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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- annular disc
- linear velocity
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Abstract
The invention provides a method for acquiring the ultrahigh cutting linear velocity, which comprises the following steps: mounting an annular disc on a tool shank mounted on a main shaft of a vertical machining center; fixedly clamping a turning tool bar provided with a cutting blade on a worktable of the vertical machining center; in the mounting process, ensuring that a central line of the turning tool bar is vertical to an axial line of the main shaft, and a plane formed by the tip of the turning tool and the axial line of the annular disc is parallel with the Y axis of the vertical machining center; moving the worktable of the vertical machining center for certain distance according to the cutting depth so that the main shaft drives the tool shank to rotate at a high speed, then the contact zone of the outer edge of the annular disc and the tool tip obtains ultrahigh linear velocity, and the main shaft is fed axially while rotating so as to achieve the ultrahigh velocity external circle cutting of the annular disc on the vertical machining center. The method fixes a cutting tool, while a workpiece and a high-speed electric main shaft of the vertical machining center are operated at a high speed together so that the ultrahigh linear velocity can be acquired; besides, the method is safe and reliable to be favorable for testing the parameters of cutting force, cutting temperature, and the like under ultrahigh 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)
1. method of obtaining super-high cutting linear velocity, it is characterized in that: 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 promptly can realize the ultrahigh speed external cutting of annular disc on vertical machining centre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100139047A CN101456140B (en) | 2009-01-07 | 2009-01-07 | Method for obtaining super-high cutting linear velocity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100139047A CN101456140B (en) | 2009-01-07 | 2009-01-07 | Method for obtaining super-high cutting linear velocity |
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| Publication Number | Publication Date |
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| CN101456140A true CN101456140A (en) | 2009-06-17 |
| CN101456140B CN101456140B (en) | 2010-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009100139047A Expired - Fee Related CN101456140B (en) | 2009-01-07 | 2009-01-07 | Method for obtaining super-high cutting linear velocity |
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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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Granted publication date: 20100714 Termination date: 20130107 |