CN104175169B - Inelastic collision and rolling viscosity resistance granule coupling power consumption Digit Control Machine Tool - Google Patents
Inelastic collision and rolling viscosity resistance granule coupling power consumption Digit Control Machine Tool Download PDFInfo
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- CN104175169B CN104175169B CN201410391339.9A CN201410391339A CN104175169B CN 104175169 B CN104175169 B CN 104175169B CN 201410391339 A CN201410391339 A CN 201410391339A CN 104175169 B CN104175169 B CN 104175169B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0032—Arrangements for preventing or isolating vibrations in parts of the machine
- B23Q11/0039—Arrangements for preventing or isolating vibrations in parts of the machine by changing the natural frequency of the system or by continuously changing the frequency of the force which causes the vibration
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Abstract
Inelastic collision and rolling viscosity resistance granule coupling power consumption Digit Control Machine Tool, relate to Digit Control Machine Tool.It is provided with Digit Control Machine Tool lathe bed, column, crossbeam, back timber, buttress brace, ram, electro spindle, workbench；At least 2 layers of coupling power consumption plate it are provided with in minimum 1 structural member of Digit Control Machine Tool, described structural member includes at least one in Digit Control Machine Tool lathe bed, Digit Control Machine Tool column, cross beam of numerical control machine, Digit Control Machine Tool back timber, Digit Control Machine Tool buttress brace, numerical control machine tool ram etc., coupling power consumption plate is provided with groove array, in each groove of groove array, place at least 2 high surface viscosity resistance polymeric particles, in each groove, place 1 surface low restorer number granule.When machine tool high speed heavy cut, the unidirectional and multidirectional vibrational energy that cutting force produces can be dissipated by coupling power consumption plate the most step by step, and energy loss factor is high, and inhibition of vibration is obvious, is effectively improved machine stability and machining accuracy.
Description
Technical field
The present invention relates to Digit Control Machine Tool, especially relate to a kind of inelastic collision and roll viscosity resistance granule coupling power consumption numerical control machine
Bed.
Background technology
At present, the development trend of Digit Control Machine Tool is high speed, high accuracy and high efficiency, but can cause machine with heavy cut at high speed
The stability of bed lathe bed declines, and affects the machining accuracy of workpiece.
External common method (H wang C, Jack C H, Wu T S, the et al.Framework for for improving machine stability
integrated mechanical design automation[J].Computer Aided Design,2000；32 (5): 355-365) for passing through
The methods such as finite element parts each to lathe carry out statics, dynamics calculation, and the gusset optimizing each structural member of lathe is arranged and structure
Support, but shortcoming to be technology Calculation difficulty relatively big, the manufacturing cycle is longer.The common method of domestic raising machine stability (Chen Chao,
The Railway Project of large-sized gantry milling machine basic engineering, scientific and technical innovation Leader, 2011,4:73-74) for increasing machine tool structure wall thickness, lack
Point is the increase in metal material usage amount and manufacturing cost.
Along with rotating speed and the raising of working (machining) efficiency, the control of Digit Control Machine Tool stability is a very important bottleneck, increases
The power consumption mechanism of each structural member of lathe has important function to the stability improving Digit Control Machine Tool.
Summary of the invention
Present invention aim at a kind of inelastic collision being provided and rolling viscosity resistance granule coupling power consumption Digit Control Machine Tool.
The present invention is provided with Digit Control Machine Tool lathe bed, Digit Control Machine Tool column, cross beam of numerical control machine, Digit Control Machine Tool back timber, Digit Control Machine Tool add
Brutal, numerical control machine tool ram, electric main shaft of digital control machine tool, numerically controlled machine；
At Digit Control Machine Tool lathe bed, Digit Control Machine Tool column, cross beam of numerical control machine, Digit Control Machine Tool back timber, Digit Control Machine Tool buttress brace, number
It is respectively equipped with at least 2 layers of coupling power consumption plate in control machine ram, coupling power consumption plate is provided with groove array, at groove array
Place at least 2 high surface viscosity resistance polymeric particles in each groove, in each groove, place 1 surface low extensive
Complex coefficient granule.
Described groove array can be set to m × n groove array, and m is the length direction granule groove number of coupling power consumption plate, and n is coupling
The width granule groove number of power consumption plate.
May be positioned such that thousand high surface viscosity resistance polymeric particles in each groove.
Described high surface viscosity resistance polymeric particles can use intercrossed network type polymer, intercrossed network type polymer to be by double
Intersect between network infiltration, mechanical interlocking and producing forces the good methylbenzene of a kind of combination property of mutual tolerance and cooperative effect
Based polysiloxane and acrylate interpenetrating polymer macromolecular material intercrossed network type polymer, high surface viscosity resistance macromolecule
The particle diameter of grain can be 0.1～0.3mm.
Described surface low restorer number granule can use and be coated with methyl phenyl silicone and acrylate IPN net outside metallic particles
Network type polymer, the density of metallic particles can be 7.0～18.3g/cm3, the particle diameter of metallic particles can be 2～10mm, the first of cladding
Base phenyl polysiloxane can be 0.2～0.5mm with the thickness of acrylate intercrossed network type polymer.
Described coupling power consumption plate is the metallic plate that surface is provided with m × n groove array.
Groove diameter d of described coupling power consumption plate1Can be 0.92～0.94d, d be the diameter of surface low restorer number granule, groove
Degree of depth h1Can be 0.21～0.23d, in groove, fill out the high surface viscosity resistance polymeric particles the put degree of depth away from coupling power consumption plate surface
h2Can be 0.079～0.081d.
Adding man-hour at numerical control machine tool cutting, the cutting force of main shaft can cause the vibration of machine tool structure part, when vibration is transmitted by structural member
After coupling power consumption plate, at coupling power consumption plate groove inner surface low restorer number granule in the viscosity resistance polymeric particles of high surface
Rolling, the viscosity resistance of this process has dissipated the kinetic energy of 20%～40%, and structure vibration displacement is the biggest, and viscosity resistance consumes
Scattered energy is the most.When the energy that machine tool structure part passes over is little, rely on surface low restorer number granule in high surface viscous
The viscosity resistance rolling generation on resistance polymeric particles can be by kinetic energy dissipation；At vibrational energy more than viscosity resistance dissipation energy
Time, on coupling power consumption plate, adjacent surface low restorer number granule is with high collision frequency, low restorer number generation inelastic collision,
Rapidly the kinetic energy of coupling power consumption plate is dissipated step by step by 7～12 surface low restorer number granules.Adjacently situated surfaces low restorer number
Retaining a necessary gap delta between Li, surface low restorer number granule is arranged by discrete element meter in the position of coupling power consumption plate
Draw.Owing to arranging multi-layer-coupled power consumption plate on structure of numerically controlled machine-tool part, couple high-frequency on power consumption plate carrying out at every layer
The coupling consumption of the inelastic collision of surface low restorer number granule and high surface viscosity resistance polymeric particles and rolling viscosity resistance
Can, so that the multilamellar power consumption plate that the vibration produced by machine tool chief axis cutting is increased suppresses rapidly, energy loss factor is high, presses down and shakes
Effect is obvious, thus is effectively increased stability and the machining accuracy of Digit Control Machine Tool.
Compared with prior art, advantages of the present invention is as follows:
(1) present invention is after each structural member of Digit Control Machine Tool internally installed coupling power consumption plate, when machine tool high speed heavy cut, can will cut
Unidirectional and the multidirectional vibrational energy that power of cutting produces is dissipated the most step by step by coupling power consumption plate, and energy loss factor is high, and inhibition of vibration is obvious,
It is effectively increased stability and the machining accuracy of lathe.
(2) original structure is changed little by the present invention, and fringe cost is relatively low, it is easy to carry out.
(3) the surface low restorer number granule that the present invention uses is with metal material as base material, outside cladding methyl phenyl silicone
With acrylate interpenetrating polymer, surface low restorer number granule strength is high, it is long to be difficult to the burn into life-span, can life-time service.
Accompanying drawing explanation
Fig. 1 is the groove location distribution top view of the coupling power consumption plate installed on the structural member based on single vibration；
Fig. 2 is the A-A sectional view of Fig. 1；
Fig. 3 is the B-B sectional view of Fig. 2；
Fig. 4 is the groove location distribution top view of the coupling power consumption plate installed on the structural member based on multidirectional vibration；
Fig. 5 is the C-C sectional view of Fig. 4；
Fig. 6 is the D-D sectional view of Fig. 4；
Fig. 7 is the structural member schematic diagram of CNC planer type milling machine；
Fig. 8 is that Digit Control Machine Tool column differing heights installs coupling power consumption plate schematic diagram；
Fig. 9 is the original column of Digit Control Machine Tool and use frequency response function correlation curve after the method for the present invention.
Figure is respectively labeled as: 11 Digit Control Machine Tool lathe beds, 12 Digit Control Machine Tool columns, 13 cross beam of numerical control machines, 14 numerical controls
Lathe back timber, 15 Digit Control Machine Tool buttress braces, 16 numerical control machine tool rams, 17 electric main shaft of digital control machine tool, 18 Digit Control Machine Tools
Workbench, coupling that 2 are contained on machine tool structure part power consumption plate, 3 process on coupling power consumption plate calculate through discrete element
Surface low restorer number particle position arrangement groove, 4 high surface viscosity resistance polymeric particles, 5 surface low restorer numbers
Grain.
Detailed description of the invention
Following example will the present invention is further illustrated in conjunction with accompanying drawing.
See Fig. 1～8, the embodiment of the present invention be provided with Digit Control Machine Tool lathe bed 11, Digit Control Machine Tool column 12, cross beam of numerical control machine 13,
Digit Control Machine Tool back timber 14, Digit Control Machine Tool buttress brace 15, numerical control machine tool ram 16, electric main shaft of digital control machine tool 17, Digit Control Machine Tool work
Station 18；
At Digit Control Machine Tool lathe bed 11, Digit Control Machine Tool column 12, cross beam of numerical control machine 13, Digit Control Machine Tool back timber 14, Digit Control Machine Tool
It is respectively equipped with at least 2 layers of coupling power consumption plate 2 in buttress brace 15, numerical control machine tool ram 16, coupling power consumption plate 2 is provided with groove
Array, places at least 2 high surface viscosity resistance polymeric particles 4 in each groove of groove array, recessed at each
1 surface low restorer number granule 5 is placed in groove 3.
Described groove array can be set to m × n groove array, and m is the length direction granule groove number of coupling power consumption plate 2, and n is coupling
Close the width granule groove number of power consumption plate 2.
May be positioned such that thousand high surface viscosity resistance polymeric particles 4 in each groove.
It is to pass through that described high surface viscosity resistance polymeric particles 4 can use intercrossed network type polymer, intercrossed network type polymer
Intersect between dual network infiltration, mechanical interlocking and producing forces the good methyl of a kind of combination property of mutual tolerance and cooperative effect
Phenyl polysiloxane and acrylate interpenetrating polymer macromolecular material intercrossed network type polymer, high surface viscosity resistance macromolecule
The particle diameter of granule 4 can be 0.1～0.3mm.
Described surface low restorer number granule 5 can use and be coated with methyl phenyl silicone and acrylate IPN outside metallic particles
Network-type polymer, the density of metallic particles can be 7.0～18.3g/cm3, the particle diameter of metallic particles can be 2～10mm, cladding
Methyl phenyl silicone can be 0.2～0.5mm with the thickness of acrylate intercrossed network type polymer.
Described coupling power consumption plate is the metallic plate that surface is provided with m × n groove array.
Groove diameter d of described coupling power consumption plate1Can be 0.92～0.94d, d be the diameter of surface low restorer number granule 5, recessed
Groove depth h1Can be 0.21～0.23d, fill out the high surface viscosity resistance polymeric particles 4 put in groove away from coupling power consumption plate surface
Degree of depth h2Can be 0.079～0.081d.
Adding man-hour at numerical control machine tool cutting, the cutting force of main shaft can cause the vibration of machine tool structure part, when vibration is transmitted by structural member
After coupling power consumption plate, at coupling power consumption plate groove inner surface low restorer number granule 5 at high surface viscosity resistance polymeric particles
Rolling in 4, the viscosity resistance of this process has dissipated the kinetic energy of 20%～40%, and structure vibration displacement is the biggest, and viscous hinders
Power dissipation energy is the most.When the energy that machine tool structure part passes over is little, rely on surface low restorer number granule 5 at high table
The viscosity resistance rolling generation on face viscosity resistance polymeric particles 4 can be by kinetic energy dissipation；At vibrational energy more than viscosity resistance
During dissipation energy, surface low restorer number granule adjacent on coupling power consumption plate is with high collision frequency, low restorer number generation non-ballistic
Property collision, by 7～12 surface low restorer number granules rapidly by coupling power consumption plate kinetic energy dissipate step by step.Adjacently situated surfaces is low extensive
Retaining a necessary gap delta between complex coefficient granule, surface low restorer number granule passes through in the position arrangement of coupling power consumption plate
Discrete element calculates.Owing to arranging multi-layer-coupled power consumption plate on structure of numerically controlled machine-tool part, high frequency on every layer of coupling power consumption plate
The inelastic collision carrying out surface low restorer number granule and high surface viscosity resistance polymeric particles of rate and rolling viscosity resistance
Coupling power consumption, so that the multilamellar power consumption plate that the vibration produced by machine tool chief axis cutting is increased suppresses rapidly, energy loss factor is high,
Inhibition of vibration is obvious, thus is effectively increased stability and the machining accuracy of Digit Control Machine Tool.
After single vibration is delivered to the 1st surface low restorer number granule, the decay of speed is shown below:
In formula, miFor the quality of surface low restorer number granule 5, eiFor the recovery coefficient of surface low restorer number granule 5, v1
For surface low restorer number granule initial velocity, vnIt is the n-th surface low restorer number granule initial velocity, μpFor kinetics viscous system
Number.
By inelastic collision and the high surface viscosity resistance macromolecule of 7～10 surface low restorer number granule 5 low restorer numbers
After the coupling power consumption of the viscosity resistance of grain, speed can reduce by more than 80%, therefore can suppress rapidly vibrational energy.
For during machine cut based on multidirectional structural member, such as crossbeam 13, column 12 etc., coupling power consumption plate 2 upper groove 3
Installation as shown in figures 4-6, if now groove 3 also uses the layout of Fig. 1～3, a granule and adjacent particle generation non-ballistic
Property collision frequency relatively low, energy consumption effect is very poor, and whole coupling power consumption plate power consumption skewness, be easily caused lathe knot
The dynamic unbalance loading of component.It is computed, now couples the installation of power consumption plate 2 upper groove 3 as shown in figures 4-6, each high surface viscous
Having 6 the surface low restorer number granules 5 being evenly distributed around resistance polymeric particles 4, each inelastic collision has 3～4
Individual surface low restorer number granule 5 participates in, by the inelastic collision of 9～12 surface low restorer number granule 5 low restorer numbers
After the coupling power consumption of the viscosity resistance of high surface viscosity resistance polymeric particles 4, speed can reduce by more than 80%, can press down rapidly
Damping energy.
Between surface low restorer number granule 5 and high surface viscosity resistance polymeric particles 4 can retention gap δ, gap delta can be
0.12～0.28d, gap delta is crossed conference and is caused the frequency of surface low restorer number granule generation inelastic collision to reduce, and gap delta is too small
The momentum decay of the compression stage of surface low restorer number granule 5 inelastic collision and Restoration stage can be affected, therefore the adding of groove
Work precision, the margin of tolerance of form accuracy etc. of surface low restorer number granule 5 must meet between surface low restorer number granule 5
Gap delta.
Illustrating as a example by Digit Control Machine Tool column, Fig. 8 is to install coupling in the column (i.e. in Fig. 7 12) of Digit Control Machine Tool
The schematic diagram of power consumption plate.
Digit Control Machine Tool stem height is 4.2m, owing to column top vibration displacement is relatively big, at the 3.2～4.1m of stem height, and peace altogether
Filling 22 layers of coupling power consumption plate, the particle diameter of the surface low restorer number granule 5 on this part coupling power consumption plate is 9.5mm, density
For 7.21g/cm3, outside surface low restorer number granule 5, it is coated with methyl phenyl silicone and acrylate interpenetrating polymer, bag
The polymer thickness covered is 0.3mm.As shown in figures 4-6, coupling power consumption plate thickness is the arrangement form of coupling power consumption plate upper groove
9.5mm, coupling power consumption plate vertically to spacing be 4.5mm.Spacing δ of surface low restorer number granule is 1.03mm, and groove is straight
Footpath d1Value be 8.3mm, depth of groove h1For 1.9mm, fill out the high surface viscosity resistance polymeric particles put in groove away from coupling
Close degree of depth h on power consumption plate surface2For 0.7mm, the particle diameter of high surface viscosity resistance polymeric particles is 0.2mm.At Digit Control Machine Tool
During machining, the cutting force of main shaft causes the vibration on machine pillar top will transfer vibrations to arrange by coupling power consumption plate
Surface low restorer number particle system, surface low restorer number granular system is by the inelastic collision of low restorer number and fine
The mechanical energy that transmission comes is dissipated by the coupling power consumption of the viscosity resistance of granule the most step by step, plays raising Digit Control Machine Tool stability and adds
The effect of work precision.
At the 2.1～3.2m of Digit Control Machine Tool stem height, 27 layers of coupling power consumption plate are installed altogether, the table on this part coupling power consumption plate
The particle diameter of face low restorer number granule is 5.2mm, and density is 6.98g/cm3, outside surface low restorer number granule 5, it is coated with methyl
Phenyl polysiloxane and acrylate interpenetrating polymer, the polymer thickness of cladding is 0.27mm.The row of coupling power consumption plate upper groove
Cloth form as shown in figures 4-6, coupling power consumption plate thickness be 7.5mm, coupling power consumption plate vertically to spacing be 3.5mm.Surface is low
Spacing δ of recovery coefficient granule is 0.65mm, groove diameter d1Value be 4.8mm, depth of groove h1For 1.1mm, recessed
The high surface viscosity resistance polymeric particles put degree of depth h away from coupling power consumption plate surface is filled out in groove2For 0.4mm, high surface viscous hinders
The particle diameter of power polymeric particles is 0.2mm.Adding man-hour at numerical control machine tool cutting, the cutting force of main shaft causes in the middle part of machine pillar
Vibrate the surface low restorer number particle system that will transfer vibrations to arrange by coupling power consumption plate, surface low restorer number
The mechanical energy that transmission is come by plastochondria system by the coupling power consumption of the viscosity resistance of the inelastic collision of low restorer number and subparticle is fast
Speed dissipates step by step, plays raising Digit Control Machine Tool stability and the effect of machining accuracy.
At the 0.7～2.1m of Digit Control Machine Tool stem height, 25 layers of coupling power consumption plate are installed altogether, the table on this part coupling power consumption plate
The particle diameter of face low restorer number granule is 3.8mm, and density is 6.74g/cm3, outside surface low restorer number granule 5, it is coated with methyl
Phenyl polysiloxane and acrylate interpenetrating polymer, the polymer thickness of cladding is 0.21mm.The row of coupling power consumption plate upper groove
Cloth form as shown in figures 4-6, coupling power consumption plate thickness be 5.5mm, coupling power consumption plate vertically to spacing be 1.8mm.Surface is low
Spacing δ of recovery coefficient granule is 0.52mm, groove diameter d1For 3.53mm, depth of groove h1For 0.84mm, in groove
Fill out the high surface viscosity resistance polymeric particles put degree of depth h away from coupling power consumption plate surface2For 0.3mm, high surface viscosity resistance is high
The particle diameter of molecule particles is 0.2mm.Adding man-hour at numerical control machine tool cutting, the cutting force of main shaft causes the vibration of machine pillar bottom
The surface low restorer number particle system that will transfer vibrations to arrange by coupling power consumption plate, surface low restorer number granule
Be the coupling power consumption of viscosity resistance by the inelastic collision of low restorer number and subparticle mechanical energy that transmission is come rapidly by
Level dissipates, and plays raising Digit Control Machine Tool stability and the effect of machining accuracy.
This column of Digit Control Machine Tool is carried out stability analysis, and column a size of 650mm × 450mm × 4300mm, Fig. 9 is original
Frequency response function correlation curve after the method for column and the employing present invention.In 1～300Hz low-frequency band, the present invention is than original column
The 1st formant peak-fall about 70%, the 2nd formant peak-fall about 50%, the 3rd formant and follow-up formant are by greatly
Width suppresses, and descent amplitude is up to 1400%～3800%.In 300～600Hz midbanies, the present invention is by original column continuous print
High level spectral peak weakens into two spectral peaks the mildest.It can thus be seen that after using the method for the present invention, surface low restorer number
Granular system is consumed energy will be transmitted the mechanical energy of coming by the inelastic collision of low restorer number and the coupling of viscosity resistance of subparticle
Dissipating step by step rapidly, the stability of Digit Control Machine Tool is substantially improved.
Claims (10)
1. inelastic collision and roll viscosity resistance granule coupling power consumption Digit Control Machine Tool, it is characterised in that be provided with Digit Control Machine Tool lathe bed,
Digit Control Machine Tool column, cross beam of numerical control machine, Digit Control Machine Tool back timber, Digit Control Machine Tool buttress brace, numerical control machine tool ram, Digit Control Machine Tool
Electro spindle, numerically controlled machine；
Being provided with at least 2 layers of coupling power consumption plate in minimum 1 structural member of Digit Control Machine Tool, described structural member includes Digit Control Machine Tool bed
In body, Digit Control Machine Tool column, cross beam of numerical control machine, Digit Control Machine Tool back timber, Digit Control Machine Tool buttress brace, numerical control machine tool ram extremely
Few one, is provided with groove array on coupling power consumption plate, places at least 2 high surfaces and glue in each groove of groove array
Resistance hysteresis polymeric particles, places 1 surface low restorer number granule in each groove.
2. inelastic collision and rolling viscosity resistance granule couple power consumption Digit Control Machine Tool as claimed in claim 1, it is characterised in that institute
Stating groove array and be set to m × n groove array, m is the length direction granule groove number of coupling power consumption plate, and n is coupling power consumption plate
Width granule groove number.
3. inelastic collision and rolling viscosity resistance granule couple power consumption Digit Control Machine Tool as claimed in claim 1, it is characterised in that every
Thousands of grains high surface viscosity resistance polymeric particles is placed in individual groove.
4. inelastic collision and rolling viscosity resistance granule couple power consumption Digit Control Machine Tool as claimed in claim 1, it is characterised in that institute
State high surface viscosity resistance polymeric particles and use intercrossed network type polymer.
5. inelastic collision and rolling viscosity resistance granule couple power consumption Digit Control Machine Tool as claimed in claim 4, it is characterised in that mutually
Wearing network-type polymer is to be produced the first forcing mutual tolerance and cooperative effect by the infiltration that intersects between dual network, mechanical interlocking
Base phenyl polysiloxane and acrylate interpenetrating polymer macromolecular material intercrossed network type polymer, high surface viscosity resistance high score
The particle diameter of sub-granule is 0.1～0.3mm.
6. inelastic collision and rolling viscosity resistance granule couple power consumption Digit Control Machine Tool as claimed in claim 1, it is characterised in that institute
Stating surface low restorer number granule uses cladding methyl phenyl silicone outside metallic particles to be polymerized with acrylate intercrossed network type
Thing.
7. inelastic collision and rolling viscosity resistance granule couple power consumption Digit Control Machine Tool as claimed in claim 6, it is characterised in that institute
The density stating metallic particles is 7.0～18.3g/cm3, the particle diameter of metallic particles is 2～10mm.
8. inelastic collision and rolling viscosity resistance granule couple power consumption Digit Control Machine Tool as claimed in claim 6, it is characterised in that institute
The thickness stating cladding methyl phenyl silicone and acrylate intercrossed network type polymer is 0.2～0.5mm.
9. inelastic collision and rolling viscosity resistance granule couple power consumption Digit Control Machine Tool as claimed in claim 1, it is characterised in that institute
Stating coupling power consumption plate is the metallic plate that surface is provided with m × n groove array.
10. inelastic collision and rolling viscosity resistance granule couple power consumption Digit Control Machine Tool as claimed in claim 1, it is characterised in that
Groove diameter d of described coupling power consumption plate1Being 0.92～0.94d, d is the diameter of surface low restorer number granule, depth of groove h1
It is 0.21～0.23d, in groove, fills out the high surface viscosity resistance polymeric particles put degree of depth h away from coupling power consumption plate surface2For
0.079～0.081d.
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