CN103737430B - A kind of strain-type rotates two component Milling Force sensors - Google Patents
A kind of strain-type rotates two component Milling Force sensors Download PDFInfo
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- CN103737430B CN103737430B CN201310675119.4A CN201310675119A CN103737430B CN 103737430 B CN103737430 B CN 103737430B CN 201310675119 A CN201310675119 A CN 201310675119A CN 103737430 B CN103737430 B CN 103737430B
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- 238000003801 milling Methods 0.000 title claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 20
- 230000035945 sensitivity Effects 0.000 claims abstract description 13
- 230000008878 coupling Effects 0.000 claims abstract description 5
- 238000010168 coupling process Methods 0.000 claims abstract description 5
- 238000005859 coupling reaction Methods 0.000 claims abstract description 5
- 230000004927 fusion Effects 0.000 claims abstract description 4
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 3
- 239000011888 foil Substances 0.000 claims description 15
- 238000005520 cutting process Methods 0.000 description 10
- 239000003795 chemical substances by application Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011814 protection agent Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
Classifications
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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
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
- B23Q17/0952—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool during machining
-
- 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
- B23Q2717/00—Arrangements for indicating or measuring
- B23Q2717/006—Arrangements for indicating or measuring in milling machines
Abstract
A kind of strain-type rotates two component Milling Force sensors, comprises agent structure, and connection lid and agent structure central axle portion carry out interference fit, and periphery is threaded, and is threaded between front-end architecture and connection lid; Front-end architecture is connected to form by anterior HSK type handle of a knife head and rear portion disk, and handle of a knife head realizes the connection of force cell and machine tool chief axis, and rear portion disk realizes and connects the seamless coupling covered; Termination, agent structure one end is thin cylinder, and the other end is cutter holding, and middle part is provided with support disk, and thin cylinder is the flexible member of whole sensor, has high sensitivity, and thin cylinder realizes the fusion of sensor overall structure rigidity and sensitivity; Support disk supports the modules of sensor, cutter holding mounting cutter; Metal strain plate pasted by thin cylinder, connects into Hui Sitong full bridge formation, in order to measure axial force F z and main shaft moment M, there is the advantages such as highly sensitive, antijamming capability is strong, highly versatile.
Description
Technical field
The present invention relates to intelligent equipment manufacturing technical field, particularly a kind of strain-type rotates two component Milling Force sensors.
Background technology
The advantages such as high-speed cutting and High-speed machining have that production efficiency is high, good processing accuracy, cutter life are long, occupy indispensable status in recent years in modern precision, Ultra-precision Turning.In high-speed cutting and High-speed machining process, the size of cutting force suffered by cutter and the variation tendency of cutting force and tool wear, between breakage and durability, there is obvious relation, directly affect the quality of crudy.Therefore, realize seeming particularly important to the Real-Time Monitoring of cutting force in process.
In order to monitor the cutting force of lathe, analysis and control, dissimilar dynamometer is come out one after another.First be mechanical type and fluid pressure type cutting dynamometer.Mechanical force instrument is a kind of pure displacement meter, and the contradiction of sensitivity and rigidity cannot solve, and can not measure real cutting force.Fluid pressure type dynamometer is owing to being subject to the complexity of self structure and the restriction of Static stiffness, and its intrinsic frequency is very low, can not measure dynamic force.Electric capacity, inductance type dynamometer, principle utilizes the movement of capacitor plate spacing or inductance core that elastomeric displacement is converted to the change of electric capacity or inductance, and embody in the mode of the signal of telecommunication, and essence remains a kind of displacement meter.There is the shortcomings such as poor anti jamming capability, static Linear Error be large in electric capacity, inductance type dynamometer.The piezoelectric force instrument come out in recent years take piezo-electric crystal as sensing element, and it is very high to measure dynamic force sensitivity, but also exists and can not measure a series of weak points such as static force, force site error are large, expensive.
The principle of strain gauge dynamometer is wire when there is mechanically deform under external force, and its resistance will change, then is transformed into the signal of telecommunication by electric bridge and exports.Strain gauge dynamometer has many good qualities: structure is simple, and highly sensitive, cost performance is good, and antijamming capability is strong.For strain gauge dynamometer, reasonably select elastomeric structure and dynamometry mode, effectively can solve the contradiction between rigidity and sensitivity.
Summary of the invention
In order to overcome the defect that above-mentioned prior art exists, the object of the present invention is to provide a kind of strain-type to rotate two component Milling Force sensors, there is the advantages such as highly sensitive, antijamming capability is strong, highly versatile.
To achieve these goals, the technical solution used in the present invention is:
A kind of strain-type rotates two component Milling Force sensors, comprises agent structure 3, and connection lid 2 and agent structure 3 central axle portion carry out interference fit, and periphery is threaded, and is threaded between front-end architecture 1 and connection lid 2;
Described front-end architecture 1, connected to form by anterior HSK type handle of a knife head 1a and rear portion disk 1b, handle of a knife steals the connection that 1a realizes force cell and machine tool chief axis, and rear portion disk 1b realizes the seamless coupling with connection lid 2;
Described agent structure 3, its termination, one end is thin cylinder 3a, and the other end is cutter holding 3c, middle part is provided with support disk 3b; thin cylinder 3a is the flexible member of whole sensor, has high sensitivity, and thin cylinder 3a realizes the fusion of sensor overall structure rigidity and sensitivity; Support disk 3b supports the modules of sensor, cutter holding 3c mounting cutter; on thin cylinder 3a axially, vertical axial; and positive and negative 45 degree are axially pasted with eight metal strain plates 4; be divided into two groups; connect into Hui Sitong full bridge formation respectively, in order to measure axial force F z and main shaft moment M.
The described long 8mm of thin cylinder 3a, thick 1.5mm, central diameter 35mm.
Described support disk 3b external diameter 150mm, internal diameter 40mm.
Described metal strain plate 4 is foil resistance foil gauge, and metal forming is made palisade, and is clipped in two-layer dielectric base and makes, and is then connected with foil gauge wire grid by tinned wird, as the lead-out wire of foil gauge.
Compared with prior art the invention has the advantages that: adopt thin cylinder 3a as the flexible member of sensor, the contradiction between rigidity and sensitivity can be solved very well.Anterior 1a adopts HAK-A series handle of a knife interface, ensure that the general connection of sensor and high-speed rotary main shaft.Cutter holding 3c can install different cutters according to the actual requirements.Overall structure adopts the pattern of assembled package, both ensure that the extensive versatility of sensor, and can realize again dismantling at any time, assembling and change parts.Adopt Wheatstone bridge simultaneously, there is good temperature stability.The present invention both can measure static force, was applicable to again the On-line sampling system of dynamic force, have high sensitivity, good rigidity, highly versatile, cost low, safeguard the advantages such as simple.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of sensor of the present invention.
Fig. 2 is that the overall structure of sensor of the present invention partly cuts open schematic diagram.
Fig. 3 is each STRUCTURE DECOMPOSITION schematic diagram of sensor of the present invention.
Fig. 4 is thin cylinder 3a outer surface analytic unit schematic diagram of the present invention.
Thin cylinder 3a of the present invention pastes metal strain plate schematic diagram to Fig. 5.
Fig. 6 is foil metal strain plate 4 structural representation in the present invention.
Fig. 7 is that in the present invention, metal strain plate connects into Hui Sitong full-bridge schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, structure & working mechanism of the present invention is described in detail.
See figures.1.and.2, a kind of strain-type rotates two component Milling Force sensors, comprise sensor body structure 3, connection lid 2 and agent structure 3 central axle portion carry out interference fit, and periphery is threaded, be threaded by screw between front-end architecture 1 and connection lid 2, overall structure forms one can coupling main shaft, mounting cutter, again can the shank for cutting force measuring of Real-Time Monitoring High Rotation Speed Milling Force.
See Fig. 3, described front-end architecture 1, connected to form by anterior HSK type handle of a knife head 1a and rear portion disk 1b, handle of a knife head 1a realizes the connection of force cell and machine tool chief axis, there is versatility widely, rear portion disk 1b realizes, with the seamless coupling of connection lid 2, having ensured integrally-built rigidity and axiality.
See Fig. 3, described connection lid 2, its end 2a achieves and is threaded with the rear portion disk 1b of end construction 1, and its end 2b achieves again with the interference fit of agent structure 3 and is threaded, and has the effect of sensor chip in protection agent structure 3 simultaneously.
See Fig. 3, described agent structure 3, its termination, one end is thin cylinder 3a, the other end is cutter holding 3c, middle part is provided with support disk 3b; thin cylinder 3a is the flexible member of whole sensor, has high sensitivity, and thin cylinder 3a realizes the fusion of sensor overall structure rigidity and sensitivity; Support disk 3b supports the modules of sensor, realizes the wireless transmission of ess-strain signal; Cutter holding 3c mounting cutter, ensure that extensive versatility.
The described long 8mm of thin cylinder 3a, thick 1.5mm, central diameter 35mm.
Described support disk 3b external diameter 150mm, internal diameter 40mm.
See Fig. 5, described thin cylinder 3a pastes altogether eight metal strain plates 4, in order to measure axial force F z and main shaft moment M.First group of four metal strain plate 4, axially pastes with vertical axial, mainly for measuring the direct stress that axial force F z causes.Second group of four metal strain plate 4, axially pastes, mainly in order to measure the shearing stress that main shaft moment M causes along positive and negative 45 degree.
See Fig. 6, described foil metal strain plate 4 is as on the plastic sheeting 4a of dielectric base, sticks the sensitive grid 4b that metal foil is made, cover one deck insulation film 4c above and make laminate structure, each laminated using epoxy resin as adhesive, be connected with foil gauge wire grid with tinned wird, connect into into Wheatstone bridge, as foil gauge lead-out wire 4d, foil metal strain plate 4 is as the element experiencing stress, and have lightweight, volume is little, highly sensitive, the plurality of advantages such as good insulating.
See Fig. 7, described first group of four metal strain plate 4, axially arranges with vertical axial and pastes, connect into Hui Sitong full-bridge, measure the direct stress that axial force F z causes; Described second group of four metal strain plate 4, along positive and negative 45 degree of axial arranged stickups, connects into Hui Sitong full-bridge, measures the shearing stress that main shaft moment M causes.
Operation principle of the present invention is:
During use, see Fig. 1, fore-end 1 and the machine tool chief axis of integral sensors are connect, ensures the synchronous axial system of force cell and machine tool chief axis.Front-end architecture 1 is connected as a whole with primary structure 3 by connection lid 2, with machine tool chief axis High Rotation Speed, has good rigidity and axiality.Primary structure 3 is installed cutter, ensures completing of normal cutting.
See Fig. 5, cutter, when High Rotation Speed, bears axial force F z and main shaft moment M effect simultaneously, is the component that a pressurized turns round combined deformation.For realizing the measurement of axial force F z and main shaft moment M, the strain under axial force F z and main shaft moment M effect should be recorded respectively.
See Fig. 4, the cell cube E got on thin cylinder 3a surface carries out force analysis.Cell cube E can be decomposed into E1 and E2.Cell cube E1 only by the shear stress that main shaft moment M effect produces, is in pure shear stress state.From stress analysis, becoming on positive and negative 45 degree of directions with axis to there is minimum and maximum principal stress, its absolute value is equal to maximum shear stress.
Record 45 degree of principal stresses axially with foil metal strain plate, be maximum shear stress, then main shaft moment M can be tried to achieve according to the relational expression between shear stress and moment.
Cell cube E2 produces compression stress ot under axial force Fz
pressure, be in uniaxial stressed state.From stress analysis, cross section also exists maximum (normal) stress.
Becoming on the cross section in positive and negative 45 degree of directions to act on the identical direct stress of symbol with axis, its numerical value equals axial stress σ
pressurehalf, the namely half of maximum (normal) stress.
According to the stress analysis of said units body E, can by metal strain plate as described below mode arrange, namely by axial, the vertical axial of the axle with cutter, and positive and negative 45 degree are axially carried out assembled package, reach simultaneously to the object that axial force F z and main shaft moment M measures.
Claims (1)
1. a strain-type rotates two component Milling Force sensors, comprise agent structure (3), it is characterized in that: connection lid (2) and agent structure (3) central axle portion carry out interference fit, and periphery is threaded, be threaded between front-end architecture (1) and connection lid (2);
Described front-end architecture (1), connected to form by anterior HSK type handle of a knife head (1a) and rear portion disk (1b), handle of a knife head (1a) realizes the connection of force cell and machine tool chief axis, and rear portion disk (1b) realizes the seamless coupling covering (2) with connection;
Described agent structure (3), its termination, one end is thin cylinder (3a), the other end is cutter holding (3c), middle part is provided with support disk (3b); thin cylinder (3a) is the flexible member of whole sensor; have high sensitivity, and thin cylinder (3a) realizes the fusion of sensor overall structure rigidity and sensitivity; Support disk (3b) supports the modules of sensor, cutter holding (3c) mounting cutter; on thin cylinder (3a) axially, vertical axial; and positive and negative 45 degree are axially pasted with eight metal strain plates (4); be divided into two groups; connect into Hui Sitong full bridge formation respectively, in order to measure axial force F z and main shaft moment M;
Described thin cylinder (3a) long 8mm, thick 1.5mm, central diameter 35mm;
Described support disk (3b) external diameter 150mm, internal diameter 40mm;
Described metal strain plate (4) is foil resistance foil gauge, and metal forming is made palisade, and is clipped in two-layer dielectric base and makes, and is then connected with foil gauge wire grid by tinned wird, as the lead-out wire of foil gauge.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310675119.4A CN103737430B (en) | 2013-12-11 | 2013-12-11 | A kind of strain-type rotates two component Milling Force sensors |
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| CN201310675119.4A CN103737430B (en) | 2013-12-11 | 2013-12-11 | A kind of strain-type rotates two component Milling Force sensors |
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| CN103737430A CN103737430A (en) | 2014-04-23 |
| CN103737430B true CN103737430B (en) | 2016-04-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104880272B (en) * | 2015-06-15 | 2017-05-03 | 天津商业大学 | Adjustable gear-hob cutting force measurement device |
| CN105563235B (en) * | 2016-02-03 | 2017-06-27 | 吉林大学 | Piezoelectric type full angle load detecting device |
| CN106181578B (en) * | 2016-07-28 | 2018-08-21 | 西安交通大学 | A kind of rotary milling force snesor measuring torque and axial force |
| CN109269705B (en) * | 2018-10-26 | 2021-01-19 | 大连理工大学 | Wireless transmission piezoelectric type four-component dynamometer device |
| CN110606399A (en) * | 2019-03-19 | 2019-12-24 | 蚌埠学院 | Wide-width surface tension sensor and tension detection method |
| CN110281078B (en) * | 2019-06-28 | 2021-02-09 | 哈尔滨理工大学 | Multi-parameter sensor for tip of boring blade |
| CN113798921A (en) * | 2021-10-18 | 2021-12-17 | 电子科技大学 | Milling force measuring instrument based on film strain gauge |
| CN114549647B (en) * | 2022-04-22 | 2022-08-12 | 成都飞机工业（集团）有限责任公司 | Method for detecting placement orientation of HSK knife handle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0276667A (en) * | 1988-09-02 | 1990-03-16 | Kelch Gmbh & Co Werkzeug Mas Fab | Fitting-force measuring device for tool calmping device |
| CN1103343A (en) * | 1993-11-27 | 1995-06-07 | 北京航空航天大学 | Mainshaft installed torque remote-measuring cutter handle |
| US5783751A (en) * | 1996-12-31 | 1998-07-21 | Industrial Technology Research Institute | Cutting force sensor in the form of a turret locking screw |
| CN2360210Y (en) * | 1998-10-23 | 2000-01-26 | 嘉兴市中等专业学校 | Drilling-cutting ergograph for normal lathe |
| CN201338211Y (en) * | 2008-12-11 | 2009-11-04 | 天水红山试验机有限公司 | Intelligent sensor of numerical control machine |
| CN101612712A (en) * | 2009-07-10 | 2009-12-30 | 同济大学 | Rotary dynamic milling torque measurement instrument |
-
2013
- 2013-12-11 CN CN201310675119.4A patent/CN103737430B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0276667A (en) * | 1988-09-02 | 1990-03-16 | Kelch Gmbh & Co Werkzeug Mas Fab | Fitting-force measuring device for tool calmping device |
| CN1103343A (en) * | 1993-11-27 | 1995-06-07 | 北京航空航天大学 | Mainshaft installed torque remote-measuring cutter handle |
| US5783751A (en) * | 1996-12-31 | 1998-07-21 | Industrial Technology Research Institute | Cutting force sensor in the form of a turret locking screw |
| CN2360210Y (en) * | 1998-10-23 | 2000-01-26 | 嘉兴市中等专业学校 | Drilling-cutting ergograph for normal lathe |
| CN201338211Y (en) * | 2008-12-11 | 2009-11-04 | 天水红山试验机有限公司 | Intelligent sensor of numerical control machine |
| CN101612712A (en) * | 2009-07-10 | 2009-12-30 | 同济大学 | Rotary dynamic milling torque measurement instrument |
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Address after: 710077 1 industrial buildings, 1 floors, 10101 rooms, two industrial buildings in the east side of No. 85, No. 3 Road, Xi'an, Shaanxi Patentee after: Xi'an Wan Wei machinery manufacturing Limited by Share Ltd Address before: 710065 Shaanxi city of Xi'an province high tech Zone Fenghui Road No. 36 Building No. 1 room 10704 Oak Street Patentee before: Xi'an Wan Wei tool Limited by Share Ltd |
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Denomination of invention: Strain type rotary two-component milling force sensor Effective date of registration: 20200608 Granted publication date: 20160413 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: XI'AN WINWAY MACHINERY Co.,Ltd. Registration number: Y2020990000574 |
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