CN204389085U - Combined type high precision triaxial force sensor - Google Patents
Combined type high precision triaxial force sensor Download PDFInfo
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- CN204389085U CN204389085U CN201520073267.3U CN201520073267U CN204389085U CN 204389085 U CN204389085 U CN 204389085U CN 201520073267 U CN201520073267 U CN 201520073267U CN 204389085 U CN204389085 U CN 204389085U
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Abstract
The utility model discloses a kind of combined type high precision triaxial force sensor, belong to Machine Design and sensing measurement technical field.Triaxial force sensor, comprises stressed module, installation module and resistance strain gage three main modular and mounting base, part to be measured and peripheral metering circuit etc. peripherals.Stressed module and installation module are connected by screw as a whole, the body of composition triaxial force sensor; Stressed module and part to be measured are installed by screw, realize the input of three-axis force; Installation module is installed on mounting base, realizes the fixing of sensor; Each measurement module of triaxial force sensor arranges four resistance strain gages, and forms full bridge measurement circuit, exports to measuring the electric signal obtained the measurement that peripheral circuit can realize three direction force.The utility model can realize simultaneously to the high-acruracy survey of X, Y, Z tri-direction abrasive powers suffered by workpiece in precise fine attrition process process.
Description
Technical field
The utility model relates to the combined type high precision triaxial force sensor used in a kind of precise fine process, belongs to Machine Design and sensing measurement technical field.
Background technology
Along with modern military system is to miniaturization, high precision future development, urgent requirement is proposed to the miniaturization of inertial navigation system and structure devices thereof.The miniaturization of inertia device, is conducive to the reliability of raising system, anti-overload ability, stealth, maneuverability, integrated level, is conducive to the volume and weight of minimizing system simultaneously.Depart from the range of size of conventional inertia device through the inertia device of miniaturization, enter the Precision Machining ranks of microtexture part, and far beyond the traditional diamond-making technique range of work in power.In Ultra-precision Turning process, are the important means realizing high precision, high-quality, high-level efficiency processing to the high-acruracy survey of three direction cutting force suffered by workpiece in process.From existing triaxial force sensor, mainly contain following two kinds:
(1) the three-axis force measurement mechanism of multiple single shaft force snesor formation: apply three single shaft force snesor and be aided with corresponding mounting structure, the direction of measurement of three single shaft force snesor is arranged by three change in coordinate axis direction of orthogonal coordinate system respectively, connect into as a whole, each single shaft force snesor realizes the measurement of the power in a direction, and then realizes the measurement of three direction force.
(2) anistree ring type triaxial force sensor: triaxial force sensor body adopts the stability good monoblock type octagonal ring structure with four earrings, four earrings are arranged in four angles of square triaxial force sensor respectively, by designing and test the dimensional tolerence of adjustment four earrings, geometrical and toleranging and roughness, make it meet the measurement requirement of triaxial force sensor, realize the measurement of three direction force.
Above-mentioned two kinds of triaxial force sensors are mainly used in the experimental studies such as the measurement of three direction force in conventional cutting process, although it is simple to have structure, range ability is wide, easily realizes the advantages such as detection in real time.But the shortcoming of these two kinds of triaxial force sensors is: the first triaxial force sensor needs the mounting structure of design and installation three single shaft force snesor, installation process is complicated, use inconvenience, due to the impact of mounting structure, the measurement result of three single shaft force snesor can influence each other, and produces larger coupling error; Although the second triaxial force sensor is integral structure, easy for installation, but the contour structures more complicated of himself, processing difficulties, and the measurement module of its all directions is not separate, in measuring process, the measurement result of all directions has larger coupling error.In precision machining processes, in order to accurately, comprehensively carry out cutting force measurement, needing a kind of contour structures of design badly simple, easy to install, and the triaxial force sensor of high-acruracy survey can be carried out simultaneously to three direction force.
Utility model content
In view of this, the utility model provides a kind of combined type high precision triaxial force sensor, can realize simultaneously to the high-acruracy survey of X, Y, Z tri-direction abrasive powers suffered by workpiece in microtexture part precision machining processes with simple structure.
A kind of combined type high precision triaxial force sensor, comprises the metering circuit of stressed module, installation module, resistance strain gage, mounting base, part to be measured and periphery.
The 3 d part of the integral structure that described stressed module is formed by five rectangular block order vertical connections, front four rectangular blocks order forms a untight square shape, 5th rectangular block perpendicular to the 4th rectangular block end and be positioned at square shape and form cantilever beam structure, the end of the 5th rectangular block is positioned at the center of hollow structure, the upper surface of described 5th rectangular block is processed with threaded hole, this surface is plane of constraint, and threaded hole is for installing part to be measured; The upper surface of described first rectangular block is processed with connecting hole, described second and the 3rd rectangular block is processed with two beam structure; Described second bottom surface to the 5th rectangular block is positioned at same plane and higher than the bottom surface of first rectangular block;
Described installation module is made up of two contiguous blocks and tie-beam, tie-beam is simultaneously perpendicular to two contiguous blocks, tie-beam is processed with two beam structure, the upper surface of one of them contiguous block is processed with mounting hole, the surface of another contiguous block is processed with connecting thread hole; The plane at the upper and lower surface place of tie-beam is positioned within the plane at two contiguous block upper and lower surface places, and the lower surface being processed with the contiguous block of mounting hole is mounting plane, and the upper surface being processed with the contiguous block in connecting thread hole connects plane for installing;
Its integrated connection closes: a contiguous block of described installation module is fixedly connected with first rectangular block of stressed module, being fixed by the connecting hole on the connecting thread hole on contiguous block and first rectangular block, fits in the bottom surface that the installation on described contiguous block connects plane and stressed module first rectangular block; Second of described stressed module exists gap between the surface relative with installation module, the bottom surface of the 5th rectangular block, described part to be measured is fixedly connected on the plane of constraint of the 5th rectangular block on installation module, the two beam structures in the central axis of described 5th rectangular block upper surface threaded hole and installation module on tie-beam be centrally located on same straight line; Above-mentioned parts constitute the entirety of triaxial force sensor, and the 3rd of described stressed module and second rectangular block form X-axis module and Y-axis module respectively, and in described installation module, tie-beam forms Z axis module; Described sensor entirety is fixedly connected with described mounting base by another contiguous block of installation module, and the mounting plane of described contiguous block and the upper surface of mounting base are fitted, and there is gap between the tie-beam of described installation module and the upper surface of mounting base; Described resistance strain gage is arranged in the inside of the two beam structure of triaxial force sensor, the deformation of stressed for triaxial force sensor generation is converted to electric signal, realizes the measurement of X, Y, Z tri-direction force.
Further, the intersection of second of described stressed module and the 3rd rectangular block is provided with the stressed cable hole of the cavity of through pair of beam structure respectively, and described mounting blocks is provided with installation cable hole; Three two beam structure four resistance strain gages separately carry out group bridge in the mode of full-bridge, and cable is connected with peripheral metering circuit with the installation cable hole of installation module by the stressed cable hole of stressed module.
Further, described resistance strain gage is high precision platinum formula foil gauge.
Principle of work: described X-axis module, Y-axis module and Z axis module are three identical two beam structures, being optimized described pair of beam structure three respectively by structural design, Mechanics Calculation, simulation analysis makes it meet high-precision measurement requirement, then precision resister foil gauge is sticked at three two beam structure inwalls close to the place of four rounded corners, three two beam structure four resistance strain gages are separately carried out group bridge in the mode of full-bridge, and is connected to the measurement that peripheral metering circuit can realize X, Y, Z tri-direction force; The plane of constraint of described stressed module and the planes overlapping of part to be measured are installed, and by the threaded hole of described stressed module, triaxial force sensor and part to be measured are linked together closely, make the power suffered by part to be measured all pass to triaxial force sensor.
Beneficial effect:
1, the utility model adopts two simple part combination to be installed as the mode of a triaxial force sensor, both solve triaxial force sensor in the past and adopt single part manufacture, difficulty of processing is large, the difficulty that cost is high, turn avoid the complex process adopting multiple single shaft force snesor to piece together three-axis force measurement mechanism, one-piece construction is simple, process velocity is quick, easy to install
2, the utility model can realize directly measuring the power in three directions simultaneously, testing force is without three measurement modules being delivered to triaxial force sensor of any reduction, and three the independent force signal on oneself direction are measured of measurement module, be independent of each other, there is the features such as measuring accuracy is high, measurement range is wide, the measurement requirement of three direction force in precise fine structural member process can be met, there is very strong applicability, for the high-quality Precision Machining of microtexture part provides technical guarantee.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present utility model;
Fig. 2 is the stressed module diagram of the utility model;
Fig. 3 is the utility model installation module schematic diagram.
Wherein, the stressed module of 1-, 2-resistance strain gage, 3-part to be measured, 4-mounting base, 5-installation module, 6-plane of constraint, 7-threaded hole, 8-connecting hole, 9-stressed connection plane, 10-Y axle module, the stressed cable hole of 11-, 12-X axle module, 13-connecting thread hole, 14-mounting hole, 15-mounting plane, 16-Z axle module, 17-install cable hole, 18-installation connection plane.
Embodiment
To develop simultaneously embodiment below in conjunction with accompanying drawing, the utility model is described in detail.
As shown in Figure 1, combined type high precision triaxial force sensor of the present utility model comprises the metering circuit of stressed module 1, installation module 5, resistance strain gage 2, mounting base 4, part to be measured 3 and periphery.
The 3 d part of the integral structure that described stressed module 1 is formed by five rectangular block order vertical connections, front four rectangular blocks order forms a untight square shape, 5th rectangular block perpendicular to the 4th rectangular block end and be positioned at square shape and form cantilever beam structure, the end of the 5th rectangular block is positioned at the center of hollow structure, the upper surface of described 5th rectangular block is processed with threaded hole 7, this surface is plane of constraint 6, and threaded hole is for installing part 3 to be measured; The upper surface of described first rectangular block is processed with connecting hole 8, and lower surface is stressed connection plane 9, described second and the 3rd rectangular block is processed with two beam structure; Described second bottom surface to the 5th rectangular block is positioned at same plane and higher than the bottom surface of first rectangular block;
Described installation module 5 is made up of two contiguous blocks and tie-beam, tie-beam is simultaneously perpendicular to two contiguous blocks, tie-beam is processed with two beam structure, the upper surface of one of them contiguous block is processed with mounting hole 14, the surface of another contiguous block is processed with connecting thread hole 13; The plane at the upper and lower surface place of tie-beam is positioned within the plane at two contiguous block upper and lower surface places, and the lower surface being processed with the contiguous block of mounting hole 14 is mounting plane 15, and the upper surface being processed with the contiguous block in connecting thread hole 13 connects plane 18 for installing;
Its integrated connection closes: a contiguous block of described installation module 5 is fixedly connected with first rectangular block of stressed module 1, fixed by the connecting thread hole 13 on contiguous block and the connecting hole on first rectangular block 8, the stressed plane 9 that is connected that the installation on described contiguous block connects plane 18 and stressed module 1 first rectangular block is fitted; Second of described stressed module 1 exists gap between the surface relative with installation module 5, the bottom surface of the 5th rectangular block, described part to be measured 3 is fixedly connected on the plane of constraint 6 of the 5th rectangular block on installation module 5, the two beam structures in the central axis of described 5th rectangular block upper surface threaded hole 7 and installation module 5 on tie-beam be centrally located on same straight line; Above-mentioned parts constitute the entirety of triaxial force sensor, and the 3rd of described stressed module 1 and second rectangular block form X-axis module 12 and Y-axis module 10 respectively, and in described installation module 5, tie-beam forms Z axis mould 16; Described sensor entirety is fixedly connected with described mounting base 4 by the mounting hole 14 on another contiguous block of installation module 5, the mounting plane 15 of described contiguous block is fitted with the upper surface of mounting base 4, there is gap between the tie-beam of described installation module 5 and the upper surface of mounting base 4; Described resistance strain gage 2 is arranged in the inside of the two beam structure of triaxial force sensor, the deformation of stressed for triaxial force sensor generation is converted to electric signal, realizes the measurement of X, Y, Z tri-direction force.
Further, the intersection of second and the 3rd rectangular block of described stressed module 1 is provided with the stressed cable hole 11 of the cavity of through pair of beam structure respectively, and described mounting blocks 5 is provided with installs cable hole 17; Three two beam structure four resistance strain gages separately carry out group bridge in the mode of full-bridge, and cable is connected with peripheral metering circuit with the installation cable hole 17 of installation module 5 by the stressed cable hole 11 of stressed module 1.
Further, described resistance strain gage 2 is high precision platinum formula foil gauge.
Principle of work: described X-axis module, Y-axis module and Z axis module are three identical two beam structures, being optimized described pair of beam structure three respectively by structural design, Mechanics Calculation, simulation analysis makes it meet high-precision measurement requirement, then precision resister foil gauge is sticked at three two beam structure inwalls close to the place of four rounded corners, three two beam structure four resistance strain gages are separately carried out group bridge in the mode of full-bridge, and is connected to the measurement that peripheral metering circuit can realize X, Y, Z tri-direction force; The plane of constraint of described stressed module 1 and the planes overlapping of part to be measured are installed, and by the threaded hole 7 of described stressed module 1, triaxial force sensor and part to be measured are linked together closely, make the power suffered by part to be measured all pass to triaxial force sensor; Two stressed cable holes 11 of described stressed module 1 and an installation cable hole 17 of described installation module are all the through holes for sensor cabling, and all input and output cables of triaxial force sensor are all passed through from sensor internal.
In sum, these are only preferred embodiment of the present utility model, be not intended to limit protection domain of the present utility model.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. a combined type high precision triaxial force sensor, it is characterized in that, comprise stressed module (1), installation module (5), resistance strain gage (2), mounting base (4), part to be measured (3) and peripheral metering circuit;
The 3 d part of the integral structure that described stressed module (1) is formed by five rectangular block order vertical connections, front four rectangular blocks order forms a untight square shape, 5th rectangular block perpendicular to the 4th rectangular block end and be positioned at square shape and form cantilever beam structure, the end of the 5th rectangular block is positioned at the center of hollow structure, the upper surface of described 5th rectangular block is processed with threaded hole (7), and this surface is plane of constraint (6); The upper surface of described first rectangular block is processed with connecting hole (8), described second and the 3rd rectangular block is processed with two beam structure; Described second bottom surface to the 5th rectangular block is positioned at same plane and higher than the bottom surface of first rectangular block;
Described installation module (5) is made up of two contiguous blocks and tie-beam, tie-beam is simultaneously perpendicular to two contiguous blocks, tie-beam is processed with two beam structure, the upper surface of one of them contiguous block is processed with mounting hole (14), the surface of another contiguous block is processed with connecting thread hole (13); The plane at the upper and lower surface place of tie-beam is positioned within the plane at two contiguous block upper and lower surface places, the lower surface being processed with the contiguous block of mounting hole (14) is mounting plane (15), and the upper surface being processed with the contiguous block in connecting thread hole (13) connects plane (18) for installing;
Its integrated connection closes: a contiguous block of described installation module (5) is fixedly connected with first rectangular block of stressed module (1), fixed by the connecting thread hole (13) on contiguous block and the connecting hole (8) on first rectangular block, the installation on described contiguous block connects plane (18) and fits with the bottom surface of stressed module (1) first rectangular block; Second of described stressed module (1) exists gap between the surface relative with installation module (5), the bottom surface of the 5th rectangular block, described part to be measured (3) is fixedly connected on the plane of constraint (6) of upper 5th rectangular block of installation module (5), the two beam structures in the central axis of described 5th rectangular block upper surface threaded hole (7) and installation module (5) on tie-beam be centrally located on same straight line; Above-mentioned parts constitute the entirety of triaxial force sensor, and the 3rd of described stressed module (1) and second rectangular block form X-axis module and Y-axis module respectively, and in described installation module (5), tie-beam forms Z axis module; Described sensor entirety is fixedly connected with described mounting base (4) by another contiguous block of installation module (5), the mounting plane (15) of described contiguous block and the upper surface of mounting base (4) are fitted, and there is gap between the tie-beam of described installation module (5) and the upper surface of mounting base (4); Described resistance strain gage (2) is arranged in the inside of the two beam structure of triaxial force sensor, the deformation of stressed for triaxial force sensor generation is converted to electric signal, realizes the measurement of X, Y, Z tri-direction force.
2. combined type high precision triaxial force sensor as claimed in claim 1, it is characterized in that, the intersection of second and the 3rd rectangular block of described stressed module (1) is provided with the stressed cable hole (11) of the cavity of through pair of beam structure respectively, and described mounting blocks (5) is provided with installs cable hole (17); Three two beam structure four resistance strain gages (2) separately carry out group bridge in the mode of full-bridge, and cable is connected with peripheral metering circuit with the installation cable hole (17) of installation module (5) by the stressed cable hole (11) of stressed module (1).
3. combined type high precision triaxial force sensor as claimed in claim 1, it is characterized in that, described resistance strain gage (2) is high precision platinum formula foil gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520073267.3U CN204389085U (en) | 2015-02-02 | 2015-02-02 | Combined type high precision triaxial force sensor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520073267.3U CN204389085U (en) | 2015-02-02 | 2015-02-02 | Combined type high precision triaxial force sensor |
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| CN204389085U true CN204389085U (en) | 2015-06-10 |
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| CN201520073267.3U Active CN204389085U (en) | 2015-02-02 | 2015-02-02 | Combined type high precision triaxial force sensor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104614112A (en) * | 2015-02-02 | 2015-05-13 | 北京理工大学 | Combined high-accuracy three-axis force sensor |
| CN107402100A (en) * | 2017-07-20 | 2017-11-28 | 沈阳农业大学 | A kind of force cell |
-
2015
- 2015-02-02 CN CN201520073267.3U patent/CN204389085U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104614112A (en) * | 2015-02-02 | 2015-05-13 | 北京理工大学 | Combined high-accuracy three-axis force sensor |
| CN104614112B (en) * | 2015-02-02 | 2017-02-22 | 北京理工大学 | Combined high-accuracy three-axis force sensor |
| CN107402100A (en) * | 2017-07-20 | 2017-11-28 | 沈阳农业大学 | A kind of force cell |
| CN107402100B (en) * | 2017-07-20 | 2024-03-12 | 沈阳农业大学 | Force transducer |
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