CN1059487A - A kind of cutting tip - Google Patents

A kind of cutting tip Download PDF

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Publication number
CN1059487A
CN1059487A CN 90108184 CN90108184A CN1059487A CN 1059487 A CN1059487 A CN 1059487A CN 90108184 CN90108184 CN 90108184 CN 90108184 A CN90108184 A CN 90108184A CN 1059487 A CN1059487 A CN 1059487A
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CN
China
Prior art keywords
cutting edge
blade
cutting
central body
jaw
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Granted
Application number
CN 90108184
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Chinese (zh)
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CN1035242C (en
Inventor
阿米尔·萨特兰
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Iscar Ltd
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Iscar Hartmetall GmbH
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Priority to CN90108184A priority Critical patent/CN1035242C/en
Publication of CN1059487A publication Critical patent/CN1059487A/en
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Publication of CN1035242C publication Critical patent/CN1035242C/en
Anticipated expiration legal-status Critical
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Abstract

A kind of cutting tip, comprise a central body portion with vertical symmetrical plane, by described central body portion and form by front and back separately and by the first and second wide basically cutting edges in conjunction with the opposite end of forming of a pair of trend, the back of each end all tilts a certain amount of in a direction, make the back and had the interval between the side wall of grooving.The mid point normal of described first cutting edge is described relatively symmetrical plane tilt alpha angle on first direction, therefore and the described second cutting edge mid point normal is described relatively symmetrical plane tilt alpha angle on the rightabout second, the described cutting edge 2 α angles that tilt each other.

Description

A kind of cutting tip
The application relates to a kind of cutting tip, particularly but be not only the cutting tip that is used for the end face grooving.
This cutting tip is normally removable and releasably be clamped between the jaw of handle of a knife.Add man-hour at the end face grooving of making the annular end face groove, use the jaw that bends to annular so that when cutting cannelure, it can insert in the cannelure in the clear, and this has been known.In addition, the back of blade is not hindered when inserting cannelure for ease of blade, and it also is known making bending shape.Yet the blade of the crooked back of this band has produced a lot of problems when using the conventional moulded technology to produce.Substitute as the curved blades back is pushed out recently, and it has flat back, and it tilts, and its numerical value and direction will make the back and be cut out between the side wall of groove has the gap.
In general, particularly to cut the problem that blade occurred of end face groove relevant with the blade structure with a pair of opposite cutting edge that is provided for interchangeable section groove blade.These blade structures with opposite cutting edge obviously are useful, and it can be saved the material of cutting tip and can make the rapid transposition of blade, so that use when blunt at opposite cutting edge, can use a new cutting edge.Yet the trend of the restricted cutting groove depth of structure with cutting tip of a pair of opposite cutting edge, because the grooving of realizing by a cutting edge, anyly want that the attempt of extending its cutting depth makes that all second cutting edge is that opposite cutting edge thrusts, it is that opposite cutting edge is stuck in the cannelure that the result causes second cutting edge.
Be disclosed in a kind of double cutting edge section groove blade that is designed to not limit cutting depth among the european patent application-0150901, its first cutting edge be arranged on the rectangular substantially same plane of second cutting edge in.This section groove blade product particularly can bring problem when suitable smear metal forms device and need to change common mould pressing process when cutting edge is equipped with.
The purpose of this invention is to provide a kind of satisfy substantially above-mentioned an urgent demand and reduce basically or overcome above-mentioned shortcoming new improvement section groove blade.
According to a kind of blade provided by the present invention, it includes the central body portion of a vertical symmetrical plane;
By described central body portion and formed separately rake and back, and by the first and second wide basically cutting edges in conjunction with the opposite end of a pair of trend that forms, the back of each end tilts a certain amount of in a direction, make the back and the side wall of the groove that is cut between have at interval.
It is characterized in that, the normal of the described first cutting edge mid point is relative described symmetrical plane tilt alpha angle on the rightabout at the mid point normal of described relatively symmetrical plane tilt alpha angle and described second cutting edge on the first direction second, the 2 α angles and above-mentioned cutting edge tilts each other.
Can utilize known mould pressing process to produce rapidly according to this blade of the present invention.Therefore, avoided the necessity of grinding behind blade behind the sintering basically.
Preferablely be that this blade all has an offside cutting edge that at right angles is provided with basically with respect to separately end cutting edge in each end.Can be with this blade in the transversely realization cutting of the longitudinal axis of blade.When cutting end face groove, the relative workpiece of blade is done laterally and is relatively moved, till the whole turning of the end face of workpiece.For the effective equably turning of the interior core that guarantees end face is arrived, the handle of a knife of fixed blade designed according to this invention, the preceding cutting edge that is designed to blade is basically along the rotation extension line setting perpendicular to workpiece.
In order to understand the present invention better and to express in practice and how to implement, referring now to description of drawings.
Wherein:
Fig. 1 is the perspective view according to end face section groove blade of the present invention, corresponding jaw on the handle of a knife arranged side by side.
Fig. 2 is the perspective view of blade clamping in handle of a knife.
Fig. 3 a is for more than you know, the perspective view after blade intermediate projections portion is removed.
Fig. 3 b is the front view of the end of blade shown in Fig. 3 a.
Fig. 4 is a cylindrical work perspective view that bears the end face grooving.
Fig. 5 is a cylindrical work perspective view that bears facing.
Fig. 6 is the cutting tip shown in Fig. 4 and the cylindrical work cutaway view along VI-VI line.
Fig. 7 is a partial enlarged drawing represented among Fig. 4.
Fig. 8 is the sketch for the minimum interval of blade in the groove in the calculating chart 7.
The detailed description of most preferred embodiment.
As shown in the figure, cutting tip 1 is to be made of an elongated elements, and its foot 2a has rectangular cross section, and its topmost 2b comprises a central body portion 3, the side wall copline of the side wall of this central body 3 and foot 2 α.Central body 3 has at last vertical groove face 4.And bottom 2a has the vertical groove face 5 of bottommost.The groove trend of above and below (4,5) is opposite, and forms around central longitudinal axis parallel to each other 6,7. Longitudinal axis 6,7 is arranged in accompanying drawing 3 and 5 symmetrical planes of being seen 16.
Forming whole with central body 3 is the opposite end 8a of a pair of trend, 8b.They have last rake 9a respectively, 9b, frontal plane 10a, 10b and rear flank face 11a separately, 12a and 11b, 12b.Rake 9a is by a preceding cutting edge 13a and side cutting edge 14b, and 15b is the edge.And rake 9b is by preceding cutting edge 13b and side cutting edge 14b, and 15b constitutes, back 11a, 12a and 11b, 12b is from side cutting edge 14a, 15a and 14b, 15b tilts towards bottom 2a, so that between these back and the side wall that is cut groove the interval is arranged, just can find out with reference to figure 5.
Particularly can find out Fig. 3 from scheming, rake 9a, 9b tilts with respect to the plane of symmetry 16 in the opposite direction separately with their cutting edge.Therefore, the normal of the mid point of cutting edge 13a is with respect to symmetrical plane 16 tilt alpha angles, and the normal of the mid point of cutting edge 13b is with respect to symmetrical plane 16 tilt alpha angles, so 2 α angles tilt mutually between bite 13a and the 13b.
As can be seen, blade 1 is designed to be clamped between the jaw 21,22 of a pair of handle of a knife 20 as shown in Figure 4 from Fig. 1 and Fig. 2.Make fin 23 below the jaw 21, in the groove 4 of the blade 1 of can packing into; And jaw 22 above make fin 24, in the groove 5 of the blade 1 of can packing into.Jaw 21 and 22 is bending so that see approximate convex on the plane of paper.As shown in Figure 2, blade 1 is bumped between the pawl 21,22 in use, fits among groove 4 and 5 so that rib 23 and 24 is even respectively, and then, jaw is clipped by the device (not shown).
Be contained in blade 1 in the handle of a knife shown in Figure 2 in the use of cutting end face groove and turner part end face, now illustrate with reference to Fig. 4 and Fig. 5 respectively.As can be seen from Figure 4, a cylindrical work 25 in order to understand, has cutd open 1/4th of end face circumference, and this workpiece has around the rotating end face 26 of its longitudinal axis clockwise direction, and and is putting the cutting tip 1 of making cannelure 27.
As shown in Figure 5, when workpiece rotated, the blade on the cutting tool moved radially to the center of workpiece, caused the facing of workpiece thus.
As shown in Figure 4, carry out end face grooving part, the different-diameter scope should be used different blades.Yet, carry out the facing part, a single blade just can be used in all surfaces because when blade when workpiece centre moves, no longer keep the water jacket wall.
Be reference with Fig. 6 and Fig. 7 now, blade 1 is done one with respect to being provided with of workpiece 25 and is described and describe the using method that blade obtains unrestricted cutting groove depth in detail.Can clearly be seen that from Fig. 4 the curvature of jaw 21,22 can make the cutter of clamping blade enter easily among the groove 27.Can find out that from Fig. 7 blade is contained in the jaw 21,22, make its preceding cutting edge 13a be provided with along the radius 28 of the circumference of the workpiece 25 of rotation.On this position, back cutting edge 13b with respect to preceding cutting edge 13a at angle, when it projected on another line 29 that is parallel to cutting edge 13a, its width was little more quite a lot of than the width of cutting edge 13a.Suppose that present workpiece clockwise direction rotation and cutting edge move on the axis of workpiece direction inwards, cannelure 27 has just been made so.This well width is corresponding to the width of cutting edge 13a.Because the flat back 11a that uses, 12a tilts, and the side wall of groove 27 is always left in these back.And as mentioned above, when the width considered with respect to groove 27, the width of back cutting edge 13b is compared quite little with the width of groove 27.Therefore, the degree of depth of end face groove is not subjected to the restriction of blade lengths.
In view of the blade that is provided has side cutting edge 14a, the fact of 15a, the transverse movement of blade shown in Figure 5 plays effect for the width of enlarged slot and is when moving on the workpiece centre direction in this transverse movement, and guarantee can turning whole work-piece end face and do not stay any residue core for the cutting edge 13a that places along workpiece radius at first.
Referring now to Fig. 8, it is basically corresponding to Fig. 7.In order to understand the special tectonic of relevant blade, particularly geometry is how to guarantee effectively that the not only not interrupted fully insertion groove of blade interval interior but also between cell wall and back cutting edge always is enough to avoid exotic to be stuck in cell wall and the danger between the cutting edge afterwards.
As seeing among Fig. 8:
The width of forward and backward cutting edge 13a of W=and 13b
W 1=cell wall 27a and 27b and by and by the distance between the straight-line intersection of cutting edge 13b
The workpiece radius r of β=by cutting edge 13a 1Radius r with the intersection point that passes through cutting edge director 13b line 2Between angle
Angle between 2 α=cutting edge 13a and the 13b
△W= (W 1-W)/2
△ G=is cell wall 27a on the one hand, and 27b is the annular trace 31a that is marked separately by the relative end of cutting edge 13b on the other hand, the effective clearance between the 31b.
This △ G is equivalent to not make exotic to be stuck in the full-size of the exotic between cutting edge 13b and the cell wall.
It can be expressed as:
△G=△W·COS(2α-β)
The present invention has specified the purposes of blade in the building up by welding groove, just is readily appreciated that also same blade can be used in vertical turning and processed.
The structure of above-mentioned geometry blade makes and provides a kind of and have the opposite rake of a pair of trend and cutting groove depth is not subjected to the cutting tip of the cutting edge of any restriction to become possibility, and reflects production economy many of this blade significantly.

Claims (4)

1, a kind of cutting tip comprises a central body portion (3) with vertical symmetrical plane (16);
By described central body portion (3) and formed separately rake (9a, 9b) and back (11a, 12a, 11b, 12b) and by the first and second wide basically cutting edge (13a, 13b) in conjunction with the opposite end of a pair of trend that forms (8a, 8b), the back (11a of each end, 12a, 11b 12b) tilts a certain amount ofly in a direction, make back and being cut between the side wall of groove have at interval;
It is characterized in that: the normal of the mid point of described first cutting edge (13a) is relative described symmetrical plane (16) tilt alpha angle on the rightabout at the mid point normal of described relatively symmetrical plane (16) tilt alpha angle on the first direction and described second cutting edge (13b) second, thereby, above-mentioned cutting edge (13a, 13b) the 2 α angles that tilt each other.
2, cutting tip according to claim 1 is characterized in that: (8a 8b) forms offside cutting edge (14a, a 15a in each end; 14b, 15b), (13a 13b) at right angles is provided with basically with respect to separately end cutting edge for they.
3, cutting tip according to claim 1 and 2, it is characterized in that: formed flush mounting (4 on described central body has and on the bottom surface of described blade, 5), the jaw (21 of joining handle of a knife (20) in order to idol, 22) the corresponding flush mounting that forms (23,24) on the opposed faces.
4, a kind of being used for according to claim 1, the handle of a knife of 2 or 3 described cutting tips, comprise a pair of by flush mounting (23,24) the jaw that forms (21,22), join by on the central body portion (3) of described blade (1) in order to idol, the flush mounting (4 of the formed correspondence of lower surface, 5), described jaw (21,22) be bending so that allow to insert among the cannelure, it is characterized in that: described jaw (21,22) is designed to be convenient to the described blade of clamping (1), and its outside cutting edge (13a) vertically is provided with respect to the longitudinal axis of handle of a knife (20).
CN90108184A 1990-09-06 1990-09-06 Cutting insert Expired - Lifetime CN1035242C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN90108184A CN1035242C (en) 1990-09-06 1990-09-06 Cutting insert

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN90108184A CN1035242C (en) 1990-09-06 1990-09-06 Cutting insert

Publications (2)

Publication Number Publication Date
CN1059487A true CN1059487A (en) 1992-03-18
CN1035242C CN1035242C (en) 1997-06-25

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CN90108184A Expired - Lifetime CN1035242C (en) 1990-09-06 1990-09-06 Cutting insert

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101888911B (en) * 2007-12-04 2012-08-15 山高刀具公司 Cutting insert for chip removing machining
CN102821895A (en) * 2010-05-11 2012-12-12 三菱综合材料株式会社 Detachable insert type cutting tool
CN105345049A (en) * 2015-12-15 2016-02-24 株洲钻石切削刀具股份有限公司 Grooving cutter
CN105492149A (en) * 2014-01-14 2016-04-13 株式会社钨钛合金 Plate-shaped member of cutting tool, tool block, clamp member, and cutting tool
CN107443506A (en) * 2017-08-30 2017-12-08 安顺市檀木世家工艺品有限公司 A kind of wooden pearl tool special
CN112792518A (en) * 2021-03-17 2021-05-14 东莞市毅祺五金制品有限公司 Turning tool assembly for machining optical fiber groove by using numerical control milling machine and machining process thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53114588A (en) * 1977-03-17 1978-10-06 Mitsubishi Metal Corp Tip for cramp bit
US4332513A (en) * 1980-07-24 1982-06-01 General Electric Company Face grooving tool
IL84171A (en) * 1987-10-14 1990-09-17 Iscar Ltd Cutting insert and tool holder therefor

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101888911B (en) * 2007-12-04 2012-08-15 山高刀具公司 Cutting insert for chip removing machining
CN102821895A (en) * 2010-05-11 2012-12-12 三菱综合材料株式会社 Detachable insert type cutting tool
CN102821895B (en) * 2010-05-11 2014-04-16 三菱综合材料株式会社 Detachable insert type cutting tool
US8911185B2 (en) 2010-05-11 2014-12-16 Mitsubishi Materials Corporation Detachable insert type cutting tool
CN105492149A (en) * 2014-01-14 2016-04-13 株式会社钨钛合金 Plate-shaped member of cutting tool, tool block, clamp member, and cutting tool
CN105492149B (en) * 2014-01-14 2018-01-30 株式会社泰珂洛 The knife rest and cutting element of cutting element
CN105345049A (en) * 2015-12-15 2016-02-24 株洲钻石切削刀具股份有限公司 Grooving cutter
CN107443506A (en) * 2017-08-30 2017-12-08 安顺市檀木世家工艺品有限公司 A kind of wooden pearl tool special
CN112792518A (en) * 2021-03-17 2021-05-14 东莞市毅祺五金制品有限公司 Turning tool assembly for machining optical fiber groove by using numerical control milling machine and machining process thereof

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Publication number Publication date
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C15 Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993)
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Granted publication date: 19970625