CN203956172U - A kind of helical milling device - Google Patents
A kind of helical milling device Download PDFInfo
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- CN203956172U CN203956172U CN201420388300.7U CN201420388300U CN203956172U CN 203956172 U CN203956172 U CN 203956172U CN 201420388300 U CN201420388300 U CN 201420388300U CN 203956172 U CN203956172 U CN 203956172U
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Abstract
The utility model discloses a kind of helical milling device, it comprises self-rotating system, revolution system, feed system and offset regulating system.In self-rotating system, electric main shaft, by the collet of installing on its output shaft, drives milling cutter rotation.In revolution system, revoluting motor drives inner sleeve to revolve round the sun with respect to outer sleeve axis by small synchronous pulley, Timing Belt and large synchronous pulley.In feed system, feeding motor drives feed screw to make feed nut motion realize feeding.The motion of offset governor motion control skew slide block in offset regulating system, the gap that fixedly disappears nut, the activity gap nut that disappears is eliminated the backlass of offset regulating system, thereby the high accuracy that realizes offset regulates, the hold-fast body realization being arranged on inner sleeve is held skew slide block tightly on inner sleeve after offset adjustment.The utility model can be applicable to integrated, high-quality, the high efficiency drilling of aerospace field difficult-to-machine material.
Description
Technical field
The utility model relates to helical milling device field, can be applicable to integrated, high-quality, the high efficiency drilling of difficult-to-machine material in aerospace field.
Background technology
China is in the period of manufacturing technology fast development at present, and machining is the main foundation technique of manufacturing technology.Aero-Space, as the important part of manufacturing industry, are always the industry of the enrichment of new and high technology.In aeronautical manufacture, assembling drilling is the key link of aircraft, Large Scale Space Vehicle manufacture assembling, and drilling efficiency directly restricts the aircraft general assembly cycle, and drilling quality also will directly affect the anti-fatigue performance of connection member.Traditional drilling process is a continuous working angles, and for the poor titanium alloy of heat conduction, drilling heat can cause rapidly the wear out failure of cutter.Secondly,, because tool diameter is identical with drilling diameter, high temperature bits can cause hole scuffing from hole wall close to too.Again, the axial force of traditional drilling is very large, easily causes layering, tears, the mortality defect such as splitting, burr for carbon fibre reinforced composite material.In addition, for the assembling drilling of aviation field large amount of complex hole system, adopt traditional drilling mode to need a large amount of tool changing operations, this directly affects the production efficiency of assembling drilling.For the problems referred to above, helical milling hole fabrication techniques at present, the advantages such as cutting force is little because having, good processing accuracy, drilling efficiency height, have obtained the great attention of domestic and international aviation and Ge great institute.
In structure shown in patent CN200910068518.8 and patent CN201110088154.7, radial offset mechanism all adopts two eccentric structures.Radial offset mechanism drives the inner sleeve of inside and outside contour bias to rotate and regulate the relative outer sleeve outline of cutter axle center offset relative to the outer sleeve of inside and outside contour bias by worm and gear.In said structure due between worm and gear without gap-eliminating structure, so when the reverse turn of worm screw, due to the fit clearance of worm and gear, increased offset regulating error.
Shown in patent CN201210150627.6, in structure, its offsetting mechanism adopts the wedge structure eccentric adjustment amount being made up of outer voussoir, interior voussoir, linear electric motors; This structure drives outer voussoir to move on the center through hole wall coordinating with it along first direction by linear electric motors, and outer voussoir forces interior voussoir to move and without backlass along second direction of motion by the wedge surface coordinating with interior voussoir.After this structure eccentric adjustment amount, there is no hold-fast body holds skew slide block tightly, therefore in the helical milling device course of work, outside interior wedge block movement points to structure gravity direction in voussoir wedge groove time, interior voussoir can slide along lozenges in wedge groove, cause offset to change, increased offset regulating error, make the poor work stability of structure.The two eccentric structures that all adopt worm and gear to drive in radial offset mechanism shown in patent CN200910068518.8 and patent CN201110088154.7.Because the enclasping force of inner sleeve provides by active force between turbine and worm and turbine and worm Contact is line contact, so turbine and worm contact-making surface pressure is large, deflection is large, causes offset error large, affects the job stability of structure.
Two eccentric structures that radial offset mechanism adopts in structure shown in patent CN200910068518.8 and patent CN201110088154.7 are by changing inner sleeve relative outer sleeve relative rotation angle eccentric adjustment amount, because the anglec of rotation and the complete linear relationship of offset right and wrong make offset adjusting difficult.The mesoporous of structure shown in patent CN201210157184.3 adjusting device adopts straight line eccentric adjustment amount structure, in literary composition, side-play amount refers to offset, differential screw is installed in slide block one end, mounting spring between the space of the slide block other end and base plate, drive slide block to move change offset by turn differential screw, utilize spring backhaul to be provided and to disappear gap function for slide block; After completing, by holding screw and oat tail groove structure, slide block is held tightly roll adjustment.But this structure, in the time that offset increases, is subject to slide block to press skew equilbrium position apart from increase, causes spring restoring force to increase, and the spring restoring force that when differential screw turn, suffered slide block transmits increases, and causes structure eccentric adjustment amount difficulty.
Utility model content
The offset regulating error that exists in the structure proposing for above-mentioned patent is large, without enclasp device, radial deflection device rigidity, not good and radial deflection device can be with the technical problem of the more large more difficult adjusting of offset, and the utility model provides that a kind of degree of regulation is high, good operating stability, helical milling device easy to adjust.
The technological means that the utility model adopts is as follows:
A kind of helical milling device, is characterized in that, comprises the self-rotating system, revolution system, feed system and the offset regulating system that drive tool motion;
Self-rotating system is arranged in revolution system by skew slide block;
Revolution system is fixedly mounted in feed system;
Described self-rotating system comprises milling cutter, collet and electric main shaft, and described milling cutter is fixedly connected on by described collet on the output shaft of described electric main shaft, and described electric main shaft output shaft drives the described milling cutter of described collet clamping to rotate and realizes rotation;
Described revolution system comprises revolution driving mechanism, inner sleeve rear end cap, outer sleeve rear end cap, radial bearing, outer sleeve, inner sleeve, outer sleeve drive end bearing bracket and inner sleeve drive end bearing bracket, described outer sleeve is fixedly connected on the upper end of described feeding slide unit, and the two ends of described outer sleeve are fixedly connected with respectively described outer sleeve drive end bearing bracket and described outer sleeve rear end cap; The two ends of described inner sleeve are fixedly connected with respectively described inner sleeve drive end bearing bracket and described inner sleeve rear end cap, described inner sleeve drive end bearing bracket is flexibly connected with the inwall of described outer sleeve by radial bearing I, described inner sleeve rear end cap is flexibly connected with the inwall of described outer sleeve by radial bearing II, and described revolution driving mechanism is fixedly connected with the axle I of the center that is fixedly connected on described inner sleeve rear end cap; Described inner sleeve drive end bearing bracket, described inner sleeve rear end cap and described inner sleeve entirety are rotated around the axis of described outer sleeve by described radial bearing I and described radial bearing II;
Described revolution driving mechanism comprises revoluting motor, small synchronous pulley, Timing Belt, large synchronous pulley and conducting slip ring, described revoluting motor is fixedly connected on described feeding slide unit, the output shaft of described motor is provided with described small synchronous pulley, described small synchronous pulley is flexibly connected with described large synchronous pulley by described Timing Belt, described large synchronous pulley is fixedly connected with the axle I of the center that is fixedly connected on described inner sleeve rear end cap, in described axle I, be socketed with described conducting slip ring, described conducting slip ring is between described outer sleeve rear end cap and described large synchronous pulley, and be fixedly connected on described outer sleeve rear end cap, described revoluting motor drives described small synchronous pulley to drive described Timing Belt and described large synchronous pulley to rotate, it take the axle center of described outer sleeve as axle rotation that described large synchronous pulley drives described inner sleeve,
Described feed system comprises bearing block unit one, feed system base, bearing block unit two, feed nut, feeding slide unit, feed screw and feeding driving mechanism; Described bearing block unit one and described bearing block unit two are fixedly connected on respectively the two ends of described feed system base, described leading screw is flexibly connected with described feed system base by described bearing block unit one and described bearing block unit two, the output shaft of described feeding driving mechanism is fixedly connected with described leading screw, and the lower end of described feeding slide unit is flexibly connected with described leading screw by described feed nut;
Described feeding driving mechanism comprises feeding motor, support tube and shaft coupling, described feeding motor is fixedly connected on described bearing block unit two by support tube, the output shaft of described feeding motor is fixedly connected with described leading screw by described shaft coupling, described feeding motor drives described feed screw to rotate by described shaft coupling, described feed screw drives the described feed nut being mated moving axially, because described feeding slide unit and described feed nut are fixedly linked, described feeding slide unit can be in axially-movable together with described feed nut;
Described offset regulating system comprises described skew slide block, regulates the offset governor motion of described skew slide block radial deflection and the hold-fast body of described skew slide block; Described hold-fast body is fixedly connected in the sidewall of described inner sleeve, and described hold-fast body is held described skew slide block tightly on described inner sleeve after the radial deflection adjustment of described skew slide block; The lower end of described skew slide block is provided with slide rail, the inwall of described inner sleeve is provided with the slideway matching with described slide rail, described slideway is vertical with the axis of described inner sleeve, on the inwall of described inner sleeve, be also provided with hole I and hole II, the line of axis and the axis of described inner sleeve of the axis of described hole I and described hole II are vertical, described skew upper end of slide block is also provided with the hold groove parallel with described slideway, the hole III matching with described hole I and the hole IV matching with described hole II;
Described hold-fast body comprises holds screw rod tightly, hold bearing (ball) cover tightly, hold bearing tightly, bearing holder (housing, cover), round nut II and hold piece tightly, the described screw rod of holding tightly is connected with the sidewall of described inner sleeve with described bearing holder (housing, cover) by the described bearing of holding tightly, the inwall of described bearing holder (housing, cover) with described in hold bearing tightly outer ring be fixedly connected with, described in being connected with, the front end of described bearing holder (housing, cover) holds bearing (ball) cover tightly, described bearing holder (housing, cover) and described in hold tightly in the sidewall that bearing (ball) cover entirety is fixedly connected on described inner sleeve, the lower end of described bearing holder (housing, cover) is also provided with positive stop lug boss, described holding tightly is socketed with the described round nut II of holding bearing tightly described in axial restraint on screw rod, described round nut II matches with described positive stop lug boss the described bearing of holding tightly is held tightly on screw rod described in being axially fixed in, described lower end of holding screw rod tightly be provided with can along described hold tightly groove length direction slide described in hold piece tightly, described upper end of holding screw rod tightly is provided with described in turn and holds the hole that screw rod is used tightly,
Described offset governor motion comprises adjusting socket cap, radial deflection shaft coupling, skew bearing (ball) cover, offset axis bearing sleeve one, round nut I, skew bearing one, adjusting screw(rod), the gap that fixedly disappears nut, the activity gap nut that disappears, spring washer I, screw nut, skew bearing two, spring washer II and offset axis bearing sleeve two, described adjusting screw(rod) is through described hole I, described hole II, described hole III and described hole IV, described adjusting screw(rod) is connected with the inwall of described hole I with described offset axis bearing sleeve one by described skew bearing one, the inwall of described offset axis bearing sleeve one with described in move bearing one outer ring be fixedly connected with, the front end of described offset axis bearing sleeve one is connected with described skew bearing (ball) cover, described offset axis bearing sleeve one and described skew bearing (ball) cover entirety are fixedly connected in the I of described hole, described adjusting screw(rod) is positioned at and on a section of described hole I, is also socketed with the described round nut I that is offset bearing one described in axial restraint, and a section of extending to outside described offset axis bearing sleeve one of described adjusting screw(rod) is fixedly connected with described adjusting socket cap by described radial deflection shaft coupling, described adjusting screw(rod) is connected with the inwall of described hole III by the described gap nut that fixedly disappears, and the described gap nut that fixedly disappears is fixedly connected in the III of described hole,
Described adjusting screw(rod) is connected with the inwall of described hole II with described offset axis bearing sleeve two by described skew bearing two, the inwall of described offset axis bearing sleeve two is fixedly connected with the outer ring of described skew bearing two, described offset axis bearing sleeve two is fixedly connected in the II of described hole, and described adjusting screw(rod) is positioned at a section of described hole II and is also socketed with the described spring washer II that is offset bearing two described in axial restraint; Described adjusting screw(rod) is connected with the inwall of described hole IV by the described activity gap nut that disappears, described adjusting screw(rod) be positioned on ⅣNei one end, described hole, be also socketed with the movable gap nut that disappears described in axial restraint described spring washer I and described in screw nut, described spring washer I described activity disappear gap nut and described in screw between nut; described fixedly disappear gap nut and described activity disappear gap nut and described adjusting screw(rod) threaded engagement, described in rotation, screwing nut orders about the described activity gap nut that disappears and regulates described fixedly disappear gap nut and the described activity gap nut spacing that disappears along the micro-in-migration of described adjusting screw(rod) axis direction, when making on described fixedly disappear gap nut and described adjusting screw(rod) ridge a direction face keep being adjacent to, the described activity other direction face of ridge on gap nut and described adjusting screw(rod) that disappears keeps being adjacent to, ensure the gap nut that fixedly disappears described in described adjusting screw(rod) is no matter when forward and reverse turn, the described activity gap nut that disappears keeps being adjacent to screw thread facing corresponding on described adjusting screw(rod) all the time, eliminate the backlass of described skew slide block radial motion, when driving described adjusting screw(rod), the turn of described adjusting socket cap rotates, described skew slide block moves under described fixedly disappear gap nut and described activity disappear the driving of gap nut, the turn of described adjusting socket cap drives described adjusting screw(rod) to rotate, described adjusting screw(rod) drives described skew slide block to move radially.
Further, described in hold screw rod tightly lower end be provided with external screw thread, described in hold piece tightly and be provided with the screwed hole matching with described external screw thread, described in hold tightly hold tightly described in screw rod turn control piece along described in hold axially moving up and down of screw rod tightly.Described hold tightly piece with described in hold tightly between screw rod as being threaded, described in while holding screw rod turn tightly, described in hold piece tightly and move down described in compression and hold groove tightly along the described axial line of holding screw rod tightly.
Further, inverted trapezoidal perpendicular to being shaped as of described cross section of holding groove length direction tightly.
Further, described spring washer I is disk spring washer.
Compared with prior art, the utlity model has following beneficial effect:
1. degree of regulation is high
Adopt two eccentric structure eccentric adjustment amounts in the radial offset mechanism shown in patent CN200910068518.8 and patent CN201110088154.7, regulate the relative rotation angle of inner and outer sleeves to change cutter deflection amount by worm and gear, but due between its worm and gear without gap-eliminating structure, so there is backlass in the time of the reverse turn of worm screw, increased offset regulating error.
In the utility model, offset regulating system is by the gap nut that disappears of rotary moveable in structure installation process, regulate fixedly disappear gap nut and the activity gap nut spacing that disappears, make fixedly to disappear on gap nut and adjusting screw(rod) when ridge a direction face keeps being adjacent to, the activity other direction face of ridge on gap nut and adjusting screw(rod) that disappears keeps being adjacent to, ensure at the adjusting screw(rod) gap nut that no matter fixedly disappears when forward and reverse turn, the activity gap nut that disappears keeps being adjacent to screw thread facing corresponding on adjusting screw(rod) all the time, reduce the backlass of skew slide block radial motion, improve structure offset degree of regulation.
2. good operating stability
Offsetting mechanism shown in patent CN201210150627.6 adopts the wedge structure eccentric adjustment amount being made up of outer voussoir, interior voussoir, linear electric motors; This structure drives outer voussoir to move on the center through hole wall coordinating with it along first direction by linear electric motors, and outer voussoir forces interior voussoir to move change offset along second direction by the wedge surface coordinating with interior voussoir.After this structure eccentric adjustment amount, there is no hold-fast body skew slide block is held tightly, in the time that interior wedge block movement points in outer voussoir wedge groove to structure gravity direction, interior voussoir slides in can be along lozenges to wedge groove and causes offset change, radial deflection error is increased, arrangement works poor stability.The two eccentric structures that all adopt worm and gear to drive in radial offset mechanism shown in patent CN200910068518.8 and patent CN201110088154.7.Because the enclasping force of inner sleeve provides by active force between turbine and worm and turbine and worm Contact is line contact, so turbine and worm contact-making surface pressure is large, deflection is large, causes offset error large, has reduced the job stability of structure.
In this patent, offset regulating system is held screw rod tightly by turn and is made to hold tightly piece and move down by holding piece two inclined-planes tightly skew slide block upper groove is compressed, and makes to be offset slide block and cannot move relative to inner sleeve.Compare two eccentric structures, this structure function area is large, and the suffered pressure of skew slide block is little, and deflection is little; Compare general clasping structure as lock-screw, lock-screw active area is far smaller than this hold-fast body active area, and force localization is unfavorable for the even laminating of rubbing surface, the frictional force acting surface of this hold-fast body is larger, pressure distribution is more even, makes to be offset slide block more even with upper and lower rubbing surface laminating, and it is larger that skew slide block moves required overcome friction, structure is held tightly with better function, and job stability is better.
3. easy to adjust
The two eccentric structures that adopt in radial offset mechanism shown in patent CN200910068518.8 and patent CN201110088154.7 are by regulating inner sleeve relative outer sleeve relative rotation angle eccentric adjustment amount, because offset and the complete linear relationship of anglec of rotation right and wrong make offset adjusting difficult.The device of aperture adjustment shown in patent CN201210157184.3 adopts straight line eccentric adjustment amount structure, by regulating differential screw turn to drive slide block to move, utilize spring to provide backhaul and the gap function slide block being held tightly by holding screw and oat tail groove structure of disappearing for slide block.But this structure, in the time that offset increases, is subject to slide block to press skew equilbrium position apart from increase, causes spring restoring force to increase, and the spring restoring force that when adjustment screw turn, suffered slide block transmits increases, and causes structure eccentric adjustment amount difficulty.
In this patent, offset regulating system adopts straight line adjustment structure to regulate the offset of skew slide block, being offset by turn the skew slide block that screw drive is provided with fixedly disappear gap nut and the movable gap nut that disappears is moving radially, offset is completely linear with the skew screw rod anglec of rotation, compares two eccentric structures easy to adjust.Compare shown in patent CN201210157184.3 in aperture adjustment device that differential screw institute is stressed to increase with offset, this patent is in offset regulating system adjustment process, owing to driving, the required overcome friction of skew slide block movement is little, and fixedly disappear gap nut and the activity that the drive skew slide block movement stressed size of gap nut that disappears determines by being offset screw torque, so the skew stressed size of slide block and offset size are irrelevant, only relevant to radial direction friction in adjustment process.Because skew slide block radial direction friction in adjustment process is little, so it is little that turn is offset the required moment of torsion of screw rod, skew screw rod, fixedly disappear gap nut, activity disappear gap nut, to be offset slide block stressed little, the utility model offset regulating system is stressed little, easy to adjust.
The utility model can extensively be promoted in the field such as aspect the processing of hole for the foregoing reasons.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the structural representation of helical milling device in the utility model embodiment.
Fig. 2 is A-A cutaway view in Fig. 1.
Fig. 3 is B-B cutaway view in Fig. 1.
Fig. 4 is the local enlarged diagram of I portion in Fig. 1.
Fig. 5 is the structural representation of offset governor motion in the utility model embodiment.
Wherein, self-rotating system 1:101 milling cutter, 102 collets, 103 electric main shafts;
Revolution system 2:201 revoluting motor, 202 small synchronous pulleys, 203 Timing Belts, 204 large synchronous pulleys, 205 inner sleeve rear end caps, 206 conducting slip rings, 207 outer sleeve rear end caps, 208 radial bearing II, 209 outer sleeves, 210 inner sleeves, 211 outer sleeve drive end bearing brackets, 212 inner sleeve drive end bearing brackets, 213 radial bearing I, 214 axle I;
Feed system 3:301 bearing block unit one, 302 feed system base, 303 bearing block unit two, 304 support tubes, 305 feeding motors, 306 feed nuts, 307 feeding slide units, 308 feed screws, 309 shaft couplings;
Offset regulating system 4:401 is offset slide block, 402 hold screw rod tightly, 403 hold bearing (ball) cover tightly, 404 hold bearing tightly, 405 bearing holder (housing, cover)s, 406 round nut II, 407 hold piece tightly, 408 regulate socket cap, 409 radial deflection shaft couplings, 410 skew bearing (ball) covers, 411 offset axis bearing sleeves one, 412 round nut I, 413 skew bearings one, 414 adjusting screw(rod)s, the 415 gap nuts that fixedly disappear, the 416 activities gap nut that disappears, 417 spring washer I, 418 screw nut, 419 skew bearings two, 420 spring washer II, 421 offset axis bearing sleeves two, 422 hole I, 423 hole II, 424 hole III, 425 hole IV.
Detailed description of the invention
As Figure 1-Figure 5, a kind of helical milling device, comprises the self-rotating system 1, revolution system 2, feed system 3 and the offset regulating system 4 that drive tool motion;
Described self-rotating system 1 is flexibly connected with described inner sleeve 210 by described skew slide block 401, described self-rotating system 1 comprises milling cutter 101, collet 102 and electric main shaft 103, and described milling cutter 101 is fixedly connected on the output shaft of described electric main shaft 103 by described collet 102.
Described revolution system 2 comprises revoluting motor 201, small synchronous pulley 202, Timing Belt 203, large synchronous pulley 204, inner sleeve rear end cap 205, conducting slip ring 206, outer sleeve rear end cap 207, radial bearing 208, outer sleeve 209, inner sleeve 210, outer sleeve drive end bearing bracket 211 and inner sleeve drive end bearing bracket 212, described outer sleeve 209 is fixedly connected on the upper end of described feeding slide unit 307, and the two ends of described outer sleeve 209 are fixedly connected with respectively described outer sleeve drive end bearing bracket 211 and described outer sleeve rear end cap 207, the two ends of described inner sleeve 210 are fixedly connected with respectively described inner sleeve drive end bearing bracket 212 and described inner sleeve rear end cap 205, described inner sleeve drive end bearing bracket 212 is flexibly connected with the inwall of described outer sleeve 209 by radial bearing I 213, described inner sleeve rear end cap 205 is flexibly connected with the inwall of described outer sleeve 209 by radial bearing II 208, described revoluting motor 201 is fixedly connected on described feeding slide unit 307, the output shaft of described motor 201 is provided with described small synchronous pulley 202, described small synchronous pulley 202 is flexibly connected with described large synchronous pulley 204 by described Timing Belt 203, described large synchronous pulley 204 is fixedly connected with the axle I 214 of the center that is fixedly connected on described inner sleeve rear end cap 205, in described axle I 214, be socketed with described conducting slip ring 206, described conducting slip ring 206 is between described outer sleeve rear end cap 207 and described large synchronous pulley 204, and be fixedly connected on described outer sleeve rear end cap 207, described inner sleeve drive end bearing bracket 212, described inner sleeve rear end cap 205 and described inner sleeve 210 entirety are rotated along the axis of described outer sleeve 209 by described radial bearing I 213 and described radial bearing II 208,
Described feed system 3 comprises bearing block unit 1, feed system base 302, bearing block unit 2 303, support tube 304, feeding motor 305, feed nut 306, feeding slide unit 307, feed screw 308 and shaft coupling 309, described bearing block unit 1 and described bearing block unit 2 303 are fixedly connected on respectively the two ends of described feed system base 302, described leading screw 308 is flexibly connected with described feed system base 302 by described bearing block unit 1 and described bearing block unit 2 303, described feeding motor 305 is fixedly connected on described bearing block unit 2 303 by support tube 304, the output shaft of described feeding motor 305 is fixedly connected with described leading screw 308 by described shaft coupling 309, the lower end of described feeding slide unit 307 is flexibly connected with described leading screw 308 by described feed nut 306,
Described offset regulating system 4 comprises skew slide block 401, regulates the offset governor motion of described skew slide block 401 radial deflections and the hold-fast body of described skew slide block 401, described hold-fast body is held described skew slide block 401 tightly on described inner sleeve 210 after the radial deflection adjustment of described skew slide block 401, the lower end of described skew slide block 401 is provided with slide rail, the inwall of described inner sleeve 210 is provided with the slideway matching with described slide rail, described slideway is vertical with the axis of described inner sleeve 210, on the inwall of described inner sleeve 210, be also provided with hole I 422 and hole II 423, the axis of described hole I 422 is vertical with the axis of described inner sleeve 210 with the line of the axis of described hole II 423, described skew slide block 401 upper ends are also provided with the hold groove parallel with described slideway, perpendicular to inverted trapezoidal and the hole III 424 that described hole I 422 matches and the hole IV 425 matching with described hole II 423 of being shaped as in described cross section of holding groove length direction tightly, described hold-fast body comprises holds screw rod 402 tightly, hold bearing (ball) cover 403 tightly, hold bearing 404 tightly, bearing holder (housing, cover) 405, round nut II 406 and hold piece 407 tightly, the described screw rod 402 of holding tightly is connected with the sidewall of described inner sleeve 210 with described bearing holder (housing, cover) 405 by the described bearing 404 of holding tightly, the inwall of described bearing holder (housing, cover) 405 with described in hold bearing 404 tightly outer ring be fixedly connected with, described in being connected with, holds the front end of described bearing holder (housing, cover) 405 bearing (ball) cover 403 tightly, described bearing holder (housing, cover) 405 and described in hold bearing (ball) cover 403 entirety tightly and be fixedly connected in the sidewall of described inner sleeve 210, the lower end of described bearing holder (housing, cover) 405 is also provided with positive stop lug boss, described holding tightly is socketed with the described round nut II 406 of holding bearing 404 tightly described in axial restraint on screw rod 402, described round nut II 406 matches with described positive stop lug boss the described bearing 404 of holding tightly is held tightly on screw rod 402 described in being axially fixed in, described lower end of holding screw rod 402 tightly be provided with can along described hold tightly groove length direction slide described in hold piece 407 tightly, described upper end of holding screw rod 402 tightly is provided with the hole of holding screw rod 402 use described in turn tightly, described lower end of holding screw rod 402 tightly is provided with external screw thread, the described piece 407 of holding tightly is provided with the screwed hole matching with described external screw thread.Described hold tightly piece 407 with described in hold tightly between screw rod 402 as being threaded, described in while holding screw rod 402 turn tightly, described in hold piece 407 tightly and move down described in compression and hold groove tightly along the described axial line of holding screw rod 402 tightly, described offset governor motion comprises adjusting socket cap 408, radial deflection shaft coupling 409, skew bearing (ball) cover 410, offset axis bearing sleeve 1, round nut I 412, skew bearing 1, adjusting screw(rod) 414, the gap that fixedly disappears nut 415, the activity gap nut 416 that disappears, spring washer I 417, screw nut 418, skew bearing 2 419, spring washer II 420 and offset axis bearing sleeve 2 421, described spring washer I 417 is disk spring washer, described adjusting screw(rod) 414 is through described hole I 422, described hole II 423, described hole III 424 and described hole IV 425, described adjusting screw(rod) 414 is connected with the inwall of described hole I 422 with described offset axis bearing sleeve 1 by described skew bearing 1, the inwall of described offset axis bearing sleeve 1 with described in move bearing 1 outer ring be fixedly connected with, the front end of described offset axis bearing sleeve 1 is connected with described skew bearing (ball) cover 410, described offset axis bearing sleeve 1 and described skew bearing (ball) cover 410 entirety are fixedly connected in described hole I 422, described adjusting screw(rod) 414 is positioned at and on a section of described hole I 422, is also socketed with the described round nut I 412 that is offset bearing 1 described in axial restraint, one section of extending to outside described offset axis bearing sleeve 1 of described adjusting screw(rod) 414 is fixedly connected with described adjusting socket cap 408 by described radial deflection shaft coupling 409, described adjusting screw(rod) 414 is connected with the inwall of described hole III 424 by the described gap nut 415 that fixedly disappears, and the described gap nut 415 that fixedly disappears is fixedly connected in described hole III 424, described adjusting screw(rod) 414 is connected with the inwall of described hole II 423 with described offset axis bearing sleeve 2 421 by described skew bearing 2 419, the inwall of described offset axis bearing sleeve 2 421 is fixedly connected with the outer ring of described skew bearing 2 419, described offset axis bearing sleeve 2 421 is fixedly connected in described hole II 423, and described adjusting screw(rod) 414 is positioned at a section of described hole II 423 and is also socketed with the described spring washer II 420 that is offset bearing 2 419 described in axial restraint, described adjusting screw(rod) 414 is connected with the inwall of described hole IV 425 by the described activity gap nut 416 that disappears, described adjusting screw(rod) 414 be positioned on one end of described hole IV 425, be also socketed with the movable gap nut 416 that disappears described in axial restraint described spring washer I 417 and described in screw nut 418, described spring washer I 417 described activity disappear gap nut 416 and described in screw between nut 418, the gap that fixedly disappears nut 415 and activity disappear gap nut 416 and adjusting screw(rod) 414 threaded engagement, the distance elimination screw thread counter motion gap that disappears gap nut 416 and fixedly disappear between gap nut 415 by screwing nut 418 adjusting activities, when regulating socket cap 408 turns to drive adjusting screw(rod) 414 to rotate, skew slide block 401 moves under the driving of fixedly disappear gap nut 415 and the movable gap nut 416 that disappears.
Operation principle of the present utility model is as follows:
Electric main shaft 103 output shafts described in described self-rotating system 1 drive described milling cutter 101 rotations that described collet 102 clamps to realize rotation.
Revoluting motor 201 described in described revolution system 2 drives described small synchronous pulley 202 to drive described Timing Belt 203 and described large synchronous pulley 204 to rotate, described large synchronous pulley 204 is fixed in the described axle I 214 of center of described inner sleeve rear end cap 205, described inner sleeve drive end bearing bracket 212 is flexibly connected with the inwall of described outer sleeve 209 by radial bearing I 213, described inner sleeve rear end cap 205 is flexibly connected with the inwall of described outer sleeve 209 by radial bearing II 208, so described large synchronous pulley 204 rotates and drives described inner sleeve to rotate, and outer sleeve is fixed simultaneously.
Feeding motor 305 described in described feed system 3 drives described feed screw 308 to rotate by described shaft coupling 309, described feed screw 308 drives the described feed nut 306 being mated moving axially, because described feeding slide unit 307 is fixedly linked with described feed nut 306, described feeding slide unit 307 can be in axially-movable together with described feed nut 306.
Described in described offset regulating system 4, regulate socket cap 408 turns to drive described adjusting screw(rod) 414 to rotate, thereby described fixedly disappear gap nut 415, the described activity of driving on described adjusting screw(rod) 414 disappears, gap nut 416 is moving radially.Because the described gap nut 415 that fixedly disappears, the described activity relatively described skew slide block of gap nut 416 401 that disappears is fixing, described skew slide block 401 can radially move with described fixedly disappear gap nut 415 and the described activity gap nut 416 that disappears, offset distance e determines (d is described milling cutter 101 diameters, and D is bore dia to be processed) by formula e=(D-d)/2; Described activity disappear gap nut 416 both sides be separately installed with described disk spring washer and described in screw nut 418, thereby regulate the described activity relatively described distance that fixedly disappears gap nut 415 of gap nut 416 that disappears to reach the double nut control accuracy of gap effect with guarantee radial deflection distance that disappear.Described hold tightly hold tightly described in screw rod 402 turn controls piece 407 along described in hold axially moving up and down of screw rod 402 tightly, described in hold piece 407 tightly and move down described skew slide block 401 is held tightly, guarantee that described skew slide block 401 is fixing diametrically.
The above; it is only preferably detailed description of the invention of the utility model; but protection domain of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; be equal to replacement or changed according to the technical solution of the utility model and utility model design thereof, within all should being encompassed in protection domain of the present utility model.
Claims (4)
1. a helical milling device, is characterized in that, comprises the self-rotating system (1), revolution system (2), feed system (3) and the offset regulating system (4) that drive tool motion;
Self-rotating system (1) is arranged in revolution system (2) by skew slide block (401);
Revolution system (2) is fixedly mounted in feed system (3);
Described offset regulating system (4) comprises described skew slide block (401), regulates the offset governor motion of described skew slide block (401) radial deflection and the hold-fast body of described skew slide block (401); Described hold-fast body is fixedly connected in the sidewall of described inner sleeve (210);
The lower end of described skew slide block (401) is provided with slide rail, the inwall of described inner sleeve (210) is provided with the slideway matching with described slide rail, described slideway is vertical with the axis of described inner sleeve (210), on the inwall of described inner sleeve (210), be also provided with hole I (422) and hole II (423), the line of the axis of described hole I (422) and the axis of described hole II (423) is vertical with the axis of described inner sleeve (210);
Described skew slide block (401) upper end is also provided with the hold groove parallel with described slideway, the hole III (424) matching with described hole I (422) and the hole IV (425) matching with described hole II (423);
Described hold-fast body comprises holds screw rod (402) tightly, hold bearing (ball) cover (403) tightly, hold bearing (404) tightly, bearing holder (housing, cover) (405), round nut II (406) and hold piece (407) tightly, the described screw rod (402) of holding tightly is connected with the sidewall of described inner sleeve (210) with described bearing holder (housing, cover) (405) by the described bearing (404) of holding tightly, the inwall of described bearing holder (housing, cover) (405) with described in hold bearing (404) tightly outer ring be fixedly connected with, described in being connected with, holds the front end of described bearing holder (housing, cover) (405) bearing (ball) cover (403) tightly, described bearing holder (housing, cover) (405) and described in hold bearing (ball) cover (403) entirety tightly and be fixedly connected in the sidewall of described inner sleeve (210), the lower end of described bearing holder (housing, cover) (405) is also provided with positive stop lug boss, described holding tightly is socketed with the described round nut II (406) of holding bearing (404) tightly described in axial restraint on screw rod (402), described lower end of holding screw rod (402) tightly be provided with can along described hold tightly groove length direction slide described in hold piece (407) tightly, described upper end of holding screw rod (402) tightly is provided with the hole of holding screw rod (402) use described in turn tightly,
Described offset governor motion comprises adjusting socket cap (408), radial deflection shaft coupling (409), skew bearing (ball) cover (410), offset axis bearing sleeve one (411), round nut I (412), skew bearing one (413), adjusting screw(rod) (414), the gap that fixedly disappears nut (415), the activity gap nut (416) that disappears, spring washer I (417), screw nut (418), skew bearing two (419), spring washer II (420) and offset axis bearing sleeve two (421), described adjusting screw(rod) (414) is through described hole I (422), described hole II (423), described hole III (424) and described hole IV (425), described adjusting screw(rod) (414) is connected with the inwall of described hole I (422) with described offset axis bearing sleeve one (411) by described skew bearing one (413), the inwall of described offset axis bearing sleeve one (411) with described in move bearing one (413) outer ring be fixedly connected with, the front end of described offset axis bearing sleeve one (411) is connected with described skew bearing (ball) cover (410), described offset axis bearing sleeve one (411) and described skew bearing (ball) cover (410) entirety are fixedly connected in described hole I (422), described adjusting screw(rod) (414) is positioned at and on a section of described hole I (422), is also socketed with the described round nut I (412) that is offset bearing one (413) described in axial restraint, described adjusting screw(rod) (414) extends to outer one section of described offset axis bearing sleeve one (411) and is fixedly connected with described adjusting socket cap (408) by described radial deflection shaft coupling (409), described adjusting screw(rod) (414) is connected with the inwall of described hole III (424) by the described gap nut (415) that fixedly disappears, and the described gap nut (415) that fixedly disappears is fixedly connected in described hole III (424),
Described adjusting screw(rod) (414) is connected with the inwall of described hole II (423) with described offset axis bearing sleeve two (421) by described skew bearing two (419), the inwall of described offset axis bearing sleeve two (421) is fixedly connected with the outer ring of described skew bearing two (419), described offset axis bearing sleeve two (421) is fixedly connected in described hole II (423), described adjusting screw(rod) (414) is positioned at a section of described hole II (423) and is also socketed with the described spring washer II (420) that is offset bearing two (419) described in axial restraint, described adjusting screw(rod) (414) is connected with the inwall of described hole IV (425) by the described activity gap nut (416) that disappears, described adjusting screw(rod) (414) be positioned on one end of described hole IV (425), be also socketed with activity described in axial restraint disappear gap nut (416) described spring washer I (417) and described in screw nut (418), described spring washer I (417) be positioned at described activity disappear gap nut (416) and described in screw between nut (418), described adjusting socket cap (408) turn drives described adjusting screw(rod) (414) to rotate, described adjusting screw(rod) (414) drives described skew slide block (401) to move radially.
2. a kind of helical milling device according to claim 1, it is characterized in that: described in hold screw rod (402) tightly lower end be provided with external screw thread, the described piece (407) of holding tightly is provided with the screwed hole matching with described external screw thread, described in hold tightly hold tightly described in screw rod (402) turn control piece (407) along described in hold axially moving up and down of screw rod (402) tightly.
3. a kind of helical milling device according to claim 1, is characterized in that: inverted trapezoidal perpendicular to being shaped as of described cross section of holding groove length direction tightly.
4. a kind of helical milling device according to claim 1, is characterized in that: described spring washer I (417) is disk spring washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420388300.7U CN203956172U (en) | 2014-07-14 | 2014-07-14 | A kind of helical milling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420388300.7U CN203956172U (en) | 2014-07-14 | 2014-07-14 | A kind of helical milling device |
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| Publication Number | Publication Date |
|---|---|
| CN203956172U true CN203956172U (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420388300.7U Withdrawn - After Issue CN203956172U (en) | 2014-07-14 | 2014-07-14 | A kind of helical milling device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104117719A (en) * | 2014-07-14 | 2014-10-29 | 大连交通大学 | Spiral hole milling device |
| CN107322035A (en) * | 2016-04-28 | 2017-11-07 | 南京工程学院 | A kind of terminal drilling actuator assembled for airframe component stack |
| CN111482639A (en) * | 2020-04-20 | 2020-08-04 | 大连理工大学 | Transmission mechanism of spiral hole milling device |
-
2014
- 2014-07-14 CN CN201420388300.7U patent/CN203956172U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104117719A (en) * | 2014-07-14 | 2014-10-29 | 大连交通大学 | Spiral hole milling device |
| CN107322035A (en) * | 2016-04-28 | 2017-11-07 | 南京工程学院 | A kind of terminal drilling actuator assembled for airframe component stack |
| CN107322035B (en) * | 2016-04-28 | 2019-12-17 | 南京工程学院 | terminal hole making actuator for laminated assembly of airplane body components |
| CN111482639A (en) * | 2020-04-20 | 2020-08-04 | 大连理工大学 | Transmission mechanism of spiral hole milling device |
| CN111482639B (en) * | 2020-04-20 | 2021-09-24 | 大连理工大学 | Transmission mechanism of spiral hole milling device |
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