CN110270698A - A kind of combined boring cutter rolling tool - Google Patents

A kind of combined boring cutter rolling tool Download PDF

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Publication number
CN110270698A
CN110270698A CN201910588658.1A CN201910588658A CN110270698A CN 110270698 A CN110270698 A CN 110270698A CN 201910588658 A CN201910588658 A CN 201910588658A CN 110270698 A CN110270698 A CN 110270698A
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CN
China
Prior art keywords
rolling
support
tool
mandrel
retainer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201910588658.1A
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Chinese (zh)
Other versions
CN110270698B (en
Inventor
姜丽娟
李山
付庆龙
童卫民
钱锡金
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou Changhang Machinery Manufacturing Co Ltd
Original Assignee
Hangzhou Changhang Machinery Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hangzhou Changhang Machinery Manufacturing Co Ltd filed Critical Hangzhou Changhang Machinery Manufacturing Co Ltd
Priority to CN201910588658.1A priority Critical patent/CN110270698B/en
Publication of CN110270698A publication Critical patent/CN110270698A/en
Application granted granted Critical
Publication of CN110270698B publication Critical patent/CN110270698B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B27/00Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B27/00Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/14Cutting tools of which the bits or tips or cutting inserts are of special material
    • B23B27/16Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
    • B23B27/1644Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped with plate-like cutting inserts of special shape clamped by a clamping member acting almost perpendicularly on the chip-forming plane and at the same time upon the wall of a hole in the cutting insert
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P9/00Treating or finishing surfaces mechanically, with or without calibrating, primarily to resist wear or impact, e.g. smoothing or roughening turbine blades or bearings; Features of such surfaces not otherwise provided for, their treatment being unspecified
    • B23P9/02Treating or finishing by applying pressure, e.g. knurling

Abstract

The invention discloses a kind of combined boring tool rolling tools, including mandrel, cutting portion, support portion and rolling portion, cutting portion, support portion and rolling portion are sequentially coaxially arranged on mandrel, wherein: cutting portion includes the tool tip blade different with several radiuss of clean-up, the front end of tool tip is arranged in the blade of minimum radius of clean-up, remaining blade is sequentially arranged at the position rearward of tool tip according to radius of clean-up from small to large;Support portion is arranged between cutting portion and rolling portion, including retainer and several support columns, retainer are set on mandrel, and support column is arranged on retainer;The rear end of mandrel is arranged in rolling portion.It the advantage is that, the present invention sets gradually cutting portion, support portion and rolling portion on same mandrel, once completes rough turn, smart car and rolling technology, is not necessarily to diverter tool and again clamping, avoids error caused by clamping again, improve processing efficiency and precision.

Description

A kind of combined boring cutter rolling tool
Technical field
The present invention relates to inner hole of pipe process equipment more particularly to a kind of combined boring tool rolling tools.
Background technique
Traditional handicraft is generally required when processing the elongated hole of seamless tubing workpiece by processes such as first boring, right boring, grindings It can be only achieved required technique requirement.And clamping will necessarily bring certain shape to the workpiece carried out between process and process again Shape location error and scale error, are difficult to ensure so as to cause machining accuracy.
Summary of the invention
For overcome the deficiencies in the prior art, the purpose of the present invention is to provide a kind of combined boring rolling cutter, one Rough turn, smart car and rolling three process can be realized in secondary clamping, improves efficiency, reduces transition number, saved cost.
The purpose of the present invention adopts the following technical scheme that realization:
A kind of combined boring tool rolling tool, including mandrel, cutting portion, support portion and rolling portion, it is the cutting portion, described Support portion and the rolling portion are sequentially coaxially arranged on the mandrel, in which:
The cutting portion includes the tool tip blade different with several radiuss of clean-up, and the blade of minimum radius of clean-up is set It sets in the front end of the tool tip, remaining described blade is sequentially arranged at the tool tip according to radius of clean-up from small to large Position rearward;
The support portion is arranged between the cutting portion and the rolling portion, including retainer and several support columns, institute It states retainer to be arranged on the mandrel, the support column is arranged on the retainer;
The rear end of mandrel, including several rollers, rolling retainer and pressure tapered sleeve, the pressure is arranged in the rolling portion Tapered sleeve is fixedly connected with the mandrel, and the rolling retainer is set in outside the pressure tapered sleeve, and the roller is embedded in the rolling Retainer is pressed, inside and the male cone (strobilus masculinus) of the pressure tapered sleeve offset.
Further, the tool tip include can toolsetting portion, it is described can toolsetting portion include adjustable insert seat, adjusting nut and lock Tight bolt, the adjustable insert seat are connect by the lock screw with the tool tip, and are cut by adjusting nut adjusting Cut radius.
Further, the mandrel includes tool tip mounting portion, and the tool tip mounting portion is cone, passes through first axle Key is fixedly connected with the tool tip.
Further, the support portion further includes support sleeve, and the support sleeve is arranged on the mandrel, and passes through second Axle key and locking nut are connect with the mandrel, and the retainer is set in outside the support sleeve, are arranged on the retainer Several support columns offset with the support sleeve, between the retainer and the mandrel be equipped with first bearing.
Further, the support portion further includes nylon support ring and second bearing, and the nylon support ring is arranged in institute It states on the rear end of tool tip, the second bearing is arranged between the nylon support ring and the tool tip.
Further, the nylon support ring and the second bearing are connected by bakelite locking nut and the tool tip Connect, the bakelite locking nut is threadedly coupled with the tool tip, setting the nylon support ring and the second bearing it Afterwards.
Further, rotating bearing ball is equipped between the bakelite locking nut and the retainer.
Further, the roller in the rolling portion is taper roller, and big end is arranged towards the cutting portion, the pressure cone The small end of set is arranged towards the cutting portion;Elastic part, the elastic part are additionally provided between the rolling portion and the support portion It adjusting and encloses including body, elastic component, elastic component support sleeve and elastic component, the elastic component support sleeve is set in the mandrel, The elastic component is arranged between the body and the elastic component support sleeve, and one end offsets with the elastic component support sleeve, separately One end offsets with elastic component adjustment circle, and the side of the body towards the rolling retainer is equipped with accommodating chamber, the appearance Chamber of receiving is adapted with the rolling retainer, and the rolling retainer offsets with elastic component adjustment circle, and in the elasticity Enter or exit the accommodating chamber under part effect.
Further, 3rd bearing is equipped between the retainer and the elastic component support sleeve, the body setting exists On the outside of the elastic component support sleeve, fourth bearing is equipped between the body and the elastic component support sleeve;The elastic component tune 5th bearing is equipped between whole circle and the rolling retainer.
Further, the mandrel is equipped with flat formula taper shank far from one end of cutting portion and annular convex platform, annular convex platform are used for It is connect by de- stem nut with main rod body.
Compared with prior art, the beneficial effects of the present invention are:
The present invention sets gradually cutting portion, support portion and rolling portion on same mandrel, is cut using the difference on cutting portion The blade for cutting radius is sequentially completed the rough turn and smart car of inner hole of workpiece, then completes rolling technology using rolling portion, without switching Tool and again clamping avoid error caused by clamping again, improve processing efficiency and precision;Meanwhile support portion being arranged Between cutting portion and rolling portion, supporting guide is served to cutting portion and rolling portion, keeps cutter more stable in process, Keep deep hole machining precision higher.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the combined boring rolling cutter of the embodiment of the present invention;
Fig. 2 is the schematic diagram of the section structure in Fig. 1 at A-A;
Fig. 3 is the structural schematic diagram of the cutting portion of the embodiment of the present invention;
Fig. 4 is the structural schematic diagram of another angle of the cutting portion of the embodiment of the present invention.
In figure: 10, mandrel;11, tool tip mounting portion;12, flat formula taper shank;13, annular convex platform;14, stem nut is taken off;20, Cutting portion;21, tool tip;22, blade;23, mounting groove;It 24, can toolsetting portion;241, adjustable insert seat;242, adjusting nut;243, Clamping screw;25, seat slot;26, conical grooves;27, the first axle key;30, support portion;31, retainer;311, through slot;32, it supports Column;33, support sleeve;34, the second axle key;35, nylon support ring;36, second bearing;37, bakelite locking nut;38, bearing rolling Pearl;40, elastic part;41, body;42, spring;43, elastic component support sleeve;44, elastic component adjustment circle;45, accommodating chamber;46, One support block;47, the second support block;48,3rd bearing;49, fourth bearing;50, rolling portion;51, roller;52, retainer is rolled; 53, pressure tapered sleeve;54,5th bearing;55,6th bearing;56, round nut;57,7th bearing.
Specific embodiment
Below with reference to attached drawing, the present invention is described in more detail, it should be noted that lower reference attached drawing is to this The description that invention carries out is only illustrative, and not restrictive.It can be combined with each other between each difference embodiment, with Constitute the other embodiments not shown in the following description.
In the description of the present invention, it should be noted that " transverse direction ", " vertical if any term " center " for the noun of locality To ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The indicating positions such as "bottom", "inner", "outside", " clockwise ", " counterclockwise " and positional relationship are orientation based on the figure or position Relationship is set, the narration present invention is merely for convenience of and simplifies description, rather than the device or element of indication or suggestion meaning are necessary It constructs and operates with specific orientation, with particular orientation, should not be understood as limiting specific protection scope of the invention.
In addition, being used for description purposes only if any term " first ", " second ", it is not understood to indicate or imply relatively heavy The property wanted or the quantity for implicitly indicating technical characteristic." first " is defined as a result, " second " feature can be expressed or implicit include One or more this feature, in the present description, " several " are meant that two or more, unless otherwise clearly having The restriction of body.
In the present invention, except as otherwise clear stipulaties and restriction, should make if any term " assembling ", " connected ", " connection " term Broad sense goes to understand, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected;It is also possible to mechanical connect It connects;It can be directly connected, be also possible to be connected by intermediary, can be and be connected inside two elements.For ability For the those of ordinary skill of domain, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
Referring to attached drawing 1 to attached drawing 4, the combined boring rolling cutter of the embodiment of the present invention will be explained in the following description It is bright.As shown in Fig. 1, the combined boring rolling cutter of the present embodiment includes mandrel 10, cutting portion 20, support portion 30 and rolling Portion 50, cutting portion 20, support portion 30 and rolling portion 50 are sequentially coaxially arranged on mandrel 10, wherein cutting portion 20 includes cutter head The front end of tool tip 21 is arranged in 21 blades 22 different with several radiuss of clean-up of seat, the blade 22 of minimum radius of clean-up, Remaining blade 22 is sequentially arranged at the position rearward of tool tip 21 according to radius of clean-up from small to large;Cutting portion 20 be used for workpiece into The rough turn and smart car of row, more specifically, tool tip 21 are equipped with the mounting groove 23 of several different radiuss of clean-up, and blade 22 passes through spiral shell Different mounting grooves 23 is arranged in silk, and the height of mounting groove 23 is arranged according to radius of clean-up, the smaller mounting groove of radius of clean-up 23 height are higher, and the smallest blade 22 of radius of clean-up is made to touch workpiece at first, and rough turn, then radius of clean-up the is carried out to workpiece Two small blades 22 touch workpiece, are further cut, until the maximum blade of the last one radius of clean-up 22 is to workpiece Inner hole carries out smart car, realizes workpiece from rough turn to the process of smart car;The height of the present embodiment and front end are the same meanings, are tables Show that the front end of tool tip 21 is also the one end for touching workpiece at first, for tool tip 21 itself, is close to workpiece direction The highest mounting groove 23 of height in tool tip 21.In the present embodiment, the maximum blade of radius of clean-up is finishing blade, has been used for At smart car, the lesser several blades of radius of clean-up are roughing blade, rough turn for completing.
Support portion 30 is arranged between cutting portion 20 and rolling portion 50, is used to support and guides cutting portion 20 and rolling portion 50, support portion 30 includes retainer 31 and several support columns 32, and support column 32 is arranged on retainer 31, when processing, cutter into It gives but does not rotate, cutting is realized in workpiece rotation, and support column 32 and retainer 31 are rotated with workpiece, and support portion 30 is opened in workpiece Work only moves axially, and to reduce friction, extends 30 service life of support portion.The present embodiment divides the component of support and rolling It opens, avoids rolling and supporting the realization of roller 51 by rolling portion 50 in the prior art, 51 serious wear of roller, the service life is short, and Support portion 30 and rolling portion 50 are provided separately by the present embodiment, are reduced design accuracy, are facilitated adjustment, be easy in process It finds the problem and repairs.The structure of support column 32 is substantially identical as 51 structure of roller.
The rear end of mandrel 10, including several rollers 51, rolling retainer 52 and pressure tapered sleeve 53, pressure is arranged in rolling portion 50 Power tapered sleeve 53 is fixedly connected with mandrel 10, and rolling retainer 52 is set in outside pressure tapered sleeve 53, the insertion rolling retainer of roller 51 52, inside and the male cone (strobilus masculinus) of pressure tapered sleeve 53 offset.After completing rough turn and smart car, cutter is carried out into stretching, and rolling portion 50 contacts Inner hole of workpiece face after completing smart car, rolls inner hole of workpiece face using roller 51, completes rolling technology.The present embodiment Combined boring rolling cutter can complete three techniques of rough turn, smart car and rolling, convenient and efficient, machining accuracy after clamped one time It is high.
Mounting groove 23 in tool tip 21 can be fixed structure, or bascule, for meeting different processing The demand of size.In order to facilitate processing tool tip 21 and use, the mounting bases of several fixations can be set in tool tip 21, then The movable mounting groove 23 of adjustable cutting radius is set.More specifically, the tool tip 21 of the present embodiment include can toolsetting portion 24, Can toolsetting portion 24 include adjustable insert seat 241, adjusting nut 242 and clamping screw 243, tool tip 21 be equipped with place adjustable insert seat 241 seat slot 25, mounting groove 23 are arranged in adjustable insert seat 241, i.e. blade 22 is fixedly connected with adjustable insert seat 241, adjustable insert seat 241 are connect by lock screw with tool tip 21, and adjust radius of clean-up by adjusting nut 242.Such as 4 institute of attached drawing 2- attached drawing Show, in order to keep cutter head installation more stable, there are two clamping screws 243, is located at the upper and lower part of adjustable insert seat 241, knife Above and below piece 22.When adjusting the radius of clean-up of blade 22, two clamping screws 243 are first unclamped, then adjustment adjusts spiral shell Mother 242 modifies the radius of clean-up of the blade 22 on mounting base adjustable insert seat 241 at a distance from tool tip 21, then screws two locks Tight bolt 243.
Under normal circumstances, the last No.1 blade 22 in tool tip 21 is arranged on adjustable insert seat 241, as attached drawing 3 is shown Specific example in, it is the smallest blade 22 of radius of clean-up, cutting half that 6 blades, 22, No. 6 blades 22 are provided in tool tip 21 The close blade 22 of diameter is symmetricly set in tool tip 21, for example the radius of clean-up of No. 5 blade 22 and No. 6 blades 22 is close, and No. 3 The radius of clean-up of blade 22 and No. 4 blade 22 is close, and the radius of clean-up of No. 1 blade 22 and No. 2 blade 22 is close, wherein No. 1 knife The radius of clean-up of piece 22 is maximum, and No. 1 setting of blade 22 facilitates the hole size of adjustment workpieces processing in adjustable insert seat 241, and No. 1 Blade is 04 jiao of finishing blade, and No. 2 to No. 5 blades are 08 jiao of roughing blade.It is worth noting that, the tool shown in attached drawing 3 Body example cannot be considered as the limitation of structure and protection scope to the present embodiment, and knife number can be arranged in user according to actual needs The position and.
As shown in attached drawing 3 and attached drawing 4, the underlying clamping screw of the adjustable insert seat of the present embodiment 241 243 is in tool tip Threaded hole on 21 is inclined hole, and the power that blade 22 receives when facilitating processing is passed directly to clamping screw 243, and avoiding can toolsetting Seat 241 stress damage is fallen.
As shown in Fig. 1, mandrel 10 includes tool tip mounting portion 11, and tool tip mounting portion 11 is cone, passes through first Axle key 27 is fixedly connected with tool tip 21;The tool tip mounting portion 11 of cone is conducive to improve the same of tool tip 21 and blade 22 Heart degree improves machining accuracy.Tool tip mounting portion 11 is inserted into the conical grooves 26 at 21 center of tool tip, blending bolt locking, cutter head Seat mounting portion 11 and 21 cone match of tool tip facilitate installation, and concentricity is high.
The support portion 30 of the present embodiment plays supporting guide to cutting portion 20 and rolling portion 50, therefore, in order to make to support Column 32 will not damage mandrel 10 in rolling, while play a supportive role to support column 32, and the support portion 30 of the present embodiment further includes branch Support set 33, support sleeve 33 are set on mandrel 10, and are connect by the second axle key 34 and locking nut with mandrel 10, prevent from supporting 33 rotation of set, is conducive to protect mandrel 10, and retainer 31 is set in outside support sleeve 33, and several supports on retainer 31 are arranged in Column 32 offsets with support sleeve 33, and first bearing (not shown) is equipped between retainer 31 and mandrel 10.Due to being provided with first axle It holding, columned support column 32 and retainer 31 are rotated with workpiece, are played a supporting role to entire cutter, and it reduces cutter and shakes, Improve machining accuracy.As shown in Fig. 1, the support portion 30 of the present embodiment includes three support columns 32, is successively embedded in retainer On 31, and the lateral surface of all support columns 32 flushes, and medial surface offsets with support sleeve 33.The support column 32 of the present embodiment can be with It is 1,2,4,5 etc..
Other than support column 32 is hard support, the present embodiment is also provided with soft support.It further include nylon branch in support portion 30 Pushing out ring 35 and second bearing 36, nylon support ring 35 are arranged on the rear end of tool tip 21, and second bearing 36 is arranged in nylon branch Between pushing out ring 35 and tool tip 21, nylon support ring 35 follows workpiece rotation under the action of second bearing 36.Preferably, Two bearings 36 are cylinder roller bearing, keep nylon support ring 35 more stable, support effect is more preferable.The present embodiment is in the front end of cutter It using the soft support of nylon, is made in rear end of 32 rigidity of support column, existing damping effect, and has sufficiently rigid, give processing essence Degree brings guarantee, examines through actual processing, and inner hole of workpiece straightness, circularity, roughness improve one than previous processing technology Grade.
There are many mounting means of nylon support ring 35, in order to realize that unified soft support effect, the present embodiment pass through glue The wooden locking nut 37 is connect with tool tip 21, and bakelite locking nut 37 is threadedly coupled with tool tip 21, is arranged in nylon support ring 35 and second bearing 36 after.
Simultaneously as bakelite locking nut 37 is not rotated with workpiece, and the setting of retainer 31 bakelite locking nut 37 it Afterwards, in order to reduce frictional force, it is equipped with rotating bearing ball 38 between bakelite locking nut 37 and retainer 31, advantageously reduces frictional force With the heating power of generation, the appearance of " bored vehicle " phenomenon is avoided.
As shown in Fig. 1, be additionally provided with elastic part 40 between rolling portion 50 and support portion 30, elastic part 40 include body 41, Elastic component, elastic component support sleeve 43 and elastic component adjustment circle 44, elastic component support sleeve 43 are set in mandrel 10, elastic component setting Between body 41 and elastic component support sleeve 43, one end offsets with elastic component support sleeve 43, the other end and elastic component adjustment circle 44 It offsets, the side of body 41 towards rolling retainer 52 is equipped with accommodating chamber 45, and accommodating chamber 45 is adapted with rolling retainer 52, rolls Pressure retainer 52 offsets with elastic component adjustment circle 44, and enters or exit accommodating chamber 45 under elastic component effect.Preferably, this reality The elastic component for applying example is spring 42, and elastic component support sleeve 43 is equipped with the first support block 46, and elastic component adjustment circle 44 is equipped with second Support block 47,42 one end of spring offset with the first support block 46, and the other end offsets with the second support block 47, at the same elastic component adjustment circle 44 with Rolling retainer 52 offsets.
The roller 51 of the present embodiment carries out axially position by rolling retainer 52, and roller 51 and pressure tapered sleeve 53 move relatively It is dynamic, and rotated in the rolling groove of rolling retainer 52, and roll retainer 52 and offset with elastic component adjustment circle 44, rolling will be kept It is equipped with through slot 311 compatible with pressure tapered sleeve 53 in the inner cavity of device, therefore, in elastic component forced contraction, rolls retainer 52 can move to axial along mandrel 10, while drive roller 51 mobile.The cutter of the present embodiment processing when, roller 51 it is big End first touches inner hole of workpiece face, is rolled, meanwhile, in order to realize that withdrawing rolling portion 50 does not work, the pressure of the present embodiment The small end of tapered sleeve 53 is arranged towards cutting portion 20, when withdrawing, 42 forced compression of spring, and elastic component adjustment 44 retraction accommodating chambers 45 of circle In, rolling retainer 52 follows elastic component adjustment circle 44 mobile, and front end enters in accommodating chamber 45, since rolling retainer 52 is whole Mobile towards 20 direction of cutting portion, then roller 51 is also mobile towards 20 direction of cutting portion, i.e., mobile toward the small end of pressure tapered sleeve 53, To make the diameter in rolling portion 50 reduce, rolling portion 50 does not work, and avoids contacting with inner hole of workpiece wall, damages machined surface, influences Machining accuracy.
In order to reduce the frictional force between elastic part 40 and workpiece, the setting of body 41 is in 43 outside of elastic component support sleeve, set Fourth bearing 49 is equipped between body 41 and elastic component support sleeve 43, the body 41 of elastic part 40 follows workpiece to rotate;In order to reduce Relative friction between elastic part 40 and support portion 30 is equipped with 3rd bearing 48 between retainer 31 and elastic component support sleeve 43, Since retainer 31 and elastic part 40 are closer, first bearing between retainer 31 and mandrel 10 is omitted, and the as on figure Three bearings 48;In order to reduce the relative friction between elastic part 40 and rolling portion 50, elastic component adjustment circle 44 and rolling retainer 5th bearing 54 is equipped between 52.Meanwhile rolling and being equipped with 6th bearing 55 between retainer 52 and mandrel 10, guarantee that rolling is kept The normal rotation of device 52 and roller 51.After rolling retainer 52, if round nut 56 is protected for rolling there are two round nut 56 Holder 52 positions, and 7th bearing 57 is equipped between round nut 56 and rolling retainer 52, two round nuts 56 are convenient for control the 7th The radial tightening power of bearing 57, bearing gyration aperture known in the clothes made of brocade improve precision.
In order to realize that the cutter of the present embodiment is connect with the installation of lathe mobile jib, mandrel 10 is set far from one end of cutting portion 20 There are flat formula taper shank 12 and annular convex platform 13, annular convex platform 13 is used to connect by de- stem nut 14 with main rod body.It preferably, can be with The connection of mandrel 10 and mobile jib is realized by mobile jib coupling sleeve, the cutter of the present embodiment is first by 14 sets of de- stem nut in mandrel 10 On annular convex platform 13, upper rhabd coupling sleeve is then covered on flat formula taper shank 12, mobile jib coupling sleeve is threadedly coupled with de- stem nut 14, And flat formula taper shank 12 plays transmission effect.The one side in annular convex platform 13 towards 20 direction of cutting portion is equipped with arc surface, de- for reducing Contact area when stem nut 14 is locked, to reduce frictional force.
Cutting portion 20, support portion 30 and rolling portion 50 are combined together by the combined boring rolling cutter of the present embodiment, And the soft support of setting is supported with hard, is substantially increased the stability of solid tool, is once being realized rough turn, smart car and rolling technology While, it ensure that machining accuracy, improve processing efficiency, save cost;Meanwhile using elastic part 40, rolling portion 50 is avoided Machined surface is scratched in withdrawing, further ensures machining accuracy.
The above embodiment is only the preferred embodiment of the present invention, and the scope of protection of the present invention is not limited thereto, The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention Claimed range.

Claims (10)

1. a kind of combined boring tool rolling tool, which is characterized in that described to cut including mandrel, cutting portion, support portion and rolling portion Portion, the support portion and the rolling portion is cut sequentially coaxially to be arranged on the mandrel, in which:
The cutting portion includes the tool tip blade different with several radiuss of clean-up, and the blade setting of minimum radius of clean-up exists The front end of the tool tip, remaining described blade are sequentially arranged at the tool tip rearward according to radius of clean-up from small to large Position;
The support portion is arranged between the cutting portion and the rolling portion, including retainer and several support columns, the guarantor It holds frame to be arranged on the mandrel, the support column is arranged on the retainer;
The rear end of mandrel, including several rollers, rolling retainer and pressure tapered sleeve, the pressure tapered sleeve is arranged in the rolling portion It is fixedly connected with the mandrel, the rolling retainer is set in outside the pressure tapered sleeve, and the roller is embedded in the rolling and protects Holder, inside and the male cone (strobilus masculinus) of the pressure tapered sleeve offset.
2. combined boring tool rolling tool as described in claim 1, which is characterized in that the tool tip include can toolsetting portion, institute State can toolsetting portion include adjustable insert seat, adjusting nut and clamping screw, the adjustable insert seat by the lock screw with it is described Tool tip connection, and radius of clean-up is adjusted by the adjusting nut.
3. combined boring tool rolling tool as claimed in claim 1 or 2, which is characterized in that the mandrel includes tool tip peace Dress portion, the tool tip mounting portion are cone, are fixedly connected by the first axle key with the tool tip.
4. combined boring tool rolling tool as claimed in claim 1 or 2, which is characterized in that the support portion further includes support Set, the support sleeve are arranged on the mandrel, and are connect by the second axle key and locking nut with the mandrel, the holding Frame is set in outside the support sleeve, and several support columns being arranged on the retainer offset with the support sleeve, the holding First bearing is equipped between frame and the mandrel.
5. combined boring tool rolling tool as claimed in claim 4, which is characterized in that the support portion further includes nylon support Ring and second bearing, the nylon support ring are arranged on the rear end of the tool tip, and the second bearing is arranged in the Buddhist nun Between imperial support ring and the tool tip.
6. combined boring tool rolling tool as claimed in claim 5, which is characterized in that the nylon support ring and described second Bearing is connect by bakelite locking nut with the tool tip, and the bakelite locking nut is threadedly coupled with the tool tip, if It sets after the nylon support ring and the second bearing.
7. combined boring tool rolling tool as claimed in claim 6, which is characterized in that the bakelite locking nut and the guarantor It holds and is equipped with rotating bearing ball between frame.
8. combined boring tool rolling tool as claimed in claim 4, which is characterized in that the roller in the rolling portion is circular cone rolling Son, big end are arranged towards the cutting portion, and the small end of the pressure tapered sleeve is arranged towards the cutting portion;The rolling portion and institute It states and is additionally provided with elastic part between support portion, the elastic part includes body, elastic component, elastic component support sleeve and elastic component adjustment Circle, the elastic component support sleeve are set in the mandrel, and the elastic component is arranged in the body and the elastic component support sleeve Between, one end offsets with the elastic component support sleeve, and the other end offsets with elastic component adjustment circle, and the body is described in The side for rolling retainer is equipped with accommodating chamber, and the accommodating chamber is adapted with the rolling retainer, the rolling retainer and The elastic component adjustment circle offsets, and enters or exit the accommodating chamber under elastic component effect.
9. combined boring tool rolling tool as claimed in claim 8, which is characterized in that the retainer and the elastic component branch 3rd bearing is equipped between support set, the body is arranged on the outside of the elastic component support sleeve, the body and the elastic component Fourth bearing is equipped between support sleeve;5th bearing is equipped between the elastic component adjustment circle and the rolling retainer.
10. combined boring tool rolling tool as claimed in claim 1 or 2, which is characterized in that the mandrel is far from cutting portion One end is equipped with flat formula taper shank and annular convex platform, and annular convex platform is used to connect by de- stem nut with main rod body.
CN201910588658.1A 2019-07-02 2019-07-02 Combined boring cutter rolling tool Active CN110270698B (en)

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CN110270698B CN110270698B (en) 2020-08-25

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CN107900687A (en) * 2017-12-23 2018-04-13 中北大学 A kind of deep-hole boring rolls Compound Machining instrument

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