GB2507915A - Internal thread micrometer - Google Patents

Internal thread micrometer Download PDF

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Publication number
GB2507915A
GB2507915A GB1403034.0A GB201403034A GB2507915A GB 2507915 A GB2507915 A GB 2507915A GB 201403034 A GB201403034 A GB 201403034A GB 2507915 A GB2507915 A GB 2507915A
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GB
United Kingdom
Prior art keywords
measuring
cylinder
rod
internal thread
bent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB1403034.0A
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GB201403034D0 (en
GB2507915B (en
Inventor
Shengqiang Sun
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SUZHOU BLUE KING MACHINE TOOLS TECHNOLOGY CO Ltd
Original Assignee
SUZHOU BLUE KING MACHINE TOOLS TECHNOLOGY CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to CN201110224688 priority Critical
Application filed by SUZHOU BLUE KING MACHINE TOOLS TECHNOLOGY CO Ltd filed Critical SUZHOU BLUE KING MACHINE TOOLS TECHNOLOGY CO Ltd
Priority to PCT/CN2012/001064 priority patent/WO2013020373A1/en
Publication of GB201403034D0 publication Critical patent/GB201403034D0/en
Publication of GB2507915A publication Critical patent/GB2507915A/en
Application granted granted Critical
Publication of GB2507915B publication Critical patent/GB2507915B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00Instruments as specified in the subgroups and characterised by the use of mechanical measuring means
    • G01B3/18Micrometers
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00Instruments as specified in the subgroups and characterised by the use of mechanical measuring means
    • G01B3/46Plug gauges for internal dimensions with engaging surfaces which are at a fixed distance, although they may be preadjustable
    • G01B3/48Plug gauges for internal dimensions with engaging surfaces which are at a fixed distance, although they may be preadjustable for internal screw-threads
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical means
    • G01B5/08Measuring arrangements characterised by the use of mechanical means for measuring diameters
    • G01B5/12Measuring arrangements characterised by the use of mechanical means for measuring diameters internal diameters

Abstract

An internal thread micrometer, comprising: replaceable measuring heads (13 and 14), bent measuring rods (12 and 15), a drive shaft (28), a supporting sleeve cylinder (2), a differential cylinder (4), an adjustment knob (7), a ruler (9), and a digital display device (56) dedicated for digitally displaying the internal thread micrometer. The two replaceable measuring heads (13 and 14) are arranged respectively on the fixed bent measuring rod (12) and on the mobile bent measuring rod (15). The fixed bent measuring rod (12) and the ruler (9) are connected. The mobile bent measuring rod (15), the supporting sleeve cylinder (2), and the drive shaft (28) are connected. The drive shaft (28), the differential cylinder (4), and the adjustment knob (7) are connected. The supporting sleeve cylinder (2), the ruler (9), and the differential cylinder (4) are connected. The digital display device (56) is arranged on the ruler (9) dedicated for digitally displaying the internal thread micrometer.

Description

INTERNAL THREAD MICROMETER.
FIELD or THE INVENTION
1(10011 TiThe present invention relates to an internal thread micrornetei more particularly to an inUrnal thread micrometer capable of mesmi:ng the pitch diameter of internal. dreads quickly.
B.ACK:GROJl OF THE NVBNTICN 10002] At. present, the prIor measwlng tools and measuring methods.
cannot measure the pitch diameter of internal threads quickly5 easily or precisely In traditional methods fbi meastuing the pitch diameter of internal threads the pitch diameter of the processed. internal threads is pretested by go and not go thread. gauges. H..o wever, the operator usually: fails to precisely estim ate the amount of pitch diam.eter of the threads to be processed. when the.gp thread gauge cannot pass through yet.
Sometimes the.: estimating of the amoun: of pitch diameter of the threads to be processed is so imprecise that even the go thiead gauge could pass through, thereby generating waste product with a pitch diameter out of tolerance. Though a straight bar type internal thread micrometer ha.s been provided, in the. field, of ir.ternai thread measurement, it. sifil cannot measure the pitch diametei of common internal threads quickly and easily because of the limitation of measurmg range thereof limited by the size of' inner diameter of the machining orkpiece Three patents multipurpose
I-
jt1r: diameter micrometer (zL200920 1746443) and multipurpose digital dis lay inner diameter mi.erornetei. (20111.00711791. 3> 201120080275. 2) aB. make effect at the measuring accuracy by theii. transmission model and design of compor:nt. structure.
SUMMARY OF THE IN VEN I ION
1.00031 in order to. overcome the defect that the prior internal thread micrometer usually cannot achieve a desired accuracy because of too many transmission chains inside, the internal, thread micrometer; the present invention aims to provide a new internal thread microme ter,.
maidng a key breakthrough in transmission structure of the' component and in the pi rnciple of measurernenc, significantly reducing and changing the transmission chain and transmission model jt:side the' transmission.
mechanism, and thereb) effectively overcoming the defect of inconvenience in internal tireads. measurement. and meeting the requirement of improving measurement accuracy for internal threads.
j0004} in order to solve the technical prübiems, the present inyention provides technical soiution.s as follows An internal thread micrometer comprising replaceable measuring heads, bent measuring, rods, a drive shaft, a supporting sleeve cylinder, a diff'ercntial cylinder and an adjustment knob, a ruler, and a. digital display devic.e dedicated for digitally displaying thefl internal thread micrometer, characterized in that;.
the replceable measuring heads (i3, (14). are atrai.iged respectivei.y on a fixed bent measufing iod (12) and on a mobile bent measuring rod (15), wherein the fixed. bent measuring rod (1.2) and the ruler (9). are connected., the mobile bent measuring rod (15), the supporting sleeve cylinder (2), and th.e chive shaft (28) are connected, the drite shaft (28), the. differential cylinder (4), and the adjustment knob (7) are connected, the supporting sleeve cylinder.(2), the ruler (9): and the dif'rental. cylinder (4) are connected, the digital display device (56) is arran.gcd on the ruler (9) dedicated for digitally displaying the internal thread micrometer, the replaceable measuring head comprises.trianguia:r. thread measuring head,.
rope thread measuring, head, rectangular thread measurilng head and trapezoidal thread measuring head and the replaceable measuring head.
:eom.ptise 5p.eci.&:ized irreplaceable measu:ring head; die fixed: bent.
measuring rod (12) is configured with an engaging plane for the fixed bent measuring rod and the ruler (3.7)., a cylindrical engaging surface for the fixed bent measuring rod and the ruler (38), and a dowel pin (36), the mobile bent measuring rod (iS) is corifigtwed with a.: scale of the. mobile bent measuring rod (1) internal threads of the mobile bent measuring rod (39), a plug (16) a straight surface of circular groove (33) and a spherical surface of circular groove (35); Thefl drive shaft (28) is configured with a thi.eaded rod (40). a mounting hole for ratchet rod (41), an oil sump (26) and a ball slot (27), the supporting sleeve cylinder (2) is configured with an engaging plane for the dIfferential *cyiidet aS the supporting, sleeve cylmdei (17), a cyhndncal engaging surface for the diflerential cylinder and the supportmg sleeve cylinder (18), a cylindrical engaging sur face for the differential cylinder and the drive shaft (22), a screw hole for a round-head positioning screw ç42, a cyl indncal engaging surface for the supporting sleeve cylinder and the rulei (43) and a slot for the supporting sleeve cyl hider (44); the differential cylinder (4) is configured wiTh a adjusting hole (5), annular knurl (6), a scale of the differential cylinder (47) arid an internal *thread hole of the differential cylinder (48); the adjustment knob) .i.s configured with annular knurl (6):, an inner ratchet wheel (31), a threaded hole of the adjustment knob (49) and adjustment knob threads engageable with round head setew (50), the round-head positioning screw (32) is configured With a cylindrical s*u*rface of the round-head posItioning screw (45) and a spherical surface of the round-head posith.ning screw (46); the internal thread ni icrometer comprises a dedicated digital display internal thread mictometei with the digital display device (56) and a verification frame (53) for verifying the measurement.
The present invention has advantages as follows it ieduces the transmission chains inside the internal thread micrometer, eflectively eliminates the error generated because of too many transmission chains and thereby improving measurement accuracy of the internal thread micrometer. rrhe internat thread micrometer provided by the present inv:enton is able to measure the pitch diameter of internal threads directly by convenient, wick and accurate measurement, BlUFF DFSCR!PTION OF THE DRAWINGS [0006] l:.urth.er details of the. ptesent inventIon svill be described with reference to. figures and embodiments.
[0007] Fig. I is. a frcw.t view of an: internal thread mkroineter.
[0008] .Fig 2 is a sectional, view of an internal, thread mIcrometer..
10009] fig. 31s a sectional Y:ICW o an.adjutmen.t knob of an interna.l thread micrometer taken along section A-A..
[00101 Fig, 4 is a sectional view of an internal thread micrometer taken along section B-B.
100111 Fig. 5 is a sectional view of an internal thread micrometer taken alon.g section C-C..
[0012] Fig, 6 isa schematic diagram of a fixed bent measuiing rod [0013j Fig. 7 is a schematic diagram. of a mobile bent measuring rod.
100141 Fig S is a schematic diagiam of a drive shall [001.51 Fig. 9 shows a supporting sleeve cylinder.
100161 Fig 10 is a schematic diagram ofa iound head sciew [0017] Fig. I lis a front view of a differential cylinder, [0018J Fig. 12 Is a sectional view of a differential cylinder.
100191 Fig. 13 is a schetnati:c diagram of an adjustment knob.
[0020j Fig 14 is a schematic diagram of a replaceable taper-shape nieasurii..g head.
100211 PIg.1:5 is a schematic. diagram of a replaceable. V-shape measuring hea& [0022] Fig. 16 is a right view of a replaceable V-shape. measuring head.
:10023] Fig. 17 is a schematic diagram of a replaceable taper-shape measuring head and an expansion ring assembly.
[00241 Fig 18 is a schematic diagram of a replaceable V-shape measuring head and an expansion ring assemb1 Fig. 19 is a schematic diagram of an expansion ring.
[0024] Fig. 20 shows a. verification frame of: an internal thread.
micrometer.
[0027] Fg. 21 is a working schematic diagram of an Internal thread in icrorneter.
j0028J Fig. 22 shows a digital display internal thread micrometer with.
a digital display dvi.ce.
100291 In Ftgs. 1-22, 1 scale of mobile bent measuring rod; 2 supporting sleeve cylinder; 3 datum line on scale of a differential cylinder, 4 differential cy]rndei; 5. adjusting hole; 6 annular knurl, 7 adjustment knob; S round head screw, 9 ruler 10 thermal baffle, 11 fastening screw for the thermal baffle; 12:, fix ed bent.masw1tig rod.; 13.
replaceable taper-shape measuring head, 14 replaceable V-shape measuring head; 15. mobile bent measurthg rod; 16 plug; 17. engaging plate for differential cylinder and supporting. sleeve cylinder; 18.
cylindrical engaging surthee for differential cylinder and supporting sleeve cylinder, 19 spring, 20 sunk screw for supporting sleeve cylinder, 21. bali; 22. cylindrical engaging surface for diffrent{ai. cylinder and drive shaft, 23 sunk screw for adiustrnent knob, 24 spring; 25, ball; 26 oil:sump; 2.7.. ball, slot; 28, drive shaft; 29. sprin; 30. ratchet rod; 31.
inner ratchet wheel; 32. round-head positioning screw; 3*3 straight surface of circular groove; 34. slot for round-head positioning screw; 35.
sphencal surface of circular groove, 36 do'el pm, 37 eigaging plane for fixed bent measuring rod and ruler;. 38. cylindrical engaging surfc:e for fixed bent measuring rod and ruler; 39. internal thread of mobile bent measuring rod.; 4:Q, threaded rod; 41. mounting hole for ratchet rod; 42, screw hole for round-head positioning screw; 43 cylindrical engaging surface for supporting sleeve cylinder and ruler; 44 slot for supporting sleeve cylinder; 45. cylindrical surface of rou. .4-head positioning crew;.
46..pherical surface of round-head positioning screw; 47 scale of differential cylindOr; 48. internal threaded hole of differential cylinder; 49'.
threaded hole of adjustment knob; 50, adjustment knob threads engageable with round head screw, 51 slot for expansion ring; 52.
expansion tlng; 53. veriflea.tin frame; 54. cylindrical iocati:a.g..sLrface for verification flame and replaceable measunng heads, 55 planar locating-surface for verification fram and replaceable measuring heads; 56. digital display device:.
DETAILED,DESCRTPTTON OF ILLUSTRATED EMEODJMENTS 1fi0301 In FIgs. 122., the internal thread micrometer comprises.: replaceable measuring heads, bent measuring rods, drive shaft, a supporting sleeve cylinder, a differential cylinder and an adjustment knob, a rulet and a digital display device dedicated for digitally displaying the internal thread micrometer, wherein the connection and transmission relationships between each other are as follows: 10031.1 Two measuring heads of the internal thread, micrometer are respectively a replaceable taper-shape measuring head (13) and a replaceable Vshape measuring head (.14), which are arranged respectively on a fixed bent measuring rod (12) and on a mobile bent measuring rod (15) The fixed bent measuring tad (12) and the ruler (9) are connected, the mobile bent measuring rod (15), the supporting. sleeve cylinder (2), and the drive shaft (28) aic connected, the drive shaft (28), the differential cylinder (4), and the adjustment Itt oh (7) are connected, the supporting sleeve cylinder (2), the ruler (9), and the differential cylinder (4) are connected The fixed bent measunng rod (12) and the supporting sleeve cylindet (2). are fixed by the tuier (9), the differential cylinder (4) is supported by the supporting slee ste cylinder (2), the drive shaft (28) i.s leaded by the differential cylinder (4), the movement of the mobile bent measuring rod 15) is leaded by the drive shaft (28), the adjustment knob 7) arrarged on the drive shaft. (28). also drives the drive..
shaft (28) and loices the mobile bent measuring rod (15) to move axially during, the measurement..
f0032] The features, structures. and. embodiments of the: internal thread micrometer of the. present in ven. :tion are described as follows: 1003311 Two repl.aceab.l.e measuring heads 1 the internal thiea4 micrometer are respectively a ieplaceable tapei-sbape measuring head (13) and a replaceable \-shape measuring head (14,), wherein the replaceable measuring. he:d.s nay be replaced when m:easutirl.g. other types of threads.
The types.' of replaceable measuring heads include triangular thread measuring head,. rope thread measuring head, rectangular thread measuring head an trapezoidal thread measuring head, and the replaceable measuring heads also inci.de specialized irreplaceable measi.iring head. Ii' w ill be understood that the replaceable: taper-shape measuring head (13) and the replaceable V-shape measuring head (14) are merely a preferred design far measuring threads by the internal tlgead micrometer A slot for expansion ring (51)is arranged on the replaceable taper-shape measuring head (13) and the replaceable V-shape measuring
S
bead (14) (as shown in Figs.. 14-11.9), and the replaceable taper-shape measuñng head (13) and th replaceable V-thape measuring head (14) are respectively mounted on the fixed bent measuring rod (12) and the mobile bent measuring rod (15) by cxpansive force of the expansicn ring (52) when measuiing, the ieplaceahle taper-shape measuring head (13) and the replaceable V-shape measuring head (14) are put in cart espondmg measuring heads positions on the verification frame (53) first, then zero line: of the scale of differential yl inde,r (47): on the differential cylinder (4) (as shown 1j Fig. Ii) is aligned with the datum line on the scale of differential cylinder 3), and the zero line may be adjusted by the adjusting hole (5) on the differential cylinder (4) ii it is not aligned with.
the. datum line on the scale of differential cylinder (3.) After the adjusnnent, a second calibration is performed by the differential cylinder (4) and the adjustment knob (7), ar.d the calibration should continue to be performed untIl the zero line on the differential, cylinder (4) remains alignment to the datum.1 inc on the scale of differential cylinder (3) while a sound of slipping of the mechanical transmission is generated by the spring (29) (the structure is shown in Fig. 3), the ratchet rod (.30) and the inner ratchet wheel. (.31) inside the adjustment knob 7).. The cylindrical lcatingsur:face for verification frame and replaceable mea.surirg heads (54) and the plan.ioeating-surthce for verification frame and replaceable measuring beads (55') are arranged o.n. the verification frne:53) so as to to etisute the precIsion of size of the verification frame.
100341 When actually measuring mteinal thicads, as shown in Pig 2, the. differential cylinder (4). and the adjustment knob (7) are used cooperatively. The differential cylinder 4) is used for fast moving, i.e. it is used. for moving the measuring heads to or away from the.ni.easuring swiace fist, and t1.e adj.ustm cot knob (7) is used for controlling, the twisting three ef the user. .e. the adjustment knob (7) is used. for controlling, the measudng force of the. user when the measuring heads has get to the measuring surface ahead' or almost get to the measuring surface, so as to avoid the measuring error generated because the force is too large..
100351 Two bent. measuring rods of the. internal thread micrometer are respectively a fixed bent ifleasuring rod (12) and a mc. bile bent i..'easuring rod (15), and an engaging plane for the fixed bent measuring rod and the ruler (37). and a cylindrical engaging surface for tht fixed bent measu rod and the ruler (3.8) are arranged on the fixed bent measurIng, rod (.1.2), as shown it'. Pig,C, so as to ensure the positioning accwacy of the fixed bent measuring rod (12), and meanwi lie a dowel pin (36) i.s arranged on its side for preventing any movement (as shown m Fig Sj, so as to ertsuie the positioning accuracy and stabilization of the fixed bent measunng rod (12) A scale of mobile bent measurmg rod (1) showing the integral aluc 0.5mm and 1mm of the work-p.iece to be measured is arrai.iged on the mobile bent measuriig rod (15), fOr exathpie if the value of the thread.s to be measured is 30 28 mm or 30 58 mm, the scale of mobile bent rneasuting rod. (1) will show 30 mm or 3.0.50 aim., and the rest. fractional part 0,28mm or 0 08mm will be shown by the alignment of the scale of differential cylinder (47) and the datum Irne on scale of the diflerential eylinde.r (3). The internal threads of mobile bent measuring rod (39) precisely match with the threaded rod (40): on the drive shaft (28) and serve for the tranam ssion of twisting force for measuring the internal threads and fat the value display Outer diarnetet of the plug (16) and maj or diameter f the.inte:rna.l threads cf mobile bent. measuring rod 39).
are same, and transition fit with each other and serve for pro: tecting after processing fabrication hole of the internal threads of mobfle bent measuring rod (39) (as shown in Fig 7) A straight surface of the circular groove (33) arid a spherical surface of the circular groove (35) are arranged on the mobile bent measuring rod (1.5): to cooperate with a cylindrical surface of round-head positioning screw (45) and a spherical surface of round-head positioning screw (46) on the round-head positioning screw (32), and limIt the axial movement and. positwmng of the mobile bent measuring rod (l5) wherein a precise sliding fit relationship is formed between the mobile: bent.m.easudng rod (15) and.
the supporting sleeve cylinder (2) 100361 The threaded rod (40) arranged on the dnve shaft (28) of the 12.
internal thread it. icrometer is precisely fit with the internal threads of móbii.e bent rneas*ur* .i.n.g Prod (39), servin.g for the. transmission of the internal threads measurement and for the value display (as shown in Fig..2):, A eyiindrkal engaging surface for differential cylinder and drive shaft is arranged on the drive shaft (28) to ensure the cooperative transmission relation s1iip between the drive shaft (28) and the differential cylindet 4) A spring (29) for controlling the drive shaft measurement, a ratchet rod (30) and a inner ratchet wheel (31) are mounted in the mounting hole for ratchet rod. (41) (as shown in Fig. 8), and an oil. sump (26) is used for lubricating and: reducing the friction between the ratchet red (3.0): and. the inner ratchet wheel 3 1). A bail slot (27) is cooperatively used with a sunk screw for adjustment knob (.23), a spring (24) and a bail (25) to limit the ni.ai p.oiti.o:n of the adjustment knob (7) on the drive shaft (28).
1O37I The supporting sleeve cyhndei (2) (as shown in Figs 9 2) of the internal thread micrometer is. transition fitted and fixed. with the ruler (9) by the cylindrical engaging surface for supporting sleeve cylinder and iu]Cr (43) An engaging plane for differential cylinder and supporting sleeve cylinder (17) and a cylindrical engaging surface for differential cylinder and supporting leeve cylinder (18) on the upporting.leeve cylinder (2) serve fot cooperatively positioning of the differential cylinder (4) A slot for supporting sleeve cylinder (44) is cooperatively used with a spring: (19), a sunk s*crw for Sappurtiug sleeve cylinder (20) and a bali (21) to limit the axial position of the d.ifThrenua! cylinder (4) on the supporting sleeve cyhmier (2), A screw hole for ro.undhead positioning screw (42) is used for mounting the round-head positioning screw: (32). The annular knurl (6) on. the differential cylinder (4) of the internal thread micrometer i:s used for increasing the frIction of fingers du;iñg i..:easuring An internal thretded hole of differential cyIinde.r (48) (as shown in Fig 12) is used for mounting the sp'mg (19), the stink screw for supporting sleeve cylinder (20) and the ball (21). The *differental.
cylinder (4) is used for the twisting force transmission of the drive shaft (28) and br the thieads size display on the supporting sleeve cylinder (2) [0038] The annular knurl. (6)15 arranged on the acjustment knob (7) cf the: internal thread micron:.etr to j:flcfease the lion during its rotating. The inner ratchet wheel (3].) is cooperatively used with the.
spring (29) on the.d nyc shaft (28) and with the ratchet rod (30) to control the twi$ting three of the adjustment knob (7) (as shown in Fig. 3). The adJustment knob (7) drives the drive shaft (28) and the measuring head on the mobile bent measurtng rod (15) to get close to the surface to be measured when it is rotated counterclockwise by the us:er, When rneasunng work-piece by the adustment knob (7), slip occurs after the tnnei i atchet wheel (31) and the ratchet rod (30) are rotated in a certain twisting force, indic'anng that the measure force now meet the requirement of measurement and the measured value of the pitch diameter of internal thread.s can be read. After the value is read, the user m:ay rc.tate the adjustment knob (7) clockwise, and the ratchet rod (.30) will release the stuck Inner ratchet wheel (31): under the action of the spring (29), an d thereby making the adjustment knob (7) to drive the measuring heads on the drive shaft (28) away from the surface to be measured and finish the whole measuring process. The sunk sciew Lot adjustment knob (.3), the spring (24) and the haLl (25) are mounted. in the threaded hole of adjustment knob (49) on the adjustment knob (7) for positioning the axial position of the adjustment knob (7) on the drive shaft (28). The adjustment knob threads engageable with round head screw (50) (as shown in Figs 13, 1) is cooperatively used with the round head screw(S), serving for dust prevention and artistic. e.ffi ct..
f0039J The cylindrical surface of round-head. positioning scrEw (45) and the spherical surface of round-head po1noning screw (46) (as shown in Figs. 10, 4) on the round-hea.d positioning screw (32) of the internal.
thread micrometer are cooperatively used with the straight surface of circular groove (33) and the spherical surface of circular grooe (35) on the mobile bent measuring rod (15) to control the accuracy of axial movement and the positIon of the mobile bent measuring rod (15) And th.e slot for round-head positioning screw (34) is a proce..sed slot, 100401 A digital display devLce (56) (as shown in Fig 22) of the internal thread micrometer i dedicated for digitally dkpiaying the mteinai thread micrometer of the internal thread micrometer The digital display technology of transmission mechanism for the digttai display de ice and the nternai thiead m:c:rometer is common knmvledge and therefore will not be further described..
100411 The verifleaLion frame (53) of the internal tluead micrometer is an ancillary attachment of th internal. thred micromete4 which is mainly used for verifS'l.ng the initial datum of the internal threads measurement. The. verification, method is common knowledge The replaceable measuring heads on the verification frame also include fixed measuring heads. The thermal baffle (10) on the ruler (9) of the internal thread micrometer is fastened by the fastening screw len the thermal baffle (1 1), which is mainly used for accuracy measurement.
[0042.] Cornparir.g the internal thread micrometer with traditional tools and methods for measuring the pitdh dian.eter of intema.l threads its design is ingenious, simple, reasonable and precise. It accurately and effectively measures the pitch diameter of internal threads, helps the user to save measuring time. and. improve the machining accuracy for internal threads. It is a ne' product in the field of internaL thread measurement and will positively push for the progress of machining technology.
GB1403034.0A 2011-08-08 2012-08-09 Internal thread micrometer Expired - Fee Related GB2507915B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201110224688 2011-08-08
PCT/CN2012/001064 WO2013020373A1 (en) 2011-08-08 2012-08-09 Internal thread micrometer

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GB201403034D0 GB201403034D0 (en) 2014-04-09
GB2507915A true GB2507915A (en) 2014-05-14
GB2507915B GB2507915B (en) 2017-09-13

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AU (1) AU2012292861B2 (en)
GB (1) GB2507915B (en)
WO (1) WO2013020373A1 (en)

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WO2013037190A1 (en) * 2011-09-16 2013-03-21 苏州蓝王机床工具科技有限公司 Inner diameter micrometer
CN202452907U (en) * 2011-08-08 2012-09-26 孙生强 Internal diameter micrometer
CN103808216A (en) * 2013-11-21 2014-05-21 钟传新 Micrometer
CN108955480A (en) * 2018-06-14 2018-12-07 顺德职业技术学院 A kind of radius measuring device and radius measurement method
CN109803187B (en) * 2019-02-12 2019-12-27 绍兴慧创科技有限公司 Industrial and civil dual-purpose microphone

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CN202452907U (en) 2012-09-26
GB201403034D0 (en) 2014-04-09
AU2012292861B2 (en) 2015-05-28
AU2012292861A1 (en) 2014-03-06
WO2013020373A1 (en) 2013-02-14

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