CN201444029U - Multifunctional inner hole measuring scale - Google Patents

Multifunctional inner hole measuring scale Download PDF

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Publication number
CN201444029U
CN201444029U CN2009200305377U CN200920030537U CN201444029U CN 201444029 U CN201444029 U CN 201444029U CN 2009200305377 U CN2009200305377 U CN 2009200305377U CN 200920030537 U CN200920030537 U CN 200920030537U CN 201444029 U CN201444029 U CN 201444029U
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CN
China
Prior art keywords
arm
underarm
mandrel
hole
axis
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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.)
Expired - Fee Related
Application number
CN2009200305377U
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Chinese (zh)
Inventor
刘红艳
刘家峰
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刘红艳
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Priority to CN2009200305377U priority Critical patent/CN201444029U/en
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Publication of CN201444029U publication Critical patent/CN201444029U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a multifunctional inner hole measuring scale. An upper arm and a lower arm are connected together through a core shaft; so that the upper arm and the lower arm can flexibly rotate and the gap therebetween is small; a bolt II penetrates through a ring groove on the upper arm and is tightened on the lower arm; and a high top knurled nut is installed on the bolt II. Two spherical measuring heads are respectively installed at the same ends of the upper arm and the lower arm and fixed through tightening bolts; and springs are installed on the two tightening bolts. A dial indicator is fixed in the hole at the other end of the lower arm; a measuring cylinder is fixed at the other end of the upper arm; a positioning column is installed at one end of the lower arm with the dial indicator; and the front end surface of the positioning column is 1 to 2 mm away from the upper arm. When the position is measured by the two spherical measuring heads, an included angle of 30 degrees is formed by the plane of the outer end surface of the measuring cylinder and symmetrical planes of two spherical measuring heads through a shaft line of the core shaft; the dial indicator and the measuring cylinder are coaxial; and the sphere centers of the two spherical measuring heads and the center of the outer end surface of the measuring cylinder are positioned on the circle adopting the shaft line of the core shaft as a circle center. Therefore, the multifunctional inner hole measuring scale can quickly and accurately measure the diameter of a medium sinus of the inner hole, and also can replace general inside diameter measuring scales to measure inner holes of general parts.

Description

Multi-functional endoporus scale
Technical field
The utility model relates to the measuring appliance of mechanical component, especially multi-functional endoporus scale.
Background technology
Design has annular groove in the hole of some mechanical component now, and the measurement of the diameter dimension of groove can't be finished with ordinary measring tool, and particularly the little groove of width is accurately measured its diameter dimension, and it is just bigger to measure difficulty.
Summary of the invention
The purpose of this utility model provides a kind of multi-functional endoporus scale, and the endoporus of optical power measurement part not can also make things convenient for, measure reliably the accurate dimension of the diameter of groove in the hole in piece part.
The technical scheme that its technical matters that solves the utility model adopts is: adopt lever principle that the endoporus of lever one end two gauge heads reflection or the diameter dimension of interior hole slot are recorded on the dial gauge of the lever other end, compare with standard size exemplar or Centigrade scale, draw the physical size of groove diameter in part endoporus or the hole.
Multi-functional endoporus scale is made up of opening sleeve, measurement cylinder, reference column, mandrel, spheric probe, holding screw, spring, upper arm, underarm and dial gauge.The hole that mandrel passes in the middle of upper arm and the underarm links together them with nut second and supporting plain washer, spring washer, make them can be little relative to the gap of rotating flexibly and mandrel cooperates with the hole around mandrel, upper arm and underarm gap between mandrel big column end face and plain washer be little; It on the upper arm is that the annular groove at center is tightened in the screw of underarm with the mandrel axially bored line that nut second is passed, and nut second is exposed the upper arm end high top knurled nut is housed; Two spheric probes are contained in respectively in the screw of upper arm and the same end of underarm and fix with holding screw, spring is contained on two holding screws by internal diameter, dial gauge is fixed in the hole of the underarm other end, the measurement cylinder is contained in the Kong Zhongyong nut first of the upper arm other end and fixes, reference column is contained in the end that underarm has dial gauge, the reference column front end face on the upper arm plane 1~2 millimeter position corresponding and parallel with it with the locking of nut second; When the bulb of two spheric probes is in the measured hole in piece part groove diameter measurement position, the plane of measuring place, cylinder outer face by the mandrel axis and with the symmetrical plane angle of two spheric probes by the mandrel axis be 30 °, it is coaxial with the measurement cylinder axis that dial gauge is measured axis, groove endoporus axis normal and crossing in mandrel axis and the measured hole in piece part, the axis of upper arm and underarm two stomidiums is all on upper arm and underarm faying face, upper arm and underarm install spheric probe an end screw axis coaxle and with by groove endoporus axis normal in the measured hole in piece part and intersect, the centre of sphere of two spheric probe bulbs is being on the circle in the center of circle with the mandrel axis with the center of measuring the cylinder outer face.
The advantage of this multi-functional endoporus scale is: can measure groove diameter in the hole in piece part fast and accurately, also can replace general internal diameter scale to measure the endoporus of general part.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Accompanying drawing is the wiring layout of multi-functional endoporus scale.
Fig. 1 is a front view.
Fig. 2 is the cut-open view that the A-A place ratio of Fig. 1 is amplified.
Fig. 3 is the I place ratio zoomed-in view of Fig. 1.
1. bolt first among the figure, 2. opening sleeve is 3. measured cylinder, 4. nut first, 5. reference column, 6. mandrel, 7. measured part, 8. spheric probe, 9. holding screw, 10. spring, 11. upper arm, 12. nut second, 13. high top knurled nuts, 14. underarms, 15. nut second, 16. dial gauges.
Embodiment
In the accompanying drawings, the hole that mandrel (6) passes in the middle of upper arm (11) and the underarm (14) links together them with nut second (15) and with its supporting plain washer, spring washer, make them can be little relative to the gap of rotating flexibly and mandrel (6) cooperates with the hole, optional H7/g6 around mandrel (6).Mandrel (6) cooperate with the hole axially, plain washer is the end face that is pressed in the small column that mandrel (6) is used to cooperate, upper arm (11) is contained by the corresponding surface of mandrel (6) big column end face and plain washer with underarm (14), the gap of cooperation is little, also optional H7/g6.Be that mandrel (6) is used to cooperate the length dimension of small column be H7, upper arm (11) is g6 with the gross thickness of underarm (14).
Be rotated in certain scope for the upper arm (11) that makes multi-functional endoporus scale is relative with underarm (14) and can be fixed on a certain position, it on the upper arm (11) is that the annular groove at center is tightened in the screw of underarm (14) with mandrel (6) axially bored line that nut second (12) is passed, and nut second (12) is exposed the upper arm end and is equipped with and is used for the high top knurled nut (13) of upper arm (11) with underarm (14) locking.
Two spheric probes (8) are contained in the screw of upper arm (11) and the same end of underarm (14) fixing with holding screw (9) in the needs position respectively.Holding screw (9) protrudes its assembling screw end face, spring (10) is contained on two holding screws (9) by internal diameter, give the suitable power of two spheric probes (8) when effect is measurement, can successfully make the bulb of two spheric probes (8) be in groove diameter measurement position in measured part (7) hole.Dial gauge (16) is fixed in the hole of underarm (14) other end by opening sleeve (2) with bolt first (1), it is fixing that measurement cylinder (3) is contained in the Kong Zhongyong nut first (4) of upper arm (11) other end, reference column (5) is contained in the end that underarm (11) has dial gauge, go up plane 1~2 millimeter position corresponding and parallel at reference column (5) front end face apart from upper arm (11), with nut second (15) locking with it.This is the position of control scale two spheric probes (8) when not measuring, and just to measure the distance in preceding two spheric probes (8) outside bigger 1~2 millimeter than the measurement diameter when scale, thereby is limited in the position of two spheric probes (8) under the effect of spring (10).The design of spring (10) and reference column (5) make scale easy to use, measure accurately.
When multi-functional endoporus scale is measured, the indicating value that dial gauge (16) is gone up pointer is identical with groove diameter physical size in measured part (7) hole, status requirement to each part of scale is: when the bulb of two spheric probes (8) is in measured part (7) hole groove diameter measurement position, the plane of measuring cylinder (3) place, outer face by mandrel (6) axis and with two spheric probes (8) symmetrical plane angle by mandrel (6) axis be 30 °.Dial gauge (16) is measured axis and is measured cylinder (3) axis coaxle, groove endoporus axis normal and crossing in mandrel (6) axis and measured part (7) hole, the axis of upper arm (11) and underarm (14) two stomidiums is all on upper arm (11) and underarm (14) faying face.Upper arm (11) and underarm (14) install spheric probe (8) a stomidium axis coaxle and with measured part (7) hole in groove endoporus axis normal and intersecting, the centre of sphere of two spheric probes (8) bulb is being on the circle in the center of circle with the center of measuring cylinder (3) outer face with mandrel (6) axis.
The critical part of multi-functional endoporus scale adopts the manufacturing of high-quality steel, the outer end thermal treatment 55-60HRC of the bulb of two spheric probes (8) and measurement cylinder (3).
Multi-functional endoporus scale using method: the multi-functional endoporus scale of in the ordinary course of things installation being adjusted is proofreaied and correct with gauge orifice or Centigrade scale, makes dial gauge (16) pointer to 0.Grasp upper arm (11) and underarm (14) and make the distance of two spheric probes (8) dwindle the groove of putting into measured part (7) endoporus, under the effect of spring (10), make two spheric probes (8) of scale be in the diametrical position of groove endoporus.Can draw the physical size of groove diameter in measured part (7) hole according to the numerical value of dial gauge (16) pointer indication.According to the design concept of multi-functional endoporus scale, measurement has slight error.Can adopt another kind of method to eliminate error, hold upper arm (11) and make the distance of two spheric probes (8) dwindle the groove of putting into measured part (7) endoporus with underarm (14), the bulb of two spheric probes (8) is in groove diameter measurement position in measured part (7) hole.Remember the upward numerical value of pointer indication of dial gauge (16), after taking out from measured part (7), scale utilize the high top knurled nut (13) on the scale upper arm (11) and underarm (14) is fixing by the numerical value of remembeing dial gauge (16), measure the outer measuring point of two spheric probes (8) with Centigrade scale, can draw the physical size of groove diameter in measured part (7) hole.Theoretically, this measuring method is accurately.
Multi-functional endoporus scale can be measured the size of groove diameter in the hole in piece part quickly and easily, also can survey the diameter dimension of plain bore certainly.Therefore, multi-functional endoporus scale can replace common internal diameter scale use.

Claims (1)

1. multi-functional endoporus scale, form by opening sleeve, measurement cylinder, reference column, mandrel, spheric probe, holding screw, spring, upper arm, underarm and dial gauge, it is characterized in that: the hole that mandrel passes in the middle of upper arm and the underarm links together them with nut second and supporting plain washer, spring washer, make them can be little relative to the gap of rotating flexibly and mandrel cooperates with the hole around mandrel, upper arm and underarm gap between mandrel big column end face and plain washer be little; It on the upper arm is that the annular groove at center is tightened in the screw of underarm with the mandrel axially bored line that nut second is passed, and nut second is exposed the upper arm end high top knurled nut is housed; Two spheric probes are contained in respectively in the screw of upper arm and the same end of underarm and fix with holding screw, spring is contained on two holding screws by internal diameter, dial gauge is fixed in the hole of the underarm other end, the measurement cylinder is contained in the Kong Zhongyong nut first of the upper arm other end and fixes, reference column is contained in the end that underarm has dial gauge, the reference column front end face on the upper arm plane 1~2 millimeter position corresponding and parallel with it with the locking of nut second; When the bulb of two spheric probes is in the measured hole in piece part groove diameter measurement position, the plane of measuring place, cylinder outer face by the mandrel axis and with the symmetrical plane angle of two spheric probes by the mandrel axis be 30 °, it is coaxial with the measurement cylinder axis that dial gauge is measured axis, groove endoporus axis normal and crossing in mandrel axis and the measured hole in piece part, the axis of upper arm and underarm two stomidiums is all on upper arm and underarm faying face, upper arm and underarm install spheric probe an end screw axis coaxle and with by groove endoporus axis normal in the measured hole in piece part and intersect, the centre of sphere of two spheric probe bulbs is being on the circle in the center of circle with the mandrel axis with the center of measuring the cylinder outer face.
CN2009200305377U 2009-07-25 2009-07-25 Multifunctional inner hole measuring scale Expired - Fee Related CN201444029U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009200305377U CN201444029U (en) 2009-07-25 2009-07-25 Multifunctional inner hole measuring scale

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009200305377U CN201444029U (en) 2009-07-25 2009-07-25 Multifunctional inner hole measuring scale

Publications (1)

Publication Number Publication Date
CN201444029U true CN201444029U (en) 2010-04-28

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102997788A (en) * 2012-11-16 2013-03-27 无锡麦铁精密机械制造有限公司 Cambered surface central position detection device
CN103335581A (en) * 2013-06-24 2013-10-02 中国石油天然气集团公司 Female adapter pitch diameter measurement instrument, pole, positioning sample board and pitch diameter measuring method
CN104930952A (en) * 2015-07-01 2015-09-23 南京农业大学灌云现代农业装备研究院 Groove measuring apparatus
CN112212767A (en) * 2020-09-22 2021-01-12 陕西航空电气有限责任公司 Inner hole diameter measuring device and method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102997788A (en) * 2012-11-16 2013-03-27 无锡麦铁精密机械制造有限公司 Cambered surface central position detection device
CN103335581A (en) * 2013-06-24 2013-10-02 中国石油天然气集团公司 Female adapter pitch diameter measurement instrument, pole, positioning sample board and pitch diameter measuring method
CN103335581B (en) * 2013-06-24 2016-08-10 中国石油天然气集团公司 Female adapter pitch diameter measurement positioning templet and central diameter measuring method
CN104930952A (en) * 2015-07-01 2015-09-23 南京农业大学灌云现代农业装备研究院 Groove measuring apparatus
CN112212767A (en) * 2020-09-22 2021-01-12 陕西航空电气有限责任公司 Inner hole diameter measuring device and method thereof

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100428

Termination date: 20100725