CN2074007U - Multifunctional mechanical type comparative measuring roundness instrument - Google Patents
Multifunctional mechanical type comparative measuring roundness instrument Download PDFInfo
- Publication number
- CN2074007U CN2074007U CN 90209129 CN90209129U CN2074007U CN 2074007 U CN2074007 U CN 2074007U CN 90209129 CN90209129 CN 90209129 CN 90209129 U CN90209129 U CN 90209129U CN 2074007 U CN2074007 U CN 2074007U
- Authority
- CN
- China
- Prior art keywords
- measuring
- measuring point
- roundness
- stereotyped
- thickness
- 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.)
- Withdrawn
Links
Images
Abstract
The utility model relates to a multifunctional mechanical type comparative measuring roundness instrument for measuring bearings and various short-length column cylinder-shaped work pieces, comprising an outer diameter dimension measuring machine, a 90 DEG roundness measuring mechanism, a 120 DEG roundness measuring mechanism, an ellipticity measuring mechanism, a taper measuring mechanism, a verticality measuring mechanism, a difference of wall thickness measuring mechanism, a width measuring mechanism, a degree of symmetry measuring mechanism and a degree of coplane measuring mechanism which are arranged on a base. Different measuring mechanisms are used on the same roundness measuring instrument to complete corresponding measuring processes. The utility model has the advantages of measuring operating program simplifying, and measuring efficiency and measuring precision increasing.
Description
The utility model relates to a kind of roundness measuring equipment that is used for bearing and the measurement of all kinds of short cylindrical cylindrical work pieces, and particularly a kind of multi-functional mechanical formula compares and measures roundness measuring equipment.
Bearing tester of the prior art, when being used for the measurement of bearing and all kinds of short cylindrical cylindrical work pieces, two-point method circularity, three point method circularity for measured workpiece, and other relevant measurement index, need adopt different somascopes to measure respectively, this detection mode directly influences the raising of measuring accuracy, simultaneously, the measurement function of this bearing tester is limited, and running program is numerous and diverse, and efficiency of measurement is low.
The purpose of this utility model is to provide a kind of multi-functional mechanical formula to compare and measure roundness measuring equipment, and it can realize the multiple function of a kind of instrument, and improves measuring accuracy effectively, simplifies procedures, and improves efficiency of measurement.
The purpose of this utility model is achieved in that
Can dispose measuring outside diameter mechanism (44) on the base (18), 90 ° of roundness measurement mechanisms (45), 120 ° of roundness measurement mechanisms (46), ellipticity measurement mechanism (47), taper measurement mechanism (48), squareness measurement mechanism (49), wall thickness difference measurements mechanism (50), width measure mechanism (51), symmetry measuring mechanism (52) and coplane degree measuring mechanism (35); Can dispose little round platform (14) on circular dull and stereotyped (11), main measuring point (7), second measuring point (8), the 3rd measuring point (9), thickness measuring support (28), width gauge head (20), symmetry survey part (30) and coplane degree is surveyed part (41); Circular dull and stereotyped (11) are positioned at straight line parallel that base (18) goes up the symcenter by gauge head (6) and corresponding main dial gauge (1), 90 ° of circularity dial gauges (2) and 120 ° of circularity dial gauges (3) in circular dull and stereotyped (11) by dull and stereotyped trip bolt (12), and on the axial plane by circle flat board (11) center.
Measuring outside diameter mechanism (44) and ellipticity measurement mechanism (47) are made up of main dial gauge (1) and table bar (4), positioning handle (5), gauge head (6) and main measuring point (7), main measuring point (7) is contained in little round platform (14) opposite side corresponding to gauge head (6), and with the central point of gauge head (6) and circular dull and stereotyped (11) on same axial plane.90 ° of roundness measurement mechanisms (45) are by 90 ° of circularity dial gauges (2) and table bar (4), positioning handle (5), gauge head (6) and main measuring point (7), second measuring point (8) is formed, becoming on the direction of 90 ° of angles with main measuring point (7), in little round platform (14) one sides second measuring point (8) is housed, the gauge head (6) of 90 ° of circularity dial gauges (2) points to the axis of circular dull and stereotyped (11), and is parallel to the bisector of 90 ° of angles between main measuring point (7) and second measuring point (8).120 ° of roundness measurement mechanisms (46) are by 120 ° of circularity dial gauges (3) and table bar (4), positioning handle (5), gauge head (6) and main measuring point (7), the 3rd measuring point (9) is formed, becoming on the direction of 60 ° of angles with main measuring point, in little round platform (14) opposite side the 3rd measuring point (9) is housed, the gauge head (6) of 120 ° of circularity dial gauges (3) points to the axis of circular dull and stereotyped (11), and is parallel to the bisector of 60 ° of angles between main measuring point (7) and the 3rd measuring point (9).Taper measurement mechanism (48) and squareness measurement mechanism (49) are made up of main dial gauge and table bar (4), positioning handle (5), gauge head (6) and main measuring point (7), table bar (4) can be made lift adjustment by table bar handle (19), change the thickness of measuring point support pad (16), can regulate the height of measuring point support (10), and then change the height state of main measuring point (7).Wall thickness difference measurements mechanism (50) is by table bar (31) and the positioning handle (5) thereof of touching the pillow, gauge head (6) and main dial gauge (1), thickness measuring point (29), auxiliary measuring point (33), thickness measuring support (28) and thickness measuring pad compositions such as (30), be folded down the table bar (4) of main dial gauge (1), loading onto the table bar (31) of touching the pillow matches with main dial gauge (1), thickness measuring pad (30) on the little round platform (14) and thickness measuring support (28) are fixed on the central point of circular dull and stereotyped (11) by dog screw (15), thickness measuring point (29) on the thickness measuring support (28) is positioned between the axis of gauge head (6) and circular dull and stereotyped (11), and thickness measuring point (29) and gauge head (6) are on a straight line that is parallel to circular dull and stereotyped (11), angle between auxiliary measuring point (33) and the thickness measuring point (29) is 90 °, the height of thickness measuring support (28) can be regulated by the thickness that changes thickness measuring pad (30), the table bar (31) of touching the pillow can be touched the pillow mobile as side direction, and can make lift adjustment by table bar handle (19).Width measure mechanism (51) is by hotlist bar (21) and release handle (24) thereof, web joint (25), water-glass bar (22), dial gauge (33), the wide positioning table of survey (26) on width gauge head (20) and the base (18), pilot hole (27) are formed, web joint (25) is connected with the pilot hole (27) of positioning table (26), hotlist bar (21) does lifting by release handle (24) or rotation is regulated, water-glass bar (22) can move horizontally, and an end of water-glass bar (22) is equipped with the dial gauge (33) of bandwidth gauge head (20).Symmetry measuring mechanism (52) is by main dial gauge (1) and show bar (4), positioning handle (5), gauge head (6), symmetry surveys part (32) and symmetry measuring point (36) is formed, and the symmetry survey part (32) that has symmetry measuring point (36) is fixed on the central point of circular dull and stereotyped (11) by dog screw (15).Coplane degree measuring mechanism (35) is by main dial gauge (1) and positioning handle (5) thereof, gauge head (6), lengthening table bar (38) and table bar handle (19) thereof, cantilever lever (39), bearing (37), rotating shaft (42), coplane degree survey part (41), frame (43) and coplane degree measuring point (40) are surveyed in activity, and are made up of the symmetry survey part parts such as (32) that dog screw (15) is fixed on circular dull and stereotyped (11); Lengthening table bar (38) can carry out lift adjustment by table bar handle (19), cantilever lever (39) one ends are fixed on the lengthening table bar (38), the other end is equipped with bearing (37), bearing (37) is passed in rotating shaft (42), shape according to tested (34), can coplane degree be housed at rotating shaft (42) one ends and survey part (41), the other end is equipped with the activity survey frame (43) of band coplane degree measuring point (40); Perhaps frame (43) being surveyed in the activity of coplane degree survey part (41) degree of being coplanar with the strap measuring point (40) is contained in the rotating shaft (42) of bearing (37) the same side.
The utility model can be finished following measuring process respectively: outside dimension, 90 ° of external diameter circularity, 120 ° of external diameter circularity, outside diameter variation in the single sagittal plane (ovality), mean outside diameter variation (tapering), external diameter bus inclination variation (verticality), thickness variation amount (wall thickness is poor), width and width variation amount, symmetry and coplane degree or the like.
The utility model can be finished multiple measuring process, so can realize the purpose of the multiple function of a kind of instrument because only need dispose corresponding table bar and dial gauge on base; Simultaneously because to have multiple measurement assembly supporting with roundness measuring equipment, thus can the simplified measurement running program, the raising efficiency of measurement; The utility model also has simple in structure, easy to use and measuring accuracy advantages of higher.
Concrete structure of the present utility model provides with following embodiment and accompanying drawing thereof.
Fig. 1 is a structural representation; Fig. 2 is that E is to view; Fig. 3 is a side sectional view; Fig. 4 is a thickness measuring assembly synoptic diagram; Fig. 5 is a thickness measuring assembly mansion view; Fig. 6 surveys wide assembly synoptic diagram; Fig. 7 is that symmetry is surveyed the part synoptic diagram; Fig. 8 is a symmetry measuring mechanism synoptic diagram; Fig. 9 is a coplane degree measuring mechanism synoptic diagram; Figure 10 is a coplane degree measuring mechanism mansion view.
1, main dial gauge, 2,90 ° of circularity dial gauges, 3,120 ° of circularity dial gauges, 4, the table bar, 5, positioning handle, 6, gauge head, 7, main measuring point, 8, second measuring point, 9, the 3rd measuring point, 10, the measuring point support, 11, circular dull and stereotyped, 12, dull and stereotyped trip bolt, 13, measuring point support trip bolt, 14, little round platform, 15, dog screw, 16, measuring point support pad, 17, hexagonal nut, 18, base, 19, table bar handle, 20, the width gauge head, 21, the hotlist bar, 22, the water-glass bar, 23, dial gauge, 24, release handle, 25, web joint, 26, survey wide positioning table, 27, pilot hole, 28, the thickness measuring support, 29, the thickness measuring point, 30, the thickness measuring pad, 31, the table bar of touching the pillow, 32, symmetry is surveyed part, 33, auxiliary measuring point, 34, tested, 35, the coplane degree measuring mechanism, 36, the symmetry measuring point, 37, bearing, 38, lengthening table bar, 39, cantilever lever, 40, the coplane degree measuring point, 41, coplane degree is surveyed part, 42, rotating shaft, 43, movable frame, 44 surveyed, measuring outside diameter mechanism, 45,90 ° of roundness measurement mechanisms, 46,120 ° of roundness measurement mechanisms, 47, ellipticity measurement mechanism, 48, taper measurement mechanism, 49, squareness measurement mechanism, 50, wall thickness difference measurements mechanism, 51, width measure mechanism, 52, the symmetry measuring mechanism.
Below in conjunction with details and the working condition of accompanying drawing detailed description according to the concrete roundness measuring equipment that the utility model proposes.
When carrying out measuring outside diameter, at first tested (34) are placed on the little round platform (14), tested (34) contact with main measuring point (7), tested (34) corresponding site of gauge head (6) contact of main dial gauge (1), main dial gauge (1) can indicate the outside dimension of tested (34).
When carrying out 90 ° of roundness measurements, tested (34) are placed on the little round platform (14), tested (34) contact with second measuring point (8) with main measuring point (7), the corresponding site of gauge head (6) contact tested (34) of 90 ° of circularity dial gauges (2), rotate more than tested (34) one week, the indicating value variation of 90 ° of circularity dial gauges (2) is promptly represented 90 ° of circularity of tested (34).
When carrying out 120 ° of roundness measurements, place little round platform (14) last tested (34) to contact with the 3rd measuring point (9) with tested (34) with main measuring point (7), the corresponding site of gauge head (6) contact tested (34) of 120 ° of circularity dial gauges (3), rotate more than tested (34) one week, the indicating value variation of 120 ° of circularity dial gauges (3) is promptly represented 120 ° of circularity of tested (34).
When outside diameter variation in carrying out single sagittal plane (ovality) is measured, tested (34) are placed on the little round platform (14), tested (34) contact with second measuring point (8) with main measuring point (7), tested (34) corresponding site of gauge head (6) contact of main dial gauge (1), rotate more than tested (34) one week, the indicating value variable quantity of main dial gauge (1) is promptly represented outside diameter variation (ovality) in the single sagittal plane of tested (34).
When averaging outside diameter variation (tapering) measurement, a bottom surface with tested (34) places on the little round platform (14) earlier, adjust the thickness of measuring point support pad (16) and the height of table bar (4), make the gauge head (6) of main measuring point (7) second measuring points (8) and main dial gauge (1) wait 3 one of compositions to be parallel to the cross section of little round platform (14) and close tested (34) bottom surface.Rotate more than tested (34) one week, main dial gauge (1) is promptly indicated variable quantity.And then another end face tune of tested (34) placed on the little round platform (14), then repeat above-mentioned measuring process.Two variable quantities of twice measurement poor promptly represented the mean outside diameter variation (tapering) of tested (34).
When carrying out external diameter bus degree of tilt variation (verticality) measurement, tested (34) are placed on the little round platform (14), and the thickness of regulating measuring point support pad (16) makes its main measuring point (7) and second measuring point (8) all be in sustained height position on the little round platform (14).Again the gauge head (6) of main dial gauge (1) is adjusted on another height and position of little round platform (14), and make the main gauge head (6) of surveying instrument (1) contact the corresponding site of tested (34), rotate more than tested (34) one week, the variable quantity of main dial gauge (1) indication is the external diameter bus degree of tilt variation (verticality) of tested (34).
When carrying out thickness variation amount (wall thickness is poor) measurement, the table bar (4) that is folded down main dial gauge (1) is changed the table bar (31) of touching the pillow, and main dial gauge (1) is contained on the table bar (31) of touching the pillow.Thickness measuring support (28) is contained in the little round platform (14), thickness measuring point (29) on the thickness measuring point support (28) contacts with the inwall of tested (34) with auxiliary measuring point (33), the gauge head (6) of main dial gauge (1) contacts with the outer wall of tested (34), rotate more than tested (34) one week, the indicating value variable quantity of main dial gauge (1) is promptly represented the thickness variation amount (wall thickness is poor) of tested (34).
When carrying out width dimensions and width variation measurement amount, the web joint (25) of width measure mechanism (51) is connected with the pilot hole (27) of surveying wide positioning table (26).Tested (34) place on the little round platform (14).Regulating and controlling handle (24), adjustment hotlist bar (21) make the width gauge head (20) of dial gauge (23) contact with the axial end of tested (34) with water-glass bar (22), at this moment, dial gauge (23) can indicate the width dimensions of tested (34), rotate more than tested (34) one week, the indicating value variable quantity of dial gauge (23) is promptly represented the width variation amount (depth of parallelism) of tested (34).
When carrying out the symmetry error measurement, the little round platform (14) that is folded down on circular dull and stereotyped (11) is loaded onto symmetry survey part (32), symmetry measuring point (36) is contacted with tested (34), the gauge head (6) of main dial gauge (1) contacts with the corresponding site of tested (34), and at this moment main dial gauge (1) indicates a value.Changing another antimere of tested (34) measures, symmetry measuring point (36) is contacted with tested (34), the gauge head (6) of main dial gauge (1) contacts with the corresponding site of tested (34), at this moment, main dial gauge (1) indicates another value, and the difference of two values is promptly represented the symmetry error of tested (34).
When carrying out the coplane degree error measure, utilize the symmetry on circular dull and stereotyped (11) to survey part (32), its symmetry measuring point (36) is contacted with tested (34).The lengthening table bar (38) of coplane degree measuring mechanism (35) is contained on the base (18), regulate the height of lengthening table bar (38), coplane degree measuring point (40) is contacted with tested (34), the gauge head (6) of main dial gauge (1) is surveyed part (41) with coplane degree and is contacted, and at this moment main dial gauge (1) promptly indicates the coplane degree error of tested (34).
Claims (7)
1, a kind of multi-functional mechanical formula compares and measures roundness measuring equipment, it is characterized in that can disposing on the base (18) measuring outside diameter mechanism (44), 90 ° of roundness measurement mechanisms (45), 120 °
Roundness measurement mechanism (46), ellipticity measurement mechanism (47), taper measurement mechanism (48), squareness measurement mechanism (49), wall thickness difference measurements mechanism (50), width measure mechanism (51), symmetry measuring mechanism (52) and coplane degree measuring mechanism (35), can dispose little round platform (14) on circular dull and stereotyped (11), main measuring point (7), second measuring point (8), the 3rd measuring point (9), thickness measuring support (28), width gauge head (20), symmetry surveys part (32) and coplane degree is surveyed part (41), circular dull and stereotyped (11) are positioned on the base (18) by dull and stereotyped trip bolt (12), by gauge head (6) and corresponding main dial gauge (1), the straight line parallel of the symcenter of 90 ° of circularity dial gauges (2) and 120 ° of circularity dial gauges (3) is in circular dull and stereotyped (11), and on the axial plane by circular dull and stereotyped (11) center.
2, roundness measuring equipment according to claim 1, it is characterized in that becoming on the direction of 90 ° of angles with the main measuring point (7) of 90 ° of roundness measurement mechanisms (45), in little round platform (14) one sides second measuring point (8) is housed, the gauge head (6) of 90 ° of circularity dial gauges (2) points to the axis of circular dull and stereotyped (11), and is parallel to the bisector of 90 ° of angles between main measuring point (7) and second measuring point (8).
3, roundness measuring equipment according to claim 1, it is characterized in that becoming on the direction of 60 ° of angles with main measuring point (7), in little round platform (14) opposite side the 3rd measuring point (9) is housed, the gauge head (6) of 120 ° of circularity dial gauges (3) points to the axis of circular dull and stereotyped (11), and is parallel to the bisector of 60 ° of angles between main measuring point (7) and the 3rd measuring point (9).
4, roundness measuring equipment according to claim 1 is characterized in that changing the thickness of the measuring point support pad (16) of taper measurement mechanism (48), can regulate the height of measuring point support (10), and then change the height state of main measuring point (7).
5, roundness measuring equipment according to claim 1, the main dial gauge (1) that it is characterized in that wall thickness difference measurements mechanism (50) is contained on the table bar (31) of touching the pillow, thickness measuring pad (30) on the little round platform (14) and thickness measuring support (28) are fixed on the central point of circular dull and stereotyped (11) by dog screw (15), thickness measuring point (29) on the thickness measuring support (28) is positioned between the axis of gauge head (6) and circular dull and stereotyped (11), and thickness measuring point (29) and gauge head (6) are on a straight line that is parallel to circular dull and stereotyped (11), angle between auxiliary measuring point (33) and the thickness measuring point (29) is 90 °, the height of thickness measuring support (28) can be regulated by the thickness that changes thickness measuring pad (30), touch the pillow the table bar (31) can touch the pillow as side direction mobile, the degree and can by the table bar handle (19) make lift adjustment.
6, according to the roundness measuring equipment of claim 1 art, the symmetry measuring point (36) that it is characterized in that symmetry measuring mechanism (52) is contained on the symmetry survey part (32), and symmetry is surveyed part (32) and is fixed on the central point of circular dull and stereotyped (11) by dog screw (15).
7, roundness measuring equipment according to claim 1, the lengthening table bar (38) that it is characterized in that coplane degree measuring mechanism (35) can carry out lift adjustment by table bar handle (19), cantilever lever (39) one ends are fixed on the lengthening table bar (38), the other end is equipped with bearing (37), bearing (37) is passed in rotating shaft (42), shape according to tested (34), can load onto coplane degree at rotating shaft (42) one ends and survey part (41), the other end is loaded onto the activity of band coplane degree measuring point (40) and is surveyed frame (43), perhaps frame (43) is surveyed in the activity of coplane degree survey part (41) degree of being coplanar with the strap measuring point (40) and is contained in the rotating shaft (42) of bearing (37) the same side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90209129 CN2074007U (en) | 1990-06-20 | 1990-06-20 | Multifunctional mechanical type comparative measuring roundness instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90209129 CN2074007U (en) | 1990-06-20 | 1990-06-20 | Multifunctional mechanical type comparative measuring roundness instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2074007U true CN2074007U (en) | 1991-03-27 |
Family
ID=4889253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90209129 Withdrawn CN2074007U (en) | 1990-06-20 | 1990-06-20 | Multifunctional mechanical type comparative measuring roundness instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2074007U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852583A (en) * | 2009-04-01 | 2010-10-06 | 鸿富锦精密工业（深圳）有限公司 | Circularity detection device |
| CN102331220A (en) * | 2011-07-19 | 2012-01-25 | 大连液压件有限公司 | Non-roundness inner curve symmetry degree measurement instrument |
| CN102954743A (en) * | 2011-08-20 | 2013-03-06 | 上海龙钰电梯配件有限公司 | Sine wheel detecting device |
| CN103791801A (en) * | 2014-02-28 | 2014-05-14 | 三星高新电机（天津）有限公司 | Measuring tool for roundness of glass circular disk and measuring method thereof |
| CN105865295A (en) * | 2016-05-06 | 2016-08-17 | 无锡安士达五金有限公司 | Tester for structural rivets and rivet nuts |
| CN109798861A (en) * | 2019-02-27 | 2019-05-24 | 中国兵器装备集团自动化研究所 | A kind of detonator electrode plug flatness inspection devices and its measurement method |
| CN111272123A (en) * | 2020-03-31 | 2020-06-12 | 中国航发动力股份有限公司 | Device and method for detecting roundness and diameter of ball for measuring pin of coordinate measuring machine |
-
1990
- 1990-06-20 CN CN 90209129 patent/CN2074007U/en not_active Withdrawn
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852583A (en) * | 2009-04-01 | 2010-10-06 | 鸿富锦精密工业（深圳）有限公司 | Circularity detection device |
| CN101852583B (en) * | 2009-04-01 | 2013-07-31 | 鸿富锦精密工业（深圳）有限公司 | Circularity detection device |
| CN102331220A (en) * | 2011-07-19 | 2012-01-25 | 大连液压件有限公司 | Non-roundness inner curve symmetry degree measurement instrument |
| CN102954743A (en) * | 2011-08-20 | 2013-03-06 | 上海龙钰电梯配件有限公司 | Sine wheel detecting device |
| CN103791801A (en) * | 2014-02-28 | 2014-05-14 | 三星高新电机（天津）有限公司 | Measuring tool for roundness of glass circular disk and measuring method thereof |
| CN105865295A (en) * | 2016-05-06 | 2016-08-17 | 无锡安士达五金有限公司 | Tester for structural rivets and rivet nuts |
| CN109798861A (en) * | 2019-02-27 | 2019-05-24 | 中国兵器装备集团自动化研究所 | A kind of detonator electrode plug flatness inspection devices and its measurement method |
| CN111272123A (en) * | 2020-03-31 | 2020-06-12 | 中国航发动力股份有限公司 | Device and method for detecting roundness and diameter of ball for measuring pin of coordinate measuring machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202204445U (en) | Bearing clearance measuring device | |
| CN101571374A (en) | Error detecting system of minitype high accuracy three coordinate measuring machine | |
| CN106643437A (en) | Coaxiality measuring device and method for mechanical part | |
| CN2074007U (en) | Multifunctional mechanical type comparative measuring roundness instrument | |
| CN203185073U (en) | Tool setting gauge of machine tool | |
| CN200982850Y (en) | Square measuring rule for bearing | |
| CN212747643U (en) | Building concrete wall hangs down straightness detection device | |
| CN1156682C (en) | Measurer for mass center, figure center and mass center deviation of object | |
| CN216898709U (en) | High-precision straightness detection tool | |
| CN87201349U (en) | Bearing inner race rollaway nest place and radius measure gauge | |
| CN212458213U (en) | Rolling linear guide hole pitch detection device | |
| CN212762484U (en) | Improved ball bar instrument for simultaneously detecting multidimensional errors of machine tool | |
| CN105783791A (en) | Precise small angle measurement device | |
| CN218822005U (en) | Be used for bar detector of beating | |
| CN2264894Y (en) | Portable shape and position detector | |
| CN111922783A (en) | Machine tool multidimensional geometric error measuring method based on lever principle | |
| CN214224039U (en) | Angular contact ball bearing outer ring slope height measuring device | |
| CN219608059U (en) | Level bar calibrating device | |
| CN217179457U (en) | Special distance measuring meter | |
| JP2909872B2 (en) | Gear tooth surface measuring device | |
| CN213301055U (en) | Double-layer inner diameter measurement gauge | |
| CN219653452U (en) | Road surface roughness detects instrument | |
| CN213515965U (en) | High stable platform scale | |
| CN219390804U (en) | Measuring tool for measuring depth of central hole | |
| CN2160882Y (en) | Shallow hole inside diameter dial gauge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |