CN219914266U - Taper orifice large end diameter gauge - Google Patents
Taper orifice large end diameter gauge Download PDFInfo
- Publication number
- CN219914266U CN219914266U CN202321220927.7U CN202321220927U CN219914266U CN 219914266 U CN219914266 U CN 219914266U CN 202321220927 U CN202321220927 U CN 202321220927U CN 219914266 U CN219914266 U CN 219914266U
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- diameter
- conical surface
- large end
- taper
- measuring
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- 238000001514 detection method Methods 0.000 claims abstract description 15
- 238000004441 surface measurement Methods 0.000 claims 4
- 230000000007 visual effect Effects 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 description 5
- 238000003754 machining Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
Abstract
The utility model discloses a taper hole large end diameter gauge which comprises a taper measuring part, a grinding wheel over-travel groove part and a centering guide part, wherein the taper measuring part is attached to a taper of a measured workpiece, the upper part of the taper measuring part is a large end face, the diameter of the large end face is the upper difference of the diameter of the large end of the taper of the measured workpiece, a detection groove is formed in the large end face, the intersecting contour diameter of the groove bottom of the detection groove and the measuring taper is the lower difference of the diameter of the large end of the taper of the measured workpiece, the centering guide part is in clearance fit with a cylindrical hole of the taper of the measured workpiece, the end face of the hole of the large end diameter of the taper of the measured workpiece, the large end face and the bottom end face of a notch of the detection groove are scratched through a scratch, and whether the diameter of the large end of the taper of the measured workpiece is between the upper limit and the lower limit of the allowable specification of the workpiece is more accurate than the visual determination of a vernier caliper which is usually adopted, and erroneous determination is difficult to happen.
Description
Technical Field
The utility model relates to the field of machining, in particular to a taper orifice large-end diameter gauge.
Background
In the machining field, aiming at the detection of the diameter of the large end of the middle-precision taper orifice, the detection of the vernier caliper is widely used, the result can be measured only after the claw tip of the vernier caliper is tangent to the maximum circular contour line of the diameter of the large end of the taper orifice during the detection, and the error in the visual comparison in the measurement process is larger, so that the measurement result is different from person to person, larger in access and higher in misjudgment rate. If the image measuring instrument is used for detecting the diameter of the large end of the taper orifice, the instrument is large in size and high in environmental temperature requirement, and the angle of the workpiece is required to be adjusted to ensure that the diameter of the large end of the taper orifice is perpendicular to the projection direction of the image projector, the real result can be measured, so that the device is not suitable for being used in a workshop on site.
Disclosure of Invention
Aiming at the defects and shortcomings of the prior art, the utility model provides the large-end diameter gauge for the taper orifice, which has the advantages of simple and reasonable structure, convenient operation, small error and high accuracy.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model discloses a large-end diameter gauge for a taper hole, which comprises a conical surface measuring part, a grinding wheel over-travel groove part and a centering guide part, wherein the conical surface measuring part is attached to a conical surface of a measured workpiece, the upper part of the conical surface measuring part is a large end surface, the diameter of the large end surface is the upper difference of the diameter of the large end of the conical surface of the measured workpiece, a detecting groove is formed in the large end surface, the intersecting contour diameter of the groove bottom of the detecting groove and the measuring conical surface is the lower difference of the diameter of the large end of the conical surface of the measured workpiece, the centering guide part is in clearance fit with a cylindrical hole of the conical surface of the measured workpiece, and the grinding wheel over-travel groove part is positioned between the conical surface measuring part and the centering guide part.
Further, the centering guide part is cylindrical and coaxial with the cylindrical hole of the conical surface of the measured workpiece.
Further, one end of the centering guide part, which is far away from the conical surface measuring part, is provided with a guide conical surface.
Further, the cone measuring part is conical.
Further, the taper angle of the taper surface measuring section is larger than the taper angle of the taper surface of the workpiece.
Further, the grinding wheel over-travel groove part is a rectangular annular groove.
The large-end diameter gauge for the taper hole has the beneficial effects that the large-end diameter gauge for the taper hole is used for judging whether the large-end diameter of the taper surface of the workpiece to be measured is between the upper limit and the lower limit of the allowable specification of the workpiece through touching by scratching the hole end face, the large end face and the bottom end face of the notch of the detection groove of the workpiece through the scratch mark, so that whether the large-end diameter of the taper surface of the workpiece is qualified is detected, and compared with the conventional vernier caliper, the visual judgment is more accurate and is not easy to be misjudged.
Drawings
FIG. 1 is a schematic view of the structure of the present utility model at a first viewing angle;
FIG. 2 is a schematic view of the structure of the present utility model at a second viewing angle;
fig. 3 is a schematic view of the structure of the present utility model at a third viewing angle.
In fig. 1-3: 1. a cone measuring section; 2. grinding the over-travel groove part of the grinding wheel; 3. a centering guide; 4. a large end face; 5. a detection groove; 6. a guide conical surface; 7. rectangular ring groove.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
The large end diameter gauge for the taper hole shown in fig. 1-3 comprises a conical surface measuring part 1, a grinding wheel over-travel groove part 2 and a centering guide part 3, wherein the conical surface measuring part 1 is attached to a conical surface of a measured workpiece, the upper part of the conical surface measuring part 1 is a large end surface 4, the diameter of the large end surface 4 is the upper difference of the large end diameter of the conical surface of the measured workpiece, a detection groove 5 is formed in the large end surface 4, the contour diameter of the intersection of the groove bottom of the detection groove 5 and the measuring conical surface is the lower difference of the large end diameter of the conical surface of the measured workpiece, the centering guide part 3 is in clearance fit with a cylindrical hole of the conical surface of the measured workpiece, and the grinding wheel over-travel groove part 2 is positioned between the conical surface measuring part 1 and the centering guide part 3.
The upper and lower differences of the diameter of the conical surface large end of the measured workpiece, namely the upper limit and the lower limit of the diameter of the conical surface large end of the workpiece, are the upper limit and the lower limit of the diameter of the conical surface large end of the workpiece allowed, and when the diameter of the conical surface large end of the measured workpiece is between the upper and lower differences, namely the diameter of the conical surface large end of the measured workpiece is between the upper limit and the lower limit of the specification allowed by the workpiece, the diameter of the conical surface large end of the workpiece can be judged to be qualified.
Preferably, in this embodiment, the centering guide 3 is cylindrical and coaxial with the cylindrical hole of the conical surface of the workpiece to be measured, so as to perform a centering function, so as to ensure that the gauge is coaxial with the conical surface of the workpiece to be measured.
Specifically, the end of the centering guide portion 3 far away from the cone measuring portion 1 is provided with a guiding cone 6 so as to facilitate smooth guiding insertion into a cylindrical hole coaxial with the cone of the workpiece to be measured.
Preferably, in this embodiment, the cone measuring part 1 has a conical shape.
Specifically, the taper angle of the taper surface measuring section 1 is larger than the taper angle of the taper surface of the workpiece, so that the large end surface 4 of the taper surface measuring section 1 of the gauge can be ensured to be in contact with the large end portion of the taper surface of the workpiece.
Preferably, in this embodiment, the grinding wheel over-travel groove 2 is a rectangular ring groove 7, so that the conical surface measuring part 1 and the centering guide part 3 of the gauge can be machined by using a grinding machine.
Specifically, the diameter of the large end of the conical surface of the qualified workpiece to be detected is positioned between the large end surface 4 and the bottom end surface of the notch of the detection groove 5, namely, the diameter of the large end of the conical surface of the workpiece to be detected is positioned between the upper limit and the lower limit of the allowable specification of the workpiece.
The large-end diameter gauge for the taper orifice needs to be matched with a scriber for use, and can be applied to field detection of batch products with medium-precision taper orifice large-end diameters. During measurement operation, the gauge is inserted into a cylindrical hole coaxial with the conical surface of a measured workpiece by the centering guide part 3, so that the center line of the gauge is coaxial with the center line of the conical surface of the measured workpiece during measurement, the conical surface measuring part 1 of the gauge is attached to the conical surface of the measured workpiece, a scriber is used for scribing the hole end face with the large end diameter of the conical surface of the measured workpiece, the large end face 4 and the bottom end face of a notch of the detection groove 5, and whether the large end diameter of the conical surface of the measured workpiece is between the upper limit and the lower limit of the allowable specification of the workpiece is judged by touch, so that whether the large end diameter of the conical surface of the measured workpiece is qualified or not is detected, specifically, the qualified measured workpiece is detected, and when the scriber is scribed through the bottom end face of the detection groove 5 and the large end diameter end face of the conical surface of the measured workpiece is blocked by touch; when the scriber is scribed through the end face with the diameter of the large end of the conical surface and the end face 4 of the large end of the measured workpiece, the scriber is blocked in touch sense; the diameter of the large end of the conical surface of the workpiece to be measured is proved to be between the upper limit and the lower limit of the allowable specification of the workpiece, and the diameter of the large end of the conical surface of the workpiece can be judged to be qualified.
After the measurement operation, the gauge is poured out from the hole of the measured workpiece.
The foregoing description is only of the preferred embodiments of the utility model, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the utility model are therefore intended to be embraced therein.
Claims (6)
1. The utility model provides a rule is examined to tapering drill way large end diameter which characterized in that: including conical surface measurement portion (1), grinding wheel clearance groove portion (2) and centering direction portion (3), conical surface measurement portion (1) is laminated with the conical surface of measured workpiece, and the upper portion of conical surface measurement portion (1) is big terminal surface (4), the diameter of big terminal surface (4) is the upper difference of measured workpiece conical surface big end diameter, has seted up on big terminal surface (4) and has detected groove (5), and the tank bottom of detection groove (5) is the lower difference of measured workpiece conical surface big end diameter with measuring the crossing profile diameter of conical surface, centering direction portion (3) are clearance fit with the cylinder hole of measured workpiece conical surface, grinding wheel clearance groove portion (2) are located between conical surface measurement portion (1) and centering direction portion (3).
2. The gauge for measuring the diameter of the large end of a tapered orifice of claim 1, wherein: the centering guide part (3) is cylindrical and coaxial with the cylindrical hole of the conical surface of the tested workpiece.
3. A taper port large end diameter gauge according to claim 1 or 2, characterized in that: one end of the centering guide part (3) far away from the conical surface measuring part (1) is provided with a guide conical surface (6).
4. The gauge for measuring the diameter of the large end of a tapered orifice of claim 1, wherein: the conical surface measuring part (1) is conical.
5. The gauge for measuring the diameter of the large end of a tapered orifice of claim 4, wherein: the cone angle of the cone measuring part (1) is larger than that of the workpiece cone.
6. The gauge for measuring the diameter of the large end of a tapered orifice of claim 1, wherein: the grinding wheel over-travel groove part (2) is a rectangular annular groove (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321220927.7U CN219914266U (en) | 2023-05-19 | 2023-05-19 | Taper orifice large end diameter gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321220927.7U CN219914266U (en) | 2023-05-19 | 2023-05-19 | Taper orifice large end diameter gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219914266U true CN219914266U (en) | 2023-10-27 |
Family
ID=88435650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321220927.7U Active CN219914266U (en) | 2023-05-19 | 2023-05-19 | Taper orifice large end diameter gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219914266U (en) |
-
2023
- 2023-05-19 CN CN202321220927.7U patent/CN219914266U/en active Active
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