CN201537714U - Three fourth circumferential type multistage multi-cutter spacing adjustable invertible boring cutter - Google Patents
Three fourth circumferential type multistage multi-cutter spacing adjustable invertible boring cutter Download PDFInfo
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- CN201537714U CN201537714U CN200920250163XU CN200920250163U CN201537714U CN 201537714 U CN201537714 U CN 201537714U CN 200920250163X U CN200920250163X U CN 200920250163XU CN 200920250163 U CN200920250163 U CN 200920250163U CN 201537714 U CN201537714 U CN 201537714U
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Abstract
The utility model relates to a three fourth circumferential type multistage multi-cutter spacing adjustable invertible boring cutter. The boring cutter comprises a cutter body, a chip flute and a blade, wherein the cutter body is a three fourth circumferential type structure and split with the blade; the chip flute is quarter circumferential straight flute; the three fourth circumferential type cutter body is at least provided with three cutter spacings which are respectively positioned at second, third and fourth steps; and a cutter trough is respectively arranged on the second, the third and the fourth steps in which blades are respectively arranged. The boring cutter has few members, light weight and little centrifugal force due to simplified structure, can carry out high-speed cutting (the speed is greater than 100m/min), and effectively ensure the boring accuracy of the cutter; and the non-integrated structure can adjust, transposition or replace the blades, thus being capable of prolonging the service lives of the cutter and the blades, reducing the cutting tooling cost and further having certain practicality.
Description
Technical field
The utility model relates to metal cutting tool, the adjustable indexable boring cutter in multistage multitool position of particularly a kind of 3/4 circumference formula.
Background technology
Metal cutting tool is one of key element in the machining, is to realize workpiece processing technology ground important leverage, and under the condition certain such as machine tool, frock clamp, the quality of cutting tool has just become a crucial factor.Cutting tool for boring at present commonly used generally has three kinds of monoblock type, welded type and mechanical clamping types: 1. overall structure is to make cutting edge on cutter hub; 2. Welding Structure is that blade is soldered on the cutter hub of steel; 3. mechanical clamping structure has two kinds again, a kind of be the blade clamping on cutter hub, another kind be the good cutter head clamping of soldering on cutter hub.
More than three kinds of forms cutting tool for boring or be limited to " overall structure " or be limited to " blade soldering " or be limited to " blade clamping mode " and all can not accomplish multistage, multitool position, adjustable, indexable simultaneously.This has influenced the serviceability of cutter to a great extent.There are a rationally economic use threshold value in efficient, quality, the life-span that can not accomplish cutter.Therefore there is improved space in prior art.
Summary of the invention
In view of the deficiency that prior art exists, the purpose of this utility model is that a kind of cutting tool for boring of new structure is provided---the adjustable indexable boring cutter in multistage multitool position of 3/4 circumference formula.Multistage, multitool position, adjustable, indexable boring cutter are a kind of new-type cutter that existing cutting tool for boring defective has " making overall plans ", " sustainable use " theory that overcomes.Based on this theory, the innovation part that this cutting tool for boring is different from existing cutter is: (1) adopts 3/4 new circumference formula structure, both has been applicable to through hole processing simple in structure, also is applicable to the shoulder hole processing of complex structure, axial dimension precision; (2) can satisfy dimension compensation, replacing and check and correction size etc. behind the blade abrasion, cutter can continue to use.
The technical scheme that the utility model is taked for achieving the above object is: the adjustable indexable boring cutter in multistage multitool position of a kind of 3/4 circumference formula, comprise cutter hub, chip pocket and blade, it is characterized in that, described cutter hub is 3/4 circumference formula structure, and with the blade split, described chip pocket is the quarter turn straight channel type, on 3/4 circumference cutter hub, be provided with three cutter spacing at least, lay respectively at second and third, on the quadravalence platform, be respectively equipped with the cutter groove at second and third, on the quadravalence platform, blade is installed in respectively in the cutter groove.
The beneficial effect that the utility model produced is: the cutter member number is few, light weight, because designs simplification, the centrifugal force of generation is little, but high-speed cutting, (speed＞100m/min), can ensure the boring precision of cutter effectively; Non-monolithic structure can be adjusted blade, replace or change blade, can prolong the service life of cutter and blade, reduces the machining cost, therefore, has certain practicality.
Description of drawings
Fig. 1 is the utility model vertical view;
Fig. 2 is the utility model stereogram I and as Figure of abstract;
Fig. 3 is the utility model stereogram II;
Fig. 4 adjusts the screw stereogram.
The specific embodiment
Further describe the utility model below in conjunction with drawings and Examples.
Embodiment one: with reference to Fig. 1,2, on 3/4 circumference cutter hub 2, be provided with three cutter spacing at least, lay respectively at second and third, on the quadravalence platform (pressing among the figure stage order from left to right), be respectively equipped with cutter groove 22,23,24 at second and third, on the quadravalence platform, blade 7 is installed in 22,23,24 li of cutter grooves respectively.
Embodiment two: with reference to Fig. 1,2, on the structure of above embodiment one, also be provided with a cutter spacing on the 3/4 circumference cutter hub 2, be positioned on first stage, be provided with cutter groove 21 on first stage, blade 7 is installed in 21 li of cutter grooves.
Embodiment three: with reference to Fig. 1,2,3, on the structure of above embodiment two, also be provided with a chamfering cutter spacing on the 3/4 circumference cutter hub 2, be positioned on the stage of the 3rd stage side, be provided with cutter groove 25 on this stage, blade 7 is installed in 25 li of cutter grooves.
Embodiment four: with reference to Fig. 1,2,3, on the structure of above embodiment three, also be provided with a chamfering cutter spacing on the 3/4 circumference cutter hub 2, be positioned on the stage of quadravalence platform side, be provided with cutter groove 26 on this stage, blade 7 is installed in 26 li of cutter grooves.
Above embodiment four is most preferred embodiments, on 3/4 circumference cutter hub 2, be provided with six cutter spacing (comprising two chamfering cutter spacing) altogether, lay respectively on the stage of first and second stage and three, four both sides, on each stage, be respectively equipped with the cutter groove, be respectively: the first stage cutter groove 21, the second stage cutter groove 22, the 3rd stage one side tool groove 23, quadravalence platform one side tool groove 24 and the 3rd stage opposite side rose reamer groove 25 and quadravalence platform opposite side rose reamer groove 26, blade 7 is installed in 21～26 li of cutter grooves respectively.
The center deflection locating surface 0.1-0.2mm of each cutter groove 21～26 and the intersection point place of deflection adjustment face 0.1-0.2mm are provided with screw hole, and blade 7 is fixed in the screw hole by trip bolt 8 respectively.
Be provided with screw hole in a side, be fixed with the adjustment screw 9 that is used to adjust blade 7 in the screw hole, referring to Fig. 1,2,3,4 near each cutter groove 21～26.
Mainly by Morse taper shank clamping cutter, taper shank is Mohs 5# to the utility model, does not need reducing sleeve, can directly link to each other with machine tool chief axis, and clamping precision height and clamping are firm.Adopt high-intensity 40Cr steel, a part is made " Morse taper shank " of clamping self-locking property cramping body as cutting tool for boring; The 3/4 circumference formula of making another part contains " cutter hub " of chip pocket working body as cutter.Make structure of the cutter body, blade clamping groove face and the relevant adjustment screw and the fastening screw of needs on the cutter hub according to the processing request of workpiece.
The cutter structure of 3/4 circumference formula is on the pole of a ruling size, at first make each stage circle according to Workpiece structure, leave 1/4 afterwards as chip pocket 3, chip pocket occupies 1/4 of cutter hub respectively and leaves 3/4 pole body, next on each stage circle, promptly shaft shoulder place produces blade installation slot (cutter groove).
Chip pocket 3 is the quarter turn straight channel type, and chip pocket 3 occupies 1/4 of cutter hub 2.The chip pocket of this form is in the boring process, be added with under the situation of cutting coolant, can discharging smear metal smooth and easy, easily, under the situation that does not add cooling fluid, can get rid of a part, hold remaining smear metal fully, this kind situation does not constitute influence to the machined surface of workpiece.
The locating surface 4 of blade is meant according to " structural requirement of workpiece ", for example requirement of aperture and relevant axial dimension thereof, the location datum level of " the blade cut position " that processes on cutter hub.Its dimensional requirement, roughness requirement, morpheme requirement or the like are strict.
The adjustment face of blade 5 is meant that blade is made microdisplacement along locating surface, locks the face of the support of blade afterwards again when carrying out dimension compensation behind check and correction cutting size or the blade abrasion.Adjustment face is formed jointly by adjusting screw 9 and longitudinal knife groove.4 one-tenth 80 ° of angles of this face and locating surface.Cutter groove face 6 is meant the groove face that bears the blade main cutting force, be after the insert retention with the groove face of cutter hub contact area maximum.This face and locating surface 4,5 one-tenth 97 ° of angles of adjustment face.
Carry out dimension compensation behind check and correction cutting size or the blade abrasion, finish by trip bolt 8, adjustment screw 9 respectively.Changing blade, is to finish by trip bolt 8.
The adjustment principle of blade cut position: shown in Fig. 1,2,3,4, adjustment is to adjust screw 9 with the awl back of the body formula of compact conformation to adjust.Awl back of the body formula adjust screw 9 be exactly screw be processed into one with the carbide tips relief angle conical surface that matches, can accomplish like this along with the rotation of adjusting screw 9, the cone of screw 9 is adjusted in rising or reduction, and then conical surface promotion blade moves the cutting position of adjustment blade.Its degree of regulation is higher, scale error≤0.01mm.This kind mode make each blade fastening, adjust comparatively rapid, convenient; Each blade carries out the processing in different apertures respectively successively, has realized multitool multiple-cutting-edge fine finishining truly.
As shown in Figure 3, the chamfering blade effect is that chamfering is 0.5 * 45 ° respectively with two holes after processing near two blades of taper shank.
The assembling of multistage the adjustable indexable boring cutter in multitool position of 3/4 circumference formula: with Morse taper shank 1 wiped clean of cutter, match with the Mohs hole of machine tool chief axis, pull bar screws in the screw tension cutter of cutter, just can finish the location and the clamping of this boring cutter.Screw out trip bolt 8, to adjust screw 9 and transfer to initial position, the blade 7 blade clamping groove (cutter groove) of packing into, fit tightly with blade locating surface 4, adjust face 5 sturdy being adjacent to blade, screw in trip bolt 8, each blade is according to said method installed successively, open lathe and can try processing workpiece.If size need be adjusted, unclamp trip bolt 8 earlier, screw 9 is adjusted in rotation again, can change the cutting position of blade, as shown in Figure 1, 2, 3.Adjusting screw 9 pitch t is 0.5 millimeter, adjusts screw threads and turns around, and is converted to awl back of the body promotion blade displacement to be:
δ=tan α * t=tan7 ° * 0.5=0.0614mm, wherein the awl half-angle of the awl back of the body is 7 °.
Claims (6)
1. the adjustable indexable boring cutter in multistage multitool position of a circumference formula, comprise cutter hub (2), chip pocket (3) and blade (7), it is characterized in that, described cutter hub (2) is 3/4 circumference formula structure, and with blade (7) split, described chip pocket (3) is the quarter turn straight channel type, on 3/4 circumference cutter hub (2), be provided with three cutter spacing at least, lay respectively at second and third, on the quadravalence platform, be respectively equipped with cutter groove (22), (23), (24) at second and third, on the quadravalence platform, blade (7) is installed in cutter groove (22), (23), (24) lining respectively.
2. the adjustable indexable boring cutter in multistage multitool position of 3/4 circumference formula according to claim 1, it is characterized in that, on 3/4 circumference cutter hub (2), also be provided with a cutter spacing, be positioned on first stage, be provided with cutter groove (21) on first stage, blade (7) is installed in cutter groove (21) lining.
3. the adjustable indexable boring cutter in multistage multitool position of 3/4 circumference formula according to claim 1, it is characterized in that, on 3/4 circumference cutter hub (2), also be provided with a chamfering cutter spacing, be positioned on the stage of the 3rd stage side, be provided with cutter groove (25) on this stage, blade (7) is installed in cutter groove (25) lining.
4. the adjustable indexable boring cutter in multistage multitool position of 3/4 circumference formula according to claim 1, it is characterized in that, on 3/4 circumference cutter hub (2), also be provided with a chamfering cutter spacing, be positioned on the stage of quadravalence platform side, be provided with cutter groove (26) on this stage, blade (7) is installed in cutter groove (26) lining.
5. according to claim 1,2, the adjustable indexable boring cutter in 3 or 4 multistage multitool positions of described 3/4 circumference formula, it is characterized in that, the center of described cutter groove (21～26) is respectively equipped with screw hole, and described blade (7) is fixed in the screw hole by trip bolt (8) respectively.
6. according to claim 1,2, the adjustable indexable boring cutter in 3 or 4 multistage multitool positions of described 3/4 circumference formula, it is characterized in that, be respectively equipped with screw hole in a side, be fixed with the adjustment screw (9) that is used to adjust described blade (7) in the screw hole near described cutter groove (21～26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920250163XU CN201537714U (en) | 2009-11-10 | 2009-11-10 | Three fourth circumferential type multistage multi-cutter spacing adjustable invertible boring cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920250163XU CN201537714U (en) | 2009-11-10 | 2009-11-10 | Three fourth circumferential type multistage multi-cutter spacing adjustable invertible boring cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201537714U true CN201537714U (en) | 2010-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920250163XU Expired - Fee Related CN201537714U (en) | 2009-11-10 | 2009-11-10 | Three fourth circumferential type multistage multi-cutter spacing adjustable invertible boring cutter |
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| CN (1) | CN201537714U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108436119A (en) * | 2018-05-02 | 2018-08-24 | 宁波丹德瑞精密机械科技有限公司 | A kind of boring cutter |
| CN108472740A (en) * | 2016-01-18 | 2018-08-31 | 山特维克知识产权股份有限公司 | The boring bar that can be activated by centrifugal force |
-
2009
- 2009-11-10 CN CN200920250163XU patent/CN201537714U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108472740A (en) * | 2016-01-18 | 2018-08-31 | 山特维克知识产权股份有限公司 | The boring bar that can be activated by centrifugal force |
| CN108436119A (en) * | 2018-05-02 | 2018-08-24 | 宁波丹德瑞精密机械科技有限公司 | A kind of boring cutter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100804 Termination date: 20121110 |