CN102179559B - Spiral hole milling device for lathe and method thereof - Google Patents
Spiral hole milling device for lathe and method thereof Download PDFInfo
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- CN102179559B CN102179559B CN2011100756180A CN201110075618A CN102179559B CN 102179559 B CN102179559 B CN 102179559B CN 2011100756180 A CN2011100756180 A CN 2011100756180A CN 201110075618 A CN201110075618 A CN 201110075618A CN 102179559 B CN102179559 B CN 102179559B
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- cutter
- lathe
- milling device
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- rotation axis
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Abstract
The invention discloses a spiral hole milling device for a lathe and a method thereof; the spiral hole milling device for a lathe comprises a cutting tool (0), a cutting tool autogiration mechanism connected with the cutting tool (0), and a height adjusting device capable of adjusting the autogiration axis of the cutting tool (0) and the main axis of the lathe (4) to be located at the same height along the direction X axis; and the cutting tool autogiration mechanism is connected with the height adjusting device through a fixing bracket (3). The spiral hole milling device for a lathe is simple in structure, easy to manufacture, convenient to mount and low in manufacturing cost, and is capable of well widening the hole making capability of the traditional horizontal lathe; the spiral hole milling method is different from the traditional drilling; the cutting force is largely decreased; the service life of the cutting tool (0) is also greatly prolonged; besides, the device is convenient to radiate and good in machining precision, and is capable of being applied to the high-precision hole machining of hard machining materials such as titanium alloy, carbon fiber composite reinforcing material and mould steel.
Description
Technical field
A kind of milling device and the method thereof that the present invention relates to, what be specifically related to is a kind of helical milling device for lathe and method thereof, belongs to the Machining Technology for Cutting field.
Background technology
The tradition lathe adopts drill bit, boring cutter, reamer, can complete a series of processing such as boring, bore hole, reaming, fraising.But, because the process of boring, reaming, fraising all belongs to semi-enclosed continuous cutting, a large amount of cutting heat energy that should not get rid of cause rapidly that cutter is overheated and produce annealing and lost efficacy, often occur stopping and carries out tool sharpening; Banded drilling cuttings makes boring procedure that the withdrawing link need be set simultaneously; For the different pore size of workpiece, the much knives tool need be provided, but also want frequent tool changing.These will directly affect the drilling efficiency of traditional lathe.
The machining accuracy aspect, utilize the boring that lathe tailstock carries out usually to be applicable to the roughing stage, and its borehole accuracy is generally IT13～IT11, and roughness can reach Ra50～12.5.For some high-precision endoporus, must be by prefabricated bottom outlet---reaming---bore hole/multiple tracks clustered operations such as fraising.And the precision in hole and quality be that geometry and tolerance by cutter directly determines, often because tool category is various, misapply cutter in daily production and cause that workpiece scraps situation.Especially for the carbon fibre reinforced composite material, because the axial force of traditional drilling is very large, tear, the mortality defect such as splitting, fluffing, layering happens occasionally.
Summary of the invention
For the deficiency existed on prior art, the present invention seeks to be to provide that a kind of cutter changing frequency is few, wear rate is low, can improve helical milling device and the method thereof of drilling efficiency, and the hole face quality made is good.
To achieve these goals, the present invention realizes by the following technical solutions:
Helical milling device for lathe of the present invention, the cutter free-wheeling system that comprise cutter, with cutter, is connected and can regulate cutter rotation axis and arrangement for adjusting height that the lathe main axis is contour along X-direction, the cutter free-wheeling system is connected with arrangement for adjusting height by fixed support.The present invention is simple in structure, be easy to manufacture, be convenient to install low cost of manufacture.
Above-mentioned cutter free-wheeling system comprises the drive unit that is arranged on the fixed support upper end and, for the cutter holding mechanism of connecting drive device and cutter, drive unit comprises output shaft and can control the motion controller of output shaft rotating speed.
Above-mentioned cutter holding mechanism comprises clamp body, be arranged on the collet in clamp body one end and be arranged on clamp body the check nut for the fixing spring chuck; One end of cutter runs through check nut and is arranged in collet, and output shaft is arranged in the other end of clamp body; Described cutter, output shaft and clamp body are coaxially installed.
Above-mentioned arrangement for adjusting height comprises the movable cushion block that is connected with the fixed support bottom, is arranged on the fixedly cushion block of movable cushion block below and heightens parts; Heighten parts and comprise that being arranged on fixedly a plurality of height of cushion block one side regulates double-screw bolt and the driving gear shaft and a plurality of passive tooth wheel shaft that are arranged on opposite side, the driven gear that is respectively equipped with driving gear on driving gear shaft and passive tooth wheel shaft and all is meshed with driving gear; The other end of highly regulating double-screw bolt and driving gear shaft is respectively equipped with the first inner hexagonal hole and the second inner hexagonal hole of highly regulating double-screw bolt and driving gear shaft rotation for driving, and the other end of passive tooth wheel shaft is connected with movable cushion block.
Be respectively equipped with first adjustment hole corresponding with the first inner hexagonal hole and the second inner hexagonal hole and the second adjustment hole on above-mentioned movable cushion block and fixed support.
Above-mentioned drive unit is air motor or electric main shaft.
Method for helically milling hole of the present invention comprises following step:
(A) helical milling device is arranged on to the knife rest interface position of lathe cross slide, and, by the lathe cross slide, makes the skew of the relative lathe main axis of cutter rotation axis without X-direction, complete initialization;
(B), after having initialized, according to the diameter D that treats drilling and the diameter d of cutter, determine the offset Δ X of the relative lathe main axis of cutter rotation axis along X-direction:
When cutter rotation axis and lathe main axis when contour along X-direction, offset Δ X=(D-d)/2;
When cutter rotation axis and lathe main axis when not contour along X-direction, at first by arrangement for adjusting height make cutter rotation axis and the lathe main axis contour along X-direction, in like manner can draw offset Δ X=(D-d)/2;
(C) according to determined offset Δ X, by the lathe cross slide, cutter rotation axis is moved to Δ X relative to the lathe main axis along X-direction, helical milling device is adjusted to required drilling state;
(D) after step (C) completes, the workpiece that makes to be arranged on lathe chuck together rotates in company with lathe spindle, the rotation of cutter free-wheeling system band cutter, cutter is realized axial feed under the drive of the vertical planker of lathe simultaneously, the rotation of workpiece realizes the revolution feeding of cutter, and cutter finally completes helical milling with the screwfeed of combination;
(E), after step (D) completes, judge whether to need to continue hole milling:
When not needing to continue hole milling, go to step G;
When needs continue hole milling, go to step F;
(F) judge whether next aperture changes:
When aperture does not change, go to step D;
When aperture changes, go to step B;
(G) helical milling finishes.
Beneficial effect of the present invention is as follows:
(1) of the present invention one can process continuously multiple aperture to cutter, avoid a large amount of tool changing operations; (2) adopt a helical milling just can arrive at whole hole dimension, simplified work flow, improved drilling efficiency; (3) method for helically milling hole of the present invention is different from traditional drilling, the cutting force decrease, also greatly extended the service life of cutter, and heat radiation is convenient, good processing accuracy, also can be used for the high accurate hole processing of the difficult-to-machine materials such as titanium alloy, the fine composite reinforcing material of carbon, mould steel; (4) the present invention simple in structure, be easy to manufacture, be convenient to install low cost of manufacture, the fine drilling ability of having expanded traditional horizontal lathe.
The accompanying drawing explanation
Describe the present invention in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is structural representation of the present invention;
Fig. 2 is use state diagram of the present invention;
Fig. 3 is the top view after arrangement for adjusting height of the present invention sheds movable cushion block;
Fig. 4 is cutter holding mechanism structure schematic diagram of the present invention;
Fig. 5 is principle schematic of the present invention;
Fig. 6 is workflow diagram of the present invention;
Wherein, O
1o
1mean the lathe main axis, O
2o
2mean the center cutter axis, ω means the lathe spindle rotating speed, and n means the cutter rotational velocity, and e means the offset distance of the relative lathe main axis of center cutter axis along X-direction, F
athe axial feed that means cutter.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with the specific embodiment, further set forth the present invention.
The cutter free-wheeling system comprise drive unit 10 and for connecting drive device 10 the cutter holding mechanism 11 with cutter 0, drive unit 10 produces rotations by cutter holding mechanism 11 band cutters 0; Drive unit 10 is installed on the fixed support 3 of L-type by end face bolt (not shown in FIG.) with cantilevered fashion, drive unit 10 comprises output shaft 102 and motion controller 103, motion controller 103 is in order to adjust the rotary speed of output shaft 102, thus control cutter 0 rotating speed.
Arrangement for adjusting height comprises movable cushion block 20, is arranged on the fixedly cushion block 21 of movable cushion block 20 belows and heightens parts, and the upper end of movable cushion block 20 is connected with the fixed support 3 of L-type by the first securing member 30.Movable cushion block 20 and fixedly cushion block 21 by eight the second securing members 23, fix, eight the second securing members 23 evenly are arranged on fixedly upside, downside and the right side of cushion block 21.
Heighten parts and comprise that two height that are arranged on fixing cushion block 21 regulate double-screw bolt 220 and be arranged on driving gear shaft 221 and four the passive tooth wheel shafts 222 on fixing cushion block 21; Driving gear shaft 221 is arranged on fixedly on cushion block 21 by active bearings (not shown in FIG.), passive tooth wheel shaft 222 with highly regulate double-screw bolt 220 and be connected with fixing cushion block 21 by the driving type screw thread respectively; Highly regulate double-screw bolt 220 and be separately positioned on fixedly top, left side and the below, left side of cushion block 21, driving gear shaft 221 is arranged on the fixedly centre position, right side of cushion block 21; Driven gear 2220 simultaneously that be respectively equipped with driving gear 2211 on driving gear shaft 221 and passive tooth wheel shaft 222 and be meshed with driving gear 2211, driven gear 2220 is evenly distributed on the surrounding of driving gear 2211; The upper end of highly regulating double-screw bolt 220 and driving gear shaft 221 is respectively equipped with the first inner hexagonal hole (not shown) and the second inner hexagonal hole (not shown) of highly regulating double-screw bolt 220 and driving gear shaft 221 rotations for driving, and the upper end of passive tooth wheel shaft 222 is connected with movable cushion block 20 by passive bearing (not shown in FIG.); Be respectively equipped with the first adjustment hole 200 and the second adjustment hole 31 that communicate with the first inner hexagonal hole and the second inner hexagonal hole on movable cushion block 20 and fixed support 3.
The method for helically milling hole of helical milling device 100 of the present invention comprises following step:
(A) unload lathe saddle parts (not shown in FIG.), helical milling device 100 is arranged on to the knife rest interface position of lathe cross slide 41 by screw, and by lathe cross slide 41, making relative lathe 4 main shafts of cutter 0 rotation axis is zero along the side-play amount of X-direction, completes initialization;
(B) after having initialized, treat the diameter d of diameter D and the cutter 0 of drilling according to workpiece 5, determine the offset Δ X of relative lathe 4 main shafts of cutter 0 rotation axis along X-direction:
When cutter 0 rotation axis and lathe 4 main shafts when contour along X-direction, offset Δ X=(D-d)/2;
When cutter 0 rotation axis and lathe 4 main shafts when not contour along X-direction, at first by arrangement for adjusting height make cutter 0 rotation axis and lathe 4 main shafts contour along X-direction, in like manner can draw offset Δ X=(D-d)/2;
(C) according to determined offset Δ X, by lathe cross slide 41, cutter 0 rotation axis is moved to Δ X=(D-d)/2 distance relative to lathe 4 main shafts to the left or to the right along X-direction, make helical milling device 100 be adjusted to required drilling state;
(D) after step (C) completes, start hole milling: the workpiece 5 that makes to be arranged on lathe chuck 40 together rotates in company with lathe 4 main shafts, drive unit 10 band cutter 0 rotations, cutter 0 is realized axial feed under the drive of the vertical planker 42 of lathe simultaneously, when cutter 0 contacts with workpiece 5, the rotation of workpiece 5 realizes the revolution feeding of cutter 0, and cutter 0 finally completes helical milling with the screwfeed of combination; Can control the rotating speed of cutter 0 by motion controller 103;
(E) judge whether to need to continue hole milling:
When not needing to continue hole milling, go to step G;
When needs continue hole milling, go to step F;
(F) judge whether next aperture changes:
When aperture does not change, go to step D;
When aperture changes, go to step B;
(G) helical milling finishes.
Arrangement for adjusting height, by following step, makes cutter 0 rotation axis and lathe 4 main shafts contour along X-direction:
(a) unclamp the second securing member 23;
(b) drive and highly regulate double-screw bolt 220 and driving gear shaft 221 rotations by the first inner hexagonal hole and the second inner hexagonal hole respectively, driving gear 2211 is under the driving of driving gear shaft 221, driving driven gear 2220 together rotates, until relative lathe 4 main shafts of cutter 0 rotation axis are without the skew of Y direction, shut-down operation;
(c) tighten the second securing member 23, finish to regulate.
The first securing member 30 and second securing member 23 of the present embodiment are fastening bolt and alignment pin.
The drive unit 10 of the present embodiment can adopt air motor or electric main shaft.
Above demonstration and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (6)
1. the helical milling device for lathe, it is characterized in that, the arrangement for adjusting height that the cutter free-wheeling system that comprise cutter (0), with cutter (0), is connected is contour along X-direction with regulating cutter (0) rotation axis and lathe (4) main shaft, described cutter free-wheeling system is connected with arrangement for adjusting height by fixed support (3); Described arrangement for adjusting height comprises the movable cushion block (20) that is connected with fixed support (3) bottom, is arranged on the fixedly cushion block (21) of movable cushion block (20) below and heightens parts; The described parts of heightening comprise that a plurality of height that are arranged on fixing cushion block (21) one sides regulate double-screw bolts (220) and be arranged on driving gear shaft (221) and a plurality of passive tooth wheel shaft (222) of opposite side, the driven gear (2220) that is respectively equipped with driving gear (2211) on described driving gear shaft (221) and passive tooth wheel shaft (222) and all is meshed with driving gear (2211); The other end that described height is regulated double-screw bolt (220) and driving gear shaft (221) is respectively equipped with the first inner hexagonal hole and the second inner hexagonal hole of highly regulating double-screw bolt (220) and driving gear shaft (221) rotation for driving, and the other end of described passive tooth wheel shaft (222) is connected with movable cushion block (20).
2. the helical milling device for lathe according to claim 1, it is characterized in that, described cutter free-wheeling system comprise the drive unit (10) that is arranged on fixed support (3) upper end and for connecting drive device (10) the cutter holding mechanism (11) with cutter (0), described drive unit (10) comprises output shaft (102) and can control the motion controller (103) of output shaft (102) rotating speed.
3. the helical milling device for lathe according to claim 2, it is characterized in that, described cutter holding mechanism (11) comprises clamp body (110), is arranged on the collet (111) in clamp body (110) one ends and is arranged on the upper check nut (112) for fixing spring chuck (111) of clamp body (110); One end of described cutter (0) runs through check nut (112) and is arranged in collet (111), and described output shaft (102) is arranged in the other end of clamp body (110); Described cutter (0), output shaft (102) and clamp body (110) are coaxial to be installed.
4. the helical milling device for lathe according to claim 1, it is characterized in that, be respectively equipped with first adjustment hole (200) and second adjustment hole (31) corresponding with the first inner hexagonal hole and the second inner hexagonal hole on described movable cushion block (20) and fixed support (3).
5. according to the described helical milling device for lathe of claim 2 or 3, it is characterized in that, described drive unit (10) is air motor or electric main shaft.
6. the method for helically milling hole according to the described helical milling device of claims 1 to 3 any one, is characterized in that, comprises following step:
(A) helical milling device (100) is arranged on to the knife rest interface position of lathe cross slide (41), and, by lathe cross slide (41), makes the skew of the relative lathe of cutter (0) rotation axis (4) main shaft without X-direction, complete initialization;
(B) after having initialized, treat the diameter d of diameter D and the cutter (0) of drilling according to workpiece (5), determine the offset Δ X of the relative lathe of cutter (0) rotation axis (4) main shaft along X-direction:
When cutter (0) rotation axis and lathe (4) main shaft when contour along X-direction, offset Δ X=(D-d)/2;
When cutter (0) rotation axis and lathe (4) main shaft when not contour along X-direction, by arrangement for adjusting height make cutter (0) rotation axis and lathe (4) main shaft contour along X-direction, in like manner can draw offset Δ X=(D-d)/2;
(C) according to determined offset Δ X, by lathe cross slide (41), cutter (0) rotation axis is moved to Δ X relative to lathe (4) main shaft along X-direction, described helical milling device (100) is adjusted to required drilling state;
(D) after step (C) completes, the workpiece (5) that makes to be arranged on lathe chuck (40) together rotates in company with lathe (4) main shaft, described cutter free-wheeling system band cutter (0) rotation, cutter (0) is realized axial feed under the drive of the vertical planker of lathe (42) simultaneously, the rotation of described workpiece (5) realizes the revolution feeding of cutter (0), and cutter (0) finally completes helical milling with the screwfeed of combination;
(E), after step (D) completes, judge whether to need to continue hole milling:
When not needing to continue hole milling, go to step G;
When needs continue hole milling, go to step F;
(F) judge whether next aperture changes:
When aperture does not change, go to step D;
When aperture changes, go to step B;
(G) helical milling finishes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100756180A CN102179559B (en) | 2011-03-28 | 2011-03-28 | Spiral hole milling device for lathe and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100756180A CN102179559B (en) | 2011-03-28 | 2011-03-28 | Spiral hole milling device for lathe and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102179559A CN102179559A (en) | 2011-09-14 |
| CN102179559B true CN102179559B (en) | 2013-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100756180A Expired - Fee Related CN102179559B (en) | 2011-03-28 | 2011-03-28 | Spiral hole milling device for lathe and method thereof |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658391A (en) * | 2012-05-18 | 2012-09-12 | 大连理工大学 | Spiral hole milling device |
| CN108145533B (en) * | 2017-12-07 | 2019-06-14 | 南京信息职业技术学院 | The cutter revolution-radius of helical milling device adjusts measure and control device and its control method |
| CN112008124B (en) * | 2020-07-28 | 2022-01-25 | 成都飞机工业（集团）有限责任公司 | Automatic milling method for precision hole |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202052975U (en) * | 2011-03-28 | 2011-11-30 | 南京信息职业技术学院 | Spiral hole-milling device for lathe |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4044650A (en) * | 1976-01-16 | 1977-08-30 | Hardinge Brothers, Inc. | Milling attachment for a lathe |
| CN2147919Y (en) * | 1992-06-18 | 1993-12-01 | 北京农业工程大学附属工厂 | High-efficiency multifunction milling device attached to lathe |
| GB2284169B (en) * | 1993-11-12 | 1997-03-05 | Payne F J & Son Ltd | Auxiliary machine tool |
| DE20113927U1 (en) * | 2001-02-08 | 2002-03-14 | Isele Siegfried | Drilling / milling unit on the lathe |
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2011
- 2011-03-28 CN CN2011100756180A patent/CN102179559B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202052975U (en) * | 2011-03-28 | 2011-11-30 | 南京信息职业技术学院 | Spiral hole-milling device for lathe |
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| CN102179559A (en) | 2011-09-14 |
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Granted publication date: 20131211 Termination date: 20180328 |