CN203711885U - Boring cutter for precisely boring axial through holes of turntable - Google Patents
Boring cutter for precisely boring axial through holes of turntable Download PDFInfo
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- CN203711885U CN203711885U CN201420017042.1U CN201420017042U CN203711885U CN 203711885 U CN203711885 U CN 203711885U CN 201420017042 U CN201420017042 U CN 201420017042U CN 203711885 U CN203711885 U CN 203711885U
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- cutting
- tooth
- cutter
- spiral
- boring
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Abstract
A boring cutter for precisely boring axial through holes of a turntable comprises a hilt and a cutter bit. The cutter bit comprises two to four cutter teeth, an axially extending chip groove is formed between every two adjacent cutter teeth, each cutter tooth comprises a progressive cutting tooth and a main cutting tooth positioned below the progressive cutting tooth, a cutting surface of each progressive cutting tooth is a trapezoidal spiral surface, a nominal blade and a progressive cutting edge are arranged on two waist edges of the cutting surface of each progressive cutting tooth respectively, each progressive cutting edge is arranged below the corresponding nominal blade along the spiral direction of the cutting surface of the corresponding progressive cutting tooth, a cutting surface of each main cutting tooth is a spiral curved surface, a main cutting edge is arranged on the spiral tail side line of the cutting surface of each main cutting tooth and laterally inclined towards the axis of the cutter bit, and the turning directions of the cutting surfaces of the main cutting teeth and the progressive cutting teeth are consistent. The cutter includes a progressive cutting portion and a main cutting portion, three sides of the turntable can be integrally machined without changing tools or combining three portions of the turntable, machining timeliness is improved, and the characteristic of high machining efficiency of numerical control machining is brought into full play.
Description
Technical field
The utility model relates to the machine tool that a kind of right boring hole is used, and specifically a kind of boring cutter of right boring turntable axially extending bore, belongs to machining metal cutting field.
Background technology
Turntable is as one of key member of rotary tablet machine, and it is divided into upper punch plate, middle mould, lower punch plate three-decker.Be of a size of example with one: the upper surface correspondence of upper punch plate and lower punch plate is distributed with the vertical through hole of tens φ 22+0.010mm, for installing, lower plunger.On the end face of middle mould, be distributed with the same, the φ 26+0.030mm of lower punch plate equivalent amount and the coaxial aperture of 22+0.010mm, for mould is installed.Require the through hole in corresponding upper punch plate, the hole of the φ 26 on middle mould, the concentricity tolerance of the through hole in lower punch plate is controlled in the scope of 0.025mm.
Processing upper punch plate, middle mould, aperture in lower punch plate, processing is originally on transformed special purpose lathe, first boring, carry out bore hole with afterbody jackscrew jack-up special holder again, the complete hole of per car boring, just need carry out tool setting to next hole again, adjusts turntable angle, with the method car boring drill drift of rotary table hole inefficiency, time-consuming taking a lot of work.Along with the extensive use of numerical control device, adopt turntable is divided into upper punch plate at present, middle mould, lower punch plate three parts, work in-process carries out respectively bore hole in the heart, then this three part is combined.The cutter using now can meet the aperture processing at one time in upper punch plate or middle mould or lower punch plate substantially.While processing second upper punch plate or middle mould or lower punch plate, just must change cutter.While changing cutter, must again carry out tool setting to numerical control machining center, verification hole tolerance, and process after the dish of upper, middle and lower, need, by three dish combinations, then must readjust the axiality in corresponding aperture.
Due to existing cutter life of short problem, although can use advanced CNC numerical control machining center, improve machining accuracy.But, but increase the clustered operation after parts processing is complete compared with processing mode originally, and be the axiality that ensures the corresponding aperture in three cards when combination, need to take a long time, therefore cannot highlight the superiority that CNC efficiency of numerical control (NC) machining is high.
Problem to be solved by this invention is to provide a kind of long-life dedicated tool, and turntable is carried out to entirety processing, avoids because existing cutter life is short the state of turntable parts processing.In order to raise the efficiency, give full play to the working ability of CNC numerical control machining center.
Utility model content
The purpose of this utility model is to provide a kind of long service life, can carry out entirety processing to three of a turntable card, on the turntable that ensures processing, in the coaxial precision in corresponding aperture, also give full play to the boring cutter of a kind of right boring turntable axially extending bore of the high efficiency speciality of digital control processing mode.
The technical scheme in the invention for solving the technical problem is: a kind of boring cutter of right boring turntable axially extending bore, comprise handle of a knife and cutter head, and described cutter head comprises 2 to 4 cutters tooth, each cutter tooth is uniform setting along the circumferential direction; Between adjacent two cutters tooth, be provided with axially extended chip area; Each cutter tooth comprises gradual cutting teeth and is positioned at the main cutting tooth of gradual cutting teeth lower end; The cutting face of described gradual cutting teeth is the helicoid of trapezoidal shape, and trapezoidal small end upwards, and the hand of spiral is left-handed or dextrorotation; Two waist limits in described gradual cutting teeth cutting face, one is nominal blade, another is progressive cutting sword, between described nominal blade and the axis of described cutter head, have an acute angle tapering, described progressive cutting sword is arranged on the below of described nominal blade along the hand of spiral in gradual cutting teeth cutting face; The base in described gradual cutting teeth cutting face is served as reasons axially to the spiral camber of downward-extension in the cutting face of described main cutting tooth, and the hand of spiral is consistent with the hand of spiral in described gradual cutting teeth cutting face, described main cutting tooth cutting face is main cutting edge in the sideline of hand of spiral end, and described main cutting edge rolls tiltedly to the axis of described cutter head.
Further, the spiral angle in described main cutting tooth cutting face is not less than the spiral angle in described gradual cutting teeth cutting face.
Further, described progressive cutting sword rolls tiltedly to the axis that deviates from described cutter head, and the spiral angle between described progressive cutting sword and the axis direction of described cutter head is 30 ° to 60 °, the spiral angle between described main cutting edge and described cutter head axis direction is 20 ° to 30 °.
Further, in the shape of a spiral, its hand of spiral is consistent with the hand of spiral in described gradual cutting teeth cutting face for described chip area.
Further, described cutter head comprises 3 cutters tooth, and the bent arc radius between upper surface, the lower surface of adjacent two cutters tooth is R
1.
Further, on same cutter tooth, the circumferential deflection angle in the sideline, top of relative this side, the sideline, bottom of each side is 32.04 °, circumferential deflection angle between sideline, bottom on the opposite flank of adjacent two cutters tooth is 100 °, and the circumferential deflection angle between the sideline, top of the side of described cutter tooth and the described chip area axial sideline in direction of rotation is 81.70 °.
Further, the axial height of described cutter head is 10 to 16mm, and the axial height of described main cutting edge is 3 to 6mm, and the axial height of described handle of a knife is 23 to 30mm.
The beneficial effects of the utility model are: the related boring cutter of the utility model has progressive cutting part and main cutting part, thereby can increase the service life, so use this boring cutter to carry out entirety processing to three of a turntable card, and ensure the coaxial precision between the corresponding aperture on turntable, no longer need to carry out tool changing or three parts of turntable are combined, improve the ageing of processing, thereby give full play to the advantage that digital control processing working (machining) efficiency is high.
Brief description of the drawings
Fig. 1 is perspective view of the present utility model;
Fig. 2 is the main TV structure schematic diagram that the utility model amplifies;
Fig. 3 is the plan structure schematic diagram that the utility model amplifies;
Fig. 4 is that the utility model is overlooked the enlarged diagram in direction;
Fig. 5 is main TV structure schematic diagram of the present utility model;
Fig. 6 be in Fig. 5 I-I to cross-sectional view;
Fig. 7 be in Fig. 5 J-J to cross-sectional view;
Fig. 8 be in Fig. 5 K-K to cross-sectional view;
Fig. 9 is plan structure schematic diagram of the present utility model;
Figure 10 be in Fig. 9 L-L to cross-sectional view;
Figure 11 be in Fig. 9 M-M to cross-sectional view;
In figure: 1 handle of a knife, 2 cutter heads, 21 gradual cutting teeths, 211 progressive cutting swords, 212 nominal blades, 22 main cutting teeth, 221 main cutting edges, 23 chip areas.
Detailed description of the invention
For ease of understanding the technical solution of the utility model, below in conjunction with accompanying drawing, its technology contents is described further.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of boring cutter of right boring turntable axially extending bore, comprise handle of a knife 1 and cutter head 2, described cutter head 2 comprises three cutters tooth, each cutter tooth is uniform setting along the circumferential direction, the bent arc radius of the joining place between the bent arc radius of the joining place between adjacent two cutter tooth upper surfaces and adjacent two cutter tooth lower surfaces is R1, and R1 value is 2.5mm.Between adjacent two cutters tooth, be provided with axially extended chip area 23.In the shape of a spiral, its hand of spiral is dextrorotation to described chip area 23.
Each cutter tooth of described cutter head 2 is divided into gradual cutting teeth 21 and is positioned at the main cutting tooth 22 of these gradual cutting teeth 21 lower ends.The radial end face of described gradual cutting teeth 21 is its cutting face, and the cutting face of described gradual cutting teeth 21 is the helicoid of trapezoidal shape, and trapezoidal small end upwards, and the hand of spiral is dextrorotation.Two waist limits in described gradual cutting teeth 21 cutting faces, one is nominal blade 212, another is progressive cutting sword 211, between described nominal blade 212 and the axis of described cutter head 2, there is a tapering that is acute angle, nominal blade 212, at the size value of radial direction, is coordinated to determine according to the aperture value of the bore hole on processing rotating disk.Correspondingly, along with the variation of nominal size, the radial dimension of gradual cutting teeth 21 and main cutting tooth 22 also changes relatively, to meet the needs of Boring of different pore size.
Described progressive cutting sword 211 is arranged on the below of described nominal blade 212 along the clockwise direction in gradual cutting teeth 21 cutting faces.Make to be between described nominal blade 212 and the axis of described cutter head 2 tapering of acute angle, be not only convenient to location, and can effectively disperse cutting force, ensure the service life of boring cutter.
The radial end face of described main cutting tooth 22 is its cutting face, and the base in described gradual cutting teeth 21 cutting faces is served as reasons axially to the spiral camber of downward-extension in the cutting face of described main cutting tooth 22, and the hand of spiral is dextrorotation.The dextrorotation angle in described main cutting tooth 22 cutting faces is greater than the dextrorotation angle in described gradual cutting teeth 21 cutting faces.Described main cutting tooth 22 cutting faces are main cutting edge 221 in the sideline of clockwise direction end, and described main cutting edge 221 rolls tiltedly (to axle center convergence) to the axis of described cutter head 2.
In order to strengthen cutting precision, and further extend the service life of boring cutter cutter, described progressive cutting sword 211 rolls tiltedly to the axis that deviates from described cutter head 2, and spiral angle α between described progressive cutting sword 211 and the axis direction of described cutter head 2
1, the angle between the axis direction of the relatively described cutter head 2 of the initial two-end-point line of progressive cutting sword 211 is 30 °, the spiral angle α between described main cutting edge 221 and described cutter head 2 axis directions
2, the angle between the axis direction of the relatively described cutter head 2 of the initial two-end-point line of main cutting edge 221 is 20 °.The axis of described progressive cutting sword 211 described cutter head 2 relative to main cutting edge 221 is arranged to certain angle, can increase and decrease the cutting face of cutting edge, increase the service life, simultaneously in to the whole working angles of turntable, progressive cutting sword 211 and main cutting edge 221 are carried out to grinding, be that limit cutting edge carries out grinding to blade, thereby effectively ensured machining accuracy.
For example, for the process tool of φ 22+0.010mm bore hole, the radially radius size of cutter head 2 upper surfaces is 8mm, and the maximum radial radius of main cutting tooth 22 is 11 ± 0.005mm.The maximum outside diameter of described handle of a knife 1 is 11mm, and the smallest radial size on described cutter head 2 is consistent with the external diameter of described handle of a knife 1 upper end.In Fig. 2, the circular arc R of handle of a knife 1 upper groove is 1.5mm, angle α
3be 80 °, height H
4for 2mm, H
2for the axial height (H of cutter head described in 15mm 2
1with H
2summation) be 12mm, and the axial height H of described main cutting edge 221
2for 5.21mm, the axial height H of described handle of a knife 1
3for 25mm.As shown in Figure 4, on same cutter tooth, the circumferential deflection angle in the sideline, top (sideline, bottom CD and sideline, top AB as shown) of relative this side, the sideline, bottom of each side is 32.04 °; Circumferential deflection angle between sideline, bottom (as sideline, bottom CD and EF) on the opposite flank of adjacent two cutters tooth is set to 100 °; The sideline, top of the side of described cutter tooth and the described chip area axial sideline in direction of rotation is (as sideline, top
and sideline GH) between circumferential deflection angle be 81.70 °.
Except the technical characterictic described in description, be the known technology of those skilled in the art.
Claims (8)
1. a boring cutter for right boring turntable axially extending bore, comprises handle of a knife and cutter head, it is characterized in that: described cutter head comprises 2 to 4 cutters tooth, and each cutter tooth is uniform setting along the circumferential direction; Between adjacent two cutters tooth, be provided with axially extended chip area; Each cutter tooth comprises gradual cutting teeth and is positioned at the main cutting tooth of gradual cutting teeth lower end; The cutting face of described gradual cutting teeth is the helicoid of trapezoidal shape, and trapezoidal small end upwards, and the hand of spiral is left-handed or dextrorotation; Two waist limits in described gradual cutting teeth cutting face, one is nominal blade, another is progressive cutting sword, between described nominal blade and the axis of described cutter head, have an acute angle tapering, described progressive cutting sword is arranged on the below of described nominal blade along the hand of spiral in gradual cutting teeth cutting face; The base in described gradual cutting teeth cutting face is served as reasons axially to the spiral camber of downward-extension in the cutting face of described main cutting tooth, and the hand of spiral is consistent with the hand of spiral in described gradual cutting teeth cutting face, described main cutting tooth cutting face is main cutting edge in the sideline of hand of spiral end, and described main cutting edge rolls tiltedly to the axis of described cutter head.
2. the boring cutter of a kind of right boring turntable axially extending bore according to claim 1, is characterized in that: the spiral angle in described main cutting tooth cutting face is not less than the spiral angle in described gradual cutting teeth cutting face.
3. the boring cutter of a kind of right boring turntable axially extending bore according to claim 1, it is characterized in that: described progressive cutting sword rolls tiltedly to the axis that deviates from described cutter head, and the spiral angle between described progressive cutting sword and the axis direction of described cutter head is 30 ° to 60 °, the spiral angle between described main cutting edge and described cutter head axis direction is 20 ° to 30 °.
4. according to the boring cutter of a kind of right boring turntable axially extending bore described in any one in claims 1 to 3, it is characterized in that: in the shape of a spiral, its hand of spiral is consistent with the hand of spiral in described gradual cutting teeth cutting face for described chip area.
5. according to the boring cutter of a kind of right boring turntable axially extending bore described in any one in claims 1 to 3, it is characterized in that: described cutter head comprises 3 cutters tooth, the bent arc radius between upper surface, the lower surface of adjacent two cutters tooth is R
1.
6. the boring cutter of a kind of right boring turntable axially extending bore according to claim 4, is characterized in that: described cutter head comprises 3 cutters tooth, and the bent arc radius between upper surface, the lower surface of adjacent two cutters tooth is R1.
7. the boring cutter of a kind of right boring turntable axially extending bore according to claim 6, it is characterized in that: on same cutter tooth, the circumferential deflection angle in the sideline, top of relative this side, the sideline, bottom of each side is 32.04 °, circumferential deflection angle between sideline, bottom on the opposite flank of adjacent two cutters tooth is 100 °, and the circumferential deflection angle between the sideline, top of described cutter tooth upper side and the described chip area axial sideline in direction of rotation is 81.70 °.
8. the boring cutter of a kind of right boring turntable axially extending bore according to claim 7, is characterized in that: the axial height of described cutter head is 10 to 16mm, and the axial height of described main cutting edge is 3 to 6mm, and the axial height of described handle of a knife is 23 to 30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420017042.1U CN203711885U (en) | 2014-01-10 | 2014-01-10 | Boring cutter for precisely boring axial through holes of turntable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420017042.1U CN203711885U (en) | 2014-01-10 | 2014-01-10 | Boring cutter for precisely boring axial through holes of turntable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203711885U true CN203711885U (en) | 2014-07-16 |
Family
ID=51151084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420017042.1U Withdrawn - After Issue CN203711885U (en) | 2014-01-10 | 2014-01-10 | Boring cutter for precisely boring axial through holes of turntable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203711885U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103706823A (en) * | 2014-01-10 | 2014-04-09 | 聊城万合工业制造有限公司 | Boring tool for precisely boring rotary table axial through holes |
-
2014
- 2014-01-10 CN CN201420017042.1U patent/CN203711885U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103706823A (en) * | 2014-01-10 | 2014-04-09 | 聊城万合工业制造有限公司 | Boring tool for precisely boring rotary table axial through holes |
| CN103706823B (en) * | 2014-01-10 | 2015-12-09 | 聊城万合工业制造有限公司 | A kind of boring cutter of right boring turntable axially extending bore |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140716 Effective date of abandoning: 20151209 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |