CN102773526B - Tool assembly capable of adjusting cutting rotation radius - Google Patents
Tool assembly capable of adjusting cutting rotation radius Download PDFInfo
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- CN102773526B CN102773526B CN201210287877.4A CN201210287877A CN102773526B CN 102773526 B CN102773526 B CN 102773526B CN 201210287877 A CN201210287877 A CN 201210287877A CN 102773526 B CN102773526 B CN 102773526B
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- compact heap
- trip bolt
- cutting
- screw bore
- radial screw
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Abstract
The invention discloses a tool assembly capable of adjusting the cutting rotation radius. The tool assembly comprises a tool holder body and a cutting component arranged on the tool holder body, wherein the clamping part of the tool holder body is provided with a cavity arranged along an axial direction and more than two radial thread holes distributed along a circumferential direction; the radial thread holes are communicated with the cavity; fastening screws are arranged inside the radial thread holes; and the positioning part of the cutting component is placed in the cavity and is located and compressed through the fastening screws. The tool assembly capable of adjusting the cutting rotation radius has the advantages that the cutting rotation radius can be regulated at will, the adjustment is simple and convenient, and the clamping is stable and reliable.
Description
the application is divisional application
the applying date of original application is: on 08 31st, 2010
the application number of original application is: 201010267794.X
the denomination of invention of original application is: the toolbox of adjustable cutting turn radius
Technical field
The present invention relates to the cutter holder of cutting tool, relate in particular to the toolbox of adjustable cutting turn radius.
Background technology
People are in order to improve tool sharpening efficiency and to reduce cutter manufacturing cost, and external diameter is adjustable, and cutter holder rotation class cutter is widely used in indexable drilling cutters.Usually, external diameter is adjustable, and cutter holder is, by a kind of special structure, lathe power is delivered to cutting part, this cutter holder except can be directly and lathe connect transferring power, also there is center tunable arrangement, pass through to adjust the distance between cutting part central shaft and cutter holder central shaft, thereby realize the change of cutting part with respect to the radius of gyration of cutter holder central shaft.This kind of cutter holder is compared with not having the adjustable cutter holder in center, have that complex structure, annex quantity are many, quality large, long feature overhangs, long owing to overhanging in working angles, quality causes greatly general machine tool chief axis power under-supply, thereby cause in process, machined surface quality is not good, processing dimension fluctuation is large, machining accuracy is lower.In addition, the device that general center is adjustable be adopt the cylindrical surface structure with inside and outside decentraction drill holder or interior for oval structure be outward the drill holder of cylindrical structure, its principle be all by change drill holder and cutting part shank contact position to tool holder body central shaft between distance, thereby change the radius of gyration of cutting part cutting tip with respect to central shaft, the former defect is mainly to adjust cutting turn radius, cutting turn radius as different in needs just must be changed different drill holders, and its cost is too high; The latter's defect is mainly that oval structure is line contact with contacting of cylindrical structure, and tool holder body is less to the chucking power of cutting part, in the time of high-efficient cutting, because of the little and stressed large vibration that easily produces of chucking power.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, provides a kind of cutting turn radius to regulate arbitrarily, and regulates simple and convenient, to clamp reliable and stable adjustable cutting turn radius toolbox.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of toolbox of adjustable cutting turn radius, comprise tool holder body and be installed in the cutting part in tool holder body, the clamping part of described tool holder body is provided with die cavity and circumferentially more than two radial screw bore of distribution of edge offered vertically, described radial screw bore communicates with described die cavity, in each radial screw bore, be all equiped with trip bolt, the localization part of described cutting part is placed in die cavity and compresses location by trip bolt.
In described die cavity, be provided with more than one compact heap, the localization part of described cutting part is provided with at least one plane of orientation, the total quantity of described compact heap and plane of orientation equates with the quantity of described radial screw bore, each radial screw bore is corresponding with a compact heap or a plane of orientation, and described trip bolt acts on compact heap and plane of orientation the localization part of described cutting part is compressed to location.
Described plane of orientation is provided with one, and the radial screw bore corresponding with described plane of orientation is other is provided with scale mark, and the trip bolt being installed in this radial screw bore is provided with dial at its end surfaces.
The cutter tip inner side of described cutting part studs with inner blade, and described cutter tip outside studs with outer blade, and described outer blade has a radially outer cutting edge, and described radially outer cutting edge is orthogonal to plane of orientation.
The localization part of described cutting part is provided with the surface of revolution, and described compact heap comprises at least one in rigidity briquetting and elastic press, and described rigidity briquetting is provided with the inner peripheral surface coordinating with the described surface of revolution; Described elastic press is provided with the multiple inner peripheral surfaces that coordinate with the described surface of revolution, and be provided with clearance plane between adjacent two inner peripheral surfaces, described inner peripheral surface, clearance plane and the surface of revolution are the face of cylinder, described inner peripheral surface and the surface of revolution have common radius R 1, the radius of described clearance plane is R2, and R1 > R2.
Described radial screw bore and trip bolt are equipped with four, and described compact heap is provided with three, and described plane of orientation is provided with one, and in three compact heaps, the compact heap that is positioned at plane of orientation opposite is rigidity briquetting, and other two compact heaps are elastic press.
In described die cavity, be provided with compact heap, the quantity of described compact heap and position are corresponding one by one with quantity and the position of radial screw bore, and described trip bolt acts on compact heap the localization part of described cutting part is compressed to location.
In described trip bolt, there is one to be provided with dial at its end surfaces, the other scale mark that is provided with of the radial screw bore corresponding with this trip bolt.
The inwall of described die cavity is provided with compact heap mounting groove, described compact heap is placed in compact heap mounting groove, compact heap is provided with screwed hole, be connected to trip bolt on compact heap stepped, its path section is connected with described screwed hole, large footpath section is connected with described radial screw bore, and large footpath section pitch is greater than path section pitch.
The hole central axis of described radial screw bore and the central axis of tool holder body are coplanar.
Compared with prior art, the invention has the advantages that:
The toolbox of adjustable cutting turn radius of the present invention makes the central axis of tool holder body and the central shaft of cutting part produce relative distance by the degree of depth that is screwed into that regulates trip bolt, thereby change the processing external diameter of cutting part, this regulative mode is simple and convenient, cutting turn radius can regulate arbitrarily, and tool holder body can form reliable strong clamping to cutting part by trip bolt, guarantees the cutting quality after cutting part biasing.Coordinate with scale mark by dial, realizing can be to the eccentric distance quantitative adjusting of cutting part while adjusting trip bolt, thereby reach the object of accurate control cutting part processing external diameter, other trip bolt is mainly to make tool holder body and cutting part close-coupled, strengthen tool holder body to cutting part clamping force, guarantee that tool holder body can effectively be delivered to cutting part by power.The outer blade of cutter tip has a radially outer cutting edge, radially outer cutting edge is orthogonal to plane of orientation, when the position of plane of orientation quantitatively adjusting by the trip bolt with dial, the direction of motion of cutting part is the axis direction of the trip bolt with dial, make outer cutting edge just in time in cutting depth direction, make the position adjustments of synchronous equal amount, thereby more easily control the actual cut radius of gyration.Compact heap comprises at least one in rigidity briquetting and elastic press, rigidity briquetting more easily and the surface of revolution close contact of cutting part, elastic press has better adaptive ability in the time that bias is adjusted, the present invention can all establish four by radial screw bore and trip bolt, compact heap is established three, plane of orientation is established one, in three compact heaps, the compact heap that is positioned at plane of orientation opposite is rigidity briquetting, other two compact heaps are elastic press, when adjusting the processing external diameter value △ d of cutting part, the rigidity briquetting on the trip bolt with dial and this trip bolt opposite all needs the central axis of relative tool holder body to adjust △ d/2, at this moment rigidity briquetting forms completely and contacts with localization part, elastic press contacts with localization part completely by strain, increase its contact area, keep good clamping stability.Be connected to trip bolt on compact heap stepped, its path section is connected with described screwed hole, large footpath section is connected with described radial screw bore, and large footpath section pitch is greater than path section pitch, under the effect of this pitch difference, in the process that trip bolt is tightened, the distance between compact heap and compact heap mounting groove increases gradually, and compresses the localization part of cutting part by compact heap; While unscrewing trip bolt, compact heap discharges the clamping to localization part, cutting part can be taken off from tool holder body, compact heap, owing to keeping being threaded and can not coming off with trip bolt, conveniently clamps cutting part again, makes the replacing of cutting part and dismounting easier.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present invention;
Fig. 2 is the three-dimensional structural representation that splits of the present invention;
Fig. 3 is tool holder body front view of the present invention;
Fig. 4 is the B-B cutaway view of Fig. 3;
Fig. 5 is the cutting part front view in the present invention;
Fig. 6 is rigidity briquetting the first stereogram in the present invention;
Fig. 7 is rigidity briquetting the second stereogram in the present invention;
Fig. 8 is elastic press the first stereogram in the present invention;
Fig. 9 is elastic press the second stereogram in the present invention;
Figure 10 is the scale trip bolt stereogram in the present invention;
Figure 11 is the trip bolt stereogram without scale in the present invention;
Figure 12 is the A-A cutaway view of Fig. 1;
Figure 13 is the perspective view of another embodiment of the present invention;
Figure 14 is the front view of cutting part in another embodiment of the present invention;
Figure 15 is the mounting structure schematic diagram of compact heap in another embodiment of the present invention.
In figure, each label represents:
100, tool holder body; 101, body afterbody; 102, clamping part; 103, power face; 104, fairing face; 105, technique plane; 106, hole central axis; 107, radial screw bore; 108, die cavity; 109, scale mark; 110, compact heap mounting groove; 111, central axis; 200, trip bolt; 201, end surfaces; 202, hexagon is recessed; 203, dial; 300, compact heap; 300a, rigidity briquetting; 300b, elastic press; 301, inner peripheral surface; 302, clearance plane; 303, screwed hole; 400, cutting part; 401a, inner blade; 401b, outer blade; 402, chip area; 403, central shaft; 404, the surface of revolution; 405, localization part; 406, cutter tip; 407, datum plane; 408, radially outer cutting edge; 409, plane of orientation.
The specific embodiment
Fig. 1 to Figure 12 shows the toolbox embodiment of a kind of adjustable cutting turn radius of the present invention, this toolbox comprises tool holder body 100 and is installed in the cutting part 400 in tool holder body 100, tool holder body 100 comprises body afterbody 101 and clamping part 102, the clamping part 102 of tool holder body 100 is provided with die cavity 108 and circumferentially more than two radial screw bore 107 of distribution of edge offered vertically, radial screw bore 107 communicates with die cavity 108, the interior trip bolt 200 that is all equiped with of each radial screw bore 107, the localization part 405 of cutting part 400 is placed in die cavity 108, between the inwall of localization part 405 and die cavity 108, be provided with gap, localization part 405 is compressed and is positioned in die cavity 108 by trip bolt 200, in the present embodiment, body afterbody 101 is provided with the power face 103 of pyramidal structure, this power face 103 is for being connected with lathe, and the moment of torsion that lathe is produced is delivered to tool holder body 100, clamping part 102 outer surfaces are fairing face 104, uniform some technique planes 105 on fairing face 104, to offer radial screw bore 107 on clamping part 102.Make the central axis 111 of tool holder body 100 and the central shaft 403 of cutting part 400 produce relative distance by the degree of depth that is screwed into that regulates trip bolt 200, thereby change the processing external diameter of cutting part 400, this regulative mode is simple and convenient, cutting turn radius can regulate arbitrarily, and tool holder body 100 can form reliable strong clamping to cutting part 400 by trip bolt 200, guarantee the cutting quality after cutting part 400 biasings.
In the present embodiment, in die cavity 108, be provided with at least one compact heap 300, the localization part 405 of cutting part 400 is provided with at least one plane of orientation 409, the total quantity of compact heap 300 and plane of orientation 409 equates with the quantity of radial screw bore 107, each radial screw bore 107 is corresponding with a compact heap 300 or plane of orientation 409, it is recessed 202 that trip bolt 200 outer ends are provided with hexagon for inserting spanner, and trip bolt 200 acts on the localization part 405 to cutting part 400 on compact heap 300 and plane of orientation 409 and compresses location after tightening.In the present embodiment, radial screw bore 107 and trip bolt 200 are provided with four, the hole central axis 106 of radial screw bore 107 is coplanar with the central axis 111 of tool holder body 100, compact heap 300 is provided with three, plane of orientation 409 is provided with one, the other scale mark 109 that is provided with of the radial screw bore 107 corresponding with plane of orientation 409, the trip bolt 200 being installed in this radial screw bore 107 is provided with dial 203 at its end surfaces 201, dial 203 coordinates with scale mark 109, realizing can be to the eccentric distance quantitative adjusting of cutting part 400 while adjusting trip bolt 200, thereby reach the object that accurate control cutting part 400 is processed external diameter, and other trip bolt 200 is mainly to make tool holder body 100 and cutting part 400 close-coupled, strengthen tool holder body 100 to cutting part 400 clamping forces, guarantee that tool holder body 100 can effectively be delivered to cutting part 400 by power.In external diameter adjustment process, first unclamp the trip bolt 200 without dial 203, adjust cutting external diameter by the trip bolt 200 that has dial 203, in the time that 0 scale place of dial 203 and scale mark 109 align, the cutting turn radius adjusted value of cutting part 400 is zero, can realize by rotating this trip bolt 200 with dial 203 increase and the minimizing that external diameter is adjusted, concrete adjustment amount is determined according to dial 203 and the relative position of scale mark 109, after adjusting to the right place, alternately slowly adjust again the trip bolt 200 without dial 203, realize effective clamping of the localization part 405 of tool holder body 100 to cutting part 400.In the present embodiment, the cutter tip 406 of cutting part 400 is provided with chip area 402, cutter tip 406 inner sides stud with inner blade 401a, cutter tip 406 outsides stud with outer blade 401b, outer blade 401b has a radially outer cutting edge 408, radially outer cutting edge 408 is orthogonal to plane of orientation 409, therefore, when the position of plane of orientation 409 quantitatively adjusting by this trip bolt 200 with dial 203, the direction of motion of cutting part 400 is the axis direction of this trip bolt 200 with dial 203, make radially outer cutting edge 408 just in time in cutting depth direction, make the position adjustments of synchronous equal amount, thereby more easily control and make the actual cut radius of gyration.
In the present embodiment, the inwall of die cavity 108 is provided with compact heap mounting groove 110, compact heap 300 is placed in compact heap mounting groove 110, compact heap 300 is provided with screwed hole 303, be connected to trip bolt 200 on compact heap 300 stepped, its path section is connected with screwed hole 303, large footpath section is connected with radial screw bore 107, and large footpath section pitch is greater than path section pitch, under the effect of this pitch difference, in the process that trip bolt 200 is tightened, distance between compact heap 300 and compact heap mounting groove 110 increases gradually, and compress the localization part 405 of cutting part 400 by compact heap 300, while unscrewing trip bolt 200, compact heap 300 discharges the clamping to localization part 405, cutting part 400 can be taken off from tool holder body 100, compact heap 300 is owing to keeping being threaded with trip bolt 200 and can not come off, conveniently again clamp cutting part 400, make the replacing of cutting part 400 and dismounting easier.
The localization part 405 of cutting part 400 is provided with the surface of revolution 404, and compact heap 300 is rigidity briquetting 300a or elastic press 300b, and rigidity briquetting 300a is provided with the inner peripheral surface 301 coordinating with the surface of revolution 404; Elastic press 300b is provided with the multiple inner peripheral surfaces 301 that coordinate with the surface of revolution 404, and be provided with clearance plane 302 between adjacent two inner peripheral surfaces 301, inner peripheral surface 301, clearance plane 302 are the face of cylinder with the surface of revolution 404, inner peripheral surface 301 has common radius R 1 with the surface of revolution 404, can the thrust of maximum rigidity briquetting 300a to localization part 405; The radius of clearance plane 302 is R2, and R1 > R2, and in addition, clearance plane 302 can also be the arbitrary surface with respect to inner peripheral surface 301 indents.In three compact heaps 300 of the present embodiment, the compact heap 300 that is positioned at plane of orientation 409 opposites is rigidity briquetting 300a, and other two compact heaps 300 are elastic press 300b.In the time adjusting the processing external diameter value △ d of cutting part 400, the rigidity briquetting 300a on the trip bolt 200 with dial 203 and these trip bolt 200 opposites all needs the central axis 111 of relative tool holder body 100 to adjust △ d/2, if at this moment other two compact heaps 300 also contact completely for rigidity briquetting 300a can not form with localization part 405, the elastic press 300b adopting in the present embodiment can contact with localization part 405 completely by strain, increase its contact area, keep good clamping stability.
Figure 13 to Figure 15 shows the toolbox embodiment of another kind of adjustable cutting turn radius of the present invention, the present embodiment and above-described embodiment are basic identical, difference is only to be provided with in die cavity 108 four compact heaps 300, the localization part 405 of cutting part 400 is not set bit plane 409, be provided with near localization part 405 places with outer blade 401b radially outside the orthogonal datum plane 407 of cutting edge 408, in four compact heaps 300, the compact heap 300 that is positioned at datum plane 407 sides and datum plane 407 opposite side is rigidity briquetting 300a, other two compact heaps 300 are elastic press 300b, four trip bolts 200 act on respectively the localization part 405 to cutting part 400 on a compact heap 300 and compress location, wherein a trip bolt 200 is provided with dial 203 at its end surfaces 201, the other scale mark 109 that is provided with of the radial screw bore 107 corresponding with this trip bolt 200, when installation, this trip bolt 200 is perpendicular to datum plane 407, to carry out quantitatively eccentric adjustment.
Above-mentioned is preferred embodiment of the present invention, not the present invention is done to any pro forma restriction.Although the present invention discloses as above with preferred embodiment, but not in order to limit the present invention.Any those of ordinary skill in the art, in the situation that not departing from technical solution of the present invention scope, can utilize the technology contents of above-mentioned announcement to make many possible variations and modification to technical solution of the present invention, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not depart from technical solution of the present invention,, all should drop in the scope of technical solution of the present invention protection any simple modification made for any of the above embodiments, equivalent variations and modification according to the technology of the present invention essence.
Claims (3)
1. the toolbox of an adjustable cutting turn radius, comprise tool holder body (100) and be installed in the cutting part (400) in tool holder body (100), the clamping part (102) of described tool holder body (100) is provided with die cavity (108) and circumferentially more than two radial screw bore (107) of distribution of edge offered vertically, described radial screw bore (107) communicates with described die cavity (108), in each radial screw bore (107), be all equiped with trip bolt (200), the localization part (405) of described cutting part (400) is placed in die cavity (108) and by trip bolt (200) and compresses location, it is characterized in that: in described die cavity (108), be provided with compact heap (300), the quantity of described compact heap (300) and position are corresponding one by one with quantity and the position of radial screw bore (107), described trip bolt (200) acts on the upper localization part (405) to described cutting part (400) of compact heap (300) and compresses location, in described trip bolt (200), there is one to be provided with dial (203) at its end surfaces (201), the other scale mark (109) that is provided with of the radial screw bore (107) corresponding with this trip bolt (200), the localization part (405) of described cutting part (400) is provided with the surface of revolution (404), described compact heap (300) comprises at least one in rigidity briquetting (300a) and elastic press (300b), described rigidity briquetting (300a) is provided with the inner peripheral surface (301) coordinating with the described surface of revolution (404), described elastic press (300b) is provided with the multiple inner peripheral surfaces (301) that coordinate with the described surface of revolution (404), and between adjacent two inner peripheral surfaces (301), be provided with clearance plane (302), described inner peripheral surface (301), clearance plane (302) are the face of cylinder with the surface of revolution (404), described inner peripheral surface (301) has common radius R 1 with the surface of revolution (404), the radius of described clearance plane (302) is R2, and R1 > R2.
2. the toolbox of adjustable cutting turn radius according to claim 1, it is characterized in that: the inwall of described die cavity (108) is provided with compact heap mounting groove (110), described compact heap (300) is placed in compact heap mounting groove (110), compact heap (300) is provided with screwed hole (303), be connected to trip bolt (200) on compact heap (300) stepped, its path section is connected with described screwed hole (303), large footpath section is connected with described radial screw bore (107), and large footpath section pitch is greater than path section pitch.
3. the toolbox of adjustable cutting turn radius according to claim 2, is characterized in that: the hole central axis (106) of described radial screw bore (107) is coplanar with the central axis (111) of tool holder body (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210287877.4A CN102773526B (en) | 2010-08-31 | 2010-08-31 | Tool assembly capable of adjusting cutting rotation radius |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210287877.4A CN102773526B (en) | 2010-08-31 | 2010-08-31 | Tool assembly capable of adjusting cutting rotation radius |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010267794 Division CN101927367B (en) | 2010-08-31 | 2010-08-31 | Cutter assembly with adjustable cutting turn radius |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102773526A CN102773526A (en) | 2012-11-14 |
| CN102773526B true CN102773526B (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210287877.4A Active CN102773526B (en) | 2010-08-31 | 2010-08-31 | Tool assembly capable of adjusting cutting rotation radius |
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| CN (1) | CN102773526B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108246883A (en) * | 2018-02-12 | 2018-07-06 | 珠海格力精密模具有限公司 | Punch fixed structure and with its punch-head assembly |
| CN109158664B (en) * | 2018-08-14 | 2021-06-18 | 株洲钻石切削刀具股份有限公司 | Indexable drilling tool |
| CN117548720A (en) * | 2024-01-05 | 2024-02-13 | 常州市山禾数控刀具有限公司 | Hole machining tool with adjustable tool holder and capable of preventing tool holder from being tilted outwards |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1493051A (en) * | 1922-09-15 | 1924-05-06 | William L O'brien | Boring tool |
| CN1958231A (en) * | 2006-04-18 | 2007-05-09 | 邱寿山 | Method for fine adjusting amount of feed of boring cutter tool, and adjustment device |
| CN101262969A (en) * | 2005-09-13 | 2008-09-10 | 彗星集团控股有限公司 | Device for detachably coupling two parts |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE502005005738D1 (en) * | 2004-07-15 | 2008-12-04 | Kaiser Heinz Ag | boring tool |
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2010
- 2010-08-31 CN CN201210287877.4A patent/CN102773526B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1493051A (en) * | 1922-09-15 | 1924-05-06 | William L O'brien | Boring tool |
| CN101262969A (en) * | 2005-09-13 | 2008-09-10 | 彗星集团控股有限公司 | Device for detachably coupling two parts |
| CN1958231A (en) * | 2006-04-18 | 2007-05-09 | 邱寿山 | Method for fine adjusting amount of feed of boring cutter tool, and adjustment device |
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| CN102773526A (en) | 2012-11-14 |
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