CN209363681U - Clip type annular cutting tool - Google Patents

Clip type annular cutting tool Download PDF

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Publication number
CN209363681U
CN209363681U CN201822121195.1U CN201822121195U CN209363681U CN 209363681 U CN209363681 U CN 209363681U CN 201822121195 U CN201822121195 U CN 201822121195U CN 209363681 U CN209363681 U CN 209363681U
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China
Prior art keywords
cutting
cutting edge
clip type
guide support
type annular
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CN201822121195.1U
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Chinese (zh)
Inventor
朱红梅
姚小锋
朱小峰
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Zhejiang Xinxing Tools Co.,Ltd.
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ZHEJIANG XINXING TOOL CO Ltd
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Abstract

The utility model relates to machine tool technical fields, specifically disclose a kind of clip type annular cutting tool, including shank and blade, guide support item is wherein equipped between adjacent two cutting edge of cutting portion, the outer surface of the guide support item is the arc surface coaxial with cutting portion, and the diameter of the guide support outer surface is less than the maximum gauge where the blade tip of the cutting edge.The clip type annular cutter of above structure, during cutting edge processes hole, when leading to the axis runout centre of gyration of cutting portion due to the radial component of cutting edge, the outer surface of guide support item will be contacted with the inner surface in processing hole, the radial component that cutting edge generates is given into middle conjunction, the deviation of cutting portion is corrected, so that radial shake when by Tool in Cutting controls within accuracy rating, the damage for avoiding hole machined equipment is readily applicable to process deeper looping pit.

Description

Clip type annular cutting tool
Technical field
The utility model relates to machine tool technical fields, and in particular to a kind of clip type annular cutting tool.
Background technique
Annular cutting tool in the prior art, such as blade removal formula Steel Plate Guide Drill disclosed in CN106180828A, Screw axial clamped-in style detachable blade Steel Plate Guide Drill etc. disclosed in CN203018803U, is to overcome cutting edge by the rigidity of equipment Cutting out-of-balance force.The defect of such structure is that precision and the hole surface for processing hole are second-rate, can make to process equipment It is most important at damage, shallower hole can only be processed, deep hole can not be carried out to stablize processing.
Summary of the invention
The utility model is that technical problems to be solved are to solve annular cutting tool in the prior art by equipment sheet The rigidity of body overcomes processing hole precision caused by cutting out-of-balance force and surface quality poor and can not process to deep hole Defect.
In order to solve the above-mentioned technical problem, a kind of the technical scheme that the utility model is provided is as follows: clip type annular cutting Cutter includes at least shank and blade, and the blade includes cutting portion and chip removal portion, and the end of the cutting portion is along the circumferential direction Equipped with several cutting edges, the same side of several cutting edges is equipped with dregs guiding groove, and the chip removal portion is equipped with and the dregs guiding groove The chip space for corresponding and being connected to, guide support item is equipped between adjacent two cutting edge of the cutting portion, and the guiding is propped up The outer surface of stay is the arc surface coaxial with cutting portion, and the diameter of the guide support outer surface is less than the cutting edge Maximum gauge where blade tip.
Where a kind of preferred embodiment, the diameter of the guide support outer surface and the blade tip of the cutting edge most Difference between major diameter is less than or equal to 0.4mm.
A kind of preferred embodiment, the width of the dregs guiding groove are less than the width of the chip space.
A kind of preferred embodiment, the range of the width B1 of the dregs guiding groove are 6~20mm.
A kind of preferred embodiment, the dregs guiding groove are continuous close to the side wall of cutting edge side and the side wall of chip space.
A kind of preferred embodiment is releasable connection between the cutting edge and cutting portion.
A kind of preferred embodiment, the cutting portion are equipped with the mounting groove for installing cutting edge.
A kind of preferred embodiment, the mounting groove has at least three positioning surfaces, for limiting radial direction, the axis of cutting edge To and circumferencial direction movement.
A kind of preferred embodiment is equipped with the inclination of self-cutting portion inner wall close to the position of cutting edge in the dregs guiding groove and extends To the dust lead groove of dregs guiding groove inner wall.
A kind of preferred embodiment, the cutting portion is equipped with the guide support slot for installing guide support item, described to lead Releasable connection or welding in guide support slot to support bar.
The clip type annular cutter of the present embodiment passes through the outer surface diameter of setting guide support item and guide support item Less than the structure type of diameter where the blade tip of cutting edge, during cutting edge processes hole, due to the radial direction point of cutting edge When power leads to the axis runout centre of gyration of cutting portion, the outer surface of guide support item will be contacted with the inner surface in processing hole, The radial component that cutting edge generates is given into middle conjunction, the deviation of cutting portion is corrected, thus radial direction when by Tool in Cutting Control is shaken within accuracy rating, avoids the damage of hole machined equipment, is readily applicable to process deeper looping pit.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the present embodiment clip type annular cutting tool;
Fig. 2 is the top view of the present embodiment clip type annular cutting tool;
Fig. 3 is the partial enlargement diagram in the portion A shown in Fig. 2;
Fig. 4 is the partial structural diagram of the present embodiment clip type annular cutting tool.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain The utility model is not used to limit the utility model.
In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "inner", "outside" etc. The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model It is described with simplifying, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation structure It makes and operates, therefore should not be understood as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, are integrally connected, are also possible to detachably connect It connects;It can be the connection inside two elements;It can be directly connected, it can also indirectly connected through an intermediary, for this For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
As shown in Figure 1, a kind of clip type annular cutting tool of the present embodiment, including shank 1 and blade, wherein shank 1 It is the universal standard for tool shank used in general machining.Wherein, blade includes cutting portion 2 and chip removal portion 3.It needs Illustrate, in the present embodiment, the length in chip removal portion 3 is longer compared with the length in chip removal portion in the prior art, with deeper for processing Hole.
In the present embodiment, as shown in Figure 2, Figure 4 shows, the end of cutting portion 2 has along the circumferential direction been uniformly arranged 4 cutting edges 4,4 cutting edges 4 and cutting portion 2 are releasable connection, are fixedly connected by screw, in order to replace cutting edge.Cutting edge can Select the cutter, such as high speed steel material, hard alloy material etc. of unlike material.Multiple cutting edges can also be combined into different Combination, such as flat combination, side set combination etc..
In the present embodiment, cutting portion 2 is equipped with the mounting groove 10 for installing cutting edge, and there are three the mounting groove 10 tools Positioning surface, for limit cutting edge radially, axially and the movement of circumferencial direction.So during replacing cutting edge, It can be achieved to repeat quickly positioning.Cutting edge is that removable changeable type only needs to change cutting edge i.e. after cutting edge wear-out failure Can, the consuming cost of client is reduced, meanwhile, replacement cutting edge can make the shape of cutter and precision more guaranteed, produce Middle performance is more stable.
It should be noted that be uniformly arranged 4 cutting edges in the present embodiment, on cutting portion, the wherein quantity of cutting edge It may not be 4, multiple cutting edges may be non-uniform Distribution in a circumferential direction.As for cutting edge particular number with And whether be evenly arranged, to actual production need it is related.
As the maximum improvement of the present embodiment, wherein being equipped with a guide support item 7 between adjacent two cutting edge 4, this is led It is the arc surface coaxial with cutting portion 2 to the outer surface of support bar 7.Wherein, as shown in figure 3,7 outer surface of guide support item it is straight Diameter is less than the maximum gauge where the blade tip of the cutting edge 4.Wherein, the diameter of guide support outer surface and the cutting edge Blade tip 9 where maximum gauge between difference be less than or equal to 0.4mm.Preferably, in the present embodiment, as shown in figure 3, leading It is 0.15mm to the difference R0 between the radius marking line 12 where the blade tip of radius and cutting edge where support bar outer surface.
Since annular cutting tool (Steel Plate Guide Drill) in the prior art is that the rigidity of equipment itself is leaned on to overcome cutting edge not Equilibrant force, when processing shallower hole, equipment is rigidly also enough to ensure that the processing quality in hole.But if the hole of processing is deeper The case where, the rigidity of equipment is not enough to offset the radial imbalance force of cutting edge generation, not only results in equipment damage, and hole adds Working medium amount not can guarantee yet.Based on the above-mentioned problems of the prior art, guide support item and guiding branch is arranged in the present embodiment The purpose of diameter is where the outer surface diameter of stay is less than the blade tip of cutting edge, during cutting edge processes hole, by When the radial component of cutting edge leads to the axis runout centre of gyration of cutting portion, the outer surface of guide support item will be with processing The inner surface in hole contacts, and the radial component that cutting edge generates is given middle conjunction, is corrected to the deviation of cutting portion, thus by knife Radial shake when tool cutting controls within accuracy rating, avoids the damage of hole machined equipment, is readily applicable to process Deeper looping pit.
In the present embodiment, as shown in figure 4, cutting portion 2 is equipped with the guide support slot 77 for installing guide support item 7, Wherein the guide support item 7 can be for the releasable connection fixed by screw in guide support slot 11, or weldering Connect fixation.
In the present embodiment, as shown in Figure 1, Figure 2, Figure 4 shows, it is equipped with dregs guiding groove 6 in the side of the cutting edge 4, and in chip removal Portion 3 is equipped with the chip space 5 for corresponding and being connected to the dregs guiding groove 6.Wherein, in a circumferential direction, all dregs guiding grooves It is respectively positioned on the same side of cutting edge.The extending direction of dregs guiding groove is substantially consistent with the axis of cutter, and chip space is then in chip removal portion Extend in the shape of a spiral on outer surface.
As the improvement of the present embodiment, wherein the width B1 of dregs guiding groove 6 is less than the width B2 of the chip space 5.So set The purpose set is, when processing deeper looping pit, iron filings are when far from cutting edge, the phenomenon that generating expansion, such as Tab phenolphthaleinum Consider the of same size of slot and chip space to be worth doing, in the case where the hole relatively depth of processing, iron filings are not easy chip breaking at dregs guiding groove, can be in chip removal Slot is stuck.In the case where having change width between the dregs guiding groove of setup cost embodiment and the width of chip space, when iron filings are longer When, due to the variation of groove width, iron filings more easy fracture at dregs guiding groove prevents iron filings stuck in chip space.
Based on the variation of above-mentioned groove width, preferably, side wall and chip space of the dregs guiding groove close to cutting edge side Side wall is continuous, and side wall of the dregs guiding groove far from cutting edge side then between the side wall side wall of chip space there is apparent width to become To change, forms step, the purpose of such setting is, when iron filings enter chip space by dregs guiding groove, without what resistance, but iron pin When being expanded in chip space, the circumferencial direction even inflation crimped really, then in the junction shape of dregs guiding groove and chip space At a torsion, so that iron filings more frangibility when longer.
A kind of preferred embodiment, as shown in figure 4, wherein the position of interior close cutting edge is equipped with self-cutting in dregs guiding groove 6 Portion's inner wall tilts the dust lead groove 8 for extending to dregs guiding groove inner wall, to guide iron pin to enter dregs guiding groove.
In short, the above is only the preferred embodiment of the utility model only, it is not intended to limit the utility model, it is all Any modifications, equivalent replacements, and improvements made within spirit of the present utility model and principle etc. should be included in practical Within novel protection scope.

Claims (10)

1. a kind of clip type annular cutting tool includes at least shank and blade, the blade includes cutting portion and chip removal portion, institute The end for stating cutting portion is along the circumferential direction equipped with several cutting edges, and the same side of several cutting edges is equipped with dregs guiding groove, described Chip removal portion is equipped with the chip space for corresponding and being connected to the dregs guiding groove, which is characterized in that adjacent the two of the cutting portion Guide support item is equipped between cutting edge, the outer surface of the guide support item is the arc surface coaxial with cutting portion, described to lead The maximum gauge being less than where the blade tip of the cutting edge to the diameter of support bar outer surface.
2. clip type annular cutting tool described in accordance with the claim 1, which is characterized in that the guide support outer surface The difference between maximum gauge where the blade tip of diameter and the cutting edge is less than or equal to 0.4mm.
3. clip type annular cutting tool described in accordance with the claim 1, which is characterized in that the width of the dregs guiding groove is less than institute State the width of chip space.
4. clip type annular cutting tool described in accordance with the claim 3, which is characterized in that the model of the width B1 of the dregs guiding groove It encloses for 6~20mm.
5. according to clip type annular cutting tool described in claim 3 or 4, which is characterized in that the dregs guiding groove is close to cutting The side wall of sword side and the side wall of chip space are continuous.
6. according to the described in any item clip type annular cutting tools of claim 1-4, which is characterized in that the cutting edge with cut It cuts between portion as releasable connection.
7. clip type annular cutting tool according to claim 6, which is characterized in that the cutting portion is equipped with for installing The mounting groove of cutting edge.
8. clip type annular cutting tool according to claim 7, which is characterized in that the mounting groove has at least three Positioning surface, for limit cutting edge radially, axially and the movement of circumferencial direction.
9. according to the described in any item clip type annular cutting tools of claim 1-4 or 7 or 8, which is characterized in that the dust lead The dust lead groove that inner wall inclination in self-cutting portion extends to dregs guiding groove inner wall is equipped with close to the position of cutting edge in slot.
10. according to the described in any item clip type annular cutting tools of claim 1-4 or 7 or 8, which is characterized in that described to cut Cut portion and be equipped with guide support slot for installing guide support item, the guide support item in guide support slot releasable connection or Welding.
CN201822121195.1U 2018-12-18 2018-12-18 Clip type annular cutting tool Active CN209363681U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201822121195.1U CN209363681U (en) 2018-12-18 2018-12-18 Clip type annular cutting tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201822121195.1U CN209363681U (en) 2018-12-18 2018-12-18 Clip type annular cutting tool

Publications (1)

Publication Number Publication Date
CN209363681U true CN209363681U (en) 2019-09-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110449639A (en) * 2018-12-18 2019-11-15 浙江欣兴工具有限公司 A kind of clip type annular cutting tool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110449639A (en) * 2018-12-18 2019-11-15 浙江欣兴工具有限公司 A kind of clip type annular cutting tool
CN110449639B (en) * 2018-12-18 2024-11-01 浙江欣兴工具股份有限公司 Machine presss from both sides formula annular cutting tool

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Address after: 314301 No. 699, Yanshan Road, liuliji Town, Shupu Town, Haiyan County, Jiaxing City, Zhejiang Province

Patentee after: Zhejiang Xinxing Tools Co.,Ltd.

Address before: No. 33, Huanbei Road, liuliji Town, Shupu Town, Haiyan County, Jiaxing City, Zhejiang Province

Patentee before: ZHEJIANG XINXING TOOLS Co.,Ltd.

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