CN105750599A - Integral compound tool for machining walls and bottoms of stepped holes - Google Patents
Integral compound tool for machining walls and bottoms of stepped holes Download PDFInfo
- Publication number
- CN105750599A CN105750599A CN201610199561.8A CN201610199561A CN105750599A CN 105750599 A CN105750599 A CN 105750599A CN 201610199561 A CN201610199561 A CN 201610199561A CN 105750599 A CN105750599 A CN 105750599A
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- hole
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- center
- pair
- compound tool
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 23
- 238000003754 machining Methods 0.000 title abstract description 11
- 238000005520 cutting process Methods 0.000 claims abstract description 42
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 230000000875 corresponding Effects 0.000 claims abstract description 8
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 230000004323 axial length Effects 0.000 abstract description 2
- 239000000110 cooling liquid Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009499 grossing Methods 0.000 description 3
- 239000002173 cutting fluid Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 210000001699 lower leg Anatomy 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/009—Stepped drills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/06—Drills with lubricating or cooling equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/08—Drills combined with tool parts or tools for performing additional working
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/04—Angles, e.g. cutting angles
Abstract
The invention relates to an integral compound tool for machining the walls and bottoms of stepped holes. The integral compound tool comprises a tool body, end teeth, various stages of chamfer step edges, various stages of lateral edges, various stages of support guide bars, a cooling liquid channel and the like. An end-tooth cutting edge comprises an end tooth passing the center and an end tooth not passing the center. The maximum cutting diameters of the various stages of chamfer step edges are equal to the diameters of the corresponding sections of machined holes. The axial lengths of the various stages support guide bars are smaller than the lengths of the corresponding lateral edges, and the radial diameters of the support guide bars are respectively smaller than the diameters of the lateral edges. The integral compound tool has the advantages that an internal cooling manner is used for cutting and mainly aims at materials with low hardness and cutting force; the tool is simple in structure, high in rigidity, capable of precisely machining the stepped blind holes through one-step clamping, high in machining precision, high in production efficiency, and the like.
Description
Technical field
The present invention relates to machining tool technical field, the compound tool at the bottom of especially a kind of monoblock type processing step blind hole hole wall and hole.
Background technology
The method of the most general existing processing step hole is that hole processed successively by the drill bit that adopts many diameters different, reamer, reamer, obtain stairstepping, the stepped hole that cannot disposable have obtained, it is necessary to frequently tool changing, not only working (machining) efficiency is low but also that process axiality and dimensional accuracy not easily ensure.Also there is large number of orifices processing compound tool currently on the market, it mostly is indexable carbide tool or welding type cutter, design and the manufacture process of these cutters are loaded down with trivial details, and blade installation accuracy has significantly high requirement, and the trace that blade is on cutter hub moves the machining accuracy that can affect cutter and increases the vibration of cutter.And for welding and clip type compound drilling tool, during high speed rotating, there is potential safety hazard all the time, integral cutter is safer under High-speed machining.And existing compound drilling tool mostly is handle of a knife and cutter hub integrative-structure, in the course of processing, cutter hub damages then whole handle of a knife cutter hub and scraps together, causes certain waste.For the processing of blind hole, chip removal difficulty easily scratches workpiece, and at the bottom of hole, planarization is difficult to ensure that.
Summary of the invention
For the deficiencies in the prior art, the present invention provides the compound tool at the bottom of a kind of monoblock type processing step blind hole hole wall and hole, purpose is in that: can a cutter clamping when making polish step blind hole, processing required hole wall and hole bottom structure, this cutter also has the advantage that processing method is simple, with short production cycle, be prone to customization.
For reaching above-mentioned purpose, the invention provides techniques below scheme:
A kind of compound tool at the bottom of monoblock type processing step blind hole hole wall and hole, including cutter hub, cross the end tooth cutting edge at center, the but end tooth cutting edge at center, top-down a pair one level of support sliver, a pair two grades of support slivers and a pair three grades of support slivers, top-down a pair one-level side edge, a pair two grades of chamfering step swords, a pair two grades of side edges, a pair three grades of chamfering step swords, a pair three grades of side edges, cooling duct, chip area, described compound tool is monoblock type, directly shapes on hard alloy bar.Cutting edge and conductor portion carefully grind, and obtain the surface of unusual light.
Cutter axle center crossed by the described end tooth cutting edge crossing center, and length exceedes center one segment distance, and submarginal part has been used for the chipping allowance of polish hole wall, has been used for a small amount of surplus at the bottom of polish hole when by paracentral part.The extended line of the end tooth cutting edge at described only center crosses cutter axle center, but length is from center one segment distance, and this distance exceedes the distance at center more than the end tooth cutting edge at the center of mistake.
Described end tooth cutting edge and every grade of chamfering step angle of cutting edge are 0 °, and its maximum gauge is corresponding processing step bore dia.By slotting at side edge root, make two grades of chamfering step swords and the three grades of chamfering step sword length thickness more than actual cut surplus.
Described every pair of one-level side edge, two grades of side edges, three grades of side edges are symmetrical in cutter hub axis, and are parallel to cutter hub axis, and every pair of side edge spacing is respectively equal to each section of stepped hole diameter of processing.
Described two grades of chamfering step swords, three grades of chamfering step swords are symmetrical in cutter hub axis.
Described every pair of one level of support sliver, two grades of support slivers, three grades of support slivers are symmetrical in cutter hub axis, and it is parallel to cutter hub axis, every pair supports sliver spacing and is respectively smaller than each section of processing step hole bore dia about 5 microns, its radius of corner is 1/2nd of the radius in machined hole, the support slivers at different levels distance that radially distance from the front end is from the front end more than corresponding chamfering step swords at different levels.
Described cooling duct has two, and direction is parallel with cutter hub axis, and outlet is respectively after the end tooth cutting edge crossing center end tooth cutting edge and only center.Reflux at the bottom of high-pressure cutting fluid directive hole during processing blind hole, flow to chip area (11) respectively and another is to the non-chip area back side, for the chip cut away is gone out in time in hole, and between sliver and finished surface, form pressure film, supporting cutter makes it ensure centering, and finished hole surface can produce corresponding residual compressive stress.
The cross sectional shape of cutter side blade portion is " hourglass " shape, and the non-chip removal groove face of both sides is plane and is parallel to each other.
Compared with prior art, the invention have the advantage that
Compound tool at the bottom of proposed monoblock type processing step blind hole hole wall and hole, it is not necessary to tool changing gets final product the disposable polish completing step blind hole, machining accuracy is high, and production efficiency is high.Cutter is monoblock type, simple in construction, good rigidly, it is possible to once grind on cutter and tool grinding machine, more carefully grinds, and can change each section of cutting diameter and length according to required flexible shapes, and tool sharpening process variations is less.
Accompanying drawing explanation
Fig. 1 is the cutter structure schematic diagram of the present invention.
Fig. 2 is the cutter front view of the present invention.
Fig. 3 is the cutter side view of the present invention.
Fig. 4 is the cutter top view of the present invention.
Fig. 5 is the blades of cutting tools cross section view of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, specific embodiments of the invention are described further.
As shown in Figure 1, a kind of compound tool at the bottom of monoblock type processing step blind hole hole wall and hole, including cutter hub 13, cross the end tooth cutting edge 1 at center, the but end tooth cutting edge 2 at center, top-down a pair one level of support sliver 4, a pair two grades of support slivers 7 and a pair three grades of support slivers 9, top-down a pair one-level side edge 3, a pair two grades of chamfering step swords 5, a pair two grades of side edges 6, a pair three grades of chamfering step swords 8, a pair three grades of side edges 10, cooling duct 12, chip area 11, described compound tool is monoblock type, directly shapes on hard alloy bar.
As in figure 2 it is shown, cutter axle center crossed by the described end tooth cutting edge 1 crossing center, and length exceedes center one segment distance；The extended line of the end tooth cutting edge 2 at described only center crosses cutter axle center, but length is from center one segment distance, and this distance exceedes the distance at center more than the end tooth cutting edge 1 at the center of mistake, for the molding of the first rank stepped hole during cutting.The mid portion of the end tooth cutting edge 1 crossing center can be processed at the bottom of hole when polish, completes the cutting of surplus in a small amount, is typically smaller than 1mm, and effect is similar to the effect of slotting cutter end-cutting edge.
Described every pair of one-level side edge 6, three grades of side edges 10 of 3, two grades of side edges are symmetrical in cutter hub 13 axis, and are parallel to cutter hub 13 axis, and every pair of side edge spacing is respectively equal to each section of stepped hole diameter of processing.Described 5, three grades of chamfering step swords 8 of two grades of chamfering step swords are symmetrical in cutter hub 13 axis.
One-level side edge 3 is for single order stepped hole smoothing and finished machined.Have cutter groove at afterbody, make the length of two grades of chamfering step swords 5 extend, it is ensured that all surpluses can be cut, form second stepped hole side.Two grades of side edges 6 are used for the smoothing to second order stepped hole and finished machined, have cutter groove at afterbody, make the length of three grades of chamfering step swords 8 extend, it is ensured that can cut all surpluses, form the 3rd stepped hole side.Three grades of side edges 10 are used for side smoothing and the finished machined of the 3rd stepped hole, and its length is more than actually required length, length compensation during for cutter grinding.
Cross the end tooth cutting edge 1 at center, the but end tooth cutting edge 2 at center, one-level side edge 3, two grades of chamfering step swords 5, two grades of side edges 6, three grades of chamfering step swords 8, the length of three grades of side edges 10 is processed bore dia according to reality and is arranged, and anterior angle is 0 °, the end tooth cutting edge 1 at center, but the relief angle of the end tooth cutting edge 2 at center is 7 °, two stage steps chamfering blades 5, the relief angle of three grades of chamfering step swords 8 is convex eccentric arc relief angle, and knife edge relief angle is 0 °, average 7 ° of eccentric arc relief angle, eccentric arc diameter is equal with machined aperture.
As shown in Figure 3, described every pair of one level of support sliver 4, two grades supports sliver 7, three grades support sliver 9 and is symmetrical in cutter hub 13 axis, and it is parallel to cutter hub 13 axis, every pair supports sliver spacing and is respectively smaller than each section of processing step hole bore dia 5 microns, its radius of corner is 1/2nd of the radius in machined hole, the support slivers at different levels distance that radially distance from the front end is from the front end more than corresponding chamfering step swords at different levels.
The axial length of support slivers at different levels is less than the length of corresponding side edge, and if one level of support sliver 4 length is less than one-level side edge 3, the end reconditioning supporting sliver is arc transition, it is to avoid sliver produces surplus.When cutting, stepped hole surfaces at different levels are extruded, form compressive stress at hole surface, improve fatigue strength and the serviceability in hole.
As shown in Figure 4, the top view of described cutter, the cross sectional shape of described every grade of step of cutter is identical, is only on different processing circles, and cooling duct 12 is positioned on end tooth second flank.Cold machining liquid in high pressure is inputted during Tool in Cutting.It is illustrated in figure 5 the cutting tip sectional view of cutter, cutting fluid flows out from cooling duct 12, blind hole is formed backflow, a part flows to 11 chips of chip area and goes out outside hole, and cutting edge place is cooled down and chip is gone out, and another part flows to non-chip removal groove face 14, pressure film is formed between support slivers at different levels and finished surface, working angles supports cutter, plays good centering effect, improve the machining accuracy in hole.
Described cutter body portion is general staight shank type, and in available general band, cold numerical control knife spindle clamp is held.
Described Tool in Cutting sword front and back and support the arc surface of sliver and carefully grind, machined material is hardness and the less material of resistance to cutting, such as aluminium alloy, allowance for finish about 1mm.
Claims (7)
1. the compound tool at the bottom of a monoblock type processing step blind hole hole wall and hole, it is characterized in that: include cutter hub (13), cross the end tooth cutting edge (1) at center, the but end tooth cutting edge (2) at center, top-down a pair one level of support sliver (4), a pair two grades of supports sliver (7) and a pair three grades of supports sliver (9), top-down a pair one-level side edge (3), a pair two grades of chamferings step sword (5), a pair two grades of side edges (6), a pair three grades of chamferings step sword (8), a pair three grades of side edges (10), cooling duct (12), chip area (11), described compound tool is monoblock type, directly shape on hard alloy bar.
2. the compound tool at the bottom of monoblock type processing step blind hole hole wall as claimed in claim 1 and hole, it is characterised in that: cutter axle center crossed by the described end tooth cutting edge (1) crossing center, and length exceedes center one segment distance；The extended line of the end tooth cutting edge (2) at described only center crosses cutter axle center, but length is from center one segment distance, and this distance exceedes the distance at center more than the end tooth cutting edge (1) at the center of mistake.
3. the compound tool at the bottom of monoblock type processing step blind hole hole wall as claimed in claim 1 and hole, it is characterized in that: described every pair of one-level side edge (3), two grades of side edges (6), three grades of side edges (10) are symmetrical in cutter hub (13) axis, and it being parallel to cutter hub (13) axis, every pair of side edge spacing is respectively equal to each section of stepped hole diameter of processing.
4. the compound tool at the bottom of monoblock type processing step blind hole hole wall as claimed in claim 1 and hole, it is characterised in that: described two grades of chamferings step sword (5), three grades of chamferings step sword (8) are symmetrical in cutter hub (13) axis.
5. the compound tool at the bottom of monoblock type processing step blind hole hole wall as claimed in claim 1 and hole, it is characterized in that: described every pair of one level of support sliver (4), two grades of supports sliver (7), three grades of supports sliver (9) are symmetrical in cutter hub (13) axis, and it is parallel to cutter hub (13) axis, every pair supports sliver spacing and is respectively smaller than each section of processing step hole bore dia 5 microns, its radius of corner is 1/2nd of the radius in machined hole, the support slivers at different levels distance that radially distance from the front end is from the front end more than corresponding chamfering step swords at different levels.
6. the compound tool at the bottom of monoblock type processing step blind hole hole wall as claimed in claim 1 and hole, it is characterized in that: described cooling duct (12) have two, direction is parallel with cutter hub (13) axis, and outlet is respectively after the end tooth cutting edge (2) crossing center end tooth cutting edge (1) and only center.
7. the compound tool at the bottom of monoblock type processing step blind hole hole wall as claimed in claim 1 and hole, it is characterised in that: the cross sectional shape of cutter side blade portion is " hourglass " shape, and the non-chip removal groove face (14) of both sides for plane and is parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610199561.8A CN105750599B (en) | 2016-04-04 | 2016-04-04 | A kind of compound tool of monoblock type processing step hole hole wall and bottom hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610199561.8A CN105750599B (en) | 2016-04-04 | 2016-04-04 | A kind of compound tool of monoblock type processing step hole hole wall and bottom hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105750599A true CN105750599A (en) | 2016-07-13 |
| CN105750599B CN105750599B (en) | 2018-10-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610199561.8A Active CN105750599B (en) | 2016-04-04 | 2016-04-04 | A kind of compound tool of monoblock type processing step hole hole wall and bottom hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105750599B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107398599A (en) * | 2017-09-19 | 2017-11-28 | 苏州思麦科精密切削工具有限公司 | A kind of superfinishing reamer |
| CN108262610A (en) * | 2016-12-31 | 2018-07-10 | 石家庄大成冀台机械有限公司 | A kind of meter housing process equipment |
| CN111515693A (en) * | 2020-05-13 | 2020-08-11 | 重庆诚缘机械有限公司 | Numerical control machining center based on gang tool and shock absorber joint of processing thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110981647A (en) * | 2019-12-18 | 2020-04-10 | 江南工业集团有限公司 | Shaping method and cutter for vacuum casting gunpowder product |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56107814A (en) * | 1980-01-29 | 1981-08-27 | G N Tool Kk | Straight drill |
| CN201537706U (en) * | 2009-09-10 | 2010-08-04 | 威海威硬工具股份有限公司 | Diamond compound milling reamer for machining ladder hole |
| CN201833037U (en) * | 2010-09-15 | 2011-05-18 | 林先娥 | Drilling and milling knife with helical edge |
| CN102448646A (en) * | 2009-03-30 | 2012-05-09 | 钴领无限公司 | Rotationally driven multi-bevel step tool |
| CN202506879U (en) * | 2012-01-04 | 2012-10-31 | 厦门鹭鑫达金属制品有限公司 | One-step molding drill tool |
| CN102837035A (en) * | 2011-06-21 | 2012-12-26 | 无锡雨田精密工具有限公司 | Step forming flat drill |
| CN102837034A (en) * | 2011-06-21 | 2012-12-26 | 无锡雨田精密工具有限公司 | Tungsten steel flat drill |
| CN203679363U (en) * | 2013-11-28 | 2014-07-02 | 天津市景元机电有限公司 | Forming knife for processing step holes |
-
2016
- 2016-04-04 CN CN201610199561.8A patent/CN105750599B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56107814A (en) * | 1980-01-29 | 1981-08-27 | G N Tool Kk | Straight drill |
| CN102448646A (en) * | 2009-03-30 | 2012-05-09 | 钴领无限公司 | Rotationally driven multi-bevel step tool |
| CN201537706U (en) * | 2009-09-10 | 2010-08-04 | 威海威硬工具股份有限公司 | Diamond compound milling reamer for machining ladder hole |
| CN201833037U (en) * | 2010-09-15 | 2011-05-18 | 林先娥 | Drilling and milling knife with helical edge |
| CN102837035A (en) * | 2011-06-21 | 2012-12-26 | 无锡雨田精密工具有限公司 | Step forming flat drill |
| CN102837034A (en) * | 2011-06-21 | 2012-12-26 | 无锡雨田精密工具有限公司 | Tungsten steel flat drill |
| CN202506879U (en) * | 2012-01-04 | 2012-10-31 | 厦门鹭鑫达金属制品有限公司 | One-step molding drill tool |
| CN203679363U (en) * | 2013-11-28 | 2014-07-02 | 天津市景元机电有限公司 | Forming knife for processing step holes |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108262610A (en) * | 2016-12-31 | 2018-07-10 | 石家庄大成冀台机械有限公司 | A kind of meter housing process equipment |
| CN107398599A (en) * | 2017-09-19 | 2017-11-28 | 苏州思麦科精密切削工具有限公司 | A kind of superfinishing reamer |
| CN111515693A (en) * | 2020-05-13 | 2020-08-11 | 重庆诚缘机械有限公司 | Numerical control machining center based on gang tool and shock absorber joint of processing thereof |
| CN111515693B (en) * | 2020-05-13 | 2021-11-19 | 重庆诚缘机械有限公司 | Numerical control machining center based on gang tool and shock absorber joint of processing thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105750599B (en) | 2018-10-23 |
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