CN110449992A - The method for calculating turning power based on unit cutting energy coefficient - Google Patents
The method for calculating turning power based on unit cutting energy coefficient Download PDFInfo
- Publication number
- CN110449992A CN110449992A CN201910286014.7A CN201910286014A CN110449992A CN 110449992 A CN110449992 A CN 110449992A CN 201910286014 A CN201910286014 A CN 201910286014A CN 110449992 A CN110449992 A CN 110449992A
- Authority
- CN
- China
- Prior art keywords
- cutting
- sce
- power
- motion
- workpiece material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005520 cutting process Methods 0.000 title claims abstract description 63
- 238000007514 turning Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 26
- 238000000227 grinding Methods 0.000 claims abstract description 16
- 238000013461 design Methods 0.000 abstract description 3
- 230000003466 anti-cipated effect Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000004422 calculation algorithm Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- 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
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/10—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting speed or number of revolutions
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
Abstract
The invention discloses a kind of method for calculating turning power based on unit cutting energy coefficient, turning power P is P=Pc+Pf+Pp, PcFor the power in principal cutting movement direction, Pc=SCEcZw, SCEcFor the unit cutting energy coefficient in principal cutting movement direction；PfFor the power of direction of feed motion, Pf=SCEfZw, SCEfEnergy needed for removing unit volume workpiece material for direction of feed motion cutting tool；PpFor the power of the cutting-in direction of motion, Pp=SCEpZw, SCEpEnergy needed for removing unit volume workpiece material for cutting-in direction of motion cutting tool；ZwFor the removal rate of workpiece material in the unit time, Zw=π nfap(dm+ap), the speed of mainshaft (r/s) when n is lathe grinding, amount of feeding when f is lathe grinding, apCutting depth when for lathe grinding, dmFor the diameter of workpiece material after lathe grinding.Cutting power can be better anticipated in the present invention, design machine tool element, and optimizing technology parameters are high with actual coincidence rate.
Description
Technical field
The invention belongs to metal cutting process technical fields, relate in particular to a kind of based on the calculating of unit cutting energy coefficient
The method of turning power.
Background technique
Component of machine is connected with the motor of work can make component movement or be deformed, and consumption electric energy is converted into machine
Tool energy (kinetic energy or potential energy).Metal cutting process drives workpiece (cutter) movement simultaneously using motor and cutter (workpiece) does phase
Movement is achieved the purpose that remove workpiece material.Turning, milling, drilling etc. be all done relative motion using workpiece and cutter come
Achieve the purpose that remove material.Usual material is softer, and cutter is sharper, and cutting parameter is bigger, removes the material institute of same volume
The energy of consumption is smaller.Cutting power is consumed cutting energy in the unit time.Cutting power is to carry out machine tool structure part
Design, the important evidence of machine motor selection.
Think in turning process that lathe tool and workpiece have in direction of primary motion and direction of feed motion based on kinematic knowledge
Relative motion, turning power calculation algorithms think that the cutting energy consumption of lathe is mainly consumed in direction of primary motion and feed motion side
To P=(F as shown in formulacvc+Ffnf/1000)×10-3KW, the F in formulacIt is main cutting speed, vcIt is main cutting speed, FfIt is
Main cutting speed, n are the revolving speeds of workpiece each second, and f is the amount of feeding of cutter opposite piece rotation.Metal cutting process is one
The process of high speed and high pressure, cutting tool passes through to do relative motion with after workpiece contact, to be more than the high pressure of material yield strength
Material is dynamically removed at high speed, reaches the standard of processing request.In turning process for the ease of discrimination cutting force, mainly by vehicle
It cuts power and is decomposed into direction of primary motion cutting force as shown in Figure 1, direction of feed motion cutting force and cutting-in direction of motion cutting force.
There will be energy consumption in cutting forced direction according to mechanical knowledge, also have the consumption of power.Traditional turning power meter
The power for having ignored the cutting-in direction of motion is calculated, also using kinematic method to calculate the power of direction of feed motion obviously cannot be quasi-
Cutting power really is estimated, it is accurate to calculate the problem that turning power is one of urgent need to resolve.
Summary of the invention
In view of the deficiencies of the prior art, the purpose of the present invention is to provide one kind calculates turning based on unit cutting energy coefficient
Function is divided into three directions: principal cutting movement direction, feed motion side according to the movement of turning process by the method for power, this method
To with the cutting-in direction of motion.
The purpose of the present invention is what is be achieved by following technical proposals.
A method of turning power being calculated based on unit cutting energy coefficient, turning power P is P=Pc+Pf+Pp, wherein
The PcFor the power in principal cutting movement direction, Pc=SCEcZw, the SCEcFor the unit in principal cutting movement direction
Cutting energy coefficient；
PfFor the power of direction of feed motion, Pf=SCEfZw, SCEfUnit bodies are removed for direction of feed motion cutting tool
Energy needed for product workpiece material；
PpFor the power of the cutting-in direction of motion, Pp=SCEpZw, SCEpUnit bodies are removed for cutting-in direction of motion cutting tool
Energy needed for product workpiece material；
The ZwFor the removal rate of workpiece material in the unit time, Zw=π nfap(dm+ap), main shaft turns when n is lathe grinding
Fast (r/s), amount of feeding when f is lathe grinding, apCutting depth when for lathe grinding, dmFor workpiece material after lathe grinding
Diameter.
In the above-mentioned technical solutions, the SCEcFor the ratio of main cutting force and the area of cut.
In the above-mentioned technical solutions, the SCEfFor the ratio of centripetal force and the area of cut.
In the above-mentioned technical solutions, the SCEpFor the ratio of cutting-in drag and the area of cut.
Compared with the prior art, the beneficial effects of the method for the present invention are as follows: cutting power can be better anticipated, design machine
Bed components, optimizing technology parameters are high with actual coincidence rate.
Detailed description of the invention
Metal turning power (power) decomposition diagram when Fig. 1 is size.
Specific embodiment
Technical solution of the present invention is further illustrated combined with specific embodiments below.
SCEcFor the ratio of main cutting force and the area of cut, SCEfFor the ratio of centripetal force and the area of cut, SCEpFor cutting-in
The ratio of drag and the area of cut, specific source is referring to Xian Wu, Liang Li, Meng Zhao, Ning He
Experimental investigation of specific cutting energy and surface quality
based on negative effective rake angle in micro turning,Int J Adv Manuf
Technol(2016)82:1941–1947.
Embodiment 1
Based on the method that unit cutting energy coefficient calculates turning power, turning power is P=Pc+Pf+Pp, wherein
PcFor the power in principal cutting movement direction, Pc=SCEcZw, SCEcFor the unit cutting energy system in principal cutting movement direction
Number；
PfFor the power of direction of feed motion, Pf=SCEfZw, SCEfUnit bodies are removed for direction of feed motion cutting tool
Energy needed for product workpiece material；
PpFor the power of the cutting-in direction of motion, Pp=SCEpZw, SCEpUnit bodies are removed for cutting-in direction of motion cutting tool
Energy needed for product workpiece material；
ZwFor the removal rate of workpiece material in the unit time, Zw=π nfap(dm+ap), speed of mainshaft when n is lathe grinding
(r/s), amount of feeding when f is lathe grinding, apCutting depth when for lathe turning, dmFor workpiece material after lathe grinding
Diameter.
Embodiment 1 is by taking typical cylindrical turning as an example, it is assumed that workpiece material blank diameterFor 99mm, workpiece material is aluminium conjunction
Gold, cutting-in ap=0.5mm, amount of feeding f=0.1mm/r, speed of mainshaft n=16.7r/s, 3 component when cutting: main cutting fortune
The power F in dynamic directionc=52N, the power F of the cutting-in direction of motionp=26N, the power F of direction of feed motionf=19N, work after lathe grinding
The diameter of part material is 98mm, SCEc=Fc/(fap)=1.004J/mm3, SCEf=Ff/(fap)=0.52J/mm3, SCEp=
Fp/(fap)=0.38J/mm3。
Traditional turning power calculation algorithms do not include the power of the cutting-in direction of motion, according to traditional turning power calculation algorithms
It is calculated as cutting power Pc=0.27kW, feed power Pf=0.0003kW and PpThe general power of=0kW, consumption can be denoted as
0.27kW。
The method according to the invention is calculated, Pc=0.26kW, feed power Pf=0.134kW, cutting-in power Pp=
0.098kW, the general power of consumption are 0.492kW.It can be seen that method used in the present invention is in principal cutting movement direction master calculated
The power results in cutting movement direction are compared smaller with conventional method, but error is less than 4%, the power of direction of feed motion and
The result difference that the power ratio conventional method of the cutting-in direction of motion calculates is larger, and the consumption general power obtained from master on off is
0.548kW is far longer than traditional cutting power calculation method 0.27kW, and method of the invention more meets actual result.From calculating
As a result it as it can be seen that the energy consumption in principal cutting movement direction is mainly consumed in a manner of preventing workpiece material from rotating when turning, and feeds
The energy consumption of the direction of motion and the cutting-in direction of motion is mainly consumed in a manner of making that compressive deformation and bending deformation occurs.
Illustrative description has been done to the present invention above, it should explanation, the case where not departing from core of the invention
Under, any simple deformation, modification or other skilled in the art can not spend the equivalent replacement of creative work equal
Fall into protection scope of the present invention.
Claims (4)
1. a kind of method for calculating turning power based on unit cutting energy coefficient, which is characterized in that turning power P is P=Pc+Pf+
Pp, wherein
The PcFor the power in principal cutting movement direction, Pc=SCEcZw, the SCEcIt is cut for the unit in principal cutting movement direction
It can coefficient；
PfFor the power of direction of feed motion, Pf=SCEfZw, SCEfUnit volume work is removed for direction of feed motion cutting tool
Energy needed for part material；
PpFor the power of the cutting-in direction of motion, Pp=SCEpZw, SCEpUnit volume work is removed for cutting-in direction of motion cutting tool
Energy needed for part material；
The ZwFor the removal rate of workpiece material in the unit time, Zw=π nfap(dm+ap), speed of mainshaft when n is lathe grinding, f
Amount of feeding when for lathe grinding, apCutting depth when for lathe grinding, dmFor the diameter of workpiece material after lathe grinding.
2. the method according to claim 1, wherein the SCEcFor the ratio of main cutting force and the area of cut.
3. method according to claim 1 or 2, which is characterized in that the SCEfFor the ratio of centripetal force and the area of cut.
4. according to the method described in claim 3, it is characterized in that, the SCEpFor the ratio of cutting-in drag and the area of cut.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810425412 | 2018-05-07 | ||
| CN2018104254128 | 2018-05-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110449992A true CN110449992A (en) | 2019-11-15 |
Family
ID=68480904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910286014.7A Pending CN110449992A (en) | 2018-05-07 | 2019-04-10 | The method for calculating turning power based on unit cutting energy coefficient |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110449992A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104636597A (en) * | 2014-12-30 | 2015-05-20 | 沈阳机床(集团)有限责任公司 | General numerically-controlled-lathe full-torque cutting detection and evaluation method based on MRR |
| CN105866524A (en) * | 2016-04-13 | 2016-08-17 | 山东理工大学 | Online detecting method for specific energy of net removed material in machining process of numerical control milling machine |
| CN108596158A (en) * | 2018-05-15 | 2018-09-28 | 同济大学 | A kind of Surface Roughness in Turning prediction technique based on energy consumption |
| CN108673241A (en) * | 2018-07-30 | 2018-10-19 | 山东理工大学 | A kind of cutting stage numerically-controlled machine tool Calculation Method of Energy Consumption |
-
2019
- 2019-04-10 CN CN201910286014.7A patent/CN110449992A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104636597A (en) * | 2014-12-30 | 2015-05-20 | 沈阳机床(集团)有限责任公司 | General numerically-controlled-lathe full-torque cutting detection and evaluation method based on MRR |
| CN105866524A (en) * | 2016-04-13 | 2016-08-17 | 山东理工大学 | Online detecting method for specific energy of net removed material in machining process of numerical control milling machine |
| CN108596158A (en) * | 2018-05-15 | 2018-09-28 | 同济大学 | A kind of Surface Roughness in Turning prediction technique based on energy consumption |
| CN108673241A (en) * | 2018-07-30 | 2018-10-19 | 山东理工大学 | A kind of cutting stage numerically-controlled machine tool Calculation Method of Energy Consumption |
Non-Patent Citations (1)
| Title |
|---|
| 张奎: "制造单元工艺生命周期清单数据建模", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20170100781A1 (en) | High-speed precision interrupted ultrasonic vibration cutting method | |
| CN102430892A (en) | Method for machining aluminum base silicon carbide structure part of aerospace gyroscope | |
| CN107931678A (en) | A kind of half casing taper surface high speed milling method of high temperature alloy point | |
| CN101804478A (en) | Compound milling cutter for machining fir tree type blade root wheel groove | |
| CN201558984U (en) | Helical end milling cutter with wave-shaped cutting face | |
| CN103286389B (en) | The externally threaded processing method of high-speed turning bull large pitch shallow/deep groove type | |
| CN109500439A (en) | A kind of stainless steel casing deep cavity shape slot high-efficiency milling process tool and method | |
| CN103203491A (en) | Method for processing external spiral slot with large screw pitch by numerically controlled lathe and process device | |
| CN101954492B (en) | Processing technology for excircle of high-efficiency motor rotor | |
| CN202241632U (en) | Annular cutter pulling-out device for processing graphite products | |
| CN110449992A (en) | The method for calculating turning power based on unit cutting energy coefficient | |
| CN202555883U (en) | Waved-edge milling cutter with different helical angles | |
| CN203281964U (en) | Efficient processing end-milling cutter | |
| CN202317325U (en) | Single-edge trapezoidal thread milling cutter | |
| CN202461730U (en) | Trapezoid thread milling cutter | |
| JPH09192930A (en) | Thread cutter | |
| CN112676766B (en) | Efficient machining method for titanium alloy shell parts based on zero programming | |
| CN202317272U (en) | Processing rasper for compensation tank of cycloid hydraulic motor stator | |
| CN202427984U (en) | Boring chamfer cutter | |
| CN102922340A (en) | Machining fixture | |
| CN202155610U (en) | Adjusting device for high-speed reamer with HSK handle | |
| CN206779536U (en) | A kind of modular gang tool | |
| Isobe et al. | Improvement of drill life for nickel super alloy by ultrasonic vibration machining with minimum quantity lubrication | |
| CN206253701U (en) | One kind shaping drill mill | |
| CN206122776U (en) | Three swords sword for aluminium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191115 |
|
| RJ01 | Rejection of invention patent application after publication |