CN101456140A - Method for obtaining super-high cutting linear velocity - Google Patents
Method for obtaining super-high cutting linear velocity Download PDFInfo
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- CN101456140A CN101456140A CNA2009100139047A CN200910013904A CN101456140A CN 101456140 A CN101456140 A CN 101456140A CN A2009100139047 A CNA2009100139047 A CN A2009100139047A CN 200910013904 A CN200910013904 A CN 200910013904A CN 101456140 A CN101456140 A CN 101456140A
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- 238000005520 cutting process Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000003754 machining Methods 0.000 claims description 21
- 238000012360 testing method Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 5
- 238000003801 milling Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
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Abstract
本发明提供了一种获取超高切削线速度的方法，该方法是在安装于立式加工中心主轴上的刀柄上安装一个环状圆盘，将安装有刀片的车刀杆固定装夹在立式加工中心的工作台上，安装时保证车刀杆的中心线与主轴轴线垂直，车刀刀尖与环状圆盘的轴线形成的面与立式加工中心的Y轴平行，使立式加工中心的工作台按切削深度移动一定距离，使主轴带动刀柄高速回转，环状圆盘的外缘与刀尖接触区域将获得超高的线速度，主轴回转的同时沿轴向进给，即能够在立式加工中心上实现环状圆盘的超高速外圆切削。本发明使刀具固定，而工件与立式加工中心的高速电主轴一起高速运转，能够获得极高的线速度，安全可靠，有利于超高速切削下切削力和切削温度等参数的测试。
The invention provides a method for obtaining ultra-high cutting linear speed. The method is to install an annular disk on the tool handle installed on the main shaft of the vertical machining center, and fix and clamp the turning tool bar with the blade on the On the workbench of the vertical machining center, when installing, ensure that the center line of the turning tool bar is perpendicular to the axis of the spindle, and the surface formed by the tip of the turning tool and the axis of the annular disc is parallel to the Y-axis of the vertical machining center, so that the vertical The worktable of the machining center moves a certain distance according to the cutting depth, so that the spindle drives the tool handle to rotate at a high speed, and the contact area between the outer edge of the annular disc and the tool tip will obtain a super high linear speed, and the spindle will feed along the axial direction while rotating. That is to say, the ultra-high-speed outer circle cutting of the ring-shaped disc can be realized on the vertical machining center. The invention fixes the tool, and the workpiece and the high-speed electric spindle of the vertical machining center run together at high speed, can obtain extremely high linear speed, is safe and reliable, and is beneficial to the test of parameters such as cutting force and cutting temperature under ultra-high-speed cutting.
Description
Technical field
The present invention relates to a kind of acquisition methods that is used for the super-high cutting linear velocity of parameter testings such as cutting force under the superhigh-speed cutting and cutting temperature, belong to the metal cutting technology field.
Background technology
" at a high speed " of superhigh-speed cutting is commonly referred to as high linear velocity, therefore, the realization of superhigh-speed cutting technology must at first can obtain super-high cutting linear velocity, also must at first obtain super-high cutting linear velocity to the test of superhigh-speed cutting process parameter such as cutting force and cutting temperature etc.Lathe is the most important condition and the key factor that realizes at a high speed with superhigh-speed cutting, not only require the machine spindle speed height with superhigh-speed cutting at a high speed, and require the moment of torsion of transmission and power also to want big, and in running up, also to keep good dynamic characteristic and thermal characteristic.
Existing circumference stock-removing machine has general horizontal lathe, vertical lathe, vertical machining centre or vertical knee-type milling machine etc.
Because workpiece general using scroll chuck is installed on the main shaft on the horizontal lathe, obtain high linear velocity, the rotating speed of main shaft must be very high, but if the rotating speed of main shaft is higher, because action of centrifugal force, often cause the clamping force of chuck to reduce, workpiece may be got rid of when serious and fly, abnormally dangerous, the rotating speed of therefore general lathe spindle is not very high, the highest at present about 10000 rev/mins (except the miniature lathe: the maximum speed of spindle of miniature lathe configuration can reach 100,000 rev/mins, but its diameter of work that allows to process is usually at several mm even littler).The high linear speed that high-speed cutting is required, also relevant outside the Pass having with diameter with rotating speed, be subjected to the restriction of lathe structure, the diameter of workpiece generally also can not be very big, and general horizontal lathe allows the maximum diamater of work about 400mm.Be subjected to the restriction of security, spindle power and moment of torsion, diameter of work is big more, and the speed of mainshaft that is disposed is low more, so, utilize horizontal lathe to be difficult to obtain the required high linear speed of high-speed cutting.
The diameter of work of vertical lathe can be bigger, in like manner, is subjected to the restriction of power and moment of torsion, and diameter of work is big more, and the maximum speed of main shaft is low more, therefore, utilizes vertical lathe also to be difficult to obtain the required high linear speed of high-speed cutting.
Mounting cutter on main shaft during vertical machining centre (or vertical knee-type milling machine) Milling Process, be subjected to the restriction of cutter structure, in order to guarantee certain security, under the high rotating speed, the tool diameter that is allowed is generally less, therefore, utilize vertical machining centre (or vertical knee-type milling machine) Milling Process also to be difficult to obtain very high linear velocity.At present the machining field utilize cutting linear velocity that cutter or workpiece revolution obtained generally 4000-6000 rice/minute below.
Summary of the invention
The present invention is directed to existing machine cut and add the problem that is difficult to obtain super-high cutting linear velocity that exist man-hour, a kind of simple and practical, safe and reliable method of obtaining super-high cutting linear velocity is provided.
The method of obtaining super-high cutting linear velocity of the present invention is:
An annular disc is installed on the handle of a knife that is installed on the vertical machining centre main shaft, with lathe tool bar that blade is installed fixedly clamping on the workbench of vertical machining centre, the center line that guarantees the lathe tool bar during installation is vertical with main-shaft axis, the lathe tool point of a knife is parallel with the Y-axis of vertical machining centre with the face that the axis of annular disc forms, the workbench of vertical machining centre is moved a certain distance by cutting depth, make main shaft drive the handle of a knife high speed rotary, the outer rim of annular disc and point of a knife contact area will obtain the linear velocity of superelevation, feeding vertically in the time of main shaft gyration (being drillman's operation mode) promptly can realize the ultrahigh speed external cutting of annular disc on vertical machining centre.
The generic definition of the existing vertical machining center of machine industry is followed in the definition of Y-axis.
The cutting linear velocity that said method obtained and the external diameter of annular disc, the speed of mainshaft are relevant, and the external diameter of annular disc is big more, and the speed of mainshaft is high more, and the cutting linear velocity that obtains is high more.The vertical machining centre machine adopted is high-power, the high pulling torque high-speed motorized spindles, drives the motion of annular disc high speed rotary by main shaft, can obtain 1 myriametre/minute more than the superelevation linear velocity.Adopt geometrical symmetry and the extraordinary annular disc of Mass Distribution uniformity, security when having increased the ultrahigh speed running, for reducing the influence of centrifugal force, the density of workpiece material should be as far as possible little in addition, under the certain situation of diameter, the thickness of workpiece should be as far as possible little.In the working space of vertical machining centre sealing, process, also guaranteed safety.
The present invention is simple and practical, cutter is fixed, and annular disc is installed on the main shaft handle of a knife of vertical machining centre, high-speed main spindle with vertical machining centre runs up, and can obtain high linear velocity, can realize ultrahigh speed cylindrical turning on vertical machining centre, and in the working space of vertical machining centre sealing, process, safe and reliable, can be on the lathe tool bar sensor installation easily, help cutting force and the isoparametric test of cutting temperature under the superhigh-speed cutting.
Description of drawings
Fig. 1 is a principle schematic of the present invention.
Fig. 2 is the scheme of installation of lathe tool point of a knife.
Among the figure: 1, electric main shaft, 2, vertical machining centre, 3, handle of a knife, 4, annular disc, 5, the lathe tool bar, 6, vice, 7, workbench.
The specific embodiment
As shown in Figure 1, method of the present invention realizes on vertical machining centre 2.The electric main shaft 1 of the vertical machining centre 2 that adopts, spindle nose nominal diameter 170mm, its rotating speed are that 42000rpm, power are 42KW, the model of handle of a knife 3 is for agreeing receive the HSK63A CS40 070M of cutter company.The General Definition of the existing vertical machining center of machine industry is followed in the definition of X-axis, Y-axis, Z axle, as shown in Figure 1, the direction that moves up and down of main shaft is the Z axle, and the move left and right direction of workbench was an X-axis when operator faced main shaft in lathe the place ahead, and moving forward and backward direction is Y-axis.
Carry out according to the following steps:
(1) make an aluminium alloy ring-type disk 4: its internal diameter size is φ 40mm, with the external diameter assembling of handle of a knife 3, and the outside dimension φ 100mm of annular disc 4, thickness 27mm, outside dimension is big as far as possible under the assurance safety condition.
(2) the lathe tool bar 5 that blade will be installed is installed on the workbench 7 of vertical machining centre 2 by universal vice 6 (or other special fixtures).Guarantee the center line of lathe tool bar 5 and the axis normal of electric main shaft 1 during installation, the center line of lathe tool bar 5 is along the X-direction adjustment, guarantee that point of a knife is along the axis of X-axis (or Y-axis) by electric main shaft 1, and the lathe tool point of a knife is parallel with Y-axis with the face that the axis of disk forms, as shown in Figure 2, with the influence of the installation site that reduces blade to operating angle.
(3) adjust workbench 7, make it move 1mm along Y-axis by the cutting depth direction of blade, promptly cutting depth is 1mm.The adjustment direction of cutting depth is a Y-axis.
(4) make electric main shaft 1 drive the high speed rotary of handle of a knife 3 with 40000rpm, the linear velocity that the outer rim of annular disc 4 obtains is v=3.14*100*40000/1000=12560m/min.Electricity 1 rotating while of main shaft and along the amount of feeding axial feed (promptly with drill mode work) of Z axle with 0.001mm/r.
Annular disc 4 can realize the ultrahigh speed external cutting speed of disc-like workpiece with the electric 1 rotating while of main shaft and along Z axle axial feed on vertical machining centre 2.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100139047A CN101456140B (en) | 2009-01-07 | 2009-01-07 | A Method of Obtaining Super High Cutting Linear Speed |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100139047A CN101456140B (en) | 2009-01-07 | 2009-01-07 | A Method of Obtaining Super High Cutting Linear Speed |
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| CN101456140A true CN101456140A (en) | 2009-06-17 |
| CN101456140B CN101456140B (en) | 2010-07-14 |
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| CN2009100139047A Expired - Fee Related CN101456140B (en) | 2009-01-07 | 2009-01-07 | A Method of Obtaining Super High Cutting Linear Speed |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169054A (en) * | 2011-01-06 | 2011-08-31 | 西安理工大学 | Cutting force analog loading and testing device for high-speed electric spindle |
| CN102490084A (en) * | 2011-11-28 | 2012-06-13 | 山东大学 | Device for evaluating and testing interrupted cutting performance of tools at high speed |
| CN104289972A (en) * | 2013-07-19 | 2015-01-21 | 大隈株式会社 | Machine tool and control method for the same |
-
2009
- 2009-01-07 CN CN2009100139047A patent/CN101456140B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169054A (en) * | 2011-01-06 | 2011-08-31 | 西安理工大学 | Cutting force analog loading and testing device for high-speed electric spindle |
| CN102169054B (en) * | 2011-01-06 | 2012-11-28 | 西安理工大学 | Cutting force analog loading and testing device for high-speed electric spindle |
| CN102490084A (en) * | 2011-11-28 | 2012-06-13 | 山东大学 | Device for evaluating and testing interrupted cutting performance of tools at high speed |
| CN104289972A (en) * | 2013-07-19 | 2015-01-21 | 大隈株式会社 | Machine tool and control method for the same |
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| Publication number | Publication date |
|---|---|
| CN101456140B (en) | 2010-07-14 |
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