CN103737430A - Strain type rotary two-component milling force sensor - Google Patents
Strain type rotary two-component milling force sensor Download PDFInfo
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- CN103737430A CN103737430A CN201310675119.4A CN201310675119A CN103737430A CN 103737430 A CN103737430 A CN 103737430A CN 201310675119 A CN201310675119 A CN 201310675119A CN 103737430 A CN103737430 A CN 103737430A
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- 238000003801 milling Methods 0.000 title claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 20
- 230000035945 sensitivity Effects 0.000 claims abstract description 14
- 239000011888 foil Substances 0.000 claims description 11
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000004927 fusion Effects 0.000 claims description 3
- 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 5
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 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
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005259 measurement Methods 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
- 239000011814 protection agent Substances 0.000 description 1
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
A strain type rotary two-component milling force sensor comprises a body structure. A binding cover is in interference fit with the central axis portion of the body structure, and is in threaded connection with the periphery of the body structure, and a front-end structure is in threaded connection with the binding cover. The front-end structure is formed by connecting a front HSK tool handle head and a rear disc, a force measuring sensor and a machine tool spindle are connected through the tool handle head, and the rear disc and the binding cover are in seamless connection. A thin-wall cylinder is arranged at one end of the body structure, a tool clamp is arranged at the other end of the body structure, a supporting disc is arranged in the middle of the body structure, the thin-wall cylinder is an elastic element of the whole sensor and is very high in sensitivity, and the overall structure rigidity and the sensitivity of the sensor are combined through the thin-wall cylinder. The supporting disc supports the modules of the sensor, and the tool clamp is used for mounting a tool. A metal strain sheet is pasted on the thin-wall cylinder, a Wheatstone full-bridge mode is formed in a connecting mode, and the sensor is used for measuring axial force Fz and spindle torque M, and has the advantages of being high in sensitivity, strong in anti-interference capacity, strong in universality and the like.
Description
Technical field
The present invention relates to intelligence equipment manufacturing technology 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 have occupied indispensable status in recent years in modern precision, ultraprecise processing.In high-speed cutting and High-speed machining process, between the size of the suffered cutting force of cutter and the variation tendency of cutting force and tool wear, breakage and durability, exist obvious relation, directly affect the quality of crudy.Therefore, in process, realize the Real-Time Monitoring of cutting force is seemed to particularly important.
For the cutting force to lathe is monitored, analysis and control, dissimilar dynamometer is come out one after another.First be mechanical type and fluid pressure type cutting dynamometer.Mechanical type dynamometer 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 restriction of complexity and the quiet rigidity of self structure, and its intrinsic frequency is very low, can not measure dynamic force.Electric capacity, inductance type dynamometer, principle is to utilize the mobile of capacitor plate spacing or inductance core that elastomeric displacement is converted to the variation of electric capacity or inductance, and embodies in the mode of the signal of telecommunication, 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 piezoelectricity dynamometer coming out in recent years be take piezo-electric crystal as sensing element, measured dynamic force sensitivity very high, but existed 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 while there is mechanically deform under external force, and its resistance will change, then by electric bridge, is transformed into the signal of telecommunication and exports.Strain gauge dynamometer has many good qualities: simple in structure, highly sensitive, cost performance is good, and antijamming capability is strong.For strain gauge dynamometer, reasonably select elastomeric structure and dynamometry mode, can effectively solve the contradiction between rigidity and sensitivity.
Summary of the invention
The defect existing in order to overcome above-mentioned prior art, the object of the present invention is to provide a kind of strain-type to rotate two component Milling Force sensors, has the advantages such as highly sensitive, antijamming capability strong, highly versatile.
To achieve these goals, the technical solution used in the present invention is:
Strain-type rotates two component Milling Force sensors, comprises agent structure 3, connect cover 2 and agent structure 3 center axial regions carry out interference fit, and periphery is threaded, front-end architecture 1 and connection are threaded between covering 2;
Described front-end architecture 1, is connected to form by anterior HSK type handle of a knife head 1a and rear portion disk 1b, and handle of a knife is stolen the connection that 1a realizes force cell and machine tool chief axis, and rear portion disk 1b realizes and connects the seamless coupling that covers 2;
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, cutter holding 3c mounting cutter; thin cylinder 3a is upper along axial, vertical axial; and positive and negative 45 degree are axially pasted with eight metal strain plates 4; be divided into two groups; connect into respectively Hui Sitong full-bridge form, 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 to palisade, and is clipped in two-layer dielectric base and makes, and then by tinned wird, is connected with foil gauge wire grid, 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, can fine solution rigidity and sensitivity between contradiction.Anterior 1a adopts HAK-A series handle of a knife interface, has guaranteed 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, has both guaranteed the extensive versatility of sensor, can realize at any time and dismantle, assembles and change parts again.Adopt Wheatstone bridge simultaneously, there is good temperature stability.The present invention both can measure static force, was applicable to again the online of dynamic force and measured in real time, 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 is partly cutd 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.
Fig. 5 is the upper metal strain plate schematic diagram of pasting of thin cylinder 3a of the present invention.
Fig. 6 is paper tinsel formula metal strain plate 4 structural representations in the present invention.
Fig. 7 is that in the present invention, metal strain plate connects into Hui Sitong full-bridge schematic diagram.
The specific embodiment
Below in conjunction with accompanying drawing, structure of the present invention and operation principle are described in detail.
See figures.1.and.2, a kind of strain-type rotates two component Milling Force sensors, comprise sensor body structure 3, connect cover 2 and agent structure 3 center axial regions carry out interference fit, and periphery is threaded, front-end architecture 1 and connecting between cover 2 is threaded by screw, and one of overall structure composition can coupling main shaft, mounting cutter, shank for cutting force measuring that again can Real-Time Monitoring High Rotation Speed Milling Force.
Referring to Fig. 3, described front-end architecture 1, by anterior HSK type handle of a knife head 1a and rear portion disk 1b, connected to form, 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 and connects the seamless coupling that covers 2, has ensured integrally-built rigidity and axiality.
Referring to Fig. 3, described connection lid 2, its end 2a has realized with the rear portion disk 1b of end construction 1 and being threaded, and its end 2b has realized again with the interference fit of agent structure 3 and has been threaded, and has the effect of sensor chip in protection agent structure 3 simultaneously.
Referring to 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, has guaranteed 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.
Referring to Fig. 5, on described thin cylinder 3a, paste 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, pastes the direct stress causing mainly for measuring axial force F z along axial and vertical axial.Second group of four metal strain plate 4, axially pastes along positive and negative 45 degree, is mainly the shearing stress causing in order to measure main shaft moment M.
Referring to Fig. 6, described paper tinsel formula metal strain plate 4 is on the plastic sheeting 4a as dielectric base, sticks the sensitive grid 4b that metal foil is made, cover one deck insulation film 4c above and make laminate structure, using epoxy resin as adhesive for each laminated, with tinned wird, be connected with foil gauge wire grid, connect into into Wheatstone bridge, as foil gauge lead-out wire 4d, paper tinsel formula metal strain plate 4 is as the element of experiencing stress, has lightweightly, and volume is little, highly sensitive, the plurality of advantages such as good insulating.
Referring to Fig. 7, described first group of four metal strain plate 4, arranges and pastes along axial and vertical axial, connects into Hui Sitong full-bridge, measures the direct stress that axial force F z causes; Described second group of four metal strain plate 4, along the axial arranged stickup of positive and negative 45 degree, 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, referring to Fig. 1, the fore-end of integral sensors 1 and machine tool chief axis are connect, guarantee the rotation of synchronizeing of force cell and machine tool chief axis.Connect and to cover 2 and front-end architecture 1 is connected as a whole with primary structure 3, with machine tool chief axis High Rotation Speed, there is good rigidity and axiality.The cutter that is installed on primary structure 3, guarantees completing of normal cutting.
Referring to Fig. 5, cutter, when High Rotation Speed, bears axial force F z and main shaft moment M effect simultaneously, is the member that a pressurized is turned round combined deformation.For realizing the measurement of axial force F z and main shaft moment M, should record respectively the strain under axial force F z and main shaft moment M effect.
Referring to Fig. 4, get the lip-deep cell cube E of thin cylinder 3a and carry out force analysis.Cell cube E can be decomposed into E1 and E2.The shear stress that cell cube E1 is produced by main shaft moment M effect only, in pure shear stress state.From stress analysis, becoming in positive and negative 45 degree directions to exist minimum and maximum principal stress with axial, its absolute value is equal to maximum shear stress.
With paper tinsel formula metal strain plate, record the principal stress of 45 degree on axially, be maximum shear stress, then can try to achieve main shaft moment M according to the relational expression between shear stress and moment.
Cell cube E2 produces compression stress ot under axial force Fz
press, in uniaxial stressed state.From stress analysis, on cross section, exist maximum (normal) stress.
On the cross section with the positive and negative 45 degree directions of axial one-tenth, effect has the direct stress that symbol is identical, and its numerical value equals axial stress σ
presshalf, half of maximum (normal) stress namely.
According to the stress analysis of said units body E, can by metal strain plate as described below mode arrange, by the axle with cutter axially, vertical axial, and positive and negative 45 degree axially carry out assembled package, reach simultaneously the object that axial force F z and main shaft moment M are measured.
Claims (4)
1. a strain-type rotates two component Milling Force sensors, comprise agent structure (3), it is characterized in that: connect lid (2) and agent structure (3) center axial region and carry out interference fit, and periphery is threaded, and between front-end architecture (1) and connection lid (2), is threaded;
Described front-end architecture (1), is connected to form by anterior HSK type handle of a knife head (1a) and rear portion disk (1b), and handle of a knife head (1a) is realized the connection of force cell and machine tool chief axis, and rear portion disk (1b) is realized and the seamless coupling that connects lid (2);
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) is realized the fusion of sensor overall structure rigidity and sensitivity; Support disk (3b) supports the modules of sensor, cutter holding (3c) mounting cutter; thin cylinder (3a) is upper along axial, vertical axial; and positive and negative 45 degree are axially pasted with eight metal strain plates (4); be divided into two groups; connect into respectively Hui Sitong full-bridge form, in order to measure axial force F z and main shaft moment M.
2. a kind of strain-type according to claim 1 rotates two component Milling Force sensors, it is characterized in that: the long 8mm of described thin cylinder (3a), thick 1.5mm, central diameter 35mm.
3. a kind of strain-type according to claim 1 rotates two component Milling Force sensors, it is characterized in that: described support disk (3b) external diameter 150mm, internal diameter 40mm.
4. a kind of strain-type according to claim 1 rotates two component Milling Force sensors, it is characterized in that: described metal strain plate (4) is foil resistance foil gauge, metal forming is made to palisade, and be clipped in two-layer dielectric base and make, then by tinned wird, be connected with foil gauge wire grid, as the lead-out wire of foil gauge.
Priority Applications (1)
| 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 true CN103737430A (en) | 2014-04-23 |
| CN103737430B CN103737430B (en) | 2016-04-13 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880272A (en) * | 2015-06-15 | 2015-09-02 | 天津商业大学 | Adjustable gear-hob cutting force measurement device |
| CN105563235A (en) * | 2016-02-03 | 2016-05-11 | 吉林大学 | Piezoelectric omnidirectional load detection device |
| CN106181578A (en) * | 2016-07-28 | 2016-12-07 | 西安交通大学 | A kind of rotary milling force transducer measuring moment of torsion and axial force |
| CN110281078A (en) * | 2019-06-28 | 2019-09-27 | 哈尔滨理工大学 | A kind of boring blade tip multi-parameter sensor |
| CN110606399A (en) * | 2019-03-19 | 2019-12-24 | 蚌埠学院 | Wide-width surface tension sensor and tension detection method |
| WO2020082415A1 (en) * | 2018-10-26 | 2020-04-30 | 大连理工大学 | Wireless transmission-enabled piezoelectric four-component dynamometer device |
| CN113798921A (en) * | 2021-10-18 | 2021-12-17 | 电子科技大学 | Milling force measuring instrument based on film strain gauge |
| CN114549647A (en) * | 2022-04-22 | 2022-05-27 | 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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| CN101612712A (en) * | 2009-07-10 | 2009-12-30 | 同济大学 | Rotary dynamic milling torque measurement instrument |
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Patent Citations (6)
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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 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880272B (en) * | 2015-06-15 | 2017-05-03 | 天津商业大学 | Adjustable gear-hob cutting force measurement device |
| CN104880272A (en) * | 2015-06-15 | 2015-09-02 | 天津商业大学 | Adjustable gear-hob cutting force measurement device |
| CN105563235A (en) * | 2016-02-03 | 2016-05-11 | 吉林大学 | Piezoelectric omnidirectional load detection device |
| CN105563235B (en) * | 2016-02-03 | 2017-06-27 | 吉林大学 | Piezoelectric type full angle load detecting device |
| CN106181578A (en) * | 2016-07-28 | 2016-12-07 | 西安交通大学 | A kind of rotary milling force transducer measuring moment of torsion and axial force |
| 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 |
| WO2020082415A1 (en) * | 2018-10-26 | 2020-04-30 | 大连理工大学 | Wireless transmission-enabled piezoelectric 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 |
| CN110281078A (en) * | 2019-06-28 | 2019-09-27 | 哈尔滨理工大学 | A kind of boring blade tip multi-parameter sensor |
| 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 |
| CN114549647A (en) * | 2022-04-22 | 2022-05-27 | 成都飞机工业（集团）有限责任公司 | Method for detecting placement orientation of HSK knife handle |
| 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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| CN103737430B (en) | 2016-04-13 |
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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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