CN208505145U - A kind of three-jaw survey slot micrometer - Google Patents
A kind of three-jaw survey slot micrometer Download PDFInfo
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- CN208505145U CN208505145U CN201820948797.1U CN201820948797U CN208505145U CN 208505145 U CN208505145 U CN 208505145U CN 201820948797 U CN201820948797 U CN 201820948797U CN 208505145 U CN208505145 U CN 208505145U
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- jaw
- micrometer
- monodactyle
- claw
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Abstract
The utility model discloses a kind of three-jaw survey slot micrometer comprising micrometer matrix, monodactyle measuring claw and double pawl measuring claws；Wherein, micrometer matrix it include the screw sleeve being successively spirally connected from the inside to the outside, scale casing and measurement casing.Monodactyle measuring claw is set to one end of screw sleeve, double pawl measuring claws are set to scale casing close to one end of monodactyle measuring claw, or double pawl measuring claws are set to one end of screw sleeve, monodactyle measuring claw is set to scale casing close to one end of double pawl measuring claws, and the two is oppositely arranged；Monodactyle measuring claw includes the first measuring jaw；Double pawl measuring claws include the second measuring jaw and third measuring jaw, and the first measuring jaw is located on the perpendicular bisector of the second measuring jaw and third measuring jaw bottom end line.The utility model can more simply and easily find test angle accurately, i.e. micrometer central axis is parallel with tested slot groove width direction, obtain accurate groove width data, while reducing repeatedly the movement of centering, prevent plowing from the both ends side wall of slot, influence the appearance of part.
Description
Technical field
The utility model relates to micrometer technical fields, survey slot micrometer more particularly, to a kind of three-jaw.
Background technique
At present, it is common to use survey slot micrometer to measure the slot inner width size of part.It is existing for measuring flume inner width
Surveying slot micrometer is typically all two pawls, when measuring groove width size it is difficult to ensure that the measurement direction i.e. micrometer of micrometer
Central axis it is parallel with tested slot groove width direction.And the existing skilled operation degree requirement for surveying slot micrometer to operator
There is measurement error greatly and measure consistency difference, while during centering repeatedly, being also easy to scratch measured object in height
Body influences the appearance of testee.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of three-jaw survey slot micrometer comprising micrometer matrix,
Monodactyle measuring claw and double pawl measuring claws.Wherein, micrometer matrix includes the screw sleeve being successively spirally connected from the inside to the outside, scale casing
With measurement casing, the central axis of three is conllinear；Monodactyle measuring claw is set to one end of screw sleeve, and double pawl measuring claws are set to quarter
Casing is spent close to one end of monodactyle measuring claw, and the two is oppositely arranged；Or double pawl measuring claws are set to one end of screw sleeve, monodactyle
Measuring claw is set to scale casing close to one end of double pawl measuring claws, and the two is oppositely arranged；
Monodactyle measuring claw includes the first measuring jaw, and the first measuring jaw is perpendicular to screw sleeve；
Double pawl measuring claws include the second measuring jaw and third measuring jaw, and the second measuring jaw and third measuring jaw are with the central axis of screw sleeve
For axial symmetry and perpendicular to screw sleeve；The bottom end of first measuring jaw, the second measuring jaw and third measuring jaw three is in same level,
And first the bottom end of measuring jaw be located on the perpendicular bisector of the second measuring jaw and third measuring jaw bottom end line.
Further, the first measuring jaw and the second measuring jaw, third measuring jaw it is opposite be respectively perpendicular to screw sleeve on one side.
Further, monodactyle measuring claw further includes the first gauge head, is connected to the bottom end of the first measuring jaw；Double pawl measuring claws are also
Including the second gauge head and third gauge head, the second gauge head is connected to the bottom end of the second measuring jaw, and third gauge head is set to the bottom of third measuring jaw
End.
Further, the first gauge head, the second gauge head and the opposite one side of third gauge head respectively with the first measuring jaw, the second measuring jaw
The one side opposite with third measuring jaw is on same vertical plane；The opposite one side of three is respectively cambered surface.
Further, the outer surface of screw sleeve is equipped with guide groove and guide spiro rod, and clamping is slided in one end of guide spiro rod
In guide groove, the other end is connect with one of monodactyle measuring claw and double pawl measuring claws.
Further, when monodactyle measuring claw is set to the other end of scale casing, double pawl measuring claws are set to screw sleeve
The other end when, monodactyle measuring claw further includes the first fixed cylinder, and the first fixed cylinder is set to the other end of scale casing；First measuring jaw
Set on the bottom of the first fixed cylinder, and the two is integrally formed；Double pawl measuring claws further include the second fixed cylinder, the second fixed cylinder
Set on the other end of screw sleeve；Second measuring jaw and third measuring jaw are separately connected to the bottom of the second fixed cylinder, and three respectively
Person is integrally formed.
Further, the top of the first fixed cylinder is equipped with the first fixation hole；It is solid that the other end of guide spiro rod is bolted in first
Determine hole.
Further, when monodactyle measuring claw is set to the other end of screw sleeve, double pawl measuring claws are set to scale casing
The other end when, monodactyle measuring claw further includes the first fixed cylinder, and the first fixed cylinder is set to the other end of screw sleeve；First measuring jaw
Set on the bottom of the first fixed cylinder, and the two is integrally formed；Double pawl measuring claws further include the second fixed cylinder, the second fixed cylinder
Set on the other end of scale casing；Second measuring jaw and third measuring jaw are separately connected to the bottom of the second fixed cylinder, and three respectively
Person is integrally formed.
Further, the top of the second fixed cylinder is equipped with the second fixation hole；It is solid that the other end of guide spiro rod is bolted in second
Determine hole.
Further, micrometer matrix is mechanical survey slot micrometer or is that electronic digital display surveys slot micrometer.
Compared with prior art, the utility model can be obtained including following technical effect:
The three-jaw of the application surveys slot micrometer and passes through the second gauge head of the first gauge head of monodactyle measuring claw and double pawl measuring claws
The two sides for abutting tested slot respectively with third gauge head, obtain three contact points, determine an isosceles triangle by this 3 points, and survey
The groove width direction of the central axis of micro- screw rod and tested slot is parallel with the height of this isosceles triangle respectively, is distinguished according to geometrical principle
Collinear two straight line parallels being parallel on same plane, to can determine the central axis and tested slot of micrometric screw
Groove width direction is parallel, that is, has found the measurement position for measuring tested slot groove width accurately, can accurately measure the groove width of tested slot, simultaneously
The movement for reducing repeatedly centering prevents plowing from the both ends side wall of slot, influences the appearance of part.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is the perspective view of the three-jaw micrometer in embodiment one；
Fig. 2 is the explosive view of the three-jaw micrometer in embodiment one；
Fig. 3 is the schematic diagram of the monodactyle measuring claw and double pawl measuring claws in embodiment one；
Fig. 4 is the perspective view for applying the three-jaw micrometer in example two；
The explosive view of three-jaw micrometer in two for Fig. 5；
Fig. 6 is the schematic diagram for applying monodactyle measuring claw and double pawl measuring claws in example two.
Description of symbols
1- micrometer matrix, 11- screw sleeve, 12- scale casing, 13- measure casing, 2- monodactyle measuring claw, the bis- pawls of 3-
Measuring claw, the first measuring jaw of 21-, the first gauge head of 22-, the first fixes sleeve of 23-, the second measuring jaw of 31-, 32- third measuring jaw, 33-
Two gauge heads, 34- third gauge head, the second fixed cylinder of 35-, 111- guide groove, 112- guide spiro rod, the first fixation hole of 231-, 351-
Second fixation hole.
Specific embodiment
Multiple embodiments that the utility model will be disclosed with schema below, as clearly stated, in many practices
Details will be explained in the following description.It should be appreciated, however, that the details in these practices does not apply this with limitation practical new
Type.That is, the details in these practices is non-essential in some embodiments of the utility model.In addition, for letter
For the sake of changing schema, some known usual structures and component will be painted it in the drawings in simply illustrative mode.
In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, and non-specifically
The meaning of order or cis-position is censured, it is also non-to limit the utility model, it is retouched just for the sake of difference with same technique term
The component stated or operation are not understood to indicate or imply its relative importance or implicitly indicate indicated technology
The quantity of feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not within the protection scope of the requires of the utility model.
Embodiment one
Fig. 1 to Fig. 3 is please referred to, Fig. 1 is the perspective view of the three-jaw micrometer in embodiment one, and Fig. 2 is in embodiment one
The explosive view of three-jaw micrometer, Fig. 3 are the schematic diagram of the monodactyle measuring claw and double pawl measuring claws in embodiment one.Such as Fig. 1 to Fig. 3
Shown, three-jaw disclosed in the present application surveys slot micrometer, including micrometer matrix 1, monodactyle measuring claw 2 and double pawl measuring claws 3,
In, micrometer matrix 1 is identical as micrometer commonly used in the prior art, can be mechanical micrometer, is also possible to electronics
Digital display type micrometer.Micrometer matrix 1 includes the screw sleeve 11 being successively arranged from the inside to the outside, scale casing 12 and measurement casing
13, the central axis of three is conllinear.One end of screw sleeve 11 is spirally connected with scale casing 12, and scale casing 12 is far from the screw rod set
One end of the other end of pipe 11 is spirally connected with measurement casing 13.Further, the outer surface of screw sleeve 11 be equipped with guide groove 111 and
One end sliding of guide spiro rod 112, guide spiro rod 112 is connected in guide groove 111, the other end and monodactyle measuring claw 2 and double pawls
The connection of one of measuring claw 3.Guide spiro rod 112 can be moved along guide groove 111, and limit monodactyle measuring claw 2 or double pawls simultaneously
Measuring claw 3 rotates and influences the accuracy of measurement relative to screw sleeve 11.
Monodactyle measuring claw 2 is set to the other end of scale casing 12, and double pawl measuring claws 3 are set to the another of screw sleeve 11
One end, the two are oppositely arranged.Wherein, monodactyle measuring claw 2 includes the first measuring jaw 21 and the first fixed cylinder 23, and the first fixed cylinder 23 is set
In the other end of scale casing 12, the first measuring jaw 21 is set to the bottom of the first fixed cylinder 23 and perpendicular to screw sleeve 11, and first
What both measuring jaw 21 and the first fixes sleeve 23 were integrally formed.Further, the top of the first fixed cylinder 23 is additionally provided with first
Fixation hole 231, guide spiro rod 112 are bolted in the first fixation hole 231.In actual use, wheel measuring casing 13, measuring unit
Pipe 13 drives scale casing 12 mobile, and scale casing 12 drives the monodactyle measuring claw 2 for being fixed on its other end along screw sleeve
11 guide groove 111 slides.
Double pawl measuring claws 3 include the second measuring jaw 31, third measuring jaw 32 and the second fixed cylinder 35, and the second fixed cylinder 35 is set to spiral shell
The other end of rod bush 11, the second measuring jaw 31 and third measuring jaw 32 are separately connected to the bottom of the second fixed cylinder 35 respectively, and
Second measuring jaw 31 and third measuring jaw 32 are using the central axis of screw sleeve 11 as axial symmetry.Second measuring jaw 31, third measuring jaw 32 and
Two fixed cylinders, 35 three is integrally formed.The bottom end of 32 three of first measuring jaw 21, the second measuring jaw 31 and third measuring jaw is in same
The bottom end of horizontal plane, the first measuring jaw 21 is located on the perpendicular bisector of 32 bottom end line of the second measuring jaw 31 and third measuring jaw, and hangs down in this
Line is parallel to the central axis of screw sleeve 11.Preferably, the first measuring jaw 21 and the second measuring jaw 31, third measuring jaw 32 it is opposite one
Face is respectively perpendicular to screw sleeve 11.In actual use, testee can be connected in the first measuring jaw 21 and the second measuring jaw 31,
Between third measuring jaw 32, make that the two sides of measured object fit in the first measuring jaw 21 and the second measuring jaw 31 respectively, third measuring jaw 32 hangs down
It faces directly, to measure the width or length of testee.
Further, monodactyle measuring claw 2 further includes the first gauge head 22, is connected to the bottom end of the first measuring jaw 21；Double pawls are surveyed
Measuring jaw 3 further includes the second gauge head 33 and third gauge head 34, and the second gauge head 33 is connected to the bottom end of the second measuring jaw 31, third gauge head
34 are set to the bottom end of third measuring jaw 32.
Still further, the first gauge head 22, the second gauge head 33 and the opposite one side of third gauge head 34 respectively with the first measuring jaw
21, for the second measuring jaw 33 one side opposite with third measuring jaw on same vertical plane, the opposite one side of three is respectively cambered surface.
Specifically, when the first fixed cylinder 23 of monodactyle measuring claw 2 and the second fixed cylinder 35 of double pawl measuring claws 3 are supported relatively
When connecing, the reading on scale casing 12 is initial reading.When measuring the width of groove body, by the first gauge head of monodactyle measuring claw 2
22, in the second gauge head 33 and the tested slot of the insertion of third gauge head 34 of double pawl measuring claws 3, make the second gauge head 33 and third first
The back side of gauge head 34 is connected to the side inner wall of tested slot；Then wheel measuring casing 13 is to drive scale casing 12 and monodactyle to survey
Measuring jaw 2 is mobile, so that monodactyle measuring claw 2 is moved along screw sleeve 11.First when the first measuring jaw 21 of monodactyle measuring claw 2 surveys
First 22 back side is connected to the other side of tested slot, stops rotating and measures casing 13.First gauge head 22 of monodactyle measuring claw 2
The contact line of cambered surface and cell wall where the back side is tangent line, the back side of the second gauge head 33 and third gauge head 34 of double pawl measuring claws 3
The cambered surface at place and the contact line of cell wall are respectively tangent line, and the bottom end of three tangent lines connects form isosceles triangle two-by-two, are tested
The groove width of the slot i.e. height of the isosceles triangle, and the height of the isosceles triangle is equal to scale casing 12 in 11 axial direction of screw sleeve
Mobile distance adds the initial reading of scale casing 12.Therefore, the groove width of tested slot is the scale set on micrometer matrix 1
The reading of pipe 12.
Embodiment two
Fig. 4 to Fig. 5 is please referred to, Fig. 4 is the perspective view of the three-jaw micrometer in embodiment two, and Fig. 5 is in embodiment two
The explosive view of three-jaw micrometer, Fig. 6 are the schematic diagram of the monodactyle measuring claw and double pawl measuring claws in embodiment two.Such as fig. 4 to fig. 6
Shown, the basic structure of the present embodiment is the same as example 1, and the main distinction is, monodactyle measuring claw 2 is set to screw sleeve
11 other end, double pawl measuring claws 3 are set to the other end of scale casing 12.
Further, the top of the second fixes sleeve 33 is additionally provided with the second fixation hole 351；One end of guide spiro rod 112 is sliding
The dynamic guide groove 111 for being connected in screw sleeve 11, the other end are bolted in the second fixation hole 351.In actual use, rotation is surveyed
Casing 13 is measured, measurement casing 13 drives scale casing 12 mobile, and scale casing 12 drives the double pawls measurement for being fixed on its other end
Pawl 3 is slided along the guide groove 111 of screw sleeve 11.
Specifically, when measuring the width of groove body, by the of the first gauge head 22 of monodactyle measuring claw 2 and double pawl measuring claws 3
Two gauge heads 33 and third gauge head 34 are inserted into tested slot, are connected to the back side of the first gauge head 22 in the side of tested slot
Wall；Then wheel measuring casing 13 is mobile to drive scale casing 12 and double pawl measuring claws 3, so that double pawl measuring claws 3 are along spiral shell
Rod bush 11 is mobile.When the second gauge head 33 of double pawl measuring claws 3 and the back side of third gauge head 34 are connected to the another of tested slot respectively
Side stops rotating and measures casing 13.Contact of the cambered surface with cell wall where the back side of first gauge head 22 of monodactyle measuring claw 2
Line is tangent line, the contact line point of cambered surface and cell wall where the second gauge head 33 of double pawl measuring claws 3 and the back side of third gauge head 34
Not Wei tangent line, the bottom end of three tangent lines connects form isosceles triangle two-by-two, be tested the groove width i.e. height of the isosceles triangle of slot,
And the height of the isosceles triangle is to be equal to scale casing 12 to add scale casing 12 in the distance that screw sleeve 11 moves axially
Initial reading.Therefore, the groove width for being tested slot is the reading of the scale casing 12 on micrometer matrix 1.
In conclusion the contact line of cambered surface and cell wall where the back side of the first gauge head of the monodactyle measuring claw of the application is
The contact line of cambered surface and cell wall where tangent line, the second gauge head of double pawl measuring claws and the back side of third gauge head is respectively tangent line,
The bottom end of three tangent lines connects form isosceles triangle two-by-two, is tested the groove width i.e. height of the isosceles triangle of slot.According to geometry
The height of principle isosceles triangle is the perpendicular bisector section on its bottom edge, the i.e. perpendicular bisector of the second gauge head and third gauge head endpoint line.And
The perpendicular bisector of the endpoint line of second gauge head and third side head is parallel to the central axis of screw sleeve, to can determine screw sleeve
Central axis it is parallel with the groove width direction of tested slot, that is, found the test position for measuring tested slot groove width accurately, reduced and look for repeatedly
Positive movement prevents plowing from the both ends side wall of slot, influences the appearance of part and can accurately measure the groove width of tested slot.In addition,
Double pawls of the application survey slot micrometer can also by the first measuring jaw of monodactyle measuring claw and the second measuring jaw of double pawl measuring claws and
The vertical plane that third measuring jaw is oppositely arranged clamps testee, for measuring the width or length of testee.The reading measured
The width or length of the i.e. measured testee of the initial reading of several micrometers for subtracting the application, to extend the application
Micrometer purposes, be not limited only to measure the groove width of tested slot, can be also used for the outer diameter i.e. testee for measuring tested slot
Width or length.
Upper described only the embodiments of the present invention, is not intended to limit the utility model.For this field
For technical staff, various modifications and changes may be made to the present invention.The interior institute of all spirit and principle in the utility model
Any modification, equivalent substitution, improvement and etc. of work should all include within the scope of the claims of the utility model.
Claims (10)
1. a kind of three-jaw surveys slot micrometer, including micrometer matrix (1) comprising the screw sleeve being successively spirally connected from the inside to the outside
(11), scale casing (12) and measurement casing (13), the central axis of three are conllinear；It is characterized in that, further including monodactyle measuring claw
(2) and double pawl measuring claws (3), the monodactyle measuring claw (2) are set to one end of the screw sleeve (11), double pawl measurements
Pawl (3) is set to the one end of the scale casing (12) close to the monodactyle measuring claw (2), and the two is oppositely arranged；Or it is described double
Pawl measuring claw (3) is set to one end of the screw sleeve (11), and the monodactyle measuring claw (2) is set to the scale casing
(12) close to one end of double pawl measuring claws (3), the two is oppositely arranged；
The monodactyle measuring claw (2) includes the first measuring jaw (21), and first measuring jaw (21) is perpendicular to the screw sleeve (11)；
Double pawl measuring claws (3) include the second measuring jaw (31) and third measuring jaw (32), and second measuring jaw (31) and third are surveyed
Pawl (32) is using the central axis of the screw sleeve (11) as axial symmetry and perpendicular to the screw sleeve (11)；First measuring jaw
(21), the bottom end of the second measuring jaw (31) and third measuring jaw (32) three are in same level, and first measuring jaw (21)
Bottom end is located on the perpendicular bisector of the second measuring jaw (31) and third measuring jaw (32) bottom end line.
2. a kind of three-jaw according to claim 1 surveys slot micrometer, which is characterized in that first measuring jaw (21) and second
Measuring jaw (31), third measuring jaw (32) it is opposite be respectively perpendicular to the screw sleeve (11) on one side.
3. a kind of three-jaw according to claim 1 or 2 surveys slot micrometer, which is characterized in that the monodactyle measuring claw (2) is also
Including the first gauge head (22), it is connected to the bottom end of first measuring jaw (21)；Double pawl measuring claws (3) further include the second survey
Head (33) and third gauge head (34), second gauge head (33) are connected to the bottom end of second measuring jaw (31), and the third is surveyed
Head (34) is set to the bottom end of the third measuring jaw (32).
4. a kind of three-jaw according to claim 3 surveys slot micrometer, which is characterized in that first gauge head (22), second
Gauge head (33) and the opposite one side of third gauge head (34) respectively with the first measuring jaw (21), the second measuring jaw (31) and third measuring jaw (32)
Opposite one side is on same vertical plane；The opposite one side of three is respectively cambered surface.
5. a kind of three-jaw according to claim 4 surveys slot micrometer, which is characterized in that the appearance of the screw sleeve (11)
Face is equipped with guide groove (111) and guide spiro rod (112), and one end sliding of the guide spiro rod (112) is connected in the guide groove
(111), one of the other end and the monodactyle measuring claw (2) and double pawl measuring claws (3) are connect.
6. a kind of three-jaw according to claim 5 surveys slot micrometer, which is characterized in that when the monodactyle measuring claw (2) sets
It is placed in the other end of the scale casing (12), double pawl measuring claws (3) are set to the other end of the screw sleeve (11)
When, the monodactyle measuring claw (2) further includes the first fixed cylinder (23), and first fixed cylinder (23) is set to scale casing (12)
The other end；First measuring jaw (21) is set to the bottom of first fixed cylinder (23), and the two is integrally formed；It is described double
Pawl measuring claw (3) further includes the second fixed cylinder (35), and second fixed cylinder (35) is set to the other end of screw sleeve (11)；Institute
It states the second measuring jaw (31) and third measuring jaw (32) is separately connected to the bottom of second fixed cylinder (35) respectively, and three is
It is integrally formed.
7. a kind of three-jaw according to claim 6 surveys slot micrometer, which is characterized in that the top of first fixed cylinder (23)
Portion is equipped with the first fixation hole (231)；The other end of the guide spiro rod (112) is bolted in first fixation hole (231).
8. a kind of three-jaw according to claim 5 surveys slot micrometer, which is characterized in that when the monodactyle measuring claw (2) sets
It is placed in the other end of the screw sleeve (11), double pawl measuring claws (3) are set to the other end of the scale casing (12)
When, the monodactyle measuring claw (2) further includes the first fixed cylinder (23), and first fixed cylinder (23) is set to screw sleeve (11)
The other end；First measuring jaw (21) is set to the bottom of first fixed cylinder (23), and the two is integrally formed；It is described double
Pawl measuring claw (3) further includes the second fixed cylinder (35), and second fixed cylinder (35) is set to the other end of scale casing (12)；Institute
It states the second measuring jaw (31) and third measuring jaw (32) is separately connected to the bottom of second fixed cylinder (35) respectively, and three is
It is integrally formed.
9. a kind of three-jaw according to claim 8 surveys slot micrometer, which is characterized in that the top of second fixed cylinder (35)
Portion is equipped with the second fixation hole (351)；The other end of the guide spiro rod (112) is bolted in second fixation hole (351).
10. a kind of three-jaw survey slot micrometer according to claim 7 or 9, which is characterized in that the micrometer matrix (1)
Mechanically to survey slot micrometer or being that electronic digital display surveys slot micrometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820948797.1U CN208505145U (en) | 2018-06-20 | 2018-06-20 | A kind of three-jaw survey slot micrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820948797.1U CN208505145U (en) | 2018-06-20 | 2018-06-20 | A kind of three-jaw survey slot micrometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208505145U true CN208505145U (en) | 2019-02-15 |
Family
ID=65286588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820948797.1U Active CN208505145U (en) | 2018-06-20 | 2018-06-20 | A kind of three-jaw survey slot micrometer |
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| Country | Link |
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| CN (1) | CN208505145U (en) |
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2018
- 2018-06-20 CN CN201820948797.1U patent/CN208505145U/en active Active
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