CN202048874U - Six-claw double measuring position internal diameter measuring instrument - Google Patents
Six-claw double measuring position internal diameter measuring instrument Download PDFInfo
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- CN202048874U CN202048874U CN201120122443XU CN201120122443U CN202048874U CN 202048874 U CN202048874 U CN 202048874U CN 201120122443X U CN201120122443X U CN 201120122443XU CN 201120122443 U CN201120122443 U CN 201120122443U CN 202048874 U CN202048874 U CN 202048874U
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- measuring
- measurement
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- microdrum
- location
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- 210000000078 claw Anatomy 0.000 claims abstract description 28
- 238000005259 measurement Methods 0.000 claims description 35
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
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Abstract
本实用新型公开一种六爪双测位内径测量仪，其特征是定位机构是在测量头前端圆周面上贯穿设置均匀分布的三只可沿径向位移的定位爪，各定位爪中心端是以其楔形斜面与固联在定位丝杆前端的定位锥侧部锥面相抵；在定位丝杆尾部分别设置有定位微分筒和定位测力机构；测量机构是在测量头的前端圆周面上贯穿设置与定位爪处在不同的轴向位置上、且均匀分布的三只可径向位移的测量爪，各测量爪的中心端是以其楔形斜面与固联在测量丝杆前端的测量锥的侧部锥面相抵；在测量丝杆的尾部分别设置测量微分筒和测量测力装置。本实用新型测量过程重复性好、精度高。
The utility model discloses a six-claw double-positioning internal diameter measuring instrument, which is characterized in that the positioning mechanism is provided with three positioning claws evenly distributed on the peripheral surface of the front end of the measuring head, which can be displaced along the radial direction, and the central end of each positioning claw is Its wedge-shaped inclined surface is offset against the side cone surface of the positioning cone fixedly connected to the front end of the positioning screw; the positioning differential cylinder and the positioning force-measuring mechanism are respectively arranged at the tail of the positioning screw; Set three radially displaceable measuring claws that are at different axial positions from the positioning claws and evenly distributed. The side taper surfaces are offset; the measuring differential cylinder and the measuring force measuring device are respectively arranged at the tail of the measuring screw. The utility model has good repeatability and high precision in the measuring process.
Description
Technical field
The utility model relates to a kind of device that shoulder hole is positioned and measures of being used for.
Background technology
In the prior art, manufacturer and inspection department are to the measurement in ladder aperture, measuring accuracy according to the aperture, adopt general vernier caliper, tool microscope mostly, perhaps adopt special-purpose inner diameter measurement instrument, as piecemeal card amounts such as three-jaw micrometer inside caliper, dial bore gage and clock gauges, labor intensity of operating staff is big like this, and is very easily tired; If three-jaw micrometer inside caliper and measured hole axis tilt cause measuring error big.
The utility model content
The utility model is for avoiding above-mentioned existing in prior technology weak point, providing a kind of six pawls two location internal diameter measuring instruments, and is concentric with measured hole to guarantee measuring instrument, thereby guarantees measuring accuracy.
The utility model technical solution problem adopts following technical scheme:
The design feature of the two location internal diameter measuring instruments of the utility model six pawls is to be made of detent mechanism, measuring mechanism and force measuring machine:
Described detent mechanism is to run through equally distributed three locating detents of displacement radially only are set on the nose circle side face of measuring head, and the center-side of described each locating detent is to offset with its wedge shape inclined-plane and the sidepiece conical surface that connects firmly at the locating cone of location screw mandrel front end; Afterbody at the location screw mandrel is respectively arranged with location microdrum and location force measuring machine;
Described measuring mechanism is to run through to be provided with on the nose circle side face of measuring head to be on the different axial locations with described locating detent and equally distributed three measuring claws of radial displacement only, the center-side of described each measuring claw be with its wedge shape inclined-plane with connect firmly the sidepiece conical surface of boring and offset in the measurement of measuring the screw mandrel front end; Afterbody at described measurement screw mandrel is provided with the measurement microdrum respectively and measures device for measuring force;
Described measurement screw mandrel, measure microdrum and measure device for measuring force and be set to a cannulated sleeve, and measure the location screw mandrel of screw mandrel and run through described cannulated sleeve for concentric setting.
The design feature of the two location internal diameter measuring instruments of the utility model six pawls also is:
Described measurement device for measuring force is formed by changeing cap, compression spring, first ratchet, second ratchet and pressing plate; Wherein, described compression spring is arranged between the end face of the right-hand member shaft shoulder of described measurement microdrum and described first ratchet; Described first ratchet and the second ratchet kink are on the right-hand member axle of measuring microdrum, described commentaries on classics cap is compressed by pressing plate, described pressing plate is fixed on the axle head of described measurement microdrum right side by described pressing plate gib screw, the tail end of described measurement screw mandrel with measure that microdrum is fastening to be connected.
Outer end at described locating detent and measuring claw is respectively arranged with groove, places to be used to tensioner circle that locating detent or measuring claw are resetted in described groove.
It is identical arc surface that the outer face of described locating detent and measuring claw is set to the fore end outer circumference of measuring head.
Compared with the prior art, the utility model beneficial effect is embodied in:
The utility model is the improvement to the three-jaw micrometer inside caliper, and three measuring claws are concentric setting with increasing by three locating detents that are provided with, measuring process good reproducibility, accuracy of detection height, detection efficiency height.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is that the utility model is measured the device for measuring force structural representation;
Fig. 4 is the B-B sectional view of Fig. 3;
Fig. 5 is the schematic top plan view of Fig. 3;
Fig. 6 is the C-C sectional view of Fig. 5;
Number in the figure: 1 locating detent; 2 measuring claws; 3 measuring heads; 4 sleeves; 5 location screw mandrels; 6 measure screw mandrel; 7 fixed muffles; 8 adjust screw; 9 measure microdrum; 10 measure device for measuring force; 11 location microdrums; 12 location device for measuring force; 13 tensioner circles; 14 change cap; 15 compression springs; 16 first ratchets; 17 second ratchets; 18 pressing plates; 19 pressing plate gib screws.
Embodiment
Referring to Fig. 1 and Fig. 2, present embodiment is to be made of detent mechanism, measuring mechanism and force measuring machine, wherein:
Detent mechanism is to run through equally distributed three locating detents 1 of radially displacement only are set on the nose circle side face of measuring head 3, and the center-side of each locating detent 1 is to offset with its wedge shape inclined-plane and the sidepiece conical surface that connects firmly at the locating cone of location screw mandrel 5 front ends; Afterbody at location screw mandrel 5 is respectively arranged with location microdrum 11 and location force measuring machine 12;
Measuring mechanism is to run through to be provided with on the nose circle side face of measuring head 3 to be on the different axial locations with locating detent 1 and equally distributed three measuring claws 2 of radial displacement only, the center-side of each measuring claw 2 be with its wedge shape inclined-plane with connect firmly the sidepiece conical surface of boring and offset in the measurement of measuring screw mandrel 6 front ends; Measurement microdrum 9 is set respectively and measures device for measuring force 10 at the afterbody of measuring screw mandrel 6;
Measure screw mandrel 6, measurement microdrum 9 and measurement device for measuring force 10 and be set to a cannulated sleeve, run through described cannulated sleeve for the location screw mandrel 5 of concentric setting with measurement screw mandrel 6.
Referring to Fig. 3, Fig. 4, Fig. 5 and Fig. 6; Location device for measuring force 12 in the present embodiment has identical version with measurement device for measuring force 10, wherein, measures device for measuring force 10 and forms by changeing cap 14, compression spring 15, first ratchet 16, second ratchet 17 and pressing plate 18; Wherein, compression spring 15 is arranged between the end face of the right-hand member shaft shoulder of measuring microdrum 9 and first ratchet 16; First ratchet 16 and second ratchet, 17 kinks are on the right-hand member axle of measuring microdrum 9, changeing cap 14 is compressed by pressing plate 18, pressing plate 18 is fixed on by pressing plate gib screw 19 and measures on the microdrum 9 right side axle heads, measure the tail end and measurement 9 fastening connections of microdrum of screw mandrel 6, the size of dynamometry is controlled by the profile of tooth of first ratchet 16 and second ratchet 17 and the friction force of compression spring 15 generations, when ergometry had exceeded friction force, second ratchet 17 skidded on first ratchet, 16 flank of tooth.
In concrete the enforcement, can accurately reset, be provided with groove, in groove, be placed with tensioner circle 13, be provided with groove too, in groove, be placed with the tensioner circle in the outer end of measuring claw 2 in locating detent 1 outer end in order to make locating detent 1 and measuring claw 2.
It is identical arc surface that the outer face of locating detent 1 and measuring claw 2 is set to the fore end outer circumference of measuring head 3.
In concrete the enforcement, the front end of location screw mandrel 5 is to form screw thread pair with measuring head 3, the afterbody of location screw mandrel 5 is fixedly connected with location microdrum 11, when rotational positioning microdrum 11, drive location screw mandrel 5 vertically to front end one side shifting of location screw mandrel, make locating detent 1 extend radially by the locating cone of locating screw mandrel 5 front ends; When the microdrum 11 of backward rotation location, drive location screw mandrel 5 vertically to afterbody one side shifting of location screw mandrel, under the elastic force effect of tensioner circle 13, locating detent 1 is radially return.
In concrete the enforcement, measuring screw mandrel 6 front ends is to form screw thread pair with measuring head 3, measuring screw mandrel 6 afterbodys is fixedly connected with measurement microdrum 9, when rotating measurement microdrum 9, drive and measure screw mandrel 6, measuring claw 2 is extended radially by the measurement awl of measuring screw mandrel 6 front ends vertically to front end one side shifting of measuring screw mandrel; When backward rotation is measured microdrum 9, drive and measure screw mandrel 6 vertically towards afterbody one side shifting of measuring screw mandrel, under the elastic force effect of tensioner circle, measuring claw 2 is radially withdrawn.
Referring to Fig. 3 and Fig. 4, in concrete the enforcement, wide equating between uniform two circular arc boss that protrude out vertically on second ratchet, 17 end faces, the width of the circular arc boss on second ratchet 17 and the groove that changes cap 14 rear ends,, commentaries on classics cap 14 rotates so that can driving second ratchet 17.The right side of second ratchet 17 is to be fixed by pressing plate 18.
Referring to Fig. 5 and Fig. 6, uniform two arc cams that protrude out vertically on first ratchet, 16 end faces, measuring on the microdrum 9 right-hand member axles also, correspondence is provided with two circular arc boss, wide equating between the groove of two arc cams, make the ratchet 16 of winning can drive measurement microdrum 9 and rotate on the width of measuring the circular arc boss on the microdrum right-hand member axle and first ratchet.Drive path is: rotate cap 14 and rotate to drive second ratchet 17, by the rotation of second ratchet 17 by frictional force drives first ratchet 16, drive the rotation of measuring microdrum 9 by first ratchet 16, implement to measure.
What be provided with routinely is: cylindrical hole matches with the external cylindrical surface of sleeve 4 in the fixed muffle 7, fixed muffle 7 usefulness are adjusted screw 8 and are fixed on the sleeve 4, be carved with the skimming reading scale on the face of cylinder, the outside of fixed muffle 7, the side at the axial graticule of skimming reading scale is carved with the measurement range numeral.Measure on the face of cylinder, the outside of microdrum 9 and be carved with the intensive reading scale, during reading, with the end face of intensive reading scale as the skimming reading index, to skim the axial graticule of scale as precision index, read integral part (skimming reading scale) earlier, read fraction part size (intensive reading scale) again, promptly can read whole numerical value.
Measuring process:
The locating detent 1 that at first will reset inserts tested pilot hole, positioning of rotating microdrum 11, stretch out near tested pilot hole up to locating detent 1, continue positioning of rotating device for measuring force 12 again, make locating detent 1 contact with tested pilot hole, when first ratchet in locating device for measuring force 12 and second ratchet send and trackslip the sound three times, stop operating, locating detent 1 location finishes.The wheel measuring microdrum 9 then, stretch out near measured hole up to measuring claw 2, continue wheel measuring device for measuring force 10 again, make measuring claw 2 contact with measured hole, when first ratchet 1 in measuring device for measuring force 10 and second ratchet 17 send and trackslip the sound three times, stop operating,, read tested aperture value according to the index value of measuring microdrum 9.
Calibrate in the following manner before the measurement:
The measuring claw 2 that will reset inserts in the standard sample hole, wheel measuring microdrum 9, stretch out near the standard sample hole up to measuring claw 2, continue wheel measuring device for measuring force 10 again, make measuring claw 2 contact with the standard sample hole, ratchet in measuring device for measuring force 10 skids three times the time relatively, stop operating, carry out reading, if indicating value has error, unclamp the set screw 8 on the fixed muffle 7, rotational fixation sleeve 7, groove alignment criteria sample hole value on fixed muffle is tightened the set screw 8 on the fixed muffle 7 again.
Claims (4)
1. two location internal diameter measuring instruments of a pawl is characterized in that being made of detent mechanism, measuring mechanism and force measuring machine:
Described detent mechanism is to run through equally distributed three locating detents of displacement (1) radially only are set on the nose circle side face of measuring head (3), and the center-side of described each locating detent (1) is to offset with its wedge shape inclined-plane and the sidepiece conical surface that connects firmly at the locating cone of location screw mandrel (5) front end; Afterbody at location screw mandrel (5) is respectively arranged with location microdrum (11) and location force measuring machine (12);
Described measuring mechanism is to run through to be provided with on the nose circle side face of measuring head (3) to be on the different axial locations with described locating detent (1) and equally distributed three measuring claws of radial displacement (2) only, the center-side of described each measuring claw (2) be with its wedge shape inclined-plane with connect firmly the sidepiece conical surface of boring and offset in the measurement of measuring screw mandrel (6) front end; Afterbody at described measurement screw mandrel (6) is provided with measurement microdrum (9) respectively and measures device for measuring force (10);
Described measurement screw mandrel (6), measurement microdrum (9) and measurement device for measuring force (10) are set to a cannulated sleeve, run through described cannulated sleeve with measurement screw mandrel (6) for the location screw mandrel (5) of concentric setting.
2. the two location internal diameter measuring instruments of six pawls according to claim 1 is characterized in that described measurement device for measuring force (10) forms by changeing cap (14), compression spring (15), first ratchet (16), second ratchet (17) and pressing plate (18); Wherein, described compression spring (15) is arranged between the end face of the right-hand member shaft shoulder of described measurement microdrum (9) and described first ratchet (16); Described first ratchet (16) and second ratchet (17) kink are on the right-hand member axle of measuring microdrum (9), described commentaries on classics cap (14) is compressed by pressing plate (18), described pressing plate (18) is fixed on the axle head of described measurement microdrum (9) right side by described pressing plate gib screw (19), the tail end of described measurement screw mandrel (6) and measurement fastening connection of microdrum (9).
3. the two location measuring instruments of six pawls according to claim 1 is characterized in that being respectively arranged with groove in the outer end of described locating detent (1) and measuring claw (2), and placement is used to tensioner circle that locating detent (1) or measuring claw (2) are resetted in described groove.
4. the fore end outer circumference that the two location measuring instruments of six pawls according to claim 1, the outer face that it is characterized in that described locating detent (1) and measuring claw (2) are set to measuring head (3) is identical arc surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120122443XU CN202048874U (en) | 2011-04-22 | 2011-04-22 | Six-claw double measuring position internal diameter measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120122443XU CN202048874U (en) | 2011-04-22 | 2011-04-22 | Six-claw double measuring position internal diameter measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202048874U true CN202048874U (en) | 2011-11-23 |
Family
ID=44989181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120122443XU Expired - Lifetime CN202048874U (en) | 2011-04-22 | 2011-04-22 | Six-claw double measuring position internal diameter measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202048874U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261882A (en) * | 2011-04-22 | 2011-11-30 | 合肥工业大学 | Six-claw double-measurement-position internal diameter measuring instrument |
| CN102967203A (en) * | 2012-11-14 | 2013-03-13 | 无锡麦铁精密机械制造有限公司 | Tensioning core rod |
-
2011
- 2011-04-22 CN CN201120122443XU patent/CN202048874U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261882A (en) * | 2011-04-22 | 2011-11-30 | 合肥工业大学 | Six-claw double-measurement-position internal diameter measuring instrument |
| CN102261882B (en) * | 2011-04-22 | 2012-11-21 | 合肥工业大学 | Six-claw double-measurement-position internal diameter measuring instrument |
| CN102967203A (en) * | 2012-11-14 | 2013-03-13 | 无锡麦铁精密机械制造有限公司 | Tensioning core rod |
| CN102967203B (en) * | 2012-11-14 | 2016-05-25 | 无锡麦铁精密机械制造有限公司 | A kind of tensioner plug |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111123 Effective date of abandoning: 20130227 |
|
| RGAV | Abandon patent right to avoid regrant |