CN104833289A - Soft tube inner diameter measurement device - Google Patents
Soft tube inner diameter measurement device Download PDFInfo
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- CN104833289A CN104833289A CN201410277166.8A CN201410277166A CN104833289A CN 104833289 A CN104833289 A CN 104833289A CN 201410277166 A CN201410277166 A CN 201410277166A CN 104833289 A CN104833289 A CN 104833289A
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Abstract
The invention provides a soft tube inner diameter measurement device. The device comprises a measuring head, an end cover, a measuring scale and a threaded rod; the measuring head is a hollow cone, and a side wall of the hollow cone is provided with a clamping groove penetrating the side wall in the generatrix direction; the end cover covers a cone bottom end of the measuring head, and the end cover is provided with a first through hole; and the measuring scale comprises a measuring rod and a positioning assembly connected to an end portion of the measuring rod, the positioning assembly is slidably disposed in the clamping groove in a penetrating manner, the measuring rod is disposed in the first through hole in the end cover in a penetrating manner, and the measuring rod is provided with a scale line. When measurement is performed, the measuring head extends into a soft tube firstly, the measuring head enables a soft tube support to be circular, and then the measuring scale is then moved to perform measurement for the inner diameter of the soft tube. Compared with a measurement mode that the inner diameter of the soft tube is pinched to be circular through a technical person in the prior art, the measurement mode of the invention enables measurement precision of the inner diameter of the soft tube to be greatly improved; and because the measurement method is simple, detection efficiency is also greatly improved.
Description
Technical field
The present invention relates to field of measuring technique, in particular to a kind of inner diameter measurement mechanism.
Background technology
At present, the flexible pipes such as rubber tube are comparatively extensive in manufacturing industry application, and such as automobile manufacturing enterprise, rubber tube can be used as fuel pipe, cooling water pipe, engine air inlet/outlet rubber hose etc.During the flexible pipes such as automobile rubber use as cooling water pipe, engine turnover tracheae, critical size comprises internal diameter size and tolerance fit thereof.The deviation of water pipe internal diameter size can cause vehicle to leak, and the problems such as vehicle casts anchor occur; Tracheal diameter dimensional discrepancy can cause dirty air to enter engine, reduces the problems such as engine life.Generally use vernier caliper to measure sebific duct internal diameter in current industry, but because sebific duct hardness is generally at shore 60-80 degree, directly with vernier caliper measurement rubber tube internal diameter, need artificially sebific duct to be pinched circle, first estimate sebific duct circularity, not only detection efficiency is very low for this kind of detection mode, and accuracy of detection is also poor, is unfavorable for standardized work.
Summary of the invention
Given this, the present invention proposes a kind of inner diameter measurement mechanism, be intended to solve the problem that the low and accuracy of detection difference of efficiency measured by flexible pipe.
An aspect, the present invention proposes a kind of inner diameter measurement mechanism, this device comprises: measuring head, end cap and dip stick.Wherein, measuring head is hollow cone, and the sidewall of hollow cone offers the draw-in groove running through sidewall along generatrix direction; End cap is covered in the cone bottom of measuring head, and, end cap offers the first through hole; Surveyors' staff comprises sounding rod and is connected to the positioning component of sounding rod end, and positioning component is arranged in draw-in groove slidably, and sounding rod is arranged in the first through hole on end cap, and, sounding rod is provided with scale.
Further, above-mentioned inner diameter measurement mechanism also comprises screw rod; Wherein, surveyors' staff offers the second through hole running through surveyors' staff vertically, the cone top closure of measuring head; Screw rod and the second through hole are spirally connected, and the first end of screw rod is plugged in the vertex of a cone end of measuring head.
Further, in above-mentioned inner diameter measurement mechanism, the second end and second through hole of screw rod are spirally connected.
Further, in above-mentioned inner diameter measurement mechanism, end cap is outward extended with handle along the inwall of connecting hole, and the sounding rod of surveyors' staff is arranged in handle; The outer wall of handle is provided with measuring basis.
Further, in above-mentioned inner diameter measurement mechanism, the sidewall of handle offers the open slot of the scale on display measurement bar vertically.
Further, in above-mentioned inner diameter measurement mechanism, the sidewall of sounding rod is provided with feather key vertically, and the inwall of handle is provided with the gathering sill matched with feather key vertically.
Further, in above-mentioned inner diameter measurement mechanism, positioning component comprises vertically arranged first positioning rule and the second positioning rule mutually.
Further, above-mentioned inner diameter measurement mechanism also comprises screw; Wherein, the sidewall of handle radially offers threaded hole, and screw is bolted in threaded hole.
Further, in above-mentioned inner diameter measurement mechanism, the cone bottom of measuring head has extended radially outward flange, and end cap is connected with flange by bolt.
Further, in above-mentioned inner diameter measurement mechanism, measuring head is hollow round table, and the vertex of a cone end of hollow round table is provided with column connector, and the end of column connector is provided with chamfering.
During measurement, inner diameter is first supported for circular state by measuring head by the present invention, and then measured by the internal diameter of traverse measurement scale to this flexible pipe, compared with prior art, the measuring accuracy of the inner diameter that the present invention improves widely, meanwhile, because this measuring method is comparatively simple, also detection efficiency is greatly increased; In addition, this measurement mechanism structure is comparatively simple, is easy to processing and installs.
Accompanying drawing explanation
By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit will become cheer and bright for those of ordinary skill in the art.Accompanying drawing only for illustrating the object of preferred implementation, and does not think limitation of the present invention.And in whole accompanying drawing, represent identical parts by identical reference symbol.In the accompanying drawings:
The stereographic map of the inner diameter measurement mechanism that Fig. 1 provides for the embodiment of the present invention;
The sectional view of the inner diameter measurement mechanism that Fig. 2 provides for the embodiment of the present invention;
The structural representation of the inner diameter measurement mechanism that Fig. 3 provides for the embodiment of the present invention.
Embodiment
Below with reference to accompanying drawings exemplary embodiment of the present disclosure is described in more detail.Although show exemplary embodiment of the present disclosure in accompanying drawing, however should be appreciated that can realize the disclosure in a variety of manners and not should limit by the embodiment set forth here.On the contrary, provide these embodiments to be in order to more thoroughly the disclosure can be understood, and complete for the scope of the present disclosure can be conveyed to those skilled in the art.
See Fig. 1, Fig. 2, the stereographic map of the inner diameter measurement mechanism that Fig. 1 provides for the embodiment of the present invention, the inner diameter measurement mechanism cut-open view in axial direction that Fig. 2 provides for the embodiment of the present invention.
As shown in the figure, this measurement mechanism comprises: measuring head 1, end cap 2 and dip stick 3.
Measuring head 1 is hollow cone, and this hollow cone can be hollow cone or hollow round table, and the cone bottom of this hollow cone is openend.If this hollow cone hollow cone, then the bottom surface of hollow cone is openend; If hollow round table, then the cone bottom that the radial dimension of hollow round table is larger is openend.The sidewall of this hollow cone offers the draw-in groove 11 running through sidewall along generatrix direction, this draw-in groove 11 also runs through the bus of this hollow cone.
End cap 2 is covered in the openend of measuring head 1, and, end cap 2 offers the first through hole; In addition, the sidewall of end cap 2 is provided with measuring basis.
Surveyors' staff 3 comprises columned sounding rod 31 and is connected to the positioning component of cylindric sounding rod 31 end; Wherein, positioning component is arranged in draw-in groove 11, and positioning component can slide along draw-in groove 11; Sounding rod 31 is arranged in the first through hole on end cap 2, and can slide along the first through hole, and sounding rod 31 is provided with scale.
In the present embodiment, measuring head 1, end cap 2 and surveyors' staff 3 are coaxially arranged.
During measurement, first promote sounding rod 31, the inner face of the vertex of a cone end of the end of positioning component and measuring head 1 is fitted, and now, the initial scale on sounding rod 31 aligns with the measuring basis on end cap 2; Then measuring head 1 is stretched in tested flexible pipe, when the conical surface of measuring head 1 and tested hose inner wall are in complete contact condition, the sounding rod 31 of the scale of traverse measurement simultaneously 3, the positioning component of sounding rod 31 end and the end face of tested flexible pipe is made to be in fit-state, now, the radial dimension being positioned at the xsect of the hollow cone of this flexible pipe end is the internal diameter of this tested flexible pipe, and the radial dimension in this cross section can pass through following formulae discovery: R=tan (α/2) * L+r; In this formula, R is the radius of tested flexible pipe, and α is the cone angle of measuring head 1, L be positioning component end face 321 to the vertex of a cone inwall 14 between distance; R is the internal diameter of the vertex of a cone end of measuring head 1.
In the present embodiment, radial dimension stamp positioning component being positioned at the xsect of the hollow cone of each position, on sounding rod 31, can read inner diameter in real time by the scale on sounding rod 31.
Can find out, during measurement, tested inner diameter is first supported to circular state by measuring head by the present embodiment, and then measured by the internal diameter of traverse measurement scale to this tested flexible pipe, compared with prior art, the present embodiment not only increases the measuring accuracy of tested inner diameter, simultaneously, because this measuring method is comparatively simple, also greatly increase detection efficiency; In addition, this measurement mechanism structure is comparatively simple, is easy to processing and installs.
See Fig. 1, Fig. 2, above-described embodiment also comprises screw rod 4.Wherein, surveyors' staff 3 offers the second through hole running through surveyors' staff 3 vertically, the cone top closure of measuring head 1; Screw rod 4 and this second through hole are spirally connected, and the first end (left end shown in Fig. 2) of screw rod 4 is plugged in the vertex of a cone end of measuring head 1.Before measurement, first screw screw rod 4, first end due to screw rod 4 is plugged in the vertex of a cone end of measuring head 1, so surveyors' staff 3 vertically can relative motion, fit to make the positioning component in surveyors' staff 3 and vertex of a cone end, now, the initial scale on sounding rod 31 and the measuring basis on end cap 2 flush, correcting measuring scale 3.
Before measurement, the present embodiment first by screw rod 4 correcting measuring scale 3, can obtain the measuring accuracy of this surveyors' staff 3, and then greatly increase the accuracy of measurement of this surveyors' staff.
Preferably, see Fig. 2, the second end (right-hand member shown in Fig. 2) and second through hole of screw rod 4 are spirally connected.Particularly, screw rod 4 is only provided with external thread in the part near the second end, and other parts are smooth shaft.The screw thread set-up mode of the screw rod 4 in the present embodiment is convenient to install and adjusting screw(rod) 4.
See Fig. 1, in the various embodiments described above, end cap 2 is extended with handle 22 along the inwall outside (right side shown in Fig. 2) of the first through hole, and the sounding rod 31 of surveyors' staff 3 is arranged in handle 22.Can find out, the setting of handle 22, sounding rod 31 part can be made to be placed in handle 22, greatly increase the stability of sounding rod 31, and then also can improve the accuracy of measurement.In the present embodiment, the outer wall of handle 22 is provided with measuring basis, during calibration, the initial scale on sounding rod 31 and the measuring basis on handle 22 should be made to flush.
Preferably, see 1, in above-described embodiment, the sidewall of handle 22 offers open slot 221 vertically, with the scale on display measurement bar 31.
Further preferably, the sidewall of sounding rod 31 is convexly equipped with feather key 311 vertically, and the inwall of handle 22 offers gathering sill vertically, and feather key 311 matches with gathering sill, to carry out circumference location to sounding rod 31, the scale of sounding rod 31 is made to correspond to open slot 221.
See Fig. 1, in the various embodiments described above, the positioning component in surveyors' staff 3 comprises vertically arranged first positioning rule 32 and the second positioning rule 33 mutually.During measurement, the first positioning rule 32 and the second positioning rule 33 are fitted, to make tested flexible pipe coaxial with surveyors' staff 3 with the end of tested flexible pipe.Can find out, the setting of the first positioning rule 32 and the second positioning rule 33, can ensure that tested flexible pipe and measuring head 1 are coaxially installed, greatly increase measuring accuracy.
See Fig. 2, Fig. 3, the various embodiments described above also comprise screw 5.Wherein, the sidewall of handle 22 radially offers threaded hole, and screw 5 is bolted in this threaded hole.When the first positioning rule 32 and the second positioning rule 33 are fitted with the end face of tested flexible pipe, screw screw 5, the end of screw 5 is pushed up and is pressed on sounding rod 31, to be fixed dip stick 3, the scale preventing this measurement mechanism mobile from causing moves, and then reads the internal diameter of tested flexible pipe.Arranging of screw 5 can improve measuring accuracy.
See Fig. 1 to Fig. 3, in a kind of embodiment that this is bright, the cone bottom of measuring head 1 has extended radially outward flange 12, and end cap 2 is connected with flange 12 by bolt.
In another embodiment of the invention, measuring head 1 also can be one-body molded with end cap 2, now, end cap 2 also should offer the criss-cross mounting groove for installing positioning component.
See Fig. 3, the measuring head 1 in the various embodiments described above is hollow round table, and the vertex of a cone end of this hollow round table is provided with column connector 13, and the end of column connector 13 is provided with chamfering 131.The setting of chamfering 131, can prevent from scratching tested hose inner wall in installation process.
It should be noted that, in the present embodiment, the measuring accuracy of measurement mechanism is relevant with the cone angle of measuring head 1, and cone angle is less, and measuring accuracy is higher, and the concrete value of cone angle can be determined according to actual conditions, and the concrete value of the present invention to cone angle does not do any restriction.In the present embodiment, the measurement range of measurement mechanism is decided by the vertex of a cone and the cross sectional dimensions at the cone end.During concrete enforcement, consider manufacturing cost and measuring accuracy, tan (α/2)=1/2 in the embodiment of the present invention, can be got; Wherein, α is the cone angle of measuring head.
To sum up, during measurement, the embodiment of the present invention first makes tested inner diameter be supported to circular state by measuring head, and then measured by the internal diameter of traverse measurement scale to this tested flexible pipe, with be pinch compared with round metering system by tested inner diameter people in prior art, the measuring accuracy of the tested inner diameter that the embodiment of the present invention improves widely, simultaneously, because this measuring method is comparatively simple, also greatly increase detection efficiency; In addition, this measurement mechanism structure is comparatively simple, is easy to processing and installs.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. an inner diameter measurement mechanism, is characterized in that, comprising: measuring head (1), end cap (2) and dip stick (3); Wherein,
Described measuring head (1) is hollow cone, and the sidewall of described hollow cone offers the draw-in groove (11) running through described sidewall along generatrix direction;
Described end cap (2) is covered in the cone bottom of described measuring head (1), and (2) offer the first through hole to described end cap;
Described surveyors' staff (3) comprises sounding rod (31) and is connected to the positioning component of described sounding rod (31) end, described positioning component is arranged in described draw-in groove (11) slidably, described sounding rod (31) is arranged in the first through hole on described end cap (2), further, described sounding rod (31) is provided with scale.
2. inner diameter measurement mechanism as claimed in claim 1, is characterized in that, also comprise screw rod (4); Wherein,
Described surveyors' staff (3) offers the second through hole running through described surveyors' staff (3) vertically; The cone top closure of described measuring head (1);
Described screw rod (4) and described second through hole are spirally connected, and the first end of described screw rod (4) is plugged in the vertex of a cone end of described measuring head (1).
3. inner diameter measurement mechanism as claimed in claim 2, it is characterized in that, the second end and described second through hole of described screw rod (4) are spirally connected.
4. inner diameter measurement mechanism as claimed in claim 1, it is characterized in that, described end cap (2) is outward extended with handle (22) along the inwall of described first through hole, and the sounding rod (31) of described surveyors' staff (3) is arranged in described handle (22); The outer wall of described handle (22) is provided with measuring basis.
5. inner diameter measurement mechanism as claimed in claim 4, it is characterized in that, the sidewall of described handle (22) offers the open slot (221) for showing the scale on described sounding rod (31) vertically.
6. inner diameter measurement mechanism as claimed in claim 5, it is characterized in that, the sidewall of described sounding rod (31) is provided with feather key (311) vertically, and the inwall of described handle (22) is provided with the gathering sill matched with described feather key (311) vertically.
7. the inner diameter measurement mechanism according to any one of claim 1 to 6, is characterized in that, described positioning component comprises vertically arranged first positioning rule (32) and the second positioning rule (33) mutually.
8. the inner diameter measurement mechanism according to any one of claim 1 to 6, is characterized in that, also comprises screw (5); Wherein, the sidewall of described handle (22) radially offers threaded hole, and described screw (5) is bolted in described threaded hole.
9. inner diameter measurement mechanism as claimed in claim 8, is characterized in that,
The cone bottom of described measuring head (1) has extended radially outward flange (12), and described end cap (2) is connected with described flange (12) by bolt.
10. the inner diameter measurement mechanism according to any one of claim 1 to 6, it is characterized in that, described measuring head (1) is hollow round table, the vertex of a cone end of described hollow round table is provided with column connector (13), and the end of described column connector (13) is provided with chamfering (131).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410277166.8A CN104833289B (en) | 2014-06-19 | 2014-06-19 | Inner diameter measurement apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410277166.8A CN104833289B (en) | 2014-06-19 | 2014-06-19 | Inner diameter measurement apparatus |
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| Publication Number | Publication Date |
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| CN104833289A true CN104833289A (en) | 2015-08-12 |
| CN104833289B CN104833289B (en) | 2017-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410277166.8A Active CN104833289B (en) | 2014-06-19 | 2014-06-19 | Inner diameter measurement apparatus |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105371731A (en) * | 2015-12-04 | 2016-03-02 | 中国一冶集团有限公司 | Soft annular element internal diameter measurement apparatus |
| CN105910522A (en) * | 2016-05-24 | 2016-08-31 | 长江大学 | Stretching expanded head anchor hole inner diameter measuring device |
| CN106500568A (en) * | 2016-12-16 | 2017-03-15 | 苏州美瑞时科技有限公司 | A kind of adjustable height instrument gauge head |
| CN108398246A (en) * | 2017-02-07 | 2018-08-14 | 中国石油化工股份有限公司 | Sliding sleeve specification detection device |
| CN108917545A (en) * | 2018-09-18 | 2018-11-30 | 南京信息职业技术学院 | Multifunctional measuring unit and measuring method for variable-diameter deep hole detection system |
| CN109282741A (en) * | 2018-11-15 | 2019-01-29 | 福建工程学院 | Calipers and its method inside and outside bamboo |
| CN109374030A (en) * | 2018-10-25 | 2019-02-22 | 南京工程学院 | A kind of automatic traction device for the detection of multi-step deep hole |
| CN113124733A (en) * | 2021-04-16 | 2021-07-16 | 江苏浚荣升新材料科技有限公司 | Finished product detection process for rubber ring production |
| CN114459308A (en) * | 2021-12-24 | 2022-05-10 | 中海油能源发展股份有限公司 | Drill bit nozzle size measuring tool for petroleum drilling field and use method thereof |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105371731A (en) * | 2015-12-04 | 2016-03-02 | 中国一冶集团有限公司 | Soft annular element internal diameter measurement apparatus |
| CN105910522B (en) * | 2016-05-24 | 2019-04-12 | 长江大学 | A kind of drawing enlarged footing anchor hole inside caliper |
| CN105910522A (en) * | 2016-05-24 | 2016-08-31 | 长江大学 | Stretching expanded head anchor hole inner diameter measuring device |
| CN106500568A (en) * | 2016-12-16 | 2017-03-15 | 苏州美瑞时科技有限公司 | A kind of adjustable height instrument gauge head |
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| CN109374030A (en) * | 2018-10-25 | 2019-02-22 | 南京工程学院 | A kind of automatic traction device for the detection of multi-step deep hole |
| CN109374030B (en) * | 2018-10-25 | 2024-05-24 | 南京工程学院 | Automatic traction device for multi-step deep hole detection |
| CN109282741B (en) * | 2018-11-15 | 2023-10-10 | 福建工程学院 | Bamboo inner and outer diameter measuring device and method |
| CN109282741A (en) * | 2018-11-15 | 2019-01-29 | 福建工程学院 | Calipers and its method inside and outside bamboo |
| CN113124733A (en) * | 2021-04-16 | 2021-07-16 | 江苏浚荣升新材料科技有限公司 | Finished product detection process for rubber ring production |
| CN114459308A (en) * | 2021-12-24 | 2022-05-10 | 中海油能源发展股份有限公司 | Drill bit nozzle size measuring tool for petroleum drilling field and use method thereof |
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