CN104191313A - Metal plate circle shear slitting three-way-force measuring device and method thereof - Google Patents

Metal plate circle shear slitting three-way-force measuring device and method thereof Download PDF

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Publication number
CN104191313A
CN104191313A CN201410425021.8A CN201410425021A CN104191313A CN 104191313 A CN104191313 A CN 104191313A CN 201410425021 A CN201410425021 A CN 201410425021A CN 104191313 A CN104191313 A CN 104191313A
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sheet metal
disc
circle shear
cutter
cutting disc
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CN104191313B (en
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阎秋生
曾军
冯文雅
路家斌
潘继生
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Guangdong University of Technology
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Guangdong University of Technology
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q17/00Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/09Arrangements 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
    • B23Q17/0952Arrangements 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
    • B23Q17/099Arrangements 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 by measuring features of the machined workpiece

Abstract

The invention relates to a metal plate circle shear slitting three-way-force measuring device and a method of the measuring device. The measuring device comprises an upper cutting disc, a lower cutting disc, an upper transmission shaft, a lower transmission shaft, a rack and a three-way-force measuring platform. The upper transmission shaft and the lower transmission shaft synchronously rotate in the opposite directions through a servo motor control system, so that circle shear slitting operation is achieved. Force signals generated in the machining process are measured through the three-way-force measuring platform in real time. The measuring device and the method are suitable for circle shear slitting three-way-force measurement of various metal plates with the thickness ranging from 0.1 mm to 3 mm under different technological parameters, new material circle shear slitting technology analysis, circle shear longitudinal slitting machine structure optimization design and the like and can also be used for measurement of segmented roller compression separation acting force. The measuring device is simple in structure and convenient to operate, the problem that metal plate circle shear slitting three-way-force in the prior art is difficult to measure is solved, and the blank of segmented roller rolling separation three-way-force online measurement is filled.

Description

Sheet metal circle shear is cut processing three-dimensional force measuring device and method thereof
Technical field
The invention belongs to sheet metal circle shear and cut processing technique field, relate to and a kind of the sheet metal of wide format is longitudinally cut into one group of certain width for the be shaped metal band of processing of metallic article, be particularly related to sheet metal circle shear and cut force measurement devices and methods therefor, for measuring the three-dimensional of the different metals sheet material under different technical parameters, divide shear force, can measure sheet metal directly cuts and cuts off into band or the specific shearing slip degree of depth and the three-dimensional power of not separated sheet material band, and shear not separated band through the three-dimensional power of minute roll breakage roll extrusion separation.
Background technology
Circle shear is the important processing method of longitudinally cutting the following sheet metal of thickness 3mm, is widely used in the industries such as metallurgy, five metals processing, for the sheet metal of wide format is cut into certain width metal band.By its purposes and structure, can be divided into two large classes: cut edge circle shear and itemize circle shear.One of Specifeca tion speeification of circle shear longitudinal cutting is shearing force, shearing moment and driving power, and the shearing force of cutting disc is the basis of calculating shearing moment and driving power, is the foundation of circle shear longitudinal cutting design.Along with developing rapidly of the industries such as IT, electrician's telecommunication, office machine, hardware, especially the development of application layer progressive die high speed blanking technology, the performance indications such as the dimensional accuracy of metal band, form accuracy, burr have been proposed to requirements at the higher level, therefore need to study mechanism and the deformation rule of cutting process, carry out analysis and the optimization of material stress strain regime, improve quality, stock utilization and productivity ratio etc. that sheet metal is cut, all have great significance in theory with in commercial Application.
Adopt experimental technique to measure sheet metal circle shear and divide shear force, can grasp the impacts of relevant parameter on minute shear force such as circle shear shear forces characteristic and group cutter technique comprehensively, for circle shear, cut mechanics, material and cut the research of fracture mechanism scheduling theory, the intensity and toughness analysis of optimal design longitudinal cutting structure, key components and parts, drive motors type selecting etc., for optimizing the separating and cutting process of new material, provide foundation, improve and cut crudy and economic benefit.
Due to sheet metal circle shear longitudinal cutting complex structure, directly measuring circle shear divides shear force always very difficult, the rarely seen experimental study that has circle shear to divide shear force to measure, therefore the design of most sheet metal longitudinal cutting is mainly calculated as reference with a minute shear force theoretical formula, becomes the technical bottleneck that improves circle shear longitudinal cutting Design and manufacture level.
Summary of the invention
The object of the invention is to propose a kind of sheet metal circle shear and cut processing three-dimensional force measuring device, the present invention can measure in real time sheet metal circle shear and cut the three-dimensional power that adds man-hour, solve sheet metal circle shear in prior art and cut the problem that processing three-dimensional power is difficult to on-line measurement, also can measure not separated band through the three-dimensional power of minute roll breakage roll extrusion separation, fill up the blank of the separated processing of minute roll breakage roll extrusion three-dimensional power on-line measurement.
Another object of the present invention is to propose sheet metal circle shear a kind of simple to operate, convenient and practical and cut the processing method of processing three-dimensional force measuring device.
The present invention is achieved through the following technical solutions: sheet metal circle shear of the present invention is cut processing three-dimensional force measuring device, include cutting disc, lower disc cutter, upload moving axis, lower drive shaft, frame, three-dimensional power measuring table, wherein uploading moving axis is fixed on slide block, slide block is fixed in frame by slide block travel mechanism, and slide block can move up and down along frame right plate, can along uploading moving axis, move left and right in company with frame right plate, upload and on moving axis, at least assemble cutting disc on a group, upper rubber ring pad, upper spacer ring, and be fixed on and upload on moving axis by upper hydraulic locking nut, the both sides that upper spacer ring is arranged on cutting disc and upper rubber ring pad regulate its axial location, on lower drive shaft, at least assemble one group of lower disc cutter, lower rubber ring pad, lower spacer ring, and be fixed on lower drive shaft by lower hydraulic locking nut, the both sides that lower spacer ring is arranged on lower disc cutter and lower rubber ring pad regulate its axial location, uploading moving axis is connected with the output shaft of lower servomotor with upper servomotor respectively with lower drive shaft, upper servomotor is fixed in frame, lower drive shaft and lower servomotor are arranged on three-dimensional power measuring table, upper servomotor is connected with servo control system with lower servomotor, servo control system is controlled two servomotors drives and is uploaded moving axis and the rotation of lower drive shaft synchronous backward, realizes with the circle shear of producing actual identical operating mode and cuts processing, three-dimensional power measuring table measures the three-dimensional active force that lower disc cutter mounted thereto and lower drive shaft are subject at cutting process, and three-dimensional power measuring table is connected with force signal treatment system.
Sheet metal circle shear of the present invention is cut the processing method of processing three-dimensional force measuring device, comprises following method:
1) sheet metal only carries out circle shear and cuts and add man-hour, cutting disc processing adopts axially positive gap width, negative clearance group cutter radially, sheet metal produces plastic deformation along the relative slippage of sheet metal thickness direction under the effect of upper cutting disc cutting edge and lower disc cutter cutting edge, because share zone, the axially positive gap sheet material of circle shear forms after crackle expansion run through under action of pulling stress, causes the separated metal band that forms of sheet material;
2) sheet metal successively carries out circle shear while cutting processing and minute roll breakage rolling and processing, cutting disc adopts axial negative clearance value, radially positive dwell set cutter, when the sheet metal upper cutting disc of process and lower disc cutter, because axial negative clearance share zone sheet material its certain thickness material through-thickness under the effect of compression of circle shear is cut, but do not crack, formation through-thickness staggers but still sticky being linked togather and unseparated metal band mutually.Dismounting cutting disc, a minute roll breakage is installed, lightning strip band is not carried out to disjunction roller rolling and processing, the radial clearance of minute roll breakage and lower minute roll breakage in adjusting, while making adjacent metal band after through-thickness dislocation slippage through minute roll breakage gap in incision along the shear direction generation secondary shearing that oppositely misplaces, make all the other not cut off material shearing slip generation plastic deformation again, realize band roll extrusion separated.
Compared with prior art, the present invention has following useful technique effect:
1) the present invention can measure sheet metal circle shear and cut three-dimensional power dynamic value and the quiescent value that adds man-hour, wherein radial load is the key factor that makes material production detrusion and form crackle, in cutting process, radial load is generally main cutting force, is the basic data of transmission shaft strength rigidity, bearing arrangement, cutting mechanism power energy parameter designing; The size of axial force has a direct impact cutting disc cutting edge stress distribution and sheet material band form accuracy, dimensional accuracy etc., significant to the research of cutting disc flank wear and the distortion of sheet material lateral flexure; Tangential force is the Main Basis of longitudinal cutting drive motors parameter designing, is also that circle shear is cut the foundation of interlock capability analysis to sheet metal.The three-dimensional power recording in actual cutting process has the advantages such as real-time, validity, error be little.
2) the present invention can measure the three-dimensional power of traditional separating and cutting process, also can measure " it is separated that plasticity is sheared compressing " and divide shear force and pressure roller disjunction compressing separation force without the three-dimensional of burr technique (patent of invention ZL201110136574.8), apparatus structure is simple, easy to use.Measurement mechanism of the present invention and measuring method thereof can be cut the three-dimensional power separated with minute roll breakage roll extrusion for all kinds of sheet metal circle shears and be measured.
Accompanying drawing explanation
Fig. 1 is that sheet metal circle shear of the present invention is cut process three-dimensional device for measuring force schematic diagram;
Fig. 2 is that sheet metal of the present invention divides the separated process three-dimensional of roll breakage roll extrusion device for measuring force schematic diagram;
Fig. 3 is vertical displacement governor motion schematic diagram of the present invention;
Fig. 4 is sheet metal circle shear roller shear processing symmetrical expression group cutter of the present invention and the stressed schematic diagram of cutting disc roller shear process;
Fig. 5 is sheet metal circle shear roller shear processing asymmetric group cutter of the present invention and the stressed schematic diagram of cutting disc roller shear process;
Fig. 6 is that sheet metal of the present invention divides the separated processing of roll breakage roll extrusion and disjunction roll-in to compel the stressed schematic diagram of separation process;
In figure: 1. go up cutting disc, 2. lower disc cutter, 3. upload moving axis, 4. lower drive shaft, 5. frame, 6. three-dimensional power measuring table, 7. slide block, 8. slide block travel mechanism, 9. left shaft holder, 10. go up servomotor, 11. times servomotors, 12. servo control systems, 13. sheet metals, rubber ring pad on 14., hydraulic locking nut on 15., spacer ring on 16., 17. times rubber ring pads, 18. times hydraulic locking nuts, 19. times spacer rings, 20. frame right plates, 21. right bearing seats, 22. force signal treatment systems, minute roll breakage on 23., 24. times minutes roll breakages, 25. amesdials.
The specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
It shown in Fig. 1, is the schematic diagram that plate disc of the present invention is cut three-dimensional force measuring device, include cutting disc 1, lower disc cutter 2, upload moving axis 3, lower drive shaft 4, frame 5, three-dimensional power measuring table 6, wherein uploading moving axis 3 is fixed on slide block 7, slide block 7 is fixed in frame 5 by slide block travel mechanism 8, and slide block 7 can move up and down along frame right plate 20, and can along uploading moving axis 3, move left and right in company with frame right plate 20, frame right plate 20 is installed in the right side of frame 5, upload and on moving axis 3, at least assemble cutting disc 1 on a group, upper rubber ring pad 14, upper spacer ring 16, and be fixed on and upload on moving axis 3 by upper hydraulic locking nut 15, the both sides that upper spacer ring 16 is arranged on cutting disc 1 and upper rubber ring pad 14 regulate its axial location, on lower drive shaft 4, at least assemble one group of lower disc cutter 2, lower rubber ring pad 17, lower spacer ring 19, and by lower hydraulic locking nut (18), be fixed on lower drive shaft 4, the both sides that lower spacer ring 19 is arranged on lower disc cutter 2 and lower rubber ring pad 17 regulate its axial location, uploading moving axis 3 is connected with the output shaft of lower servomotor 11 with upper servomotor 10 respectively with lower drive shaft 4, upper servomotor 10 is fixed in frame 5, lower drive shaft 4 and lower servomotor 11 are arranged on three-dimensional power measuring table 6, upper servomotor 10 is connected with servo control system 12 with lower servomotor 11, servo control system 12 is controlled two servomotors drives and is uploaded moving axis 3 and lower drive shaft 4 synchronous backwards rotations, realizes with the circle shear of producing actual identical operating mode and cuts processing, three-dimensional power measuring table 6 measures the three-dimensional active force that lower disc cutter 2 mounted thereto and lower drive shaft 4 are subject at cutting process, three-dimensional power measuring table 6 is connected with force signal treatment system 22, by dynamic value and the quiescent value of force signal treatment system 22 record analysis three-dimensional power.Under the control of servo control system 12, lower drive shaft 4 can with upload moving axis 3 synchronous backwards rotations and realize cutting disc and cut processing, three-dimensional power measuring table 6 built-in three-dimensional dynamometers record the three-dimensional force signal of process, and output to force signal treatment system 22, obtain three-dimensional power dynamic load and static load curve.
In the present embodiment, the end play of above-mentioned upper cutting disc 1 and lower disc cutter 2 and radial clearance can be adjusted, upper cutting disc 1 and the corresponding installation of lower rubber ring pad 17, lower disc cutter 2 and the corresponding installation of upper rubber ring pad 14, the end play of upper cutting disc 1 and lower disc cutter 2 is fixed on by change the axial dimension of uploading the upper spacer ring 16 on moving axis 3 and being fixed on the lower spacer ring 19 on lower drive shaft and sets, and the radial clearance of upper cutting disc 1 and lower disc cutter 2 regulates upper cutting disc 1 and the distance of lower disc cutter 2 cutting edges to set by moving up and down of slide block 7.
In the present embodiment, above-mentioned lower drive shaft 4 is fixed on three-dimensional power measuring table 6 by left shaft holder 9 and right bearing seat 21, and right bearing seat 21 can move left and right along lower drive shaft 4.Above-mentioned when being arranged on upper cutting disc 1 mounting or dismounting of uploading moving axis 3 and changing, frame right plate 20 can work in coordination with slide block 7 and slide block travel mechanism 8 integral body move axially and fix along uploading moving axis 3, while being arranged on the lower disc cutter 2 mounting or dismounting replacing on lower drive shaft 4, right bearing seat 21 can move axially and fix along lower drive shaft 4, thereby realizes replacing and the installation of cutting disc.
In the present embodiment, as shown in Figure 3, upload moving axis 3 and be fixed on slide block 7, by slide block travel mechanism 8 up-down adjustment, upload the vertical position of moving axis 3, upload the up-down adjustment amount of radial distance between moving axis and lower drive shaft and measure by the amesdial 25 being arranged on frame right plate 20.
As shown in Figure 4 and Figure 5, the set-up of tool that sheet metal circle shear is cut processing is divided into symmetrical expression group cutter and asymmetric group cutter.During symmetrical expression group cutter, uploading that part on moving axis 3 from left to right puts in order is upper cutting disc 1, upper rubber ring pad 14, upper spacer ring 16, upper rubber ring pad 14, upper cutting disc 1, it is lower rubber ring pad 17, lower disc cutter 2, lower spacer ring 19, lower disc cutter 2, lower rubber ring pad 17 that part on lower drive shaft 4 from left to right puts in order, symmetrical expression group cutter is installed the cutting disc of even-even, the axial force F a of power transmission shaft cancels out each other, be conducive to cut steadily carrying out of processing, but three-dimensional power measuring table 6 is only to record radial load Fr and the tangential force Ft that cuts processing.During asymmetric group cutter, the right cutting disc of pair of discs cutter or odd number is only installed, three-dimensional power measuring table (6) can record the three-dimensional power of cutting processing, comprises radial load Fr, axial force F a and tangential force Ft.
As shown in Figure 5, according to the physical and mechanical properties of sheet metal 13, the end play c of upper cutting disc 1 and lower disc cutter 2 is on the occasion of being 0~30% of sheet metal 13 thickness, and end play c negative value (being axial overlap) can be 0~10% of sheet metal 13 thickness.The radial clearance δ of upper cutting disc 1 and lower disc cutter 2 is on the occasion of being 0~80% of sheet metal 13 thickness, and radial clearance δ negative value (radially overlapping) can be 0%~100% of sheet metal 13 thickness; Cutting disc end play c and radial clearance δ have the matching relationship that geometrical interference does not occur cutting edge, when end play c gets negative value radial clearance δ must get on the occasion of.
As depicted in figs. 1 and 2, in Fig. 1, upper cutting disc 1 and lower disc cutter 2 can be in Fig. 2, and upper minute roll breakage 23 and lower minute roll breakage 24 replace respectively.Disjunction roller axial length is larger, only needs to install a pair of minute roll breakage; Upper minute roll breakage 23 and lower minute roll breakage 24 are axially aligned to be arranged on by distance collar and hydraulic locking nut and are uploaded on moving axis 3 and lower drive shaft 4, radial clearance regulates upper minute roll breakage 23 and the distance of lower minute roll breakage 24 rod gaps to set by moving up and down of slide block 7, size is 100~200% of sheet metal (13) thickness, as shown in Figure 6.
As depicted in figs. 1 and 2, the processing method of apparatus of the present invention is as follows:
1) sheet metal only carries out circle shear and cuts and add man-hour, cutting disc adopts axially positive gap width, radially negative clearance (radially overlapping) is organized cutter, sheet metal 13 produces plastic deformation along the relative slippage of sheet metal thickness direction under the effect of upper cutting disc 1 and lower disc cutter 2 cutting edges, because share zone, the axially positive gap material of circle shear forms after crackle expansion run through under the effect of tension, causes the separated metal band that forms of sheet material.Three-dimensional power measuring table 6 records plate disc and cuts separated three-dimensional power.
2) sheet metal successively carries out circle shear while cutting processing and minute roll breakage rolling and processing, cutting disc adopts axial negative clearance value (being axial overlap), radially positive dwell set cutter, when the sheet metal 13 upper cutting dives 1 of process and lower disc cutter 2, certain thickness is cut, because the axial negative clearance share zone sheet material of circle shear does not crack under the effect of compression, metal band through-thickness staggers but still is linked together not separated.Dismounting cutting disc, a minute roll breakage is installed, not separated band is adopted to the separated processing of minute roll breakage roll extrusion, the radial clearance of minute roll breakage 23 and lower minute roll breakage 24 in adjusting, while making adjacent metal band after through-thickness dislocation slippage through minute roll breakage gap in incision along the shear direction generation secondary shearing that oppositely misplaces, make all the other not cut off material slippage generation plastic deformation again, under the effect of shearing force, realize band roll extrusion separated.Three-dimensional power measuring table 6 records respectively plate disc plasticity and cuts and minute separated three-dimensional power of roll breakage roll extrusion.
Apparatus of the present invention upload moving axis 3 by servo control system 12 realizations and lower drive shaft 4 synchronous backwards rotate, cut process actual in full accord with production, three-dimensional power measuring table measures the force signal that cutting disc is cut process online, the three-dimensional power recording has the advantages such as real-time, validity, error be little, also can measure " it is separated that plasticity is sheared compressing " and divide shear force and disjunction rod roll extrusion component power without the three-dimensional of burr separating and cutting process, apparatus structure is simple, easy to use.The circle shear of all kinds of sheet metals that measurement mechanism of the present invention and measuring method thereof go for 0.1-3mm thickness under the set-up of tools such as different radial clearances, end play and other technological parameters cut the three-dimensional power separated with minute roll breakage roll extrusion and measured.

Claims (9)

1. a sheet metal circle shear is cut processing three-dimensional force measuring device, it is characterized in that including cutting disc (1), lower disc cutter (2), upload moving axis (3), lower drive shaft (4), frame (5), three-dimensional power measuring table (6), wherein uploading moving axis (3) is fixed on slide block (7), slide block (7) is fixed in frame (5) by slide block travel mechanism (8), and slide block (7) can move up and down along frame right plate (20), can along uploading moving axis (3), move left and right in company with frame right plate (20), upload and on moving axis (3), at least assemble cutting disc on a group (1), upper rubber ring pad (14), upper spacer ring (16), and be fixed on and upload on moving axis (3) by upper hydraulic locking nut (15), the both sides that upper spacer ring (16) is arranged on cutting disc (1) and upper rubber ring pad (14) regulate its axial location, on lower drive shaft (4), at least assemble one group of lower disc cutter (2), lower rubber ring pad (17), lower spacer ring (19), and it is upper by lower hydraulic locking nut (18), to be fixed on lower drive shaft (4), and the both sides that lower spacer ring (19) is arranged on lower disc cutter (2) and lower rubber ring pad (17) regulate its axial location, uploading moving axis (3) is connected with the output shaft of lower servomotor (11) with upper servomotor (10) respectively with lower drive shaft (4), upper servomotor (10) is fixed in frame (5), lower drive shaft (4) and lower servomotor (11) are arranged on three-dimensional power measuring table (6), upper servomotor (10) is connected with servo control system (12) with lower servomotor (11), servo control system (12) is controlled two servomotors drives and is uploaded moving axis (3) and the rotation of lower drive shaft (4) synchronous backward, realize with the circle shear of producing actual identical operating mode and cut processing, three-dimensional power measuring table (6) measures the three-dimensional active force that lower disc cutter (2) mounted thereto and lower drive shaft (4) are subject at cutting process, and three-dimensional power measuring table (6) is connected with force signal treatment system (22).
2. sheet metal circle shear according to claim 1 is cut processing three-dimensional force measuring device, the end play and the radial clearance that it is characterized in that above-mentioned upper cutting disc (1) and lower disc cutter (2) can be adjusted, upper cutting disc (1) and the corresponding installation of lower rubber ring pad (17), lower disc cutter (2) and the corresponding installation of upper rubber ring pad (14), the axial dimension setting that the end play of upper cutting disc (1) and lower disc cutter (2) is fixed on by change the upper spacer ring (16) of uploading on moving axis (3) and is fixed on the lower spacer ring (19) on lower drive shaft, the radial clearance of upper cutting disc (1) and lower disc cutter (2) regulates upper cutting disc (1) and the distance of lower disc cutter (2) cutting edge to set by moving up and down of slide block (7).
3. sheet metal circle shear according to claim 1 is cut processing three-dimensional force measuring device, it is characterized in that above-mentioned lower drive shaft (4) is fixed on three-dimensional power measuring table (6) by left shaft holder (9) and right bearing seat (21) upper, and right bearing seat (21) can move left and right along lower drive shaft (4).
4. sheet metal circle shear according to claim 1 is cut processing three-dimensional force measuring device, it is characterized in that the above-mentioned up-down adjustment amount of uploading radial distance between moving axis (3) and lower drive shaft (4) is by being arranged on amesdial (25) measurement on frame right plate (20).
5. sheet metal circle shear according to claim 1 is cut processing three-dimensional force measuring device, it is characterized in that the end play of above-mentioned upper cutting disc (1) and lower disc cutter (2) is on the occasion of being 0~30% of sheet metal (13) thickness of slab, end play negative value is 0~10% of sheet metal (13) thickness; The radial clearance of upper cutting disc (1) and lower disc cutter (2) is on the occasion of being 0~80% of sheet metal (13) thickness, and radial clearance negative value (radially overlapping) is 0~100% of sheet metal (13) thickness.
6. according to the sheet metal circle shear described in claim 1 to 5 any one, cut processing three-dimensional force measuring device, it is characterized in that above-mentioned circle shear cuts the set-up of tool of processing and include symmetrical expression group cutter and asymmetric group cutter, during symmetrical expression group cutter, uploading that part on moving axis (3) from left to right puts in order is upper cutting disc (1), upper rubber ring pad (14), upper spacer ring (16), upper rubber ring pad (14), upper cutting disc (1), it is lower rubber ring pad (17) that part on lower drive shaft (4) from left to right puts in order, lower disc cutter (2), lower spacer ring (19), lower disc cutter (2), lower rubber ring pad (17), the cutting disc quantity of symmetrical expression group cutter is even-even.
7. sheet metal circle shear according to claim 1 is cut processing three-dimensional force measuring device, it is characterized in that above-mentioned upper cutting disc (1) and lower disc cutter (2) can by upper minute roll breakage (23) and lower minute roll breakage (24) replace respectively, a pair of minute roll breakage is only installed.
8. sheet metal circle shear according to claim 7 is cut processing three-dimensional force measuring device, it is characterized in that above-mentioned minute roll breakage (23) and lower minute roll breakage (24) by distance collar and hydraulic locking nut, axially align to be arranged on and upload on moving axis (3) and lower drive shaft (4), radial clearance regulates upper minute roll breakage (23) and the distance of lower minute roll breakage (24) rod gap to set by moving up and down of slide block (7), and size is 100~200% of sheet metal (13) thickness.
9. sheet metal circle shear is cut a processing method for processing three-dimensional force measuring device, it is characterized in that comprising following method:
1) sheet metal only carries out circle shear and cuts and add man-hour, cutting disc adopts axially positive gap width, radially negative clearance (radially overlapping) is organized cutter, sheet metal (13) is realized plastic deformation along the relative slippage of sheet metal thickness direction under the effect of upper cutting disc (1) and lower disc cutter (2) cutting edge, because share zone, the axially positive gap sheet material of circle shear cracks under the effect of local tension, Crack Propagation runs through and causes the separated metal band that forms of material;
2) sheet metal successively carries out circle shear while cutting processing and minute roll breakage rolling and processing, cutting disc adopts axial negative clearance value, radially positive dwell set cutter, in sheet metal (13) process when cutting disc (1) and lower disc cutter (2), because axial negative clearance share zone sheet material its certain thickness material through-thickness under the effect of compression of circle shear is cut, but do not crack, formation through-thickness staggers but still sticky being linked togather and unseparated metal band mutually; Dismounting cutting disc, a minute roll breakage is installed, lightning strip band is not carried out to disjunction roller rolling and processing, in adjusting minute roll breakage (23) with lower minute roll breakage (24) radial clearance, adjacent metal band after through-thickness slippage is staggered during through minute roll breakage gap in incision along the shear direction generation secondary shearing that oppositely misplaces, make all the other not cut off material and again produce slippage and realize plastic deformation, under the effect of tension, crack, realize band roll extrusion separated.
CN201410425021.8A 2014-08-26 2014-08-26 Sheet metal circle shear cutting processing three-dimensional force measuring device and its method Active CN104191313B (en)

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CN203636509U (en) * 2013-11-10 2014-06-11 吉林大学 Three-dimensional cutting force measuring device
CN203973302U (en) * 2014-08-26 2014-12-03 广东工业大学 A kind of sheet metal circle shear is cut processing three-dimensional force measuring device

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* Cited by examiner, † Cited by third party
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CN104626243A (en) * 2015-01-26 2015-05-20 大连橡胶塑料机械股份有限公司 Shear type electric cutter disc
CN107275909A (en) * 2017-06-19 2017-10-20 温惟善 One kind eliminates hermetically sealed connector electrode guide pillar gas leakage method
CN107275909B (en) * 2017-06-19 2018-11-13 温惟善 A kind of elimination hermetically sealed connector electrode guide post gas leakage method

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