | It is a kind of to limit the cigarette case that angle opens or closes cigarette device with rotation |
| CN107755739B (en) * | 2017-10-31 | 2024-04-16 | 长虹华意压缩机股份有限公司 | Compressor crankcase Cylinder bore processing equipment |
| CN108127138A (en) * | 2017-12-29 | 2018-06-08 | 浙江固柏电力科技有限公司 | A kind of hardware precision part processing drilling equipment |
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| WO2015158820A1 (en) * | 2014-04-17 | 2015-10-22 | Seco Tools Ab | Floating connection for a tool and a boring device |
| CN205702515U (en) * | 2016-06-28 | 2016-11-23 | 常州信息职业技术学院 | A kind of combination boring bar device being conveniently adjusted |
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| CN102665979A (en) * | 2009-11-25 | 2012-09-12 | 钴碳化钨硬质合金公司 | Toolholder connector and associated system |
| CN202317790U (en) * | 2011-11-26 | 2012-07-11 | 江阴双马环保科技有限公司 | Boring bar floating device |
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