CN103076137A - Build-up force standard machine capable of automatically centering - Google Patents
Build-up force standard machine capable of automatically centering Download PDFInfo
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- CN103076137A CN103076137A CN2011103295595A CN201110329559A CN103076137A CN 103076137 A CN103076137 A CN 103076137A CN 2011103295595 A CN2011103295595 A CN 2011103295595A CN 201110329559 A CN201110329559 A CN 201110329559A CN 103076137 A CN103076137 A CN 103076137A
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- standard machine
- force standard
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Abstract
The invention belongs to an automatic centering technology and particularly discloses a build-up force standard machine capable of automatically centering. The build-up force standard machine comprises an upper bedplate and a lower bedplate; a piston, an oil cylinder and a standard sensor are arranged on the upper bedplate; an upper pulling plate and a moving beam are arranged between the upper bedplate and the lower bedplate; the upper pulling plate is connected to the upper ends of two parallel screw rods by screw threads; the moving beam is connected to the middle parts of the screw rods by screw threads; and the lower ends of the screw rods are provided with compression working tables. By the structure design of the compression working tables, a correction sensor is placed on the compression working tables, so that automatic centering of a measured sensor is completed, a gravity line of the measured sensor is enabled to be coincided with the center of the standard sensor and an error generated when the build-up force standard machine is utilized to measure the measured sensor is reduced. Performance of the build-up force standard machine is further improved.
Description
Technical field
The invention belongs to the self-centering technology, be specifically related to a kind of superposing type force standard machine.
Background technology
Progress along with the High Precision Strength Measurement Sensor technology, and the raising of hydraulic control technology, adopt (or one a group) standard transducer as standard, connect with detected sensor, with hydraulic pressure or mechanical system imposed load, begun to be used widely with the superposing type force standard machine of determining detected sensor force value parameter.
Common superposing type force standard machine mainly is to utilize oil cylinder and piston that standard transducer and tested sensor are loaded simultaneously, both bear same load, the size of load is determined by the output of standard transducer, when output reaches a certain proof force value, the output of stablizing this power value and recording tested sensor.
Yet the stress surface of power sensor is generally convex surface, high-precision proof force sensor particularly, and be the plane with the supporting pressure cap of high precision standard transducer.The prerequisite of superposing type force standard machine is that tested power sensor and proof force sensor bear same load under the effect of hydraulic cylinder plug system.Because the power sensor structurally is symmetrical, the center of gravity line of sensor can be similar to the line of symmetry of thinking sensor, but superposing type force standard machine be difficult to guarantee loading frame and by the center of gravity of the center of gravity of school sensor and standard transducer on a vertical curve, this may cause the direction run-off the straight of standard transducer and tested sensor power when cylinder plug systemic effect, so that the load of standard transducer and tested sensor is inconsistent, affect the accuracy of superposing type force standard machine.
Summary of the invention
The object of the present invention is to provide a kind of high-precision, can self centering superposing type force standard machine.
Technical scheme of the present invention is as follows:
A kind of can self centering superposing type force standard machine, it comprises upper platen and lower platen, described upper platen is provided with oil cylinder, is provided with piston in the oil cylinder, described piston is provided with standard transducer; Be fixed with upper backup pad on the described upper platen, the standard transducer on the described piston contacts with the lower surface of this back up pad; Be provided with arm-tie and moving crossbeam between described upper platen and the lower platen, upper arm-tie center is fixed with upper connecting rod, and moving crossbeam center is fixed with lower link, and described lower link and upper connecting rod are coaxial; Described upper arm-tie is threaded connection in the upper end of two parallel leading screws, and described moving crossbeam is threaded connection the middle part at above-mentioned leading screw; The lower end of described leading screw is provided with presses to worktable; This is pressed to worktable and comprises main body panel, which is provided with the disk installing plate, and described disk installing plate and main body panel are provided with manhole, puts in the manhole and is provided with cylindrical rod.
Above-mentioned a kind of can self centering superposing type force standard machine in: four jiaos of described upper arm-tie are respectively equipped with lower connecting rod, and the main body panel of pressing to worktable is passed in the lower end of lower connecting rod, and are fixed on described lower platen.
Above-mentioned a kind of can self centering superposing type force standard machine in: described lower platen is provided with the tapered cylinder groove, and described lower connecting rod is installed in the above-mentioned tapered cylinder groove by the tapered cylinder pin.
Above-mentioned a kind of can self centering superposing type force standard machine in: be provided with column between described upper platen and the lower platen.
Above-mentioned a kind of can self centering superposing type force standard machine in: described cylindrical rod adopts No. 45 steel to make.
Above-mentioned a kind of can self centering superposing type force standard machine in: described manhole is 19～37.
Remarkable result of the present invention is: by pressing to the structural design of worktable, the school sensor is placed on presses to worktable, so that tested sensor is finished self-centering, guarantee the gravity vertical of tested sensor and the center superposition of standard transducer, reduce the error when utilizing superposing type force standard machine that tested sensor is measured.Further improve precision and the performance of superposing type force standard machine.
Description of drawings
Fig. 1 be of the present invention can self centering superposing type force standard machine structural representation;
Fig. 2 is for pressing to the worktable synoptic diagram;
Among the figure: 1. upper backup pad; 2. standard transducer; 3. piston; 4. oil cylinder; 5. upper connecting rod; 6. upper platen; 7. go up arm-tie; 8. upper connecting rod; 9. lower connecting rod; 10. lower link; 11. column; 12. screw mandrel; 13. press to worktable; 14. cylindrical rod; 15. lower platen; 16. taper locating slot; 17. conical dowel pin; 18. manhole; 19. moving crossbeam; 20. disk installing plate; 21. main body panel.
Embodiment
Below in conjunction with drawings and the specific embodiments the present invention is described in further detail.
As shown in Figure 1, install one in the upper end of two screw mandrels that are parallel to each other 12 by screw thread on arm-tie 7, the center of upper arm-tie 7 is installed with a upper connecting rod 8.By screw thread a moving crossbeam 19 is installed at these two rhizoids thick stick, 12 middle parts, and at lower link 10 of the center of moving crossbeam 19 fixed installation, this lower link 10 and above-mentioned upper connecting rod 8 are coaxial.
After upper arm-tie 7 and moving crossbeam 19 installed with leading screw 12 respectively, four lower connecting rod 9 lower ends are installed one press to worktable 13, and these both sides of pressing to worktable 13 are processed with semi-circular groove, and two above-mentioned rhizoid thick sticks 12 pass respectively the semi-circular groove that this presses to worktable 13 both sides.Be fixedly mounted on arm-tie 7 in above-mentioned these four lower connecting rod 9 Russia upper ends.
Arm-tie 7, moving crossbeam 19 and press to worktable 13 between upper platen 6 and lower platen 15 on described, and by these four lower connecting rods 9 upper arm-tie 7 is fixedly connected with upper platen 6, the lower end of lower connecting rod 9 is fixedly mounted on the surface of lower platen 15 simultaneously.
At four upper connecting rods 5 that are equipped with of upper platen 6, upper platen 6 is not passed in the lower end of minute connecting link 5, and passes above-mentioned upper arm-tie 7.For so that support firmly between upper platen 6 and the lower platen 15, between upper platen 6 and lower platen 15, fixedly mounted four root posts 11, thereby so that supported more firm.
The upper end of described upper connecting rod 5 is installed with upper backup pad 1.Between upper platen 6 and upper backup pad 1, the center of above-mentioned upper platen 6 is installed with oil cylinder 4, and piston 3 is installed in the oil cylinder 4, and a standard transducer 2 is installed on the piston, this standard transducer 2 contacts with the lower surface of upper backup pad 1.
As shown in Figure 2 press to the worktable synoptic diagram, the described worktable of pressing to comprises a main body panel 21, fixedly mount a disk installing plate 20 thereon, be processed with some manholes 18 at this disk installing plate 20 and main body panel 21, in the middle of the present embodiment, manhole 18 is processed with 19.At cylindrical rod 14 of each manhole 18 interior placement, this cylindrical rod 14 is to make with No. 45 steel.
As shown in Figure 2, for the loading frame that upper support beam 1, upper connecting rod 5, upper arm-tie 7, lower connecting rod 9, disk installing plate 20 and main body panel 21 are formed, the position immobilizes in to the process of tested sensor, the position that lower connecting rod 9 is installed at the upper surface of lower platen 15 is processed with taper locating slot 16, and installs and fixes by conical dowel pin 17 and lower end and the lower platen 15 of this taper locating slot 16 with upper connecting rod 9.
After upper support beam 1, upper connecting rod 5, upper arm-tie 7, lower connecting rod 9, disk installing plate 20 and main body panel 21 connect, utilize hydraulic control system that oil cylinder 4 is refueled, under the effect of oil pressure, piston 3 is with standard transducer 2 jack-up.When standard transducer contacts back piston 3 with the upper support beam when, with upper support beam 1, upper connecting rod 5, upper arm-tie 7, lower connecting rod 9, disk installing plate 20 and main body panel 21 jack-up, because the top of standard transducer 2 is convex, Action of Gravity Field under, upper support beam 1, upper connecting rod 5, upper arm-tie 7, lower connecting rod 9, the framework that disk installing plate 20 and main body panel 21 form and tested sensor tilt to the centerline direction of standard transducer 2, to oil cylinder 4 emptyings, this moment standard transducer 2, upper support beam 1, upper connecting rod 5, upper arm-tie 7, lower connecting rod 9, disk installing plate 20 and main body panel 21 will descend, in the process that descends, the bottom that tilts will at first touch lower platen 15, after falling fully, upper support beam 1, upper connecting rod 5, upper arm-tie 7, lower connecting rod 9, the center of gravity of the framework that disk installing plate 20 and main body panel 21 form will be closer to the center of standard transducer, after repeating this process 3-6 time, determine the position, and at the upper surface of lower platen 15 the position processing taper locating slot 16 of lower connecting rod 9 is installed, install and fix by conical dowel pin 17 and this taper locating slot 16 lower end and lower platen 15 with upper connecting rod 9.Determine the center of gravity of the framework that upper support beam 1, upper connecting rod 5, upper arm-tie 7, lower connecting rod 9, disk installing plate 20 and main body panel 21 form and the center superposition at sensor center.
Tested sensor is positioned on the cylindrical rod 14, utilize hydraulic control system that oil cylinder 4 is refueled, under the effect of oil pressure, piston 3 is with standard transducer 2 jack-up, when standard transducer contacts back piston 3 with the upper support beam when, upper support beam 1, upper connecting rod 5, upper arm-tie 7, lower connecting rod 9, conical dowel pin 17, disk installing plate 20 and main body panel 21 jack-up, conical dowel pin 17 will break away from taper locating slot 16, along with the distance of jack-up is increasing, the top that the disk installing plate will rise cylindrical rod 14 holds up tested sensor, this moment tested sensor deviation of gravity center the center of standard transducer, because the top of standard transducer 2 is convex, under the Action of Gravity Field of tested sensor, upper support beam 1, upper connecting rod 5, upper arm-tie 7, lower connecting rod 9, conical dowel pin 17, the framework that disk installing plate 20 and main body panel 21 form and tested sensor tilt to the centerline direction of standard transducer 2, after tested sensor is held up fully by disk installing plate 20, to oil cylinder 4 emptyings, this moment standard transducer 2, upper support beam 1, upper connecting rod 5, upper arm-tie 7, lower connecting rod 9, conical dowel pin 17, disk installing plate 20 and main body panel 21 will descend, in the process that descends, the bottom of the tested sensor that tilts will at first touch cylindrical rod 14, and conical dowel pin 17 will be fallen in the taper locating slot 16, in this process because the effect of conical dowel pin 17 location is arranged, upper support beam 1, upper connecting rod 5, upper arm-tie 7, lower connecting rod 9, conical dowel pin 17, the position of disk installing plate 20 and main body panel 21 can not change, and tested sensor is progressively drawn close to the center of standard transducer 2, after repeating this process 3-6 time, the centering of tested sensor will be finished.
Claims (6)
- One kind can self centering superposing type force standard machine, it comprises upper platen (6) and lower platen (15), described upper platen (6) is provided with oil cylinder (4), be provided with piston (3) in the oil cylinder (4), described piston (3) is provided with standard transducer (2); Be fixed with upper backup pad (1) on the described upper platen (6), the standard transducer (2) on the described piston (3) contacts with the lower surface of this back up pad (1); It is characterized in that: be provided with arm-tie 7 and moving crossbeam (19) between described upper platen (6) and the lower platen (15), upper arm-tie (7) center is fixed with upper connecting rod (8), moving crossbeam (19) center is fixed with lower link (10), and described lower link (10) and upper connecting rod (8) are coaxial; Described upper arm-tie (7) is threaded connection in the upper end of two parallel leading screws (12), and described moving crossbeam (19) is threaded connection the middle part in above-mentioned leading screw (12); The lower end of described leading screw (12) is provided with presses to worktable (13); This is pressed to worktable (13) and comprises main body panel (21), which is provided with disk installing plate (20), described disk installing plate (20) and main body panel (21) are provided with manhole (18), put in the manhole (18) to be provided with cylindrical rod (14).
- As claimed in claim 1 a kind of can self centering superposing type force standard machine, it is characterized in that: four jiaos of described upper arm-tie (7) are respectively equipped with lower connecting rod (9), the main body panel (21) of pressing to worktable (13) is passed in the lower end of lower connecting rod (9), and is fixed on described lower platen (15).
- As claimed in claim 2 a kind of can self centering superposing type force standard machine, it is characterized in that: described lower platen (15) is provided with tapered cylinder groove (16), and described lower connecting rod (9) is installed in the above-mentioned tapered cylinder groove (16) by tapered cylinder pin (17).
- As claim 1 or 2 or 3 described a kind of can self centering superposing type force standard machine, it is characterized in that: be provided with column (11) between described upper platen (6) and the lower platen (15).
- As claim 1 or 2 or 3 described a kind of can self centering superposing type force standard machine, it is characterized in that: described cylindrical rod (14) adopts No. 45 steel to make.
- As claim 1 or 2 or 3 described a kind of can self centering superposing type force standard machine, it is characterized in that: described manhole (18) is 19～37.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110329559.5A CN103076137B (en) | 2011-10-26 | 2011-10-26 | Build-up force standard machine capable of automatically centering |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110329559.5A CN103076137B (en) | 2011-10-26 | 2011-10-26 | Build-up force standard machine capable of automatically centering |
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| CN103076137A true CN103076137A (en) | 2013-05-01 |
| CN103076137B CN103076137B (en) | 2014-12-10 |
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| CN201110329559.5A Active CN103076137B (en) | 2011-10-26 | 2011-10-26 | Build-up force standard machine capable of automatically centering |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807592A (en) * | 2015-05-18 | 2015-07-29 | 陶泽成 | Electric cylinder loading overlapping type force standard machine |
| CN105334113A (en) * | 2015-12-03 | 2016-02-17 | 武汉科技大学 | Hydraulic loading device for stress frozen method |
| CN105593658A (en) * | 2013-10-07 | 2016-05-18 | Mts系统公司 | Precision force applicator for force transducer calibration |
Citations (5)
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|---|---|---|---|---|
| KR970028472A (en) * | 1995-11-01 | 1997-06-24 | 정명세 | Reference table feed means of the actual load force standard |
| CN2755578Y (en) * | 2004-11-23 | 2006-02-01 | 沈阳仪表科学研究院 | Hydraulic comparing force standard instrument |
| CN2903952Y (en) * | 2006-05-17 | 2007-05-23 | 吉林大学 | Superimposed force standard machine |
| TW201022645A (en) * | 2008-12-04 | 2010-06-16 | Ind Tech Res Inst | Three-purpose force standard machine with independent dead-weight stack and lever arm |
| CN201688909U (en) * | 2009-12-29 | 2010-12-29 | 苏州龙盛测试设备有限公司 | Deadweight hydraulic combined type force standard machine |
-
2011
- 2011-10-26 CN CN201110329559.5A patent/CN103076137B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR970028472A (en) * | 1995-11-01 | 1997-06-24 | 정명세 | Reference table feed means of the actual load force standard |
| CN2755578Y (en) * | 2004-11-23 | 2006-02-01 | 沈阳仪表科学研究院 | Hydraulic comparing force standard instrument |
| CN2903952Y (en) * | 2006-05-17 | 2007-05-23 | 吉林大学 | Superimposed force standard machine |
| TW201022645A (en) * | 2008-12-04 | 2010-06-16 | Ind Tech Res Inst | Three-purpose force standard machine with independent dead-weight stack and lever arm |
| CN201688909U (en) * | 2009-12-29 | 2010-12-29 | 苏州龙盛测试设备有限公司 | Deadweight hydraulic combined type force standard machine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105593658A (en) * | 2013-10-07 | 2016-05-18 | Mts系统公司 | Precision force applicator for force transducer calibration |
| CN105593658B (en) * | 2013-10-07 | 2019-08-20 | Mts系统公司 | Accurate force application apparatus for force snesor calibration |
| CN104807592A (en) * | 2015-05-18 | 2015-07-29 | 陶泽成 | Electric cylinder loading overlapping type force standard machine |
| CN105334113A (en) * | 2015-12-03 | 2016-02-17 | 武汉科技大学 | Hydraulic loading device for stress frozen method |
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| CN103076137B (en) | 2014-12-10 |
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