CN105598728A - Boring tool mounting method beneficial to gap elimination - Google Patents
Boring tool mounting method beneficial to gap elimination Download PDFInfo
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- CN105598728A CN105598728A CN201610197741.2A CN201610197741A CN105598728A CN 105598728 A CN105598728 A CN 105598728A CN 201610197741 A CN201610197741 A CN 201610197741A CN 105598728 A CN105598728 A CN 105598728A
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- cutter
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- driving rack
- boring
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
- B23Q3/157—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools
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- Drilling And Boring (AREA)
Abstract
The invention discloses a boring tool mounting method beneficial to gap elimination. A tool of a boring tool device is mounted in a tool mounting groove along the radial direction of a tool handle; and a mounting handle part of the tool is provided with transmission racks which are engaged with a transmission input gear to realize radial feeding and transmission of the tool. The boring tool mounting method is characterized in that the two transmission racks are arranged in parallel and are staggered from each other; a inclined plane matching structure is arranged at one parallel connection side between the two transmission racks; corresponding inclined iron is arranged between axial front and back parts of the tool and the tool mounting groove to form a second inclined plane matching structure; and in a mounting process, the inserting of the inclined ion pushes and drives the two inclined plane matching structures to be linked and matched, and is converted into staggered movement of the two transmission racks until the two transmission racks are tightly engaged with the transmission input gear at the same time, so that the inclined iron is fixed, namely the assembling is finished. The boring tool mounting method beneficial to the gap elimination, disclosed by the invention, has the advantages of smoothness and rapidness in assembling and operation, capability of improving the assembling precision, capability of eliminating a gap so as to improve the machining precision and the like.
Description
Technical field
The invention belongs to the boring manufacture field of complicated shape of hole wall, be specifically related to a kind of boring cutter installation method of eliminating gap that is beneficial to.
Background technology
Boring is a kind of internal diameter Cutting Process with cutter expanded hole or other circular contour, and its range of application is generally from half roughing to fine finishining, and cutter for same is generally boring cutter or boring bar. Bore hole is to forging, and casts out or the further processing of drilling bore hole, belongs to the one of boring mode. Bore hole can expand aperture, improves precision, reduces surface roughness, can also correct preferably the deflection of original axially bored line.
Common boring cutter structure, generally comprises handle of a knife and the cutter that is arranged on handle of a knife front end, and handle of a knife rear end is arranged on lathe, when use, provides power to carry out boring processing by lathe. But be not suitable for realizing by lathe the situation of processing for some, for example, mountedly carry out technological transformation on compared with large equipment and need the situations such as reaming boring processing at some, be difficult to adopt existing process equipment to realize processing.
In addition, existing boring cutter, boring processing characteristics is limited, be greater than 6 times of above deep hole boring processing of diameter for the degree of depth, and the structure example of some more complicated is as the part expansion of spiral disconnected separate slot, straight trough, skewed slot, arc groove, screw thread, helicoid, arc surface, endoporus etc. adds man-hour, is also difficult to ensure precision and working (machining) efficiency.
The problem that is difficult to processed complex profile and is difficult to realize independent processing in order to solve above-mentioned existing boring cutter, applicant considers to have designed a kind of boring processing three-shaft linkage mechanical arm, comprise overall cylindrical handle of a knife and cutter, Cutting tool installation manner is in the segment of cutting of handle of a knife front end, its feature is, on described handle of a knife, segment of cutting rear end is formed with the radial feed control section for controlling cutter radial feeding backward successively, for the control section and for controlling the axial stretching control section of Tool in Cutting section axial stretching of rotating in a circumferential direction of controlling that Tool in Cutting section rotates in a circumferential direction, on handle of a knife, be also provided with for realizing the cutter stable supporting device in processed hole inner support. like this, this mechanical arm can lean on cutter stable supporting device to be supported on inside, processed hole, then in process, can produce three-shaft linkage, when rotating boring by the control section control that rotates in a circumferential direction, can control radially feeding or stretching motion of cutter, and then when having realized boring and independently process, can complete the boring processing of labyrinth and deep-hole structures. there is the boring range of work large, the feature that applicability is wide. simultaneously, wherein said segment of cutting comprises a segment of cutting cylindrical shell, segment of cutting cylindrical shell forward position is provided with Cutting tool installation manner groove and for boring cutter cutter is installed, boring cutter cutter considers to arrange driving rack in the installing handle part of cutter for realizing cutter radial feeding transmission with transmission input gear engagement, simple in structure and be beneficial to gearratio and accurately control.
But wherein, rack and pinion transmission, if its accuracy of mesh is too high, can cause assembly difficulty larger, if reduce assembly difficulty, can cause again the accuracy of mesh too low and then have back lash, cause transmission quality of fit poor, affect machining accuracy; In the time realizing the cooperation of cutter self and Cutting tool installation manner groove, also can there is assembling smooth degree and the conflicting same problem of assembly precision simultaneously.
Summary of the invention
For above-mentioned the deficiencies in the prior art, technical problem to be solved by this invention is: how to provide a kind of assembly manipulation smooth and easy quick, can improve assembly precision, eliminate gap to improve the boring cutter installation method of eliminating gap that is beneficial to of machining accuracy simultaneously.
In order to solve the problems of the technologies described above, the present invention has adopted following technical scheme:
A kind of boring cutter installation method of eliminating gap that is beneficial to, the cutter of boring tool device is radially arranged in Cutting tool installation manner groove along handle of a knife, in the installing handle part of cutter, be provided with driving rack for engagement realizes cutter radial feeding transmission with transmission input gear, it is characterized in that, driving rack is designed to side by side and two of dislocation, and the side of two joining side by side between driving rack arranges inclined-plane, a place fit structure, between cutter and the axial front and back of Cutting tool installation manner groove, position arranges corresponding wedge and forms the second inclined-plane, place fit structure again, the dislocation that promotes to drive the two oblique fit structures in place to be linked by the insertion of wedge when installation and be converted into two driving racks is moved, until two driving racks simultaneously and the engagement of transmission input gear tight, now complete that wedge is fixing completes assembling.
Like this, when assembling first by after the engagement of two driving racks and transmission input gear, insert wedge, by the interlock of two inclined-plane, place fit structures, driving rack dislocation is also mobile and the engagement of transmission input gear is tight to drive two, extend radially out or retract by a driving rack forced belt cutter separately when the rotating of transmission input gear like this, therefore eliminated cutter shaft to assemblage gap when having eliminated gear drive gap. Install therefore convenient, when improving the smooth and easy degree of assembling, ensured assembling quality of fit, improved the reliability of following process precision.
As optimization, this method realizes in the boring tool device of following structure, boring tool device front end is segment of cutting, described segment of cutting comprises a segment of cutting cylindrical shell, segment of cutting cylindrical shell forward position is provided with Cutting tool installation manner groove and for mounting cutter, cutter comprises and is used to form the tool bit part of cutting edge and installs and the installing handle part of cutter radial feeding transmission for realizing, and the cutting-edge of tool bit part exposes outside Cutting tool installation manner groove; On the medial surface of installing handle part, be provided with driving rack for realizing cutter radial feeding transmission;
Described driving rack comprises the first driving rack and the second driving rack, and the first driving rack and the second driving rack shift to install side by side and engage simultaneously and for the cutter radial feeding travelling gear of realizing cutter radial feeding transmission; Cutting tool installation manner groove front side inwall be obliquely installed and front side inwall in this end consistent with cutter radial direction of feed tilt toward the direction near cutter, between this Cutting tool installation manner groove front side inwall and cutter front side outer wall, be equipped with a wedge, it is inclined-plane that wedge and Cutting tool installation manner groove front side inwall are affixed a side, and it is face consistent with tool feeding direction that wedge is affixed a side with cutter;
The first driving rack and the second driving rack are realized interlocking by the corresponding concave-convex fit structure arranging of the side of joining side by side and are coordinated, and have an oblique face that is slidably matched that favours the side that joins in described concave-convex fit structure.
Like this, in the time of assembling, first the first driving rack and the second driving rack are arranged side by side, and the concave-convex fit structure that makes the two side of joining is first affixed to have inserted along the oblique face of being slidably matched and is partially submerged into cooperation, cutter radial feeding travelling gear is in place, choose again the wedge piece that length is greater than wedge installing space length and profile coupling, less one end of wedge piece is inserted from larger one end of wedge installing space, when wedge piece inserts, two driving racks of extruding that are slidably matched of the tilt internal wall of dependence and Cutting tool installation manner groove front side close up mutually, two driving racks mutually close up and in process, rely on the cooperation of the oblique face that is slidably matched in concave-convex fit structure between the two to drive two driving racks mobile along self transmission direction dislocation, until the both sides of a teeth groove of cutter radial feeding travelling gear are affixed and push against by gear teeth of two driving racks simultaneously, now wedge piece cannot be gone insertion again, and formation wedge is blocked to along wedge installing space porch in wedge piece outer end, completes assembling after keeping wedge position fixing. when directly relying on the insertion of wedge to coordinate just to have eliminated the fit clearance that gear drive causes, such assembling process also eliminates together the end play of Cutting tool installation manner, and greatly improved efficiency of assembling, ensure assembly reliability.
As optimization, tool bit part adopts Hardmetal materials to make, and installing handle part adopts No. 45 steels to obtain. Can meet like this two parts functional requirement separately, lower cost.
Further, the larger one end of wedge is fixed in spacing the fixing of stop screw near the segment of cutting barrel outer surface of Cutting tool installation manner groove front side inwall; Simple in structure like this and facilitate the spacing fixing of wedge.
Again further, can be affixed a side along perpendicular to cutter radial direction of feed, multiple roller slots being set at wedge and cutter, described multiple roller slot is evenly intervally arranged along cutter radial direction of feed, is provided with that hollow roller and hollow roller outer surface are exposed to roller slot and for fitting with cutter leading flank in described roller slot. The sliding friction in assembling process and follow-up cutter radial feeding process is converted into rolling friction by hollow like this roller, improves the smoothness that tool assembly and feeding are adjusted, and relies on the elasticity of hollow roller simultaneously, can eliminate better gap and play damping effect.
Hollow roller adopts the spring steel material of 60Si2Mn further, improves damping effect to produce better elasticity.
In sum, it is smooth and easy quick that the present invention has assembly manipulation, can improve assembly precision simultaneously, eliminates gap to improve the advantages such as machining accuracy.
Brief description of the drawings
Fig. 1 is a kind of overall structure schematic diagram that has adopted the boring processing three-shaft linkage mechanical arm that the inventive method installs and obtain.
Fig. 2 is the A-A cutaway view of tool position in Fig. 1.
Fig. 3 is the partial schematic diagram that in Fig. 1, cutter position can show wedge and driving rack planar structure.
Fig. 4 is that the C-C of rotary support bearing arrangement position in Fig. 1 analyses and observe the schematic diagram that direction shows separately rotary support bearing arrangement.
Fig. 5 is the structural representation as the outer support mechanism of Wedge-type of another embodiment.
Fig. 6 is the local enlarged diagram that can show segment of cutting and radial feed control section structure in Fig. 1.
Fig. 7 be can display section axial stretching control section structure in Fig. 1 local enlarged diagram.
Detailed description of the invention
Below in conjunction with a kind of optimum embodiment that has adopted the boring processing three-shaft linkage mechanical arm that installation method of the present invention obtains and accompanying drawing thereof, the present invention is described in further detail.
As shown in Fig. 1-7, a kind of boring processing three-shaft linkage mechanical arm, comprise overall cylindrical handle of a knife and cutter, Cutting tool installation manner is in the segment of cutting of handle of a knife front end, wherein, on described handle of a knife, segment of cutting rear end is formed with radial feed control section for controlling cutter radial feeding, the control section and for controlling the axial stretching control section of Tool in Cutting section axial stretching of rotating in a circumferential direction for controlling that Tool in Cutting section rotates in a circumferential direction backward successively, is also provided with for realizing the cutter stable supporting device in processed hole inner support on handle of a knife.
Like this, above-mentioned mechanical arm can lean on cutter stable supporting device to be supported on inside, processed hole, then in process, can produce three-shaft linkage, when rotating boring by the control section control that rotates in a circumferential direction, can control radially feeding or stretching motion of cutter, and then when having realized boring and independently process, can complete the boring processing of labyrinth and deep-hole structures. There is the boring range of work large, the feature that applicability is wide.
Wherein, described segment of cutting comprises a segment of cutting cylindrical shell 1, segment of cutting cylindrical shell 1 forward position is provided with Cutting tool installation manner groove and for mounting cutter, cutter comprises and is used to form the tool bit part 2 of cutting edge and installs and the installing handle part 3 of cutter radial feeding transmission for realizing, the cutting-edge of tool bit part 2 exposes outside Cutting tool installation manner groove, tool bit part 3 and installing handle part 3 split-type design and employing bolt are connected to one, and are provided with driving rack for realizing cutter radial feeding transmission on the medial surface of installing handle part 3.
Like this, cutter adopts cutter head and installing handle two-part structure to realize, form cutting edge by tool bit part, like this, can and different requirements be installed for cutting and adopt separately different materials, reduce costs to improve when cutting edge is processed intensity, specifically, tool bit part adopts Hardmetal materials to make, and installing handle part adopts No. 45 steels to obtain. Cutter is divided into two parts simultaneously, facilitates in installing handle part, drive mechanism to be set and to realize cutter radial feeding transmission. This drive mechanism adopts driving rack, can facilitate and transmission input gear engages and realizes tool feeding feeding transmission, simple in structure and be beneficial to gearratio and accurately control.
Wherein, described driving rack comprises the first driving rack 4 and the second driving rack 5, the first driving racks 4 and the second driving rack 5 shifts to install side by side and simultaneously and engage for the cutter radial feeding travelling gear 6 of realizing cutter radial feeding transmission.
Like this, two driving racks whiles and the engagement of cutter radial feeding travelling gear are set, can lean on shifting to install of two driving racks, two the adjacent gear teeth that make to misplace in two driving rack fit to respectively the both sides, front and back of a teeth groove of cutter radial feeding travelling gear; So just eliminate the back lash that adopts meshed transmission gear easily to exist, in the driving error causing in less back lash, greatly reduced the requirement to the gear accuracy of manufacture.
Wherein, Cutting tool installation manner groove front side inwall be obliquely installed and front side inwall in this end consistent with cutter radial direction of feed tilt toward the direction near cutter, between this Cutting tool installation manner groove front side inwall and cutter front side outer wall, be equipped with a wedge 7, it is inclined-plane that wedge 7 and Cutting tool installation manner groove front side inwall are affixed a side, and it is face consistent with tool feeding direction that wedge 7 is affixed a side with cutter; Can eliminate better like this end play of Cutting tool installation manner generation and facilitate Cutting tool installation manner. Further, the larger one end of wedge 7 is fixed in spacing the fixing of stop screw 8 near the segment of cutting barrel outer surface of Cutting tool installation manner groove front side inwall; Simple in structure like this and facilitate the spacing fixing of wedge. Again further, the first driving rack 4 and the second driving rack 5 are realized interlocking by the corresponding concave-convex fit structure arranging 9 of the side of joining side by side and are coordinated, and have an oblique face that is slidably matched that favours the side that joins in described concave-convex fit structure 9.
Like this, in the time that boring cutter assembles, first the first driving rack and the second driving rack are arranged side by side, and the concave-convex fit structure that makes the two side of joining is first affixed to have inserted along the oblique face of being slidably matched and is partially submerged into cooperation, cutter radial feeding travelling gear is in place, choose again the wedge piece that length is greater than wedge installing space length and profile coupling, less one end of wedge piece is inserted from larger one end of wedge installing space, when wedge piece inserts, two driving racks of extruding that are slidably matched of the tilt internal wall of dependence and Cutting tool installation manner groove front side close up mutually, two driving racks mutually close up and in process, rely on the cooperation of the oblique face that is slidably matched in concave-convex fit structure between the two to drive two driving racks mobile along self transmission direction dislocation, until the both sides of a teeth groove of cutter radial feeding travelling gear are affixed and push against by gear teeth of two driving racks simultaneously, now wedge piece cannot be gone insertion again, and formation wedge is blocked to along wedge installing space porch in wedge piece outer end, completes assembling after keeping wedge position fixing. when directly relying on the insertion of wedge to coordinate just to have eliminated the fit clearance that gear drive causes, such assembling process also eliminates together the end play of Cutting tool installation manner, and greatly improved efficiency of assembling, ensure assembly reliability.
Again further, can be affixed a side along perpendicular to cutter radial direction of feed, multiple roller slots being set at wedge 7 and cutter, described multiple roller slot is evenly intervally arranged along cutter radial direction of feed, is provided with that hollow roller 10 and hollow roller 10 outer surfaces are exposed to roller slot and for fitting with cutter leading flank in described roller slot. The sliding friction in assembling process and follow-up cutter radial feeding process is converted into rolling friction by hollow like this roller, improve the smoothness that tool assembly and feeding are adjusted, rely on the elasticity of hollow roller simultaneously, can eliminate better gap and play damping effect, hollow roller adopts the spring steel material of 60Si2Mn further, improves damping effect to produce better elasticity.
Wherein, described radial feed control section, comprise a radial feed control section cylindrical shell 11 that is coaxially arranged at mechanical arm front portion, radial feed control section cylindrical shell 11 front ends are fixedly connected with segment of cutting cylindrical shell, radial feed control section inner barrel is provided with radial feed control motor 12, described radial feed control motor 12 output shafts arrange forward and are connected with forward deceleration transmission system, described deceleration transmission system comprise for cutter on the cutter radial feeding travelling gear 6 of driving rack engagement.
Like this, in radial feed control section, by radial feed control motor, output turns to after deceleration transmission system slowdown, by cutter radial feeding travelling gear, rotation is delivered to driving rack again and is converted into the flexible translation of cutter radial, and then realize the flexible control of cutter radial, have simple in structurely, control reliable advantage.
Wherein, described deceleration transmission system comprises harmonic reducing mechanism, and harmonic reducing mechanism output is connected with a radial feed power transmission shaft 19, and radial feed power transmission shaft 19 front ends extend in segment of cutting cylindrical shell 1 internal cavities and cutter radial feeding travelling gear 6 is set. Like this, adopt harmonic reducing mechanism as deceleration transmission system, can greatly reduce gearratio, can improve better the control accuracy of cutter radial feeding output.
Wherein, described harmonic reducing mechanism comprises the coaxial harmonic wave input gear 13 arranging on radial feed control motor output shaft, several harmonic wave idler gears 14 outside harmonic wave input gear 13, are evenly arranged, harmonic wave idler gear 14 and harmonic wave input gear 13 engage, outside harmonic wave idler gear 14, there is one and the coaxial harmonic wave runner 15 arranging of harmonic wave input gear, harmonic wave runner 15 has ring gear and harmonic wave idler gear 14 engages, the outer harmonic wave flexbile gear 16 that is arranged with of harmonic wave runner 15, harmonic wave runner 15 outer surfaces are also symmetrically installed with two radially ripple generation members 17 of outwardly convex along diametric two ends, ripple generation member 17 outer ends and harmonic wave flexbile gear 15 inner surface butts also make harmonic wave deformation of flexible wheel ovalize, harmonic wave flexbile gear 15 outer surfaces are formed with external toothing and engage with the relatively-stationary internal gear 18 of radial feed control section cylindrical shell the two ends of oval major axis and one, the output that harmonic wave flexbile gear 16 front ends are harmonic reducing mechanism and being connected with radial feed power transmission shaft 19 rear ends. like this, when work, radial feed control motor output shaft drives the rotation of harmonic wave idler gear by harmonic wave input gear, the rotation of drive harmonic wave runner, then drive harmonic wave flexbile gear and fixing external toothing to coordinate the reversion of generation differential by ripple generation member, in this harmonic reducing mechanism, first realize first order deceleration transmission by harmonic wave idler gear like this, and then drive radial feed power transmission shaft rotation output after realizing differential gearing by harmonic wave flexbile gear, therefore can greatly improve deceleration transmission effect, the stability and the controllability that have ensured cutter radial feeding, improved radial feed control accuracy. again further, described ripple generation member 17 is the roller arranging vertically. the setting of roller can coordinate forming between ripple generation member and harmonic wave flexbile gear to roll like this, greatly reduce friction and reduce wearing and tearing raising transmission stability, and the more important thing is that herein structure is arranged to bear and after cutting buffer brake is delivered to herein, can be converted into roller and upwarding pressure along harmonic wave runner footpath when cutter work, even if having the component of other directions of part also can be offset by roller self rotation, can again back not transmit, produce good reversion self-locking effect, greatly improved the stability of cutter work. again further, described radial feed power transmission shaft 19 entirety are discoid for the ladder that point diameter reduces, and the end positions that is arranged in cutter radial feeding travelling gear on radial feed power transmission shaft is respectively arranged on segment of cutting cylindrical shell 1 inner chamber by a bearing. can ensure better like this stable drive, improve stability. again further, being upwards provided with grafting groove in 19 rear end weeks of radial feed power transmission shaft coordinates realization to be connected with the grafting projection that the circumferential evagination of harmonic wave flexbile gear 16 front end edge arranges. in grafting groove, leave like this space of radially fluctuating for the grafting projection of harmonic wave flexbile gear front end, the vibration that adopts this flexible connection transmission can harmonic carcellation flexbile gear radial deformation transmission process to be brought, ensures transmission stability. described radial feed control section cylindrical shell 11 forward end seal are fixed by socket in segment of cutting cylindrical shell 1 outside, rear end further, and described internal gear 18 is fixedly installed on segment of cutting cylindrical shell 1 rear end surface of internal cavity, and structural integrity better and is more beneficial to sealing setting like this. harmonic reducing mechanism front position is also provided with entirety harmonic wave wheel seat 20 in the form of annular discs further, described harmonic wave wheel seat 20 peripheral positions are fixed on a step surface of radial feed control section cylindrical shell 11 inner chamber front portions, and the rotary gear shaft of described harmonic wave idler gear inside is fixed on harmonic wave wheel seat. the installation setting that each member in convenient harmonic reducing mechanism is set of harmonic wave wheel seat like this. further, on described harmonic wave runner 15 rear end end faces, there is the spacing preiection of evagination and coordinate and be inserted into that in a stopper slot of harmonic wave wheel seat 20 front end end faces, to realize harmonic wave runner radially spacing, on described radial feed power transmission shaft 19 rear end end faces, just harmonic wave runner 15 positions are had vertically to spacing preiection backward for realizing the location on axially to harmonic wave runner 15. after assembling, can realize better like this to harmonic wave runner the location on radial and axial, and make to reserve installing space between radial feed power transmission shaft rear end end face and harmonic wave idler gear front end end face, this installing space is realized assembling to harmonic wave idler gear and spacing for harmonic wave idler gear at its rotary gear shaft front end mounting limit pin.
Wherein, the described control section that rotates in a circumferential direction, comprise a control section cylindrical shell 21 that rotates in a circumferential direction that is coaxially arranged on mechanical arm middle part, the control section that rotates in a circumferential direction cylindrical shell 21 inside are provided with to rotate in a circumferential direction controls motor 22, described rotating in a circumferential direction controls that motor 22 output shafts are connected with radial feed control section cylindrical shell 11 rear ends forward and for driving radial feed control section cylindrical shell 11 to rotate, described in control section cylindrical shell 21 first halfs that rotate in a circumferential direction be coaxially around in that radial feed control section cylindrical shell is latter half of is provided with slip-ring brush 23 outward and between the two.
Like this, control driven by motor radial feed control section cylinder back-end integral-rotation by rotating in a circumferential direction, realize the control to cutter rotation processing, the slip-ring brush wherein adopting ensures the conducting of the control electric current of the motor of having realized radial feed control section inner barrel, has ensured the reliability of Tool Control.
Wherein, described control section cylindrical shell first half and the radial feed control section cylindrical shell of rotating in a circumferential direction is also provided with rotary support bearing arrangement between latter half of, described rotary support bearing arrangement comprises and is formed at the ball assembly space rotating in a circumferential direction between control section cylindrical shell and radial feed control section cylindrical shell, inside and outside having, described ball assembly space inner chamber is relatively formed at the spherical crown surface that rotates in a circumferential direction on control section cylinder inner surface and radial feed control section barrel outer surface and for coordinating assembling with ball 24, also there is the retainer chamber of the cuboid structure between two spherical crown surfaces, one circle end disconnection is installed but the overall retainer 25 that is annular that encloses in retainer chamber, on described retainer 25, also embed rotationally assembling for ball 24 along being circumferentially evenly provided with ball pilot hole. like this, can realize better the rotary support to radial feed control section cylindrical shell, greatly improve smooth rotation. further, the corresponding ball assembly space connection of the described control section barrel outer surface that rotates in a circumferential direction is provided with ball and enters fluting, ball enters in fluting and is fixed with a fluting sprue 26 by latch 27, and fluting sprue 26 inner surfaces are consistent with ball assembly space inner wall surface. packing into of convenient like this ball and retainer.
Wherein, on described control motor 22 output shafts that rotate in a circumferential direction, be provided with rotary drive driving gear 27, rotary drive driving gear 27 peripheries have been evenly arranged multiple rotary drive idler gears 28 and the engagement of rotary drive driving gear, and rotary drive idler gear 28 engages and drives radial feed control section cylindrical shell 11 to rotate with the rotary drive internal gear 29 that is arranged on radial feed control section cylinder back-end surface of internal cavity simultaneously. The gearratio that conveniently regulating and controlling rotary drive is set of rotary drive idler gear like this, can further improve the stability of transmission simultaneously, improves device resistance to overturning.
Wherein, the control section that rotates in a circumferential direction cylinder lumen middle part vertically extends internally and forms a partition 30, cut off 30 rears and form the control motor mounting space that rotates in a circumferential direction, described rotating in a circumferential direction controlled motor output shaft rotationally through cutting off 30 settings, and described rotary drive idler gear 28 is mounted on partition. Convenient so each member assembling arranges.
Wherein, described axial stretching control section, comprise that is coaxially arranged on a mechanical post-brachial axial stretching control section cylindrical shell 31, in axial stretching control section cylindrical shell 31 rear end inner chambers, axial stretching control motor 32 is installed, described axial stretching control motor 32 output shafts arrange forward and are connected and can drive the elastic motion of control section cylindrical shell 21 that rotates in a circumferential direction with control section cylindrical shell 21 rear ends that rotate in a circumferential direction by steering gear. Like this, the simple in structure and convenient axial stretching control realizing cutter.
Wherein, described steering gear comprises one and the coaxial leading screw 33 arranging of mechanical arm, leading screw 33 rear ends are connected with axial stretching control motor 31 output shafts, leading screw 33 front ends are inserted in a coaxial nut cylindrical shell 34 arranging, nut cylindrical shell 34 rear end inner chambers are provided with internal thread and leading screw 33 engages, nut cylindrical shell 34 front ends are connected with control section cylindrical shell 21 rear ends that rotate in a circumferential direction, and steering gear also comprises the guide frame rotating for the control section cylindrical shell 21 that prevents from rotating in a circumferential direction. Like this, rely on the setting of screw nut driven pair, adopt simple structure to realize the axial translation that the rotation output of axial stretching control motor output shaft is converted into the control section cylindrical shell that rotates in a circumferential direction, simple in structure and control reliable.
Wherein, described guide frame comprises that being positioned at axial stretching control section cylindrical shell 31 front ends extends to forward the latter half of outer guide section of the control section cylindrical shell 21 that rotates in a circumferential direction, comprise and be arranged on vertically the latter half of gathering sill 35 of the control section barrel outer surface that rotates in a circumferential direction, also comprise that of being engaged in gathering sill 35 is fixed on the guide runner 36 of guide section inner surface. Like this, by guide frame be arranged on the control section cylindrical shell that rotates in a circumferential direction latter half of outside, can, in convenient for assembly, improve better overall structure stability.
Wherein, described nut cylindrical shell 34 front ends and rotate in a circumferential direction and be provided with floating connecting structure between control section cylindrical shell 21 rear ends, described floating connecting structure comprises that being arranged on all cambered outwards dishes 37 that articulates of nut cylindrical shell 34 front end edges articulates ring 38 with one that is fixed on control section cylindrical shell 21 rear ends that rotate in a circumferential direction, and articulates ring 38 rear end inner surface inwardly protrudings and is articulated in to articulate and coil on 37 trailing flanks, floating connecting structure also comprises a cross contiguous block 39 that is arranged on position in the middle part of nut barrel front end end face and between in the middle part of the control section cylinder back-end end face that rotates in a circumferential direction, the leading flank of cross contiguous block 39 and rotate in a circumferential direction and be radially formed with the first concave-convex fit structure between control section cylinder back-end end face, between the trailing flank of cross contiguous block 39 and nut cylindrical shell 34 front end end faces, be radially formed with the second concave-convex fit structure, the first concave-convex fit structure and the second concave-convex fit structure setting party to mutually vertical and make to coordinate after cross contiguous block 39 leading flank and rotate in a circumferential direction between control section cylindrical shell 21 rear end end faces and the trailing flank of cross contiguous block 39 and nut cylindrical shell 34 front end end faces between all leave flying height. like this, nut cylindrical shell promotes by cross contiguous block transferring power the control section cylindrical shell that rotates in a circumferential direction and advances, articulate transferring power and drive the control section cylindrical shell that rotates in a circumferential direction to retreat by articulating ring and articulating dish, advancing in feed process, the concave-convex fit structure of cross contiguous block both sides can transmitting torque and thrust, can allow that by flying height cross contiguous block produces the beat of certain angle and do not affect the transmission of thrust and moment of torsion simultaneously, and then the shake producing while just having eliminated screw nut driven auxiliary driving, ensure the stability of front end transmission. better select is that the apical grafting face that in the first concave-convex fit structure and the second concave-convex fit structure, groove and projection coordinate is separately the arc along groove length direction. arc cooperation can make rotate and do not produce collision along arc in cross contiguous block swing process like this, improves better transmission stability.
Wherein, cutter stable supporting device comprises the outer support mechanism construction section of the one section of minor diameter that is formed at handle of a knife outer surface, on outer support mechanism construction section, along the outer support mechanism of many groups is circumferentially evenly installed, outer support mechanism comprises can be controlled radially outwardly directed support member. Convenient like this realization support in processed hole to handle of a knife self. When enforcement, as preferably, outer support mechanism construction section can be arranged on axial stretching control section barrel outer surface and be positioned at inner leading screw position, and the effect of supporting & stablizing handle of a knife better can be played in this position.
Wherein, described outer support mechanism can be the outer support mechanism of link-type, the outer support mechanism of described link-type comprises the hydraulic cylinder 40 and two bar linkage structures that arrange vertically, two bar linkage structures comprise first connecting rod 41, second connecting rod 42 and support member 43, one end of first connecting rod 41 is hinged on the outer support mechanism construction section in hydraulic cylinder extension arm front, one end of second connecting rod 42 is hinged on hydraulic cylinder 40 telescopic arm front positions, the other end of first connecting rod 41 and second connecting rod 42 can drive first connecting rod 41 and second connecting rod 42 to relatively move compared with far-end when being all jointly hinged on and making hydraulic cylinder extension arm protruding on the support member 43 same hinges in inner side and by radially outside jack-up of support member 43. have so simple in structure, control the advantages such as convenient, simultaneously two bar linkage structures can make support member overhang to hold out against at processed hole inwall back link to present as far as possible and approach radial direction and hold out against further, produce like this self-locking effect, hydraulic cylinder need not be born the larger reaction force that pushes against, and ensures that support effect is reliable and stable. further, described hydraulic cylinder 40 is dual-rod hydraulic cylinder, and described two bar linkage structures are symmetrically arranged in before the telescopic arm at hydraulic cylinder two ends. like this, realize front and back two place's strong points and improve better stability of strutting system. as optimization, hydraulic cylinder extension arm front end is connected with a coaxial sleeve and is located at the synchronous collar 44 on outer support mechanism construction section, and second connecting rod 42 is hinged on the synchronous collar. can ensure better so each group of outer support mechanism uniformity. again further, the arcwall face that the overall rectangular bulk of described support member 43 and outer surface are evagination, can be beneficial to support member outer surface so better and inwall laminating in hole to be processed realizes support. further described support member 43 outer surfaces have one deck elastomeric layer. like this, when contemporary machining hole internal diameter varies causes support member outer surface arc inconsistent, can lean on strain to realize laminating, improve support strength.
In addition, described outer support mechanism can also be the outer support mechanism (referring to Fig. 5) of Wedge-type, the outer support mechanism of described Wedge-type comprises the hydraulic cylinder 45 arranging vertically, be successively set on voussoir 46 and the support member 47 in hydraulic cylinder 45 telescopic arm fronts, one end of the overall curved block structure of support member 47 and arcuate directions is hinged on formation the inner on outer support mechanism construction section, the other end is connected to and on voussoir, forms outer end under a back-moving spring 48 effect, this side surface that voussoir 46 contacts with support member 47 is the inclined-plane radially tilting inwards towards support member direction, voussoir 46 is connected with hydraulic cylinder extension arm front end away from support member 47 one end. like this, controlling hydraulic cylinder extension arm stretches out and can drive voussoir to lean on its inclined-plane to coordinate to drive that support member outer end is protruding to be connected on the inwall of processed hole, therefore have simple in structurely, easy to assembly, control the advantage such as be quick on the draw, while support, the reaction force major part of support member is delivered on voussoir and forms along the radially inner component of voussoir and then be cancelled simultaneously, and hydraulic cylinder need not be born the larger reaction force that pushes against, and ensures that support effect is reliable and stable. further, described support member 47 outer ends are provided with support roller 50 and contact with voussoir and processed hole inwall to realize by support roller surface and support, and have reduced frictional force like this by rolling, improve stability of strutting system. on the inclined-plane of described voussoir 46, direct-axis is to being provided with chute further, and described roller cooperation is spacing rolls in chute. realize so better spacingly, ensure the stationarity of outer support process. further, described hydraulic cylinder 45 is dual-rod hydraulic cylinder, and before the telescopic arm at two ends, is all furnished with voussoir and the supporting piece structure of cooperation. like this, realize front and back two place's strong points and improve better stability of strutting system. as optimization, voussoir 46 corresponding in the outer support mechanism of each group forms synchronous slip ring 49 along the entirety that is circumferentially connected to ring-type. can ensure better so each group of outer support mechanism uniformity. further, described back-moving spring 48 can be for being arranged on the torsion spring of the inner hinged place of support member or being a circle coil tension spring that is connected in the form of a ring support member outer end. the former torsion spring structure is small and exquisite simple, and the latter's coil tension spring can further improve support member action synchronism.
Claims (5)
1. one kind is beneficial to the boring cutter installation method of eliminating gap, the cutter of boring tool device is radially arranged in Cutting tool installation manner groove along handle of a knife, in the installing handle part of cutter, be provided with driving rack for engagement realizes cutter radial feeding transmission with transmission input gear, it is characterized in that, driving rack is designed to side by side and two of dislocation, and the side of two joining side by side between driving rack arranges inclined-plane, a place fit structure, between cutter and the axial front and back of Cutting tool installation manner groove, position arranges corresponding wedge and forms the second inclined-plane, place fit structure again, the dislocation that promotes to drive the two oblique fit structures in place to be linked by the insertion of wedge when installation and be converted into two driving racks is moved, until two driving racks simultaneously and the engagement of transmission input gear tight, now complete that wedge is fixing completes assembling.
2. the boring cutter installation method of eliminating gap that is beneficial to as claimed in claim 1, it is characterized in that, this method realizes in the boring tool device of following structure, boring tool device front end is segment of cutting, described segment of cutting comprises a segment of cutting cylindrical shell, segment of cutting cylindrical shell forward position is provided with Cutting tool installation manner groove and for mounting cutter, cutter comprises and is used to form the tool bit part of cutting edge and installs and the installing handle part of cutter radial feeding transmission for realizing, and the cutting-edge of tool bit part exposes outside Cutting tool installation manner groove; On the medial surface of installing handle part, be provided with driving rack for realizing cutter radial feeding transmission;
Described driving rack comprises the first driving rack and the second driving rack, and the first driving rack and the second driving rack shift to install side by side and engage simultaneously and for the cutter radial feeding travelling gear of realizing cutter radial feeding transmission; Cutting tool installation manner groove front side inwall be obliquely installed and front side inwall in this end consistent with cutter radial direction of feed tilt toward the direction near cutter, between this Cutting tool installation manner groove front side inwall and cutter front side outer wall, be equipped with a wedge, it is inclined-plane that wedge and Cutting tool installation manner groove front side inwall are affixed a side, and it is face consistent with tool feeding direction that wedge is affixed a side with cutter;
The first driving rack and the second driving rack are realized interlocking by the corresponding concave-convex fit structure arranging of the side of joining side by side and are coordinated, and have an oblique face that is slidably matched that favours the side that joins in described concave-convex fit structure.
3. the boring cutter installation method of eliminating gap that is beneficial to as claimed in claim 2, is characterized in that, tool bit part adopts Hardmetal materials to make, and installing handle part adopts No. 45 steels to obtain.
4. the boring cutter installation method of eliminating gap that is beneficial to as claimed in claim 2, is characterized in that, the larger one end of wedge is fixed near the stop screw of the segment of cutting barrel outer surface of Cutting tool installation manner groove front side inwall spacing fixing.
5. the boring cutter installation method of eliminating gap that is beneficial to as claimed in claim 2, it is characterized in that, be affixed a side along perpendicular to cutter radial direction of feed, multiple roller slots being set at wedge and cutter, described multiple roller slot is evenly intervally arranged along cutter radial direction of feed, is provided with that hollow roller and hollow roller outer surface are exposed to roller slot and for fitting with cutter leading flank in described roller slot.
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| CN201610197741.2A CN105598728B (en) | 2016-03-31 | 2016-03-31 | A kind of boring cutter installation method for being conducive to eliminate gap |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106491166A (en) * | 2016-11-30 | 2017-03-15 | 重庆西山科技股份有限公司 | Rotary cutter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106491166B (en) * | 2016-11-30 | 2023-07-04 | 重庆西山科技股份有限公司 | Rotary cutting tool |
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| Publication number | Publication date |
|---|---|
| CN105598728B (en) | 2018-06-19 |
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