CN104748645A - Diameter measuring method and tool for deep holes and inner annular slot holes - Google Patents
Diameter measuring method and tool for deep holes and inner annular slot holes Download PDFInfo
- Publication number
- CN104748645A CN104748645A CN201310749599.4A CN201310749599A CN104748645A CN 104748645 A CN104748645 A CN 104748645A CN 201310749599 A CN201310749599 A CN 201310749599A CN 104748645 A CN104748645 A CN 104748645A
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- main body
- groove
- measuring head
- test
- deep hole
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Abstract
The invention discloses a diameter measuring method and tool for deep holes and inner annular slot holes. According to the diameter measuring method, a conversion device and a radial point contact testing device realize to convert the radial size change of the deep hole or inner annular slot hole into axial size change capable of being directly tested and convert the radial test into point contact test. According to the diameter measuring tool, by means of cylindrical test heads which comprise global ends and are distributed uniformly and symmetrically, the test precision can arrive at 0.001 millimeters; by means of a spring piece in a body, the test heads are avoided from falling off from the body, and the test heads restore after extending out; a limit groove and a limit pin can prevent the test heads separating from the end of a central axis due to surpassing the test range and also can well prevent the central axis rotating. The diameter measuring tool is simple in principle and structure, easy to operate, high in precision and capable of testing different inner diameters of deep small holes or inner annular slot holes with large step difference.
Description
Technical field
The present invention
relate to a kind of deep hole inner groove bore diameter measuring method and instrument, belong to testing tool technical field.
Background technology
now conventional interior annular slot aperture survey instrument only has internal calliper, if run into Fine and Deep Hole or step difference very large interior annular slot aperture when needing to measure, due to the structural limitations of internal calliper own, measuring this method with internal calliper is be difficult to realize, and this internal calliper read text scale is artificial groove, measuring accuracy is not high, can not determine this instrument connection, groove shape whether standard very well.
Summary of the invention
the object of the present invention is to provide a kind of deep hole inner groove bore diameter measuring method and instrument, this deep hole inner groove bore diameter measuring method and instrument principle simple, easily easily realize, and measuring accuracy is high, solve the problem that current Fine and Deep Hole or the very large interior annular slot aperture of step difference are difficult to measure, to overcome the deficiencies in the prior art.
technical solution of the present invention
a kind of deep hole inner groove bore diameter measuring method, this deep hole inner groove bore diameter measuring method realizes being converted to the radial dimension change of deep hole inner ring slotted eye the axial dimension change that can directly test and realizes radial test for point cantact and tests by conversion equipment and radial point Contact Test Set, wherein this conversion equipment main body adopts circular cone transformational structure, this conical structure is advanced to change the contact position of radial point Contact Test Set and this conical structure by axial proving installation, when radial point Contact Test Set correctly touches the deep hole inner ring slotted eye inwall of required test, record the advance distance of axial proving installation, the size of this deep hole inner ring slotted eye then can be obtained by certain data relationship conversion, this radial point Contact Test Set is that to be uniformly distributed termination by surrounding be spherical column structure measuring head, single measuring head is in the hole of its correspondence direction, the point cantact that groove internal diameter can realize precision is measured, therefore this deep hole inner groove bore diameter measuring method can realize Fine and Deep Hole aperture, the interior annular slot aperture that step difference is very large or interior shape are not that the hole of very standard is accurately measured.
in survey instrument constructed by a kind of aforementioned deep hole inner groove bore diameter measuring method, comprise the main body being provided with through hole, groove is provided with in main body termination, the measuring head being provided with draw-in groove is arranged on groove left end and penetrates in the through hole of main body, measuring head and main body are sliding contact, spring leaf right-hand member is fixed by screws on the right side of groove, spring leaf left end is stuck in the draw-in groove of measuring head, termination is that the central axle sleeve of conical structure enters in main body, and central shaft termination contacts with measuring head, stopper slot is provided with in the middle part of central shaft, spacer pin to be arranged in main body and corresponding with stopper slot position, dial framework is provided with at body tail section, clock gauge is enclosed within dial framework by locking device, the push pedal corresponding with clock gauge position is provided with at central shaft afterbody.
in aforementioned survey instrument, described measuring head structure is two ends is spherical column structures, and measuring head is symmetrical, and quantity is 2 ~ 4.
in aforementioned survey instrument, the cone angle of described central shaft (5) conical termination is 20 ° ~ 60 °.
in aforementioned survey instrument, be provided with supporting positive cover at central shaft and body tail section junction.
in aforementioned survey instrument, described dial framework is " U " shape structure, clock gauge be placed on dial framework for " U " locked by locking device in shape groove.
owing to have employed technique scheme, with prior art ratio, be suitable in the present invention measuring Fine and Deep Hole, the interior annular slotted hole that step difference is very large or hole, the aperture that groove inside dimension is inconsistent, the present invention is by its circular cone conversion equipment, can very direct accurately different hole, measured place, the internal diameter of groove, be spherical cylindrical measuring head by termination and distribute symmetrically, energy instrument connection, any direction in groove also makes test mode be point cantact test, its measuring accuracy can reach 0.001mm, by being arranged on the spring leaf in main body, measuring head is avoided to drop out main body and measuring head stretches out rear return, be provided with stopper slot and spacer pin simultaneously, can place measuring head because exceeding test specification off center shaft end head, also central axis can be prevented very well, by being provided with supporting positive cover, distortion can be placed, by being provided with dial framework and locking device, facilitate the fixing of clock gauge and positioning, and measuring head easy installation and removal, if the hole tested, groove internal diameter exceedes the test specification of this measuring head, with changing measuring head and test can being continued, principle of the invention structure is simple, simple to operate, degree of accuracy is high, can the test Fine and Deep Hole of various internal diameter size or the very large interior annular slotted hole of step difference.
Accompanying drawing explanation
accompanying drawing 1 is structural front view of the present invention;
accompanying drawing 2 is structure vertical view of the present invention.
being labeled as in accompanying drawing: 1-main body, 2-measuring head, 3-spring leaf, 4-screw, 5-central shaft, 6-spacer pin, 7-stopper slot, 8-clock gauge, 9-dial framework, 10-locking device, 11-supporting positive cover, 12-push pedal, 13-roll up pin, 14-screw, 15-pad, 16-nut, 17-through hole, 18-groove, 19-draw-in groove, a-cone angle.
Embodiment
below in conjunction with accompanying drawing, the present invention is described in further detail, but not as any limitation of the invention.
a kind of deep hole inner groove bore diameter measuring method of the present invention, this deep hole inner groove bore diameter measuring method realizes being converted to the radial dimension change of deep hole inner ring slotted eye the axial dimension change that can directly test and realizes radial test for point cantact and tests by conversion equipment and radial point Contact Test Set, wherein this conversion equipment main body adopts circular cone transformational structure, this conical structure is advanced to change the contact position of radial point Contact Test Set and this conical structure by axial proving installation, when radial point Contact Test Set correctly touches the deep hole inner ring slotted eye inwall of required test, record the advance distance of axial proving installation, the size of this deep hole inner ring slotted eye then can be obtained by certain data relationship conversion, this radial point Contact Test Set is that to be uniformly distributed termination by surrounding be spherical column structure measuring head, single measuring head is in the hole of its correspondence direction, the point cantact that groove internal diameter can realize precision is measured, therefore this deep hole inner groove bore diameter measuring method can realize Fine and Deep Hole aperture, the interior annular slot aperture that step difference is very large or interior shape are not that the hole of very standard is accurately measured.
a kind of survey instrument constructed by above-mentioned deep hole inner groove bore diameter measuring method, as shown in the figure: comprise the main body 1 being provided with through hole 17, groove 18 is provided with in main body 1 termination, the measuring head 2 being provided with draw-in groove 19 is arranged on groove 18 left end and penetrates in the through hole 17 of main body 1, measuring head 2 and main body 1 are sliding contact, spring leaf 3 right-hand member is fixed on the right side of groove 18 by screw 4, spring leaf 3 left end is stuck in the draw-in groove 19 of measuring head 2, termination is that the central shaft 5 of conical structure is inserted in main body 1, and central shaft 5 termination contacts with measuring head 2, stopper slot 7 is provided with in the middle part of central shaft 5, spacer pin 6 is arranged on the body 1 and corresponding with stopper slot 7 position, dial framework 9 is provided with at main body 1 afterbody, and dial framework 9 is " U " shape structure, clock gauge 8 be placed on dial framework 9 for " U " locked by locking device 10 in shape groove.Clock gauge 8 is enclosed within dial framework 9 by locking device 10, is provided with the push pedal 12 corresponding with clock gauge 8 position at central shaft 5 afterbody, is provided with supporting positive cover 11 in central shaft 5 and main body 1 afterbody junction.
wherein said measuring head 2 structure is two ends is spherical column structures, and measuring head 2 is symmetrical, and quantity is 2 ~ 4, and the cone angle a of the described conical termination of central shaft 5 is 20 ° ~ 60 °.
wherein measuring head 2 needs by after Quenching Treatment, and hardness is higher and wear-resisting, and during measurement, measuring head and aperture belong to point cantact, if wearing and tearing or over range measurement situation under, replaceable measuring head, the material of spring leaf 3 is spring steel.
concrete operation step
step one, first clock gauge school zero, and push pedal contact clock gauge contact;
step 2, this testing tool progressively put into need test hole, groove, after reaching assigned address, push pedal continues to be forced through the central shaft conical surface and backs down two-sided measurement head simultaneously and carry out measurement aperture, record size.
if step 3 institute gaging hole, slot aperture exceed measuring head test specification or measuring head serious wear, then the measuring head choosing corresponding test specification is tested.
Claims (6)
1. a deep hole inner groove bore diameter measuring method, it is characterized in that: this deep hole inner groove bore diameter measuring method realizes being converted to the radial dimension change of deep hole inner ring slotted eye the axial dimension change that can directly test and realizes radial test for point cantact and tests by conversion equipment and radial point Contact Test Set, wherein this conversion equipment main body adopts circular cone transformational structure, this conical structure is advanced to change the contact position of radial point Contact Test Set and this conical structure by axial proving installation, when radial point Contact Test Set correctly touches the deep hole inner ring slotted eye inwall of required test, record the advance distance of axial proving installation, the size of this deep hole inner ring slotted eye then can be obtained by certain data relationship conversion, this radial point Contact Test Set is that to be uniformly distributed termination by surrounding be spherical column structure measuring head, single measuring head is in the hole of its correspondence direction, the point cantact that groove internal diameter can realize precision is measured, therefore this deep hole inner groove bore diameter measuring method can realize Fine and Deep Hole aperture, the interior annular slot aperture that step difference is very large or interior shape are not that the hole of very standard is accurately measured.
2. the survey instrument according to claim 1 constructed by deep hole inner groove bore diameter measuring method, comprise the main body (1) being provided with through hole (17), it is characterized in that: be provided with groove (18) in main body (1) termination, the measuring head (2) being provided with draw-in groove (19) is arranged on groove (18) left end and penetrates in the through hole (17) of main body (1), measuring head (2) and main body (1) are sliding contact, spring leaf (3) right-hand member is fixed on groove (18) right side by screw (4), spring leaf (3) left end is stuck in the draw-in groove (19) of measuring head (2), termination is that the central shaft (5) of conical structure is inserted in main body (1), and central shaft (5) termination contacts with measuring head (2), stopper slot (7) is provided with at central shaft (5) middle part, it is upper and corresponding with stopper slot (7) position that spacer pin (6) is arranged on main body (1), dial framework (9) is provided with at main body (1) afterbody, clock gauge (8) is enclosed within dial framework (9) by locking device (10), the push pedal (12) corresponding with clock gauge (8) position is provided with at central shaft (5) afterbody.
3. survey instrument according to claim 2, is characterized in that: described measuring head (2) structure is two ends is spherical column structures, and measuring head (2) is for symmetrical, and quantity is 2 ~ 4.
4. survey instrument according to claim 2, is characterized in that: the cone angle (a) of described central shaft (5) conical termination is 20 ° ~ 60 °.
5. survey instrument according to claim 2, is characterized in that: be provided with supporting positive cover (11) in central shaft (5) and main body (1) afterbody junction.
6. survey instrument according to claim 2, is characterized in that: described dial framework (9) for " U " shape structure, clock gauge (8) be placed on dial framework (9) for " U " in shape groove and by locking device (10) locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310749599.4A CN104748645A (en) | 2013-12-31 | 2013-12-31 | Diameter measuring method and tool for deep holes and inner annular slot holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310749599.4A CN104748645A (en) | 2013-12-31 | 2013-12-31 | Diameter measuring method and tool for deep holes and inner annular slot holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104748645A true CN104748645A (en) | 2015-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310749599.4A Pending CN104748645A (en) | 2013-12-31 | 2013-12-31 | Diameter measuring method and tool for deep holes and inner annular slot holes |
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| CN (1) | CN104748645A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441023A (en) * | 2016-10-31 | 2017-02-22 | 贵州高峰石油机械股份有限公司 | Device and method for measuring deep and long stepped hole |
| CN110906894A (en) * | 2020-02-05 | 2020-03-24 | 南京泰普森自动化设备有限公司 | Detection device for pore structure |
| CN112985317A (en) * | 2019-12-17 | 2021-06-18 | 中国航发商用航空发动机有限责任公司 | Detection device and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1658994A (en) * | 1924-03-01 | 1928-02-14 | Krupp Ag | Feeling-bolt-hole gauge |
| CN201748880U (en) * | 2010-06-18 | 2011-02-16 | 长春一汽天奇工艺装备工程有限公司 | Convenient and quick measuring device for inner ring groove of part |
| CN202793265U (en) * | 2012-09-10 | 2013-03-13 | 中国航空工业第六一八研究所 | Deep-hole inner ring groove measuring device |
| CN103344164A (en) * | 2013-07-27 | 2013-10-09 | 安徽昊方机电股份有限公司 | Device for measuring inner and outer ring grooves of belt wheel |
| CN203657696U (en) * | 2013-12-31 | 2014-06-18 | 贵州高峰石油机械股份有限公司 | Hole diameter measuring tool for deep-hole inner ring groove |
-
2013
- 2013-12-31 CN CN201310749599.4A patent/CN104748645A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1658994A (en) * | 1924-03-01 | 1928-02-14 | Krupp Ag | Feeling-bolt-hole gauge |
| CN201748880U (en) * | 2010-06-18 | 2011-02-16 | 长春一汽天奇工艺装备工程有限公司 | Convenient and quick measuring device for inner ring groove of part |
| CN202793265U (en) * | 2012-09-10 | 2013-03-13 | 中国航空工业第六一八研究所 | Deep-hole inner ring groove measuring device |
| CN103344164A (en) * | 2013-07-27 | 2013-10-09 | 安徽昊方机电股份有限公司 | Device for measuring inner and outer ring grooves of belt wheel |
| CN203657696U (en) * | 2013-12-31 | 2014-06-18 | 贵州高峰石油机械股份有限公司 | Hole diameter measuring tool for deep-hole inner ring groove |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441023A (en) * | 2016-10-31 | 2017-02-22 | 贵州高峰石油机械股份有限公司 | Device and method for measuring deep and long stepped hole |
| CN112985317A (en) * | 2019-12-17 | 2021-06-18 | 中国航发商用航空发动机有限责任公司 | Detection device and method |
| CN110906894A (en) * | 2020-02-05 | 2020-03-24 | 南京泰普森自动化设备有限公司 | Detection device for pore structure |
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Application publication date: 20150701 |