CN110174066B - Checking tool for distance from sharp groove on shaft to shaft end face, machining method and checking method of distance - Google Patents
Checking tool for distance from sharp groove on shaft to shaft end face, machining method and checking method of distance Download PDFInfo
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- CN110174066B CN110174066B CN201910324327.7A CN201910324327A CN110174066B CN 110174066 B CN110174066 B CN 110174066B CN 201910324327 A CN201910324327 A CN 201910324327A CN 110174066 B CN110174066 B CN 110174066B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
Abstract
The invention belongs to the machining technology, provides a checking fixture for the distance from a sharp groove on a shaft to the end face of the shaft, a machining method and a checking method thereof, and solves the problems of difficult measurement and inaccurate measurement data of the conventional method for detecting the position of a sharp arc groove. The checking fixture comprises a circular first body and two detection slips which are positioned above the circular first body and are arranged in an axisymmetric manner; the annular first body and the two detection slips are processed according to the following steps: 1, processing a circular first body and a circular second body; the upper edge of the circular second body is contracted inwards to form a sharp-blade convex ring; the inner diameter D1 of the circular ring-shaped first body, the inner diameter D2 of the circular ring-shaped second body, the inner diameter D3 of the sharp-blade-shaped convex ring and the outer diameter D0 of the detected shaft part satisfy the following relations: d0< D3< D1< D2; processing a through groove on the annular second body along the radial direction to form two axisymmetric tile structures; and 3, respectively processing the upper end surfaces of the two tile structures to form two detection slips.
Description
Technical Field
The invention belongs to the machining technology, and particularly relates to a checking fixture for the distance from a sharp groove on a shaft to the end face of the shaft, a machining method and a checking method thereof.
Background
The gear box is arranged on a bottom power bogie of the vehicle and is arranged on an axle of the vehicle, when the vehicle runs, the gear box directly bears the impact of a rail on a wheel pair, and the gear box is a key part of the vehicle and has reliability which directly influences the running safety of the vehicle. The auxiliary box driving gear is one of main parts of the linkage of the main box and the auxiliary box of the gear box and is a necessary part for realizing power transmission, so the performance of the auxiliary box driving gear directly influences the running state of a vehicle.
The utility model provides an auxiliary box drive gear adopts axial structural style, as shown in fig. 1 and 2, in order to satisfy the axial positioning needs of bearing, sharp circular arc groove 01 has been seted up along the circumferencial direction on this auxiliary box drive gear surface, in actual operation, whether the position that needs to detect sharp circular arc groove and set up meets the requirements, adopt usually to measure the axial distance of sharp groove to being surveyed axle terminal surface B, A size in the picture promptly, because the groove depth of sharp circular arc groove is very shallow, the measuring head of current various standard dipperstick can not get into this groove, brought the difficulty for measuring.
The clamping plate in the traditional sense has warpage due to the small contact area of the measured part, so that the measured data is inaccurate.
Disclosure of Invention
The invention provides a checking fixture for the distance from a tip groove on a shaft to a shaft end face, a machining method and a checking method thereof, and aims to solve the problems that the existing method for detecting the position of the tip arc groove is difficult to measure and inaccurate in measured data.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the utility model provides an epaxial tongue groove is to examining utensil of axle terminal surface distance which characterized in that: the device comprises a circular first body and two axisymmetric detection slips which are coaxially connected with the circular first body and are positioned above the circular first body; the annular first body and the two detection slips are processed according to the following steps:
1, processing a circular first body and a circular second body by using a bar material or a pipe material; the upper edge of the circular second body is contracted inwards to form a sharp-blade-shaped convex ring; the inner diameter D1 of the circular ring-shaped first body, the inner diameter D2 of the circular ring-shaped second body, the inner diameter D3 of the sharp-blade-shaped convex ring and the outer diameter D0 of the detected shaft part satisfy the following relations:
D0<D3<D1<D2；
processing a through groove on the annular second body along the radial direction to form two axisymmetric tile structures;
respectively processing the upper end surfaces of the two tile structures to form two detection slips, namely a first detection slip and a second detection slip;
wherein the distance DT of first detection slips up end to the lower terminal surface of the first body of ring shape, the unit is mm, satisfies following formula:
0≤DT-A1≤0.012；
wherein A1 is the lower difference of the detected distance A and the unit is mm;
the distance DZ from the upper end face of the second detection slip to the lower end face of the annular first body is in mm, and the following formula is satisfied:
0≤A2-DZ≤0.008；
wherein, A2 is the difference of the detected distance A and the unit is mm.
Further, in the step 3, the distance DT from the upper end surface of the first detection slip to the lower end surface of the annular first body is 0.012mm larger than the lower difference of the detected distance A; the distance DZ from the upper end face of the second detection slip to the lower end face of the annular first body is 0.008mm smaller than the detected distance A.
Further, in the step 1, the head of the sharp-edge-shaped convex ring is in a sheet shape, and the thickness of the sheet-shaped section is 1 mm.
Further, in step 1, the circular second body and the circular first body are in smooth transition.
Further, in step 3, the upper end surfaces of the two tile structures are respectively ground to form two detection slips.
Meanwhile, the invention provides a method for processing a gauge for measuring the distance from a tip groove on a shaft to a shaft end surface, which is characterized in that: the method comprises the following steps:
1, processing a circular first body and a circular second body by using a bar material or a pipe material; the upper edge of the circular second body is contracted inwards to form a sharp-blade-shaped convex ring; the inner diameter D1 of the circular ring-shaped first body, the inner diameter D2 of the circular ring-shaped second body, the inner diameter D3 of the sharp-blade-shaped convex ring and the outer diameter D0 of the detected shaft part satisfy the following relations:
D0<D3<D1<D2；
processing a through groove on the annular second body along the radial direction to form two axisymmetric tile structures;
respectively processing the upper end surfaces of the two tile structures to form two detection slips, namely a first detection slip and a second detection slip;
wherein the distance DT of first detection slips up end to the lower terminal surface of the first body of ring shape, the unit is mm, satisfies following formula:
0≤DT-A1≤0.012；
wherein A1 is the lower difference of the detected distance A and the unit is mm;
the distance DZ from the upper end face of the second detection slip to the lower end face of the annular first body is in mm, and the following formula is satisfied:
0≤A2-DZ≤0.008；
wherein, A2 is the difference of the detected distance A and the unit is mm.
The invention also provides a method for detecting the distance from the tip groove to the shaft end surface of the shaft by using the gauge for detecting the distance from the tip groove to the shaft end surface of the shaft, which is characterized in that: the method comprises the following steps:
1, sleeving a detection tool from the small end of a detected shaft to enable the lower end face of the annular first body to be attached to the end face of the detected shaft;
moving the checking fixture back and forth along the corresponding direction of the two detection slips, and keeping the lower end surface of the annular first body and the end surface of the detected shaft attached all the time during moving;
3 when observing first detection slips, second detection slips and being surveyed the side contact of axle, whether there is the printing opacity clearance between its sharp sword form bulge loop and being surveyed the axle side:
if the first detection slip is contacted with the side surface of the measured shaft, a light-transmitting gap does not exist between the sharp-edge-shaped convex ring of the first detection slip and the side surface of the measured shaft, namely the sharp-edge-shaped convex ring of the first detection slip extends into the sharp groove of the measured shaft, and when the second detection slip is contacted with the side surface of the measured shaft, a light-transmitting gap exists between the sharp-edge-shaped convex ring of the second detection slip and the side surface of the measured shaft, namely the sharp-edge-shaped convex ring of the second detection slip is contacted with the non-sharp groove position of the side surface of the measured shaft, the axial distance from the sharp groove to the end surface of the measured shaft is tested to be qualified, and other conditions are unqualified.
Compared with the prior art, the invention has the advantages that:
1. the checking fixture is combined by a circular first body and two detection slips which are arranged in an axisymmetric manner, the inner diameter D1 of the first body, the inner diameter D2 of the second body, the inner diameter D3 of a sharp-blade-shaped convex ring and the outer diameter D0 of a detected shaft are limited, the axial distance from a sharp groove to an end surface is checked through the distance from the upper end surface of the two detection slips to the lower end surface of the circular first body and the matching relationship between the two detection slips and the sharp groove, and the checking fixture is high in checking efficiency and good in reliability.
2. According to the detection method, whether a light transmission gap exists between the sharp-edged convex ring of the detection slip and the side surface of the detected shaft is observed, whether the axial distance between the sharp groove of the shaft part and the end surface meets the requirement is judged, the detection tool is moved back and forth along the corresponding direction of the two detection slips, when the first detection slip is contacted with the side surface of the detected shaft, the light transmission gap does not exist between the sharp-edged convex ring of the first detection slip and the side surface of the detected shaft, and when the second detection slip is contacted with the side surface of the detected shaft, the light transmission gap exists between the sharp-edged convex ring of the second detection slip and the side surface of the detected shaft, the axial distance between the sharp groove of the detected shaft and the end surface is qualified, and the other conditions are unqualified.
Drawings
FIG. 1 is a schematic view of the structure of a sub-tank drive gear;
FIG. 2 is an enlarged view at Z in FIG. 1;
in fig. 1 and 2, the reference numerals are as follows: 01-sharp arc groove and B-end surface of measured shaft.
FIG. 3 is a schematic structural view of a gauge of the present invention;
FIG. 4 is a top view of FIG. 3;
FIG. 5 is an assembly view of the inspection device of the present invention and a part of a shaft to be inspected;
FIG. 6 is an enlarged view of a portion of FIG. 5 at I;
fig. 7 is a partial enlarged view of fig. 5 at point ii.
In fig. 3 to 7, the reference numerals are as follows:
1-a circular ring-shaped first body, 21-a first detection slip and 22-a second detection slip.
Detailed Description
The invention is described in further detail below with reference to the figures and the examples.
As shown in fig. 3 and 4, the checking fixture for the distance from the tip groove on the shaft to the end surface of the shaft comprises a circular first body 1 and two axisymmetrically arranged detection slips which are coaxially connected with the circular first body 1 and are positioned above the circular first body 1; the annular first body 1 and the two detection slips are processed according to the following steps:
1, processing a circular first body 1 and a circular second body by using a bar material or a pipe material; the upper edge of the circular second body is inwards contracted to form a sharp-edge-shaped convex ring, the head of the sharp-edge-shaped convex ring is flaky, and the thickness of the flaky section is 1 mm; the inner diameter D1 of the circular ring-shaped first body 1, the inner diameter D2 of the circular ring-shaped second body, the inner diameter D3 of the sharp-blade-shaped convex ring and the outer diameter D0 of the detected shaft part satisfy the following relations:
D0<D3<D1<D2；
processing a through groove on the annular second body along the radial direction to form two axisymmetric tile structures;
respectively processing the upper end surfaces of the two tile structures to form two detection slips, namely a first detection slip 21 and a second detection slip 22; wherein the distance DT from the upper end surface of the first detection slip 21 to the lower end surface of the annular first body 1 is 0-0.012 greater than the lower difference (A1) of the detected distance A, and the unit is mm;
the distance DZ from the upper end face of the second detection slip 22 to the lower end face of the annular first body 1 is 0-0.008 mm smaller than the detected distance A (A2).
In step 3 of this embodiment, the distance DT from the upper end surface of the first detection slip 21 to the lower end surface of the annular first body 1 is 0.012mm larger than the detected distance a; the distance DZ from the upper end surface of the second detection slip 22 to the lower end surface of the annular first body 1 is 0.008mm smaller than the detected distance A.
The circular ring-shaped second body and the circular ring-shaped first body are in smooth transition.
The embodiment provides a method for processing the gauge for measuring the distance from the tip groove to the end surface of the shaft, which comprises the following steps:
1, processing a circular first body 1 and a circular second body by using a bar material or a pipe material; the upper edge of the circular second body is contracted inwards to form a sharp-blade-shaped convex ring; the inner diameter D1 of the circular ring-shaped first body 1, the inner diameter D2 of the circular ring-shaped second body, the inner diameter D3 of the sharp-blade-shaped convex ring and the outer diameter D0 of the detected shaft part satisfy the following relations:
D0<D3<D1<D2；
processing a through groove on the annular second body along the radial direction to form two axisymmetric tile structures;
respectively processing the upper end surfaces of the two tile structures to form two detection slips, namely a first detection slip 21 and a second detection slip 22;
wherein the distance DT from the upper end surface of the first detection slip 21 to the lower end surface of the annular first body 1 in mm satisfies the following formula:
0≤DT-A1≤0.012；
wherein A1 is the lower difference of the detected distance A and the unit is mm;
the distance DZ from the upper end face of the second detection slip 22 to the lower end face of the annular first body 1 is in mm, and the following formula is satisfied:
0≤A2-DZ≤0.008；
wherein, A2 is the difference of the detected distance A and the unit is mm.
As shown in fig. 5 to 7, meanwhile, the present embodiment also provides a method for checking a distance from a tip groove on a shaft to a shaft end surface by using the checking fixture for a distance from a tip groove on a shaft to a shaft end surface, including the following steps:
1, sleeving a detection tool from the small end of a detected shaft to enable the lower end face of the annular first body 1 to be attached to the end face B of the detected shaft;
moving the checking fixture back and forth along the corresponding direction of the two detection slips, and keeping the lower end face of the annular first body 1 and the end face B of the detected shaft attached all the time during moving;
3, when observing first detection slips 21, second detection slips 22 and being surveyed the side contact of axle, whether there is the light transmission clearance between its sharp sword form bulge loop and the axle side of being surveyed:
if the first detection slip 21 is in contact with the side surface of the measured shaft, a light-transmitting gap does not exist between the pointed edge-shaped convex ring of the first detection slip 21 and the side surface of the measured shaft, namely the pointed edge-shaped convex ring of the first detection slip extends into the pointed groove of the measured shaft, and when the second detection slip 22 is in contact with the side surface of the measured shaft, a light-transmitting gap exists between the pointed edge-shaped convex ring of the second detection slip 22 and the side surface of the measured shaft, namely the pointed edge-shaped convex ring of the second detection slip is in non-pointed groove position contact with the side surface of the measured shaft (in order to extend into the pointed groove of the measured shaft), the axial distance from the pointed groove of the measured shaft to the end surface is tested to be qualified, and the other conditions are not qualified.
In the inspection method of the embodiment, the distance DT from the upper end surface of the first inspection slip 21 to the lower end surface of the annular first body 1 is slightly greater than the lower difference of the inspected distance a, which may be called a pass end; the distance DZ from the upper end face of the second detection slip 22 to the lower end face of the annular first body 1 is slightly smaller than the upper difference of the detected distance a, which can be called a stopping end, and in the detection process, the through end passes through (the through end can extend into the tip groove), the stopping end stops (the stopping end can not extend into the tip groove), namely, the tip groove position of the detected part is qualified, otherwise, the position is not qualified.
The above description is only for the purpose of describing the preferred embodiments of the present invention and does not limit the technical solutions of the present invention, and any known modifications made by those skilled in the art based on the main technical concepts of the present invention fall within the technical scope of the present invention.
Claims (6)
1. The last tongue of axle is to examining utensil of axle end face distance, its characterized in that:
the device comprises a circular first body (1) and two axisymmetric detection slips which are coaxially connected with the circular first body (1) and are positioned above the circular first body (1);
the ring-shaped first body (1) and the two detection slips are processed according to the following steps:
1, processing a circular first body (1) and a circular second body by using a bar material or a pipe material; the upper edge of the circular second body is inwards contracted to form a sharp-edge-shaped convex ring, the head of the sharp-edge-shaped convex ring is flaky, and the thickness of the flaky section is 1 mm; the inner diameter D1 of the circular ring-shaped first body (1), the inner diameter D2 of the circular ring-shaped second body, the inner diameter D3 of the sharp-blade-shaped convex ring and the outer diameter D0 of the detected shaft part satisfy the following relations:
D0<D3<D1<D2；
processing a through groove on the annular second body along the radial direction to form two axisymmetric tile structures;
respectively processing the upper end surfaces of the two tile structures to form two detection slips, namely a first detection slip (21) and a second detection slip (22);
wherein, the distance DT from the upper end surface of the first detection slip (21) to the lower end surface of the annular first body (1) is in mm, and the following formula is satisfied:
0≤DT-A1≤0.012；
wherein A1 is the lower difference of the detected distance A and the unit is mm;
the distance DZ from the upper end face of the second detection slip (22) to the lower end face of the annular first body (1) is in mm, and the following formula is satisfied:
0≤A2-DZ≤0.008；
wherein, A2 is the difference of the detected distance A and the unit is mm.
2. The tool for detecting the distance from the tip groove to the end face of the shaft as claimed in claim 1, wherein: in the step 3, the distance DT from the upper end face of the first detection slip (21) to the lower end face of the annular first body (1) is 0.012mm larger than the detected distance A;
the distance DZ from the upper end face of the second detection slip (22) to the lower end face of the annular first body (1) is 0.008mm smaller than the detected distance A.
3. The tool for detecting the distance from the tip groove to the end face of the shaft as claimed in claim 2, wherein: in step 1, the circular second body and the circular first body are in smooth transition.
4. The tool for detecting the distance from the tip groove to the end face of the shaft as claimed in claim 3, wherein: and 3, respectively processing the upper end surfaces of the two tile structures by adopting a grinding mill to form two detection slips.
5. The machining method of the gauge for the distance from the tip groove on the shaft to the end surface of the shaft is characterized in that: the method comprises the following steps:
1, processing a circular first body (1) and a circular second body by using a bar material or a pipe material; the upper edge of the circular second body is contracted inwards to form a sharp-blade-shaped convex ring; the inner diameter D1 of the circular ring-shaped first body (1), the inner diameter D2 of the circular ring-shaped second body, the inner diameter D3 of the sharp-blade-shaped convex ring and the outer diameter D0 of the detected shaft part satisfy the following relations:
D0<D3<D1<D2；
processing a through groove on the annular second body along the radial direction to form two axisymmetric tile structures;
respectively processing the upper end surfaces of the two tile structures to form two detection slips, namely a first detection slip (21) and a second detection slip (22);
wherein, the distance DT from the upper end surface of the first detection slip (21) to the lower end surface of the annular first body (1) is in mm, and the following formula is satisfied:
0≤DT-A1≤0.012；
wherein A1 is the lower difference of the detected distance A and the unit is mm;
the distance DZ from the upper end face of the second detection slip (22) to the lower end face of the annular first body (1) is in mm, and the following formula is satisfied:
0≤A2-DZ≤0.008；
wherein, A2 is the difference of the detected distance A and the unit is mm.
6. The method for checking the distance from the tip groove on the shaft to the shaft end face by using the checking fixture for the distance from the tip groove on the shaft to the shaft end face as claimed in claim 1, 2, 3 or 4, wherein: the method comprises the following steps:
1, sleeving a detection tool from the small end of a detected shaft to enable the lower end face of the annular first body (1) to be attached to the end face (B) of the detected shaft;
moving the checking fixture back and forth along the corresponding direction of the two detection slips, and keeping the lower end face of the annular first body (1) and the end face (B) of the shaft to be detected attached all the time during moving;
3, observing whether a light transmission gap exists between the sharp-edge-shaped convex ring and the side surface of the detected shaft when the first detection slip (21) and the second detection slip (22) are contacted with the side surface of the detected shaft:
if the first detection slip (21) is in contact with the side face of the measured shaft, no light-transmitting gap exists between the pointed-edge-shaped convex ring of the first detection slip (21) and the side face of the measured shaft, and when the second detection slip (22) is in contact with the side face of the measured shaft, a light-transmitting gap exists between the pointed-edge-shaped convex ring of the second detection slip (22) and the side face of the measured shaft, the axial distance from the pointed groove of the measured shaft to the end face is tested to be qualified, and the rest conditions are unqualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910324327.7A CN110174066B (en) | 2019-04-22 | 2019-04-22 | Checking tool for distance from sharp groove on shaft to shaft end face, machining method and checking method of distance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910324327.7A CN110174066B (en) | 2019-04-22 | 2019-04-22 | Checking tool for distance from sharp groove on shaft to shaft end face, machining method and checking method of distance |
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| CN110174066A CN110174066A (en) | 2019-08-27 |
| CN110174066B true CN110174066B (en) | 2021-06-22 |
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| CN110174066A (en) | 2019-08-27 |
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