CN101025379A - Pressure testing device - Google Patents

Pressure testing device Download PDF

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Publication number
CN101025379A
CN101025379A CN 200610170531 CN200610170531A CN101025379A CN 101025379 A CN101025379 A CN 101025379A CN 200610170531 CN200610170531 CN 200610170531 CN 200610170531 A CN200610170531 A CN 200610170531A CN 101025379 A CN101025379 A CN 101025379A
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CN
China
Prior art keywords
sensor
mentioned
dead axle
mounting strap
tested dead
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Pending
Application number
CN 200610170531
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Chinese (zh)
Inventor
田中学
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Minebea Co Ltd
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Minebea Co Ltd
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Publication of CN101025379A publication Critical patent/CN101025379A/en
Pending legal-status Critical Current

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Abstract

The present invention provides a pressurization detection device which will not generate the danger for damaging a deformeter when being mounted to a measured shaft, and will not need torsion management when pressing the deformeter to the measured shaft by certain pressure and can be easily mounted. The pressurization detection device has a mounting belt fixed on the measured shaft; a sensor for measuring the pressure applied to the measured shaft; a sensor mounting member mounted with the sensor in advance; a mounting jig for mounting the sensor mounting member mounted with the sensor to the mounting belt under the status that the mounting belt is fixed on the measured shaft, and making the sensor contact to the surface of the measured shaft vertically.

Description

Pressure testing device
Technical field
The present invention relates to a kind of pressure testing device, be specifically related to be installed on the pull bar (tiebar) of injector and be used to measure the pressure testing devices such as pull bar sensor of the snap-in force etc. of mould.
Background technology
Injector can carry out the mould matched moulds by clamping portion, and the resin or the plastic or other material of fusing are injected and filled wherein, and it is required form that its cooling is made this plastic shaping.
In the clamping portion that the mould that makes injector opens and closes, when packing material, carry out matched moulds with the high pressure that can apply enough pressure.At this moment, the template of supporting mould and guide the on-off action of mould and the bar-shaped pillar that bears mold clamping force is called pull bar.This pull bar is arranged at four jiaos of mould by each ground, normally uses with four one group.
Like this, because pull bar is the pillar that bears mold clamping force, detect the flexible of pull bar if wait by strainmeter, and calculate the words of the power that acts on pull bar based on this, then can there be the mode (mould is chimeric evenly) of deviation to control with the power that acts on four pull bars respectively, or detect and prevent overload, or freely control mold clamping force to pull bar.
In pull bar sensor as pressure testing device one example, by certain pressure strainmeter is pressed on the surface of pull bar, detect the flexible of pull bar.
And, in as the axle clamp formula sensor that the patent documentation 1 of example was put down in writing in the past, in advance strainmeter is attached to the medial surface of cylindrical shape anchor clamps, with plane these anchor clamps are divided into two by central axis and diameter, make after it is covered in cylindrical tested dead axle, assemble once more and fix, thereby strainmeter is installed on tested dead axle.
[patent documentation] TOHKEMY 2005-134220 communique
Yet, the problem below in above-mentioned pressure testing device in the past, existing.
For example, in the axle clamp formula sensor that patent documentation 1 is put down in writing, owing in advance strainmeter is attached to the medial surface of cylindrical shape anchor clamps, and make it be covered in cylindric tested dead axle, so the surface of strainmeter and the surface of tested dead axle may rub when covering, and damage strainmeter.And, in pressure testing device, must the surface of strainmeter be pressed into the surface of tested dead axle with certain pressure, under the situation that adopts conventional art, owing to push by certain pressure, so the screw etc. of relative configurations thing need be installed with certain torque management, have the problem of the not only complicated but also difficulty of installation exercise.
Summary of the invention
The present invention puts in view of the above problems and forms, its objective is provides a kind of danger that can not damage strainmeter when it is installed on tested dead axle, and when strainmeter being installed to tested dead axle, do not need torque management, can easily carry out the pressure testing device of installation exercise by certain pressure.
The present invention is characterized in that in order to reach above-mentioned purpose it has: mounting strap, and it is fixed in tested dead axle; Sensor, its detection puts on the pressure of above-mentioned tested dead axle; Sensor mount, it has installed the sensor in advance; Sectional fixture, it is fixed at above-mentioned mounting strap under the state of above-mentioned tested dead axle, and the sensor fabricated section that the sensor has been installed is installed on above-mentioned mounting strap, makes the Surface Vertical ground apical grafting of the sensor and above-mentioned tested dead axle.
And, the invention is characterized in that it has: mounting strap, it is fixed in tested dead axle; Sensor, its detection puts on the pressure of above-mentioned tested dead axle; Sensor mount, it has installed the sensor in advance; Sectional fixture, its the sensor fabricated section that the sensor has been installed is installed on above-mentioned mounting strap, above-mentioned sectional fixture is: be installed on above-mentioned mounting strap installation base, with when the sensor fabricated section is installed to above-mentioned mounting strap, screw thread is screwed into the ladder bolt of above-mentioned installation base, up to the rank of above-mentioned ladder bolt portion and above-mentioned installation base apical grafting and till the stop, this ladder bolt thread is screwed into this installation base, by certain pressure the sensor is pressed into the surface of above-mentioned tested dead axle thus.
And, the invention is characterized in that in technical scheme 1 or 2 inventions of being put down in writing, it is provided with the elastic body that the sensor is pressed into the surface of above-mentioned tested dead axle.
And, the invention is characterized in that in the invention that technical scheme 3 is put down in writing, it is provided with a plurality of above-mentioned elastic bodys, the sensor is pressed into the surface of above-mentioned tested dead axle in a plurality of positions that this a plurality of elastic body acted on.
According to the present invention, a kind of danger that can not damage strainmeter when it is installed on tested dead axle can be provided, and when strainmeter being pressed into tested dead axle, do not need torque management, can easily carry out the pressure testing device of installation exercise by certain pressure.
That is, according to the present invention owing to be made as technical scheme 1 and put down in writing like that, thus can make sensor, be strainmeter and determined Surface Vertical apical grafting, so can prevent the situation that strainmeter is damaged by friction.
And, according to the present invention, such as technical scheme 2 the record, since screw thread be screwed into the thick portion of ladder bolt front end, be the surperficial apical grafting of rank portion and installation base and words till the stop, then strainmeter is pressed into the surface of pull bar by spring by certain pressure, so do not need torque management.
Description of drawings
Fig. 1 is the stereographic map of the outward appearance of the embodiment of pressure testing device that the present invention relates to of expression.
Fig. 2 is the stereographic map of exploded representation pull bar sensor 1 shown in Figure 1.
Fig. 3 decomposes pull bar sensor 1 shown in Figure 1, and the side view of seeing from the III direction of Fig. 2.
To be expression be installed on stereographic map as the state of the pull bar 100 of tested dead axle with the mounting strap 2 of pull bar sensor 1 shown in Figure 1 to Fig. 4.
Fig. 5 sees that from the V direction of Fig. 1 pull bar sensor 1 shown in Figure 1 is installed on the side view of the state of pull bar 100.
Symbol description: 1 pull bar sensor; 2 mounting straps; 5,6 sensor mounts; 7,8 sensors; 7d, 8d strainmeter; 100 pull bars
Embodiment
Be explained being used to implement preferred forms of the present invention with reference to the accompanying drawings.
Fig. 1 is the stereographic map of outward appearance of an embodiment of the pressure testing device that the present invention relates to of expression.
In the present embodiment, will the pull bar sensor as one of pressure testing device example be explained, but the present invention is not limited to this, also puts on the pressure of the tested dead axle except that pull bar certainly applicable to mensuration.
As shown in Figure 1, the pull bar sensor 1 of present embodiment is installed in the mode that is wound in pull bar 100.
Pull bar sensor 1 mainly comprises: be wound in pull bar 100 mounting strap 2, be used to install the sensor 7 with strainmeter sensor mount 5, be used to install the sensor mount 6 of sensor 8 with strainmeter.
Mounting strap 2 is wound in pull bar 100, and bend 2a and 2b are fixedly clamped by bolt 3a and nut 4a etc.In addition, the invention is not restricted to this, for example also can be made as threaded hole to the hole of bend 2b, and make the bolt in the hole that connects bend 2a be locked at the threaded hole place of bend 2b, thereby mounting strap 2 is fixed in pull bar 100.
Sensor 7 is fixed in sensor mount 5 by bolt 21,22,23, and the sensor mount 5 that is fixed with sensor 7 is fixed in mounting strap 2 by ladder bolt 9 and packing ring 13, ladder bolt 11 and packing ring 15 etc.
Fig. 2 is the stereographic map of exploded representation pull bar sensor 1 shown in Figure 1.
And Fig. 3 decomposes pull bar sensor 1 shown in Figure 1, and the side view of seeing from the III direction of Fig. 2.In addition, right half part is represented with cut-open view in Fig. 3.
Mounting strap 2 for example is by in the perforate of the fixed position of sheet metal, and its bending is formed.
As shown in Figures 2 and 3, the bend 2a of mounting strap 2 is provided with through hole 2i and 2k, and bend 2b is provided with through hole 2j and 2l.When mounting strap 2 is installed on pull bar 100, installation base 30,31,32,33 is inserted the state through hole 2c, 2d, 2e, the 2f from the inboard, mounting strap 2 is embedded in pull bar 100, make bolt 3a connect through hole 2i, 2j, and tighten fixing with nut 4a, make bolt 3b connect through hole 2k, 2l, and tighten fixing with nut 4b.And mounting strap 2 digs and is provided with window 2g, the 2h that is used for strainmeter 7d, 8d cylinder lever connecting rod 100.
Sensor 7 is constituted as has threaded hole 7a, 7b, 7c; Strainmeter 7d; Electric wire 7e.Sensor 7 is fixed in threaded hole 7a, 7b, 7c, thereby is fixed in sensor mount 5 by through hole 5e, the 5f that will connect sensor mount 5, bolt 21,22,23 screw threads of 5g.The strainmeter 7d on the surface of sensor 7 passes the window 2g of mounting strap 2 and is pressed into the surface of pull bar 100 by certain pressure, detects the pressure that puts on pull bar 100, and exports this signal by electric wire 7e.
Sensor mount 5 is provided with through hole 5a and the 5b that ladder bolt 9 is connected; Through hole 5c and 5d that ladder bolt 11 is connected; Through hole 5e, 5f, 5g that bolt 21,22,23 is connected.The diameter of through hole 5a and 5c is greater than spring 17,19 and packing ring 13,15, and the diameter of through hole 5b and 5d is less than spring 17,19, thereby makes spring 17,19 be stuck in the inlet of through hole 5b and 5d.
Ladder bolt 9 constitutes with the thick 9b of portion by cutting the threaded thin 9a of portion, and thin 9a of portion and the thick 9b of portion connect medium pore and the through hole 5a and the 5b of packing ring 13 and spring 17.Threaded hole has been cut by the central authorities of installation base 30, and its front end connects through hole 2c.The thin 9a of the portion screw thread that connects the ladder bolt 9 of through hole 5b is screwed into the threaded hole of the central authorities of installation base 30, the front end of the thick 9b of portion of ladder bolt 9, is the surperficial apical grafting of rank portion and installation base 30 and fixing.In addition, the structure of ladder bolt 11 and the installation base 31 also structure with ladder bolt 9 and installation base 30 is identical, so detailed.
Sensor 8 sides are explained, and sensor 8 is constituted as has threaded hole 8a, 8b, 8c; Strainmeter 8d; Electric wire 8e.Sensor 8 is fixed in threaded hole 8a, 8b, 8c, thereby is fixed in sensor mount 6 by through hole 6e, the 6f that will connect sensor mount 6, bolt 24,25,26 screw threads of 6g.The strainmeter 8d on the surface of sensor 8 passes the window 2h of mounting strap 2 and is pressed into the surface of pull bar 100 by certain pressure, detects the pressure that puts on pull bar 100, and exports this signal by electric wire 8e.
Sensor mount 6 is provided with through hole 6a and the 6b that ladder bolt 10 is connected; Through hole 6c and 6d that ladder bolt 12 is connected; Through hole 6e, 6f, 6g that bolt 24,25,26 is connected.The diameter of through hole 6a and 6c is greater than spring 18,20 and packing ring 14,16, and the diameter of through hole 6b and 6d is less than spring 18,20, thereby makes spring 18,20 be stuck in the inlet of through hole 6b and 6d.
The structure of ladder bolt 10 and installation base 32 is identical with the structure of ladder bolt 9 and installation base 30, so detailed.And the structure of ladder bolt 12 and the installation base 33 also structure with ladder bolt 9 and installation base 30 is identical, so detailed.
Next, with reference to accompanying drawing the situation that the pull bar sensor 1 of present embodiment is installed on pull bar 100 is explained.
To be expression be installed on stereographic map as the state of the pull bar 100 of tested 10000 dead axles with the mounting strap 2 of pull bar sensor 1 shown in Figure 1 to Fig. 4.
And Fig. 5 sees that from the V direction of Fig. 1 pull bar sensor 1 shown in Figure 1 is installed on the side view of the state of pull bar 100.In addition, right half part is represented with cut-open view in Fig. 5.
When mounting strap 2 was installed on pull bar 100, installation base 30,31,32,33 is inserted the state through hole 2c, 2d, 2e, the 2f from the inboard, the bend 2a that enlarges mounting strap 2 made pull bar 100 embeddings herein with the distance of 2b., make bolt 3a connect through hole 2i, 2j, and tighten fixingly with nut 4a, make bolt 3b perforation through hole 2k, 2l, and tighten fixing with nut 4b thereafter.
As mentioned above, with bolt 21,22,23 sensor 7 is installed on sensor mount 5 in advance, thereafter, with spring 17 and the packing ring 13 through hole 5a that packs into, and herein with 9 insertions of ladder bolt, with pack into the threaded hole of central authorities of installation base 30 of the thin 9a of portion, be screwed to the thick 9b of portion of ladder bolt 9 front end, be rank portion and installation base 30 surperficial apical grafting and till the stop.
Be screwed into ladder bolt 11 with ladder bolt 9 equally also screw thread.Preferably bit by bit alternately screw thread be screwed into ladder bolt 9 and ladder bolt 11.
In the present embodiment, if like this screw thread is screwed into the surperficial apical grafting of the rank portion of ladder bolt 9,11 and installation base 30 and till the stop, then strainmeter 7d is pressed into the surface of pull bar 100 by certain pressure.
Promptly, at the surperficial apical grafting of the rank portion of ladder bolt 9,11 and installation base 30,31 and under the state of stop, sensor mount 5 had not both pushed up the surface of installation base 30,31, the power that enlarges by spring 17,19 desires is pressed into pull bar 100 with sensor mount 5 again, and consequently strainmeter 7d is pressed into the surface of pull bar 100 by the certain pressure that is produced by spring 17,19.For example spring 17,19 is pushed with the power of 50kg respectively, then can strainmeter 7d be pressed into the surface of pull bar 100 with the power of 100kg, thereby not need torque management.
And, in the present embodiment, owing to be by two springs 17,19 a strainmeter 7d to be pressed into pull bar 100, so can not only not depart from but also stably push.
In addition, strainmeter 7d being pressed into the parts on the surface of pull bar 100, also can be the elastic body beyond the spring.
Sensor mount 6 sides as mentioned above, are used bolt 24,25,26 sensor installations 8 too in advance, thereafter,, and ladder bolt 10 inserted herein spring 18 and the packing ring 14 through hole 6a that packs into, and with ladder bolt 9 similarly screw thread be screwed into.Equally also screw thread is screwed into ladder bolt 12.
As described above, finish of the installation of the pull bar sensor 1 of present embodiment to pull bar 100, according to this pull bar sensor 1, because sensor installation fabricated section 5,6 after mounting strap 2 being installed on pull bar 100, so can make the Surface Vertical ground apical grafting of strainmeter 7d, 8d and pull bar 100, can prevent that strainmeter 7d, 8d are scratched.In addition, installation base and ladder bolt in the present embodiment, be " be fixed at mounting strap under the state of tested dead axle; the sensor mount that the sensor has been installed is installed on above-mentioned mounting strap, make the sectional fixture of the Surface Vertical ground apical grafting of the sensor and above-mentioned tested dead axle ".
And, in the present embodiment, if screw thread be screwed into the thick 9b of portion of ladder bolt 9 front end, be rank portion and installation base 30 surperficial apical grafting and till the stop, so because strainmeter 7d, 8d are pressed into the surface of pull bar 100 by spring 17,18,19,20 with certain pressure, so also do not need torque management.

Claims (8)

1. pressure testing device is characterized in that it has: mounting strap, and it is fixed in tested dead axle; Sensor, its detection puts on the pressure of above-mentioned tested dead axle; Sensor mount, it has installed the sensor in advance; Sectional fixture, it is fixed at above-mentioned mounting strap under the state of above-mentioned tested dead axle, and the sensor fabricated section that the sensor has been installed is installed on above-mentioned mounting strap, makes the Surface Vertical ground apical grafting of the sensor and above-mentioned tested dead axle.
2. pressure testing device is characterized in that it has: mounting strap, and it is fixed in tested dead axle; Sensor, its detection puts on the pressure of above-mentioned tested dead axle; Sensor mount, it has installed the sensor in advance; Sectional fixture, its sensor fabricated section that the sensor has been installed is installed on above-mentioned mounting strap,
Above-mentioned sectional fixture is: be installed on above-mentioned mounting strap installation base, be screwed into the ladder bolt of above-mentioned installation base with screw thread when the sensor fabricated section is installed to above-mentioned mounting strap,
Up to the rank of above-mentioned ladder bolt portion and above-mentioned installation base apical grafting and till the stop, this ladder bolt thread is screwed into this installation base, by certain pressure the sensor is pressed into the surface of above-mentioned tested dead axle thus.
3. pressure testing device according to claim 1 and 2 is characterized in that it is provided with the elastic body that the sensor is pressed into the surface of above-mentioned tested dead axle.
4. pressure testing device according to claim 3 is characterized in that, it is provided with a plurality of above-mentioned elastic bodys, the sensor is pressed into the surface of above-mentioned tested dead axle in a plurality of positions that this a plurality of elastic body acted on.
5. the installation method of a pressure testing device, it is characterized in that, mounting strap is fixed in tested dead axle, the sensor that in advance detection is put on the pressure of above-mentioned tested dead axle is installed on sensor mount, be fixed at above-mentioned mounting strap under the state of above-mentioned tested dead axle, the sensor fabricated section that the sensor has been installed is installed on above-mentioned mounting strap, makes the Surface Vertical ground apical grafting of the sensor and above-mentioned tested dead axle.
6. the installation method of a pressure testing device, it is characterized in that, the sensor that in advance detection is put on the pressure of tested dead axle is installed on sensor mount, after installation base is installed, mounting strap is fixed in above-mentioned tested dead axle, when the sensor fabricated section is installed on above-mentioned mounting strap, be screwed into the rank portion of ladder bolt of above-mentioned installation base and above-mentioned installation base apical grafting up to screw thread and till the stop, this ladder bolt thread is screwed into this installation base, by certain pressure the sensor is pressed into the surface of above-mentioned tested dead axle thus.
7. according to the installation method of claim 5 or 6 described pressure testing devices, it is characterized in that, the sensor is pressed into the surface of above-mentioned tested dead axle by elastic body.
8. the installation method of pressure testing device according to claim 7 is characterized in that, the sensor is pressed into the surface of above-mentioned tested dead axle in a plurality of positions that above-mentioned elastic body acted on.
CN 200610170531 2006-02-24 2006-12-21 Pressure testing device Pending CN101025379A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006048909A JP4261553B2 (en) 2006-02-24 2006-02-24 Pressure detection device
JP2006048909 2006-02-24

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CN101025379A true CN101025379A (en) 2007-08-29

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102043103A (en) * 2010-09-21 2011-05-04 上海雷博司电器有限公司 Pressure device for testing loop resistance of sealed pole
CN109429490A (en) * 2017-06-23 2019-03-05 克里凯文斯管线国际有限公司 The system and method for pipeline section for welded pipe line
US20220332629A1 (en) * 2019-10-03 2022-10-20 Northrop Grumman Systems Corporation System and method for fabricating an optical element

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5208636B2 (en) * 2008-09-16 2013-06-12 株式会社東京測器研究所 Measuring instrument for rotating shaft
JP5394790B2 (en) * 2009-03-27 2014-01-22 ミネベア株式会社 Pressure detection device
JP2013134195A (en) * 2011-12-27 2013-07-08 Minebea Co Ltd Strain detection device
JP5541759B2 (en) 2012-05-08 2014-07-09 株式会社原子力エンジニアリング Strain gauge holder
CN106671462A (en) * 2017-02-26 2017-05-17 王海平 Press fit sensor of cold pressing type oil press

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102043103A (en) * 2010-09-21 2011-05-04 上海雷博司电器有限公司 Pressure device for testing loop resistance of sealed pole
CN109429490A (en) * 2017-06-23 2019-03-05 克里凯文斯管线国际有限公司 The system and method for pipeline section for welded pipe line
US20220332629A1 (en) * 2019-10-03 2022-10-20 Northrop Grumman Systems Corporation System and method for fabricating an optical element
US11932567B2 (en) * 2019-10-03 2024-03-19 Northrop Grumman Systems Corporation System and method for fabricating an optical element

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Publication number Publication date
JP4261553B2 (en) 2009-04-30
JP2007225513A (en) 2007-09-06

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Open date: 20070829