CN105855578A - Combined boring rod device convenient to adjust - Google Patents
Combined boring rod device convenient to adjust Download PDFInfo
- Publication number
- CN105855578A CN105855578A CN201610483809.3A CN201610483809A CN105855578A CN 105855578 A CN105855578 A CN 105855578A CN 201610483809 A CN201610483809 A CN 201610483809A CN 105855578 A CN105855578 A CN 105855578A
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- CN
- China
- Prior art keywords
- boring
- hole
- bar
- extension bar
- screw
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Classifications
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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
Abstract
The invention relates to a combined boring rod device convenient to adjust. The combined boring rod device comprises a boring rod, a connecting rod and a floating device, the floating device comprises a conical handle connected with a boring machine spindle, a positioning pin and a semispherical screw, one end of the connecting rod is positioned in a blind hole at the end of the conical handle while the other end of the same is connected with the boring rod, the connecting rod and the conical handle are connected through a radial connecting pin, an internal thread hole is formed in the end of the connecting rod, the positioning pin is positioned in the internal thread hole, the semispherical screw is connected in the internal thread hole in a threaded manner, the head of the semispherical screw is abutted against the bottom of the blind hole, a spherical face protruding at one end of the positioning pin is matched in an arc-shaped groove in the peripheral surface of a connecting pin, a spring sleeves the positioning pin, one end of the spring is abutted against a shaft shoulder of the positioning pin while the other end of the same is abutted against the bottom of the semispherical screw, and a gap distance is formed between the peripheral surface of the connecting rod and the wall of the blind hole. The boring rod and the connecting rod are of a split structure, so that the combined boring rod device is easy to mount and demount, flexible to operate and convenient to maintain, boring accuracy is improved, stability of machining stability is guaranteed, and machining efficiency is improved.
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 prior art, boring bar is usually monoblock type boring bar, manufactures more complicated, and required precision is higher, needs the size according to processed bore dia, change the boring bar of different-diameter time actually used；When boring deep hole, boring bar requires that rigidity, intensity to be got well, and needs shaping-orientation device to guide boring bar.Therefore, when heavy boring, half right boring and right boring workpiece, it is necessary to change different boring bars and boring bar guide device, manufacturing cost is high, it is complex to install, labor efficiency is low.Common boring bar is fixed with machine tool chief axis, it is impossible to the error that elimination spindle centerline and fixture guide sleeve centerline hole cause due to angle or deviation, boring precision is low, it is impossible to meet production requirement.
Summary of the invention
For solving the problems referred to above, the present invention provides a kind of combination boring bar device being conveniently adjusted, and uses the structure of boring bar and extension bar split, simple in construction, mounting or dismounting easily, flexible operation, maintenance convenient, improve the machining accuracy of bore hole, it is ensured that the stability of crudy, improve working (machining) efficiency.
For achieving the above object, the technical scheme that the present invention takes is:
nullA kind of combination boring bar device being conveniently adjusted，It is installed on boring machine，Including boring bar、Extension bar、Floating installation，Floating installation includes the taper shank being connected with boring spindle、Alignment pin、Hemispherical head screw，It is provided with the blind hole coaxial with taper shank in the end of taper shank，One end of extension bar is positioned at blind hole，The other end of extension bar is coaxially connected with boring bar，By being connected along taper shank and extension bar connecting pin radially between extension bar with taper shank，On the surface of connecting pin circumferentially arranged with a circle arcuate groove，The internal thread hole coaxial with extension bar it is provided with vertically in the end of extension bar，Alignment pin is positioned at internal thread hole，Hemispherical head screw thread is connected in internal thread hole，The head of hemispherical head screw is butted on the bottom of the blind hole of taper shank，Alignment pin one end is provided with the spherical of protrusion，The spherical of alignment pin is matched with in the arcuate groove of connecting pin，The cylinder that periphery is tangent with spherical it is additionally provided with in alignment pin one end，Alignment pin is cased with spring，One end of spring is butted on the shaft shoulder of cylinder，The other end of spring is butted on the afterbody of hemispherical head screw，It is provided with clearance distance between peripheral surface and the blind hole hole wall of extension bar.
nullAlso include guider，Guider includes the fairlead being placed on extension bar peripheral surface、Sleeve、Boring mould bracket，Boring mould bracket is installed on boring machine，It is circumferentially with a circle flange along fairlead，Gland it is cased with respectively at the two ends of fairlead，It is respectively equipped with bearing between the gland and flange at two ends，Bearings is between fairlead and boring mould bracket，Sleeve is arranged between the bearing at two ends，And the two ends of sleeve are butted on the outer ring of bearings at both ends respectively，Sleeve is matched with in boring mould bracket，The most threaded at the two ends of fairlead have the nut being butted on gland end，Circumference matched in clearance respectively at two ends gland has the end cap being connected with boring mould bracket，The end of two ends end cap is butted on the outer ring of bearings at both ends respectively，Axial surface along extension bar is provided with gathering sill，Radial direction along fairlead is threaded guider screw，The afterbody of guider screw is positioned at gathering sill.
Clearance distance between peripheral surface and the 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 is connected with boring spindle, is radially provided with through hole one along cylindrical end, blind hole is located at the end of cylindrical end, being radially provided with through hole two along extension bar, connecting pin passes through hole one, through hole two, and the internal thread hole of extension bar is vertical with through hole two to be communicated.
Being provided with groove in one end being connected with boring bar of extension bar, the end of boring bar is provided with the projection with fit depressions, is connected by attachment screw one between boring bar with extension bar.
Radially there is the boring cutter installing hole of angle at least provided with an axis and boring bar along the side of boring bar axial surface, angle between the axis of boring cutter installing hole and boring bar radial direction is 10 °～45 °, in boring cutter installing hole, boring cutter is installed, boring cutter is fixed on boring bar by housing screw, connecting at boring cutter installing hole female thread and have adjustment screw, the end of boring cutter contacts with adjusting screw.
End cap is connected with boring mould bracket by attachment screw two, is provided with adjustment packing ring between end cap and boring mould bracket.
Afterbody at guider screw is provided with guide cylinder, and guide cylinder is positioned at gathering sill.
Sealing felt collar it is provided with between end cap and gland.
A kind of combination boring bar device being conveniently adjusted of the present invention, uses the structure of boring bar and extension bar split, and mounting or dismounting are easy, simple in construction, and it is convenient to safeguard, all can use the present invention when heavy boring, half right boring, right boring workpiece, only need to change different boring bars.When machine tool chief axis centrage and boring mould bracket centrage offset or during the malalignment error such as deflection, taper shank can be realized trace and be floated by connecting pin, alignment pin, spring, hemispherical head screw with extension bar, play autoregulation, improving the machining accuracy of bore hole, the amount of floating depends on the size of radial clearance distance between extension bar right-hand member external cylindrical surface and taper shank left end horizontal blind hole hole wall.Extension bar is convenient to mount and dismount with taper shank, and only need to push or release connecting pin can be assembled together extension bar with taper shank or take apart, and operation is convenient.Guided by guider screw between extension bar and fairlead, guider screw moves in the gathering sill of extension bar, can ensure that extension bar in fairlead only relative movement and without relatively rotating, thus ensure that extension bar keeps fixing angle position, advantageously ensuring that the stability of crudy for fairlead.Fairlead rotates with bearing, and two angular contact ball bearings are arranged on fairlead, and reconditioning adjusts packing ring and can ensure that end cap compresses the outer ring of bearing, and gland is pressed on the inner ring of bearing by nut.This configuration can increase the supporting rigidity of bearing, and bearing can bear bi-directional axial load, and precision is high, and non-deformability is big；When axle is by thermal stretching, bearing clearance increases, and bearing will not be stuck.The left end of extension bar is machined with groove, with the male cooperation of boring bar right-hand member, is linked together with extension bar by boring bar by attachment screw one.Can adjust the position of boring cutter by adjusting screw equipped with one or more groups boring cutter, boring cutter can be fixed on boring bar by two hexagon socket head housing screws, the processing of multiple working procedure can be completed simultaneously as required on boring bar.
Present configuration is simple, mounting or dismounting are easy, flexible operation, maintenance facility, improves the machining accuracy of bore hole, it is ensured that the stability of crudy, improves working (machining) efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structure for amplifying schematic diagram at floating installation assembling.
In figure: taper shank 1, blind hole 1-1, cylindrical end 1-2, cone segments 1-3, through hole one 1-4, hemispherical head screw 2, spring 3, alignment pin 4, spherical 4-1, shaft shoulder 4-2, cylinder 4-3, connecting pin 5, arcuate groove 5-1, extension bar 6, through hole two 6-1, internal thread hole 6-2, gathering sill 6-3, groove 6-4, end cap 7, guider screw 8, guide cylinder 8-1, boring mould bracket 9, sleeve 10, fairlead 11, flange 11-1, gland 12, nut 13, boring bar 14, protruding 14-1, boring cutter installing hole 14-2, adjust screw 15, workpiece 16, boring cutter 17, housing screw 18, attachment screw 1, seal felt collar 20, bearing 21, adjust packing ring 22, attachment screw 2 23.
Detailed description of the invention
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, it is installed on boring machine, including boring bar 14, extension bar 6, floating installation, guider, taper shank 1 that floating installation includes being connected with boring spindle, alignment pin 4, hemispherical head screw 2, blind hole 1-1 coaxial with taper shank 1 it is provided with in the end of taper shank 1, one end of extension bar 6 is positioned at blind hole 1-1, and the other end of extension bar 6 is coaxially connected with boring bar 14.
Taper shank 1 includes cylindrical end 1-2 and cone segments 1-3, cone segments 1-3 is connected with boring spindle, it is radially provided with through hole one 1-4 along cylindrical end 1-2, blind hole 1-1 is located at the end of cylindrical end 1-2, it is radially provided with through hole two 6-1 along extension bar 6, connecting pin 5, through through hole one 1-4, through hole two 6-1, is provided with the internal thread hole 6-2 coaxial with extension bar 6 vertically in the right part of extension bar 6, and the internal thread hole 6-2 of extension bar 6 is vertical with through hole two 6-1 to be communicated.
Alignment pin 4 is positioned at internal thread hole 6-2, the left end external cylindrical surface of hemispherical head screw 2 is machined with external screw thread, hemispherical head screw 2 screws in the internal thread hole 6-2 of extension bar 6 right-hand member, and the right-hand member head of hemispherical head screw 2 is sphere, and this sphere withstands on the bottom surface of taper shank 1 horizontal blind hole 1-1 of left end.Middle part surface at connecting pin 5 encloses arcuate groove 5-1 circumferentially arranged with one, equipped with cylindroid helical-coil compression spring 3 on the external cylindrical surface of alignment pin 4 right-hand member, alignment pin 4 one end is provided with the spherical 4-1 of protrusion, it is additionally provided with the cylinder 4-3 tangent with spherical in alignment pin 4 one end, the left end of spring 3 is against on the shaft shoulder 4-2 of cylinder 4-3, the right-hand member of spring 3 is against the left end afterbody of hemispherical head screw 2, is withstood in the arcuate groove 5-1 in the middle part of connecting pin 5 by the spherical 4-1 of the protrusion of alignment pin 4 left end by spring 3.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 arcuate groove 5-1 in the middle part of connecting pin 5 arrives alignment pin 4 position, spring 3 promotes alignment pin 4 to the left, the spherical 4-1 of the protrusion of alignment pin 4 left end falls in the arcuate groove 5-1 in the middle part of connecting pin 5, thus is linked together with taper shank 1 by extension bar 6.When releasing connecting pin 5, the external cylindrical surface of connecting pin 5 promotes to the right alignment pin 4, and holddown spring 3, can be taken apart with taper shank 1 by extension bar 6, and operation is convenient.When boring mould bracket 9 centrage of machine tool chief axis centrage Yu boring machine offsets or during the malalignment error such as deflection, taper shank 1 can be realized trace with extension bar 6 floated by connecting pin 5, alignment pin 4, spring 3, hemispherical head screw 2, the amount floated depends on the size of radial clearance distance H between extension bar 6 right-hand member external cylindrical surface and taper shank 1 left end horizontal blind hole 1-1 hole wall, and the present embodiment clearance distance H is 0.6mm.
nullGuider includes the fairlead 11 being placed on extension bar 6 peripheral surface、Sleeve 10、Boring mould bracket 9，Boring mould bracket 9 is installed on boring machine，It is circumferentially with a circle flange 11-1 along fairlead 11，Gland 12 it is cased with respectively at the two ends of fairlead 11，It is respectively equipped with bearing 21 between the gland 12 and flange 11-1 at two ends，Bearing 21 is supported between fairlead 11 and boring mould bracket 9，Sleeve 10 is arranged between the bearing 21 at two ends and the two ends of sleeve 10 are butted on the outer ring of bearings at both ends 21 respectively，Sleeve 10 is matched with in boring mould bracket 9，The most threaded at the two ends of fairlead 11 have the nut 13 being butted on gland 12 end，Circumference matched in clearance respectively at two ends gland 12 has the end cap 7 being connected with boring mould bracket 9，The end of two ends end cap 7 is butted on the outer ring of bearings at both ends 21 respectively.
Gathering sill 6-3 it is machined with on extension bar 6, equipped with guider screw 8 on fairlead 11, guider screw 8 screws in the screwed hole of fairlead 11, guide cylinder 8-1 of guider screw 8 lower end moves in the gathering sill 6-3 of extension bar 6, can ensure that between extension bar 6 and fairlead 11 only relative movement and without relatively rotating, thus ensure that extension bar 6 keeps the angle position fixed for fairlead 11, advantageously ensure that the stability of machining accuracy.Fairlead 11 rotates with bearing 21, and angular contact ball bearing selected by bearing 21, and two bearings 21 are arranged on fairlead 11, fill grease, it is simple to the lubrication of bearing 21 during assembling at each bearing 21.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；When axle is by thermal stretching, bearing 21 play increases, and bearing 21 will not be stuck.
Gland 12 is against the inner ring of bearing 21, and is compressed by gland 12 by nut 13.Equipped with sealing felt collar 20 between end cap 7 and gland 12, to reach the purpose sealed.Equipped with adjusting packing ring 22 between end cap 7 and boring mould bracket 9, reconditioning adjusts packing ring 22 and compresses the outer ring of bearing 21 with guarantee end cap 7, and end cap 7 is fixed on the two 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 protruding 14-1 of boring bar 14 right-hand member, is linked together with extension bar 6 by boring bar 14 by attachment screw 1.
Side along boring bar 14 axial surface is provided with two axis radially the boring cutter installing hole 14-2 of angle with boring bar 14, angle α between the axis of the present embodiment boring cutter installing hole 14-2 and boring bar 14 radial direction is 30 °, in boring cutter installing hole 14-2, boring cutter 17 is installed, boring cutter 17 is fixed on boring bar 14 by two hexagon socket head housing screws 18, connect at boring cutter installing hole 14-2 female thread and have adjustment screw 15, adjust screw 15 and be against the end of boring cutter 17, the position of boring cutter 17 can be adjusted by adjusting screw 15.
The present invention is when to workpiece 16 bore hole, cone segments 1-3 of taper shank 1 is fixed on boring spindle, when in the course of processing, machine tool chief axis centrage and boring mould bracket 9 centrage offset or during the malalignment error such as deflection, taper shank 1 and extension bar 6 can pass through connecting pin 5, alignment pin 4, spring 3, hemispherical head screw 2 realize trace floating, play autoregulation, improve the machining accuracy of bore hole.Extension bar 6 is convenient to mount and dismount with taper shank 1, and only need to push or release connecting pin 5 can be assembled together extension bar 6 with taper shank 1 or take apart, and operation is convenient.
Guided by guider screw 8 between extension bar 6 and fairlead 11, guider screw 8 moves in the gathering sill 6-3 of extension bar 6, can ensure that extension bar 6 in fairlead 11 only relative movement and without relatively rotating, thus ensure that extension bar 6 keeps the angle position fixed for fairlead 11, advantageously ensure that the stability of crudy.Fairlead 11 rotates with bearing 21, two angular contact ball bearings 21 are arranged on fairlead 11, reconditioning adjusts packing ring 22 and can ensure that end cap 7 compresses the outer ring of bearing 21, and gland 12 is pressed on the inner ring of bearing 21 by nut 13, and this configuration can increase the supporting rigidity of bearing 21.
Using the structure of boring bar 14 and extension bar 6 split, mounting or dismounting are easy, simple in construction, and it is convenient to safeguard, all can use the present invention when heavy boring, half right boring, right boring workpiece, only need to change different boring bars 14.
The foregoing is only the preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (9)
- null1. the combination boring bar device that a kind is conveniently adjusted，It is installed on boring machine，It is characterized in that: include boring bar、Extension bar、Floating installation，Floating installation includes the taper shank being connected with boring spindle、Alignment pin、Hemispherical head screw，It is provided with the blind hole coaxial with taper shank in the end of taper shank，One end of extension bar is positioned at blind hole，The other end of extension bar is coaxially connected with boring bar，By being connected along taper shank and extension bar connecting pin radially between extension bar with taper shank，On the surface of connecting pin circumferentially arranged with a circle arcuate groove，The internal thread hole coaxial with extension bar it is provided with vertically in the end of extension bar，Alignment pin is positioned at internal thread hole，Hemispherical head screw thread is connected in internal thread hole，The head of hemispherical head screw is butted on the bottom of the blind hole of taper shank，Alignment pin one end is provided with the spherical of protrusion，The spherical of alignment pin is matched with in the arcuate groove of connecting pin，The cylinder that periphery is tangent with spherical it is additionally provided with in alignment pin one end，Alignment pin is cased with spring，One end of spring is butted on the shaft shoulder of cylinder，The other end of spring is butted on the afterbody of hemispherical head screw，It is provided with clearance distance between peripheral surface and the blind hole hole wall of extension bar.
- nullA kind of combination boring bar device being conveniently adjusted the most according to claim 1，It is characterized in that: also include guider，Guider includes the fairlead being placed on extension bar peripheral surface、Sleeve、Boring mould bracket，Boring mould bracket is installed on boring machine，It is circumferentially with a circle flange along fairlead，Gland it is cased with respectively at the two ends of fairlead，It is respectively equipped with bearing between the gland and flange at two ends，Bearings is between fairlead and boring mould bracket，Sleeve is arranged between the bearing at two ends，And the two ends of sleeve are butted on the outer ring of bearings at both ends respectively，Sleeve is matched with in boring mould bracket，The most threaded at the two ends of fairlead have the nut being butted on gland end，Circumference matched in clearance respectively at two ends gland has the end cap being connected with boring mould bracket，The end of two ends end cap is butted on the outer ring of bearings at both ends respectively，Axial surface along extension bar is provided with gathering sill，Radial direction along fairlead is threaded guider screw，The afterbody of guider screw is positioned at gathering sill.
- A kind of combination boring bar device being conveniently adjusted the most according to claim 1 and 2, it is characterised in that: the clearance distance between peripheral surface and the taper shank blind hole hole wall of extension bar is in the range of 0.5～1mm.
- A kind of combination boring bar device being conveniently adjusted the most according to claim 3, it is characterized in that: taper shank includes cylindrical end and cone segments, cone segments is connected with boring spindle, it is radially provided with through hole one along cylindrical end, blind hole is located at the end of cylindrical end, being radially provided with through hole two along extension bar, connecting pin passes through hole one, through hole two, and the internal thread hole of extension bar is vertical with through hole two to be communicated.
- A kind of combination boring bar device being conveniently adjusted the most according to claim 1 and 2, it is characterized in that: be provided with groove in one end being connected with boring bar of extension bar, the end of boring bar is provided with the projection with fit depressions, is connected by attachment screw one between boring bar with extension bar.
- A kind of combination boring bar device being conveniently adjusted the most according to claim 5, it is characterized in that: radially have the boring cutter installing hole of angle at least provided with an axis and boring bar along the side of boring bar axial surface, angle between the axis of boring cutter installing hole and boring bar radial direction is 10 °～45 °, in boring cutter installing hole, boring cutter is installed, boring cutter is fixed on boring bar by housing screw, connecting at boring cutter installing hole female thread and have adjustment screw, the end of boring cutter contacts with adjusting screw.
- A kind of combination boring bar device being conveniently adjusted the most according to claim 2, it is characterised in that: end cap is connected with boring mould bracket by attachment screw two, is provided with adjustment packing ring between end cap and boring mould bracket.
- A kind of combination boring bar device being conveniently adjusted the most according to claim 2, it is characterised in that: the afterbody at guider screw is provided with guide cylinder, and guide cylinder is positioned at gathering sill.
- A kind of combination boring bar device being conveniently adjusted the most according to claim 2, it is characterised in that: between end cap and gland, it is provided with sealing felt collar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| 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 |
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| 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 true CN105855578A (en) | 2016-08-17 |
| CN105855578B CN105855578B (en) | 2017-12-15 |
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| CN201610483809.3A Active CN105855578B (en) | 2016-06-28 | 2016-06-28 | A kind of combination boring bar device being conveniently adjusted |
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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 |
| CN107755739A (en) * | 2017-10-31 | 2018-03-06 | 华意压缩机股份有限公司 | A kind of compressor crankcase cylinder hole 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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| CN105855578B (en) | 2017-12-15 |
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