CN211783133U - Bent axle major part chamfer gauge - Google Patents
Bent axle major part chamfer gauge Download PDFInfo
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- CN211783133U CN211783133U CN202020752794.8U CN202020752794U CN211783133U CN 211783133 U CN211783133 U CN 211783133U CN 202020752794 U CN202020752794 U CN 202020752794U CN 211783133 U CN211783133 U CN 211783133U
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- chamfer
- substrate
- crankshaft
- detection
- gauge
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Abstract
The utility model discloses a bent axle major part chamfer gauge, including first base plate and with first base plate one end vertically second base plate, be equipped with first chamfer on the interior interface of first base plate and second base plate, the both ends of first chamfer are equipped with first detection recess and second respectively and detect the recess. The gauge has the advantages of simple structure, simple operation, capability of detecting and judging the size and the angle of the crankshaft big head chamfer on line, high detection speed, easy identification of defective products, convenient operation, low manufacturing cost, high identification accuracy and high efficiency.
Description
Technical Field
The utility model relates to an auto-parts makes detection utensil, specifically is a bent axle major part chamfer gauge.
Background
The commercial vehicle crankshaft is one of engine components, and the shape is complex and the machining difficulty is high.
The crankshaft is a key component of an automobile engine, and the assembly requirement of the crankshaft is high. The excircle of the big end of the crankshaft is arranged on the flywheel to play a role of oil sealing, the big end of the crankshaft is subjected to overlarge chamfer angle to influence the big end oil sealing, and the big end of the crankshaft is difficult to be arranged on the flywheel when the big end of the crankshaft is too small chamfer angle, so that the big end of the crankshaft is required to be controlled and ensured in the machining process. At present, the size of the large-end chamfer of the crankshaft is basically measured by a vernier caliper, an inspector can not control the size tightly, and the crankshaft is produced in large batch, so that defective products can easily flow out. In addition, the detection mode cannot detect the size of the crankshaft chamfer angle, and the defect of the large-head chamfer angle cannot be identified.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a bent axle major part chamfer gauge to prior art not enough. The gauge has the advantages of simple structure, simple operation, capability of detecting and judging the size and the angle of the crankshaft big head chamfer on line, high detection speed, easy identification of defective products, convenient operation, low manufacturing cost, high identification accuracy and high efficiency.
Realize the utility model discloses the technical scheme of purpose is:
a crankshaft big-end chamfer gauge comprises a first substrate and a second substrate perpendicular to one end of the first substrate, wherein a first chamfer is arranged on an inner joint surface of the first substrate and the second substrate, a first detection groove and a second detection groove are respectively arranged at two ends of the first chamfer, the inner joint surface of the first substrate and the second substrate is a first plane, the inner joint surface of the second substrate and the first substrate is a first vertical plane, the first detection groove is perpendicular to the first plane, the second detection groove is perpendicular to the first vertical plane,
the two surfaces forming the width of the first detection groove in the first detection groove are respectively a first detection surface and a second detection surface, the two surfaces forming the width of the second detection groove in the second detection groove are respectively a third detection surface and a fourth detection surface, wherein the first detection surface and the fourth detection surface are the maximum limit size of the large-head chamfer of the crankshaft to be detected, the second detection surface and the third detection surface are the minimum limit size of the large-head chamfer of the crankshaft to be detected,
the specification of the first detection groove is the same as that of the second detection groove.
The angle of the first chamfer is 30 ° ± 1 °.
The width of the first detection groove is 0.4mm, the vertical distance between the first detection surface and the first vertical surface is 1.7mm, the vertical distance between the second detection surface and the first vertical surface is 1.3 mm, the vertical distance between the third detection surface and the first plane is 0.67 mm, and the vertical distance between the fourth detection surface and the first plane is 1.07 mm.
The length of the first substrate is greater than that of the second substrate, the width of the first substrate is the same as that of the second substrate, and the length of the first substrate is smaller than or equal to 35mm, so that interference between the excircle of the step of the crankshaft large head and the gauge is prevented.
The roughness of the first chamfer plane, the first plane of the first substrate and the first vertical plane of the second substrate is Ra0.4, so that the shaft neck is prevented from being scratched when the gauge is in contact with the surface of the finish-machined crankshaft shaft neck.
Chamfers are arranged at the right angles of the first substrate and the second substrate, so that the crankshaft or fingers of a detector are prevented from being scratched when the gauge is used.
The first substrate and the second substrate are connected into a whole.
The use process of the crankshaft big end chamfer gauge is as follows:
(1) closely attaching a first vertical surface of the gauge to the end surface of the large end of the crankshaft to be detected, and closely attaching a first plane of the gauge to the excircle of the large end of the crankshaft to be detected;
(2) the first detection groove and the second detection groove of the gauge are visually inspected, if the chamfer of the large end of the detected crankshaft falls in the range between the first detection groove and the second detection groove, the first chamfer of the gauge is visually inspected, and if the chamfer of the large end of the detected crankshaft is tightly attached to the first chamfer of the gauge, the judgment is qualified; if the chamfer angle of the large end of the crankshaft to be detected does not cling to the first chamfer angle of the gauge, the crankshaft is unqualified; and if the chamfer angle of the large end of the detected crankshaft is out of the range between the first detection groove and the second detection groove, determining that the crankshaft is unqualified.
The gauge has the advantages of simple structure, simple operation, capability of detecting and judging the size and the angle of the crankshaft big head chamfer on line, high detection speed, easy identification of defective products, convenient operation, low manufacturing cost, high identification accuracy and high efficiency.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment;
FIG. 2 is an enlarged schematic view at I in FIG. 1;
FIG. 3 is a schematic diagram illustrating detection of a large-end chamfer of a crankshaft according to an embodiment;
fig. 4 is an enlarged schematic view of P in fig. 3.
In the figure, 1, a first substrate 11, a first plane 12, a first substrate length 13, a first substrate width 2, a second substrate 21, a first vertical plane 22, a second substrate length 23, a second substrate width 3, a first chamfer 4, a first detection groove 41, a first detection surface 42, a second detection surface 5, a second detection groove 51, a third detection surface 52, a fourth detection surface 7, a crankshaft big end excircle 8, a crankshaft big end surface 9 and a crankshaft big end chamfer.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments, but the present invention is not limited thereto.
Example (b):
referring to fig. 1-2, a crankshaft big end chamfer gauge comprises a first substrate 1 and a second substrate 2 perpendicular to one end of the first substrate 1, a first chamfer 3 is arranged on an inner joint surface of the first substrate 1 and the second substrate 2, a first detection groove 4 and a second detection groove 5 are respectively arranged at two ends of the first chamfer 3, wherein the inner joint surface of the first substrate 1 and the second substrate 2 is a first plane 11, the inner joint surface of the second substrate 2 and the first substrate 1 is a first vertical plane 21, the first detection groove 4 is perpendicular to the first plane 11, the second detection groove 5 is perpendicular to the first vertical plane 21,
the two surfaces forming the width of the first detection groove 4 in the first detection groove 4 are respectively a first detection surface 41 and a second detection surface 42, the two surfaces forming the width of the second detection groove 5 in the second detection groove 5 are respectively a third detection surface 51 and a fourth detection surface 52, wherein the first detection surface 41 and the fourth detection surface 52 are the maximum limit size of the large-head chamfer 9 of the detected crankshaft, the second detection surface 42 and the third detection surface 51 are the minimum limit size of the large-head chamfer 9 of the detected crankshaft,
the specification of the first detecting groove 4 is the same as that of the second detecting groove 5, and the depth of the first detecting groove 4 is 5mm in this example.
The angle of the first chamfer 3 is 30 ° ± 1 °, in this case 30 °.
The width of the first detection groove 4 is 0.4mm, the vertical distance between the first detection surface 41 and the first vertical surface 21 is 1.7mm, the vertical distance between the second detection surface 42 and the first vertical surface 21 is 1.3 mm, the vertical distance between the third detection surface 51 and the first plane 11 is 0.67 mm, and the vertical distance between the fourth detection surface 52 and the first plane 11 is 1.07 mm.
The length 12 of the first substrate is greater than the length 22 of the second substrate, the width 13 of the first substrate is the same as the width 23 of the second substrate, the length 12 of the first substrate is less than or equal to 35mm, the length 12 of the first substrate is 35mm, the length 22 of the second substrate is 10mm, and the width 13 of the first substrate is 15 mm.
The roughness of the plane of the first chamfer 3, the first plane 11 of the first substrate 1 and the first vertical plane 21 of the second substrate 2 are all Ra0.4, so that the shaft neck is prevented from being scratched when the gauge is in contact with the surface of the finished crankshaft shaft neck.
Chamfers are arranged at the right angles of the first substrate 1 and the second substrate 2, so that the crankshaft or fingers of a detector are prevented from being scratched when the gauge is used.
The first substrate 1 and the second substrate 2 are connected into a whole.
The use process of the crankshaft big end chamfer gauge is as follows:
(1) closely attaching a first vertical surface 21 of the gauge to the end surface 8 of the large end of the crankshaft to be detected, and closely attaching a first plane 11 of the gauge to the excircle 7 of the large end of the crankshaft to be detected;
(2) visually inspecting a first detection groove 4 and a second detection groove 5 of the gauge, visually inspecting a first chamfer 3 of the gauge if a detected crankshaft big-end chamfer 9 falls in the range between the first detection groove 4 and the second detection groove 5, and judging the crankshaft big-end chamfer 9 is qualified if the detected crankshaft big-end chamfer is tightly attached to the first chamfer 3 of the gauge; if the chamfer 9 of the big end of the crankshaft to be detected does not cling to the first chamfer 3 of the gauge, the crankshaft is unqualified; and if the detected crankshaft big head chamfer 9 falls out of the range between the first detection groove 4 and the second detection groove 5, determining that the crankshaft big head chamfer is unqualified.
Claims (5)
1. A crankshaft big head chamfer angle gauge is characterized by comprising a first substrate and a second substrate which is vertical to one end of the first substrate, wherein a first chamfer angle is arranged on an inner joint surface of the first substrate and the second substrate, a first detection groove and a second detection groove are respectively arranged at two ends of the first chamfer angle, the inner joint surface of the first substrate and the second substrate is a first plane, the inner joint surface of the second substrate and the first substrate is a first vertical plane, the first detection groove is vertical to the first plane, the second detection groove is vertical to the first vertical plane,
the two surfaces forming the width of the first detection groove in the first detection groove are respectively a first detection surface and a second detection surface, the two surfaces forming the width of the second detection groove in the second detection groove are respectively a third detection surface and a fourth detection surface, wherein the first detection surface and the fourth detection surface are the maximum limit size of the large-head chamfer of the crankshaft to be detected, the second detection surface and the third detection surface are the minimum limit size of the large-head chamfer of the crankshaft to be detected,
the specification of the first detection groove is the same as that of the second detection groove.
2. The crankshaft bull nose chamfer gauge of claim 1, wherein the angle of the first chamfer is 30 ° ± 1 °.
3. The crankshaft bull head chamfer gauge of claim 1, wherein the length of the first base plate is greater than the length of the second base plate, the width of the first base plate being the same as the width of the second base plate.
4. The crankshaft bull head chamfer gauge of claim 1, wherein the roughness of the first chamfer plane, the first plane of the first base plate and the first perpendicular plane of the second base plate are each ra 0.4.
5. The crankshaft bull head chamfer gauge of claim 1, wherein a chamfer is provided at a right angle on both the first and second base plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020752794.8U CN211783133U (en) | 2020-05-09 | 2020-05-09 | Bent axle major part chamfer gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020752794.8U CN211783133U (en) | 2020-05-09 | 2020-05-09 | Bent axle major part chamfer gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211783133U true CN211783133U (en) | 2020-10-27 |
Family
ID=72957183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020752794.8U Active CN211783133U (en) | 2020-05-09 | 2020-05-09 | Bent axle major part chamfer gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211783133U (en) |
-
2020
- 2020-05-09 CN CN202020752794.8U patent/CN211783133U/en active Active
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