CN210486771U - Coaxiality gauge - Google Patents
Coaxiality gauge Download PDFInfo
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- CN210486771U CN210486771U CN201921337933.4U CN201921337933U CN210486771U CN 210486771 U CN210486771 U CN 210486771U CN 201921337933 U CN201921337933 U CN 201921337933U CN 210486771 U CN210486771 U CN 210486771U
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- bottom plate
- detection sleeve
- reference pin
- pressure spring
- circumferential surface
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Abstract
The utility model discloses a coaxiality gauge, which comprises a detection sleeve, wherein the detection sleeve is tubular with a hollow cavity, a bottom plate is fixed at one end of the detection sleeve, and the outer surface of the detection sleeve comprises a plurality of circumferential surfaces with different thicknesses; the reference pin is positioned in the hollow cavity of the detection sleeve and protrudes out of one end of the detection sleeve, which is far away from the bottom plate, an annular groove is formed between the reference pin and the detection sleeve, and the opening direction of the annular groove is along the direction far away from the bottom plate; the pressure spring is arranged in the hollow cavity of the detection sleeve, two ends of the pressure spring are respectively contacted with the bottom plate and the reference pin, and the reference pin has linear reciprocating freedom degree along the axial direction of the detection sleeve; the vertical rod is assembled with the bottom plate and penetrates into the pressure spring; the detection sleeve, the reference pin, the pressure spring, the upright rod and the annular groove are coaxially arranged. Adopt this utility model discloses be convenient for detect coaxial not hole of footpath, circle shape part, convenient operation, the application is wide.
Description
Technical Field
The utility model relates to an examine the utensil field, concretely relates to utensil is examined to axiality.
Background
The small-sized spokes and the wheel axle are not generally integral parts and are generally assembled and formed by independent parts. After assembly, the coaxiality of the assembled parts is generally ensured, so that the rotation stability is high. The existing method of generally adopting a straight ruler to choose a plurality of radial direction measuring radiuses has low accuracy and low efficiency.
SUMMERY OF THE UTILITY MODEL
The to-be-solved problem of the utility model is to provide an utensil is examined to axiality.
In order to solve the above problem, the utility model provides an utensil is examined to axiality, for reaching above-mentioned purpose, the utility model provides a technical scheme that its technical problem adopted is:
a coaxiality gauge comprising: the detection sleeve is in a tubular shape with a hollow cavity, a bottom plate is fixed at one end of the detection sleeve, and the outer surface of the detection sleeve comprises a plurality of circumferential surfaces with different thicknesses; the reference pin is positioned in the hollow cavity of the detection sleeve and protrudes out of one end of the detection sleeve, which is far away from the bottom plate, an annular groove is formed between the reference pin and the detection sleeve, and the opening direction of the annular groove is along the direction far away from the bottom plate; the pressure spring is arranged in the hollow cavity of the detection sleeve, two ends of the pressure spring are respectively contacted with the bottom plate and the reference pin, and the reference pin has linear reciprocating freedom degree along the axial direction of the detection sleeve; the vertical rod is assembled with the bottom plate and penetrates into the pressure spring; the detection sleeve, the reference pin, the pressure spring, the upright rod and the annular groove are coaxially arranged.
The beneficial effect of adopting above-mentioned technical scheme is: the annular groove can detect the size precision of circle shape part, if can block into the annular groove and not lead to the shrinkage of benchmark round pin, then explain that the size is accurate, and the outer lane that detects the inner circle of cover can detect circle shape part, and the inner circle that can detect circle shape part is sold to the outer lane of benchmark. Detect the size precision that cover, basic round pin's collocation not only can detect single circle shape part, foraminiferous hole part simultaneously, can be equipped with coaxial not isodiametric hole to some parts, through sheatheeing in the interval, the macropore contacts with the outer lane that detects the cover, and the outer lane contact of aperture and basic round pin if the part can not appear the condition of pinning the compression with the basic round pin, then explains that coaxial hole is the processing is accurate on this part. The pressure spring can guarantee that the benchmark round pin can kick-back at every turn, prepares for next detection, and the elasticity of benchmark round pin guarantees simultaneously that the in-process that detects can not harm the part that is detected.
As a further improvement, the one end that the reference pin contacted with the pressure spring possesses the radially enlarged flange, and the one end that the well cavity that detects the cover deviates from the bottom plate possesses the restriction flange along the tang circle that deviates from bottom plate rectilinear direction.
The beneficial effect of adopting above-mentioned technical scheme is: the stop ring and the flange can define the extreme position of the reference pin, define the maximum height of the reference pin and prevent the reference pin from being disengaged from the detection sleeve.
As a further improvement of the present invention, the diameter of the reference pin except the flange is equal to the diameter of the spigot ring.
The beneficial effect of adopting above-mentioned technical scheme is: the reference pin is tightly matched with the spigot ring in the radial direction, and no gap exists, so that the shaft end of the reference pin and the detection sleeve are coaxial.
As the utility model discloses a still further improve, the surface of detecting the cover includes first periphery, second periphery, and the distance of second periphery apart from the bottom plate is shorter than the distance of first periphery apart from the bottom plate, and the diameter of first periphery is less than the diameter of second periphery, passes through the circular cone section transition between first periphery, the second periphery.
The beneficial effect of adopting above-mentioned technical scheme is: the first circumferential surface and the second circumferential surface can correspondingly detect the inner ring accuracy of two products, and the conical sections play a transition role, so that the products can be conveniently sleeved with the detection tool.
As the utility model discloses a further improvement again, the pole setting includes coaxial fixed first cylinder section, second cylinder section, and the diameter of first cylinder section is greater than the diameter of second cylinder section, possesses the through-hole that supplies the assembly of second cylinder section on the bottom plate, and the pressure spring cover is outside first cylinder section, and the axial length of second cylinder section is greater than the end plate thickness, detects the axial length of cover and end plate thickness and the axial length who is less than basic round pin, pole setting and.
The beneficial effect of adopting above-mentioned technical scheme is: in case the reference pin can not be ejected out in the jammed state in the compressed state, the reference pin can be ejected continuously through the ejection of the vertical rod, and the length of the second cylindrical section can be enough to ensure that the reference pin can be ejected out of one end of the detection sleeve.
As the utility model discloses a further improvement again, the bottom plate possesses the convex pad foot of a plurality of deviating from the fixed one side of detection cover, and the line constitutes the polygon in proper order between the adjacent pad foot, and the self axis of detecting the cover passes polygonal centroid.
The beneficial effect of adopting above-mentioned technical scheme is: the foot pads play a supporting role, and the layout of the detection sleeve enables the stress of each foot pad to be relatively even when the foot pads are pressed.
As a further improvement of the utility model, the cross section profile of any part of the ring groove is shaped like a U with the height of 2mm and the width of 4 mm. U is a Chinese character and is similar to Kan in ancient times.
The beneficial effect of adopting above-mentioned technical scheme is: the size of the annular groove is suitable for detecting the shape accuracy of the annular ring part produced on site.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a top view of an embodiment of the present invention;
FIG. 2 is a bottom view of an embodiment of the present invention;
fig. 3 is a cross-sectional view a-a of an embodiment of the present invention.
1-a bottom plate; 2-a reference pin; 2 a-a flange; 3-detecting the sleeve; 3 a-a first circumferential surface; 3 b-a second circumferential surface; 3 c-a conical section; 4-pressure spring; 5-erecting a rod; 5 a-a first cylindrical section; 5 b-a second cylindrical section; 6-foot pad; 7-a screw; 8-ring groove.
Detailed Description
The following detailed description is made in conjunction with specific embodiments of the present invention:
in order to reach the utility model discloses a purpose, utensil is examined to axiality includes: the detection sleeve 3 is in a tubular shape with a hollow cavity, a bottom plate 1 is fixed at one end of the detection sleeve 3, and the outer surface of the detection sleeve 3 comprises a plurality of circumferential surfaces with different thicknesses; the reference pin 2 is positioned in the hollow cavity of the detection sleeve 3 and protrudes out of one end, deviating from the bottom plate 1, of the detection sleeve 3, an annular groove 8 is formed between the reference pin 2 and the detection sleeve 3, and the opening direction of the annular groove 8 deviates from the bottom plate 1; the pressure spring 4 is arranged in a hollow cavity of the detection sleeve 3, two ends of the pressure spring 4 are respectively contacted with the bottom plate 1 and the reference pin 2, and the reference pin 2 has a linear reciprocating freedom degree along the axial direction of the detection sleeve 3; the upright rod 5 is assembled with the bottom plate 1, and the upright rod 5 penetrates into the pressure spring 4; the detection sleeve 3, the reference pin 2, the pressure spring 4, the upright rod 5 and the annular groove 8 are coaxially arranged.
The beneficial effect of adopting above-mentioned technical scheme is: the annular groove can detect the size precision of circle shape part, if can block into the annular groove and not lead to the shrinkage of benchmark round pin, then explain that the size is accurate, and the outer lane that detects the inner circle of cover can detect circle shape part, and the inner circle that can detect circle shape part is sold to the outer lane of benchmark. Detect the size precision that cover, basic round pin's collocation not only can detect single circle shape part, foraminiferous hole part simultaneously, can be equipped with coaxial not isodiametric hole to some parts, through sheatheeing in the interval, the macropore contacts with the outer lane that detects the cover, and the outer lane contact of aperture and basic round pin if the part can not appear the condition of pinning the compression with the basic round pin, then explains that coaxial hole is the processing is accurate on this part. The pressure spring can guarantee that the benchmark round pin can kick-back at every turn, prepares for next detection, and the elasticity of benchmark round pin guarantees simultaneously that the in-process that detects can not harm the part that is detected.
In other embodiments of the utility model, the one end that reference pin 2 and pressure spring 4 contacted possesses radially enlarged flange 2a, and the one end that the cavity that detects cover 3 deviates from bottom plate 1 possesses the tang circle that the restriction flange deviates from 1 rectilinear direction of bottom plate along 2 a.
The beneficial effect of adopting above-mentioned technical scheme is: the stop ring and the flange can define the extreme position of the reference pin, define the maximum height of the reference pin and prevent the reference pin from being disengaged from the detection sleeve.
In other embodiments of the invention, the diameter of the reference pin 2, excluding the flange 2a, is equal to the diameter of the stop ring.
The beneficial effect of adopting above-mentioned technical scheme is: the reference pin is tightly matched with the spigot ring in the radial direction, and no gap exists, so that the shaft end of the reference pin and the detection sleeve are coaxial.
In other embodiments of the present invention, the outer surface of the detecting sleeve 3 includes a first circumferential surface 3a and a second circumferential surface 3b, the distance from the second circumferential surface 3b to the bottom plate 1 is shorter than the distance from the first circumferential surface 3a to the bottom plate 1, the diameter of the first circumferential surface 3a is smaller than that of the second circumferential surface 3b, and the first circumferential surface 3a and the second circumferential surface 3b are transited by a conical section 3 c.
The beneficial effect of adopting above-mentioned technical scheme is: the first circumferential surface and the second circumferential surface can correspondingly detect the inner ring accuracy of two products, and the conical sections play a transition role, so that the products can be conveniently sleeved with the detection tool.
The utility model discloses an in other embodiments, pole setting 5 includes coaxial fixed first cylinder section 5a, second cylinder section 5b, the diameter of first cylinder section 5a is greater than the diameter of second cylinder section 5b, possess the through-hole that supplies second cylinder section 5b assembly on the bottom plate 1, 4 covers of pressure spring are outside first cylinder section 5a, the axial length of second cylinder section 5b is greater than the thickness of bottom plate 1, detect the axial length of cover 3 and the thickness of bottom plate 1 and be less than basic pin 2, the axial length of pole setting 5 and.
At the same time, the axial length of the compression spring 4 in the uncompressed state is greater than the axial length of the first cylindrical section 5 a.
The beneficial effect of adopting above-mentioned technical scheme is: in case the reference pin can not be ejected out in the jammed state in the compressed state, the reference pin can be ejected continuously through the ejection of the vertical rod, and the length of the second cylindrical section can be enough to ensure that the reference pin can be ejected out of one end of the detection sleeve.
In other embodiments of the utility model, bottom plate 1 possesses the convex pad foot 6 of a plurality of deviating from the fixed one side of detection cover 3, and the line constitutes the polygon in proper order between the adjacent pad foot 6, and the self axis that detects cover 3 passes polygonal centroid.
As shown in fig. 3, the foot pad 6 is assembled with the base plate by means of countersunk screws 7.
The beneficial effect of adopting above-mentioned technical scheme is: the foot pads play a supporting role, and the layout of the detection sleeve enables the stress of each foot pad to be relatively even when the foot pads are pressed.
In other embodiments of the present invention, the cross-sectional profile of any part of the annular groove 8 is a U-shape with a height of 2mm and a width of 4 mm. U is a Chinese character and is similar to Kan in ancient times.
The beneficial effect of adopting above-mentioned technical scheme is: the size of the annular groove is suitable for detecting the shape accuracy of the annular ring part produced on site.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (7)
1. A coaxiality gauge is characterized by comprising:
the detection sleeve is in a tubular shape with a hollow cavity, a bottom plate is fixed at one end of the detection sleeve, and the outer surface of the detection sleeve comprises a plurality of circumferential surfaces with different thicknesses;
the reference pin is positioned in the hollow cavity of the detection sleeve and protrudes out of one end of the detection sleeve, which is far away from the bottom plate, an annular groove is formed between the reference pin and the detection sleeve, and the opening direction of the annular groove is along the direction far away from the bottom plate;
the pressure spring is arranged in the hollow cavity of the detection sleeve, two ends of the pressure spring are respectively contacted with the bottom plate and the reference pin, and the reference pin has linear reciprocating freedom degree along the axial direction of the detection sleeve;
the vertical rod is assembled with the bottom plate and penetrates into the pressure spring;
the detection sleeve, the reference pin, the pressure spring, the upright rod and the annular groove are coaxially arranged.
2. The coaxiality gauge according to claim 1, wherein: one end of the reference pin, which is in contact with the pressure spring, is provided with a flange which is expanded in the radial direction, and one end, which is far away from the bottom plate, of the hollow cavity of the detection sleeve is provided with a stop ring which limits the flange to deviate from the linear direction of the bottom plate.
3. The coaxiality gauge according to claim 2, wherein: the diameter of the datum pin except the flange is equal to the diameter of the stop ring.
4. The coaxiality gauge according to claim 1, wherein: the outer surface of the detection sleeve comprises a first circumferential surface and a second circumferential surface, the distance from the second circumferential surface to the bottom plate is shorter than the distance from the first circumferential surface to the bottom plate, the diameter of the first circumferential surface is smaller than that of the second circumferential surface, and the first circumferential surface and the second circumferential surface are transited through a conical section.
5. The coaxiality gauge according to claim 1, wherein: the vertical rod comprises a first cylindrical section and a second cylindrical section which are coaxially fixed, the diameter of the first cylindrical section is larger than that of the second cylindrical section, the bottom plate is provided with a through hole for assembling the second cylindrical section, the pressure spring is sleeved outside the first cylindrical section, the axial length of the second cylindrical section is larger than the thickness of the bottom plate, and the sum of the axial length of the detection sleeve and the thickness of the bottom plate is smaller than the sum of the axial lengths of the reference pin and the vertical rod.
6. The coaxiality gauge according to claim 1, wherein: the bottom plate has a plurality of convex pad feet in the fixed one side that deviates from the detection cover, and line in proper order constitutes the polygon between the adjacent pad feet, the centre of gravity of polygon is passed to the self axis of detection cover.
7. The coaxiality gauge according to claim 1, wherein: the cross section profile of any part of the annular groove is in a U shape with the height of 2mm and the width of 4 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921337933.4U CN210486771U (en) | 2019-08-16 | 2019-08-16 | Coaxiality gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921337933.4U CN210486771U (en) | 2019-08-16 | 2019-08-16 | Coaxiality gauge |
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| Publication Number | Publication Date |
|---|---|
| CN210486771U true CN210486771U (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921337933.4U Active CN210486771U (en) | 2019-08-16 | 2019-08-16 | Coaxiality gauge |
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| CN (1) | CN210486771U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319755A (en) * | 2019-08-16 | 2019-10-11 | 锋宏机械制造集团有限公司 | A kind of coaxiality check fixture |
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2019
- 2019-08-16 CN CN201921337933.4U patent/CN210486771U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110319755A (en) * | 2019-08-16 | 2019-10-11 | 锋宏机械制造集团有限公司 | A kind of coaxiality check fixture |
| CN110319755B (en) * | 2019-08-16 | 2024-06-04 | 锋宏机械制造集团有限公司 | Coaxiality gauge |
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